CN203050753U - 1000L/min hydraulic control one-way valve for coal mine hydraulic support - Google Patents
1000L/min hydraulic control one-way valve for coal mine hydraulic support Download PDFInfo
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- CN203050753U CN203050753U CN 201220723694 CN201220723694U CN203050753U CN 203050753 U CN203050753 U CN 203050753U CN 201220723694 CN201220723694 CN 201220723694 CN 201220723694 U CN201220723694 U CN 201220723694U CN 203050753 U CN203050753 U CN 203050753U
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Abstract
A 1000L/min hydraulic control one-way valve for a coal mine hydraulic support comprises a valve body and valve core components and is characterized in that two symmetrical step type valve cavities are arranged in the valve body, a set of valve core component is arranged in one valve cavity, and the valve body is provided with an opening A1, an opening A2, an opening A3, an opening P1, an opening K1, an opening P2 and an opening K2, wherein the A1, the opening A2, the opening A3, the opening P1 and the opening K1 are communicated with the first valve cavity, and the opening P2 and the opening K2 are communicated with the second valve cavity. Each valve core component comprises a core sleeve, a pressing sleeve, a small valve seat, a big valve core, a big valve seat, a small valve core, a valve core spring, a lining, a separation sleeve, a pushing rod sleeve, a pushing rod and a pushing rod spring, wherein the big valve core and the big valve seat are in conical face hard seal, the core sleeve and the pushing rod sleeve are fixed through fastening screws, and therefore each valve core component is enabled to form a whole in mechanical connection. The top of each valve core component is provided with an opening K3 and an opening K4 which are communicated with a cavity where the pushing rod located. The 1000L/min hydraulic control one-way valve is small in unloading impact, compact in structure, convenient to mount and repair, reliable in sealing performance, high in liquid supply speed, flexible in motion and large in flow.
Description
Technical field
The utility model relates to a kind of hydraulic control one-way valve, refers in particular to a kind of coal mine hydraulic supporting 1000L/min hydraulic control one-way valve.
Background technology
Hydraulic control one-way valve is the Hydraulic Elements that the coal mine hydraulic supporting column must be used, and it is with the constant working resistance of safety valve acting in conjunction maintenance hydraulic support.Hydraulic control one-way valve flow commonly used at present is little, and mostly is the one-level unloading, and needs the proportioning valve fishplate bar to be installed on the column along the column axis normal, and unloading is impacted bigger, the field maintenance difficulty.
The utility model content
It is the 1000L/min hydraulic control one-way valve for the coal mine hydraulic supporting metered flow that the purpose of this utility model is to provide a kind of, and its unloading is impacted little, compact conformation, and sealing performance is reliable, and liquid supply speed is fast, and flow is big, adopts the plug-in structure to be convenient to installation and maintenance.
For achieving the above object, the solution that the utility model is taked is: a kind of coal mine hydraulic supporting 1000L/min hydraulic control one-way valve, it comprises valve body and core assembly, it is characterized in that: the step valve pocket that is provided with two symmetries in the valve body, one cover core assembly respectively is housed in each valve pocket, valve body is provided with the A1 mouth that communicates with first valve pocket, the A2 mouth, the A3 mouth, the P1 mouth, the K1 mouth, the P2 mouth that communicates with second valve pocket, the K2 mouth, described core assembly is by core retainer plate, gland, little valve seat, big valve core, big valve seat, small valve core, valve core spring, lining, separation sleeve, top stem casing, push rod and push rod spring are formed, big valve core seals firmly with the big valve seat conical surface, core retainer plate and top stem casing are fixed by trip bolt, make core assembly become the integral body of a cover mechanical connection, every cover core assembly top portion is not provided with a K3 mouth and K4 mouth, communicates with the chamber at push rod place.
In the such scheme: described valve body (1) is tubular structure.
In the such scheme: described core assembly (2) is provided with sealing ring in the junction of each parts, and described sealing ring adopts polyurethane for making material.Its unloading is impacted little, and compact conformation is convenient to installation and maintenance, and sealing performance is reliable, and liquid supply speed is fast, is active in one's movements, and flow is big.
Advantage of the present utility model is that its flow is big, and direct the connection with hydraulic support column not needing the valve fishplate bar, it has the secondary offloading functions, can reduce unloading and impact, the cartridge valve core assembly that uses can be packed into or split out from valve body easily, is convenient to field maintenance and maintenance.
Its operating principle is: the P2 mouth connects inlet, this inlet liquid is from the direct feed flow of back-flushing filter, without electric-hydraulic control reversing valve, so realize quick feed flow function, when electric-hydraulic control reversing valve during to K2 mouth or K4 confession liquid, liquid promotion push rod overcomes spring force and hydraulic coupling is backed down big valve core, make between big valve core and the big valve seat and form the feed liquor opening, fluid port and the technology mouth of liquid on core retainer plate and gland flows into another set of core assembly, under the effect of hydraulic coupling, overcome the spring force of valve core spring in the another set of core assembly, thereby make the column setting prop, when column is raised to working resistance, K2 mouth or K4 mouth stop feed flow, and two cover core assemblies and big tightly sealing of valve seat guarantee the column continuous firing under fluid pressure and spring force effect.When electric-hydraulic control reversing valve to K1 mouth or K3 confession liquid, push rod overcomes spring force and hydraulic coupling is backed down big valve core, thereby realizes that post falls in column.
Description of drawings
Fig. 1 looks cross-sectional view for master of the present utility model.
Fig. 2 is upward view of the present utility model.
Fig. 3 is the cross-sectional view of the utility model core assembly.
Among the figure: 1, valve body, 2, core assembly, 3, valve pocket, 4, the A1 mouth, 5, the A2 mouth, 6, A3 mouth, 7, the P1 mouth, 8, the K1 mouth, 9, the P2 mouth, 10, K2 mouth, 11, core retainer plate, 12, gland, 13, little valve seat, 14, big valve core, 15, big valve seat, 16, small valve core, 17, valve core spring, 18, lining, 19, separation sleeve, 20, top stem casing, 21, push rod, 22, push rod spring, 23, trip bolt, 24, the K3 mouth, 25, the K4 mouth.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of coal mine hydraulic supporting 1000L/min hydraulic control one-way valve, it comprises valve body 1 and core assembly 2, it is characterized in that: the step valve pocket 3 that is provided with two symmetries in the valve body 1, one cover core assembly 2 respectively is housed in each valve pocket 3, valve body 1 is provided with the A1 mouth 4 that communicates with first valve pocket, A2 mouth 5, A3 mouth 6, P1 mouth 7, K1 mouth 8, the P2 mouth 9 that communicates with second valve pocket, K2 mouth 10, described core assembly 2 is by core retainer plate 11, gland 12, little valve seat 13, big valve core 14, big valve seat 15, small valve core 16, valve core spring 17 linings 18, separation sleeve 19, top stem casing 20, push rod 21 and push rod spring 22 are formed, big valve core 14 seals firmly with big valve seat 15 conical surfaces, core retainer plate 11 and top stem casing 20 are fixing by trip bolt 23, make core assembly 2 become the integral body of a cover mechanical connection, two cover core assemblies, 2 tops are respectively equipped with a K3 mouth 24 and K4 mouth 25, and K3 mouth 24 and K4 mouth 25 communicate with the chamber at push rod 21 places.In the such scheme: described valve body 1 is tubular structure, and described core assembly 2 is provided with sealing ring in the junction of each parts, and described sealing ring adopts polyurethane for making material.
Claims (3)
1. coal mine hydraulic supporting 1000L/min hydraulic control one-way valve, it comprises valve body (1) and core assembly (2), it is characterized in that: the step valve pocket (3) that is provided with two symmetries in the valve body (1), one cover core assembly (2) respectively is housed in each valve pocket (3), valve body (1) is provided with the A1 mouth (4) that communicates with first valve pocket, A2 mouth (5), A3 mouth (6), P1 mouth (7), K1 mouth (8), the P2 mouth (9) that communicates with second valve pocket, K2 mouth (10), described core assembly (2) is by core retainer plate (11), gland (12), little valve seat (13), big valve core (14), big valve seat (15), small valve core (16), valve core spring (17) lining (18), separation sleeve (19), top stem casing (20), push rod (21) and push rod spring (22) are formed, big valve core (14) seals firmly with big valve seat (15) conical surface, core retainer plate (11) and top stem casing (20) are fixing by trip bolt (23), make core assembly (2) become the integral body of a cover mechanical connection, two cover core assembly (2) tops are respectively equipped with a K3 mouth (24) and K4 mouth (25), and K3 mouth (24) and K4 mouth (25) communicate with the chamber at push rod (21) place.
2. a kind of coal mine hydraulic supporting 1000L/min hydraulic control one-way valve according to claim 1, it is characterized in that: described valve body (1) is tubular structure.
3. a kind of coal mine hydraulic supporting 1000L/min hydraulic control one-way valve according to claim 1, it is characterized in that: described core assembly (2) is provided with sealing ring in the junction of each parts, and described sealing ring adopts polyurethane for making material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723694 CN203050753U (en) | 2012-12-19 | 2012-12-19 | 1000L/min hydraulic control one-way valve for coal mine hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723694 CN203050753U (en) | 2012-12-19 | 2012-12-19 | 1000L/min hydraulic control one-way valve for coal mine hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050753U true CN203050753U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220723694 Expired - Lifetime CN203050753U (en) | 2012-12-19 | 2012-12-19 | 1000L/min hydraulic control one-way valve for coal mine hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050753U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410538A (en) * | 2013-08-20 | 2013-11-27 | 华煤发展科技有限公司 | Double-spool hydraulic control check valve and hydraulic support system |
| CN104131824A (en) * | 2014-08-08 | 2014-11-05 | 霍州煤电集团霍源通新产业投资有限公司 | Inserted hydraulic valve |
| CN106285757A (en) * | 2016-09-27 | 2017-01-04 | 丰隆高科液压股份有限公司 | A kind of hydraulic control one-way valve with pressure monitoring function |
-
2012
- 2012-12-19 CN CN 201220723694 patent/CN203050753U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410538A (en) * | 2013-08-20 | 2013-11-27 | 华煤发展科技有限公司 | Double-spool hydraulic control check valve and hydraulic support system |
| CN104131824A (en) * | 2014-08-08 | 2014-11-05 | 霍州煤电集团霍源通新产业投资有限公司 | Inserted hydraulic valve |
| CN106285757A (en) * | 2016-09-27 | 2017-01-04 | 丰隆高科液压股份有限公司 | A kind of hydraulic control one-way valve with pressure monitoring function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |