Patent
Torque responsive actuation device for a belt drive system
TLDR
In this paper, an actuator cover plate is connected by rods to a lower half of a split pulley, with the upper pulley half mounting a helix or cam cone extending towards the actuator under-surface.Abstract:
The invention in a torque responsive actuator device for a belt drive system as is commonly utilized with snowmobile and like type vehicles. An actuator cover plate of the invention is connected by rods to a lower half of a split pulley, with the upper pulley half mounting a helix or cam cone extending towards the actuator cover plate undersurface that includes a plurality of cam tracks formed therein that are each to receive a cam follower for travel therealong that extends from the actuator cover plate undersurface. Movement of the actuator cover plate towards the top face of the pulley upper half is thereby translated through the rods to spread the pulley upper and lower halves apart, opening a V slot therebetween to a drive belt that is maintained therein. A cylindrical shaft is journaled through the actuator cover plate and fitted through pulley that includes a coil spring disposed therearound for providing spring biasing to urge the actuator cover plate away from the pulley upper half, closing the pulley halves together. To provide minimum friction operation and actuator wear the invention employs cam follower roller bearings as the cam followers and radiuses or forms the cam tracks to have a center apex wherealong a roller of the roller bearing travels through a variety of cam degree angles as the cam followers experience as they travel along the cam tracks during actuator operation.read more
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References
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Patent
V-belt type continuously variable transmission
TL;DR: In this paper, a V-belt continuously variable transmission with a drive pulley having a speed responsive mechanism and a driven pulley with a torque responsive mechanism is described, where a spring cap is mounted on a sleeve to which a fixed pulley half or sheave is affixed.
Patent
Variable diameter torque sensing drive
TL;DR: In this paper, a load responsive torque sensing unit adapted to drive the rotor of an axial flow combine and including a variable pitch V-belt input sheave, and an output shaft concentric therewith, the latter having means for connecting it drivingly to the combine rotor.
Patent
Cam for variable width pulley
J. Douglas Smith,David Moulton +1 more
TL;DR: In this paper, a V-belt-type transmission system incorporating a plurality of cam lobes that extend in an axial direction at a predetermined radial distance from the pulley axis is described.
Patent
Torque cam assembly for variable speed drive and follower element therefor
Huff Robert O,Gebus Barnsfather +1 more
TL;DR: In this article, a torque cam assembly for variable speed belt drives having a driven sheave with an axially slidable flange is presented, in which a collar is mounted on the shaft of the sheave and has a plurality of cams thereon.
Patent
Bearing of the conical discs of an infinitely variable cone pulley transmission
TL;DR: In this article, an infinitely variable cone pulley transmission is described where the pulley discs are urged against a shoulder of the transmission shaft by the force of a helical coil spring exerted on the disc pair in axial direction.