Railway wheelset press-fitting mechanism with end surface of axle as benchmark

Abstract

The invention discloses a railway wheelset press-fitting mechanism with the end surface of an axle as a benchmark. The railway wheelset press-fitting mechanism with the end surface of the axle as the benchmark comprises a main pressure head, an auxiliary pressure head, a benchmark measuring rod, a right floating measuring rod and a left floating measuring rod, wherein the main pressure head and the auxiliary pressure head are coaxially arranged in opposite directions; the benchmark measuring rod, the right floating measuring rod and the left floating measuring rod move along a railway parallel to axes of the main pressure head and the auxiliary pressure head; the benchmark measuring rod is used for movement along with the end surface of the axle; the left floating measuring rod is used for movement along with the inner side surface of a left wheel of a wheelset; the right floating measuring rod is used for movement along with the inner side surface of a right wheel of the wheelset; the benchmark measuring rod, the right floating measuring rod and the left floating measuring rod are all perpendicular to the axes of the main pressure head and the auxiliary pressure head; first displacement sensing equipment is arranged between the benchmark measuring rod and the right floating measuring rod; and second displacement sensing equipment is arranged between the left floating measuring rod and the right floating measuring rod. The railway wheelset press-fitting mechanism with the end surface of the axle as the benchmark can reduce errors caused after a press-fitting size measuring and controlling device is stressed.

Description

technical field [0001] The invention relates to a railway wheel set pressing mechanism based on the axle end face, and belongs to the technical field of railway wheel set pressing equipment. Background technique [0002] During the press-fitting process of railway wheelsets, the distance needs to be precisely controlled to ensure that the spacing of the wheelsets meets the requirements of the standard. For example, the inner distance of the wheelsets stipulated by the national standard is 1352 mm to 1354 mm. A set of measuring mechanism is installed on the upper pull plate, and the standard wheel set is used for calibration before the wheel set is pressed. Specifically, the standard wheel set is used to determine the position of the wheel set in the space during the press-fit process of the wheel set, and it is adjusted by the control system. The data is stored, and the position confirmed by the control system is compared with the stored data during the pressing process. Ho...

AI Technical Summary

Problems solved by technology

However, during the press-fitting process of the wheelset, the pull plate and the bracket will produce displacement and deformation under high pressure, so that there is a large error between the actual press-fit data transmitted by this comparison method and the control system data; for this reason, the prior art A compensation method is usually used to deal with the error between the actual pressing data and the control system data

During the press-fitting process of the wheel set, the benchmark is set on the end face of the axle. There is an objective error in the calibration process of the standard wheel set. This error cannot be compensated, so the compensation method cannot solve the actual press-fit data and control. The system data error is too large, so that it often happens that the wheel set that has been pressed and assembled is unloaded; resulting in a great waste of manpower and material resources

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