JSB snake spring coupling the basic characteristics

JSB snake spring coupling in the use of mechanical equipment in the process of actually belongs to a metal elastic element design of the coupling, it has the characteristics of vibration reduction, buffering and compensation. Compared with the non-metallic elastic component coupling, it has the advantages of large bearing capacity, long service life, small size and convenient maintenance, but also has the disadvantages of complex structure, high processing precision requirements, low material utilization rate, and in the process of operation, there are spring pin scattered, pin fracture, pin hole collapse and other failure defects. It has seriously affected the popularization and application of JSB snake spring coupling.

JSB snake spring coupling is mainly composed of half coupling, spoke plate, pin, spring pin, cover plate and outer simple. The spring pin is the elastic component of the coupling, which is composed of linear spring, cup sleeve, connecting rod, spacing sleeve and bushing. One end of the spring pin is directly connected with the half coupling of the driven end, and the other end is connected with the half coupling of the driven end through the spoke plate and the pin. The original design wanted to improve the force form of the spring pin and increase the bearing capacity in this way, but the column pin occupied the position of the spring pin in the structure, resulting in the reduction of the number of spring pins, but reduce the bearing capacity.

JSB serpentine spring coupling by analyzing the failure mechanism, we can now simplify the coupling structure to reduce the machining cost and installation difficulty and improve the performance of the design. JSB serpentine spring coupling in a number of pin connecting spoke plate and driven half coupling produced positioning, resulting in higher machining accuracy, difficulty, spring pin uneven force. At the same time, there is also a frame structure composed of spoke plate, pin, outer simple, driven end half coupling, resulting in a large number of coupling parts, complex structure.