Rail vehicle wheel set size measuring instrument and method for determining optimal turning amount

Abstract

The invention discloses a rail vehicle wheel set size measuring instrument which comprises a body, a module slide guide rail arranged at the front part of the body, a motor driver coaxially connectedto the module slide guide rail, a laser displacement sensor fixed to the module slide guide rail, a grating scale which is parallelly arranged on the module slide guide rail, a ranging sensor arrangedat the back part of the body, a positioning rod arranged at the lower part of the body, an electromagnet arranged at the lower part of the body, and a power supply which is arranged in the machine and supplies power to the measuring instrument. The measuring instrument of the invention is based on the principle of laser triangulation, and the non-contact high-precision measurement of parameters such as a wheel tread shape, a rim thickness, a rim height, a qR value, a wheel wear amount, a wheel diameter and a wheel set inner distance can be achieved. The present invention also provides a method of determining an optimal turning amount by using the measuring instrument.

Description

technical field [0001] The invention relates to the technical field of rail vehicle wheel set maintenance, in particular to a rail vehicle wheel set size measuring instrument and a method for determining an optimal repair amount. Background technique [0002] The various functions of the current wheel set maintenance equipment are separated from each other and completed by different equipment, systems or operators. [0003] Parameter testing, currently the operating units mainly use testing equipment such as wheel gauges, inner distance gauges, and fourth / fifth checkers, and some operating units with advanced technology are equipped with portable digital testing equipment; [0004] Status assessment, which is assessed by the operator according to the test results and the limit requirements specified in the operation specification; [0005] Turning repair decision: The operator formulates the turning repair plan based on the operation specification and experience, and inputs...

AI Technical Summary

Problems solved by technology

[0007] (1) The traditional detection ruler has low measurement efficiency and cannot realize the measurement of the tread profile, and it is manually read and recorded, and the measurement error is greatly affected by human factors; the current digital detection is still mainly based on the detection function, and the degree of intelligence is not enough high;

[0008] (2) At present, wheel turning machine tools generally lack a scientific and effective decision-making system. The turning repair process is greatly affected by the experience of technicians, and the phenomenon of excessive turning repair is serious, resulting in fast scrapping of wheels and high maintenance costs; according to statistics, more than 70% of wheels The wear of the wheel diameter is all repaired by turning, and the wear of the wheel diameter during the operation of the vehicle is less than 30%. The research on economic turning repair is of great value

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