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Method for improving radial and axial rigidity performance of rotary arm joint and rotary arm joint

A technology of axial rigidity and swivel arm, which is applied in the field of manufacturing key components of rail transit vehicles, can solve the problems of insufficient fatigue performance of swivel joints and easy fatigue of swivel joints, so as to improve fatigue performance and prevent gaps. Effect

Active Publication Date: 2018-05-15
ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to address the requirement that the existing pivoting arm nodes cannot be well adapted to the power bogies of high-speed EMUs. The product has too large longitudinal stiffness and deflection stiffness under normal working conditions, which causes the pivoting arm nodes to be easily damaged under normal working conditions. Fatigue occurs, and the fatigue performance of the rotary arm joint cannot meet the requirements. A new method for improving the radial and axial stiffness performance of the rotary arm node and the rotary arm node is proposed. This new method improves the radial and axial stiffness of the rotary arm node. The method of stiffness performance and the jib joint improves the radial and axial stiffness performance of the jib joint by changing the structure and adjustment method of the jib joint, and effectively improves the overall performance of the jib joint while ensuring the variable stiffness of the jib joint , so that the jib node meets the performance requirements of the standard EMU bogie

Method used

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  • Method for improving radial and axial rigidity performance of rotary arm joint and rotary arm joint
  • Method for improving radial and axial rigidity performance of rotary arm joint and rotary arm joint
  • Method for improving radial and axial rigidity performance of rotary arm joint and rotary arm joint

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Embodiment 1

[0037] Accompanying drawing has provided an embodiment of the present invention, as can be seen from accompanying drawing, the present invention relates to a kind of pivot arm joint of radial axial stiffness performance of high pivot arm joint, comprises the pivot arm joint jacket 1, and the pivot arm joint inner Sleeve 2, vulcanized body rubber body 3 and mandrel 4, wherein the pivot arm node outer sleeve 1 of the pivot arm node, the pivot arm node inner sleeve 2, the vulcanized body rubber body 3 is divided into two vulcanized body assemblies 5 and 6, and then combined with the core The shaft 4 is press-fitted and combined, and the two vulcanized assemblies 5 and 6 are installed on the mandrel opposite to each other. The radial pre-compression and axial pre-compression of the vulcanized rubber body 3 enables the entire arm node to implement radial pre-compression and axial pre-compression during normal operation, preventing the vulcanized rubber body 3 from being stretched ....

Embodiment 2

[0048] The structure of the second embodiment is basically the same as that of the first embodiment, except that the controlled radial and axial stiffness pens are different. A rotary arm node with high radial and axial stiffness performance of the rotary arm node includes a rotary arm node jacket, a rotary arm Node inner sleeve, vulcanized body rubber body and mandrel, wherein the arm node outer sleeve, the arm node inner sleeve and the vulcanized body rubber body of the arm node are divided into two vulcanized body assemblies, and then combined with the mandrel by pressing, The two vulcanized assemblies are installed on the mandrel opposite to each other. The characteristic is that the radial precompression and axial precompression of the vulcanized rubber body of the pivot arm node are realized through the relative positions of the pivot arm node outer sleeve and the pivot arm node inner sleeve respectively. Compression, so that the entire pivot arm node is in a radial preco...

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Abstract

The invention discloses a method for improving the radial and axial rigidity performance of a rotary arm joint. According to the position of the rotary arm joint, the rotary arm joint is divided intoa combined structure formed by compressing two vulcanized bodies with a core shaft, wherein the two vulcanized bodies are oppositely installed on the core shaft, and precompression of the volcanized rubber bodies of the rotary arm joint is achieved according to the corresponding positions of an outer casing of the rotary arm joint and an inner casing of the rotary arm joint. According to the rotary arm joint, the radial and axial rigidity of the rotary arm joint is adjusted by synchronously conducting radial compression and axial compression on the vulcanized bodies of the rotary arm joint. When the radial and axial rigidity of the rotary arm joint is adjusted by synchronously conducting radial compression and axial compression on the vulcanized bodies of the rotary arm joint, radial compression is conducted on the outer casing of the rotary arm joint to make the vulcanized rubber bodies compressed radially, and therefore radial rigidity adjustment is achieved. Meanwhile, by using theinner casing of the rotary arm joint to axially move and compress the vulcanized rubber bodies, axial rigidity adjustment is achieved.

Description

technical field [0001] The invention relates to a method and device for adjusting the performance of system components of a vehicle, in particular to a method and device for adjusting the radial and axial stiffness of a pivoting arm node of a high-speed EMU, which is mainly used for a bogie of a standard EMU in my country Rotary arm nodes in the first and second series damping systems. The invention belongs to the technical field of manufacturing key components of rail transit vehicles. Background technique [0002] In order to truly form our country's own unified high-speed rail standard technology, our country has proposed to establish China's own standard EMU since 2012. The so-called Chinese standard EMUs: referred to as standard, refers to the EMUs dominated by the Chinese standard system (among the 254 important standards, various Chinese standards account for 84%), and its functional standards and construction standards for supporting tracks are higher than those in E...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/30B61F5/08
CPCB61F5/08B61F5/305
Inventor 张玉祥肖祥龙黄江彪罗俊曾先会艾琦
Owner ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD