CN205243998U - Hydraulic system and switching -over valve - Google Patents
Hydraulic system and switching -over valve Download PDFInfo
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- CN205243998U CN205243998U CN201521073669.XU CN201521073669U CN205243998U CN 205243998 U CN205243998 U CN 205243998U CN 201521073669 U CN201521073669 U CN 201521073669U CN 205243998 U CN205243998 U CN 205243998U
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- ball sealer
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- reversal valve
- passage
- valve
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Abstract
The utility model discloses a switching -over valve, including the casing that is provided with an actuator port, the 2nd actuator port and oil inlet, the casing is inside to be provided with hollow disk seat, is provided with first passageway, second channel and oil feed passageway on the disk seat, and first passageway and second channel are the inward bell mouth of main aspects, and the tip diameter of bell mouth is lighter than the diameter of ball sealer, and the ball sealer can get into the main aspects of bell mouth to make the ball sealer paste the inboard of tight bell mouth. Avoid because the dimensional change that leads to of environmental change and problem that the fit clearance that produces changes, so prevent wearing and tearing, the card is died or phenomenon such as jamming, avoids causing and leaks and loss of pressure, guarantees the normal use of switching -over valve, improves the suitability of the valve that commutates, can be applicable to the highly compressed environment of high temperature. The utility model also discloses a hydraulic system of including above -mentioned switching -over valve.
Description
Technical field
The utility model relates to Hydraulic Field, particularly relates to a kind of reversal valve. In addition this reality,Also relate to a kind of hydraulic system that comprises above-mentioned reversal valve with novel.
Background technology
Reversal valve is widely used in hydraulic system, is installed in oil circuit, can realizeThe switching of oil circuit. In the prior art, reversal valve has oil-in, the first actuator port andTwo actuator ports, inside has valve seat, the first push rod and the second push rod, and valve seat inside is provided withBall sealer, the first push rod and the second push rod can promote ball sealer, make the first actuator port sealing,The second actuator port is communicated with oil-in, or makes the second actuator port sealing, the first actuator portBe communicated with oil-in, and then realize the switching of different oil circuits.
For example, but owing to being subject to the impact of working environment, dielectric viscosity, temperature and pressure change,All can make the size of each parts change, particularly the variation of ball sealer and valve seat can make originallyFit clearance change, cause phenomenons such as occurring wearing and tearing, stuck or clamping stagnation, cause and leak and pressPower loss, affects the normal use of reversal valve.
Therefore, how to provide a kind of can prevent because of environmental change produce fit clearance changeReversal valve is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of reversal valve, can prevent from producing because of environmental changeRaw fit clearance changes, and prevents from revealing and the pressure loss. Another object of the present utility model is to carryFor a kind of hydraulic system that comprises above-mentioned reversal valve, can prevent from producing cooperation because of environmental changeGap changes, and prevents from revealing and the pressure loss.
For solving the problems of the technologies described above, the utility model provides a kind of reversal valve, comprises and being provided withThe housing of the first actuator port, the second actuator port and oil-in, described enclosure interior is provided withThe valve seat of hollow, is provided with first passage, second channel and oil inlet passage on described valve seat, useBe communicated with respectively described the first actuator port, described the second actuator port and institute in described valve seat insideState oil-in, described valve seat inside is provided with for sealing described first passage or sealing describedThe ball sealer of two passages, described enclosure interior is provided with for promoting described ball sealer to describedThe first push rod that two passages move and described ball sealer moves to described first passage for promotingThe second push rod, described first passage and described second channel are the inside bellmouth of large end, instituteThe end diameter of stating bellmouth is less than the diameter of described ball sealer, and described ball sealer can enter instituteState the large end of bellmouth, and make described ball sealer be adjacent to the inner side of described bellmouth.
Preferably, described first passage and described second channel are oppositely arranged and dead in line, instituteState oil inlet passage perpendicular to described first passage.
Preferably, described the first push rod contacts with described ball sealer through described first passage, instituteStating the second push rod contacts with described ball sealer through described second channel.
Preferably, described valve seat comprises the first valve seat lid and the second valve flap that are tightly connected, instituteState first passage and be arranged at described the first valve seat lid, described second channel is arranged at described second valveFlap.
Preferably, described housing is provided with electromagnetic wire away from one end of described the first actuator portCircle, is provided with the armature that can move to described housing in described solenoid, described the second topBar connects described armature away from one end of described ball sealer, also comprises for promoting described the first topThe elastic component that bar moves to described ball sealer.
Preferably, described housing periphery is provided with sealing ring.
Preferably, described valve seat is specially elastic seat that can enlarge active surface.
Preferably, described elastic seat is specially rubber valve seat or engineering plastics valve seat.
The utility model provides a kind of hydraulic system, comprises reversal valve, and described reversal valve is speciallyReversal valve described in above-mentioned any one.
Preferably, described hydraulic system is specially oil pipe cutting tool hydraulic system.
The reversal valve that the utility model provides, comprises the first actuator port, the second work of being provided withThe housing of hydraulic fluid port and oil-in, enclosure interior is provided with the valve seat of hollow, is provided with on valve seatOne passage, second channel and oil inlet passage, for valve seat inside be communicated with respectively the first actuator port,The second actuator port and oil-in, valve seat inside is provided with for sealing first passage or sealing theThe ball sealer of two passages, enclosure interior is provided with that ball sealer moves to second channel for promotingThe first push rod and the second push rod moving to first passage for promoting ball sealer, first passage andSecond channel is the inside bellmouth of large end, and the end diameter of bellmouth is less than the straight of ball sealerFootpath, ball sealer can enter the large end of bellmouth, and makes ball sealer be adjacent to the inner side of bellmouth.
When make the fit clearance of ball sealer and first passage or second channel due to environmental changeWhile becoming large, push rod can promote ball sealer to passage movement, due to the architectural characteristic of bellmouth,Ball sealer can be larger with bellmouth diameter of section position contact, ball sealer and passage still canEnough closely cooperate, ensure sealing; When make due to environmental change ball sealer and first passage orWhen the fit clearance of second channel diminishes, due to the architectural characteristic of bellmouth, ball sealer can with coneThe position contact that shape hole diameter of section is less, still can closely cooperate ball sealer and passage,Prevent damage parts. By the way, avoid the change in size that causes due to environmental change andThe problem that the fit clearance producing changes, and then prevent the phenomenons such as wearing and tearing, stuck or clamping stagnation,Avoid causing and leak and the pressure loss, ensure the normal use of reversal valve, improve the suitable of reversal valveBy property, can be applicable to the environment of HTHP.
The hydraulic system that the utility model provides comprises above-mentioned reversal valve, due to above-mentioned reversal valve toolHave above-mentioned technique effect, above-mentioned hydraulic system also should have identical technique effect, at this no longerIntroduce in detail.
Brief description of the drawings
Fig. 1 is that the structure of a kind of detailed description of the invention of reversal valve provided by the utility model is shownIntention.
Detailed description of the invention
Core of the present utility model is to provide a kind of reversal valve, can prevent from producing because of environmental changeRaw fit clearance changes, and prevents from revealing and the pressure loss. Another core of the present utility model is to carryFor a kind of hydraulic system that comprises above-mentioned reversal valve, can prevent from producing cooperation because of environmental changeGap changes, and prevents from revealing and the pressure loss.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction withThe utility model is described in further detail for the drawings and specific embodiments.
Please refer to Fig. 1, the one that Fig. 1 is reversal valve provided by the utility model is specifically implementedThe structural representation of mode.
The reversal valve that the utility model detailed description of the invention provides, comprises housing 1, on housing, establishesBe equipped with the first actuator port A, the second actuator port B and oil inlet P, housing 1 is inner to be arrangedThere is the valve seat of hollow, on valve seat, be provided with first passage, second channel and oil inlet passage, firstThe inside of channel connection the first actuator port A and valve seat, second channel is communicated with the second actuator portThe inside of B and valve seat, oil inlet passage is communicated with the inside of oil inlet P and valve seat. Establish valve seat insideBe equipped with ball sealer 17, wherein first passage and second channel are the inside bellmouth of large end, coneThe end diameter in shape hole is less than the diameter of ball sealer 17, and ball sealer 17 can enter bellmouthLarge end, and make ball sealer 17 be adjacent to the inner side of bellmouth. Housing 1 inside is provided with the first push rod5 and second push rod 2, the first push rods 2 can promote ball sealer 17 and enter second channel, secondPush rod 5 can promote ball sealer 17 and enter first passage. For ball sealer 17 is positioned over to valveIn seat, valve seat can be divided into two parts, be the first valve seat lid 3 and the second valve seat that are tightly connectedLid 4, first passage is arranged at the first valve seat lid 3, and second channel is arranged at second valve flap 4.
Promote ball sealer 17 and enter after second channel, be equivalent to the second actuator port B and valve seatInner sealing is isolated, and now the first actuator port A is communicated with the inside of valve seat, and oil inlet P is communicated withThe inside of valve seat, makes the first actuator port A be communicated with oil inlet P; Or promotion ball sealer 17Enter after first passage, being equivalent to first, to make hydraulic fluid port A and valve seat inner sealing isolated, and now theTwo actuator port B are communicated with the inside of valve seat, and oil inlet P is communicated with the inside of valve seat, makes the second workMake hydraulic fluid port B and be communicated with oil inlet P, and then realize the switching of oil circuit.
When making due to environmental change between the coordinating of ball sealer 17 and first passage or second channelWhen gap becomes large, push rod can promote ball sealer 17 to passage movement, due to the structure of bellmouthCharacteristic, ball sealer 17 can contact the position larger with bellmouth diameter of section, makes ball sealer 17Still can closely cooperate with passage, ensure sealing; When because environmental change makes ball sealer17 when diminish with the fit clearance of first passage or second channel, due to the structure spy of bellmouthProperty, ball sealer 17 can contact the positions less with bellmouth diameter of section, make ball sealer 17 andPassage still can closely cooperate, and prevents damage parts. By the way, avoid due to ringBorder changes the change in size causing and the problem of the fit clearance producing variation, and then preventsThe phenomenons such as wearing and tearing, stuck or clamping stagnation, avoid causing and leak and the pressure loss, ensures reversal valveNormal use, improves the applicability of reversal valve, can be applicable to the environment of HTHP.
In the reversal valve providing in the utility model detailed description of the invention, first passage and second leads toRoad is oppositely arranged and dead in line, and oil inlet passage is perpendicular to first passage. Particularly, the first topBar 5 contacts with ball sealer 17 through first passage, and the second push rod 2 is through second channel and sealingBall 17 contacts, and push rod can not affect the turnover of hydraulic oil. Form the oil circuit of orthoscopic, ensure liquidForce feed flows smooth and easy, also can, according to the difference of mounting means, first passage and second channel be establishedBe placed in the same side, all within protection domain of the present utility model.
Reversal valve has multiple control modes, can be solenoid directional control valve, at housing 1 away fromOne end of one actuator port A is provided with gland 12, is provided with solenoid 13 in gland 12,In solenoid 13, be provided with guide cylinder 11, in guide cylinder 11, be provided with and can move to housing 1Moving armature 9, is provided with back-moving spring 10, the second push rods 2 between armature 9 and guide cylinder 11One end away from ball sealer 17 connects armature 9. The other end of housing 1 is provided with guide holder 8,The first push rod 5 is arranged in guide holder 8, is also provided with pad 7, at pad 7 in guide holder 8And first be also provided with elastic component 6 between push rod 5. Particularly, elastic component 6 is spring, bulletSpring is set in the first push rod 5, and the two ends of spring respectively with pad 7 and the first push rod 5 endsOffset. Spring is as common part, simple and easy to get, also can adopt the elastic component 6 of other types,All within protection domain of the present utility model.
In the time that solenoid 13 passes into 12V direct current, now housing 1 and armature 9 inhale mutually fromAnd promote the second push rod 2, ball sealer 17 is entered to first passage sealing, make oil inlet PCommunicate with the second actuator port B. In the time that magnetic valve needs working position to switch, carry out power operation,Under the effect of elastic component 6, promote the first push rod 5 ball sealer 17 is entered to second channel closeEnvelope, communicates oil inlet P and the first actuator port A. Solenoid directional control valve control is accurate, ringsShould be rapid, also can according to circumstances adjust the position of solenoid 13 and elastic component 6, or by establishingPut hydraulic control unit and form pilot operated directional control valve, all within protection domain of the present utility model.
In order to ensure the sealing of hydraulic system, and housing 1 need to be tightly connected with miscellaneous part,Can sealing ring 16 be set in housing 1 periphery, also can be according to the difference of connected mode, also can be by closeSeal 17 is arranged at housing 1 inside, all within protection domain of the present utility model. Simultaneously canThe first net-filter assembly 14 to be set at the first actuator port A place, arrange at oil inlet P place intoOil screen assembly 15, prevents that impurity from entering reversal valve.
On the basis of the reversal valve providing in above-mentioned each detailed description of the invention, valve seat can be canThe elastic seat of enlarge active surface can be resistant to elevated temperatures rubber valve seat or engineering plastic particularlyMaterial valve seat, can be out of shape enlarge active surface and joining with ball sealer 17 perfections under pressureClose, also can adopt resin valve seat, all within protection domain of the present utility model. Miscellaneous partCan adopt the stainless steel of high-temperature corrosion resistance, make reversal valve can bear the working environment of HTHP.
Except above-mentioned reversal valve, detailed description of the invention of the present utility model also provides one to compriseState the hydraulic system of reversal valve, the structure of these other each several parts of hydraulic system please refer to prior art,Repeat no more herein.
Particularly, above-mentioned hydraulic system can be oil pipe cutting tool hydraulic system.
Above hydraulic system provided by the utility model and reversal valve are described in detail.Apply specific case herein principle of the present utility model and embodiment set forth,The explanation of above embodiment is just for helping to understand method of the present utility model and core think of thereofThink. It should be pointed out that for those skilled in the art, do not departing from this realityUnder prerequisite with new principle, can also carry out some improvement and modification to the utility model, thisA little improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a reversal valve, comprises and is provided with the first actuator port (A), the second actuator port(B) and the housing (1) of oil-in (P), described housing (1) inside is provided with hollowValve seat, is provided with first passage, second channel and oil inlet passage on described valve seat, for describedValve seat inside is communicated with respectively described the first actuator port (A), described the second actuator port (B)With described oil-in (P), described valve seat inside is provided with for sealing described first passage or closeSeal the ball sealer (17) of described second channel, described housing (1) inside is provided with for promotingThe first push rod (5) that described ball sealer (17) moves to described second channel and for promotingState the second push rod (2) that ball sealer (17) moves to described first passage, it is characterized in that,Described first passage and described second channel are the inside bellmouth of large end, described bellmouthEnd diameter is less than the diameter of described ball sealer (17), and described ball sealer (17) can enterThe large end of described bellmouth, and make described ball sealer (17) be adjacent to the inner side of described bellmouth.
2. reversal valve according to claim 1, is characterized in that, described first passageBe oppositely arranged and dead in line with described second channel, described oil inlet passage is perpendicular to described firstPassage.
3. reversal valve according to claim 2, is characterized in that, described the first push rod(5) contact described the second push rod (2) with described ball sealer (17) through described first passageContact with described ball sealer (17) through described second channel.
4. reversal valve according to claim 3, is characterized in that, described valve seat comprisesThe the first valve seat lid (3) and the second valve flap (4) that are tightly connected, described first passage is arranged atDescribed the first valve seat lid (3), described second channel is arranged at described second valve flap (4).
5. reversal valve according to claim 1, is characterized in that, described housing (1)Be provided with solenoid (13), described electromagnetism away from one end of described the first actuator port (A)In coil (13), being provided with can be to the mobile armature (9) of described housing (1), described secondPush rod (2) connects described armature (9) away from one end of described ball sealer (17), also comprises useIn promoting described the first push rod (5) to the mobile elastic component (6) of described ball sealer (17).
6. reversal valve according to claim 1, is characterized in that, described housing (1)Periphery is provided with sealing ring (16).
7. according to the reversal valve described in claim 1 to 6 any one, it is characterized in that,Described valve seat is specially elastic seat that can enlarge active surface.
8. reversal valve according to claim 7, is characterized in that, described elastic seatBe specially rubber valve seat or engineering plastics valve seat.
9. a hydraulic system, comprises reversal valve, it is characterized in that, described reversal valve is concreteFor the reversal valve described in claim 1 to 8 any one.
10. hydraulic system according to claim 9, is characterized in that, described hydraulic pressure systemSystem is specially oil pipe cutting tool hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521073669.XU CN205243998U (en) | 2015-12-21 | 2015-12-21 | Hydraulic system and switching -over valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521073669.XU CN205243998U (en) | 2015-12-21 | 2015-12-21 | Hydraulic system and switching -over valve |
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| Publication Number | Publication Date |
|---|---|
| CN205243998U true CN205243998U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521073669.XU Active CN205243998U (en) | 2015-12-21 | 2015-12-21 | Hydraulic system and switching -over valve |
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| CN (1) | CN205243998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035936A (en) * | 2018-01-04 | 2018-05-15 | 广东顺德普南气动科技有限公司 | Press from both sides diaphragm circular cylinder |
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2015
- 2015-12-21 CN CN201521073669.XU patent/CN205243998U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035936A (en) * | 2018-01-04 | 2018-05-15 | 广东顺德普南气动科技有限公司 | Press from both sides diaphragm circular cylinder |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 611130 Changan Road, Liucheng, Wenjiang District, Chengdu, Sichuan Province, No. 198 Patentee after: Sichuan Aerospace beacon Servo Control Technology Co., Ltd. Address before: 611100 Liucheng Road, Wenjiang, Sichuan, No. Changan Road, No. 198 Patentee before: Fenghuo Machine Works of China Aerospace Science and Technology Corporation |