CN108952787B - Hydraulic support upright post with internal circulation medium replacement function - Google Patents
Hydraulic support upright post with internal circulation medium replacement function Download PDFInfo
- Publication number
- CN108952787B CN108952787B CN201810749372.2A CN201810749372A CN108952787B CN 108952787 B CN108952787 B CN 108952787B CN 201810749372 A CN201810749372 A CN 201810749372A CN 108952787 B CN108952787 B CN 108952787B
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- Prior art keywords
- cylinder body
- hydraulic control
- communicated
- control valve
- valve
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- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/517—Extension elements
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a hydraulic support upright post with internal circulation medium replacement, which comprises a primary cylinder body, a secondary cylinder body hermetically and slidably sleeved in the primary cylinder body through a first guide sleeve, and a movable post hermetically and slidably sleeved in the secondary cylinder body through a second guide sleeve; a first valve seat and a second valve seat are arranged on the outer wall of the primary cylinder body, a valve port of the first valve seat is communicated with the lower cavity of the primary cylinder body, and a valve port of the second valve seat is communicated with the upper cavity of the primary cylinder body; the bottom wall of the secondary cylinder body is provided with a hydraulic control valve which is communicated with the lower cavity of the secondary cylinder body and the lower cavity of the primary cylinder body; the bottom of the movable column is provided with a hydraulic control valve, and a circulating medium flow passage and a hydraulic control flow passage of the hydraulic control valve are arranged in the movable column; the liquid inlet of the circulating medium runner is communicated with the liquid outlet of the hydraulic control valve, the hydraulic control port of the hydraulic control valve is communicated with the liquid outlet of the hydraulic control runner, and the liquid inlet of the hydraulic control valve is communicated with the lower cavity of the secondary cylinder body. The invention aims to realize the automatic replacement of liquid by the hydraulic support upright post without influencing the normal work of the hydraulic support.
Description
Technical Field
The invention relates to a hydraulic support telescopic upright column, in particular to a hydraulic support upright column with internal circulation medium replacement.
Background
At present, a hydraulic support upright column used in coal mining is made of alloy materials such as iron and steel, and because the underground environment of a coal mine is severe and the working surface humidity is high, a large amount of corrosive substances are easily generated by combining with underground corrosive gas, and underground equipment works in a humid and easily corroded environment for a long time. Meanwhile, if the stand column does not act frequently or even for a long time, the liquid medium in the stand column is in a closed state for a long time and cannot flow and be updated, so that the liquid medium microorganisms are bred and deteriorated, the corrosion to metal is accelerated, the service life of the stand column of the hydraulic support is seriously influenced, and meanwhile, great potential safety hazards are brought to underground safety production.
Disclosure of Invention
The invention aims to provide a hydraulic support upright post with internal circulation medium replacement.
In order to achieve the purpose, the invention adopts the following technical scheme:
the hydraulic support upright post with internal circulation medium replacement comprises a primary cylinder body, and a secondary cylinder body which is hermetically and slidably sleeved in the primary cylinder body through a first guide sleeve arranged at a cylinder port of the primary cylinder body, wherein a movable post is hermetically and slidably sleeved in the secondary cylinder body through a second guide sleeve arranged at the cylinder port of the secondary cylinder body; the outer wall of the primary cylinder body is provided with a valve seat and a valve seat, a valve port of the valve seat is communicated with the lower cavity of the primary cylinder body, and a valve port of the valve seat is communicated with the upper cavity of the primary cylinder body; the bottom wall of the secondary cylinder body is provided with a hydraulic control valve which is communicated with the lower cavity of the secondary cylinder body and the lower cavity of the primary cylinder body; the bottom of the movable column is provided with a hydraulic control valve, and a circulating medium flow passage and a hydraulic control flow passage of the hydraulic control valve are arranged in the movable column; the liquid inlet of the circulating medium runner is communicated with the liquid outlet of the hydraulic control valve, the hydraulic control port of the hydraulic control valve is communicated with the liquid outlet of the hydraulic control runner, and the liquid inlet of the hydraulic control valve is communicated with the lower cavity of the secondary cylinder body.
The liquid outlet of the circulating medium flow passage and the liquid inlet of the liquid control flow passage are respectively arranged at the upper part of the movable column.
The invention has the advantage that the automatic liquid replacement of the hydraulic support upright post is realized without influencing the normal work of the hydraulic support. The fluidity of the hydraulic medium inside the upright post is greatly increased, the deterioration of the medium is reduced, the idea of no corrosion of running water is realized, the generation of corrosion is reduced, and the service life of the hydraulic support is prolonged. Meanwhile, the upright column does not need to be additionally provided with an external auxiliary mechanism.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the hydraulic support column with internal circulation medium replacement of the present invention comprises a primary cylinder body 1, a secondary cylinder body 3 hermetically and slidably sleeved in the primary cylinder body 1 through a first guide sleeve 2 arranged at a cylinder port of the primary cylinder body 1, and a movable column 5 hermetically and slidably sleeved in the secondary cylinder body 3 through a second guide sleeve 4 arranged at the cylinder port thereof; a first valve seat 12 and a second valve seat 13 are arranged on the outer wall of the primary cylinder body 1, a valve port of the first valve seat 12 is communicated with the lower cavity 10 of the primary cylinder body, and a valve port of the second valve seat 13 is communicated with the upper cavity of the primary cylinder body 1; the bottom wall of the secondary cylinder body 3 is provided with a hydraulic control valve 11 which is communicated with the lower cavity 9 of the secondary cylinder body and the lower cavity 10 of the primary cylinder body; the bottom of the movable column 5 is provided with a one-way hydraulic control valve 6, and a circulating medium flow passage 7 and a hydraulic control flow passage 8 of the one-way hydraulic control valve 6 are arranged in the movable column 5; a liquid inlet of the circulating medium flow passage 7 is communicated with a liquid outlet of the one-way hydraulic control valve 6, a hydraulic control port of the one-way hydraulic control valve 6 is communicated with a liquid outlet of the hydraulic control flow passage 8, and a liquid inlet of the one-way hydraulic control valve 6 is communicated with a lower cavity 9 of the secondary cylinder body; the liquid outlet 14 of the circulating medium channel 7 and the liquid inlet 15 of the hydraulic control channel 8 are respectively arranged at the upper part of the movable column 5.
The working principle of the invention is briefly described as follows:
firstly, lifting a column: a medium enters the lower cavity 10 of the primary cylinder body of the telescopic upright post through a first valve seat 12 on the outer wall of the primary cylinder body 1, and pushes the secondary cylinder body 3 to drive the movable post 5 to ascend together; when the secondary cylinder body 3 rises to the highest position, the hydraulic control valve 11 on the bottom wall of the secondary cylinder body 3 is opened, the emulsion enters the lower cavity 9 of the secondary cylinder body to push the movable column 5 to rise, the movable column 5 stops when rising to the highest position, and the rising process of the whole telescopic upright column is finished.
II, liquid changing: when a medium enters the first-stage cylinder body lower cavity 10 through the first valve seat 12 on the outer wall of the first-stage cylinder body 1, the medium enters the hydraulic control flow channel 8 through the liquid inlet 15 on the upper portion of the movable column 5 to push a hydraulic control port of the one-way hydraulic control valve 6 to open, the one-way hydraulic control valve 6 starts to work, the medium in the first-stage cylinder body lower cavity 10 enters the second-stage cylinder body lower cavity 9 through the hydraulic control valve 11, the medium in the second-stage cylinder body lower cavity 9 enters the circulating medium flow channel 7 inside the movable column 5 through the one-way hydraulic control valve 6, and the medium enters the hydraulic control system main pipeline of the hydraulic support through the liquid outlet 14 of the circulating medium.
Thirdly, column descending: the medium gets into the epicoele of one-level cylinder body 1 through second disk seat 13 on the one-level cylinder body 1 outer wall, and one-level cylinder body cavity 10 returns liquid, and the hydraulic control valve 11 of 3 diapalls of secondary cylinder body is in the closed condition this moment, and the medium promotes the decline of secondary cylinder body 3 drive movable column 5, and hydraulic control valve 11 is opened when secondary cylinder body 3 descends to the bottom position, and the medium promotes hollow movable column 5 and descends, and whole flexible stand falls the post process and finishes.
The hydraulic control valve 6 in the invention can be a one-way valve or a two-way valve, and the medium for driving the hydraulic support upright post to stretch can be emulsion or pure water.
Claims (1)
1. A hydraulic support upright post with internal circulation medium replacement comprises a primary cylinder body (1), and a secondary cylinder body (3) hermetically and slidably sleeved in the primary cylinder body (1) through a first guide sleeve (2) arranged at a cylinder port of the primary cylinder body (1), wherein a movable post (5) is hermetically and slidably sleeved in the secondary cylinder body (3) through a second guide sleeve (4) arranged at the cylinder port of the secondary cylinder body; a first valve seat (12) and a second valve seat (13) are arranged on the outer wall of the primary cylinder body (1), a valve port of the first valve seat (12) is communicated with a lower cavity (10) of the primary cylinder body, and a valve port of the second valve seat (13) is communicated with an upper cavity of the primary cylinder body (1); the bottom wall of the secondary cylinder body (3) is provided with a first hydraulic control valve (11) which is communicated with the lower cavity (9) of the secondary cylinder body and the lower cavity (10) of the primary cylinder body; the method is characterized in that: a second hydraulic control valve (6) is arranged at the bottom of the movable column (5), and a circulating medium flow passage (7) and a hydraulic control flow passage (8) of the second hydraulic control valve (6) are formed in the movable column (5); a liquid inlet of the circulating medium runner (7) is communicated with a liquid outlet of a second hydraulic control valve (6), a hydraulic control port of the second hydraulic control valve (6) is communicated with a liquid outlet of the hydraulic control runner (8), and a liquid inlet of the second hydraulic control valve (6) is communicated with a lower cavity (9) of the secondary cylinder body; the liquid outlet (14) of the circulating medium flow passage (7) and the liquid inlet (15) of the liquid control flow passage (8) are respectively arranged at the upper part of the movable column (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810749372.2A CN108952787B (en) | 2018-07-10 | 2018-07-10 | Hydraulic support upright post with internal circulation medium replacement function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810749372.2A CN108952787B (en) | 2018-07-10 | 2018-07-10 | Hydraulic support upright post with internal circulation medium replacement function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108952787A CN108952787A (en) | 2018-12-07 |
| CN108952787B true CN108952787B (en) | 2020-11-06 |
Family
ID=64482511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810749372.2A Active CN108952787B (en) | 2018-07-10 | 2018-07-10 | Hydraulic support upright post with internal circulation medium replacement function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108952787B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007007846U1 (en) * | 2007-06-01 | 2007-09-13 | Amd - Otto Hennlich Technology Gmbh | Valve cartridge for interchangeable arrangement in a valve block of a shield construction |
| CN202007674U (en) * | 2011-02-28 | 2011-10-12 | 中煤邯郸煤矿机械有限责任公司 | Integral sealing column |
| CN105041768A (en) * | 2015-08-27 | 2015-11-11 | 三一重型装备有限公司 | Mine hydraulic cylinder capable of achieving hydraulic medium replacement under pressure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943789B (en) * | 2012-11-09 | 2015-12-09 | 昆明中铁大型养路机械集团有限公司 | The buffering hydraulic cylinder of a kind of adjustable pressure and flow, controlling method and hydraulic system |
| CN105041362B (en) * | 2015-08-27 | 2018-01-19 | 三一重型装备有限公司 | Mining hydraulic medium displacement hydraulic support with pressure |
| CN205089351U (en) * | 2015-09-23 | 2016-03-16 | 山西平阳广日机电有限公司 | Hydraulic support stand enters go back to liquid system fast |
-
2018
- 2018-07-10 CN CN201810749372.2A patent/CN108952787B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007007846U1 (en) * | 2007-06-01 | 2007-09-13 | Amd - Otto Hennlich Technology Gmbh | Valve cartridge for interchangeable arrangement in a valve block of a shield construction |
| CN202007674U (en) * | 2011-02-28 | 2011-10-12 | 中煤邯郸煤矿机械有限责任公司 | Integral sealing column |
| CN105041768A (en) * | 2015-08-27 | 2015-11-11 | 三一重型装备有限公司 | Mine hydraulic cylinder capable of achieving hydraulic medium replacement under pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108952787A (en) | 2018-12-07 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20181207 Assignee: Zhengmei Zhiding Hydraulic Co.,Ltd. Assignor: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Contract record no.: X2023980036709 Denomination of invention: Hydraulic support column with internal circulation medium replacement Granted publication date: 20201106 License type: Exclusive License Record date: 20230620 |