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Stiffness adjustable transverse elastic stopper on anti-side-roll torsion bar and stiffness adjusting method

A technology of anti-roll torsion bar and adjustment method, which is applied in the direction of the device for lateral relative movement between the underframe and the bogie, can solve the problems of elastic lateral stop buffer performance degradation, difficulty in variable stiffness, corrosion, etc., and achieve Ease of installation and removal, elimination of manufacturing tolerances, and high maintainability

Pending Publication Date: 2019-09-20
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Since the supporting ball joint needs to withstand the torsion angle of the torsion bar shaft, and then bear a certain lateral displacement, it will also cause fatigue wear of the supporting ball joint, thus affecting the service life of the supporting ball joint
[0006] 2. The torsion bar device has lateral displacement during operation, so that the torsion bar device has the risk of exceeding the vehicle limit during operation
[0007] 3. Lateral movement causes the position of the torsion bar device to change, which will lead to changes in the parameters carried by the torsion bar device, which will lead to the risk of overload failure of the parts in the torsion bar device and affect the operation safety of the train
[0008] 4. The spherical hinge of the supporting ball joint bears excessive lateral displacement, and there is a risk of the supporting ball joint falling out of the supporting seat
[0009] 5. Due to the repeated lateral movement of the torsion bar shaft (or curved torsion bar) and the supporting ball hinge, the paint protection layer of the torsion bar shaft (or curved torsion bar) will be worn off and rusted
[0013] Although the utility model with the application number 201520464924.7 also discloses an elastic lateral stopper for the roll torsion bar, it is difficult to produce variable stiffness when deformation occurs. When the torsion bar device has a lateral displacement during operation, the elastic lateral stopper When the extrusion force is large, the deformation of the elastic transverse stop will be very large, and the elastic transverse stop is prone to fatigue damage, which will reduce the cushioning performance of the elastic transverse stop

Method used

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  • Stiffness adjustable transverse elastic stopper on anti-side-roll torsion bar and stiffness adjusting method
  • Stiffness adjustable transverse elastic stopper on anti-side-roll torsion bar and stiffness adjusting method
  • Stiffness adjustable transverse elastic stopper on anti-side-roll torsion bar and stiffness adjusting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the anti-rolling torsion bar includes a torsion bar assembly 2, a support base assembly 3 and a connecting rod assembly 4. The support base assembly 3 is movably installed on the torsion bar assembly 2, and the support base assembly 3 can be opposite to the torsion bar assembly 2. Displacement, support seat assembly 3 is also fixed on the vehicle body. The torsion bar assembly 2 is installed with a support base assembly 3 and a transverse elastic stop 1 , and the transverse elastic stop 1 is located on one side of the support base assembly 3 . When the anti-roll torsion bar experiences lateral displacement, the fastening member moves laterally with the torsion bar assembly 2, thereby pressing the elastic body on the support seat assembly 3 to prevent further lateral displacement of the anti-roll torsion bar.

[0042] The lateral elastic stop 1 includes fasteners and elastic bodies, such as figure 2 As shown, the fasteners in this embodiment...

Embodiment 2

[0045] The difference between this embodiment and Embodiment 1 is that, as image 3 and Figure 4 As shown, the elastic body in this embodiment is a rubber ring 12, and the rubber ring 12 is an annular body. between. The rubber ring 12 includes a main body 121 and a split end 122 , the main body 121 is a C-shaped rubber body, one end of the main body 121 is provided with a split end 122 , and the other end of the main body 121 is provided with another split end 122 . The main body 121 and the two split ends 122 are seamlessly connected to form a whole, and the height of each split end 122 is less than or equal to half of the height of the main body 121 .

[0046] Such as image 3 As shown, when the two split ends 122 are fitted together, the rubber ring 12 can form a closed ring. Such as Figure 4 As shown, when the two split ends 122 are opened, the rubber ring 12 can be directly placed on the torsion bar assembly 2 without dismantling the anti-roll torsion bar, and can ...

Embodiment 3

[0048] The difference between this embodiment and Embodiment 1 is that, as Figure 5 , Figure 6 and Figure 7 As shown, the fastener in this embodiment includes a half-ring metal body 10 and a half-ring flange 102 , and the outer side of the half-ring metal body 10 is provided with a half-ring flange 102 extending along the height direction of the half-ring metal body 10 . The half-ring metal body 10 and the half-ring flange 102 are all semicircular, but the thickness of the half-ring metal body 10 is greater than the thickness of the half-ring flange 102, and the half-ring flange 102 is seamlessly connected to the half-ring metal body 10 outside.

[0049] In this embodiment, the elastic body is a half-ring rubber protrusion 13 , and the height of the half-ring rubber protrusion 13 is greater than the height of the half-ring flange 102 . The inner surface of the semi-ring rubber convex body 13 is an inner ring surface 131, the outer surface of the semi-ring rubber convex b...

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PUM

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Abstract

The invention provides a stiffness adjustable transverse elastic stopper on an anti-side-roll torsion bar. Supporting seat assemblies and the transverse elastic stoppers are mounted on a torsion bar assembly of the anti-side-roll torsion bar. The transverse elastic stoppers are located on one sides of the supporting seat assemblies correspondingly. Each transverse elastic stopper comprises a fastener and an elastomer. The fasteners are fixedly connected with the torsion bar assembly. The elastomers are arranged between the fasteners and the corresponding supporting seat assemblies. When the anti-side-roll torsion bar generates lateral displacement, the elastomers are squeezed by the fasteners and the supporting seat assemblies to generate deformation. The elastomers are prevented from further deforming through the fasteners and the torsion bar assembly, so that the stiffness of the elastomers increases nonlinearly. When the transverse elastic stoppers bear large squeeze force, the elastomers can be blocked by the fasteners and the torsion bar assembly from generating great deformation, and fatigue damage is not likely to occur to the elastomers. Moreover, the stiffness of the transverse elastic stopper cannot increase sharply, and the stiffness adjustable transverse elastic stopper has good buffering performance.

Description

technical field [0001] The invention relates to the technical field of an anti-rolling torsion bar system for rail vehicles, in particular to a component and method for preventing excessive lateral movement of an anti-rolling torsion bar. Background technique [0002] The vibration of the vehicle mainly has degrees of freedom in six directions: stretching vibration in the X direction, yaw vibration in the Y direction, ups and downs vibration in the Z direction, nodding vibration around the Y axis, shaking head vibration around the Z axis, and sideways vibration around the X axis. Roll vibration. The current bogies of rail transit vehicles are all two-stage suspensions, and the anti-roll torsion bar system plays a role in adjusting the roll stiffness of the vehicle and controlling the roll vibration of the vehicle. [0003] The anti-rolling torsion bar device is referred to as the torsion bar device. It is used in rail transit vehicles, such as urban rail subway vehicles, hi...

Claims

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Application Information

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IPC IPC(8): B61F5/24
CPCB61F5/24
Inventor 高发雄邹敏佳刘文松汤腾罗燕李鹏聂清明舒标
Owner ZHUZHOU TIMES NEW MATERIALS TECH