时间：2015-01-06 17:42　作者：admin　点击： 次

The initially selected coupling size, that is, the shaft hole diameter d and the shaft hole length L, should meet the requirements of the main and driven end shaft diameters, otherwise the coupling specifications must be adjusted according to the shaft diameter d.It is a common phenomenon that the shaft diameters of the driving and driven ends are different. When the torque and speed are the same, and the shaft diameters of the driving and driven ends are different, the coupling model should be selected according to the large shaft diameter.In the newly designed transmission system, the seven shaft hole types in accordance with GB/T3852 should be selected, and the J1 shaft hole type is recommended to improve versatility and interchangeability. The length of the shaft hole is in accordance with the coupling product standard. .
The choice of coupling connection type depends on the connection type of the main and driven ends and the shaft. Generally, a key connection is adopted, which is a unified key connection type and code. There are seven keyway types and four keyless connections specified in GB/T3852. , The most used is the A-type key.