MUD MOTOR TRANSMISSION

摘要

A double knuckle coupling suitable for transmitting torque applied to a first input shaft to a second shaft wherein the coupling accommodates angular changes between the shafts. Additionally, the disclosure describes an improved mud motor transmission incorporating the coupling.

主权项

1. A drive shaft comprising:
a first input shaft having a first end and a second end, said second end having at least one recessed slot and at least one outwardly projecting ridge; a second input shaft having a first end and a second end, said first end having at least one recessed slot and at least one outwardly projecting ridge; a wear disk having a first wear surface and a second wear surface, said first wear surface having at least one outwardly projecting ridge and at least one recessed slot, said second wear surface having at least one outwardly projecting ridge and at least one recessed slot; said wear disk positioned between said second end of said first input shaft and said first end of said second input shaft such that ridges carried by said input shafts are received within said slots of said wear disk; a double knuckle coupling carried by the second end of the second input shaft; said double knuckle coupling comprising an input shaft, a center shaft and a center coupling element.