CN2833201Y - Hydraulic reversing valve capable of avoiding external leakage - Google Patents
Hydraulic reversing valve capable of avoiding external leakage Download PDFInfo
- Publication number
- CN2833201Y CN2833201Y CN 200520091174 CN200520091174U CN2833201Y CN 2833201 Y CN2833201 Y CN 2833201Y CN 200520091174 CN200520091174 CN 200520091174 CN 200520091174 U CN200520091174 U CN 200520091174U CN 2833201 Y CN2833201 Y CN 2833201Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- sealing cover
- spool
- magnetic patch
- linkage rod
- 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
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Abstract
The utility model discloses a kind of hydraulicdirectional control valve of avoiding outer seepage, it includes valve body, handle, spool places in the valve body, sealing cover is fixed on the two ends, the left and right sides of valve body, it is characterized in that the tubular chamber is arranged in the described sealing cover, cooperate with spool two magnetostatic opposite polarity places in the tubular chamber of left and right sides sealing cover, the top of sealing cover also is provided with sleeve pipe, can move axially with adjacent magnetostatic two moving magnetic patch that produce repulsive force and place respectively in the sleeve pipe at sealing cover top, the connecting sleeve of band screw rod is installed on the moving magnetic patch, moving magnetic patch is fixed on the otic placode at linkage rod two ends by the connecting sleeve screw rod in sleeve pipe, its lower end of handle that the control linkage rod moves is connected with the valve body hinge, because spool and valve body form static seal, adopt the magnetic force control spool of magnetic patch in valve body, to move commutation, solved the outer seepage problem of hydraulicdirectional control valve, had easy to process, good sealing effect, long service life has been avoided the outer seepage of hydraulicdirectional control valve.
Description
Technical field
The utility model relates to a kind of selector valve, more particularly relates to avoid the hydraulicdirectional control valve of outer seepage, belongs to a kind of improvement of hydraulicdirectional control valve.
Background technique
Under equal power situation, because little, in light weight, the compact structure of hydraulic actuator volume, stable working, reflection are soon, be easy to realize quick startup, braking and frequent advantages such as commutation, so it is widely used in each side such as machine-building, engineering construction, petrochemical industry, communications and transportation, military machine, mine metallurgy, light industry, agricultural machinery, fishery, forestry.Simultaneously, also be applied to each field of engineering technology such as space flight and aviation, ocean development, nuclear energy engineering and earthquake prediction.But hydraulic transmission can not guarantee strict velocity ratio, mainly is to be caused by leakage except the compressibility of hydraulic oil, because hydraulic actuator is generally motive sealing, and the precision prescribed height, working life is short.Because hydraulic fluid leak is bigger, so efficient is lower,, leak not only contaminated site of oil if deal with improperly, but but also the generation of fire hazard and explosive accident.In order to reduce leakage, hydraulic element are had relatively high expectations on accuracy of manufacturing, have therefore improved the difficulty of processing of product greatly, have increased cost of production.Hydraulicdirectional control valve is a control original paper in the Hydraulic Power Transmission System.But, because moving axially by handle of spool realizes that spool and valve body are movable sealing structure, poor sealing performance, working life is short, can't avoid outer seepage, has brought inconvenience for production, processing and the use of hydraulic pressure selector valve.
Summary of the invention
The purpose of this utility model provides a kind of hydraulicdirectional control valve of avoiding outer seepage, and it has not only realized the static seal of spool and valve body, and can isolate the transmission commutation, has solved the outer seepage problem of selector valve.
The purpose of this utility model is to realize like this, it includes valve body, handle, spool places in the valve body, sealing cover is fixed on the two ends, the left and right sides of valve body, it is characterized in that the tubular chamber is arranged in the described sealing cover, cooperate with spool two magnetostatic opposite polarity places in the tubular chamber of left and right sides sealing cover, the top of sealing cover also is provided with sleeve pipe, can move axially with adjacent magnetostatic two moving magnetic patch that produce repulsive force and place respectively in the sleeve pipe at sealing cover top, the connecting sleeve of band screw rod is installed on the moving magnetic patch, moving magnetic patch is fixed on the otic placode at linkage rod two ends by the connecting sleeve screw rod in sleeve pipe, and its lower end of handle that the control linkage rod moves is connected with the valve body hinge.
The utility model has the advantages that, because there is sealing cover at the two ends, the left and right sides of valve body, make spool and valve body form the static seal structure of sealing, easy to process, good sealing effect, long service life, avoided the outer seepage of hydraulicdirectional control valve, again owing in the sealing cover tubular chamber is arranged, its top is axially arranged with sleeve pipe, in the tubular chamber that places left and right sides sealing cover of two magnetostatic opposite polarities, two moving magnetic patch and adjacent magnetostatic placing in the sleeve pipe of same polarity respectively, about two magnetostatic in the tubular chamber, form one with the spool adhesive, when moving handle moves axially linkage rod, two same moved further of moving magnetic patch about in the sleeve pipe, magnetostatic in the sealing cover drives the same moved further of spool under the effect of moving magnetic patch, finished the commutation of valve body by isolating transmission, had simple in structure, reliable operation, mounting or dismounting are convenient, for ease of maintenaince, long service life, can avoid the characteristics of outer seepage.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a concrete structure generalized section of the present utility model.
Embodiment
In Fig. 1, valve body 24 usefulness nonmagnetic substance stainless steels are made, the endoporus of valve body 24 has five undercut grooves, every undercut groove all has oil through, and 21 is filler opening, and 10,11 is the left and right sides working oil chamber hydraulic fluid port of hydraulic jack, 22 is return opening, spool 12 is cylindrical bodys that three convex shoulders are arranged, and spool 12 matches with the endoporus of valve body 24, and can move axially in valve body 24.The identical dynamic and static magnetic patch 3,17,9,14 of magnetic force totally four rounded, make magnetostatic 9 behind the two ends that are pull-in on spool 12 of two magnetostatic 9,14 opposed polarity, 14 and spool 12 form a magnetic.Sealing cover 7,15 is symmetrical two, and sealing cover 7,15 is made with the nonmagnetic substance stainless steel equally. Cylindric chamber 8,19 is arranged in sealing cover 7,15, and the lid mouth end of sealing cover 7,15 is welded with flange.Two sealing covers 7,15 add the two ends that are fixed by bolts to valve body 24 behind the sealing gasket by flange respectively, and two ends pick magnetostatic 9,14 spool 12 and can move axially in the tubular chamber 8,19 of sealing cover 7,15.The top of two sealing covers 7,15 made sleeve pipe 23,25 and sealing cover 7,15 vertically be fixed into one about two identical sleeve pipes 23,25 axially were welded on respectively symmetrically.Two moving magnetic patch 3,17 place respectively in the casing cavity 6,18 of symmetrical two sleeve pipes 23,25.On two moving magnetic patch 3,17 connecting sleeve is housed, on connecting sleeve, is welded with screw rod.Moving magnetic patch 3,17 in the sleeve pipe 23,25 is fixed on the otic placode at linkage rod 1 two ends by the screw rod on the connecting sleeve.Also weld a support 13 on right sealing cover 15, be installed with guide finger on support 13, guide finger places in the pilot hole of the strip on the linkage rod 1, is used to support linkage rod 1.Hinge seat 5 of welding on left sealing cover 7, the lower end of handle 4 is connected with hinge seat 5 hinges, and finger also is installed on linkage rod 1, and the finger on the linkage rod 1 is pegged graft with the strip dial hole on the handle and is cooperated.The otic placode at linkage rod 1 two ends is fixed with the bellows 2,16 of scalable flexibility.Support 13 and hinge seat 5 or directly be welded on the valve body 24.
During work, when moving handle 4 left, handle 4 is that the center of circle turns left with the hinge axis on the hinge seat 5 of lower end, driving linkage rod 1 moves to left, moving magnetic patch 3,17 on the linkage rod 1 two ends otic placode moves left in the casing cavity 6,18 of sleeve pipe 23,25 synchronously, under the effect of magnetic force magnetostatic 9,14 drive spools 12 and in valve body 24, axially move to left, make spool 12 move to the left position of valve body 24, at this moment oil suction chamber 21 and oil pocket 11 communicate, and oil pocket 10 communicates with oil back chamber 22.When the upper end of moving handle 4 to the right, handle 4 is that the center of circle turns right with the hinge axis of lower end, driving linkage rod 1 moves to right, linkage rod 1 makes magnetic patch 3,17 move to right in sleeve pipe 23,25 inter-syncs, axially move to right in valve body 24 driving spool 12 under the effect of magnetic force for magnetostatic 9,14, make spool 12 move to location right, oil suction chamber 21 and oil pocket 10 communicate, oil pocket 11 communicates by annular groove 20 and oil back chamber 22, the commutation of the hydraulic jack of finishing.Make spool 12 be returned to meta under the effect of sound magnetic patch 3,9,14,17 when release handle 4, when spool 12 mediated, oil pocket 21,10,11,22 did not all communicate oil circuit is disconnected.
Claims (3)
1, a kind of hydraulicdirectional control valve of avoiding outer seepage, it includes valve body, handle, spool places in the valve body, sealing cover is fixed on the two ends, the left and right sides of valve body, it is characterized in that the tubular chamber is arranged in the described sealing cover, cooperate with spool two magnetostatic opposite polarity places in the tubular chamber of left and right sides sealing cover, the top of sealing cover also is provided with sleeve pipe, can move axially with adjacent magnetostatic two moving magnetic patch that produce repulsive force and place respectively in the sleeve pipe at sealing cover top, the connecting sleeve of band screw rod is installed on the moving magnetic patch, moving magnetic patch is fixed on the otic placode at linkage rod two ends by the connecting sleeve screw rod in sleeve pipe, and its lower end of handle that the control linkage rod moves is connected with the valve body hinge.
2, the hydraulicdirectional control valve of avoiding outer seepage according to claim 1 is characterized in that on the described linkage rod finger being installed, and the finger on the linkage rod is pegged graft with the strip dial hole on the handle and cooperated.
3, the hydraulicdirectional control valve of avoiding outer seepage according to claim 1 is characterized in that the otic placode at described linkage rod two ends is fixed with the bellows of scalable flexibility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091174 CN2833201Y (en) | 2005-06-08 | 2005-06-08 | Hydraulic reversing valve capable of avoiding external leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091174 CN2833201Y (en) | 2005-06-08 | 2005-06-08 | Hydraulic reversing valve capable of avoiding external leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2833201Y true CN2833201Y (en) | 2006-11-01 |
Family
ID=37197514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520091174 Expired - Fee Related CN2833201Y (en) | 2005-06-08 | 2005-06-08 | Hydraulic reversing valve capable of avoiding external leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2833201Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626616A (en) * | 2016-03-16 | 2016-06-01 | 无锡市华科力士水液压有限公司 | Permanent magnet type electric-hydraulic proportional pressure valve |
| CN109505817A (en) * | 2019-01-04 | 2019-03-22 | 潍坊山特液压机械有限公司 | A kind of pneumatic control hydraulic reversing valve |
| CN111089093A (en) * | 2019-12-24 | 2020-05-01 | 北京理工大学 | Energy-saving electro-hydraulic proportional direction valve with improved structure and control method thereof |
-
2005
- 2005-06-08 CN CN 200520091174 patent/CN2833201Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626616A (en) * | 2016-03-16 | 2016-06-01 | 无锡市华科力士水液压有限公司 | Permanent magnet type electric-hydraulic proportional pressure valve |
| CN109505817A (en) * | 2019-01-04 | 2019-03-22 | 潍坊山特液压机械有限公司 | A kind of pneumatic control hydraulic reversing valve |
| CN111089093A (en) * | 2019-12-24 | 2020-05-01 | 北京理工大学 | Energy-saving electro-hydraulic proportional direction valve with improved structure and control method thereof |
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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: 20061101 |