Bending fatigue testing machine for steel wire rope

Abstract

The invention discloses a bending fatigue testing machine for a steel wire rope. The bending fatigue testing machine comprises a frame and a drive wheel, a testing wheel, a guide wheel, a counterweight wheel, a drive device and a control box which are mounted on the same side of the frame, wherein the drive wheel is mounted on the upper portion of the frame, the testing wheel is located on one side of the drive wheel, the counterweight wheel is arranged below the testing wheel, the guide wheel is located between the counterweight wheel and the drive wheel, a drive rod is connected between the drive device and the drive wheel, one end of the to-be-tested steel wire rope is fixed to the drive wheel, the other end of the to-be-tested steel wire rope sequentially winds around the guide wheel, the counterweight wheel and the testing wheel to be fixed to the drive wheel, and the drive device is electrically connected with the control box. The bending fatigue testing machine is simple and compact in structure, high in testing efficiency and accurate and reliable in testing data.

Description

technical field [0001] The invention belongs to the steel wire rope performance testing technology, in particular to a steel wire rope bending fatigue testing machine. Background technique [0002] As we all know, the steel wire ropes used for the electric elevator of the door machine in the car and the steel wire ropes used for the opening and closing of the elevator door machine are characterized in use: frequent start-up, large load changes, changeable running directions, and need to bear certain vibration loads and impact loads. At present, my country is testing There are no requirements for fatigue life indicators in product standards, and there is no testing machine for corresponding testing indicators. All complete machine factories and steel wire rope manufacturing factories can only use bending fatigue testing machines, which generally occupy a large area, are relatively expensive, and are not easy to popularize and use. The shortcomings of low efficiency and some dev...

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Problems solved by technology

[0002] As we all know, the steel wire ropes used for the electric elevator of the door machine in the car and the steel wire ropes used for the opening and closing of the elevator door machine are characterized in use: frequent start-up, large load changes, changeable running directions, and need to bear certain vibration loads and impact loads. At present, my country is testing There are no requirements for fatigue life indicators in product standards, and there is no testing machine for corresponding testing indicators. All complete machine factories and steel wire rope manufacturing factories can only use bending fatigue testing machines, which generally occupy a large area, are relatively expensive, and are not easy to popularize and use. The shortcomings of low efficiency and certain deviation between test data and actual use data

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