Height-adjustable coal cutter supporting assembly

A technology for supporting components and shearers, which is applied to slitting machinery, earth-moving drilling, propulsion, etc., can solve the problems of decreased coal loading capacity and increased abnormal wear of guide sliding shoes, so as to improve service life and improve coal loading capacity. , the effect of eliminating the influence

Pending Publication Date: 2020-02-07
SHANGHAI BRANCH TIANDI SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The loss of support components will cause the shearer to form an inclined arrangement structure on the working face. On the one hand, the abnormal wear of the guide shoe will be further increased. On the other hand, the inclined arrangement will cause the shearer to form an undercut mining on the working face, and the coal loading capacity will decrease.

Method used

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  • Height-adjustable coal cutter supporting assembly
  • Height-adjustable coal cutter supporting assembly
  • Height-adjustable coal cutter supporting assembly

Examples

Experimental program
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Example Embodiment

[0022] The invention discloses a shearer support assembly (referred to as the support assembly) with adjustable height, such as Figure 1-3 As shown, it includes a sliding shoe 10, a support base assembly and a leg assembly. The lower part of the leg assembly is hinged with the sliding shoe through a pin 9 and the lower part of the support base assembly is inserted into the leg assembly. An up-and-down cylinder structure is formed in the upper groove. The height of the support assembly can be changed by adjusting the amount of expansion and contraction of the oil cylinder structure. When the shoe wears a lot, as long as the oil cylinder structure is adjusted to extend the corresponding height according to the measured value of the wear amount of the shoe, the height of the support assembly can be maintained and the height of the support assembly when the shoe is not worn The height is flat, so the shearer can maintain parallel coal mining, prolong the use time of the sliding shoe

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PUM

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Abstract

The invention relates to a height-adjustable coal cutter supporting assembly. The height-adjustable coal cutter supporting assembly includes a sliding shoe, a supporting seat, a piston, a supporting leg, a guide sleeve and a two-way hydraulic control check valve. The lower part of the supporting leg is hinged to the sliding shoe, and an upper section rectangular groove and a section lower circulargroove are formed in the supporting leg. The guide sleeve is in threaded connection with the upper part in the circular grooves. The middle part and the lower part of the supporting seat are made into a rod-shaped structure with a rectangular cross section and a rod-shaped structure with a circular cross section separately. The piston is in threaded connection with the lower part of the rod-shaped structure with the circular cross section in a sleeving mode, the piston is in sliding fit with the circular grooves in a space which is in the circular grooves and below the guide sleeve to form acylinder structure, and two cavities above and below the piston are connected with two oil outlets of the two-way hydraulic control check valve through two oil holes in the supporting seat separately.The height-adjustable coal cutter supporting assembly is long in service life, can improve the coal loading capacity of a coal cutter in a prone mining state, can absorb part of the vibration of thecoal cutter, and prolong the service life of a roller of the coal cutter.

Description

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Claims

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Application Information

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Owner SHANGHAI BRANCH TIANDI SCI&TECH CO LTD
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