Telescopic arm type electric cantilever crane
A telescopic boom and cantilever crane technology, which is applied in the directions of cranes, transportation and packaging, can solve the problems of low rooting and fixing strength of cantilever cranes, inconvenient transfer of rooting and fixing locations, etc.
Pending Publication Date: 2020-10-27
HEFEI KIWI HEAVY MACHINERY CO LTD
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Problems solved by technology
[0004] The object of the present invention is to provide a telescopic arm type electric cantilever crane, which is used to solve the problems of the current cantilever crane with low rooting and fixing strength and inconvenient transfer of rooting and fixing places
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] see Figure 1-7 , the present invention provides a technical solution, a telescopic arm type electric cantilever crane, comprising a column 1, a cantilever 2, a rotary drive device 3 and an electric hoist 4, the bottom end of the column 1 is connected with a base 5, and the base 5 includes several fixed Plate 51, the upper surface of the fixed plate 51 near the outer end is fitted with a fixed rod 6 through a through hole, and the side wall near the top...
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The invention relates to the technical field of hoisting devices, in particular to a telescopic arm type electric cantilever crane. The electric cantilever crane is characterized in that a base connected to the bottom end of a stand column comprises a plurality of fixing plates, threaded rods are rotationally connected to the side walls of fixing rods which are arranged at the positions, close tothe outer ends, of fixing plates in a sleeved mode through through holes, connecting seats are rotationally connected to the top ends of threaded sleeves connected with to top ends of the threaded rods in a threaded and sleeving mode, and the connecting seats are rotationally arranged on lug seats on the side wall of the stand column; core sleeve pipes are fixedly connected to the top faces of inner cavities of rotating sleeves connected to the top ends of the fixing rods in a threaded and sleeving mode, and center sleeve rods are rotationally connected to the bottom ends of the core sleeve pipes; barb nails are arranged in inclined holes formed in the side walls of the fixing rods in the obliquely-upward direction in a sleeved mode, and the bottom ends of the barb nails are located in grooves formed in the outer walls of the center sleeve rods; and springs are connected to the top faces of cylindrical grooves formed in the lower surfaces, close to the inner ends, of the fixing plates,the bottom ends of the springs are connected with circular plates, and rolling balls are arranged at the positions, below the circular plates, of inner cavities of the cylindrical grooves. The problems that an existing cantilever crane is small in rooting fixing strength and is inconvenient to transfer a rooting fixing place are solved.
Description
technical field [0001] The invention relates to the technical field of lifting devices, in particular to a telescopic arm type electric cantilever crane. Background technique [0002] Cantilever cranes are industrial components and are light-duty working-strength cranes. The cantilever crane is generally composed of a column, a cantilever, a rotary drive device and an electric hoist; the rotary drive device drives the cantilever to rotate, and the electric hoist runs left and right on the cantilever in a straight line to lift heavy objects. The cantilever of the crane is a hollow steel structure, which has the advantages of light weight, large span, large lifting capacity, economy and durability. Among them, the cantilever can also be telescopic to increase the lifting coverage. [0003] However, the currently commonly used cantilever cranes generally can only use anchor bolts to root at fixed locations. Not only is the strength of rooting and fixing insufficient, but it i...
Claims
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IPC IPC(8): B66C23/04B66C23/687B66C23/84B66C23/62
CPCB66C23/04B66C23/701B66C23/84B66C23/62B66C2700/03
Inventor 龚子运
Owner HEFEI KIWI HEAVY MACHINERY CO LTD