CN203019977U - Through-type drive axle splined main shaft - Google Patents
Through-type drive axle splined main shaft Download PDFInfo
- Publication number
- CN203019977U CN203019977U CN 201320015878 CN201320015878U CN203019977U CN 203019977 U CN203019977 U CN 203019977U CN 201320015878 CN201320015878 CN 201320015878 CN 201320015878 U CN201320015878 U CN 201320015878U CN 203019977 U CN203019977 U CN 203019977U
- Authority
- CN
- China
- Prior art keywords
- shaft
- drive axle
- external spline
- main shaft
- type drive
- 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
The utility model relates to a splined main shaft on a through-type drive axle, and aims at providing the through-type drive axle splined main shaft, which is stable in structure and increased in torsional fatigue strength. A front external spline and a rear external spline are arranged on the outer wall of the through-type drive axle splined main shaft, a shaft shoulder is arranged between the front external spline and the rear external spline, the connection root part of the rear external spline and the shoulder shaft adopts round corner transition, preferably, the round corner radius of the connection root part of the rear external spline with the shoulder shaft is 1.6mm-2mm, and the round corner radius is 2mm. By adopting the splined main shaft, an unloading groove structure at the connection root part of the shaft shoulder with the rear external spline is eliminated, the large round corner transition is adopted, the breakage of the splined shaft caused by alternating stress is prevented and the problem of high fault rate in the hollow shaft market is solved.
Description
Technical field
The utility model relates to a kind of castellated shaft, particularly the spline spindle on a kind of through-drive axle.
Background technology
At present, the spline spindle of heavy motor vehicle through-drive axle adopts hollow spline spindle mostly, this spline spindle is provided with front side male splines and rear side male splines, be provided with the shaft shoulder between front side male splines and rear side male splines, this rear side male splines is connected the connection root and is had the spron structure with the shaft shoulder, concentrates although this structure can reduce stress, but affecting polar moment of inertia limited and herein reduces, fatigue resistance is not high, easily produces fracture, causes and uses the fault rate of this kind spline spindle to remain high.
The utility model content
For deficiency of the prior art, it is more firm that the utility model aims to provide a kind of structure, improves the through-drive axle spline spindle of torsional fatigue strength.
In order to address the above problem, this kind through-drive axle spline spindle, this spline spindle outer wall is provided with front side male splines and rear side male splines, be provided with the shaft shoulder between front side male splines and rear side male splines, this through-drive axle spline spindle is characterised in that: described rear side male splines adopts round-corner transition with the root that is connected of the shaft shoulder.
Preferably, described rear side male splines with the radius of rounding that is connected root of the shaft shoulder is: 1.6mm～2mm.Described radius of rounding is: 2mm.
The beneficial effects of the utility model are: the spron structure at the root place that this spline spindle has cancelled that the shaft shoulder is connected with the rear side male splines, use the Rouno Cormer Pregrinding Wheel transition instead, prevent castellated shaft because of the reverse stress fracture, solved the problem that hollow shaft market fault rate is remained high.
Description of drawings
Fig. 1 is vertical sectional structure schematic diagram of through-drive axle spline spindle of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, a kind of through-drive axle spline spindle of the present utility model, this spline spindle has endoporus 1, have outside thread 2 and bearing fit face 3 on the outer wall of main shaft one end, the outer wall of the other end is provided with front side male splines 7 and rear side male splines 4, be provided with the shaft shoulder 6 between front side male splines 7 and rear side male splines 4, the corresponding automobile power input end in front side here, the corresponding clutch end of rear side.This rear side male splines 4 adopts fillet 5 transition with the root that is connected of the shaft shoulder 6.This radius of rounding R is: 1.6mm～2mm, preferably, this radius of rounding R is: 2mm.
The spron structure at the root place that this spline spindle has cancelled that the shaft shoulder is connected with the rear side male splines is used the Rouno Cormer Pregrinding Wheel transition instead, prevent castellated shaft because of the reverse stress fracture, has solved the problem that hollow shaft market fault rate is remained high.
Claims (3)
1. through-drive axle spline spindle, this spline spindle outer wall is provided with front side male splines (7) and rear side male splines (4), be provided with the shaft shoulder (6) between front side male splines (7) and rear side male splines (4), this through-drive axle spline spindle is characterised in that: described rear side male splines (4) adopts round-corner transition with the root that is connected of the shaft shoulder (6).
2. through-drive axle spline spindle according to claim 1, it is characterized in that: described rear side male splines (4) with the radius of rounding that is connected root (R) of the shaft shoulder (6) is: 1.6mm～2mm.
3. through-drive axle spline spindle according to claim 2, it is characterized in that: described radius of rounding (R) is: 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320015878 CN203019977U (en) | 2013-01-11 | 2013-01-11 | Through-type drive axle splined main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320015878 CN203019977U (en) | 2013-01-11 | 2013-01-11 | Through-type drive axle splined main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203019977U true CN203019977U (en) | 2013-06-26 |
Family
ID=48643981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320015878 Expired - Fee Related CN203019977U (en) | 2013-01-11 | 2013-01-11 | Through-type drive axle splined main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203019977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666047A (en) * | 2015-09-09 | 2016-06-15 | 重庆文理学院 | Hollow shaft with rectangular external spline and manufacturing method thereof |
-
2013
- 2013-01-11 CN CN 201320015878 patent/CN203019977U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666047A (en) * | 2015-09-09 | 2016-06-15 | 重庆文理学院 | Hollow shaft with rectangular external spline and manufacturing method thereof |
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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: 20130626 Termination date: 20200111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |