Electric transmission intersecting shafting axle gear box for rail car

Abstract

The invention provides an electric transmission intersecting shafting axle gear box for a rail car. The electric transmission intersecting shafting axle gear box comprises an axle gear box body. The transmission shaft is arranged on one side of the axle gearbox. A motor is arranged at one end of the transmission shaft. The wheel pair penetrates through the inner side of the axle gear box; the driving cylindrical gear shaft is arranged in the axle gear box, a driven cylindrical gear is arranged on one side of the outer surface of the driving cylindrical gear shaft, a driving bevel gear shaft is arranged on one side in the axle gear box, and a driven bevel gear is arranged on one side of the outer surface of the driving bevel gear shaft. According to the electric transmission intersecting shafting axle gear box for the rail car, through an electric transmission intersecting shafting arrangement mode, a motor is connected with the axle gear box through a transmission shaft, the interior of the axle gear box is arranged in an intersecting shafting mode, the motor is perpendicular to an axle and hung on a car frame, the installation position is more flexible, and the occupied space under the car is small; the axle gear box is more flexible in installation position, and the occupied space under the vehicle is small.

Description

Technical Field

[0001] The invention relates to the field of axle gearboxes, and in particular to an axle gearbox for an electric transmission intersecting shaft system for a rail vehicle. Background Art

[0002] Traditional internal combustion engine rail vehicles produce loud noises and emit large amounts of exhaust gas during traction operations, resulting in a harsh construction environment in tunnels. The demand of engineering construction groups for environmentally friendly, clean, economical, efficient and safe traction vehicles is also gradually increasing, so electric rail vehicles are gradually becoming the mainstream in subway construction vehicles.

[0003] The electric transmission axle gearbox devices used in existing electric rail vehicles have a variety of structures, but most of them are parallel shaft arrangements. The power machine layout needs to be installed on the bogie parallel to the output shaft, which will occupy a large amount of space on the bogie under the vehicle, resulting in a tight space structure of the bogie.

[0004] Therefore, it is necessary to provide an electric transmission intersecting shaft system axle gearbox for rail vehicles to solve the above technical problems. Summary of the invention

[0005] The present invention provides an electric transmission intersecting shaft system axle gearbox for a rail vehicle, which solves the problem that the electric transmission axle gearbox devices used in existing electric rail vehicles have various structures, but most of them are parallel shaft system arrangements, and the power machine arrangement needs to be installed on the bogie in parallel with the output shaft, which will occupy a large amount of space on the bogie under the vehicle, resulting in a tight space structure of the bogie.

[0006] In order to solve the above technical problems, the present invention provides an electric transmission intersecting shaft system axle gearbox for a rail vehicle, comprising: an axle gearbox;

[0007] A transmission shaft, the transmission shaft is arranged on one side of the axle gear box, and a motor is arranged at one end of the transmission shaft;

[0008] A wheelset, the wheelset being arranged to pass through the interior of the axle gearbox;

[0009] A driving cylindrical gear shaft, the driving cylindrical gear shaft is arranged inside the axle gear box, a passive cylindrical gear is arranged on one side of the outer surface of the driving cylindrical gear shaft, a driving bevel gear shaft is arranged on one side inside the axle gear box, and a passive bevel gear is arranged on one side of the outer surface of the driving bevel gear shaft.

[0010] Preferably, an anti-vibration device is provided at the bottom of the outer surface of the axle gear box, and extrusion blocks are fixedly installed at the bottom of both sides of the outer surface of the axle gear box.

[0011] Preferably, the anti-seismic device includes an anti-seismic box, a storage groove, a movable groove, a sliding rod and a spring. The anti-seismic box is slidably installed at the bottom of the outer surface of the axle gear box, the storage groove is opened in the middle of the top of the anti-seismic box, and the two movable grooves are respectively opened on both sides of the inner cavity wall of the storage groove. The sliding rod is fixedly installed inside the movable groove, and the spring is sleeved on one side of the outer surface of the sliding rod.

[0012] Preferably, a compression pad is provided at the bottom of the storage tank.

[0013] Preferably, the extrusion block is slidably mounted on the top of the outer surface of the slide rod.

[0014] Preferably, the bottom end of the spring is fixedly connected to the bottom of the inner cavity wall of the movable groove, and the top end of the spring is fixedly connected to the top of the extrusion block.

[0015] Preferably, the squeezing pad is made of rubber.

[0016] Compared with the related art, the electric transmission intersecting shaft system axle gearbox for rail vehicles provided by the present invention has the following beneficial effects:

[0017] The present invention provides an electric transmission intersecting shaft system axle gearbox for a rail vehicle. Through the intersecting shaft system arrangement of the electric transmission, the motor is connected to the axle gearbox through a transmission shaft. The interior of the axle gearbox is arranged in an intersecting shaft system. The motor is mounted on the frame perpendicular to the axle, so the installation position is more flexible and less space is occupied under the vehicle. The installation position of the axle gearbox is more flexible and less space is occupied under the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a first embodiment of an electric transmission intersecting shaft system axle gearbox for a rail vehicle provided by the present invention;

[0019] Figure 2 for Figure 1 A schematic top view of the axle gearbox is shown;

[0020] Figure 3 for Figure 1 The schematic diagram of the axle gearbox structure shown;

[0021] Figure 4 for Figure 3 A schematic cross-sectional view of an axle gearbox is shown;

[0022] Figure 5 for Figure 3 A schematic side cutaway view of an axle gearbox is shown;

[0023] Figure 6 A schematic structural diagram of a second embodiment of an electric transmission intersecting shaft system axle gearbox for a rail vehicle provided by the present invention;

[0024] Figure 7 for Figure 6 An enlarged schematic diagram of point A is shown;

[0025] Figure 8 for Figure 6 The schematic diagram of the anti-seismic device structure shown;

[0026] Fig. 9 for Figure 8 An enlarged schematic diagram of point B is shown.

[0027] Numbers in the figure: 1, axle gear box, 2, transmission shaft, 3, motor, 4, wheel pair, 6, driving cylindrical gear shaft, 7, passive cylindrical gear, 8, driving bevel gear shaft, 9, passive bevel gear, 10, anti-seismic device, 101, anti-seismic box, 102, storage slot, 103, moving slot, 104, sliding rod, 105, spring, 11, extrusion block, 12, extrusion pad. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0029] First embodiment

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic structural diagram of a first embodiment of an electric transmission intersecting shaft system axle gearbox for a rail vehicle provided by the present invention; Figure 2 for Figure 1 A schematic top view of the axle gearbox is shown; Figure 3 for Figure 1 The schematic diagram of the axle gearbox structure shown; Figure 4 for Figure 3 A schematic cross-sectional view of an axle gearbox is shown; Figure 5 for Figure 3 The schematic side cross-sectional view of the axle gearbox is shown. An electric transmission intersecting shaft system axle gearbox for a rail vehicle comprises: an axle gearbox 1;

[0031] A transmission shaft 2, wherein the transmission shaft 2 is arranged at one side of the axle gear box 1, and a motor 3 is arranged at one end of the transmission shaft 2;

[0032] A wheelset 4, wherein the wheelset 4 is arranged to pass through the interior of the axle gearbox 1;

[0033] A driving cylindrical gear shaft 6 is arranged inside the axle gear box 1, a passive cylindrical gear 7 is arranged on one side of the outer surface of the driving cylindrical gear shaft 6, a driving bevel gear shaft 8 is arranged on one side inside the axle gear box 1, and a passive bevel gear 9 is arranged on one side of the outer surface of the driving bevel gear shaft 8.

[0034] The working principle of the electric transmission intersecting shaft system axle gearbox for rail vehicles provided by the present invention is as follows:

[0035] During operation, the axle gearbox 1 is first installed on the wheelset 4, the axle gearbox 1 and the motor 3 are connected together through the transmission shaft 2, the output axis of the axle gearbox 1 (i.e. the axle centerline) is perpendicular to the output center of the motor 3, and the output power of the motor 3 is transmitted to the axle gearbox 1 through the transmission shaft 2, and finally output to the wheelset 4 to drive the vehicle to move.

[0036] The passive cylindrical gear 7 is installed on the active bevel gear shaft 8, and the passive bevel gear 9 is installed on the axle. All shafts and gears are fixed in the axle gear box 1. When the axle gear box 1 is working, the active cylindrical gear shaft 6 is meshed with the passive cylindrical gear 7, and the active bevel gear shaft 8 is meshed with the passive bevel gear 9, so that the input power of the active cylindrical gear shaft 6 is transmitted to the axle.

[0037] Compared with the related art, the electric transmission intersecting shaft system axle gearbox for rail vehicles provided by the present invention has the following beneficial effects:

[0038] The present invention provides an electric transmission intersecting shaft system axle gearbox for a rail vehicle. Through the intersecting shaft system arrangement of the electric transmission, the motor 3 is connected to the axle gearbox 1 through the transmission shaft 2. The interior of the axle gearbox 1 is arranged in an intersecting shaft system. The motor 3 is mounted on the frame perpendicular to the axle, so the installation position is more flexible and less space is occupied under the vehicle. The installation position of the axle gearbox 1 is more flexible and less space is occupied under the vehicle.

[0039] Second embodiment

[0040] Please refer to Figure 6 , Figure 7 , Figure 8 and Fig. 9 Based on the electric transmission intersecting shaft system axle gearbox for rail vehicles provided in the first embodiment of the present application, the second embodiment of the present application proposes another electric transmission intersecting shaft system axle gearbox for rail vehicles. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0041] Specifically, the difference of the electric transmission intersecting shaft axle gearbox for a rail vehicle provided in the second embodiment of the present application is that, in an electric transmission intersecting shaft axle gearbox for a rail vehicle, an anti-vibration device 10 is provided at the bottom of the outer surface of the axle gearbox 1, and extrusion blocks 11 are fixedly installed at the bottom of both sides of the outer surface of the axle gearbox 1.

[0042] The anti-seismic device 10 includes an anti-seismic box 101, a storage slot 102, a movable slot 103, a slide bar 104 and a spring 105. The anti-seismic box 101 is slidably installed at the bottom of the outer surface of the axle gear box 1. The storage slot 102 is opened in the middle of the top of the anti-seismic box 101. The two movable slots 103 are respectively opened on both sides of the inner cavity wall of the storage slot 102. The slide bar 104 is fixedly installed inside the movable slot 103. The spring 105 is sleeved on one side of the outer surface of the slide bar 104.

[0043] A compression pad 12 is disposed at the bottom of the storage tank 102 .

[0044] The extrusion block 11 is slidably mounted on the top of the outer surface of the slide rod 104 .

[0045] The bottom end of the spring 105 is fixedly connected to the bottom of the inner wall of the moving groove 103 , and the top end of the spring 105 is fixedly connected to the top of the extrusion block 11 .

[0046] The squeezing pad 12 is made of rubber.

[0047] The working principle of the electric transmission intersecting shaft system axle gearbox for rail vehicles provided by the present invention is as follows:

[0048] During operation, the extrusion block 11 is first sleeved on the outer surface of the slide rod 104, the bottom end of the spring 105 is fixedly connected to the bottom of the inner wall of the movable groove 103, and the top end of the spring 105 is fixedly connected to the top of the extrusion block 11. The restoring elastic force of the spring 105 buffers the vibration intensity of the extrusion block 11 and the axle gear box 1.

[0049] Compared with the related art, the electric transmission intersecting shaft system axle gearbox for rail vehicles provided by the present invention has the following beneficial effects:

[0050] The present invention provides an axle gearbox for an electric transmission intersecting shaft system for a rail vehicle, wherein the axle gearbox 1 and the extrusion block 11 are pushed by the restoring elastic force of a spring 105 and an extrusion pad 12, so as to buffer the axle gearbox 1, buffer the external vibration impact force when the axle gearbox 1 is installed, maintain the stability of the installation of the axle gearbox 1, and extend the service life of the axle gearbox 1.

[0051] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electric transmission intersecting shaft system axle gearbox for a rail vehicle, characterized in that: include: Axle gearbox; A transmission shaft, the transmission shaft is arranged on one side of the axle gear box, and a motor is arranged at one end of the transmission shaft; A wheelset, the wheelset being arranged to pass through the interior of the axle gearbox; A driving cylindrical gear shaft, the driving cylindrical gear shaft is arranged inside the axle gear box, a passive cylindrical gear is arranged on one side of the outer surface of the driving cylindrical gear shaft, a driving bevel gear shaft is arranged on one side inside the axle gear box, and a passive bevel gear is arranged on one side of the outer surface of the driving bevel gear shaft.

2. The electric transmission intersecting shaft system axle gearbox for rail vehicles according to claim 1, characterized in that: An anti-vibration device is arranged at the bottom of the outer surface of the axle gear box, and extrusion blocks are fixedly installed at the bottom of both sides of the outer surface of the axle gear box.

3. The electric transmission intersecting shaft system axle gearbox for rail vehicles according to claim 1, characterized in that: The anti-seismic device includes an anti-seismic box, a storage groove, a movable groove, a sliding rod and a spring. The anti-seismic box is slidably installed at the bottom of the outer surface of the axle gear box, the storage groove is opened in the middle of the top of the anti-seismic box, and the two movable grooves are respectively opened on both sides of the inner cavity wall of the storage groove. The sliding rod is fixedly installed inside the movable groove, and the spring is sleeved on one side of the outer surface of the sliding rod.

4. The electric transmission intersecting shaft system axle gearbox for rail vehicles according to claim 1, characterized in that: A compression pad is arranged at the bottom of the storage tank.

5. The electric transmission intersecting shaft system axle gearbox for rail vehicles according to claim 2, characterized in that: The extrusion block is slidably mounted on the top of the outer surface of the slide rod.

6. The electric transmission intersecting shaft system axle gearbox for rail vehicles according to claim 3, characterized in that: The bottom end of the spring is fixedly connected to the bottom of the inner cavity wall of the moving groove, and the top end of the spring is fixedly connected to the top of the extrusion block.

7. The electric transmission intersecting shaft system axle gearbox for rail vehicles according to claim 4, characterized in that: The squeezing pad is made of rubber.

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