| 摘要 |
PURPOSE: A wheel structure for a crane capable of using a driving bearing and a coupled driving bearing convertibly on a driving ring support and a coupled driving ring support with various diameters is provided to minimize the cross sectional thickness of the driving ring of a driving wheel and of the coupled driving ring of the coupled driving wheel, thereby minimizing material loss even when the worn driving ring and coupled driving ring are abandoned. CONSTITUTION: A wheel structure for a crane comprises a driving wheel(13) and a coupled driving wheel. The driving wheel comprises a driving ring(14), a driving wheel support(20),and a driving bearing(22). The driving ring comprises a non-connecting hollow(16) in the center area. The driving wheel support is equipped with a weight reduction hollow unit(21) in the center area. The driving bearing is combined between a driving ring support(17) and a driving wheel support, and rotates the driving ring and the driving ring support around the driving wheel support as a center. The coupled driving wheel comprises a coupled driving ring, a coupled driving wheel support and a coupled driving wheel support. The coupled driving ring is equipped with a non-connecting hollow in the center area. The coupled driving wheel support is equipped with a weight reduction hollow in the center area. The coupled driving bearing is combined between a coupled driving ring support and a coupled driving wheel support, and rotates the coupled driving ring and the coupled driving ring support around the coupled driving wheel support as a center. |
