CN203175582U - Hydraulic control annular cavity liquid-return low-resistance integrated valve set system - Google Patents
Hydraulic control annular cavity liquid-return low-resistance integrated valve set system Download PDFInfo
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- CN203175582U CN203175582U CN 201320112499 CN201320112499U CN203175582U CN 203175582 U CN203175582 U CN 203175582U CN 201320112499 CN201320112499 CN 201320112499 CN 201320112499 U CN201320112499 U CN 201320112499U CN 203175582 U CN203175582 U CN 203175582U
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Abstract
The utility model belongs to the technical field of coal mine shaft bottom hydraulic supports, and provides a hydraulic control annular cavity liquid-return low-resistance integrated valve set system which reduces oil return resistance and ensures effectiveness of a stand column. According to the technical scheme, the integrated valve set system comprises a valve base and a hydraulic control one-way valve, two cavities are arranged in the valve base in parallel, the hydraulic control one-way valve and an alternative one-way valve are arranged in the two cavities correspondingly, a first connector base and a second connector base are arranged on the two sides of the valve base respectively, and the first connector base and the second connector base are arranged on the valve base in a sealing mode. An oil inlet A is formed in the first connector base, an oil return port B is formed in the second connector base, a valve core is arranged in an oil duct between the first connector base and the second connector base in a sliding mode, the valve core is arranged in the oil duct in a sealing mode, a spring is arranged between the second connector base and the valve core, and a first oil-flowing port C is formed in the upper portion of the valve base and communicated with the middle of the oil duct. The hydraulic control annular cavity liquid-return low-resistance integrated valve set system is mainly used for an oil line system of a coal mine shaft bottom stand column oil cylinder.
Description
Technical field
The utility model hydraulic control ring cavity returns liquid low-resistance pile-up valve group system, belongs to hydraulic support technical field at the bottom of the coal mine.
Background technology
Along with the development of combining the cause of adopting, hydraulic support develops to big mining height, the column cylinder diameter also increases slightly thereupon, and plunger shaft and the post cavity area difference of living also strengthen, and it is thinner that (advancing) sol bore is returned in the post chamber of living in addition, when returning liquid, passes through liquid threeway again respectively, hydraulic control one-way valve, reversal valve, stop valve, return liquid cutout valve etc., form bigger sum total resistance; And big mining height hydraulic support work plane, most large-flow emulsion pumps that are equipped with, liquid-supplying system master feed tube is also thicker, and column plunger shaft liquid-supplying system sebific duct internal diameter and internal diameter of pipe joint are all thick than plunger shaft return liquid system sebific duct internal diameter, because above-mentioned factor, during the column setting prop, plunger shaft forms booster cavity, and the distortion in various degree of column cylinder notch portion is increased slightly, if when increasing thick value and surpassing the decrement of fairlead sealing ring, cause leakage, if produce permanent deformation, column lost efficacy.
The utility model content
The utility model hydraulic control ring cavity returns liquid low-resistance pile-up valve group system, has overcome the deficiency that prior art exists, and a kind of reduction oil return resistance is provided, and guarantees that the hydraulic control ring cavity that column did not lose efficacy returns liquid low-resistance pile-up valve group system.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: the hydraulic control ring cavity returns liquid low-resistance pile-up valve group system, comprise valve seat and hydraulic control one-way valve, be arranged with two cavitys in the valve seat in parallel, correspondence is provided with hydraulic control one-way valve and replaces one way valve in two described cavitys, the described alternately structure of one way valve is: first plinth and second plinth are separately positioned on the both sides of valve seat, and first plinth and second plinth and valve base sealing setting, first plinth is provided with oil-in A, second plinth is provided with oil return opening B, slide in the oil duct between first plinth and second plinth and be provided with spool, spool and described oil duct inner wall sealing arrange, be provided with spring between second plinth and the spool, the top of valve seat is provided with first-class hydraulic fluid port C, and first-class hydraulic fluid port C communicates with the middle part of described oil duct;
Oil duct between described first plinth and the spool is provided with oil outlet, described oil outlet is communicated with the stifled chamber of the end of hydraulic control one-way valve by the oily passage on the valve seat, the stifled end of hydraulic control one-way valve is by being bolted to an end of valve seat, the other end of valve seat is provided with port F, the bottom of valve seat is provided with oil-in D, oil-in D communicates with the oil inlet passage of hydraulic control one-way valve, and the big valve core of hydraulic control one-way valve is provided with the second oily head piece E, and described port F communicates with the second oily head piece E.
The auxiliary section of described first plinth and second plinth and valve seat is provided with sealing ring.
Described first-class hydraulic fluid port C is communicated with by first oil pipe with the epicoele of column oil cylinder, and the described second oily head piece E is communicated with by second oil pipe with the cavity of resorption of column oil cylinder, and described port F is connected with safety valve.
The beneficial effect that the utility model compared with prior art has is: the utility model will replace one way valve and hydraulic control one-way valve all is arranged in the valve seat, and first-class hydraulic fluid port C is communicated with by first oil pipe with the epicoele of column oil cylinder, the second oily head piece E is communicated with by second oil pipe with the cavity of resorption of column oil cylinder, when the column setting prop, hydraulic oil enters hydraulic control one-way valve from oil-in D, enter the cavity of resorption of column oil cylinder through the second oily head piece E, the fluid of column oil cylinder epicoele enters the alternately oil duct of one way valve through first-class hydraulic fluid port C, B flows back to fuel tank from oil return opening, the oil return path is short, and oil return is without reversal valve etc., reduced the oil return resistance, make oil return smooth and easy, guaranteed that column did not lose efficacy.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is structural representation of the present utility model.
Hydraulic circuit figure when Fig. 2 is the utility model setting prop.
Hydraulic circuit figure when Fig. 3 falls post for the utility model.
Among the figure, 1 for valve seat, 2 for hydraulic control one-way valve, 3 for one way valve, 4 alternately be that first plinth, 5 is that second plinth, 6 is sealing ring for stifled end, 10 for oily passage, 9 for spring, 8 for spool, 7.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the utility model hydraulic control ring cavity returns liquid low-resistance pile-up valve group system, comprise valve seat 1 and hydraulic control one-way valve 2, be arranged with two cavitys in the valve seat 1 in parallel, correspondence is provided with hydraulic control one-way valve 2 and replaces one way valve 3 in two described cavitys, the described alternately structure of one way valve 3 is: first plinth 4 and second plinth 5 are separately positioned on the both sides of valve seat 1, and first plinth 4 and second plinth 5 arrange with valve seat 1 sealing, first plinth 4 is provided with oil-in A, second plinth 5 is provided with oil return opening B, slide in the oil duct between first plinth 4 and second plinth 5 and be provided with spool 6, spool 6 arranges with described oil duct inner wall sealing, be provided with spring 7 between second plinth 5 and the spool 6, the top of valve seat 1 is provided with first-class hydraulic fluid port C, and first-class hydraulic fluid port C communicates with the middle part of described oil duct;
Oil duct between described first plinth 4 and the spool 6 is provided with oil outlet, described oil outlet is communicated with the stifled chamber of the end of hydraulic control one-way valve 2 by the oily passage 8 on the valve seat 1, the stifled end 9 of hydraulic control one-way valve 2 is by being bolted to an end of valve seat 1, the other end of valve seat 1 is provided with port F, the bottom of valve seat 1 is provided with oil-in D, oil-in D communicates with the oil inlet passage of hydraulic control one-way valve 2, and the big valve core of hydraulic control one-way valve 2 is provided with the second oily head piece E, and described port F communicates with the second oily head piece E.
Described first plinth 4 and second plinth 5 are provided with sealing ring 10 with the auxiliary section of valve seat 1.
Described first-class hydraulic fluid port C is communicated with by first oil pipe with the epicoele of column oil cylinder, and the described second oily head piece E is communicated with by second oil pipe with the cavity of resorption of column oil cylinder, and described port F is connected with safety valve.
Hydraulic control one-way valve 2 in the utility model is prior art.
The course of work of the present utility model: during setting prop, the operating grip of control reversal valve commutation is switched to the setting prop gear, the hydraulic oil that comes out from oil pump enters hydraulic control one-way valve 2 through reversal valve from oil-in D, this moment, hydraulic control one-way valve 2 was common one way valve, the big valve core that hydraulic oil is opened hydraulic control one-way valve 2 enters the cavity of resorption of column oil cylinder through second oil pipe from the second oily head piece E, oppressed by the column piston, the fluid of column oil cylinder epicoele enters into the alternately oil duct of one way valve 3 through first oil pipe from first-class hydraulic fluid port C, at this moment, spool 6 blocking-up oil-in A are communicated with first-class hydraulic fluid port C's, so fluid flows directly into the oil return main line from oil return opening B;
In the setting prop process, if the oil pressure of column oil cylinder cavity of resorption surpasses the safety value of safety valve, then fluid flows out from port F, opens the safety-valve, and flows back to fuel tank.
When falling post, the operating grip of control reversal valve commutation switched to fall the post gear, the hydraulic oil that comes out from oil pump enters alternately one way valve 3 through reversal valve from oil-in A, promote spool 6 compression springs 7 and close oil return opening B on second plinth 5, hydraulic oil enters into the epicoele of column oil cylinder by first-class hydraulic fluid port C, entering alternately simultaneously, the hydraulic oil of one way valve 3 oil ducts enters oily passage 8 through oil outlet, enter the stifled chamber of end of hydraulic control one-way valve 2 at last, promote the push rod of hydraulic control one-way valve 2, open big valve core, make the fluid of column oil cylinder cavity of resorption enter hydraulic control one-way valve 2 from the second oily head piece E, discharge from oil-in D again and get back to fuel tank through reversal valve.
By reference to the accompanying drawings embodiment of the present utility model has been done detailed description above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skills possess, can also under the prerequisite that does not break away from the utility model aim, make various variations.
Claims (3)
1. the hydraulic control ring cavity returns liquid low-resistance pile-up valve group system, it is characterized in that: comprise valve seat (1) and hydraulic control one-way valve (2), be arranged with two cavitys in the valve seat (1) in parallel, correspondence is provided with hydraulic control one-way valve (2) and replaces one way valve (3) in two described cavitys, the described alternately structure of one way valve (3) is: first plinth (4) and second plinth (5) are separately positioned on the both sides of valve seat (1), and first plinth (4) and second plinth (5) arrange with valve seat (1) sealing, first plinth (4) is provided with oil-in A, second plinth (5) is provided with oil return opening B, slide in the oil duct between first plinth (4) and second plinth (5) and be provided with spool (6), spool (6) arranges with described oil duct inner wall sealing, be provided with spring (7) between second plinth (5) and the spool (6), the top of valve seat (1) is provided with first-class hydraulic fluid port C, and first-class hydraulic fluid port C communicates with the middle part of described oil duct;
Oil duct between described first plinth (4) and the spool (6) is provided with oil outlet, described oil outlet is communicated with the stifled chamber of the end of hydraulic control one-way valve (2) by the oily passage (8) on the valve seat (1), the stifled end (9) of hydraulic control one-way valve (2) is by being bolted to an end of valve seat (1), the other end of valve seat (1) is provided with port F, the bottom of valve seat (1) is provided with oil-in D, oil-in D communicates with the oil inlet passage of hydraulic control one-way valve (2), the big valve core of hydraulic control one-way valve (2) is provided with the second oily head piece E, and described port F communicates with the second oily head piece E.
2. hydraulic control ring cavity according to claim 1 returns liquid low-resistance pile-up valve group system, it is characterized in that: described first plinth (4) and second plinth (5) are provided with sealing ring (10) with the auxiliary section of valve seat (1).
3. hydraulic control ring cavity according to claim 1 returns liquid low-resistance pile-up valve group system, it is characterized in that: described first-class hydraulic fluid port C is communicated with by first oil pipe with the epicoele of column oil cylinder, the described second oily head piece E is communicated with by second oil pipe with the cavity of resorption of column oil cylinder, and described port F is connected with safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112499 CN203175582U (en) | 2013-03-13 | 2013-03-13 | Hydraulic control annular cavity liquid-return low-resistance integrated valve set system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112499 CN203175582U (en) | 2013-03-13 | 2013-03-13 | Hydraulic control annular cavity liquid-return low-resistance integrated valve set system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175582U true CN203175582U (en) | 2013-09-04 |
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ID=49072297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320112499 Expired - Fee Related CN203175582U (en) | 2013-03-13 | 2013-03-13 | Hydraulic control annular cavity liquid-return low-resistance integrated valve set system |
Country Status (1)
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|---|---|
| CN (1) | CN203175582U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500476A (en) * | 2014-12-15 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Alternate one-way valve and pressurization system |
| CN108571488A (en) * | 2017-03-13 | 2018-09-25 | 上海融德机电工程设备有限公司 | Pulsed hydraulic pressure divides synchronous valve |
| CN111911203A (en) * | 2020-08-31 | 2020-11-10 | 北京华泰力达兴业科技有限公司 | Upright post valve for coal mine hydraulic support |
-
2013
- 2013-03-13 CN CN 201320112499 patent/CN203175582U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500476A (en) * | 2014-12-15 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Alternate one-way valve and pressurization system |
| CN108571488A (en) * | 2017-03-13 | 2018-09-25 | 上海融德机电工程设备有限公司 | Pulsed hydraulic pressure divides synchronous valve |
| CN108571488B (en) * | 2017-03-13 | 2024-01-23 | 上海融德机电工程设备有限公司 | Pulse type hydraulic partial pressure synchronous valve |
| CN111911203A (en) * | 2020-08-31 | 2020-11-10 | 北京华泰力达兴业科技有限公司 | Upright post valve for coal mine hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140313 |