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Wheel-rail force testing method for bogie of three-piece truck

A test method and bogie technology, applied in the field of truck testing, can solve the problems of high production cost, long production cycle, inability to obtain wheel-rail force information, etc., to avoid errors and discrepancies with reality, reduce test costs, and achieve true test results. reliable results

Pending Publication Date: 2022-02-08
成都西交智众科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the force-measuring rail can only be distributed intermittently in some sections of the train, so it also belongs to the intermittent measurement method of the wheel-rail force. Due to the long distance of railway freight transportation, it is impossible to obtain the force of the freight train when the freight train is running on the whole road through partial rail force measurement. The wheel-rail force information cannot provide real-time warning of the safety of freight trains; the force-measuring wheel set can realize continuous measurement of the wheel-rail force due to its vehicle-mounted characteristics, but when the force-measuring wheel set is manufactured, a single wheel set needs to be removed , to carry out a series of work such as grinding, patching, bridge assembly, and calibration. The production process requires high requirements, high production costs, and a long production cycle. At the same time, when the wheel tread is greatly worn, it needs to be re-calibrated. Trains are used in large quantities, so it is necessary to find a relatively low-cost, high-precision, and continuous measurement method for testing the wheel-rail force of railway wagons

Method used

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  • Wheel-rail force testing method for bogie of three-piece truck
  • Wheel-rail force testing method for bogie of three-piece truck
  • Wheel-rail force testing method for bogie of three-piece truck

Examples

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Embodiment 1

[0048] The technical scheme that the present invention solves the problems of the technologies described above is as follows:

[0049] The invention provides a method for testing the wheel-rail force of a truck bogie with three large pieces. figure 1 As shown, the wheel-rail force test method of the three major truck trucks includes:

[0050] S1: Select multiple strain measuring points of the three major freight car bogies 2 that meet the preset conditions;

[0051] S2: According to the main force bearing mode of each of the strain measuring points, determine the bridging mode of a plurality of the strain measuring points;

[0052] S3: According to the bridge formation method, construct the bridge circuit, and obtain the three large truck bogies 2 after the bridge formation;

[0053] S4: Carry out a calibration coefficient test on the three major freight car bogies 2 after the bridge assembly;

[0054] S5: Obtain the wheel-rail force of the bogie 2 of the three large freigh...

Embodiment 2

[0076] Aiming at the deficiencies of the existing wheel-rail force testing technology, the present invention proposes a method for testing the wheel-rail force of the railway three-piece truck bogie 2 in combination with the structural characteristics of the three-piece railway truck bogie 2, through indirect measurement of the bogie dynamic The contingency method realizes continuous testing of the two-wheel-rail force of the three-size-fits-all freight car bogie. The test performance is stable, the result is reliable, and the production cost is low. It is suitable for the two-wheel-rail force test of the three-large-size freight car bogie.

[0077] The basic principle of the present invention to realize its inventive purpose is: due to factors such as track irregularities, the wheel-rail vertical force and the lateral force change, and the wheel-rail force is transmitted to the bogie through the axle box suspension system, causing the load of the bogie to change, and then The ...

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PUM

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Abstract

The invention discloses a wheel-rail force testing method for a bogie of a three-piece truck. The wheel-rail force testing method for the bogie of the three-piece truck comprises the steps of S1, selecting a plurality of strain measuring points, meeting preset conditions, of the bogie of the three-piece truck, S2, determining a bridging mode of the plurality of strain measuring points according to the main stress mode of each strain measuring point, S3, according to the bridging mode, assembling a bridge circuit, and acquiring the three-piece truck bogie after bridging, S4, carrying out a calibration coefficient test on the bogie of the three-piece truck after bridging, and S5, testing according to the calibration coefficient to obtain the wheel-rail force of the bogie of the three-piece truck.

Description

technical field [0001] The invention relates to the technical field of truck testing, in particular to a wheel-rail force testing method for a three-piece truck bogie. Background technique [0002] Due to the uneven geographical distribution of natural energy in my country, energy materials and product goods need to be transported across long distances. Railway freight has become the main force in my country's freight transportation due to its large volume and low pollution. In recent years, the speed of railway freight cars has continued to increase. The ever-increasing load has brought severe challenges to the service life of track, sleeper, roadbed and other line facilities. At the same time, the excessive axle load of trucks has aggravated the development of track geometric irregularities and further deteriorated the wheel-rail relationship, making railway trucks Safety issues such as derailment are prominent. In order to ensure the safety of railway freight transportatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00G01L5/16
CPCG01L5/00G01L5/16
Inventor 邬平波张嘉魏来曾京戴焕云王建斌
Owner 成都西交智众科技有限公司
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