A new detection method of elevator weighing device based on pliers lever mechanism

Abstract

The invention discloses a novel lift weighing device detection method based on a pliers-type lever mechanism. According to the method, a lift car is required to be stopped at a non-flat layer position, the pliers-type lever mechanism in the method is used for exerting clamping force on the bottom of the lift car, and therefore the effect that a lift load is simulated at the bottom of the lift car is achieved. The pliers-type lever mechanism is composed of fixed arms and movable arms, the fixed arms and the movable arms are installed on a fixed support, the fixed arms have no motion relative to the support in the working process, and the movable arms are driven by a hydraulic system and can be connected with the support through pins and rotate relative to the support, thereby outputting the clamping force. According to the different types of lifts, different car bottom sizes of the lifts and different structures of the lifts, the fixed arms and the movable arms of the pliers-type lever mechanism are telescopic and adjustable so as to achieve the flexible function of the method. The hydraulic system is controlled by a single-chip microcomputer so as to guarantee continuous adjustable output of the clamping force. The novel lift weighing device detection method is easy to operate and simple in structure, equipment is convenient to carry, the defect that a test is conducted by carrying standard weights to reach a rated load of a lift at present is eliminated, labor force is librated, manpower and financial resources are greatly saved, and the method is suitable for detecting lift car weighing devices in annual maintenance of most lifts.

Description

technical field [0001] The invention relates to a method for detecting a weighing device placed at the bottom of an elevator car, in particular to a new method for detecting a weighing device at the bottom of an elevator car by using a pliers-type lever mechanism. Background technique [0002] Elevator is a means of transporting up and down the building with precise structure. It is an equipment integrating construction, machinery and electrical appliances. Regular systematic maintenance and standardized maintenance can not only ensure the safe and reliable operation of the elevator and prolong the service life of parts, but also It can detect faults or hidden dangers in time or in advance, thereby minimizing elevator faults and ensuring the safety performance and reliable use of equipment. [0003] According to regulations, when the load in the car exceeds the rated load (more than 10% of the rated load, and not less than 75kg), the elevator should not start to run, and at ...

AI Technical Summary

Problems solved by technology

In the actual testing process, it is often necessary to carry the standard weight to achieve the rated load of the elevator for testing, which consumes a lot of manpower and financial resources, and is inefficient

Images