Bidirectional hydraulic jack

A two-way hydraulic, jack technology, applied in the direction of fluid pressure actuating devices, lifting devices, etc., can solve the problems of increasing mining difficulty and cost, environmental restrictions, inconvenience, etc.

Active Publication Date: 2015-05-13
巨隆液压设备(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the narrow mining space, the environment has certain restrictions, and the mining layer usually has a certain inclination
Therefore, in this case, it is very inconvenient to adopt a one-way jack to work, and it will increase mining difficulty and mining cost

Method used

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  • Bidirectional hydraulic jack

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Embodiment Construction

[0014] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of a two-way hydraulic jack proposed by the present invention.

[0015] refer to figure 1 , a two-way hydraulic jack proposed by the present invention, comprising: a cylinder 1, a first piston 2, a second piston 3, a first piston rod 4, a second piston rod 5, a first guide sleeve 6, a second guide sleeve 7 ;

[0016] The inside of the cylinder 1 has a through cavity and openings at both ends. The side wall of the cylinder 1 is provided with a first through hole, a second through hole, a third through hole, a fourth through hole and a fifth through hole. The hole, the second through hole and the third through hole are sequentially arranged at intervals in the axial direction of the cylinder 1, the fourth through hole is located between the first through hole and the second through hole, and the fifth through hole is located between the second through hole and the second through hole. Between the...

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PUM

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Abstract

The invention discloses a bidirectional hydraulic jack. A through cavity is formed in a cylinder barrel. The two ends of the cylinder barrel are provided with a first guide sleeve and a second guide sleeve respectively. The side wall of the cylinder barrel is provided with a first connector base, a second connector base and a third connector base which are communicated with the through cavity. A first piston rod and a second piston rod are arranged in the cylinder barrel and stretch out of a middle opening in the first guide sleeve and a middle opening in the second guide sleeve respectively, a first piston and a second piston are arranged on the outer wall of the first piston rod and the outer all of the second piston rod respectively, the first piston is located between the first connector base and the second connector base in the cylinder barrel, the second piston is located between the second connector base and the third connector base, and sealing pieces are arranged between the pistons and the cylinder barrel and among the guide sleeves and the piston rods respectively. The hydraulic support top beam balance keeping device is compact in whole structure, reasonable in design, capable of achieving bidirectional hydraulic support, stable and reliable in structure in the repeated use process and high in mechanical accuracy.

Description

technical field [0001] The invention relates to the technical field of jacks, in particular to a two-way hydraulic jack. Background technique [0002] The side pusher jack is a commonly used supporting device in fully mechanized mining operations. In the working process of the existing jack, one end is fixed and the other end travels, so as to carry out one-way support and one-way movement. However, due to the narrow mining space, the environment has certain restrictions, and the mining layer usually has a certain inclination. Therefore, in this case, it is very inconvenient to adopt a one-way jack to work, and it increases mining difficulty and mining cost. Contents of the invention [0003] In order to solve the technical problems existing in the background technology, the present invention proposes a two-way hydraulic jack, which has a reasonable structural design, good integrity, and can realize two-way support. [0004] A two-way hydraulic jack proposed by the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F3/26B66F3/25F15B15/14
CPCB66F3/25B66F3/26F15B15/1409
Inventor 袁强国许洪山任乾坤周文瑛朱于刚
Owner 巨隆液压设备(集团)有限公司
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