ON-LINE DETECTION DEVICE AND METHOD FOR TENSION OF SUSPENSION ROPES OR STABILISING ROPES IN CONSTRUCTION VERTICAL SHAFT

摘要

Disclosed is an on-line detection device for the tension of suspension ropes (2) or stabilising ropes (3) in a construction vertical shaft, the device mainly being composed of tension detection devices (4) arranged on masts (6) and a steel wire rope frequency detection portion arranged on the surface of a shaft opening. The tension detection devices mainly comprise inclined surface supports (4-3) fixed on the masts (6) of sheaves (5), pressure sensors (4-2) fixedly mounted on inclined surfaces of the inclined surface supports (4-3) and bearing supports (4-1) fixedly connected to the pressure sensors (4-2). The steel wire rope frequency detection portion mainly comprises frequency detection devices (7) and a signal collector used for collecting frequency signals. The propagation frequency of vibration waves on a steel wire rope is periodically detected via a steel wire rope frequency detection device (7) arranged on a shaft cover platform (8), and the tension of the steel wire rope is obtained via the steel wire rope length 1 and the rope density ?, effectively preventing measurement errors caused by an overturning moment of a bearing base, and thereby correcting the pressure sensor. The on-line detection device is simple in structure, convenient to operate, capable of real-time detection and easy to install, removal of the stabilising ropes is not necessary, measurement is accurate, and signal transmission is convenient. Also disclosed is an on-line detection method for the tension of the suspension ropes (2) or the stabilising ropes (3) in the construction vertical shaft using the on-line detection device.