CN102937203A - Pressure stabilizer applied to hydraulic coupler oil-way system - Google Patents
Pressure stabilizer applied to hydraulic coupler oil-way system Download PDFInfo
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- CN102937203A CN102937203A CN2012104543597A CN201210454359A CN102937203A CN 102937203 A CN102937203 A CN 102937203A CN 2012104543597 A CN2012104543597 A CN 2012104543597A CN 201210454359 A CN201210454359 A CN 201210454359A CN 102937203 A CN102937203 A CN 102937203A
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- pressure
- oil
- spool
- valve seat
- way system
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Abstract
The invention provides a pressure stabilizer applied to a hydraulic coupler oil-way system. The pressure stabilizer comprises an overflow valve seat, wherein an overflow pipe is in sealing connection with the overflow valve seat and provided with an oil inlet and an oil outlet. A valve core is slidably arranged inside the overflow valve seat, an adjustment positioning block is coaxially arranged at one end of the valve core, a pressure adjusting spring is arranged on a mandrel between the valve core and the adjustment positioning block, and an overflow valve cover is arranged at the other end of the valve core and connected with the overflow valve seat. The pressure stabilizer applied to the hydraulic coupler oil-way system overcomes the shortcomings in the prior art, directly utilizes spring force and pressure of the oil inlet to achieve balance and pressure control. If the valve core is opened normally, the system pressure is basically constant. When a speed-adjusting type hydraulic coupler is in operation and a spoon tube is located at 100% right position, a working cavity is full of oil, a speed-adjusting range is large, and noise is small.
Description
Technical field
The present invention relates to a kind of stable-pressure device that is applied in the fluid coupling oil-way system, belong to fluid coupling oil-way system technical field.
Background technique
Existingly be applied to pressure protective device in the fluid coupling oil-way system when system oil pressure raises, the spool against the force of the spring, level is moved to the left, by opening the hole on spool, with the release of manifold pressure oil.But owing to do not determine the active force of spring, spool is stressed not steady.Existing technology can not make the oil pressure of system stable, causes in the running of fluid coupling, and scoop tube is just entirely oil-filled when 20%～30% position, can not speed governing, and noise is large.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of system pressure that can make that is applied in the fluid coupling oil-way system and substantially keeps homeostasis, speed adjustable range is large and noise is little stable-pressure device.
In order to solve the problems of the technologies described above, technological scheme of the present invention provides a kind of stable-pressure device that is applied in the fluid coupling oil-way system, it is characterized in that: comprise relief valve seat, spill pipe and relief valve seat are tightly connected and are provided with filler opening and oil outlet; Spool is located at relief valve seat inside slidably, regulates positioning block with an end that is located in spool, and pressure adjusting spring is located at spool and is regulated on the axle between the positioning block, and relief valve is covered on the other end of spool and is connected with relief valve seat.
Preferably, described spool is provided with radial hole and damping hole.
A kind of pressure adjusting spring, spool, adjusting positioning block that is applied to the stable-pressure device in the fluid coupling oil-way system provided by the invention forms the pressure adjusting spring assembly parts, play overflow, level pressure effect, regulate positioning block and can change the impacting force of pressure adjusting spring, thereby control the pressure of hydraulic system of working.Because the variation of inertia and external load, system pressure still can change, and spool fluctuates under the effect of system pressure and spring force, and system pressure is controlled near the set pressure.
Device provided by the invention has overcome the deficiencies in the prior art, directly utilizes the pressure of spring force and filler opening to balance each other, and carries out pressure control.Often open such as spool, system pressure is the basic homeostasis that keeps just; In the variable speed fluid coupling running, scoop tube is realized entirely oil-filled when 100% position in the active chamber, and speed adjustable range is large, and noise is little.
Description of drawings
Fig. 1 is a kind of stable-pressure device schematic representation that is applied in the fluid coupling oil-way system provided by the invention;
Fig. 2 is pressure adjusting spring assembly parts working drawing in the present embodiment;
Fig. 3 is that a kind of pressure protective device that is applied in the fluid coupling oil-way system provided by the invention uses phase diagram;
Description of reference numerals
The 1-relief valve seat; 2-regulates positioning block; The 3-pressure adjusting spring; The 4-spool; The 4-1-radial hole; The 4-2-damping hole; The 5-spill pipe; 6-overflow valve gap; The 7-filler opening; The 8-oil outlet; The 9-casing.
Embodiment
For the present invention is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.
Fig. 1 is a kind of stable-pressure device schematic representation that is applied in the fluid coupling oil-way system provided by the invention, and described a kind of stable-pressure device that is applied in the fluid coupling oil-way system comprises relief valve seat 1, regulates positioning block 2, pressure adjusting spring 3, spool 4, spill pipe 5, overflow valve gap 6.Spill pipe 5 is tightly connected with relief valve seat 1, has filler opening 7, oil outlet 8; Spool 4 is in relief valve seat 1 interior slip, and along with oil pressure raises, spool 4 is opened, that is: filler opening 7, oil outlet 8 communicate.Regulate positioning block 2 coaxial ends that are contained in spool 4, pressure adjusting spring 3 is enclosed within spool 4 and regulates on the axle between the positioning block 2, and overflow valve gap 6 is contained in the other end of spool 4 and screws with relief valve seat 1.Calculate according to spool stress balance equation, have radial hole 4-1 and damping hole 4-2 on the spool 4, can reduce the vibration of spool 4 and pressure adjusting spring 3.
The directed force F of pressure adjusting spring 3 determines that according to the pressure p of oil-way system the decrement h of pressure adjusting spring 3 is determined by directed force F and the rigidity P ' of pressure regulation bullet 3; Adjusting positioning block 2 can change the impacting force of pressure adjusting spring 3, thus the pressure of regulator solution pressing system.
In conjunction with Fig. 2, pressure adjusting spring 3, spool 4, adjusting positioning block 2 form the pressure adjusting spring assembly parties, are critical components of the present invention, play overflow, level pressure effect.Be directly to utilize the directed force F of pressure adjusting spring 3 and the pressure p of oil-feed to balance each other, carry out pressure control.Because the variation of inertia and external load, system pressure p still can change, and spool 4 fluctuates under the effect of system pressure p and spring force F, makes system pressure p be controlled at set pressure p
Open, p
TransferNear.
Cracking pressure p
Open, set pressure p
TransferDetermine: according to system pressure p, determine the cracking pressure p of stable-pressure device
Open, set pressure p
Transferp
TransferAnd p
OpenDifference be the stable state override pressure, deviation is less, stability better.
Pressure adjusting spring is set up power F
Open, F
TransferDetermine: according to the equilibrium principle of spring force and hydraulic coupling, set up spool stress balance equation: F
Open=p
OpenA or F
Transfer=p
TransferA (deadweight and the frictional force of spool are disregarded), wherein:
The setting power (N) of F-pressure adjusting spring 3;
P-acts on the set pressure (N/mm on the spool 4
2);
Effective active area (the mm of A-spool 4 ends
2).
According to cracking pressure p
Open, set pressure p
Transfer, calculate respectively the setting power F of pressure adjusting spring 3
Open, F
Transfer
Pressure adjusting spring decrement h determines: according to the setting power F of pressure adjusting spring
Open, F
TransferAnd spring rate P ' (N/mm), respectively by h (mm)=F/P ', determines the decrement h of pressure adjusting spring
1, h
2The decrement h of pressure adjusting spring changes less, pressure stability of the present invention better, the spring rate P ' of the pressure adjusting spring 3 of requirement wants enough greatly.
In conjunction with Fig. 3, during use, a kind of pressure protective device that is applied in the fluid coupling oil-way system provided by the invention is installed on the casing 9.When the coupler running, in the hydraulic system of oil pump feed, system pressure oil p is during greater than the set pressure of stable-pressure device, fluid enters relief valve seat 1 through the filler opening 7 of spill pipe 5, and by behind the radial hole 4-1 on the spool 4, act on spool 4 ends, the bearing area of spool 3 ends is A, as end hydraulic coupling p
OpenOvercome spring force F
OpenThe time, spool 4 moves to left, valve port is opened, with unnecessary oil through oil outlet 8 casing 9 that overflows back, the decrement h of the pressure adjusting spring 3 of this moment
1Less, fluid is opened the pressure p of valve port
OpenLess, claim cracking pressure.When spillway discharge increased, spool 4 moved to left again, and valve port increases, and when whole flows overflow back casing 9 from oil outlet 8, spool 4 moved maximum, the decrement h of pressure adjusting spring 3
2Increase, act on the pressure p of spool 4
Transfer, claim to adjust pressure.p
TransferAnd p
OpenDifference be the stable state override pressure, deviation is less, stability better.
The present invention is a kind of stable-pressure device that is installed on the fluid coupling, and along with the running speed of fluid coupling is different, required flow is also different, and the spillway discharge of stable-pressure device also changes thereupon.The present invention can utilize the directed force F of pressure adjusting spring 3 and the pressure p of oil-feed to balance each other, and carries out pressure control, makes system pressure keep homeostasis.
Claims (2)
1. stable-pressure device that is applied in the fluid coupling oil-way system is characterized in that: comprise relief valve seat (1), spill pipe (5) is tightly connected with relief valve seat (1) and is provided with filler opening (7) and oil outlet (8); Spool (4) is located at relief valve seat (1) inside slidably, regulate positioning block (2) with an end that is located in spool (4), pressure adjusting spring (3) is located at spool (4) and is regulated on the axle between the positioning block (2), and overflow valve gap (6) is located at the other end of spool (4) and is connected with relief valve seat (1).
2. a kind of stable-pressure device that is applied in the fluid coupling oil-way system as claimed in claim 1, it is characterized in that: described spool (4) is provided with radial hole (4-1) and damping hole (4-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104543597A CN102937203A (en) | 2012-11-13 | 2012-11-13 | Pressure stabilizer applied to hydraulic coupler oil-way system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104543597A CN102937203A (en) | 2012-11-13 | 2012-11-13 | Pressure stabilizer applied to hydraulic coupler oil-way system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102937203A true CN102937203A (en) | 2013-02-20 |
Family
ID=47696117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104543597A Pending CN102937203A (en) | 2012-11-13 | 2012-11-13 | Pressure stabilizer applied to hydraulic coupler oil-way system |
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| Country | Link |
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| CN (1) | CN102937203A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286925A (en) * | 2016-08-17 | 2017-01-04 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of novel voltage stabilizing overflow valve |
| CN106769018A (en) * | 2017-01-03 | 2017-05-31 | 中国船舶重工集团公司第七研究所 | A kind of chamber of fluid-flywheel clutch |
| CN107420538A (en) * | 2017-05-17 | 2017-12-01 | 盛瑞传动股份有限公司 | A kind of fluid torque-converter controls oil circuit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04277386A (en) * | 1990-12-13 | 1992-10-02 | Carl Freudenberg:Fa | Pressure-compensating adjust valve |
| JP2002213641A (en) * | 2001-01-19 | 2002-07-31 | Mitsubishi Heavy Ind Ltd | Pressure regulating valve |
| CN1786533A (en) * | 2004-12-08 | 2006-06-14 | 刘敬善 | Stabilivolt type pressure reducer |
| CN201232785Y (en) * | 2008-05-08 | 2009-05-06 | 周重威 | Ultra-high pressure overflow valve |
| CN201610966U (en) * | 2010-03-01 | 2010-10-20 | 上海交大南洋机电科技有限公司 | Pressure protecting device on oil channel of liquid coupling |
| CN201651474U (en) * | 2010-03-22 | 2010-11-24 | 广东万和新电气股份有限公司 | Constant pressure valve |
| CN202209456U (en) * | 2011-09-01 | 2012-05-02 | 山东弘宇机械有限公司 | Differential type safety valve |
| CN202901428U (en) * | 2012-11-13 | 2013-04-24 | 上海交大南洋机电科技有限公司 | Pressure regulator used in oil system of fluid coupling |
-
2012
- 2012-11-13 CN CN2012104543597A patent/CN102937203A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04277386A (en) * | 1990-12-13 | 1992-10-02 | Carl Freudenberg:Fa | Pressure-compensating adjust valve |
| JP2002213641A (en) * | 2001-01-19 | 2002-07-31 | Mitsubishi Heavy Ind Ltd | Pressure regulating valve |
| CN1786533A (en) * | 2004-12-08 | 2006-06-14 | 刘敬善 | Stabilivolt type pressure reducer |
| CN201232785Y (en) * | 2008-05-08 | 2009-05-06 | 周重威 | Ultra-high pressure overflow valve |
| CN201610966U (en) * | 2010-03-01 | 2010-10-20 | 上海交大南洋机电科技有限公司 | Pressure protecting device on oil channel of liquid coupling |
| CN201651474U (en) * | 2010-03-22 | 2010-11-24 | 广东万和新电气股份有限公司 | Constant pressure valve |
| CN202209456U (en) * | 2011-09-01 | 2012-05-02 | 山东弘宇机械有限公司 | Differential type safety valve |
| CN202901428U (en) * | 2012-11-13 | 2013-04-24 | 上海交大南洋机电科技有限公司 | Pressure regulator used in oil system of fluid coupling |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286925A (en) * | 2016-08-17 | 2017-01-04 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of novel voltage stabilizing overflow valve |
| CN106286925B (en) * | 2016-08-17 | 2018-11-16 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of novel voltage stabilizing overflow valve |
| CN106769018A (en) * | 2017-01-03 | 2017-05-31 | 中国船舶重工集团公司第七研究所 | A kind of chamber of fluid-flywheel clutch |
| CN106769018B (en) * | 2017-01-03 | 2023-08-15 | 中国船舶集团有限公司第七一一研究所 | Test box of hydraulic coupler |
| CN107420538A (en) * | 2017-05-17 | 2017-12-01 | 盛瑞传动股份有限公司 | A kind of fluid torque-converter controls oil circuit |
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Application publication date: 20130220 |