Rolling stock under-floor wheel diameter measuring instrument

Abstract

The invention discloses a rolling stock under-floor wheel diameter measuring instrument, which comprises a vertical frame. The frame is provided with measuring instrument locating surfaces perpendicular to the horizontal line on both sides. An angle measuring instrument is arranged in the lower part of the front side of the frame. Locating pins are arranged symmetrically with the angle measuring instrument as the center on the left and right sides of the upper part of the frame. The locating pins extend out of the measuring instrument locating surfaces of the frame respectively. The upper endof the angle measuring instrument is connected with a swing rod at the front of the frame. The swing rod is equipped with a linear grating ruler through sliders sliding up and down along the swing rodand a linear grating ruler mounting base. A measuring head arm is arranged at the back of the top end of the linear grating ruler mounting base extending out of the frame, and the measuring head armis provided with a downward measuring head at the tail end. The problem that the vacant space for diameter measurement of an under-floor wheel is small and the measurement is very difficult due to thecomplex structure of the existing rolling stock wheel can be solved.

Description

technical field [0001] The invention relates to the technical field of manufacturing measuring instruments for locomotives, in particular to a measuring instrument for wheel diameters of locomotive wheels in the state of not being unloaded. Background technique [0002] With the increasing speed of railway operation year by year, in order to ensure the safety of railway transportation, the relevant railway departments have made stricter regulations on the wheel diameter difference of the same wheel set and the same bogie of different types of rolling stock. Perform non-drop wheel spin repairs, that is, perform rotary repairs without removing the wheelset. The increase in running speed makes the structure of the bogie more complex, and the space for measuring the wheel diameter without dropping the wheel is smaller, making the measurement more and more difficult. Therefore, it has become an important issue to improve the safety of railway transportation to use a smaller meas...

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a locomotive vehicle non-falling wheel wheel diameter measuring instrument to solve the problem that the existing locomotive wheel has a complex structure, and the space for measuring the wheel diameter of the non-falling wheel is small and the measurement is difficult.

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