CN220098355U - Double-shaft hinged arm support type offshore crane - Google Patents
Double-shaft hinged arm support type offshore crane Download PDFInfo
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- CN220098355U CN220098355U CN202321647011.XU CN202321647011U CN220098355U CN 220098355 U CN220098355 U CN 220098355U CN 202321647011 U CN202321647011 U CN 202321647011U CN 220098355 U CN220098355 U CN 220098355U
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- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 8
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- 238000010586 diagram Methods 0.000 description 2
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Abstract
The utility model provides a double-shaft hinged arm support type offshore crane in the lifting field. Comprises a stand column, a cantilever base, a cantilever falling device and an electric cabinet; the cantilever base is provided with a rotating device, the side part of the rotating device is provided with a rotating limiting device and a rotating locking device, the upper part of the cantilever base is provided with a rotating shaft, and the rotating shaft comprises a front rotating shaft and a rear rotating shaft which are arranged in parallel; the cantilever is connected to the cantilever base through a front rotating shaft and a rear rotating shaft, a steel wire rope winding mechanism is arranged at the tail end of the cantilever, a fixed pulley is arranged at the head end of the cantilever, and a lifting hook is screwed by the steel wire rope bypassing the fixed pulley; the cantilever tilting device is respectively connected with the upright post and the cantilever. The cantilever tilting device is adopted and combined with the front rotating shaft and the rear rotating shaft, the cantilever and the cantilever base are connected in a double-shaft hinged mode, the rear rotating shaft is disassembled, and the cantilever rotates around the front rotating shaft and is tilted. The potential safety hazard of the overhead maintenance operation of the offshore crane is avoided. The double-shaft hinged arm support type offshore crane is suitable for being used as a double-shaft hinged arm support type offshore crane.
Description
Technical Field
The utility model relates to hoisting equipment in the field of hoisting, in particular to a double-shaft hinged arm support type offshore crane.
Background
The existing cantilever type offshore crane is composed of a stand column, a slewing device, a cantilever device, a hoisting device and the like, and has no luffing mechanism and fixed working amplitude. The hoisting device is arranged at the rear end of the arm support device, the fixed pulley is arranged at the front end of the arm support device, and the steel wire rope is led out of the hoisting device and then bypasses the fixed pulley to install the lifting hook component for hoisting cargoes. When the fixed pulley is required to be repaired or the steel wire rope is required to be replaced, a scaffold is required to be built at a proper position or a temporary boarding Gao Tizi is required to be used for high-altitude operation to complete a work task, inconvenience is brought to maintenance work, particularly an offshore operation environment is brought, the area of an operation platform is limited, in addition, offshore wind power is large, the difficulty of high-altitude operation is increased, and the operation safety is not facilitated.
Disclosure of Invention
Aiming at solving the defects in the prior art and solving the problems that the offshore crane cannot be laid down, overhauled smoothly and replaced by a steel wire rope and pulley assembly, the utility model provides the biaxial hinged arm support type offshore crane. The offshore crane solves the technical problem of overhead operation on the offshore crane cantilever through the cantilever dumping device.
The utility model solves the technical problems by adopting the scheme that:
the double-shaft hinged arm support type offshore crane comprises an upright post, a cantilever base, a cantilever dumping device and an electric cabinet;
the upright posts are arranged on the operation site and used for supporting the offshore crane;
the cantilever base is located at the top of the upright post, a turning device is arranged on the cantilever base to control the offshore crane, and a driving hand wheel is connected with the turning device and can manually control the offshore crane to rotate; the side part of the rotary device is provided with a rotary limiting device and a rotary locking device, the upper part of the cantilever base is provided with a lifting lug, the lifting lug is provided with a rotating shaft, and the rotating shaft comprises a front rotating shaft and a rear rotating shaft which are arranged in parallel;
the cantilever is of a cantilever type structure and is connected to the cantilever base through a front rotating shaft and a rear rotating shaft to form double-shaft hinged connection; the tail end of the cantilever is provided with a steel wire rope winding mechanism, the head end of the cantilever is provided with a fixed pulley, one end of the steel wire rope is hung on the steel wire rope winding mechanism, and the other end of the steel wire rope bypasses the fixed pulley and is tied with a lifting hook for hoisting operation;
one end of the cantilever dumping device is connected with the upright post, and the other end of the cantilever dumping device is connected with the cantilever, and is used for dumping the cantilever when the offshore crane is maintained;
the electric cabinet is arranged near the upright post and is electrically connected with each electric element.
In order to further solve the technical problem to be solved, the cantilever dumping device provided by the utility model comprises an upper hinged support, an upper hinged support pin shaft, a hydraulic jack, a lower hinged support pin shaft, a maintenance pin shaft, a column bottom rib plate and an O-shaped pin;
the upper hinged support is a double-lug support and is connected with the lower part of the tail end of the cantilever, and when the cantilever is laid down or lifted, a supporting point is formed;
the upper hinge support pin roll is a pin roll with a shaft shoulder and is mutually assembled with the upper hinge support;
the shaft lever of the hydraulic jack is connected with the upper hinged support through the upper hinged support pin shaft, and supports the cantilever to fall back when the cantilever is laid down for maintenance; after the maintenance of the offshore crane, lifting the cantilever to lift and reset until the cantilever reaches a working state;
the lower hinged support is of a frame structure, wherein hanging plates are arranged at two ends of the lower hinged support, and the hanging plates at the upper ends of the lower hinged support are connected with the bottom of the hydraulic jack;
the pin shaft of the lower hinged support is a pin shaft with a shaft shoulder, and is matched with a hanging plate at the upper end of the lower hinged support to connect and fix the hydraulic jack;
the pin shaft for maintenance is a pin shaft with a shaft shoulder, is matched with a hanging plate at the lower end of the lower hinged support, and connects the cantilever dumping device on the upright post;
the rib plates at the bottom of the upright post are arrayed on the outer circumference of the bottom of the upright post, so that the installation position of the cantilever dumping device is convenient to adjust, and the cantilever is dumped on a site platform convenient for operation; the rib plate at the bottom of the upright post is connected with the lower end of the lower hinged support through a pin shaft for maintenance, and forms a supporting point when the cantilever is laid down or lifted up;
the O-shaped pin is a cotter pin, penetrates through the upper hinge seat pin shaft, the lower hinge seat pin shaft and the maintenance pin shaft, and axially positions and locks the upper hinge seat pin shaft, the lower hinge seat pin shaft and the maintenance pin shaft.
Further, the front rotating shaft and the rear rotating shaft are cylindrical shafts, and the cantilever base and the cantilever are connected together in a double-shaft hinged manner; when maintenance operation is carried out, the hydraulic jack lifts the cantilever until the rear rotating shaft is loosened, the rear rotating shaft is disassembled, the hydraulic jack retracts, and the cantilever falls down by taking the front rotating shaft as the axis; when maintenance operation is finished, the hydraulic jack supports and lifts the cantilever, when the cantilever is reset, the rear rotating shaft is assembled, the front rotating shaft and the rear rotating shaft are hinged to the cantilever base and the cantilever in a double-shaft mode, and the cantilever enters a working state.
The cantilever tilting device has the advantages that as the cantilever tilting device is adopted and the front rotating shaft and the rear rotating shaft are combined, the cantilever and the cantilever base are connected in a double-shaft hinged mode, the rear rotating shaft is detached, and the cantilever rotates around the front rotating shaft and is tilted. Is convenient for disassembly, maintenance, overhaul and replacement. Simple structure, safe and reliable has avoided the potential safety hazard of marine crane high altitude maintenance operation. The double-shaft hinged arm support type offshore crane is suitable for being used as a double-shaft hinged arm support type offshore crane.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present embodiment;
FIG. 2 is a cross-sectional view of the cantilever lowering device connected to the cantilever;
FIG. 3 is a front view of the boom-up apparatus;
FIG. 4 is a top view of the cantilever setting device;
FIG. 5 is a schematic view showing the working state of the cantilever according to the present embodiment;
fig. 6 is a schematic diagram showing the maintenance state of the cantilever according to the present embodiment.
In the figure:
100. a column;
200. cantilever base 210, slewing gear 211, driving hand wheel 220, slewing limiting device 230, slewing locking device 240, rotating shaft 241, front rotating shaft 242, rear rotating shaft;
300. cantilever, 310, wire rope winding mechanism, 320, wire rope, 330, fixed pulley, 340, lifting hook;
400. the cantilever tilting device comprises a cantilever tilting device 410, an upper hinge seat 420, an upper hinge seat pin shaft 430, a hydraulic jack 440, a lower hinge seat 450, a lower hinge seat pin shaft 460, a maintenance pin shaft 470, a column bottom rib plate and a 480. O-shaped pin;
500. an electric control box.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order to solve the problems of overhauling the offshore crane and replacing the steel wire rope and the pulley assembly, the scaffold is prevented from being built to carry out high-altitude operation, the cantilever 300 is laid down by adopting the cantilever laying down device 400, the high-altitude operation is canceled, and the maintenance operation of the offshore crane can be carried out on a platform of an operation site. The cantilever dumping device 400 is not installed on the offshore crane at ordinary times, is stored in a tower cabin of the offshore crane, and is provided with one or two wind farms. In order to match the cantilever setting device 400 to set the cantilever 300, the rotating shaft 240 of the cantilever 300 is simultaneously modified into a front rotating shaft 241 and a rear rotating shaft 242, so that a double-shaft hinged structure is formed, the setting of the cantilever 300 is ensured, and maintenance operation is performed.
As shown in the figure, the biaxial hinged arm support type offshore crane comprises a stand column 100, an arm base 200, an arm 300, an arm laying device 400 and an electric cabinet 500;
the upright 100 is arranged on an operation site and supports an offshore crane;
the cantilever base 200 is located at the top of the upright post 100, a turning device 210 is arranged on the cantilever base 200 to control the offshore crane, a driving hand wheel 211 is connected with the turning device 210, and the offshore crane can be manually controlled to rotate; a rotation limiting device 220 and a rotation locking device 230 are arranged on the side part of the rotation device 210, a lifting lug is arranged on the upper part of the cantilever base 200, a rotating shaft 240 is assembled on the lifting lug, and the rotating shaft 240 comprises a front rotating shaft 241 and a rear rotating shaft 242 which are arranged in parallel;
cantilever 300 is of a cantilever type structure and is connected to cantilever base 200 through front rotating shaft 241 and rear rotating shaft 242 to form a biaxial hinged connection; a steel wire rope winding mechanism 310 is arranged at the tail end of the cantilever 300, a fixed pulley 330 is arranged at the head end of the cantilever 300, one end of a steel wire rope 320 is hung on the steel wire rope winding mechanism 310, and the other end of the steel wire rope bypasses the fixed pulley 330 and is tied with a lifting hook 340 for lifting operation;
one end of the cantilever tilting device 400 is connected with the upright post 100, the other end is connected with the cantilever 300, and when the cantilever tilting device is used for maintaining the offshore crane, the cantilever 300 can be tilted, so that the steel wire rope 320 and the fixed pulley 330 can be overhauled and replaced on a platform of a working site;
the electric cabinet 500 is installed near the upright post 100 and electrically connected with each electrical component.
In order to ensure the stability of the structure of the present utility model, the cantilever tilting apparatus 400 includes an upper hinge bracket 410, an upper hinge bracket pin 420, a hydraulic jack 430, a lower hinge bracket 440, a lower hinge bracket pin 450, a maintenance pin 460, a column bottom rib 470 and an O-pin 480;
the upper hinge base 410 is a double-ear base, is connected to the lower part of the tail end of the cantilever 300 and is used for assembling the cantilever tilting device 400, and forms a supporting point when the cantilever 300 is tilted or lifted;
the upper hinge support pin 420 is a pin with a shoulder, and is assembled with the upper hinge support 410;
the shaft lever of the hydraulic jack 430 is connected to the upper hinge base 410 through the upper hinge base pin 420, and supports the cantilever 300 to fall back when the cantilever 300 is laid down for maintenance; after the maintenance of the offshore crane, lifting the cantilever 300 to lift and reset until the cantilever 300 reaches a working state;
the lower hinge support 440 has a frame structure in which hanger plates are provided at both ends thereof, and the hanger plates at the upper ends thereof are connected to the bottoms of the hydraulic jacks 430;
the lower hinge seat pin 450 is a pin with a shaft shoulder, and is matched with a hanging plate at the upper end of the lower hinge seat 440 to fixedly connect the hydraulic jack 430;
the maintenance pin 460 is a pin with a shoulder, and is matched with a hanger plate at the lower end of the lower hinge support 440 to connect the cantilever dumping device 400 to the upright 100;
the rib plates 470 at the bottom of the upright post are arrayed on the outer circumference of the bottom of the upright post 100, so that the installation position of the cantilever laying device 400 can be conveniently adjusted, and the cantilever 300 can be laid on a site platform convenient for operation; the column bottom rib plate 470 is connected with the lower end of the lower hinge seat 440 through a maintenance pin shaft 460, and forms a supporting point when the cantilever 300 is laid down or lifted up;
the O-pin 480 is a cotter pin, penetrates through the upper hinge support pin 420, the lower hinge support pin 450 and the maintenance pin 460, and axially positions and locks the upper hinge support pin 420, the lower hinge support pin 450 and the maintenance pin 460.
In this embodiment, since the column bottom rib plates 470 are arrayed on the outer circumference of the bottom of the column 100, when the cantilever lowering device 400 is installed, the upper hinge base 410 may have an opportunity to select which column bottom rib plate 470 is correspondingly connected, and then rotate the offshore crane to rotate the cantilever 300 to a position suitable for maintenance, so that the cantilever 300 can be lowered in an optimum place without building a scaffold, and overhead operations are avoided.
In order to further ensure the stability of the structure of the present utility model, the front rotary shaft 241 and the rear rotary shaft 242 are cylindrical shafts, and the cantilever base 200 and the cantilever 300 are connected together in a biaxial hinge manner; when maintenance is performed, the hydraulic jack 430 lifts the cantilever 300 until the rear rotating shaft 242 is loosened, the rear rotating shaft 242 is disassembled, the hydraulic jack 430 is retracted, and the cantilever 300 falls down with the front rotating shaft 241 as the axis; when the maintenance operation is finished, the hydraulic jack 430 lifts the cantilever 300, and when the cantilever 300 is reset, the rear rotating shaft 242 is assembled, the front rotating shaft 241 and the rear rotating shaft 242 are hinged to the cantilever base 200 and the cantilever 300 in a double-shaft manner, and the cantilever 300 enters a working state.
In this embodiment, since the cantilever base 200 is connected with the cantilever 300 in a biaxial hinge manner, when the cantilever 300 is in a maintenance state, only the rear rotating shaft 242 needs to be disassembled, the cantilever base 200 and the cantilever 300 only have one connecting point of the front rotating shaft 241, and the cantilever 300 rotates and swings around the front rotating shaft 241, i.e. the cantilever 300 is put down for maintenance, so that hidden danger caused by high-altitude operation is avoided, and the device is safe and reliable.
In order to optimize the structure of the present utility model, the cantilever lowering apparatus 400 is assembled between the column 100 and the cantilever 300 during maintenance of the offshore crane, and the cantilever 300 is lowered to replace the wire rope 320 or the fixed sheave 330.
In order to more optimize the structure of the present utility model, when the cantilever 300 is in the working state, the cantilever dumping device 400 is not required to be mounted on an offshore crane, and is integrally disassembled and stored in the tower nacelle for standby.
Alternatively, the upper hinge base 410 is welded to the lower portion of the rear end of the cantilever 300, and the column bottom rib 470 is welded to the outer circumference of the bottom of the column 100 for standby.
Preferably, a roller for lifting the wire rope 320 is arranged at the upper part of the tail end of the cantilever 300, so that the cantilever 300 is prevented from being scraped after being laid down.
The working procedure of this embodiment is:
installation of the cantilever tilting device 400:
when the wire rope reeling mechanism 310 is required to be overhauled, the driving hand wheel 211 of the turning device 210 is driven to rotate the cantilever 300 to a position suitable for overhauling, and then the cantilever dumping device 400 is installed. The maintenance pin shaft 460 of the cantilever tilting device 400 is fixedly connected with the rib plate 470 at the bottom of the upright post, the lower hinge seat pin shaft 450 fixedly connects the hydraulic jack 430 and the lower hinge seat 440, the handle of the hydraulic jack 430 is rocked to enable the hole on the head of the shaft rod to coincide with the center line of the hole of the upper hinge seat 410 of the cantilever, and the hydraulic jack is fixed by the upper hinge seat pin shaft 420.
Tilting of cantilever 300:
the handle bar of the hydraulic jack 430 is rocked to slightly raise the cantilever 300 until the rear rotary shaft 242 is loosened, the rear rotary shaft 242 is manually removed, the handle bar is removed, the hydraulic jack 430 is rotated to drain the oil screw, and the shaft is slowly retracted until stopping.
Reset of cantilever 300:
after the cantilever 300 is laid down, the steel wire rope 320 and the fixed pulley 330 can be overhauled, after the overhauling operation is finished, the handle rod is rocked to enable the cantilever 300 to be lifted and reset, the rotating shaft 242 is installed, and after the overhauling operation is finished, the cantilever laying down device 400 is dismantled and properly stored.
The characteristics of the present embodiment:
1. because cantilever 300 and cantilever base 200 are connected in a biaxial hinge manner, it is convenient to disassemble, maintain, overhaul and replace.
2. The cantilever 300 can be smoothly laid down by using the cantilever laying device 400, so that the steel wire rope 320 and the pulley 330 are convenient to overhaul and replace, the structure is simple, the method is economical and practical, the safety and the reliability are high, and the difficulty in maintenance of a crane hoisting mechanism is solved.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The description of the present utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. Double-shaft hinged arm support type offshore crane, which is characterized in that: comprising the following steps:
the stand column (100) is arranged on an operation site and used for supporting the offshore crane;
the cantilever base (200), the cantilever base (200) is located at the top of the upright post (100), a turning device (210) is arranged on the cantilever base (200) to control the offshore crane, a driving hand wheel (211) is connected with the turning device (210), and the offshore crane can be manually controlled to rotate; a rotation limiting device (220) and a rotation locking device (230) are arranged on the side part of the rotation device (210), a lifting lug is arranged on the upper part of the cantilever base (200), a rotating shaft (240) is assembled on the lifting lug, and the rotating shaft (240) comprises a front rotating shaft (241) and a rear rotating shaft (242) which are arranged in parallel;
the cantilever (300) is of a cantilever type structure, and is connected to the cantilever base (200) through the front rotating shaft (241) and the rear rotating shaft (242) to form biaxial hinged connection; a steel wire rope winding mechanism (310) is arranged at the tail end of the cantilever (300), a fixed pulley (330) is arranged at the head end of the cantilever (300), one end of a steel wire rope (320) is hung on the steel wire rope winding mechanism (310), and the other end of the steel wire rope bypasses the fixed pulley (330) and is tied with a lifting hook (340) for lifting operation;
the cantilever dumping device (400) is characterized in that one end of the cantilever dumping device (400) is connected with the upright post (100), the other end of the cantilever dumping device is connected with the cantilever (300), and the cantilever (300) is dumped when the cantilever dumping device is used for maintaining an offshore crane; and
the electric control box (500) is arranged near the upright post (100) and is electrically connected with each electric element.
2. The biaxial hinged boom type offshore crane according to claim 1, characterized in that: the cantilever setting-down device (400) includes:
the upper hinge support (410) is a double-lug support, is connected with the lower part of the tail end of the cantilever (300), and forms a supporting point when the cantilever (300) is laid down or lifted;
the upper hinge support pin shaft (420), wherein the upper hinge support pin shaft (420) is a pin shaft with a shaft shoulder, and is mutually assembled with the upper hinge support (410);
the shaft lever of the hydraulic jack (430) is connected with the upper hinged support (410) through the upper hinged support pin shaft (420), and supports the cantilever (300) to fall back when the cantilever (300) is laid down for maintenance; after the maintenance of the offshore crane, lifting the cantilever (300) to lift and reset until the cantilever (300) reaches a working state;
the lower hinged support (440) is of a frame structure, wherein hanging plates are arranged at two ends of the lower hinged support (440), and the hanging plates at the upper ends of the lower hinged support are connected with the bottom of the hydraulic jack (430);
the lower hinge support pin shaft (450) is a pin shaft with a shaft shoulder, and is matched with a hanging plate at the upper end of the lower hinge support (440) to fixedly connect the hydraulic jack (430);
the pin shaft (460) for maintenance is a pin shaft with a shaft shoulder, and is matched with a hanging plate at the lower end of the lower hinged support (440) to connect the cantilever dumping device (400) to the upright post (100);
the column bottom rib plates (470), wherein the column bottom rib plates (470) are arrayed on the outer circumference of the bottom of the column (100), so that the installation position of the cantilever dumping device (400) can be conveniently adjusted, and the cantilever (300) can be dumped on a site platform convenient for operation; the column bottom rib plate (470) is connected with the lower end of the lower hinged support (440) through the maintenance pin shaft (460), and forms a supporting point when the cantilever (300) falls down or is lifted up; and
the O-shaped pin (480), the O-shaped pin (480) is a cotter pin, penetrates through the upper hinge seat pin (420), the lower hinge seat pin (450) and the maintenance pin (460), and axially positions and locks the upper hinge seat pin (420), the lower hinge seat pin (450) and the maintenance pin (460).
3. The biaxial hinged boom type offshore crane according to claim 2, characterized in that:
the front rotating shaft (241) and the rear rotating shaft (242) are cylindrical shafts, and the cantilever base (200) and the cantilever (300) are connected together in a biaxial hinged mode; when maintenance is performed, the hydraulic jack (430) lifts the cantilever (300) until the rear rotating shaft (242) is loosened, the rear rotating shaft (242) is disassembled, the hydraulic jack (430) is retracted, and the cantilever (300) falls down with the front rotating shaft (241) as the axis; when the maintenance operation is finished, the hydraulic jack (430) lifts the cantilever (300), when the cantilever (300) is reset, the rear rotating shaft (242) is assembled, the front rotating shaft (241) and the rear rotating shaft (242) are used for connecting the cantilever base (200) with the cantilever (300) in a double-shaft hinged mode, and the cantilever (300) enters a working state.
4. The biaxial hinged boom type offshore crane according to claim 1, characterized in that:
the cantilever lowering device (400) is assembled between the upright post (100) and the cantilever (300) when the offshore crane is maintained, and the cantilever (300) is lowered.
5. The biaxial hinged boom type offshore crane according to claim 1, characterized in that:
when the cantilever (300) is in a working state, the cantilever dumping device (400) is not required to be installed on an offshore crane, is integrally disassembled and is stored in a tower cabin for standby.
6. The biaxial hinged boom type offshore crane according to claim 2, characterized in that:
the upper hinge support (410) is welded at the lower part of the tail end of the cantilever (300), and the column bottom rib plate (470) is welded on the outer circumference of the bottom of the column (100) for standby.
7. The biaxial hinged boom type offshore crane according to claim 1, characterized in that:
the upper part of the tail end of the cantilever (300) is provided with a roller for lifting the steel wire rope (320), so that the cantilever (300) is prevented from being scratched after being laid down.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202321647011.XU CN220098355U (en) | 2023-06-27 | 2023-06-27 | Double-shaft hinged arm support type offshore crane |
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CN202321647011.XU CN220098355U (en) | 2023-06-27 | 2023-06-27 | Double-shaft hinged arm support type offshore crane |
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CN202321647011.XU Active CN220098355U (en) | 2023-06-27 | 2023-06-27 | Double-shaft hinged arm support type offshore crane |
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