Marine bridge type double-beam annular crane

Abstract

A marine bridge type double-beam annular crane comprises a stand column (1), an annular track (2) and a cross beam track (3), the bottom of the stand column (1) is connected with a deck through a bolt, the top of the stand column (1) is connected with the annular track (2) through a flange, and the cross beam track (3) is arranged on the annular track (2). The device can realize the control of underwater lifting, rotating and other states of a large-scale model, and has the characteristics of wide operation range, simple structure, convenience in maintenance, low wheel pressure, low energy consumption, high safety performance and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering machinery, and in particular relates to a marine bridge type double-beam ring crane. Background Art

[0002] At present, there are relatively few ring cranes, which are mainly used on land. Ring cranes are mainly composed of support frame, ring track, travel mechanism, main beam and trolley. The ring track is installed on the support frame, which provides support for the ring track; the ring track is a circular track as a walking track; the main beam can rotate on the ring track through the travel mechanism, and the travel mechanism provides the power for rotation; the trolley is arranged on the main beam and can move straight along the main beam. Since it is mainly used on land, the travel mechanism, main beam and trolley are relatively stable when moving, and the design is selected according to a relatively stable environment. For the marine environment, considering the influence of wind and waves, the entire structure often tilts and sways, but the land-based cranes did not take this into account when designing, and did not meet the requirements of marine working conditions. If used in a marine environment, the first thing to solve is the influence of tilt and sway on the structure, and the design and selection calculation should also consider this factor. It is the first time that a bridge-type double-beam ring crane has been used in a marine environment. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a marine bridge type double-beam ring crane which can realize the control of underwater hanging, rotation and other states of large-scale models.

[0004] The present invention provides a ship-mounted double-beam annular crane, comprising a column (1), an annular track (2) and a crossbeam track (3), wherein the bottom of the column (1) is connected to a deck via bolts, the top of the column (1) is connected to the annular track (2) via a flange, and the crossbeam track (3) is arranged on the annular track (2).

[0005] As a further technical solution of the present invention, the column (1) is a truss structure (102), the main beam of the truss structure (102) is made of thick steel pipes, and the web members are welded from thin steel pipes. The bottom of the truss structure (102) is bolted to the deck via a lower flange (101), and the top of the truss structure (102) is bolted to the annular track (2) via an upper flange (103).

[0006] Furthermore, the annular track (2) comprises an annular box girder (201), a revolving walking track (202) and a driving track (203); the annular box girder (201) has a rectangular cross-section; flat steel is welded on the inner plane of the annular box girder (201); supporting ribs are arranged inside the box girder to form the revolving walking track (202); the driving track (203) is installed at the bottom of the annular box girder (201); and the driving track (203) adopts a pin-tooth transmission track.

[0007] Furthermore, the crossbeam track (3) includes a trolley walking mechanism (301), a trolley walking drive mechanism (302), a trolley anti-tilt device (303), a bridge-type double-beam structure (304), a mounting platform (305), a trolley (306), a trolley walking track (307), a trolley driving track (308) and a lifting drive mechanism (309);

[0008] The trolley travel mechanism (301) comprises a mounting bracket, a rotating shaft and wheels, and the mounting bracket can rotate around the rotating shaft;

[0009] The trolley travel drive mechanism (302) is driven by a drive motor to drive a reducer, and a pinion on the reducer meshes with a pinion on the inner side of the annular track for transmission;

[0010] The trolley anti-tilt device (303) adopts a horizontal wheel, including a roller, a bracket and a connecting bolt, and there is a gap between the horizontal wheel and the circular track;

[0011] The bridge-type double-beam structure (304) and the installation platform (305) are welded in a box-section form;

[0012] Trolley 306 adopts dual motors to drive the reducer and is equipped with horizontal wheels. The horizontal wheels are mainly composed of rollers, brackets, connecting bolts, etc. There is a certain gap between the horizontal wheels and the trolley running track to ensure safe operation under tilting and swinging conditions;

[0013] The trolley running track (307) adopts standard steel rail;

[0014] The trolley driving track (308) is composed of a multi-section rack installed on the inner side of the main beam, arranged in a downward direction, and driven by the meshing of the output gear of the reducer and the rack;

[0015] The lifting drive mechanism (309) adopts a winch and is installed on a base, and the base is installed on a mounting platform.

[0016] The advantage of the present invention is that the device can realize the control of underwater hanging, rotation and other states of large-scale models, and has the characteristics of wide operating range, simple structure, convenient maintenance, low wheel pressure, low energy consumption, high safety performance, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the column structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the annular track structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the beam track structure of the present invention. DETAILED DESCRIPTION

[0021] See also Figure 1 This embodiment provides a marine bridge double-beam annular crane of the present invention, which is mainly composed of a column 1, an annular track 2 and a beam track 3. The column 1 is connected to the deck A with bolts, and the top is also connected to the annular track 2 with bolts through a flange. The beam track 3 is placed on the annular track 2 and can rotate 360 ​​degrees. The beam track 3 contains two trolleys that can move freely on the beam track 3, so as to achieve the maximum range of lifting and lowering.

[0022] like Figure 2 As shown, the columns adopt a truss structure 102. In order to ensure sufficient strength and rigidity, the main beams are made of thick steel pipes and the web members are welded with thin steel pipes. The bottom is bolted to the deck A through the lower flange 101, and the top is also bolted to the circular track 2 through the upper flange 103, which is easy to disassemble and transport.

[0023] like Figure 3 As shown, the annular track 2 is mainly composed of a bearing annular box beam 201, a revolving running track 202 and a driving track 203. The annular box beam 201 adopts a rectangular cross-section, and a flat steel is welded in the annular box beam 201, and a supporting rib is added inside the box beam to form the revolving running track 202, so that when the ship tilts, the wheels can move flexibly and prevent jamming; the driving track 203 adopts a pin gear transmission track, which has a simple structure and is easy to manufacture and maintain.

[0024] like Figure 4 As shown, the beam track 3 is mainly composed of a trolley traveling mechanism 301, a trolley traveling drive mechanism 302, a trolley anti-tilt device 303, a bridge-type double-beam structure 304, an installation platform 305, a trolley 306, a trolley traveling track 307, a trolley driving track 308 and a lifting drive mechanism 309.

[0025] The trolley travel mechanism 301 is mainly composed of a mounting bracket, a rotating shaft and wheels, etc. The mounting bracket can rotate around the rotating shaft to avoid poor operation of the wheels;

[0026] The trolley travel drive mechanism 302 is mainly driven by a drive motor to drive a reducer, and the pinion on the reducer meshes with the pin teeth on the inner side of the circular track for transmission;

[0027] The trolley anti-tilt device 303 adopts a horizontal wheel, which is mainly composed of a roller, a bracket, a connecting bolt, etc., and has a certain gap with the circular track. When working, it can maintain the stable operation of the beam track on the circular track, ensuring safe operation under tilting and swinging conditions;

[0028] The bridge-type double-beam structure 304 and the mounting platform 305 are welded in a box-section form;

[0029] Trolley 306 adopts dual motors to drive the reducer and is equipped with horizontal wheels. The horizontal wheels are mainly composed of rollers, brackets, connecting bolts, etc. There is a certain gap between the horizontal wheels and the trolley running track to ensure safe operation under tilting and swinging conditions;

[0030] The trolley running track 307 adopts standard steel rail;

[0031] The trolley driving track 308 is mainly composed of a multi-section rack installed on the inner side of the main beam, arranged in a downward direction, and driven by the meshing of the output gear of the reducer and the rack;

[0032] The lifting drive mechanism 309 adopts a customized winch, and all parts are installed on the base as a whole and installed on the mounting platform.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above specific embodiments. The above specific embodiments and the description in the specification are only for further illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of the present invention to be protected is defined by the claims and their equivalents.

Claims

1. A marine bridge type double-beam ring crane, characterized in that: It comprises a column (1), a circular track (2) and a beam track (3), wherein the bottom of the column (1) is connected to the deck via bolts, the top of the column (1) is connected to the circular track (2) via a flange, and the beam track (3) is arranged on the circular track (2); The crossbeam track (3) comprises a trolley travel mechanism (301), a trolley travel drive mechanism (302), a trolley anti-tilt device (303), a bridge-type double-beam structure (304), a mounting platform (305), a trolley (306), a trolley travel track (307), a trolley drive track (308) and a lifting drive mechanism (309); The trolley travel mechanism (301) comprises a mounting bracket, a rotating shaft and wheels, and the mounting bracket can rotate around the rotating shaft; The trolley travel drive mechanism (302) is driven by a drive motor to drive a reducer, and a pinion on the reducer meshes with a pinion on the inner side of the annular track for transmission; The trolley anti-tilt device (303) adopts a horizontal wheel, including a roller, a bracket and a connecting bolt, and there is a gap between the horizontal wheel and the circular track; The bridge-type double-beam structure (304) and the installation platform (305) are welded in a box-section form; The trolley (306) uses a dual-motor drive reducer and is equipped with a horizontal wheel. The horizontal wheel mainly consists of a roller, a bracket, and a connecting bolt. There is a certain gap between the trolley and the walking track to ensure safe operation under tilting and swinging conditions. The trolley running track (307) adopts standard steel rail; The trolley driving track (308) is composed of a multi-section rack installed on the inner side of the main beam, arranged in a downward direction, and driven by the meshing of the output gear of the reducer and the rack; The lifting drive mechanism (309) adopts a winch and is installed on a base, and the base is installed on a mounting platform.

2. A marine bridge type double-beam ring crane according to claim 1, characterized in that: The column (1) is a truss structure (102), the main beam of the truss structure (102) is made of thick steel pipes, and the web members are welded from thin steel pipes. The bottom of the truss structure (102) is bolted to the deck via a lower flange (101), and the top of the truss structure (102) is bolted to the annular track (2) via an upper flange (103).

3. A marine bridge type double-beam ring crane according to claim 1, characterized in that: The annular track (2) comprises an annular box girder (201), a revolving walking track (202) and a driving track (203); the annular box girder (201) adopts a rectangular cross-section; flat steel is welded on the inner plane of the annular box girder (201); support ribs are arranged inside the box girder to form the revolving walking track (202); the driving track (203) is installed at the bottom of the annular box girder (201); and the driving track (203) adopts a pin-tooth transmission track.

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