CN2799862Y - Flow control valve - Google Patents
Flow control valve Download PDFInfo
- Publication number
- CN2799862Y CN2799862Y CN 200520100524 CN200520100524U CN2799862Y CN 2799862 Y CN2799862 Y CN 2799862Y CN 200520100524 CN200520100524 CN 200520100524 CN 200520100524 U CN200520100524 U CN 200520100524U CN 2799862 Y CN2799862 Y CN 2799862Y
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- Prior art keywords
- valve
- alternate
- way
- flow control
- alternately
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- Expired - Fee Related
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Abstract
The utility model relates to a flow control valve which belongs to the technical field of parts of coal mine machinery. The utility model is mainly composed of a valve housing and alternate one-way valves, wherein each alternate one-way valve is composed of a throttling valve sleeve, a throttling valve core, a valve seat, a valve sleeve, a valve core and a spring which are matched with each other. The utility model is characterized in that the upper part and the lower part of the valve housing is provided with two sets of alternate one-way valves with identical structures, and the upper and the lower parts of each alternate one-way valve are respectively provided with two working fluid outlets; both ends of each alternate one-way valve are respectively provided with a flow adjusting bolt in a matching way; the middle part of each of the two sets of alternate one-way valves is provided with a liquid inlet and a liquid return port; the liquid inlets are communicated with valve cavities on the right sides of the two sets of the alternate one-way valves, and the liquid return ports are communicated with valve cavities on the left sides of the two sets of the alternate one-way valves. The flow control valve which adopts the two alternate one-way valves can adjust the flow quantity of two streams of working fluid simultaneously; with the adoption of the flow control valve, the combination of multiple valves and the multi-way control of a control system of a hydraulic support can be realized, and the sensitivity of the control system of the hydraulic support can be improved; moreover, the performance is stable and the support moving efficiency of the hydraulic support can be greatly improve.
Description
Technical field
The utility model belongs to coal mine machinery component technology field, specifically is meant a kind of flow control valve that is used for coal mine hydraulic supporting.
Background technology
In the modern coal mining industries,, be the also corresponding raising of requirement of hydraulic support to the support apparatus of mine along with the continuous development of mechanical coal mining technology and the raising of automation degree of equipment.Move and support is the operation of single frame the position of hydraulic support in original mine, both wasted time and energy, and has potential safety hazard again.Subject matter is the requirement that existing various hydraulic control valve can't adaptive technique, and its structure and performance directly influence the control effect and the operating efficiency of hydraulic control system.Flow control valve is one of critical component of the manual fast-moving bracket control system of hydraulic support, and its performance directly influences the control effect and the operating efficiency of hydraulic control system.Existing flow control valve is mostly realized by single alternately one way valve, only can control the flow of one working solution, function singleness, efficient are low, and that has limited hydraulic support in the coal-cutting machinery moves frame efficient, and functional reliability is poor, is unfavorable for the development of colliery industry.
The utility model content
The purpose of this utility model solves the above-mentioned problems in the prior art exactly, design, provide a kind of improve hydraulic support move the frame efficient and the technical scheme of the flow control valve of performance safety and stability.
Described flow control valve, mainly by valve casing, alternately one way valve constitutes, alternately one way valve is by the throttling valve pocket that cooperatively interacts, throttling valve core, valve seat, valve pocket, spool, spring constitutes, it is characterized in that the alternately one way valve that valve casing upper and lower settings two nested structures are identical, the position is provided with two working solution outlets up and down, alternately the two ends of one way valve are equipped with flow respectively and adjust bolt, two covers alternately one way valve medium position are provided with inlet and liquid return hole, inlet and two covers up and down alternately the right side valve pocket of one way valve communicate, and liquid return hole communicates with the left side valve pocket that two covers up and down replace one way valve.
This flow control valve, adopted double cross for one way valve, be skillfully constructed, rational in infrastructure, can regulate the flow size of two strands of working solutions simultaneously, use this flow control valve, can realize the many valve combinations and the multidirectional control of hydraulic support control system, improved the hydraulic support sensitivity of control system, and stable performance is greatly improved the frame efficient of moving of hydraulic support.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with Figure of description the utility model is further described, provides the specific embodiment simultaneously.
As shown in the figure, valve casing 1 is symmetrical arranged the identical alternately one way valve of two nested structures up and down, the position up and down of valve casing 1 is symmetrical arranged two working solution outlets 5,5a, working solution outlet 5,5a are communicated with the valve pocket of one way valve alternately by passage, and controlled by one way valve alternately to be communicated with inlet 10, liquid return hole 12.Alternately one way valve is made of the throttling valve pocket 2 that cooperatively interacts and 2a, throttling valve core 3 and 3a, valve seat 4 and 4a, valve pocket 6, spool 7, spring 8, two ends are equipped with flow respectively and adjust bolt 9,9a, be used to regulate the size of working solution flow, to select best working hydraulic pressure.Two covers alternately one way valve medium position are provided with inlet 10 and liquid return hole 12, and inlet 10 and two covers up and down alternately the right side valve pocket of one way valve communicate, liquid return hole 12 with two overlap the left side valve pocket that replaces one way valve and communicate up and down.Between throttling valve pocket 2,2a and valve casing 1 inwall seal 13,13a are set, between throttling valve pocket 2,2a cavity inner wall and corresponding throttling valve core 3, the 3a seal 14,14a are set, between spool 7 and valve seat 4, the 4a valve pad 11 is set.The course of work of this flow control valve: working solution enters alternately one way valve right side valve pocket from inlet 10, the hydraulic pressure increase makes spool 7 to left movement in the valve pocket, open the right side valve port, connect working solution outlet 5,5a, seal the passage of left side valve port and liquid return hole 12 simultaneously, working solution enters subordinate equipment respectively by working solution outlet 5,5a while fluid---the hydraulic support column cavity of resorption, finish stent support; Stop feed liquor and do back liquid when work, be subjected to the elastic force effect of spring 8 that spool 7 is moved right, sealing right side valve port is opened the left side valve port simultaneously, and working solution returns into one way valve valve pocket alternately, flows out back liquid by liquid return hole 12.
Claims (5)
1, flow control valve, mainly by valve casing (1), alternately one way valve constitutes, alternately one way valve is by the throttling valve pocket (2 that cooperatively interacts, 2a), throttling valve core (3,3a), valve seat (4,4a), valve pocket (6), spool (7), spring (8) constitutes, it is characterized in that the alternately one way valve that valve casing (1) upper and lower settings two nested structures are identical, the position is provided with two working solution outlets (5 up and down, 5a), alternately the two ends of one way valve are equipped with flow respectively and adjust bolt (9,9a), two covers alternately one way valve medium position are provided with inlet (10) and liquid return hole (12), inlet (10) and two covers up and down alternately the right side valve pocket of one way valve communicate, and liquid return hole (12) communicates with the left side valve pocket that two covers up and down replace one way valve.
2, flow control valve as claimed in claim 1 is characterized in that working solution outlet (5,5a) is symmetrical in the position up and down of valve casing (1).
3, flow control valve as claimed in claim 1 is characterized in that being provided with between throttling valve pocket (2,2a) and valve casing (1) inwall seal (13,13a).
4, flow control valve as claimed in claim 1 is characterized in that being provided with between throttling valve core (3,3a) and the throttling valve pocket (2,2a) seal (14,14a).
5, flow control valve as claimed in claim 1 is characterized in that between spool (7) and the valve seat (4,4a) valve pad (11) being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100524 CN2799862Y (en) | 2005-02-05 | 2005-02-05 | Flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100524 CN2799862Y (en) | 2005-02-05 | 2005-02-05 | Flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2799862Y true CN2799862Y (en) | 2006-07-26 |
Family
ID=36842360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520100524 Expired - Fee Related CN2799862Y (en) | 2005-02-05 | 2005-02-05 | Flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2799862Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865317A (en) * | 2010-05-19 | 2010-10-20 | 煤炭科学研究总院太原研究院 | Electromagnetic unloading valve of emulsion pump station |
-
2005
- 2005-02-05 CN CN 200520100524 patent/CN2799862Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865317A (en) * | 2010-05-19 | 2010-10-20 | 煤炭科学研究总院太原研究院 | Electromagnetic unloading valve of emulsion pump station |
| CN101865317B (en) * | 2010-05-19 | 2011-11-16 | 煤炭科学研究总院太原研究院 | Electromagnetic unloading valve of emulsion pump station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060726 Termination date: 20110205 |