Measurement method for centering coupling

Abstract

The invention discloses a measurement method for centering a coupling. The method comprises the following steps that: 1, symmetrical positions of left and right couplings are connected together by bolts; 2, a tensioning device provided with a screw rod is fixedly arranged in an erection bolt hole of the left coupling; 3) the end part of the screw rod is sleeved with a dial indicator bracket; 4, a dial indicator contacted with the circumferential surface and the end surface of the right coupling is fixedly arranged on the dial indicator bracket; 5, the couplings are turned back by 90 degrees, 180 degrees and 270 degrees from the zero position in turn to measure the circumferential clearance and the end clearance of each position respectively; and 6, the center of the coupling is adjusted according to the measured data. The measurement method has the advantages of effectively solving the problem that the measuring instrument is inaccurate due to the poor rigidity of the dial indicator bracket, outside slight vibration and shaking of the couplings in the rotating process during measurement and avoiding the influence of large diameter of the coupling and vertical deflection of the coupling from a shaft when the coupling is assembled on the centering accuracy.

Description

technical field [0001] The invention relates to the technical field of backrest wheel construction for unit installation and overhaul in equipment installation, in particular to a centering and measurement method for backrest wheels. Background technique [0002] Finding the center of the back-to-wheel (also known as the opposite wheel) is an important task in the installation and overhaul of the unit, and its quality directly affects the safe operation of the unit. The most important construction link in finding the center of the back-to-wheel is to measure the degree of shaking and drift. In the past, the traditional measurement methods have the following two methods: [0003] 1. Fix the dial indicator bracket directly on the rotating shaft of the backing wheel, so that the backing wheel has a large diameter and there is a vertical deviation from the shaft when the backing wheel is assembled, so the dial indicator is far away from the rotating shaft, and the dial indicato...

AI Technical Summary

Problems solved by technology

[0004] 2. Use equal-diameter bolts to pass through the connecting bolt holes of the back-to-wheel, and fix the dial indicator bracket on the equal-diameter bolts. This method reduces the working length of the dial indicator bracket, but there is still a problem, that is, because the connecting screw The nut must be exposed in the middle of the two back wheels, so the back wheels must be moved a certain distance to ensure the space for the nuts, and

The measurement is an indirect measurement, and there is also a certain measurement deviation

Images