1.25-time brake experiment zero-load testing device and testing method of towing lift

Abstract

The invention relates to a 1.25-time brake experiment zero-load testing device and a testing method of a towing lift, and can solve the technical problems that the damage of 1.25-time rated experimentto the lifts is large, and risk of experiment on old lifts is high. The 1.25-time brake experiment zero-load testing device comprises a lift static testing mechanism, a lift dynamic testing mechanism, an intelligent portable terminal and special APP analysis software, wherein the intelligent portable terminal is in communication with a speed testing mechanism and a force testing device in a wireless bluetooth manner; the combination testing of the lift speed testing mechanism and the intelligent portable terminal is dynamic testing; and the combination testing of the lift static testing mechanism and the intelligent portable terminal is static testing. The 1.25-time brake experiment zero-load testing device disclosed by the invention adopts a non-loaded detection method, and has the advantages that a link of repeatedly loading and unloading weights and regulating a weighting switch is omitted, labor cost and time cost are saved, and rental charge and cartage of the weights are saved;and under the premise that the inspection quality is guaranteed, the inspection efficiency is improved, and the damage of the 1.25-time rated load experiment to the old lifts is also avoided, and therisk of the experiment is reduced.

Description

technical field [0001] The invention relates to the field of braking performance detection of a traction elevator, in particular to a no-load testing device and a testing method for a 1.25 times braking test of a traction elevator. Background technique [0002] As an important vertical transportation tool in high-rise buildings, the elevator's safe and reliable operation has become a social topic that has been widely concerned. The brake is an important safety component that ensures the normal operation of the elevator and operates most frequently. It can ensure that the motor of the elevator stops rotating without power supply, and makes the car stop effectively. Whether the elevator can run safely is closely related to the working condition of the brake. Refer to relevant elevator standards: GB7588-2003 "Safety Code for Elevator Manufacture and Installation" 12.4.2.1 requires that when the car is loaded with 125% of the rated load and running downwards at the rated speed,...

AI Technical Summary

Problems solved by technology

At present, domestic inspection agencies use the method of fixed load to test the test. After the implementation of the No. 2 revision of the new version of the inspection regulations, the load test is also required for periodic inspections. No matter who will bear the rental fee and handling fee of the weight, It is not a small fee, and the inspection is time-consuming and labor-intensive, and the efficiency is low. It can only be tested qualitatively without quantitative data.

In addition, the 1.25 times rated test will cause greater damage to the elevator, and there is a greater risk for the old elevator test

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