What kind of drive does the screw elevator use?

release time:

2022-06-01 16:34

The installation of the screw lift is very simple, and it is also very convenient to use. In particular, the choice of its driving source can be said to be very diverse.

For example, handwheel drive, pulley drive, sprocket drive, connection to reducer or direct connection of motor, etc., such a drive method determines its wide range of applications. And because its internal structure is a worm gear structure, this structure with variable speed properties can drive heavy items with a small force even with a handwheel.

The screw lift is generally driven by a motor. The same motor can drive multiple screw lifts at the same time to achieve mechanical synchronization.

So how to choose a suitable drive source for the screw elevator? Today we will focus on the selection of these handwheels and motor drive sources.

The first is the selection of the handwheel. In this case, the customer does not require too much accuracy. It only needs to make a lifting movement of the elevator, or adjust the position of the item for fine adjustment. In this case, the handwheel can be used in conjunction with the input shaft end. .


Then there is the motor, which is divided into three-phase asynchronous motor, servo motor and stepper motor.

Let's talk about the three-phase asynchronous motor first. The technician will calculate the power for you according to your specific usage, and then select the power that is 30%~40% larger than the calculated power according to the data.

Then there is the servo motor. Its starting torque is very large, which means that it starts quickly. It can reach the rated speed in a very short time, and it can start and stop frequently, so if your working environment requires very high precision, or There is a starting torque requirement, then you can choose a servo motor.

The servo motor and our company's high-precision screw lift can control the precision to 0.01mm, and its starting torque is large, and it can reach the rated speed in a short time. Its selection mainly depends on the torque data.

The latter is the stepper motor, which is small in size and suitable for projects with insufficient working conditions. It is open-loop control, and the speed can be controlled by the pulse of the driver. Compared with the servo motor, the starting of the stepper motor will be slower, because its frequency has a process from low to high, and the torque will be smaller. Therefore, in environments that do not require high-speed operation, stepper motors are a very good choice.


The performance difference of each motor is still different, so it is also a crucial part for customers to choose the drive source reasonably according to their own use environment. Understand the motor, and then choose a suitable motor. For more information, please visit our company website, Luosheng Machinery will continue to provide you with good services and products.

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