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crankshaft and crank for machines with a factor of improved dynamic balance
crankshaft and crank for machines with a factor of improved dynamic balance
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机译:曲轴和曲轴,用于改善动平衡的因素
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摘要
A balanced multiple-throw crank-shaft wherein the free forces of the first and second orders forming resultants for the whole crank-shaft of the forces produced by each coupling are substantially zero and at least some of the crank-throws are shifted or offset angularly, respectively, by such a small angle in one direction of rotation and by such an amount relative to the corresponding circumferentially uniformly distributed angular positions they would assume in a configuration with angularly equally spaced crank-throws in orthogonal projection on a plane perpendicular to the geometrical spin axis of rotation of said crank-shaft that an improved balancing ratio will result therefrom.
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