Warehousing auxiliary transportation device for agricultural products and control method

Abstract

The invention discloses a warehousing auxiliary transportation device for agricultural products and a control method, and relates to the technical field of agricultural product auxiliary transportation devices. The auxiliary loading and unloading mechanism comprises two mounting blocks which are symmetrically and fixedly connected to the upper end of the conveyor, the side walls, close to each other, of the two mounting blocks are jointly and rotationally connected with a rotating shaft, the side wall of the rotating shaft is symmetrically and fixedly connected with two loading and unloading rods, and the side walls, close to each other, of the two loading and unloading rods are jointly and rotationally connected with a mounting rod; and the side wall of the mounting rod is fixedly connected with a mounting plate. Compared with an existing common mechanical arm, the device can freely adjust the unloading angle according to the size of an agricultural product packaging box, so that the agricultural product packaging box and agricultural products are effectively protected, the reliability is higher, and compared with an existing intelligent mechanical arm, an intelligent recognition system is replaced with a simple mechanical linkage structure, and the labor intensity of workers is lowered. Therefore, the device is more suitable for being applied to ordinary small and medium-sized enterprises.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary transportation devices for agricultural products, and in particular to an auxiliary transportation device for warehousing agricultural products and a control method thereof. Background Art

[0002] Agricultural products are items produced in agriculture, such as sorghum, rice, peanuts, corn, wheat, and local specialties of various regions. Primary agricultural products refer to plants, animals and their products obtained from agricultural activities, excluding various processed products.

[0003] Existing agricultural products are usually packaged in boxes for transportation and then transported to designated locations for storage. When entering the warehouse, conveyors are used in conjunction with robotic arms to grab and transport the agricultural products. Existing robotic arms are divided into two types, ordinary robotic arms and intelligent robotic arms. Ordinary robotic arms can only perform directional grabbing and placing down, and cannot intelligently identify the size of the agricultural product packaging boxes to be grabbed, and then automatically adjust the grabbing and placing down angles according to the size of the agricultural product packaging boxes. Therefore, directional grabbing may cause squeezing and damage to the agricultural product packaging boxes of different sizes, and the reliability is low. As for intelligent robotic arms, although they can automatically adjust the grabbing and placing down angles according to the size of the agricultural product packaging boxes, intelligent robotic arms are expensive and cannot be widely used in ordinary small and medium-sized enterprises.

[0004] Based on this, we propose an auxiliary transportation device and control method for warehousing of agricultural products. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an auxiliary transportation device for agricultural products entering the warehouse and a control method.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An auxiliary transport device for warehousing agricultural products, comprising a conveyor;

[0008] An auxiliary loading and unloading mechanism, comprising two mounting blocks symmetrically fixedly connected to the upper end of the conveyor, wherein the side walls of the two mounting blocks close to each other are connected to a rotating shaft in a common rotation, and the side walls of the rotating shaft are symmetrically fixedly connected to two loading and unloading rods, and the side walls of the two loading and unloading rods close to each other are connected to a mounting rod in a common rotation, and the side walls of the mounting rods are fixedly connected to a mounting plate, and the lower end of the mounting plate is fixedly connected to a plurality of electric suction cups;

[0009] A driving mechanism is mounted on the mounting block, and the driving mechanism includes a U-shaped frame;

[0010] A protective mechanism is installed on the U-shaped frame, and the protective mechanism includes a slide fixedly connected to the side wall of the U-shaped frame, and a sealing plate is sealed and fixedly connected to the inner wall of the slide, and the sealing plate divides the interior of the slide into two parts: a driving chamber and a pneumatic chamber. The inner wall of the driving chamber is sealed and slidably connected to a first slide, and the side wall of the first slide is fixedly connected to a push rod, and the other end of the push rod is arranged through the side wall of the slide and the inner wall of the U-shaped frame.

[0011] Preferably, the auxiliary loading and unloading mechanism also includes a vertical plate fixedly connected to the upper end of the conveyor, the side wall of the vertical plate is rotatably connected to a rotating rod, the side wall of the rotating rod is fixedly connected to a limiting block, one end of the mounting rod passes through the side wall of the loading and unloading rod and is fixedly connected to a rectangular block, the upper end of the rectangular block is fixedly connected to the limiting rod, and the side wall of the limiting rod is slidably connected to the limiting block.

[0012] Preferably, the driving mechanism includes a U-shaped frame fixedly connected to the side wall of the mounting block, one end of the rotating shaft passes through the side wall of the mounting block and is fixedly connected to a spline shaft, the sliding sleeve of the side wall of the spline shaft is provided with a spline sleeve, and the side wall of the spline sleeve is symmetrically fixedly connected to two first bevel gears, the inner wall of the U-shaped frame is rotatably connected to the output shaft, the side wall of the output shaft is fixedly connected to the second bevel gear, the side wall of the U-shaped frame is fixedly connected to the motor, and the output end of the motor passes through the side wall of the U-shaped frame and is fixedly connected to the output shaft.

[0013] Preferably, the driving mechanism also includes two transmission shafts symmetrically connected to the inner wall of the U-shaped frame, the side walls of the two transmission shafts are fixedly connected to the first gear, the side wall of the output shaft is fixedly connected to the fourth gear, the fourth gear is meshed with the two first gears, and one end of the two transmission shafts is fixedly connected to a cam, and the side wall of the cam slides against the side wall of the spline sleeve.

[0014] Preferably, the side walls of the two mounting blocks are commonly fixedly connected to a mounting frame, the top of the mounting frame is rotatably connected to a support tube, the inner wall of the support tube is sealingly and slidingly connected to a sliding plug, the side wall of the sliding plug is fixedly connected to a reinforcing rod, and the side walls of the two loading and unloading rods close to each other are commonly fixedly connected to a fixing rod, and one end of the reinforcing rod passes through the side wall of the support tube and is rotatably connected to the fixing rod.

[0015] Preferably, the protective mechanism also includes a second slide plate sealingly and slidingly connected to the inner wall of the pneumatic cavity, the pneumatic cavity is filled with a non-Newtonian fluid, the support tube is connected to the pneumatic cavity through a connecting pipe, and a connecting hole is opened on the side wall of the sealing plate, and a pressure relief valve is installed on the inner wall of the connecting hole.

[0016] Preferably, a pressure relief hole and a one-way air inlet hole are provided on the inner wall of the pneumatic cavity, and a pressure relief valve is installed on the inner wall of the pressure relief hole.

[0017] Preferably, the conveyor is equipped with an anti-falling mechanism, which includes a mounting seat fixedly connected to the upper end of the conveyor, a slide groove is provided on the top of the mounting seat, and two center plates are symmetrically slidably connected to the inner wall of the slide groove.

[0018] Preferably, the anti-fall mechanism also includes a bidirectional screw rotatably connected to the inner wall of the slide groove, the side walls of the bidirectional screw are respectively threadedly connected to the two center plates, one end of the rotating rod passes through the side wall of the vertical plate and is fixedly connected to the second gear, one end of the bidirectional screw passes through the side wall of the mounting seat and is fixedly connected to the third gear, and the second gear is meshed with the third gear.

[0019] A method for controlling the storage of agricultural products, comprising the following steps:

[0020] S1. Trucks loaded with agricultural products drive to the conveyor at the warehouse entrance and wait for unloading;

[0021] S2. Start the motor to rotate the electric suction cup to the rear of the truck to suck up the agricultural product packaging boxes in the truck compartment, and then place the agricultural product packaging boxes on the conveyor for transportation into the warehouse;

[0022] S3. During the conveying process, when placing the agricultural product packaging box on the conveyor, the electric suction cup will automatically adjust the downward swing angle according to the height of the packaging box to avoid crushing the agricultural products. In addition, the two centering plates will move relative to each other to push the agricultural product packaging box on the conveyor to the center position to prevent it from falling during transportation;

[0023] S4. After the agricultural products are put into storage, the truck will leave and the conveyor will be moved to its original position.

[0024] The present invention has the following beneficial effects:

[0025] 1. By setting up auxiliary loading and unloading mechanisms, driving mechanisms and protective mechanisms, compared with existing ordinary robotic arms, this device can freely adjust the unloading angle according to the size of the agricultural product packaging box, thereby effectively protecting the agricultural product packaging box and agricultural products, and has higher reliability. Compared with existing intelligent robotic arms, it only uses a simple mechanical linkage structure to replace the intelligent recognition system, which greatly reduces the cost of the product, making it more suitable for ordinary small and medium-sized enterprises.

[0026] 2. By setting up the mounting frame, support tube, reinforcement rod and fixing rod, the support tube and reinforcement rod can share the pressure applied to the loading and unloading rod, thereby achieving the effect of enhancing the overall structural strength and thus improving stability

[0027] 3. By setting up an anti-fall mechanism, during the loading and unloading process, the limit rod will drive the limit block to rotate alternately forward and reverse, and then drive the rotating rod to rotate alternately forward and reverse, thereby driving the second gear to rotate forward and reverse, driving the third gear to rotate forward and reverse, and thus driving the bidirectional lead screw to rotate alternately forward and reverse, so that the two center plates move closer to and away from each other, thereby pushing the packaging boxes containing agricultural products placed on the conveyor to the center position of the conveyor, avoiding the packaging boxes being placed at the edge of the conveyor, increasing the risk of them falling during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of an auxiliary transport device for warehousing agricultural products proposed by the present invention;

[0029] Figure 2 for Figure 1 A schematic side view of the mid-structure;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 4 for Figure 3 A schematic cross-sectional view of the middle slide;

[0032] Figure 5 for Figure 2 A schematic cross-sectional view of the middle mounting seat;

[0033] Figure 6 for Figure 1 A schematic diagram of the structure enlargement at point A;

[0034] Figure 7 for Figure 1 A magnified schematic diagram of the structure at point B in FIG;

[0035] Figure 8 for Figure 3 Schematic diagram of the enlarged structure at point C in FIG.

[0036] In the figure: 1. Conveyor; 2. Mounting block; 3. Rotating shaft; 4. Loading and unloading rod; 5. Mounting rod; 6. Mounting plate; 7. Electric suction cup; 8. Vertical plate; 9. Rotating rod; 10. Limit block; 11. Limit rod; 12. Rectangular block; 13. U-shaped frame; 14. Spline shaft; 15. Spline sleeve; 16. First bevel gear; 17. Output shaft; 18. Motor; 19. Drive shaft; 20. First gear; 21. Mounting frame; 22. Support cylinder; 23. Sliding plug; 24. Add Strong rod; 25. Fixed rod; 26. Slide; 27. Sealing plate; 271. Drive chamber; 272. Pneumatic chamber; 28. First slide; 29. ​​Push rod; 30. Second slide; 31. Connecting pipe; 32. Pressure relief hole; 33. One-way air inlet hole; 34. Connecting hole; 35. Mounting seat; 36. Slide; 37. Centering plate; 38. Bidirectional screw; 39. Second gear; 40. Third gear; 41. Second bevel gear; 42. Fourth gear; 43. Cam. DETAILED DESCRIPTION

[0037] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Reference Figure 1 - Figure 8 , an auxiliary transport device for storage of agricultural products, comprising a conveyor 1;

[0039] The auxiliary loading and unloading mechanism includes two mounting blocks 2 symmetrically fixedly connected to the upper end of the conveyor 1. The side walls of the two mounting blocks 2 close to each other are connected to a rotating shaft 3 for common rotation. The side walls of the rotating shaft 3 are symmetrically fixedly connected to two loading and unloading rods 4. The side walls of the two loading and unloading rods 4 close to each other are connected to a mounting rod 5 for common rotation. The side walls of the mounting rods 5 are fixedly connected to a mounting plate 6. The lower end of the mounting plate 6 is fixedly connected to a plurality of electric suction cups 7.

[0040] A driving mechanism is mounted on the mounting block 2, and the driving mechanism includes a U-shaped frame 13;

[0041] A protective mechanism is installed on the U-shaped frame 13, which includes a slide 26 fixedly connected to the side wall of the U-shaped frame 13. The inner wall of the slide 26 is sealed and fixedly connected with a sealing plate 27. The sealing plate 27 divides the interior of the slide 26 into two parts: a driving chamber 271 and a pneumatic chamber 272. The inner wall of the driving chamber 271 is sealed and slidably connected with a first slide 28. The side wall of the first slide 28 is fixedly connected with a push rod 29. The other end of the push rod 29 passes through the side wall of the slide 26 and the inner wall of the U-shaped frame 13.

[0042] The auxiliary loading and unloading mechanism also includes a vertical plate 8 fixedly connected to the upper end of the conveyor 1, the side wall of the vertical plate 8 is rotatably connected to a rotating rod 9, the side wall of the rotating rod 9 is fixedly connected to a limiting block 10, one end of the mounting rod 5 passes through the side wall of the loading and unloading rod 4 and is fixedly connected to a rectangular block 12, the upper end of the rectangular block 12 is fixedly connected to a limiting rod 11, and the side wall of the limiting rod 11 is slidably connected to the limiting block 10.

[0043] The driving mechanism includes a U-shaped frame 13 fixedly connected to the side wall of the mounting block 2, one end of the rotating shaft 3 passes through the side wall of the mounting block 2 and is fixedly connected to a spline shaft 14, a sliding sleeve on the side wall of the spline shaft 14 is provided with a spline sleeve 15, and two first bevel gears 16 are symmetrically fixedly connected to the side wall of the spline sleeve 15. The inner wall of the U-shaped frame 13 is rotatably connected to the output shaft 17, and the side wall of the output shaft 17 is fixedly connected to the second bevel gear 41. The side wall of the U-shaped frame 13 is fixedly connected to the motor 18, and the output end of the motor 18 passes through the side wall of the U-shaped frame 13 and is fixedly connected to the output shaft 17.

[0044] The drive mechanism also includes two transmission shafts 19 symmetrically connected to the inner wall of the U-shaped frame 13, the side walls of the two transmission shafts 19 are fixedly connected to the first gear 20, the side wall of the output shaft 17 is fixedly connected to the fourth gear 42, the fourth gear 42 is meshed with the two first gears 20, and one end of the two transmission shafts 19 is fixedly connected to a cam 43, and the side wall of the cam 43 slides against the side wall of the spline sleeve 15.

[0045] Furthermore, the truck loaded with agricultural products is driven to the warehouse so that the rear end of the truck compartment is on the side of the conveyor 1 close to the electric suction cup 7, and then the motor 18 is started to drive the output shaft 17 to rotate. Initially, the first bevel gear 16 on the right side is meshed with the second bevel gear 41 (as shown in the attached figure). Figure 7 As shown), the output shaft 17 will drive the second bevel gear 41 to rotate, and then drive the first bevel gear 16 meshing with it to rotate, drive the spline sleeve 15 to rotate forward, and then drive the spline shaft 14 to rotate forward, thereby driving the rotating shaft 3 to rotate forward, and driving the loading and unloading rod 4 to rotate counterclockwise (as shown). Figure 3As shown), the mounting rod 5 is driven to rotate, and the electric suction cup 7 is driven to revolve around the center of the rotating shaft 3 and move to the top of the carriage. When the loading and unloading rod 4 is rotated counterclockwise, the rotating rod 9 is driven to rotate 90 degrees counterclockwise through the rectangular block 12 and the limiting rod 11. At this time, the limiting rod 11 will slide on the side wall of the limiting block 10, and due to the limitation of the limiting rod 11, the mounting rod 5 will rotate 90 degrees counterclockwise, thereby driving multiple electric suction cups 7 to rotate 90 degrees. Therefore, when the electric suction cup 7 rotates to the top of the carriage, it will adsorb the packaging box containing agricultural products in the carriage. When the output shaft 17 rotates, it will synchronously drive the fourth gear 42 to rotate, thereby driving the two first gears 20 to rotate, driving the two transmission shafts 19 to rotate in the same direction, and then driving the two cams 43 to rotate synchronously. At this time, the cam 43 on the left will squeeze the spline sleeve 15, causing the spline sleeve 15 to slide to the right (as shown). Figure 7 As shown), the first bevel gear 16 on the left side will move to mesh with the second bevel gear 41, while the first bevel gear 16 on the right side will be disengaged. Since the two first bevel gears 16 are symmetrically arranged, the two first bevel gears 16 rotate in opposite directions, which will drive the rotating shaft 3 to rotate in the opposite direction and reset, thereby driving the electric suction cup 7 to rotate in the opposite direction and reset, placing the packaging box containing agricultural products that has been adsorbed on the conveyor 1, and the conveyor 1 will transport it into the warehouse.

[0046] The side walls of the two mounting blocks 2 are fixedly connected to a mounting frame 21. The top of the mounting frame 21 is rotatably connected to a support tube 22. The inner wall of the support tube 22 is sealed and slidably connected to a sliding plug 23 (such as Figure 8 As shown), the side wall of the sliding plug 23 is fixedly connected to a reinforcing rod 24, and the side walls of the two loading and unloading rods 4 close to each other are fixedly connected to a fixing rod 25. One end of the reinforcing rod 24 passes through the side wall of the support tube 22 and is rotatably connected to the fixing rod 25.

[0047] It should be noted that the support tube 22 and the reinforcing rod 24 can share the pressure applied to the loading and unloading rod 4, thereby achieving the effect of enhancing the overall structural strength and thus improving stability.

[0048] The protective mechanism also includes a second slide 30 that is sealingly and slidingly connected to the inner wall of the pneumatic chamber 272. The pneumatic chamber 272 is filled with a non-Newtonian fluid. The support tube 22 is connected to the pneumatic chamber 272 through a connecting pipe 31, and a connecting hole 34 is opened on the side wall of the sealing plate 27. A pressure relief valve is installed on the inner wall of the connecting hole 34.

[0049] It should be noted that the non-Newtonian fluid is filled in the space between the second slide plate 30 and the sealing plate 27 .

[0050] A pressure relief hole 32 and a one-way air inlet 33 are provided on the inner wall of the pneumatic cavity 272 . The one-way air inlet 33 only allows external air to enter the pneumatic cavity 272 . A pressure relief valve is installed on the inner wall of the pressure relief hole 32 .

[0051] Furthermore, since the heights of the packaging boxes for agricultural products vary, some agricultural products are large in size and therefore require high packaging boxes, while some agricultural products are small in size and therefore require low packaging boxes. The electric suction cup 7 rotates at the same angle each time it is placed. For a packaging box with a higher height, if the electric suction cup 7 rotates downward at the same angle, the packaging box may be squeezed, or even the agricultural products inside the packaging box may be squeezed, causing damage to the agricultural products. Therefore, when the electric suction cup 7 rotates downward to place the agricultural products, if the electric suction cup 7 starts to squeeze the packaging box, the rotation of the loading and unloading rod 4 will be affected. The speed will slow down, and the downward rotation of the loading and unloading rod 4 will pull the reinforcing rod 24 to move through the fixed rod 25, thereby driving the sliding plug 23 to move. At this time, the sliding plug 23 will squeeze the air in the support tube 22 into the pneumatic cavity 272 through the connecting pipe 31. If it is placed normally without squeezing the packaging box, the loading and unloading rod 4 will rotate downward faster, and the sliding plug 23 will move faster, so the gas pumped into the pneumatic cavity 272 will flow faster, have greater kinetic energy, and thus generate greater pressure. When acting on the non-Newtonian fluid, the non-Newtonian fluid will be under greater pressure at this time, and the liquid will be The non-Newtonian fluid is converted into a solid and cannot enter the drive chamber 271 through the connecting hole 34. When the electric suction cup 7 starts to squeeze the packaging box, the rotation speed of the loading and unloading rod 4 will slow down. At this time, the pumping speed into the pneumatic chamber 272 will slow down. The kinetic energy of the gas is small, and the pressure acting on the non-Newtonian fluid is small. The non-Newtonian fluid is still in a liquid state. At this time, the non-Newtonian fluid will enter the drive chamber 271 through the connecting hole 34 under the squeezing of the second slide 30, thereby pushing the first slide 28 to move, driving the push rod 29 to move, and pushing the spline sleeve 15 to move to the left. , so that the first bevel gear 16 on the right side moves to engage with the second bevel gear 41, and the rotation direction of the rotating shaft 3 is quickly changed at this time, so that the rotating shaft 3 drives the electric suction cup 7 to rotate upward immediately, so that the packaging box is no longer squeezed, which can effectively protect the packaging box and the agricultural products inside it from being damaged. Therefore, for the loading and unloading of packaging boxes of agricultural products of different specifications, the unloading angle will be automatically adjusted to ensure that the agricultural product packaging box will not be squeezed during unloading, and the agricultural product packaging box and the agricultural products inside will not be damaged, which is more reliable.

[0052] It is worth mentioning that compared with the existing ordinary robotic arms, this device can freely adjust the unloading angle according to the size of the agricultural product packaging box, thereby effectively protecting the agricultural product packaging box and agricultural products, and has higher reliability. Compared with the existing intelligent robotic arms, it only replaces the intelligent identification system with a simple mechanical linkage structure, which greatly reduces the cost of the product, and is therefore more suitable for application in ordinary small and medium-sized enterprises.

[0053] The conveyor 1 is provided with an anti-fall mechanism, which includes a mounting base 35 fixedly connected to the upper end of the conveyor 1 , a chute 36 is provided on the top of the mounting base 35 , and two centering plates 37 are symmetrically slidably connected to the inner wall of the chute 36 .

[0054] The anti-fall mechanism also includes a bidirectional screw 38 rotatably connected to the inner wall of the slide groove 36, the side walls of the bidirectional screw 38 are respectively threadedly connected to the two center plates 37, one end of the rotating rod 9 passes through the side wall of the vertical plate 8 and is fixedly connected to the second gear 39, one end of the bidirectional screw 38 passes through the side wall of the mounting seat 35 and is fixedly connected to the third gear 40, and the second gear 39 is meshed with the third gear 40.

[0055] Furthermore, during the loading and unloading process, the limit rod 11 will drive the limit block 10 to rotate alternately forward and reverse, and then drive the rotating rod 9 to rotate alternately forward and reverse, thereby driving the second gear 39 to rotate forward and reverse, driving the third gear 40 to rotate forward and reverse, and thereby driving the bidirectional screw 38 to rotate alternately forward and reverse, so that the two centering plates 37 move closer to and away from each other, thereby pushing the packaging box containing agricultural products placed on the conveyor 1 to the center position of the conveyor 1, avoiding the packaging box being placed at the edge of the conveyor 1, increasing the risk of it falling during transportation.

[0056] A method for controlling the storage of agricultural products, comprising the following steps:

[0057] S1, the truck loaded with agricultural products drives to the conveyor 1 at the warehouse door and waits for unloading;

[0058] S2. Start the motor 18 to rotate the electric suction cup 7 to the rear of the truck to suck up the agricultural product packaging boxes in the truck compartment, and then place the agricultural product packaging boxes on the conveyor 1 for transportation into the warehouse;

[0059] S3. During the conveying process, when placing the agricultural product packaging box on the conveyor 1, the electric suction cup 7 will automatically adjust the downward swing angle according to the height of the packaging box to avoid crushing the agricultural products, and the two centering plates 37 will move relative to each other to push the agricultural product packaging box on the conveyor 1 to the center position to prevent it from falling during the conveying process;

[0060] S4. After the agricultural products are put into storage, the truck is driven away and the conveyor 1 is moved to its original position.

[0061] In the present invention, the truck loaded with agricultural products is driven to the warehouse so that the rear end of the truck compartment is on the side of the conveyor 1 close to the electric suction cup 7, and then the motor 18 is started to drive the output shaft 17 to rotate. Initially, the first bevel gear 16 on the right side is meshed with the second bevel gear 41 (as shown in the attached figure). Figure 7 As shown), the output shaft 17 will drive the second bevel gear 41 to rotate, and then drive the first bevel gear 16 meshing with it to rotate, drive the spline sleeve 15 to rotate forward, and then drive the spline shaft 14 to rotate forward, thereby driving the rotating shaft 3 to rotate forward, and driving the loading and unloading rod 4 to rotate counterclockwise (as shown). Figure 3When the mounting rod 5 rotates clockwise, the electric suction cups 7 will revolve around the center of the rotating shaft 3, and move to the high position of the carriage. When the mounting rod 4 rotates counterclockwise, the rotating rod 9 will rotate counterclockwise by 90 degrees through the rectangular block 12 and the limiting rod 11. At this time, the limiting rod 11 will slide on the side wall of the limiting block 10, and due to the limiting of the limiting rod 11, the mounting rod 5 will rotate counterclockwise by 90 degrees, and then drive the plurality of electric suction cups 7 to rotate by 90 degrees. Therefore, when the electric suction cups 7 rotate to the high position of the carriage, they will suck the packaging box containing agricultural products in the carriage. When the output shaft 17 rotates, it will drive the fourth gear 42 to rotate, and then drive the two first gears 20 to rotate, drive the two transmission shafts 19 to rotate in the same direction, and then drive the two cams 43 to rotate synchronously. At this time, the cam 43 on the left side will press the spline sleeve 15 to the right (as shown in Figure 7 Therefore, the first bevel gear 16 on the left will move to mesh with the second bevel gear 41, and the first bevel gear 16 on the right will disengage. Since the two first bevel gears 16 are symmetrically arranged, the rotating directions of the two first bevel gears 16 are opposite. At this time, the rotating shaft 3 will rotate reversely to reset, and then drive the electric suction cups 7 to rotate reversely to reset, and place the packaging box containing agricultural products which is sucked to the conveyor 1, and then the conveyor 1 will convey it into the warehouse. Therefore, the agricultural products in the carriage can be quickly transported to the conveyor 1 without manual loading and unloading, which is more efficient, automatic, and saves labor cost.

[0062] During the loading and unloading process, the limiting rod 11 will drive the limiting block 10 to rotate alternately, and then drive the rotating rod 9 to rotate alternately, thereby driving the second gear 39 to rotate alternately, driving the third gear 40 to rotate alternately, thereby driving the bidirectional screw 38 to rotate alternately, so that the two centering plates 37 move closer to each other and farther away from each other, thereby pushing the packaging box containing agricultural products placed on the conveyor 1 to the center position of the conveyor 1, avoiding the packaging box being placed at the edge of the conveyor 1, and increasing the risk of falling during the conveying process.

[0063] In addition, due to the differences in the heights of the packaging boxes for agricultural products, some agricultural products are large in size and the packaging boxes are high, on the contrary, some agricultural products are small in size and the packaging boxes are low in height. The electric suction cup 7 rotates at the same angle each time it is placed. For a packaging box with a higher height, if it rotates downward at the same angle, it may squeeze the packaging box, or even squeeze the agricultural products inside the packaging box, causing damage to the agricultural products. Therefore, when the electric suction cup 7 rotates downward to place the agricultural products, if the electric suction cup 7 starts to squeeze the packaging box, the rotation speed of the loading and unloading rod 4 will be reduced. The speed will slow down, and the downward rotation of the loading and unloading rod 4 will pull the reinforcing rod 24 through the fixing rod 25 to move, thereby driving the sliding plug 23 to move. At this time, the sliding plug 23 will squeeze the air in the support tube 22 into the pneumatic cavity 272 through the connecting pipe 31. If it is placed normally without squeezing the packaging box, the downward rotation speed of the loading and unloading rod 4 is faster, and the moving speed of the sliding plug 23 is faster, so the gas pumped into the pneumatic cavity 272 has a faster flow rate and greater kinetic energy, thereby generating a greater pressure acting on the non-Newtonian fluid. At this time, the non-Newtonian fluid is under greater pressure and will be liquid. The non-Newtonian fluid is converted into a solid and cannot enter the drive chamber 271 through the connecting hole 34. When the electric suction cup 7 starts to squeeze the packaging box, the rotation speed of the loading and unloading rod 4 will slow down. At this time, the pumping speed into the pneumatic chamber 272 will slow down. The kinetic energy of the gas is small, and the pressure acting on the non-Newtonian fluid is small. The non-Newtonian fluid is still in liquid state. At this time, the non-Newtonian fluid will enter the drive chamber 271 through the connecting hole 34 under the squeezing of the second slide 30, thereby pushing the first slide 28 to move, driving the push rod 29 to move, and pushing the spline sleeve 15 to move to the left. The first bevel gear 16 on the right side moves to engage with the second bevel gear 41, and the rotation direction of the rotating shaft 3 is quickly changed at this time, so that the rotating shaft 3 drives the electric suction cup 7 to rotate upward immediately, thereby no longer squeezing the packaging box, which can effectively protect the packaging box and the agricultural products inside it from being damaged. Therefore, it can be suitable for loading and unloading packaging boxes of different specifications containing agricultural products. The unloading angle will be automatically adjusted to ensure that the agricultural product packaging box will not be squeezed during unloading, and the agricultural product packaging box and the agricultural products inside will not be damaged, which is more reliable.

[0064] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A storage auxiliary transport device for agricultural products, characterized in that: include: Conveyor (1); An auxiliary loading and unloading mechanism, the auxiliary loading and unloading mechanism comprises two mounting blocks (2) symmetrically fixedly connected to the upper end of the conveyor (1), the side walls of the two mounting blocks (2) close to each other being rotatably connected to a rotating shaft (3), the side walls of the rotating shaft (3) being symmetrically fixedly connected to two loading and unloading rods (4), the side walls of the two loading and unloading rods (4) close to each other being rotatably connected to a mounting rod (5), the side walls of the mounting rods (5) being fixedly connected to a mounting plate (6), and the lower end of the mounting plate (6) being fixedly connected to a plurality of electric suction cups (7); A driving mechanism is mounted on the mounting block (2), and the driving mechanism comprises a U-shaped frame (13); A protective mechanism is installed on the U-shaped frame (13), and the protective mechanism includes a slide (26) fixedly connected to the side wall of the U-shaped frame (13); the inner wall of the slide (26) is sealed and fixedly connected with a sealing plate (27); the sealing plate (27) divides the interior of the slide (26) into two parts, a driving chamber (271) and a pneumatic chamber (272); the inner wall of the driving chamber (271) is sealed and slidably connected with a first slide (28); the side wall of the first slide (28) is fixedly connected with a push rod (29); the other end of the push rod (29) passes through the side wall of the slide (26) and the inner wall of the U-shaped frame (13).

2. The agricultural product storage auxiliary transportation device according to claim 1, characterized in that: in: The auxiliary loading and unloading mechanism also includes a vertical plate (8) fixedly connected to the upper end of the conveyor (1), the side wall of the vertical plate (8) is rotatably connected to a rotating rod (9), the side wall of the rotating rod (9) is fixedly connected to a limiting block (10), one end of the installation rod (5) passes through the side wall of the loading and unloading rod (4) and is fixedly connected to a rectangular block (12), the upper end of the rectangular block (12) is fixedly connected to a limiting rod (11), and the side wall of the limiting rod (11) is slidably connected to the limiting block (10).

3. The agricultural product storage auxiliary transportation device according to claim 1, characterized in that: in: The driving mechanism comprises a U-shaped frame (13) fixedly connected to the side wall of the mounting block (2); one end of the rotating shaft (3) passes through the side wall of the mounting block (2) and is fixedly connected to a spline shaft (14); a spline sleeve (15) is provided on the side wall sliding sleeve of the spline shaft (14); two first bevel gears (16) are symmetrically fixedly connected to the side wall of the spline sleeve (15); an output shaft (17) is rotatably connected to the inner wall of the U-shaped frame (13); a second bevel gear (41) is fixedly connected to the side wall of the output shaft (17); a motor (18) is fixedly connected to the side wall of the U-shaped frame (13); an output end of the motor (18) passes through the side wall of the U-shaped frame (13) and is fixedly connected to the output shaft (17).

4. The agricultural product storage auxiliary transportation device according to claim 3, characterized in that: in: The driving mechanism further comprises two transmission shafts (19) symmetrically connected to the inner wall of the U-shaped frame (13), the side walls of the two transmission shafts (19) are fixedly connected to the first gear (20), the side wall of the output shaft (17) is fixedly connected to the fourth gear (42), the fourth gear (42) is meshed with the two first gears (20), one end of the two transmission shafts (19) is fixedly connected to a cam (43), and the side wall of the cam (43) slides against the side wall of the spline sleeve (15).

5. The agricultural product storage auxiliary transportation device according to claim 4, characterized in that: in: The side walls of the two mounting blocks (2) are fixedly connected to a mounting frame (21); the top of the mounting frame (21) is rotatably connected to a support tube (22); the inner wall of the support tube (22) is sealed and slidably connected to a sliding plug (23); the side wall of the sliding plug (23) is fixedly connected to a reinforcing rod (24); the side walls of the two loading and unloading rods (4) close to each other are fixedly connected to a fixing rod (25); one end of the reinforcing rod (24) passes through the side wall of the support tube (22) and is rotatably connected to the fixing rod (25).

6. The agricultural product storage auxiliary transportation device according to claim 5, characterized in that: in: The protection mechanism further comprises a second slide plate (30) sealingly and slidingly connected to the inner wall of the pneumatic chamber (272); the pneumatic chamber (272) is filled with a non-Newtonian fluid; the support tube (22) is connected to the pneumatic chamber (272) via a connecting pipe (31); a connecting hole (34) is provided on the side wall of the sealing plate (27); and a pressure relief valve is installed on the inner wall of the connecting hole (34).

7. The agricultural product storage auxiliary transportation device according to claim 6, characterized in that: in: A pressure relief hole (32) and a one-way air inlet (33) are provided on the inner wall of the pneumatic cavity (272), and a pressure relief valve is installed on the inner wall of the pressure relief hole (32).

8. The agricultural product storage auxiliary transportation device according to claim 2, characterized in that: in: The conveyor (1) is provided with an anti-fall mechanism, which comprises a mounting seat (35) fixedly connected to the upper end of the conveyor (1), a chute (36) being provided on the top of the mounting seat (35), and two centering plates (37) being symmetrically slidably connected to the inner wall of the chute (36).

9. The agricultural product storage auxiliary transportation device according to claim 8, characterized in that: in: The anti-fall mechanism also includes a bidirectional screw (38) rotatably connected to the inner wall of the slide groove (36), the side walls of the bidirectional screw (38) are respectively threadedly connected to the two center plates (37), one end of the rotating rod (9) passes through the side wall of the vertical plate (8) and is fixedly connected to the second gear (39), one end of the bidirectional screw (38) passes through the side wall of the mounting seat (35) and is fixedly connected to the third gear (40), and the second gear (39) is meshed with the third gear (40).

10. A method for controlling the entry of agricultural products, comprising the auxiliary transport device for the entry of agricultural products according to claim 9, characterized in that: The following steps are involved: S1. A truck loaded with agricultural products drives to the conveyor (1) at the warehouse entrance and waits for unloading; S2, starting the motor (18), which can cause the electric suction cup (7) to rotate to the rear of the truck to suck the agricultural product packaging boxes in the truck compartment, and then place the agricultural product packaging boxes on the conveyor (1) for transportation into the warehouse; S3. During the conveying process, when the electric suction cup (7) places the agricultural product packaging box on the conveyor (1), it will automatically adjust the downward swing angle according to the height of the packaging box to avoid crushing the agricultural products, and the two centering plates (37) will move relative to each other to push the agricultural product packaging box on the conveyor (1) to the center position to prevent it from falling during the conveying process; S4. After the agricultural products are put into storage, the truck is driven away and the conveyor (1) is moved to its original position.

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