Liftable transverse moving driving assembly for rail transfer vehicle

Abstract

The utility model provides a liftable transverse moving driving assembly for a rail transfer vehicle, and aims to solve the problems that two sets of driving assemblies with different advancing directions are difficult to match under a low vehicle body of a rail vehicle in the prior art, and interference is easy to cause. The lifting mechanism comprises the coupling unit, the driving unit, the lifting unit and the wheel set modules, the wheel set modules are integrated through the lifting unit, the wheel set modules can be adjusted up and down along the Y-axis freedom degree, the longitudinal moving function is achieved through the positions of the wheel set modules at the lower limit, and the longitudinal moving function is canceled through the states of the wheel set modules at the upper limit. The power of the servo motor on the input side is transmitted through the telescopic universal coupling with the flange plate, and when the wheel set module is located at the upper limit position and the lower limit position, the telescopic universal coupling can compensate the elongation of the wheel set module in different states in a self-adaptive mode, so that the requirement for transmitting the power in the lifting process is met; the driving assembly can be used under a low vehicle body, and interference cannot be caused.

Description

Technical Field

[0001] The utility model relates to the technical field of transport rail vehicles, in particular to a lifting and transversely movable drive assembly for rail transport vehicles. Background Art

[0002] In the field of logistics and transshipment, containers and their tooling are generally long and slender in shape. For stability, the bottom of the tooling is designed to be relatively low. Therefore, the body of the special rail car must also be low, and the track surface must be consistent with the ground, so that the flat car can better transport containers and similar goods. The problem is that since existing rail cars all use longitudinal and transverse drive modes, it is difficult to match two sets of drive assemblies with different travel directions under the low body. Therefore, for one of the sets: the longitudinal drive assembly needs to adopt an adjustable drive form, that is, the drive can be lowered for use when longitudinal travel is required, and can be stored when longitudinal travel is not required. Therefore, it is necessary to propose a liftable transverse drive assembly for use on rail cars. Utility Model Content

[0003] In response to the shortcomings of the above-mentioned prior art, the present application provides a liftable and transversely movable drive assembly for rail transfer vehicles. The wheel module is integrated through a lifting unit to enable the wheel module to be adjusted up and down along the Y-axis degree of freedom. The longitudinal movement function is achieved by adjusting the wheel module position at the lower limit position, and the longitudinal movement function is canceled by adjusting the wheel module state at the upper limit position. The drive assembly can be used under a low vehicle body without causing interference.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A liftable and transversely movable drive assembly for a rail transfer vehicle comprises a coupling unit, the middle of which is connected to a drive unit for providing power input, and the two ends of the coupling unit are connected to lifting units that move along the Y-axis direction, and each set of the lifting units is integrated with a wheel module for driving the carrier to move.

[0006] Furthermore, the coupling unit is installed on the required carrier, which includes a universal coupling and two sets of bearing seats for supporting the universal coupling in a fixed position. The middle part of the universal coupling is rotatably arranged in two opposite sets of bearing seats, and the middle part of the universal coupling is provided with a driven sprocket that cooperates with the drive unit.

[0007] Furthermore, the universal coupling is a telescopic universal coupling, and first flanges are provided at both end portions thereof.

[0008] Furthermore, the driving unit is installed adjacent to the coupling unit on the required carrier, which includes a servo motor and a motor seat. The servo motor body is fixed on the motor seat, and a driving sprocket is installed on the driving end of the servo motor. The driving sprocket is connected to the driven sprocket on the universal coupling through a chain transmission.

[0009] Furthermore, each set of the wheel module includes a bracket plate, on which two sets of wheels are separately installed. Adjacent wheel pairs are connected by chain transmission, and the side of any one of the wheel pairs is also provided with a second flange connected to the coupling unit.

[0010] Furthermore, the lifting unit includes a guide rail and a slide slidably arranged on the guide rail, a base is provided on the end face of the slide, the surface of the base is used to fix the wheel module, the center of the base is fixed with a cylinder body, the upper end of the guide rail is connected to a bracket, and the driving end of the cylinder is fixed on the bracket.

[0011] The beneficial effects of the utility model are as follows:

[0012] Compared with the existing technology, the utility model provides a drive assembly solution that can be raised and lowered. The wheel module is integrated through the lifting unit to enable the wheel module to be adjusted up and down along the Y-axis freedom. Since the chassis of the low-profile rail vehicle is low, there are different travel requirements in the two directions of lateral and longitudinal movement. The longitudinal movement function is realized by the position of the wheel module at the lower limit position, and the longitudinal movement function is canceled by the state of the wheel module at the upper limit position. The power of the input side servo motor is transmitted through a retractable universal coupling with a flange. When the wheel module is at the upper and lower limit positions, the retractable universal coupling can adaptively compensate for its elongation in different states, so as to meet the need for power transmission during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model applied to a rail vehicle chassis;

[0015] Figure 3 This is a schematic structural diagram of the lifting unit and wheel module in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the coupling unit and the drive unit in the utility model.

[0017] Wherein: 1. Coupling unit; 11. Universal coupling; 12. Bearing seat; 13. Driven sprocket; 14. First flange;

[0018] 2. Drive unit; 21. Servo motor; 22. Motor base; 23. Driving sprocket;

[0019] 3. Lifting unit; 31. Guide rail; 32. Slide; 33. Base; 34. Cylinder; 35. Bracket;

[0020] 4. Wheelset module; 41. Bracket plate; 42. Wheelset; 43. Second flange. DETAILED DESCRIPTION

[0021] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0022] The utility model provides a liftable and transversely movable drive assembly for a rail transport vehicle, aiming to solve the problem in the prior art that it is difficult to equip two sets of drive assemblies with different travel directions under the low body of a rail vehicle, which is prone to interference.

[0023] like Figures 1 to 4 As shown, the utility model includes a coupling unit 1, the middle part of the coupling unit 1 is connected to a driving unit 2 for providing power input, the two ends of the coupling unit 1 are connected to lifting units 3 that move along the Y-axis direction, and each group of the lifting units 3 is integrated with a wheel module 4 for driving the carrier to move.

[0024] In one embodiment of the present invention, the coupling unit 1 is installed on a required carrier, which includes a universal coupling 11 and two groups of bearing seats 12 for supporting the universal coupling 11 in a fixed position. The middle part of the universal coupling 11 is rotatably arranged in two opposite groups of bearing seats 12, and the middle part of the universal coupling 11 is provided with a driven sprocket 13 that cooperates with the drive unit 2.

[0025] In one embodiment of the present invention, the universal joint 11 is a telescopic universal joint 11 , and first flanges 14 are provided at both ends thereof.

[0026] In one embodiment of the present utility model, the drive unit 2 is installed adjacent to the coupling unit 1 on the required carrier, which includes a servo motor 21 and a motor base 22. The servo motor 21 body is fixed on the motor base 22, and a driving sprocket 23 is installed at the driving end of the servo motor 21. The driving sprocket 23 is connected to the driven sprocket 13 on the universal joint 11 through a chain transmission.

[0027] In one embodiment of the present invention, each set of the wheel module 4 includes a bracket plate 41, and two sets of wheel pairs 42 are separately installed on the bracket plate 41. The adjacent wheel pairs 42 are connected by a chain drive, and the side of any one of the wheel pairs 42 is also provided with a second flange 43 connected to the coupling unit 1.

[0028] In one embodiment of the present utility model, the lifting unit 3 includes a guide rail 31 and a slide 32 slidably arranged on the guide rail 31, a base 33 is provided on the end face of the slide 32, the surface of the base 33 is used to fix the wheel module 4, the center of the base 33 is fixed with a cylinder 34 body, the upper end of the guide rail 31 is connected to a bracket 35, and the driving end of the cylinder 34 is fixed on the bracket 35.

[0029] The specific structure and working principle of the present invention are as follows: it includes two sets of wheel modules 4, which are active wheel modules connected to the drive unit 2. In an actual rail vehicle chassis, at least four sets of wheel modules are provided (the drive assembly of this invention includes two sets of active wheel modules, and in specific applications, also includes a driven wheel module on the other side of the chassis, which has the same structure); the two sets of wheel modules 4 are connected and power is transmitted through the same coupling unit 1, the middle part of the coupling unit 1 is connected to the servo motor 21 through a chain drive, and the coupling unit 1 adopts a universal telescopic coupling with a flange, including but not limited to the use of an SWC-1 integral cross-axis universal coupling 11; the lifting unit 3 includes a set of guide rails 31, a slide 32 and a cylinder 34. When the cylinder 34 is actuated, it drives a fixed base 33 The wheelset 42 on it rises and falls; in normal conditions, the liftable transverse drive assembly is stored under the vehicle chassis, and the wheel hub is arranged perpendicular to the direction of travel of the vehicle (that is, the vehicle moves laterally and the assembly movement direction of this application is longitudinal movement). At this time, the lifting unit 3 is in the upper limit position, the wheelset 42 is stored under the vehicle chassis and does not contact the ground, and the servo motor 21 does not operate; when working, that is, the vehicle needs to move longitudinally, the lifting unit 3 is in the lower limit position, the wheelset 42 is lowered to the ground to contact and lift the vehicle chassis, and the servo motor 21 operates to drive the vehicle longitudinally; in this process, the telescopic universal coupling 11 can adaptively compensate for its elongation in different states, so as to meet the need to transmit power during the lifting process. The drive assembly can be used under a low vehicle body without causing interference.

[0030] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. A liftable and transversely movable drive assembly for a rail transport vehicle, characterized by: The invention comprises a coupling unit (1), wherein the middle of the coupling unit (1) is connected to a driving unit (2) for providing power input, and the two ends of the coupling unit (1) are connected to lifting units (3) that move along the Y-axis direction, and each set of the lifting units (3) is integrated with a wheel module (4) for driving the carrier to move.

2. The liftable and transverse drive assembly for a rail transport vehicle according to claim 1, characterized in that: The coupling unit (1) is mounted on a desired carrier and comprises a universal coupling (11) and two sets of bearing seats (12) for supporting the universal coupling (11) in a fixed position. The middle portion of the universal coupling (11) is rotatably arranged in the two sets of bearing seats (12) opposite to each other. The middle portion of the universal coupling (11) is provided with a driven sprocket (13) that cooperates with the drive unit (2).

3. The liftable and transverse drive assembly for a rail transport vehicle according to claim 2, characterized in that: The universal joint (11) is a telescopic universal joint (11), and first flanges (14) are provided at both ends of the universal joint.

4. The liftable and transverse drive assembly for a rail transport vehicle according to claim 2, characterized in that: The driving unit (2) is mounted on a desired carrier adjacent to the coupling unit (1), and comprises a servo motor (21) and a motor base (22). The servo motor (21) body is fixed on the motor base (22), and a driving sprocket (23) is mounted on the driving end of the servo motor (21). The driving sprocket (23) is connected to the driven sprocket (13) on the universal coupling (11) through a chain transmission.

5. The liftable and transversely movable drive assembly for a rail transport vehicle according to claim 1, characterized in that: Each wheel module (4) includes a bracket plate (41), and two wheel pairs (42) are separately mounted on the bracket plate (41). Adjacent wheel pairs (42) are connected via a chain drive, and a second flange (43) connected to the coupling unit (1) is also provided on the side of any one of the wheel pairs (42).

6. The liftable and transversely movable drive assembly for a rail transport vehicle according to claim 1, characterized in that: The lifting unit (3) includes a guide rail (31) and a slide (32) slidably arranged on the guide rail (31); a base (33) is provided on the end surface of the slide (32); the surface of the base (33) is used to fix the wheel module (4); a cylinder (34) body is fixed at the center of the base (33); the upper end of the guide rail (31) is connected to a bracket (35); and the driving end of the cylinder (34) is fixed on the bracket (35).

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