Bridge crane with anti-impact function

Abstract

The utility model relates to the field of cranes, in particular to a bridge crane with an anti-impact function. The bridge crane with the anti-impact function comprises two main beams which are oppositely arranged, end beams are installed at the two ends of the two main beams, and supporting plates are installed on the sides, close to each other, of the two end beams; damping assemblies are mounted at the tops and the bottoms of the sides, close to each other, of the two supporting plates correspondingly, and impact generated during running of the trolley can be absorbed through the damping assemblies. According to the bridge crane with the anti-impact function, a double-protection system is formed through the damping assembly and the buffering assembly, the damper can rapidly consume high-frequency vibration energy, the damping buffering pad reduces the instantaneous impact force peak value through elastic deformation, the buffering spring absorbs energy aiming at low-frequency large-displacement impact, and the impact resistance of the bridge crane is improved. And the two complementarily cover full-band load, so that the impact absorption efficiency is remarkably improved, and vibration transmitted to the main beam and the end beam is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cranes, and in particular to a bridge crane with anti-impact function. Background Technology

[0002] During the lifting and transporting of goods, existing bridge cranes are prone to severe impacts due to the starting, stopping, braking, or collisions of the trolley, leading to structural vibration, wear and even damage to components, seriously affecting the service life of the equipment and operational safety. Existing shock-resistant structures typically do not form a multi-layered coordinated vibration reduction system and cannot cover the entire frequency range of impact loads, resulting in key components such as the crane bridge and main beam still bearing significant impact stress.

[0003] Therefore, it is necessary to provide a new type of bridge crane with impact resistance to solve the above-mentioned technical problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a bridge crane with impact protection function is provided to solve the above-mentioned problems.

[0005] The bridge crane with impact protection function provided by this utility model includes: two opposing main beams; end beams are installed at both ends of the two main beams, and support plates are installed on the relatively close sides of the two end beams; wherein, shock-absorbing components are installed at the top and bottom of the relatively close sides of the two support plates, and the shock-absorbing components can absorb the impact generated by the trolley during operation; buffer components are provided on both sides of the shock-absorbing components on the two support plates, and the buffer components can further attenuate the impact energy and reduce the impact on the crane structure.

[0006] Preferably, the shock absorption assembly includes two shock absorption mounting plates mounted on the support plate, and the two shock absorption mounting plates are arranged opposite to each other. The side of the two shock absorption mounting plates near the support plate is connected to a guide rail. Two shock absorption sliders are slidably connected on the guide rail. The side of the two shock absorption sliders near the shock absorption mounting plates is slidably connected to the shock absorption mounting plates.

[0007] Preferably, each of the two damping sliders is connected to a damping rod on the side away from the support plate, and the two damping rods are connected to a damping buffer plate on the side away from the damping slider. Each of the two damping sliders is connected to a damper on the side away from each other, and the side of each damper is connected to a damping mounting plate. The side of the damping buffer plate away from the support plate is connected to a damping pad.

[0008] Preferably, the buffer assembly includes two buffer mounting plates connected to one side of the support plate, and the two buffer mounting plates are arranged opposite to each other. A guide slide rod is connected between the two buffer mounting plates, and buffer sliders are slidably connected to both outer ends of the guide slide rod.

[0009] Preferably, each of the two buffer sliders is connected to a buffer rod on the side away from the support plate, and the side of the two buffer rods away from the buffer sliders is connected to the shock-absorbing buffer plate. Both outer ends of the two guide sliders are fitted with buffer springs, and the buffer springs are located between the buffer sliders and the buffer mounting plate.

[0010] Preferably, the four corners of the support plate and the shock-absorbing buffer plate are connected to telescopic rods on the side closest to each other, and a return spring is sleeved on the outside of each telescopic rod.

[0011] Compared with related technologies, the bridge crane with anti-impact function provided by this utility model has the following beneficial effects:

[0012] This invention forms a dual protection system through shock absorption components and buffer components. The damper can quickly dissipate high-frequency vibration energy, the shock absorption buffer pad reduces the peak instantaneous impact force through elastic deformation, and the buffer spring absorbs energy for low-frequency large displacement impacts. The two complement each other to cover the entire frequency band load, significantly improving the impact absorption efficiency and reducing the transmission of vibration to the main beam and end beam. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of a bridge crane with anti-impact function provided by this utility model;

[0014] Figure 2 for Figure 1 The diagram shows the structure of the telescopic rod.

[0015] Figure 3 for Figure 1 The diagram shows the structure of the shock absorption assembly.

[0016] Figure 4 for Figure 1 The diagram shows the structure of the buffer component.

[0017] The following are the labeling elements in the diagram: 1. Main beam; 11. End beam; 12. Support plate; 2. Vibration damping mounting plate; 21. Guide slide rail; 22. Vibration damping slider; 23. Vibration damping rod; 24. Vibration damping buffer plate; 25. Damper; 26. Vibration damping buffer pad; 3. Buffer mounting plate; 31. Guide slide rod; 32. Buffer slider; 33. Buffer rod; 34. Buffer spring; 4. Telescopic rod; 41. Return spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0020] This utility model provides a bridge crane with impact resistance function, which includes: two opposing main beams 1; end beams 11 are installed at both ends of the two main beams 1, and support plates 12 are installed on the relatively close side of the two end beams 11; wherein, shock-absorbing components are installed at the top and bottom of the relatively close side of the two support plates 12, and the shock-absorbing components can absorb the impact generated by the trolley during operation; buffer components are provided on both sides of the shock-absorbing components on the two support plates 12, and the buffer components can further attenuate the impact energy and reduce the impact on the crane structure.

[0021] It should be noted that: the main beam 1, as the primary load-bearing structure of the bridge crane, supports the crane's trolley, hoisting mechanism, and other auxiliary equipment, while also bearing the weight of the hoisted goods and the horizontal load generated during trolley operation. The end beam 11 connects two opposing main beams 1, forming the crane's bridge frame to ensure structural stability; it also provides the mounting foundation for the support plate 12, vibration damping components, and buffer components. The support plate 12 is fixed to the inner side of the end beam 11, providing mounting positions for the vibration damping components and buffer components. The vibration damping components are located at the top and bottom of the two support plates 12 on the relatively close side, absorbing the impact energy during trolley operation and reducing vibration amplitude. The buffer components are located on both sides of the vibration damping components on the support plate 12, supplementing the vibration damping components, further dissipating impact energy and improving the stability of the impact resistance effect.

[0022] In an embodiment of this utility model, the shock absorption assembly includes two shock absorption mounting plates 2 mounted on the support plate 12, and the two shock absorption mounting plates 2 are arranged opposite to each other. The side of the two shock absorption mounting plates 2 closest to the support plate 12 is connected to a guide rail 21. Two shock absorption sliders 22 are slidably connected to the guide rail 21. The side of the two shock absorption sliders 22 closest to the shock absorption mounting plates 2 are slidably connected to the shock absorption mounting plates 2. The side of the two shock absorption sliders 22 furthest from the support plate 12 is connected to a shock absorption rod 23. The side of the two shock absorption rods 23 furthest from the shock absorption sliders 22 is connected to a shock absorption buffer plate 24. The side of the two shock absorption sliders 22 furthest from each other is connected to a damper 25. The side of the two dampers 25 furthest from each other is connected to the shock absorption mounting plates 2. The side of the shock absorption buffer plate 24 furthest from the support plate 12 is connected to a shock absorption buffer pad 26.

[0023] It should be noted that: the damping mounting plates 2 are mounted opposite each other on the support plate 12, forming the support frame of the damping assembly. The guide rail 21 connects the two damping mounting plates 2 laterally and is located on the side closer to the support plate 12. Its surface has grooves to provide a linear sliding track for the damping slider 22, limiting its direction of movement. The damping slider 22 is slidably connected to the guide rail 21, one on each side, and can move laterally along the rail. One end of the damping rod 23 is connected to the damping slider 22, and the other end is connected to the damping buffer plate 24, transferring the impact load borne by the damping buffer plate 24 to the damping slider 22. One end of the damper 25 is connected to the damping slider 22, and the other end is fixed to the damping mounting plate 2. When the damping slider 22 is impacted and slides, the damper 25 is compressed or stretched, absorbing energy through elastic deformation. At the same time, the damping medium generates viscous resistance to dissipate energy. The shock-absorbing buffer pad 26 is fixed to the surface of the shock-absorbing buffer plate 24 away from the support plate 12. It is made of elastic materials such as polyurethane. When it collides with the car, it first absorbs part of the energy through elastic deformation, reducing the peak value of the instantaneous impact force.

[0024] In an embodiment of this utility model, the buffer assembly includes two buffer mounting plates 3 connected to one side of the support plate 12, and the two buffer mounting plates 3 are arranged opposite to each other. A guide slide rod 31 is connected between the two buffer mounting plates 3. Buffer sliders 32 are slidably connected to both outer ends of the guide slide rod 31. Buffer rods 33 are connected to the side of the two buffer sliders 32 away from the support plate 12. The side of the two buffer rods 33 away from the buffer sliders 32 is connected to the shock-absorbing buffer plate 24. Buffer springs 34 are sleeved on both outer ends of the two guide slide rods 31, and the buffer springs 34 are located between the buffer sliders 32 and the buffer mounting plates 3.

[0025] It should be noted that: the buffer mounting plates 3 are installed opposite each other on the left and right sides of the support plate 12, the guide slide rod 31 is installed between the two buffer mounting plates 3, and the buffer slider 32 is slidably sleeved on the outer ends of the guide slide rod 31, serving as an intermediate carrier for impact transmission. The impact force of the shock-absorbing buffer plate 24 is transmitted to the buffer spring 34 through the buffer rod 33. One end of the buffer rod 33 is connected to the buffer slider 32, and the other end is fixed to the side of the shock-absorbing buffer plate 24, arranged vertically, connecting the shock-absorbing buffer plate 24 and the buffer slider 32 to transmit the impact load. The buffer spring 34 is sleeved on the outside of the guide slide rod 31, located between the buffer slider 32 and the buffer mounting plate 3, with both ends abutting against the buffer slider 32 and the buffer mounting plate 3 respectively. When the buffer slider 32 is impacted and slides outward, the buffer spring 34 is compressed, absorbing energy through elastic deformation; after the impact disappears, the spring slowly rebounds, avoiding a sudden release of energy and secondary impact. The dampers 25 complement each other: the dampers 25 in the shock absorption assembly mainly consume high-frequency vibration energy, while the buffer spring 34 is better at absorbing low-frequency large displacement impacts. The combination of the two covers the entire frequency range of impact loads.

[0026] In the embodiments of this utility model, the four corners of the support plate 12 and the shock-absorbing buffer plate 24 are connected to telescopic rods 4 on the side closest to each other, and a return spring 41 is sleeved on the outside of each telescopic rod 4.

[0027] It should be noted that the telescopic rods 4 are installed at the four corners of the support plate 12 and the shock-absorbing buffer plate 24, respectively, and are capable of telescopic movement. They consist of inner and outer sleeves, with the inner sleeve sliding within the outer sleeve to achieve the telescopic function. Return springs 41 are sleeved on the outside of each telescopic rod 4, with both ends connected to the support plate 12 and the shock-absorbing buffer plate 24, respectively. The telescopic rods 4 limit the movement trajectory of the shock-absorbing buffer plate 24. When the trolley experiences an impact, the shock-absorbing buffer plate 24 will displace under the impact. The telescopic rods 4 ensure that the shock-absorbing buffer plate 24 moves smoothly along the axial direction of the telescopic rods, preventing it from swaying, tilting, or shifting, thus ensuring the stable operation of the entire shock absorption and buffering system. The return springs 41 have a buffering and energy-absorbing function. When impacted, the shock-absorbing buffer plate 24 moves towards the support plate 12, at which point the return spring 41 is compressed. During this process, the spring converts the kinetic energy of the impact into elastic potential energy and stores it, thereby reducing the impact on the crane structure.

[0028] The working principle of the bridge crane with impact protection function provided by this utility model is as follows: When the trolley of the bridge crane experiences an impact (such as starting, stopping, or collision), the impact force first acts on the shock-absorbing buffer pad 26 on the outside of the shock-absorbing buffer plate 24. Its elastic material absorbs part of the energy through deformation, reducing the peak impact value. Subsequently, the impact force is transmitted to the shock-absorbing slider 22 through the shock-absorbing rod 23, driving it to slide to both sides along the guide rail 21, compressing the damper 25. The damper 25, through the dual action of its internal elastic element and viscous medium, converts kinetic energy into heat energy and elastic potential energy, consuming energy. At the same time, the lateral displacement of the shock-absorbing buffer plate 24 is transmitted to the buffer slider 32 through the buffer rod 33, causing it to slide to the outside along the guide rail 31, compressing the buffer spring 34. The buffer spring 34 absorbs the remaining impact energy through elastic deformation and slowly rebounds when the impact weakens, avoiding a sudden release of energy. During this process, the telescopic rod 4 restricts the movement direction of the shock-absorbing buffer plate 24 to ensure its smooth axial movement and prevent deviation; the return spring 41 is compressed simultaneously to store elastic potential energy, and pushes the shock-absorbing buffer plate 24 to reset after the impact disappears, so that the whole system returns to its initial state.

[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. A bridge crane having a shock absorbing function, characterized by, include: Two opposing main beams (1); Both ends of the two main beams (1) are equipped with end beams (11), and support plates (12) are installed on the relatively close side of the two end beams (11). Among them, the top and bottom of the two support plates (12) are respectively installed with shock-absorbing components, and the shock-absorbing components can absorb the impact generated when the trolley is running. The two support plates (12) are provided with buffer components on both sides of the shock absorption component, and the impact energy can be further attenuated by the buffer components, reducing the impact on the crane structure.

2. The bridge crane with an anti-impact function according to claim 1, characterized in that, The shock absorption assembly includes two shock absorption mounting plates (2) installed on the support plate (12), and the two shock absorption mounting plates (2) are arranged opposite to each other. The two shock absorption mounting plates (2) are connected to a guide rail (21) on the side near the support plate (12). Two shock absorption sliders (22) are slidably connected on the guide rail (21). The side of the two shock absorption sliders (22) near the shock absorption mounting plate (2) is slidably connected to the shock absorption mounting plate (2).

3. The bridge crane with an anti-impact function according to claim 2, characterized in that, Both of the two damping sliders (22) are connected to damping rods (23) on the side away from the support plate (12). Both of the two damping rods (23) are connected to a damping buffer plate (24) on the side away from the damping sliders (22). Both of the two damping sliders (22) are connected to dampers (25) on the side away from each other. The side away from each other of the two dampers (25) is connected to the damping mounting plate (2) respectively. The side of the damping buffer plate (24) away from the support plate (12) is connected to a damping pad (26).

4. The bridge crane with an anti-impact function according to claim 3, characterized in that, The buffer assembly includes two buffer mounting plates (3) connected to one side of the support plate (12), and the two buffer mounting plates (3) are arranged opposite to each other. A guide slide rod (31) is connected between the two buffer mounting plates (3), and buffer sliders (32) are slidably connected to both outer ends of the guide slide rod (31).

5. The bridge crane with an anti-impact function according to claim 4, characterized in that, Both buffer sliders (32) are connected to buffer rods (33) on the side away from the support plate (12). The side of the two buffer rods (33) away from the buffer sliders (32) is connected to the shock-absorbing buffer plate (24). Both outer ends of the two guide sliders (31) are fitted with buffer springs (34), and the buffer springs (34) are located between the buffer sliders (32) and the buffer mounting plate (3).

6. The bridge crane with an anti-impact function according to claim 5, characterized in that, The support plate (12) and the shock-absorbing buffer plate (24) are connected to four corners on the side closest to each other. Each of the telescopic rods (4) is fitted with a return spring (41) on its outer side.

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