A detection device for elevator no-load balance coefficient based on hydraulic cylinder straight top type

Abstract

The invention provides an elevator no-load balance coefficient detection device based on a hydraulic cylinder direct jacking manner. The elevator no-load balance coefficient detection device comprises an upper clamp, a lower clamp, a force measuring sensor, a hydraulic cylinder, lifting rods and a pulling plate. The upper clamp is used for clamping the upper portion of a selected traction rope section; the lower clamp is used for clamping the lower portion of the selected traction rope section; a cylinder body part of the hydraulic cylinder is installed on the upper clamp; the lower end of the force measuring sensor is connected with a plunger of the hydraulic cylinder and used for measuring the pressure value of the hydraulic cylinder; the pulling plate is located above the hydraulic cylinder and is connected with the upper end of the force measuring sensor; the lower ends of the lifting rods are connected with the lower clamp, the upper ends of the lifting rods are connected with the pulling plate, and the lifting rods are used for lifting the lower clamp. A load measuring device is improved to be in the hydraulic cylinder direct jacking manner, so that in the using process, the problem of interfering in measuring results of an oil pipe can be solved due to the hydraulic cylinder direct jacking manner; and the requirement for the length of the clamped steel wire rope section can be lowered, the integral cost is reduced, the integral size is reduced, and the integral weight is reduced.

Description

technical field [0001] The invention belongs to the technical field of elevator detection. Specifically, the invention relates to an elevator no-load balance coefficient detection device based on a hydraulic cylinder straight top type. Background technique [0002] The balance factor is an important performance index of the traction drive elevator, which is related to the elevator's operating performance and the output power of the traction motor. From 2011 to 2013, China's annual newly installed elevators were: 450,000 units, 529,000 units, and 600,000 units, showing an increasing trend year by year. Among them, traction-type elevators accounted for more than 90%, and each new traction-type elevator is All parts should carry out the test and adjustment of the balance coefficient, and the balance coefficient index is qualified before it is allowed to be put into use. In addition, the decoration of the elevator by the user affects the change of the balance coefficient, and t...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of elevator no-load balance coefficient detection device based on the hydraulic cylinder straight top type, so as to solve the technical problems such as unreliability and partial load in the detection device of the prior art due to the reason of the rope and the pulley assembly, and at the same time Can solve the technical problems of heavy weight, large volume and high cost in the detection device of the prior art

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