| 摘要 |
PURPOSE: A system for rotating a heavy equipment is provided to simplify the structure by removing a plurality of rotation bearings for improving the assembling of parts and restraining the assembling allowance. CONSTITUTION: A system for rotating a heavy equipment includes a housing(10) integrally coupled with a lower body and having a hollow part(12), a rotary joint(20) rotatably received in the housing, axially coupled with an upper rotation element and formed with a gear part(22) on an outer peripheral surface of a lower end part, supporting elements respectively mounted at upper and lower parts of the housing for supporting the rotary joint, a taper roller bearing interposed between the rotary joint and the inner periphery of the housing for assisting the rotation of the rotary joint, and a decelerator(30) formed of a planetary reduction gear(32) and a linear gear(34) respectively engaged with the gear part of the rotary joint.
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