Bridge crane with rotary hoisting mechanism

Abstract

The utility model relates to the technical field of hoisting equipment, in particular to a bridge type hoist with a rotary hoisting mechanism, which comprises a cross beam, a hoisting device is arranged on the cross beam, and the hoisting device comprises a first hoisting tool used for vertical hoisting and a second hoisting tool used for changing the form of a bucket screen support. A rotating mechanism used for driving the second lifting appliance to rotate is arranged on the cross beam and comprises a platform located below the cross beam, a guide rail connected with the cross beam is arranged on the upper portion of the platform, an avoiding cavity used for installing the second lifting appliance is formed in one end of the platform, and a driving device used for driving the platform to rotate is arranged at the other end of the platform; the driving device is used for driving the platform to rotate, at the moment, the second lifting appliance rotates along with the platform to complete deformation operation of the bucket screen support, lifting and deformation operation of the bucket screen support can be completed on one bridge type lifting device, and compared with existing operation equipment, the input equipment and labor cost is lower, and the operation efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a bridge type crane with a rotating lifting mechanism. Background Art

[0002] In the complex and delicate hoisting process of the bucket screen, there are a series of highly technically difficult, strict and challenging operation links. Among them, the lifting, deformation and splicing of the bucket screen bracket are undoubtedly the key to the entire hoisting process.

[0003] The deformation action mentioned here has extremely special and precise requirements. It is to change the splicing frame, which was originally in a regular straight line, into a U shape in a specific way. This change is not simple and easy. Specifically, it is specifically operated on the short beams at both ends of the splicing frame and connected by hinges. These short beams play a unique role in the entire splicing frame structure, and their connection method determines their flexibility and complexity during the deformation process. In the deformation operation, these short beams need to be flipped outward through precise mechanical control and clever operation methods. This flipping action must ensure that each short beam can move at the angle, speed and direction required by the design. Any slight deviation may cause problems in the structural deformation of the entire bucket screen bracket, which in turn affects the subsequent hoisting work and the installation quality and performance of the bucket screen.

[0004] At present, the existing operation method for this complex and delicate deformation action is to reasonably set up at least four bridge cranes around the bucket screen. The layout of these bridge cranes has been carefully designed. They are distributed in different directions and each plays an important role. During the entire deformation operation, each bridge crane needs to move in a straight line according to a strict operating procedure. By accurately controlling the linear movement distance, speed and order of movement of these cranes in different directions, the deformation operation of the bucket screen bracket can be completed in a coordinated manner. This process requires operators to have superb professional skills and rich practical experience, and also relies on advanced monitoring and control systems to ensure that each link can be carried out accurately to ensure the safety and smooth completion of the deformation operation of the bucket screen bracket.

[0005] This mode of operation requires a large amount of manpower and material resources for the construction and dismantling of the preliminary equipment during operation, and in actual operation, due to the actual coordination of various equipment, large errors and difficulty in assembly will occur when assembling the bucket screen frame, which directly reduces the installation efficiency and accuracy of the bucket screen. Utility Model Content

[0006] In order to solve the above problems, an embodiment of the utility model provides a bridge crane with a rotating lifting mechanism, which can use a bridge crane to complete the lifting, deformation and other operations of the splicing frame during the splicing operation of the bucket screen bracket, saving the cost of operating equipment, labor and other costs, while improving the splicing efficiency and accuracy.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: a bridge crane with a rotating lifting mechanism, including a crossbeam, a lifting device is arranged on the crossbeam, the lifting device includes a first sling and a second sling, the crossbeam is provided with a rotating mechanism for driving the second sling to rotate, the rotating mechanism includes a platform located below the crossbeam, a guide rail connected to the crossbeam is arranged on the upper part of the platform, a avoidance cavity for installing the second sling is arranged at one end of the platform, and a driving device for driving the platform to rotate is arranged at the other end.

[0008] As a further improvement of the above technical solution:

[0009] The driving device comprises a column vertically installed on the platform, a load-bearing beam connected to the cross beam is arranged on the upper part of the column, a bearing seat is arranged at the connection between the load-bearing beam and the column, and a driving source for driving the column to rotate is arranged on the cross beam.

[0010] The driving source comprises an electric push rod, and a driving arm connected to the upper part of the column is arranged at the telescopic end of the electric push rod.

[0011] The guide rail is arc-shaped, a cantilever connected to the crossbeam is arranged on the upper part of the guide rail, and an extension plate for connecting the platform is arranged on the lower part of the guide rail.

[0012] The platform is provided with a rail clamp connected to the guide rail, and the rail clamp includes positioning plates located on both sides of the guide rail, a base connected to the platform is provided at the lower part of the two positioning plates, and a clamping wheel located on the extension plate is provided on the inner side of the positioning plate.

[0013] There are two clamping wheels, which are symmetrically distributed with the center line of the positioning plate as the axis. The surface of the clamping wheel is arc-shaped and the diameter gradually decreases from one end close to the guide rail to the outside.

[0014] A motor is arranged on one of the positioning plates, a driving gear is arranged at the output end of the motor, and a driven gear meshing with the driving gear is arranged on the clamping wheel.

[0015] The number of the rail clamps is multiple and they are symmetrically distributed with the center line of the guide rail as the axis.

[0016] The beneficial effects of the embodiments of the utility model are as follows: the bridge crane with a rotating lifting mechanism comprises a crossbeam, a lifting device is arranged on the crossbeam, the lifting device comprises a first lifting device for vertical lifting and a second lifting device for changing the shape of the bucket screen bracket, the crossbeam is provided with a rotating mechanism for driving the second lifting device to rotate, the rotating mechanism comprises a platform located below the crossbeam, a guide rail connected to the crossbeam is arranged on the upper part of the platform, a avoidance cavity for installing the second lifting device is arranged at one end of the platform, and a driving device for driving the platform to rotate is arranged at the other end, the driving device is used to drive the platform to rotate, at this time, the second lifting device completes the deformation operation of the bucket screen bracket with the rotation of the platform, the lifting and deformation operations of the bucket screen bracket can be completed on one bridge crane, compared with the existing operating equipment, the equipment and labor costs invested are less, and the operation efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the lifting device in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the second lifting device in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the rail clamp in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the driving source in the utility model.

[0022] In the figure: 1. crossbeam; 2. first lifting fixture; 3. second lifting fixture; 4. platform; 5. guide rail; 6. avoidance cavity; 7. driving device; 8. column; 9. load-bearing beam; 10. bearing seat; 11. driving source; 12. electric push rod; 13. driving arm; 14. cantilever; 15. extension plate; 16. track clamp; 17. positioning plate; 18. base; 19. clamping wheel; 20. motor; 21. driving gear; 22. driven gear. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0024] like Figure 1-5As shown, the bridge crane with a rotating lifting mechanism of this embodiment includes a crossbeam 1, and a lifting device is provided on the crossbeam 1. The lifting device includes a first lifting device 2 for vertical lifting and a second lifting device 3 for changing the shape of the bucket screen bracket. The crossbeam 1 is provided with a rotating mechanism for driving the second lifting device 3 to rotate. The rotating mechanism includes a platform 4 located below the crossbeam 1, and a guide rail 5 connected to the crossbeam 1 is provided on the upper part of the platform 4. A avoidance cavity 6 for installing the second lifting device 3 is provided at one end of the platform 4, and a driving device 7 for driving the platform 4 to rotate is provided at the other end. The driving device 7 is used to drive the platform 4 to rotate. At this time, the second lifting device 3 completes the deformation operation of the bucket screen bracket as the platform 4 rotates. The lifting and deformation operations of the bucket screen bracket can be completed on one bridge crane. Compared with the existing operating equipment, the equipment and labor costs invested are less, and the operation efficiency is higher.

[0025] The driving device 7 includes a column 8 vertically installed on the platform 4, and a load-bearing beam 9 connected to the cross beam 1 is provided on the upper part of the column 8, and a bearing seat 10 is provided at the connection between the load-bearing beam 9 and the column 8. A driving source 11 for driving the column 8 to rotate is provided on the cross beam 1. The driving source 11 includes an electric push rod 12, and the fixed end of the electric push rod 12 is connected to the cross beam 1, and the telescopic end of the electric push rod 12 is provided with a driving arm 13 connected to the upper part of the column 8. The column 8 is driven to rotate by the telescopic movement of the electric push rod 12. The lower part of the column 8 is fixedly connected to the platform 4. When the column 8 rotates, it will drive the platform 4 to rotate, thereby completing the angular rotation of the second hoist 3.

[0026] The guide rail 5 is arc-shaped, and a cantilever 14 connected to the cross beam 1 is provided at the upper part of the guide rail 5. There are multiple cantilevers 14 distributed along the circumferential direction of the guide rail 5. An extension plate 15 for connecting to the platform 4 is provided at the lower part of the guide rail 5. The extension plate 15 is distributed vertically with the main body of the guide rail 5 and is used to install and receive the rail clamp 16.

[0027] A rail clamp 16 connected to the guide rail 5 is provided on the platform 4. The rail clamp 16 includes positioning plates 17 located on both sides of the guide rail 5. A base 18 connected to the platform 4 is provided at the lower part of the two positioning plates 17. A clamping wheel 19 located on the extension plate 15 is provided on the inner side of the positioning plate 17.

[0028] There are two clamping wheels 19 on each positioning plate 17, and they are symmetrically distributed with the center line of the positioning plate 17 as the axis. The surface of the clamping wheel 19 is arc-shaped and the diameter gradually decreases from the end close to the guide rail 5 to the outside. A motor 20 is installed on one of the positioning plates 17. The output end of the motor 20 is provided with a driving gear 21, and the clamping wheel 19 is provided with a driven gear 22 meshing with the driving gear 21. The position of the track clamp 16 can be adjusted by the design of the motor 20. When the driving device 7 can rotate, the track clamp 16 remains stationary and only plays a guiding role. If the driving device 7 fails, the motor 20 on the track clamp 16 can be used as a temporary drive to adjust the rotation angle of the platform 4.

[0029] There are two rail clamps 16 , which are symmetrically distributed with the center line of the guide rail 5 as an axis.

[0030] When in use, the first sling 2 is connected to the middle part of the bucket screen bracket, the second sling 3 is connected to the rotating parts at both ends of the bucket screen bracket, and then the bucket screen is lifted to the set height. Next, the rotation function of the platform 4 is used to drive the second sling 3 to rotate, and then the two ends of the bucket screen bracket are driven to rotate, so that the bucket screen bracket changes from a straight shape to a U shape. It is simple and convenient and does not require too much equipment intervention, saving manpower and material resources.

[0031] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0034] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A bridge crane with a rotary lifting mechanism, comprising a crossbeam (1), on which a lifting device is arranged, characterized in that: The lifting device comprises a first lifting device (2) and a second lifting device (3), and the crossbeam (1) is provided with a rotating mechanism for driving the second lifting device (3) to rotate; The rotating mechanism comprises a platform (4) located below the crossbeam (1), a guide rail (5) connected to the crossbeam (1) being arranged on the upper part of the platform (4), a avoidance cavity (6) for installing a second sling (3) being arranged at one end of the platform (4), and a driving device (7) for driving the platform (4) to rotate being arranged at the other end.

2. A bridge crane with a rotary lifting mechanism according to claim 1, characterized in that: The driving device (7) comprises a column (8) vertically mounted on the platform (4); a load-bearing beam (9) connected to the cross beam (1) is arranged on the upper part of the column (8); a bearing seat (10) is arranged at the connection between the load-bearing beam (9) and the column (8); and a driving source (11) for driving the column (8) to rotate is arranged on the cross beam (1).

3. A bridge crane with a rotary lifting mechanism according to claim 2, characterized in that: The driving source (11) comprises an electric push rod (12), and a driving arm (13) connected to the upper part of the column (8) is provided at the telescopic end of the electric push rod (12).

4. A bridge crane with a rotary lifting mechanism according to claim 1, characterized in that: The guide rail (5) is arc-shaped, and a cantilever (14) connected to the crossbeam (1) is provided at the upper portion of the guide rail (5), and an extension plate (15) for connecting to the platform (4) is provided at the lower portion.

5. A bridge crane with a rotary lifting mechanism according to claim 4, characterized in that: A rail clamp (16) connected to the guide rail (5) is arranged on the platform (4), and the rail clamp (16) comprises positioning plates (17) located on both sides of the guide rail (5), bases (18) connected to the platform (4) are arranged at the lower parts of the two positioning plates (17), and clamping wheels (19) located on the extension plate (15) are arranged on the inner side of the positioning plates (17).

6. A bridge crane with a rotary lifting mechanism according to claim 5, characterized in that: There are two clamping wheels (19) which are symmetrically distributed with the center line of the positioning plate (17) as the axis. The surface of the clamping wheel (19) is arc-shaped and the diameter gradually decreases as it extends outward from one end close to the guide rail (5).

7. A bridge crane with a rotary lifting mechanism according to claim 5, characterized in that: A motor (20) is disposed on one of the positioning plates (17), a driving gear (21) is disposed at the output end of the motor (20), and a driven gear (22) meshingly connected to the driving gear (21) is disposed on the clamping wheel (19).

8. A bridge crane with a rotary lifting mechanism according to claim 5, characterized in that: The rail clamps (16) are multiple in number and are symmetrically distributed with the center line of the guide rail (5) as the axis.

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