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    • 2. 发明授权
    • Brush chipper and brake assembly usable therewith
    • 刷子切屑机和可与其一起使用的制动组件
    • US3989198A
    • 1976-11-02
    • US568706
    • 1975-04-16
    • Andrew G. Blasko
    • Andrew G. Blasko
    • A01F29/16B02C23/04B23Q11/00
    • B23Q11/0092A01F29/16B02C23/04Y10S83/01Y10T477/37
    • The preferred embodiment of the invention disclosed herein includes a motor operatively connected to drive a rotatable drum assembly including cutting means rotatable through a cutting station where brush and similar debris is cut into small chips. Adjacent the cutting station is a feed station from which the brush may be hand-fed to the cutting station and at the feed station is actuating means operative to actuate emergency shutoff means and emergency brake means, the former being operative to shut off the motor and the latter being operative to stop the rotation of the drum assembly. Preferably, the emergency brake means includes a band member including a brake lining located about the periphery of a portion of the drum assembly and having spaced apart end portions. One end portion of the band member is fixed to a frame and the other end portion is spring biased away from the drum assembly so that the brake lining is normally not engaged with the adjacent periphery of the drum assembly. The other end portion of the band member is also associated with electromagnets normally spaced from a portion of the drum member. When the actuating means is operative, the electromagnets are energized and grip the drum assembly whereby the energy in the drum assembly causes the brake lining to wrap around the periphery of the drum assembly and exert a braking force thereon.
    • 本文公开的本发明的优选实施例包括可操作地连接以驱动可旋转滚筒组件的马达,其包括可通过切割工位旋转的切割装置,其中刷子和类似碎片被切割成小碎片。 相邻的切割站是进给站,刷子可以从该进给站手动馈送到切割站,并且在进给站处是用于致动紧急切断装置和紧急制动装置的致动装置,前者用于切断马达和 后者可操作以停止鼓组件的旋转。 优选地,紧急制动装置包括带状构件,该带构件包括围绕鼓组件的一部分的周边设置并具有间隔开的端部的制动衬片。 带构件的一个端部固定到框架,另一端部被弹簧偏压远离鼓组件,使得制动衬片通常不与鼓组件的相邻周边接合。 带构件的另一端部还与通常与鼓构件的一部分隔开的电磁体相关联。 当致动装置可操作时,电磁体被激励并且夹紧鼓组件,由此滚筒组件中的能量使制动衬片围绕滚筒组件的周边并在其上施加制动力。