Deceleration test tower of speed limiter

Abstract

The invention relates to a deceleration test tower of a speed limiter. The deceleration test tower comprises a steel structure rack (3), a speed limiter fixing unit arranged at the top of the steel structure rack (3) and used for installing a to-be-tested speed limiter (2), a tensioning wheel component arranged at the bottom of the steel structure rack (3), and a guide rail (4) vertically arrangedup and down along the steel structure rack (3); a counterweight frame (6) is arranged on the guide rail (4), an upper portion of the counterweight frame (6) is connected with a steel wire rope (5), the steel wire rope (5) sequentially bypasses a rope sheave and the tensioning wheel component of the to-be-tested speed limiter (2), and a tail end of the steel wire rope (5) is connected to a lower portion of the counterweight frame (6) to form a closed loop; a buffer mechanism (7) is arranged at the bottom of the guide rail (4), the to-be-tested speed limiter is connected with a data acquisitionunit, the counterweight frame (6) is released to fall from a high position to drive the steel wire rope (5) to move, thereby completing a deceleration test of the to-be-tested speed limiter (2). Thetest equipment is high in test precision and safe in test process.

Description

technical field [0001] The invention belongs to a test device for an elevator speed limiter, in particular to a speed limiter deceleration test tower. Background technique [0002] The elevator speed limiter is one of the safety control components in the elevator safety protection system. It monitors and controls the speed of the car at any time. When the car is overspeeded for any reason during the operation of the elevator, that is, when it reaches 115% of the rated speed of the elevator, or even falls, it can send a switch signal in time to cut off the speed of the car. The power supply circuit makes the traction machine brake. If the elevator is still unable to brake and the speed continues to increase, the speed limiter will drive the mechanical brake to force the car to stop, thus avoiding casualties and equipment damage accidents. [0003] In the deceleration test process of the elevator speed limiter, because it is difficult to simulate the actual working condition...

AI Technical Summary

Problems solved by technology

This invention is mainly used to test the pulling force and speed of the speed limiter when steel wire ropes of different diameters are used. Therefore, the device occupies a large space in order to be able to replace the steel wire ropes, and there are no auxiliary measures, resulting in troublesome replacement. There is no cushioning part at the bottom, which causes the device to be easily damaged

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