时间：2014-09-01 19:31　作者：admin　点击： 次

Commonly used clutches include jaw clutches, toothed clutches, disc friction clutches, cone friction clutches, pneumatic disc clutches and magnetic powder clutches mechanically controlled. Among the automatic control clutches are overrunning clutches, centrifugal clutches, and safety clutches.
Its characteristics are as follows:
Jaw clutch-small size, large transmission torque, the main and driven shafts have no relative sliding after engagement, and there will be impact when engaged. It is suitable for static engagement or very low relative speed. It is mainly used for the transmission shaft system of low-speed machinery.
Tooth clutch-using a pair of internal and external gears with the same number of teeth modulus, one of the wheels can move in the axial direction to achieve clutch.It is characterized by small size, large transmission torque, and two-way transmission. In order to facilitate the engagement, the gear tooth end must be rounded, which is suitable for the mechanical main engine with small speed difference, load connection, and large transmission torque. Transmission shaft system of transmission or variable speed machinery.
Disc friction clutch-using friction plate or friction plate as the joining element, the structure has many forms [single disc (plate), multiple discs (plate), dry, wet, normally open, normally closed, etc.], and its structure is compact, The transmission torque is large, the installation and adjustment are convenient, and the clutch can be engaged and disengaged at high speed, and it has a wide range of applications.
Cone friction clutch-the structure is relatively simple, the engagement force is 2/3 smaller than that of the single-disc friction clutch, and the separation is complete when disengaged. Its disadvantages are large external dimensions, large inertia when starting, and difficult axial movement of the cone disc. In the form of a double cone disc.