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Double-telescoping stand column of hydraulic support

A hydraulic support, double-telescopic technology, applied in pillars/supports, mining equipment, earthwork drilling and mining, etc., to achieve energy saving, energy saving and emission reduction economic benefits, and improve work efficiency

Inactive Publication Date: 2014-09-17
大连宏远气动液压船舶辅机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The hydraulic support cylinder products of domestic hydraulic product manufacturers, without the cylinder column, the length can reach 8 meters, and the no-load stroke speed of the cylinder is not more than 200mm / min characteristic product

Method used

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  • Double-telescoping stand column of hydraulic support

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Embodiment Construction

[0010] The present invention is described further in conjunction with accompanying drawing. The double telescopic column of the hydraulic support is composed of a primary telescopic column and a secondary telescopic column. The primary telescopic column includes the first cylinder body 1, the second cylinder body 2, the built-in bottom valve 5, the guide ring 3, the precision seal 8, the oil Port a9, oil port b10, the built-in bottom valve 5 is installed on one side of the inner wall of the bottom end of the first cylinder body 1 and the outer wall of the bottom end of the second cylinder body 2, and the other side is equipped with a guide ring 3, and the static seal 8 is installed in the first cylinder body Between the inner wall of the front end of the body 1 and the outer wall of the front end of the second cylinder body 2, an oil port a9 is provided in the middle of the outer wall of the first cylinder body 1, and an oil port b10 is located at the front end of the outer wal...

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Abstract

A double-telescoping stand column of a hydraulic support is composed of a primary telescoping stand column and a secondary telescoping stand column. The primary telescoping stand column comprises a first cylinder block, a second cylinder block, a built-in bottom valve, a guide ring, a static seal, an oil hole a and an oil hole b, wherein the built-in bottom valve is arranged on one side of the inner wall of the bottom end of the first cylinder block and one side of the outer wall of the bottom end of the second cylinder block, and the guide ring is arranged on the other side of the inner wall of the bottom end of the first cylinder block and the other side of the outer wall of the bottom end of the second cylinder block; the static seal is arranged between the inner wall of the front end the first cylinder block and the outer wall of the front end of the second cylinder block; the oil hole a is formed in the middle of the outer wall of the first cylinder block; the oil hole b is formed in the front end of the outer wall of the first cylinder block; the secondary telescoping stand column comprises a second cylinder block, a piston column, a piston seal, a rod seal and an oil hole c, wherein the piston seal is arranged between the outer wall of the bottom end of the piston column and the inner wall of the bottom end of the second cylinder block; the rod seal is arranged between the front end of the inner wall of the second cylinder block and the front end of the outer wall of the piston column; the oil hole c is formed in the front end of the piston column. By applying the double-telescoping stand column of the hydraulic support, the product cost is reduced, energy saving aim is achieved, and the economic benefits of energy conservation and emissions reduction are achieved.

Description

technical field [0001] The invention belongs to the field of hydraulic supports, and in particular relates to a device with a double telescopic column structure of the hydraulic support. technical background [0002] At present, there are many domestic manufacturers of mine hydraulic support cylinder products, and their traditional mine hydraulic support cylinder products have a single and simple structure. [0003] The hydraulic support cylinder products of domestic hydraulic product manufacturers do not have a product structure of a control system for valves and cylinders. [0004] The hydraulic support cylinder products of domestic hydraulic product manufacturers can reach 8 meters in length without the cylinder column, and the no-load stroke speed of the cylinder is not more than 200mm / min. [0005] The hydraulic support cylinder products of domestic hydraulic product manufacturers do not have similar products with a minimum starting pressure of 0.35MPa and a maximum st...

Claims

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Application Information

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IPC IPC(8): E21D15/44E21D15/51
Inventor 邓喜礼唐秀岩
Owner 大连宏远气动液压船舶辅机有限公司
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