Abstract
In planetary cycloid gears the motion is transmitted simultaneously to many pin-rollers and teeth of cycloid disk. The use of schemes with many parallel contacts requires measures to ensure the assembly of the gears due to the introduction of malleable elements or guaranteed gaps in the contacts into the design. In the paper the analytical decision of the problem of the gap impact in gearing of planetary cycloid gear to the load distribution on the teeth of the cycloid disk, the maximum forces acting on them and friction losses in the contact of the teeth of the cycloid disk and pin-rollers is reviewed. The calculated dependences for the coefficients of the load increase due to the gaps and the effect of the gaps in the gearing on the losses on the sliding friction are obtained. The results of calculation of the load increase coefficient in gearing and the clearance influence coefficient on friction losses in gearing are presented. This decision allows to take into account the possible increase in the load of the contacts and the change of the coefficient of loss in gearing at the design stage.
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