CN108216359A - A kind of electric hydraulic power-assisted steering structure - Google Patents
A kind of electric hydraulic power-assisted steering structure Download PDFInfo
- Publication number
- CN108216359A CN108216359A CN201611196349.2A CN201611196349A CN108216359A CN 108216359 A CN108216359 A CN 108216359A CN 201611196349 A CN201611196349 A CN 201611196349A CN 108216359 A CN108216359 A CN 108216359A
- Authority
- CN
- China
- Prior art keywords
- steering
- motor
- pump
- oil
- shaft
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
- B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a kind of new electric hydraulic power-assisted steering structures, including steering motor, steering pump, the steering motor includes motor shaft, drive end bearing bracket, the steering pump includes oil pump shaft, housing, the steering pump housing connects the steering motor drive end bearing bracket, the oil pump axis connection of the motor shaft of the steering motor and the steering pump, the motor shaft is connect with the oil pump shaft by spline, improve the concentricity of the motor shaft and the oil pump shaft, reduce the probability of oil leak, and gasket is set, the sealing devices such as oil sealing, hydraulic oil is further avoided to enter the steering motor.
Description
Technical field
The present invention relates to electric hydraulic power-assisted steering motors, and in particular to the sealing of steering motor and steering pump and reliable
Structure.
Background technology
New-energy automobile is wanted to realize pure motor driving, must just use electric boosting steering system, and now using most
More is electric hydraulic power-assisted steering system, and electric hydraulic power-assisted steering system includes motor and oil pump, and oil is driven using motor
It pumps to provide power steering, it is not high however, as the concentricity of motor shaft and oil pump shaft, it can cause during long-term use
Oil pump oil leak, and flow to inside motor, so as to influence the normal operation of motor, the working efficiency and service life of motor are reduced,
It would therefore be highly desirable to a set of new electric hydraulic power-assisted steering system comes the normal operation of support vehicles and making for servo steering system
Use state.
Invention content
To solve the above-mentioned problems, the present invention proposes a kind of new electric hydraulic power-assisted steering structure, including steering motor,
Steering pump, the steering motor include motor shaft, drive end bearing bracket, and the steering pump includes oil pump shaft, housing, the steering oil
Pump case connects the oil pump axis connection of the steering motor drive end bearing bracket, the motor shaft of the steering motor and the steering pump,
The motor shaft is connect with the oil pump shaft by spline, improves the concentricity of the motor shaft and the oil pump shaft, is reduced
The probability of oil leak, and the sealing devices such as gasket, oil sealing are set, grease is further avoided to enter the steering motor.
To achieve the above object, the technical scheme is that：
A kind of electric hydraulic power-assisted steering structure, including steering motor, steering pump, the steering motor includes motor
Axis, drive end bearing bracket, the steering pump include oil pump shaft, housing, and the steering pump housing connects the steering motor drive end bearing bracket,
The oil pump axis connection of the motor shaft of the steering motor and the steering pump, the motor shaft pass through spline with the oil pump shaft
Connection.
The motor shaft end sets internal spline, the external splines of the oil pump shaft end setting and internal spline cooperation or
The motor shaft end sets external splines, the internal spline of the oil pump shaft end setting and external splines cooperation.
Gasket is set between the steering pump housing and the steering motor drive end bearing bracket.
Oil sealing is set between the drive end bearing bracket of the steering motor and the motor shaft, and further, the oil sealing is unidirectional oil
Envelope, and the oil seal lip is outwardly, for preventing the hydraulic oil in the steering pump from entering the steering motor.
Compared to existing electric hydraulic power-assisted steering structure, the present invention has remarkable advantage and advantageous effect, is embodied as：
1. using the electric hydraulic power-assisted steering structure of the present invention, motor shaft is connect with oil pump shaft by spline, saves biography
The shaft coupling of system can save cost, can also improve concentricity；
2. using the electric hydraulic power-assisted steering structure of the present invention, sealing is set between motor front end cover and oil pump case
Oil sealing is set between pad, motor front end cover and motor shaft, hydraulic oil is further prevented to enter motor, ensure that the use effect of motor
Rate improves the service life of motor.
Description of the drawings
Fig. 1 is the axial slices structure diagram of electric hydraulic power-assisted steering structure of the present invention.
Specific embodiment
The specific implementation method of the present invention is as follows：
Existing new-energy automobile is mostly electric hydraulic power-assisted steering with power-assisted steering, electric hydraulic power-assisted steering system packet
Steering motor and steering pump are included, steering motor is connect with steering pump, steering pump is driven to provide steering by steering motor
Power-assisted, however due to the limitation of processing technology during real use, the concentricity of steering motor and steering pump is frequently not
Very high, this will result in steering and the loss of steering motor, steering pump can be increased in the process of running, and steering
It just will appear after prolonged use and be seriously worn, eventually lead to the oil leak of steering pump, and institute's leakage pressure oil can enter motor,
It is serious to cause motor damage so as to influence the operating of motor, shorten the service life of entire servo steering system.
For steering pump Leakage is solved, electric hydraulic power-assisted steering structure proposed by the present invention is turned to improving
While motor is with steering pump concentricity, adding in oil sealing, gasket etc. prevents motor oil inlet and steering mechanism's oil leak, below
Technical scheme of the present invention is illustrated with reference to attached drawing：
Fig. 1 is the axial slices structure diagram of electric hydraulic power-assisted steering structure of the present invention, wherein 1 is steering motor, 2
It is drive end bearing bracket for steering pump, 3,4 be motor shaft, 5 be oil pump shaft, 6 be internal spline, 7 be external splines, 8 be oil sealing, 9 is sealing
Pad.
The steering motor 1 is connect with the steering pump 2, and the steering pump 2 is fixedly connected with the steering motor 1
Drive end bearing bracket 3, the steering pump 2 are fixedly connected with the drive end bearing bracket 3, the motor shaft 4 and the oil pump by components such as screws
Axis 5 connects, and the motor shaft 4 is connect with the oil pump shaft 5 by the internal spline 6 with the external splines 7, institute in the present embodiment
It states internal spline 6 and is set to 4 end of motor shaft, the external splines 7 is set to 5 end of oil pump shaft, can also similarly incite somebody to action
The internal spline 6 is set to 5 end of oil pump shaft, and the external splines 7 is set to 4 end of motor shaft.
The housing junction setting gasket 9 of the drive end bearing bracket 3 and the steering pump 2, for extraneous substance to be isolated
Into 2 enclosure interior of the steering motor 1 and the steering pump, while set between the drive end bearing bracket 3 and the motor shaft 4
Oil sealing 8 is put, is entered inside the steering motor 1 for extraneous substance to be isolated, the oil sealing 8 is unidirectional oil sealing, and described
The lip of oil sealing 8 outwardly, for preventing hydraulic oil in the steering pump 2 from entering the steering motor 1.
The motor shaft 4 is directly connected to the oil pump shaft 5 by spline structure, eliminates conventional shaft coupling, not only
It saves material, reduce cost, and save component and eliminate the mismachining tolerance that shaft coupling is brought, it is described so as to improve
The concentricity of motor shaft 4 and the oil pump shaft 5, reduces the loss of the steering motor 1 and the steering pump 2, reduces
The probability of 2 oil leak of steering pump, and by the setting oil sealing at the motor shaft 4 and the drive end bearing bracket 3 and in institute
It states and gasket is set at drive end bearing bracket 3 and the housing of the steering pump 2, further prevent described in the entrance of the external substances such as hydraulic oil
The damage of the steering pump 2 and the steering motor 1 is caused inside steering pump 2 and the steering motor 1, while can also be kept away
Hydraulic oil overflows outward after exempting from oil pump oil seal failure, so as to the working efficiency for improving entire servo steering system and using the longevity
Life.
For the exemplary embodiment for the present invention, it should be understood that be in the protection domain of claims of the present invention
A certain kind demonstrative example therein has the guiding effect that those skilled in the art are realized with corresponding technical solution, and
Non- limitation of the invention.
Claims (7)
1. a kind of electric hydraulic power-assisted steering structure, including steering motor, steering pump, the steering motor include motor shaft,
Drive end bearing bracket, the steering pump include oil pump shaft, housing, which is characterized in that the steering pump housing connection is described to turn to electricity
Machine drive end bearing bracket, the oil pump axis connection of the motor shaft of the steering motor and the steering pump, the motor shaft and the oil pump
Axis is connected by spline.
2. electric hydraulic power-assisted steering structure according to claim 1, which is characterized in that flower in the motor shaft end setting
Key, the external splines of the oil pump shaft end setting and internal spline cooperation.
3. electric hydraulic power-assisted steering structure according to claim 1, which is characterized in that the outer flower of motor shaft end setting
Key, the internal spline of the oil pump shaft end setting and external splines cooperation.
4. electric hydraulic power-assisted steering structure according to claim 1, which is characterized in that the steering pump housing and institute
It states and gasket is set between steering motor drive end bearing bracket.
5. electric hydraulic power-assisted steering structure according to claim 1, which is characterized in that the drive end bearing bracket of the steering motor
Oil sealing is set between the motor shaft.
6. electric hydraulic power-assisted steering structure according to claim 5, which is characterized in that the oil sealing is unidirectional oil sealing.
7. electric hydraulic power-assisted steering structure according to claim 6, which is characterized in that the oil seal lip outwardly, is used
Enter the steering motor in preventing the hydraulic oil in the steering pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196349.2A CN108216359A (en) | 2016-12-22 | 2016-12-22 | A kind of electric hydraulic power-assisted steering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196349.2A CN108216359A (en) | 2016-12-22 | 2016-12-22 | A kind of electric hydraulic power-assisted steering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108216359A true CN108216359A (en) | 2018-06-29 |
Family
ID=62656119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611196349.2A Pending CN108216359A (en) | 2016-12-22 | 2016-12-22 | A kind of electric hydraulic power-assisted steering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108216359A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203280A (en) * | 2019-06-13 | 2019-09-06 | 温州艾克生汽车电器有限公司 | A kind of electric turning booster pump assembly |
| CN110685902A (en) * | 2019-10-22 | 2020-01-14 | 兰州理工大学 | Plug-in hydraulic motor pump |
| CN112208629A (en) * | 2020-09-25 | 2021-01-12 | 东风商用车有限公司 | Heat dissipation type steering oil pump assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130074074A (en) * | 2011-12-26 | 2013-07-04 | 주식회사 만도 | Electric power steering apparatus for vehicle |
| CN203111307U (en) * | 2013-03-25 | 2013-08-07 | 瑞立集团瑞安汽车零部件有限公司 | Electric control steering oil pump |
| CN203294176U (en) * | 2013-06-05 | 2013-11-20 | 重庆环松科技工业有限公司 | Electric power steering device of four-wheel motor vehicle |
| CN106015023A (en) * | 2016-07-04 | 2016-10-12 | 玉林市璟晗新能源汽车有限责任公司 | Single-shaft electro-hydraulic steering pump |
-
2016
- 2016-12-22 CN CN201611196349.2A patent/CN108216359A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130074074A (en) * | 2011-12-26 | 2013-07-04 | 주식회사 만도 | Electric power steering apparatus for vehicle |
| CN203111307U (en) * | 2013-03-25 | 2013-08-07 | 瑞立集团瑞安汽车零部件有限公司 | Electric control steering oil pump |
| CN203294176U (en) * | 2013-06-05 | 2013-11-20 | 重庆环松科技工业有限公司 | Electric power steering device of four-wheel motor vehicle |
| CN106015023A (en) * | 2016-07-04 | 2016-10-12 | 玉林市璟晗新能源汽车有限责任公司 | Single-shaft electro-hydraulic steering pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203280A (en) * | 2019-06-13 | 2019-09-06 | 温州艾克生汽车电器有限公司 | A kind of electric turning booster pump assembly |
| CN110685902A (en) * | 2019-10-22 | 2020-01-14 | 兰州理工大学 | Plug-in hydraulic motor pump |
| CN112208629A (en) * | 2020-09-25 | 2021-01-12 | 东风商用车有限公司 | Heat dissipation type steering oil pump assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |