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    • 3. 发明授权
    • Clamping tool
    • 夹紧工具
    • US4106371A
    • 1978-08-15
    • US769806
    • 1977-02-17
    • Toshio AkiyoshiTsutomu OnishiShozo Haikawa
    • Toshio AkiyoshiTsutomu OnishiShozo Haikawa
    • B25B21/00B25B23/14B25B29/00
    • B25B23/0078B25B21/002B25B23/1415
    • A clamping or power wrench tool for tightening a bolt, nut and the like comprising a power shaft engaging the bolt, nut and the like, a driving power source of electromotive, pneumatic or hydraulic type, an anti-reaction force member for the prevention of rotation of the tool case due to the reaction force, a harmonic drive mechanism as the speed reduction mechanism between the power shaft and the driving power source, planetary gear device provided between the harmonic drive mechanism and the power shaft, a first mechanism engaged with a nut screwed to a torque set bolt and rotating the nut with the rotation of the power shaft thereby tightening the nut, a second mechanism engaged to the torque set bolt in such a way as to break the torque set bolt at a predetermined position when the tightening torque arrives at a predetermined value in the course of the clamping and a knock out mechanism which discharges the broken piece of the torque set bolt out of the case by means of a spring force.
    • 一种用于拧紧螺栓,螺母等的夹紧或电动扳手工具,包括接合螺栓,螺母等的动力轴,电动,气动或液压型的驱动动力源,用于防止 作为反作用力的工具箱的旋转,作为动力轴和驱动动力源之间的减速机构的谐波驱动机构,设置在谐波驱动机构和动力轴之间的行星齿轮装置,与 螺母拧到转矩固定螺栓上并随着动力轴的旋转而旋转螺母,从而拧紧螺母,第二机构以扭矩设定螺栓的方式接合,以便在拧紧时将扭矩设定螺栓打破预定位置 在夹紧过程中扭矩达到预定值,并且通过弹簧f将扭矩设定螺栓的断裂件从壳体中排出的脱扣机构 rce。
    • 5. 发明授权
    • Power wrench
    • 电动扳手
    • US4179955A
    • 1979-12-25
    • US930074
    • 1978-08-01
    • Toshio AkiyoshiTsutomu OnishiShozo Haikawa
    • Toshio AkiyoshiTsutomu OnishiShozo Haikawa
    • B25B21/00B25B23/00B25B23/14B25B29/00
    • B25B21/002B25B21/00B25B23/0078B25B23/14B25B23/1415
    • A power wrench, or clamping tool, for tightening a bolt, nut and the like comprising a power shaft engaging the bolt, nut and the like, a driving power source of electromotive, pneumatic or hydraulic type, an anti-reaction force member for the prevention of rotation of the tool case due to the reaction force, a harmonic drive mechanism as the speed reduction mechanism between the power shaft and the driving power source, planetary gear device provided between the harmonic drive mechanism and the power shaft, a first mechanism engaged with a nut screwed to a torque set bolt and rotating the nut with the rotation of the power shaft thereby tightening the nut, a second mechanism engaged to the torque set bolt in such a way as to break the torque set bolt at a predetermined position when the tightening torque arrives at a predetermined value in the course of the clamping and a knock out mechanism which discharges the broken piece of the torque set bolt out of the case by means of a spring force. The tool case rotates with respect to a handle under relatively high frictional restraint to prevent the handle from rotation during the breakage or failure of the anti-reaction force member, and the anti-reaction force member is rotatable freely to a limited degree with respect to the tool case for locating the anti-reaction force member in contact with an adjacent nut and bolt to the nut being torqued down by the power wrench.
    • 一种用于拧紧螺栓,螺母等的电动扳手或夹紧工具,其包括接合螺栓,螺母等的动力轴,电动,气动或液压型的驱动动力源,用于 防止由于反作用力而引起的工具壳的旋转,作为动力轴和驱动动力源之间的减速机构的谐波驱动机构,设置在谐波驱动机构和动力轴之间的行星齿轮装置,第一机构接合 螺母拧到转矩固定螺栓上并随着动力轴的旋转而旋转螺母,从而拧紧螺母,第二机构以扭矩设定螺栓的方式接合,以便在预定位置上将扭矩调整螺栓断开, 紧固扭矩在夹紧过程中达到一个预定值,而一个敲击机构将扭矩设定螺栓的断裂片通过一个弹簧 力。 工具箱在相对较高的摩擦限制下相对于把手转动,以防止在反作用力构件的断裂或故障期间手柄旋转,并且防反作用构件可相对于 用于将防反作用构件定位成与相邻的螺母和螺栓定位到螺母的工具箱被动力扳手扭转。