Analysis of a cycloid speed reducer
TL;DR: In this article, a procedure to calculate the forces on various elements of the speed reducer as well as the theoretical efficiency is presented, and the effects of design parameters on forces and contact stresses are studied.
About: This article is published in Mechanism and Machine Theory.The article was published on 1983-01-01. It has received 88 citations till now. The article focuses on the topics: Reducer.
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TL;DR: In this paper, a new method of cycloid disc tooth modification is presented, which can improve the carrying capability of cycloidal drive, eliminate noise and vibration and develop the transmission accuracy.
45 citations
TL;DR: In this paper, a nonpin cycloid reducer with a small tooth difference was proposed, where the pinwheel was replaced by a cycloid internal gear, and a mathematical model of the nonpin design with a multitooth difference was derived.
41 citations
TL;DR: In this article, a new transmission design for eccentric speed reducers was proposed, which differs from that used with a traditional cycloid speed reducer, other than the input and output shafts, is that it uses the internal gear as its fixed part and transmission between the external gear and the output shaft occurs via pins connected to a drive plate.
29 citations
01 Jan 2012
TL;DR: In this paper, the effect of friction on the distribution of contact force, the friction torque value, and the efficiency of cycloidal speed reducers was analyzed. But the authors did not consider the impact of friction at all points of contact between the moving elements of cycloid disc and central roller bearings.
Abstract: cycloidal speed reducers belong to the new generation of mechanical gears. cy cloidal speed reducers are increasingly used in modern engineering due to their good performances. Friction exists at all points of contact between the moving elements of cycloidal speed reducers, as one of the main causes of power losses in power transmission. In this paper, the friction of the contact of cycloid disc and housing rollers has been taken into account, while the friction at the contact of cycloid disc and output rollers, and at the contact of cycloid disc and central roller bearings are neglected. The effect of friction on the distribution of contact force, the friction torque value is analysed as well as efficiency. This paper pres ents 2 analytical models for calculating the values of contact force and friction torque. The 2nd model opposed to the 1st, taking into account the phenomenon of friction. The results showed that friction significantly affects the distribution of normal force. Increase of the friction produces the contact forces and friction torque increase, also, while efficiency is decreasing.
20 citations