Designing Aspects of a Frontal-Sinusoidal Transmission With Balls

Abstract

The frontal-sinusoidal transmission with balls is a new type of mechanical transmission, that allows movement transmission between two coaxial shafts. In the first part of this paper presents the geometric and kinematics study of the elements of a frontal -sinusoidal transmissions with balls, determining in this way the transmission ratios. In the second part of this paper presents the kinetostatic study of the elements of frontal transmission with balls, determining in this way the force that acts upon these forces which are necessary in the constructive dimensioning. An advantage of this transmission, as compared to other mechanical transmissions, is given by the possibility to obtain more transmission ratios. In case all disks of simple frontal-sinusoidal transmission are moving elements a differential transmission it obtained. Another advantage is given by the possibility of obtaining complex transmissions by series and/or parallel arrangement of frontal transmission simple units.

Study on Swing Movable Teeth Drive with External Generating Wave Mode

“…Nam et al proposed a thin platetype speed reducer using balls for robots, defined the trajectory of the ball using trigonometric functions and analyzed the contact force using numerical method and FEM analysis [11]. Similar to the above tooth profile, Bara slotted closed sinusoidal channel on the input and output cam to fabricate a frontal-sinusoidal transmission with balls [12]. Yi et al developed a new movable tooth mechanism based on five polynomial curves to achieve any tooth-difference pure rolling drive and studied the meshing characteristics [13].…”