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Motor vertical force system test structure and manufacturing method of hanger-type force-measuring frame

A technology for testing structure and vertical force, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., can solve the problems such as the test structure and method of the vertical force system of the bogie, etc., and achieve a good quasi-static relationship. , to ensure the effect of decoupling accuracy and large response level

Active Publication Date: 2022-03-01
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the motor hanger type bogies widely used in rail vehicles, in the prior art, there is no test structure and method for the vertical force system of this type of bogies

Method used

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  • Motor vertical force system test structure and manufacturing method of hanger-type force-measuring frame
  • Motor vertical force system test structure and manufacturing method of hanger-type force-measuring frame
  • Motor vertical force system test structure and manufacturing method of hanger-type force-measuring frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] First, a rough introduction to the production process of the suspension type force measuring frame is as follows:

[0034] (1) The finite element model of the hanger-type force-measuring frame is established by using the finite element method, and the simulated load is applied to the hanger-type force-measuring frame. High resolution load identification point areas for force frames.

[0035] The present invention can determine that: if figure 1 , Figure 3-Figure 5 The typical hanger type force measuring frame shown has two beams 72 and two side beams 73, and a motor hanger 71 is connected to the outside of each beam 72, and the motor hanger 71 and the beam 72 connected thereto There are four high-resolution load identification point areas defined above, which are:

[0036] The first area is located at the position where the upper surface of the beam 72 is connected to the motor hanger 71. Specifically, several upper bolt holes 74 are provided on the upper surface of...

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PUM

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Abstract

The invention provides a motor vertical force system test structure of a hanger-type force-measuring frame and its manufacturing method, which has two side beams and two beams, and a motor hanger is welded on each beam. A high-separation load identification point area is defined on each motor hanger, and multiple strain gauges are pasted on each high-separation load identification point area and connected by a bridge, so that each motor hanger of each force-measuring frame A full-bridge circuit structure is formed, and each full-bridge circuit structure is independently decoupled, which is several times the amplification factor of the traditional test structure, and can greatly improve the measurement accuracy of the motor vertical load system test of the suspension-type force-measuring frame.

Description

technical field [0001] The invention relates to a structure for testing the motor vertical force system of a suspension type force measuring frame of a rail vehicle. Background technique [0002] For the motor hanger type bogie widely used in rail vehicles, in the prior art, there is no test structure and method for the vertical force system of this type of bogie. Contents of the invention [0003] The purpose of the present invention is to provide a test structure of the motor vertical force system of a hanger-type force-measuring frame and a manufacturing method thereof, by arranging at least one group of full-bridge circuit structures on each motor hanger of the force-measuring frame, The strain gauges on each motor hanger form a full-bridge circuit to improve test accuracy. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] A motor vertical force system test structure of a hanger-type force-measuring fram...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/1627
CPCG01L5/1627
Inventor 王斌杰孙守光刘志明李强
Owner BEIJING JIAOTONG UNIV