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Hydraulic bracket and outer bottom adjusting mechanism of hydraulic bracket

A technology of hydraulic support and bottom adjustment, which is applied in the direction of pillars/supports, mining equipment, earthwork drilling and mining, etc. It can solve the problems of inability to disassemble and damage to the bottom adjustment jack, and achieve the effect of easy replacement and maintenance

Inactive Publication Date: 2013-02-27
CHINA COAL BEIJING COAL MINING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the compact arrangement of the downhole hydraulic supports, once the bottom adjustment jack is damaged, it cannot be removed for maintenance, and under the existing technology and conditions, damage to the bottom adjustment jack occurs from time to time

Method used

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  • Hydraulic bracket and outer bottom adjusting mechanism of hydraulic bracket
  • Hydraulic bracket and outer bottom adjusting mechanism of hydraulic bracket
  • Hydraulic bracket and outer bottom adjusting mechanism of hydraulic bracket

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0026] The hydraulic support of the present invention, its preferred embodiment is:

[0027] The support is provided with the above-mentioned hydraulic support outer bottom adjusting mechanism.

specific Embodiment

[0028] like Figure 1a , 1b As shown, the bottom adjustment single rod 2 is directly cut from the steel plate, and the thickness of the selected steel plate is consistent with the "flat" thickness of the bottom adjustment jack piston rod (if it is not consistent, it is also possible, but it must be on the bottom adjustment double rod. Welding the plate to adjust the thickness), the two ends of the single pole of the bottom adjustment are opened, and the two holes are arranged eccentrically.

[0029] like Figure 2a , 2b As shown, the bottom adjustment double rod 3 is welded by the ear plate 5 (quantity 2 pieces) and the splint 6. Except for the thin thickness of the ear plate 5, other dimensions are consistent with the bottom adjustment single rod (Figure 1). The span between the two ear plates 5 (that is, the thickness of the splint 2) should ensure that the bottom adjustment single rod and the piston rod of the bottom adjustment jack can be properly installed in it.

[00...

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Abstract

The invention discloses an outer bottom adjusting mechanism of a hydraulic bracket, and the hydraulic bracket employing the outer bottom adjusting mechanism. The outer bottom adjusting mechanism comprises a base, a bottom adjusting single rod, a bottom adjusting double rod, and a bottom adjusting jack, wherein a cylinder body of the bottom adjusting jack is fixed outside the base; a piston rod of the bottom adjusting lifting jack is articulated with one end of the bottom adjusting double rod; one end of the bottom adjusting single rod is articulated with the base; and the other end of the bottom adjusting double rod is articulated with the other end of the bottom adjusting single rod. The whole bottom adjusting mechanism is located outside the base of the bracket, and is convenient to replace and maintain when the bottom adjusting mechanism is damaged in a pit in the use process.

Description

technical field [0001] The invention emphatically relates to an outer bottom adjustment mechanism of a hydraulic support and a hydraulic support using the outer bottom adjustment mechanism. Background technique [0002] In the process of pulling the frame, the hydraulic support often deflects, especially when the working surface has a certain inclination, the deflection phenomenon is more serious. In the prior art, a bottom adjustment jack is arranged inside the support base, and when the support deflects, the bottom adjustment jack stretches out, and pushes against the adjacent frame base to adjust the deviation of its own support. However, due to the compact arrangement of the downhole hydraulic supports, once the bottom adjustment jack is damaged, it cannot be removed for maintenance, and under the existing technology and conditions, the phenomenon of bottom adjustment jack damage occurs from time to time. Contents of the invention [0003] The object of the present in...

Claims

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Application Information

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IPC IPC(8): E21D15/54
Inventor 贾一
Owner CHINA COAL BEIJING COAL MINING MACHINERY
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