CN102330673B - Pressure withstanding outflow type power-assisted steering pump - Google Patents
Pressure withstanding outflow type power-assisted steering pump Download PDFInfo
- Publication number
- CN102330673B CN102330673B CN201110202307.6A CN201110202307A CN102330673B CN 102330673 B CN102330673 B CN 102330673B CN 201110202307 A CN201110202307 A CN 201110202307A CN 102330673 B CN102330673 B CN 102330673B
- Authority
- CN
- China
- Prior art keywords
- side plate
- pump
- oil
- pressure
- spring
- 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
Links
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
Pressure withstanding outflow type power-assisted steering pump, pump cover is installed in pump housing one end, oil-feed side plate, stator, fuel-displaced side plate are connected and installed in the pump housing successively, and by spring compression, rotor is enclosed within stator inner hole, in rotor slotted eye, blade is installed, axle is connected with rotor, and pump body installs guiding valve, and guiding valve is provided with spring, guiding valve inside is provided with cone valve, mounting spring on cone valve.Fuel-displaced side plate middle is provided with boss, and side plate boss diameter is identical with pump cover diameter of bore, and side plate boss and pump cover endoporus are coordinated by O RunddichtringO to be installed.Coordinated with pump cover by side plate, pump cover lifting surface area reduces simultaneously, and the reduction of active force makes to be delivered to back-up ring and the power acted on the pump housing reduces, withstand voltage higher.Pressure withstanding outflow type power-assisted steering pump of the present invention, metering pump basis achieves flow control and Stress control, this boost pump working pressure is high, noise is little, volume is little, not easy oil leakage, control highly sensitive, Security is high.
Description
Technical field
The present invention relates to automobile steering system power-assisted oil pump field.
Background technique
Motor turning is adopt mechanical type steering wheel to realize for many years always, operating direction machine has pinion and-rack circulating ball type, the larger operating flexibility of this form steering torque is poor, easily fatigue is produced and poor stability during driver's operation, along with the economic development of China, people's living standard improves constantly, driving comfort cry is more and more high, and the fast development high-powered engine heavy duty vehicle of automobile industry is in rising trend, steering force strengthens mechanical type steering wheel gradually can not meet China Automobile Industry, hydraulic power-assist steering system solves to reduce steering force reduction driver labor intensity effective ways, power assistance pump for steering is for hydraulic power-assist steering system provides the fundamental function part of pressure and flow.
Summary of the invention
In order to solve, mechanical type steering wheel steering torque is comparatively large, operating flexibility is poor, driver's operation time easily produce fatigue and the problem of poor stability, the invention provides a kind of pressure withstanding outflow type power-assisted steering pump.
The technological scheme that the present invention is adopted for achieving the above object is: pressure withstanding outflow type power-assisted steering pump, pump cover is installed in pump housing one end, oil-feed side plate, stator, fuel-displaced side plate are connected and installed in the pump housing successively, rotor is enclosed within stator inner hole, and install blade in rotor slotted eye, axle is connected with rotor, pump body installs guiding valve, guiding valve is provided with spring, and guiding valve inside is provided with cone valve, mounting spring on cone valve.
Described oil-feed side plate, stator and fuel-displaced side plate are installed on the pump housing by locating stud.
Be provided with spring in the described pump housing, spring is pressed on fuel-displaced side plate end face.
Described axle is installed bearing and composite bearing, back-up ring is installed in bearing side.
The pump housing is provided with outside framework oil seal.
Gear is installed in described axle one end, and gear is connected with axle by key.
Be provided with spacer between described guiding valve and conical valve base, between guiding valve and cone valve, be provided with fine setting pad.
Seal ring is provided with between described fuel-displaced side plate and pump cover.
Pressure withstanding outflow type power-assisted steering pump of the present invention, metering pump basis achieves flow control and Stress control, this boost pump working pressure is high, noise is little, volume is little, not easy oil leakage, control highly sensitive, Security is high.
Accompanying drawing explanation
Fig. 1 is the main pseudosection of pressure withstanding outflow type power-assisted steering pump of the present invention.
Fig. 2 is the guiding valve group sectional drawing of pressure withstanding outflow type power-assisted steering pump of the present invention.
In figure: key 1, back-up ring 2, bearing 3, spring 4, guiding valve 5, oil-feed side plate 6, locating stud 7, rotor 8, blade 9, pump cover 10, spring 11, O RunddichtringO 12, composite bearing 13, fuel-displaced side plate 14, copper wire back-up ring 15, the pump housing 16, O RunddichtringO 17, O RunddichtringO 18, stator 19, outside framework oil seal 20, axle 21, gear 22, spring 23, cone valve 24, conical valve base 26, spacer 27, fine setting pad 28.
Embodiment
Pressure withstanding outflow type power-assisted steering pump of the present invention realizes the application that flow control, Stress control and power change on metering pump working principle basis.Metering pump working principle is embodied as steering system to provide pressure versus flow, and the pressure of output is relevant with load, and the flow of output is directly proportional to rotating speed, and rotating speed more high flow capacity is larger.Flow control principle ensures that the flow of steering pump input redirect system is tending towards constant.Flow control principle: form pressure reduction by producing pressure drop during flow control damping hole when pumping oil pocket fluid, larger by the larger pressure reduction of damping hole flow, and damping hole two ends fluid acts directly on the two ends of flow control valve respectively, when pressure reduction has broken flow control valve state of equilibrium, valve overcomes spring force and starts mobile under the effect of pressure reduction, use oil pocket to communicate with oil spilling mouth, fuel-displaced cavity segment flow overflows through flow-off, and flooded traffic directly enters pump oil sucting cavity by inner flow passage.Make to be tending towards constant by the output flow of oil outlet input redirect system, realize flow control.If engine speed improves, output flow increases, and control valve displacement amount strengthens overflow openings to be increased, and oil spilling mouth flooded traffic just increases, thus stabilizes output flow, ensure that driver travels at high speeds and handles feel and Security.Stress control principle: when induced pressure reaches the cracking pressure of boost pump setting, namely during pressure maximum, cone valve is opened, and realizes overflow, defines system maximum pressure.The application that power changes: in outer diameter D
2pump cover on design internal diameter D
1cylindrical hole makes it and pressure side plate outer diameter D
1boss adopts and is sealed and matched, thus reduction pressure chamber high pressure oil acts on area on pump cover, and make active area become A2 from original A1, former active area is A1=π D
2 2/ 4, after improving, active area is A2=π (D
2 2-D
1 2)/4, fluid cover produce active force be reduced to F2=PA2 by F1=PA1, reduce the pulling force of Steel Cable Baffle Ring to the pump housing, degree that the pump housing is withstand voltage improve.
As depicted in figs. 1 and 2, the critical component realizing pump work principle has stator 19, rotor 8, blade 9, side plate group, guiding valve group, the pump housing 16, pump cover 10, axle 21 to the structure of pressure withstanding outflow type power-assisted steering pump of the present invention.All parts load in the integrated type pump housing 16 by this structural design, and then close with pump cover 10, pump cover 10 limits and fixes under Steel Cable Baffle Ring 15 acts on.Oil-feed side plate 6, stator 19, fuel-displaced side plate 14 run through to be connected on the pump housing 16 and limit rotary freedom by locating stud 7.Be provided with spring 11 in the pump housing 16, spring 11 is pressed in fuel-displaced side plate 14 end face and limits axial position and serve floating effect again.Described fuel-displaced side plate 14 and pump cover 10 are coordinated by seal ring 12.Rotor 8 is contained in stator 19 endoporus, and axle 21 is connected with rotor 8, and guiding valve 5 is installed in the pump housing 16 inside, guiding valve 5 is provided with spring 4, guiding valve 5 inside is provided with cone valve 24, mounting spring 23 on cone valve 24, and the pump housing 16 is provided with a filler opening, an oil outlet and an oil spilling mouth.During boost pump work, rotor 8 rotates under the driving of axle 21, the blade 9 be mounted in it in rotor 8 slotted eye is dished out, blade 9 and stator 19 negative camber, oil-feed side plate 6, fuel-displaced side plate 14 form closed containing cavity, when rotor 8 forwards stator 19 negative camber lift part to, because cavity volume increases, and by the oily fenestra on oil-feed side plate 6, fluid is sucked.Fall journey part when rotor 8 forwards stator 19 negative camber to, because cavity volume reduces, flowed out by the fuel-displaced fenestra of oil-feed side plate 6 by the fluid compressed, the fluid of outflow enters steering system by flow control damping hole through pumping hydraulic fluid port.Flow into one end that the flow control guiding valve 5 be contained in valve opening has spring 4 simultaneously.And damping hole front end fluid enters flow control guiding valve 5 without spring 4 end.Pressure reduction is formed because the flow flowing through damping hole can produce pressure drop, when pressure reduction is more than or equal to spring 4 power, the balance of guiding valve 5 is broken, guiding valve 5 produces mobile, go out oil pocket to communicate with oil spilling mouth and make part fluid by flow-off overflow, make to pump hydraulic fluid port output flow and be tending towards constant, realize flow control principle.Flooded traffic flows back to oil tank by exterior line, realizes outer circulation.Act on the fluid of spring 4 end, act on cone valve 24 by pressure damping hole, when system pressure be more than or equal to that spring 23 sets up in advance severals time, also overflow opened by cone valve 24, limits the maximum pressure of system, realizes Stress control principle.Spring 11 is pressed on fuel-displaced side plate 14 end face, and spring 11 ensure that oil-feed side plate 6, stator 19 can closely be connected, and ensures that design performance is achieved.Bearing 3 on the axle 21 of the loading pump housing 16 and composite bearing 13 ensure that centering and the transmission accuracy of axle 21, realize performance accuracy.Back-up ring 2 is installed in bearing 3 side.The pump housing 16 is provided with outside framework oil seal 20, and outside framework oil seal 20 sealing function is for ensureing that air is not inhaled into oil pocket fluid and does not leak.Gear 22 is installed in axle 21 one end, and gear 22 is connected with axle 21 by key 1, and gear 22 carries pump input power transmission.Be provided with spacer 27 between described guiding valve 5 and conical valve base 26, be provided with between guiding valve 5 and cone valve 24 and finely tune pad 28.Pump cover 10 and fuel-displaced side plate 14 are sealed and matched, and reduce pressure chamber high pressure oil and act on area on pump cover, and fluid is covering the decline of generation active force, thus reduces Steel Cable Baffle Ring to the pulling force of the pump housing, and under the prerequisite that the pump housing is not changed, system pressure promotes.
Claims (8)
1. pressure withstanding outflow type power-assisted steering pump, it is characterized in that: pump cover (10) is installed in the pump housing (16) one end, oil-feed side plate (6), stator (19), fuel-displaced side plate (14) is connected and installed in the pump housing (16) successively, rotor (8) is enclosed within stator (19) endoporus, blade (9) is installed in rotor (8) slotted eye, axle (21) is connected with rotor (8), guiding valve (5) is installed in the pump housing (16) inside, guiding valve (5) is provided with the first spring (4), guiding valve (5) inside is provided with cone valve (24), upper installation second spring (23) of cone valve (24), the pump housing (16) is provided with a filler opening, an oil outlet and an oil spilling mouth, blade (9) and stator (19) negative camber, oil-feed side plate (6), fuel-displaced side plate (14) forms closed containing cavity, when rotor (8) forwards stator (19) negative camber lift part to, because cavity volume increases, fluid is sucked by the oily fenestra on oil-feed side plate (6), when rotor (8) forwards stator (19) negative camber to, journey part is fallen, because cavity volume reduces, flowed out by the fuel-displaced fenestra of oil-feed side plate (6) by the fluid compressed, the fluid flowed out enters steering system by flow control damping hole through oil outlet, flows into one end that the guiding valve (5) be contained in valve opening has spring (4) simultaneously, flow control damping hole front end fluid enters guiding valve (5) without the first spring (4) end, pressure reduction is formed because the flow flowing through damping hole can produce pressure drop, when pressure reduction is more than or equal to the first spring (4) power, the balance of guiding valve (5) is broken, guiding valve (5) produces mobile, go out oil pocket to communicate with oil spilling mouth and make part fluid by the overflow of oil spilling mouth, make oil outlet output flow be tending towards constant, realize flow control, act on the fluid that the first spring (4) is held, act on cone valve (24) by pressure damping hole, when system pressure be more than or equal to that the second spring (23) sets up in advance severals time, also overflow opened by cone valve (24), limit the maximum pressure of system, realize Stress control.
2. pressure withstanding outflow type power-assisted steering pump according to claim 1, is characterized in that: described oil-feed side plate (6), stator (19) and fuel-displaced side plate (14) are installed on the pump housing (16) by locating stud (7).
3. pressure withstanding outflow type power-assisted steering pump according to claim 1, is characterized in that: be provided with spring (11) in the described pump housing (16), and spring (11) is pressed on fuel-displaced side plate (14) end face.
4. pressure withstanding outflow type power-assisted steering pump according to claim 1, is characterized in that: described axle (21) is installed bearing (3) and composite bearing (13), and back-up ring (2) is installed in bearing (3) side.
5. pressure withstanding outflow type power-assisted steering pump according to claim 1, is characterized in that: the pump housing (16) is provided with outside framework oil seal (20).
6. pressure withstanding outflow type power-assisted steering pump according to claim 1, is characterized in that: gear (22) is installed in described axle (21) one end, and gear (22) is connected with axle (21) by key (1).
7. pressure withstanding outflow type power-assisted steering pump according to claim 1, is characterized in that: be provided with spacer (27) between described guiding valve (5) and conical valve base (26), is provided with to finely tune and pads (28) between guiding valve (5) and cone valve (24).
8. pressure withstanding outflow type power-assisted steering pump according to claim 1, is characterized in that: be provided with seal ring (12) between described fuel-displaced side plate (14) and pump cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110202307.6A CN102330673B (en) | 2011-07-19 | 2011-07-19 | Pressure withstanding outflow type power-assisted steering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110202307.6A CN102330673B (en) | 2011-07-19 | 2011-07-19 | Pressure withstanding outflow type power-assisted steering pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102330673A CN102330673A (en) | 2012-01-25 |
| CN102330673B true CN102330673B (en) | 2016-01-06 |
Family
ID=45482577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110202307.6A Expired - Fee Related CN102330673B (en) | 2011-07-19 | 2011-07-19 | Pressure withstanding outflow type power-assisted steering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102330673B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640633A (en) * | 2016-12-01 | 2017-05-10 | 大连液压件有限公司 | High-efficiency electric steering pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB699387A (en) * | 1950-10-07 | 1953-11-04 | Vickers Inc | Improvements in rotary motors or pumps |
| US4420290A (en) * | 1981-05-07 | 1983-12-13 | Trw Inc. | Power steering pump |
| CN2343438Y (en) * | 1998-08-21 | 1999-10-13 | 苏州农业药械厂 | Liquid controlled unloader with pressure limiting function |
| CN201574928U (en) * | 2009-08-14 | 2010-09-08 | 大连液压件有限公司 | Three-oil-mouth steering vane pump for lowering oil temperature |
| CN201802621U (en) * | 2010-04-30 | 2011-04-20 | 温岭市富力泵业有限公司 | Vane pump |
| CN201827163U (en) * | 2010-10-20 | 2011-05-11 | 山东常林机械集团股份有限公司 | Pressure relief valve for main-control valve of excavating machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6481992B2 (en) * | 2000-02-11 | 2002-11-19 | Delphi Technologies, Inc. | Vane pump |
-
2011
- 2011-07-19 CN CN201110202307.6A patent/CN102330673B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB699387A (en) * | 1950-10-07 | 1953-11-04 | Vickers Inc | Improvements in rotary motors or pumps |
| US4420290A (en) * | 1981-05-07 | 1983-12-13 | Trw Inc. | Power steering pump |
| CN2343438Y (en) * | 1998-08-21 | 1999-10-13 | 苏州农业药械厂 | Liquid controlled unloader with pressure limiting function |
| CN201574928U (en) * | 2009-08-14 | 2010-09-08 | 大连液压件有限公司 | Three-oil-mouth steering vane pump for lowering oil temperature |
| CN201802621U (en) * | 2010-04-30 | 2011-04-20 | 温岭市富力泵业有限公司 | Vane pump |
| CN201827163U (en) * | 2010-10-20 | 2011-05-11 | 山东常林机械集团股份有限公司 | Pressure relief valve for main-control valve of excavating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102330673A (en) | 2012-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105818856B (en) | Vehicle electrically controlling hydraulic power-assisted steering electricity consumption liquid pump | |
| CN103573618B (en) | A kind of car variable-displacement power steering pump | |
| CN104279261B (en) | A kind of bend flow channel half initiatively hydraulic mount | |
| CN201574928U (en) | Three-oil-mouth steering vane pump for lowering oil temperature | |
| CN209943965U (en) | Electric liquid pump for auxiliary lubrication of gearbox of hybrid electric vehicle | |
| CN102330673B (en) | Pressure withstanding outflow type power-assisted steering pump | |
| CN202047981U (en) | Automotive hydraulic power assisted steering pump | |
| CN102352838A (en) | Two-body outflow type power steering pump | |
| CN102338081A (en) | Tow-body internal-leaked steering booster pump | |
| CN102330674A (en) | Pressure-proof inside-discharge type steering power-assisted pump | |
| CN202646157U (en) | Improved water pump | |
| CN102338084A (en) | Integral external-release type power steering pump | |
| CN102338085A (en) | Integral internal-discharge-type power steering pump | |
| CN104074743A (en) | Efficient steering pump | |
| CN204077646U (en) | A kind of vacuum-assisted check valve | |
| CN207539023U (en) | A kind of screw gear type low noise steering pump | |
| CN103321898A (en) | Pressure resistant steering pump | |
| CN102338082A (en) | Three-body external-release type power steering pump | |
| CN101509488B (en) | Oil distributing tray with pressure equilibrium chamber | |
| CN102155404B (en) | Automobile twin-stage-type hydraulic power-assisted steering vane pump | |
| CN203114654U (en) | Submersible electric pump with axial thrust balancing function | |
| CN101949385B (en) | Hydraulic power-assisted steering pump with double stators and double valve bodies for vehicles | |
| CN104061153A (en) | Steering pump with single oil opening | |
| CN202208312U (en) | Power steering gear screw rod assembly with bypass oil hole | |
| CN103321900A (en) | Light steering pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160106 Termination date: 20210719 |