Life testing device and testing method for elevator cables

Abstract

The invention relates to a device for detecting the service life of an elevator cable. The device comprises a plurality of temperature sensors or piezoelectric parts, the temperature sensors or the piezoelectric parts are arranged on the cable, and the piezoelectric parts can be bent freely along with the cable. The temperature sensors or the piezoelectric parts are arranged in the length direction of the cable at equal intervals and are electrically connected with a master control system of an elevator. When the elevator runs, the master control system receives piezoelectric signals generated by the piezoelectric parts or receives temperature signals uploaded by the temperature sensors; whether the portions, corresponding to the piezoelectric parts generating the piezoelectric signals or the temperature sensors uploading the temperature signals, of the cable are bent or not is judged; bending results are stored in an inner storage. Compared with the prior art, workers can check bending frequency of all parts of the cable in the master control system at any time, and the cable can be maintained and replaced conveniently in time.

Description

technical field [0001] The invention relates to an elevator, in particular to an elevator cable life detection device and detection method. Background technique [0002] Elevator, as a vertical lifting mechanism powered by a motor, is equipped with a box-shaped gondola, which can be used for multi-storey buildings to take people or carry goods. The elevator cable is used as the main device for powering the elevator, so its reliability and stability are self-evident. [0003] When the elevator is running, the elevator cable will bend in different parts as the car moves up and down. Once there is bending, it will easily cause stress deformation of the cable. If things go on like this, the cable will be damaged and it needs to be replaced. However, due to the complex structure of the elevator, it is almost impossible to detect and monitor the life of the elevator cable in actual use, so the existing practice is generally to wait for the cable to be damaged before replacing it,...

AI Technical Summary

Problems solved by technology

[0003] When the elevator is running, the elevator cable will bend in different parts as the car moves up and down. Once there is bending, it will easily cause stress deformation of the cable. If things go on like this, the cable will be damaged and need to be replaced.

However, due to the complex structure of the elevator, it is almost impossible to detect and monitor the life of the elevator cable in actual use, so the existing practice is generally to wait for the cable to be damaged before replacing it, or to replace the cable regularly

However, due to the replacement of the cable after it is damaged, the elevator cannot be put into use in time, which seriously affects the flow of passengers

And when the cable is replaced in a regular manner, it may increase the user's use and maintenance costs because the service life of the cable has not yet expired.

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