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    • 10. 发明公开
    • Speed control unit for a pneumatic rotation motor
    • Drehzahlregelungfüreine rotierende Luftdruckmaschine
    • EP0945591A2
    • 1999-09-29
    • EP99850049.0
    • 1999-03-26
    • ATLAS COPCO TOOLS AB
    • Jacobsson, Rolf Alexis
    • F01B25/00
    • F01B25/02Y10S415/904Y10T137/1026Y10T137/108Y10T137/1153
    • A speed control unit for a pneumatic rotation motor having a stator (10) with an air inlet passage (14), a rotor (11) journalled in the stator (10), a speed governor (26) operated by two or more fly-weight members (28), and an overspeed safety device(27), wherein the rotor (11) is formed with a coaxial blind bore (22) in which is secured a mounting structure (23) for supporting the fly-weight members (28), the valve element (29) and the bias spring (35) of the speed governor (26) inside the rotor (11), and the overspeed safety device (27) comprises a flow restricting element (39) displaceably guided in the air inlet passage (14) and locked in an inactive rest position by a trip element (43), and a speed responsive actuator (45) co-rotative with the rotor (11) and consisting of an elastically deformable spring element (44) secured to the speed governor valve element (29) and arranged to be radially bent by centrifugal action to hit and release the trip element (43) to thereby free the flow restricting element (39) at the attainment of a predetermined speed level.
    • 一种用于具有定子(10)的气动旋转马达的速度控制单元,所述定子具有进气通道(14),轴颈安装在所述定子(10)中的转子(11),由两个或更多个飞轮 配重构件(28)和超速安全装置(27),其中转子(11)形成有同轴盲孔(22),其中固定有用于支撑飞重构件(28)的安装结构(23) ),转子(11)内部的调速器(26)的阀元件(29)和偏置弹簧(35),以及超速安全装置(27)包括在空气中可移动地引导的流量限制元件 入口通道(14)并且由跳闸元件(43)锁定在非活动休止位置,以及速度响应致动器(45),与所述转子(11)共同旋转,并且包括可弹性变形的弹簧元件(44) 调速阀元件(29),并且被布置成通过离心作用径向弯曲以击打并释放跳闸元件(43),从而释放f 低限制元件(39)达到预定速度水平。