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Tray type axle box body strength test device and method

A strength test and axle box technology, applied in the field of rail vehicles, can solve problems such as placement of test objects and difficulty in loading restraint fixing forces

Pending Publication Date: 2020-11-20
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This test method can effectively solve the problems of difficult placement of test objects, fixation of constraints, and loading of forces during the verification of the static strength and fatigue strength of the tray-type axle box.

Method used

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  • Tray type axle box body strength test device and method
  • Tray type axle box body strength test device and method
  • Tray type axle box body strength test device and method

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Embodiment Construction

[0102] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0103] In this article, terms such as "upper, lower, inner, outer" are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may also change accordingly depending on the drawings. It is understood as an absolute limitation on the scope of protection; moreover, relative terms such as "first" and "second" are only used to distinguish one from another component with the same name, and do not necessarily require or No such actual relationship or order between these components is implied.

[0104] Please refer to figure 1 , figure 2 , figure 1 It is a schematic structural diagram of a pallet-type axle box strength test device disclosed in an embodiment of the present inv...

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Abstract

The invention discloses a tray type axle box body strength test device and method, and the method comprises the steps: a tie spring is set between a framework and an axle box body, and the X-directionposition of an axle between two pairs of axle box bodies is restrained; the Y-direction position of the axle between the two pairs of axle boxes isrestrained; the Z-direction position of the axle between the two pairs of axle boxes on the same framework is restrained, specifically, Z-direction restraining is conducted on the first axle from the position where the wheel pair is installed on the first axle, and Z-direction restraining is conducted on the second axle from the position where the wheel pair is installed on the second axle; X-direction force or displacement is applied to the axle box body from a traction rod of the framework; Y-direction force or displacement is applied to the axle box body from the transverse stop position of the framework; Z-direction force or displacement isapplied to the axle box body from the secondary spring position of the framework. The method can effectively solve the problems that in the static strength and fatigue strength test verification working process of the tray type axle box body, a test object is difficult to place, restrain and fix, and force loading is difficult.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a device for testing the strength of a pallet-type axle box of a rail vehicle. The invention also relates to a method for testing the strength of a pallet axle box of a rail vehicle. Background technique [0002] On a rail vehicle, the part that is set on the journal to connect the wheel set and the frame frame or the body of the two-axle vehicle, referred to as the axle box, is used to transmit the weight and load of the car body to the wheel set, and at the same time lubricate the journal, Reduce friction and reduce running resistance. [0003] According to different structural forms, the axle box device can be mainly divided into two types: the pivoting arm type axle box and the tray type axle box. Since the axle box has a very important influence on the safe operation of the vehicle, it is particularly important how to test the static strength and fatigue strength of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/04
CPCG01N3/08G01N3/04G01N2203/0019G01N2203/0073G01N2203/0256G01N2203/0676G01N2203/0682
Inventor 寇福俊刘为亚刘志学李宁
Owner CRRC QINGDAO SIFANG CO LTD
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