SU810961A1 - Device for moving coal cutter-loaders - Google Patents

Description

The invention relates to equipment for the mechanization of the excavation of minerals, in particular, to coal combines.

A device for moving COAL combines is known, which includes a built-in feeder, sprockets of which interact with the working branch of the pulling chain, bypass blocks mounted on brackets and bending around the pulling chain, and tensioning device 1.

A disadvantage of the known device is the inability to change the speed of the combine, which reduces its productivity.

The aim of the invention is to eliminate these drawbacks.

This goal is achieved by the fact that a locking mechanism is fixed on the combine, and on bypass blocks there are single-acting locks that interact with the pull chain, which is closed, and its single branch is passed through the locking mechanism.

The drawing shows a diagram of the device for moving coal combines.

The device contains a built-in feeder 1 with sprockets 2, bypass blocks 3, tensioning device 4, single-acting locks 5 and b.

the locking mechanism 7 and the traction chain 8.

T gova chain 8 is closed and

rounding the sprockets 2 feed mechanism 1 and

bypass blocks 3 and passed through the locks

unilateral action 5 and 6, mounted on the bypass blocks 3, and the locking mechanism 7 mounted on the combine.

For tensioning the chain 8, serves as a jack of the tension device 4.

Locks 5 and 6 can be made in the form of self-locking cams of the appropriate configuration, which slide along the chain of LPCs and move it in one direction and rest against chain links.

when moving it in the opposite direction. These same locks can also be made in the form of a ratchet mechanism, which allows the blocks 3 to rotate in one direction and stop while rotating in

opposite direction.

The locking mechanism 7, mounted on the combine, can be made in the form of a conventional stream, inside which or at the exit of it the chain can stop

cam-type mechanism or a simple stopper.

The operation of the device is as follows.

For the ability of the combine to work

 supplying the same chain in both directions, locks 5 and b are set to the working position, and the locking mechanism 7 is opened, releasing the pull chain.

In this case, the traction chain 8 is fixed at the ends of the lava, since the lock 6 does not allow the chains to run in the upper unit 3 when the combine moves upwards, and the lock 5 does not allow the chains to run in the lower unit when the combine moves downwards. The combine is moved by driving the drive sprockets 2 along the working branch of the traction chain 8. The single branch of the chain slides freely through the locking mechanism 7.

In order to allow the combine to operate in a feed mode using a polyspast system, locks 5 and 6 are moved out of the working position in both directions, and the traction chain is fixed by a stopper mechanism 7.

Since the idle branch of the chain 8 is closed by the mechanism 7 on the body of the combine and the chain as a whole can run in blocks 3, the tractive forces developed by the drive sprockets 2 in the working branch of the chain are transmitted through block 3 and the idle branch of the chain to the combine. The combine feed system operates according to a polyspath pattern.

In order to allow the combine to work upward through the polyspast system, and down in the single-feed mode, lock 5 is set to the working position, and lock 6 is taken out of the working position. When the combine moves upward the tread chain 8 by the mechanism 7 closes onto the body of the combine. In this case, the traction chain rolls freely along the upper block 3, since lock 6 is removed from the working position, and along the lower block, because lock 5 passes the chain in this direction, and the feed mechanism operates along the polyspast line.

pattern. When the combine moves down, the locking mechanism 7 is unlocked, releasing the chain. In this case, the chain 8 on the lower block 3 is automatically locked by the lock 5 and does not have the ability to run around the block in the direction of the driving force. The harvester is driven by driving sprockets along a working branch of the chain.

Installing the locks on the bypass blocks and on the combine will allow, without a significant investment of time, to transfer the feeding system from the single-circuit mode to the polyspast system and thereby ensure increased traction during the coal-mining combine and, when idle, the combine drop angles - increased feed rate.

Claims (1)

1. USSR author's certificate No. 407047, cl. E 21C 29/00, 01/31/72.