There are many types of lifting platforms, which can be mainly divided into two ways: electric motor mechanical transmission and hydraulic transmission. They have their own advantages and disadvantages.
The motor-driven freight elevator is characterized by relatively low requirements for parts processing accuracy, simple structure, easy processing, convenient maintenance, strong adaptability to the environment, good impact resistance, accurate positioning, and self-locking function, which does not pollute the environment. , the disadvantage is that its mechanical wear is difficult to overcome and the vibration is large. Among them, the motor as the power source to lift the platform can be divided into the following categories:
Rope and rack and pinion
Both are the most widely used construction hoists at present, and they are hoisting machines for vertically transporting people and materials. With the vigorous development of the construction industry, various large buildings continue to increase, and the application market of construction elevators is also expanding and developing rapidly. Construction elevators can not only be used in these occasions, but also in large-scale chemical plant cooling towers, power plant chimneys, TV broadcasting towers, large bridge cranes and coal mines. Construction elevators have become an indispensable construction machinery in various industries.
Worm Gear Screw Straight Top Lifting Platform
As a basic freight elevator lifting component, it has the characteristics of compact structure, small size, light weight, no noise, convenient installation, self-locking and high reliability. For large-area lifting platforms, multi-point lifting is adopted, that is, a set of worm gear screws is installed at each vertex. The advantages are: (1) It can reduce the section size and stress of the main beam of the freight elevator, reduce its deflection, increase the rigidity of the platform itself, and improve the running stability. (2) It can reduce the force on each fulcrum of the lifting table, thereby reducing the lifting force of the worm gear screw, enhancing the stability of the pressure rod, and reducing the weight of the equipment.
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