A shaft and shaft hole alignment detection method and alignment detection device

Abstract

The invention relates to a centering detection method of a shaft and a shaft hole and a centering detection device. The method for detecting the centering of a shaft and a shaft hole according to the present invention includes the following steps: S1, emitting laser light from the opposite side of the connecting flange of the driving shaft and shooting it at the connecting flange of the driving shaft to obtain the detection circle center of the connecting flange of the driving shaft; S2, An extension tool and a light receiving piece are arranged on the drive shaft connecting flange; one end of the light receiving piece is installed on the extension tool and the axis of the driving shaft connecting flange passes through the light receiving piece, and laser light is projected onto the light receiving piece. On the receiving part and obtain the center of the extension point; S3, place the light receiving part in sequence at multiple points on the axis of the shaft hole, the laser is projected on the light receiving part, and the light receiving part rotates along the circumferential direction of the inner wall of the shaft hole The supporting structure of the driven shaft presents the center of the shaft hole detection point at the corresponding point on the light receiving element; S4, comparing the coincidence degree of the axis of the main shaft and the axis of the shaft hole. The method for detecting the centering of the shaft and the shaft hole described in the present invention has the advantage of saving time.

Description

technical field [0001] The invention relates to a centering method and device, in particular to a centering detection method and a centering detection device for a shaft and a shaft hole. Background technique [0002] Shaft operation needs to be corrected and aligned. If the shaft is bent or deformed, it needs to be aligned and corrected to avoid instability of dynamic balance and vibration, and even damage to the shaft and the connecting parts on the shaft. For ordinary shaft alignment measurement, due to the small length, conventional measurement methods can meet the requirements. However, in ships or large-scale equipment, due to the length of the shaft is very long and the diameter will be large, the conventional detection method cannot meet the needs. Therefore, in the shafting detection of ships, the methods used are relatively special. . [0003] refer to figure 1 with figure 2 , the main engine power output shaft (that is, the driving shaft) and the tail shaft (...

AI Technical Summary

Problems solved by technology

To sum up, in order to ensure the accuracy of the measurement, the measurement method of the existing technology needs repeated proofreading and adjustment, which is time-consuming and labor-intensive.

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