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Hydraulic bracket and bottom lifting device thereof

A technology of hydraulic support and connecting device, which is applied to pillars/supports, mining equipment, earth-moving drilling, etc., can solve the problems of wasting the stroke of the piston rod of the jack, reducing the working efficiency of the jack, etc., and achieve the effect of improving the working efficiency.

Inactive Publication Date: 2015-04-29
SANY HEAVY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, part of the stroke of the jack piston rod

Method used

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  • Hydraulic bracket and bottom lifting device thereof
  • Hydraulic bracket and bottom lifting device thereof

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] see figure 2 , an embodiment of the present invention provides a bottom lifting device, which is arranged in a hydraulic support. The device for lifting the bottom includes a main rib plate, a bottom plate 2, a top plate, an ear plate 4, a fixed sleeve 5 and a jack 6. The bottom plate 2 and the top plate are fixed on the main rib plate, the ear plate 4 passes through the top plate and is connected with the bottom plate 2, the fixing sleeve 5 is connected t...

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Abstract

The invention discloses a hydraulic bracket and a bottom lifting device thereof. The bottom lifting device comprises a main rib plate, a bottom plate, a lug plate, a fixed sleeve and a lifting jack, wherein the bottom plate is fixed on the main rib plate; the lug plate is fixedly connected with the bottom plate; the fixed sleeve is connected onto the lug plate; the lifting jack is fixed in the fixed sleeve and penetrates through the bottom plate. According to the bottom lifting device disclosed by the invention, the lifting jack is fixedly connected onto a hydraulic bracket base, and therefore, protrusion of a piston rod of the lifting jack is greatly utilized, the hydraulic bracket is jacked to a relatively high position in a facilitated manner, and the working efficiency of the lifting jack is improved.

Description

technical field [0001] The invention relates to the technical field of hydraulic supports, in particular to a hydraulic support and a bottom lifting device thereof. Background technique [0002] The hydraulic support is the support equipment for the fully mechanized mining face of the coal mine. It uses hydraulic pressure as the power to realize movements such as lifting and moving forward. It can reliably and effectively support and control the roof of the working face, isolate the goaf, and prevent gangue from entering the mining face. And promote the conveyor, used in conjunction with the coal shearer, realize the comprehensive mechanization of coal mining, improve and enhance the efficiency of coal mining and transportation equipment, and maintain the safety of the working space. [0003] like figure 1 As shown, the bottom-lifting device of the existing hydraulic support includes a fixed plate 2' fixed on the bridge at the front of the support base, and a cylinder seat ...

Claims

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Application Information

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IPC IPC(8): E21D15/54
CPCE21D15/55
Inventor 韩相冬丁宇蒋卫卫
Owner SANY HEAVY EQUIP