There are 2 types of universal couplings

According to the relative position and position changes of the two connected shafts, it can be divided into:
①FixedCoupling.It is mainly used in places where two shafts require strict alignment and no relative displacement 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 of mobility 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 is allowed), chain coupling (radial displacement is allowed), etc. The elastic coupling uses the elastic deformation of the elastic element to compensate for the deflection and displacement of the two shafts, and the elastic element also has cushioning and damping 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.
Universal couplings have a variety of structural types, such as: cross shaft type, ball cage type, ball fork type, bump type, ball pin type, ball hinge type, ball hinge plunger type, three pin type, three fork rod type , Three ball pin type, hinge type, etc., the most commonly used is the cross shaft type, followed by the ball cage dragon. The common feature of the universal coupling is that the angular compensation is large, and there are two universal couplings of different structure types. The axis angles are not the same, generally ≤5°-45°.
 
 
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