Types of mechanical shafts can be divided according to different classification standards, mainly including the following types:
Classification by load-bearing conditions:
Rotating shaft: It bears both bending moment and torque, and is the most common shaft in machinery, such as the shafts in various reducers.
Spindle: It only bears bending moment but does not transmit torque, and is divided into fixed spindle and rotating spindle. Fixed spindles do not rotate when working, such as the shafts of railway vehicles; rotating spindles rotate when working, such as the supporting shafts of some transmission devices.
Transmission shaft: It is mainly used to transmit torque without bearing bending moment, such as the drive shaft of a car.
Classification by structural shape:
Optical shaft: It has a simple appearance and is easy to process. It is mainly used for transmission shafts.
Step shaft: It is widely used, with different diameters in each section, and is suitable for a variety of mechanical structures.
Solid shaft and hollow shaft: Different cross-sectional forms are selected according to needs.
Classification by axis centerline shape:
Straight shaft: The most common form, used for machinery with linear motion. Crankshaft: used in reciprocating machinery, such as internal combustion engines.
Flexible shaft: can flexibly transmit rotational motion to the required position, often used in medical equipment.
These classifications help us better understand and select mechanical shafts suitable for specific application scenarios to ensure the normal operation and efficient work of mechanical equipment.
