Three - level external bevel gear transmission mechanism is selected for reducer. Transmission gear and rotating shaft are made of carbon steel, with nitriding heat treatment process, high compressive strength, good wear resistance. Each rotating shaft is supported by roller bearing, with automobile oil wetting, transmission system balance, high efficiency. The shell and the machine cover are sealed with "O" type acid and alkali resistant silica gel ring to ensure no water leakage.

The lifting motor adopts the conical motor rotor motor with braking equipment. Radial magnetic tension occurs to the conical motor rotor after wiring, and the magnetic tension of the clutch jack is designed to get rid of the working pressure of the torsion spring, so that the rear end cover of the fan brake wheel is loosened, and the motor runs normally.

After the power is turned off, the magnetic pull dissipates. Under the effect of working pressure of torsion spring, the rear cover of mechanical jack is designed to brake the fan brake wheel. The cone brake ring riveted to the fan brake wheel is made of stone floss epoxy resin, reliable braking and good wear resistance. Fan brake wheel is equipped with leaves, blowing fan heat effect.

When the brake ring is too damaged or damaged, it should be replaced immediately. When it is replaced, the brake ring is clamped in the fan brake wheel and cannot be loosened. The global surface of the brake is polished by production and processing to make the spherical surface of the back end cover touch well, so as to ensure the reliability of the brake.