Calibration device and method for checking operating speed of elevator speed limiter

Abstract

The invention provides a verification device for the action speed of an elevator speed limiter. The verification device includes a drive speed regulation module, a motion detection module 1, and a motion detection module 2, which are used to receive the information of the motion detection module 1 and the motion detection module 2 in real time. Signal and control the data processing module of the drive speed regulation module, the speed measurement module, and the display module connected with the data processing module; the motion detection module 1 and the motion detection module 2 are respectively connected to the data processing module with signals; the drive speed regulation module and the data processing module Module signal connections. The calibration device solves the problems of inaccurate calibration, large calibration error and low calibration accuracy caused by traditional manual calibration. At the same time, the calibration device is simple to operate and easy to carry, and a calibration report can be obtained after calibration, which has wide application prospects. The invention also provides a calibration method of the calibration device, which can quickly, reliably and accurately obtain calibration results and improve the calibration quality of the elevator speed governor.

Description

technical field [0001] The invention relates to the technical field of elevator detection, and more specifically, to a detection device and a detection method for an elevator speed governor. Background technique [0002] As an important part of modern infrastructure supporting projects, elevators are closely related to national economic construction, especially the development of real estate and the improvement of people's quality of life. With the development of the economy, the number of elevators has increased rapidly. Although the relative accident rate is not high, the number of accidents still has an increasing trend. Especially, elevator stall accidents are very harmful and account for a large proportion of elevator accidents. Elevator speed limiter-safety gear linkage system is the most critical protection when the elevator stalls. Among them, the speed limiter is the safety component of the elevator. Its function is to monitor and control the speed of the car at any...

AI Technical Summary

Problems solved by technology

Since the speed limiter is generally installed on the top of the elevator machine room or the elevator shaft, it is also installed in the bottom pit, and the elevator speed limiter has various installation actions due to different manufacturers and different technical parameters. It is more complicated, so the difficulty of verifying the action speed of the speed limiter is greatly increased, and at the same time, higher requirements are put forward for the method and device to improve the verification accuracy

[0004] However, the existing speed limiter action speed verification method is still mainly manual operation, and there is only subjective measurement of the performance of the two parameters of "electrical action speed" and "mechanical action speed" required by the regulations, which cannot be quickly , Reliable and accurate measurement of relevant data, resulting in various problems such as large error in the calibration result of the speed limiter action speed, low calibration accuracy, and low calibration efficiency

This calibration has the problems of great difficulty and low precision, not only cannot reflect the calibration status of the speed limiter in time, but also cannot effectively guarantee the normal operation of the elevator speed limiter

[0005] Although a calibrator for calibrating the speed of the elevator speed limiter has been developed in China, the current calibrating instrument for the speed limiter cannot meet the requirements of real calibration due to its shortcomings such as complicated operation, large volume, and poor applicability. test requirements

Moreover, the current inspection agency requires the elevator maintenance unit to issue a verification report, and many elevator maintenance units need to spend a lot of manpower to complete it, so that the quality of the speed limiter verification cannot be guaranteed.

[0006] With the rapid growth of the number of elevators, the above difficulties are bound to become more prominent, and more potential safety hazards cannot be eliminated in time. Therefore, according to the needs of the development of special inspection work and the difficulties encountered in actual operation, how to design a The elevator overspeed governor calibration device and its calibration method with high calibration accuracy, strong versatility and easy operation have become a major technical problem to be solved urgently in the elevator inspection industry.

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