| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic balancing device for a press machine which can prevent the generation of noises during idle running caused by the conversion of rotational motion energy and reciprocating motion energy to be performed at a cycle twice the number of continuous strokes even if dynamic balance is brought and can prevent damage or the like to a clutch hub caused by rotation at an unequal speed of a flywheel. SOLUTION: In the dynamic balancing device for the press machine of crank driving to rotate at a high speed, the device is constituted of four eccentric parts 4a, 4b, 4c, and 4d which are provided to a crankshaft 3, have equal eccentricity and a phase difference by 90°, and four mass points Wa, Wb, Wc, and Wd which are respectively connected by connecting rods 6, 13, 15, and 17 from the eccentric parts and move along in the same direction, and, one of them is made to be a slide 5 and the others are made to be dynamic balance parts 12, 14, and 16. COPYRIGHT: (C)2003,JPO
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