| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling drum for which the number of components is reduced, manufacturability is improved, the centroid of a drum is easily positioned at the center, and even reinforcement of the drum and an agitation performance of lubricating oil are improved.SOLUTION: The rolling drum includes: a roll body 21 which is rotated while being in contact with a road surface; first and second partition walls 22 and 23 which are welded to the inner side of the roll body 21; a roughly cylindrical inner wall 24 whose both ends are closely attached to the first and second partition walls 22 and 23, and which is composed of a concentric circle with the roll body 21; a rotary shaft 18 which passes through the first partition wall 22; and a bearing 19a which is formed on the second partition wall 23 and pivotally supporting an end of the rotary shaft 18. The first and second partition walls 22 and 23 and the inner wall 24 are integrally formed with cast steel. A centroid adjustment part is formed on one or both of the first partition wall 22 and the second partition wall 23, and the first partition wall 22 and the second partition wall 23 have respectively different shapes so that the centroid in the longitudinal direction of a rolling drum 4 is positioned at the center. |
