时间：2015-01-09 17:25　作者：admin　点击： 次

There are many types of couplings, according to the relative position and position changes of the two connected shafts, they can be divided into:
①Fixed coupling.It is mainly used in places where two shafts require strict alignment and no relative displacement occurs during work. The structure is generally simple, easy to manufacture, and the instantaneous speed of the two shafts is the same, mainly including flange couplings, sleeve couplings, and clamps Shell couplings, etc.
②Removable coupling.It is mainly used where the two shafts are deviated or have relative displacement during work. According to the method of compensating displacement, it can be divided into rigid movable coupling and elastic movable coupling.Rigid movable coupling uses the dynamic connection between the working parts of the coupling to have a certain direction or several directions to compensate, such as jaw coupling (allowing axial displacement), cross groove coupling (Used to connect two shafts with small parallel displacement or angular displacement), universal coupling (used in places where the two shafts have a large deflection angle or a large angular displacement during work), gear coupling (Comprehensive displacement allowed), chain couplings (radial displacement allowed), etc., elastic movable couplings (referred to as elastic couplings) use the elastic deformation of elastic elements to compensate for the deflection and displacement of the two shafts, and at the same time Elastic elements also have cushioning and vibration reduction properties, such as serpentine spring couplings, radial multilayer leaf spring couplings, elastic ring pin couplings, nylon pin couplings, rubber sleeve couplings, etc. .
Some couplings have been standardized.When choosing, you should first select the appropriate type according to the work requirements, and then calculate the torque and speed according to the diameter of the shaft, and then find out the applicable model from the relevant manuals, and finally make the necessary check calculations for some key parts.