专利名称：Hydraulic torque wrench
发明人：Bosko Grabovac,Ivan N. Vuceta 申请号：US06/338068
申请日：19820108
公开号：US04429597A
公开日：
19840207
专利内容由知识产权出版社提供
reaction in the shaft
摘要：A pneumatically driven power torque wrench comprising an elongate frame with front and rear ends, a transversely extending drive shaft rotatably carried by the frame at the front end thereof; a ratchet drive to rotate the shaft and including a ratchet wheel on the shaft; a drive ring about the wheel; circumferential pawls between the wheel, the ring and an elongate lever arm projecting from said ring. The wrench further includes a cylinder and ram unit fixed to and extending between the lever arm and the rear end of the frame and a work-engaging tool carried by the shaft, at one end thereof, and engaging a fastener concentric therewith. The wrench next includes a reaction device to anchor the rear end of the frame against rotation about the axis of the shaft. The reaction device includes a pair of elongate laterally spaced shackle plates with forward ends pivoted to the rear end of the frame; an elongate tubular body fixed to and extending between the rear free ends of the plates and an elongate post slidably engaged trough and projecting from the ends of the body and having work-engaging coupling parts at its opposite ends. A work-engaging tool is coupled with one end of the post and is engaged with a fastener spaced from the fastener aligned with the shaft. The post is shiftable axially so that the body, post and fastener are in axial alignment when the drive shaft is in axial alignment with the fastener related to it.
申请人：CONSOLIDATED DEVICES, INC.更多信息请下载全文后查看

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