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Damping device with controllable hydraulic pressure

A damping device and hydraulic technology, applied in transportation and packaging, conveyors, earthwork drilling and mining, etc., can solve the problems of affecting the service life of conveyor belts and belt buckles, increasing equipment maintenance costs, and increasing wear and tear of conveyor belts and belt buckles , to achieve the effect of improving negative effects, avoiding wear and ensuring normal shutdown

Inactive Publication Date: 2013-07-24
CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional trough retractable belt conveyor damping device, because it is always in contact with the conveyor belt, increases the wear of the conveyor belt and belt buckle during operation, seriously affects the service life of the conveyor belt and belt buckle, and increases the Equipment maintenance cost

Method used

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  • Damping device with controllable hydraulic pressure
  • Damping device with controllable hydraulic pressure
  • Damping device with controllable hydraulic pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The hydraulic controllable damping device refers to: the hydraulic cylinder fixed on the foundation adjusts the height of the damping device by controlling the slack of the wire rope, so that it can control the damping force generated by the damping device.

[0013] Specific operation process:

[0014] When the trough retractable belt conveyor is in normal operation, it is not necessary to adjust the hydraulic cylinder 1, that is, to keep the wire rope 3 in a slack state, so that the damping plate assembly 5 is separated from the conveyor belt. When the machine stops, the hydraulic cylinder 1 is supplied with liquid by the pump station, the piston rod is lowered, and the steel wire rope 3 is tightened to make the damping plate assembly 5 rise, which is in close contact with the conveyor belt, and the damping force generated can offset the sliding force of the material, ensuring The normal shutdown of the conveyor also makes the life of the conveyor belt and belt buckle ...

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Abstract

The invention relates to the technical field of gateway stretchable belt conveyor braking devices used in coal mine, in particular to a device with controllable damping force. A damping device with controllable hydraulic pressure is used for a gateway stretchable belt conveyor under the coal mine and is applicable to the working condition of downward transportation with a large dip angle. The damping device with the controllable hydraulic pressure solves the braking problem of the downward transportation stretchable belt conveyor. The damping device with the controllable hydraulic pressure is structurally characterized in that a damping plate assembly is not fixed in the longitudinal direction, a pin and a long groove are used as a track, the tightness of a steel wire rope is controlled by a hydraulic cylinder to adjust the height of the damping plate assembly, namely the contact degree between the damping plate assembly and a conveyer belt is controlled, adjustment of the frictional resistance coefficient is achieved, negative problems caused by underworkings downward transportation with the large dip angle are solved, and negative effect of a traditional method is avoided. The damping device with the controllable hydraulic pressure has the advantages of being simple in structure, convenient to machine, low in cost, strong in adaptive capacity, reliable, and practical.

Description

technical field [0001] The invention relates to the technical field of a parallel-trough retractable belt conveyor braking device for coal mines, in particular to a device with adjustable damping force. It is used for down-trough retractable belt conveyors in coal mines, and is suitable for down-transportation conditions at large inclination angles to solve the braking problem of down-transportation telescopic belt conveyors. Background technique [0002] In the conventional damping device for retractable belt conveyors along the trough, the main structure of the frame body is a structural part welded by channel steel, which is installed on the beam in the middle of the idler frame by bolts, and the damping plate is fixed on the damping frame by bolts , the degree of contact between it and the conveyor belt is constant during operation. In order to make the damping force generated by it offset the sliding force of the material, the required quantity is large, and when the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G23/26E21F13/00
Inventor 沈建国翟志成吴迪
Owner CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY
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