Ever-Power Analysis of Structural Features of Metal Diaphragm Coupling

　　The metal diaphragm coupling is composed of at least one diaphragm and two shaft sleeves.The diaphragm is fastened to the shaft sleeve with a pin and generally does not loosen or cause backlash between the diaphragm and the shaft sleeve.Some manufacturers provide two diaphragms, and some provide three diaphragms, with one or two rigid elements in the middle, and the two sides are connected to the shaft sleeve.The difference between single-diaphragm coupling and double-diaphragm coupling is the ability to handle various deviations. In view of the complex bending of the diaphragm, the single-diaphragm coupling is not suitable for eccentricity.The double diaphragm coupling can bend in different directions at the same time to compensate for eccentricity.
　　The metal diaphragm coupling is a bit like a bellows coupling. In fact, the way the coupling transmits torque is similar.The diaphragm itself is very thin, so it is easy to bend when the relative displacement load is generated, so it can withstand up to 1.5 degrees of deviation, while generating a lower bearing load in the servo system.Diaphragm couplings are often used in servo systems. Diaphragms have good torque rigidity, but are slightly inferior to bellows couplings.On the other hand, the diaphragm coupling is very delicate and can be easily damaged if it is misused in use or not installed correctly.Therefore, it is very important to ensure that the deviation is within the tolerance range of the normal operation of the coupling.Choosing the right coupling is a key step to make good use of the coupling. In the design stage, you have to consider what type of coupling to choose.
　　The metal diaphragm coupling consists of several groups of diaphragms that are alternately connected to the two halves of the coupling with bolts. Each group of diaphragms is made up of several pieces. The diaphragms are divided into connecting rod type and different shapes of integral type.The diaphragm coupling relies on the elastic deformation of the diaphragm to compensate for the relative displacement of the two shafts connected. It is a high-performance flexible coupling with strong metal components. It does not require lubrication, and has a compact structure, high strength and long service life. , No rotation gap, not affected by temperature and oil pollution, acid-resistant, alkali-resistant and corrosion-resistant, suitable for shafting transmission in high temperature, high speed, and corrosive medium working conditions, and widely used for shafting transmission of various mechanical devices , Such as water pumps (especially high-power, chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation (helicopter), high-speed power transmission of ships Systems, steam turbines, piston-type power mechanical transmission systems, tracked vehicles, and high-speed, high-power mechanical transmission systems of generator sets are commonly used in high-speed transmission shafts after dynamic balance.
　　The design of the metal diaphragm coupling adopts advanced nonlinear finite element strength theory analysis, and adopts shape optimization technology and dynamic design technology on the basis of finite element analysis, and the design has reached an advanced level.The advanced and mature technological achievements of aviation are applied in manufacturing technology.
　　Compared with the gear coupling, the metal diaphragm coupling has no relative sliding, no lubrication, sealing, noise, basically no maintenance, easy to manufacture, and can partially replace the gear coupling.