CN204548216U - A kind of electric power steering worm gearing - Google Patents
A kind of electric power steering worm gearing Download PDFInfo
- Publication number
- CN204548216U CN204548216U CN201520113853.6U CN201520113853U CN204548216U CN 204548216 U CN204548216 U CN 204548216U CN 201520113853 U CN201520113853 U CN 201520113853U CN 204548216 U CN204548216 U CN 204548216U
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- Prior art keywords
- worm gear
- worm
- mandrel
- electric power
- power steering
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- Power Steering Mechanism (AREA)
Abstract
The utility model relates to a kind of electric power steering worm gearing, comprise worm screw, worm gear and mandrel, described worm and wheel is meshed, the center that one end of described mandrel penetrates into worm gear is connected with worm gear, one end outer shaft of described mandrel is provided with spacing ring and spacer ring to embedding successively, described spacing ring leans on mutually with the end face of worm gear, the endoporus close contact of described spacer ring and worm gear; Described spacer ring is the annulus of single-open, its lateral wall has circumferentially been evenly arranged several projections.The utility model is assemblage gap ring between worm gear and mandrel, and assembling is simple, can play effects such as relaxing mating parts tolerance, torque overload is protected, axial force accurately controls.
Description
Technical field
The utility model relates to Worm Wheel System field, particularly relates to a kind of electric power steering worm gearing.
Background technology
Electric boosting steering system is the important system of motor turning; and worm-and-wheel gear is the core component of electric boosting steering system; interference fit is adopted between conventional worm gear and mandrel; dimension limit is easily overproof; product rejection rate is high, and can not play overload protective function to Worm Wheel System when abusing operating mode.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of electric power steering worm gearing; assemblage gap ring between worm gear and mandrel; assembling is simple, can play effects such as relaxing mating parts tolerance, torque overload is protected, axial force accurately controls.
The utility model solves the technical scheme that its technical matters adopts: provide a kind of electric power steering worm gearing, comprise worm screw, worm gear and mandrel, described worm and wheel is meshed, the center that one end of described mandrel penetrates into worm gear is connected with worm gear, one end outer shaft of described mandrel is provided with spacing ring and spacer ring to embedding successively, described spacing ring leans on mutually with the end face of worm gear, the endoporus close contact of described spacer ring and worm gear;
Described spacer ring is the annulus of single-open, its lateral wall has circumferentially been evenly arranged several projections.
Middle mandrel is processed respectively two position-limited troughs, spacer ring and spacing ring are contained on mandrel respectively in advance, and then force fit is to the interstitial hole of worm gear.
Spacer ring is in installation process, and the elastic deformation that its protruding generation is certain, to bear radial weight, when the external world produces torsional impact, spacer ring produces slip between mandrel and worm gear, plays the effect of protection mandrel and worm gear.
Supplement as one of the present utility model, described spacing ring is the snap ring of single-open.
Supplement as one of the present utility model, described worm screw is processed by alloy steel.
Further, described worm gear is injection molded by polyformaldehyde.
Further, described spacer ring is processed by alloy-steel sheet.
Further, the upper surface of described projection is cambered surface.
beneficial effect
The utility model relates to a kind of electric power steering worm gearing, assemblage gap ring between worm gear and mandrel, and assembling is simple, can play effects such as relaxing mating parts tolerance, torque overload is protected, axial force accurately controls.
Accompanying drawing explanation
Fig. 1 is assembling three-dimensional structure diagram of the present utility model;
Fig. 2 is detonation configuration three-dimensional structure diagram of the present utility model.
Reference numeral: 1, worm screw; 2, worm gear; 3, mandrel; 4, spacer ring; 5, spacing ring; 6, protruding.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
As shown in Figure 1-2, embodiment of the present utility model relates to a kind of electric power steering worm gearing, comprise worm screw 1, worm gear 2 and mandrel 3, described worm screw 1 is meshed with worm gear 2, the center that one end of described mandrel 3 penetrates into worm gear 2 is connected with worm gear 2, it is characterized in that, one end outer shaft of described mandrel 3 is provided with spacing ring 5 and spacer ring 4 to embedding successively, described spacing ring 5 leans on mutually with the end face of worm gear 2, described spacer ring 4 and the endoporus close contact of worm gear 2;
Described spacer ring 4 is the annulus of single-open, its lateral wall has circumferentially been evenly arranged several projections 6.
Described spacing ring 5 is the snap ring of single-open.
Described worm screw 1 is processed by alloy steel.
Described worm gear 2 is injection molded by polyformaldehyde.
Described spacer ring 4 is processed by alloy-steel sheet.
The upper surface of described projection 6 is cambered surface.
As embodiment of the present utility model, middle mandrel 3 is processed respectively two position-limited troughs, spacer ring 4 and spacing ring 5 are contained on mandrel 3 respectively in advance, and then force fit is to the interstitial hole of worm gear 2.
Spacer ring 4 is in installation process, and the elastic deformation that its protruding generation is certain, to bear radial weight, when the external world produces torsional impact, spacer ring 4 produces slip between mandrel 3 and worm gear 2, plays the effect of protection mandrel 3 and worm gear 2.
Claims (6)
1. an electric power steering worm gearing, comprise worm screw (1), worm gear (2) and mandrel (3), described worm screw (1) is meshed with worm gear (2), the center that one end of described mandrel (3) penetrates into worm gear (2) is connected with worm gear (2), it is characterized in that, one end outer shaft of described mandrel (3) is provided with spacing ring (5) and spacer ring (4) to embedding successively, described spacing ring (5) leans on mutually with the end face of worm gear (2), the endoporus close contact of described spacer ring (4) and worm gear (2),
The annulus that described spacer ring (4) is single-open, its lateral wall has circumferentially been evenly arranged several projections (6).
2. a kind of electric power steering worm gearing according to claim 1, is characterized in that: the snap ring that described spacing ring (5) is single-open.
3. a kind of electric power steering worm gearing according to claim 2, is characterized in that: described worm screw (1) is processed by alloy steel.
4. a kind of electric power steering worm gearing according to claim 2, is characterized in that: described worm gear (2) is injection molded by polyformaldehyde.
5. a kind of electric power steering worm gearing according to claim 2, is characterized in that: described spacer ring (4) is processed by alloy-steel sheet.
6. according to a kind of electric power steering worm gearing in claim 1-5 described in any one, it is characterized in that: the upper surface of described projection (6) is cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113853.6U CN204548216U (en) | 2015-02-16 | 2015-02-16 | A kind of electric power steering worm gearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113853.6U CN204548216U (en) | 2015-02-16 | 2015-02-16 | A kind of electric power steering worm gearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204548216U true CN204548216U (en) | 2015-08-12 |
Family
ID=53823361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520113853.6U Active CN204548216U (en) | 2015-02-16 | 2015-02-16 | A kind of electric power steering worm gearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204548216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346591A (en) * | 2015-11-03 | 2016-02-24 | 江苏超力电器有限公司 | New processing technology of electric power steering gear turbine of automobile |
| CN113825690A (en) * | 2019-05-15 | 2021-12-21 | 株式会社万都 | Steer-by-wire type steering apparatus |
-
2015
- 2015-02-16 CN CN201520113853.6U patent/CN204548216U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346591A (en) * | 2015-11-03 | 2016-02-24 | 江苏超力电器有限公司 | New processing technology of electric power steering gear turbine of automobile |
| CN113825690A (en) * | 2019-05-15 | 2021-12-21 | 株式会社万都 | Steer-by-wire type steering apparatus |
| CN113825690B (en) * | 2019-05-15 | 2024-05-14 | 汉拿万都株式会社 | Steer-by-wire steering apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |