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Chain blocking device for tensioning plowing chain of coal plough

A technology for coal plows and planing chains, which is applied to slitting machinery, earth-moving drilling and mining, etc., can solve problems such as difficulty in preloading the plow chains, and achieve the effects of reducing installation and maintenance time, simple and safe operation, and high work efficiency.

Active Publication Date: 2013-08-07
SANY HEAVY EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of difficulty in pre-tensioning the plow chain, the object of the present invention is to provide a chain stopper for plow chain tightening, which can achieve the purpose of plow chain tensioning very reliably and efficiently

Method used

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  • Chain blocking device for tensioning plowing chain of coal plough
  • Chain blocking device for tensioning plowing chain of coal plough
  • Chain blocking device for tensioning plowing chain of coal plough

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Embodiment Construction

[0019] Such as Figure 1-3 As shown, the structure of the chain blocker of the present invention mainly includes: a coupling head 5, a block body 6 and a cotter pin, the block body 6 and the coupling head 5 are connected by a cotter pin, and the block body 6 and the coupling head 5 rotate mutually , but cannot be separated, so that the block body can adapt to the deflection of the planer chain.

[0020] In the present invention, there is a block body hole 11 on the side of one end of the block body 6 connected to the coupling head 5, and an annular groove 10 is opened on the cylindrical surface connected between the coupling head 5 and the block body 6, and two sets of cotter pins penetrate into the block body. In the block hole 11 and the annular groove 10 on the cylindrical surface of the coupling head 5.

[0021] In the present invention, the cotter pin includes a cotter pin I 7 and a cotter pin II 8, the cotter pin II 8 is inserted into the cotter pin I 7, the function of...

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Abstract

The invention relates to the field of coal ploughs which are used for exploiting thin coal seams in a coal mine well, and in particular relates to a chain blocking device structure used for preventing the transmission of a plowing chain of a coal plough so as to tension the chain. The chain blocking device is provided with a coupling head, a clamping block body and a split pin, wherein the clamping block body is connected with the coupling head through the split pin, and the clamping block body and the coupling head are mutually rotated; before chain tension is performed, a handle on the clamping block body is operated so as to ensure the chain blocking device to rotate around a rotating shaft and cause the chain blocking device in a chain path to lock the plowing chain through a fork-shaped structure of the chain blocking device, and then a plowing chain tensioning system is started; the plowing chain moves slowly and starts to be tensioned; and when the plowing chain is in a pre-tensioning state, therefore the two joints of the plowing chain are connected together. The chain blocking device provided by the invention can be used for solving the difficulty in the plowing chain pre-tensioning, thereby reliably and efficiently achieving the purpose of plowing chain pre-tensioning.

Description

technical field [0001] The invention relates to the field of coal plows for thin coal seam mining in underground coal mines, in particular to a chain stopper structure for preventing the transmission of the plow chains of the coal plows so as to tighten the chains. Background technique [0002] During the working process of the coal plow, the plow head not only undertakes the work of cutting and dropping coal, but also undertakes the work of shoveling and loading coal, which plays a vital role in realizing the automation of the plowing unit. Due to reasons such as installation, maintenance, or broken chains during the operation of the plow, it is necessary to tension and connect the plow chains together, but the working space of the plow is very small, so it is very difficult to tension and connect the plow chains together. difficulty. Contents of the invention [0003] In order to solve the problem of difficulty in pre-tensioning the plow chain, the object of the present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C27/34
Inventor 贾柱杨海军马可白邵泽龙李强张松林
Owner SANY HEAVY EQUIP CO LTD
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