CN218809976U - Transport trolley for deck - Google Patents

Abstract

The utility model relates to a transfer trolley for a deck, which comprises a portal frame beam, a trolley frame, a lifting mechanism, a balance beam and a clamping jaw; the portal beam spans the deck and can move on the deck along the direction of the main beam of the ship; the bottom of the trolley frame is arranged on a cross rod of the portal frame beam and can move along the axial direction of the cross rod; the lifting mechanism comprises a plurality of telescopic assemblies, and the telescopic assemblies are distributed below two sides of the trolley frame; the balance beam is connected with a plurality of telescopic assemblies through the top and is suspended below the trolley frame and the cross rod, and a clamping jaw is fixed on the balance beam. Compared with the prior art, the utility model realizes XY two-dimensional plane operation on the deck by the cooperation of the portal frame beam and the trolley frame, and the trolley can cover all working planes; meanwhile, the transfer trolley is also provided with a lifting mechanism, so that XYZ three-dimensional space operation can be executed, the working requirement is met, and the working efficiency is improved.

Description

Transport trolley for deck

Technical Field

The utility model belongs to the technical field of mechanical equipment and specifically relates to a transport dolly is used on deck is related to.

Background

The ocean platform deck structure body mainly comprises a panel, a steel beam, a supporting column and other parts, dozens of steel plate raw materials are welded into an integral deck plane in a splicing mode in the manufacturing process, installation positions of the parts such as the steel beam, the supporting column and the like are planned and drawn on the deck panel, the steel beam, the supporting column and the other parts are installed according to the process and are welded and fixed to form a basic deck plate structure body, and finally a plurality of deck plate structures are combined, spliced and built and configured with other equipment facilities, and finally the basic ocean platform structure body is built.

In the manufacturing process, the required specific section steel needs to be taken out from the material stacking position, in the obtaining process, the number, the shape and the direction of the section steel are firstly identified, the steel beam piece is taken out and transferred to a specified position according to an optimal route, and the displacement route, the direction angle and the height of the section steel are adjusted in the transferring process, so that interference or collision with other parts on the displacement route is avoided. After the steel sections are transported to the designated positions, the direction angle, the height and the connector size of the steel sections are adjusted according to the structural manufacturing requirements, and the steel sections are assembled in place.

The length and width of a general ocean platform deck structure body are dozens of meters, the installation group is needed to install hundreds of beams or even hundreds of beams, the lifting installation of the existing manual operation crane is mainly realized, multiple persons are needed to cooperate together, the working strength is high, the position of a manual hook is not appropriate, the manual hook is easy to rework, the working efficiency is low, and the safety problem is also existed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transport trolley for deck in order to overcome the defects of the prior art.

The purpose of the utility model can be realized by the following technical proposal:

a transfer trolley for a deck comprises a portal frame beam, a trolley frame, a lifting mechanism, a balance beam and a clamping jaw;

the portal beam spans the deck and can move on the deck along the direction of the main beam of the ship;

the bottom of the trolley frame is arranged on a cross rod of a portal frame beam and can move along the axial direction of the cross rod;

the lifting mechanism comprises a plurality of telescopic assemblies, and the telescopic assemblies are distributed below two sides of the trolley frame;

the balance beam is connected with a plurality of telescopic assemblies through the top, is suspended below the trolley frame and the cross rod, and is fixed with a clamping jaw.

In another preferred example, the telescopic assembly comprises a lifting motor, an outer tube, an inner tube and a lead screw, one end of the lead screw is connected with the lifting motor positioned at the top of the outer tube, the inner tube is arranged in the outer tube and is connected with a moving seat of the lead screw, and the bottom of the inner tube is hinged with a balance beam.

In another preferred example, the number of the telescopic assemblies is three, the bottoms of the three telescopic assemblies are hinged with the top surface of the balance beam through spherical hinges, the three telescopic assemblies are distributed at three vertexes of a triangle, and the clamping jaws are suspended and fixed at the bottom of the balance beam through the rotating module.

In another preferred example, the rotating module includes a rotating drive motor, a rotating frame, and a rotating support, the rotating support is cylindrical and is fixed to the bottom of the balance beam, the rotating frame is sleeved on the rotating support, and the rotating drive motor drives the rotating frame to rotate around the rotating support.

In another preferred example, the rotating driving motor is fixed on the balance beam, an output shaft of the rotating driving motor is connected with a rotating gear, an annular rack is fixed on an outer ring of the rotating frame, and the annular rack is meshed with the rotating gear on the output shaft.

In another preferred example, the support legs of the portal frame beam are moved by the drive mechanism along guide rails on the deck, which are arranged in the direction of the main beam;

the rear end of the driving mechanism is fixed with a sliding block, the front end of the supporting leg is provided with a horizontal sliding rail perpendicular to the guide rail, and the horizontal sliding rail is used for being in butt joint with the sliding block.

In another preferred example, the driving mechanism comprises a bracket, and a guide wheel module and a driving module which are installed on the bracket, wherein the guide wheel module and the driving module respectively clamp the guide rail from two sides, and the horizontal sliding rail is fixed on the bracket.

In another preferred example, the driving module comprises a trolley motor and a driving gear connected with an output shaft of the trolley motor, one side of the guide rail is provided with a linear rack, and the driving gear is meshed with the linear rack.

In another preferred example, the guide wheel module includes an eccentric shaft including a first shaft and a second shaft fixed to a bottom of the first shaft, and axes of the first shaft and the second shaft are arranged to be staggered, and a guide wheel fixed to the second shaft for contacting the guide rail.

In another preferred example, the guide wheel module further includes an anti-rotation plate, the anti-rotation plate is provided with a through hole in a geometric shape, a cylinder in a shape matching the through hole is arranged at the top of the first shaft rod, and after the through hole of the anti-rotation plate is connected with the cylinder, one side edge of the anti-rotation plate abuts against the bracket to limit the rotation of the anti-rotation plate;

the outer edge of the anti-rotation plate is a first regular polygon, the through hole of the anti-rotation plate is a second regular polygon, and the first regular polygon and the second regular polygon are coaxially arranged.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model relates to a transfer trolley, which realizes XY two-dimensional plane operation on a deck by matching a portal beam and a trolley frame, and the trolley can cover all working planes; meanwhile, the transfer trolley is also provided with a lifting mechanism, so that XYZ three-dimensional space operation can be performed, the working requirement is met, and the working efficiency is improved.

2. The utility model forms a posture adjusting structure by the telescopic component and the balance beam, and the balance beam is connected with the clamping jaw by the rotating module; when attitude adjustment structure moved, three flexible subassemblies can synchronous drive or asynchronous drive compensating beam, and rotation module drives the clamping jaw rotatory for the clamping jaw can initiatively adjust gesture and angle on a large scale, realizes snatching the multi-angle of girder steel, satisfies the ocean platform deck and builds the demand, and has good bearing capacity.

3. The rotary module adopts a nested structure of a rotary frame and a rotary support, and then the rotary support and the rotary driving motor are connected by adopting the meshing of rotary gears.

4. The utility model discloses a stabilizer blade that actuating mechanism drove the portal frame roof beam removes along the guide rail to set up horizontal slide rail and slider between actuating mechanism and stabilizer blade, can change when the stabilizer blade when load and non-load state and the clearance between the guide rail, actuating mechanism takes place relative position through horizontal slide rail and slider and stabilizer blade and removes, still keeps original precision with the guide rail, ensures normal work.

5. The driving module drives the mechanism to move through the driving gear structure matched with the guide wheel, and the movement is smooth and stable.

6. The eccentric shaft is arranged in the guide wheel module to fix the guide wheel, the gap between the guide wheel and the driving module can be adjusted by rotating the eccentric shaft, the most appropriate gap between the guide wheel and the driving module and the guide rail is ensured, the running precision of the driving module is ensured, and the driving module can be applied to the intelligent pairing portal.

7. The guide wheel module is provided with an anti-rotation plate, so that the adjusted eccentric shaft can be locked, the rotation angle of the eccentric shaft is prevented from changing, and the reliability is high; meanwhile, the outer edge and the through hole of the anti-rotation plate are of a regular polygon with the same axis, the shape structure can evenly subdivide the rotating angle, and meanwhile, the angle fine adjustment and the fixation of the eccentric shaft are considered.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the trolley frame, the lifting mechanism and the clamping jaw.

Fig. 3 is a schematic structural view of the lifting mechanism.

Fig. 4 is a schematic structural diagram of the rotating module.

FIG. 5 is a schematic front view of the work state in which the center of gravity of the work piece is outside the triangular region.

FIG. 6 is a side view of a work piece with the center of gravity outside the triangular region.

Fig. 7 is a schematic structural diagram of the bottom of the smart portal stand.

Fig. 8 is a side view schematic structure diagram of the bottom of the smart gantry foot.

Fig. 9 is a schematic front view of the bottom of the smart portal stand.

FIG. 10 isbase:Sub>A schematic sectional view A-A of FIG. 9.

Fig. 11 is a schematic structural view of the eccentric shaft.

FIG. 12 is a schematic view of the structure of an anti-rotation plate.

Reference numerals are as follows:

1-a door frame beam; 11-a cross-bar; 12-a leg;

2-a trolley frame; 21-small vehicle wheels;

3-a lifting mechanism; 31-a telescoping assembly; 311-a lift motor; 312-an outer tube; 313-an inner tube; 314-a lead screw;

4-a balance beam;

5-clamping jaws;

6-rotating the module; 61-a rotary drive motor; 62-a rotating frame; 63-rotation support; 64-a rotating gear;

7-a drive mechanism; 71-trolley motor; 72-a drive gear; 73-an eccentric shaft; 731-a first shaft; 732-a second shaft; 733-a connecting portion; 734-cylinder; 735-a threaded post; 74-guide wheel; 75-rotation prevention plates; 76-a bracket; 761-top plate; 762-a backplane; 763-side plate;

8-a guide rail; 81-linear rack;

9-a slide block;

10-horizontal sliding rail.

Detailed Description

Unless otherwise defined, technical or scientific terms used in the present specification and claims should have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

All numerical values recited herein as between the lowest value and the highest value are intended to mean all values obtained in increments of one unit between the lowest value and the highest value when there is a difference of more than two units between the lowest value and the highest value.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with specific embodiments. It is noted that in the detailed description of these embodiments, in order to provide a concise description, all features of an actual implementation may not be described in detail.

Examples

As shown in fig. 1, the present embodiment provides a transfer trolley for deck, which includes a portal frame beam 1, a trolley frame 2, a lifting mechanism 3, a balance beam 4 and a clamping jaw 5. The portal frame beam 1 spans across the deck, and two support legs 12 of the portal frame beam are respectively connected with a guide rail 8 on the deck, and the guide rails 8 are arranged along the main beam direction, so that the portal frame beam 1 can move on the deck along the main beam direction. The bottom of the trolley frame 2 is arranged on the cross rod 11 of the portal frame beam 1 through the small wheel 21, the small wheel 21 is connected with a motor, and the trolley frame 2 can move axially along the cross rod 11 under the driving of the motor. Therefore, the transfer trolley can run on an XY two-dimensional plane on a deck through the cooperation of the portal beam 1 and the trolley frame 2, and the transfer trolley can cover all working planes. The lifting mechanism 3 comprises a plurality of telescopic assemblies 31, and the telescopic assemblies 31 are distributed at the bottoms of two sides of the trolley frame 2; the balance beam 4 is connected with a plurality of telescopic assemblies 31 through the top and hung below the trolley frame 2 and the cross rod 11, and a clamping jaw 5 is fixed on the balance beam 4 and used for grabbing a steel beam. The lifting mechanism 3 enables the transfer trolley to perform XYZ three-dimensional space operation, the working requirements are met, and the working efficiency is improved.

As shown in fig. 2, the number of the telescopic assemblies 31 is three; the balance beam 4 adopts a T-shaped structure, and the bottoms of the three telescopic assemblies 31 are respectively hinged with three ends of the T-shaped top surface of the balance beam 4 to form a triangular structure. The middle part of the balance beam 4 is of a circular ring shape, a rotating module 6 is arranged below the position of the circular ring shape, and the clamping jaw 5 is installed below the rotating module 6 in a hanging mode. The telescopic assembly 31 is hinged with the balance beam 4 by adopting a spherical hinge, and a pin shaft load sensor is also arranged on the spherical hinge and can measure the load at the spherical hinge. The angle adjustment of the balance beam 4 with full freedom degree is realized by the spherical hinge structure matched with the three lifting beams in triangular distribution, and the three telescopic assemblies 31 can synchronously drive or asynchronously drive the balance beam 4 to adjust the posture.

As shown in fig. 3, the telescopic assembly 31 may be a conventional commercially available telescopic rod structure, but is not limited thereto. Each telescopic assembly 31 in this embodiment comprises a lifting motor 311, an outer tube 312, an inner tube 313 and a lead screw 314. The top end of the screw 314 is fixedly connected with a lifting motor 311 positioned at the top of the outer tube 312, the inner tube 313 is arranged in the outer tube 312 in a sliding manner, the top of the inner tube 313 is connected with a movable base of the screw 314, and the bottom of the inner tube 313 is hinged with the balance beam 4. When the lifting motor 311 works, the screw 314 is driven to move, and the movable base of the screw 314 moves up and down along the screw, so as to drive the inner tube 313 to stretch at the lower end of the outer tube 312, thereby realizing the stretching function.

As shown in FIG. 4, the rotating module 6 adopts a nested structure of a rotating frame 62 and a rotating support 63, and then the rotating support 63 and a rotating driving motor 61 are meshed and connected by a rotating gear 64, so that the structure is simple and reliable, and the stability is good. The specific development is as follows: the rotation module 6 includes a rotation driving motor 61, a rotation frame 62, and a rotation support 63. The rotary support 63 is cylindrical and is fixed to the lower part of the ring shape of the balance beam 4 by bolts. The rotating frame 62 is sleeved on the rotating support 63 and can rotate around the rotating support 63. The sleeving mode is that a first annular groove is arranged on the inner ring of the rotating frame 62, a second annular groove corresponding to the first annular groove is arranged on the outer ring of the rotating support 63, the two annular grooves are in butt joint to form an annular space with a circular section, and balls are arranged in the annular space. The structure can have better bearing capacity under the condition of meeting the rotation requirement. An installation groove is arranged on the balance beam 4, the rotary driving motor 61 is fixed in the installation groove, and an output shaft of the rotary driving motor is vertically arranged downwards. An output shaft of the rotation driving motor 61 is connected with a rotation gear 64, and an annular rack 64 is fixed on an outer ring of the rotating frame 62 and used for meshing the rotation gear 64 on the output shaft. Thus, when the rotary drive motor 61 rotates, the rotary drive motor 61 rotates the rotary frame 62 by driving the ring-shaped rack via the rotary gear 64, and the chuck jaws fixed to the rotary frame 62 also rotate.

During operation, three flexible subassemblies 31 can synchronous drive or asynchronous drive compensating beam 4, and rotation module 6 drives the clamping jaw rotatory for the clamping jaw can initiatively adjust gesture and angle on a large scale, realizes snatching the multi-angle of girder steel, satisfies the ocean platform deck and builds the demand.

In this embodiment, the three telescopic assemblies 31 are distributed in a triangular shape, and the three fulcrums jointly define a plane, so that the same workpiece can be stably lifted. Meanwhile, the telescopic assemblies 31 are distributed in a triangular mode, so that the gravity center of a workpiece can be allowed to be greatly deviated: when the center of gravity is in the triangular area, all three telescopic assemblies 31 are pulled; as shown in fig. 5 and 6, when the center of gravity is outside the triangular region, both sets of retraction assemblies 31 are in tension and one set of retraction assemblies 31 are in compression.

In this embodiment, the ball hinge used between the telescopic assembly 31 and the balance beam 4 is provided with a pin load sensor, which can measure the stress of each hinge point, and can also calculate the total load and the gravity center position of the load. The specific calculation mode is the conventional calculation process, so the expansion is not carried out.

As shown in fig. 7, the legs 12 of the portal frame beams are moved along the guide rails 8 on the deck by the drive mechanism 7. As shown in fig. 8: a slider 9 is fixed to the rear end of the drive mechanism 7, a horizontal slide rail 10 perpendicular to the guide rail 8 is provided at the front end of the leg 12, and the drive mechanism 7 and the leg 12 are fitted and connected to each other via the slider 9 and the horizontal slide rail 10. Therefore, when the gap between the support leg 12 and the guide rail 8 changes in the working state and the non-working state, the driving mechanism 7 moves relative to the support leg 8 through the horizontal sliding rail 10 and the sliding block 9, and the original precision is still kept with the guide rail 8, so that the normal work can be ensured. In another preferred embodiment, a first concave-convex pattern is arranged in the horizontal sliding rail 10, a second concave-convex pattern is arranged on the surface of the sliding block 9, when the horizontal sliding rail 10 is connected with the sliding block 9, the first concave-convex pattern is embedded with the second concave-convex pattern, and the smoothness and the stability of connection of the horizontal sliding rail 10 and the sliding block are improved.

As shown in fig. 9 and 10, the driving mechanism 7 includes a bracket 76, and an idler module and a driving module, which clamp the guide rail 8 from both sides, respectively, are mounted on the bracket 76. The bracket 76 includes a side plate 763, a top plate 761 and a bottom plate 762, the front side of the side plate 763 connects the top plate 761 and the bottom plate 762, and the top plate 761 and the bottom plate 762 are disposed in parallel up and down. The rear side of the side plate 763 is provided with a slider 9 for abutting against the leg 12. Each of the guide roller modules includes an eccentric shaft 73, a guide roller 74, and an anti-rotation plate 75, the eccentric shaft 73 being fixed to the top plate 761 and the bottom plate 762, the guide roller 74 being installed at the bottom of the eccentric shaft 73, and the anti-rotation plate 75 being installed at the top of the eccentric shaft 73. The driving module comprises a trolley motor 71 and a driving gear 72 connected with an output shaft of the trolley motor 71, a linear rack 81 is arranged on one side of the guide rail 8, and the driving gear 72 is meshed with the linear rack 81. The guide rail 8 is thereby clamped between the guide roller 74 and the drive gear 72, and when the trolley motor 71 is started, the entire entraining mechanism moves on the guide rail 8.

As shown in fig. 11, the eccentric shaft 73 includes a first shaft 731 and a second shaft 732, the second shaft 732 is fixed to the bottom of the first shaft 731, and the first shaft 731 and the second shaft 732 are arranged with their axes being offset. Meanwhile, the diameter of the second shaft 732 is larger than that of the first shaft 731, so that a bottom step surface is formed between the second shaft 732 and the first shaft 731. A connecting portion 733, a geometric column 734, and a threaded column 735 are sequentially disposed on a top portion of the first shaft 731 from bottom to top. The connecting portion 733 has a diameter smaller than that of the first shaft lever 731, so that a top step surface is formed between the connecting portion 733 and the top of the first shaft lever 731. Two mounting holes are formed in the top plate 761 and the bottom plate 762, and the eccentric shaft 73 is fixed in the mounting holes, which is specifically shown in fig. 9 and 11: the first shaft lever 731 passes through the mounting hole of the bottom plate 762 and the mounting hole of the top plate 761 in sequence, and the bottom step surface abuts against the bottom surface of the bottom plate 762 for limiting; meanwhile, the connection part 733 of the first shaft 731 penetrates into the mounting hole of the top plate 761. It is noted that the height of the connection portion 733 is slightly less than the thickness of the top plate 761, and the geometric post 734 and the threaded post 735 protrude from the top of the top plate 761. The rotation preventing plate 75 is first fitted over the post 734 and then the nut is screwed onto the threaded post 735 to fix the entire eccentric shaft 73 and the bracket 76. The anti-rotation plate 75 is provided with a through hole matching the geometric cylinder 734, and one side of the anti-rotation plate 75 can abut against the side plate 763 to prevent itself from rotating. Therefore, the rotation preventing plate 75 is provided to lock the adjusted eccentric shaft 73, thereby preventing the rotation angle from being changed. The guide wheel 74 is an annular guide wheel 74, and is sleeved on the outer ring of the second shaft lever 732, and the annular guide wheel 74 has a simple structure and good stability.

In the using process: the guide wheel 74 is fixed by arranging the eccentric shaft 73, and the gap between the guide wheel 74 and the driving gear 72, namely the gap between the guide wheel 74, the driving gear 72 and the guide rail 8 can be adjusted by rotating the angle of the eccentric shaft 73, so that the most appropriate gap adjustment is realized, and the installation accuracy is ensured. After the gap adjustment is completed, the rotation prevention plate 75 is fitted over the column 734 and then the nut is tightened to fix the position.

In this embodiment, the outer edge and the through hole of the rotation prevention plate 75 are regular polygons having the same axis, and the shape structure can divide the rotation angle evenly, and also give consideration to the angle fine adjustment and fixation of the eccentric shaft 73. For example, as shown in FIG. 12, the anti-rotation plate 75 has a first regular polygon shape with the number of sides; the through holes of the rotation-preventing plate 75 are second regular polygons, and the number of the sides is as follows; the regular octagon and the regular hexagon have a certain deviation angle with each other. Therefore, when the side edge of each regular octagon is attached to the side plate 763, the eccentric shaft 73 inside can be adjusted by 6 angles, so that the inner part and the outer part of the eccentric shaft are combined by 48 combinations, the circumference can be evenly subdivided, the eccentricity is evenly subdivided, and the stability and the accuracy are both considered.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the principles of this invention without the use of inventive faculty. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A transfer trolley for a deck is characterized by comprising a portal frame beam (1), a trolley frame (2), a lifting mechanism (3), a balance beam (4) and a clamping jaw (5);

the portal frame beam (1) spans across the deck and can move on the deck along the direction of a main beam of the ship;

the bottom of the trolley frame (2) is arranged on a cross rod (11) of the portal frame beam (1) and can move along the axial direction of the cross rod (11);

the lifting mechanism (3) comprises a plurality of telescopic assemblies (31), and the telescopic assemblies (31) are distributed below two sides of the trolley frame (2);

the balance beam (4) is connected with a plurality of telescopic assemblies (31) through the top, suspended below the trolley frame (2) and the cross rod (11), and a clamping jaw (5) is fixed on the balance beam (4).

2. The transport trolley for decks according to claim 1, wherein the telescopic assembly (31) comprises a lifting motor (311), an outer tube (312), an inner tube (313) and a lead screw (314), one end of the lead screw (314) is connected with the lifting motor (311) positioned at the top of the outer tube (312), the inner tube (313) is arranged in the outer tube (312), the inner tube (313) is connected with a moving seat of the lead screw (314), and the bottom of the inner tube (313) is hinged with a balance beam (4).

3. A transport trolley for decks according to claim 1, characterized in that the number of the telescopic assemblies (31) is three, the bottom of the three telescopic assemblies (31) is hinged to the top surface of the balance beam (4) through a spherical hinge, the three telescopic assemblies (31) are distributed at three vertexes of a triangle, and the clamping jaws (5) are suspended and fixed at the bottom of the balance beam (4) through the rotating modules (6).

4. A transport trolley for decks according to claim 3, characterized in that the rotation module (6) comprises a rotation driving motor (61), a rotation frame (62) and a rotation support (63), the rotation support (63) is cylindrical and fixed on the bottom of the balance beam (4), the rotation frame (62) is sleeved on the rotation support (63), and the rotation driving motor (61) drives the rotation frame (62) to rotate around the rotation support (63).

5. The transfer trolley for decks according to claim 4, characterized in that the rotating drive motor (61) is fixed on the balance beam (4), the output shaft of the rotating drive motor (61) is connected with a rotating gear (64), and the outer ring of the rotating frame (62) is fixed with an annular rack which is engaged with the rotating gear (64) on the output shaft.

6. A transfer trolley for decks according to claim 1, characterised in that the legs (12) of the gantry beam (1) are moved by means of a drive mechanism (7) along guide rails (8) on the deck, said guide rails (8) being arranged in the direction of the main beam;

the rear end of the driving mechanism (7) is fixed with a sliding block (9), the front end of the support leg (12) is provided with a horizontal sliding rail (10) perpendicular to the guide rail (8), and the horizontal sliding rail (10) is used for abutting against the sliding block (9).

7. A transport trolley for decks as claimed in claim 6, characterized in that the drive mechanism (7) comprises a support frame (76), and a guide wheel module and a drive module mounted on the support frame (76), which clamp the guide rail (8) from both sides, respectively, the horizontal slide rail (10) being fixed to the support frame (76).

8. A transport trolley for decks as claimed in claim 7, characterized in that the drive module comprises a trolley motor (71) and a drive gear (72) connected to the output shaft of the trolley motor (71), one side of the guide rail (8) is provided with a linear rack (81), and the drive gear (72) is engaged with the linear rack (81).

9. A transport trolley for decks as in claim 7, characterized in that the guide wheel module comprises an eccentric shaft (73) and a guide wheel (74), the eccentric shaft (73) comprises a first shaft (731) and a second shaft (732), the second shaft (732) is fixed to the bottom of the first shaft (731), the axes of the first shaft (731) and the second shaft (732) are staggered, and the guide wheel (74) is fixed to the second shaft (732) for contacting the guide rail (8).

10. The transfer trolley for decks as claimed in claim 9, wherein the guide wheel module further comprises an anti-rotation plate (75), a through hole with a geometric shape is formed in the anti-rotation plate (75), a column (734) with a shape matched with that of the through hole is formed at the top of the first shaft lever (731), after the through hole of the anti-rotation plate (75) is connected with the column (734), one side edge of the anti-rotation plate (75) abuts against the bracket (76), and rotation of the anti-rotation plate (75) is limited;

the outer edge of the anti-rotation plate (75) is a first regular polygon, the through hole of the anti-rotation plate (75) is a second regular polygon, and the first regular polygon and the second regular polygon are coaxially arranged.

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