公开(公告)号：US4977966A

公开(公告)日：1990-12-18

申请号：US502594

申请日：1990-03-30

申请人： Bruce Farber ,  John Kunsemiller ,  Scott Barradas

发明人： Bruce Farber ,  John Kunsemiller ,  Scott Barradas

IPC分类号： B25B21/02

CPC分类号： B25B21/02 ,  B25B21/026

摘要： This invention pertains to a rotary impact tool which utilizes pressurizedeawater as the working fluid. When an operator engages a trigger on a novel control handle and valve assembly, pressurized seawater enters the rotary impact tool through the control handle and valve assembly and a reversing valve into a seawater powered vane motor. The shaft of the seawater powered motor, is coupled to a twin hammer impact mechanism by a novel coupling assembly with rotation of the vane motor driving the impact mechanism which translates vane motor power into impact torque. The impact mechanism is, in turn, sealed within a cavity in the front portion of the housing of rotary impact tool with lubrication and cooling of the impact mechanism being provided by a water soluble oil based lubricant which fills the cavity.

摘要翻译： 本发明涉及利用加压海水作为工作流体的旋转冲击工具。 当操作者接合新颖的控制手柄和阀组件上的触发器时，加压海水通过控制手柄和阀组件进入旋转冲击工具，并将反向阀转入海水动力叶片马达。 海水电动马达的轴通过新颖的联接组件联接到双锤冲击机构，叶片马达的旋转驱动冲击机构，其将叶片马达功率转换成冲击扭矩。 冲击机构又在旋转冲击工具的壳体的前部的空腔内密封，其中冲击机构的润滑和冷却由填充空腔的水溶性油基润滑剂提供。