CN202806847U - Lower steering shaft for automobile - Google Patents
Lower steering shaft for automobile Download PDFInfo
- Publication number
- CN202806847U CN202806847U CN 201220349865 CN201220349865U CN202806847U CN 202806847 U CN202806847 U CN 202806847U CN 201220349865 CN201220349865 CN 201220349865 CN 201220349865 U CN201220349865 U CN 201220349865U CN 202806847 U CN202806847 U CN 202806847U
- Authority
- CN
- China
- Prior art keywords
- spline
- shaft
- rubber coupling
- coupling assembly
- assembly
- 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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- Steering Controls (AREA)
Abstract
The utility model relates to a lower steering shaft for an automobile. The lower steering shaft comprises a rubber coupling assembly and a spline shaft. One side of the rubber coupling assembly is rigidly connected with a first spline connecting fork, the other side of the rubber coupling assembly is connected with a spline sleeve by a first universal spider assembly, and the spline shaft is arranged in the spline sleeve and is connected with a second spline connecting fork by a second universal spider assembly. A dustproof sleeve is arranged between the spline sleeve and the second universal spider assembly and covers the outer side of the spline shaft. The lower steering shaft has the advantages that radial impact energy born by the lower shaft can be absorbed by the rubber coupling assembly when the automobile bumps on an uneven road, the spline shaft and the spline sleeve are in sliding fit with each other to absorb axial impact force born by the lower shaft, the axial impact force born by the lower shaft can also be absorbed by the rubber coupling assembly, and accordingly the comfort and the safety of a steering system can be improved in an integral running process of the automobile.
Description
Technical field
The utility model relates to a kind of automobile with turning to lower shaft.
Background technology
The damping lower shaft of steerage gear of existing automobile steering device has following several structure:
1, adopt the free-sliding spline structure without the rubber coupling structure, exist to absorb radial impact power deficiency, the lower shaft spline produces the getting up early wearing and tearing, rocks abnormal sound, and driver comfort is poor;
2, adopt rubber coupling structure, fricton-tight spline structure, exist the buffering axial impact force not enough, rubber coupling may be torn under the ultimate limit state, has potential safety hazard;
3, adopt cover shell ring fork and the fricton-tight spline structure of rubber coating structure, have shaftless deficiency to rushing at the power buffer capacity;
4, adopt wire loop to add the elastic layer damping of vibrations, fricton-tight spline structure exists without the axial force buffer capacity, and certain diametral load buffer capacity is arranged, but the low deficiency of buffer capacity radially under the ultimate limit state.
The utility model content
The purpose of this utility model provides a kind of automobile with turning to lower shaft, can effectively absorb the axial and radial impact power that car load produces lower shaft in the process of jolting, turn to traveling comfort and the safety of system to promote in the car load driving process, and overcome present prior art above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of automobile is with turning to lower shaft, comprise rubber coupling assembly and castellated shaft, one side of described rubber coupling assembly and spline joint fork one are rigidly connected, the opposite side of rubber coupling assembly is connected with spline housing by universal center cross assembly one, be provided with castellated shaft in the spline housing, castellated shaft is connected with spline joint fork two by universal center cross assembly two.
Further, described rubber coupling assembly is provided with buffer layer.
Further, be provided with dust protecting cap between described spline housing and the universal center cross assembly two, dust protecting cap is coated on the outside of castellated shaft.
The beneficial effects of the utility model are: when vehicle in uneven road surface travels the process of jolting, the radial impact ability that lower shaft is subject to absorbs by the rubber coupling assembly; The axial impact force that lower shaft is subject to cooperates the absorption of sliding by castellated shaft and spline housing, and the rubber coupling assembly also can absorb the axial impact force that lower shaft is subject to simultaneously, thereby promotes traveling comfort and the safety that turns to system in the car load driving process.
Description of drawings
The below is described in further detail the utility model with reference to the accompanying drawings.
Fig. 1 is the described automobile of the utility model embodiment cutaway view that turns to lower shaft;
Fig. 2 is the described automobile of the utility model embodiment decomposition texture scheme drawing that turns to lower shaft.
Among the figure:
1, rubber coupling assembly; 2, the universal center cross assembly one; 3, dust protecting cap; 4, the spline joint fork one; 5, castellated shaft; 6, spline housing; 7, the universal center cross assembly two; 8, spline joint fork two, 9, buffer layer.
The specific embodiment
Shown in Fig. 1-2, the described a kind of automobile of the utility model embodiment is with turning to lower shaft, comprise rubber coupling assembly 1 and castellated shaft 5, one side of described rubber coupling assembly 1 and spline joint are pitched 1 and are rigidly connected, the opposite side of rubber coupling assembly 1 is connected with spline housing 6 by universal center cross assembly 1, and castellated shaft 5 is pitched 28 by universal center cross assembly 27 and spline joint and is connected; Described rubber coupling assembly 1 is provided with buffer layer 9; Be provided with dust protecting cap 3 between described spline housing 6 and the universal center cross assembly 27.
When vehicle in the process of jolting is travelled on bad road, (wheel flutter produces shimmy the radial impact ability that lower shaft is subject to during running car, lower shaft is produced radial impact power) absorb by rubber coupling assembly 1, but rubber coupling assembly 1 is subjected to structural limitations, (car load produces relative motion between vehicle body and the chassis in the process of jolting can not to absorb the axial impact force that lower shaft is subject to fully, lower drive shaft is produced axial impact force), be subjected to for a long time the axial impact force effect, there is cracking hidden danger in rubber coupling assembly 1, at this moment, cooperate slip by spline housing 6 with castellated shaft 5, can jointly absorb the axial impact force that lower shaft is subject to rubber coupling assembly 1; Buffer layer 9 can adopt rubber disc, can axial tension and radially wobble; Dust protecting cap 3 is coated on the outside of castellated shaft 5, avoids the extraneous unfavorable factor such as dust, silt, muddy water to invade in spline housing 6 and the castellated shaft 5, to improve the service life of lower shaft.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, all drops within the protection domain of the present utility model.
Claims (3)
1. an automobile is with turning to lower shaft, comprise rubber coupling assembly (1) and castellated shaft (5), it is characterized in that: a side of described rubber coupling assembly (1) and spline joint fork one (4) are rigidly connected, the opposite side of rubber coupling assembly (1) is connected with spline housing (6) by universal center cross assembly one (2), be provided with castellated shaft (5) in the spline housing (6), castellated shaft (5) is connected with spline joint fork two (8) by universal center cross assembly two (7).
2. automobile according to claim 1 is characterized in that with turning to lower shaft: described rubber coupling assembly (1) is provided with buffer layer (9).
3. automobile according to claim 1 and 2 is characterized in that with turning to lower shaft: be provided with dust protecting cap (3) between described spline housing (6) and the universal center cross assembly two (7), dust protecting cap (3) is coated on the outside of castellated shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220349865 CN202806847U (en) | 2012-07-18 | 2012-07-18 | Lower steering shaft for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220349865 CN202806847U (en) | 2012-07-18 | 2012-07-18 | Lower steering shaft for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202806847U true CN202806847U (en) | 2013-03-20 |
Family
ID=47865774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220349865 Expired - Fee Related CN202806847U (en) | 2012-07-18 | 2012-07-18 | Lower steering shaft for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202806847U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264614A (en) * | 2017-07-25 | 2017-10-20 | 徐州徐工矿山机械有限公司 | The axial fixing structure of quarry tipper steering column upper spline axle and spline housing |
| CN108275196A (en) * | 2018-01-31 | 2018-07-13 | 海宁汉钟机械设备有限公司 | A kind of automobile mechanical steering wheel assembly |
-
2012
- 2012-07-18 CN CN 201220349865 patent/CN202806847U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264614A (en) * | 2017-07-25 | 2017-10-20 | 徐州徐工矿山机械有限公司 | The axial fixing structure of quarry tipper steering column upper spline axle and spline housing |
| CN108275196A (en) * | 2018-01-31 | 2018-07-13 | 海宁汉钟机械设备有限公司 | A kind of automobile mechanical steering wheel assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |