Flexible couplingBecause of the elastic element, it can not only compensate the deviation between the two shafts, but also has the function of buffering and damping. Therefore, it is suitable for frequent starting, frequent forward and reverse rotation, variable load and high-speed operation.
The structure of the elastic sleeve pin coupling is similar to that of the flanged coupling, except that the connecting bolt is replaced by the pin with an elastic sleeve.Because the torque is transmitted through the elastic sleeve, the radial displacement and angular displacement between the two shafts can be compensated, and it has buffering and damping effects.The material of the elastic sleeve is usually oil rubber to improve its elasticity. This kind of coupling is easy to manufacture, easy to assemble and disassemble, and has a low cost. It can compensate for the comprehensive displacement, has a certain buffer and vibration absorption force, but the elastic sleeve is easy to wear and has a long life. Shorter.It is suitable for the occasions of stable load, two-way operation, frequent starting and variable load.
The elastic pin coupling uses a number of nylon pins to connect the two half couplings. In order to prevent the pins from slipping out, there is a baffle fixed with screws on the outside of the half coupling.In order to increase the amount of compensation, one end of the pin can be made into a drum shape with a radius of 2 to 4 times the diameter of the pin.This kind of coupling is similar in structure to the elastic sleeve pin coupling, but has a larger torque transmission capacity, which can compensate a certain axial displacement between the two shafts and a small amount of radial displacement and deflection angle displacement.
Tyre couplingIt uses a tire-like rubber element to connect with two half couplings with bolts. The rubber part in the tire ring is vulcanized and bonded to a frame made of low carbon steel. The threaded hole on the frame is welded with a nut for assembly. The bolts are connected with the flanges of the two half couplings, and the torque is transmitted by the friction force generated between the tire ring and the flange end surface by tightening the bolts.This kind of coupling has simple structure, convenient assembly and disassembly and maintenance, strong elasticity, large compensation ability, good damping and supplementary lubrication, but the load-bearing capacity is not high and the overall size is large.
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