CN213425955U - Integrated gear box traction motor and railway vehicle - Google Patents

Abstract

The utility model discloses an integral type gear box traction motor and rail vehicle, integral type gear box traction motor includes traction motor (1) and gear box (2), power output shaft (11) of traction motor (1) with power input shaft (23) transmission connection of gear box (2), its characterized in that, traction motor (1) and gear box (2) are connected through flange (3) and bolt; the power output shaft (11) of the traction motor (1) is connected with the power input shaft (23) of the gear box (2) through an input end coupling (4), and the input end coupling (4) is arranged in the traction motor (1) and a flange (3) of the gear box (2). The device is compact in structure, can reduce the installation space and simultaneously reduces the unsprung mass.

Description

Integrated gear box traction motor and railway vehicle

Technical Field

The utility model relates to a rail vehicle technical field especially relates to rail vehicle's integral type gear box traction motor. The utility model discloses still relate to and be equipped with integral type gear box traction motor's rail vehicle.

Background

In the design process of the self-adaptive bogie, the problems of small installation space of a driving device, large unsprung mass in an existing gear box axle-suspension installation mode and the like exist.

For example, CN 204623452U discloses an integrated traction motor and gearbox transmission system, which comprises a gearbox and a traction motor, wherein the traction motor is directly mounted on the gearbox, and the connection mode of the traction motor and the gearbox is IMB5 "GB/T997 + 2008", and the traction motor and the gearbox are connected by a rigid coupling.

The structure is only suitable for the low-speed bogie, and because the self-adaptive bogie has high project speed level and the motor size and weight are larger than those of the low-speed bogie, if the integrated traction motor and gear box transmission system is adopted, the space on the bogie cannot meet the installation requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integral type gear box traction motor. The device is compact in structure, can reduce the installation space and simultaneously reduces the unsprung mass.

Another object of the utility model is to provide a rail vehicle is equipped with integral type gear box traction motor.

In order to achieve the purpose, the utility model provides an integrated gearbox traction motor, which comprises a traction motor and a gearbox, wherein a power output shaft of the traction motor is in transmission connection with a power input shaft of the gearbox, and the traction motor is connected with the gearbox through a flange and a bolt; the power output shaft of the traction motor is connected with the power input shaft of the gear box by adopting an input end coupling, and the input end coupling is arranged in the flanges of the traction motor and the gear box.

Preferably, the power output end of the traction motor is not provided with a bearing, and the bearing is shared with the power input shaft of the gear box.

Preferably, the motor side of the input end coupling is in taper interference fit with the power output shaft of the traction motor.

Preferably, the gearbox side of said input end coupling is in face tooth engagement with the power input shaft of said gearbox.

Preferably, the gearbox and the traction motor are integrally hung on the bogie, so that the weight of the whole driving device is changed into the inter-spring mass.

Preferably, the power transmission path of the gear box is in an L shape; the vertical part of the gear box is provided with a power output end which is used for penetrating through an axle, and the power output end is provided with an output end coupling which is used for being connected with the axle; the transverse part of the gear box is provided with a power input end, and a power input shaft of the power input end is parallel to the axle.

Preferably, the traction motor is located in a corner region of the vertical portion and the lateral portion of the gear box, and a power output shaft of the traction motor is parallel to the axle.

Preferably, the power input end of the gear box is provided with a labyrinth seal structure.

Preferably, the gearbox is a two-stage transmission herringbone tooth structure.

In order to achieve the above-mentioned another object, the present invention provides a rail vehicle, including a vehicle body, a bogie and a power system provided on the bogie, wherein the power system is provided with the integrated gearbox traction motor according to any one of the above-mentioned aspects.

The utility model provides an integral type gear box traction motor, be monolithic structure with traction motor and gear box design, its traction motor passes through the flange with the gear box bolt connection, traction motor's power output shaft adopts the input shaft coupling to be connected with the power input shaft of gear box, and inside whole input shaft coupling is located gear box and traction motor's flange, thereby reach the purpose of saving space, can satisfy the great traction motor's of volume and weight installation requirement, after the improvement, the more conventional structure in traction motor transverse space reduces 30%, power density is big, the problem that quality problems and drive arrangement installation space are little under having solved self-adaptation steering spring, make the bogie can adapt to high-speed operating condition.

The utility model provides a rail vehicle is equipped with integral type gear box traction motor, because integral type gear box traction motor has above-mentioned technological effect, then the rail vehicle who is equipped with this integral type gear box traction motor should also have corresponding technological effect.

Drawings

Fig. 1 is a schematic structural diagram of an integrated gear box traction motor disclosed in an embodiment of the present invention.

In the figure:

1. traction motor 11, power output shaft 2, gear box 21, output end coupling 22, shaft sleeve end face teeth 23, power input shaft 24, labyrinth seal structure 3, flange 4, input end coupling 5 and bearing

Detailed Description

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.

In this document, terms such as "upper, lower, left, right" and the like are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, they are not to be construed as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an integrated gearbox traction motor according to an embodiment of the present invention.

As shown in the drawings, in a specific embodiment, the present invention provides an integrated gear box traction motor, which mainly comprises a traction motor 1 and a gear box 2, and the power transmission path of the gear box 2 is "L" shaped when viewed from the orientation shown in the drawings.

The vertical part of the gear box 2 is designed with a hollow structure so as to pass through an axle (not shown in the figure), the power output end of the gear box 2 is provided with an output shaft coupling 21 so as to be in transmission connection with the axle through the output shaft coupling 21, the power output end of the gear box 2 is matched with the output shaft coupling 21 through shaft sleeve face teeth 22 to transmit power to the output shaft coupling 21, the output shaft coupling 21 further transmits power to the axle through an inner shaft sleeve, the transverse part of the gear box 2 is provided with a power input end, and a power input shaft of the power input end is parallel to the axle.

The traction motor 1 is arranged in the corner areas of the vertical part and the transverse part of the gear box 2, the power output shaft 11 of the traction motor is parallel to the axle, and the traction motor and the gear box 2 form an integrated structure with compact structure and regular shape, so that redundant or wasted space is avoided as much as possible.

In order to further reduce the whole volume of the traction motor 1 and the gear box 2, the traction motor 1 is connected with the shell of the gear box 2 through a flange 3 and a bolt, a power output shaft of the traction motor 1 is connected with a power input shaft of the gear box 2 through an input shaft coupling 4 to drive a train to run, the input shaft coupling 4 is arranged in the flange 3 of the traction motor 1 and the gear box 2, the input shaft coupling 4 is arranged inside the flange 3, the volume occupied by a connecting part of the traction motor 1 and the gear box 2 can be reduced, and therefore the space is effectively saved.

In addition, the power output end of the traction motor 1 is not provided with a bearing, and after the power output shaft of the traction motor is connected with the power input shaft of the gear box 2 through the input end coupling 4, the power output shaft and the power input shaft of the gear box 2 share the bearing 5.

In terms of connection mode, the motor side of the input end coupling 4 is in taper interference fit with the power output shaft 11 of the traction motor 1, and the gear box side of the input end coupling 4 is in face tooth fit with the power input shaft 23 of the gear box 2, so that space is further saved.

In addition, the gear box 2 is of a two-stage transmission herringbone tooth structure, the influence of transverse force on a bearing can be reduced, and a labyrinth seal structure 24 is arranged at the power input end of the gear box 2, so that lubricating oil of the gear box 2 can be prevented from entering the traction motor 1.

When the device is installed, the gear box 2 and the traction motor 1 are integrally hung on the bogie, so that the weight of the whole driving device is changed into the mass between springs, and the dynamic performance of the bogie can be obviously improved

When the traction motor works, the traction motor 1 works to transmit torque to the input shaft 23 of the gear box through the input shaft coupling 4, the gear box 2 transmits the torque to the output shaft coupling 21 through gear engagement, and the output shaft coupling 21 is in interference fit with the axle taper, so that the torque is transmitted to an axle and wheel pairs arranged at two ends of the axle are driven to advance.

The above embodiments are merely preferred embodiments of the present invention, and are not limited thereto, and different embodiments can be obtained by performing targeted adjustment according to actual needs. For example, different types, powers or volumes of traction motors 1 can be selected according to the actual requirements, or the input coupling 4 can be connected to the traction motor 1 in other ways, etc. This is not illustrated here, since many implementations are possible.

The integrated gear box traction motor adopts an integrated structure, the output end of the traction motor 1 is not provided with a bearing, and the input end coupling 4 is arranged in the integrated gear box traction motor, so that the occupied space is smaller, the difficult problem that the space of a built-in bogie driving device is small is solved, unsprung weight can be transferred to the space between springs, the problem that unsprung mass is large in the original gear box axle-suspension mounting mode is solved, the unsprung mass is reduced, and the bogie can adapt to high-speed running conditions.

In addition to above-mentioned, the utility model provides a rail vehicle specifically can be EMUs or high-speed railway train, include automobile body, bogie and locate the driving system of bogie, driving system is equipped with the integral type gear box traction motor that the above-mentioned described, all the other structures of relevant rail vehicle please refer to prior art, and this text is no longer repeated.

It is right above the utility model provides an integral type gear box traction motor and rail vehicle have carried out detailed introduction. 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 core concepts 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. The integrated gear box traction motor comprises a traction motor (1) and a gear box (2), wherein a power output shaft (11) of the traction motor (1) is in transmission connection with a power input shaft (23) of the gear box (2), and is characterized in that the traction motor (1) is connected with the gear box (2) through a flange (3) and a bolt; the power output shaft (11) of the traction motor (1) is connected with the power input shaft (23) of the gear box (2) through an input end coupling (4), and the input end coupling (4) is arranged in the traction motor (1) and a flange (3) of the gear box (2).

2. An integrated gearbox traction motor according to claim 1, characterized in that the power take-off of the traction motor (1) is provided without bearings, sharing a bearing (5) with the power input shaft (23) of the gearbox (2).

3. An integrated gearbox traction motor as defined in claim 1, wherein the motor side of said input coupling (4) is a taper interference fit with the power take-off shaft (11) of said traction motor (1).

4. An integrated gearbox traction motor as defined in claim 1, wherein the gearbox side of said input coupling (4) is in face tooth engagement with the power input shaft (23) of said gearbox (2).

5. An integrated gearbox traction motor as claimed in claim 1, wherein the gearbox (2) is integrally suspended with the traction motor (1) from the bogie such that the overall drive weight becomes the unsprung mass.

6. An integrated gearbox traction motor as claimed in claim 1, characterized in that the power transmission path of the gearbox (2) is "L" -shaped; the vertical part of the gear box (2) is provided with a power output end which is used for penetrating through an axle, and the power output end is provided with an output end coupling (21) joint which is used for being connected with the axle; the transverse part of the gear box (2) is provided with a power input end, and a power input shaft (23) of the power input end is parallel to the axle.

7. An integrated gearbox traction motor according to claim 6, characterized in that the traction motor (1) is located in the corner area of the vertical and lateral parts of the gearbox (2), the power take-off shaft (11) of the traction motor (1) being parallel to the axle.

8. An integrated gearbox traction motor as claimed in claim 1, characterized in that the power input of the gearbox (2) is provided with a labyrinth seal (24).

9. An integrated gearbox traction motor as claimed in any one of claims 1 to 8, wherein the gearbox (2) is a two stage drive herringbone tooth construction.

10. A rail vehicle comprising a body, a bogie and a power system provided in the bogie, characterised in that the power system is provided with an integrated gearbox traction motor as claimed in any one of claims 1 to 9.

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