Board chain bucket elevator backstop
Board chain bucket elevator, conveyor chains for the bush roller chain, induced gravity unloading, for a variety of powder, bulk material particles vertical lifting. Widely used
in coal preparation gangue, coal, washed coal transportation, dehydration, dehydration is indispensable transport equipment. It has many
1. Enhance a wide range
Such hoist types of materials, characteristics and requirements of the degree block less; enhance powder, granular and bulk materials; enhance the abrasive material; may elevate
temperature <250 degrees high temperature materials.
2 large transmission capacity, low energy consumption
Such improved machine into the feeder, gravity induction discharge, and the use of intensive large-capacity hopper conveyor arrangement, low-speed chain to enhance the capacity,
almost no recycled materials and, therefore, drive power is small.
3 high lifting height
Such low-speed chain hoist, smooth operation, and the use of high-strength wear-resistant chain plate chain, so up to a higher lifting height.
Good sealing, reliable operation, less environmental pollution.
4 Easy to operate
Less maintenance, less wearing parts.
5 small mechanical dimensions
The amount of boost with the same other types of hoist, this type of mechanical hoist smaller. Metal detector for food
First, the problems
Heavy duty bucket elevators in operation, and sometimes there will inevitably be heavy due to failure stop, or even cut insurance sales, then it will cause a reverse run of the
phenomenon (commonly known as "Fanzuo"). Fanzuo scoop bucket and the bottom will not put away the material between the collision, can easily result in improved
Machine scoop bucket deformation, serious damage can not make use of bucket scoops.
Two, cause analysis
Bucket elevator in normal operation, the upper scoop bucket is filled with material from the lower run up over the top of the nose after relieved materials. When heavy parking
phenomenon, under the action of gravity, spoon full of material bucket will run down the speed from slow gradually accelerate, and to fight with spoon
No special protection against reverse running is caused by Fanzuo accident. Manufacturers design and manufacture of equipment considered only in the empty load condition device
does not reverse, because of the lower than the upper bucket scoops two more, that is heavier than the top. But taking into account the heavy load on
Bucket filled with material layer spoon after spoon lower than the heavy fighting in the state park on the easy formation of heavy-duty bucket elevator Fanzuo. This is a design
Third, the development of backstop Automatic Sorting Machine
Spoon and plate chain bucket tightly together, and with the movement of the moving plate chain. Plate chain roller chain plate through the sleeve of a one linked together, from
beginning wheel drive, with the scoop bucket upward from low to achieve the purpose of transportation of materials. Backstop backstop device consists of rod, shaft, return
Pin and other components. When lifting the machine during normal operation, check the sleeve carom upward swing lever is in the return spring to the whereabouts of the elastic
force, has been under a sleeve carom upward swing, and so does not affect the normal operation of equipment ; reverse occurs if the hoist operation, locating pin
The backstop lever block, it is no longer downward swing, and turn the sleeve backstop lever block the entire bucket chain can not reverse operation. Bucket elevator early
reverse running within a few seconds, the initial speed is very slow, so the backstop pole blocking sleeve to the impact force is not large.
The device is designed to be simple and practical, easy production, low cost, not only for the board chain bucket elevators, and can used in a variety of similar equipment
protection does not allow reverse operation, easy to promote.