AGV (Automatic Guided Vehicle) capable of rapidly unloading

Abstract

The invention discloses an AGV trolley capable of rapidly unloading, and relates to the technical field of AGV trolleys, and the AGV trolley comprises a trolley body and an unloading mechanism; a material box is placed on the trolley body, and the two ends of the material box are fixedly connected with handles respectively. The two unloading mechanisms are arranged at the two ends of the trolley body correspondingly. Each unloading mechanism comprises a base, a first motor, a driving gear, a driven gear, a first rotating shaft, a second rotating shaft, a first inclined rod, a second inclined rod, a movable plate, a supporting plate and a lifting assembly. Firstly, the two lifting assemblies at the two ends of the trolley body drive the supporting plates to ascend correspondingly, the two supporting plates abut against handles at the two ends of a material box correspondingly, then the two supporting plates can lift the material box, and then the two unloading mechanisms drive the supporting plates on the two unloading mechanisms to rotate correspondingly; the two supporting plates can drive the material box to rotate one side of the trolley body, then the two lifting assemblies drive the supporting plates to descend, and the material box can be placed on the ground.

Description

Technical Field

[0001] The present invention relates to the technical field of AGV vehicles, and more specifically, it relates to an AGV vehicle capable of quickly unloading goods. Background Art

[0002] An automated guided vehicle, also called an AGV vehicle, is an unmanned transport vehicle equipped with an automatic guidance device such as electromagnetic or optical. It can travel along a specified guidance path and has safety protection and various transfer functions. AGV vehicles usually use rechargeable batteries as the power source and are controlled by a computer system for their travel routes and behaviors. The main functions of AGV vehicles include material handling, automatic charging, path planning, etc. They are widely used in multiple industries such as warehousing, logistics, automobile manufacturing, and medical. Their advantages include high automation, automatic charging, improved production efficiency, reduced labor costs, etc. There are various types of AGV vehicles, such as towing type, pallet type, forklift type, etc., which can be selected according to different application scenarios and requirements.

[0003] When it is necessary to unload the materials on the AGV vehicle, most of the existing ones need to rely on manual labor or other equipment to complete the unloading. The efficiency of unloading by manual labor is low, and unloading by other equipment will cause the AGV vehicle to only be able to transport the materials to a designated position, resulting in a poor user experience. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an AGV vehicle capable of quickly unloading goods.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An AGV vehicle capable of quickly unloading goods, comprising a vehicle body, an unloading mechanism, and a support mechanism;

[0006] A material box is placed on the vehicle body, and handles are respectively and fixedly connected to both ends of the material box;

[0007] There are two unloading mechanisms, which are respectively arranged at both ends of the trolley body. Both of the two unloading mechanisms are used to unload the material box from the trolley body. Each unloading mechanism includes a base, a first motor, a driving gear, a driven gear, a first rotating shaft, a second rotating shaft, a first inclined rod, a second inclined rod, a movable plate, a support plate and a lifting assembly. The base is movably connected to the trolley body. A first motor is installed on the base. A driving gear is fixedly connected to the output shaft of the first motor. A driven gear is meshingly connected to the driving gear. The driven gear is fixedly connected to the first rotating shaft. The first rotating shaft is rotatably connected to the base. A second rotating shaft is rotatably connected to the base. A first inclined rod is fixedly connected to the first rotating shaft. A second inclined rod is fixedly connected to the second rotating shaft. The first inclined rod and the second inclined rod are equal in length and parallel to each other. The ends of the first inclined rod and the second inclined rod far from the base are respectively hinged to the movable plate. A support plate is movably connected to the movable plate. The support plate is located below the handle;

[0008] The lifting assembly is arranged on the movable plate and is used to drive the support plate to lift and lower;

[0009] There are two support mechanisms, which are respectively arranged at both ends of the trolley body. Both of the two support mechanisms are used to support the trolley body during unloading.

[0010] A further technical solution of the present application: The lifting assembly includes a first electric cylinder and a guide rod. The first electric cylinder is installed on the movable plate. The piston rod of the first electric cylinder penetrates through the movable plate and is fixedly connected to the support plate. A plurality of guide rods are fixedly connected to the support plate. All of the plurality of guide rods are slidably connected to the movable plate.

[0011] A further technical solution of the present application: Each unloading mechanism further includes a slide rail and a slider. A plurality of slide rails are provided and are all fixedly connected to the trolley body. Sliders are respectively slidably connected to the plurality of slide rails. All of the plurality of sliders are fixedly connected to the base;

[0012] A double-output shaft motor is installed on the trolley body. Driving shafts are respectively fixedly connected to the output shafts at both ends of the double-output shaft motor. Both of the two driving shafts are rotatably connected to the trolley body. Threaded grooves are respectively formed at the ends of the two driving shafts far from the double-output shaft motor. The two threaded grooves are respectively threadedly connected to the two bases. The spiral directions of the two threaded grooves are opposite.

[0013] A further technical solution of the present application: A rubber pad is fixedly connected to the support plate.

[0014] A further technical solution of the present application: A plurality of insertion blocks are fixedly connected to the support plate. A plurality of insertion grooves adapted to the insertion blocks are formed on the handle.

[0015] A further technical solution of the present application: Vertical shafts are fixedly connected to both ends of the pallet respectively. Clamping plates are rotatably connected to the two vertical shafts respectively. Springs are fixedly connected to the two clamping plates respectively. The ends of the two springs away from the clamping plates are fixedly connected to top plates respectively. Both top plates are fixedly connected to the pallet.

[0016] A further technical solution of the present application: Each support mechanism includes a second electric cylinder and a support arm. The second electric cylinder is hinged to the trolley body. The piston rod of the second electric cylinder is hinged to the side wall of the support arm. One end of the support arm is hinged to the trolley body.

[0017] A further technical solution of the present application: A support wheel is rotatably connected to the other end of the support arm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. When unloading the material box from the trolley body, first drive the pallets to rise respectively through the two lifting components at both ends of the trolley body. The two pallets are respectively in contact with the handles at both ends of the material box, and the two pallets can lift the material box. Subsequently, drive the pallets on the two unloading mechanisms to rotate respectively, and the two pallets can drive the material box to rotate to one side of the trolley body. Then drive the pallets to descend respectively through the two lifting components, and the material box will be placed on the ground, completing the unloading of the material box. It has higher efficiency than manual work, is not restricted by the designated unloading position, is more flexible and convenient, and has a better user experience;

[0020] 2. During the driving process of the trolley body, the two pallets can be driven to approach each other by the double-output shaft motor, so that both pallets are in contact with the material box, thereby clamping and fixing the material box; and when the pallet is in contact with the material box, the material box can overcome the thrust of the spring and push the clamping plate to rotate, so that the multiple clamping plates respectively fix the four corners of the material box, avoiding the material box from falling off the trolley body;

[0021] 3. Before unloading the material box, push the support arm to rotate outward from the trolley body through the second electric cylinder, so that one end of the support arm is in contact with the ground, thereby supporting the trolley body and avoiding the trolley body from tipping over during the unloading process.

[0022] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following takes the preferred embodiments of the present invention and combines with the drawings to describe in detail as follows. The specific implementation manners of the present invention are given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the structure of a double-output shaft motor of an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of the structure of a unloading mechanism of an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of the structure of the first inclined rod and the second inclined rod of an embodiment of the present invention;

[0028] Figure 5 is a schematic diagram of the structure of a clamping plate of an embodiment of the present invention;

[0029] Figure 6 is a schematic diagram of the structure of a support mechanism of an embodiment of the present invention.

[0030] In the figure: 1. trolley body; 2. material box; 3. handle; 4. base; 5. first motor; 6. driving gear; 7. driven gear; 8. first rotating shaft; 9. second rotating shaft; 10. first inclined rod; 11. second inclined rod; 12. movable plate; 13. support plate; 14. first electric cylinder; 15. guide rod; 16. slide rail; 17. slider; 18. double-output shaft motor; 19. transmission shaft; 20. thread groove; 21. rubber pad; 22. insertion block; 23. insertion groove; 24. vertical shaft; 25. clamping plate; 26. spring; 27. top plate; 28. second electric cylinder; 29. support arm; 30. support wheel. Detailed Embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the embodiments of the present invention, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] Refer to Figures 1 to 6 , in an embodiment of the present application, an AGV cart capable of quickly unloading goods includes a cart body 1, a unloading mechanism, and a support mechanism;

[0035] A material box 2 is placed on the cart body 1, and the material to be transported is placed in the material box 2. Both ends of the material box 2 are fixedly connected with handles 3 respectively;

[0036] There are two unloading mechanisms, which are respectively arranged at both ends of the trolley body 1. Both unloading mechanisms are used to unload the material box 2 from the trolley body 1. Each unloading mechanism includes a base 4, a first motor 5, a driving gear 6, a driven gear 7, a first rotating shaft 8, a second rotating shaft 9, a first inclined rod 10, a second inclined rod 11, a movable plate 12, a support plate 13 and a lifting assembly. The base 4 is movably connected to the trolley body 1. The first motor 5 is installed on the base 4. The output shaft of the first motor 5 is fixedly connected with the driving gear 6. The driving gear 6 is meshed with the driven gear 7. The driven gear 7 is fixedly connected with the first rotating shaft 8. The first rotating shaft 8 is rotatably connected to the base 4. The second rotating shaft 9 is rotatably connected to the base 4. The first inclined rod 10 is fixedly connected to the first rotating shaft 8. The second inclined rod 11 is fixedly connected to the second rotating shaft 9. The lengths of the first inclined rod 10 and the second inclined rod 11 are equal and parallel to each other. The ends of the first inclined rod 10 and the second inclined rod 11 away from the base 4 are both hinged to the movable plate 12. The support plate 13 is movably connected to the movable plate 12. The support plate 13 is located below the handle 3;

[0037] As Figure 2 and Figure 3 , the first motor 5 can drive the driving gear 6 to rotate. The driving gear 6 drives the first rotating shaft 8 to rotate through the engaged driven gear 7. The first rotating shaft 8 drives the first inclined rod 10 to rotate. The movable plate 12 is supported by the first inclined rod 10 and the second inclined rod 11 together. The movable plate 12 is parallel to the connection line of the first rotating shaft 8 and the second rotating shaft 9. The movable plate 12 and the support plate 13 are both horizontally arranged. The rotating first inclined rod 10 can drive the movable plate 12 to rotate while maintaining a horizontal state. The movable plate 12 drives the support plate 13 to rotate;

[0038] The lifting assembly is arranged on the movable plate 12. The lifting assembly is used to drive the support plate 13 to lift and lower;

[0039] As Figure 3 and Figure 4 , when unloading the material box 2 from the trolley body 1, first, the two lifting assemblies at both ends of the trolley body 1 drive the support plates 13 to rise respectively. The two support plates 13 are respectively in contact with the handles 3 at both ends of the material box 2. The two support plates 13 can then lift the material box 2;

[0040] As Figure 4 , subsequently, the two unloading mechanisms drive the support plates 13 thereon to rotate towards Figure 4 the left side of the trolley body 1 in Figure 4On the left side of the trolley body 1, the two lifting components drive the pallet 13 to descend respectively, and the material box 2 will be placed on the ground, completing the unloading of the material box 2. It has higher efficiency than manual labor, is not restricted by the designated unloading position, is more flexible and convenient, and has a better user experience;

[0041] There are two support mechanisms, which are respectively arranged at both ends of the trolley body 1, and both support mechanisms are used to support the trolley body 1 during unloading.

[0042] As a preferred embodiment of the present application, the lifting component includes a first electric cylinder 14 and a guide rod 15. The first electric cylinder 14 is installed on the movable plate 12. The piston rod of the first electric cylinder 14 penetrates through the movable plate 12 and is fixedly connected to the pallet 13. A plurality of guide rods 15 are fixedly connected to the pallet 13, and all the plurality of guide rods 15 are slidably connected to the movable plate 12;

[0043] Such as Figure 3 and Figure 4 , the movable plate 12 supports the pallet 13 through two guide rods 15, and the piston rod of the first electric cylinder 14 can drive the pallet 13 to rise or fall.

[0044] As a preferred embodiment of the present application, each unloading mechanism further includes a slide rail 16 and a slider 17. A plurality of slide rails 16 are provided and are all fixedly connected to the trolley body 1. A plurality of sliders 17 are respectively slidably connected to the plurality of slide rails 16, and all the plurality of sliders 17 are fixedly connected to the base 4;

[0045] Such as Figure 2 and Figure 3 , a plurality of slide rails 16 support the base 4 through the sliders 17 thereon, and the base 4 can move along the slide rail 16 through the sliders 17;

[0046] A double-output shaft motor 18 is installed on the trolley body 1. Transmission shafts 19 are respectively fixedly connected to the output shafts at both ends of the double-output shaft motor 18. Both the two transmission shafts 19 are rotatably connected to the trolley body 1. Thread grooves 20 are respectively formed at the ends of the two transmission shafts 19 away from the double-output shaft motor 18. The two thread grooves 20 are respectively threadedly connected to the two bases 4, and the spiral directions of the two thread grooves 20 are opposite;

[0047] Such as Figure 2 and Figure 3 , the double-output shaft motor 18 can drive the transmission shafts 19 at both ends to rotate. Since the spiral directions of the thread grooves 20 on the two transmission shafts 19 are opposite, the two rotating transmission shafts 19 can drive the two bases 4 at both ends of the trolley body 1 to move in opposite directions, thereby driving the two pallets 13 to move in opposite directions;

[0048] After the material box 2 is placed on the ground, the double-output shaft motor 18 drives the two pallets 13 to move away from each other, and the two pallets 13 can move away from below the handle 3. At this time, the unloading mechanism can drive the pallet 13 to rotate above the trolley body 1 and reset.

[0049] As a preferred embodiment of the present application, a rubber pad 21 is fixedly connected to the pallet 13 to increase the friction between the pallet 13 and the handle 3.

[0050] As a preferred embodiment of the present application, a plurality of plug-in blocks 22 are fixedly connected to the pallet 13, and a plurality of plug-in slots 23 adapted to the plug-in blocks 22 are opened on the handle 3;

[0051] Such as Figure 1 and Figure 3 , when the pallet 13 abuts against the handle 3, the plug-in block 22 on the pallet 13 can be inserted into the plug-in slot 23 on the handle 3, thereby improving the stability when the material box 2 is lifted.

[0052] As a preferred embodiment of the present application, vertical shafts 24 are respectively fixedly connected to both ends of the pallet 13, clamping plates 25 are respectively rotatably connected to the two vertical shafts 24, springs 26 are respectively fixedly connected to the two clamping plates 25, and the ends of the two springs 26 far from the clamping plates 25 are respectively fixedly connected to top plates 27, and both top plates 27 are fixedly connected to the pallet 13;

[0053] Such as Figure 1 and Figure 5 , during the driving process of the trolley body 1, the double-output shaft motor 18 can be used to drive the two pallets 13 to approach each other, so that both pallets 13 abut against the material box 2, thereby clamping and fixing the material box 2;

[0054] And when the pallet 13 abuts against the material box 2, the material box 2 can overcome the thrust of the spring 26 and push the clamping plate 25 to rotate, so that the plurality of clamping plates 25 respectively fix the four corners of the material box 2, preventing the material box 2 from falling off the trolley body 1;

[0055] When the pallet 13 moves away from the material box 2, the spring 26 can push the clamping plate 25 to rotate and reset.

[0056] As a preferred embodiment of the present application, each support mechanism includes a second electric cylinder 28 and a support arm 29. The second electric cylinder 28 is hinged to the trolley body 1, the piston rod of the second electric cylinder 28 is hinged to the side wall of the support arm 29, and one end of the support arm 29 is hinged to the trolley body 1;

[0057] Such as Figure 1 and Figure 6, before unloading the material box 2, the support arm 29 is pushed by the second electric cylinder 28 to rotate outwardly of the trolley body 1, so that one end of the support arm 29 abuts against the ground, thereby supporting the trolley body 1 and preventing the trolley body 1 from tipping over during the unloading process.

[0058] As a preferred embodiment of the present application, a support wheel 30 is rotatably connected to the other end of the support arm 29. By abutting the support wheel 30 against the ground, wear of the support arm 29 can be avoided.

[0059] Working principle: When unloading the material box 2 from the trolley body 1, the two lifting components at both ends of the trolley body 1 are first used to drive the pallet 13 to rise respectively. The two pallets 13 are respectively abutted against the handles 3 at both ends of the material box 2, and the two pallets 13 can then lift the material box 2;

[0060] Subsequently, the two unloading mechanisms are used to drive the pallets 13 thereon to rotate respectively. The two pallets 13 can then drive the material box 2 to rotate to one side of the trolley body 1. Then, the two lifting components are used to drive the pallets 13 to descend respectively, and the material box 2 will be placed on the ground, completing the unloading of the material box 2.

[0061] It should be noted that: the electrical components appearing in this application document are all electrically connected to the external main controller and 220V mains power. And the main controller can be a processor, an alarm module, a drive module, etc., which is used to control conventional known devices. The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. in the prior art for connection. And the machinery, parts and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, no specific description will be made here.

[0062] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0063] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. The narrative manner of this specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An AGV vehicle capable of quickly unloading goods, characterized in that It includes a trolley body (1), a unloading mechanism and a supporting mechanism; A material box (2) is placed on the trolley body (1), and handles (3) are fixedly connected to both ends of the material box (2); There are two unloading mechanisms which are respectively arranged at both ends of the trolley body (1). Both unloading mechanisms are used to unload the material box (2) from the trolley body (1). Each unloading mechanism includes a base (4), a first motor (5), a driving gear (6), a driven gear (7), a first rotating shaft (8), a second rotating shaft (9), a first inclined rod (10), a second inclined rod (11), a movable plate (12), a support plate (13) and a lifting component. The base (4) is movably connected to the trolley body (1). The first motor (5) is installed on the base (4). The output shaft of the first motor (5) is fixedly connected to the driving gear (6). The driving gear (6) is meshed with the driven gear (7). The driven gear (7) is fixedly connected to the first rotating shaft (8). The first rotating shaft (8) is rotatably connected to the base (4). The second rotating shaft (9) is rotatably connected to the base (4). The first inclined rod (10) is fixedly connected to the first rotating shaft (8). The second inclined rod (11) is fixedly connected to the second rotating shaft (9). The first inclined rod (10) and the second inclined rod (11) are equal in length and parallel to each other. The ends of the first inclined rod (10) and the second inclined rod (11) far away from the base (4) are both hinged to the movable plate (12). The support plate (13) is movably connected to the movable plate (12). The support plate (13) is located below the handle (3); The lifting component is arranged on the movable plate (12), and the lifting component is used to drive the support plate (13) to lift and lower; There are two supporting mechanisms which are respectively arranged at both ends of the trolley body (1). Both supporting mechanisms are used to support the trolley body (1) during unloading.

2. The AGV trolley capable of quickly unloading goods according to claim 1, characterized in that: The lifting component includes a first electric cylinder (14) and a guide rod (15). The first electric cylinder (14) is installed on the movable plate (12). The piston rod of the first electric cylinder (14) penetrates through the movable plate (12) and is fixedly connected to the support plate (13). A plurality of guide rods (15) are fixedly connected to the support plate (13). All the guide rods (15) are slidably connected to the movable plate (12).

3. The AGV cart capable of quickly unloading goods according to claim 1, wherein: Each unloading mechanism also includes a slide rail (16) and a slider (17). A plurality of slide rails (16) are provided and are all fixedly connected to the trolley body (1). The sliders (17) are respectively slidably connected to the plurality of slide rails (16). All the sliders (17) are fixedly connected to the base (4); A double-output shaft motor (18) is installed on the trolley body (1). Transmission shafts (19) are respectively and fixedly connected to the output shafts at both ends of the double-output shaft motor (18). Both of the transmission shafts (19) are rotatably connected to the trolley body (1). Thread grooves (20) are respectively formed at the ends of the two transmission shafts (19) away from the double-output shaft motor (18). The two thread grooves (20) are respectively in threaded connection with the two bases (4), and the spiral directions of the two thread grooves (20) are opposite.

4. The AGV trolley capable of quickly unloading goods according to claim 1, characterized in that: A rubber pad (21) is fixedly connected to the pallet (13).

5. An AGV cart capable of quickly unloading goods according to claim 1, characterized in that: A plurality of insertion blocks (22) are fixedly connected to the pallet (13), and a plurality of insertion grooves (23) adapted to the insertion blocks (22) are formed on the handle (3).

6. The AGV cart capable of quickly unloading goods according to claim 3, characterized in that: Vertical shafts (24) are respectively fixedly connected to both ends of the pallet (13). Clamping plates (25) are respectively rotatably connected to the two vertical shafts (24). Springs (26) are respectively fixedly connected to the two clamping plates (25). The ends of the two springs (26) away from the clamping plates (25) are respectively fixedly connected to top plates (27), and both of the top plates (27) are fixedly connected to the pallet (13).

7. An AGV cart capable of quickly unloading goods according to claim 1, characterized in that: Each support mechanism includes a second electric cylinder (28) and a support arm (29). The second electric cylinder (28) is hinged to the trolley body (1). The piston rod of the second electric cylinder (28) is hinged to the side wall of the support arm (29). One end of the support arm (29) is hinged to the trolley body (1).

8. An AGV cart capable of quickly unloading goods according to claim 7, characterized in that: A support wheel (30) is rotatably connected to the other end of the support arm (29).

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