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Tilting preventing device connecting clamp seat for hydraulic supports

A technology of hydraulic support and connecting card, which is applied in the direction of mine roof support, mining equipment, earth square drilling and mining, etc. It can solve the problems of inconvenient installation and operation, easy bending and cutting, uneconomical and practical, etc., and achieves convenient installation and disassembly, Simple structure and low manufacturing cost

Pending Publication Date: 2020-05-08
CHINA COAL BEIJING COAL MINING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The connection form is complicated, and it needs to be used in conjunction with the hanging shaft and the connecting head, which is neither economical nor practical, nor is it convenient to install and operate underground;
[0007] In order to meet the requirements of the lowering-moving-raising action of the bracket, the cantilever of the hanging shaft in the anti-falling device is required to have a certain length, which is easy to bend and cut when in use, and the hanging shaft is frequently replaced

Method used

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  • Tilting preventing device connecting clamp seat for hydraulic supports
  • Tilting preventing device connecting clamp seat for hydraulic supports
  • Tilting preventing device connecting clamp seat for hydraulic supports

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0020] The hydraulic support of the present invention is connected to the deck with an anti-fall device, and its preferred specific implementation is:

[0021] Including the card seat fixed under the top beam, the two ends of the anti-fall jack are respectively connected with circular chains, the circular chain at one end is connected with the lower end of the card seat of this frame, and the circular chain at the other end is connected with the lower end of the card seat of the adjacent frame. connected.

[0022] There are two holes for fixing the deck on the web of the top beam. When installing, extend the baffle plate on the deck into the inside of the beam body of the roof beam through the holes, rotate 90°, and then clamp it on the beam body. The deck is fixed, and the circular link chain is connected with the lower end of the deck through another bearing pin.

[0023] The length of the circular link chain can be adjusted.

[0024] The hydraulic support of the present i...

specific Embodiment

[0026] Such as figure 2 , image 3 , Figure 4a , Figure 4b As shown, the connection form of the anti-falling device with a card seat is to use a card seat instead of a hanging shaft. There is no need to reserve a welding anti-falling cylinder on the top beam, but to open two holes for fixing the card seat on the web of the top beam. The card seat is a simple assembly weldment. When installing, the baffle plate on the card seat is inserted into the beam body through the hole, and it is stuck on the beam body after rotating 90°, and the card seat is fixed by the pin shaft. The two ends of the anti-falling jack are connected to the chain card, and the ring chain is connected to the lower end of the card seat through the pin shaft, so as to connect the two adjacent top beams in the working surface together, so as to prevent the support from tilting and toppling.

[0027] Beneficial effects of the present invention:

[0028] ① Strong applicability, the anti-falling device of...

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Abstract

The invention discloses a tilting preventing device connecting clamp seat for hydraulic supports. The connecting clamp seat comprises clamp seats fixed under top beams, circular chains are connected to two ends of a tilting preventing jack respectively, the circular chain at one end is connected with the lower end of the clamp seat of the support, and the circular chain at the other end is connected with the lower end of the clamp seat of the adjacent support. Two holes for fixing the clamp seats are formed in web plates of the top beams. During installation, baffles on the clamp seats extendinto bodies of the top beams via holes and are clamped on the bodies after rotating by 90 degrees; the clamp seats are fixed by hinge pins, and the circular chains are connected to the lower end of the clamp seats by the other hinge pins. The connecting clamp seat has simple structural form and low manufacture cost, is convenient to install and uninstall, safe and reliable, ensures safety of operators, and solves the problem of management difficulty of top plates due to tilting, slide and deviation of the supports.

Description

technical field [0001] The invention relates to a hydraulic support of a fully mechanized mining face in a coal mine, in particular to an anti-falling device connection card seat for a hydraulic support. Background technique [0002] The stability of the hydraulic support in the fully mechanized mining face plays a vital role in the high-yield, high-efficiency, safety and reliability of coal mining. When the coal seam of the working face has an inclination angle, the hydraulic support will make the support tilt along the The surface slides, and the larger the inclination angle, the more serious the slide. Tilting, tilting, sliding, and offsetting of the support will bring great trouble to roof management. According to the specification for the design of hydraulic supports, when the inclination angle of the coal seam is greater than 15°, the hydraulic support shall be equipped with an anti-falling device, and the support of the working face shall be equipped with an anti-ski...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/00E21D23/04
CPCE21D23/0004E21D23/0418
Inventor 姜伟陈井龙王杰李然甄亚东
Owner CHINA COAL BEIJING COAL MINING MACHINERY
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