CN113464625B - Hollow shaft structure for driving wheel set of railway vehicle - Google Patents
Hollow shaft structure for driving wheel set of railway vehicle Download PDFInfo
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- CN113464625B CN113464625B CN202110751792.6A CN202110751792A CN113464625B CN 113464625 B CN113464625 B CN 113464625B CN 202110751792 A CN202110751792 A CN 202110751792A CN 113464625 B CN113464625 B CN 113464625B
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- hollow shaft
- inner diameter
- hollow
- mounting groove
- axle
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- 238000010276 construction Methods 0.000 claims 2
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000003137 locomotive effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Abstract
The invention relates to the technical field of running of rail locomotives; the hollow shaft structure is sleeved outside an axle and comprises a first hollow shaft and a second hollow shaft which is connected with one end of the first hollow shaft and is coaxially arranged. The invention effectively realizes the positioning of the driving gear box and the positioning of the rack gear, and realizes the conversion of the traction modes of the adhesive circuit and the rack circuit through the connection with the clutch.
Description
Technical Field
The invention relates to the technical field of running of rail locomotives, in particular to a hollow shaft structure for driving wheel sets of rail locomotives.
Background
At present, the foreign toothed rail line has a pure toothed rail line and a mixed line of toothed rail and common wheel rail, the bogie of the train applied to the pure toothed rail line is a toothed rail bogie, the bogie of the train applying the mixed line is a toothed rail bogie and a common wheel rail bogie, and the foreign toothed rail train applied to the mixed line can only meet the requirements of 35 per mill of common wheel rail line and 120 per mill of toothed rail line, and the train adopts a mode of combining and arranging the toothed rail bogie and the common wheel rail bogie.
With the development of rail traffic, the novel rack receives wide attention nationwide due to the characteristics of strong climbing capability, large traction braking force, adaptation to large gradient, large-traffic rail transportation, high riding comfort and the like, is very suitable for rail traffic in mountainous areas, and lacks a structure matched with a rack bogie with the running requirement on the large gradient of 250 per mill.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hollow shaft structure for driving a wheel set of a railway vehicle; the positioning of the driving gear box and the positioning of the rack gear are effectively realized, and the traction mode conversion of the adhesive circuit and the rack circuit is realized through the connection with the clutch.
The invention solves the technical problems by adopting the following solution:
a hollow shaft structure for driving a wheel set of a railway vehicle is sleeved outside an axle and comprises a hollow shaft I and a hollow shaft II which is connected with one end of the hollow shaft I and is coaxially arranged.
Firstly, sleeving an inner hollow shaft II of a first hollow shaft on the outer side of an axle through two sets of bearing mounting sleeves; secondly, connecting the hollow shaft I with the hollow shaft II; then the driving gear box is arranged on the outer diameter of the first hollow shaft through a bearing, and the toothed rail gear is in interference fit with the outer side of the second hollow shaft; the outer ring of the clutch and the brake wheel are fixedly arranged at the end part of the hollow shaft II, which is far away from the hollow shaft I, through bolts. Through the connection of this structure, realized the location of drive gear box, rack gear's location to through the connection with the clutch, realized the conversion of the traction mode of adhesion circuit and rack circuit.
In some possible embodiments, the end of the hollow shaft I, which is close to the hollow shaft II, is provided with an end face tooth I, and the side of the hollow shaft II, which is close to the hollow shaft I, is provided with an end face tooth II meshed with the end face tooth I.
In some possible embodiments, in order to effectively realize the connection between the hollow shaft II and the axle, the hollow shaft II comprises a hollow shaft II A connected with the hollow shaft I and a hollow shaft II B connected with one end of the hollow shaft II A far away from the hollow shaft I, and the inner side surface of the hollow shaft II B is provided with an intermediate bearing mounting groove.
When the hollow shaft II is installed, the middle bearing is sleeved on the outer side of the axle, and the middle bearing is installed in the middle bearing installation groove, so that the connection between the hollow shaft II and the axle is realized.
In some possible embodiments, the inner diameter of the hollow shaft two a is identical to the inner diameter of the hollow shaft one; the inner diameter of the middle bearing mounting groove is larger than that of the hollow shaft II A.
In some possible embodiments, for the effective connection of the brake wheel, the clutch and the hollow shaft two, a mounting flange is provided on the side of the hollow shaft two B remote from the hollow shaft two A, which is coaxial with the hollow shaft two B.
In some possible embodiments, the inner diameter of the mounting flange is identical to the inner diameter of the hollow shaft B, and the outer diameter of the mounting flange is larger than the outer diameter of the hollow shaft B.
In some possible embodiments, in order to effectively connect hollow shaft two a to hollow shaft one, hollow shaft two a is connected to hollow shaft one by a screw.
In some possible embodiments, the hollow shaft I comprises a hollow shaft I A connected with the hollow shaft II A, and a hollow shaft I B connected with one end of the hollow shaft I A far away from the hollow shaft II; the inner diameter of the hollow shaft I A is identical with the inner diameter of the hollow shaft II A.
In some possible embodiments, the inner side surface of the hollow shaft B is provided with a bearing mounting groove; the inner diameter of the bearing mounting groove is larger than that of the hollow shaft II A.
The bearing is sleeved on the outer side of the axle and is positioned in the bearing mounting groove, so that the connection between the hollow shaft I and the axle is realized.
In some possible embodiments, a gear box mounting groove is arranged on the outer side of the hollow shaft A; the outer side of the hollow shaft II A is provided with a circular boss.
And a conical bearing is arranged in the gear mounting groove, and the outer ring of the conical bearing is connected with the drive gear box, so that the transmission connection between the hollow shaft I and the drive gear box is realized.
Compared with the prior art, the invention has the beneficial effects that:
the positioning of the driving gear box and the positioning of the rack gear are effectively realized through the connection of the hollow shaft I and the hollow shaft II;
The hollow shaft II is connected with the clutch, so that the traction mode of the adhesive circuit and the rack circuit is changed.
According to the invention, the hollow shaft I and the hollow shaft II are connected into a whole through the matching of the end face teeth of the end faces of the hollow shaft I and the hollow shaft II; the stable structure and the torque transmission are effectively realized;
The invention has simple structure and strong practicability.
Drawings
FIG.1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a hollow mandrel I of the present invention;
FIG. 3 is a schematic view of a hollow mandrel II according to the present invention;
FIG. 4 is a schematic view of the use state of the present invention;
Wherein: 1. a hollow shaft I; 11. hollow shaft A; 111. a gear box mounting groove; 12. hollow shaft I; 2. a hollow shaft II; 21. hollow shaft II A; 22. hollow shaft B; 221. a circular boss; 222. a mounting flange; 3. an axle; 4. a clutch; 5. a brake wheel; 6. a rack gear; 7. a drive gear box; 8. a conical bearing; 9. and an intermediate bearing.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Reference to "first," "second," and similar terms herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
In the implementation of the present application, "and/or" describes the association relationship of the association object, which means that there may be three relationships, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone.
In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more. For example, a plurality of positioning posts refers to two or more positioning posts.
The invention is further described below with reference to the drawings and examples.
The invention is realized by the following technical scheme, as shown in figures 1-4,
The hollow shaft structure for driving the wheel set of the railway vehicle is sleeved outside the axle 3 and comprises a hollow shaft I1 for installing a driving gear box 7 and a hollow shaft II 2 which is connected with one end of the hollow shaft I1 and is coaxially arranged; the outer side of the hollow shaft II 2 is provided with a rack gear 6, and one end of the hollow shaft II 2 far away from the hollow shaft I1 is connected with a brake wheel 5 and a clutch 4; wherein clutch 4 suit is in the outside of axletree 3, and brake wheel 5 suit is in the outside of clutch 4 and with clutch 4 transmission connection.
As shown in fig. 4, first, a hollow shaft 2 in a hollow shaft 1 is sleeved outside an axle 3 through two sets of bearing mounting sleeves; secondly, connecting the hollow shaft I1 with the hollow shaft II 2; then the driving gear box 7 is arranged on the outer diameter of the hollow shaft I1 through a bearing, and the rack gear 6 is in interference fit with the outer side of the hollow shaft II 2; the outer ring of the clutch 4 and the brake wheel 5 are fixedly arranged at the end part of the hollow shaft 2, which is far away from the hollow shaft 1, through bolts.
By the connection of this structure, the positioning of the drive gear box 7, the positioning of the rack gear 6 are realized, and by the connection with the clutch 4, the conversion of the traction modes of the adhesive line and the rack line is realized.
In some possible embodiments, the end of the hollow shaft 1 near the hollow shaft 2 is provided with a first end face tooth, and the side of the hollow shaft 2 near the hollow shaft 1 is provided with a second end face tooth meshed with the first end face tooth. A step of
The hollow shaft I1 and the hollow shaft II are connected into a whole by arranging end face teeth which are meshed with each other on two end faces which are close to each other; the stable structure and the torque transmission are effectively realized;
In some possible embodiments, in order to effectively connect the hollow shaft 2 with the axle 3, the hollow shaft 2 includes a hollow shaft two a21 connected with the hollow shaft 1, and a hollow shaft two B22 connected with an end of the hollow shaft two a21 away from the hollow shaft 1, the inner side surface of the hollow shaft two B22 is provided with an intermediate bearing 9 mounting groove, and the intermediate bearing is coaxially arranged with the axle 3.
When the hollow shaft II 2 is installed, the middle bearing 9 is sleeved on the outer side of the axle 3, and the middle bearing 9 is installed in the installation groove of the middle bearing 9, so that the connection between the hollow shaft II 2 and the axle 3 is realized.
In some possible embodiments, the inner diameter of the hollow shaft two a21 is identical to the inner diameter of the hollow shaft one 1; the inner diameter of the installation groove of the intermediate bearing 9 is larger than that of the hollow shaft II A21.
Preferably, the mounting groove of the intermediate bearing 9 is annular, is arranged on the inner side surface of the hollow shaft II A21, and the vehicle shaft 3 forms an annular cavity for mounting the intermediate bearing 9.
In some possible embodiments, as shown in fig. 1, 3 and 4, in order to effectively connect the brake wheel 5, the clutch 4 and the hollow shaft two 2, a mounting flange 222 is provided on the side of the hollow shaft two B22 facing away from the hollow shaft two a21, and the mounting flange 222 is coaxial with the hollow shaft two B22.
The clutch 4 is sleeved on the axle 3 and is positioned on one side of the hollow shaft II 2 far away from the hollow shaft I1, and the clutch 4 is connected with the mounting flange 222 through bolts;
The brake wheel 5 is in transmission connection with the clutch 4 and sleeved on the outer side of the clutch 4, and is connected with the mounting flange 222 through bolts;
In some possible embodiments, as shown in fig. 3, the inner diameter of the mounting flange 222 is identical to the inner diameter of the hollow shaft B22, and the outer diameter of the mounting flange 222 is larger than the outer diameter of the hollow shaft B22.
In some possible embodiments, as shown in fig. 1, in order to effectively connect the hollow shaft two a21 to the hollow shaft one 1, the hollow shaft two a21 is connected to the hollow shaft one 1 by a bolt.
In some possible embodiments, as shown in fig. 1-4, to accommodate the connection with axle 3, the hollow axle 1 includes a hollow axle a11 connected to a hollow axle B21, and a hollow axle B12 connected to an end of the hollow axle a11 remote from the hollow axle B2; the inner diameter of the hollow shaft A11 is identical with the inner diameter of the hollow shaft A21.
In some possible embodiments, as shown in fig. 2 and 3, a bearing mounting groove is formed on the inner side surface of the hollow shaft B12; the inner diameter of the bearing mounting groove is larger than that of the hollow shaft II A21.
Preferably, the axle 3 mounting groove is arranged on one side of the hollow shaft A12 far away from the hollow shaft A11, the axle 3 mounting groove is in a ring shape, an annular mounting chamber is formed with the axle 3, and the axle 3 mounting groove and the axle 3 are coaxially arranged.
The bearing is sleeved on the outer side of the axle 3 and is positioned in the bearing mounting groove, so that the hollow shaft 1 is connected with the axle 3.
In some possible embodiments, the outer side of the hollow shaft a11 is provided with a gear box mounting groove 111; an annular boss 221 is arranged on the outer side of the hollow shaft II A21.
A conical bearing 8 is arranged in the gear mounting groove, and the outer ring of the conical bearing 8 is connected with the drive gear box 7, so that the transmission connection between the hollow shaft 1 and the drive gear box 7 is realized.
Preferably, the gear mounting grooves are annular grooves, are two groups of grooves and are arranged in parallel, and are coaxially arranged with the axle 3.
The foregoing has outlined rather broadly the embodiments of the application in order that the detailed description of the principles and embodiments of the application may be better understood, and in order that the present application may be better understood; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (3)
1. A hollow shaft structure for rail vehicle wheel pair drive, suit is in the axletree outside, its characterized in that: the device comprises a hollow shaft I and a hollow shaft II which is connected with one end of the hollow shaft I and is coaxially arranged; an end face tooth I is arranged at one end, close to the hollow shaft II, of the hollow shaft I, and an end face tooth II meshed with the end face tooth I is arranged at one side, close to the hollow shaft I, of the hollow shaft II; the hollow shaft II comprises a hollow shaft II A connected with the hollow shaft I and a hollow shaft II B connected with one end, far away from the hollow shaft I, of the hollow shaft II A, and an intermediate bearing mounting groove is formed in the inner side surface of the hollow shaft II B; the inner diameter of the hollow shaft II A is consistent with that of the hollow shaft I; the inner diameter of the middle bearing mounting groove is larger than the inner diameter of the hollow shaft II A; one side of the hollow shaft II B, which is far away from the hollow shaft II A, is provided with a mounting flange, and the mounting flange is coaxial with the hollow shaft II B; the inner diameter of the mounting flange is consistent with the inner diameter of the hollow shaft B, and the outer diameter of the mounting flange is larger than the outer diameter of the hollow shaft B; the first hollow shaft comprises a first hollow shaft A connected with a second hollow shaft A and a first hollow shaft B connected with one end of the first hollow shaft A far away from the second hollow shaft; the inner diameter of the hollow shaft I A is consistent with the inner diameter of the hollow shaft II A; the inner side surface of the hollow shaft I B is provided with a bearing mounting groove; the inner diameter of the bearing mounting groove is larger than that of the hollow shaft II A.
2. A hollow axle construction for a rail vehicle wheel set drive according to claim 1, characterized in that: the hollow shaft II A is connected with the hollow shaft I through bolts.
3. A hollow axle construction for a rail vehicle wheel set drive according to claim 1, characterized in that: the outer side of the hollow shaft A is provided with a gear box mounting groove; the outer side of the hollow shaft II A is provided with a circular boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110751792.6A CN113464625B (en) | 2021-07-02 | Hollow shaft structure for driving wheel set of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110751792.6A CN113464625B (en) | 2021-07-02 | Hollow shaft structure for driving wheel set of railway vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113464625A CN113464625A (en) | 2021-10-01 |
| CN113464625B true CN113464625B (en) | 2024-06-28 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216279284U (en) * | 2021-07-02 | 2022-04-12 | 中车资阳机车有限公司 | Hollow shaft structure for driving wheel pair of rail vehicle |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216279284U (en) * | 2021-07-02 | 2022-04-12 | 中车资阳机车有限公司 | Hollow shaft structure for driving wheel pair of rail vehicle |
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