| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a torsional vibration control device which changes liquid loads without special electric control and effectively controls the torsional vibration by automatically changing the state under the load from the liquid when the rotational direction of a disk is forward/backward. <P>SOLUTION: The torsional vibration control device for attenuating the torsional vibration of a rotary shaft from which the torsional vibration occurs, includes: a disk 11 fixed to the rotary shaft; a casing which covers the entire disk and in which a fluid R is sealed; a movable body 13 stored in a recess 14 formed in an end face of the disk 11 in a projecting/retracting manner; and an urging member 16 for urging the movable body 13 to the outside of the recess 14. The movable body 13 has a first pressure-receiving surface 13a for receiving the pressure from the fluid R so that the movable body 13 is absorbed in the recess 14 against the urging force of the urging member 16 when the rotary shaft is rotated to one side, and a second pressure-receiving surface 13b for receiving the pressure in the tangential direction of the rotary shaft from the fluid R when the rotary shaft is rotated to the other side. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
