CN2846867Y - Shaft neck root transition structure of vehicle shaft - Google Patents
Shaft neck root transition structure of vehicle shaft Download PDFInfo
- Publication number
- CN2846867Y CN2846867Y CN 200520105556 CN200520105556U CN2846867Y CN 2846867 Y CN2846867 Y CN 2846867Y CN 200520105556 CN200520105556 CN 200520105556 CN 200520105556 U CN200520105556 U CN 200520105556U CN 2846867 Y CN2846867 Y CN 2846867Y
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- Prior art keywords
- circular arc
- shaft
- combination
- vehicle
- transition structure
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- Expired - Fee Related
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a shaft neck root transition structure of a vehicle shaft. A contour line of the shaft neck root transition structure of vehicle shaft along the shaft line direction of a vehicle shaft has the structure that an outer circle of the shaft neck of the vehicle shaft is in contact with a circular arc which forms a dummy club with other geometric lines, and then the dummy club is connected with a table shoulder of the outer end of a dustproof plate seat or is directly connected with an inverse angle or an inverse circle of the outer end of the dustproof plate seat through other circular arcs or the combination of the circular arcs, straight lines or the combination of the straight lines or the combination of the circular arcs and the straight lines. The utility model has the advantages that compared with the existing transition structure between a concave-downward shaft neck root adopted by the vehicle shafts of various vehicles and the dustproof plate seat, the utility model reduces distance between the bearing center of the shaft neck and the dangerous section of the shaft neck, enlarges the diameter size of each section of the transition position of the shaft neck, improves the stress concentration of the transition position of the vehicle shat, enhances the strength and the fatigue strength of the transition position, and can effectively avoid the vehicle shaft generating fatigue fracture at the transition position.
Description
Technical field
The utility model belongs to railway, subway and various track traffic rolling stocks field, is that a kind of rolling stock axle journal root is to the dust guard seat transitional structure.
Background technique
At present, various kinds of vehicles vehicle axle journal root all is recessed to the transition structure of dust guard seat along the profile line of axle axis direction.The axletree that adopts the recessed transition structure of this class is in actual motion, and under the effect of alternate load, intermediate location is easy to generate fatigue, and and then causes fatigue fracture.
Summary of the invention
A kind of axle journal root transition structure that the utility model provides, compare to the transition structure of dust guard seat with present various kinds of vehicles vehicle axletree axle journal root that adopted, recessed, reduced axle journal carrying center to the axle journal dangerouse cross-section, be the axle journal cylindrical with the distance in the cross section, place, point of contact of its tangent arc, increased the diameter dimension in this each cross section of intermediate location, make concentrated the improving of stress of this intermediate location of axletree, intensity and fatigue strength are improved.
The technical solution adopted in the utility model is: this axle journal root transition structure is along the profile line of axle axis direction, an its axle journal cylindrical and a circular arc are tangent, this circular arc forms a boss with other geometrical line bar again, this boss passes through the combination of other circular arc or its combination, straight line or its combination or circular arc and straight line again, be connected with dust guard seat outer end shoulder, or directly be connected with outer chamfer of dust guard seat or rounding.
The beneficial effects of the utility model are: compare to the transition structure of dust guard seat with present various kinds of vehicles vehicle axletree axle journal root that adopted, recessed, reduced the distance of axle journal carrying center to the axle journal dangerouse cross-section, increased the diameter dimension in each cross section of axle journal intermediate location, make concentrated the improving of stress of this intermediate location of axletree, intensity and fatigue strength are improved, and can avoid axletree to produce fatigue fracture at this position effectively.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the view at axletree one end journal, dust guard seat and wheel seat position.
Fig. 2 is the partial enlarged drawing of axle journal root among Fig. 1, also is first embodiment's of the present utility model local configuration figure.
Fig. 3 is the partial enlarged drawing of axle journal root among Fig. 1, also is second embodiment's of the present utility model local configuration figure.
Embodiment
In Fig. 2, axle journal cylindrical 1, circular arc 2, circular arc 3, straight line 4, circular arc combination 8 connect successively, and circular arc combination 8 is connected with dust guard seat outer end shoulder 10 again.In the present embodiment, circular arc 2, circular arc 3, straight line 4 have constituted a boss.Double dot dash line 9 is profile lines of a kind of axle journal root transition structure of being adopted of present rolling stock axletree.In the present embodiment, circular arc 3, circular arc combination 8 can be circular arc or circular arc combination, can be straight line or straight line combination, can be the combination of circular arc and straight line.Straight line 4 can be a horizontal linear, also can be oblique line, and its length can be selected arbitrarily.
Axle journal cylindrical 1, circular arc 2, circular arc 3, straight line 4, circular arc 5, circular arc 6, straight line 7, circular arc combination 8 connect successively in Fig. 3, and circular arc combination 8 is connected with dust guard seat outer end shoulder 10 again.In the present embodiment, circular arc 2, circular arc 3, straight line 4, circular arc 5, circular arc 6, straight line 7 have constituted two boss.Double dot dash line 9 is profile lines of a kind of axle journal root transition structure of being adopted of present rolling stock axletree.In the present embodiment, circular arc 3, circular arc 6, circular arc combination 8 can be circular arc or circular arc combination, can be straight line or straight line combination, can be the combination of circular arc and straight line.Straight line 4, straight line 7 can be horizontal linears, also can be oblique lines, and its length can be selected arbitrarily.
Claims (4)
1. axle journal root transition structure, its profile line along the axle axis direction is formed, axle journal cylindrical (1) is tangent with circular arc (2), how much lines of circular arc (2) and other and circular arc combination (8) are connected successively, circular arc combination (8) is connected with dust guard seat outer end shoulder again, or directly be connected with outer chamfer of dust guard seat or rounding, it is characterized in that: circular arc (2) forms a boss with other geometrical line bar.
2. a kind of axle journal root transition structure according to claim 1, it is characterized in that: transition structure is to add circular arc combination (8) by one or more similar boss that formed by circular arc (2) and other geometrical line bar to be constituted along the profile line of axle axis direction.
3. a kind of axle journal root transition structure according to claim 1 is characterized in that: transition structure is horizontal linear or oblique line along the straight line in the profile line of axle axis direction (4), straight line (7), and its length can be selected arbitrarily.
4. a kind of axle journal root transition structure according to claim 1 is characterized in that: transition structure along the circular arc in the profile line of axle axis direction (3), circular arc (6), circular arc combination (8) be circular arc or circular arc combination, be straight line or straight line combination, be the combination of circular arc and straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105556 CN2846867Y (en) | 2005-08-10 | 2005-08-10 | Shaft neck root transition structure of vehicle shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105556 CN2846867Y (en) | 2005-08-10 | 2005-08-10 | Shaft neck root transition structure of vehicle shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2846867Y true CN2846867Y (en) | 2006-12-13 |
Family
ID=37512290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520105556 Expired - Fee Related CN2846867Y (en) | 2005-08-10 | 2005-08-10 | Shaft neck root transition structure of vehicle shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2846867Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102131615A (en) * | 2008-08-22 | 2011-07-20 | 斯堪尼亚商用车有限公司 | Vehicle axle |
| CN103277400A (en) * | 2013-06-20 | 2013-09-04 | 苏州速腾电子科技有限公司 | Driving shaft for speed reducer |
| CN104527328A (en) * | 2015-01-14 | 2015-04-22 | 安徽安凯福田曙光车桥有限公司 | New-structure high-strength driving axle housing |
| CN104773033A (en) * | 2015-04-09 | 2015-07-15 | 齐齐哈尔轨道交通装备有限责任公司 | Railway wagon and axle thereof |
| CN105805147A (en) * | 2015-01-21 | 2016-07-27 | 住友重机械工业株式会社 | Gear shaft |
| CN107088738A (en) * | 2017-04-18 | 2017-08-25 | 资阳中车传动有限公司 | A kind of axis products surface accurate curved-surface processing method |
-
2005
- 2005-08-10 CN CN 200520105556 patent/CN2846867Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102131615A (en) * | 2008-08-22 | 2011-07-20 | 斯堪尼亚商用车有限公司 | Vehicle axle |
| CN103277400A (en) * | 2013-06-20 | 2013-09-04 | 苏州速腾电子科技有限公司 | Driving shaft for speed reducer |
| CN104527328A (en) * | 2015-01-14 | 2015-04-22 | 安徽安凯福田曙光车桥有限公司 | New-structure high-strength driving axle housing |
| CN105805147A (en) * | 2015-01-21 | 2016-07-27 | 住友重机械工业株式会社 | Gear shaft |
| CN104773033A (en) * | 2015-04-09 | 2015-07-15 | 齐齐哈尔轨道交通装备有限责任公司 | Railway wagon and axle thereof |
| CN107088738A (en) * | 2017-04-18 | 2017-08-25 | 资阳中车传动有限公司 | A kind of axis products surface accurate curved-surface processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |