The worm reducer composition and working principle

Worm reducer is a common mechanical transmission device, widely used in industrial production. It consists of a worm, a worm wheel, a bearing, a shell, etc. Through the meshing of the worm and the worm wheel, the deceleration output of high-speed input torque is realized. This paper will introduce the structure and working principle of worm reducer in detail.

1. Worm Worm is the core component of worm reducer, which is usually made of high-strength alloy steel. The worm has a spiral shape, and its spiral line meshes with the tooth surface of the worm wheel. Through the rotary motion of the worm, the high-speed rotation of the input shaft is converted into the low-speed and high-torque output of the output shaft. The manufacturing process of worm requires high precision and hardness to ensure the reliability and stability of transmission.

Second, the worm wheel is another important part of the worm reducer, usually made of cast iron or cast steel. The tooth surface of the worm gear meshes with the spiral line of the worm, and the high-speed rotation of the input shaft is transformed to the low-speed and high-torque of the output shaft through the rotation of the worm gear. The manufacturing process of worm gear also requires higher requirements, and it is necessary to ensure the hardness and accuracy of its tooth surface to ensure the stability and stability of transmission.

Third, the bearing is an important part of the worm reducer that plays a supporting and positioning role. Worm reducers usually use rolling bearings, such as cylindrical roller bearings or angular contact ball bearings, to reduce friction and energy loss during transmission. The selection and installation of bearings have an important influence on the running stability and life of worm reducer.

Fourth, the shell shell is the shell of the worm reducer, which plays the role of protecting internal parts and lubricating oil. The shell is usually made of cast iron or cast steel, which has sufficient strength and rigidity. There is also a lubricating oil pool inside the shell to lubricate the meshing parts of the worm and worm wheel, reduce friction and wear, and improve transmission efficiency and service life.

The working principle of the worm reducer is that when the input shaft drives the worm to rotate, the spiral line of the worm engages with the tooth surface of the worm wheel to make the worm wheel rotate. Because the helix angle of the worm is small, the speed of the worm wheel is low, but the torque is large. Through the meshing of worm and worm wheel, the high-speed rotation of input shaft is transformed into low-speed and high-torque of output shaft. Worm reducer has the characteristics of simple structure, large transmission ratio and stable torque output, and is widely used in various mechanical equipment.

Worm reducer consists of worm, worm wheel, bearing and shell. Through the meshing of worm and worm wheel, the high-speed rotation of input shaft is transformed into low-speed and high-torque of output shaft. Worm reducer has the advantages of simple structure, large transmission ratio and stable torque output, and is widely used in various fields of industrial production.