Stay Machining of mechanical parts In process ， The driving mechanism is classified as follows ：

　　 The driving mechanism is to increase or decrease the driving force ， Or variable speed ， Or at a strict rate ， Or not to be passed to the moving parts in proportion ， Moving parts can move in a straight line 、 Rotational motion 、 A transfer mechanism for the synthesis of multiple motions or for changing the direction of motion, etc 。 The transmission mechanism that transfers and distributes the motion according to the strict ratio is called precision transmission mechanism 。 The transmission mechanism that does not transfer according to strict ratio is called power transmission mechanism 。

　　 Machining of mechanical parts The driving force of human resources 、 Animal power 、 Wind power 、 Waterpower 、 Gravitation 、 Thermal energy and power machinery, etc 。

　　 Machining of mechanical parts Motor is the main power machine of 、 Internal-combustion engine 、 Steam engine 、 Hydraulic turbine 、 Air compressor 、 Clockwork spring 、 Gossamer, etc. 。

　　 According to Machining of mechanical parts Manufactor Experience ， The transmission mechanism can be divided into ten parts ー Large class ： Gear drive 、 Chain drive 、 Friction drive 、 Multipoint meshing transmission 、 Hydraulic transmission 、 Pneumatic transmission 、 Screw drive 、 Planar linkage drive 、 Belt drive 、 Synchronous servo drive 、 Electromagnetic transmission 。