CN103321898A - Pressure resistant steering pump - Google Patents
Pressure resistant steering pump Download PDFInfo
- Publication number
- CN103321898A CN103321898A CN 201310193218 CN201310193218A CN103321898A CN 103321898 A CN103321898 A CN 103321898A CN 201310193218 CN201310193218 CN 201310193218 CN 201310193218 A CN201310193218 A CN 201310193218A CN 103321898 A CN103321898 A CN 103321898A
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- Prior art keywords
- pump
- stator
- rotor
- pressure
- pump housing
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- Rotary Pumps (AREA)
Abstract
The invention discloses a pressure resistant steering pump. A pump cover is arranged at one end of a pump body, a stator is arranged in the pump body, a rotor is sleeved in the inner bore of the stator, an oil outlet sideboard is arranged in the pump body, the inner sides of the stator and the rotor cooperate with the inner curved surface of the pump body, the inner curved surface of the stator, the end surface of the pump cover and the oil outlet sideboard compose a closed cavity, a blade is arranged in the slot hole of the rotor, a shaft is connected with the rotor, a slide valve is arranged at the lower portion in the pump body, a spring is arranged on the slide valve, and the pump body is provided with a skeleton oil seal, an oil inlet and an oil outlet. The pressure resistant steering pump realizes the flow and pressure control on the basis of a constant delivery pump principle, and has the advantages of high working pressure resistance, small voice, small size, difficult oil leakage, high control sensitivity and high safety.
Description
Technical field
The present invention relates to automobile steering system force aid system field, relate in particular to the automobile steering oil pump technical field.
Background technique
Motor turning is to adopt the mechanical type steering wheel to realize for many years always, and the operating direction machine has pinion and-rack, circulating ball type, and this form steering torque is larger, and operating flexibility is poor, easily produces fatigue and poor stability during driver's operation.Along with the economic development of China, people's living standard improves constantly, the driving comfort cry is more and more high, and the fast development of automobile industry, high-powered engine heavy duty vehicle is in rising trend, and steering force strengthens gradually, and the mechanical type steering wheel can not satisfy China Automobile Industry, hydraulic power-assist steering system is to solve to reduce handling maneuver power, reduction driver labor intensity effective ways, and power assistance pump for steering is the fundamental function part that pressure and flow are provided for hydraulic power-assist steering system.
Summary of the invention
The problems referred to above that exist in order to overcome traditional mechanical type power assistance pump for steering the invention provides a kind of pressure-resistant steering pump.
The technological scheme that the present invention adopts for achieving the above object is: the pressure-resistant steering pump, the pump housing one end is installed pump cover, stator is installed in the pump housing, rotor is enclosed within the stator inner hole, fuel-displaced side plate is installed in the pump housing, stator and rotor inboard and pump housing negative camber edge mate, stator negative camber, pump cover end face, fuel-displaced side plate form closed containing cavity, in the rotor slotted eye blade is installed, axle is connected with rotor, guiding valve is installed in the bottom in the pump housing, and spring is installed on the guiding valve, and the pump housing is provided with outside framework oil seal, filler opening, oil outlet.
Described stator, fuel-displaced side plate are connected locating stud with pump cover and connect.
Bearing and composite bearing are installed on the described axle.
Described axle one end is installed helical gear, and helical gear is connected with axle by flat key.
Be provided with spacer between described guiding valve and the valve seat, be provided with the fine setting pad between guiding valve and the cone valve.
Pressure-resistant steering pump of the present invention, realized on metering pump principle basis flow control and pressure control, this boost pump work compression resistance is high, noise is little, volume is little, not easy oil leakage, control highly sensitive, safe.
Description of drawings
Fig. 1 is the main pseudosection of pressure-resistant steering pump of the present invention.
Fig. 2 is the right elevation of pressure-resistant steering pump of the present invention.
Fig. 3 is the guiding valve group structural drawing of pressure-resistant steering pump of the present invention.
Among the figure: flat key 1, O RunddichtringO 2, back-up ring 3, the pump housing 4, Sealing shield ring 5, fuel-displaced side plate 9, locating stud 10, pump cover 11, stator 12, rotor 13, composite bearing 14, blade 15, O RunddichtringO 16, O RunddichtringO 17, plug screw 18, spring 19, guiding valve 20, outside framework oil seal 21, bearing 22, back-up ring 23, helical gear 24, floor clip 25, nut 26, axle 27, bolt 28, valve seat 29, cone valve 30, spacer 31, fine setting pad 32, spring 33.
Embodiment
Pressure-resistant steering pump structure of the present invention realizes that the critical component of pump work principle has stator 12, rotor 13, blade 15, fuel-displaced side plate 9, guiding valve group, the pump housing 4, pump cover 11, axle 27 shown in Fig. 1-2.The pump housing 4 one ends are installed pump cover 11, the pump housing 4, pump cover 11 connect to form basic boom by bolt 28, stator 12 is installed in the pump housing 4, fuel-displaced side plate 9 is installed on the pump housing 4 inner stators 12 and the rotor 13 inboard and pump housing 4 negative camber edge mate, locating stud 10 passes stator 12, fuel-displaced side plate 9 is connected with pump cover 11, makes stator 12 negative cambers, pump cover 11 end faces, fuel-displaced side plate 9 form closed containing cavity.Rotor 13 is enclosed within stator 12 endoporus, and blade 15 is installed in rotor 13 slotted eyes, and axle 27 is connected with rotor 13, guiding valve 20 is installed in the pump housing 4 interior bottoms, and guiding valve group structure is equipped with spring 19 as shown in Figure 3 on the guiding valve 20, guiding valve 20 inside are provided with cone valve 30, and mounting spring 33 on the cone valve 30.Axle 2 one ends are installed helical gear 24.The pump housing is provided with a filler opening, an oil outlet and a flow-off, be provided with floor clip 25 between nut 26 and the helical gear 24, be positioned at place, guiding valve 20 ends on the pump housing 4 and be provided with plug screw 18, be provided with O RunddichtringO 2 and Sealing shield ring 5 between the pump housing 4 and plug screw 18, stator 12 and the pump housing 4, place, bearing 22 ends is provided with back-up ring 3.
During boost pump work, the blade 15 that makes in rotor 13 slotted eyes skids off and divide formation to increase closed containing cavity with stator 12 negative camber lift portion rotating under the driving of transmission shaft 27, and by fuel-displaced side plate 9 and pump cover 11 fenestras the fluid in the oil suction chamber is sucked, the journey part is fallen when rotor 13 forwards stator 12 negative cambers to, because cavity volume reduces, compressed fluid flows out by fuel-displaced side plate 9 fuel-displaced fenestras, the fluid that flows out enters steering system by the flow control damping hole through pumping hydraulic fluid port, this moment, fuel-displaced window pressure sharply raise, because fuel-displaced side plate 9 is little with the pump housing 4 area of contact, fuel-displaced side plate 9 pressure sharply raise, pressure is delivered to fuel-displaced side plate 9, and fuel-displaced side plate 9 feeds back on pump cover 11 and the bolt 28, and final pressure all concentrates on pump cover 11 and 4 bolts 28, pump housing boost in pressure, withstand voltage height.Part fluid flows into the end that the pump housing 4 dress assembling flow control guiding valves 20 have spring 19 simultaneously.And damping hole front end fluid enters the flow control relief valve without spring 19.The flow of damping hole can produce pressure reduction owing to flowing through, when pressure reduction during more than or equal to spring 19 power the balance of guiding valve 20 be broken, guiding valve 20 produces mobile, using oil pocket communicates with the oil spilling mouth, fuel-displaced cavity segment flow overflows through flow-off, makes output flow be tending towards constant, realizes the flow control principle.Act on the fluid of spring 19 ends, act on the cone valve 30 by the pressure damping hole on the conical valve base, when system pressure during more than or equal to pre-set up the severals of spring 33, cone valve 30 is opened and overflows, has limited the maximum pressure of system, realization pressure control principle.Bearing 22 and composite bearing 14 are installed on the axle 27, and bearing 22 and composite bearing 14 guarantee centering and the transmission accuracy of axles 27, the guaranteed performance accuracy, and back-up ring 3 and back-up ring 23 are with bearing 22 axial restraints.Oil pocket is provided with outside framework oil seal 21, and outside framework oil seal 21 sealing functions are for guaranteeing that air is not inhaled into oil pocket and fluid does not leak.Helical gear 24 is connected with axle by flat key 1, helical gear 24 carrying pump input power transmission.Sliding valve structure is provided with spacer 31 between guiding valve 20 and the valve seat 29 as shown in Figure 3, is provided with fine setting pad 32 between guiding valve 20 and the cone valve 30.
Claims (5)
1. pressure-resistant steering pump, it is characterized in that: the pump housing (4) one ends are installed pump cover (11), stator (12) is installed in the pump housing (4), rotor (13) is enclosed within stator (12) endoporus, fuel-displaced side plate (9) is installed in the pump housing (4), stator (12) and rotor (13) inboard and the pump housing (4) negative camber edge mate, stator (12) negative camber, pump cover (11) end face, fuel-displaced side plate (9) forms closed containing cavity, in rotor (13) slotted eye blade (15) is installed, axle (27) is connected with rotor (13), guiding valve (20) is installed in the interior bottom of the pump housing (4), spring (19) is installed on the guiding valve (20), and the pump housing (4) is provided with outside framework oil seal (21), filler opening, oil outlet.
2. pressure-resistant steering pump according to claim 1, it is characterized in that: described stator (12), fuel-displaced side plate (9) are connected 11 with pump cover) connect by locating stud (10).
3. pressure-resistant steering pump according to claim 1 is characterized in that: upper bearing (22) and the composite bearing (14) installed of described axle (27).
4. pressure-resistant steering pump according to claim 1 is characterized in that: described axle (27) one ends are installed helical gear (24), and helical gear (24) is connected with axle (27) by flat key (1).
5. pressure-resistant steering pump according to claim 1 is characterized in that: be provided with spacer (31) between described guiding valve (20) and the valve seat (29), be provided with fine setting pad (32) between guiding valve (20) and the cone valve (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310193218 CN103321898A (en) | 2013-05-23 | 2013-05-23 | Pressure resistant steering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310193218 CN103321898A (en) | 2013-05-23 | 2013-05-23 | Pressure resistant steering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103321898A true CN103321898A (en) | 2013-09-25 |
Family
ID=49190869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310193218 Pending CN103321898A (en) | 2013-05-23 | 2013-05-23 | Pressure resistant steering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103321898A (en) |
Cited By (2)
| 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 |
| CN115076096A (en) * | 2022-06-08 | 2022-09-20 | 全兴精工集团有限公司 | Safe and stable's gear pump |
-
2013
- 2013-05-23 CN CN 201310193218 patent/CN103321898A/en active Pending
Cited By (2)
| 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 |
| CN115076096A (en) * | 2022-06-08 | 2022-09-20 | 全兴精工集团有限公司 | Safe and stable's gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |