Improved design of retaining pin device of elastic pin coupling

　　Coupling is a mechanical part used to connect two shafts (driving shaft and driven shaft) in different mechanisms to rotate together to transmit torque.In high-speed and heavy-duty power transmission, some couplings also have the function of buffering, damping and improving the dynamic performance of the shafting.The coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft.The general power machine is mostly connected with the working machine by means of a coupling.
　　Aiming at the problems in the original standard design, the author improved the design of the retaining pin structure of the LX elastic pin coupling.described as follows:
　　1. The flange hole of the left half of the coupling is designed as a reducing through hole, so that the original design of the left baffle is omitted.When changing the shaft pin, the old shaft pin can be ejected from left to right through the small hole.
　　2. Process the inner side of the right half coupling into a "fancy" stop pin structure.That is, a groove is machined inside the flange.The groove is located at the center of the circumference of the flange hole, with a width of 4mm x a depth of 8mm.
　　When replacing the new shaft pin, use 12#～14# iron wire around the groove and tie it firmly, which will act as a stop pin and replace the original baffle plate.
　　In the field, the existing LX-type elastic pin coupling can also be modified.That is to say, it is sufficient to weld on the original coupling with a processing piece similar to the "fancy" stop pin structure on the inner side of the flange, and it will not be repeated here.
　　This improved design does not change any technical parameters of the coupling.In practical applications, it has been proved that the improved design is successful. Not only does the problem of the fastening screw breakage no longer exist, but also the pin shaft can be replaced quickly, which improves the maintenance efficiency and is worthy of promotion.