(2) Determine the working direction: Determine the rotation direction of the input shaft (worm) according to the required working direction of the output shaft. The direction of rotation of the worm and the direction of expansion and contraction of the lifting screw are similar to the relationship between the gear and the rack. If multiple elevators are used together, it is also necessary to pay attention to the direction of rotation of the commutator.
(3) Determining the stroke: After the initial stroke of the lift according to the working stroke, check the critical bending force of the push rod according to the parameters provided by the lift manufacturer. If the pressure is too large, the lead screw size needs to be increased. The usual practice is to increase the lift. The parameter specifications (the screw is increased) can also increase the screw parameter specification only when the elevator load is sufficient.
(4) Determine the working speed: According to the working cycle and load characteristics of the elevator and the elevator parameters provided by the manufacturer, check the maximum allowable speed. If the speed is too high, you need to select the elevator with large parameter specifications. When the elevator load is sufficient. Next, it is also possible to increase only the lead of the lead screw.
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