Railway vehicle driving wheel pair

Abstract

The invention discloses a rail vehicle driving wheel set which comprises a suspension frame, a driving assembly, a wheel assembly, a braking assembly and a hanging assembly, the driving assembly is arranged on the suspension frame and used for hanging the driving assembly, and the wheel assembly is arranged on the driving assembly and used for ensuring that the driving assembly provides driving force for the wheel assembly on the suspension frame. The braking assembly is arranged on the suspension frame, connected with the driving assembly and used for braking the driving assembly, the hanging assembly is arranged at the top of the suspension frame and used for being safely connected with a vehicle frame, the hanging assembly comprises an elastic hanger, a hanging installation base and an anti-disengaging base, the hanging installation base is arranged on the elastic hanger, and the anti-disengaging base is arranged on the side, close to the elastic hanger, of the suspension frame. The whole structure is simple, driving force can be provided for the wheel pair through the motor without optimizing and transforming a frame, high-power and large-transmission-ratio driving can be achieved in a limited space, the device is suitable for different frame structures, and the cost is greatly reduced for dealing with environment-friendly transformation.

Description

Technical Field

[0001] This invention belongs to the field of rail vehicle technology, and particularly relates to a rail vehicle drive wheelset. Background Technology

[0002] The wheelset is the part of a locomotive or rolling stock that comes into contact with the rails, consisting of two wheels securely mounted on the same axle. The wheelset connects to the drive unit to ensure the locomotive or rolling stock runs and steers on the rails. Current technology uses internal combustion engines for propulsion, but diesel locomotives are inefficient, polluting, and energy-intensive, and come in various types. To meet environmental requirements, internal combustion engine drives are being replaced by electric motor drives. Electric motors are typically independently suspended on the bogie or suspended from the axle using an axle box structure. Ensuring a proper connection between the motor and the wheelset requires extensive optimization of the entire vehicle structure, thus increasing manufacturing costs. Summary of the Invention

[0003] To at least partially solve the technical problems existing in the prior art, the present invention provides a rail vehicle drive wheelset.

[0004] The rail vehicle drive wheelset of the present invention includes a suspension frame, a drive assembly, a wheel assembly, a braking assembly, and a suspension assembly. The drive assembly is disposed on the suspension frame for suspending the drive assembly. The wheel assembly is disposed on the drive assembly for ensuring that the drive assembly provides driving force to the wheel assembly on the suspension frame. The braking assembly is disposed on the suspension frame and connected to the drive assembly for braking the drive assembly. The suspension assembly is disposed on the top of the suspension frame for secure connection to the vehicle frame, wherein:

[0005] The suspension assembly includes an elastic hanger, a hanger mounting base, and an anti-detachment base. The hanger mounting base is disposed on the elastic hanger, and the anti-detachment base is disposed on the side of the suspension frame near the elastic hanger.

[0006] Furthermore, in the aforementioned rail vehicle drive wheelset, the suspension frame is configured as a box structure, with a diamond-shaped connecting groove running through the middle of the suspension frame, a connecting plate at one end of the diamond-shaped connecting groove, mounting grooves on both sides of the suspension frame, the mounting grooves communicating with the diamond-shaped connecting groove, and a connecting frame longitudinally arranged at the center of the suspension frame.

[0007] Furthermore, in the aforementioned rail vehicle drive wheelset, the drive assembly includes a motor, a gearbox, and a coupling. The motor is fixedly installed in the mounting groove by bolts, the gearbox is fixed to the connecting plate by bolts, the input end of the gearbox and the output end of the motor are both inserted into the diamond-shaped connecting groove, and the output end of the motor and the input end of the gearbox are connected through the coupling.

[0008] Furthermore, in the aforementioned rail vehicle drive wheelset, the coupling is a drum-shaped gear coupling.

[0009] Furthermore, in the aforementioned rail vehicle drive wheelset, the wheel assembly includes an axle and a wheel, the axle passes through the gearbox and is connected to the output end of the gearbox, and the wheel is symmetrically mounted at both ends of the axle.

[0010] Furthermore, in the aforementioned rail vehicle drive wheelset, the braking assembly includes a brake and a brake disc. The brake is fixed by bolts to the diamond-shaped connecting groove on the side near the gearbox input end, and the brake disc is mounted on the brake output end. The brake disc is keyed to the gearbox input end.

[0011] Furthermore, in the aforementioned rail vehicle drive wheelset, the hoisting mounting base includes a mounting back plate, reinforcing ribs, and a hoisting mounting plate. The hoisting mounting plate is vertically welded to the middle of the mounting back plate. The reinforcing ribs are disposed between the mounting back plate and the hoisting mounting plate. The hoisting mounting plate has a mounting hole in the middle. The mounting back plate has frame connection holes on both sides for connecting and fixing to the frame.

[0012] Furthermore, in the aforementioned rail vehicle drive wheelset, the elastic suspension includes an adjusting rod, an adjusting bolt, two adjusting shims, and a connecting bearing. The two adjusting shims are respectively disposed on both sides of the hoisting mounting plate. The upper end of the adjusting rod passes through the adjusting shims and the hoisting mounting plate in sequence and engages with the adjusting bolt threadedly. One end of the connecting bearing is fixedly connected to the adjusting rod, and the other end of the connecting bearing is connected to the connecting frame via a shaft.

[0013] Furthermore, in the aforementioned rail vehicle drive wheelset, the adjusting shim is made of rubber, and the connecting bearing is a spherical bearing.

[0014] Furthermore, in the aforementioned rail vehicle drive wheelset, the anti-detachment seat includes an anti-detachment connecting plate and a connecting hinge. The connecting hinge is welded to the middle of the anti-detachment connecting plate, and the connecting hinge is hinged to the connecting frame via a hinge shaft. Anti-detachment connecting holes are provided on both sides of the anti-detachment connecting plate for connecting to the vehicle frame.

[0015] The rail vehicle drive wheelset of the present invention has the following advantages and beneficial effects:

[0016] The invention has a simple overall structure and can provide driving force to the wheelsets through the motor without the need for frame optimization or modification. It can achieve high power and high transmission ratio drive in a limited space, and is suitable for different frame structures, which greatly reduces costs for environmental protection modifications. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for further understanding of the embodiments of the present invention and constitute a part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the rail vehicle drive wheelset of the present invention;

[0019] Figure 2 This is a main view of the rail vehicle drive wheelset of the present invention;

[0020] Figure 3 This is a schematic diagram of the suspension frame structure for the rail vehicle drive wheelset of the present invention;

[0021] Figure 4 This is a schematic diagram of the suspension mounting base structure for the rail vehicle drive wheelset of the present invention;

[0022] Figure 5 This is a schematic diagram of the anti-detachment seat structure for the drive wheelset of a rail vehicle according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1: Suspension bracket; 11: Diamond-shaped connecting groove; 12: Connecting plate; 13: Mounting groove; 14: Connecting bracket;

[0025] 2: Drive assembly; 21: Motor; 22: Gearbox; 23: Coupling;

[0026] 3: Wheel assembly; 31: Axle; 32: Wheel;

[0027] 4: Braking assembly; 41: Brake; 42: Brake disc;

[0028] 5: Hanging components;

[0029] 51: Flexible suspension; 511: Adjusting rod; 512: Adjusting bolt; 513: Adjusting shim; 514: Connecting bearing;

[0030] 52: Hanging mounting bracket; 521: Mounting back plate; 522: Frame connection hole; 523: Reinforcing rib; 524: Hanging mounting plate; 525: Mounting hole;

[0031] 53: Anti-detachment seat, 531: Anti-detachment connecting plate, 532: Anti-detachment connecting hole, 533: Connecting hinge. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0033] like Figures 1 to 5 As shown, the rail vehicle drive wheelset of the present invention includes a suspension frame 1, a drive assembly 2, a wheel assembly 3, a braking assembly 4, and a suspension assembly 5. The drive assembly 2 is mounted on the suspension frame 1 for suspending the drive assembly 2. The wheel assembly 3 is mounted on the drive assembly 2 to ensure that the drive assembly 2 provides driving force to the wheel assembly 3 on the suspension frame 1. The braking assembly 4 is mounted on the suspension frame 1 and connected to the drive assembly 2 for braking the drive assembly 2. The suspension assembly 5 is mounted on the top of the suspension frame 1 for secure connection to the vehicle frame.

[0034] The suspension assembly 5 includes an elastic suspension 51, a suspension mounting base 52, and an anti-detachment base 53. The suspension mounting base 52 is disposed on the elastic suspension 51, and the anti-detachment base 53 is disposed on the side of the suspension frame 1 near the elastic suspension 51.

[0035] Furthermore, in the aforementioned rail vehicle drive wheelset, the suspension frame 1 is configured as a box structure, with a diamond-shaped connecting groove 11 running through the middle of the suspension frame 1. This ensures sufficient installation space within the suspension frame 1 and improves the overall structural stability. A connecting plate 12 is provided at one end of the diamond-shaped connecting groove 11, and mounting grooves 13 are provided on both sides of the suspension frame 1. The mounting grooves 13 communicate with the diamond-shaped connecting groove 11. A connecting frame 14 is longitudinally provided at the center of the suspension frame 1, thereby effectively ensuring the stability of the suspension frame 1 after suspension and avoiding additional loads caused by eccentricity during vehicle movement.

[0036] Furthermore, in the aforementioned rail vehicle drive wheelset, the drive assembly 2 includes a motor 21, a gearbox 22, and a coupling 23. The motor 21 is fixedly installed in the mounting groove 13 by bolts, and the gearbox 22 is fixed to the connecting plate 12 by bolts. The input end of the gearbox 22 and the output end of the motor 21 are both inserted into the diamond-shaped connecting groove 11. The output end of the motor 21 and the input end of the gearbox 22 are connected through the coupling 23, thereby ensuring that the motor 21 and the gearbox 22 are connected and transmitted through the diamond-shaped connecting groove 11, thereby achieving high-power and high-transmission-ratio drive.

[0037] Furthermore, in the aforementioned rail vehicle drive wheelset, the coupling 23 adopts a drum-shaped gear coupling 23, which utilizes the drum-shaped gear coupling 23 to perform a compensation function, effectively reducing the assembly difficulty of the motor 21 and the gear.

[0038] Furthermore, in the above-mentioned rail vehicle drive wheelset, the wheel assembly 3 includes an axle 31 and a wheel 32. The axle 31 passes through the gearbox 22 and is connected to the output end of the gearbox 22. The wheel 32 is symmetrically installed at both ends of the axle 31, so that the power provided by the motor 21 drives the axle 31 to rotate through the gearbox 22.

[0039] Furthermore, in the aforementioned rail vehicle drive wheelset, the braking assembly 4 includes a brake 41 and a brake disc 42. The brake 41 is fixed to the side of the diamond-shaped connecting groove 11 near the input end of the gearbox 22 by bolts. The brake disc 42 is installed at the output end of the brake 41 and is keyed to the input end of the gearbox 22, thereby meeting different braking force requirements.

[0040] Furthermore, in the aforementioned rail vehicle drive wheelset, the hoisting mounting base includes a mounting back plate 521, a reinforcing rib 523, and a hoisting mounting plate 524. The hoisting mounting plate 524 is vertically welded to the middle of the mounting back plate 521. The reinforcing rib 523 is disposed between the mounting back plate 521 and the hoisting mounting plate 524. The hoisting mounting plate 524 has a mounting hole 525 in the middle. The mounting back plate 521 has frame connection holes 522 on both sides for connecting and fixing to the frame, thereby ensuring that the suspension frame 1 can be stably connected to the frame.

[0041] Furthermore, in the aforementioned rail vehicle drive wheelset, the elastic suspension 51 includes an adjusting rod 511, an adjusting bolt 512, two adjusting shims 513, and a connecting bearing 514. The two adjusting shims 513 are respectively disposed on both sides of the hoisting mounting plate 524. The upper end of the adjusting rod 511 passes through the adjusting shims 513 and the hoisting mounting plate 524 in sequence and engages with the adjusting bolt 512 by thread. One end of the connecting bearing 514 is fixedly connected to the adjusting rod 511, and the other end of the connecting bearing 514 is connected to the connecting frame 14 through a shaft, thereby adjusting the installation height of the suspension frame 1 to adapt to different frame structures.

[0042] Furthermore, in the aforementioned rail vehicle drive wheelset, the adjusting shim 513 is made of rubber, and the connecting bearing 514 is a spherical bearing. Thus, during vehicle operation, the elastic deformation of the adjusting shim 513 can alleviate the instantaneous impact force caused by wheel-rail contact, reducing damage to the suspension frame 1. The connecting bearing 514 provides freedom for the swing of the gearbox 22 during operation. When the track is uneven or when passing through curves, the spherical bearing compensates for lateral offset and longitudinal expansion and contraction deformation through swing, reducing additional stress on the suspension system.

[0043] Furthermore, in the aforementioned rail vehicle drive wheelset, the anti-detachment seat 53 includes an anti-detachment connecting plate 531 and a connecting hinge 533. The connecting hinge 533 is welded to the middle of the anti-detachment connecting plate 531. The connecting hinge 533 is hinged to the connecting frame 14 via a hinge shaft. The anti-detachment connecting plate 531 has anti-detachment connecting holes 532 on both sides for connecting to the vehicle frame, effectively preventing the elastic suspension 51 or the hoisting mounting seat from failing under special circumstances. The hinge of the connecting frame 14 is an elongated hole, and the hinge shaft can swing in the elongated hole, effectively avoiding interference between the suspension frame 1 and the anti-detachment seat 53 during normal vehicle operation.

[0044] Specifically, during installation, the hoisting mounting base and the anti-detachment seat 53 are first fixed to the corresponding positions on the frame with bolts. At this time, the suspension frame 1 is suspended at the bottom of the frame by adjusting the elastic suspension 51. At the same time, the connecting frame 14 is hinged to the connecting hinge lug 533 on the anti-detachment seat 53 by the hinge shaft, and the wheel 32 is connected to the frame through the axle 31.

[0045] In use, the motor 21 installed in the mounting slot 13 provides driving force to the input end of the gearbox 22 through the coupling 23. After being decelerated by the gearbox 22, it drives the axle 31 to rotate and drives the wheel 32 to move along the track. When braking, the brake 41 outputs braking force to clamp the brake disc 42 to decelerate and brake. During operation, when the elastic hanger 51 or the hoisting mounting seat falls off, the suspension frame 1 falls downward. At this time, the connecting hinge 533 pulls the hinge shaft to slide along the elongated hole on the connecting frame 14. When it slides to the top of the elongated hole, the hinge shaft limits the connecting hinge 533 and the connecting frame 14, thereby preventing the suspension frame 1 from falling onto the track.

[0046] In summary, compared with the prior art, the rail vehicle drive wheelset of the present invention has the following advantages and beneficial effects: the overall structure of the present invention is simple, and the motor can provide driving force to the wheelset without optimizing or modifying the frame. It can achieve high power and high transmission ratio drive in a limited space, is suitable for different frame structures, and greatly reduces costs for environmental protection modifications.

[0047] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Meanwhile, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, the terms "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement states shown in the accompanying drawings.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drive wheelset for a rail vehicle, characterized in that, The rail vehicle drive wheelset includes a suspension frame, a drive assembly, a wheel assembly, a braking assembly, and a suspension assembly. The drive assembly is mounted on the suspension frame for suspending itself. The wheel assembly is mounted on the drive assembly to ensure that the drive assembly provides driving force to the wheel assembly on the suspension frame. The braking assembly is mounted on the suspension frame and connected to the drive assembly for braking the drive assembly. The suspension assembly is located at the top of the suspension frame for secure connection to the vehicle frame. The suspension assembly includes an elastic hanger, a hanger mounting base, and an anti-detachment base. The hanger mounting base is disposed on the elastic hanger, and the anti-detachment base is disposed on the side of the suspension frame near the elastic hanger.

2. The rail vehicle drive wheelset according to claim 1, characterized in that, The suspension frame is configured in the form of a box, with a diamond-shaped connecting groove running through the middle of the suspension frame. A connecting plate is provided at one end of the diamond-shaped connecting groove, and mounting grooves are provided on both sides of the suspension frame. The mounting grooves are connected to the diamond-shaped connecting groove, and a connecting frame is longitudinally arranged at the center of the suspension frame.

3. The rail vehicle drive wheelset according to claim 2, characterized in that, The drive assembly includes a motor, a gearbox, and a coupling. The motor is fixedly mounted in the mounting slot by bolts. The gearbox is fixed to the connecting plate by bolts. The input end of the gearbox and the output end of the motor are both inserted into the diamond-shaped connecting slot. The output end of the motor and the input end of the gearbox are connected through the coupling.

4. The rail vehicle drive wheelset according to claim 3, characterized in that, The coupling is a drum-shaped gear coupling.

5. The rail vehicle drive wheelset according to claim 3, characterized in that, The wheel assembly includes an axle and wheels. The axle passes through the gearbox and is connected to the output end of the gearbox. The wheels are symmetrically mounted on both ends of the axle.

6. The rail vehicle drive wheelset according to claim 3, characterized in that, The braking assembly includes a brake and a brake disc. The brake is fixed by bolts to the diamond-shaped connecting groove on the side near the input end of the gearbox. The brake disc is mounted on the output end of the brake and is keyed to the input end of the gearbox.

7. The rail vehicle drive wheelset according to claim 2, characterized in that, The hoisting mounting base includes a mounting back plate, reinforcing ribs, and a hoisting mounting plate. The hoisting mounting plate is vertically welded to the middle of the mounting back plate. The reinforcing ribs are disposed between the mounting back plate and the hoisting mounting plate. The hoisting mounting plate has a mounting hole in the middle. The mounting back plate has frame connection holes on both sides for connecting and fixing to the frame.

8. The rail vehicle drive wheelset according to claim 7, characterized in that, The elastic suspension includes an adjusting rod, an adjusting bolt, two adjusting shims, and a connecting bearing. The two adjusting shims are respectively disposed on both sides of the hoisting mounting plate. The upper end of the adjusting rod passes through the adjusting shims and the hoisting mounting plate in sequence and engages with the adjusting bolt threadedly. One end of the connecting bearing is fixedly connected to the adjusting rod, and the other end of the connecting bearing is connected to the connecting frame through a shaft.

9. The rail vehicle drive wheelset according to claim 8, characterized in that, The adjusting shim is made of rubber, and the connecting bearing is a spherical bearing.

10. The rail vehicle drive wheelset according to claim 2, characterized in that, The anti-detachment seat includes an anti-detachment connecting plate and a connecting hinge. The connecting hinge is welded to the middle of the anti-detachment connecting plate and is hinged to the connecting frame via a hinge shaft. Anti-detachment connecting holes are provided on both sides of the anti-detachment connecting plate for connecting to the vehicle frame.

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