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实用新型
CN203474327U 起重机底座 有权

起重机底座
摘要：
本实用新型公开了一种起重机底座，其包括：底架；回转齿圈，固定在所述底架上；回转轴承，由轴承内圈和轴承外圈构成，所述轴承内圈固定在所述底架上，位置与所述回转齿圈同轴；以及动力装置，所述动力装置包括电机和齿轮，所述电机直接或间接固定在所述轴承外圈上，所述齿轮固定在所述电机的转子轴上，与所述回转齿圈啮合，从而由所述电机带动所述轴承外圈相对底架旋转。本起重机底座结构简单，单件零件轻，方便移动和拆装，占地面积小，可在场地十分有限的场地搭建。
摘要（英）：

The utility model discloses a crane base. The crane base comprises an undercarriage, a rotation gear ring, a rotation bearing and a power device, wherein the rotation gear ring is fixed on the undercarriage; the rotation bearing consists of a bearing inner ring and a bearing outer ring, and the bearing inner ring is fixed on the undercarriage and coaxial with the rotation gear ring; the power device comprises a motor and a gear, the motor is directly or indirectly fixed on the bearing outer ring, and the gear is fixed on a rotor shaft of the motor and engaged with the rotation gear ring, so that the bearing outer ring is driven by the motor to rotate relative to the undercarriage. The crane base is simple in structure, light in weight of a single component, convenient to move, dismount and install, small in floor occupation area and capable of being arranged in the field with limit space.

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