Double Mast Aluminum Alloy Lift Platform

The following will introduce some safety protection devices of aluminum alloy lifts, and which ones need to be paid attention to whether they are running normally:

1. Anti-fall safety device for aluminum alloy lifting platform

The anti-fall safety device is an important part of the construction elevator. It is necessary to rely on it to eliminate the occurrence of cage falling accidents and ensure the safety of the occupants. Therefore, the factory test of the anti-fall safety device is very strict. Before leaving the factory, the legal inspection unit will measure its progress torque, the measurement at the critical speed, and the measurement of the spring compression. Each set is attached with a test report and assembled on the construction hoist. The drop test under the rated load is carried out later, and the lifts in use on the construction site must be subjected to a drop test every three months. For the anti-fall safety device that has been out of the factory for two years (the date of manufacture on the anti-fall safety device), it must also be sent to the statutory inspection unit for testing and testing, and then it will be tested once a year.

2. Safety switch of aerial work platform

The safety switches of the elevator are designed according to safety requirements, including fence door limit, hanging cage door limit, top door limit, limit switch, upper and lower limit switch, and anti-weight rope breaking protection switch. In some construction sites, in order to save trouble, some limit switches are artificially canceled and short-circuited or not repaired on time after damage, which is equivalent to canceling these safety lines of defense and planting hidden dangers.

3. Wear and replacement of gears and racks

The use of aluminum alloy elevators on the construction site, the operating environment is harsh, the cement, mortar, and dust cannot be eliminated and cleaned, and the gears and racks grind each other, and the teeth are sharpened and still in use, which should be paid attention to. The tooth profile should be like a cantilever beam, and when worn to a certain size, the gear (or rack) must be replaced. To what extent should you stop using it and replace it with a new one? A 25-50mm common normal micrometer can be used for measurement.

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