Automatic aligning device for bulk material filling

Abstract

The invention relates to the technical field of material filling equipment, in particular to an automatic aligning device for bulk material filling. Comprising an automatic positioning system which adopts a visual identification technology to monitor the position of a vehicle and the state of a tank opening in real time and ensure accurate positioning of a discharging pipe and a tank truck feeding opening; the vehicle guiding system is electrically connected with the automatic positioning system, comprises a voice broadcasting system and a display system and is used for displaying the butt joint state of the discharging pipe and the discharging opening to a driver in real time; and the aligning system is electrically connected with the automatic positioning system and drives the discharging pipe to move to the feeding port according to the vehicle identification and positioning result, and discharging aligning is achieved. Through a visual identification technology, accurate identification and automatic guidance of a vehicle position are realized, a driver is assisted to rapidly carry out fine adjustment on the vehicle, and automatic loading is completed through linkage with loading equipment. According to the system, the loading efficiency can be remarkably improved, the labor cost is reduced, and the loading precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of material filling equipment, and in particular to an automatic porting device for bulk material filling. Background Art

[0002] Bulk materials refer to solid materials that are not packaged and are transported, stored and handled in a loose state. Such materials usually exist in the form of granules, powders or blocks, such as lime powder, cement powder, ore aggregates, etc. After processing, bulk materials are usually stored in silos. According to demand, they are injected into different material vehicles such as tank trucks, tank trucks, containers, etc. through the unloading structure and transported by internal filling.

[0003] However, there are many problems in the filling process. For example, the parking position of the tank truck is not marked, which leads to the misalignment of the discharge pipe and the tank port of the material truck. The position of the tank truck needs to be readjusted, which not only affects the filling efficiency, but also affects the subsequent overall logistics scheduling. Most of the existing scheduling and adjustment systems rely on the driver to control and adjust the position of the tank truck. Not only is the adjustment troublesome and inefficient, but the docking accuracy is also poor. Therefore, before the tank port and the material port are docked, a guidance system is needed to show the driver the position status of the tank truck and the silo discharge port in real time to facilitate accurate docking of the material port.

[0004] In addition, during filling, especially for powder materials such as cement, dust will be generated due to factors such as free fall and changes in air pressure in the tank, as well as the spillage of residual materials when the filling port is separated. The generation of dust will not only cause material loss, with a dust loss rate of 0.5%-3%, resulting in cost loss; and the flying dust will fall on the equipment, which can easily cause mechanical wear and jamming, increase the risk of circuit short circuits, and increase safety issues; in addition, the cleaning of dust not only increases the burden on the staff (manpower cleaning) and equipment costs (purchase of dust cleaning equipment), but also the time taken by cleaning also takes up the filling time, affecting the overall filling efficiency. Dust also has a serious impact on the health of the staff.

[0005] Therefore, developing a system and a tank mouth docking device with better docking guidance effect is of great significance for the positioning accuracy and efficiency of the bulk material tank filling port. Summary of the invention

[0006] The purpose of the present invention is to solve the problems of poor guiding effect of pipe orifice docking and dust generation in the prior art, and to propose an automatic docking device for bulk material filling.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: Automatic filling device for bulk materials, including: Automatic positioning system, which adopts visual recognition technology to monitor the vehicle position and the state of the canning port in real time, ensuring the accurate positioning of the feeding pipe and the feeding port of the tank truck; Vehicle guiding system, electrically connected to the automatic positioning system, including a voice broadcast system and a display system, which display the docking state of the feeding pipe and the feeding port to the driver in real time; Docking system, electrically connected to the automatic positioning system, which drives the feeding pipe to move to the feeding port according to the results of vehicle identification and positioning, realizing feeding docking.

[0008] Preferably, an installation ring is provided at the port of the feeding pipe. A support ring is hung at the lower end of the installation ring. A plurality of connecting rods are rotatably installed on the support ring. The lower ends of the plurality of connecting rods tend to converge under the drive of elastic members. An airbag I is provided at the lower end of the installation ring. The ends of the plurality of connecting rods are commonly connected to an airbag II. The airbag I and the airbag II are communicated with each other. The inner ring at the lower end of the installation ring is hermetically connected to a flexible hopper. The lower end of the hopper is hermetically connected to the bottom wall of the airbag II; the airbag I and the airbag II are in an unsaturated expansion state.

[0009] Preferably, the lower end of the feeding pipe is connected with an inner ring extending into the feeding pipe. Two vertical sliding grooves are symmetrically provided on the inner wall of the inner ring. Sliders are vertically slidably installed in the two sliding grooves. A rotating shaft is rotatably installed on the two sliders together. A distributing fan is sleeved on the rotating shaft. Polygonal blocks are provided at both ends of the rotating shaft and penetrate through the sliders. Engaging grooves matching with the polygonal blocks are provided at the lower part of the sliding grooves close to the lower ends. Through holes penetrating the inner ring are provided at the bottom walls of the two sliding grooves. Airbag III communicated with the airbag I is inserted into the through holes.

[0010] Preferably, a limiting ring is provided on the inner and outer walls of the installation. The limiting ring is conical, and the diameter of the limiting ring is larger than the outer diameter of the feeding port.

[0011] Preferably, a pressurizing device is further included. The pressurizing device includes a plurality of pressurizing tanks arranged in a circular array around the axis of the installation ring. The pressurizing tanks are arranged upside down. Pistons are embedded in the pressurizing tanks. Pressure handles extending out of the pressurizing tanks are provided at the lower ends of the pistons. Springs are provided between the pistons and the pressurizing tanks.

[0012] Preferably, the inner walls on the opposite sides of the two sliding grooves are sunken inclined surfaces inclined towards the axis of the installation ring.

[0013] Preferably, the feeding pipe includes a fixed feeding pipe connected to the silo and a movable feeding pipe driven by a telescopic rod. A telescopic cover for buckling and fixing the fixed feeding pipe is provided at the upper end of the movable feeding pipe. A closable bin gate is provided at the port of the fixed feeding pipe.

[0014] Preferably, the installation ring is detachably installed on the movable feeding pipe.

[0015] Preferably, the bin gate is arranged offset from the axis of the movable feeding pipe.

[0016] Preferably, the diameter of the support ring is larger than the inner diameter of the inner ring.

[0017] Compared with the prior art, the present invention provides an automatic bulk material filling device, which has the following beneficial effects: 1. The present invention uses visual recognition technology to achieve accurate identification and automatic guidance of vehicle positions, assist drivers to quickly fine-tune vehicles, and work with loading equipment to complete automated loading. The system can significantly improve loading efficiency, reduce labor costs, and improve loading accuracy. It is suitable for bulk loading of powdery and granular materials such as cement and fly ash, and provides efficient and intelligent loading solutions for cement plants, sand and gravel plants and other enterprises, with significant economic and social benefits.

[0018] 2. In the process of docking the feeding tube with the feeding port, the first airbag is squeezed, and the gas is squeezed into the second airbag. The second airbag swells and rests against the inner wall of the feeding port, thereby forming a seal between the hopper and the feeding port to prevent the dust generated when the bulk material falls from flying to the outside, thereby avoiding the generation of flying dust. The gas flow between the first airbag and the second airbag is coordinated, relying on the descending action required by the feeding itself, to achieve the flow and transportation of the gas, without the need to set up additional pressure regulating equipment, such as adding components such as air pumps, which can be adjusted automatically, reducing the operating steps of gas pressure regulation and reducing the complexity of control.

[0019] 3. The present invention is also provided with airbag 3. Before docking, airbag 3 is deflated, and the polygonal block is embedded in the embedded groove and restricted from rotating. At this time, the material distribution fan is restricted and will not rotate easily, and will make abnormal noise when not in use; when filling and docking, airbag 3 is also inflated and pushes up the slider, the two sliders are lifted up, the polygonal block is separated from the embedded groove, and the rotating shaft is no longer restricted, and the material distribution fan can rotate and be used normally.

[0020] Other advantages, objectives and features of the present invention will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall three-dimensional schematic diagram of the present invention.

[0022] Figure 2 For the present invention Figure 1 A full cross-sectional diagram of .

[0023] Figure 3 It is a stereoscopic schematic diagram of the assembly on the feed tube of the present invention.

[0024] Figure 4 For the present invention Figure 3 Schematic diagram of the assembly on the moving material tube.

[0025] Figure 5 Side view plane schematic diagram of Figure 4 of the present invention.

[0026] Figure 6 Stereoscopic schematic diagram of Figure 4 of the present invention with the fixed material pipe removed.

[0027] Figure 7 Cross-sectional schematic diagram of Figure 6 of the present invention at A-A with the hopper removed.

[0028] Figure 8 Partial schematic diagram at C of Figure 7 of the present invention.

[0029] Figure 9 Partial schematic diagram at D of Figure 8 of the present invention.

[0030] Figure 10 Cross-sectional schematic diagram of Figure 6 of the present invention at B-B with the hopper removed.

[0031] Figure 11 Schematic diagram of the local airbag three in a compressed state at E of Figure 10 of the present invention.

[0032] Figure 12 Schematic diagram of the state when the moving material pipe is docked with the feeding port of Figure 7 the present invention.

[0033] Figure 13 Partial schematic diagram at F of Figure 12 of the present invention.

[0034] Figure 14 Schematic diagram of the state when the moving material pipe is docked with the feeding port of Figure 10 the present invention.

[0035] Figure 15 Schematic diagram of the states of airbag one, airbag two, and airbag three when the moving material pipe of the present invention is docked with the feeding port.

[0036] Figure 16 Stereoscopic schematic diagram of Figure 6 the present invention with the mounting ring removed.

[0037] Figure 17 Stereoscopic schematic diagram of Figure 16 the present invention with the hopper removed.

[0038] Figure 18 Connection schematic diagram of the inclined hook, support ring, connecting rod, and elastic member of the present invention.

[0039] In the figure: 1. silo; 2. feed pipe; 201. fixed feed pipe; 202. movable feed pipe; 203. telescopic cover; 204. silo gate; 3. mounting ring; 4. oblique hook; 5. support ring; 6. connecting rod; 7. elastic member; 8. airbag one; 9. airbag two; 10. airbag three; 11. inner ring; 12. slide groove; 13. slider; 14. material dividing fan; 1401. rotating shaft; 15. polygonal block; 16. embedded groove; 17. sealing plate; 18. spring; 19. limit ring; 20. pressurized tank; 21. piston; 22. pressure handle; 23. compression spring; 24. feeding port; 25. hopper; 26. bracket. DETAILED DESCRIPTION

[0040] The following will be combined with the attached embodiment of the present invention Figures 1 - 18 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Embodiment 1: In order to better position and guide the filling docking, this embodiment provides a bulk material filling automatic docking device, including: The automatic positioning system uses visual recognition technology to monitor the vehicle position and tank filling port status in real time to ensure accurate positioning of the feed pipe 2 and the tanker inlet 24; The vehicle guidance system is connected to the automatic positioning system in communication, including a voice broadcast system and a display system, which can show the driver the docking status of the unloading pipe 2 and the unloading port in real time; The docking system is connected to the automatic positioning system for communication, and drives the unloading pipe 2 to move to the feeding port 24 according to the results of vehicle identification and positioning, so as to realize unloading docking.

[0042] The specific embodiments are: Multiple groups of industrial cameras, optical lenses, laser radars, and cameras are set up around the unloading area of ​​silo 1. The industrial cameras (global shutter cameras, such as Basler ace series, with a resolution ≥ 5 million pixels) and optical lenses (telecentric lenses or high-resolution fixed-focus lenses) are connected to the computer via a processor and a communication system (such as a wireless Bluetooth system or a wired communication system).

[0043] Near the unloading area, there is a voice broadcast system (such as an electric horn) connected to the computer, a display screen located on the side of the tanker's forward path (not interfering with the tanker's trajectory), and an alarm (such as a flashing light). The alarm is set on the display screen for the driver to observe. Preferably, the display screen can be raised and lowered, so that the placement of the display screen is more flexible during filling.

[0044] The position of the granary discharge pipe 2 and the position of the tank truck are monitored in real time through multiple sets of industrial cameras and optical lenses, and the acquired status information is transmitted to the computer through the communication system. The acquired image information is subjected to 2D template matching or feature point comparison through the database of computer software (template matching and positioning based on OpenCV, target detection of the standard YOLO model, SVM, 2D visual positioning, Siemens SIMATIC Vision), that is, the positional relationship photo of the vertical state of the tank truck feed port 24 and the discharge pipe 2 in reality is compared with the standard photo in the database, so as to determine whether the positional relationship between the discharge pipe 2 and the tank truck feed port 24 is qualified (vertical alignment).

[0045] The tanker images acquired at the same time are displayed in real time on the display screen (similar to monitoring), and standard photos are listed on the display screen at the same time. The real-time images are compared with the standard photos to facilitate the driver to observe the positional relationship between the tanker inlet 24 and the discharge pipe 2, and to determine the difference from the accurate docking, so as to facilitate the driver to adapt and adjust the tanker.

[0046] The visual recognition technology uses the optical center as the origin to construct a 3D camera coordinate system on the computer software. The position status of the tank truck is obtained in real time from the coordinate system, and compared with the standard position of the tank truck, and the differential data is directly obtained. The voice broadcast system is used to broadcast the position of the tank truck to inform the driver, so that the driver can adjust the position conveniently.

[0047] There are two operating states in this solution: The first is to construct a lifting discharge pipe 2. At this time, according to the positioning and guidance of the system, the driver is assisted to quickly adjust the observation position to correct the positional relationship between the tank truck feed port 24 and the discharge pipe 2. The discharge pipe 2 is lowered to complete the filling docking.

[0048] The second is to construct a multi-dimensional mobile feeding pipe 2, control the lifting of the feeding pipe 2 through a lifting structure (any one of a hydraulic rod, a pneumatic rod, an electric telescopic rod, and a winch pulley system), and then control the deflection of the feeding pipe 2 through a rotating arm. At this time, the driver does not need to adjust the position of the tank truck (except when the tank truck is parked sideways for more than half a meter). The position of the feeding pipe 2 is controlled by the rotating arm and the lifting structure through the information obtained by the positioning system to ensure that the feeding pipe 2 can be flexibly moved to the position of the tank truck inlet 24 to achieve automatic filling and matching.

[0049] The above process uses a PLC control programming system or an industrial-grade computer as the control center, integrating Internet of Things technology to achieve remote monitoring and control of filling, ensuring the automation and intelligence of the filling process, thereby greatly improving the filling efficiency.

[0050] Workflow: S1. Vehicle identification and positioning: When a vehicle enters the filling area, the industrial camera starts working, calibrates the X / Y axis distance through the captured photos, and monitors the vehicle position and filling port status in real time.

[0051] S2. Vehicle movement and matching: Based on the results of vehicle identification and positioning, the driver is reminded to move the vehicle to the designated location through voice and display screen to achieve automatic matching.

[0052] S2-1. Vehicle guidance: Automatically adjust the working status of the loading equipment according to the visual positioning results, and assist the driver to make fine adjustments through display screens or voice prompts to ensure a smooth loading process.

[0053] S3. Movement and alignment of the unloading port: Based on the results of vehicle identification and positioning, the mobile unloading device starts working, moves the unloading port to the designated position of the vehicle, and realizes automatic alignment.

[0054] S4. Filling process control: The intelligent control system controls the amount of bulk materials delivered based on the information provided by the material management system to ensure the accuracy and efficiency of the filling process.

[0055] S5. Real-time monitoring and adjustment: During the filling process, the intelligent control system monitors the material flow, compartment status and other information in real time, dynamically adjusts the material discharge speed and control strategy to ensure the smooth progress of the filling process.

[0056] Through visual recognition technology, the vehicle position can be accurately identified and automatically guided, the driver can be assisted to quickly fine-tune the vehicle, and the loading equipment can be linked to complete automatic loading. The system can significantly improve loading efficiency, reduce labor costs, and improve loading accuracy. It is suitable for bulk loading of powdery and granular materials such as cement and fly ash, and provides efficient and intelligent loading solutions for cement plants, sand and gravel plants and other enterprises, with significant economic and social benefits.

[0057] In this solution, a weighing device such as a floor scale is also provided at the filling position, which cooperates with the material valve of the discharge pipe 2 to dynamically monitor the filling volume of the tank truck and realize quantitative loading.

[0058] Embodiment 2: In order to avoid dust during the filling process, the bulk material filling automatic docking device also includes a sealing system, including: a metal mounting ring 3 arranged at the end of the feeding pipe 2. The lower end of the mounting ring 3 is located near the center line, and a plurality of metal oblique hooks 4 are arranged in a circular array, and the oblique hooks 4 are fixed to the mounting ring 3 by welding or screw fastening. The number of oblique hooks 4 is not less than four, and the four oblique hooks 4 are arranged at equal intervals to ensure uniform force distribution at the connection point.

[0059] A metal collar one is provided at the lower end of each of the multiple inclined hooks 4. A metal support ring 5 is jointly sleeved inside the multiple collars one to achieve the hanging connection of the support ring 5. The support ring 5 is firmly connected to each collar one by screws to prevent deflection and misalignment after installation.

[0060] Each support ring 5 is provided with a notch, and a straight rotating shaft is provided at the notch. A metal connecting rod 6 is rotatably installed on each rotating shaft. The multiple connecting rods 6 are driven by an elastic member 7 so that the lower ends tend to converge. For example, a torsion spring is provided between the connecting rod 6 and the rotating shaft. Under the action of the elastic force of the torsion spring, the lower ends of the multiple connecting rods 6 tend to deflect towards the axial center direction; or a collar two is provided at the lower end of each connecting rod 6, and an elastic ring, such as a rubber ring or a rubber cord, is jointly embedded inside the multiple collars two. Under the tightening action of the elastic force of the elastic ring, the lower ends of the multiple connecting rods 6 also tend to converge.

[0061] An airbag one 8 is provided at the lower end of the mounting ring 3. The airbag one 8 is fixed to the mounting ring 3 by means of gluing or the like. The airbag one 8 is located outside the annular outer ring formed by the multiple inclined hooks 4. An outwardly bent hook is provided at the lower end of each connecting rod 6. An airbag two 9 is jointly sleeved on the hooks of the multiple connecting rods 6. The airbag two 9 is fixed to the hooks of each connecting rod 6 by means of gluing or the like. At least one air pipe is connected between the airbag two 9 and the airbag one 8 to achieve the through connection of the airbag one 8 and the airbag two 9. The airbag one 8 and the airbag two 9 are in an unsaturated expansion state without external force and pressurization.

[0062] A flexible hopper 25 is provided on the mounting ring 3. The hopper 25 is firmly installed or adhesively connected to the mounting ring 3 through a flange and a gasket to achieve a sealed installation; the connection position between the upper end of the hopper 25 and the mounting ring 3 is located inside the annular inner ring formed by the multiple inclined hooks 4. The lower end of the hopper 25 is hermetically connected to the bottom wall of the airbag two 9 by means of gluing or the like.

[0063] When the connecting rod 6 deflects towards the axial center, the hopper 25 is in a folded state.

[0064] The hopper 25 is composed of a multi-layer structure, which is composed of wear-resistant cloth, mesh cloth, wear-resistant cloth, and metal woven mesh from the outside to the inside. The wear-resistant cloth is made of a cloth with good wear resistance, such as Cordura nylon, and has two layers, the inner and outer layers, which are the base layer, providing the hopper 25 with good wear resistance. The mesh cloth is a sandwich mesh cloth, the upper layer is a mesh cloth, the middle layer is a connected monofilament cloth, and the bottom surface is a densely woven flat surface cloth, which has good resilience, provides impact buffering protection, and is wear-resistant. The metal woven mesh is a stainless steel woven mesh, which is corrosion-resistant, wear-resistant, and impact-resistant. The hopper 25 is composed of this multi-layer structure, which does not affect the opening and contraction performance of the hopper 25, and has good wear resistance and impact resistance to falling powder, thereby increasing the service life of the hopper 25. In particular, the specially built-in metal woven mesh is specially designed to directly withstand the impact of powder and reduce the wear of other material layers of the hopper 25. The metal woven mesh adopts twill weaving and has better flexibility.

[0065] According to the above technical solution: After the tank truck and the feed pipe 2 are positioned, the feed pipe 2 descends and gradually docks with the tank inlet 24. In this process, the lower end of the hopper 25 is connected to the airbag 29, and under the traction of the elastic member 7, it generally presents a cone state, which is convenient for insertion into the tank truck feed port 24. The airbag 29 is wrinkled synchronously with the hopper 25, and most of the gas in the airbag is gathered in the airbag 1 8. When the feed pipe 2 is docked with the feed port 24, the airbag 1 8 first abuts against the end face of the feed port 24, and the airbag 1 8 is squeezed. The gas in the airbag 1 8 is squeezed into the airbag 29, and the airbag 29 bulges and presents a ring shape. Multiple connecting rods 6 are linked to open the hopper 25 to reduce interference with the falling of bulk materials. The ring-shaped airbag 29 abuts against the inner wall of the tank truck feed port 24.

[0066] According to the above scheme, airbag 2 9 expands and presses against the inner wall of the feed port 24, thereby forming a sealing ring between the hopper 25 and the feed port 24, preventing the dust generated when the bulk material falls from flying to the outside, thereby avoiding the generation of flying dust. Airbag 1 8 is squeezed and wrinkled, forming an auxiliary sealing component between the feed pipe 2 and the end face of the feed port 24, cooperating with airbag 2 9 to assist in the sealing of the feed port 24. The purpose of the contraction and expansion design of airbag 2 9 is to prevent the airbag 2 9 and other components from directly pressing against the end face of the feed port 24 when the feed pipe 2 is docked with the feed port 24, causing extrusion damage. The gas flow coordination between airbag 1 8 and airbag 2 9 relies on the descending action required by the feed itself to realize the flow and transportation of gas, without the need to set up additional pressure regulating equipment, such as adding components such as air pumps, which can be adjusted automatically, reducing the operating steps of gas pressure regulation and reducing the complexity of control.

[0067] The diameter of the support ring 5 is larger than the inner diameter of the inner ring 11. The support ring 5, the oblique hook 4, and the open connecting rod 6 are located within the protection range of the inner ring 11 to prevent these components from being impacted by bulk materials.

[0068] In this embodiment, the first airbag 8 is provided with an air port, and a cover is provided on the air port. The air port is used to adjust the air pressure retained inside the airbag. Both ends of the air pipe are provided with connectors between the first airbag 8 and the second airbag 9. The detachable connection between the airbags is realized through the connectors, which is convenient for individual replacement.

[0069] Generally, in order to prevent mineral powder, especially powder such as cement, from caking and blocking at the port of the feeding pipe 2, a diversion or dispersion mechanism is usually set at the feeding pipe 2. For this reason, an inner ring 11 is fixed at the lower end of the feeding pipe 2. The inner ring 11 extends into the feeding pipe 2 from the lower port of the feeding pipe 2. The outer wall of the inner ring 11 is attached to the inner wall of the feeding pipe 2. The upper end of the inner ring 11 is chamfered to prevent powder from staying. A distributing fan 14 is rotatably installed on the inner ring 11. As the powder falls, the powder lands on the distributing fan 14, causing an impact and driving the distributing fan 14 to rotate. The fan blades of the distributing fan 14 are used to divide the powder into segments and let it fall, which can not only assist in breaking up the caking but also prevent the falling of the scattered material from being too fast and increasing the impact wear on the hopper 25.

[0070] The distributing fan 14 relies on the impact of the falling of the scattered material as the self-rotation power. When it is empty, that is, when the equipment is stopped, the distributing fan 14 may rotate due to the wind negative pressure at the lower port of the feeding pipe 2. The rotation may cause doubts of the plant inspection personnel about whether the stopped equipment is damaged, resulting in an inspection burden. Therefore, two vertical chutes 12 are symmetrically provided on the inner wall of the inner ring 11. Two sliders 13 are vertically slidably installed in the two chutes 12. The vertical grooves are T-shaped, and the sliders 13 are also T-shaped. The T-shaped structure design can prevent detachment. Through holes are provided in the centers of the two sliders 13, and bearings are embedded in the through holes. Inner rings of the two bearings are sleeved with a rotating shaft 1401, so that the rotating shaft 1401 is rotatably installed on the two bearings. The distributing fan 14 is arranged on the rotating shaft 1401. Both ends of the rotating shaft 1401 extend out of the inner ring of the bearing and penetrate through the slider 13. Polygonal blocks 15 are provided at both ends of the rotating shaft 1401, at least quadrilateral. And polygonal embedding grooves 16 matching the polygonal blocks 15 are provided at the lower part of the two chutes 12 close to the lower end. Plug holes penetrating through the inner ring 11 are provided at the bottom walls of the two chutes 12, and an airbag three 10 is inserted into the plug holes. The airbag three 10 is an extended part provided on the upper end surface of the first airbag 8. The first airbag 8 is communicated with the airbag three 10, and the airbag three 10 is a telescopic airbag.

[0071] When at rest, the second airbag 9 shrinks and folds along with the hopper 25. Under the action of gravity, the two sliders 13 are statically placed at the bottom ends of the chutes 12, the airbag three 10 shrinks, and the polygonal block 15 is embedded in the embedding groove 16. Through the clamping of the polygonal block 15 by the embedding groove 16, the rotating shaft 1401 cannot rotate easily, and the distributing fan 14 also cannot rotate easily.

[0072] When filling, the gas in airbag 1 8 is squeezed into airbag 2 9 and airbag 3 10, and airbag 2 9 is inflated to expand and open the hopper 25; airbag 3 10 is also inflated to push up the slider 13, the two sliders 13 are lifted up, and the polygonal block 15 is separated from the embedded groove 16. At this time, the rotating shaft 1401 is no longer restricted, and the material distribution fan 14 can rotate.

[0073] Preferably, a compression spring 23 is provided between the top wall of the slide groove 12 and the slider 13, and the slider 13 is restricted by the compression spring 23 to prevent the slider 13 from jumping easily. The downward pressure of the compression spring 23 is also utilized to ensure that the polygonal block 15 can maintain a certain stability even if it falls into the embedded groove 16 without being aligned exactly.

[0074] Preferably, the inner wall of the two slide grooves 12 on the opposite side is a sunken inclined surface inclined toward the axis of the mounting ring 3. The polygonal block 15 and the embedded groove 16 are replaced. In this way, when falling under the action of the dead weight, the two ends of the rotating shaft 1401 will be against the inclined surface and be restricted, so that it will not rotate easily. Furthermore, friction sleeves are provided at both ends of the rotating shaft 1401 to enhance the friction resistance and enhance the restrictiveness.

[0075] Preferably, the two sliders 13 extend out of the chute 12 at opposite ends and are provided with a sealing plate 17 , the size of which satisfies that: no matter how the sliders 13 move vertically, the sealing plate 17 always seals the chute 12 , thereby preventing bulk dust from falling into the chute 12 .

[0076] In order to prevent the airbag 8 from being squeezed and broken due to inaccurate control of the descending position of the discharge pipe 2, a limit ring 19 is provided on the inner and outer walls of the installation. The limit ring 19 is conical and has a diameter larger than the outer diameter of the feed inlet 24. When filling and matching, after the airbag 8 is squeezed to a certain extent, the limit ring 19 will abut against the surrounding area of ​​the tanker feed inlet 24, so that the discharge pipe 2 stops descending and prevents the airbag 8 from being squeezed and broken.

[0077] In order to prevent the material distribution fan 14 from being impacted by bulk materials during operation, the original air pressure in the airbag is not enough to support the airbag 3 10 to support the slider 13, so a pressurizing device is also provided. The pressurizing device includes a plurality of pressurizing tanks 20 in a circular array around the axis of the mounting ring 3. In the attached figure, the pressurizing tank 20 is arranged on the limiting ring 19. A plurality of embedded holes are provided around the limiting ring 19, and the pressurizing tank 20 is embedded in the embedded holes for installation, and a mounting plate is also provided on the outer edge surface of the limiting ring 19, and the pressurizing tank 20 is against the mounting plate for auxiliary installation. The pressurizing tank 20 is arranged upside down with the tank mouth facing downward. A piston 21 is embedded in the pressurizing tank 20, and a pressure handle 22 extending out of the pressurizing tank 20 is provided at the lower end of the piston 21, and a spring 18 is provided between the piston 21 and the pressurizing tank 20.

[0078] During filling and alignment, the pressing handle 22 contacts the periphery of the tanker inlet 24 prior to the limiting ring 19. The pressing handle 22 pushes the piston 21 upward, squeezing the air in the pressurized tank 20 into the first airbag 8 and then flowing into the second airbag 9 and the third airbag 10, increasing the air pressure in the airbags to resist the pressure of the material distribution fan 14 falling.

[0079] In this solution, the material discharge pipe 2 includes a fixed material pipe 201 docked with the silo 1 and a movable material pipe 202 driven by a telescopic rod. The telescopic rod can be any one of a hydraulic rod, a pneumatic rod, and an electric telescopic rod. The fixed end of the telescopic rod is arranged on the bracket 26 of the silo 1, and the extending end is connected to the periphery of the movable material pipe 202. The telescopic rod is not shown in the drawings. The upper end of the movable material pipe 202 is provided with a telescopic cover 203 that buckles the fixed material pipe 201, ensuring that the entire filling process is in a sealed environment to prevent dust from overflowing. The port of the fixed material pipe 201 is provided with an openable and closable silo gate 204, and the silo gate 204 is arranged offset from the axis of the movable material pipe 202, so that the bulk material falls onto the blades of the material distribution fan 14 rather than the shaft, enabling the material distribution fan 14 to meet the condition of rotating under impact.

[0080] In this solution, the mounting ring 3 is detachably installed on the movable material pipe 202, allowing the entire external structure of the material discharge pipe 2 to be removed, facilitating disassembly, replacement, and installation.

[0081] The detachable installation of the mounting ring 3 can be achieved by bolt fastening or, as shown in the drawings, by being buckled by a telescopic rod: On both sides of the movable material pipe 202, a first V-shaped rod and a second V-shaped rod are symmetrically and rotatably installed. The ends of the two first V-shaped rods and the two second V-shaped rods are commonly connected to a connecting shaft. A telescopic rod is rotatably installed on the connecting shaft of the two first V-shaped rods, and the extending end of the telescopic rod is rotatably connected to the other connecting shaft. Buckle rings are connected to both connecting shafts by diagonal braces. When the telescopic rod extends, the two connecting rods 6 move away from each other due to the cooperation of the first V-shaped rod and the second V-shaped rod, and the two buckle rings open. At this time, components such as the mounting ring 3 can be installed on the port of the movable material pipe 202. Then, when the telescopic rod contracts, the two buckle rings approach each other, clamping the mounting ring 3 on the port of the movable material pipe 202.

[0082] Preferably, the upper end of the mounting ring 3 is provided with an eaves to abut against the upper end face of the buckle ring and prevent the mounting ring 3 from slipping off.

[0083] In this solution, a negative pressure pipe is connected to the telescopic cover 203. The negative pressure pipe is connected to a pump, the pump is connected to a feeding pipe, and the feeding pipe is connected to a collecting pipe. After the filling reaches the specified amount, the silo gate 204 is closed, the pump is turned on, sucking and collecting the dust. After the pump is turned off, the movable material pipe 202 rises again, and the material discharge pipe 2 is separated from the inlet 24. Directly performing negative pressure suction on the dust and the residual material in the movable material pipe 202 shortens the dust settlement time and improves the filling efficiency.

[0084] In this solution, the silo 1 is fixed on the support 26, which is a gantry structure formed by welding steel materials or fastening with bolts. The vehicle passes under the support 26 to receive materials. The support 26 serves as the installation and support foundation for components such as the silo 1.

[0085] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

[0086] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0087] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. Automatic bulk material filling device, characterized by: include: The automatic positioning system uses visual recognition technology to monitor the vehicle position and tank filling port status in real time to ensure accurate positioning of the feed pipe (2) and the tanker feed port (24); The vehicle guidance system is connected to the automatic positioning system in communication, and includes a voice broadcast system and a display system, which displays the docking status of the material discharge pipe (2) and the material discharge port to the driver in real time; The docking system is connected to the automatic positioning system for communication and drives the unloading pipe (2) to move to the feeding port (24) according to the results of vehicle identification and positioning, thereby achieving unloading docking.

2. The automatic bulk material filling device according to claim 1 is characterized in that: The port of the discharge pipe (2) is provided with a mounting ring (3), the lower end of which is hung with a support ring (5), a plurality of connecting rods (6) are rotatably mounted on the support ring (5), the plurality of connecting rods (6) are driven by an elastic member (7) so that the lower ends tend to converge, the lower end of the mounting ring (3) is provided with an airbag 1 (8), the ends of the plurality of connecting rods (6) are commonly connected with an airbag 2 (9), the airbag 1 (8) is communicated with the airbag 2 (9), the inner ring of the lower end of the mounting ring (3) is sealed with a flexible hopper (25), the lower end of the hopper (25) is sealed with the bottom wall of the airbag 2 (9); the airbag 1 (8) and the airbag 2 (9) are in an unsaturated expansion state.

3. The automatic bulk material filling device according to claim 2 is characterized in that: The lower end of the feeding tube (2) is connected to an inner ring (11) extending into the feeding tube (2), and two vertical slide grooves (12) are symmetrically arranged on the inner wall of the inner ring (11), and sliders (13) are vertically slidably installed in the two slide grooves (12), and a rotating shaft (1401) is installed on the two sliders (13) for common rotation, and a material distribution fan (14) is sleeved on the rotating shaft (1401), and both ends of the rotating shaft (1401) pass through the sliders (13) and are provided with polygonal blocks (15), and an embedded groove (16) cooperating with the polygonal block (15) is provided in the slide groove (12) near the lower end, and the bottom walls of the two slide grooves (12) are provided with a socket penetrating the inner ring (11), and the socket is inserted with an airbag three (10) communicating with the airbag one (8).

4. The automatic bulk material filling device according to any one of claims 2 or 3, characterized in that: A limiting ring (19) is provided on the inner and outer walls of the installation, the limiting ring (19) is conical, and the diameter of the limiting ring (19) is larger than the outer diameter of the feed opening (24).

5. The automatic bulk material filling device according to claim 4 is characterized in that: The invention also comprises a pressurizing device, which comprises a plurality of pressurizing tanks (20) arranged in an annular array around the axis of the mounting ring (3), the pressurizing tanks (20) being arranged upside down, each of the pressurizing tanks (20) being embedded with a piston (21), the lower end of the piston (21) being provided with a pressurizing handle (22) extending out of the pressurizing tank (20), and a spring (18) being provided between the piston (21) and the pressurizing tank (20).

6. The automatic bulk material filling device according to claim 3 is characterized in that: The inner walls of the two slide grooves (12) on the opposite sides are sunken inclined surfaces inclined toward the axis of the mounting ring (3).

7. The automatic bulk material filling device according to claim 3 is characterized in that: The feed pipe (2) comprises a fixed feed pipe (201) connected to the silo (1) and a movable feed pipe (202) driven by a telescopic rod, the upper end of the movable feed pipe (202) is provided with a telescopic cover (203) for buckling the fixed feed pipe (201), and the end of the fixed feed pipe (201) is provided with an openable and closable silo gate (204).

8. The automatic bulk material filling device according to claim 7 is characterized in that: The mounting ring (3) is detachably mounted on the movable material pipe (202).

9. The automatic bulk material filling device according to claim 7, characterized in that: The bin gate (204) and the movable material pipe (202) are arranged with their axes offset.

10. The automatic bulk material filling device according to claim 3 is characterized in that: The caliber of the support ring (5) is larger than the inner diameter of the inner ring (11).

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