CN203308490U - High-flow balancing two-way lock - Google Patents
High-flow balancing two-way lock Download PDFInfo
- Publication number
- CN203308490U CN203308490U CN2013203089499U CN201320308949U CN203308490U CN 203308490 U CN203308490 U CN 203308490U CN 2013203089499 U CN2013203089499 U CN 2013203089499U CN 201320308949 U CN201320308949 U CN 201320308949U CN 203308490 U CN203308490 U CN 203308490U
- Authority
- CN
- China
- Prior art keywords
- valve
- push rod
- valve seat
- head
- spool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a high-flow balancing two-way lock. The high-flow balancing two-way lock comprises a valve body and two hydraulic components, wherein the two hydraulic components are respectively arranged in two valve cavities of the valve body; each hydraulic component comprises a valve core, a valve base and a push rod; a cavity is arranged on the valve base; the head of the push rod extends into the cavity of the valve base; the tail of the push rod is positioned outside the valve base; the head of the valve core is in sealing connection with the valve base at a port where the head of the valve core is communicated with the valve body on the valve base; a return spring is also sleeved on the push rod; and the valve core is in hard sealing connection with the valve base. Compared with the prior art, the high-flow balancing two-way lock has the advantages that hard sealing is adopted between the valve core and the valve body, compared with soft material sealing, hard sealing ensures that the high-flow balancing two-way lock not only is reliably sealed, but also can be resistant to ultrahigh pressure, and the service life is prolonged.
Description
Technical field
The utility model relates to the Hydraulic Elements in the coal mine hydraulic supporting hydraulic circuit, and specifically, the utility model relates to a kind of large flow equilibrium reversible lock.
Background technology
Large flow equilibrium reversible lock is mainly used in coal mine hydraulic supporting, and the balance of co-controlling hydraulic support together with the operating valve group helps jack work.When the operating valve group was in meta and External Force Acting structure and does not reach opening pressure of safety valve, it can make jack keep for a long time certain duty, thereby makes hydraulic support play under external force due supporting role.
Along with the colliery instructions for use more and more develops towards integrated and automation direction, reliability and application life to large flow equilibrium reversible lock require also more and more higher, traditional large flow equilibrium reversible lock is due to the conical surface seal that adopts valve pad sealing or polyformaldehyde material, application life and accommodative ability of environment deficiency, valve pad is easy to destroy under the extruding repeatedly of valve seat, the sealing of conical surface polyformaldehyde also can be caused seal failure by cinder or other hard thing destruction.In addition, the part kind of valve inner is many, and the dismounting difficulty repairs also very inconvenience, particularly under coal mine, is subjected to spatial limitation.Therefore, current large flow equilibrium reversible lock more and more can not meet the demand of colliery applying unit.
The utility model content
Technical problem to be solved in the utility model is to provide the large flow equilibrium reversible lock that a kind of sealing reliability is high.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of large flow equilibrium reversible lock, comprise valve body and two cover hydraulic packages, two cover hydraulic packages are located at respectively in two valve pockets of valve body, hydraulic package comprises spool, valve seat and push rod, valve seat is provided with cavity body, the head of push rod stretches in the cavity body of valve seat, the afterbody of push rod is positioned at outside valve seat, the port with cavity body be communicated with of the head of spool on valve seat is connected with valve base sealing, on push rod also the cover return spring is arranged, between spool and valve seat for firmly being tightly connected.
Head at described push rod is provided with external screw thread, in the inner position near cavity body of described valve seat, be provided with limited block, on this limited block, be provided with through hole, on the inwall of through hole, be provided with push rod on the suitable internal thread of external screw thread, described return spring one end is against on limited block, and the other end is against the afterbody of push rod.
The head of described spool is the frustum structure, and described push rod starts to contact in the port of described valve seat with spool.
The utility model adopts technique scheme, compared with prior art, between the spool of this large flow equilibrium reversible lock and valve body, is hard sealing, sealing with respect to softwood matter, hard sealing makes large flow equilibrium reversible lock not only seal reliably, and also ability super-pressure, increase the service life.
The accompanying drawing explanation
Fig. 1 is the sectional view of large flow equilibrium reversible lock of the present utility model;
Fig. 2 is the lateral view of Fig. 1;
Fig. 3 is the sectional view of hydraulic package;
Mark in above-mentioned figure is: 1, valve pocket; 2, hydraulic package; 21, spool; 22, valve seat; 23, return spring; 24, push rod; 25, cavity body; 26, port; 27, limited block; 3, valve body; 4, inlet; 5, liquid outlet; 6, screw plug.
The specific embodiment
Be a kind of large flow equilibrium reversible lock of the present utility model as depicted in figs. 1 and 2, it comprises that valve body 3, two valve pockets 1 and two cover hydraulic packages 2, two cover hydraulic packages 2 are located at respectively in two valve pockets of valve body 3, and two valve pockets are connected in valve body 3.Two valve pockets 1 that match with hydraulic package 2 are located at the same side of valve body 3, valve pocket 1 does not seal, valve pocket 1 is threaded with valve body 3, the one end inserts the inside of valve body 3, the other end is for being connected with external equipment, the connection-peg of external equipment inserts in the spliced eye of valve pocket 1 end, and with spliced eye for being threaded.Opposite side at valve body 3 is provided with inlet 4 and liquid outlet 5, and inlet 4 is communicated with the hydraulic package 2 on top, and liquid outlet 5 is communicated with the hydraulic package 2 of bottom.Top and bottom at valve body 3 are separately installed with two screw plugs 6, and screw plug 6 is be used to blocking the oil duct be communicated with valve pocket respectively in valve body 3 tops and bottom setting, and screw plug 6 is threaded with valve body 3.
As shown in figures 1 and 3, hydraulic package 2 comprises spool 21, valve seat 22 and push rod 24, one end of valve seat 22 inserts in valve pocket 1, the other end is against on the limited step arranged on the inwall of valve pocket of valve body 3, valve seat 22 is provided with cavity body 25, the head of push rod 24 stretches in the cavity body 25 of valve seat 22, the afterbody of push rod 24 is positioned at outside valve seat 22, spool 21 is arranged in the groove of valve pocket 1 inside, between the inwall of spool 21 and valve pocket 1, be provided with valve core spring, under the impetus of valve core spring, port 26 places and the valve seat 22 that with cavity body 25 are communicated with of the head of spool 21 on valve seat 22 is tightly connected, also cover has return spring 23 on push rod 24.In order to solve problems of the prior art, between the spool 21 of hydraulic package 2 and valve seat 22 for firmly being tightly connected, spool 21 adopts metal material to make, realized the hard sealing between valve body 3 and valve seat 22, sealing with respect to softwood matter, firmly seal not only good seal performance, also ability super-pressure, extended originally the application life of flow equilibrium reversible lock greatly.
As shown in figures 1 and 3, the shaft at the head place of the push rod 24 of hydraulic package 2 is provided with external screw thread, position in the close cavity body 25 in the inside of valve seat 22 is provided with limited block 27, on this limited block 27, be provided with through hole, on the inwall of through hole, be provided with push rod 24 on the suitable internal thread of external screw thread, return spring 23 1 ends are against on limited block 27, and the other end is against on the afterbody of push rod 24.Valve seat 22 and push rod 24 are for being threaded, push rod 24 can screw in the cavity body 25 in valve seat 22, forms the hydraulic package 2 of plug-in, makes the level of integrated system of whole large flow equilibrium reversible lock higher, be easy for installation and maintenance, can directly by changing plug-in hydraulic pressure assembly 2, just can repair.
As shown in figures 1 and 3, the head of spool 21 and be the frustum structure, the head of spool 21 no longer stretches in cavity body 25, and 21 ports at valve seat 22 of push rod 24 and spool, 26 places start to contact, the structure of spool 21 is simpler, the more compact structure of large flow equilibrium reversible lock integral body.In addition, the material of valve core spring and return spring 23 is carbon spring steel wires.
The operating principle of this large flow equilibrium reversible lock is identical with the balance reversible lock of prior art.This large flow equilibrium reversible lock is of a size of 141.5*140*40mm, and nominal flow rate is 125L/min, and nominal pressure is 50MPa.
The above is exemplarily described the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subject to the restrictions described above; the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out as long as adopted; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (3)
1. large flow equilibrium reversible lock, comprise valve body and two cover hydraulic packages, two cover hydraulic packages are located at respectively in two valve pockets of valve body, hydraulic package comprises spool, valve seat and push rod, valve seat is provided with cavity body, the head of push rod stretches in the cavity body of valve seat, the afterbody of push rod is positioned at outside valve seat, the port with cavity body be communicated with of the head of spool on valve seat is connected with valve base sealing, on push rod also the cover return spring is arranged, it is characterized in that: between described spool and described valve seat for firmly being tightly connected.
2. large flow equilibrium reversible lock according to claim 1, it is characterized in that: the head at described push rod is provided with external screw thread, in the inner position near cavity body of described valve seat, be provided with limited block, on this limited block, be provided with through hole, on the inwall of through hole, be provided with push rod on the suitable internal thread of external screw thread, described return spring one end is against on limited block, and the other end is against the afterbody of push rod.
3. large flow equilibrium reversible lock according to claim 1 and 2, it is characterized in that: the head of described spool is the frustum structure, described push rod starts to contact in the port of described valve seat with spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203089499U CN203308490U (en) | 2013-05-31 | 2013-05-31 | High-flow balancing two-way lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203089499U CN203308490U (en) | 2013-05-31 | 2013-05-31 | High-flow balancing two-way lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308490U true CN203308490U (en) | 2013-11-27 |
Family
ID=49614705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203089499U Expired - Fee Related CN203308490U (en) | 2013-05-31 | 2013-05-31 | High-flow balancing two-way lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291340A (en) * | 2013-05-31 | 2013-09-11 | 巨隆集团芜湖兴隆液压有限公司 | Large-flow balance bidirectional lock |
| CN104500122A (en) * | 2014-12-26 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Automatic unloading reversible lock |
-
2013
- 2013-05-31 CN CN2013203089499U patent/CN203308490U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291340A (en) * | 2013-05-31 | 2013-09-11 | 巨隆集团芜湖兴隆液压有限公司 | Large-flow balance bidirectional lock |
| CN104500122A (en) * | 2014-12-26 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Automatic unloading reversible lock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203441509U (en) | Novel large-flow hydraulic control one-way valve | |
| CN202718699U (en) | Large flow bidirectional lock | |
| CN202718700U (en) | Middle flow reversible lock | |
| CN203347817U (en) | Middle flow balance reversible lock | |
| CN203308490U (en) | High-flow balancing two-way lock | |
| CN203130118U (en) | Differential pressure combination valve | |
| CN202039871U (en) | Safety valve | |
| CN202832603U (en) | Novel medium-flux hydraulic control one-way valve | |
| CN203347811U (en) | Inserted mass flow balance reversible lock | |
| CN103291339A (en) | Medium flow balancing two-way lock | |
| CN202560255U (en) | Inserting type hard sealing bidirectional lock | |
| CN203308480U (en) | Cartridge-type medium-flow balance two-way lock | |
| CN103291340A (en) | Large-flow balance bidirectional lock | |
| CN202832576U (en) | Three-use valve for mining individual hydraulic prop | |
| CN203308481U (en) | Balance floating two-way lock | |
| CN203962007U (en) | Flow pilot operated check valve in one | |
| CN203115111U (en) | Safe stop valve | |
| CN201288863Y (en) | Superpose installation pilot-controlled check valve | |
| CN203770281U (en) | Throttle valve | |
| CN103291336A (en) | Cartridge large-flow balance bidirectional lock | |
| CN103291341A (en) | Cartridge middle-flow balance bidirectional lock | |
| CN202832580U (en) | Middle-flow hydraulic control one-way valve | |
| CN202580147U (en) | Slow-closure type hydraulic check valve | |
| CN105443774A (en) | Efficient dustproof sealing stop valve | |
| CN203925536U (en) | A kind of pushing one-way lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171110 Address after: Zhi Zhen Wuhu County in Anhui province Wuhu city Anhui Bay 241000 Wuhu Economic Development Zone Sunshine Road No. 768 building 06 Patentee after: HONGDA INTELLIGENT MACHINERY Co.,Ltd. Address before: 241000 Wuhu County, Anhui Province Machinery Industrial Park, Wuhu Patentee before: JULONG GROUP WUHU XINGLONG HYDRAULIC Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |