drop test tower

Abstract

The invention provides a falling testing tower which comprises a base, a push oil cylinder, a push vehicle body, a buffering plate, a tower frame, heavy blocks, a testing frame, a guide shoe, an unhooking mechanism, an unhooking mechanism guiding device, guide rails, a lifting steel wire rope, a lifting device and a pump station. The falling testing tower is suitable for falling testing of safety tongs and buffers which have different strokes and different testing quality. The falling testing tower is characterized in that firstly, the unhooking mechanism can remotely released or reset or being connected with or disengaged from a lift car, people do not need to get close to the tower for operation, and due to the fact that a safety pin is adopted, safety can be ensured and operation efficiency is high; secondly, the tested buffers are hydraulically carried and are made to get close to or get away from the gravity center position of the lift car, labor force does not need to be used for carrying, and safety is ensured; and thirdly, the guiding device is provided with a braking device so that the problem that when external weight is released, the suspended steel wire rope is loosened and disengaged from a groove can be solved, the pump stations follows the drive device, and therefore the stroke of the lift car is not limited.

Description

technical field [0001] The present invention relates to a test device in the field of elevator safety, in particular to a test tower for falling, usually used for testing buffers or safety gear. Background technique [0002] The test tower is used to simulate the free fall of an elevator loaded with loads, and is suitable for safety gear or buffer drop tests of various speeds and masses. [0003] The current test tower is generally composed of a tower, a lifting device, a decoupling device, a loaded car, a guide rail, and a device under test (such as a buffer). During use, the decoupling device adopts the working mode of remote triggering and manual approach reset; the tested device is moved under the heavy object by manpower, which is less safe; if the test mass is large, when the external weight is released, it is stored in the hanging wire rope The energy will cause the decoupling device to rebound, causing the suspension wire rope to loosen, de-groove and other failures...

AI Technical Summary

Problems solved by technology

During use, the decoupling device adopts the working mode of remote triggering and manual approach reset; the tested device is moved under the heavy object by manpower, which is less safe; if the test mass is large, when the external weight is released, it is stored in the hanging wire rope The energy of the decoupling device will cause the rebound of the decoupling device, causing the suspension wire rope to slack, de-groove and other faults

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