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End connection device of leaf spring, its installation method, and end deformation method

A technology of end connection and leaf spring, which is applied in the direction of the device for lateral relative movement between the chassis and the bogie, non-rotational vibration suppression, etc., can solve the problems of easy wear, poor reliability, roll lugs and composite material leaf springs Problems such as difficulty in molding, etc., to achieve the effect of increasing the service life

Active Publication Date: 2022-07-29
ZHUZHOU TIMES NEW MATERIALS TECH
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AI Technical Summary

Problems solved by technology

At present, due to the advantages of fiber-reinforced composite materials such as high specific strength, corrosion resistance and high fatigue life, some vehicles have begun to use composite elliptical leaf springs in batches, but it is difficult to integrally form the coil ears and composite material leaf springs. The reliability of the free sliding and rolling of the ends of the lower spring leaf is not good and it is extremely easy to wear

Method used

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  • End connection device of leaf spring, its installation method, and end deformation method
  • End connection device of leaf spring, its installation method, and end deformation method
  • End connection device of leaf spring, its installation method, and end deformation method

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Embodiment Construction

[0033] Attached to the following Figure 1-5 The present invention is described in further detail.

[0034]The end connection device of the leaf spring, wherein the leaf spring includes two upper and lower semi-elliptical spring pieces, respectively the upper spring piece 1 and the lower spring piece 2, and the leaf spring is assembled by the upper spring piece 1 and the lower spring piece 2 to form an ellipse shaped leaf spring. The end connecting device of the leaf spring includes an upper metal sleeve 5 and a lower metal seat 3 connected between the end of the upper spring sheet 1 and the end of the lower spring sheet 2. The upper metal sleeve 5 is fixed on the lower metal seat 3 and the upper metal There is a rubber bushing 4 between the sleeve 5 and the lower metal seat 3. The deformation of the rubber bushing 4 can satisfy the longitudinal displacement between the upper spring sheet 1 and the lower spring sheet 2 when under load and make the upper spring sheet 1 and the...

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Abstract

The invention belongs to the technical field of vehicle connection damping components, and discloses an end connecting device of a leaf spring, comprising an upper metal sleeve and a lower metal seat connected between the ends of the upper spring sheet and the lower spring sheet, and the upper metal sleeve is fixedly connected A rubber bushing is arranged on the lower metal seat and between the upper metal sleeve and the lower metal seat. The deformation of the rubber bushing is used to satisfy the longitudinal displacement between the upper spring sheet and the lower spring sheet under load and make the upper spring sheet and the lower The spring piece can be rotated around both ends. The invention also relates to a method for installing the end connecting device of the leaf spring and a method for deforming the end of the leaf spring.

Description

technical field [0001] The invention relates to an end connecting device of a leaf spring, in particular to an end connecting device of a series of composite material leaf springs for rail vehicles, and belongs to the technical field of vehicle connection damping components. The invention also relates to a method for installing the end connecting device of the leaf spring and a method for deforming the end of the leaf spring. Background technique [0002] Vehicles are usually used to carry passengers or transport goods. In order to ensure the comfort of passengers and the safety of goods transportation, elastic connection damping devices, semi-elliptical leaf springs and elliptical springs are usually provided between the vehicle body and the axle. As a common elastic connection damping leaf spring, leaf springs have been widely used in the connection and damping of vehicle-related components, especially in a series of composite leaf spring end connecting devices for rail ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/10F16F15/08
CPCB61F5/10F16F15/08
Inventor 张元刘波李建林李赛姚丁杨刘小芳王遵肖罗喜蔡明樊凯
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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