Test device of elevator car ascending overspeed protection device

Abstract

The invention relates to a test device of an elevator car ascending overspeed protection device, which mainly solves the problem that the unified test device suitable for all the car ascending overspeed protection devices does not exist at present. The test device comprises an elevator control cabinet and an ascending overspeed protection device. The ascending overspeed protection device comprises a speed limiter and a band-type brake and further comprises a rope clamper, a car safety tong and a counterpoise safety tong, wherein the band-type brake is connected with the control cabinet, the rope clamper or the car safety tong or the counterpoise safety tong is connected to the speed limiter, a switch is arranged on the band-type brake, the speed limiter and the rope clamper or the car safety tong or the counterpoise safety tong respectively, the test device is connected between the control cabinet and the ascending overspeed protection device, the band-type brake is connected to the test device, and the switches on the band-type brake, the speed limiter and the rope clamper or the car safety tong or the counterpoise safety tong are connected to the test device respectively. The test device is suitable for testing the drag-driven elevator car ascending overspeed protection devices of all the manufacturers, and is safe and reliable in test operation and simple in test procedures.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a test device suitable for the upward overspeed protection devices of all traction-driven elevators. Background technique [0002] The traction-driven elevator car may experience overspeed in upward running under certain unexpected conditions. In such an unexpected situation, in order to ensure the safety of the elevator, a car upward overspeed protection device is installed inside the traction drive elevator. The upward car overspeed protection device of the traction elevator is generally composed of: a speed limiter plus a wire rope Rope clamp on the suspension rope or compensation rope), or the speed limiter plus the two-way safety gear acting on the car, or the speed limiter plus the safety gear acting on the counterweight, or the speed limiter plus the action Brake composition on the traction sheave. [0003] According to the "Safety Code for Elevator Manufacturing and ...

AI Technical Summary

Problems solved by technology

[0010] The present invention mainly solves the problem that there is no uniform test device suitable for all car upward overspeed protection devices, and provides a test device for car upward overspeed protection devices with automatic operation and simple operation, which is suitable for all traction-driven elevators. device

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