CN201999055U - Torsion bar supporting structure for electric steering gear of automobiles - Google Patents
Torsion bar supporting structure for electric steering gear of automobiles Download PDFInfo
- Publication number
- CN201999055U CN201999055U CN2010201043675U CN201020104367U CN201999055U CN 201999055 U CN201999055 U CN 201999055U CN 2010201043675 U CN2010201043675 U CN 2010201043675U CN 201020104367 U CN201020104367 U CN 201020104367U CN 201999055 U CN201999055 U CN 201999055U
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- CN
- China
- Prior art keywords
- torsion bar
- needle bearing
- spring
- output shaft
- spline
- 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
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Abstract
A torsion bar supporting structure for an electric steering gear of automobiles mainly comprises a torsion bar, an input shaft, a round wire retaining ring, a slider, a steel ball, a spring, a gasket, a stop pin, an output shaft, a needle bearing and the like. A spline part of the torsion bar is pressed into the lower portion of the input shaft, the upper end and the lower end of the output shaft are provided with the round wire retaining ring and the slider, and the steel ball is arranged on the lower portion of the slider. One side of the slider is provided with the spring, and one side of the spring is provided with the gasket. One end of the torsion opposite to the spline is pressed into the stop pin through a drill and connected with the output shaft, the portion of the torsion bar tightly connected with the spline is provided with the needle bearing, and the needle bearing is used for supporting the torsion bar. Sliding friction in a return-to-center process of the torsion bar is changed into rolling friction, thereby reducing internal resistance, improving return-to-center performance of the torsion bar and prolonging service life of tubular-column-type electric power steering gears of automobiles.
Description
Technical field
The utility model relates to the pipe column type vehicle electric power-assisted steering device, is specially the vehicle electric 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, yet vehicle electric power-assisted steering device in the market exists copper bush hardness low, with the slide relative of torsion bar in, be easy to wearing and tearing; When torsion bar external diameter and copper bush internal diameter tolerance clearance are big, on bad road, turn to easy generation abnormal sound; Torsion bar external diameter and copper bush internal diameter tolerance clearance hour, torsion bar and related parts right alignment require high; When torsion bar external diameter and copper bush internal diameter tolerance clearance are too small, friction force increases, influence the defectives such as Hui Zheng of torsion bar, directly caused the life-span of pipe column type vehicle electric power-assisted steering device to shorten, restricted the further popularization of vehicle electric power-assisted steering device, and automobile driver's safety has been caused potential threat.
The utility model content
The technical matters that the utility model solved is to provide the vehicle electric power-assisted steering device torsion bar support structure, to solve the shortcoming in the above-mentioned background technology.
The technical matters that the utility model solved realizes by the following technical solutions:
The vehicle electric power-assisted steering device torsion bar support structure, mainly comprise torsion bar, input shaft, elastic spring, slide block, steel ball, spring, pad, stop pin, output shaft, needle bearing etc., the splined section of described torsion bar is pressed into the bottom of input shaft, and elastic spring and slide block all are equipped with in the top and bottom of output shaft, steel ball is equipped with in the inside of slide block, one side of slide block is equipped with spring, and the spring opposite side is equipped with pad, and a torsion bar end relative with spline gone into stop pin and be connected with output shaft by joining the pressure of the drill, be right after part with spline and be provided with needle bearing, and support the structure of torsion bar with needle bearing.
In the utility model, the needle bearing inner ring in the described vehicle electric power-assisted steering device torsion bar support structure is that unit bore system cooperates with the torsion bar outer ring, and the torsion bar outside dimension is easy to guarantee, has eliminated the abnormal sound problem that causes greatly because of tolerance clearance.
In the utility model, described vehicle electric power-assisted steering device torsion bar support structure returns timing at torsion bar and changes cliding friction into friction of rolling, has reduced internal resistance, has improved the return performance of torsion bar.
In the utility model, the material of described needle bearing is a bearing steel, and hardness is higher than copper, and resistance to abrasion is good, and the life-span is longer than copper bush.
Beneficial effect:
The utility model changes the cliding friction that torsion bar goes back to the center into friction of rolling, has reduced internal resistance, has improved the return performance of torsion bar, has prolonged the service life of pipe column type vehicle electric power-assisted steering device.
Description of drawings
Fig. 1 is a scheme drawing of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1 vehicle electric power-assisted steering device torsion bar support structure scheme drawing, mainly 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, needle bearing 10 etc., present embodiment is the embodiment of vehicle electric power-assisted steering device torsion bar support structure.
The splined section of torsion bar 1 is pressed into input shaft bottom 2, elastic spring 3 and slide block 4 all are equipped with in the top and bottom of output shaft 9, steel ball 5 is equipped with in the inside of slide block 4, one side of slide block 4 is equipped with spring 6, the opposite side of spring 6 is equipped with pad 7, torsion bar 1 end relative with spline gone into stop pin 8 and is connected with output shaft 9 by joining the pressure of the drill, and be right after part with spline and be provided with needle bearing 10, and with the structure of needle bearing 10 support torsion bars 1.
In the utility model, the inner ring of needle bearing 10 is that unit bore system cooperates with the outer ring of torsion bar 1, guaranteed torsion bar 1 outside dimension, eliminated the abnormal sound problem that causes greatly because of the gap, needle bearing 10 instead of copper linings change cliding friction into friction of rolling in 1 time timing of torsion bar, reduced internal resistance, improved the return performance of torsion bar 1, the material of needle bearing 10 is a bearing steel, and hardness is higher than copper, resistance to abrasion is good, and the life-span of needle bearing 10 is long than copper bush.
More than show and described groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. vehicle electric power-assisted steering device torsion bar support structure, mainly comprise torsion bar, input shaft bottom, elastic spring, slide block, steel ball, spring, pad, stop pin, output shaft, needle bearing is characterized in that, the splined section of described torsion bar is pressed into the input shaft bottom, elastic spring and slide block all are equipped with in the top and bottom of output shaft, and steel ball is equipped with in the inside of slide block, and a side of slide block is equipped with spring, the opposite side of spring is equipped with pad, a torsion bar end relative with spline gone into stop pin and is connected with output shaft by joining the pressure of the drill, is right after part with spline and is provided with needle bearing, and support the structure of torsion bar with needle bearing.
2. vehicle electric power-assisted steering device torsion bar support structure according to claim 1 is characterized in that, the inner ring of described needle bearing is that unit bore system cooperates with the outer ring of torsion bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201043675U CN201999055U (en) | 2010-02-01 | 2010-02-01 | Torsion bar supporting structure for electric steering gear of automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201043675U CN201999055U (en) | 2010-02-01 | 2010-02-01 | Torsion bar supporting structure for electric steering gear of automobiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201999055U true CN201999055U (en) | 2011-10-05 |
Family
ID=44701809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201043675U Expired - Fee Related CN201999055U (en) | 2010-02-01 | 2010-02-01 | Torsion bar supporting structure for electric steering gear of automobiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201999055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165686A (en) * | 2018-07-04 | 2021-07-23 | 沃尔沃卡车集团 | Steering gear assembly with multiple input shafts, remanufacturing kit and remanufacturing method |
-
2010
- 2010-02-01 CN CN2010201043675U patent/CN201999055U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113165686A (en) * | 2018-07-04 | 2021-07-23 | 沃尔沃卡车集团 | Steering gear assembly with multiple input shafts, remanufacturing kit and remanufacturing method |
| CN113165686B (en) * | 2018-07-04 | 2023-09-22 | 沃尔沃卡车集团 | Steering gear assembly with multiple input shafts, remanufacturing kit and remanufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140201 |