Inchworm type of actuator
    1.
    发明授权
    Inchworm type of actuator 失效
    行星式致动器

    公开(公告)号:US5662020A

    公开(公告)日:1997-09-02

    申请号:US689016

    申请日:1996-07-30

    IPC分类号: F15B11/12 F15B11/18 F15B15/26

    CPC分类号: F15B11/18 F15B11/12

    摘要: A forward-moving inching unit and a backward-moving inching unit are built in a casing (1) which is slidable relative to a guide member (b). Each of the inching units is made up of an inching piston (60), a brake piston (61) disposed in a direction opposite to the inching piston (60), a lock member (62) disposed between the inching piston (60) and the brake piston (61) to tighten the guide member (b) when pinched between both the pistons (60, 61), a spring (63) for urging the pistons (61) to the right/to the left, a first pressure chamber (64) for pressing the brake piston (61) to the right/to the left, a second pressure chamber (65) for pressing the inching piston (60) in the opposite direction, and a valve block (2) for inputting, at the time of forward-moving inching, a fluid pressure into the second pressure chamber (65) of the forward-moving inching unit and the first pressure chamber (64) of the backward-moving inching unit and for inputting, at the time of backward-moving inching, the fluid pressure into the second pressure chamber (65) of the backward-moving inching unit and the first pressure chamber (64) of the forward-moving inching unit.

    摘要翻译: 向前移动的微动单元和向后移动的微动单元内置在可相对于引导构件(b)滑动的壳体(1)中。 每个微动单元由一个微动活塞(60),一个设置在与该微动活塞(60)相反的方向上的制动活塞(61)构成,一个锁定构件(62),设置在该微动活塞(60)和 所述制动活塞(61)在两个活塞(60,61)之间夹紧时紧固所述引导构件(b),用于将活塞(61)向右/向左推动的弹簧(63),第一压力室 (64),用于将制动活塞(61)向右/向左按压;第二压力室(65),用于沿相反方向按压所述微动活塞(60);以及阀块(2),用于在 向前移动的微动单元的向前移动的微动单元的第二压力室(65)和向后移动的微动单元的第一压力室(64)的流体压力,并且在向后移动的微动单元的第二压力室 流动压力进入向后移动的微动单元的第二压力室(65)和第一压力室(64)中的流体压力 向上移动的微动单元。

    Apparatus for controlling nut runner
    2.
    发明授权
    Apparatus for controlling nut runner 失效
    用于控制螺母扳手的装置

    公开(公告)号:US5062491A

    公开(公告)日:1991-11-05

    申请号:US459332

    申请日:1989-12-29

    摘要: The output shaft of a nut runner for tightening a fastener such as a bolt is first rotated with a first torque at a first speed. When the tightening torque of the output shaft reaches a preset switching torque, the first torque first speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a second torque at a second speed. When the tightening torque then reaches a preset snug torque, the second torque second speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a third torque at a third speed. When the tightening torque reaches a preset final torque, the third torque third speed rotation of the output shaft is stopped, thus completing the tightening of the fastener.

    摘要翻译: 用于紧固诸如螺栓的紧固件的螺母扳手的输出轴首先以第一速度以第一扭矩旋转。 当输出轴的紧固扭矩达到预设的切换转矩时,输出轴的第一转矩第一速度旋转中断,此后输出轴以第二速度以第二转矩旋转。 当紧固扭矩达到预设的贴合转矩时,输出轴的第二转矩二次转速中断,此后输出轴以第三速度以第三转矩旋转。 当紧固扭矩达到预设的最终扭矩时,输出轴的第三扭矩三速旋转停止,从而完成紧固件的紧固。

    Method of and apparatus for controlling nut runner
    6.
    发明授权
    Method of and apparatus for controlling nut runner 失效
    控制螺母扳手的方法和设备

    公开(公告)号:US4908926A

    公开(公告)日:1990-03-20

    申请号:US288248

    申请日:1988-12-22

    摘要: The output shaft of a nut runner for tightening a fastener such as a bolt is first rotated with a first torque at a first speed. When the tightening torque of the output shaft reaches a preset switching torque, the first torque first speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a second torque at a second speed. When the tightening torque then reaches a preset snug torque, the second torque second speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a third torque at a third speed. When the tightening torque reaches a preset final torque, the third torque third speed rotation of the output shaft is stopped, thus completing the tightening of the fastener.

    摘要翻译: 用于紧固诸如螺栓的紧固件的螺母扳手的输出轴首先以第一速度以第一扭矩旋转。 当输出轴的紧固扭矩达到预设的切换转矩时,输出轴的第一转矩第一速度旋转中断,此后输出轴以第二速度以第二转矩旋转。 当紧固扭矩达到预设的贴合转矩时,输出轴的第二转矩二次转速中断,此后输出轴以第三速度以第三转矩旋转。 当紧固扭矩达到预设的最终扭矩时,输出轴的第三扭矩三速旋转停止,从而完成紧固件的紧固。