Coupling belongs to the category of general mechanical parts, which is used to connect two shafts (driving shaft and driven shaft) in different mechanisms to make them rotate together to transmit torque. In high-speed and heavy-load power transmission, some couplings also have the functions of buffering, damping and improving the dynamic performance of shafting. The coupling consists of two halves, which are respectively connected with the driving shaft and the driven shaft. Generally, power machines are mostly connected with working machines through couplings, which are the most commonly used connecting parts for shafting transmission of mechanical products. In the late 20th century, coupling products developed rapidly at home and abroad. How to choose a coupling that can meet the requirements of the machine from a variety of couplings with different performances in product design has always been a problem that puzzles most designers.
Commonly used couplings include diaphragm coupling, tooth coupling, plum blossom coupling, slider coupling, drum tooth coupling, universal coupling, safety coupling, elastic coupling and snake spring coupling.
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A mechanical part used in different mechanisms to connect two shafts (driving shaft and driven shaft) so that they can rotate together to transmit torque. In high-speed and heavy-load power transmission, some couplings also have the functions of buffering, damping and improving the dynamic performance of shafting. The coupling consists of two halves, which are respectively connected with the driving shaft and the driven shaft. General power machines are mostly connected with working machines through couplings.