CN201544721U - Trailer axle tube with straight line shaped chamfer - Google Patents
Trailer axle tube with straight line shaped chamfer Download PDFInfo
- Publication number
- CN201544721U CN201544721U CN2009201810284U CN200920181028U CN201544721U CN 201544721 U CN201544721 U CN 201544721U CN 2009201810284 U CN2009201810284 U CN 2009201810284U CN 200920181028 U CN200920181028 U CN 200920181028U CN 201544721 U CN201544721 U CN 201544721U
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- CN
- China
- Prior art keywords
- axle
- straight line
- chamfer
- bearing position
- axle tube
- 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 trailer axle tube with a straight line shaped chamfer, which belongs to a rigid axle of two wheels, in particular to an automobile trailer axle tube. An outer bearing position, a transition position, an inner bearing position, a chamfer section, an axle shoulder and an axle body are connected to be as a whole. The trailer axle tube with the straight line shaped chamfer is characterized in that the chamfer section is in a regular conical shape, the axle ridge line thereof is a straight line, and one end of the axle ridge line is connected with the inner bearing position line and the other end thereof is connected with an axle shoulder line; a stop ring is arranged on the chamfer section, and the concave conical surface of the stop ring is sealed with the conical surface of a chamfer; and an inner bearing is installed on the inner bearing position and axially positioned by the stop ring and the axle shoulder. Compared with the prior art, the trailer axle tube with the straight line shaped chamfer has the advantages of improvement of stress concentration phenomenon, reduction of stress amplitude and prolonging of the fatigue life of the axle tube during loading as the straight line shaped chamfer changes the stress distribution when the axle tube is forced, easy machining, improvement of machining efficiency, improvement of travelling safety and reduction of part consumption and accident and failure cost.
Description
Technical field
The utility model belongs to the rigidity axletree that is used for two wheels, relates in particular to auto trailer axletree central siphon.
Background technology
Auto trailer axletree central siphon two ends running in bearings is connected with wheel, bears load.Current, adopt the transition of arc surface shape chamfering between the neck bearing position of Trailer car shaft central siphon and the shaft shoulder, the axle crestal line is that the chamfering cross hatch is a circular arc line.Neck bearing is loaded on the neck bearing position of central siphon.Its defective is, during the carrying of car central siphon, stress concentration very easily cracks in arc surface shape chamfering section, and then causes the central siphon fracture, and the axletree central siphon is short service life, influence traffic safety, and it is many to consume spare part, processing failure costs height; Arc surface shape chamfering adopts ground finish, and work efficiency is low, the cost height.
Summary of the invention
In order to overcome the shortcoming that prior art exists, the purpose of this utility model provides a kind of Trailer car shaft central siphon with the linear chamfering, improves axletree central siphon work efficiency, prolongs central siphon service life, minimizing spare part and processing failure costs.
The Trailer car shaft central siphon of band linear chamfering, comprise that outer bearing position, transition position, neck bearing position, chamfering section, the shaft shoulder and axis body connect as one, characteristics are, the chamfering section of described central siphon is regular circular conical surface shape, its crestal line is a linear, axle crestal line one end is connected the other end and shaft shoulder wire joint with the neck bearing bit line; Back-up ring is loaded on the chamfering section, the recessed circular conical surface driving fit mutually of the circular conical surface of chamfering and back-up ring; Neck bearing is loaded on the neck bearing position, by back-up ring and shaft shoulder axial location.The straight line chamfering is formed by machined into, convenient processing.
Compared with prior art, the utility model has the advantages that: the linear chamfering has changed the distribution of stress when central siphon is stressed, has improved the stress concentration phenomenon, and stress amplitude descends during carrying, and the central siphon integral fatigue life rises; Be easy to processing, improved work efficiency, reduced productive costs; Improve traveling security, reduce spare parts consumption and handling failure expense.
Description of drawings
Fig. 1 is the structural representation of the Trailer car shaft central siphon of band linear chamfering.
The specific embodiment
With the Trailer car shaft central siphon of linear chamfering, be connected in one by outer bearing position 1, transition position 2, neck bearing position 3, straight line chamfering section 4, the shaft shoulder 5 and axle body 6 as seen from Figure 1, chamfering is a circular conical surface shape, and the axle crestal line is a straight line.Neck bearing 7 is loaded on the neck bearing position 3, and back-up ring 8 cancave cambered surfaces are loaded on the circular conical surface of chamfering section, and neck bearing 7 is axially fixed on the central siphon by back-up ring 8, the shaft shoulder 5, stress concentration phenomenon when avoiding carrying.By being Φ 88.9mm to neck bearing position diameter, the thickness of back-up ring 8 is 14mm, and chamfering is that the central siphon of 6 * 6mm carries out FEM (finite element) calculation, and compared with prior art, stress amplitude descends 21.5%, and the central siphon integral fatigue life rises 17.2%.The axletree central siphon of this specification is applicable to the Trailer car shaft of rated load 12-20 ton.
Claims (1)
1. be with the Trailer car shaft central siphon of linear chamfering, comprise that outer bearing position (1), transition position (2), neck bearing position (3), chamfering section (4), the shaft shoulder (5) and axis body (6) connect as one, it is characterized in that the circular conical surface shape of described chamfering section (4) for rule, its crestal line is a linear, axle crestal line one end and neck bearing position (3) wire joint, the other end and the shaft shoulder (5) wire joint; Back-up ring (8) is loaded on the chamfering section (4), the recessed circular conical surface driving fit mutually of the circular cone of chamfering and back-up ring (8); Neck bearing (7) is loaded on the neck bearing position (3), by back-up ring (8) and the shaft shoulder (5) axial location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201810284U CN201544721U (en) | 2009-12-04 | 2009-12-04 | Trailer axle tube with straight line shaped chamfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201810284U CN201544721U (en) | 2009-12-04 | 2009-12-04 | Trailer axle tube with straight line shaped chamfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201544721U true CN201544721U (en) | 2010-08-11 |
Family
ID=42599883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201810284U Expired - Fee Related CN201544721U (en) | 2009-12-04 | 2009-12-04 | Trailer axle tube with straight line shaped chamfer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201544721U (en) |
-
2009
- 2009-12-04 CN CN2009201810284U patent/CN201544721U/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 | ||
| 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: 20100811 Termination date: 20171204 |