Pilot-operated type endless rope winch for coal mines

Abstract

The invention relates to a pilot-operated type endless rope winch for coal mines, which belongs to the technical field of endless rope winch structures. The winch comprises a motor used for providing motive power for the winch; the motor is connected with an epicyclic gearing device in a transmission manner; the epicyclic gearing device is provided with a speed brake use for forming zero speed, low speed and high speed, and is connected with a reducer in a transmission manner; the reducer is connected with a friction wheel device in a transmission manner; and the friction wheel device adopts a single friction roller, is used for realizing that the winch leads ropes out in two way and has reliable and constant tensile force and driving force in the forward and reverse directions, and is provided with a safety valve which adopts a normally closed type elastic safety valve and a hydraulic brake. The invention has the advantages of reasonable structural design, high speed, high safety andstrong stability.

Description

technical field [0001] The invention relates to a liquid-controlled endless rope winch for coal mines, and belongs to the technical field of endless rope winch structures. Background technique [0002] At present, the structure of the existing endless rope winch used in coal mines is mainly divided into two types. One is to connect the two-speed reduction box through the motor, and directly adjust and change the speed through the reduction box. This method has higher requirements on the performance of the reduction box. It is easy to be damaged, which takes up space and increases the cost. At the same time, it is cumbersome to operate. It needs to be stopped for speed regulation, which reduces work efficiency and increases labor intensity. The other is to connect the planetary gear system through the motor for speed regulation and speed change. , This method takes up a lot of space and requires a large-section winch chamber. When carrying heavy vehicles and going uphill at t...

AI Technical Summary

Problems solved by technology

[0002] At present, the structure of the existing endless rope winch used in coal mines is mainly divided into two types. One is to connect the two-speed reduction box through the motor, and directly adjust and change the speed through the reduction box. This method has higher requirements on the performance of the reduction box. It is easy to be damaged, which takes up space and increases the cost. At the same time, it is cumbersome to operate. It needs to be stopped for speed regulation, which reduces work efficiency and increases labor intensity. The other is to connect the planetary gear system through the motor for speed regulation and speed change. , this method takes up a lot of space and requires a large-section winch chamber. When carrying heavy vehicles and going uphill at the same time, the planetary gear is directly used to carry the load, which will cause great damage to the planetary gear.

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