
Gear is an important mechanical part widely used in the field of mechanical transmission. Here is a detailed introduction to it:
Definition and Function
A gear is a mechanical part composed of parts such as teeth, hubs, and spokes. It transmits power and motion through the meshing of teeth, which can change the magnitude and direction of speed and torque to meet various requirements of mechanical transmission.
Types
Classified by tooth shape: There are involute gears, cycloidal gears, circular - arc gears, etc. Among them, involute gears are the most widely used because they have the advantages of stable transmission and convenient manufacturing.
Classified by shape: It includes cylindrical gears, bevel gears, worm gears, etc. Cylindrical gears are used for transmission between parallel shafts; bevel gears are used for transmission between intersecting shafts; worm gears are used for transmission between staggered shafts.
Working Principle
Based on the tooth - shape design of the gear and the characteristics of mutual meshing, when the driving gear rotates, the power is transmitted to the driven gear through the meshing of the teeth with those of the driven gear, thus realizing the transmission of motion and power. In the transmission process, parameters such as the module and the number of teeth of the gear determine the transmission ratio, that is, the ratio of the rotational speed of the driving gear to that of the driven gear.
Application Fields
Industrial field: In various mechanical equipment such as machine tools, automobiles, ships, and aircraft, it is used to transmit power and achieve speed change, and it is the core component of the mechanical transmission system.
Daily life: It is commonly found in products such as clocks, power tools, and toys to achieve power transmission and... (The content seems to be incomplete here. If you want to add more specific information, please feel free to let me know and I will continue to improve the content for you.)










