The spring knowledge in the serpentine spring coupling and the structure of the diaphragm coupling

　　The main structure of the serpentine spring coupling is composed of two half couplings, two half shells, two sealing rings and a serpentine spring sheet.A common set of serpentine spring coupling consists of two, three, and four.
　　The application of the snake spring is to embed the snake spring into the tooth grooves of the two halves of the coupling to transmit torque. The coupling uses a serpentine spring leaf to be embedded in the tooth grooves of the two halves to realize the driving shaft and the driven shaft. the link to.During operation, the driven end is driven by the axial force of the active end tooth facing the snake spring to transmit torque, which largely avoids the occurrence of resonance and the elastic variable produced by the reed when transmitting torque. , So that the mechanical system can obtain a better damping effect, with an average damping rate of more than 36%.
　　膜片联轴器结构形式是将膜片组用螺栓交叉的固定在与两半联轴器联接，螺栓孔分为4孔、6孔、8孔、10孔、12孔。膜片的形式分为连续多边环形、圆环形、分离连杆形、轮辐形、成型膜片和波形膜片。
　　The characteristics of continuous polygonal ring and circular ring: Each finished coupling should be composed of several diaphragms of equal thickness. The outer edge of each piece is arc-shaped, which has better elasticity, simple shape, convenient processing, but poor elasticity. In addition, the elasticity with a small number of sides is better than the elasticity with a large number of sides, but if the number of sides is too small, the stability will also be reduced. When one-way operation is performed, only half of the ring sides carry the transmission torque.
　　Separate connecting rod shape feature: each diaphragm is composed of a separate thin rod to form a polygon. The rod has a simple shape and is convenient to manufacture, but requires each hole pitch. Its working performance is basically the same as that of a continuous polygonal ring, but its strength and speed are lower. It is suitable for occasions where the size of the coupling is restricted.
　　The characteristics of the spoke shape: each coupling is composed of several pieces, and the screw holes on the outer and inner edges are respectively connected with the driving and driven half couplings, which are twisted during operation. The forming holes on the diaphragm are for increasing Elasticity, because elasticity requires that the difference between the inner and outer diameters should not be too small, it is generally appropriate to transmit medium and small power.
　　The characteristics of the formed diaphragm: each coupling is composed of a single diaphragm. The thickness of the diaphragm decreases regularly from the inner radial to the outer hyperbola to maintain the same strength condition. Its material utilization rate is high and the integrity is good. It is especially suitable for High-speed transmission, but the manufacturing precision of the diaphragm is high.
　　The characteristics of the corrugated diaphragm: The diaphragm is corrugated in the axial section, with high elasticity and good compensation performance.The monolithic hyperbolic type with the same thickness and unequal thickness of the diaphragm has better performance, and is currently used in many applications.