Test method for measuring torsion resistance characteristic of flat elevator cable

Abstract

The invention discloses a test method for measuring the distortion resistance characteristic of a flat elevator cable. The test method comprises the following steps: taking a flat elevator cable with a flat surface as a sample, and standing for more than 24 hours at the environment temperature of 25 +/-10 DEG C; fixing the upper end of the sample line, and twisting the lower end of the sample line leftwards or rightwards to 180 degrees; hanging a load with preset weight at the lower end of the sample line for preset time; after the load is removed, measuring torsion angles of the sample line after the first interval time and the second interval time; and repeating the steps S1-S4, and when the step S2 is executed, the current twisting direction is opposite to the previous twisting direction. According to the method, the torsion resistance of the flat elevator traveling cable can be detected.

Description

technical field [0001] The invention relates to a test method for the anti-torsion characteristic of elevator cables. Background technique [0002] After the elevator cable arrives at the installation site, affected by the site conditions and the quality of the personnel, the cable is often twisted and deformed during the installation process. If the deformation is not easy to recover, it will easily lead to unstable operation of the cable after installation, resulting in hidden dangers and accidents. For example, if the distortion during the construction process cannot be recovered in time, the cable will be twisted after installation. When the cable runs with the car, it will lead to an unstable running track, and in severe cases, it will interfere with the hoistway components, resulting in serious elevator stop accidents. At the same time, it will cause damage to the cable sheath and shorten the life of the core, resulting in a decrease in the service life. At present, i...

AI Technical Summary

Problems solved by technology

[0002] After the elevator cable arrives at the installation site, affected by site conditions and personnel quality, the cable is often twisted and deformed during the installation process. If the deformation is not easy to recover, it is easy to cause the cable After installation, the running state is unstable, leading to hidden dangers and accidents

For example, if the distortion in the construction process cannot be recovered in time, the cable will be twisted after installation. When the cable runs with the car, it will lead to an unstable running track, a

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