CN201448424U - Axial clearance adjusting device of worm for electrically-driven steering column - Google Patents
Axial clearance adjusting device of worm for electrically-driven steering column Download PDFInfo
- Publication number
- CN201448424U CN201448424U CN2009200477706U CN200920047770U CN201448424U CN 201448424 U CN201448424 U CN 201448424U CN 2009200477706 U CN2009200477706 U CN 2009200477706U CN 200920047770 U CN200920047770 U CN 200920047770U CN 201448424 U CN201448424 U CN 201448424U
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- worm
- worn
- worm screw
- pad
- axial clearance
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- Expired - Lifetime
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Abstract
The utility model relates to a component related to an electric steering system of an automobile, particularly to an axial clearance adjusting device of the worm for an electrically-driven steering column. The device comprises a worm and a bearing, wherein an adjusting shim is arranged on the outer side at one end of the worn, and the adjusting shim is connected and fixed closely with the worn through a fastening piece. The axial clearance of the worn can be controlled effectively by arranging the adjusting shim on the outer side of the worn instead of the original cushion pad, thereby ensuring the coherence of the rotating torque of the worn, eliminating the problems of the abnormal sound of the power column caused due to the clearance problem of the worn, reducing the precision requirements of the dimension of the processing position of the snap spring groove for an casing, and lowering the manufacturing cost.
Description
Technical field
The utility model relates to the associated components of electric power steering system of automobile, specifically electric powered steering tubing string worm shaft end play regulating device.
Background technique
According to motor position difference, electric boosting steering system can be divided into: three kinds of steering column booster types, gear booster type, tooth bar booster type.The motor of steering column booster type EPS is fixed on steering column one side, links to each other with steering shaft by reducing gear, directly drives steering shaft and carries out power-assisted steering.The motor and speed reducer structure of gear booster type EPS links to each other with small gear, directly actuation gear power-assisted steering.The motor and speed reducer structure of tooth bar booster type EPS then directly drives tooth bar power-assisted is provided.At present, the reducing gear of the motor of steering column booster type EPS and gear booster type EPS all adopts worm gear, worm speed-down.And in the gap control of assembling worm screw, to electric powered steering steering torque and turn to the influence of abnormal sound very big.
Existing electric powered steering tubing string worm shaft end play regulating device structure as shown in Figure 1, comprise worm screw 1, bearing 2 and cushion pad 3, cushion pad 3 is located at the two ends of worm screw 1, be located between worm screw 1 and the bearing 2, worm screw 1 axial clearance is to eliminate by the plastic deformation of the cushion pad 3 at worm screw two ends, because, the tolerance of the position of the jump ring groove of decelerating casing, tolerance accumulative total can appear in the error in length of the width error of cushion pad and two cushion pads of worm screw in assembly process, cause worm screw 1 axial gap to be difficult to control, worm screw 1 axial clearance is crossed the generation that conference directly causes the tubing string abnormal sound; Worm screw 1 axial clearance is too small, and it is big that the moment of rotation of worm screw 1 becomes, and causes the moment of rotation of steering shaft to become big, and power-assisted efficient reduces greatly, accelerates the aging distortion of cushion pad simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is: the shortcoming at above prior art exists, a kind of effective control worm shaft end play is proposed, and guarantee the conforming electric powered steering tubing string worm shaft end play regulating device of the moment of rotation of worm screw.
The technological scheme that the utility model solves above technical problem is:
Electric powered steering tubing string worm shaft end play regulating device comprises worm screw and bearing, is provided with one in the end outside of worm screw and adjusts pad, adjusts pad and is connected fastening with worm screw by fastening piece.
Be provided with one in the outside of adjusting pad and adjust bolt, adjust pad by adjusting bolton.
The utility model has the advantages that: the arranged outside worm screw is adjusted pad, replace original cushion pad, can effectively control the worm shaft end play, guaranteed worm screw rotation the conformity of moment, eliminated the tubing string abnormal sound problem that the power-assisted tubing string produces because of the clearance issues of worm screw, the required precision of the decelerating casing jump ring groove operative position size that also reduces cuts down finished cost simultaneously.
Description of drawings
Fig. 1 is an existing electric powered steering tubing string worm shaft end play regulating device structural representation.
Fig. 2 is a structural representation of the present utility model.
Embodiment
Embodiment one
The structure of present embodiment as shown in Figure 1, a kind of electric powered steering tubing string worm shaft end play regulating device comprises worm screw 1 and bearing 2, is provided with one in the end of worm screw 1 outside and adjusts pad 4, adjusts pad 4 and is connected fastening by fastening piece with worm screw 1.Fastening piece promptly is provided with one in the outside of adjusting pad 4 and adjusts bolt 5 for adjusting bolt, by adjusting bolt 5 fastening adjustment pads 4.Adjusting pad 4 usefulness steel processes.
Arranged outside worm screw is adjusted pad, replace original cushion pad, can effectively control the worm shaft end play, guaranteed worm screw rotation the conformity of moment, eliminated the tubing string abnormal sound problem that the power-assisted tubing string produces because of the clearance issues of worm screw, the required precision of the decelerating casing jump ring groove operative position size that also reduces cuts down finished cost simultaneously.
The utility model can also have other mode of execution, and the technological scheme that equal replacement of all employings or equivalent transformation form all drops within the claimed scope of the utility model.
Claims (3)
1. electric powered steering tubing string worm shaft end play regulating device comprises worm screw and bearing, it is characterized in that: be provided with one in the end outside of described worm screw and adjust pad, described adjustment pad is connected fastening by fastening piece with described worm screw.
2. electric powered steering tubing string as claimed in claim 1 worm shaft end play regulating device is characterized in that: be provided with one in the outside of described adjustment pad and adjust bolt, adjust pad by adjusting bolton.
3. electric powered steering tubing string as claimed in claim 1 or 2 worm shaft end play regulating device, it is characterized in that: described adjustment pad is the steel pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200477706U CN201448424U (en) | 2009-07-16 | 2009-07-16 | Axial clearance adjusting device of worm for electrically-driven steering column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200477706U CN201448424U (en) | 2009-07-16 | 2009-07-16 | Axial clearance adjusting device of worm for electrically-driven steering column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448424U true CN201448424U (en) | 2010-05-05 |
Family
ID=42553140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200477706U Expired - Lifetime CN201448424U (en) | 2009-07-16 | 2009-07-16 | Axial clearance adjusting device of worm for electrically-driven steering column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448424U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269940A (en) * | 2010-12-24 | 2013-08-28 | 株式会社捷太格特 | Electric power steering device |
| CN103429465B (en) * | 2011-03-17 | 2016-06-08 | 法雷奥开关和传感器有限责任公司 | The bearing assembly of steering column lever and the motor vehicles with this bearing assembly on steering column portion |
| CN109572798A (en) * | 2018-12-19 | 2019-04-05 | 芜湖世特瑞转向系统有限公司 | The axial-adjustment unit of electronic four-way adjustable steering pipe column |
| CN110550100A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Steering system and vehicle |
-
2009
- 2009-07-16 CN CN2009200477706U patent/CN201448424U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269940A (en) * | 2010-12-24 | 2013-08-28 | 株式会社捷太格特 | Electric power steering device |
| CN103269940B (en) * | 2010-12-24 | 2016-02-24 | 株式会社捷太格特 | Electric power-assisted steering apparatus |
| CN103429465B (en) * | 2011-03-17 | 2016-06-08 | 法雷奥开关和传感器有限责任公司 | The bearing assembly of steering column lever and the motor vehicles with this bearing assembly on steering column portion |
| CN110550100A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Steering system and vehicle |
| CN109572798A (en) * | 2018-12-19 | 2019-04-05 | 芜湖世特瑞转向系统有限公司 | The axial-adjustment unit of electronic four-way adjustable steering pipe column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 211001 No. 71, Qinhuai Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee after: Nanjing Donghua intelligent Steering System Co., Ltd. Address before: 211101 No. 71, Qinhuai Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: Nanjing Donghua Automotive Steering Co. ,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |
|
| CX01 | Expiry of patent term |