CN2643028Y - Automobile steering oil pump - Google Patents
Automobile steering oil pump Download PDFInfo
- Publication number
- CN2643028Y CN2643028Y CN 03210453 CN03210453U CN2643028Y CN 2643028 Y CN2643028 Y CN 2643028Y CN 03210453 CN03210453 CN 03210453 CN 03210453 U CN03210453 U CN 03210453U CN 2643028 Y CN2643028 Y CN 2643028Y
- Authority
- CN
- China
- Prior art keywords
- oil
- pump
- pump housing
- hole
- constant current
- 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
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- Power Steering Mechanism (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model relates to the technical field of oil pump, in particular to a steering pump used in the automobile steering system. In view of the problems of the existing automobile steering pump during operation, i.e. when the rotational speed of engine increases, the flow of the steering pump can rise, leading to the waving of steering wheel of automobile which is not easy to control; and the defects that valve jam often occur in the automobile steering pump, and also quick wearing and short service life exist during operation, the utility model provides an automobile steering pump that can output constant flow, control the highest pressure of steering system, and have long service life during operation. The utility model includes pump body, spring, flow valve plug, shaft, front thrust plate, stator, rotor, back cover, back trust plate and constant flow safety valve. The end of shaft inserts into the inner chamber of the pump from the shaft hole at the front of pump body. The front thrust plate, stator, rotor and back trust plate are installed into the inner chamber from the opening at the back of the pump body in proper order. The back cover is installed at the opening of the back of the pump body and the rotor is fixed on the shaft.
Description
Technical field
The utility model relates to oil pump technology field, particularly a kind of motor turning oil pump that is used for automobile steering system.
Background technique
The hydraulic power-assisted steering system that is used for automobile steering system at present comprises steerig pump and direction machine.Wherein, existing motor turning oil pump is made up of the pump housing and pump cover etc., and when engine speed increased, the flow of steerig pump can raise, and then can cause vehicle steering wheel " unstable ", bad control; And existing motor turning oil pump valve in use also often to occur stuck, quick abrasion, the deficiency that working life is short.
Summary of the invention
The utility model is in use existing when engine speed increases at existing motor turning oil pump, and the flow of steerig pump can raise, and causes vehicle steering wheel " unstable ", bad control; And in use the motor turning oil pump valve often to occur stuck, quick abrasion, the deficiency that working life is short, provide a kind of in use can the constant output flow, can control the steering system maximum pressure, the motor turning oil pump of long service life.
The technical solution adopted in the utility model is finished in the following way: the utility model motor turning oil pump comprises the pump housing, spring, Flow valve plug screw, gear, axle, front thrust plate, stator, rotor, bonnet, rear thrust plate and constant current safety valve, gear is contained in the head of axle, the afterbody of axle is inserted into the inner chamber of the pump housing from the axis hole of pump housing front end, is provided with outside framework oil seal between the axis hole of the axle and the pump housing; Front thrust plate, stator, rotor, rear thrust plate are successively from the opening of pump housing rear end is packed the inner chamber of the pump housing into, bonnet is contained in the opening of pump housing rear end, and wherein, rotor is fixed on the axle, on rotor, be provided with blade, be provided with spring between bonnet in pump housing inner chamber and the rear thrust plate; On the pump housing, be provided with oil sucting cavity, go out oil pocket, constant current safety valve valve opening, oblique oil-through hole, damping hole and straight oil-through hole, pressure spring, spool, look nut, in spring and pressure regulation pad are packed constant current safety valve valve opening into from the constant current safety valve valve orifice of the pump housing successively, on spool, be provided with steel ball seat, steel ball is located on the steel ball seat, the Flow valve plug screw is equipped with at valve orifice place at pump housing constant current safety valve, wherein tiltedly oil-through hole with directly be communicated with by damping hole between the oil-through hole, be provided with the spill port that communicates with oil sucting cavity at constant current safety valve valve opening middle part, on look nut, be provided with damping hole, on spool, be provided with two place's shoulders, be provided with a radial hole between two shoulders, the thin end of spool is an oil outlet, oil outlet place at the thin end of spool is provided with throttle orifice, is provided with the damping hole that can guide high pressure oil into look nut one end behind throttle orifice.When pressure reaches the pressure of prior setting, the steel ball pressure spring is thrown off with look nut, at this moment, the pressure oil at oil outlet place flows back to oil sucting cavity by damping hole, look nut, spool radial hole, thereby has controlled the maximum pressure (being the pressure of steering system) of oil pump.Otherwise high pressure oil is guided look nut one end into by damping hole, and pressure can descend to some extent, adds the pressure that spring force just in time equals the oil outlet place, makes spool keep balance.When engine speed raise, pump speed increased, and flow also increases thereupon.Because caliber is constant, the pressure at oil outlet place also increases thereupon, and spool moves down, in new position balance.When spool one shoulder moved down into the set spill port place of constant current safety valve valve opening, unnecessary oil just flowed back to oil sucting cavity, thereby had guaranteed output flow constant of oil pump.
The utility model motor turning oil pump is compared with existing motor turning oil pump, and having in use can the constant output flow, can control the characteristics of steering system maximum pressure.The utility model is particularly suitable as the motor turning oil pump in the automobile steering system.
Description of drawings
Fig. 1 is the structural representation of motor turning oil pump.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 2.
Embodiment
Contrast accompanying drawing below, the utility model is described in further detail by embodiment.
With reference to accompanying drawing 1 to accompanying drawing 3, the utility model motor turning oil pump comprises the pump housing 1, spring 6, Flow valve plug screw 7, gear 8, axle 10, front thrust plate 12, stator 13, rotor 15, bonnet 16, rear thrust plate 17 and constant current safety valve, gear 8 is contained in the head of axle 10, the afterbody of axle 10 is inserted into the inner chamber of the pump housing 1 from the axis hole of the pump housing 1 front end, is provided with outside framework oil seal 9 between the axis hole of the axle 10 and the pump housing 1; Front thrust plate 12, stator 13, rotor 15, rear thrust plate 17 are successively from the opening of the pump housing 1 rear end is packed the inner chamber of the pump housing 1 into, bonnet 16 is contained in the opening of the pump housing 1 rear end, wherein, rotor 15 is fixed on the axle 10, on rotor 15, be provided with blade 14, be provided with spring between bonnet 16 in the pump housing 1 inner chamber and the rear thrust plate 17; On the pump housing 1, be provided with oil sucting cavity 18, go out oil pocket 19, constant current safety valve valve opening, oblique oil-through hole 22, damping hole 23 and straight oil-through hole 24, pressure spring 2, spool 4, look nut 5, in spring 6 and pressure regulation pad 20 are packed constant current safety valve valve opening into from the constant current safety valve valve orifice of the pump housing 1 successively, on spool 4, be provided with steel ball seat 3, steel ball 21 is located on the steel ball seat 3, Flow valve plug screw 7 is equipped with at valve orifice place at the pump housing 1 constant current safety valve, wherein tiltedly oil-through hole 22 with directly be communicated with by damping hole 23 between the oil-through hole 24, be provided with the spill port that communicates with oil sucting cavity 18 at constant current safety valve valve opening middle part, on look nut 5, be provided with damping hole, on spool 4, be provided with two place's shoulders, be provided with a radial hole between two shoulders, the thin end of spool 4 is an oil outlet, oil outlet place at spool 4 thin ends is provided with throttle orifice, is provided with the damping hole that can guide high pressure oil into look nut 5 one ends behind throttle orifice.
Claims (4)
1, a kind of motor turning oil pump, it is characterized in that it comprises the pump housing, spring, the Flow valve plug screw, gear, axle, front thrust plate, stator, rotor, bonnet, rear thrust plate and constant current safety valve, the afterbody of axle is inserted into the inner chamber of the pump housing from the axis hole of pump housing front end, between the axis hole of the axle and the pump housing, be provided with outside framework oil seal, front thrust plate, stator, rotor, rear thrust plate is successively from the opening of pump housing rear end is packed the inner chamber of the pump housing into, bonnet is contained in the opening of pump housing rear end, wherein, rotor is fixed on the axle, on rotor, be provided with blade, be provided with spring between bonnet in pump housing inner chamber and the rear thrust plate, on the pump housing, be provided with oil sucting cavity, go out oil pocket, constant current safety valve valve opening, oblique oil-through hole, damping hole and straight oil-through hole.
2, motor turning oil pump according to claim 1, it is characterized in that the constant current safety valve comprises constant current safety valve valve opening, pressure spring, spool, look nut, spring and pressure regulation pad, pressure spring wherein, spool, look nut, in spring and pressure regulation pad are packed constant current safety valve valve opening into from the constant current safety valve valve orifice of the pump housing successively, on spool, be provided with steel ball seat, steel ball is located on the steel ball seat, the Flow valve plug screw is equipped with at valve orifice place at pump housing constant current safety valve, be provided with the spill port that communicates with oil sucting cavity at constant current safety valve valve opening middle part, on look nut, be provided with damping hole.
3, motor turning oil pump according to claim 1 is characterized in that oblique oil-through hole and directly is communicated with by damping hole between the oil-through hole.
4, according to claim 2 or 3 described motor turning oil pumps, it is characterized in that on spool, being provided with two place's shoulders, be provided with a radial hole between two shoulders, the thin end of spool is an oil outlet, oil outlet place at the thin end of spool is provided with throttle orifice, is provided with the damping hole that can guide high pressure oil into look nut one end behind throttle orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210453 CN2643028Y (en) | 2003-09-09 | 2003-09-09 | Automobile steering oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210453 CN2643028Y (en) | 2003-09-09 | 2003-09-09 | Automobile steering oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643028Y true CN2643028Y (en) | 2004-09-22 |
Family
ID=34289380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210453 Expired - Fee Related CN2643028Y (en) | 2003-09-09 | 2003-09-09 | Automobile steering oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643028Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404344C (en) * | 2006-06-13 | 2008-07-23 | 孙晓妮 | Centrifugal valve for automobile steering |
| CN102705231A (en) * | 2012-05-31 | 2012-10-03 | 陕西秦川机械发展股份有限公司 | Double-rotation-direction steering pump for automobile emergency steering system |
| CN105134589A (en) * | 2015-09-01 | 2015-12-09 | 芜湖德孚转向系统有限公司 | Stator assembly capable of changing pump displacement |
| CN106494495A (en) * | 2015-09-04 | 2017-03-15 | 株式会社电装 | Driver element and electric boosting steering system |
-
2003
- 2003-09-09 CN CN 03210453 patent/CN2643028Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404344C (en) * | 2006-06-13 | 2008-07-23 | 孙晓妮 | Centrifugal valve for automobile steering |
| CN102705231A (en) * | 2012-05-31 | 2012-10-03 | 陕西秦川机械发展股份有限公司 | Double-rotation-direction steering pump for automobile emergency steering system |
| CN102705231B (en) * | 2012-05-31 | 2014-09-03 | 陕西秦川机械发展股份有限公司 | Double-rotation-direction steering pump for automobile emergency steering system |
| CN105134589A (en) * | 2015-09-01 | 2015-12-09 | 芜湖德孚转向系统有限公司 | Stator assembly capable of changing pump displacement |
| CN106494495A (en) * | 2015-09-04 | 2017-03-15 | 株式会社电装 | Driver element and electric boosting steering system |
| CN106494495B (en) * | 2015-09-04 | 2019-12-03 | 株式会社电装 | Driving unit and electric boosting steering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040922 Termination date: 20100909 |