Static simulation test system and test method for anti-falling device of lifting protection platform

Abstract

The invention relates to a static simulation test system and method for an anti-falling device of a lifting protection platform. The static simulation test system comprises a supporting frame, a moving mechanism is installed on the inner bottom face of the supporting frame, a test tool is installed on the moving mechanism, and the anti-falling device is installed on the test tool; a lifting oil cylinder is installed on the top of the supporting frame in an up-down penetrating mode, the output end of the lifting oil cylinder faces downwards and is provided with a pressing head, a pressing plate is clamped to the bottom of the pressing head, and the bottom end of the pressing plate is located over the anti-falling device. A pressure sensor is mounted between the pressure head and the output end of the lifting oil cylinder; the pressure head and the pressure plate are driven by the lifting oil cylinder to move downwards and apply force downwards to the anti-falling device on the test tool until the anti-falling device loses efficacy, and the bearing force is obtained through the pressure sensor, so that the static load simulation test of the anti-falling device is realized, the static load simulation test device is suitable for independent test of a single anti-falling device, the test is convenient, the reliability is good, and the test cost and expense are low.

Description

technical field [0001] The invention relates to the technical field of safety protection platforms for lifting operations, in particular to a static simulation test system and test method for an anti-falling device of a lifting protection platform. Background technique [0002] The attached lifting operation safety protection platform for building construction (referred to as the protection platform) is a steel structure frame assembled on the ground. high. The protective platform is mainly used by the frame, the wall support, the lifting mechanism, the anti-fall device and the control system. The protective platform surrounds the entire building, with a maximum height of 5 floors, a maximum span of 7 meters, and a maximum width of Up to 1.2 meters, the whole building has dozens of machine seats going up and down together. In order to prevent the protective platform from falling during the lifting process, the anti-fall device is the last line of defense to ensure safety, ...

AI Technical Summary

Problems solved by technology

Since the test is carried out on the sample frame, in order to test the anti-drop, at least a test sample frame with about 3 floors and tens of meters long needs to be built, which costs hundreds of thousands, and the cycle is long, occupying a lot of space

[0006] (2) It is not possible to truly assess every fall prevention device

Since the entire frame is lowered together to test all the anti-fall devices together, it is very easy to cause the descent to be out of sync due to factors such as the unevenness of the frame and the friction of each frame, the inconsistent actions of each decoupler, and the different starting times of each anti-fall device. The force of the anti-fall device is uneven, and the ability of the anti-fall device cannot be truly assessed

[0007] (3) The ultimate capacity test of the fall arrest device cannot be carried out

The sample frame is used for the no-load test, and the drop test from a static state cannot reflect the actual drop prevention ability

[0008] (4) The test is time-consuming and laborious

The test on the sample rack first requires the lifting of the rack body, the leveling of the rack body, tripping, hoist chain guide, etc., which is time-consuming and laborious

[0009] (5) Damage to the test sample frame

Every fall is an abnormal working condition and an impact, which will cause damage to the sample frame, and it is not easy to do it many times

[0010] (6) It is not convenient for the factory test of the fall arrester

As a product, the fall arrester is mass-produced, and sampling tests are required for each batch. It is obviously unrealistic to test on the test sample rack

[0011] (7) The limit destructive test cannot be carried out

The no-load test is carried out on the existing sample frame. The test load is relatively small and far less than the theoretical design load of the fall arrester. The ultimate destructive capacity needs to be loaded according to the limit value of the theoretical design load, which cannot be realized on the sample frame.

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