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    • 51. 再颁专利
    • Adjustable torque limiting assembly
    • 可调扭力限制组件
    • USRE33514E
    • 1991-01-08
    • US104004
    • 1987-10-02
    • Donald A. Ciolli
    • Donald A. Ciolli
    • B25B23/14F16D7/02F16D43/21
    • F16D7/022B25B23/14B25B23/141F16D43/211
    • An adjustable torque limiting assembly includes a first wrap spring mechanism which provides a readily adjustable torque transmission limit and a second coaxially disposed wrap spring mechanism which provides a mechanical signal that the torque limit has been reached. This signal may be utilized to terminate an energy supply to a prime mover associated with the torque limiting assembly. The first wrap spring mechanism generally includes a wrap spring in which the spring moment and thus the slip or overrunning torque threshold may be readily adjusted. The second wrap spring assembly likewise includes a wrap spring which is activated only subsequent to slip of the first wrap spring and enlarges to engage a concentrically disposed control sleeve. The control sleeve then rotates and activates an associated shut-off mechanism. Drive from the first wrap spring assembly to an output shaft is through an overrunning clutch assembly which allows energy in the wrap springs to dissipate and the springs to wind down and return to their start positions when power to the torque limiting assembly is removed.
    • 54. 发明授权
    • Shaft driver device and conveyor system embodying the same
    • 轴驱动装置和输送机系统
    • US3782515A
    • 1974-01-01
    • US3782515D
    • 1970-09-30
    • UNITED IND ENG CORP
    • COWEN W
    • B65G13/073B65G47/26F16D43/21F16D43/20
    • B65G47/261B65G13/073F16D43/211
    • A shaft driver device is disclosed for use, illustratively, in a roller-type load conveyor or like system in which load units are halted for the performance of an operation thereon, with a consequent increased drag on a normally powered roller of the conveyor which is driven by the device. The system and drive device incorporate means which acts quite independently of any control factor, other than the drag effect, to interrupt the drive of the conveyor roller, or equivalent element in a different installation, immediately upon the arising of drag in excess of a critical value, restoring the drive when that value diminishes or the drag ceases. The drive control means referred to is built in its entirety into the structure of a driven roller or other shaft-driven component comparable thereto. More specifically, the system comprises a first hub member normally rotating with the driver shaft and powered from an appropriate source, a second hub member coaxial with the first member, and means in the form of a torsion spring clutch device normally coupling said members for rotation as a unit under a drag load less than the critical value. The first member is shown as having a resilient driving connection to the second member which, on excess load, yields and causes the torsion spring coupling means to be de-clutched, the shaft drive then coming to a halt. This drive connection is adjustable as to its resilient bias to determine the critical value.
    • 公开了一种用于示例性地在辊式负载输送机或类似系统中使用的轴驱动器装置,其中负载单元被停止以用于在其上进行操作,由此在传送带的常动辊上增加了阻力, 由设备驱动。 该系统和驱动装置包括非常独立于除拖曳效应之外的任何控制因素的装置,以在阻力超过临界值的情况下立即中断输送辊或不同装置中的等效元件的驱动 值,当该值减小或拖曳停止时恢复驱动器。 所涉及的驱动控制装置全部内置于与其相当的从动辊或其他轴驱动部件的结构中。
    • 60. 发明授权
    • Torque limiter
    • 扭矩限制器
    • US08425333B2
    • 2013-04-23
    • US13122415
    • 2009-10-02
    • Takashi Yamamoto
    • Takashi Yamamoto
    • F16D43/20
    • F16D7/022F16D43/211
    • In a spring type torque limiter, it is proposed to prevent cut end portions of a coil spring fitted on an inner ring from causing chatter of the torque limiter, even if the cut end portions of the coil spring are separated from a radially outer surface of the inner ring in order to prevent burrs remaining on the cut end portions of the coil spring from contacting the radially outer surface of the inner ring. The first cut end portion of the coil spring fitted on the inner ring is inserted in a recess of a first spring receiving protrusion formed on the radially inner surface of the outer annular member. The second cut end portion is inserted in a recess of a second spring receiving protrusion formed on the inner surface of the lid member, thereby restraining the first and second cut end portions with the recesses.
    • 在弹簧式扭矩限制器中,即使螺旋弹簧的切断端部与径向外侧面分离,也可以防止安装在内圈上的螺旋弹簧的切断端部与扭矩限制器发生振动, 内圈,以防止螺旋弹簧的切割端部残留的毛刺与内圈的径向外表面接触。 安装在内圈上的螺旋弹簧的第一切割端部插入形成在外环形构件的径向内表面上的第一弹簧接收突起的凹部中。 第二切割端部插入到形成在盖构件的内表面上的第二弹簧接收突起的凹部中,从而通过凹部来限制第一和第二切割端部。