CN104129427A - Hydraulic power steering pump and steering system thereof - Google Patents
Hydraulic power steering pump and steering system thereof Download PDFInfo
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- CN104129427A CN104129427A CN201410367743.2A CN201410367743A CN104129427A CN 104129427 A CN104129427 A CN 104129427A CN 201410367743 A CN201410367743 A CN 201410367743A CN 104129427 A CN104129427 A CN 104129427A
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- pipe
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Abstract
The invention discloses a hydraulic power steering pump and a steering system thereof. An overflow valve is arranged in the steering pump, an overflow opening is formed in the wall of a cavity body of the steering pump at the position corresponding to the overflow valve, the overflow opening is communicated with an oil suction chamber in the steering pump through an oil passage in the steering pump, and the end opening of the overflow opening is connected with an overflow pipe which is used for being communicated with a steering oil tank. The steering system comprises a steering gear and the steering oil tank, wherein an oil return opening of the steering gear is connected with the steering oil tank through an oil return pipe. The steering system also comprises the hydraulic power steering pump, the steering oil tank is connected with an oil inlet of the steering pump through an oil suction pipe, an oil outlet of the steering pump is connected with the steering gear through a high-pressure oil pipe, and the overflow opening of the steering pump is connected with the steering oil tank through the overflow pipe. On the condition of high rotating speed, a part of overflowing hydraulic oil flows through the inner part of the steering pump to be directly applied to the next circulation, and the other part of the overflowing hydraulic oil flows back to the steering oil tank through an outer oil pipe to be again applied to the circulation, so that sufficient oil suction on the condition of high rotating speed is ensured, and the temperature rise is relatively small.
Description
Technical field
The present invention relates to Vehicular turn technical field, especially relate to a kind of hydraulic power-assisted steering pump and steering swivel system thereof.
Background technology
Hydraulic power-assist steering system mainly contains two kinds of different circulations at present, no matter adopt that circulation all to have certain deficiency, two kinds of circulations are respectively:
A kind of is interior circulation, the hydraulic oil of interior circulation steering swivel system overflow is directly got back to the large chamber of steering pump, participate in circulation next time, can avoid occurring the problem of oil suction deficiency, guarantee system stable output, but when high rotating speed, fluid total flow increases severely, most of fluid is in the inner reciprocation cycle of steering pump, and power consumption is large, temperature rise is large, and system stability is poor, fragile;
Another kind of is outer circulation, the hydraulic oil of outer circulation steering swivel system overflow is got back to steering oil reservoir by the road, again participates in system works, and this state is beneficial to fluid cooling, whole system temperature rise is relatively little, can extend system reliability, but when high rotating speed, oil pump oil absorption increases, easily cause oil suction not enough, even air amount, causes system works abnormal, affects driving experience and safety.
Summary of the invention
Not enough for prior art, technical matters to be solved by this invention is to provide a kind of hydraulic power-assisted steering pump and steering swivel system thereof, when reaching high rotating speed oil suction sufficient, the object that temperature rise is relatively little.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
This hydraulic power-assisted steering pump, in described steering pump, be provided with by pass valve, on the cavity wall of steering pump, corresponding by pass valve position is provided with outgate, described outgate is connected with the oil sucting cavity in steering pump by the oil duct of steering pump inside, and the port of outgate is connected with the overflow pipe for being connected with steering oil reservoir.
Wherein, described overflow pipe is positioned at the outside of steering pump.
The metal tube of tool for dispelling the heat on described overflow pipe.
This steering swivel system, comprise deflector and steering oil reservoir, the return opening of described deflector is connected by oil return pipe with steering oil reservoir, also comprise hydraulic power-assisted steering pump described above, described steering oil reservoir is connected by oil suction pipe with the oil inlet of steering pump, the oil outlet of described steering pump is connected by high pressure fuel pipe with deflector, and the outgate of described steering pump is connected by overflow pipe with steering oil reservoir.
Wherein, the helical structure of tool for dispelling the heat on described oil return pipe.
The present invention compared with prior art, has the following advantages:
During high rotating speed, the hydraulic oil of part overflow is participated in circulation next time directly through steering pump inside, the hydraulic oil of another part overflow is got back to steering oil reservoir through external oil pipe, again participate in periodical duty, while having guaranteed high rotating speed, oil suction is sufficient, guaranteed that again temperature rise is relatively little, guaranteed stability and the reliability of system works.
Accompanying drawing explanation
Below the expressed content of each width accompanying drawing of this specification sheets and the mark in figure are briefly described:
Fig. 1 is steering swivel system structural representation of the present invention.
Fig. 2 is by pass valve place enlarged diagram in steering pump of the present invention.
In figure: 1. steering pump, 2. deflector, 3. steering oil reservoir, 4. high pressure fuel pipe, 5. oil return pipe, 6. overflow pipe, 7. oil suction pipe, a. outgate, b. obstruction, c. by pass valve, d. high-voltage oil cavity, e. high pressure hydraulic fluid port.
The specific embodiment
Contrast accompanying drawing below, the description by embodiment, is described in further detail the specific embodiment of the present invention.
As depicted in figs. 1 and 2, this hydraulic power-assisted steering pump, wherein, in steering pump 1, be provided with by pass valve c, on the cavity wall of steering pump 1, corresponding by pass valve c position is provided with outgate a, and outgate a is connected with the oil sucting cavity in steering pump 1 by the oil duct of steering pump 1 inside, and oil sucting cavity is the large chamber of steering pump stator, the port of outgate a is connected with the overflow pipe 6 for being connected with steering oil reservoir 3, and overflow pipe 6 is positioned at the outside of steering pump 1.
High-voltage oil cavity d in steering pump 1 seals by stopping up b, and by high pressure hydraulic fluid port e outputting power hydraulic oil, by pass valve c is positioned at high-voltage oil cavity d, and by the movement of by pass valve c, controlling water kick mouth a closes or opens.
This steering swivel system, comprise deflector 2 and steering oil reservoir 3 and above-mentioned steering pump 1, the return opening of deflector 2 is connected by oil return pipe 5 with steering oil reservoir 3, steering oil reservoir 3 is connected by oil suction pipe 7 with the oil inlet of steering pump 1, the high pressure hydraulic fluid port e of steering pump 1 is connected by high pressure fuel pipe 4 with deflector 2, the oil outlet that is steering pump is connected by high pressure fuel pipe with deflector, and the outgate a of steering pump 1 is connected by overflow pipe 6 with steering oil reservoir 3.
Wherein, on oil return pipe 5 and overflow pipe 6, all have the helical structure for dispelling the heat, helical structure is spiral tube structure, by helical structure, reduces oil temperature, and overflow pipe is metal tube, and radiating effect is better, guarantees system works reliability.
During high rotating speed, in high-voltage oil cavity, hydraulic oil promotion by pass valve moves right, and is communicated with high-voltage oil cavity and outgate, and the hydraulic oil of a part of overflow flow to oil sucting cavity through the oil duct of steering pump inside, participates in circulation next time directly, and while guaranteeing high rotating speed, oil suction is sufficient; The hydraulic oil of another part overflow is got back to steering oil reservoir through outside overflow pipe, again participates in periodical duty, and overflow pipe and steering oil reservoir by steering pump outside dispel the heat, and guarantees that temperature rise is relatively little, guarantees stability and the reliability of system works.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that design of the present invention and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (5)
1. a hydraulic power-assisted steering pump, in described steering pump (1), be provided with by pass valve (c), on the cavity wall of steering pump (1), corresponding by pass valve position is provided with outgate (a), it is characterized in that: described outgate (a) is connected with the oil sucting cavity in steering pump (1) by the inner oil duct of steering pump (1), and the port of outgate (a) is connected with the overflow pipe (6) for being connected with steering oil reservoir (3).
2. hydraulic power-assisted steering pump as claimed in claim 1, is characterized in that: described overflow pipe (6) is positioned at the outside of steering pump (1).
3. hydraulic power-assisted steering pump as claimed in claim 1, is characterized in that: the metal tube of the upper tool of described overflow pipe (6) for dispelling the heat.
4. a steering swivel system, comprise deflector (2) and steering oil reservoir (3), the return opening of described deflector (2) is connected by oil return pipe (5) with steering oil reservoir (3), it is characterized in that: also comprise hydraulic power-assisted steering pump as described in claims 1 to 3 any one, described steering oil reservoir (3) is connected by oil suction pipe (7) with the oil inlet of steering pump (1), the oil outlet of described steering pump (1) is connected by high pressure fuel pipe (4) with deflector (2), and the outgate (a) of described steering pump (1) is connected by overflow pipe (6) with steering oil reservoir (3).
5. steering swivel system as claimed in claim 4, is characterized in that: the helical structure of the upper tool of described oil return pipe (5) for dispelling the heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367743.2A CN104129427A (en) | 2014-07-29 | 2014-07-29 | Hydraulic power steering pump and steering system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367743.2A CN104129427A (en) | 2014-07-29 | 2014-07-29 | Hydraulic power steering pump and steering system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104129427A true CN104129427A (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410367743.2A Pending CN104129427A (en) | 2014-07-29 | 2014-07-29 | Hydraulic power steering pump and steering system thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN104129427A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155336A (en) * | 1998-06-30 | 2000-12-05 | Nelson Industries, Inc. | Power steering reservoir and cooler |
| CN2900286Y (en) * | 2006-05-09 | 2007-05-16 | 重庆大江工业(集团)有限责任公司 | High safety automobile hydraulic power steering system |
| CN201300884Y (en) * | 2008-03-10 | 2009-09-02 | 北汽福田汽车股份有限公司 | A truck steering hydraulic circuit system and a truck |
| CN201769876U (en) * | 2009-10-14 | 2011-03-23 | 大连液压件有限公司 | Internal-external double-overflowing circulating type automotive power-assisted steering vane pump |
| CN101988495A (en) * | 2009-08-05 | 2011-03-23 | 广西玉柴机器股份有限公司 | Steering pump of automobile power steering system |
| CN103148059A (en) * | 2013-03-18 | 2013-06-12 | 十堰安远专用汽车有限公司 | Cooling oil pipe and hydraulic oil cooling system for steering engine |
| CN203306088U (en) * | 2013-05-31 | 2013-11-27 | 长城汽车股份有限公司 | Hydraulic steering heat radiation structure |
| CN203358671U (en) * | 2013-06-21 | 2013-12-25 | 中国重汽集团济南动力有限公司 | Hydraulic steering cooling module device |
| CN203381679U (en) * | 2013-05-29 | 2014-01-08 | 安徽江淮汽车股份有限公司 | Mining dump truck power-assisted steering device |
| CN103912488A (en) * | 2014-04-21 | 2014-07-09 | 全兴精工集团有限公司 | Novel steering oil pump of self-unloading heavy truck |
| CN204077784U (en) * | 2014-07-29 | 2015-01-07 | 芜湖佳景科技有限公司 | Hydraulic power-assisted steering pump and steering swivel system thereof |
-
2014
- 2014-07-29 CN CN201410367743.2A patent/CN104129427A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155336A (en) * | 1998-06-30 | 2000-12-05 | Nelson Industries, Inc. | Power steering reservoir and cooler |
| CN2900286Y (en) * | 2006-05-09 | 2007-05-16 | 重庆大江工业(集团)有限责任公司 | High safety automobile hydraulic power steering system |
| CN201300884Y (en) * | 2008-03-10 | 2009-09-02 | 北汽福田汽车股份有限公司 | A truck steering hydraulic circuit system and a truck |
| CN101988495A (en) * | 2009-08-05 | 2011-03-23 | 广西玉柴机器股份有限公司 | Steering pump of automobile power steering system |
| CN201769876U (en) * | 2009-10-14 | 2011-03-23 | 大连液压件有限公司 | Internal-external double-overflowing circulating type automotive power-assisted steering vane pump |
| CN103148059A (en) * | 2013-03-18 | 2013-06-12 | 十堰安远专用汽车有限公司 | Cooling oil pipe and hydraulic oil cooling system for steering engine |
| CN203381679U (en) * | 2013-05-29 | 2014-01-08 | 安徽江淮汽车股份有限公司 | Mining dump truck power-assisted steering device |
| CN203306088U (en) * | 2013-05-31 | 2013-11-27 | 长城汽车股份有限公司 | Hydraulic steering heat radiation structure |
| CN203358671U (en) * | 2013-06-21 | 2013-12-25 | 中国重汽集团济南动力有限公司 | Hydraulic steering cooling module device |
| CN103912488A (en) * | 2014-04-21 | 2014-07-09 | 全兴精工集团有限公司 | Novel steering oil pump of self-unloading heavy truck |
| CN204077784U (en) * | 2014-07-29 | 2015-01-07 | 芜湖佳景科技有限公司 | Hydraulic power-assisted steering pump and steering swivel system thereof |
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Application publication date: 20141105 |
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| RJ01 | Rejection of invention patent application after publication |