Spiral ( roller conveyor ) ZM food conveyor

Spiral conveyor is welded in a cylindrical enclosure with a continuous helical blade , rotate the housing with the spiral blades. Was added and the friction material due to centrifugal force effects and lifted random rotation with the shell , and the helical surface materialZM plastic chain conveyor falling under gravity , the coil is rotated together with the material to achieve the forward movement of the material , as does not rotate screw nut for rotation along the translational motion as to achieve the purpose of transportation of materials.
The machine low energy consumption, low maintenance costs ; ends when feeding, can adapt to uneven feed requirements, simultaneously mixing and other transport process requirements , it does not produce jamming phenomenon materials into too much ; facilitate multi- loading and unloading point , the material can be transported at higher temperatures . Suitable for horizontal conveying high temperature materials ; against high temperature , feeding uneven , with anti- crushing requirements, pollution prevention requirements of materials and need to add multi-point discharge process has better adaptability . Practice has proved that , at the time of delivery of cement ZM belt conveyor manufacturerclinker , dry limestone, phosphate rock , ilmenite powder, coal and slag and other materials to good effect.
The end portion of the material feed opening , having a particle size not greater than the diameter of the coil of 1/4 ; intermediate the inlet from the feed material , the average particle size of not more than 30 mm . To ensure the barrel distortion is not generated , the feed temperature must be controlled below 300 ℃. The aircraft in the transportation of abrasive material on the blade and a large trough wear extremely serious. The screw conveyor is designed primarily with the delivery of its abrasive silica therefore appropriate to adopt a large spiral conveyor.

ZM food conveyor The metal detector sensitivity adjustment

The metal detector sensitivity adjustment:1 if the detection distance is not up to the requirements or high sensitivity and even cause instability or no metal probe scan also sound or vibration ZM air to water heat exchanger on the human body, should adjust thesensitivity.2 the sound, vibration switch (10) on the "free" state, with a smallThe word screwdriver from the small hole detector on the handle is extended in a clockwise rotation, adjustmentTo ZM plastic chain conveyor sound, then counterclockwise rotation to just don't sound after the counterclockwise rotation of a semi circle, to meet the requirements so far sensitivity.

ZM plastic chain conveyor system maintenance

In order to ensure the reliable delivery of equipment operation, the most important is to discover and remove the faults may occur. Therefore the operator must observe the transport work, such as abnormal shall timely handle. The mechanic should or parts of regular inspection and check for any need to pay attention, this is very important. ZM drag chain conveyor For example, a roller, is not very important, but the material conveyor wear high speed conveyor belt may soon put its casing wear, the emergence of a blade, the blade can seriously damage a conveyor expensive belt. The trained workers and experienced staff can find the impending accident, and nip in the bud. Belt conveyor belt accounts for a considerable proportion of the whole ZM Plastic belt conveyor cost. In order to reduce the cost of replacement and repair of conveyor belt, must pay attention to the operating personnel and repair personnel to conveyor belt running and repair knowledge training.

Food metal detectors

Metal detector is a device designed to detect metal, except for the detection of metal casing or metal parts of mines, can also be used to detect hidden within the walls of the wires, buried plastic chain conveyor pipes and cables, and even underground treasure hunters can find metal objects buried in the ground. Metal detectors can also be carried out as a youth national defense education and science pallet conveyor activities utensils, of course, may well be a fun and entertaining toys. Specifically for meat, mushrooms, sweets, drinks, food, fruits and vegetables, dairy products, aquatic products, health products, food additives and condiments, such as in the non-ferrous metals and ferrous metal impurity detection; chemicals, rubber, plastics, textiles, leather, chemical fiber, toys, medicine, health care products, biological products, cosmetics, gifts, packaging, paper in metal detection.

Telescopic belt conveyor

Tail wheel telescopic belt conveyors, including those equipped with lift roller (2) of the fixed frame (1) and movable pallet conveyor telescopic rack (3), the first round of stretching on the rack (15) and a fixed rack (5) mounted on the frame of the endless belt (6), a belt drive wheel (9) and drive means (11), characterized in that before screw conveyor  the stretching frame, respectively, with the rear end of the follower wheel and the wheel (7 ), and with the lower end of the telescopic frame and running wheel (13) events in feet (14) are connected together and movable relative to the fixed frame level.

Large angle belt conveyor can be tilted a transport of materials handling equipment

Large angle belt conveyor can be tilted a transport of materials handling equipment, conveyor inclination within the range of 0 ° ~ 90 ° range. By belt conveyor with corrugated wall pallet conveyor  and diaphragms, so this is also known as corrugated sidewall belt conveyor. Large angle inclined conveyor belt conveyor maximum height of up to 203m, the maximum transmission capacity has reached 6000t / h, the maximum vertical Belt conveyor material particle size 400mm. In underground mining engineering, open-cast mining, and large self-unloading peers have adopted, and the first in the country to produce material for a good economic on steel blast furnaces.

Stainless steel mesh belt conveyor

A stainless steel mesh belt conveyor line metal mesh belt conveyor , using wire mesh belt prepared for the carrier , in the middle on both sides wear pin connection with the

installation of the chain , heat exchange manufacturers allowing the use of a chain sprocket chain conveyor belt along the direction Sports ; also directly with a special plastic bag roller to

Direct drive with Network for the former are generally applicable to materials heavier and longer length delivery form , used for cooling , drying and other requirements of the

transportation industry , air to water heat exchanger and therefore the density of the network with a more dilute , which generally use a relatively dense mesh belt for smaller transport materials or

special short distance

Special transport object , such as a belt conveyor of a ferromagnetic material . Heavy mesh belt conveyor is generally no longer than 15 meters, a width of not more than two

meters ; lightweight stainless steel mesh conveyor belt length is generally not more than 10 meters .
We can use Teflon mesh conveyor belt at the time of delivery of the high temperature and density of the mesh belt also ( 2 * 2, 4 * 4 ) optional temperature from -10 degrees

Celsius to 200 degrees Celsius , as Teflon mesh belt softness and therefore will not damage the material of choice for a special delivery of the ambient temperature

Cement special heat-resistant properties of the conveyor belt

Since most of the cement temperature around 200 degrees , high temperatures are used in selecting the heat tends to be high on the belt grinding low shrinkage tape core ! The

plastic cover ( EPDM rubber ) added asbestos cloth with heat , high wear low shrinkage cloth better stability ,belt conveyor design  high adhesive strength , plus asbestos cloth helps to reduce heat

transfer to the unpaid portion , adhesive plastic cover layer between aging and has a good effect on , can effectively extend the service life of the conveyor belt , heat

resistance than EPDM rubber, belt conveyor manufacturer anti-aging effect is more obvious ! !
Personal tips:
A common transport coal on the conveyor belt with it.
2 heat-resistant conveyor belt transporting cement clinker according to the actual temperature to the temperature of the heat requirements of the conveyor belt .
3 After filling bags of cement delivery with strong NN200 type as well. Wear and tear on the conveyor belt transporting cement material larger than normal , it is recommended to

glue surface thickened.

Intelligent manufacturing conveyor will help to take off again

In recent years, as China's manufacturing exports has brought a huge impact. In this case , improve production efficiency , the pursuit of maximization of surplus value , while

reducing labor costs, China's manufacturing industry to become the greatest degree of reducing the primary means of export prices , so building automation equipment production

line is very important. As automation equipment production line is now an important part of one production line Plastic belt conveyor is a link to all the necessary equipment and processing

sectors . With the rubber belt conveyor production line automation equipment to connect into a line from the point . Our country is producing manufacturing country , the production of our

products in the international market has been " affordable" is known, it is because of our abundant labor resources , workers' wages are relatively low, so our products have

been produced by an absolute price advantage in the international market occupy a large market share. Generation of automated production line equipment is not just the human

liberated , but also greatly improves production efficiency and reduce the error rate in the production process can be said to have a production line automation equipment was

able to achieve a mechanical substitute labor force people into industrial automation era. Automation equipment production line is produced by the production line model evolved

, and the first application of the assembly line is the 1920s automobile manufacturing industry. Since then , along with the continuous progress of industrial technology ,

automation equipment production lines gradually to achieve universal application in various industries .

Conveyor belt deviation should check the location and how to deal with

We know the device when in use will have a lot of questions, then Shang Hao conveyor manufacturers will tell you about when running Flexible Roller Conveyor belt if the deviation , then how to

do , in fact, cause such a failure for many reasons, including the most important is the daily maintenance and

Maintenance is not the best place . Well , the conveyor belt deviation , to check the location and processing methods , what does ?
( 1 ) Check the roller Gravity roller conveyor transverse centerline longitudinal centerline and degree of coincidence
If there is no coincidence , then , plus the deviation exceeds 3mm , then it needs to be adjusted , but also according idlers elongated mounting holes on both sides to adjust ,

so that some of the specific method is to look at the mesh belt conveyor idlers which side bias which group lateral conveyor belt moves toward the forward direction

Move, there is another side after the shift.
( 2 ) Check the head, tail rack bearing two plane deviation
If the deviation is greater than two planes 1mm, the two planes should be adjusted to align to the same plane. As for the head drum , the adjustment method is: if the right side

of the drum belt shift , then the right roller bearing should be moved forward or backward on the left bearing

; If the left side of the drum belt shift left of the mobile roller bearing, direction of movement above; while the tail roller adjustment methods are opposite to the head drum

.
( 3) Check the position of the material on the conveyor belt
If the material on the conveyor cross section , and is not centered , it will cause the belt deviation. If the material is skewed to the right , then the belt is deviation to

the left , and vice versa. Therefore, when used, should try to make the material center , you can also increase the blocking plate , because blocking plate

Can change the direction and position of the material , thus avoiding belt deviation phenomenon occurs .

Transportation equipment industry applications

Metallurgy, electric power , coal, chemicals, building materials , docks, food and so on.
Vacuum conveying device for Belt conveyor powder materials , has an easy to install, easy to clean , low noise , dust transportation advantages. Meet the pharmaceutical, food

industry requirements .
Vacuum conveying equipment works
1 . Compressed air driven , multi-level jet pump (A) to create a vacuum .
2 . The discharge end of the valve (B) close , then silos (C) and pipe (D) creates a vacuum .
3 . Vacuum , the material from the suction position (E) via pipeline inhalation powder silo .
4 . Filters (F) achieve a good separation of gas and powder is delivered .
5 . At the same time Turn conveyor powder , compressed air balloon filled recoil impulse to (G)
6 . Vacuum pump stops running , the discharge end of the valve opening , the whereabouts of the material to the discharge position . Meanwhile, the recoil of compressed air

inside the balloon release , self-cleaning adhesive powder particles in the filter .
7 . Vacuum pump working again , start a new round of the cycle. The transportation process , suction outfeed time from pneumatic or electric controller (H) control .

Classification and the classification of the introduction
Transportation equipment is in a certain line of material handling machinery continuous transport of materials , also known as pipelining . Transmission lines can be horizontal,

inclined and vertical conveyor can also be composed space transmission lines , transmission lines are generally fixed. Conveyor conveying capacity , long distance

, Also in the transportation process while completing a number of process operations, so widely used.
Plate chain line : the chain plate towing plane transport workpieces to do sports, to achieve the purpose of the production process . A modular assembly line model, according to

the median worker process requirements set . Station is equipped with an electrical outlet , toolbox, feed box , so that the whole process to achieve delivery, there

Sequence .
Plug the pipeline : the chain drag tooling trolley , horizontal loop operation , the workpiece assembly .
Differential chain pipeline : the use of special aluminum alloy for rail , towing tooling plate with chain growth as the transmission medium . A modular assembly line model,

according to the median worker process requirements set . Station is equipped with foot switch, power outlet , station stopper , craft drawing board

, Lighting , etc., provided on line body lifting pan machine , lifting rotary table , so that the whole process to achieve automatic operation.

Conveyors safety rules

A conveyor belt or pedestrians prohibited by people, belt slipping a hand to pull the belt is strictly prohibited, to avoid accidents;

Two, the industrial conveyor must be inspected prior to use part of the operation, the tape fastener and bearing device is normal, protective equipment is complete. Tape tensioner degrees

required before starting to adjust to the appropriate level.

Third, the industrial belt conveyor should load start. Other operating normally before feeding. Prohibits driving after the first feeding.

Fourth, run the tape deviation phenomenon occurs, you should stop adjustment shall not be reluctant to use, so as not to wear edges and increase the load.

Fifth, several conveyor running series, we should begin the discharge end, the sequence starts. All normal operation only after the feeding.

Six, working environment and sent the material temperature not higher than 50 ℃ and below -10 ℃. Shall not be transported with a pH of oils and organic solvents constituent

materials.

Seven, the conveyor motor must be well insulated. Mobile conveyor cables do not Luanla and dragging. Motor must be grounded reliably.

Eight, must be stopped before stopping feeding, unloading and other material on the belt to make deposits before parking.

Conveyor belt Troubleshooting

A belt conveyor belt deviation runtime is the most common faults. To address such failures is important to note the dimensional accuracy of installation and daily maintenance.

There are several reasons for deviation, to be based on the difference between handling different reasons.

1 Adjust the Power Roller Conveyor idlers bearing belt in the middle of the entire belt conveyor idlers deviation, adjust the position to adjust the deviation; idlers in the manufacture

of both sides of the mounting holes are worked into holes for be adjusted. The specific method is belt

Bias which side, which side idlers forward direction toward the belt forward, backward, or the other side. Belt upward direction of deviation is lower roller group should be at

the left, the upper roller group moved to the right place.

2 Install aligning roller group aligning roller group has many types such as an intermediate shaft type, four-link, vertical roller type, etc. The principle is the use of block

or roller rotates in the direction in the horizontal plane lateral thrust block or generate the Automatic belt adjustment belt deviation reaches to the heart of the purpose.

Generally lose the belt

Sending machine or when the total length of the shorter run-time two-way conveyor belt using this method is more reasonable, because the shorter belt conveyors easier deviation

and not easy to adjust. And long belt conveyor is best not to use this method, because self-aligning roller group life belt use would yield

Students have been affected.

3 Adjust the drive pulley and the driven pulley and bend pulley position adjustment bend pulley belt deviation adjustment is an important part. Because a belt conveyor with at

least two to five rollers, all the rollers must be perpendicular to the installation location of the longitudinal direction of the Belt conveyor centerline, if the deflection

Too large deviation bound to happen. Adjustment Method and its group of similar idlers. For the head drum as the drum belt deviation to the right, the right of the bearing

should be moved forward, the belt deviation to the left of the drum, the left bearing housing should be moved forward, also the corresponding the left

Side or right side of the bearing housings after the shift after shift. Rear roller adjustment method and the head drum opposite. After repeated adjustments until the belt

transferred to an ideal location. Adjust the drive or bend pulley in the best pre-install its exact location.

4 tension belt tension adjustment at the adjustment at the conveyor belt deviation adjustment a very important part. Hammer at the upper two tensioning idler pulley in addition

to other than perpendicular to the longitudinal direction of the belt should be perpendicular to the vertical line of gravity, which is to ensure its axis horizontal centerline.

The use of spiral

Tensioned tensioning or hydraulic cylinders, two tensioning roller bearing shall simultaneously pan, to ensure the longitudinal axis of the drum and the belt perpendicular to

the direction. Specific method of adjusting the belt deviation adjustment of the drum at similar.

5 reprinted point blanking position on the belt deviation of reproduced material blanking at the point position on the belt deviation has a very big impact, especially in the

two belt conveyor in the horizontal plane perpendicular to the projection of a greater impact. Usually reproduced points should be considered down two belt conveyor relative

height

. The relative height of the lower horizontal velocity component of the material the greater the impact on the lower side of the belt is greater, while the material is difficult

to center. The cross section of the material on the belt deflection, resulting belt deviation. If the material is biased to the right, then the belt deviation to the left, and

vice versa

Contingent.
In the design process should be possible to increase the relative height of two belt conveyor. In space-constrained mobile bulk material handling machinery down funnel, guide

trough and other pieces of form and size should be seriously considered. General guidance for the width of the trough belt width should be about two-thirds compared together

Appropriate. In order to reduce or avoid the belt deviation increase blocking plate blocking materials, changing direction and position of the whereabouts of the material.

6-way running conveyor belt deviation adjustment bidirectional running belt conveyor belt deviation adjustment than the one-way conveyor belt deviation relative to the

adjustment much more difficult, specific adjustments should be adjusted in a certain direction, and then adjust another direction. Adjustment should be carefully observed

The belt movement direction and the relationship between the deviation tendency, one by one to adjust. Emphasis should be placed on the drive pulley and bend pulley adjustments,

followed by the adjustment of the roller and the material blanking point adjustment. Also note that the belt in the belt section vulcanized joints should be the length direction

of the force are

Uniform, the use of both sides of the chain traction force equal as possible.

Chinese ancient history and uses of belt conveyor

Conveyor history of ancient China high drum water overturned cars and mentioning, is the modern scraper bucket elevators and conveyors prototype; 17th century, began to apply

ropeway transport bulk materials; 19th century, various modern structures conveyor has emerged.
1868, in the UK there has been belt; 1887, in the United States appeared screw conveyor; 1905, appeared in Switzerland steel belt conveyor; 1906, in the United Kingdom and

Germany appeared gravity conveyor. Thereafter, conveyors manufactured by mechanical, electrical, chemical and metallurgical

Kim industrial technological progress, and constantly improve gradually from inside to complete the delivery of the workshop, developed to accomplish within the enterprise,

between enterprises and even between cities material handling, mechanized and automated material handling systems become an indispensable component.
Features conveyor is ideal continuous and efficient coal transportation equipment, and other transport equipment (such as locomotive class), compared with the long distance

transport, large volume, continuous conveyor, etc., and reliable operation, easy to automate and centralize of control, especially for high-yield ore

Wells, coal mining belt has become mechatronics technology and equipment of key equipment. Conveyor main characteristic is the body can easily scalable, with a storage

warehouse, the tail may vary coalface advance elongation or shortening, compact, not to set the basis for direct

Laying on the floor in the roadway, racks lightweight, disassembly is very convenient. When the transport capacity and transport distance is large, can be equipped with an

intermediate drive means to meet the requirements. According to the requirements of transportation technology that can stand-alone carrier, but also multi-unit synthesis

horizontal or inclined transportation system to transport materials.

Pallet conveyor is widely used in metallurgy, coal, transport, water, chemicals and other sectors, because it has a transmission capacity, simple structure, easy maintenance, low

cost, versatility and other advantages. Belt is also used in building materials, electricity, light industry, food, port, ship

Other departments.

Summary belt consisting of

Summary of conveyor components
Universal conveyor from the conveyor belt, roller, roller and the drive unit, brakes, tensioning device, loading, unloading, cleaning devices such components.
Conveyor
Commonly used with two kinds of rubber bands and plastic. Rubber band for working environment temperature -15 ~ 40 ℃ between. Material temperature does not exceed 50 ℃,

exceeds 50 ℃ above must inform the manufacturer when ordering, you can use heat resistant Belt conveyor. Upward transport of Granules inclination 12 ° ~ 24 °. For large

Steep conveyor belt skirts available. Plastic belt with oil, acids, alkalis, etc., but the climate and poor adaptability, easy to slip and aging. Bandwidth is the main technical

parameters of belt conveyor.
Idler
There trough roller, flat-shaped roller, spherical roller, buffer roller. Trough roller (composed by the three roller) bearing bearing branches for conveying granular materials;

aligning roller to adjust the lateral position with, to avoid deviation; buffer roller mounted in place by the material in order to reduce material on the belt punch

Blow.
Roller
Minute drive rollers and bend pulley. Drive rollers are main components of power transmission. Of single drum (tape on the drum wrap angle of 210 ° ~ 230 °), double drum (wrap

angle of 350 °) and multi-cylinder (for power) and so on.
Tensioning device
Its role is to achieve the necessary belt tension, in order to avoid slipping on the drive roller, and to the conveyor belt between the deflection rollers ensure that the

required range. Contains spiral tensioning device, hammer tensioning device, car type tensioning device.
The first is its technical superiority and reliable operation. Require continuous operation in many important production units, such as the transport of coal power plants, steel

mills and cement conveying bulk materials, as well as loading and unloading of ships in ports all adopts belt conveyor. On these occasions, such as downtime, the loss is huge

Big. If necessary, take a class to a group of Power Roller Conveyor can work continuously.
Conveyor low power consumption. As the material almost no relative movement of the conveyor belt, not only the running resistance (about 1/3-1/5 scraper conveyor), but also the

wear and broken cargo are small, high productivity. These are conducive to lower production costs.
Conveyor belt conveyor line adaptable and flexible. Line length according to need. Short as a few meters, length up to 10km or more. Can be installed in a small tunnel, ground

transportation can also be set up in the region over the chaos and danger.

Six characteristics roller conveyor

1 roller conveyor for all types of boxes, bags, trays and other pieces of cargo, bulk materials, small items or items to be irregular or working inside on the tray conveyor.
2 roller conveyor capable of handling very heavy piece of material, or withstand greater impact loads.
3 structure forms, roller conveyor can be divided into power by driving drum lines and non-powered drum line, according to arrangement can be divided into horizontal conveyor

drum line, drum line and cornering inclined pallet conveyor roller conveyor line. Can also be specially designed according to customer requirements, to meet the various types of

customers

Kind of requirements.
4 drum line of convergence between the easy transition, the available number of drum lines and other transportation equipment or plane consisting of complex logistics

transportation system, complete the wide range of technology needs.
5 can be used to achieve accumulation of material accumulation roller conveyor.
6 Simple structure, high reliability and easy maintenance.

Conveyors safety rules

A conveyor belt or pedestrians prohibited by people, belt slipping a hand to pull the belt is strictly prohibited, to avoid accidents;
Two, the conveyor must be inspected prior to use part of the operation, the tape fastener and bearing device is normal, protective equipment is complete. Tape tensioner degrees

required before starting to adjust to the appropriate level.
Third, the belt conveyor should load start. Other operating normally before feeding. Prohibits driving after the first feeding.
Fourth, run the tape deviation phenomenon occurs, you should stop adjustment shall not be reluctant to use, so as not to wear edges and increase the load.
Fifth, several conveyor running series, we should begin the discharge end, the sequence starts. All normal operation only after the feeding.
Six, working environment and sent the material temperature not higher than 50 ℃ and below -10 ℃. Shall not be transported with a pH of oils and organic solvents constituent

materials.
Seven, the food conveyor motor must be well insulated. Mobile conveyor cables do not Luanla and dragging. Motor must be grounded reliably.
Eight, must be stopped before stopping feeding, unloading and other material on the belt to make deposits before parking.

Advantages and disadvantages of pneumatic conveying systems

Pneumatic conveying systems and other solid delivery systems, such as belt conveyors, screw conveyors and other vibrations and compare their advantages and disadvantages are as

follows.
 (A) Benefits
a. All solid conveying equipment and pneumatic conveying systems, pneumatic conveying systems may be small particles of solid material continuously conveyed the most suitable

method, also suitable for intermittently to large quantities of particulate material from the tanker, rail vehicles and cargo transported to silos .
b. Pneumatic conveying system designed for full use of space with excellent flexibility. Conveyor belt and transported in essentially only one direction, if you need to change

the direction of transport of materials or promotion, you must have a transit point and need to have a second separate conveyor to pick up

. Pneumatic conveyors can be up, down or around the building a large delivery of materials and equipment and other obstructions that can make up or avoid other duct space

occupied by the operating device.
c. Pneumatic conveying system used by a variety of solid material conveying pumps, flow distributor and the receiver is very similar to the fluid operation of the device, so

most pneumatic conveyors are easily automated by a center console operator. The operator can save the cost.
d. And other solid material handling methods, pneumatic conveyors fire and explosion risk is small, it has safety advantages. Complete pneumatic conveying system application can

save premiums because of reduced damage and fire hazard.
e. A design better pneumatic conveying systems often are clean and eliminate pollution of the environment. In the case of the vacuum conveying system, any leakage of air is

inward, vacuum and pressurized both devices are fully enclosed and sealed monomers can thus contamination of materials

Limited to a minimum. Dust control point should be the main feeder import and export of solid collector can be designed into a dust-free operation.
(2) Disadvantages
a. And other bulk solids material handling equipment compared to pneumatic conveying system power consumption higher fees (means and mechanical conveyor systems required per ton

of material transported highest power).
b. Use is restricted. Pneumatic conveying system can only be used to transport must be relatively dry, abrasive, sometimes need to be able to free-flowing materials. Typically,

if the end product not broken, the brittle, easy fragmentation of the product is not suitable for pneumatic roller conveyor.

Unless it is specially designed equipment, or hygroscopic and caking of material, it is inappropriate to use pneumatic conveying systems transport. Easily oxidized materials

suitable for conveying air, but can be recycled back with a gas inert gas instead of air. Because the pipeline, fans and other components

Contact with the material can easily be abrasive and damage.
c. Transmission distance is limited. So far, pneumatic conveying systems can only be used for relatively short transport distance, generally less than 3000 m. Design of long

transmission lines in the design of its main obstacle is the difficulties encountered along the pump station.
d. Small changes in material properties (such as bulk density, particle size distribution, hardness, angle of repose, abrasive resistance, explosion potential) can cause

operational difficulties.

Transportation machinery loader transmission and steering system structure principle

1 Transmission
(1) Transmission
Transmission by the torque converter and the transmission of two parts. One end of the torque converter and diesel engines, transmissions directly connected to the other end of this compact, reliable connection, is currently the most used wheel loaders at home and abroad, the most common type of connection. There are other transmission of

A whole and Diesel split, or directly connected to the converter and diesel engine and gearbox split, between the drive shaft connection. Incline Belt conveyor
The gearbox has a forward, one back two planetary line, plus a direct block (II block), a total of two forward, one back three blocked. Simple structure, less gear, the full realization of the single-lever control. Converter has two turbines, two turbines directly to the gearbox input shaft (gear),

Light-load speed of each gear state. A turbo is only transmitted through clutch gearbox input shaft, when the respective gear torque increase, the speed is reduced to clutch when combined with two turbines to work at the same time, the corresponding block of low speed high torque state, all this is away from the beyond

By the speed of the low clutch automatic. In fact, the transmission has four forward gears, 2 reverse gear, because each block has a high-speed automatic transmission. Therefore, the transmission in this area has shown its advantages, more than ordinary multi-gear transmission control lever operated better performance. Flat belt conveyor

But it also has a very major drawback, double turbine torque converter efficiency than the simple three components of the torque converter is low, the power loss is large. The current fixed-shaft gearbox yet the use of electronic technology, are more common rod manipulation.
(2) drive axle
Drive axle from the front axle, rear axle components. Because loaders require large traction, so are modern wheel loader axle drive axle. Front axle mounted directly on the front frame, rear axle swinging bridge, through the sub-frame is connected to the rear frame. Modern wheel loaders basically using hinges

Fit steering, so in addition to front and rear axle spiral bevel gears in the main drive to the different spin, the other parts are all common. Third generation appeared in the center rear axle swing, no longer used subframe and rear frame with swing frame and connected to the emergence of the rear axle housing and the main drive bay and front axle nowhere

With the remaining pieces still with the front axle completely generic.
China's current drive axle wheel loaders are basically using the whole axle, full floating axle, with the main drive and two wheel drive axle gear. The main drive is generally used a spiral bevel gear, wheel generally used planetary wheel reduction.
(2) Steering System
At present, China has been widely used wheel loader fully hydraulic steering system. ZL50 Wheel Loader because greater weight, for the manipulation of light, are generally full hydraulic flow amplification steering system.
Does not appear to fully hydraulic ago, China's first generation ZL50 wheel loader all using recirculating ball screw nut steering valve directly driven mechanical steering system, and a follower rod with mechanical feedback. The system with hydraulic steering systems, steering force and hydraulic pressure loss are more

Large, and relatively poor reliability. So now has largely been replaced by full hydraulic steering.
Steering with a large displacement normal full hydraulic steering system, more than recirculating ball screw nut better performance, but steering bulky, still not as good as with flow amplifying valve system is superior, therefore, has gradually been eliminated. There is a new coaxial flow amplified steering system. With a small row

Volume hydraulic steering gear, specially modified design, can play the role of the amplifier. This system not only plays fully hydraulic flow amplification system function, but also reduce a flow amplifying valve, superior performance, simple structure and low cost. Currently coaxial flow amplifier because there are still some

Issues to be resolved, therefore not widely used. However, the direction of development, the coming of this coaxial flow amplification steering system (available with or without priority system) may be replaced by other fully hydraulic steering system.

Belt condition monitoring system, part of component design

Conveyor during operation often fails, affecting delivery system stable and reliable operation. In order to find as soon as possible and remove belt failure, you want to belt conveyor line monitoring of running status. In the traditional monitoring system, monitoring software is usually caused by

VB, VC + + written in other languages, which requires not only engineering and technical personnel have a high level of programming, but also to put a lot of development time, enabling the development efficiency and maintainability of the system is restricted; addition, the system interface is simple and achieve fewer features, is far from full

Foot modern automated monitoring systems. Plastic belt conveyor
The system is capable of running real-time monitoring of belt conveyor. Real-time display the current running conveyor speed, temperature, throughput and material accumulated weight, etc.; also be able to over-speed conveyor belt, less speed, skidding, deviation over temperature and other abnormal conditions and make real-time processing. The Department

The hardware system consists ics-30 series belt weigher, JCPP-I-type deviation switches, temperature sensors and signal conditioning circuits, PCL-818L data acquisition card and PC machines. In this system, each of the signal detecting means to collect data acquisition card PCL-818L in the data acquisition

Set Card PCL-818L with power control for each channel corresponding variables linked database, unified management by the power control is given parts of the system operating parameters, operating trends, reports, and alarm events. When there is abnormal phenomenon occurs, the system can be run under the belt conveyor rubber belt conveyor

Requirements, make the appropriate action, automatically cut off the motor control circuit so that the conveyor is stopped.
1.ics-30 series belt weigher
ics-30 series by a belt scale weighing bridge (including load cell), gun system (including speed sensor) and the totalizer three major components. The basic working principle is:
(A) supporting the bridge load cell and said idler detect the weight of material on the belt, belt load produces a proportional electrical output signal;
(2) speed sensor directly connected to the end of the large diameter roller or drum speed, generates a series of pulse signals, each representing a length of the belt speed, the length of the pulse is proportional to the belt speed, when the belt slip or break, the tail drum speed occurs speeding or under speed now

Like, the tail pulley by monitoring changes in speed can be timely and accurate understanding of the belt is slipping or broken, when the tail pulley rotation speed exceeds or falls below a preset value, the device can automatically shut down or alert, so can effectively prevent various accidents

Occurrence;
(3_ Totalizer belt speed and belt load will either signal totalizer with integral method, and converted into engineering units selected, the display shows the current throughput, respectively, and the total throughput.
2.JCPP-I-type deviation switch
Deviation switch by detecting the conveyor belt during operation to offset state signaled automatically to achieve conveyor deviation alarm and automatic shutdown feature to prevent tilting conveyor offset the material spilled. The lateral displacement of the conveyor belt deviation will produce vertical roller deflection

By the vertical roller deflection angle to determine the switching output signal a few levels. When the conveyor slight deviation angle of deflection of the vertical roll ≥ 12 degrees, the switch output an alarm signal; serious deviation when the conveyor belt so that the vertical roll deflection angle ≥ 30 degrees, the switch output two stop signal. Deviation open

Off the drive roller pairs mounted between the rollers and the end of three positions, the general length of the belt mounting three pairs of 100m appropriate.
3.PCL-818L data acquisition card
PCL-818L data acquisition card is a high-performance multi-function data acquisition card, it is PC-based ASI bus structure. The board provides 16 single-ended or 8 differential analog inputs, 16 digital inputs and outputs, 12 should be A / D converter can be achieved 100kHz sampling rate. 16 die

Intended input voltage range: Bipolar ± 0.625V-± 10V; unipolar 0V-10V. Programmable gain for each input channel, 16-channel digital input and output with TTL level compatible. In this system, the use of PCL-818L data acquisition card, four analog inputs, respectively achieved

Current speed on the conveyor belt, the current temperature, the current throughput and material accumulated weight, etc. 4 analog signal acquisition; utilize six digital input points respectively, to achieve a switch on the deviation signal and two alarm alarm signal acquisition ; with a digital output point to control belt transmission

Sending machine drive motor control circuit relays.