CN204452575U - A kind of belt wheel locking device of automobile electric booster steering system - Google Patents
A kind of belt wheel locking device of automobile electric booster steering system Download PDFInfo
- Publication number
- CN204452575U CN204452575U CN201420853337.2U CN201420853337U CN204452575U CN 204452575 U CN204452575 U CN 204452575U CN 201420853337 U CN201420853337 U CN 201420853337U CN 204452575 U CN204452575 U CN 204452575U
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- CN
- China
- Prior art keywords
- belt wheel
- device body
- latching device
- feed screw
- screw nut
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of belt wheel locking device of automobile electric booster steering system, comprises latching device body, and described latching device body is installed between large belt wheel and feed screw nut, wherein: described latching device body is circular; In the outer circumferential walls of described annular arrangement latching device body, axial direction is provided with multiple projection, the application force of described projection for disperseing big belt pulley to transmit.The utility model can not only ensure the transmission of motion and moment, can also become concentrating on Force decomposition larger below large belt wheel the less application force that on binding ring, even circumferential distributes simultaneously, and act on feed screw nut circumferencial direction, reduce the distortion of feed screw nut's wall.
Description
Technical field
The utility model relates to automobile electric booster steering system technical field, and specifically, what relate to is a kind of belt wheel locking device of automobile electric booster steering system.
Background technology
When electric booster steering device work, need the belt carry-over moment by applying predetermincd tension and motion.The technical disadvantages of current product is: the predetermincd tension of belt is comparatively large, and on the go amplifies, and produces radial forces, and pass to feed screw nut by belt wheel to belt wheel; Owing to there being interior raceway in nut, this place's wall thickness is thin, and generation is out of shape by larger masterpiece on nut wall, thus extruding steel ball, cause wearing and tearing, even feed screw nut's fracture failure.
Utility model content
The purpose of this utility model is to solve above-mentioned deficiency of the prior art, provides a kind of belt wheel locking device of automobile electric booster steering system, the application of this device, decreases the risk that Ball Mill undermines feed screw nut's fracture failure.
For realizing above-mentioned object, the belt wheel locking device of a kind of automobile electric booster steering system described in the utility model, comprise latching device body, described latching device body is installed between large belt wheel and feed screw nut, wherein: described latching device body is circular; In the outer circumferential walls of described circular latching device body, axial direction is provided with multiple projection, the application force of described projection for disperseing big belt pulley to transmit.
Preferably, described latching device body is installed between large belt wheel and feed screw nut, and and has a gap between belt wheel and feed screw nut greatly.
Preferably, described projection is circumferentially evenly arranged along described latching device body.
Preferably, described latching device body adopts elastomeric material to make.
The utility model beneficial effect:
The utility model gap be arranged in the middle of large belt wheel and feed screw nut, the transmission of motion and moment can not only be ensured, can also become concentrating on Force decomposition larger below large belt wheel the less application force that on binding ring, even circumferential distributes simultaneously, and act on feed screw nut circumferencial direction, reduce the distortion of feed screw nut's wall.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model assembling schematic diagram;
Fig. 3 is the dispersion contrast schematic diagram of power on large belt wheel, and wherein (a) be not for having large belt wheel distribution of stress during belt wheel locking device, and (b) is for adding large belt wheel distribution of stress during belt wheel locking device;
In figure: 1 is belt wheel locking device, and 1-1 is latching device body, 1-2 is protruding; 2 is small pulley; 3 is belt; 4 is feed screw nut; 5 is large belt wheel.
Detailed description of the invention
Below in conjunction with drawings and Examples, the technical solution of the utility model is further explained, but following content is not used in restriction protection domain of the present utility model.
As shown in Figure 1, the present embodiment provides a kind of belt wheel locking device 1 of automobile electric booster steering system, comprise latching device body 1-1, described latching device body 1-1 is installed between large belt wheel 5 and feed screw nut 4, wherein: described latching device body 1-1 is circular; In the outer circumferential walls of described annular arrangement latching device body 1-1, axial direction is provided with multiple protruding 1-2, the application force that described protruding 1-2 transmits for disperseing big belt pulley 5.
In the present embodiment, described latching device body 1-1 is installed between large belt wheel 5 and feed screw nut 4, and and has a gap between belt wheel 5 and feed screw nut 4 greatly.
In the present embodiment, described protruding 1-2 is circumferentially evenly arranged along described latching device body 1-1.
In the present embodiment, described latching device body 1-1 is elastomeric material.
As shown in Figure 2, when electric booster steering device work time, small pulley 2 by applying belt 3 carry-over moment of predetermincd tension and moving to large belt wheel 5, and passes to feed screw nut 4 by large belt wheel 5; Elastomeric latching device body 1-1 is with to be installed between large belt wheel 5 and feed screw nut 4 with gap, the transmission of motion and moment can not only be ensured, can also resolve into by the multiple protruding 1-2 arranged on latching device body 1-1 the less application force that on latching device body 1-1, even circumferential distributes by concentrating on application force larger below large belt wheel 5 simultaneously, and act on feed screw nut 4 circumferencial direction, reduce the distortion of feed screw nut 4 wall, thus decrease the possibility of the even feed screw nut's fracture failure of wearing and tearing.
As shown in Figure 3, a (), (b) are respectively large belt wheel distribution of stress situation (Fn (n=1 when not having the large belt wheel distribution of stress situation (F) of belt wheel locking device and add belt wheel locking device, 2, )), wherein: F>Fn (n=1,2 ...).
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (4)
1. a belt wheel locking device for automobile electric booster steering system, is characterized in that, comprises latching device body, and described latching device body is installed between large belt wheel and feed screw nut, wherein: described latching device body is circular; In the outer circumferential walls of described circular latching device body, axial direction is provided with multiple projection, the application force of described projection for disperseing big belt pulley to transmit.
2. the belt wheel locking device of a kind of automobile electric booster steering system according to claim 1, is characterized in that: described latching device body is installed between large belt wheel and feed screw nut, and and has a gap between belt wheel and feed screw nut greatly.
3. the belt wheel locking device of a kind of automobile electric booster steering system according to claim 1, is characterized in that: described projection is circumferentially evenly arranged along described latching device body.
4. the belt wheel locking device of a kind of automobile electric booster steering system according to any one of claim 1-3, is characterized in that: described latching device body adopts elastomeric material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853337.2U CN204452575U (en) | 2014-12-24 | 2014-12-24 | A kind of belt wheel locking device of automobile electric booster steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853337.2U CN204452575U (en) | 2014-12-24 | 2014-12-24 | A kind of belt wheel locking device of automobile electric booster steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204452575U true CN204452575U (en) | 2015-07-08 |
Family
ID=53659499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420853337.2U Expired - Fee Related CN204452575U (en) | 2014-12-24 | 2014-12-24 | A kind of belt wheel locking device of automobile electric booster steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204452575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476780A (en) * | 2016-11-04 | 2017-03-08 | 浙江力邦合信智能制动系统股份有限公司 | Deceleration of electrons booster |
-
2014
- 2014-12-24 CN CN201420853337.2U patent/CN204452575U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476780A (en) * | 2016-11-04 | 2017-03-08 | 浙江力邦合信智能制动系统股份有限公司 | Deceleration of electrons booster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201814 Shanghai city Anting town Jiading District Bai'an Road No. 188 Patentee after: ZF Automotive Systems (Shanghai) Co., Ltd Address before: 201814 Shanghai city Anting town Jiading District Bai'an Road No. 188 Patentee before: TIANHE AUTOMOBILE PARTS (SHANGHAI) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20201224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |