CN213534678U - Rail vehicle, driving device and gear box input shaft end mounting structure thereof - Google Patents
Rail vehicle, driving device and gear box input shaft end mounting structure thereof Download PDFInfo
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- CN213534678U CN213534678U CN202022695868.1U CN202022695868U CN213534678U CN 213534678 U CN213534678 U CN 213534678U CN 202022695868 U CN202022695868 U CN 202022695868U CN 213534678 U CN213534678 U CN 213534678U
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- input shaft
- coupling
- coupling half
- mounting structure
- gearbox
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Abstract
The utility model discloses a rail vehicle, drive arrangement and gear box input shaft end mounting structure thereof, this gear box input shaft end mounting structure include the output shaft of motor and the input shaft of gear box side, the input shaft with the output shaft passes through coupling transmission and is connected, the coupling includes first half coupling and second half coupling, first half coupling and second half coupling fixed connection, first half coupling with the output shaft transmission is connected, second half coupling with the input shaft transmission is connected; said input shaft end facing said second coupling half has first face teeth and said second coupling half end facing said input shaft has second face teeth, said first face teeth being in meshing engagement with said second face teeth. The mounting structure for the input shaft end of the gear box can reduce the overall axial dimension of the driving device so as to adapt to the limited mounting space on the framework.
Description
Technical Field
The utility model relates to a rail vehicle technical field especially relates to a drive arrangement and gear box input axle head mounting structure thereof, still relates to a rail vehicle including above-mentioned drive arrangement.
Background
The driving device of the railway vehicle is used for providing driving force for the wheel shafts of the wheel pairs so as to drive the railway vehicle to move forwards.
And a traction motor of the driving device is in transmission connection with the gear box and transmits power to the wheel pair of the railway vehicle through the gear box. In the design of the bogie, the size of a framework in the axial direction of an axle is reduced due to the built-in axle box, so that the installation space of a driving device is limited, and the axial size of the driving device is larger and the installation space is insufficient due to the fact that a traction motor cannot be infinitely reduced due to the limitation of the rotating speed and the output torque of the traction motor.
In view of this, how to improve the structure of the existing driving device to overcome the problem of small axial installation size of the driving device is a technical problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a drive arrangement and gear box input shaft end mounting structure thereof, this gear box input shaft end mounting structure can reduce the holistic axial dimensions of drive arrangement to limited installation space on the adaptation framework.
The utility model provides a further purpose provides a rail vehicle including above-mentioned drive arrangement.
In order to solve the technical problem, the utility model provides a gear box input shaft end mounting structure for drive arrangement, including the output shaft of motor and the input shaft of gear box side, the input shaft with the output shaft passes through coupling transmission and is connected, the coupling includes first half coupling and second half coupling, first half coupling and second half coupling fixed connection, first half coupling with the output shaft transmission is connected, second half coupling with the input shaft transmission is connected; said input shaft end facing said second coupling half has first face teeth and said second coupling half end facing said input shaft has second face teeth, said first face teeth being in meshing engagement with said second face teeth.
The gearbox input shaft end mounting structure as described above, said input shaft and said second coupling half further being fixedly connected by a fastener to restrict the relative positions of said input shaft and said second coupling half in the axial direction.
The input shaft end mounting structure for a gearbox as described above, said input shaft being a hollow shaft having a first through hole, said second coupling half having a second through hole concentric with said first through hole, said first through hole and said second through hole each having an internal thread, said fastening member having an external thread fitted with said internal thread, said input shaft being fixedly connected to said second coupling half by said fastening member passing through said first through hole and said second through hole in this order.
In the above-described input shaft end mounting structure for a gearbox, the first coupling half has a receptacle into which the output shaft is fixedly inserted.
According to the mounting structure for the input shaft end of the gearbox, the jack is a conical hole, and the hole diameter of the jack is gradually reduced from the output shaft to the input shaft along the axial direction.
The gearbox input shaft end mounting structure as described above, said coupling being a rigid coupling.
The input shaft end mounting structure for a gearbox as described above, said first half-coupling having a first disk portion extending radially outwardly from its body, said second half-coupling having a second disk portion extending radially outwardly from its body, said first disk portion and said second disk portion being fixedly connected by a fastening member.
The utility model also provides a drive arrangement, including motor and gear box, the output of motor with the input of gear box passes through any one of the aforesaid gear box input shaft end mounting structure connect.
The utility model also provides a rail vehicle, including the framework with install in wheel pair on the framework, still including being used for the drive arrangement of wheel pair, drive arrangement is the aforesaid drive arrangement.
The output shaft and the input shaft are arranged in parallel to the axial direction of the wheel axle of the wheel pair.
The utility model provides a gear box input shaft end mounting structure for drive arrangement, the input shaft of gear box side passes through the shaft coupling and is connected with the output shaft transmission of motor, and wherein, the input shaft of gear box side is rather than half shaft coupling of second that corresponds the side and is realized the transmission through the mode of end face tooth meshing and connect, so, can reduce the holistic axial dimension of drive arrangement, has reduced the space that drive arrangement occupy.
The utility model provides a when rail vehicle adopted above-mentioned drive arrangement, because the holistic axial dimensions of drive arrangement reduces, so can adapt to the installation space with the built-in framework of axle box, adaptability is wide.
Drawings
Fig. 1 is a schematic cross-sectional view of a specific embodiment of a mounting structure for an input shaft end of a gearbox according to the present invention.
Description of reference numerals:
an output shaft 10;
an input shaft 20, first end face teeth 21, a first through hole 22;
a fastening bolt 40 and a fastening element 50.
Detailed Description
The core of the utility model is to provide a drive arrangement and gear box input shaft end mounting structure thereof, this gear box input shaft end mounting structure can reduce the holistic axial dimensions of drive arrangement to limited installation space on the adaptation framework.
The utility model provides a another core provides a rail vehicle including above-mentioned drive arrangement.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
For ease of understanding and clarity of description, the following description is provided in conjunction with a railway vehicle, a drive unit and its gearbox input shaft end mounting arrangement, and the advantageous effects will not be repeated.
In this embodiment, the rail vehicle comprises a frame, a wheel set mounted to the frame, and a drive arrangement for powering the wheel set to propel the vehicle.
The structure of the frame and the wheel pair can be referred to the existing related design, and the driving device provided by the embodiment can be used for different types of railway vehicles, and is not limited here.
In this embodiment, the driving device includes a motor and a gear box, and the motor is in transmission connection with the gear box and transmits power to the wheel pair through the gear box. The motor and the output shaft and the input shaft of the gearbox are arranged parallel to the axial direction of the wheel axle of the wheel set, also understood as the position where the motor and the output shaft are located between two wheels of the wheel set.
With the development of rail vehicles, there is a need to install an axle box inside, i.e. the axle box is changed from being located outside the wheel to being located inside the wheel, so that the axial installation space of the driving device on the frame is reduced.
The driving device provided by the embodiment can reduce the whole axial size, saves the occupied space and adapts to different structures of the bogie of the railway vehicle.
In the embodiment, the mounting structure of the input shaft end of the gearbox of the driving device is mainly improved, and other structural parts of the driving device can still refer to the existing design and are not repeatedly described.
Referring to fig. 1, fig. 1 is a schematic cross-sectional view of an embodiment of an input shaft end mounting structure of a gearbox according to the present invention.
As shown in the figure, in this embodiment, the gearbox input shaft end mounting structure comprises an output shaft 10 of a motor and an input shaft 20 on the gearbox side, the input shaft 20 is in transmission connection with the output shaft 10 through a coupling 30, the coupling 30 comprises a first half coupling 31 and a second half coupling 32, the first half coupling 31 is fixedly connected with the second half coupling 32, the first half coupling 31 is in transmission connection with the output shaft 10, and the second half coupling 32 is in transmission connection with the input shaft 20; the end of the input shaft 20 facing the second coupling half has a first end face tooth 21, the end of the second coupling half 32 facing the input shaft 20 has a second end face tooth 321, the first end face tooth 21 mating with the second end face tooth 321.
In the input shaft end mounting structure of the gear box, the input shaft 20 on the gear box side is in transmission connection with the second half coupling 32 of the coupling 30 in a face tooth meshing mode, so that the connecting structure of the input shaft 20 and the coupling 30 is simplified, the axial size of the connecting position is reduced, the overall axial size of a driving device is reduced, the occupied space of the driving device is small, and the driving device can adapt to different mounting spaces.
In a specific scheme, the input shaft 20 and the second coupling half 32 are fixedly connected through a fastener so as to limit the relative positions of the input shaft and the second coupling half in the axial direction, and axial movement is prevented to influence the transmission effect.
Specifically, the input shaft 20 is a hollow shaft and has a first through hole 22, the second coupling half 32 has a second through hole 322 concentric with the first through hole 22, the first through hole 22 and the second through hole 322 both have an internal thread structure, the fastening member is specifically a fastening bolt 40 with an external thread, and during actual assembly, the fastening bolt 40 sequentially penetrates through the input shaft 20 and the second coupling half 32 to fixedly connect the input shaft 20 and the second coupling half 32 through the matching of the internal thread and the external thread.
As shown in the drawings, in this way, when the input shaft 20 and the second coupling half 32 are fastened, the fastening bolt 40 is installed from the side of the input shaft 20 away from the coupling 30, that is, the wheel side, and thus, it is avoided to add a related structure for fastening both at the joint of the input shaft 20 and the second coupling half 32, so that the axial dimension of the driving device is minimized as much as possible, and the fastening manner also facilitates the assembly of the input shaft 20 and the second coupling half 32.
In a specific embodiment, the first coupling half 31 has a socket 311, and the output shaft 10 of the motor is directly fixed and inserted into the socket 311.
Specifically, the insertion hole 311 is in the form of a tapered hole, and the hole diameter of the insertion hole 311 gradually decreases from the output shaft 10 to the input shaft 20 along the axial direction, so that after the output shaft 10 of the motor is fixedly inserted and matched with the first half coupling 31, the fastening effect of the output shaft 10 and the first half coupling 31 is good, the output shaft 10 is not easy to be separated from the first half coupling 31, and the reliability is high.
In a specific scheme, the coupling 30 is a rigid coupling, so that a motor bearing is not arranged in the motor to support the output shaft 10 of the motor, the output shaft 10 can be supported by the bearing in the gear box, the structure of the motor can be simplified, and the manufacturing cost can be reduced.
In a concrete aspect, the first coupling half 31 has a first disk portion 312 extending radially outward from its body, the second coupling half 32 has a second disk portion 323 extending radially outward from its body, and the first disk portion 312 and the second disk portion 323 are fixedly connected by the fastening member 50. The connection mode is simple and reliable.
It is right above the utility model provides a rail vehicle, drive arrangement and gear box input shaft end mounting structure all introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A gearbox input shaft end mounting structure for a drive device including an output shaft of a motor and a gearbox-side input shaft, characterized in that said input shaft is drivingly connected to said output shaft by a coupling comprising a first coupling half and a second coupling half, said first coupling half and said second coupling half being fixedly connected, said first coupling half being drivingly connected to said output shaft, said second coupling half being drivingly connected to said input shaft; said input shaft end facing said second coupling half has first face teeth and said second coupling half end facing said input shaft has second face teeth, said first face teeth being in meshing engagement with said second face teeth.
2. A gearbox input shaft end mounting structure as set forth in claim 1, wherein said input shaft and said second coupling half are further fixedly connected by a fastener to limit the relative positions of said input shaft and said second coupling half in the axial direction.
3. A gearbox input shaft end mounting structure as set forth in claim 2, wherein said input shaft is a hollow shaft having a first through-hole, said second coupling half has a second through-hole concentric with said first through-hole, said first through-hole and said second through-hole each have an internal thread, said fastener has an external thread mating with said internal thread, said input shaft and said second coupling half are fixedly connected by said fastener passing through said first through-hole and said second through-hole in this order.
4. A gearbox input shaft end mounting structure as set forth in claim 1, wherein said first coupling half has a receptacle into which said output shaft is fixedly inserted.
5. A gearbox input shaft end mounting structure as set forth in claim 4, wherein said receptacle is a tapered bore, and the bore diameter of said receptacle decreases in the axial direction from said output shaft to said input shaft.
6. A gearbox input shaft end mounting structure as set forth in any one of claims 1-5, wherein said coupling is a rigid coupling.
7. A gearbox input shaft end mounting structure as set forth in claim 6 wherein said first coupling half has a first disk portion extending radially outwardly from its body and said second coupling half has a second disk portion extending radially outwardly from its body, said first disk portion and said second disk portion being fixedly connected by a fastening member.
8. A drive arrangement comprising a motor and a gearbox, wherein an output of the motor and an input of the gearbox are connected by a gearbox input shaft end mounting arrangement as claimed in any one of claims 1 to 7.
9. Railway vehicle comprising a frame and a wheel set mounted on the frame, and further comprising a drive for driving the wheel set, characterized in that the drive is a drive according to claim 8.
10. The rail vehicle of claim 9, wherein the output shaft and the input shaft are disposed parallel to an axial direction of an axle of the wheel pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022695868.1U CN213534678U (en) | 2020-11-19 | 2020-11-19 | Rail vehicle, driving device and gear box input shaft end mounting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022695868.1U CN213534678U (en) | 2020-11-19 | 2020-11-19 | Rail vehicle, driving device and gear box input shaft end mounting structure thereof |
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| Publication Number | Publication Date |
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| CN213534678U true CN213534678U (en) | 2021-06-25 |
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| CN202022695868.1U Active CN213534678U (en) | 2020-11-19 | 2020-11-19 | Rail vehicle, driving device and gear box input shaft end mounting structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789739A (en) * | 2022-04-14 | 2022-07-26 | 中车青岛四方机车车辆股份有限公司 | Transmission mechanism, bogie and rail vehicle |
-
2020
- 2020-11-19 CN CN202022695868.1U patent/CN213534678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789739A (en) * | 2022-04-14 | 2022-07-26 | 中车青岛四方机车车辆股份有限公司 | Transmission mechanism, bogie and rail vehicle |
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