A detection instrument and detection method for an elevator overload protection device

Abstract

The invention provides a detector and a detection method for an elevator overload protection device, wherein the detector includes: a suspension mechanism, including a suspension and a lifting belt for limiting the farthest distance of the suspension relative to the rope head plate The hydraulic mechanism includes a hydraulic jack and a pressure detector. The top of the adjusting screw of the hydraulic jack has a top plate for abutting against the suspension, so that the hydraulic jack uses the suspension as a support to apply a load when the hydraulic jack is working. The pressure detector is used to detect the hydraulic jack. The value of the applied load; the base plate, located below the hydraulic jack, is used to transmit the load applied by the hydraulic jack; the adjustable bushing set, located under the base plate, has a plurality of adjustable bushings, and one end of each adjustable bushing has The sleeve used for sheathing the rope head rod has an adjustment mechanism at the other end for adjusting the height of the adjustable sleeve. By adopting the invention, the overload protection device can be detected with high efficiency and high precision with reasonable structure and simple and convenient operation.

Description

technical field [0001] The invention relates to the detection field of an elevator overload protection device, in particular to a detector and a detection method of an elevator overload protection device. Background technique [0002] The elevator overload protection device is a very important safety protection device in the passenger and cargo elevators, and its detection is an important inspection item related to the safety of passengers and goods on the elevator. The General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China "Elevator Supervision Inspection and Periodic Inspection Rules - Traction and Forced Drive Elevators" stipulates that for newly installed and annual inspection elevators, loading tests should be carried out to verify the function of overload protection devices. [0003] The working principle of the elevator overload protection device: When the load in the elevator car exceeds 110% of the rated load (the ...

AI Technical Summary

Problems solved by technology

If the overload action value is too small, the elevator will prompt overload when it is not full, which reduces the use efficiency and affects the user's use; if the overload action value is too large or the overload protection device fails completely (for example, the overload protection device is damaged), it will cause the elevator to Overload operation, forming a serious safety hazard

[0005] The existing loading detection method has the following defects: since the rated load of the elevator is usually measured in tons, the total weight of the weights is relatively large and difficult to transport; during the detection process, it is necessary to manually carry the weights into the car, and end After that, the weight needs to be removed from the car

The above factors lead to the high detection cost of the existing loading detection method (for example, the rental fee of the weight, the transportation fee, etc.), the labor intensity is high, and the detection efficiency is low.

[0006] Therefore, the market urgently needs a simple and efficient detection instrument and method to replace the existing loading detection method, but through consulting domestic and foreign literature, the applicant did not find any record of a special instrument used to detect the elevator overload device

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