CN205618460U - Hydraulic pressure cone valve of case rear end damping pressure regulating - Google Patents
Hydraulic pressure cone valve of case rear end damping pressure regulating Download PDFInfo
- Publication number
- CN205618460U CN205618460U CN201620200966.4U CN201620200966U CN205618460U CN 205618460 U CN205618460 U CN 205618460U CN 201620200966 U CN201620200966 U CN 201620200966U CN 205618460 U CN205618460 U CN 205618460U
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- valve
- chamber
- rear end
- cone valve
- damping
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Abstract
The utility model discloses a hydraulic pressure cone valve of case rear end damping pressure regulating, radial clearance (14) is reserved with the valve body inner wall to valve barrel (8) outer wall, the valve barrel has two cavitys, and left chamber and right chamber promptly, cone valve core (2) are arranged in valve barrel (8) and is split into overflow cavity (19) and ante -chamber (18) with left chamber. Have plug (11) on the relief piston, rear end damping pressure regulating unit suppresses relief piston (6), valve barrel (8) both ends are provided with four through flow opening in two groups that are central symmetry and distribute. The utility model discloses an adding and establishing case rear end damping pressure regulating unit, the increase system damping effectively promotes cone valve stability, arrange the absorption of entry vibration of traditional cone valve or disturbance energy in the case rear end, effectively improve the produced fuel factor of traditional cone valve entry loss of pressure and to the influence of the cone valve core conical surface, effectively promote the cone valve reliability, extension awl valve life, reinforcing cone valve system parameter adaptability.
Description
Technical field
This utility model relates to hydraulic valve technical field, especially for Hydraulic Poppet Valve.
Background technology
Hydraulic Poppet Valve is widely used in all kinds of hydraulic valve system because of advantages such as strong, the good airproof performances of simple in construction, through-current capability, vibration is made it easier to yet with Normal hydraulic cone valve low resistance, causing system stability poor, the cartridge-type cone valve for big flow rate working conditions shows especially prominent.In order to overcome the problems referred to above, it is common practice that: on (1) cone valve entrance, spool or poppet valve core rear end adds damping regulator；(2) existing structure parameter is optimized.Say to a certain extent, the solution that forefathers propose can preferably solve cone valve vibration problem caused by low resistance, but yet suffer from some problems, such as: heat effect produced by (1) entrance pressure losses makes the poppet valve core conical surface overheated and deforms, increase cone valve leakage, shorten the hydraulic valve life-span, affect cone valve reliability；(2) Hydraulic Poppet Valve operating mode adaptation ability is poor.The raising required hydraulic control system along with people, proposes the Hydraulic Poppet Valve that a kind of stability is strong, life-span length, reliability are high and duty parameter is adaptable and is highly desirable to.
Utility model content
This utility model is intended to solve to a certain extent the above deficiency of prior art；Proposing the Hydraulic Poppet Valve of a kind of spool rear end damping pressure regulation, be allowed to have cone valve stability relatively strong, before valve, overheat condition is improved, and reliability is higher, and the life-span is long, and duty parameter adapts to ability and strengthens.
This utility model realizes goal of the invention technical solution:
The Hydraulic Poppet Valve of a kind of spool rear end damping pressure regulation, cone valve mechanism is placed in valve body 1 left end, and valve pocket 8 is placed in valve body, and valve pocket outer wall and valve interior wall reserve radial clearance 14；Valve pocket has two cavitys, the most left chamber and right chamber, and left chamber in poppet valve core 2 is placed in valve pocket 8 and is divided into overflow cavity 19 and ante-chamber 18；Relief piston 6 is placed in right intracavity and right chamber is divided into back cavity 16 and spring cavity 13；With screw plug 11 on relief piston, end cap 10 and pressure spring 9 suppress relief piston 6；The damping hole 17 that can link up before and after chamber it is equipped with on the next door in chamber before and after separation；Ante-chamber, damping hole, back cavity and pressure spring constitute spool rear end damping pressure regulation unit；Valve pocket 8 two ends are provided with two groups of four through flow holes of the distribution that is centrosymmetric, and wherein two through flow hole is placed in valve pocket left end and links up overflow cavity 19 and radial clearance 14；Another two through flow holes are placed in valve pocket right-hand member and link up spring cavity 13 and radial clearance 14.
Actual when implementing, other positions of Hydraulic Poppet Valve and element are arranged routinely, valve body offer into, oil return opening, axially offer built-in shoulder hole；Valve pocket axial restraint is nested with in described valve body axial hole and the most reserved radial clearance, two groups of four through flow holes of the distribution that is centrosymmetric in the processing of valve pocket two ends, causes spring cavity, overflow cavity to keep in real time with oil return opening connecting；Poppet valve core, hexagonal socket nut and relief piston are installed in valve pocket；Screwed hole is offered at valve pocket central axis；Damping hole is offered on hexagonal socket nut；Relief piston with screw plug for threadeding；Described threaded sealed by gasket seal；On described relief piston, perforate is mainly used in filling fluid and aerofluxus.
The Hydraulic Poppet Valve of a kind of spool of described utility model rear end damping pressure regulation, sets up system pressure by spool rear end damping pressure regulation unit；Described spool rear end damping pressure regulation unit includes ante-chamber, damping hole, back cavity and pressure spring；Described damping hole primarily serves the purpose of regulation system pressure and absorption system vibration or disturbance energy.
When system pressure exceedes pressure spring set pressure, poppet valve core is activated to act on and rearward movement, and the compression of ante-chamber fluid makes front cavity pressure increase, and ante-chamber produces pressure reduction with back cavity, ante-chamber fluid flows to back cavity by damping hole, promotes relief piston rearward movement and buffers eventually through pressure spring；When system pressure is less than pressure spring, back cavity fluid flows to ante-chamber, and regulation mechanism is similar to；By fluid in ante-chamber and back cavity reciprocal play and absorb the vibration of described poppet valve core or disturbance energy by damping hole, the system immediate stability of making gets off.
Accompanying drawing explanation
Fig. 1 is the Hydraulic Poppet Valve structure principle chart of a kind of spool rear end of the present utility model damping pressure regulation.
Fig. 2 is the Hydraulic Poppet Valve valve pocket sectional view of a kind of spool rear end of the present utility model damping pressure regulation.
In Fig. 1,1-valve body, 2-poppet valve core, 3-conical valve base, 4,7-sealing rings, 5-hexagonal socket nut, 6-relief piston, 8-valve pocket, 9-pressure spring, 10-end cap, 11-screw plug, 12-gasket seal, 13-spring cavity, 14-radial clearance, 15-spool rear end damping pressure regulation unit, 16-back cavity, 17-damping hole, 18-ante-chamber, 19-overflow cavity, 20-pressure chamber.
In Fig. 2,21-through flow hole, described through flow hole is two groups four and the distribution that is centrosymmetric；22-screwed hole.
Detailed description of the invention
The embodiment of described utility model is described below in detail, and the example of described embodiment is given in the accompanying drawings.The embodiment described below by accompanying drawing is exemplary, it is intended to explain this utility model.
In the description of described utility model, " orientation of the instruction such as " center ", "front", "rear", " axially ", " radially " or position relationship are based on orientation shown in the drawings or position relationship to term, are not the orientation or position indicating the structure of indication to have.
Specifically describe described utility model below in conjunction with the accompanying drawings.
The Hydraulic Poppet Valve of a kind of spool of utility model rear end damping pressure regulation, including valve body 1, poppet valve core 2, conical valve base 3, sealing ring (4 and 7), hexagonal socket nut 5, relief piston 6, valve pocket 8, pressure spring 9, end cap 10, screw plug 11 and gasket seal 12；Offer on described valve body 1 into, oil return opening, axially offer built-in shoulder hole；Described valve pocket 8 axial restraint is nested with in described valve body 1 axial hole and the most reserved radial clearance 14, two groups of four through flow holes 21 of the distribution that is centrosymmetric in the processing of valve pocket 8 two ends, causes spring cavity 3, overflow cavity 19 to keep in real time with oil return opening connecting；In described valve pocket 8, poppet valve core 2, hexagonal socket nut 5 and relief piston 6 are installed；Screwed hole 22 is offered at described valve pocket 8 central axis；Damping hole 17 is offered on described hexagonal socket nut 5；Described relief piston 6 with screw plug 11 for threadeding；Described threaded sealed by gasket seal 12；On described relief piston 6, perforate is mainly used in filling fluid and aerofluxus.
System pressure is set up by spool rear end damping pressure regulation unit 15；Spool rear end damping pressure regulation unit 15 includes ante-chamber 18, damping hole 17, back cavity 16 and pressure spring 9；Damping hole 17 primarily serves the purpose of regulation system.
When system pressure exceedes pressure spring 9 set pressure, poppet valve core 2 is activated to act on and rearward movement, the compression of ante-chamber 18 fluid makes front cavity pressure increase, (6 produce pressure reduction for ante-chamber 18 and back cavity, ante-chamber 18 fluid flows to back cavity 16 by damping hole 17, promotes relief piston 6 rearward movement and buffers eventually through pressure spring 9；When system pressure is less than pressure spring 9, back cavity 16 fluid flows to ante-chamber 18, and regulation mechanism is similar to；By fluid in ante-chamber 18 with back cavity 16 reciprocal play and absorb described poppet valve core 2 by damping hole 17 and vibrate or disturbance energy, the system immediate stability of making gets off.
Described a kind of spool rear end damping damping hole 17 diameter of Hydraulic Poppet Valve of pressure regulation, poppet valve core 2 rear end diameter, relief piston 6 diameter and pressure spring 9 rigidity should require to be determined by emulation or test according to system condition parameter and dynamic transition parameter index, and remaining parameter should require to be designed according to actual design.
By adding spool rear end damping pressure regulation unit 15, increase system damping, effectively promote cone valve stability；The absorption of tradition cone valve entrance vibration or disturbance energy is placed in spool rear end, it is effectively improved the heat effect impact on poppet valve core 2 conical surface produced by tradition cone valve entrance pressure losses, simultaneously because spool rear end damping pressure regulation unit 15 makes system pressure regulating fluid separate with described cone valve system fluid, avoid the impact of system fluid, effectively promote cone valve reliability, extend the cone valve life-span, strengthen cone valve systematic parameter and adapt to ability.
Claims (2)
1. the Hydraulic Poppet Valve of a spool rear end damping pressure regulation, it is characterised in that cone valve mechanism is placed in valve body (1) left end, and valve pocket (8) is placed in valve body, and valve pocket outer wall and valve interior wall reserve radial clearance (14)；Valve pocket has two cavitys, the most left chamber and right chamber, and left chamber in poppet valve core (2) is placed in valve pocket (8) and is divided into overflow cavity (19) and ante-chamber (18)；Relief piston (6) is placed in right intracavity and right chamber is divided into back cavity (16) and spring cavity (13)；With screw plug (11) on relief piston, end cap (10) and pressure spring (9) suppress relief piston (6)；The damping hole (17) that can link up before and after chamber it is equipped with on the next door in chamber before and after separation；Ante-chamber, damping hole, back cavity and pressure spring constitute spool rear end damping pressure regulation unit；Valve pocket (8) two ends are provided with two groups of four through flow holes of the distribution that is centrosymmetric, and wherein two through flow hole is placed in valve pocket left end and links up overflow cavity (19) and radial clearance (14)；Another two through flow holes are placed in valve pocket right-hand member and link up spring cavity (13) and radial clearance (14).
The Hydraulic Poppet Valve of a kind of spool rear end the most according to claim 1 damping pressure regulation, it is characterised in that described damping hole (17) is placed on next door by hex nut (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620200966.4U CN205618460U (en) | 2016-03-16 | 2016-03-16 | Hydraulic pressure cone valve of case rear end damping pressure regulating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620200966.4U CN205618460U (en) | 2016-03-16 | 2016-03-16 | Hydraulic pressure cone valve of case rear end damping pressure regulating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618460U true CN205618460U (en) | 2016-10-05 |
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ID=57031077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620200966.4U Expired - Fee Related CN205618460U (en) | 2016-03-16 | 2016-03-16 | Hydraulic pressure cone valve of case rear end damping pressure regulating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618460U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504202A (en) * | 2017-10-17 | 2017-12-22 | 兰州理工大学 | A kind of valve element carries the antipollution impact resistance Hydraulic Poppet Valve of throttling channel |
| CN111306123A (en) * | 2019-12-23 | 2020-06-19 | 武汉华喜特种液压设备有限公司 | Damping type safety overflow valve capable of self-aligning |
| CN113202930A (en) * | 2021-05-19 | 2021-08-03 | 同济大学 | Cavitation surge suppression cone valve based on self-adaptive elastic film air column |
-
2016
- 2016-03-16 CN CN201620200966.4U patent/CN205618460U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504202A (en) * | 2017-10-17 | 2017-12-22 | 兰州理工大学 | A kind of valve element carries the antipollution impact resistance Hydraulic Poppet Valve of throttling channel |
| CN107504202B (en) * | 2017-10-17 | 2020-04-10 | 兰州理工大学 | Anti-pollution impact-resistant hydraulic cone valve with throttling groove on valve core |
| CN111306123A (en) * | 2019-12-23 | 2020-06-19 | 武汉华喜特种液压设备有限公司 | Damping type safety overflow valve capable of self-aligning |
| CN113202930A (en) * | 2021-05-19 | 2021-08-03 | 同济大学 | Cavitation surge suppression cone valve based on self-adaptive elastic film air column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20190316 |