CN204172980U - A kind of electronlmobil power-assisted steering device torsion bar support structure - Google Patents
A kind of electronlmobil power-assisted steering device torsion bar support structure Download PDFInfo
- Publication number
- CN204172980U CN204172980U CN201420557922.8U CN201420557922U CN204172980U CN 204172980 U CN204172980 U CN 204172980U CN 201420557922 U CN201420557922 U CN 201420557922U CN 204172980 U CN204172980 U CN 204172980U
- Authority
- CN
- China
- Prior art keywords
- torsion bar
- needle bearing
- slide block
- spring
- steering device
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 241000227287 Elliottia pyroliflora Species 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a kind of electronlmobil power-assisted steering device torsion bar support structure.The utility model comprises torsion bar, input shaft bottom, elastic spring, slide block, steel ball, spring, pad, stop pin, output shaft and needle bearing, the splined section press-in input shaft bottom of torsion bar, elastic spring and slide block are all equipped with in the top and bottom of output shaft, steel ball is equipped with in the inside of slide block, spring is equipped with in the side of slide block, the opposite side of spring is equipped with pad, torsion bar one end relative with spline enters stop pin be connected with output shaft by joining the pressure of the drill, be provided with needle bearing with spline proximate portion, and support the structure of torsion bar with needle bearing.The cliding friction that torsion bar is gone back to center by the utility model changes friction of rolling into, reduces internal resistance, improves the return performance of torsion bar, extends the service life of pipe column type vehicle electric power-assisted steering device.
Description
Technical field
The utility model relates to vehicle electric power-assisted steering device field, specifically a kind of electronlmobil power-assisted steering device torsion bar support structure.
Background technology
Along with the develop rapidly of auto-industry, market is also increasing to the demand of pipe column type vehicle electric power-assisted steering device, but it is low that vehicle electric power-assisted steering device in the market exists copper bush hardness, with the relative sliding of torsion bar, is easy to wearing and tearing; Torsion bar external diameter and copper bush minor diameter fit gap large time, bad road turns to and easily abnormal sound occurs; Torsion bar external diameter and copper bush minor diameter fit gap hour, torsion bar and related parts right alignment require high; Torsion bar external diameter and copper bush minor diameter fit gap too small time, friction force increases, affect the defects such as the Hui Zheng of torsion bar, directly results in the reduced lifetime of pipe column type vehicle electric power-assisted steering device, constrain the further genralrlization of vehicle electric power-assisted steering device, and potential threat is caused to the safety of automobile driver.
Summary of the invention
The utility model aims to provide a kind of electronlmobil power-assisted steering device torsion bar support structure.
For achieving the above object, the utility model provides following technical scheme: a kind of electronlmobil power-assisted steering device torsion bar support structure, comprise torsion bar, input shaft bottom, elastic spring, slide block, steel ball, spring, pad, stop pin, output shaft and needle bearing, the splined section press-in input shaft bottom of described torsion bar, elastic spring and slide block are all equipped with in the top and bottom of output shaft, steel ball is equipped with in the inside of slide block, spring is equipped with in the side of slide block, the opposite side of spring is equipped with pad, torsion bar one end relative with spline enters stop pin be connected with output shaft by joining the pressure of the drill, needle bearing is provided with spline proximate portion, and the structure of torsion bar is supported with needle bearing.
Preferably, the material of described needle bearing is bearing steel, and the life-span of needle bearing, comparatively copper bush was long.
Preferably, the inner ring of described needle bearing and the outer ring of torsion bar are hole base system of fits.
Compared with prior art, the beneficial effects of the utility model are: this electronlmobil power-assisted steering device torsion bar support structure, cliding friction torsion bar being gone back to center changes friction of rolling into, reduce internal resistance, improve the return performance of torsion bar, extend the service life of pipe column type vehicle electric power-assisted steering device.
Accompanying drawing explanation
Fig. 1 is integral structure schematic diagram of the present utility model;
Fig. 2 is lateral plan of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-2, in the utility model embodiment, a kind of electronlmobil power-assisted steering device torsion bar support structure, comprise torsion bar 1, input shaft bottom 2, elastic spring 3, slide block 4, steel ball 5, spring 6, pad 7, stop pin 8, output shaft 9 and needle bearing 10, the splined section press-in input shaft bottom 2 of described torsion bar 1, elastic spring 3 and slide block 4 are all equipped with in the top and bottom of output shaft 9, steel ball 5 is equipped with in the inside of slide block 4, spring 6 is equipped with in the side of slide block 4, the opposite side of spring 6 is equipped with pad 7, torsion bar 1 one end relative with spline enters stop pin 8 be connected with output shaft 9 by joining the pressure of the drill, needle bearing 10 is provided with spline proximate portion, and the structure of torsion bar 1 is supported with needle bearing 10.The inner ring of described needle bearing 10 and the outer ring of torsion bar 1 are hole base system of fits, ensure that torsion bar 1 outside dimension, eliminate the abnormal sound problem caused greatly because of gap, needle bearing 10 substitutes copper bush and changes cliding friction into friction of rolling in torsion bar 1 time timing, reduces internal resistance, improves the return performance of torsion bar 1, the material of needle bearing 10 is bearing steel, hardness is higher than copper, and resistance to abrasion is good, and the life-span of needle bearing 10, comparatively copper bush was long.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. an electronlmobil power-assisted steering device torsion bar support structure, comprise torsion bar (1), input shaft bottom (2), elastic spring (3), slide block (4), steel ball (5), spring (6), pad (7), stop pin (8), output shaft (9) and needle bearing (10), it is characterized in that, splined section press-in input shaft bottom (2) of described torsion bar (1), elastic spring (3) and slide block (4) are all equipped with in the top and bottom of output shaft (9), steel ball (5) is equipped with in the inside of slide block (4), spring (6) is equipped with in the side of slide block (4), the opposite side of spring (6) is equipped with pad (7), torsion bar (1) one end relative with spline enters stop pin (8) be connected with output shaft (9) by joining the pressure of the drill, needle bearing (10) is provided with spline proximate portion, and the structure of torsion bar (1) is supported with needle bearing (10).
2. a kind of electronlmobil power-assisted steering device torsion bar support structure according to claim 1, is characterized in that, the material of described needle bearing (10) is bearing steel, and the life-span of needle bearing (10), comparatively copper bush was long.
3. a kind of electronlmobil power-assisted steering device torsion bar support structure according to claim 1, is characterized in that, the inner ring of described needle bearing (10) and the outer ring of torsion bar (1) are hole base system of fits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557922.8U CN204172980U (en) | 2014-09-25 | 2014-09-25 | A kind of electronlmobil power-assisted steering device torsion bar support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557922.8U CN204172980U (en) | 2014-09-25 | 2014-09-25 | A kind of electronlmobil power-assisted steering device torsion bar support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204172980U true CN204172980U (en) | 2015-02-25 |
Family
ID=52561809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420557922.8U Expired - Fee Related CN204172980U (en) | 2014-09-25 | 2014-09-25 | A kind of electronlmobil power-assisted steering device torsion bar support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204172980U (en) |
-
2014
- 2014-09-25 CN CN201420557922.8U patent/CN204172980U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315806, No. 68 North Lake Road, Beilun District, Zhejiang, Ningbo Patentee after: NINGBO XUSHENG AUTO TECHNOLOGY Co.,Ltd. Address before: 315806, No. 68 North Lake Road, Beilun District, Zhejiang, Ningbo Patentee before: NINGBO XUSHENG MACHINERY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 |