Anti-side-rolling torsion bar device suitable for small-curve operation
By adopting a radially mounted connecting rod bearing design in the anti-roll torsion bar device of light rail vehicles, the problem of excessive rotation and deflection angle of the connecting rod bearing when light rail vehicles pass through small curve radius lines is solved, thereby improving the safety and stability of the vehicle when running on small curves.
Patent Information
- Application Number
- CN202520729709.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-17
AI Technical Summary
When light rail vehicles pass through curves with small radii, the excessive rotation and deflection angle of the connecting rod bearings of the anti-roll torsion bar device can cause the device to malfunction, affecting the stability and safety of the vehicle.
The connecting rod bearing is installed radially with its inner core facing the bogie's rotation center. The design meets the displacement requirements of the car body and bogie when running on small curves. The structure, rigidity, strength, and manufacturing process of the connecting rod assembly and connecting rod bearings comply with the technical specifications for anti-roll devices.
The problem of excessive rotation and deflection angle of the connecting rod bearing when light rail vehicles pass through curves with small radii has been successfully solved, improving the safety and stability of the vehicles and ensuring that the device works normally when running on small curves.
Smart Images
Figure CN223949146U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of rail transit vehicle bogie, specifically to an anti-rolling torsion bar device suitable for small curve operation. BACKGROUND
[0002] In the field of rail transit, to ensure the stability and safety of vehicle operation, to restrain the side roll angle of the vehicle body and to reduce the flexibility coefficient of the vehicle are extremely crucial, at present, the anti-rolling torsion bar device is adopted in most rail transit vehicle bogies at home and abroad, the traditional device mainly comprises a torsion bar torsion arm device, a connecting rod device, a bearing seat device and the like, the connecting rod device of the conventional subway vehicle generally adopts an installation mode in which the center line of the connecting rod bearing is parallel to the transverse center line of the bogie, the longitudinal rotation angle of the used radial joint bearing is not limited, but the transverse rotation angle is strictly limited to ±15°.
[0003] However, the operating conditions of light rail vehicles and conventional subway vehicles are significantly different, the light rail vehicles need to frequently pass through the line with a small curve radius of R30m, while the minimum curve radius considered for the conventional subway vehicles to pass through is R110m. When the light rail vehicles run on the line with a small curve radius, the vehicle body and the bogie will produce complex relative motion, on the one hand, the vehicle body and the bogie will rotate by a large angle, causing the connecting rod set node connecting the vehicle body and the bogie to produce the maximum angular displacement, on the other hand, there is transverse motion between the vehicle body and the bogie, the two kinds of displacement jointly act on the connecting rod bearing to cause the connecting rod bearing to rotate and deflect greatly, if the design of the anti-rolling torsion bar device of the conventional subway vehicle is continued to be used, when the light rail vehicle passes through the small curve, the rotation and deflection angles of the connecting rod bearing will exceed the allowable range, resulting in that the device cannot normally work, and even causing safety hazards, which seriously affects the stability and reliability of the light rail vehicle operation. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing an anti-rolling torsion bar device suitable for small curve operation to solve the problem of excessive rotation and deflection angles of the connecting rod bearing of the anti-rolling torsion bar device when the light rail vehicle passes through the line with a small curve radius in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an anti-rolling torsion bar device suitable for small curve operation, comprising a torsion bar torsion arm device, the torsion bar torsion arm device is used for transmitting torque to resist the side roll of the vehicle body, a bearing seat device is installed on the bogie to support the torsion bar, a connecting rod device, one end of the connecting rod device is connected with the torsion bar torsion arm device, the other end is connected with the vehicle body, a connecting rod bearing is arranged at the connecting parts of the connecting rod device and the torsion bar torsion arm device and the connecting rod device and the vehicle body, the connecting rod bearing adopts a radial installation mode, and the inner core thereof faces the rotation center of the bogie.
[0006] Preferably, the horizontal installation position and the horizontal position after rotating a certain angle relative to the car body of the connecting rod device can meet the displacement requirements of the car body and the bogie when running on a small curve.
[0007] Preferably, the structure, rigidity, strength and manufacturing process of the torsion bar torsion arm device, bearing seat device, connecting rod device and connecting rod bearing meet the technical specification requirements of the anti-roll device.
[0008] Preferably, the deflection angle of the connecting rod bearing when the car body has the maximum total rotation angle and the maximum relative lateral displacement relative to the bogie is smaller than the deflection angle in the conventional installation mode, which can meet the requirements of the light rail vehicle when passing through a small curve radius line.
[0009] Preferably, after the anti-roll torsion bar device rotates 10° relative to the car body, the connecting rod device generates displacement at both ends, the longitudinal displacement is 190.5mm and 203.7mm respectively, and the lateral displacement is 92.8mm and 57.9mm respectively.
[0010] Preferably, the maximum relative lateral displacement of the car body and the bogie is 45mm, which is composed of lateral and longitudinal lateral displacement, wherein the lateral clearance is 15mm, the maximum elastic deformation is 25mm, and the maximum elastic deformation of the center pin composite spring is 5mm; the design of the connecting rod device and the connecting rod bearing can adapt to the maximum relative displacement to avoid damage or failure due to excessive relative displacement.
[0011] Compared with the prior art, the anti-roll torsion bar device for small curve operation has the following beneficial effects:
[0012] 1. The anti-roll torsion bar device for small curve operation successfully solves the problem of excessive rotation and deflection angle of the connecting rod bearing when the light rail vehicle passes through a small curve radius line by adopting the radial installation mode of the connecting rod bearing, so that the device can adapt to the operation requirements of the R30m small curve radius line, and the safety and stability of the light rail vehicle when passing through a small curve are significantly improved.
[0013] 2. The anti-roll torsion bar device for small curve operation is strictly developed and produced according to the technical specification requirements of the anti-roll device in terms of structure design, rigidity calculation, strength checking and manufacturing process, and completely meets the relevant standards, which provides reliable protection for the normal operation of the light rail vehicle.
[0014] 3. The anti-roll torsion bar device for small curve operation has been in stable operation for more than ten years, and the anti-roll torsion bar device has never appeared any problem during the period, the application effect is very stable and good, which fully proves the reliability and practicality of the anti-roll torsion bar device for small curve operation, and also provides a successful example for the design and application of the anti-roll torsion bar device for small curve operation in the rail transit industry. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the three-dimensional structure schematic view of the utility model;
[0016] Figure 2 It is the connecting rod device structure schematic view of the utility model;
[0017] Figure 3 It is the connecting rod bearing structure schematic view of the utility model;
[0018] Figure 4 It is the bearing seat device structure schematic view of the utility model.
[0019] In the figure: 1, torsion bar torsion arm device;2, bearing seat device;3, connecting rod device;4, connecting rod bearing. DETAILED DESCRIPTION
[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0021] Please refer to Figure 1 - Figure 4 The utility model provides a kind of technical scheme: a kind of anti-roll torsion bar device suitable for small curve operation, including torsion bar torsion arm device 1, torsion bar torsion arm device 1 is used to transmit torque to resist the side roll of car body, bearing seat device 2 is installed on bogie, for supporting torsion bar, connecting rod device 3, one end is connected with torsion bar torsion arm device 1, the other end is connected with car body, connecting rod bearing 4 is arranged in the connecting portion of connecting rod device 3 and torsion bar torsion arm device 1 and connecting rod device 3 and car body, connecting rod bearing 4 uses radial installation mode, and its inner core is towards the rotation center of bogie.
[0022] The horizontal installation position and the horizontal position after rotating a certain angle relative to the vehicle body of the connecting rod device 3 can meet the displacement requirements of the vehicle body and the bogie when running on a small curve, the structure, stiffness, strength and manufacturing process of the torsion bar torsion arm device 1, the bearing seat device 2, the connecting rod device 3 and the connecting rod bearing 4 meet the technical specification requirements of the anti-roll device, the deflection angle of the connecting rod bearing 4 when the vehicle body has the maximum total rotation angle and the maximum relative lateral displacement relative to the bogie is smaller than the deflection angle in the conventional installation mode, which can meet the requirements of the light rail vehicle running on a small curve radius line, the vehicle runs normally, and when the vehicle body has a lateral roll tendency, the torsion bar torsion arm device 1 works, the torsion bar is arranged transversely, and is elastically deformed under the lateral roll torsion force, the torsion arms at both ends transmit the torque to the connecting rod device 3, one end of the connecting rod device 3 is rotationally connected to the torsion arm through the connecting rod bearing 4, and the other end is connected to the vehicle body through the connecting rod bearing 4, the connecting rod bearing 4 is installed radially, the inner core faces the rotation center of the bogie, the force is stably transmitted, a reverse torque is given to the vehicle body, the lateral roll is suppressed, the lateral roll angle is reduced, and the driving is smooth.
[0023] After the anti-roll torsion bar device rotates 10° relative to the bogie, the connecting rod device 3 generates displacement at both ends, the longitudinal displacement is 190.5 mm and 203.7 mm respectively, and the lateral displacement is 92.8 mm and 57.9 mm respectively, the maximum relative lateral displacement between the vehicle body and the bogie is 45 mm, which is composed of the lateral displacement and the longitudinal displacement, the lateral clearance is 15 mm, the maximum elastic deformation is 25 mm, and the maximum elastic deformation of the center pin composite spring is 5 mm; the connecting rod device 3 and the connecting rod bearing 4 can adapt to the maximum relative lateral displacement, and damage or failure caused by excessive relative displacement can be avoided.
[0024] Working principle: when the vehicle runs normally and the vehicle body has a lateral roll tendency, the torsion bar torsion arm device 1 works, the torsion bar is arranged transversely, and is elastically deformed under the lateral roll torsion force, the torsion arms at both ends transmit the torque to the connecting rod device 3, one end of the connecting rod device 3 is rotationally connected to the torsion arm through the connecting rod bearing 4, and the other end is connected to the vehicle body through the connecting rod bearing 4, the connecting rod bearing 4 is installed radially, the inner core faces the rotation center of the bogie, the force is stably transmitted, a reverse torque is given to the vehicle body, the lateral roll is suppressed, the lateral roll angle is reduced, and the driving is smooth, curve operation adaptation mechanism: when the vehicle runs on a R30m small curve line, the vehicle body and the bogie have complex relative motion, including the maximum total rotation angle and the maximum relative lateral displacement, the maximum total rotation angle should be considered: considering the maximum total rotation angle of 10°, when the vehicle body rotates relative to the bogie, the connecting rod device 3 generates angular displacement, the connecting rod bearing 4 is installed radially, the axial displacement component is greatly reduced when the angular displacement occurs, the inner core faces the rotation center of the bogie, the force and displacement change reasonably, the connection is stable, the anti-roll torsion bar device can work continuously and effectively, and the maximum relative lateral displacement should be considered: facing the maximum relative lateral displacement of 45 mm, when the vehicle body moves laterally, the connecting rod device 3 moves accordingly, the radially installed connecting rod bearing 4 can better adapt to it, the force is evenly distributed and not easy to be damaged, the lateral displacement requirement is met, the anti-roll function is ensured, and the safe and stable operation on a small curve is ensured.
[0025] It should be pointed out finally that the above is only to illustrate the technical solutions of the present application, and is not a limit on the scope of protection of the present application, and simple modifications or equivalent replacements of the technical solutions of the present application by those skilled in the art do not deviate from the essence and scope of the technical solutions of the present application.
Claims
1. A roll-resistant torsion bar device adapted to small curve operation, comprising a torsion bar torsion arm device (1), a bearing block device (2), a connecting rod device (3) and a connecting rod bearing (4), characterized in that: The torsion bar torsion arm device (1) is used for transmitting torque to resist the side roll of the car body; the bearing seat device (2) is installed on the bogie and is used for supporting the torsion bar; one end of the connecting rod device (3) is connected with the torsion bar torsion arm device (1), and the other end is connected with the car body; the connecting rod bearing (4) is arranged at the connecting position of the connecting rod device (3) and the torsion bar torsion arm device (1) and the connecting position of the connecting rod device (3) and the car body, and the connecting rod bearing (4) adopts a radial installation mode, and the inner core thereof faces the rotation center of the bogie.
2. A roll control torsion beam device adapted for small curve operation according to claim 1, characterized in that: The horizontal installation position of the connecting rod device (3) and the horizontal position after the connecting rod device (3) rotates relative to the car body by a certain angle can meet the displacement requirements of the car body and the bogie when the car body and the bogie run on a small curve.
3. A roll control torsion beam device adapted for small curve operation according to claim 2, characterized in that: The structure, rigidity, strength and manufacturing process of the torsion bar torsion arm device (1), the bearing seat device (2), the connecting rod device (3) and the connecting rod bearing (4) meet the requirements of the technical specification of the anti-roll device.
4. A roll control torsion beam arrangement adapted for small curve operation according to claim 3, characterized in that: When the car body rotates relative to the bogie by the maximum total rotation angle and the maximum relative lateral displacement, the deflection angle of the connecting rod bearing (4) is smaller than that in the conventional installation mode, and the requirements of the light rail vehicle passing through the small curve radius line can be met.
5. A roll control torsion beam arrangement adapted for small curve operation according to claim 4, characterized in that: After the anti-roll torsion bar device rotates 10° relative to the car body, the connecting rod device (3) generates displacement at both ends, the longitudinal displacement is 190.5mm and 203.7mm respectively, and the lateral displacement is 92.8mm and 57.9mm respectively.
6. A roll control torsion beam arrangement adapted for small curve operation according to claim 5, characterized in that: The maximum relative lateral displacement between the car body and the bogie is 45mm, which is composed of the lateral displacement and the longitudinal displacement, wherein the lateral clearance is 15mm, the maximum elastic deformation is 25mm, and the maximum elastic deformation of the center pin composite spring is 5mm; the design of the connecting rod device (3) and the connecting rod bearing (4) can adapt to the maximum relative lateral displacement, and damage or failure caused by excessive relative displacement can be avoided.