A bucket wheel machine anti-collision device

Abstract

The utility model discloses a kind of bucket wheel machine anti-collision devices, comprising: mounting assembly, including mounting plate and the protective cover of mounting plate one side;Damping mechanism, inside protective cover in mounting assembly is installed, for realizing the anti-collision protection of anti-collision monitoring equipment, wherein, damping mechanism includes the mounting frame installed in protective cover inside, with the annular water bag of mounting frame one side.The utility model movable plate moves under the action of impact force, triggers buffer assembly to carry out secondary buffering, further disperses and absorbs energy, ensure monitoring equipment firm and not be damaged, this buffering mode based on fluid damping, compared with pure mechanical spring, can be more soft, more effectively absorb and dissipate high frequency, violent impact energy, provide reliable first level protection for precision monitoring equipment, prevent it from being damaged or displacement under initial impact, ensure that it can maintain function or easily reset even after collision.

Description

Technical Field

[0001] This utility model relates to the field of bucket wheel excavator technology, and in particular to a bucket wheel excavator anti-collision device. Background Technology

[0002] Bucket wheel excavators, also known as bucket wheel stacker-reclaimers, are high-efficiency loading and unloading machines used in large dry bulk cargo yards. They are mainly used for stacking and reclaiming bulk materials such as coal, ore, and sand. Through the rotation and pitching of the boom and the rotation of the bucket wheel, they achieve continuous material conveying and storage. They can be integrated with unloading machines, belt conveyors, and other equipment to form a mechanized material yard transportation system, and are widely used in industrial sectors such as coal, mining, and ports. Bucket wheel excavators have both stacking and reclaiming operation modes, and their high efficiency, continuous operation, and automation make material loading, unloading, and storage more convenient and efficient.

[0003] Existing technologies, such as the anti-collision device for the boom of a bucket wheel excavator stacker-reclaimer disclosed in CN221274598U, provide shock protection for infrared radar and cameras through buffer springs and telescopic rods composed of fixed frames and guide rods. However, since these detection elements are directly fixed to the mounting frame, they are prone to loosening during collisions, which can prevent the buffer system from functioning properly and may even cause damage due to direct impact on the buffer plate. Therefore, this device has obvious deficiencies in the reliability and effectiveness of anti-collision protection and is difficult to meet the safety requirements under complex working conditions. Utility Model Content

[0004] One objective of this invention is to provide a collision prevention device for bucket wheel excavators. This invention addresses the shortcomings of existing technologies, such as the collision prevention device for the boom of a bucket wheel excavator stacker-reclaimer disclosed in CN221274598U. Although the device uses a buffer spring and a telescopic rod composed of a fixed frame and a guide rod to provide shock protection for the infrared radar and camera, these detection elements are directly fixed to the mounting frame. During a collision, they are prone to loosening and the buffer system may not function properly. In fact, the buffer plate may be damaged due to direct impact. Therefore, this device is significantly inadequate in terms of the reliability and effectiveness of collision protection and cannot meet the safety requirements under complex working conditions.

[0005] A bucket wheel excavator anti-collision device according to an embodiment of the present utility model includes: Mounting components, including a mounting plate and a protective cover on one side of the mounting plate; A shock-absorbing mechanism, installed inside the protective cover of the mounting assembly, is used to provide anti-collision protection for the anti-collision monitoring equipment. The shock-absorbing mechanism includes a mounting frame installed inside the protective cover and an annular water bag on one side of the mounting frame. Movable plates are movably installed on all four sides of the outer side of the mounting frame. A detachable anti-collision monitoring device is installed on one side of the mounting frame. The annular water bag has a water tank inside, and baffles are fixedly installed inside the water tank. The movable plates are connected to the protective cover through a buffer assembly to provide secondary anti-collision buffering for the anti-collision monitoring equipment.

[0006] Preferably, the front end of the protective cover is fitted with a glass cover, which is made of a transparent material.

[0007] Preferably, the collision avoidance monitoring device consists of an infrared reversing radar ranging device, a camera, and a buzzer.

[0008] Preferably, the infrared reversing radar ranging device and the camera are both attached to the inside of the annular water bag.

[0009] Preferably, a water injection pipe is fixedly installed on the outside of the annular water bag, and a plug is installed at the front end of the water injection pipe.

[0010] Preferably, the buffer assembly includes a buffer top plate installed at the end of the movable plate, and a buffer bottom plate installed on the inner wall of the protective cover on the side corresponding to the buffer top plate. A movable column is fixedly provided at the opposite end of the buffer top plate and the buffer bottom plate. A piston is fixedly provided at the end of the movable column. Both pistons are movably disposed inside the air chamber. An air outlet is opened inside the air chamber. A buffer frame is symmetrically fixedly disposed on the outer side of the air chamber. A guide rod is fixedly disposed inside the buffer frame. A slider is movably disposed on the outer side of the guide rod. A connecting rod is rotatably disposed between the buffer top plate and the buffer bottom plate and the slider, respectively.

[0011] Preferably, the buffer top plate is fixedly installed to the movable plate by bolts, and the buffer bottom plate is fixedly installed to the protective cover by bolts.

[0012] Preferably, a spring is fixedly provided between the slider and the guide frame.

[0013] The beneficial effects of this utility model are: This invention effectively avoids the problem of anti-collision monitoring equipment becoming loose, displaced, or even damaged due to rigid installation or insufficient buffering when the bucket wheel excavator encounters a collision, thanks to its shock-absorbing mechanism. In use, the anti-collision monitoring equipment is first installed on a mounting frame, with the movable plate on the outside of the frame connecting to the buffer assembly. This allows for synchronous movement according to the direction of the force generated after the collision, preventing loosening. When the bucket wheel excavator collides, the anti-collision monitoring equipment first contacts the inner side of the annular water bag. The water tank and baffle structure inside the water bag cause water ripples and buffering, absorbing the initial impact energy and preventing the equipment from being directly subjected to force. Simultaneously, the movable plate moves under the impact force, triggering the buffer assembly for secondary buffering, further dispersing and absorbing energy, ensuring the monitoring equipment remains stable and undamaged. This fluid-damped buffering method, compared to pure mechanical springs, can more gently and effectively absorb and dissipate high-frequency, intense impact energy, providing reliable first-level protection for precision monitoring equipment, preventing damage or displacement under initial impact, and ensuring that it maintains its function or is easily reset even after a collision. This invention effectively avoids the problems of buffer systems failing to function properly and being easily damaged by direct impacts through its buffer components. When the impact force is transmitted to the movable plate, the buffer top plate pushes the movable column and piston to move within the air chamber. The gas in the air chamber is released through the air outlet. At the same time, the slider on the guide rod moves relative to the piston under the action of the connecting rod, and the spring is compressed to store energy. The buffer bottom plate fixed to the inner wall of the protective cover and the piston and movable column on it provide a support point for the reaction force. Throughout the process, the impact energy is gradually absorbed and dispersed by the gas compression and spring deformation, avoiding the impact force being concentrated on a single buffer plate. It can effectively absorb and dissipate residual impact force, greatly buffering and reducing the impact speed and force of the movable plate and mounting frame against the inner wall of the protective cover, ensuring the safety of the equipment under extreme impacts. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of one side of a bucket wheel excavator anti-collision device proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of a bucket wheel excavator anti-collision device proposed in this utility model; Figure 3 This is a schematic diagram of the mounting plate structure of the anti-collision device for a bucket wheel excavator proposed in this utility model; Figure 4 This is a schematic diagram of the internal structure of the annular water bag of the anti-collision device for a bucket wheel excavator proposed in this utility model; In the diagram: 1. Mounting components; 101. Mounting plate; 102. Protective cover; 103. Glass cover; 2. Shock absorption mechanism; 201. Mounting bracket; 202. Annular water bag; 2021. Water tank; 2022. Baffle; 2023. Water injection pipe; 2024. Plug; 203. Infrared reversing radar ranging device; 204. Camera; 205. Buzzer; 206. Movable plate; 207. Buffer top plate; 208. Buffer bottom plate; 209. Movable column; 210. Piston; 211. Air chamber; 212. Air outlet; 213. Buffer frame; 214. Guide rod; 215. Slider; 216. Spring; 217. Connecting rod. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0016] refer to Figure 1-4 A bucket wheel excavator anti-collision device, comprising: Mounting component 1 includes mounting plate 101 and protective cover 102 on one side of mounting plate 101; The shock absorption mechanism 2, installed inside the protective cover 102 in the mounting assembly 1, is used to provide anti-collision protection for the anti-collision monitoring equipment. The shock absorption mechanism 2 includes a mounting frame 201 installed inside the protective cover 102, and an annular water bag 202 on one side of the mounting frame 201. Movable plates 206 are movably installed on all four sides of the outer side of the mounting frame 201. A detachable anti-collision monitoring device is installed on one side of the mounting frame 201. The annular water bag 202 contains a water tank 2021, and baffles 2022 are fixedly installed inside each water tank 2021. In use, the anti-collision monitoring equipment is first installed on the mounting frame, and then connected to the buffer assembly by the movable plates on the outer side of the mounting frame. The shock absorption mechanism can adjust the direction of the force generated after a collision according to the direction of the impact. To prevent loosening, when a collision occurs, the anti-collision monitoring device first contacts the inner side of the annular water bag. The water tank and baffle structure inside the water bag cause water ripples and buffering, absorbing the initial impact energy and preventing direct force on the equipment. Simultaneously, the movable plate moves under the impact force, triggering the buffer assembly for secondary buffering, further dispersing and absorbing energy, ensuring the monitoring equipment remains stable and undamaged. This fluid damping-based buffering method, compared to pure mechanical springs, can more gently and effectively absorb and dissipate high-frequency, intense impact energy, providing reliable first-level protection for precision monitoring equipment. The movable plate 206 connects to the protective cover 102 via the buffer assembly to further protect the anti-collision monitoring device. The secondary anti-collision buffer includes a buffer top plate 207 installed at the end of the movable plate 206, and a buffer bottom plate 208 installed on the inner wall of the protective cover 102 corresponding to the buffer top plate 207. Movable columns 209 are fixedly installed at opposite ends of the buffer top plate 207 and buffer bottom plate 208. Pistons 210 are fixedly installed at the ends of the movable columns 209. Both pistons 210 are movably installed inside the air chamber 211. Air vents 212 are opened inside the air chamber 211. Buffer frames 213 are symmetrically fixedly installed on the outer side of the air chamber 211. Guide rods 214 are fixedly installed inside the buffer frames 213. Slider blocks 215 are movably installed on the outer side of the guide rods 214. The buffer top plate 207 and buffer bottom plate 208 are... A connecting rod 217 is rotatably connected between the sliding block 215 and the buffer plate. When the impact force is transmitted to the movable plate, the buffer top plate pushes the movable column and piston to move in the air chamber. The gas in the air chamber is released through the air outlet. At the same time, the sliding block on the guide rod moves relative to the buffer plate under the action of the connecting rod. The spring is compressed and stores energy. The buffer bottom plate fixed on the inner wall of the protective cover and the piston and movable column on it provide the support point for the reaction force. Throughout the process, the impact energy is gradually absorbed and dispersed by the gas compression and spring deformation, avoiding the impact force from being concentrated on a single buffer plate. It can effectively absorb and dissipate the residual impact force, greatly buffering and slowing down the impact speed and force of the movable plate and mounting frame against the inner wall of the protective cover, ensuring the safety of the equipment under extreme impact.

[0017] Example 1: A glass cover 103 is installed at the front end of the protective cover 102. The glass cover 103 is made of transparent material, which not only improves the overall protection level of the protective cover, but also allows external personnel to clearly observe the working status of the internal anti-collision monitoring equipment. The anti-collision monitoring equipment consists of an infrared reversing radar ranging device 203, a camera 204 and a buzzer 205. The infrared reversing radar ranging device 203 and the camera 204 are both attached to the inner side of the annular water bag 202. When a collision occurs, the water bag with a buffering effect comes into contact first, effectively protecting the delicate electronic components and preventing them from being directly damaged by the impact.

[0018] Example 2: A water injection pipe 2023 is fixedly installed on the outside of the annular water bag 202. A plug 2024 is installed at the front end of the water injection pipe 2023 to facilitate the replenishment or replacement of the liquid in the bag as needed, ensuring that the water bag is always in the best working condition and enhancing the practicality of the device. The buffer top plate 207 is fixedly installed to the movable plate 206 by bolts, and the buffer bottom plate 208 is fixedly installed to the protective cover 102 by bolts. The detachable connection method facilitates the installation, maintenance and replacement of parts. A spring 216 is fixedly installed between the slider 215 and the guide frame. When the movable plate 206 is moved by force, the slider slides in the guide frame and compresses the spring 216. The elastic deformation of the spring can further absorb and buffer the impact energy, improving the buffering performance and reliability of the entire shock absorption mechanism.

[0019] Working principle: First, the anti-collision monitoring devices 203 and 204 are installed on the mounting frame 201. These devices are connected to the movable plate 206 on the outside of the mounting frame. The movable plate 206 is connected to the protective cover 102 via a buffer assembly, forming a stable installation base. When the bucket wheel excavator encounters a collision, the anti-collision monitoring devices 203 and 204 first contact the annular water bag 202 attached to their inner side. The water tank 2021 and baffle 2022 structure inside the water bag 202 cause water ripples, absorbing the initial impact energy and preventing direct damage to the equipment. The collision force continues to be transmitted, pushing the movable plate 206 to move. The movement of the movable plate 206 triggers the connected buffer assembly to start working, performing secondary buffering. In the buffer assembly, the buffer top plate 207 moves with the movable plate 206, pushing the movable column 209 and piston 2 on it. 10 moves within the air chamber 211. The gas inside the air chamber 211 releases pressure through the air outlet 212, absorbing some of the impact energy. Simultaneously, the slider 215 on the guide rod 214 moves relative to the guide rod 217. The spring 216 between the slider 215 and the guide frame is compressed and stores energy, further dispersing and absorbing the impact energy. Throughout the process, the impact energy is gradually absorbed and dispersed by water ripples, gas compression, and spring deformation, preventing the impact force from concentrating on a single component. The buffer base plate 208 and its supporting structure on the inner wall of the protective cover provide a reaction force, ensuring effective energy dissipation. Through this multi-stage buffering mechanism, the impact speed and force of the movable plate and mounting frame against the inner wall of the protective cover are effectively reduced, ensuring the stability and safety of the anti-collision monitoring equipment under complex working conditions and preventing loosening and damage.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A collision prevention device for a bucket wheel excavator, characterized in that, include: Mounting assembly (1) includes mounting plate (101) and a protective cover (102) on one side of mounting plate (101). The shock absorption mechanism (2) is installed inside the protective cover (102) in the mounting assembly (1) to provide anti-collision protection for the anti-collision monitoring equipment. The shock absorption mechanism (2) includes a mounting frame (201) installed inside the protective cover (102) and an annular water bag (202) on one side of the mounting frame (201). Movable plates (206) are movably arranged on all four sides of the outer side of the mounting frame (201). A detachable anti-collision monitoring equipment is installed on one side of the mounting frame (201). The annular water bag (202) is provided with a water tank (2021) inside. A baffle (2022) is fixedly arranged inside the water tank (2021). The movable plate (206) is connected to the protective cover (102) through a buffer assembly to provide secondary anti-collision buffer for the anti-collision monitoring equipment.

2. The anti-collision device for a bucket wheel excavator according to claim 1, characterized in that, The protective cover (102) is equipped with a glass cover (103) at its front end, and the glass cover (103) is made of transparent material.

3. The anti-collision device for a bucket wheel excavator according to claim 1, characterized in that, The collision avoidance monitoring device consists of an infrared reversing radar ranging device (203), a camera (204), and a buzzer (205).

4. The anti-collision device for a bucket wheel excavator according to claim 3, characterized in that, The infrared reversing radar ranging device (203) and the camera (204) are both attached to the inside of the annular water bag (202).

5. The anti-collision device for a bucket wheel excavator according to claim 1, characterized in that, A water injection pipe (2023) is fixedly installed on the outside of the annular water bag (202), and a plug (2024) is installed at the front end of the water injection pipe (2023).

6. The anti-collision device for a bucket wheel excavator according to claim 1, characterized in that, The buffer assembly includes a buffer top plate (207) installed at the end of the movable plate (206) and a buffer bottom plate (208) installed on the inner wall of the protective cover (102) on the side corresponding to the buffer top plate (207). A movable column (209) is fixedly provided at the opposite end of the buffer top plate (207) and the buffer bottom plate (208). A piston (210) is fixedly provided at the end of the movable column (209). Both pistons (210) are movably provided inside the air chamber (211). An air outlet (212) is provided inside the air chamber (211). A buffer frame (213) is symmetrically fixedly provided on the outside of the air chamber (211). A guide rod (214) is fixedly provided inside the buffer frame (213). A slider (215) is movably provided on the outside of the guide rod (214). A connecting rod (217) is rotatably provided between the buffer top plate (207) and the buffer bottom plate (208) and the slider (215).

7. A bucket wheel excavator anti-collision device according to claim 6, characterized in that, The buffer top plate (207) is fixedly installed to the movable plate (206) by bolts, and the buffer bottom plate (208) is fixedly installed to the protective cover (102) by bolts.

8. A bucket wheel excavator anti-collision device according to claim 6, characterized in that, A spring (216) is fixedly installed between the slider (215) and the guide frame.

Images