High-stability single-shaft bogie for straddle type monorail vehicle

Abstract

The utility model relates to the technical field of straddle type monorail vehicles, and particularly discloses a high-stability single-shaft type bogie for a straddle type monorail vehicle, which comprises a connecting assembly, an independent driving motor, an air spring, a detachable mouth-shaped frame, a walking wheel, a guide wheel and a stabilizing wheel, each group of air springs is respectively sleeved on the outer surface wall of the corresponding connecting assembly, the two groups of independent driving motors are respectively and fixedly connected with the detachable mouth-shaped frame, each group of walking wheels are respectively and fixedly connected with the output end of the corresponding independent driving motor, and each group of guide wheels are respectively arranged on two sides of the detachable mouth-shaped frame. And each group of stabilizing wheels are respectively arranged on two sides of the detachable mouth-shaped frame. The bogie can bear large axial and radial loads and overturning moment at the same time, the problem that the bogie is poor in stability is effectively solved, independent disassembly and replacement can be carried out, the whole framework does not need to be replaced, the operation and maintenance cost is reduced, and the influence of faults on vehicle operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of straddle-type monorail vehicles, in particular to a high-stability single-axle bogie for straddle-type monorail vehicles. Background Art

[0002] At present, as a type of urban rail transit system with unique technology and tire-rail coupling drive, straddle-type monorail transportation has the remarkable characteristics of strong climbing ability, small turning radius, low operating noise and low engineering cost. Straddle-type monorail vehicles mainly have two typical structural types: double-axle bogies and single-axle bogies. The single-axle bogie is not only simple in structure and light in weight, but also superior to traditional double-axle or multi-axle bogies in terms of curve passing ability, wheel-rail lateral force and wear index. Compared with subway vehicles and double-axle bogie straddle-type monorail vehicles, the single-axle bogie straddle-type monorail transportation system has significant advantages in urban rail transit lines with many curves, small curve radius and medium traffic characteristics.

[0003] Due to the limited space of existing single-axle bogies, a four-link space structure consisting of a longitudinal traction rod and a transverse stabilizer bar is used between the bogie and the car body to achieve the connection between the bogie and the car body. The spatial traction rod system has low stiffness, and the force transmission process between the bogie and the car body causes the single-axle bogie straddle-type monorail vehicle to have large lateral swing and low operating stability. When the vehicle passes through a curved track beam, the lateral swing of the monorail vehicle is further aggravated, and there is a risk of instability. The lateral swing problem existing in the operation of the single-axle bogie monorail vehicle hinders the application of this type of bogie in the straddle-type monorail train.

[0004] However, in the prior art, straddle-type monorail vehicles use pneumatic rubber tires, which need to be replaced and maintained in a timely manner after excessive wear. The existing straddle-type monorail vehicle bogies use an integral frame. Limited by the motor and bogie frames, it is difficult to directly replace the running tires when disassembling the running tires. The bogie and the vehicle body must be separated before replacing the running tires and the combination of the bogie and the vehicle body. The replacement and disassembly of the running tires are complicated and the steps are cumbersome. Utility Model Content

[0005] The utility model aims to provide a high-stability single-axle bogie for a straddle-type monorail vehicle, aiming to solve the technical problems that the bogie of the straddle-type monorail vehicle in the prior art adopts an integral frame, is limited by the motor and the bogie frame, and when the running tires are disassembled, it is difficult to directly replace the running tires. The bogie and the vehicle body must be separated before replacing the running tires and the combination of the bogie and the vehicle body, and the replacement and disassembly of the running tires are complicated and the steps are cumbersome.

[0006] To achieve the above-mentioned purpose, the utility model adopts a high-stability single-axle bogie for a straddle-type monorail vehicle, comprising a connecting assembly, an independent drive motor, an air spring, a detachable die frame, a running wheel, a guide wheel and a stabilizing wheel, wherein the connecting assembly is fixedly connected to the detachable die frame and is located at the upper end of the detachable die frame, the number of the air springs is multiple groups, and each group of the air springs is respectively sleeved on the outer wall of the corresponding connecting assembly, the number of the independent drive motors is two groups, and the two groups of the independent drive motors are respectively fixedly connected to the detachable die frame and are respectively located on both sides of the detachable die frame, and the two groups of the independent drive motors are arranged oppositely, the number of the running wheels is two groups, and each group of the running wheels is respectively fixedly connected to the output end of the corresponding independent drive motor and is respectively located at one end of the corresponding independent drive motor, the number of the guide wheels is multiple groups, and each group of the guide wheels is respectively arranged on both sides of the detachable die frame, and the number of the stabilizing wheels is multiple groups, and each group of the stabilizing wheels is respectively arranged on both sides of the detachable die frame.

[0007] The high-stability single-axle bogie for the straddle-type monorail vehicle further comprises safety wheels, which are in a plurality of groups. Each group of safety wheels is rotatably connected to the detachable mouth-shaped frame and are respectively located at two ends of the detachable mouth-shaped frame.

[0008] Among them, the detachable mouth frame includes a motor support plate, a guide wheel support arm, a stabilizing wheel support arm and a safety wheel support beam. The number of the safety wheel support beams is two groups, the number of the guide wheel support arms is two groups, the two ends of the two groups of safety wheel support beams are respectively fixedly connected to the corresponding guide wheel support arms and are respectively located between the two groups of guide wheel support arms, the number of the stabilizing wheel support arms is two groups, the two groups of stabilizing wheel support arms are respectively fixedly connected to the corresponding guide wheel support arms and are respectively located on one side of the corresponding guide wheel support arms, the number of the motor support plates is two groups, the two groups of motor support plates are respectively fixedly connected to the corresponding guide wheel support arms and are respectively located on one side of the corresponding guide wheel, and each group of independent drive motors is respectively fixedly connected to the corresponding motor support plate.

[0009] Among them, each group of the safety wheel support beams includes a beam body and a flange, the number of the beam bodies is two groups, the number of the flanges is two groups, each group of the flanges is fixedly connected to the beam body, and is respectively located at one end of the corresponding beam body, and the two groups of flanges are fixedly connected by bolts.

[0010] Among them, the high-stability single-axle bogie for the straddle-type monorail vehicle also includes shock absorbers, and the number of the shock absorbers is multiple groups, and each group of the shock absorbers is fixedly connected to the corresponding motor support plate and is respectively located at the upper end of the corresponding motor support plate.

[0011] Wherein, the connecting assembly includes a slewing bearing, a slewing bearing seat and a guide shaft assembly, the slewing bearing is arranged at the upper end of the slewing bearing seat, the guide shaft assemblies are in multiple groups, and each group of guide shaft assemblies is respectively connected to the circumferential side of the slewing bearing seat.

[0012] Each group of guide shaft assemblies includes a guide column, a sleeve and a guide bushing, one end of the guide column passes through the slewing bearing seat, the guide bushing is sleeved on the outer wall of the guide column, and the sleeve is sleeved on the outer wall of the guide bushing.

[0013] The utility model has the following beneficial effects:

[0014] The utility model adopts the slewing bearing, which can bear the comprehensive load, realizes the force and moment transmission between the bogie and the car body through the slewing bearing, can bear large axial and radial loads and overturning moments at the same time, and effectively solves the problem of poor stability of the bogie. At the same time, the slewing bearing is composed of an inner ring and an outer ring, and the inner ring and the outer ring can rotate relatively to realize the appropriate deflection of the car body and the bogie;

[0015] The independent drive motor is used for drive control, allowing the inner and outer running wheels to roll at differential speeds, so that the bogie has better curve passing performance, reduces the wear difference between the inner and outer running wheels, and reduces the overall weight of the vehicle;

[0016] The movement of the slewing bearing in the Z direction is achieved by the guide column and the guide sleeve, so that the disassembly operation of the running wheel is convenient;

[0017] When replacing the running wheel, all the bolts on the flange can be removed, and the detachable mouth frame can be split into two halves and moved outward respectively, so that the running wheel can be quickly replaced, which can effectively improve the replacement efficiency of the running wheel. It can be disassembled and replaced separately without replacing the overall frame, thereby reducing operation and maintenance costs and reducing the impact of failures on vehicle operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The utility model is a structural schematic diagram of a high-stability single-axle bogie for a straddle-type monorail vehicle.

[0020] Figure 2 The utility model is a side view of a high-stability single-axle bogie for a straddle-type monorail vehicle.

[0021] Figure 3 The utility model is a front view of a high-stability single-axle bogie for a straddle-type monorail vehicle.

[0022] Figure 4 It is a structural schematic diagram of the connection assembly of the utility model.

[0023] Figure 5 It is a cross-sectional view of the internal structure of the guide shaft assembly of the utility model.

[0024] Figure 6 It is a structural schematic diagram of a detachable mouth-shaped frame of the utility model.

[0025] 1-slewing bearing, 2-slewing bearing seat, 3-guide column, 4-sleeve, 5-guide sleeve, 6-independent drive motor, 7-air spring, 8-detachable mouth frame, 9-traveling wheel, 10-guide wheel, 11-stabilizing wheel, 12-safety wheel, 13-motor support plate, 14-guide wheel support arm, 15-stabilizing wheel support arm, 16-beam body, 17-flange, 18-shock absorber. DETAILED DESCRIPTION

[0026] See also Figures 1 to 6 The utility model provides a high-stability single-axle bogie for a straddle-type monorail vehicle, comprising a connecting assembly, an independent drive motor 6, an air spring 7, a detachable mouth frame 8, a running wheel 9, a guide wheel 10 and a stabilizing wheel 11, wherein the connecting assembly is fixedly connected to the detachable mouth frame 8 and is located at the upper end of the detachable mouth frame 8, the number of the air springs 7 is multiple groups, and each group of the air springs 7 is respectively sleeved on the outer wall of the corresponding connecting assembly, the number of the independent drive motors 6 is two groups, and the two groups of the independent drive motors 6 are respectively connected to the detachable mouth frame 8. The mold frame 8 is fixedly connected and respectively located on both sides of the detachable mold frame 8, and the two groups of independent drive motors 6 are arranged opposite to each other. The number of the running wheels 9 is two groups, and each group of the running wheels 9 is respectively fixedly connected to the output end of the corresponding independent drive motor 6 and respectively located at one end of the corresponding independent drive motor 6. The number of the guide wheels 10 is multiple groups, and each group of the guide wheels 10 is respectively arranged on both sides of the detachable mold frame 8. The number of the stabilizing wheels 11 is multiple groups, and each group of the stabilizing wheels 11 is respectively arranged on both sides of the detachable mold frame 8.

[0027] Furthermore, the high-stability single-axle bogie for the straddle-type monorail vehicle also includes safety wheels 12, and the number of the safety wheels 12 is multiple groups, and each group of the safety wheels 12 is rotatably connected to the detachable mouth frame 8 and is respectively located at both ends of the detachable mouth frame 8.

[0028] Further, the detachable mouth frame 8 includes a motor support plate 13, a guide wheel support arm 14, a stabilizing wheel support arm 15 and a safety wheel support beam. The number of the safety wheel support beams is two groups, the number of the guide wheel support arms 14 is two groups, the two ends of the two groups of safety wheel support beams are respectively fixedly connected to the corresponding guide wheel support arms 14, and are respectively located between the two groups of guide wheel support arms 14. The number of the stabilizing wheel support arms 15 is two groups, the two groups of stabilizing wheel support arms 15 are respectively fixedly connected to the corresponding guide wheel support arms 14, and are respectively located on one side of the corresponding guide wheel support arms 14. The number of the motor support plates 13 is two groups, the two groups of motor support plates 13 are respectively fixedly connected to the corresponding guide wheel support arms 14, and are respectively located on one side of the corresponding guide wheel 10, and each group of the independent drive motors 6 is respectively fixedly connected to the corresponding motor support plate 13.

[0029] Furthermore, each group of the safety wheel support beams includes a beam body 16 and a flange 17, the number of the beam body 16 is two groups, the number of the flanges 17 is two groups, each group of the flanges 17 is fixedly connected to the beam body 16, and is respectively located at one end of the corresponding beam body 16, and the two groups of the flanges 17 are fixedly connected by bolts.

[0030] Furthermore, the high-stability single-axle bogie for the straddle-type monorail vehicle also includes shock absorbers 18 , and the number of the shock absorbers 18 is multiple groups, and each group of the shock absorbers 18 is fixedly connected to the corresponding motor support plate 13 and is respectively located at the upper end of the corresponding motor support plate 13 .

[0031] Furthermore, the connecting assembly includes a slewing bearing 1, a slewing bearing seat 2 and a guide shaft assembly, the slewing bearing 1 is arranged at the upper end of the slewing bearing seat 2, and the guide shaft assemblies are in multiple groups, and each group of guide shaft assemblies is respectively connected to the circumferential side of the slewing bearing seat 2.

[0032] Furthermore, each group of the guide shaft assembly includes a guide column 3, a sleeve 4 and a guide sleeve 5, one end of the guide column 3 passes through the slewing bearing seat 2, the guide sleeve 5 is sleeved on the outer wall of the guide column 3, and the sleeve 4 is sleeved on the outer wall of the guide sleeve 5.

[0033] In this embodiment, the number of axles of the bogie is reduced, which can effectively reduce the overall deadweight of the vehicle itself, improve the dynamic performance of the vehicle, and especially significantly improve the passing performance of the vehicle on curves. The side slip angle of the running wheel 9 is smaller when passing through the curve, and the loads of the guide wheel 10 and the stabilizing wheel 11 are also reduced, which can effectively reduce the wear of the running wheel 9, the guide wheel 10 and the stabilizing wheel 11, thereby achieving the purpose of reducing operating costs;

[0034] The guide column 3 can move up and down along the Z-axis direction, and the guide function of the guide column 3 and the guide sleeve 5 drives the slewing bearing 1 to realize the movement in the Z-axis direction. The slewing bearing 1 can withstand the comprehensive load, and can withstand large axial and radial loads and overturning moments at the same time, which effectively solves the problem of poor stability of the single-axis bogie. The slewing bearing 1 consists of an inner ring and an outer ring, and the inner ring and the outer ring can rotate relative to each other to realize the appropriate deflection of the car body and the bogie;

[0035] The entire detachable mouth-shaped frame 8 is arranged in a symmetrical layout. When replacing the running wheel 9, all the bolts on the flange 17 can be removed, so that the two groups of the beam bodies 16 are no longer connected. The detachable mouth-shaped frame 8 is split into two halves and moved outward respectively, so that the running wheel 9 can be replaced. Compared with the traditional replacement method, the work efficiency of tire changing can be improved. When some components fail, they can be disassembled and replaced separately without replacing the overall structure, which can effectively reduce the operation and maintenance costs and reduce the impact of failures on vehicle operation.

[0036] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A high-stability single-axle bogie for a straddle-type monorail vehicle, characterized in that: The invention comprises a connecting component, an independent driving motor, an air spring, a detachable mouth-shaped frame, a running wheel, a guide wheel and a stabilizing wheel, wherein the connecting component is fixedly connected to the detachable mouth-shaped frame and is located at the upper end of the detachable mouth-shaped frame, the number of the air springs is multiple groups, and each group of the air springs is respectively sleeved on the outer wall of the corresponding connecting component, the number of the independent driving motors is two groups, and the two groups of the independent driving motors are respectively fixedly connected to the detachable mouth-shaped frame and are respectively located on both sides of the detachable mouth-shaped frame, and the two groups of the independent driving motors are arranged opposite to each other, the number of the running wheels is two groups, and each group of the running wheels is respectively fixedly connected to the output end of the corresponding independent driving motor and is respectively located at one end of the corresponding independent driving motor, the number of the guide wheels is multiple groups, and each group of the guide wheels is respectively arranged on both sides of the detachable mouth-shaped frame, the number of the stabilizing wheels is multiple groups, and each group of the stabilizing wheels is respectively arranged on both sides of the detachable mouth-shaped frame.

2. A high-stability single-axle bogie for a straddle-type monorail vehicle as claimed in claim 1, characterized in that: The high-stability single-axle bogie for the straddle-type monorail vehicle further comprises safety wheels, which are provided in a plurality of groups. Each group of the safety wheels is rotatably connected to the detachable mouth-shaped frame and is respectively located at two ends of the detachable mouth-shaped frame.

3. A high-stability single-axle bogie for a straddle-type monorail vehicle as claimed in claim 2, characterized in that: The detachable mouth frame includes a motor support plate, a guide wheel support arm, a stabilizing wheel support arm and a safety wheel support beam. The number of the safety wheel support beams is two groups, the number of the guide wheel support arms is two groups, the two ends of the two groups of safety wheel support beams are respectively fixedly connected to the corresponding guide wheel support arms and are respectively located between the two groups of guide wheel support arms, the number of the stabilizing wheel support arms is two groups, the two groups of stabilizing wheel support arms are respectively fixedly connected to the corresponding guide wheel support arms and are respectively located on one side of the corresponding guide wheel support arms, the number of the motor support plates is two groups, the two groups of motor support plates are respectively fixedly connected to the corresponding guide wheel support arms and are respectively located on one side of the corresponding guide wheel, and each group of independent drive motors is respectively fixedly connected to the corresponding motor support plate.

4. A high-stability single-axle bogie for a straddle-type monorail vehicle as claimed in claim 3, characterized in that: Each group of the safety wheel support beams includes a beam body and a flange. There are two groups of the beam bodies and two groups of the flanges. Each group of the flanges is fixedly connected to the beam body and is located at one end of the corresponding beam body, and the two groups of flanges are fixedly connected by bolts.

5. A high-stability single-axle bogie for a straddle-type monorail vehicle as claimed in claim 4, characterized in that: The high-stability single-axle bogie for the straddle-type monorail vehicle also includes shock absorbers, which are provided in multiple groups. Each group of shock absorbers is fixedly connected to the corresponding motor support plate and is located at the upper end of the corresponding motor support plate.

6. A high-stability single-axle bogie for a straddle-type monorail vehicle as claimed in claim 5, characterized in that: The connecting assembly includes a slewing bearing, a slewing bearing seat and a guide shaft assembly. The slewing bearing is arranged at the upper end of the slewing bearing seat. The guide shaft assemblies are in multiple groups, and each group of guide shaft assemblies is respectively connected to the peripheral side of the slewing bearing seat.

7. A high-stability single-axle bogie for a straddle-type monorail vehicle as claimed in claim 6, characterized in that: Each group of guide shaft assemblies comprises a guide column, a sleeve and a guide bushing, one end of the guide column passes through the slewing bearing seat, the guide bushing is sleeved on the outer wall of the guide column, and the sleeve is sleeved on the outer wall of the guide bushing.

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