1、 Definition and function of splines

A spline is a mechanical manufacturing component, also known as a keyway or square key, which is a transmission device that connects two rotating or moving parts to work together. Its main function is to transmit torque and force, preventing the two parts from rotating relative to each other. Spline is a flower shaped mechanical component that can be arranged in a circle and continuously reused.

2、 Classification and application of splines

1. Flat key: Flat keys are mainly used in the manufacturing of small low-speed machinery, commonly used to connect bearing sleeves, pulleys, and shafts.

2. Cylindrical key: Cylindrical key is a commonly used spline, which has a wide range of applications compared to flat key. It is commonly used at the connection of lathe spindle, gearbox, and clutch.

3. Wedge key: Wedge key is mainly used in the manufacturing of large machinery, commonly used to connect wheel hubs, gears, and various clutches.

4. Slot key: Slot key is mainly used to connect two coaxial parts, commonly used to connect transmission shafts.

5. Sliding key: Sliding key is a special form of spline commonly used to connect camshafts with different linear axes.

3、 Advantages and disadvantages of splines

The advantages of splines are simple structure, easy manufacturing, convenient use, high transmission efficiency, large overlap surface, and strong torque transmission ability. But splines cannot be used in environments with fluctuating loads, and after a certain period of use, the relative position of splines will change, requiring maintenance and adjustment.

In summary, splines are one of the essential and important components in modern mechanical manufacturing, with a wide range of applications. In the selection and use of splines, corresponding design plans need to be developed based on specific mechanical requirements.