Device for testing bending fatigue of wire rope for elevator, and testing method thereof

Abstract

The invention discloses a device for testing the bending fatigue of a wire rope for an elevator, and a testing method thereof. The device comprises a support frame and two test mechanisms arranged on the support frame in a mirror symmetry mode and having a same structure, wherein one driving wheel and two traction sheaves in each of the test mechanism are rotatably arranged on two ends of the support frame respectively, a wire rope to be tested is sequentially wound the driving wheel, the first traction sheave, a tension wheel and the second traction sheave, two rope heads of the wire rope to be tested are respectively fixed to the driving wheel to form a ring, a loading device in each of the test mechanism is rotatably arranged on the support frame and positioned between the driving wheel and the two traction sheaves, the tension wheel is fixedly connected with the loading device, and a counterweight device in each of the test mechanism is movably arranged on one side of the support frame opposite to the driving wheel, and is connected with the loading device. The device disclosed in the invention can simulate the practical bending state of the traction wire rope for the elevator, can be used for bending fatigue tests of the wire rope under multi-tension, multi-rope-to-wheel ratio and defection angle conditions, and overcomes the shortages comprising complex driving structure, functions singleness and long test period of present wire rope bending fatigue test devices.

Description

technical field [0001] The invention relates to a material detection device and method in the technical field of elevators, in particular to a bending fatigue test device and a test method for elevator wire ropes. Background technique [0002] As an important part of the traction elevator, the wire rope plays a vital role in the operation safety of the elevator. The car and the counterweight in the elevator are connected by a steel wire rope. The movement of the steel wire rope is driven by the friction between the traction sheave groove of the main engine and the steel wire rope. The movement of the steel wire rope drives the up and down movement of the car and the counterweight. Due to the requirements of transmission and structure, there are a certain number of guide wheels and anti-rope pulleys in the elevator suspension system. These guide wheels, anti-rope pulleys, including the traction sheave will change the bending state of the wire rope all the time. It is the ben...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides an elevator wire rope bending fatigue testing device and a testing method thereof, which can simulate the bending state of the actual elevator traction wire rope, and can be used in situations of multiple tensions, multiple rope diameter ratios, and belt deflection angles. The bending fatigue test of the steel wire rope, overcomes the deficiencies of the existing steel wire rope bending fatigue testing machine, such as complex drive structure, single function, and long test period

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