Electric double-beam crane with damping function

Abstract

The utility model discloses a kind of electric double-beam cranes with shock-absorbing function, including hoisting beam and damping mechanism, hoisting beam: its upper end is equipped with movable moving frame, the left and right sides of moving frame upper end are slidably connected with connecting plate, damping mechanism: it includes reinforcing rib, mounting seat, oil damper one, recess, guide wheel and damping assembly, the reinforcing rib is evenly arranged in the top wall middle of connecting plate, mounting seat is respectively arranged in the left and right sides of moving frame upper end middle part, oil damper one is evenly arranged in the inside of mounting seat, recess is all opened in the lower end of reinforcing rib, guide wheel is all rotationally connected on the telescopic end upper end of oil damper one, the outer edge of guide wheel is slidably connected with the inner wall of vertically adjacent recess, this electric double-beam crane with shock-absorbing function, oil damper and rubber damper are combined, energy-absorbing shock-absorbing can also disperse impact force, improve the shock-absorbing effect of electric double-beam crane.

Description

Technical Field

[0001] This utility model relates to the technical field of electric double girder cranes, specifically an electric double girder crane with shock absorption function. Background Technology

[0002] An electric double-girder crane is a type of lifting equipment that uses electricity and runs on rails in factories or warehouses. Its core structure consists of two parallel main beams supporting a movable winch. It can efficiently lift, move horizontally, and precisely position heavy objects. Widely used in factory workshops, warehouses, and freight yards for large-span, heavy-load material handling operations, it is a key piece of equipment in modern production lines and logistics hubs. It can significantly replace manual labor and improve operational safety. When the electric double-girder crane is working, the hook below the winch lifts the goods, achieving lifting and lowering. The drive wheels at the front and rear ends of the main beams move the goods left and right, while the drive wheels on the left and right sides of the winch move the goods back and forth. The winch generates high-frequency vibrations when winding and unwinding the wire rope to lift goods. After the equipment has lifted goods, it is prone to vibrations during start-up and shutdown. Due to inertia, vibrations are easily generated. To prevent these vibrations from directly impacting the main beam's structural strength, a vibration damping structure needs to be installed between the main beam and the winch. Existing electric double-girder cranes typically use rubber damping pads to mitigate vibrations during operation. These pads separate the main beam from the winch, utilizing the viscoelastic properties and energy dissipation mechanism of rubber to achieve vibration reduction. Traditional electric double-girder cranes rely on rubber damping pads to reduce vibrations generated during operation. Whether it's the high-frequency vibrations during lifting or the vibrations during start-up and shutdown, the impact force is entirely concentrated on the rubber damping pads. However, a single rubber damping pad lacks an effective force distribution structure, leading to overload and easy aging of the pads, thus affecting the vibration damping effect of the electric double-girder crane. Therefore, we propose an electric double-girder crane with vibration damping capabilities. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an electric double girder crane with shock absorption function. The combination of oil damper and rubber damper can absorb energy and reduce shock while also dispersing the impact force, thereby improving the shock absorption effect of the electric double girder crane and effectively solving the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electric double-girder crane with shock absorption function, comprising a lifting beam and a shock absorption mechanism;

[0005] Lifting beam: It is equipped with a movable frame at its upper end, and connecting plates are slidably connected to the left and right sides of the upper end of the movable frame;

[0006] The shock absorption mechanism includes reinforcing ribs, mounting bases, oil dampers, grooves, guide wheels, and shock absorption components. The reinforcing ribs are evenly distributed in the middle of the top wall of the connecting plate. The mounting bases are respectively located on the left and right sides of the upper middle part of the moving frame. The oil dampers are all located inside the mounting bases. The grooves are all opened at the lower end of the reinforcing ribs. The guide wheels are all rotatably connected to the upper end of the telescopic end of the oil dampers. The outer edge of the guide wheels is slidably connected to the inner wall of the vertically adjacent groove, providing a basis for the dispersion of impact force. The shock absorption components are all located at the upper end of the moving frame. The combination of oil dampers and rubber dampers can absorb energy and reduce shock while also dispersing the impact force, thus improving the shock absorption effect of the electric double girder crane.

[0007] Furthermore, the grooves and oil dampers are both distributed in an inclined state with the same inclination angle, and the grooves and the vertically adjacent oil dampers are all distributed in a perpendicular state, so that multiple oil dampers can be subjected to force evenly.

[0008] Furthermore, the damping assembly includes an oil damper II, a mounting plate, and rubber dampers. The oil damper II is respectively disposed on the left and right sides of the middle of the moving frame. The upper end of the oil damper II is fixedly connected to the lower end of the connecting plate. The mounting plate is respectively disposed at the four corners of the upper end of the moving frame. The rubber dampers are all disposed on the side of the mounting plate near the middle of the moving frame. The front and rear sides of the connecting plate are fixedly connected to the adjacent vertical rubber dampers. The oil damper II, in conjunction with the rubber dampers, can absorb energy and reduce vibration more efficiently.

[0009] Furthermore, the shock absorption mechanism also includes limiting wheels and limiting plates. The limiting wheels are rotatably connected to the left and right sides of the mobile frame, and the limiting plates are respectively set on the left and right sides of the upper end of the lifting beam. The upper ends of the limiting wheels are slidably connected to the top wall of the vertically adjacent limiting plates, which can limit the mobile frame and make the mobile frame move more smoothly.

[0010] Furthermore, it also includes a winch, with a mounting frame between the two connecting plates. The winch is located in the middle of the mounting frame, and its input end is electrically connected to an external controller. The outer surface of the winch is wound with evenly distributed steel wire ropes, and the lower end of the steel wire ropes is equipped with a hook to provide a lifting foundation for the equipment.

[0011] Furthermore, it also includes a drive wheel and a motor. The drive wheel is rotatably connected to the four internal corners of the mobile frame. The lower end of the drive wheel is slidably connected to the surface of the vertically adjacent track at the upper end of the lifting beam. The motor is respectively set at the front end of the left and right sides of the mobile frame. The input end of the motor is electrically connected to an external controller. The output shaft of the motor is fixedly connected to the end of the vertically adjacent drive wheel away from the middle of the mobile frame, providing a stable driving effect for the movement of the mobile frame.

[0012] Furthermore, it also includes a second motor. Drive wheels are rotatably connected to both the front and rear sides inside the lifting beam. Gearboxes are provided at the right ends of both the front and rear sides of the lifting beam. The second motor is located on the upper end of each gearbox. The input end of the second motor is electrically connected to an external controller. The lower end of the output shaft of the second motor is fixedly connected to the upper end of the gearbox of the vertically adjacent gearbox. The end of the output shaft of the gearbox near the lifting beam is fixedly connected to the end of the vertically adjacent drive wheel 2 away from the middle of the lifting beam, providing a stable driving effect for the movement of the lifting beam.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This electric double-girder crane with shock absorption function has the following advantages:

[0014] By using grooves that are inclined at 45 degrees and perpendicular to each other, the first oil damper can quickly disperse and absorb a portion of the impact force. Then, through the viscoelastic properties and energy dissipation mechanism of the rubber damper, another portion of the impact force can be absorbed. Combined with the direct energy absorption of the second oil damper, the three can work together to disperse a portion of the impact force while absorbing it, reducing the load on individual damping devices and quickly and efficiently achieving vibration reduction between the structures of the electric double-girder crane. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the lifting beam of this utility model;

[0017] Figure 3 This is a schematic diagram of the shock absorption mechanism of this utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the shock absorption mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the oil damper of this utility model.

[0020] In the diagram: 1. Lifting beam, 2. Moving frame, 3. Connecting plate, 4. Vibration damping mechanism, 41. Reinforcing rib, 42. Mounting seat, 43. Oil damper I, 44. Groove, 45. Guide wheel, 46. Vibration damping assembly, 461. Oil damper II, 462. Mounting plate, 463. Rubber damper, 47. Limiting wheel, 48. Limiting plate, 5. Mounting frame, 6. Winch, 7. Hook, 8. Drive wheel I, 9. Motor I, 10. Drive wheel II, 11. Gearbox, 12. Motor II. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This embodiment provides a technical solution: an electric double-girder crane with shock absorption function, including a lifting beam 1 and a shock absorption mechanism 4;

[0023] The lifting beam 1 has a movable frame 2 at its upper end. Connecting plates 3 are slidably connected to the left and right sides of the upper end of the movable frame 2. Limiting sliding columns are provided on the top walls of the connecting plates 3. Sliding holes are opened on the left and right sides of the upper end of the movable frame 2. The outer surfaces of the limiting sliding columns are slidably connected to the inner walls of the vertically adjacent sliding holes. It also includes a winch 6. A mounting frame 5 is provided between the two connecting plates 3. The winch 6 is located in the middle of the mounting frame 5. The input end of the winch 6 is electrically connected to an external controller. Evenly distributed steel wire ropes are wound around the outer surface of the winch 6. Hooks 7 are provided at the lower ends of the steel wire ropes to provide a lifting foundation for the equipment. It also includes drive wheels 8 and motors 9. Drive wheels 8 are rotatably connected to the four internal corners of the movable frame 2. The lower ends of drive wheels 8 are slidably connected to the surfaces of the vertically adjacent tracks at the upper end of the lifting beam 1. Motors 9 are respectively provided with… At the front ends of the left and right sides of the mobile frame 2, the input end of motor 9 is electrically connected to an external controller. The output shaft of motor 9 is fixedly connected to the end of the vertically adjacent drive wheel 8 away from the middle of the mobile frame 2, providing a stable driving effect for the movement of the mobile frame 2. It also includes motor 12. Drive wheels 10 are rotatably connected to the front and rear sides inside the lifting beam 1. A reduction gearbox 11 is provided at the right end of the front and rear sides of the lifting beam 1. Motor 12 is located at the upper end of the reduction gearbox 11. The input end of motor 12 is electrically connected to an external controller. The lower end of the output shaft of motor 12 is fixedly connected to the upper end of the reduction shaft of the vertically adjacent reduction gearbox 11. The output shaft of the reduction gearbox 11 is fixedly connected to the end of the vertically adjacent drive wheel 10 away from the middle of the lifting beam 1, providing a stable driving effect for the movement of the lifting beam 1.

[0024] The damping mechanism 4 includes reinforcing ribs 41, mounting bases 42, oil dampers 43, grooves 44, guide wheels 45, and damping components 46. The reinforcing ribs 41 are evenly distributed in the middle of the top wall of the connecting plate 3. The mounting bases 42 are respectively located on the left and right sides of the upper middle part of the movable frame 2. The oil dampers 43 are all located inside the mounting bases 42. The grooves 44 are all opened at the lower end of the reinforcing ribs 41. The guide wheels 45 are rotatably connected to the upper end of the telescopic end of the oil dampers 43. The outer edge of the guide wheels 45 is adjacent to the vertical... The inner wall of the groove 44 is slidably connected, providing a basis for the dispersion of impact force. The groove 44 and the oil damper 43 are both distributed in an inclined state with the same inclination angle. The groove 44 and the vertically adjacent oil damper 43 are all distributed in a vertical state, which can make multiple oil dampers 43 evenly stressed. The shock absorption components 46 are all set at the upper end of the moving frame 2. The combination of oil damper and rubber damper 463 can absorb energy and reduce shock while also dispersing the impact force, thus improving the shock absorption effect of the electric double girder crane.

[0025] The damping assembly 46 includes an oil damper 461, a mounting plate 462, and a rubber damper 463. The oil damper 461 is respectively located on the left and right sides of the middle of the interior of the movable frame 2. The upper end of the oil damper 461 is fixedly connected to the lower end of the connecting plate 3. The mounting plate 462 is respectively located at the four corners of the upper end of the movable frame 2. The rubber dampers 463 are all located on the side of the mounting plate 462 near the middle of the movable frame 2. The front and rear sides of the connecting plate 3 are fixedly connected to the adjacent vertical rubber dampers 463. The oil damper 461, in conjunction with the rubber damper 463, can absorb energy and damp the vibration more efficiently.

[0026] The shock absorption mechanism 4 also includes a limiting wheel 47 and a limiting plate 48. The limiting wheel 47 is rotatably connected to the left and right sides of the movable frame 2, and the limiting plate 48 is respectively set on the left and right sides of the upper end of the lifting beam 1. The upper ends of the limiting wheel 47 are slidably connected to the top wall of the vertically adjacent limiting plate 48. The limiting wheel 47 and the guide wheel 45 are both made of polyurethane, and the drive wheel 1 8 and the drive wheel 2 10 are both made of metal. They can form a limiting effect on the movable frame 2, making the movable frame 2 move more smoothly.

[0027] The working principle of the electric double-girder crane with shock absorption function provided by this utility model is as follows: Before the electric double-girder crane starts working, the entire equipment is placed on the running track. The external controller controls the winch 6, which releases the wire rope downwards, and the hook 7 also moves downwards. When the hook 7 is in place, it is connected to the cargo. The winch 6 then retracts the wire rope upwards, lifting the cargo. The external controller controls the motor 12 to operate, and the motor 12 drives the corresponding drive wheel 10 to rotate through the reduction gearbox 11. The entire equipment moves left and right on the running track. An external controller controls motor 9 to operate, which drives the corresponding drive wheel 8 to rotate. The winch 6 then moves back and forth on the lifting beam 1. Due to the limiting wheels 47 and 48, the drive wheel 8 remains close to the upper end of the lifting beam 1 during rotation, ensuring smooth movement of goods and reducing vibration. During this process, high-frequency vibration occurs when the wire rope is wound and unwound, and vibration also occurs due to inertia when the equipment starts and stops. The impact force generated by this vibration is transmitted through the mounting frame 5 to the upper part of the connecting plate 3, causing the connecting plate 3 to move downwards. The reinforcing rib 41 also moves downwards accordingly. Because the lower end of the reinforcing rib 41 is... All oil dampers 43 are inclined at a 45-degree angle, and the grooves 44 are perpendicular to the vertically adjacent oil dampers 43. Therefore, the oil dampers 43 can quickly absorb the impact force generated by the grooves 44. As the connecting plate 3 moves downward, the grooves 44 at the lower end of the reinforcing ribs 41 will squeeze the corresponding guide wheels 45. When the guide wheels 45 are squeezed and rotate, they will also apply the impact force to the telescopic ends of the corresponding oil dampers 43. The telescopic ends of multiple oil dampers 43 retract simultaneously and absorb the impact force, dispersing and absorbing a portion of the impact force. The telescopic ends of the second oil damper 461 also retract simultaneously. The damper retracts and absorbs part of the impact force. At the same time, as the connecting plate 3 moves down, the mounting plate 462 remains stationary, and the steel plate on one side of the rubber damper 463, which is in close contact with the mounting plate 462, remains stationary. The steel plate on one side of the rubber damper 463, which is in close contact with the connecting plate 3, moves down, and the rubber block in the middle of the rubber damper 463 deforms under the force. The rubber block absorbs part of the impact force again through the viscoelastic properties and energy dissipation mechanism. The energy absorption of the component force of the oil damper 1 43, together with the energy absorption of the oil damper 2 461 and the rubber damper 463, can quickly and efficiently achieve vibration reduction between the structures of the electric double girder crane.

[0028] It is worth noting that the winch 6 disclosed in the above embodiments is a QPQ-120 winch, motor 9 is an SZG22-F motor, and motor 12 is a Y3-3551-2 motor. The external controller controls the operation of winch 6, motor 9 and motor 12 using methods commonly used in the prior art.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electric double-beam crane having a shock absorbing function, characterized by: Includes a lifting beam (1) and a shock absorption mechanism (4); Lifting beam (1): Its upper end is equipped with a movable frame (2), and the left and right sides of the upper end of the movable frame (2) are slidably connected with connecting plates (3); The damping mechanism (4) includes a reinforcing rib (41), a mounting base (42), an oil damper (43), a groove (44), a guide wheel (45), and a damping assembly (46). The reinforcing rib (41) is evenly arranged in the middle of the top wall of the connecting plate (3). The mounting base (42) is respectively arranged on the left and right sides of the middle of the upper part of the moving frame (2). The oil damper (43) is arranged inside the mounting base (42). The groove (44) is opened at the lower end of the reinforcing rib (41). The guide wheel (45) is rotatably connected to the upper end of the telescopic end of the oil damper (43). The outer edge of the guide wheel (45) is slidably connected to the inner wall of the vertically adjacent groove (44). The damping assembly (46) is arranged at the upper end of the moving frame (2).

2. The electric double-beam crane with a damping function according to claim 1, characterized in that: The groove (44) and the oil damper (43) are both distributed in an inclined state with the same inclination angle. The groove (44) and the vertically adjacent oil damper (43) are both distributed in a vertical state.

3. The electric double-beam crane with a damping function according to claim 1, characterized in that: The shock absorption assembly (46) includes an oil damper (461), a mounting plate (462), and a rubber damper (463). The oil damper (461) is respectively located on the left and right sides of the middle of the moving frame (2). The upper end of the oil damper (461) is fixedly connected to the lower end of the connecting plate (3). The mounting plate (462) is respectively located at the four corners of the upper end of the moving frame (2). The rubber dampers (463) are all located on the side of the mounting plate (462) near the middle of the moving frame (2). The front and rear sides of the connecting plate (3) are fixedly connected to the adjacent vertical rubber dampers (463).

4. An electric double-girder crane with shock absorption function according to claim 1, characterized in that: The shock absorption mechanism (4) also includes a limiting wheel (47) and a limiting plate (48). The limiting wheel (47) is rotatably connected to the left and right sides of the moving frame (2), and the limiting plate (48) is respectively set on the left and right sides of the upper end of the lifting beam (1). The upper end of the limiting wheel (47) is slidably connected to the top wall of the vertically adjacent limiting plate (48).

5. The electric double-beam crane with a damping function according to claim 1, characterized in that: It also includes a winch (6), with an installation frame (5) between the two connecting plates (3). The winch (6) is located in the middle of the installation frame (5). The input end of the winch (6) is electrically connected to an external controller. The outer surface of the winch (6) is wound with evenly distributed steel wire ropes, and the lower end of the steel wire ropes is provided with hooks (7).

6. The electric double-beam crane with a shock-absorbing function according to claim 5, characterized in that: It also includes a drive wheel (8) and a motor (9). The drive wheel (8) is rotatably connected to the four corners inside the mobile frame (2). The lower end of the drive wheel (8) is slidably connected to the surface of the vertically adjacent track at the upper end of the lifting beam (1). The motor (9) is respectively set at the front end of the left and right sides of the mobile frame (2). The input end of the motor (9) is electrically connected to an external controller. The output shaft of the motor (9) is fixedly connected to the end of the vertically adjacent drive wheel (8) away from the middle of the mobile frame (2).

7. The electric double-beam crane with a damping function according to claim 6, characterized in that: It also includes a second motor (12). The front and rear sides of the lifting beam (1) are rotatably connected to the second drive wheel (10). The right ends of the front and rear sides of the lifting beam (1) are provided with a reduction gearbox (11). The second motor (12) is located on the upper end of the reduction gearbox (11). The input end of the second motor (12) is electrically connected to an external controller. The lower end of the output shaft of the second motor (12) is fixedly connected to the upper end of the reduction shaft of the vertically adjacent reduction gearbox (11). The end of the output shaft of the reduction gearbox (11) near the lifting beam (1) is fixedly connected to the end of the vertically adjacent second drive wheel (10) away from the middle of the lifting beam (1).

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