CN108775428A - A kind of check valve and control method for Retarder oil outlet - Google Patents
A kind of check valve and control method for Retarder oil outlet Download PDFInfo
- Publication number
- CN108775428A CN108775428A CN201810630747.3A CN201810630747A CN108775428A CN 108775428 A CN108775428 A CN 108775428A CN 201810630747 A CN201810630747 A CN 201810630747A CN 108775428 A CN108775428 A CN 108775428A
- Authority
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- China
- Prior art keywords
- valve
- oil
- retarder
- oil outlet
- check valve
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 7
- 239000012530 fluid Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 4
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 68
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000580063 Ipomopsis rubra Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/06—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a pump circulating fluid, braking being effected by throttling of the circulation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
本发明公开了一种用于液力缓速器出油口的单向阀，其设置在液力缓速器的热交换器和工作腔之间，可以协助液力缓速器根据工作状态的不同切换不同油路，从而解决液力缓速器空转润滑不畅的问题，同时能够调节液力缓速器的制动扭矩，使液力缓速器的性能更加完善，提高提高液力缓速器的使用寿命。
The invention discloses a one-way valve used for the oil outlet of a hydraulic retarder, which is arranged between the heat exchanger and the working chamber of the hydraulic retarder, and can assist the hydraulic retarder to adjust according to the working state. Different oil circuits can be switched to solve the problem of poor lubrication during idling of the hydraulic retarder. At the same time, the braking torque of the hydraulic retarder can be adjusted to improve the performance of the hydraulic retarder and improve the hydraulic retarder. service life of the device.
Description
Technical field
The present invention relates to automobile braking field, specially a kind of check valves and control for Retarder oil outlet
Method.
Background technology
Retarder is used for the vehicle larger to quality in high speed or descending as a kind of complemental brake system of vehicle
When auxiliary braking is provided, brake number of the truck in descending can be efficiently reduced, reduce the abrasion of brake block, effectively reduce
The temperature of vehicle hub for vehicle wheel under steam reduces the probability that accident occurs, is favored by vast main engine plants and user.
Retarder is cascaded with car transmission device, and when without using retarder, truck is run at high speed, transmission
When rotating speed is excessively high, retarder is in idling conditions, at this time if when itself idle lubrication system of taking a breath is to shortage of oil, easily occurs
The unsmooth problem of idle lubrication is found in actual use in Retarder, if when retarder is for a long time in idle running
When state, easily there is the unsmooth phenomenon of idle lubrication, oil sealing damage, bearing sintering is led to problems such as to occur.Therefore, fluid is slow
Different oil circuits are walked when fast device work from idle running：Working oil path requires retarder that can generate braking torque, and it is oily to dally
Road requires retarder to have preferable idle lubrication effect.
Problem in view of the prior art, it is necessary to design a kind of check valve for Retarder oil outlet, into
Row retarder switches with oil circuit when idle running at work.
Invention content
For problems of the prior art, the present invention provides a kind of check valve for Retarder oil outlet,
It is arranged between the heat exchanger and working chamber of Retarder, Retarder can be assisted to cut lubricant effect in idle running
Better dummy cycle oil circuit, solves the problems, such as that Retarder idle lubrication is unsmooth；Retarder can be adjusted simultaneously
Braking torque keeps the performance of Retarder more perfect.
The present invention is to be achieved through the following technical solutions：
A kind of check valve for Retarder oil outlet, including valve body, valve seat and valve rod；The oil inlet of valve body and heat
Exchanger connects, and the oil inlet of valve body is connect with working chamber, oil outlet is provided on the side wall of valve body, valve seat is arranged in valve body
Lower end, valve rod are arranged in the inside of valve body, and valve rod is used for the oil inlet of opening and closing of fault valve body, is provided between valve rod and valve seat
Spring.
Preferably, the upper end of the valve body is provided with valve deck, and valve body is connected by the shell of valve deck and heat exchanger.
Preferably, the oil inlet of the valve deck is provided with arc angling.
Preferably, the quantity of the oil outlet is multiple, and multiple oil outlet circumference uniform distributions are on body wall.
Preferably, multiple oil outlets are provided on the valve deck.
Preferably, the valve rod includes cylinder and head cover, and on cylinder, head cover is arranged at the top of cylinder spring pocket.
Preferably, the valve seat is provided centrally with location hole, the cylinder be arranged in location hole and can on move down
It is dynamic.
Preferably, it is coated with rubber layer on the top plate.
Preferably, the valve body is connected with valve seat using interference fit, and laser welding.
The present invention also provides a kind of control methods of the check valve.
When Retarder is in idling conditions, valve rod closes the oil inlet of check valve, and fluid is located in oil sump shell,
Rotor idle running in working chamber generates negative pressure, and a small amount of fluid in oil sump shell is sucked by dummy cycle oil circuit road in working chamber
Oil sealing and bearing are lubricated；
When Retarder is in running order, oil liquid pressure increases, and valve rod opens the oil inlet of check valve, fluid
Enter working chamber by heat exchanger and generates torque.
Compared with prior art, the present invention has technique effect beneficial below：
Retarder oil outlet check valve can switch oil circuit according to retarder working condition：Work as hydrodynamic retarding
When device is in idling conditions, due to oil liquid pressure very little, oil outlet closed check valve, fluid can not be directly entered working chamber, oil
Liquid returns to oil sump shell, and the rotor idle running worked at the same time in chamber generates negative pressure, by a small amount of oil in oil sump shell under the action of negative pressure
Liquid by dummy cycle oil circuit road suck working chamber in, fluid on Retarder oil sealing and bearing be lubricated, improve
The service life of Retarder.
There is the oil outlet of larger area directly to be communicated with working chamber in valve body side simultaneously, the list surrounded entirely compared to side
To valve, it is ensured that fluid more quickly by check valve, shortens the response time of Retarder.Oil inlet and oil outlet
Rectangular formula arrangement, the overcurrent pressure loss caused by oil outlet throttling action when reducing through type arrangement, and make Retarder
Overall structure is more compact.
It is connected by the shell of valve deck and heat exchanger, valve body is in working chamber side, is conducive to hand over for the relatively narrow heat of oil duct
Parallel operation connecting plate vacates the space of bigger, can effectively prevent fluid and dead zone occurs and cause oil liquid pressure excessive, torque is steep
It rises.
At the rounded corner that radian is larger at valve deck oil inlet, is conducive to fluid and more smoothly flows into check valve.
So that spring surrender is opened oil inlet by oil liquid pressure, can be opened by oil liquid pressure control oil inlet big
It is small, the braking torque of Retarder is adjusted, keeps the braking ability of Retarder more perfect.
Description of the drawings
Fig. 1 is the sectional view of check valve；
Fig. 2 is the structural schematic diagram of check valve.
In figure：1, valve deck；2, cover board；3, valve rod；4, spring；5, valve seat.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, described to be explanation of the invention rather than limit
It is fixed.
As illustrated in fig. 1 and 2, a kind of check valve for Retarder oil outlet, the check valve are mounted on heat exchanger
Between working chamber, import is connected with heat exchanger side, and outlet is connected with working chamber side, including valve deck 1, cover board 2, valve rod 3, bullet
Spring 4 and valve seat 5.
Wherein, the upper end of valve deck 1 is tightly connected with heat exchanger, and the lower end of valve deck 1 is provided with valve body, and valve seat 5 is mounted on
The lower end of valve body, spring 4 are mounted on valve seat 5, and valve rod 3 is mounted on the upper end of spring 4, and valve rod 3 is by the elastic force of spring 4 by valve
The entrance of body is closed.
Valve deck 1 is circular ring type structure, and seal groove is provided on the side wall of valve deck 1, is used for mounting O-shaped sealing ring, and valve deck 1 is logical
The housing seal for crossing O-ring seal and heat exchanger connects, and the rounded corner of cambered type is designed at 1 oil inlet of valve deck, is conducive to
Fluid more smoothly flows into check valve.
Valve body is circular ring type structure, is provided with multiple oil outlets on the side wall of valve body, multiple oil outlet circumference uniform distributions are in valve
On the side wall of body, oil outlet is rectangle.The internal diameter of valve body is less than the internal diameter of valve deck 1, forms stepped hole, for being carried out to valve rod 3
Limit, hydraulic oil are entered by compressing valve rod in valve body.
Being designed using semi-surrounding for valve body, has the hole of larger area directly to be communicated with working chamber in valve body side, compared to
The check valve that side surrounds entirely, it is ensured that fluid more quickly by check valve, shortens the response time of Retarder.
The rectangular formula arrangement of oil inlet and oil outlet of the valve, flowing pressure is crossed when reducing through type arrangement caused by oil outlet throttling action
Loss, and keep Retarder overall structure more compact.
Valve seat 5 is mounted on the lower end of valve body, the centrally disposed spring base for being useful for positioning spring of valve seat 5, bullet
Spring abutment it is centrally disposed be useful for installation valve rod 3 mounting hole, the mounting hole be through-hole, valve rod 3 can be in the mounting hole on
Lower movement.Multiple through-holes are provided on valve seat 5, for reduce oil flow it is too fast when impact to valve seat, extend the longevity of check valve
Life.Multiple through-holes are 4, are respectively arranged on valve seat.The quantity and size of through-hole are designed according to operating condition.
Valve rod 3 is step axle construction, including head cover, spring positioning seat and cylinder, and cylinder is mounted on the installation at 5 center of valve seat
In, spring positioning seat is arranged in the upper end of cylinder, and head cover is mounted on spring positioning seat, rubber cover board 2, valve are provided on head cover
Column 3 is combined closely by rubber cover board 2 and valve deck 1, ensure that the sealing performance of the check valve.Rubber cover board wraps head cover entirely
It encloses, rubber cover board can be effectively prevent to fall off, also can guarantee that the covering of rubber cover board is uniform, yield rate higher, the sealing of poppet
Performance.
Spring is mounted on using preloading condition between valve rod and valve seat, and spring requires to determine bullet according to retarder global design
Spring parameter and pre compressed magnitude ensure that spool unlatching is happy, close rapid.
The mode that interference fit can be used in the cooperation of valve body and valve seat or transition cooperation is combined with laser welding, wherein with mistake
It is preferable to cross the mode that cooperation is combined with laser welding, is more easy to realize in assembling process, and the service life is longer for check valve.
The check valve positions only at heat exchanger connecting plate, and most of valve body is at working chamber side, be conducive to for
The relatively narrow heat exchanger connecting plate of oil duct vacates the space of bigger, can effectively prevent fluid and dead zone occurs and lead to fluid pressure
Power is excessive, and torque skyrockets.
The present invention is based on the deep expansion and in-depth to fluid power theory, by design requirement and the theoretical mutually knot of hydraulic pressure
It closes, is ground by a large amount of theoretical calculations and actual test, and to the refinement of Retarder global design requirement and fluid power are theoretical
Study carefully, determines that the specific size of check valve, technology requires and spring parameter, this valve is made to disclosure satisfy that Retarder design is turned round
Square and opening time require.
When Retarder is in idling conditions, due to oil liquid pressure very little, oil outlet closed check valve, fluid can not
It is directly entered working chamber, fluid returns to oil sump shell, and the rotor idle running worked at the same time in chamber generates negative pressure, will under the action of negative pressure
A small amount of fluid in oil sump shell is sucked by dummy cycle oil circuit road in working chamber, and fluid is to the oil sealing and axis on Retarder
It holds and is lubricated, improve the service life of Retarder.
Secondly, fluid throws away working chamber under the idle running active force of rotor, by heat exchanger after, turn again to oil sump,
Form oily circulation loop when idle running.
When Retarder is in running order, oil liquid pressure, which increases to, can be such that the spring of oil outlet check valve bends
Clothes, oil outlet check valve are opened, and fluid generates torque into working chamber is directly entered after over-heat-exchanger, at this time Retarder into
Row working oil recycles.
The above content is merely illustrative of the invention's technical idea, and protection scope of the present invention cannot be limited with this, every to press
According to technological thought proposed by the present invention, any change done on the basis of technical solution each falls within claims of the present invention
Protection domain within.
Claims (10)
1. a kind of check valve for Retarder oil outlet, which is characterized in that including valve body, valve seat (5) and valve rod (3)；
The oil inlet of valve body is connect with heat exchanger, and the oil outlet of valve body is connect with working chamber, and oil outlet is arranged on the side wall of valve body,
Valve seat (5) is arranged in the lower end of valve body, and valve rod (3) is arranged in the inside of valve body, valve rod (3) for opening and closing of fault valve body into
Hydraulic fluid port is provided with spring (4) between valve rod (3) and valve seat (5).
2. a kind of check valve for Retarder oil outlet according to claim 1, which is characterized in that the valve body
Upper end is provided with valve deck (1), and valve body is connect by valve deck (1) with the shell of heat exchanger.
3. a kind of check valve for Retarder oil outlet according to claim 2, which is characterized in that the valve deck
(1) oil inlet is provided with arc angling.
4. a kind of check valve for Retarder oil outlet according to claim 1, which is characterized in that the oil outlet
Quantity be it is multiple, multiple oil outlet circumference uniform distributions are on body wall.
5. a kind of check valve for Retarder oil outlet according to claim 1, which is characterized in that the valve seat
(5) multiple oil outlets are provided on.
6. a kind of check valve for Retarder oil outlet according to claim 1, which is characterized in that the valve rod
(3) include cylinder and head cover, spring (4) is sleeved on cylinder, and head cover is arranged at the top of cylinder, and head cover is used for opening and closing of fault
Oil inlet.
7. a kind of check valve for Retarder oil outlet according to claim 6, which is characterized in that the valve seat
(5) be provided centrally with location hole, the cylinder is arranged in location hole and can move up and down.
8. a kind of check valve for Retarder oil outlet according to claim 6, which is characterized in that on the top plate
It is coated with rubber layer.
9. a kind of check valve for Retarder oil outlet according to claim 1, which is characterized in that the valve body with
Valve seat (5) is connected using interference fit, and laser welding.
10. a kind of control method of any check valves of claim 1-9, which is characterized in that
When Retarder is in idling conditions, valve rod (3) under the force of a spring closes the oil inlet of check valve, oil
For liquid level in oil sump shell, the rotor idle running in working chamber generates negative pressure, and a small amount of fluid in oil sump shell is passed through dummy cycle oil
Oil sealing and bearing are lubricated in way sucking working chamber；
When Retarder is in running order, oil liquid pressure increases, and valve rod (3) is under the active force of oil pressure by check valve
Oil inlet is opened, and fluid enters working chamber by heat exchanger and generates torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630747.3A CN108775428A (en) | 2018-06-19 | 2018-06-19 | A kind of check valve and control method for Retarder oil outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630747.3A CN108775428A (en) | 2018-06-19 | 2018-06-19 | A kind of check valve and control method for Retarder oil outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108775428A true CN108775428A (en) | 2018-11-09 |
Family
ID=64026073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810630747.3A Pending CN108775428A (en) | 2018-06-19 | 2018-06-19 | A kind of check valve and control method for Retarder oil outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108775428A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499625A (en) * | 2019-07-09 | 2019-11-26 | Tcl家用电器（合肥）有限公司 | Washing tub and washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3030494A1 (en) * | 1980-08-12 | 1982-02-18 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | DEVICE FOR MONITORING AND REGULATING THE BRAKE POWER OF A HYDRAULIC RETARDER |
| US4321945A (en) * | 1980-01-15 | 1982-03-30 | Electricite De France (Service National) | Damped fluid pressure relief valve |
| CN2074847U (en) * | 1990-10-24 | 1991-04-10 | 河北省电力试验研究所 | Double-sealing knife shape plate valve |
| JPH11129887A (en) * | 1997-10-28 | 1999-05-18 | Aisin Seiki Co Ltd | valve |
| US20060243329A1 (en) * | 2005-04-29 | 2006-11-02 | Ti Group Automotive Systems, L.L.C. | Check valve apparatus for fuel delivery systems |
| CN102235539A (en) * | 2010-04-29 | 2011-11-09 | 浙江三花股份有限公司 | Solenoid valve |
| CN202209366U (en) * | 2011-09-22 | 2012-05-02 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder |
| CN103671636A (en) * | 2013-09-10 | 2014-03-26 | 深圳市特尔佳科技股份有限公司 | Oil way structure of hydraulic retarder and method for reducing no-load loss of oil way structure |
| CN204647444U (en) * | 2015-02-27 | 2015-09-16 | 陕西法士特齿轮有限责任公司 | A kind of hydrodynamic retarding organ pipe connects angle check valve |
| CN106090350A (en) * | 2016-07-26 | 2016-11-09 | 宁波华盛汽车部件有限公司 | A kind of one-way valve structures for Retarder in parallel |
| CN106594335A (en) * | 2016-12-15 | 2017-04-26 | 宁波华盛联合制动科技有限公司 | One-way valve used for series hydraulic retarder |
| CN208845799U (en) * | 2018-06-19 | 2019-05-10 | 陕西法士特齿轮有限责任公司 | A kind of check valve for Retarder oil outlet |
-
2018
- 2018-06-19 CN CN201810630747.3A patent/CN108775428A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321945A (en) * | 1980-01-15 | 1982-03-30 | Electricite De France (Service National) | Damped fluid pressure relief valve |
| DE3030494A1 (en) * | 1980-08-12 | 1982-02-18 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | DEVICE FOR MONITORING AND REGULATING THE BRAKE POWER OF A HYDRAULIC RETARDER |
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| JPH11129887A (en) * | 1997-10-28 | 1999-05-18 | Aisin Seiki Co Ltd | valve |
| US20060243329A1 (en) * | 2005-04-29 | 2006-11-02 | Ti Group Automotive Systems, L.L.C. | Check valve apparatus for fuel delivery systems |
| CN102235539A (en) * | 2010-04-29 | 2011-11-09 | 浙江三花股份有限公司 | Solenoid valve |
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| CN204647444U (en) * | 2015-02-27 | 2015-09-16 | 陕西法士特齿轮有限责任公司 | A kind of hydrodynamic retarding organ pipe connects angle check valve |
| CN106090350A (en) * | 2016-07-26 | 2016-11-09 | 宁波华盛汽车部件有限公司 | A kind of one-way valve structures for Retarder in parallel |
| CN106594335A (en) * | 2016-12-15 | 2017-04-26 | 宁波华盛联合制动科技有限公司 | One-way valve used for series hydraulic retarder |
| CN208845799U (en) * | 2018-06-19 | 2019-05-10 | 陕西法士特齿轮有限责任公司 | A kind of check valve for Retarder oil outlet |
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| Title |
|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499625A (en) * | 2019-07-09 | 2019-11-26 | Tcl家用电器（合肥）有限公司 | Washing tub and washing machine |
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Application publication date: 20181109 |
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| RJ01 | Rejection of invention patent application after publication |