CN203727456U - Telescopic shaft - Google Patents
Telescopic shaft Download PDFInfo
- Publication number
- CN203727456U CN203727456U CN201420093093.2U CN201420093093U CN203727456U CN 203727456 U CN203727456 U CN 203727456U CN 201420093093 U CN201420093093 U CN 201420093093U CN 203727456 U CN203727456 U CN 203727456U
- Authority
- CN
- China
- Prior art keywords
- shaft
- outer shaft
- interior axle
- telescopic shaft
- axial
- 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
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a telescopic shaft applied to automotive steering equipment. The telescopic shaft is structurally formed by tabling an outer shaft and an inner shaft in such a manner that the outer shaft and the inner shaft freely slide in the axial direction but do not rotate in the rotation direction. The outer periphery of the outer shaft or the inner periphery of the inner shaft is provided with a resin layer on at least part of the axial overlapped portions of the outer shaft and the inner shaft. The telescopic shaft is characterized in that one axial end of the resin layer is provided with a part no perpendicular to the axial direction. Therefore, stable axial telescoping can be achieved.
Description
Technical field
The utility model relates to telescopic shaft, and this telescopic shaft is the telescopic shaft that automobile is used, can transmitting torque, and relative sliding vertically.
Background technology
Used a kind of telescopic shaft, it forms protruding sawtooth in the periphery of metal outer shaft in the past, on the interior week of metal interior axle, forms recessed sawtooth, makes outer shaft and interior axle chimeric, and has sandwiched lubricant composition between outer shaft and interior axle.
Owing to only having sandwiched lubricant composition between outer shaft and interior axle, so in long-term use, the lubricant composition between outer shaft and interior axle can be exhausted, produces metal contact each other, the situation of axle upward sliding cannot be stably carried out in existence.
Utility model content
Therefore, the utility model provides a kind of telescopic shaft, it uses in the steering hardware of using at automobile, make outer shaft and interior axle to slide axially freely but not revolvable mode is chimeric mutually along hand of rotation, it is characterized in that, in the periphery of described outer shaft or on the interior week of described interior axle, and at least a portion of overlapping part, be provided with resin bed vertically at described outer shaft and described interior axle, the end face of at least one party in the axial direction of described resin bed have with respect to axial out of plumb the part that forms.
In addition, be preferably, on described fitting portion, be coated with lubricant composition.
In addition, be preferably, described outer shaft and described interior axle are metal system.
Thus, in the utility model, make outer shaft and interior axle chimeric, and be provided with resin bed at least a portion of overlapping vertically part.Due to the existence of resin bed, even the in the situation that of lubricant composition exhaustion, also can, by between metal and resin or flexible on carrying out axially of resin slip each other, thus, can obtain stable sliding capability.And, on the end face of resin bed, be provided with respect to being not axially the part at right angle, thus, can realize more stable slip.
Brief description of the drawings
Fig. 1 is the figure of explanation telescopic shaft of the present utility model, and (a) is wherein lateral plan, and (b) is wherein the cutaway view in the b-b cross section in (a).
Fig. 2 is the figure of explanation telescopic shaft of the present utility model.
Description of reference numerals
1 outer shaft
2 interior axles
3 sawtooth
4 sawtooth
5 coverlays
6 ends
Detailed description of the invention
As shown in Fig. 1 (a), telescopic shaft of the present utility model is made up of metal outer shaft 1 and metal interior axle 2.On a side's of outer shaft 1 end, there is Hooke's coupling, in the periphery of the opposing party's end, be provided with axial sawtooth 3.On a side's of interior axle 2 end, also there is Hooke's coupling, on the interior week of the opposing party's end, be formed with the sawtooth corresponding with the sawtooth of outer shaft 4.By chimeric these corresponding serrated portion and form can be flexible vertically telescopic shaft.
In telescopic shaft of the present utility model, in the sawtooth 3 of outer shaft 1, under common chimerism with at least a portion of the overlapping part of interior axle on, form the coverlay 5 of the resin of promising resin bed.Thus, in the time of expanding-contracting action, become the slip between metal and resin, can stretch swimmingly thus.In addition, though not shown, at least on the telescoping part between outer shaft 1 and interior axle 2, be coated with lubricant composition.In addition, the thickness of coverlay 5 is 2mm left and right to the maximum, to can not hinder the transmission of power to hand of rotation.In addition, Fig. 1 (b) is the cutaway view of b-b cross section in (a) of presentation graphs 1 (with respect to axial vertical direction).
In telescopic shaft of the present utility model, from the end face of the side that is provided with sawtooth 3 of outer shaft 1, towards the end face of opposite side and until the end 6 of resin is formed with the coverlay 5 being made up of resin.And end 6 is not with respect to being axially vertical, but there is angle of inclination.Thus, in the time of expanding-contracting action, can make lubricant composition be easy to be introduced into the periphery of resin covering film 5 and between the interior week of interior axle 2, and be easy to discharge.Thus, make expanding-contracting action become more smooth and easy.
In addition, end 6 can not be also straight line, for example, can be also the shape of the curve shown in Fig. 2.In addition, in illustrated example, on outer shaft 1, apply the coverlay of resin, but the coverlay of resin also can be set on the interior week of interior axle 2.In addition, the cross section of graphic outer shaft 1, interior axle 2 is circular, but can be also polygon etc.
Claims (3)
1. a telescopic shaft, it uses in the steering hardware of using at automobile, make outer shaft and interior axle to slide axially freely but not revolvable mode is chimeric mutually along hand of rotation, it is characterized in that, in the periphery of described outer shaft or on the interior week of described interior axle, and at least a portion of overlapping part, be provided with resin bed vertically at described outer shaft and described interior axle, the end face of at least one party in the axial direction of described resin bed have with respect to axial out of plumb the part that forms.
2. telescopic shaft according to claim 1, is characterized in that, on described fitting portion, is coated with lubricant composition.
3. telescopic shaft according to claim 1, is characterized in that, described outer shaft and described interior axle are metal system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420093093.2U CN203727456U (en) | 2014-03-03 | 2014-03-03 | Telescopic shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420093093.2U CN203727456U (en) | 2014-03-03 | 2014-03-03 | Telescopic shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203727456U true CN203727456U (en) | 2014-07-23 |
Family
ID=51197551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420093093.2U Expired - Fee Related CN203727456U (en) | 2014-03-03 | 2014-03-03 | Telescopic shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203727456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107458499A (en) * | 2016-06-06 | 2017-12-12 | 株式会社捷太格特 | The method for manufacturing spline telescopic shaft |
| CN108001393A (en) * | 2016-10-27 | 2018-05-08 | 长城汽车股份有限公司 | The lubrication mounting structure and vehicle of telescopic shaft |
-
2014
- 2014-03-03 CN CN201420093093.2U patent/CN203727456U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107458499A (en) * | 2016-06-06 | 2017-12-12 | 株式会社捷太格特 | The method for manufacturing spline telescopic shaft |
| CN107458499B (en) * | 2016-06-06 | 2021-10-01 | 株式会社捷太格特 | Method for manufacturing spline telescopic shaft |
| CN108001393A (en) * | 2016-10-27 | 2018-05-08 | 长城汽车股份有限公司 | The lubrication mounting structure and vehicle of telescopic shaft |
| CN108001393B (en) * | 2016-10-27 | 2020-08-11 | 长城汽车股份有限公司 | Lubricated mounting structure and vehicle of telescopic shaft |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20200303 |