Railway locomotive new energy motor pump supporting device

Abstract

The utility model discloses a railway locomotive new energy motor pump supporting device which is used for assembling a motor pump assembly on a locomotive, a motor and a hydraulic pump are installed on a supporting piece, and an output shaft of the motor and an input shaft of the hydraulic pump are connected through a spline and a spline housing, so that the output shaft of the motor and the input shaft of the hydraulic pump are located on the same axis. The supporting piece comprises a base, a first support and a second support, the first support and the second support are connected with the base in a welded mode, base mounting holes are formed in the base and used for connecting the base for shock absorption, a third support is fixed between the first support and the second support and is of a hollow columnar structure, and the first support is welded to one end of the third support. The device has the advantages that the structure is simple and reliable, the occupied space is small, the practicability is high, the supporting piece is formed by splicing and welding the steel plate and the reinforcing rib, the strength is high, and the requirements of low cost and small-batch production can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, and in particular to a railway locomotive new energy motor pump supporting device. Background Art

[0002] Electric motors are a common mechanical device in our daily lives, with a wide range of uses, many product types, and complex specifications and models. In recent years, axial flux motors are gaining more and more attention. Traditional radial flux motors use permanent magnets or induction motors. They have made great progress in optimizing weight and cost, but they face many difficulties in continued development. Axial flux, a completely different type of motor, may be a good alternative. Axial flux motors perform better in every aspect. They are not only lighter and smaller, but also provide greater torque and more power.

[0003] With the popularization of electric locomotives, the hydraulic system power of locomotives has also widely adopted the method of motor-driven hydraulic pumps. In order to save locomotive space and improve the transmission efficiency of the motor, the motor pump also needs to be fixed with a new bracket. The bracket of the radial motor pump cannot meet the strength and installation requirements. The traditional radial motor is large in size and is generally connected to the pump by a flange connection, and is fixed to the base plate by a foot connection. If it is not installed in the air with a bracket, it is easy to vibrate and the bracket will break. On the contrary, the axial size of the axial flux motor is small and the diameter is large, so it needs a bracket to support it and connect it to the pump. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a railway locomotive new energy motor pump support device, which is used to assemble a motor pump assembly on a locomotive. The motor pump assembly includes a motor and a hydraulic pump. The motor and the hydraulic pump are installed on a support member. The output shaft of the motor is connected to the input shaft of the hydraulic pump through a spline and a spline sleeve, so that the output shaft of the motor and the input shaft of the hydraulic pump are on the same axis.

[0005] Preferably, the support member is formed by welding steel plates and reinforcing ribs.

[0006] Preferably, the support member comprises a base and a first bracket and a second bracket welded to the base, and a base mounting hole is provided on the base, and the base mounting hole is used to connect the base to shock absorption.

[0007] Preferably: a third bracket is fixed between the first bracket and the second bracket, the third bracket is a hollow columnar structure, one end of the third bracket is welded to the first bracket, and the other end of the third bracket is welded to the second bracket, so that the first center hole is connected to the second center hole.

[0008] Preferably, the upper end of the base is fixedly connected to the first reinforcing rib, and one side end of the first reinforcing rib is fixedly connected to the first bracket.

[0009] Preferably, the first bracket is provided with a first central hole, and the first central hole is used for passing the input shaft of the hydraulic pump.

[0010] Preferably, the first bracket is further provided with a plurality of first fixing holes, and the first fixing holes are used for installing stud bolts.

[0011] Preferably: a stop is provided on the outer side wall of the first bracket corresponding to the hydraulic pump for positioning the hydraulic pump.

[0012] Preferably, the second bracket is provided with a second center hole, and the second center hole is used for passing the output shaft of the motor.

[0013] Preferably, the second bracket is further provided with a plurality of second fixing holes, and the second fixing holes are used for installing bolts.

[0014] Technical effects and advantages of the utility model:

[0015] This device has a simple and reliable structure, occupies a small space, and is highly practical. It uses a more space-saving spline sleeve to transmit power, which not only saves locomotive installation space, but also ensures the transmission efficiency of the motor pump, and the power transmission is more stable. The support parts are welded with steel plates and reinforcing ribs, with high strength, which can meet the needs of low cost and small batch production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a railway locomotive new energy motor pump support device provided in an embodiment of the present application;

[0017] Figure 2 It is a structural schematic diagram of a support member in a railway locomotive new energy motor pump support device provided in an embodiment of the present application;

[0018] Figure 3 It is a cross-sectional view of a support member in a railway locomotive new energy motor pump support device provided in an embodiment of the present application.

[0019] In the figure: 1. motor; 2. first nut; 3. first washer; 4. bolt; 5. support member; 51. base; 511. base mounting hole; 512. first reinforcing rib; 52. first bracket; 521. first center hole; 522. first fixing hole; 523. stopper; 53. second bracket; 531. second center hole; 532. second fixing hole; 54. third bracket; 55. second reinforcing rib; 6. spline sleeve; 7. hydraulic pump; 8. second nut; 9. second washer; 10. stud bolt. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0021] See also Figure 1 As shown, in this embodiment, a railway locomotive new energy motor pump support device is provided, which is used to assemble a motor pump assembly on the locomotive. The motor pump assembly includes a motor 1 and a hydraulic pump 7. The motor 1 and the hydraulic pump 7 are installed on a support member 5. The output shaft of the motor 1 is connected to the input shaft of the hydraulic pump 7 through a spline and a spline sleeve 6, so that the output shaft of the motor 1 and the input shaft of the hydraulic pump 7 are on the same axis. The spline sleeve 6 that saves more space is used to connect and transmit power, which saves not only the installation space of the locomotive, but also ensures the transmission efficiency of the motor pump, and the power transmission is more stable. The device has a simple and reliable structure, occupies a small space, and is highly practical.

[0022] Furthermore, the motor 1 is installed on one end of the support member 5 through the first nut 2, the first washer 3 and the first bolt 4, and the hydraulic pump 7 is installed on the other end of the support member 5 through the second nut 8, the second washer 9 and the stud bolt 10, and then the motor pump assembly is assembled on the locomotive through the support member 5 through shock absorption.

[0023] In one embodiment, see Figure 2-3 As shown, the support member 5 is made of welded steel plates and reinforcing ribs. The support member 5 includes a base 51 and a first bracket 52 and a second bracket 53 welded to the base 51. A base mounting hole 511 is opened on the base 51, and the base mounting hole 511 is used to connect the base 51 to shock absorption. The upper end of the base 51 is fixedly connected to the first reinforcing rib 512, and one side end of the first reinforcing rib 512 is fixedly connected to the first bracket 52, thereby improving the strength between the first bracket 52 and the base 51.

[0024] The first bracket 52 is provided with a first center hole 521, and the first center hole 521 is used to pass through the input shaft of the hydraulic pump 7. The first bracket 52 is also provided with a plurality of first fixing holes 522, and the first fixing holes 522 are used to install the stud bolts 10, and then fixed by the second nuts 8 and the second washers 9. The outer wall of the first bracket 52 is provided with a stopper 523 corresponding to the hydraulic pump 7, and the stopper 523 is a concave stopper, which facilitates the positioning of the hydraulic pump 7 and ensures accuracy.

[0025] The second bracket 53 is provided with a second center hole 531 for passing the output shaft of the motor 1 . The second bracket 53 is also provided with a plurality of second fixing holes 532 for installing bolts 4 , which are then fixed by the first nut 2 and the first washer 3 .

[0026] A third bracket 54 is fixed between the first bracket 52 and the second bracket 53. The third bracket 54 is a hollow columnar structure. One end of the third bracket 54 is welded to the first bracket 52, and the other end of the third bracket 54 is welded to the second bracket 53, so that the first center hole 521 and the second center hole 531 are connected.

[0027] A plurality of second reinforcing ribs 55 arranged in the radial direction are fixed to the outer wall of the third bracket 54 . One end of the second reinforcing rib 55 is welded to the first bracket 52 , and the other end of the second reinforcing rib 55 is welded to the second bracket 53 .

[0028] In this embodiment, the support member 5 is formed by welding steel plates and reinforcing ribs, has high strength, and can meet the requirements of low cost and small batch production.

[0029] It can be understood that the support member 5 can not only be used for fixing on the vehicle frame during vehicle installation, but also can be used for bench performance testing of the motor and the hydraulic pump before installation on the vehicle.

[0030] The working principle of the utility model is:

[0031] When in use, first lift the motor 1, fix it with the support 5 with the bolt 4, the first nut 2 and the first washer 3, position the spline sleeve 6 with the hydraulic pump 7 at the other end of the motor 1 through the spline through the stop 523 of the support 5, and fix it with the stud bolt 10, the second nut 8 and the second washer 9 to ensure that the input shaft of the hydraulic pump 7 and the output shaft of the motor 1 are on the same axis. The support 5 is connected to the shock absorber through the base mounting hole 511, so that the motor pump assembly is assembled on the locomotive. The support 5 is reinforced with reinforcing ribs in many places and is welded as a whole. Compared with ordinary brackets, it has higher strength and the support 5 is more stable during operation.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A railway locomotive new energy motor pump support device, used for assembling a motor pump assembly on a locomotive, the motor pump assembly comprising a motor (1) and a hydraulic pump (7), characterized in that: The motor (1) and the hydraulic pump (7) are mounted on a support (5), and the output shaft of the motor (1) is connected to the input shaft of the hydraulic pump (7) via a spline and a spline sleeve (6), so that the output shaft of the motor (1) and the input shaft of the hydraulic pump (7) are on the same axis; The support member (5) comprises a base (51), a first bracket (52) and a second bracket (53) which are welded to the base (51); a base mounting hole (511) is provided on the base (51); the base mounting hole (511) is used to connect the base (51) to reduce vibration; A third bracket (54) is fixed between the first bracket (52) and the second bracket (53); the third bracket (54) is in a hollow columnar structure; one end of the third bracket (54) is welded to the first bracket (52), and the other end of the third bracket (54) is welded to the second bracket (53), so that the first center hole (521) and the second center hole (531) are connected.

2. A railway locomotive new energy motor pump support device according to claim 1, characterized in that: The support member (5) is formed by welding steel plates and reinforcing ribs.

3. A railway locomotive new energy motor pump support device according to claim 1, characterized in that: The upper end of the base (51) is fixedly connected to the first reinforcing rib (512), and one side end of the first reinforcing rib (512) is fixedly connected to the first bracket (52).

4. A railway locomotive new energy motor pump support device according to claim 3, characterized in that: The first bracket (52) is provided with a first central hole (521), and the first central hole (521) is used to pass through the input shaft of the hydraulic pump (7).

5. A railway locomotive new energy motor pump support device according to claim 4, characterized in that: The first bracket (52) is also provided with a plurality of first fixing holes (522), and the first fixing holes (522) are used for installing stud bolts (10).

6. A railway locomotive new energy motor pump support device according to claim 5, characterized in that: A stopper (523) is provided on the outer side wall of the first bracket (52) corresponding to the hydraulic pump (7) for positioning the hydraulic pump (7).

7. A railway locomotive new energy motor pump support device according to claim 1, characterized in that: The second bracket (53) is provided with a second center hole (531), and the second center hole (531) is used to pass the output shaft of the motor (1).

8. A railway locomotive new energy motor pump support device according to claim 7, characterized in that: The second bracket (53) is also provided with a plurality of second fixing holes (532), and the second fixing holes (532) are used for installing bolts (4).

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