Requirements for the installation of diaphragm couplings

　　The diaphragm coupling adopts a 6-hole, 8-hole or 10-hole diaphragm group. As the number of holes increases, the torque that the coupling can transmit is higher, the rigidity is stronger, but the corresponding displacement deviation that can be accommodated is smaller.Diaphragm couplings rely on elastic elements and metal diaphragms to drive torque transmission. Because bolts, diaphragms and half couplings rub against each other, the coupling needs to be quenched and tempered.The diaphragm coupling is composed of two flange half couplings and a set of diaphragms that are fastened by screws to achieve rotation. The following requirements should be paid attention to when installing:

　　(1) Wipe clean the dust and dirt on the surface of the installation shaft, and apply a thin layer of engine oil or lubricant to the counterpart;

　　(2) Clean the inner hole of the diaphragm coupling and wipe it with oil or lubricant;

　　(3) Insert the diaphragm coupling into the installation shaft. If the hole diameter is too tight, please avoid hitting the installation with a hammer or hard metal;

　　(4) After the positioning is completed, first use a torque wrench (the specified tightening torque 1/4) to tighten the screws according to the diagonal direction;

　　(5) Increase the strength (1/2 of the specified tightening torque) and repeat the fourth step;

　　(6) Tighten the tightening torque according to the specified tightening torque;

　　(7) Then, tighten the fixing screws in turn in the circumferential direction;

　　(8) When disassembling, please proceed with the device stopped, and loosen the lock screws one by one.