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    • 1. 发明授权
    • Slide rule for selecting material for constructing bearing
    • 选择构造轴承材料的滑动规则
    • US4775779A
    • 1988-10-04
    • US023396
    • 1987-03-09
    • Osamu Fukute
    • Osamu Fukute
    • G06G1/06G06C1/00G06G1/00G06G1/10G06G1/12G06C27/00
    • G06G1/0026G06G1/12
    • A slide rule for selecting bearing materials has a base plate, a fixed cursor having first, second and third portions spaced apart from one another and fixedly attached to the base plate, a first sliding ruler slidably mounted between the first and second portions of the fixed cursor, an indicator cursor having an indicator cursor line and fixed to the first sliding ruler, a second sliding ruler slidably mounted between the second and third portions of the fixed cursor, and a fixed ruler mounted on the opposite side to the second sliding ruler with the third portion of the fixed cursor interposed therebetween. The fixed cursor has a fixed cursor line in the vicinity of its left end. The first sliding ruler has logarithmic graduations which indicate levels of bearing surface pressure. The second sliding ruler has logarithmic graduations which indicate sliding speeds, PV values and periods of lifetime of various bearing materials. The fixed ruler has graduations which indicate bearing temperatures and on which correction factors in respect of bearing temperatures and information on various bearing materials are indicated. The slide rule is manipulated on the basis of given values of bearing surface pressure and sliding speed to provide information on a PV value of a bearing, a lifetime of a bearing material, regreasing time, danger limits, attention limits, safety limits and so forth.
    • 用于选择轴承材料的滑动规则具有基板,固定的光标,其具有彼此间隔开并固定地附接到基板的第一,第二和第三部分,可滑动地安装在固定的第一和第二部分之间的第一滑动尺 光标,具有指示光标线并固定到第一滑动标尺的指示光标,可滑动地安装在固定光标的第二和第三部分之间的第二滑动标尺和安装在与第二滑动尺相反的一侧的固定标尺, 固定光标的第三部分插入其间。 固定光标在其左端附近具有固定的光标线。 第一滑动尺具有对数刻度,其指示承载面压力的水平。 第二滑动尺具有对数刻度,其指示各种轴承材料的滑动速度,PV值和使用寿命周期。 固定尺具有指示轴承温度的刻度,并且指示了关于轴承温度的校正因子和关于各种轴承材料的信息。 滑动规则是根据轴承表面压力和滑动速度的给定值进行操作的,以提供关于轴承的PV值,轴承材料的寿命,再生时间,危险限制,注意限制,安全限制等的信息 。