CN204465175U - Electric hydraulic power-assisted steering pump motor stator location structure - Google Patents
Electric hydraulic power-assisted steering pump motor stator location structure Download PDFInfo
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- CN204465175U CN204465175U CN201520186338.0U CN201520186338U CN204465175U CN 204465175 U CN204465175 U CN 204465175U CN 201520186338 U CN201520186338 U CN 201520186338U CN 204465175 U CN204465175 U CN 204465175U
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- motor stator
- hydraulic power
- electric hydraulic
- assisted steering
- steering pump
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Abstract
The utility model discloses a kind of electric hydraulic power-assisted steering pump motor stator location structure, comprise bearing and be set in circlip on the sleeve pipe of bearing, described circlip comprises and is arranged in described motor stator side and has flexible outer back-up ring and be connected with outer back-up ring and embed draw-in groove projection set by described bushing outer surface.Electric hydraulic power-assisted steering pump motor stator location structure of the present utility model; by be located at be made up of interior projection and outer back-up ring there is flexible circlip; interior projection snaps in the draw-in groove of bearing and circlip is fixed; avoid coming off; when motor stator moves axially; circlip generation elastic deformation, can play cushioning effect to motor stator, effectively protect parts.
Description
Technical field
The utility model belongs to wheel steering system technical field, and specifically, the utility model relates to a kind of electric hydraulic power-assisted steering pump motor stator location structure.
Background technology
Electric power steering has the plurality of advantages such as energy-saving and environmental protection, safety, is the study hotspot of current power-assisted steering motorized.
Electric hydraulic power-assisted steering pump is the overall structure connected and composed by motor and hydraulic pump, and motor stator is arranged on the sleeve pipe of bearing, and motor shaft to insert in sleeve pipe and is connected with hydraulic pump.Motor stator needs to use circlip to position on the sleeve pipe of bearing, circlip common at present has circlip for shaft and circlip for hole two class, the elasticity of this type of back-up ring is mainly manifested in installation process, just plays the effect of back-up ring after having assembled.When vehicle travels under the adverse circumstances such as to jolt, wave, in this operating mode, the momentum of part is comparatively large, and the risk using common back-up ring to there is back-up ring to come off, it is unreliable to locate.
Utility model content
The utility model provides a kind of electric hydraulic power-assisted steering pump motor stator location structure, and object improves reliability of positioning, avoids circlip to come off.
To achieve these goals, the technical scheme that the utility model is taked is: electric hydraulic power-assisted steering pump motor stator location structure, comprise bearing and be set in circlip on the sleeve pipe of bearing, described circlip comprises and is arranged in described motor stator side and has flexible outer back-up ring and be connected with outer back-up ring and embed draw-in groove projection set by described bushing outer surface.
The center of described outer back-up ring has the through hole allowing described sleeve pipe pass, and described interior projection is uniformly distributed circumferentially in the inner edge of described outer back-up ring.
Described interior projection is provided with four altogether.
Described draw-in groove is along the annular groove that whole circumference extends on the outer surface of described sleeve pipe.
The thickness of described interior projection is identical with the depth size of described draw-in groove.
The outer surface of described sleeve pipe is provided with and extends vertically and the location notch allowing positioning key embed, and positioning key is clipped between sleeve pipe and motor stator.
Described location notch is provided with one.
Electric hydraulic power-assisted steering pump motor stator location structure of the present utility model; by be located at be made up of interior projection and outer back-up ring there is flexible circlip; interior projection snaps in the draw-in groove of bearing and circlip is fixed; avoid coming off; when motor stator moves axially; circlip generation elastic deformation, can play cushioning effect to motor stator, effectively protect parts.
Accompanying drawing explanation
This specification comprises the following drawings, shown content respectively:
Fig. 1 is the structural representation of the utility model location structure;
Fig. 2 is the structural representation of bearing;
Fig. 3 is the installation diagram of bearing and circlip;
Fig. 4 is the structural representation of circlip;
Be labeled as in figure:
1, motor stator; 2, bearing; 21, sleeve pipe; 22, matrix is installed; 23, draw-in groove; 24, location notch; 3, circlip; 31, interior projection; 32, outer back-up ring.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, be described in further detail embodiment of the present utility model, object helps those skilled in the art to have more complete, accurate and deep understanding to design of the present utility model, technical scheme, and contribute to its enforcement.
As shown in Figures 1 to 4, the utility model provides a kind of electric hydraulic power-assisted steering pump motor stator location structure, the circlip 3 comprising bearing 2 and be set on the sleeve pipe 21 of bearing 2, bearing 2 is the parts such as hydraulic pump, motor and oil can for installing electric hydraulic power-assisted steering pump, bearing 2 is mainly made up of installation matrix 22 and sleeve pipe 21, sleeve pipe 21 stretches out towards the side of installing matrix 22, and sleeve pipe 21 is the cylindrical member of inner hollow.The circlip 3 that this location structure adopts comprises and is arranged in motor stator 1 side and has flexible outer back-up ring 32 and be connected with outer back-up ring 32 and embed draw-in groove 23 projection 31 set by sleeve pipe 21 outer surface, motor stator 1 is set on sleeve pipe 21, one end of motor stator 1 is spacing by installing matrix 22, and the other end is spacing by circlip 3.Interior projection 31 snaps in the draw-in groove 23 of sleeve pipe 21 and circlip 3 is fixed; avoid coming off; thus the reliability of axial location can be improved; and motor stator 1 is when moving axially; can elastic deformation be there is in circlip 3; thus cushioning effect can be played to motor stator 1, effectively protect parts.
Specifically, as shown in Figure 4, outer back-up ring 32 is conical thin slice, and the center of outer back-up ring 32 has the through hole allowing sleeve pipe 21 pass, and the inner edge of interior projection 31 back-up ring 32 is outside uniformly distributed circumferentially.Interior projection 31 is fixedly connected with outer back-up ring 32, form integrative-structure, and the side that interior projection 31 is back-up ring 32 toward the outside is vertically stretched out.Interior projection 31 is also the thin slice of circular arc, and have certain length along in the circumference of outer back-up ring 32, the angle between interior projection 31 and outer back-up ring 32 is greater than 90 degree.
As shown in Figure 2, the draw-in groove 23 on sleeve pipe 21 is located at away from the one end of installing matrix 22 on sleeve pipe 21, and draw-in groove 23 is along the annular groove that whole circumference extends on the outer surface of sleeve pipe 21.As preferably, the thickness of interior projection 31 is identical with the depth size of draw-in groove 23, and the diameter of the circular arc inner surface of interior projection 31 is equal with the interior diameter at draw-in groove 23 place, and interior projection 31 can embed in draw-in groove 23 completely, keep in touch with sleeve pipe 21, improve fixing reliability.
As shown in Figure 4, in the present embodiment, the interior projection 31 of circlip 3 is provided with four altogether, and four interior projections 31 are for being uniformly distributed.
As shown in Figures 2 and 3, the outer surface of sleeve pipe 21 is provided with and extends vertically and the location notch 24 allowing positioning key embed, positioning key is clipped between sleeve pipe 21 and motor stator 1.Motor stator 1 is set on sleeve pipe 21, and positioning key embeds in location notch 24 and the keyway set by motor stator inner surface, realizes the circumference location of motor stator 1 on sleeve pipe 21.
As shown in Figures 2 and 3, in the present embodiment, location notch 24 is from the end face of sleeve pipe 21, extend to the medium position place near sleeve pipe 21, and location notch 24 is provided with one.
Below by reference to the accompanying drawings the utility model is exemplarily described.Obviously, the utility model specific implementation is not subject to the restrictions described above.As long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; Or without improvement, above-mentioned design of the present utility model and technical scheme directly applied to other occasion, all within protection range of the present utility model.
Claims (7)
1. electric hydraulic power-assisted steering pump motor stator location structure, comprise bearing and be set in circlip on the sleeve pipe of bearing, it is characterized in that: described circlip comprises and is arranged in described motor stator side and has flexible outer back-up ring and be connected with outer back-up ring and embed draw-in groove projection set by described bushing outer surface.
2. electric hydraulic power-assisted steering pump motor stator location structure according to claim 1, it is characterized in that: the center of described outer back-up ring has the through hole allowing described sleeve pipe pass, described interior projection is uniformly distributed circumferentially in the inner edge of described outer back-up ring.
3. electric hydraulic power-assisted steering pump motor stator location structure according to claim 2, is characterized in that: described interior projection is provided with four altogether.
4. electric hydraulic power-assisted steering pump motor stator location structure according to claim 1, is characterized in that: described draw-in groove is along the annular groove that whole circumference extends on the outer surface of described sleeve pipe.
5. electric hydraulic power-assisted steering pump motor stator location structure according to claim 4, is characterized in that: the thickness of described interior projection is identical with the depth size of described draw-in groove.
6. according to the arbitrary described electric hydraulic power-assisted steering pump motor stator location structure of claim 1 to 5, it is characterized in that: the outer surface of described sleeve pipe is provided with and extends vertically and the location notch allowing positioning key embed, and positioning key is clipped between sleeve pipe and motor stator.
7. electric hydraulic power-assisted steering pump motor stator location structure according to claim 6, is characterized in that: described location notch is provided with one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520186338.0U CN204465175U (en) | 2015-03-30 | 2015-03-30 | Electric hydraulic power-assisted steering pump motor stator location structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520186338.0U CN204465175U (en) | 2015-03-30 | 2015-03-30 | Electric hydraulic power-assisted steering pump motor stator location structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204465175U true CN204465175U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520186338.0U Active CN204465175U (en) | 2015-03-30 | 2015-03-30 | Electric hydraulic power-assisted steering pump motor stator location structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487123A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump and its motor |
-
2015
- 2015-03-30 CN CN201520186338.0U patent/CN204465175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487123A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump and its motor |
| CN106487123B (en) * | 2015-08-31 | 2024-04-09 | 德昌电机(深圳)有限公司 | Liquid pump and driving motor thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Zhi Zhen Wuhu County in Anhui province Wuhu city Anhui Bay 241100 Wuhu Economic Development Zone weft four Road No. 88 East Building 02 Patentee after: Anhui Defu steering system of Limited by Share Ltd Address before: 241100, No. four, No. 88, Dong Lu, machinery industry zone, Wuhu County, Wuhu, Anhui Patentee before: Wuhu Defu Steering System Co., Ltd. |