CN204870335U - A wheel for railway vehicle - Google Patents
A wheel for railway vehicle Download PDFInfo
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- CN204870335U CN204870335U CN201520482207.7U CN201520482207U CN204870335U CN 204870335 U CN204870335 U CN 204870335U CN 201520482207 U CN201520482207 U CN 201520482207U CN 204870335 U CN204870335 U CN 204870335U
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- tread
- arc section
- wheel
- root
- linear portion
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Abstract
The utility model discloses a wheel for railway vehicle, including rim, rim root, tread and the tread outside that connects gradually, first tread circular arc section, tread straightway and second tread circular arc section that the tread connected gradually including head and the tail, the one end of first tread circular arc section with the rim root links to each other, the one end of second tread circular arc section with the tread outside links to each other, just first tread circular arc section, tread straightway and the orbital appearance phase -match of second tread circular arc duan junyu. The utility model provides an appearance of back face of the rim and tread can with track accurate matching, make the wheel have better dynamic performance and contact fatigue performance.
Description
Technical field
The utility model relates to a kind of wheel, particularly relates to the wheel for railway vehicle.
Background technology
The wheel of rolling stock is the critical component in rolling stock, and the dynamic performance of its profile and vehicle is closely related, affects the safety in operation of train, the abrasion etc. of wheel rail system.For a long time, continue to use the wheel that traditional Empirical Design obtains, its profile, especially outside wheel rim and tread contour cannot with track exact matching, dynamic performance and the contact fatigue property of wheel are poor.
Utility model content
The technical problems to be solved in the utility model is to overcome the wheel for railway vehicle traditional in prior art, its profile cannot with track exact matching, the dynamic performance of wheel and the defect such as contact fatigue property is poor, a kind of wheel for railway vehicle is provided, the profile of this wheel, particularly outside wheel rim and tread profile can with track exact matching, make wheel have good dynamic performance and contact fatigue property.
The utility model solves above-mentioned technical matters by following technical proposals:
For a wheel for railway vehicle, comprise outside the wheel rim, wheel rim root, tread and the tread that connect successively, its feature is, described tread comprises the first tread arc section, tread linear portion and the second tread arc section that head and the tail connect successively;
One end of described first tread arc section is connected with described wheel rim root, and one end of described second tread arc section is connected with outside described tread, and described first tread arc section, tread linear portion and the second tread arc section all match with the profile of track.
Preferably, the radius of described first tread arc section is 538.31mm;
The radius of described second tread arc section is 91.07mm;
Described tread linear portion is a horizontal linear, and the length of described tread linear portion is 9.6mm.
Preferably, described wheel rim root comprises the first root arc section and the second root arc section that connect successively from beginning to end, one end of described first root arc section is connected with described wheel rim, one end of described second root arc section is connected with one end of described first tread arc section, and described first root arc section and the second root arc section all match with the profile of track.
Preferably, the radius of described first root arc section is 17.19mm, and the radius of described second root arc section is 142.98mm.
Preferably, described wheel rim comprises wheel rim linear portion, the first wheel rim arc section, the second wheel rim arc section and the third round edge arc section that head and the tail connect successively, and described third round edge arc section is connected with the other end of described first root arc section.
Preferably, the radius of described first wheel rim arc section is 24mm;
The radius of described second wheel rim arc section is 12mm;
The radius of described third round edge arc section is 18mm.
Preferably, linear portion outside linear portion and second outside comprising interconnective first outside described tread, and outside described first, one end of linear portion is connected with one end of described second tread arc section.
Preferably, outside described first, the horizontal length of linear portion is 29.76mm, and outside described first, the horizontal length of linear portion and the ratio of vertical length are 16:1;
Outside described second, the horizontal length of linear portion is 5mm, vertically length is 5mm.
Positive progressive effect of the present utility model is:
The shape of described wheel rim root and tread can realize the exact matching with the profile of track, when the cross travel of wheel is less, the wheel footpath difference of wheel is less, the stability that wheel keeps higher on rectilinear orbit can be made, when the cross travel of wheel is larger, the wheel footpath difference of wheel is comparatively large, to improve by mechanical property during curve track, reduce abrasion, and make wheel have good contact fatigue property.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wheel for railway vehicle of preferred embodiment of the present utility model.
Description of reference numerals:
Wheel rim: 1
Wheel rim root: 2
Tread: 3
Outside tread: 4
The radius of the first wheel rim arc section: R1
The radius of the second wheel rim arc section: R2
The radius of third round edge arc section: R3
The radius of the first root arc section: R4
The radius of the second root arc section: R5
The radius of the first tread arc section: R6
The radius of the second tread arc section: R7
The length of tread linear portion: L1
The horizontal length of linear portion: L2 outside first
The vertical length of linear portion: L3 outside first
The horizontal length of linear portion: L4 outside second
The vertical length of linear portion: L5 outside second
Detailed description of the invention
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the utility model to be described.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
For a wheel for railway vehicle, comprise outside the wheel rim, wheel rim root, tread and the tread that connect successively.
Wherein, the shape of wheel rim root and tread can realize the exact matching with the profile of track, and, assuming that tread and track are single-contact, and using wheel relative to track without contact point during transversal displacement as the origin of coordinates O of x-y two-dimensional coordinate system time, the coordinate figure outside wheel rim, wheel rim root, tread and tread in x-y two dimensional surface system of axes is as shown in table 1 below.
Table 1 coordinate figure
Consider the reality factor such as processing technology and Fabricating machinery, on the basis of the coordinate figure shown in table 1, matching is carried out to the wheel curve formed by coordinate figure, be more suitable for processing and manufacturing to make the wheel profile after matching.
Wheel after matching design as shown in Figure 1, to comprise outside the wheel rim 1, wheel rim root 2, tread 3 and the tread that connect successively 4.
Tread 3 comprises the first tread arc section, tread linear portion and the second tread arc section that head and the tail connect successively.One end of first tread arc section is connected with wheel rim root, and one end of the second tread arc section is connected with outside tread, and the first tread arc section, tread linear portion and the second tread arc section all mate mutually with the profile of track.
Wherein, the radius R 6 of the first tread arc section is 538.31mm, and the radius R 7 of the second tread arc section is 91.07mm, and tread linear portion is a horizontal linear, and the length L1 of tread linear portion is 9.6mm.
Wheel rim root 2 comprises the first root arc section and the second root arc section that connect successively from beginning to end, and one end of the first root arc section is connected with wheel rim, and one end of the second root arc section is connected with one end of the first tread arc section.
Wherein, the radius R 4 of the first root arc section is 17.19mm, and the radius R 5 of the second root arc section is 142.98mm.
Wheel rim 1 comprises wheel rim linear portion, the first wheel rim arc section, the second wheel rim arc section and the third round edge arc section that head and the tail connect successively, and third round edge arc section is connected with the other end of the first root arc section.
Wherein, the radius R 1 of the first wheel rim arc section is 24mm, and the radius R 2 of the second wheel rim arc section is 12mm, and the radius R 3 of third round edge arc section is 18mm.
Outside tread 4 comprise interconnective first outside linear portion outside linear portion and second, and outside first, one end of linear portion is connected with one end of the second tread arc section.
Wherein, outside first, the horizontal length L2 of linear portion is 29.76mm, and outside first, the horizontal length L2 of linear portion and the ratio of vertical length L3 are 16:1, and outside second, the horizontal length L4 of linear portion is 5mm, vertically length L5 is 5mm.
Wheel rim root 2 in above-mentioned wheel and the shape of tread 3 can realize the exact matching with the profile of track, when the cross travel of wheel is less, the wheel footpath difference of wheel is less, the stability that wheel keeps higher on rectilinear orbit can be made, when the cross travel of wheel is larger, the wheel footpath difference of wheel is comparatively large, to improve by mechanical property during curve track, reduce abrasion, make wheel have good contact fatigue property.
Although the foregoing describe detailed description of the invention of the present utility model, it will be understood by those of skill in the art that this is only casehistory, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection domain of the present utility model.
Claims (8)
1. for a wheel for railway vehicle, comprise outside the wheel rim, wheel rim root, tread and the tread that connect successively, it is characterized in that, described tread comprises the first tread arc section, tread linear portion and the second tread arc section that head and the tail connect successively;
One end of described first tread arc section is connected with described wheel rim root, and one end of described second tread arc section is connected with outside described tread, and described first tread arc section, tread linear portion and the second tread arc section all match with the profile of track.
2. the wheel for railway vehicle according to claim 1, is characterized in that, the radius of described first tread arc section is 538.31mm;
The radius of described second tread arc section is 91.07mm;
Described tread linear portion is a horizontal linear, and the length of described tread linear portion is 9.6mm.
3. the wheel for railway vehicle according to claim 1, it is characterized in that, described wheel rim root comprises the first root arc section and the second root arc section that connect successively from beginning to end, one end of described first root arc section is connected with described wheel rim, one end of described second root arc section is connected with one end of described first tread arc section, and described first root arc section and the second root arc section all match with the profile of track.
4. the wheel for railway vehicle according to claim 3, is characterized in that, the radius of described first root arc section is 17.19mm, and the radius of described second root arc section is 142.98mm.
5. the wheel for railway vehicle according to claim 3, it is characterized in that, described wheel rim comprises wheel rim linear portion, the first wheel rim arc section, the second wheel rim arc section and the third round edge arc section that head and the tail connect successively, and described third round edge arc section is connected with the other end of described first root arc section.
6. the wheel for railway vehicle according to claim 5, is characterized in that, the radius of described first wheel rim arc section is 24mm;
The radius of described second wheel rim arc section is 12mm;
The radius of described third round edge arc section is 18mm.
7. the wheel for railway vehicle according to any one of claim 1-6, it is characterized in that, linear portion outside linear portion and second outside comprising interconnective first outside described tread, and outside described first, one end of linear portion is connected with one end of described second tread arc section.
8. the wheel for railway vehicle according to claim 7, is characterized in that, outside described first, the horizontal length of linear portion is 29.76mm, and outside described first, the horizontal length of linear portion and the ratio of vertical length are 16:1;
Outside described second, the horizontal length of linear portion is 5mm, vertically length is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482207.7U CN204870335U (en) | 2015-07-06 | 2015-07-06 | A wheel for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482207.7U CN204870335U (en) | 2015-07-06 | 2015-07-06 | A wheel for railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204870335U true CN204870335U (en) | 2015-12-16 |
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ID=54814754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520482207.7U Active CN204870335U (en) | 2015-07-06 | 2015-07-06 | A wheel for railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204870335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314020A (en) * | 2015-07-06 | 2017-01-11 | 上海申通地铁集团有限公司 | Wheel for railway vehicle |
| CN112622517A (en) * | 2020-12-30 | 2021-04-09 | 安徽佳通乘用子午线轮胎有限公司 | Rail tire design method and rail tire |
-
2015
- 2015-07-06 CN CN201520482207.7U patent/CN204870335U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314020A (en) * | 2015-07-06 | 2017-01-11 | 上海申通地铁集团有限公司 | Wheel for railway vehicle |
| CN112622517A (en) * | 2020-12-30 | 2021-04-09 | 安徽佳通乘用子午线轮胎有限公司 | Rail tire design method and rail tire |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |