CN102991273A - Car axle - Google Patents
Car axle Download PDFInfo
- Publication number
- CN102991273A CN102991273A CN2012105244520A CN201210524452A CN102991273A CN 102991273 A CN102991273 A CN 102991273A CN 2012105244520 A CN2012105244520 A CN 2012105244520A CN 201210524452 A CN201210524452 A CN 201210524452A CN 102991273 A CN102991273 A CN 102991273A
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- Prior art keywords
- axletree
- diameter
- axle
- wheel seat
- axle body
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Abstract
The invention provides a car axle. The two ends of an axle body are symmetrically provided with wheel seats, one side of each wheel seat back to the axle body is provided with an axle neck, the middle part of the axle body is a cylinder, the two ends of the cylinder are provided with frustums, and the diameter of each frustum is gradually increased towards the direction of the wheel seat; and the diameter L1 of each wheel seat is greater than the diameter L2 of the cylinder at the middle part of the axle body, and the diameter L2 is greater than the diameter L3 of the axle neck. The car axle provided by the invention is simple in structure, and can effectively reduce the dead weight under the condition of keeping a wheel pair balanced.
Description
Technical field
The present invention relates to the city railway vehicle technology, relate in particular to a kind of axletree.
Background technology
Axletree refers to penetrate the cylindrical component that bears tare in the nave boss, is one of most important parts that are related to traffic safety.5M wheel in the existing South African City guideway vehicle is not more than in the South Africa city rail vehicle of 100km/h being applied to running velocity, and former vehicle wheel is to being purchased from Europe by South Africa, and axletree adopts eccentric axletree, and being in operation is unfavorable for wheel to balance, and the axletree deadweight is heavier.
Summary of the invention
The object of the invention is to, for above-mentioned existing axletree problem, propose a kind of axletree, in the situation that keeps wheel to balance, effectively reduce deadweight.
For achieving the above object, the technical solution used in the present invention is: a kind of axletree, axle body two ends symmetry be provided with wheel seat, the side that described wheel seat deviates from axle body is provided with axle journal; Described axle body middle part is cylinder, the frustum of described cylinder two ends for increasing gradually to the wheel seat orient diameter; Described wheel seat diameter L1＞axle body middle part cylinder diameter L2＞axle journal diameter L3.
Further, the described axle body length 1/3-1/2 that is the overall length of axle degree.
Further, cylinder length is the 1/5-1/6 of axle body length in the middle part of the described axle body.
Further, described wheel seat adopts arc surface to be connected with axle body, and the center of circle of described arc surface is in the outside of this axletree.
Further, described wheel seat adopts arc surface to be connected with axle journal, and the center of circle of described arc surface is in the outside of this axletree.
Further, described wheel seat adopts two arc surfaces to be connected with axle journal, and the center of circle of described arc surface is in the outside of this axletree.
Further, described wheel seat diameter L1: axle body middle part cylinder diameter L2: axle journal diameter L3=1:03-05:07-08.
Further, described wheel seat diameter L1: axle body middle part cylinder diameter L2: axle journal diameter L3=1:0.4:0.75.
Further, described axletree is LZ50 steel axletree.
Axle construction of the present invention is simple, rationally, according to the stressed size in each position of axletree, appropriate design the size of axletree each several part diameter, keeping wheel can effectively alleviate deadweight in to the situation of balance.By finite element analysis software ANSYS12.0 static structural analysis technology, the strength and stiffness that axletree of the present invention is adopted have carried out finite element analysis computation, calculate as can be known that the maximum stress point safety factor satisfies the regulation of strength at repeated alternation safety factor 1.3 ~ 1.5 allowable in " mechanical design handbook " greater than 2 under all loads of this axletree.Be applicable to the 5M wheel city rail vehicle in the South African City guideway vehicle.
Description of drawings
Fig. 1 is the structural representation of axletree of the present invention.
The specific embodiment
Embodiment 1
Fig. 1 is the structural representation of axletree of the present invention.
Present embodiment discloses a kind of axletree, as shown in Figure 1, these axletree axle body 2 two ends symmetries be provided with wheel seat 1, the side that wheel seat 1 deviates from axle body is provided with axle journal 3; Axle body 2 middle parts are cylinder, the frustum of cylinder two ends for increasing gradually to the wheel seat orient diameter; Wheel seat 1 diameter L1＞axle body 2 middle part cylinder diameter L2＞axle journals 3 diameter L3.Particularly, wheel seat diameter L1 is 177mm, and axle body middle part cylinder diameter L2 is 152mm, and axle journal diameter L3 is 131mm.
The overall length of axle degree is 1831mm, and axle body 2 length are 915mm, and axle body middle part cylinder length is 152mm.
Wheel seat 1 adopts arc surface to be connected with axle body 2, and the center of circle of arc surface is in the outside of this axletree.Wheel seat 1 adopts two arc surfaces to be connected with axle journal 3, and the center of circle of arc surface is in the outside of this axletree.
Axletree is LZ50 steel axletree in the present embodiment, and the employing standard is TB/T2945-1999 " railway vehicle with LZ50 steel axletree and steel billet engineering factor " (this standard is equal to the AAR-M101 standard).
To sum up, the stressed size reasonable in each position of present embodiment axletree, stressed larger part diameter is relatively large, and stressed smaller part diameter less shaft diameter maximum is the wheel seat part, and the diameter of axle journal is smaller than the diameter at axle body middle part.In addition, cause that for avoiding the diameter flip-flop stress is concentrated, adopt arc transition between wheel seat and axle body, wheel seat and axle journal.And this axletree is without relief groove.The present embodiment axletree joined at the enterprising luggage of three-dimensional simulation draw, the disclosed axletree of present embodiment can keep wheel to balance, and actv. has alleviated deadweight simultaneously, meets AAR(North America railway association criterion), the EN(European standard) and Chinese Railway standard.The disclosed axletree of present embodiment satisfies the operating needs of South Africa 5M wheel city rail vehicle.
Embodiment 2
The disclosed axletree wheel seat of present embodiment adopts an arc surface to be connected with axle journal as different from Example 1, and the center of circle of described arc surface is in the outside of this axletree.
The overall length of axle degree is 1831mm, and axle body length is 915mm, and axle body middle part cylinder length is 160.Wheel seat diameter L1 is 177mm: axle body middle part cylinder diameter L2 is 160mm: axle journal diameter L3 is 131mm.
Embodiment 3
The disclosed overall length of axle degree of present embodiment is 1831mm as different from Example 1, and axle body length is 915mm, and axle body middle part cylinder length is 170.Wheel seat diameter L1 is 196mm: axle body middle part cylinder diameter L2 is 152mm: axle journal diameter L3 is 131mm.
The present invention is not limited to the described axletree of above-described embodiment, and the change of axletree material and size is all within protection scope of the present invention.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. axletree, axle body two ends symmetry be provided with wheel seat, the side that described wheel seat deviates from axle body is provided with axle journal, it is characterized in that, described axle body middle part be cylinder, described cylinder two ends are the frustum that increases gradually to the wheel seat orient diameter; Described wheel seat diameter L1＞axle body middle part cylinder diameter L2＞axle journal diameter L3.
2. described axletree according to claim 1 is characterized in that described axle body length is the 1/3-1/2 of overall length of axle degree.
3. described axletree according to claim 1 is characterized in that, described axle body middle part cylinder length is the 1/5-1/6 of axle body length.
4. described axletree according to claim 1 is characterized in that, described wheel seat adopts arc surface to be connected with axle body, and the center of circle of described arc surface is in the outside of this axletree.
5. described axletree according to claim 1 is characterized in that, described wheel seat adopts arc surface to be connected with axle journal, and the center of circle of described arc surface is in the outside of this axletree.
6. described axletree according to claim 4 is characterized in that, described wheel seat and axle journal adopt two arc surfaces to be connected, and the center of circle of described arc surface is in the outside of this axletree.
7. described axletree according to claim 1 is characterized in that described wheel seat diameter L1: axle body middle part cylinder diameter L2: axle journal diameter L3=1:0.3-0.5:0.7-0.8.
8. described axletree according to claim 7 is characterized in that described wheel seat diameter L1: axle body middle part cylinder diameter L2: axle journal diameter L3=1:0.4:0.75.
9. the described axletree of any one is characterized in that according to claim 1-8, and described axletree is LZ50 steel axletree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105244520A CN102991273A (en) | 2012-12-07 | 2012-12-07 | Car axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105244520A CN102991273A (en) | 2012-12-07 | 2012-12-07 | Car axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102991273A true CN102991273A (en) | 2013-03-27 |
Family
ID=47920595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105244520A Pending CN102991273A (en) | 2012-12-07 | 2012-12-07 | Car axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102991273A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325843A (en) * | 2014-10-20 | 2015-02-04 | 常州市浩亮铜棒厂 | Reinforced axle |
| 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 |
| CN105196794A (en) * | 2015-09-24 | 2015-12-30 | 南车南京浦镇车辆有限公司 | Motor car axle for low floor bogie |
| CN109185327A (en) * | 2018-09-14 | 2019-01-11 | 汉中天行智能飞行器有限责任公司 | A kind of hyperbola multidiameter shaft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026217A (en) * | 1975-08-07 | 1977-05-31 | Parsons, Brinckerhoff, Quade & Douglas, Inc. | Self steering railway axles and wheels on track curvatures |
| US4307910A (en) * | 1980-04-04 | 1981-12-29 | Pullman Incorporated | Railway wheels and light weight axles |
| CN201507540U (en) * | 2009-10-15 | 2010-06-16 | 中国北车集团大同电力机车有限责任公司 | Axle shaft structure |
| CN201696456U (en) * | 2010-05-21 | 2011-01-05 | 南车株洲电力机车有限公司 | Alloy steel hollow axle |
| CN202944153U (en) * | 2012-12-07 | 2013-05-22 | 长春轨道客车装备有限责任公司 | Automotive axle |
-
2012
- 2012-12-07 CN CN2012105244520A patent/CN102991273A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026217A (en) * | 1975-08-07 | 1977-05-31 | Parsons, Brinckerhoff, Quade & Douglas, Inc. | Self steering railway axles and wheels on track curvatures |
| US4307910A (en) * | 1980-04-04 | 1981-12-29 | Pullman Incorporated | Railway wheels and light weight axles |
| CN201507540U (en) * | 2009-10-15 | 2010-06-16 | 中国北车集团大同电力机车有限责任公司 | Axle shaft structure |
| CN201696456U (en) * | 2010-05-21 | 2011-01-05 | 南车株洲电力机车有限公司 | Alloy steel hollow axle |
| CN202944153U (en) * | 2012-12-07 | 2013-05-22 | 长春轨道客车装备有限责任公司 | Automotive axle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325843A (en) * | 2014-10-20 | 2015-02-04 | 常州市浩亮铜棒厂 | Reinforced axle |
| 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 |
| CN105196794A (en) * | 2015-09-24 | 2015-12-30 | 南车南京浦镇车辆有限公司 | Motor car axle for low floor bogie |
| CN109185327A (en) * | 2018-09-14 | 2019-01-11 | 汉中天行智能飞行器有限责任公司 | A kind of hyperbola multidiameter shaft |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |