CN203035544U - Power steering pump assembly - Google Patents
Power steering pump assembly Download PDFInfo
- Publication number
- CN203035544U CN203035544U CN 201220676072 CN201220676072U CN203035544U CN 203035544 U CN203035544 U CN 203035544U CN 201220676072 CN201220676072 CN 201220676072 CN 201220676072 U CN201220676072 U CN 201220676072U CN 203035544 U CN203035544 U CN 203035544U
- Authority
- CN
- China
- Prior art keywords
- pump assembly
- servosteering
- oil
- servosteering pump
- power steering
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model discloses a power steering pump assembly which comprises a shell, a plate on an oil inlet side, a plate on a pressure side, a pump cover and an oil inlet cavity. The shell, the plate on the oil inlet side, the plate on the pressure side and the pump cover are made of aluminum alloy, the oil inlet cavity is arranged at an oil inlet of the power steering pump assembly and is communicated with an oil cavity of the power steering pump assembly, and the cross-sectional area of the oil inlet cavity is larger than that of the oil cavity. The power steering pump assembly has the advantages that the power steering pump assembly can be light by means of modifying materials, and has an important significance on energy conservation and emission reduction; and owing to the structural improvement, the reliability of the power steering pump assembly can be improved, the failure rate is reduced, the service life of the power steering pump assembly is effectively prolonged, and problems of abrasion and abnormal noise are solved.
Description
Technical field
The utility model relates to a kind of automobile power steering parts, relates in particular to a kind of servosteering pump assembly.
Background technique
Along with development of science and technology, development of technology, human material and cultural life has had very big improvement.The automobile driver also improves day by day to the requirement of ease of steering, and power steering system obtains more and more widely application at cargo vehicle, accounts for more than 60% of China's cargo vehicle total amount.
Be accompanied by the application of power steering system, the fault of a series of relevant power steering systems also occurs thereupon: steering system abnormal sound, the moving too early wearing and tearing of pump, the moving inefficacy hard steering etc. that changes of changeing are perplexing everybody always.But in the moving fault of transfering from one department to another to unite, all be to be caused by the reason of power steering pump directly or indirectly more than 60%.As seen, extremely urgent to the improvement of servosteering pump structure.
In addition, along with the expansion day by day of the contradiction between the supply of global energy and the human growing energy demand, along with emission of automobile wastes is increasingly sharpened to the baneful influence that environment causes, we have gone up a new step to the requirement of car load energy-saving and emission-reduction.At present, studies show that in a large number that about 75% oil consumption is relevant with complete vehicle quality, reduce car mass and just can effectively reduce oil consumption and discharging; The every decline 10% of car mass, oil consumption descends 8%, and discharging descends 4%.As seen, by the application of new material, to alleviating of power steering pump quality, energy-saving and emission-reduction are also had very important significance.
The model utility content
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of servosteering pump assembly is provided, and its improvement by material can realize lightweight, and the improvement by structure can improve reliability, reduces rate of fault.
For achieving the above object, described servosteering pump assembly is characterized in, described servosteering pump assembly comprises housing, oil-feed side plate, pressure side plate and the pump cover of making by aluminum alloy; And described servosteering pump assembly also comprises the oil suction chamber that is arranged at its filler opening place and is connected with its oil pocket, and the cross-section area of described oil suction chamber is greater than the cross-section area of oil pocket.
Preferably, described oil suction chamber is column.
Preferably, described servosteering pump assembly also comprises 12 blades and 12 the female blades in the uniform blade groove that is installed in the rotor outer wall; Oil pocket is established in the bottom of the blade groove of described rotor outer wall, and oil pocket communicates by the cavity volume of oilhole with the blade groove top, and logical oil groove is established at the blade groove middle part, and logical oil groove is communicated with the oil pocket between blades and the female blade; Logical oil groove communicates with the hyperbaric chamber of servosteering pump assembly by the circular groove of pressure side plate.
Preferably, described blades and stator inner wall contact jaw adopt the web-like structure.
Preferably, the drive shaft assembly of described servosteering pump assembly directly cooperates with the pressure side plate axis hole, and the fitted shaft hole surface of described pressure side plate is provided with lubrication channel, and lubrication channel communicates with described oil pocket.
Preferably, the inner chamber minor axis of described stator and the transition curve between the major diameter satisfy equation of higher degree curve.
Preferably, described transition curve satisfies 7 symmetry properties transition curves, and it satisfies: ρ=35 θ
4-84 θ
5+ 70 θ
6-20 θ
7, in the formula, ρ is the radius vector of blade and transition curve point of contact, θ is the angle that turns over of transition curve and the ratio of transition curve total angle; And, ρ ∈ [0,1]; θ ∈ [0,1].
Preferably, fuel inlet fitting assembly and delivery connection assembly are installed also on described housing, the angle that this fuel inlet fitting assembly and delivery connection assembly cooperate with housing is all adjustable.
Preferably, described pressure side plate is pressed on the stator by holddown spring.
Preferably, described servosteering pump assembly connects with the servosteering output shaft of motor by drive sleeve.
The beneficial effects of the utility model are, described servosteering pump assembly, and its improvement by material can realize lightweight, and energy-saving and emission-reduction are also had very important significance; Improvement by structure can improve reliability, reduces rate of fault, effectively raises working life simultaneously, has avoided wearing and tearing and abnormal sound problem.
Description of drawings
Fig. 1 shows the structural representation of servosteering pump assembly described in the utility model.
Fig. 2 shows the front view of servosteering pump assembly shown in Figure 1.
Fig. 3 shows the left view of servosteering pump assembly shown in Figure 1.
Fig. 4 shows servosteering pump assembly shown in Figure 2 along the generalized section of A-A direction.
Fig. 5 shows the inner chamber minor axis of the stator shown in Fig. 4 and the schematic representation of the transition curve between the major diameter.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments:
Described servosteering pump assembly mainly, little O type circle 17 stifled 16 by drive shaft assembly 1, outer back-up ring 2, housing 3, locating stud 4, oil-feed side plate 5, stator 6, rotor 9, big O type circle 11, pressure side plate 12, pump cover 14, Steel Cable Baffle Ring 15, valve, slide valve assembly 18, balance spring 19, inner shield ring 20 etc. is formed.Wherein, described housing 3, oil-feed side plate 5, pressure side plate 12 and pump cover 14 are made by aluminum alloy, by the application of new material aluminum alloy, can effectively alleviate the quality of whole servosteering pump assembly, and energy-saving and emission-reduction are also had very important significance.
And described servosteering pump assembly also comprises the oil suction chamber 25 that is arranged at its filler opening place and is connected with its oil pocket, and the cross-section area of described oil suction chamber 25 is greater than the cross-section area of oil pocket.Described oil suction chamber 25 is column, and these oil suction chamber 25 end faces seal by oil suction chamber end-cap assembly 24, and the volume of oil suction chamber 25 mates design according to the rated flow of servosteering pump assembly.A large amount of testing surfaces, increase described oil suction chamber 25 structures after, can effectively avoid in the winter time, especially Bei Fang winter, power steering fluid Yin Wendu is low excessively, viscosity increase, the problem of general abnormal sound during the cold start-up of servosteering pump assembly; In addition, after increasing oil suction chamber 25 structures, can effectively alleviate power steering fluid because of the oil suction resistance of the bending increase of oil pocket, certain compensating action is played in the oil suction of servosteering pump assembly, reduce the blade of servosteering pump assembly and the impact between the stator inner wall, reduce the wearing and tearing of blade and stator inner wall, prolong the working life of servosteering pump assembly.
In addition, fuel inlet fitting assembly 22 and delivery connection assembly 23 also are installed on described housing 3, the angle that this fuel inlet fitting assembly 22 and delivery connection assembly 23 cooperate with housing 3 is all adjustable, greatly make things convenient for the servosteering pump assembly into and out of the connection of oil pipe, also improved the versatility of servosteering pump assembly.
Especially, described servosteering pump assembly also comprises 12 blades 7 and 12 the female blades 8 in the uniform blade groove that is installed in the rotor outer wall; Oil pocket is established in the bottom of the blade groove of described rotor outer wall, and oil pocket communicates by the cavity volume of oilhole with the blade groove top, and logical oil groove is established at the blade groove middle part, and logical oil groove is communicated with the oil pocket between blades 7 and the female blade 8; Logical oil groove communicates with the hyperbaric chamber of servosteering pump assembly by the circular groove of pressure side plate 12.Because the blade groove bottom communicates with the top is porose, make the vane group bottom identical with the top pressure, up and down equilibrium of forces.Blade only bears the power that high pressure oil produces for the blades sectional area to the impacting force that stator 6 produces; Because the length of blades 7 is about 1/3rd of female blade 8 length, so blade also has only about 1/3rd of conventional steering pump to the impacting force of stator 6, the stator low pressure area just over worn phenomenon can not occur, effectively raise the working life of servosteering pump assembly, avoided grind and the abnormal sound problem morning of servosteering pump assembly.
In addition, described blades 7 adopts the web-like structure with the stator inner wall contact jaw, when making the work of servosteering pump assembly, have rolling friction and sliding friction between blades 7 and the stator inner wall simultaneously, can effectively reduce the noise of servosteering pump assembly, reduce the temperature rise of power steering fluid, reduced the wearing and tearing of vane end faces and stator inner wall to a great extent, improve the working life of servosteering pump assembly.
The drive shaft assembly 1 of described servosteering pump assembly directly cooperates with pressure side plate 12 axis holes, the fitted shaft hole surface of described pressure side plate 12 is provided with lubrication channel 10, lubrication channel 10 communicates with described oil pocket, played good lubrication, substitute traditional sliding bearing structure, reduced the cost of servosteering pump assembly.
The inner chamber minor axis of described stator 6 and the transition curve between the major diameter satisfy equation of higher degree curve, in the time of can making the work of power steering pump assembly, blade can carry out mild transition, reduce blade to the impact of stator inner wall, also reduced the pressure pulse of power steering fluid, noise can be effectively reduced, and the working life of servosteering pump assembly can be prolonged.As shown in Figure 5, above-mentioned transition curve is preferably the symmetry properties transition curve 7 times, and it satisfies: ρ=35 θ
4-84 θ
5+ 70 θ
6-20 θ
7, in the formula, ρ is the radius vector of blade and transition curve point of contact, θ is the angle that turns over of transition curve and the ratio of transition curve total angle; And, ρ ∈ [0,1]; θ ∈ [0,1].
Described pressure side plate 12 is pressed on the stator 6 by holddown spring 13, and is more reliability and durability than traditional elastic seal ring.
Described servosteering pump assembly connects with the servosteering output shaft of motor by drive sleeve 21, and is more reliable than traditional belt transmission, and do not have the transmission energy loss, the efficient height.
Being the utility model preferred embodiment only in sum, is not to limit practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.
Claims (10)
1. servosteering pump assembly, it is characterized in that: described servosteering pump assembly comprises housing, oil-feed side plate, pressure side plate and the pump cover of making by aluminum alloy; And described servosteering pump assembly also comprises the oil suction chamber that is arranged at its filler opening place and is connected with its oil pocket, and the cross-section area of described oil suction chamber is greater than the cross-section area of oil pocket.
2. servosteering pump assembly according to claim 1, it is characterized in that: described oil suction chamber is column.
3. servosteering pump assembly according to claim 1 and 2 is characterized in that: described servosteering pump assembly also comprises 12 blades and 12 the female blades in the uniform blade groove that is installed in the rotor outer wall; Oil pocket is established in the bottom of the blade groove of described rotor outer wall, and oil pocket communicates by the cavity volume of oilhole with the blade groove top, and logical oil groove is established at the blade groove middle part, and logical oil groove is communicated with the oil pocket between blades and the female blade; Logical oil groove communicates with the hyperbaric chamber of servosteering pump assembly by the circular groove of pressure side plate.
4. servosteering pump assembly according to claim 3 is characterized in that: described blades and stator inner wall contact jaw employing web-like structure.
5. servosteering pump assembly according to claim 1 and 2, it is characterized in that: the drive shaft assembly of described servosteering pump assembly directly cooperates with the pressure side plate axis hole, the fitted shaft hole surface of described pressure side plate is provided with lubrication channel, and lubrication channel communicates with described oil pocket.
6. servosteering pump assembly according to claim 1 and 2, it is characterized in that: the inner chamber minor axis of the stator of described servosteering pump assembly and the transition curve between the major diameter satisfy equation of higher degree curve.
7. servosteering pump assembly according to claim 6, it is characterized in that: described transition curve satisfies 7 symmetry properties transition curves, and it satisfies: ρ=35 θ
4-84 θ
5+ 70 θ
6-20 θ
7, in the formula, ρ is the radius vector of blade and transition curve point of contact, θ is the angle that turns over of transition curve and the ratio of transition curve total angle; And, ρ ∈ [0,1]; θ ∈ [0,1].
8. servosteering pump assembly according to claim 1 and 2, it is characterized in that: fuel inlet fitting assembly and delivery connection assembly also are installed on described housing, and the angle that this fuel inlet fitting assembly and delivery connection assembly cooperate with housing is all adjustable.
9. servosteering pump assembly according to claim 1 and 2, it is characterized in that: described pressure side plate is pressed on the stator by holddown spring.
10. servosteering pump assembly according to claim 1 and 2, it is characterized in that: described servosteering pump assembly connects with the servosteering output shaft of motor by drive sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676072 CN203035544U (en) | 2012-12-10 | 2012-12-10 | Power steering pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676072 CN203035544U (en) | 2012-12-10 | 2012-12-10 | Power steering pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035544U true CN203035544U (en) | 2013-07-03 |
Family
ID=48687674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220676072 Withdrawn - After Issue CN203035544U (en) | 2012-12-10 | 2012-12-10 | Power steering pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979726A (en) * | 2012-12-10 | 2013-03-20 | 安徽江淮汽车股份有限公司 | Power steering pump assembly |
-
2012
- 2012-12-10 CN CN 201220676072 patent/CN203035544U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979726A (en) * | 2012-12-10 | 2013-03-20 | 安徽江淮汽车股份有限公司 | Power steering pump assembly |
| CN102979726B (en) * | 2012-12-10 | 2015-10-21 | 安徽江淮汽车股份有限公司 | A kind of servosteering pump assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102840134B (en) | Vane control mechanism | |
| CN201786404U (en) | Tappet component provided with lubricating structure | |
| CN201738961U (en) | Oil pump of transverse diesel engine | |
| CN202047981U (en) | Automotive hydraulic power assisted steering pump | |
| CN203035544U (en) | Power steering pump assembly | |
| CN203035551U (en) | Scroll compressor, air conditioner and automobile | |
| CN203067041U (en) | Variable nozzle ring of ball type structure | |
| CN102556321A (en) | Floating type spherical rotating vane steering engine | |
| CN201546889U (en) | Biserial radial ten-piston motor | |
| CN200949525Y (en) | Rotary vane air conditioning compressor for vehicle | |
| CN102979726B (en) | A kind of servosteering pump assembly | |
| CN202900655U (en) | Low pressure oil injection type screw compressor | |
| CN201884279U (en) | Variable-displacement power steering pump | |
| CN101907092B (en) | Conjugated sleeve pump | |
| CN210178480U (en) | Roller type piston of internal combustion engine | |
| CN201953656U (en) | Annular-pin structure type scroll compressor with lubrication groove on end face of movable disc | |
| CN202418573U (en) | Pumping type sealing device for air compressor end of pressurizer | |
| CN201582107U (en) | Rotor lubricant pump directly transmitted by flat square of engine crankshaft | |
| CN201106669Y (en) | Hydrodynamic torque converter | |
| CN205383072U (en) | Plunger pump packing device | |
| CN2929194Y (en) | Small turbocharger with mixed flow turbine and water cooling bearing | |
| CN204877865U (en) | Energy -conserving no oily vertical vacuum pump | |
| CN201574894U (en) | 4.5ml/r ultra-high pressure electro-hydraulic proportional control radial plunger pump | |
| CN102817835B (en) | Blade stretches controlled vane pump | |
| CN201925160U (en) | High-pressure high-emission power steering pump with rear-end oil outlet for automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20160725 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |