Belt conveyor Common Fault Analysis

As a bulk material conveyor belt transport machinery is widely used in terminals, power plants, metallurgy, food and other industries. In the purchase, design, manufacture,

installation and use of belt conveyor device length of some of the new users that they do not always understand. This article from the user point of view, analysis and

explanation

Belt conveyor equipment common fault causes and treatment.
Elevator conveyor


1 belt conveyor belt deviation handling



Belt conveyor belt deviation runtime is the most common faults, pay attention to the dimensional accuracy of installation and daily maintenance. There are several reasons for

deviation, to be based on the difference between handling different reasons.



1.1 Adjust belt conveyor roller bearing group



Throughout the middle of the 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 in order to make adjustments. Belt deflection which side which side idlers forward direction toward the belt forward or backward 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.curve conveyor



1.2 Installation aligning belt conveyor idlers



Spherical roller group has a variety of types, such as intermediate shaft type, four-link, vertical roller, etc., is the use of block or roller rolling direction in the

horizontal plane blocked or automatically generate horizontal thrust to the heart of the belt to adjust the belt deviation purposes. The total length of the belt conveyor

generally shorter or leather

Two-way conveyor belt runs using this method is relatively fair, because the shorter belt conveyor deviation more easily and not easily adjusted.



1.3 Adjust the belt conveyor drive roller and bend pulley position



Drive roller and bend pulley belt deviation adjustment is to adjust the important part. Since at least a belt conveyor rollers 2 to 5, all the rollers must be perpendicular to

the mounting position the longitudinal direction of the conveyor belt center line, will occur if the skew is too large deviation. The adjustment method

And adjustment of roller group similar. 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 Move the left or right side of the bearing housings after setback

.



1.4 Belt conveyor tensioning adjustment at



Belt tension is adjusted 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 center line.



1.5 Belt conveyor transfer points at the location of the belt deviation blanking effect



Reprint of materials at the point blanking position on the belt of the 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, the

ultimate cause belt deviation.



1.6 Bidirectional adjustment of running conveyor belt deviation



Bidirectional operation to adjust the belt conveyor belt deviation deviation than the one-way conveyor belt adjustment relative to a lot of problems, adjustment should be

adjusted in detail a certain direction, and then adjust the other direction. Adjust the belt to carefully observe the movement direction of the relationship with the deviation

trend,

Be adjusted individually.
2 scattering material conveyor belt



Caesar feed belt conveyor is a common topic, reason is multifaceted. To strengthen the daily care and maintenance.



2.1 reprinted scattering material at the point of



Reprinted point spread mainly in the fall hopper feed, guide trough, etc.. If severe overload belt conveyor, belt conveyor guide trough backgauge rubber apron damaged steel

guide trough at design time far away from the belt so that the material is relatively long rubber apron out of guide trough.



2.2 The concave section of scattering material when vacant belt



Concave section belt interval when the radius of curvature smaller concave segment will generate vacant belt, then the belt into a trough situation changes, the belt has left

the trough idlers, generally groove angle becomes smaller, so that the material spread out department. Therefore, as far as possible in the design phase should use a larger

concave

Segment radius of curvature to prevent such situations from occurring.



2.3 when the scattering material deviation



When Caesar feed belt deviation is due to both edges of the belt height at run time changes, while high, while the other side is low, the low side of the material from spreading

out, processing method is to adjust the belt deviation.



3 belt conveyor abnormal noise



The driving belt is running, drive rollers and bend rollers and idlers in an abnormal when abnormal noise, abnormal noise can be determined according to equipment failure.



3.1 eccentric roller severe noise



Belt conveyor idlers run often occurs when abnormal noise, accompanied by periodic vibrations. Especially the return roller, because greater length, since the major noise is

relatively large. Noise occurs for two main reasons why. First, the manufacturing of seamless steel pipe wall thickness of roller uneven production

Students larger centrifugal force. The second is in the processing center and the outer ends of the bearing hole circle center deviation is large, so that the centrifugal force

is too large.



3.2 Coupling two different mind-axis noise



High end of the drive unit between motor and reducer coupling or coupling with brake wheel issued by the abnormal noise, which has been associated with the same frequency as the

motor rolling vibration. This noise should occur in a timely manner the position of the motor reducer to be adjusted to avoid deceleration

Input shaft fracture.



3.3 Idler pulleys and drive roller unusual noise



Idler pulleys and drive roller normal operation noise is small, generally occurs when abnormal noise bearing damage, bearing at the gurgling sound, this time to replace the

bearings.