Due to its compact structure, small size, flexible use, light weight, wide range of power sources, no noise, easy installation, multiple supporting forms, high reliability, multiple functions, and long service life, it is increasingly favored by users in the mechanical industry.

SWL seriesworm screw liftAlso known as QWL elevator andMachine Screw Actuator Widely used in industries such as machinery, metallurgy, construction, and water conservancy equipment, it has many functions such as lifting, lowering, pushing with auxiliary components, flipping, and adjusting various height positions.

Below are the types, specifications, and representation methods of this screw lift:

1、 Structural type:

Type 1- Axial movement of screw rod

Type 2- The screw rotates and the nut moves axially.

2、 Assembly type:

Type A - The screw (or nut) moves upwards;

B-type - screw (or nut) moves downwards

3、 Screw head type:

——The screw head of Type 1 structural type is divided into four types: Type I (cylindrical type), Type II (flange type), Type III (threaded type), and Type IV (flat head type);

——The screw head of Type 2 structural type is divided into two types: Type I (cylindrical type) and Type III (threaded type).

4、 Transmission ratio:

Elevators are divided into two transmission ratios, namely normal (P) and slow (M).

5、 Enhance carrying capacity:

There are seven types: 2.5, 5, 10, 15, 20, 25, and 35 (x10KN).

6、 Protection of screw rod:

The protection of type 1 elevator screw is divided into: basic type, anti rotation transformation (F), and protective cover type (Z);

The protection of type 2 elevator screws is divided into basic type and shielded type.

7、 SWL screw lift instructions:

1. When the pressure load of the SWL screw lift decreases, the lifting height can also increase accordingly;

2. When increasing different loads, the allowable torque, power, and speed are also different, and the higher power for different operating durations is also different;

3. Type 1 structure adopts grease lubrication, and lubricant should be replenished in a timely manner as the temperature increases;

4. Lubricants should be replaced in a timely manner during work;

Calculation of lifting speed for SWL screw lift:

Usually, SWL screw elevators have two speeds: fast and slow, which are determined by the worm gear transmission ratio

8、 Calculation of driving torque for SWL screw lift and its relationship with radial force:

Mt=9550*P/n

Note: Mt represents driving torque (N.m)

P represents driving power (KW)

N represents the rotational speed (r/min)

The worm shaft extends upwards, and the radial force Fr generated by the installation of gears, sprockets, or pulleys is related to the lifting force and model

Tip: The parameters in the table are calculated based on ￠ ≈ 30 ° or 330 °.