An intelligent transportation system for a clay mineral processing workshop

Abstract

The present invention discloses an intelligent transport system for a clay mineral processing workshop, and relates to the technical field of workshop intelligent transport systems, including an AGV trolley and a material box, wherein the AGV trolley is provided with a lifting mechanism for carrying the material box, wherein support seats are symmetrically fixed on both sides of the bottom of the material box, and further comprising: a transport fixing mechanism arranged at the rear end of the AGV trolley, wherein two limit clamping arms are symmetrically arranged in the transport fixing mechanism, and the transport fixing mechanism is connected to the lifting mechanism by transmission. The present invention realizes passive automatic fixing and automatic release of the material box, is easy to operate, and significantly improves work efficiency, and realizes that the two limit clamping arms are rotated into a horizontal state and move toward each other, so that the two limit clamping arms are prevented from interfering with the support seats on the rear side of the material box and the two sides of the bottom of the material box when the AGV trolley places the material box on the ground, so that the AGV trolley can directly drive away when placing the material box 2 on the ground, and at the same time further improves the efficiency of transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent transportation systems in workshops, and particularly to an intelligent transportation system for a clay mineral processing workshop. Background Art

[0002] As is well known, attapulgite has a large specific surface area and adsorption capacity, good rheological properties and catalytic performance. At the same time, it has ideal colloidal properties and heat resistance, and is a rare mineral. It is mainly used in industries such as chemical engineering, pesticides, national defense, medicine, building materials, and light textiles. The process of processing attapulgite into columnar attapulgite mainly includes the steps of: grinding attapulgite to prepare attapulgite powder, treating the obtained attapulgite powder and then granulating it, then screening and sorting the attapulgite particle powder, and then making it into the required shape of attapulgite products. This intelligent transportation system for the clay mineral processing workshop uses AGV cars to carry material boxes to carry and transport between various processes of the attapulgite particle powder.

[0003] For example, in a Chinese patent with the authorization announcement number CN109878406B, the authorization announcement date is April 13, 2021, and the name is "An AGV Car Capable of Adjusting the Size of the Loading Platform". Its specific structure includes a vehicle body, anti-sway wheels, an electric control box, a battery cover, a control panel, a photoelectric sensor, a storage battery, a rotating motor, a collision prevention edge, a drive support frame, universal wheels, and a multi-link drive mechanism. Anti-sway wheels are installed around the top of the vehicle body. An electric control box is installed on one side inside the vehicle body. A control panel is installed at one end of the vehicle body. Photoelectric sensors are installed on both sides of the control panel and inside the vehicle body. A battery cover is installed on the other side of the vehicle body. A storage battery is installed inside the vehicle body and inside the battery cover. A drive support frame is installed at the center inside the vehicle body. A rotating motor is installed above the drive support frame. A multi-link drive mechanism is installed below the drive support frame. Universal wheels are installed around the bottom of the vehicle body. A collision prevention edge is installed below one end of the vehicle body.

[0004] Similar to the above application, currently, when transporting materials by the vehicle frame, intelligent transportation is mostly carried out by AGV cars. However, when using an AGV car to carry a material box to transport the attapulgite particle powder, a fixing mechanism needs to be set to fix the material box when the AGV car carries the material box, to prevent the material box carried on it from shifting and falling during the transportation of the AGV car, which affects the transportation safety. As a result, the fixing mechanism needs to be fixed and loosened every time the material box is loaded and unloaded, which is troublesome to operate and affects the work efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent transportation system for a clay mineral processing workshop to solve the above deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an intelligent transportation system for a clay mineral processing workshop, comprising an AGV trolley and a material box, wherein the AGV trolley is provided with a lifting mechanism for carrying the material box, wherein support seats are symmetrically fixed on both sides of the bottom of the material box, and further comprising:

[0007] A transport and fixation mechanism is arranged at the rear end of the AGV trolley, wherein two limit clamping arms are symmetrically arranged in the transport and fixation mechanism, and the transport and fixation mechanism is transmission-connected with the lifting mechanism;

[0008] When the lifting mechanism carries the material box upward to make the material box leave the ground, it synchronously drives the two limit clamping arms in the carrying and fixing mechanism to move in the opposite direction and rotate to a vertical state so as to relatively clamp the two sides of the rear end of the material box.

[0009] As a further description of the above technical solution: when the lifting mechanism carries the material box and moves it down to place the material box on the ground, it synchronously drives the two limit clamps in the carrying and fixing mechanism to rotate to a horizontal state and move toward each other to avoid the two limit clamps interfering with the separation of the AGV trolley and the material box.

[0010] As a further description of the above technical solution: the lifting mechanism includes a hydraulic telescopic rod installed on the AGV trolley, and a carrying pallet is fixed to the top of the hydraulic telescopic rod.

[0011] As a further description of the above technical solution: the carrying and fixing mechanism includes a base fixed at the rear end of the AGV trolley, an opening is opened on the base, and a two-way threaded adjustment rod is rotatably arranged in the opening, the two limit clamp arms are symmetrically spirally sleeved on the two-way threaded adjustment rod, a lower horizontal abutment plate is fixed at the bottom of the opening, an upper horizontal abutment convex strip is arranged above the opening, an adjustment box is arranged at the middle position of the opening, and an L-shaped gear rack is slidably inserted in the adjustment box, a gear is sleeved at the middle position of the two-way threaded adjustment rod, and the gear is meshed with the L-shaped gear rack, and the top of the L-shaped gear rack is connected to the jacking mechanism.

[0012] As a further description of the above technical solution: the bidirectional threaded adjustment rod is provided with a first adjustment thread and a second adjustment thread on both sides of the gear, respectively. The first adjustment thread and the second adjustment thread have equal pitches and opposite spiral directions.

[0013] As a further description of the above technical solution: an abutment seat is arranged on the front side of the AGV trolley, and a material box limiting frame used in conjunction with the carrying and fixing mechanism is fixed on the top of the abutment seat.

[0014] As a further description of the above technical solution: anti-collision buffer convex strips are fixed around the circumference of the AGV trolley, and the front side of the AGV trolley is connected to a cleaning frame through a connecting frame.

[0015] As a further description of the above technical solution: the limiting clamp arm includes a clamp arm seat, in which a lifting and adjusting mechanism is arranged and connected to a clamp arm frame. When the two limiting clamp arms move in opposite directions, the passively driven lifting and adjusting mechanism drives the clamp arm frame to extend and adjust so that the two clamp arm frames are relatively clamped above the two sides of the rear end of the material box. When the two limiting clamp arms move toward each other, the passively driven lifting and adjusting mechanism drives the clamp arm frame to contract and adjust to shorten the overall length of the limiting clamp arms.

[0016] As a further description of the above technical solution: the lifting and adjusting mechanism includes an adjusting screw and a light rod, the adjusting screw and the light rod are both slidably inserted on the clamp arm seat, and the adjusting screw and the top end of the light rod are connected to the clamp arm frame, a notch is opened on one side of the clamp arm seat, a nut sleeve is rotatably arranged in the notch, and the nut sleeve is spirally sleeved on the adjusting screw.

[0017] As a further description of the above technical solution: the nut sleeve is evenly provided with adjustment convex teeth on its circumferential side, and the lower horizontal abutment plate is provided with an adjustment rack. When the limit clamp arm rotates to a horizontal state, the adjustment rack is meshed with the adjustment convex teeth.

[0018] In the above technical solution, the intelligent transportation system for a clay mineral processing workshop provided by the present invention has the following beneficial effects:

[0019] The intelligent transportation system of the clay mineral processing workshop is provided with a transportation fixing mechanism on the AGV trolley, and the transportation fixing mechanism is connected with the jacking mechanism in a transmission manner, so that when the jacking mechanism lifts the material box, the support seats on both sides of the bottom of the material box are separated from the ground. At this time, the jacking mechanism passively drives the two limit clamps in the transportation fixing mechanism to fix the material box. When the jacking mechanism carries the material box and moves down to place the material box on the ground, the two limit clamps in the transportation fixing mechanism are passively driven to release, so as to passively and automatically fix and automatically release the material box carried by the AGV trolley, which is convenient to operate and significantly improves work efficiency. In addition, when the two limit clamps are passively released on the material box, the two limit clamps are rotated into a horizontal state and move toward each other, so as to avoid the two limit clamps interfering with the support seats on the rear side of the material box and on both sides of the bottom of the material box when the AGV trolley places the material box on the ground, so that the AGV trolley can directly drive away when placing the material box 2 on the ground, that is, the stability of the material box fixation is ensured, and the transportation efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a schematic structural diagram of an intelligent transportation system for a clay mineral processing workshop provided by an embodiment of the present invention;

[0022] Figure 2 This is a rear - view structural diagram of an intelligent transportation system for a clay mineral processing workshop provided by an embodiment of the present invention;

[0023] Figure 3 This is a side view of an intelligent transportation system for a clay mineral processing workshop provided by an embodiment of the present invention;

[0024] Figure 4 This is a schematic structural diagram of a jacking mechanism provided by an embodiment of the present invention;

[0025] Figure 5 This is a schematic structural diagram of a feed box provided by an embodiment of the present invention;

[0026] Figure 6 This is a disassembled structural diagram of a jacking mechanism provided by an embodiment of the present invention;

[0027] Figure 7 This is a schematic structural diagram of a transportation fixing mechanism provided by an embodiment of the present invention;

[0028] Figure 8 This is a structural diagram of the transportation fixing mechanism when it is loosened provided by an embodiment of the present invention;

[0029] Figure 9 This is a schematic installation structure diagram of a limit clamping arm provided by an embodiment of the present invention;

[0030] Figure 10 This is a schematic structural diagram of a limit clamping arm provided by an embodiment of the present invention;

[0031] Figure 11 This is a schematic structural diagram of a carrying pallet provided by an embodiment of the present invention;

[0032] Figure 12 This is a schematic structural diagram of a bottom fixing part provided by an embodiment of the present invention.

[0033] Explanation of reference numerals:

[0034] 1. AGV cart; 11. Anti-collision buffer rib; 12. Cleaning rack; 13. Abuttment seat; 14. Bin limiting rack; 2. Bin; 21. Support seat; 3. Carrier fixing mechanism; 31. Base; 311. Lower horizontal abutment plate; 32. Limiting clamp arm; 320. Lateral limiting part; 321. Clamp arm seat; 322. Notch; 323. Nut sleeve; 324. Adjusting convex tooth; 325. Clamp arm rack; 326. Adjusting screw; 327. Smooth rod; 33. Adjusting box; 34. Bi-directional threaded adjusting rod; 341. First adjusting thread; 342. Second adjusting thread; 343. Gear; 35. Upper horizontal abutment rib; 36. Adjusting rack; 4. Lifting mechanism; 41. Hydraulic telescopic rod; 42. Carrying tray; 43. Bottom fixing part; 431. Negative pressure suction cup; 432. Adjusting cylinder; 433. Piston rod; 44. Cylindrical groove; 5. L-shaped tooth rack. Detailed implementation mode

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below in conjunction with the accompanying drawings.

[0036] Please refer to Figures 1-12 , an embodiment of the present invention provides a technical solution: an intelligent transportation system for a clay mineral processing workshop, including an AGV cart 1 and a bin 2. Among them, the AGV cart 1 is an industrial vehicle that automatically travels along a set route or tow a cargo trolley to a designated location, and then loads and unloads goods automatically or manually. The AGV cart 1 is a prior art, and its specific structure will not be described in detail. A lifting mechanism 4 for carrying the bin 2 is provided on the AGV cart 1. Among them, support seats 21 are symmetrically fixed on both sides of the bottom of the bin 2. The bin 2 is a rectangular box structure with an open top. The bottom of the bin is in an overhead state when placed on the ground through the support seats 21 on both sides of the bottom, so that the AGV cart 1 can directly reverse into the bottom of the bin 2, and then the bin 2 is lifted by the lifting mechanism 4 on the AGV cart 1, so that the support seats 21 on both sides of the bottom of the bin 2 are separated from the ground. At this time, the AGV cart 1 can carry the bin 2 for transportation. It also includes:

[0037] The carrying and fixing mechanism 3 is arranged at the tail end of the AGV cart 1. The carrying and fixing mechanism 3 is used to fix the bin 2 carried on the AGV cart 1. Two limiting clamping arms 32 are symmetrically arranged in the carrying and fixing mechanism 3, and the carrying and fixing mechanism 3 is in transmission connection with the lifting mechanism 4. When the lifting mechanism 4 carries the bin 2 and moves upward so that the bin 2 is separated from the ground. Specifically, when the lifting mechanism 4 lifts and supports the bin 2 so that the support seats 21 on both sides of the bottom of the bin 2 are separated from the ground, at this time, the lifting mechanism 4 passively drives the two limiting clamping arms 32 in the carrying and fixing mechanism 3 to fix the bin 2. The fixing of the bin 2 by the limiting clamping arms 32 includes two movement strokes: in the first movement stroke, the two limiting clamping arms 32 move in opposite directions and open, so that the two limiting clamping arms 32 are respectively corresponding to both sides of the bin 2. In the second movement stroke, the two limiting clamping arms 32 rotate to a vertical state to relatively clamp on both sides of the tail end of the bin 2. Among them, a lateral limiting portion 320 is integrally formed at the top end of the limiting clamping arm 32. When the two limiting clamping arms 32 relatively clamp on both sides of the tail end of the bin 2, at this time, the limiting clamping arms 32 abut against the tail end of the bin 2, and the lateral limiting portion 320 is stuck on the side of the bin 2. When the lifting mechanism 4 carries the bin 2 and moves downward to place the bin 2 on the ground, the two limiting clamping arms 32 in the carrying and fixing mechanism 3 are passively driven to loosen. The loosening of the limiting clamping arms 32 includes two movement strokes. In the first movement stroke, the two limiting clamping arms 32 rotate to a horizontal state. In the second movement stroke, the two limiting clamping arms 32 move towards each other, so that the two limiting clamping arms 32 contract between the two support seats 21 at the bottom of the bin 2. That is, when the lifting mechanism 4 carries the bin 2 and moves downward to place the bin 2 on the ground, the AGV cart 1 can directly drive away, avoiding interference between the two limiting clamping arms 32 and the two support seats 21 at the bottom of the bin 2 when the AGV cart 1 drives away.

[0038] This embodiment provides an intelligent carrying system for a clay mineral processing workshop. By arranging a carrying and fixing mechanism 3 on the AGV cart 1, and the carrying and fixing mechanism 3 is in transmission connection with the lifting mechanism 4, it is realized that when the lifting mechanism 4 lifts and supports the bin 2 so that the support seats 21 on both sides of the bottom of the bin 2 are separated from the ground, at this time, the lifting mechanism 4 passively drives the two limiting clamping arms 32 in the carrying and fixing mechanism 3 to fix the bin 2. When the lifting mechanism 4 carries the bin 2 and moves downward to place the bin 2 on the ground, the two limiting clamping arms 32 in the carrying and fixing mechanism 3 are passively driven to loosen, realizing passive automatic fixing and automatic loosening of the bin carried by the AGV cart 1, which is convenient to operate, significantly improves work efficiency, and when setting the two limiting clamping arms 32 to be passively loosened for the bin 2, it is realized that the two limiting clamping arms 32 rotate to a horizontal state and move towards each other, avoiding interference between the two limiting clamping arms 32 and the rear side of the bin 2 and the two support seats 21 on both sides of the bottom of the bin 2 when the AGV cart 1 places the bin 2 on the ground, so that the AGV cart 1 can directly drive away when placing the bin 2 on the ground, that is, ensuring the stability of fixing the bin 2 and further improving the transportation efficiency.

[0039] In another embodiment provided by the present invention, the jacking mechanism 4 includes a hydraulic telescopic rod 41 installed on the AGV cart 1, and a carrying pallet 42 is fixed to the top end of the hydraulic telescopic rod 41. Optionally, four hydraulic telescopic rods 41 are provided. The four hydraulic telescopic rods 41 are installed on the AGV cart 1 in a rectangular array. The carrying pallet 42 is horizontally fixed to the top ends of the four hydraulic telescopic rods 41. The jacking mechanism 4 lifts and supports the material box 2 by driving the carrying pallet 42 to rise through the four hydraulic telescopic rods 41, and the bottom of the material box 2 is supported by the carrying pallet 42 and the material box 2 is driven to rise.

[0040] In another embodiment provided by the present invention, the carrying and fixing mechanism 3 includes a base 31 fixed to the tail end of the AGV cart 1. An opening is formed in the base 31, and a bidirectional threaded adjusting rod 34 is rotatably arranged in the opening. Two limiting clamping arms 32 are symmetrically and helically sleeved on the bidirectional threaded adjusting rod 34. A lower horizontal abutting plate 311 is fixed to the bottom of the opening. When the limiting clamping arms 32 rotate to a horizontal state, their bottoms are attached to the surface of the lower horizontal abutting plate 311. An upper horizontal abutting rib 35 is arranged above the opening. When the limiting clamping arms 32 rotate to a horizontal state, the tops of their tails are attached to the bottom surface of the upper horizontal abutting rib 35. An adjusting box 33 is arranged at the middle position of the opening, and an L-shaped tooth rack 5 is slidably inserted into the adjusting box 33. A gear 343 is fixedly sleeved at the middle position of the bidirectional threaded adjusting rod 34, and the gear 343 meshes with the L-shaped tooth rack 5. The top end of the L-shaped tooth rack 5 is connected to the jacking mechanism 4. First adjusting threads 341 and second adjusting threads 342 are respectively arranged on both sides of the gear 343 on the bidirectional threaded adjusting rod 34. The pitches of the first adjusting threads 341 and the second adjusting threads 342 are equal and the helical directions are opposite.

[0041] In the initial state, the two limiting clamping arms 32 are in a horizontal state and close to the middle position of the bidirectional threaded adjusting rod 34. When the lifting mechanism 4 moves upward, it drives the gear 343 to rotate through the L-shaped tooth rack 5. The driving gear 343 drives the bidirectional threaded adjusting rod 34 to rotate. Since the top of the tail end of the limiting clamping arm 32 abuts against the bottom surface of the upper horizontal abutting rib 35 to limit the rotation of the limiting clamping arm 32, at this time, the bidirectional threaded adjusting rod 34 synchronously drives the two limiting clamping arms 32 to linearly move in opposite directions through the first adjusting thread 341 and the second adjusting thread 342 thereon until the tail end of the limiting clamping arm 32 separates from the upper horizontal abutting rib 35. At this time, the bidirectional threaded adjusting rod 34 drives the two limiting clamping arms 32 to rotate synchronously into a vertical state, so that the two limiting clamping arms 32 are relatively clamped on both sides of the tail end of the material box 2. When the lifting mechanism 4 moves downward, it drives the bidirectional threaded adjusting rod 34 to rotate in the opposite direction through the L-shaped tooth rack 5 and the gear 343. At this time, the bidirectional threaded adjusting rod 34 drives the two limiting clamping arms 32 to rotate synchronously into a horizontal state. At this time, since the bottoms of the two limiting clamping arms 32 abut against the surface of the lower horizontal abutting plate 311, at this time, the bidirectional threaded adjusting rod 34 synchronously drives the two limiting clamping arms 32 to linearly move towards each other until they are reset to the initial state.

[0042] In another embodiment provided by the present invention, a butt joint seat 13 is arranged on the front side of the AGV cart 1, and a material box limiting frame 14 for cooperating with the carrying and fixing mechanism 3 is fixed on the top of the butt joint seat 13. The material box limiting frame 14 on the front side of the AGV cart 1 and the carrying and fixing mechanism 3 on the rear side of the AGV cart 1 cooperate with each other to fix the material box 2, further improving the stability of fixing and limiting the material box 2.

[0043] An anti-collision buffer rib 11 is wound and fixed around the circumference of the AGV cart 1, and a cleaning frame 12 is connected to the front side of the AGV cart 1 through a connecting frame. The anti-collision buffer rib 11 realizes buffer protection for accidental collisions of the AGV cart 1, and the cleaning frame 12 realizes cleaning of the surface of the road surface where the AGV cart 1 moves, improving the transportation stability of the AGV cart 1.

[0044] In another embodiment provided by the present invention, the limiting clamping arm 32 includes a clamping arm seat 321, and a lifting adjustment mechanism is arranged in the clamping arm seat 321 and connected to a clamping arm frame 325. When the two limiting clamping arms 32 move in opposite directions, the passive driving lifting adjustment mechanism drives the clamping arm frame 325 to protrude and adjust so that the two clamping arm frames 325 are relatively clamped above both sides of the tail end of the material box. When the two limiting clamping arms 32 move towards each other, the passive driving lifting adjustment mechanism drives the clamping arm frame 325 to contract and adjust to shorten the overall length of the limiting clamping arm 32.

[0045] The carrier fixing mechanism 3 is installed at the tail end of the AGV cart 1, and the limit clamping arms 32 on the carrier fixing mechanism 3 are rotated to fix the bin 2 carried on the AGV cart 1. When the length of the limit clamping arms 32 is short, it can only fix the two sides at the bottom of the tail end of the bin 2, and the fixing stability is poor. When the length of the limit clamping arms 32 is set longer, although the fixing stability is improved, when the limit clamping arms 32 are released and the two limit clamping arms 32 are rotated to a horizontal state, the length of the AGV cart 1 will be increased, occupying a large space during movement and making it inconvenient to turn;

[0046] By setting the limit clamping arms 32 to have a clamping arm seat 321 and an elevating adjustment mechanism to install the clamping arm frame 325, and the elevating adjustment mechanism realizes passive automatic driving of the clamping arm frame 325 for lifting and adjusting. That is, when the two limit clamping arms 32 move in opposite directions and open during the first movement stroke of fixing the bin 2 by the limit clamping arms 32, the passive driving elevating adjustment mechanism drives the clamping arm frame 325 to protrude and adjust so that the two clamping arm frames 325 are relatively clamped above the two sides of the tail end of the bin, improving the fixing stability of the bin 2. At the same time, during the second movement stroke when the limit clamping arms 32 release the bin 2 and the two limit clamping arms 32 move towards each other, the passive driving elevating adjustment mechanism drives the clamping arm frame 325 to contract and adjust, shortening the overall length of the limit clamping arms 32, reducing the length of the large AGV cart 1, and making it more convenient for the AGV cart 1 to move and turn.

[0047] In another embodiment provided by the present invention, the elevating adjustment mechanism includes an adjustment screw 326 and a smooth rod 327. The adjustment screw 326 and the smooth rod 327 are both slidably inserted into the clamping arm seat 321, and the tops of the adjustment screw 326 and the smooth rod 327 are connected to the clamping arm frame 325. A notch 322 is opened on one side of the clamping arm seat 321, a nut sleeve 323 is rotatably arranged in the notch 322, and the nut sleeve 323 is spirally sleeved on the adjustment screw 326. Adjustment convex teeth 324 are evenly distributed on the circumferential side of the nut sleeve 323, and an adjustment rack 36 is arranged on the lower horizontal abutting plate 311. When the limit clamping arms 32 are rotated to a horizontal state, the adjustment rack 36 meshes with the adjustment convex teeth 324.

[0048] When the two limit clamping arms 32 move towards each other, at this time, the adjustment rack 36 drives the nut sleeve 323 to rotate through the adjustment convex teeth 324, and the nut sleeve 323 drives the adjustment screw 326 to move towards one side of the clamping arm seat 321, thereby driving the clamping arm frame 325 to move towards one side of the clamping arm seat 321, shortening the overall length of the limit clamping arms 32, reducing the length of the large AGV cart 1, and making it more convenient for the AGV cart 1 to move and turn. When the two limit clamping arms 32 move in opposite directions, similarly, the clamping arm frame 325 is driven to protrude and adjust, extending the overall length of the limit clamping arms 32 so that the two clamping arm frames 325 are relatively clamped above the two sides of the tail end of the bin, improving the fixing stability of the bin 2.

[0049] In another embodiment provided by the present invention, a bottom fixing member 43 is provided on the lifting mechanism 4, and the bottom fixing member 43 is assembled such that when the lifting mechanism 4 lifts and supports the material box 2, the bottom fixing member 43 passively fixes the bottom of the material box 2. When the lifting mechanism 4 places the material box 2 on the ground, the bottom fixing member 43 is passively unlocked from the material box 2. The bottom fixing member 43 includes a negative pressure suction cup 431 embedded and installed on the surface of the carrying pallet 42 and an adjusting cylinder 432. A cylindrical groove 44 for cooperating with the adjusting cylinder 432 is formed on the AGV cart 1. The adjusting cylinder 432 is fixed to the bottom of the carrying pallet 42 and communicates with the negative pressure suction cup 431. A piston rod 433 is embedded in the adjusting cylinder 432, and the bottom end of the piston rod 433 is connected to the bottom of the cylindrical groove 44. When the lifting mechanism 4 lifts and supports the material box 2, at this time, the carrying pallet 42 moves upward. Since the bottom end of the piston rod 433 is connected to the bottom of the cylindrical groove 44 and the adjusting cylinder 432 is fixed to the bottom of the carrying pallet 42, at this time, the piston rod 433 moves downward to cooperate with the adjusting cylinder 432 to evacuate the negative pressure suction cup 431, so that the negative pressure suction cup 431 negatively adsorbs and fixes the bottom of the material box 2. When the lifting mechanism 4 places the material box 2 on the ground, the carrying pallet 42 moves downward, and the adjusting cylinder 432 supplies air to the negative pressure suction cup 431, so that the negative pressure suction cup 431 releases the negative pressure lock.

[0050] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent transportation system for a clay mineral processing workshop, comprising an AGV cart (1) and a material box (2), wherein a lifting mechanism (4) for carrying the material box (2) is arranged on the AGV cart (1), and among them, Support seats (21) are symmetrically fixed on both sides of the bottom of the material box (2), characterized in that the material box (2) is a rectangular box structure with an open top, and the support seats (21) are provided on both sides of the bottom so that the bottom of the material box is in an overhead state when placed on the ground, and further comprising: A transport fixing mechanism (3) is arranged at the rear end of the AGV trolley (1), wherein two limit clamping arms (32) are symmetrically arranged in the transport fixing mechanism (3), and the transport fixing mechanism is transmission-connected to the lifting mechanism (4); When the lifting mechanism (4) carries the material box (2) upward to lift the material box (2) off the ground, it synchronously drives the two limit clamping arms (32) in the carrying and fixing mechanism (3) to move in the opposite direction and rotate to a vertical state so as to be relatively clamped on both sides of the rear end of the material box. The top of the limit clamping arms (32) is integrally formed with a lateral limit portion (320). The two limit clamping arms (32) are relatively clamped on both sides of the rear end of the material box (2). At this time, the limit clamping arms (32) are in contact with the rear end of the material box (2), and the lateral limit portion (320) is stuck on the side of the material box (2). When the lifting mechanism (4) carries the material box (2) and moves downward to place the material box (2) on the ground, it synchronously drives the two limit clamping arms (32) in the carrying and fixing mechanism (3) to rotate into a horizontal state and move towards each other, so as to avoid the two limit clamping arms (32) interfering with the separation of the AGV trolley (1) and the material box (2); The carrying and fixing mechanism (3) comprises a base (31) fixed to the rear end of the AGV trolley (1), the base (31) is provided with an opening, and a bidirectional threaded adjustment rod (34) is rotatably arranged in the opening, the two limit clamp arms (32) are symmetrically spirally sleeved on the bidirectional threaded adjustment rod (34), a lower horizontal abutment plate (311) is fixed to the bottom of the opening, an upper horizontal abutment convex strip (35) is arranged above the opening, an adjustment box (33) is arranged at the middle section of the opening, and an L-shaped gear rack (5) is slidably inserted in the adjustment box (33), a gear (343) is sleeved at the middle section of the bidirectional threaded adjustment rod (34), and the gear (343) is meshed with the L-shaped gear rack (5), and the top end of the L-shaped gear rack (5) is connected to the lifting mechanism (4); On both sides of the gear (343) on the bidirectional threaded adjusting rod (34), a first adjusting thread (341) and a second adjusting thread (342) are respectively arranged. The pitches of the first adjusting thread (341) and the second adjusting thread (342) are equal, and the spiral directions are opposite. In the initial state, the two limiting clamping arms (32) are in a horizontal state and close to the middle position of the bidirectional threaded adjusting rod (34). When the jacking mechanism (4) moves upward, it drives the gear (343) to rotate through the L-shaped tooth rack (5). The driving gear (343) drives the bidirectional threaded adjusting rod (34) to rotate. Since the top of the tail end of the limiting clamping arm (32) is attached to the bottom surface of the upper horizontal abutting rib (35) to limit the rotation of the limiting clamping arm (32), at this time, the bidirectional threaded adjusting rod (34) synchronously drives the two limiting clamping arms (32) to move linearly in opposite directions through the first adjusting thread (341) and the second adjusting thread (342) thereon until the tail end of the limiting clamping arm (32) is separated from the upper horizontal abutting rib (35). At this time, the bidirectional threaded adjusting rod (34) drives the two limiting clamping arms (32) to rotate synchronously into a vertical state, so that the two limiting clamping arms (32) relatively clamp on both sides of the tail end of the material box (2). When the jacking mechanism (4) moves downward, it drives the bidirectional threaded adjusting rod (34) to rotate in the reverse direction through the L-shaped tooth rack (5) and the gear (343). At this time, the bidirectional threaded adjusting rod (34) drives the two limiting clamping arms (32) to rotate synchronously into a horizontal state. At this time, since the bottoms of the two limiting clamping arms (32) are attached to the surface of the lower horizontal abutting plate (311), at this time, the bidirectional threaded adjusting rod (34) synchronously drives the two limiting clamping arms (32) to move linearly towards each other until they are reset to the initial state through the first adjusting thread (341) and the second adjusting thread (342) thereon. Abutting seats (13) are arranged on the front side of the AGV cart (1), and a material box limiting frame (14) for cooperating with the carrying and fixing mechanism (3) is fixed on the top of the abutting seats (13).

2. The intelligent transportation system for a clay mineral processing workshop according to claim 1, characterized in that, The jacking mechanism (4) includes a hydraulic telescopic rod (41) installed on the AGV cart (1), and a carrying tray (42) is fixed at the top end of the hydraulic telescopic rod (41).

3. The intelligent transportation system for a clay mineral processing workshop according to claim 1, characterized in that, Anti-collision and buffer ribs are wound and fixed around the circumference of the AGV cart (1), and a cleaning frame (12) is connected to the front side of the AGV cart (1) through a connecting frame.

4. The intelligent transport system for a clay mineral processing workshop according to claim 1, wherein, The limiting clamping arm (32) includes a clamping arm seat (321). An elevating and adjusting mechanism is arranged in the clamping arm seat (321) and is connected to a clamping arm frame (325). When the two limiting clamping arms (32) move in opposite directions, the elevating and adjusting mechanism is driven passively to drive the clamping arm frame (325) to protrude and adjust so that the two clamping arm frames (325) relatively clamp above both sides of the tail end of the material box. When the two limiting clamping arms (32) move towards each other, the elevating and adjusting mechanism is driven passively to drive the clamping arm frame (325) to contract and adjust to shorten the overall length of the limiting clamping arm (32).

5. The intelligent transportation system for a clay mineral processing workshop according to claim 4, characterized in that, The lifting and adjusting mechanism includes an adjusting screw rod (326) and a smooth rod (327). The adjusting screw rod (326) and the smooth rod (327) are both slidably inserted into the clamp arm seat (321), and the tops of the adjusting screw rod (326) and the smooth rod (327) are connected to the clamp arm frame (325). A notch (322) is formed on one side of the clamp arm seat (321), a nut sleeve (323) is rotatably arranged in the notch (322), and the nut sleeve (323) is spirally sleeved on the adjusting screw rod (326).

6. The intelligent transportation system for a clay mineral processing workshop according to claim 5, characterized in that, Adjusting convex teeth (324) are evenly distributed on the circumferential side of the nut sleeve (323), and an adjusting rack (36) is arranged on the lower horizontal abutting plate (311). When the limit clamp arm (32) rotates to a horizontal state, the adjusting rack (36) meshes with the adjusting convex teeth (324).

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