Requirements for Selecting the Coupling for Connecting the Gearbox

1. According to the magnitude of the transmitted load and the speed of the shaft, due to manufacturing, installation, deformation under load, and temperature changes, it is difficult to maintain strict and accurate alignment of the two shafts after installation and adjustment, and there is a certain degree of displacement and deviation angle in the X and Y directions. When the radial displacement is large, a slider coupling can be selected, and for connections with large angular displacement or intersecting two shafts, a universal coupling can be selected. When there is a significant additional relative displacement between the two axes during the working process, a flexible coupling should be selected.

2. The type of coupling should be selected based on the working speed of the coupling and the magnitude of the centrifugal force caused. For high-speed transmission shafts, couplings with high balance accuracy, such as diaphragm couplings, should be selected instead of slider couplings with eccentricity. Once again, when selecting couplings for transmission systems with severe impact loads or requiring the elimination of torsional vibration of the shaft system, tire type couplings with high elasticity, good shock absorption cushioning, and superior inter shaft offset compensation performance can be selected, suitable for impact situations.

2. Suitable couplings can be selected based on their manufacturing, installation, maintenance, and cost. On the premise of meeting the performance requirements, couplings that are easy to assemble and disassemble, easy to maintain, and cost-effective should be selected. For example, rigid couplings not only have a simple structure but are also easy to assemble and disassemble, and can be used for low speed and high rigidity transmission shafts. General non-metallic elastic component couplings, such as elastic sleeve pin couplings, elastic pin couplings, jaw elastic couplings, etc., are widely applicable in general medium and small power transmission systems due to their excellent comprehensive capabilities.