CN208184756U - The big working resistance double-telescopic upright post of hydraulic support - Google Patents
The big working resistance double-telescopic upright post of hydraulic support Download PDFInfo
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- CN208184756U CN208184756U CN201820669968.7U CN201820669968U CN208184756U CN 208184756 U CN208184756 U CN 208184756U CN 201820669968 U CN201820669968 U CN 201820669968U CN 208184756 U CN208184756 U CN 208184756U
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Abstract
The utility model discloses a kind of big working resistance double-telescopic upright posts of hydraulic support, including level-one cylinder body, sliding sleeve is sealed loaded on the intracorporal second level cylinder body of first-stage cylinder by the way that the first guide sleeve at level-one cylinder body cylinder mouth is arranged in, sliding sleeve is sealed equipped with hollow portable pillar by the way that the second guide sleeve at its cylinder mouth is arranged in secondary cylinder body, and second level cylinder body bottom wall is equipped with the hydraulic control valve of connection level-one cylinder body cavity of resorption；The internal diameter of level-one cylinder body is 600mm, and the outer diameter of level-one cylinder body is 706mm；The internal diameter of second level cylinder body is 450mm, and the outer diameter of second level cylinder body is 560mm；The upper and lower chamber ratio of first-stage cylinder is 7.76, and the upper and lower chamber ratio of secondary cylinder is 7.76.The utility model can be while meeting itself integral strength, and rising and falling time short requirement when meeting telescopic column work to greatest extent meets requirement of the hydraulic moving stand time no more than 8s, working resistance is up to 13000KN.
Description
Technical field
The utility model relates to mine hydraulic brackets, more particularly, to the big working resistance double-telescopic upright post of hydraulic support.
Background technique
With the continuous improvement of down-hole mechanical extracting level, to the intensity, height, safety etc. of hydraulic shield support
It is required that higher and higher.Therefore, having the hydraulic support that yield load is big, supporting height and intensity are high is those skilled in the art
The project that member studies always.
Summary of the invention
The utility model aim is to provide a kind of big working resistance double-telescopic upright post of hydraulic support.
To achieve the above object, the utility model takes following technical proposals:
The big working resistance double-telescopic upright post of hydraulic support described in the utility model, including level-one cylinder body, pass through setting
The first guide sleeve sealing sliding sleeve at the level-one cylinder body cylinder mouth is loaded on the intracorporal second level cylinder body of first-stage cylinder, the secondary cylinder
Sliding sleeve is sealed equipped with hollow portable pillar by the way that the second guide sleeve at its cylinder mouth is arranged in vivo, and second level cylinder body bottom wall, which is equipped with, to be connected
The hydraulic control valve of logical level-one cylinder body cavity of resorption；The internal diameter of level-one cylinder body is 600mm, and the outer diameter of level-one cylinder body is 706mm；Second level
The internal diameter of cylinder body is 450mm, and the outer diameter of second level cylinder body is 560mm；The upper and lower chamber ratio of first-stage cylinder is 7.76, secondary cylinder
Upper and lower chamber ratio is 7.76.
The utility model can be while meeting itself integral strength, when meeting telescopic column work to greatest extent
The short requirement of rising and falling time, the upper and lower chamber ratio of first-stage cylinder are 7.76, and the upper and lower chamber ratio of secondary cylinder also selects 7.76, because
This back pressure under 31.5MPa operating pressure is 4.06MP, is no more than so that the drop column of telescopic column and setting prop total time add up to
3.8s meets requirement of the hydraulic moving stand time no more than 8s, and working resistance is up to 13000KN.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention, the present embodiment before being with technical solution of the present invention
It puts and is implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Figure 1, the big working resistance double-telescopic upright post of hydraulic support described in the utility model, including level-one cylinder body
1, the second level cylinder body 3 that sliding sleeve is loaded in level-one cylinder body 1 is sealed by the way that the first guide sleeve 5 at 1 cylinder mouth of level-one cylinder body is arranged in,
Sliding sleeve is sealed equipped with hollow portable pillar 4, second level cylinder body 3 by the way that the second guide sleeve 6 at its cylinder mouth is arranged in second level cylinder body 3
Bottom wall is equipped with the hydraulic control valve 2 of connection 1 cavity of resorption of level-one cylinder body；The internal diameter of level-one cylinder body 1 is 600mm, level-one cylinder body 1 it is outer
Diameter is 706mm；The internal diameter of second level cylinder body 3 is 450mm, and the outer diameter of second level cylinder body 3 is 560mm；The upper and lower chamber ratio of first-stage cylinder 1
It is 7.76, the upper and lower chamber ratio of secondary cylinder 3 is 7.76.
Utility model works principle is summarized as follows:
1, setting prop: emulsion enters the cavity of resorption of double-telescopic upright post level-one cylinder body 1 by the valve seat 7 on 1 outer wall of level-one cylinder body,
Push second level cylinder body 3 that hollow portable pillar 4 is driven to rise together；The stopping when second level cylinder body 3 is raised to extreme higher position, at this time secondary cylinder
The hydraulic control valve 2 of 3 bottom wall of body is opened, and emulsion enters 3 cavity of resorption of second level cylinder body, pushes hollow portable pillar 4 to rise, hollow activity
Column 4 is raised to extreme higher position stopping, and entire telescopic column uphill process terminates.
2, drop column: emulsion enters the epicoele of telescopic column level-one cylinder body 1 by the interface 8 on 1 outer wall of level-one cylinder body, and one
The cavity of resorption of grade cylinder body 1 returns liquid by valve seat 7, and the hydraulic control valve 2 of 3 bottom wall of second level cylinder body is in close state at this time, emulsion
Push second level cylinder body 3 that hollow portable pillar 4 is driven to decline, hydraulic control valve 2 is opened when second level cylinder body 3 is down to most bottom position, emulsification
Liquid pushes hollow portable pillar 4 to decline, and entire telescopic column drop column process terminates.
Claims (1)
1. a kind of big working resistance double-telescopic upright post of hydraulic support, including level-one cylinder body, by being arranged in the level-one cylinder body
The first guide sleeve sealing sliding sleeve at cylinder mouth is loaded on the intracorporal second level cylinder body of first-stage cylinder, is existed in the secondary cylinder body by setting
The second guide sleeve sealing sliding sleeve at its cylinder mouth is equipped with hollow portable pillar, and second level cylinder body bottom wall is equipped with connection level-one cylinder body cavity of resorption
Hydraulic control valve；It is characterized by: the internal diameter of level-one cylinder body is 600mm, the outer diameter of level-one cylinder body is 706mm；Second level cylinder body
Internal diameter be 450mm, the outer diameter of second level cylinder body is 560mm；The upper and lower chamber ratio of first-stage cylinder be 7.76, secondary cylinder it is upper and lower
Chamber ratio is 7.76.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820669968.7U CN208184756U (en) | 2018-05-07 | 2018-05-07 | The big working resistance double-telescopic upright post of hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820669968.7U CN208184756U (en) | 2018-05-07 | 2018-05-07 | The big working resistance double-telescopic upright post of hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208184756U true CN208184756U (en) | 2018-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820669968.7U Active CN208184756U (en) | 2018-05-07 | 2018-05-07 | The big working resistance double-telescopic upright post of hydraulic support |
Country Status (1)
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| CN (1) | CN208184756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707678A (en) * | 2018-12-28 | 2019-05-03 | 北京天地玛珂电液控制***有限公司 | Pressurized cylinder, hydraulic shock test macro and method |
-
2018
- 2018-05-07 CN CN201820669968.7U patent/CN208184756U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707678A (en) * | 2018-12-28 | 2019-05-03 | 北京天地玛珂电液控制***有限公司 | Pressurized cylinder, hydraulic shock test macro and method |
| CN109707678B (en) * | 2018-12-28 | 2020-12-11 | 北京天地玛珂电液控制***有限公司 | Pressure cylinder, hydraulic impact testing system and method |
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