Portable laser measuring device for wheel circumference surface roughness and non-rounding abrasion

Abstract

The invention relates to a portable laser measuring device for wheel circumference surface roughness and non-rounding abrasion, a laser head (11) of a laser displacement sensor (1) is fixed on a laser head supporting seat (12); a serial port and a USB interface of the laser displacement sensor (1) are respectively connected with the serial port and the USB interface of a computer (5); and a truckle (21) of a truckle mechanism (2) is axially connected with an increment photoelectric encoder (22), and a signal output end of the increment photoelectric encoder (22) is connected with a control signal input end of the laser displacement sensor (1). The testing device can conveniently measure the surface roughness and non-rounding abrasion conditions of various wheel circumferences on the spot; the device is convenient to carry and has high degree of automation, simple and convenient operation, high control and testing precision and good reproducibility of test data.

Description

technical field [0001] The invention relates to a detection device for railway wheels. Background technique [0002] As an important running part of railway locomotives and vehicles, wheels need to safely and reliably bear loads and run quickly on rails. With the rapid development of high-speed, heavy-duty railways and urban rail transit, the requirements for wheel reliability are getting higher and higher: [0003] The circumferential non-circular wear of the wheel tread will cause a series of changes in the dynamic response of the vehicle track system, which will have a great impact on the driving stability, safety, comfort and service life of various components of the vehicle track system: 1. Short wavelength of the wheel tread The wavy non-circular wear of the wheel and rail will cause high-frequency impact loads on the wheel and rail, and the long-wavelength non-circular wear will cause an increase in the low-frequency wheel-rail contact force, resulting in damage to t...

AI Technical Summary

Problems solved by technology

[0003] The circumferential non-circular wear of the wheel tread will cause a series of changes in the dynamic response of the vehicle track system, which will have a great impact on the driving stability, safety, comfort and service life of various components of the vehicle track system: 1. Short wavelength of the wheel tread The wavy non-circular wear will cause high-frequency impact loads on the wheel and rail, and the long-wavelength non-circular wear will cause an increase in the low-frequency wheel-rail contact force, resulting in damage to the wheel-rail and vehicle unsprung structures

2. The non-circularization of the wheel circumference will also

Images