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    • 25. 发明授权
    • Belt tensioning mechanism
    • 皮带张紧机构
    • US5358452A
    • 1994-10-25
    • US114159
    • 1993-09-01
    • Kai Zhao
    • Kai Zhao
    • F16H7/08F16H7/12
    • F16H7/1281F16H2007/0806F16H2007/0808F16H2007/0893
    • Disclosed is a belt tensioning system having a lever, an idler pulley attached to the lever and contacting a belt, and a fluid cylinder acting on the lever for belt tensioning. In the invention, the cylinder applies a force to the lever through a first moment arm and the pulley applies tensioning force to a belt through a second moment arm. Because of the unique arrangement, the tensioning force applied to the belt is substantially constant, notwithstanding that the lengths of the moment arms change with changes in lever position as the length of the belt changes.
    • 公开了一种带张紧系统,其具有杠杆,安装在杠杆上并与皮带接触的惰轮,以及作用在杠杆上的用于带张紧的流体缸。 在本发明中,气缸通过第一力矩臂向杠杆施加力,并且滑轮通过第二力矩臂向皮带施加张紧力。 由于独特的布置,施加到带的张紧力基本上是恒定的,尽管当带的长度改变时,力臂的长度随着杆位置的变化而改变。