发明名称 DOWNHOLE MOTOR DRIVE SHAFT UNIVERSAL JOINT ASSEMBLY
摘要 A universal joint assembly comprises a first rotary member having a longitudinal axis and an outer tubular portion at one end thereof concentrically disposed about the axis, a second rotary member having having a longitudinal axis and an inner tubular portion at one end thereof concentrically disposed about the axis, the second member being adapted to be telescopically received within the outer tubular end portion of the first member, means pivotally connecting the first and second members whereby to provide limited omnidirectional pivotal movement of one of the first and second members with respect to the other of the first and second members about a point of intersection of the longitudinal axes of the first and second members, and torque transfer means disposed between the outer and inner tubular end portions for transferring torque between the first and second members, the torque transfer means including longitudinal slot means formed in one of the tubular end portions and key means extending from the other of the tubular end portions into torque transfer relation with the slot means.
申请公布号 CA1290952(C) 申请公布日期 1991.10.22
申请号 CA19860522636 申请日期 1986.10.11
申请人 DRECO GROUP OF COMPANIES LTD. (THE);DRECO GROUP OF COMPANIES LTD. (THE) 发明人 WENZEL, KENNETH H.
分类号 E21B4/02;E21B17/05;F16D3/205;(IPC1-7):F16D3/50 主分类号 E21B4/02
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