Novel adjustable sliding contact line device for prefabricated part crane

Abstract

The invention provides a novel adjustable sliding contact line device for a prefabricated part crane, and belongs to the technical field of sliding contact line device production. Comprising a main frame and a sliding contact sleeve, the sliding contact sleeve is located below the main frame, a plurality of connecting plates are sequentially and fixedly connected to the bottom of the main frame from left to right, outer grooves are formed in the two ends of the main frame, moving plates are slidably connected to the two sides of the main frame, and mounting frames are fixedly connected to the tops of the moving plates; and the fixing assembly is used for fixing the sliding contact sleeve. Through the arrangement of the fixing assembly, the device can quickly disassemble and assemble the sliding contact sleeves, workers can conveniently maintain and replace the sliding contact sleeves, the working difficulty is reduced, the device can separately fix the multiple sliding contact sleeves, when a single sliding contact sleeve breaks down and is damaged, the damaged sliding contact sleeve can be accurately disassembled and assembled, and the working efficiency is improved. And all the sliding contact sleeves do not need to be disassembled, so that the precision of maintenance work is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of busbar device production, and in particular to a novel adjustable busbar device for a prefabricated component crane. Background Art

[0002] A prefabricated component crane is a lifting equipment that transports heavy objects by hanging or hoisting. It is particularly suitable for hoisting prefabricated concrete components. According to its structure and function, it can be divided into many types, such as tower cranes, self-propelled cranes, etc. The busbar device is a device that provides power supply and signal transmission for the prefabricated component crane. It can maintain a stable power supply and signal transmission during the movement of the crane to ensure the normal operation of the crane and construction safety. It is usually composed of three main components: a sheath, a conductor and a conductor. The sheath is the main part of the busbar, and a high-insulation rail is embedded inside as a power supply wire; the conductor is made of a highly conductive material, such as copper, to ensure good conductivity; the conductor is installed on the crane, contacts the rail and obtains electricity.

[0003] The existing multi-track busbar device generally fixes multiple busbar sleeves in a row through a fixing sleeve, and then bolts the fixed multi-track busbar device to the working area through a mounting frame, and then puts the conductor above the conductor into the inner side of the power supply wire inside the sleeve. When the crane moves and works, the conductor and the conductor will be driven to slide inside the sleeve. While moving, the power supply wire and the conductor inside the sleeve cooperate to transmit electricity to the crane to ensure the normal operation of the crane. However, in actual use, the conductor will slide repeatedly inside the sleeve with current flowing between them. After working for a long time, the power supply wire inside the sleeve is prone to damage. Therefore, the staff needs to maintain and replace the sleeve frequently. Because the multiple sleeves are fixed together and are fixed to the outside of the external equipment by bolts, it is extremely cumbersome to disassemble and assemble the sleeve, which reduces work efficiency and increases the workload of the operator.

[0004] Therefore, the present invention provides a novel adjustable busbar device for a prefabricated component crane to meet the demand. Summary of the invention

[0005] The present invention provides a novel adjustable busbar device for a prefabricated component crane, which can solve the problem that in the prior art, the conductor will slide repeatedly inside the sleeve with current flowing therebetween during actual use, and the power supply wire inside the sleeve is easily damaged after working for a long time. Therefore, the staff needs to maintain and replace the sleeve frequently. Because the multiple sleeves are fixed together and fixed to the outside of the external equipment by bolts, the disassembly and assembly of the sleeve is extremely cumbersome, which reduces the work efficiency and increases the workload of the operator.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A novel adjustable busbar device for a prefabricated component crane comprises a main frame and a busbar sleeve, wherein the busbar sleeve is located below the main frame, and a plurality of connecting plates are fixedly connected to the bottom of the main frame from left to right in sequence, and external grooves are provided inside both ends of the main frame, and movable plates are slidably connected to both sides of the main frame, and a mounting frame is fixedly connected to the top of the movable plate; a fixed component, wherein the fixed component is used to fix the busbar sleeve, and the fixed component is connected to the connecting plate; and a sliding component, wherein the sliding component is used to assist the movable plate in moving, and the sliding component is connected to the movable plate.

[0008] Optionally, the fixing assembly is fixedly connected to the bottom of the connecting plate, and there are four fixing assemblies at the bottom of the same connecting plate. The top of the sliding contact sleeve is arc-shaped, its two sides are inwardly concave, and the bottom is a right angle shape.

[0009] Optionally, the fixing assembly includes a fixing seat connected to the connecting plate, the top of the inner side of the fixing seat is fixedly connected with a top edge spring sheet group, the bottom of the top edge spring sheet group is fixedly connected with a top fixed spring sheet, both ends of the inner side of the fixing seat are fixedly connected with side edge spring sheet groups, the two side edge spring sheet groups are fixedly connected with side fixed spring sheets on one side close to each other, both ends of the inner side of the fixing seat are fixedly connected with a bottom edge spring sheet group, and the two bottom edge spring sheet groups are fixedly connected with a bottom fixed spring sheet on one side close to each other.

[0010] Optionally, the top-fixed elastic sheet is in the shape of an arc, which is adapted to the top of the sliding contact sleeve, the side-fixed elastic sheet is in the shape of an outward protrusion, which is adapted to the concave shape on both sides of the sliding contact sleeve, and the bottom-fixed elastic sheet is in the shape of an L, which is adapted to the two ends of the bottom of the sliding contact sleeve, and its bottom end is in the shape of an arc facing inward.

[0011] Optionally, the movable plate is in the shape of a triangle, the sliding component is rotatably connected to a side of the movable plate close to the main frame, and there are three sliding components connected to the outer side of the same movable plate, and the sliding components are respectively distributed on the outer sides of three corners of the movable plate.

[0012] Optionally, the sliding assembly includes an outer limit ring rotatably connected to the movable plate, a roller is fixedly connected to the side of the outer limit ring away from the movable plate, and an inner limit ring is fixedly connected to the side of the roller away from the outer limit ring.

[0013] Optionally, the outer limit ring is in close contact with the outer side of the main frame, the roller rolls in contact with the outer side of the outer groove, and the upper and lower ends of the two outer grooves close to each other are provided with inner slide grooves adapted to the inner limit ring, and the inner limit ring is rollingly connected to the inside of the corresponding inner slide groove.

[0014] Optionally, the number of the movable plates is four, and they are grouped in pairs. The bottoms of two corresponding installation frames are connected to each other, and the bottom of the connection is fixedly connected to the same connecting block, the bottom bolts of the two connecting blocks are connected to the same bottom connecting plate, and the top of the main frame is fixedly connected to several top mounting frames in sequence from the right.

[0015] Optionally, a motor is fixedly connected to the outer side of one of the movable plates, and the output end of the motor passes through the other side of the movable plate and is fixedly connected to a movable gear. A rack is fixed to the bottom of the inner side of one of the outer grooves, and the rack is located directly below the movable gear and meshes with the movable gear. Limiting blocks are fixedly connected to both sides of the rack.

[0016] Optionally, a copper sheet sleeve is fixedly connected to the inside of the sliding contact sleeve, and the number of the sliding contact sleeves is four, which are respectively clamped in the corresponding fixed components, and a conductive seat is fixedly connected to the bottom of the inner side of the installation frame, and the conductive seat is directly above the connection between the two corresponding installation frames. The top of the conductive seat is fixedly connected to a plurality of connecting seats, and the top of the connecting seat is fixedly connected to a conductive block, and the number of the conductive blocks is four, and they are slidably connected to the inside of the corresponding copper sheet sleeve.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by setting a fixing component, the device can quickly disassemble and assemble the sliding contact sleeve, which is convenient for the staff to maintain and replace the sliding contact sleeve, reduces the difficulty of work, and improves the work efficiency of the device for replacing the sliding contact sleeve. In addition, the device can separately fix multiple sliding contact sleeves. When a single sliding contact sleeve is damaged by a fault, the damaged sliding contact sleeve can be accurately disassembled and assembled without removing all the sliding contact sleeves, thereby improving the accuracy of maintenance work and accelerating work efficiency.

[0019] By arranging the side-fixing spring sheet and the bottom-fixing spring sheet inside the fixing component, it is convenient for the fixing component to clamp and fix the sliding contact sleeve, and the side-fixing spring sheet and the concave shapes on both sides of the sliding contact sleeve cooperate to increase the clamping force on both sides of the sliding contact sleeve, and further improve the stability of the sliding contact sleeve, and the bottom of the sliding contact sleeve can be lifted up by the vertical structure of the bottom-fixing spring sheet and the bottom of the sliding contact sleeve to prevent it from falling off, and the arc design at the bottom end of the bottom-fixing spring sheet makes it convenient for the top end of the sliding contact sleeve to push away the bottom-fixing spring sheets on both sides when installing the sliding contact sleeve, so that the sliding contact sleeve can be installed along the arc, thereby improving the efficiency of installing the sliding contact sleeve and reducing the force required to be applied during installation.

[0020] By arranging a top edge spring sheet and a top fixed spring sheet inside the fixed component, the top fixed spring sheet will exert a squeezing force on the sliding contact sleeve. When the conductive block slides inside the copper sheet sleeve, the top fixed spring sheet will squeeze the sliding contact sleeve and the copper sheet sleeve close to the conductive block, and cooperate with the upper side fixed spring sheet and the bottom fixed spring sheet to make the contact between the copper sheet sleeve and the conductive block more precise, thereby improving the conductive efficiency between the copper sheet sleeve and the conductive block, reducing the loss of electricity, and reducing the use cost while avoiding accidents caused by current leakage.

[0021] By setting up a sliding component, the moving plate does not need to directly contact the main frame, and the sliding friction when the moving plate moves is converted into rolling friction, which greatly reduces the generation of friction. While improving the moving efficiency of the moving plate, it also avoids excessive friction that causes the device to be worn out too quickly, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a cutaway first-person perspective three-dimensional structure of a novel adjustable busbar device for a prefabricated component crane;

[0023] Figure 2 A schematic diagram of a cutaway second-angle stereoscopic structure of a novel adjustable busbar device for a prefabricated component crane;

[0024] Figure 3 for Figure 1 A magnified schematic diagram of point A;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the mounting frame and the conductive seat;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixed component and the sliding contact sleeve;

[0027] Figure 6 A schematic diagram of a cutaway three-dimensional structure of the cooperation between the fixed component and the sliding contact sleeve;

[0028] Figure 7 for Figure 6 An enlarged schematic diagram of point B;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the connection base and the conductive block.

[0030] [reference numerals]

[0031] 1. Main frame; 2. Connecting plate; 3. Fixing assembly; 301. Fixing seat; 302. Top spring piece group; 303. Top fixed spring piece; 304. Side spring piece group; 305. Side fixed spring piece; 306. Bottom spring piece group; 307. Bottom fixed spring piece; 4. Sliding contact sleeve; 5. Copper sheet sleeve; 6. Sliding assembly; 601. Outer limit ring; 602. Roller; 603. Inner limit ring; 7. Moving plate; 8. Mounting frame; 9. Conductive seat; 10. Connecting seat; 11. Conductive block; 12. Motor; 13. Moving gear; 14. Rack; 15. Connecting block; 16. Bottom connecting plate; 17. Inner slide groove; 18. Outer groove; 19. Top mounting frame. DETAILED DESCRIPTION

[0032] The following is a detailed description of a novel adjustable busbar device for a prefabricated component crane provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are preferred embodiments, and for some known technologies, those skilled in the art may also adopt other alternatives.

[0033] like Figures 1 to 7 As shown, an embodiment of the present invention provides a novel adjustable busbar device for a prefabricated component crane, comprising a main frame 1 and a busbar sleeve 4, the busbar sleeve 4 being located below the main frame 1, the bottom of the main frame 1 being fixedly connected with a plurality of connecting plates 2 and a fixing assembly 3 in sequence from left to right, the fixing assembly 3 being used to fix the busbar sleeve 4, the fixing assembly 3 being connected with the connecting plate 2, the fixing assembly 3 being fixedly connected to the bottom of the connecting plate 2, and there being four fixing assemblies 3 at the bottom of the same connecting plate 2, the top of the busbar sleeve 4 being in an arc shape, the two sides of which being in an inwardly concave shape, and the bottom being in a right-angle shape, the fixing assembly 3 comprising a fixing seat 301 connected with the connecting plate 2, the top of the inner side of the fixing seat 301 being fixedly connected with a top edge spring sheet group 302, the bottom of the top edge spring sheet group 302 A top-fixed elastic sheet 303 is fixedly connected to the top of the fixing seat 301, and side elastic sheet groups 304 are fixedly connected to both ends of the inner side of the fixing seat 301. Side-fixed elastic sheets 305 are fixedly connected to the sides close to each other of the two side elastic sheet groups 304. Bottom-fixed elastic sheets 306 are fixedly connected to both ends of the inner bottom of the fixing seat 301, and bottom-fixed elastic sheets 307 are fixedly connected to the sides close to each other of the two bottom elastic sheet groups 306. The top-fixed elastic sheet 303 is in an arc shape, which is adapted to the top of the sliding contact sleeve 4. The side-fixed elastic sheet 305 is convex, which is adapted to the concave shape on both sides of the sliding contact sleeve 4. The bottom-fixed elastic sheet 307 is L-shaped, which is adapted to the two ends of the bottom of the sliding contact sleeve 4, and its bottom end is an arc shape facing inward. Several top mounting frames 19 are fixedly connected to the top of the main frame 1 from the right in sequence.

[0034] The main frame 1 is installed to the corresponding position of the external crane through the top mounting frame 19, and the four sliding contact sleeves 4 are respectively clamped into the corresponding fixing components 3. The elastic force of the spring sheet group is used to ensure that the sliding contact sleeve 4 is stable and easy to adjust; the design of the side-fixed spring sheet 305 fully considers the unique inward concave shape on both sides of the sliding contact sleeve 4, so that the side-fixed spring sheet 305 can fit the sliding contact sleeve 4 tightly when subjected to external force, and form a strong lateral clamping force on both sides, which not only effectively prevents the sliding contact sleeve 4 from shaking in the horizontal direction, but also greatly enhances its vertical stability, ensuring that it can maintain accurate positioning even in a high-intensity working environment. The bottom end of the bottom-fixed spring sheet 307 is designed to be The inner arc shape perfectly matches the right-angle structure at the bottom of the sliding contact sleeve 4. When the sliding contact sleeve 4 is placed in the fixing seat 301, the bottom fixing spring piece 307 gently lifts and fixes the sliding contact sleeve 4 through elasticity, which not only effectively prevents the risk of accidental falling off of the sliding contact sleeve 4 due to gravity, but also ensures the continuous stability during power transmission. When installing the sliding contact sleeve 4, the arc design at the bottom end of the bottom fixing spring piece 307 will naturally guide the sliding contact sleeve 4 to slide along a predetermined trajectory until it is fully in place. During this process, the staff can successfully complete the installation without applying excessive force, which greatly improves work efficiency and reduces the risk of damage that may be caused during the installation process.

[0035] The ingenious layout and structural design of the fixing component 3 make the disassembly and assembly process of the sliding contact sleeve 4 extremely simple and quick. When the sliding contact sleeve 4 needs to be maintained, inspected or replaced, the staff only needs to simply operate a few key components to easily complete the disassembly and installation of the sliding contact sleeve 4. This quick disassembly and assembly capability not only shortens the downtime for maintenance and reduces the losses caused by production interruptions, but also makes the maintenance work more flexible and efficient. The design of the fixing component 3 allows independent operation of a single or multiple sliding contact sleeves 4. When only one sliding contact sleeve 4 fails or is damaged, the staff can quickly and accurately locate the problem and only disassemble and replace the sliding contact sleeve 4 without affecting other sliding contact sleeves 4 that are working normally. This greatly improves the accuracy and efficiency of maintenance work and reduces the additional costs and risks that may be caused by large-scale disassembly.

[0036] like Figures 1 to 4As shown, outer grooves 18 are provided inside both ends of the main frame 1, and moving plates 7 are slidably connected on both sides of the main frame 1. The top of the moving plate 7 is fixedly connected with a mounting frame 8, and a sliding component 6 is used to assist the moving plate 7 in moving. The sliding component 6 is connected to the moving plate 7, and the shape of the moving plate 7 is a triangle. The sliding component 6 is rotatably connected to the side of the moving plate 7 close to the main frame 1, and the number of sliding components 6 connected to the outside of the same moving plate 7 is three, and the sliding components 6 are respectively distributed on the outsides of the three corners of the moving plate 7. The sliding component 6 includes an outer limit ring 601 rotatably connected to the moving plate 7, and a roller 602 is fixedly connected to the side of the outer limit ring 601 away from the moving plate 7, and the roller 602 is away from the outer limit ring An inner limit ring 603 is fixedly connected to one side of 601, and the outer limit ring 601 is in close contact with the outer side of the main frame 1. The roller 602 rolls and contacts the outer side of the outer groove 18. The upper and lower ends of the two outer grooves 18 close to each other are provided with inner slide grooves 17 adapted to the inner limit ring 603. The inner limit ring 603 is rollingly connected to the corresponding inner slide groove 17. A motor 12 is fixedly connected to the outer side of one of the moving plates 7. The output end of the motor 12 passes through the other side of the moving plate 7 and is fixedly connected to the moving gear 13. A rack 14 is fixed to the bottom of the inner side of one of the outer grooves 18. The rack 14 is located directly below the moving gear 13 and meshes with the moving gear 13. Limit blocks are fixedly connected to both sides of the rack 14.

[0037] An external hook is installed at the bottom of the bottom plate 16. When lifting work is required, the external prefabricated component is lifted by the hook, and the motor 12 is started to drive the moving gear 13 to rotate. Through its engagement with the rack 14, the moving plate 7 is driven to move along the main frame 1. The moving plate 7 drives the roller 602 to roll in the outer groove 18, the inner limit ring 603 rolls in the inner slide groove 17, and the outer limit ring 601 rotates on the outside of the main frame 1 to prevent the roller 602 from derailing, thereby ensuring that the moving plate 7 can slide smoothly.

[0038] By setting the sliding component 6, the movable plate 7 no longer directly contacts the main frame 1 when moving, but realizes position movement through the rolling of the roller 602. This rolling friction method greatly reduces the resistance of the contact surface and reduces the generation of friction, making the movement process smoother and more efficient. The resistance of rolling friction is much smaller than that of sliding friction. The movable plate 7 can reach the target position more quickly when subjected to the same driving force, thereby improving the overall work efficiency. At the same time, rolling friction also reduces the heat and wear generated by friction, and avoids the problem of device loss caused by excessive friction. This not only extends the service life of the device, but also reduces maintenance costs and improves economic benefits.

[0039] like Figures 1 to 8As shown, the number of movable plates 7 is four, and they form a group of two. The bottoms of two corresponding mounting frames 8 are connected to each other, and the bottom of the connection is fixedly connected with the same connecting block 15, and the bottom bolts of the two connecting blocks 15 are connected with the same bottom connecting plate 16. The inside of the sliding contact sleeve 4 is fixedly connected with a copper sheet sleeve 5. The number of sliding contact sleeves 4 is four, which are respectively snapped into the corresponding fixed components 3. The bottom of the inner side of the mounting frame 8 is fixedly connected with a conductive seat 9, and the conductive seat 9 is directly above the connection of the two corresponding mounting frames 8. The top of the conductive seat 9 is fixedly connected with a plurality of connecting seats 10, and the top of the connecting seat 10 is fixedly connected with a conductive block 11. The number of conductive blocks 11 is four, and they are slidably connected to the inside of the corresponding copper sheet sleeve 5.

[0040] When the movable plate 7 moves, it drives the installation frame 8 and the bottom plate 16 to move synchronously, so that the external hook can transport the hoisted prefabricated components, and the installation frame 8 will drive the conductive seat 9 and the connecting seat 10 to move, so that the conductive block 11 slides inside the copper sheet sleeve 5, and the external current is transmitted to the conductive block 11 through the copper sheet sleeve 5 to ensure the power supply to the motor 12 and other components, and ensure the normal operation of the crane.

[0041] When the conductive block 11 slides inside the copper sheet sleeve 5 to transmit electricity, the top fixing spring piece 303 will exert a moderate squeezing force on the sliding contact sleeve 4, making the contact surface between the copper sheet sleeve 5 and the conductive block 11 smoother and gapless. This precise contact reduces the contact resistance, thereby improving the efficiency of current flow and reducing the heat and power loss generated by resistance. In addition, the close contact also effectively prevents the leakage of current during the transmission process, reduces the loss of electricity, and reduces the risk of safety accidents such as electric shock and short circuit.

[0042] The working principle provided by the present invention is as follows: the main frame 1 is installed to the corresponding position of the external crane through the top mounting frame 19, the four sliding contact sleeves 4 are respectively clamped into the corresponding fixed components 3, the elastic force of the spring group is used to ensure that the sliding contact sleeves 4 are stable and easy to adjust, and the external hook is installed at the bottom of the bottom plate 16. When the lifting work is required, the external prefabricated component is lifted by the hook, the motor 12 is started, and the moving gear 13 is driven to rotate. Through the engagement between the motor 12 and the rack 14, the moving plate 7 is driven to move along the main frame 1, and the moving plate 7 drives the roller 602 to roll in the outer groove 18, and the inner limit The ring 603 rolls in the inner slide groove 17, and the outer limit ring 601 rotates on the outside of the main frame 1 to prevent the roller 602 from derailing, ensuring that the movable plate 7 can slide smoothly. When the movable plate 7 moves, it drives the installation frame 8 and the bottom plate 16 to move synchronously, so that the external hook can transport the hoisted prefabricated components, and the installation frame 8 will drive the conductive seat 9 and the connecting seat 10 to move, so that the conductive block 11 slides inside the copper sheet sleeve 5, and the external current is transmitted to the conductive block 11 through the copper sheet sleeve 5 to ensure the power supply to the motor 12 and other components, and ensure the normal operation of the crane.

[0043] The present invention encompasses any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A novel adjustable busbar device for a prefabricated component crane, comprising a main frame (1) and a busbar sleeve (4), characterized in that: The sliding contact sleeve (4) is located below the main frame (1); a plurality of connecting plates (2) are fixedly connected to the bottom of the main frame (1) from left to right in sequence; external grooves (18) are provided inside both ends of the main frame (1); both sides of the main frame (1) are slidably connected to movable plates (7); and the top of the movable plate (7) is fixedly connected to a mounting frame (8); A fixing component (3), the fixing component (3) being used to fix the sliding contact sleeve (4), the fixing component (3) being connected to the connecting plate (2); A sliding component (6) is used to assist the moving plate (7) in moving, and the sliding component (6) is connected to the moving plate (7).

2. The novel adjustable busbar device for prefabricated component crane according to claim 1 is characterized in that: The fixing assembly (3) is fixedly connected to the bottom of the connecting plate (2), and there are four fixing assemblies (3) at the bottom of the same connecting plate (2). The top of the sliding contact sleeve (4) is in an arc shape, the two sides of which are inwardly concave, and the bottom is in a right-angle shape.

3. The novel adjustable busbar device for prefabricated component crane according to claim 1 is characterized in that: The fixing assembly (3) comprises a fixing seat (301) connected to the connecting plate (2); a top spring sheet group (302) is fixedly connected to the top of the inner side of the fixing seat (301); a top fixing spring sheet (303) is fixedly connected to the bottom of the top spring sheet group (302); side spring sheet groups (304) are fixedly connected to both ends of the inner side of the fixing seat (301); sides of the two side spring sheet groups (304) close to each other are fixedly connected to side fixing spring sheets (305); both ends of the inner side bottom of the fixing seat (301) are fixedly connected to bottom spring sheet groups (306); sides of the two bottom spring sheet groups (306) close to each other are fixedly connected to bottom fixing spring sheets (307).

4. The novel adjustable busbar device for prefabricated component crane according to claim 3 is characterized in that: The top fixing spring piece (303) is in the shape of an arc and is adapted to the top of the sliding contact sleeve (4); the side fixing spring piece (305) is in the shape of an outward protrusion and is adapted to the concave shapes on both sides of the sliding contact sleeve (4); the bottom fixing spring piece (307) is in the shape of an L and is adapted to the two ends of the bottom of the sliding contact sleeve (4), and its bottom end is in the shape of an arc facing inward.

5. The novel adjustable busbar device for prefabricated component crane according to claim 1 is characterized in that: The movable plate (7) is in the shape of a triangle, the sliding assembly (6) is rotatably connected to a side of the movable plate (7) close to the main frame (1), and the number of sliding assemblies (6) connected to the outer side of the same movable plate (7) is three, and the sliding assemblies (6) are respectively distributed on the outer sides of the three corners of the movable plate (7).

6. The novel adjustable busbar device for prefabricated component crane according to claim 1 is characterized in that: The sliding assembly (6) comprises an outer limit ring (601) rotatably connected to the movable plate (7); a roller (602) is fixedly connected to the side of the outer limit ring (601) away from the movable plate (7); and an inner limit ring (603) is fixedly connected to the side of the roller (602) away from the outer limit ring (601).

7. The novel adjustable busbar device for a prefabricated component crane according to claim 6 is characterized in that: The outer limit ring (601) is in close contact with the outer side of the main frame (1), and the roller (602) rolls in contact with the outer side of the outer groove (18). The upper and lower ends of the two outer grooves (18) close to each other are provided with inner slide grooves (17) adapted to the inner limit ring (603), and the inner limit ring (603) is rollingly connected to the inside of the corresponding inner slide groove (17).

8. The novel adjustable busbar device for prefabricated component crane according to claim 1 is characterized in that: The number of the movable plates (7) is four, and two of them form a group. The bottoms of the two corresponding installation frames (8) are connected to each other, and the bottom of the connection is fixedly connected to the same connection block (15). The bottoms of the two connection blocks (15) are bolted to the same bottom connecting plate (16). The top of the main frame (1) is fixedly connected to a plurality of top mounting frames (19) in sequence from the right.

9. The novel adjustable busbar device for prefabricated component crane according to claim 1 is characterized in that: A motor (12) is fixedly connected to the outer side of one of the moving plates (7), the output end of the motor (12) passes through the other side of the moving plate (7) and is fixedly connected to a moving gear (13), a rack (14) is fixed to the bottom of the inner side of one of the outer grooves (18), the rack (14) is located directly below the moving gear (13) and meshes with the moving gear (13), and both sides of the rack (14) are fixedly connected to limit blocks.

10. The novel adjustable busbar device for prefabricated component crane according to claim 1, characterized in that: The interior of the sliding contact sleeve (4) is fixedly connected to a copper sheet sleeve (5), the number of the sliding contact sleeves (4) is four, and they are respectively clamped in the interior of the corresponding fixed components (3), the bottom of the inner side of the installation frame (8) is fixedly connected to a conductive seat (9), the conductive seat (9) is directly above the connection between the two corresponding installation frames (8), the top of the conductive seat (9) is fixedly connected to a plurality of connecting seats (10), the top of the connecting seat (10) is fixedly connected to a conductive block (11), the number of the conductive blocks (11) is four, and they are slidably connected to the interior of the corresponding copper sheet sleeve (5).

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