Torque limiter
AssigneeDynamic Research and Development Corp.
InventorJames D. Haaser
Life of this patent
Estimating the term…
Abstract
A mechanical device for limiting the maximum torque transferred from a driving shaft to a driven power transmission element including an adapter which rotates fully around a power transmission element; a sleeve firmly affixed to and rotating with the driving shaft; a high friction clutch element pressed between the sleeve and the adapter; and a shear pin connecting the sleeve and the adapter, and providing a compressive force on the clutch element.
Claims11
A torque limiting device for use on a shaft delivering torque to a power transmission element being rotated by said shaft;
- the device comprising:
- (a) an adapter which rotates freely around said shaft and is attached at one end thereof to a power transmission element and having a planar face at the other end thereof;
- (b) a sleeve firmly affixed to said shaft adjacent to said face;
- (c) a clutch element having opposing surfaces with a high coefficient of friction and adapted to be compressed between said adapter and said sleeve;
- and
- (d) shear pin means connecting said adapter to said sleeve with said clutch element therebetween being compressed with force applied by said shear pin means.
A device for limiting the maximum torque which can be transmitted between a shaft driven by a power means and a power transmission element rotated by said shaft;
- the device comprising:
- (a) a tubular adapter which is freely rotatable around said shaft and to which is firmly attached said power transmission element;
- (b) a sleeve firmly attached to said shaft and rotatable therewith;
- (c) a friction clutch element adapted to be sandwiched between said adapter and said sleeve, and free of contact with said driving shaft;
- and
- (d) one or more shear pin elements connecting said sleeve to said adapter with said friction clutch element therebetween, said shear pin elements adapted to provide compressive force on said clutch element.
Dependencies are inferred from the claim text.