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    • 1. 发明申请
    • OVERLOAD PROTECTION FOR A TRANSMISSION WHEEL, PARTICULARLY A PULLEY
    • 传动轮的过载保护,特别是PULLEY
    • WO1990000687A1
    • 1990-01-25
    • PCT/SE1989000325
    • 1989-06-09
    • SAAB-SCANIA AKTIEBOLAGBJÖRCK, Per-Gunnar
    • SAAB-SCANIA AKTIEBOLAG
    • F16D09/00
    • F16D27/112F16D9/02F16H2055/366
    • In a belt transmission in which several units are driven by a common belt, a breakdown in one of the units can cause serious damage if the belt drive stops functioning. In order to avoid this, an overload protection is arranged which ensures driving of the other units and which disengages a unit which has broken down. In the unit in question, driving power is normally transmitted from the pulley (8), or other transmission wheel, via a friction clutch to the drive shaft (16) of the unit. The friction clutch comprises a clutch plate (22) with a number of attached pins (23) which engage, in a torque-transmitting manner, in a carrier (18) connected to the drive shaft (16) of the unit. The pins (23) are in this respect attached by means of solder joints (27) with a solder of such a chosen fusing point that the pins (23) are loosened by the heating which is obtained if the clutch plate (22) slides.
    • 在其中多个单元由公共皮带驱动的皮带传动装置中,如果皮带传动装置停止工作,则其中一个装置中的故障会导致严重损坏。 为了避免这种情况,布置了过载保护,其确保驱动其他单元并且使已经分解的单元脱离。 在所讨论的单元中,驱动动力通常通过摩擦离合器从滑轮(8)或其他传动轮传递到单元的驱动轴(16)。 摩擦离合器包括具有多个连接销(23)的离合器片(22),其以扭矩传递方式接合在连接到该单元的驱动轴(16)的托架(18)中。 在这方面,销(23)通过焊接接头(27)与焊料接合,该焊接点具有这样一个选择的熔点的焊料,使得销(23)通过如果离合器片(22)滑动而获得的加热松动。