The working principle and existing problems of elastic pin coupling

　　This coupling is suitable for all kinds of transmission shafts that mechanically connect two coaxial lines, and is usually used to start frequent high and low speed motions.The nominal torque of transmission is 40～20000N.m.
　　The pin is usually made of MC nylon b, which has the ability to slightly compensate for the offset of the two axes.It is placed in the flange hole of the two halves of the coupling, and the two halves of the coupling are connected by a pin.When the wear is severe or the shearing force exceeds its force, the pin will cut off by itself to protect the equipment.
　　In order to prevent the pin from falling off, on the outside of the half coupling, two half ring baffles are fixed with screws.
　　Coupling is a component that connects two shafts axially and transmits torque and motion, and has the ability to compensate for the offset of the two shafts.On this basis, the coupling must be concentric.From a mechanical point of view, the coupling is stressed. The motor drives the coupling to rotate after powering on, and then the coupling drives the device to rotate. For couplings, concentricity is very important, otherwise It will affect the motor, etc.In the mechanical transmission, the coupling is to reduce the vibration of the mechanical transmission system and reduce the impact peak load. It should also have cushioning and shock absorption performance, and sometimes also have the function of overload protection, and the coupling is concentric, the motor power consumption is normal, and the transmission The efficiency will be very high; if the power loss increases when the coupling is not centered, the transmission efficiency will be reduced, and the current of the motor will naturally increase. This will eventually lead to the consequence that the motor may be burned.
　　The coupling is simple and reasonable in structure, convenient for maintenance, symmetrical and interchangeable on both sides, long life, allowing greater axial movement, and has the properties of cushioning, shock absorption, and wear resistance.
　　The original standard design of the retaining pin structure of the elastic pin coupling adopts the pin baffle and is fixed with screws.This makes it necessary to remove and re-tighten the baffle screws each time the pin is changed, which is more cumbersome in actual operation, and the screws are easy to break in the screw holes when tightening, so the screws often break and cannot be immediately The thorny issues dealt with sometimes even affect normal production.