The invention discloses a cantilever crane. The cantilever crane comprises a base and a supporting column. A mounting seat is arranged at the top of the base. A plurality of connecting rods are arranged at the bottom of the supporting column at intervals. A rolling wheel is arranged at one end of each connecting rod and arranged at the top of the mounting seat. The outer wall of the supporting column is sleeved with a supporting plate. A first through hole is formed in one side of the top of the supporting plate. A first rolling bearing is arranged in the first through hole. A first rotary shaft is arranged on the inner wall of the first rolling bearing. The outer wall of the mounting seat is sleeved with an annular rack. The outer wall of the first rotary shaft is sleeved with a first gear. The first gear is engaged with the annular rack. Three second through holes are formed in the top of the supporting plate at intervals. Second rolling bearings are arranged in the second through holes. Second rotary shafts are arranged on the inner walls of the second rolling bearings. The positions, below the supporting plate, of one ends of the second rotary shafts are sleeved with second gears. The second gears are engaged with the annular rack. The cantilever crane is convenient and fast to use, shaking of the supporting column can be reduced, and the stability of the supporting column can be improved conveniently.
本发明公开了一种悬臂起重机,包括底座和支撑柱,底座顶部设有安装座,支撑柱底部间隔设有若干个连接杆,若干个是连接杆一端均设有滚轮,滚轮设于安装座顶部,支撑柱外壁套设有支撑板,支撑板顶部一侧开设有第一通孔,第一通孔内设有设有第一滚动轴承,第一滚动轴承内壁设有第一转轴,安装座外壁套设有环形齿条,第一转轴外壁套设有第一齿轮,第一齿轮和环形齿条相啮合,支撑板顶部一圈间隔开设有三个第二通孔,第二通孔内设有第二滚动轴承,第二滚动轴承内壁设有第二转轴,第二转轴一端于支撑板下方套设有第二齿轮,第二齿轮和环形齿条相啮合。本发明使用方便快捷,可实现减少支撑柱的晃动,便于增加支撑柱的稳定性。
Cantilever crane
一种悬臂起重机
2021-07-09
Patent
Electronic Resource
Chinese
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