CN104071217A - Hydraulic power steering pump - Google Patents
Hydraulic power steering pump Download PDFInfo
- Publication number
- CN104071217A CN104071217A CN201410225239.9A CN201410225239A CN104071217A CN 104071217 A CN104071217 A CN 104071217A CN 201410225239 A CN201410225239 A CN 201410225239A CN 104071217 A CN104071217 A CN 104071217A
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- CN
- China
- Prior art keywords
- hydraulic power
- steering pump
- guiding valve
- power steering
- sliding 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
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Abstract
The invention discloses a hydraulic power steering pump. A spring is arranged between the back end of a sliding valve and a pump body; a screw plug is mounted at the front part of the sliding valve; a damping sleeve is arranged between the screw plug and the sliding valve; and the front end of a valve rod of the sliding valve is an inverted cone structure with a taper. The hydraulic power steering pump provides a flow curve downtrend structure, so that the hand feeling of a car in the high-speed driving is increased, a steering wheel is not drifted, and the safety performance of the car in the high-speed driving is guaranteed.
Description
Technical field
The present invention relates to automobile steering system power-assisted oil pump field.
Background technology
Hydraulic booster vehicle steering system is along with the economic development of China, and the fast development of auto trade, and safety and the traveling comfort of user to vehicle drive also progressively improves.Hydraulic power-assist steering system is in the time that driving engine is changed by medium-to-high speed, and it is constant that the flow of oil pump keeps, and can make automobile bearing circle in the time running at high speed unstable, affects vehicle safety performance.
Summary of the invention
In order to solve the unstable problem of automobile bearing circle in the time running at high speed, the invention provides a kind of novel hydraulic servo-steering pump configuration.
The technical scheme that the present invention adopted is for achieving the above object: hydraulic power-assisted steering pump, between guiding valve 3 rear ends and the pump housing 1, be provided with spring 2, and the anterior plug screw 5 of installing of guiding valve 3, is provided with damping sleeve 4 between plug screw 5 and guiding valve.
The valve rod front end of described guiding valve 3 is the inverted cone-shaped structure with tapering.
Hydraulic power-assisted steering pump of the present invention, has proposed flow curve downswing structure, makes automobile in the time running at high speed, more be added with feel, and bearing circle can be not unstable, the safety performance while having ensured galloping.
Brief description of the drawings
Fig. 1 is the structure principle chart in hydraulic power-assisted steering pump low speed driving situation of the present invention.
Fig. 2 is the structure principle chart that hydraulic power-assisted steering pump of the present invention drives at moderate speed in situation.
Fig. 3 is the structure principle chart that hydraulic power-assisted steering pump of the present invention is run at high speed in situation.
In figure: the pump housing 1, spring 2, guiding valve 3, damping sleeve 4, plug screw 5, O type circle 6.
Detailed description of the invention
Hydraulic power-assisted steering pump configuration of the present invention as Figure 1-3, is provided with spring 2 between guiding valve 3 rear ends and the pump housing 1, and the anterior plug screw 5 of installing of guiding valve 3, is provided with damping sleeve 4 between plug screw 5 and guiding valve, and the valve rod front end of guiding valve 3 is the inverted cone-shaped structure with tapering.
Principle of work is: steering pump fluid flow in the time of low speed driving enters from B1, and the gap forming by damping sleeve 4 and guiding valve 3 enters plug screw 5 middle part annular chambers, finally flows out pump housing approach axis machine by C1.Steering pump is because guiding valve 3 two ends forcees balance change in the time driving at moderate speed, and guiding valve 3 is moved to the left, and the fluid part flowing into from B2 flows into deflector by damping sleeve 4 through C2, partly through A2 oil sump tank, and flow substantially constant.The principle of work of steering pump in the time running at high speed is identical during with low speed, but because slide valve rod is designed to tapering, diameter increases gradually, after causing slide valve rod to enter the damping sleeve 4 and gap of its formation diminishes, therefore flow into the flow of C3 diminishes from B3, residue fluid flows back to fuel tank by B3 through A3, thereby it is on a declining curve to reach flow curve.
The present invention is described by embodiment, and those skilled in the art know, without departing from the spirit and scope of the present invention, can carry out various changes or equivalence replacement to these features and embodiment.In addition, under instruction of the present invention, can modify to adapt to concrete situation and material and can not depart from the spirit and scope of the present invention these features and embodiment.Therefore, the present invention is not subject to the restriction of specific embodiment disclosed herein, and the embodiment within the scope of all the application's of falling into claim belongs to protection scope of the present invention.
Claims (2)
1. hydraulic power-assisted steering pump, is characterized in that: between guiding valve (3) rear end and the pump housing (1), be provided with spring (2), the anterior plug screw (5) of installing of guiding valve (3), is provided with damping sleeve (4) between plug screw (5) and guiding valve.
2. hydraulic power-assisted steering pump according to claim 1, is characterized in that: the valve rod front end of described guiding valve (3) is the inverted cone-shaped structure with tapering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410225239.9A CN104071217A (en) | 2014-05-27 | 2014-05-27 | Hydraulic power steering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410225239.9A CN104071217A (en) | 2014-05-27 | 2014-05-27 | Hydraulic power steering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104071217A true CN104071217A (en) | 2014-10-01 |
Family
ID=51592917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410225239.9A Pending CN104071217A (en) | 2014-05-27 | 2014-05-27 | Hydraulic power steering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104071217A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105644619A (en) * | 2015-12-28 | 2016-06-08 | 全兴精工集团有限公司 | Intelligent hydraulic power steering system and control method thereof |
| CN105667582A (en) * | 2015-12-28 | 2016-06-15 | 全兴精工集团有限公司 | Electric hydraulic power steering pump for new-energy pure electric bus and control method for electric hydraulic power steering pump |
| CN106314531A (en) * | 2015-07-05 | 2017-01-11 | 深圳市沃特玛电池有限公司 | Energy-saving control method of electro-hydraulic power steering pump |
| CN109467013A (en) * | 2018-12-29 | 2019-03-15 | 航天重型工程装备有限公司 | A kind of snatch vehicle |
-
2014
- 2014-05-27 CN CN201410225239.9A patent/CN104071217A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314531A (en) * | 2015-07-05 | 2017-01-11 | 深圳市沃特玛电池有限公司 | Energy-saving control method of electro-hydraulic power steering pump |
| CN105644619A (en) * | 2015-12-28 | 2016-06-08 | 全兴精工集团有限公司 | Intelligent hydraulic power steering system and control method thereof |
| CN105667582A (en) * | 2015-12-28 | 2016-06-15 | 全兴精工集团有限公司 | Electric hydraulic power steering pump for new-energy pure electric bus and control method for electric hydraulic power steering pump |
| CN105644619B (en) * | 2015-12-28 | 2017-11-24 | 全兴精工集团有限公司 | Intelligent hydraulic servo steering system and its control method |
| CN109467013A (en) * | 2018-12-29 | 2019-03-15 | 航天重型工程装备有限公司 | A kind of snatch vehicle |
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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: 20141001 |