Tower body structure for ship crane

Abstract

The invention discloses a tower body structure for a ship crane. The tower body structure comprises a tower body and a cab. The top of the tower body is provided with a pulley part matched with a steel wire rope, and the bottom of the tower body is provided with a crane jib mounting part matched with a crane jib; the tower body comprises a lower cylinder structure, a middle cone structure and an upper cylinder structure which are connected in turn; the thicknesses of the lower cylinder structure, the middle cone structure and the upper cylinder structure are gradually increased; the diameter of the lower cylinder structure is greater than that of the upper cylinder structure; the lower cylinder structure is provided with a maintenance door hole; the middle cone structure is provided with a ventilating window hole and a cab hole; the upper cylinder structure is provided with an air inlet window hole; and the inner surface of the tower body is welded with reinforcing ring ribs and reinforcing longitudinal ribs. By the design, the requirement on the dimension of the tower body is met under 5-degree visual line, the manufacturing cost is low, the concept of equal strength design can be realized, and the tower body structure has light self weight, high structural strength and high firmness.

Description

technical field [0001] The invention relates to a tower body structure of a crane, in particular to a tower body structure of a marine crane, which is specifically suitable for the tower body structure required by a crane supporting a 57000T ship. Background technique [0002] According to the SOLAS specification of the international safety convention, when the ship is sailing, the overall dimensions of the marine crane must meet the requirements of a 5-degree line of sight. According to this requirement, if a 57000T ship wants to meet the 5-degree line of sight requirement, the overall dimensions of its marine crane must not exceed 2600mm. According to the outline drawing of the marine crane, the outline of the marine crane mainly includes the tower body structure, the driver's cab assembly, the boom assembly, the hook group, and the steel wire rope. The width dimensions of the driver's cab assembly, hook assembly, and wire rope parts are all smaller than the tower body st...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the defects and problems existing in the prior art that cannot meet the requirements of the external dimensions of the tower body under the 5-degree line of sight requirement, uneven force, high manufacturing cost, and weak firmness, and provide a The tower body structure of the marine crane with the requirements of the tower body size, uniform force, low manufacturing cost and strong firmness under the 5-degree line of sight requirement

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