Online real-time measuring device for outer diameter of traction steel wire rope and measuring method for online real-time measuring device

Abstract

The invention provides an online real-time measuring device for the outer diameter of a traction steel wire rope. The device comprises a traction steel wire rope pre-tightening guide structure, a vernier scale measuring structure and a door-shaped framework slide structure, wherein the traction steel wire rope pre-tightening guide structure comprises a pre-tightening wheel, a pre-tightening wheelbracket, a guide wheel, a guide wheel bracket and a spring bracket; the traction steel wire rope pre-tightening guide structure presses a to-be-measured steel wire rope between the pre-tightening wheel and the guide wheel through a compression spring, the spring bracket and the pre-tightening wheel bracket; the outer diameter of the steel wire rope is worn to cause changes of the diameter size topush the pre-tightening wheel to horizontally move in a radial direction; and the guide wheel can limit a steel wire rope from horizontal shake to reduce errors caused by shock. A pre-tightening boltand a slide slot can be conveniently mounted on a steel structure, close to the steel wire rope, of an elevator machine room; and when multiple elevators steel wire ropes are arranged in parallel, theonline real-time measuring device solves the problem of measuring the diameter of the steel wire rope inside in space, and realizes online real-time measurement on the outer diameter changes of the traction elevator steel wire ropes.

Description

technical field [0001] The invention relates to the technical field of elevator safety, in particular to an online real-time measuring device and a measuring method for the outer diameter of a traction steel wire rope. Background technique [0002] At present, due to the wide application of steel wire ropes and the importance of safety in use, it is very necessary for on-site inspection of steel wire ropes. During use, the traction wire ropes will have defects such as internal and external broken wires, wear or corrosion, and due to the elongation of the surface A reduction in the rope diameter occurs. Wire rope broken wire and outer diameter change are the key parameters to evaluate the damage degree of steel wire rope. The safety regulations for the use of steel wire ropes stipulate that when the diameter of the steel wire rope is reduced to 90% of its nominal diameter, the steel wire rope shall be replaced. However, the existing detection method relies on manual measure...

AI Technical Summary

Problems solved by technology

However, the existing detection method relies on manual measurement with a wide-mouth vernier caliper, and selects a limited number of points on the steel wire rope to be tested for sampling measurement. Due to the inconsistent wear and rope diameter reduction of the entire steel wire rope on each use section, the This measurement method is unreliable, not representative, and labor-intensive, making it difficult to evaluate the test results

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