Why does the preload of the plum-shaped elastic coupling disappear?

Plum couplingThe plum blossom elastic spacer has multiple leaf branches. Like a slider coupling, it also squeezes the plum blossom elastic spacer and the sleeves on both sides to ensure its zero clearance performance.Different from the slider coupling, the plum blossom coupling is driven by squeezing while the slider coupling is driven by shear.When using a zero-clearance claw coupling, the user must be careful not to exceed the maximum bearing capacity of the elastic element given by the manufacturer (under the premise of ensuring zero clearance), otherwise the plum elastic spacer will be squashed and deformed Loss of elasticity, the preload disappears, resulting in the loss of zero clearance performance.
 

The selection of the connection type of the quincunx elastic coupling depends on the connection type of the main and driven ends to the shaft. Generally, the key connection is adopted, which is a unified key connection type and code. There are seven keyway types specified in GB/T3852, four For keyless connection, the A-type key is more commonly used. Select the type, type, specification (model), and select the coupling type according to the comprehensive factors such as the power machine and coupling load category, speed, and working environment; according to The coupling type is selected according to the matching of the coupling, the connection situation and other factors; the specification (model) is selected according to the nominal torque, the diameter of the shaft hole and the length of the shaft hole. In order to ensure the strength of the shaft and the key, select the coupling After the model (specification), the shaft and key strength should be checked and calculated, and the coupling model should be determined after *.

Botou XINLAN Coupling Co., Ltd. is an enterprise specializing in the research and production of couplings.Our company has a variety of equipment and strong technical force. It is a manufacturer of various types of couplings. The main products are: various star- shaped elastic couplings, tire couplings, universal couplings, drum gears Type coupling, plum-shaped elastic coupling, rigid coupling, slider coupling, roller chain coupling, diaphragm coupling, elastic sleeve pin coupling, elastic pin coupling, Elastic pin gear coupling, water pump coupling, etc.