Manufacturing method of front strut of marine crane
A manufacturing method and crane technology, applied in the direction of manufacturing tools, assembly machines, auxiliary welding equipment, etc., can solve the problem that the front strut cannot be positioned and connected, the main support rod and the hinge point assembly are easily deformed, and the size of the tail hinge point assembly cannot be guaranteed Precision and other issues to achieve the effect of preventing welding deformation, preventing deformation, and ensuring manufacturing accuracy
Active Publication Date: 2021-07-09
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0003] At present, when manufacturing the front strut, usually the main strut and auxiliary strut of the front strut are welded first, and then the tail hinge point assembly is welded on the afterbody of the main strut, but in the welding process, the main strut Rods and hinge point components are prone to deformation, so the dimensional accuracy of the rear hinge point components cannot be guaranteed, making it impossible for the front strut to be pinned and connected to the turntable
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[0062] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0063] In order to better understand the present invention, the structure of the front strut is briefly described below:
[0064] figure 1 It is a structural schematic diagram of a front strut provided by an embodiment of the present invention, such as figure 1 As shown, the front strut 10 includes two main struts 11 , multiple secondary struts 12 , a connecting plate 13 and a hinge assembly 14 . Wherein the connecting plate 13 is welded on one end of the two main support rods 11 , and the two hinge point assemblies 14 are respectively welded on the other ends of the two main support rods 11 .
[0065] The two main support rods 11 are arranged symmetrically with respect to the central line P, the distance between one ends of the two ...
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The invention discloses a method for manufacturing a front strut of a maritime crane, belonging to the technical field of cranes. The method includes: installing and welding hinge point components with coaxial fixed tooling; installing and welding two main support rods on an assembly platform; installing and welding a plurality of secondary support rods on the assembly platform; installing and welding a connecting plate at one end of the two main support rods The other ends of the two main support rods are provided with a main support rod positioning tool; the other ends of the two main support rods are respectively assembled and welded with the hinge point assembly; the other ends of the two main support rods are An inspection tool is installed between the two hinge point assemblies; a plurality of auxiliary support rods are installed and welded between the two main support rods; the coaxial fixing tool, the main support rod positioning tool and the Check the tooling described above to get the front strut. Adopting the manufacturing method provided by the invention to manufacture the front strut can prevent the front strut from being deformed in the welding process and ensure the manufacturing accuracy of the front strut.
Description
technical field [0001] The invention relates to the technical field of cranes, in particular to a method for manufacturing a front strut of a marine crane. Background technique [0002] The front strut is an important supporting component of a marine crane, on which there is a pulley block, and a steel wire rope is wound on the pulley block, and the boom is pulled up by the wire rope, so the front strut is an important stress-bearing component. The hinge point assembly at the rear of the front strut needs to be positioned and locked with the hinge point of the turntable through the pin shaft, and there is an external interface, so its dimensional accuracy is very high. [0003] At present, when manufacturing the front strut, usually the main strut and auxiliary strut of the front strut are welded first, and then the tail hinge point assembly is welded on the afterbody of the main strut, but in the welding process, the main strut The rod and hinge point assembly are prone to...
Claims
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IPC IPC(8): B23P21/00B23K37/04B23K31/02
CPCB23K31/02B23K37/04B23K37/0443
Inventor 方松戴明飞杨新明
Owner WUHAN MARINE MACHINERY PLANT