AGV conveying device

Abstract

The invention is suitable for the technical field of AGV conveying, and provides an AGV conveying device which comprises an automatic guided vehicle. The power supply track part is fixedly mounted on the ground; a sliding part is slidably arranged on the power supply track part; a mounting cavity is formed in the automatic guide vehicle; a charging connecting part is arranged in the mounting cavity; according to the device, the automatic guided vehicle is controlled to move to be close to the power supply track part, the charging connecting part is controlled to descend to be pressed on the sliding part, electric energy is transmitted through a transmitting coil on the electric energy receiving part, and the electric energy is received through a receiving coil on the charging connecting part; the movement of the automatic guided vehicle drives the sliding part to move synchronously, so that the automatic guided vehicle is charged while working, the effective working time of the automatic guided vehicle is prolonged, and the conveying efficiency of the automatic guided vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the field of AGV conveying technology, and more particularly, to an AGV conveying device. Background Art

[0002] AGV is the abbreviation of Automated Guided Vehicle, which refers to an unmanned automated vehicle that has automatic guidance equipment such as magnetic strips, tracks or lasers, travels along a planned path, is powered by batteries, and is equipped with safety protection and various auxiliary mechanisms (such as transfer and assembly mechanisms).

[0003] Usually, multiple AGVs, a control computer (console), navigation equipment, charging equipment and peripheral accessories form an AGV system. Its main working principle is that under the monitoring and task scheduling of the control computer, the AGV can accurately follow the prescribed path, reach the designated location of the task, and complete a series of tasks.

[0004] When the battery power is low, it needs to be charged in time. However, AGVs usually need to park and charge in a dedicated charging area through wired charging or static wireless charging. The charging waiting time is long, making it difficult for the automated guided vehicle to continuously charge while moving, reducing the effective working time of the automated guided vehicle and thus affecting the transportation efficiency of the automated guided vehicle. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide an AGV conveying device, which controls the automatic guided vehicle to move close to the power rail part, and controls the charging connection part to descend and press on the sliding part, transmits electric energy through the transmitting coil on the power receiving part, and receives electric energy through the receiving coil on the charging connection part. The movement of the automatic guided vehicle drives the sliding part to move synchronously, thereby realizing that the automatic guided vehicle can work and charge at the same time, increasing the effective working time of the automatic guided vehicle, and thus improving the conveying efficiency of the automatic guided vehicle.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An AGV conveying device includes an automatic guided vehicle; it also includes a power rail part fixedly installed on the ground; a sliding part is slidably provided on the power rail part; an installation cavity is opened inside the automatic guided vehicle; a charging connection part is provided inside the installation cavity; the power rail part includes a fixed frame; a number of support plates are evenly fixed between the inner walls of the fixed frame; L-shaped support plates are symmetrically fixed on the side surfaces of the two support plates; a clamping plate is clamped between two adjacent L-shaped support plates; a conductive rail is fixed on the side surface of the clamping plate; the sliding part includes a fixed disk; two groups of conductive columns are symmetrically fixed through the bottom surface of the fixed disk; I-shaped conductive wheels compatible with the conductive rails are rotatably provided on the circumferential side surfaces of the conductive columns; an electric energy receiving part compatible with the charging connection part is slidably provided above the fixed disk; corresponding receiving coils and transmitting coils are respectively installed inside the charging connection part and the electric energy receiving part.

[0008] The present invention is further configured as follows: an electric push rod is fixedly installed on the top of the installation cavity; the charging connection part includes a base; slides that slide with the inner wall of the installation cavity are symmetrically fixed on the side surfaces of the base; a U-shaped plate fixedly connected to the two slides is fixed on the telescopic end of the electric push rod; a wireless charging conversion plate is fixed through the surface of the base; the receiving coil is fixedly installed on the bottom surface of the wireless charging conversion plate; a storage cavity is opened on the side of the automatic guided vehicle; a battery pack is installed inside the storage cavity; and the wireless charging conversion plate is electrically connected to the battery pack.

[0009] The present invention is further configured as follows: the power receiving part includes a wireless charging plate; an insulating wire tube is fixedly installed on the top of the wireless charging plate; the transmitting coil is fixedly installed on the top of the insulating wire tube; the transmitting coil is connected to the output end of the wireless charging plate through a cable; and the input end of the wireless charging plate is respectively connected to the two conductive posts through cables.

[0010] The present invention is further configured as follows: the fixed frame is provided with openings on both opposite sides, and the opening surfaces are symmetrically fixed with inclined guide plates; the bottom surface of the fixed disk is symmetrically penetrated and fixed with insulating columns; the insulating columns and the conductive columns are symmetrically rotated with insulating wheels adapted to the two adjacent inclined guide plates; and the side surfaces of the conductive columns are fixed with protective covers.

[0011] The present invention is further configured as follows: a plurality of avoidance holes are evenly opened on the top of the support plate; a through hole is opened on the inner bottom surface of the avoidance hole; the ends of the two adjacent inclined guide plates are respectively fixedly connected with an upper cloth belt and a lower cloth belt; sprockets are installed on the upper cloth belt and the lower cloth belt; two pull tabs are symmetrically fixed on the side of the protective cover; a pull head is provided on the end of the pull tab that is compatible with the two sprockets; and upper and lower stops are respectively installed at both ends of the upper cloth belt and the lower cloth belt.

[0012] The present invention is further configured as follows: a support ring is fixed on the surface of the fixed disk; a plurality of L-shaped baffles are evenly fixed on the surface of the fixed disk; a fixing ring coaxial with the support ring is fixed between the ends of each of the L-shaped baffles; an annular groove is formed between the fixing ring and the support ring; the wireless charging plate is slidably arranged in the annular groove; a push rod is slidably arranged through the side of the L-shaped baffle; a stop block is fixed at the end of the push rod; a reset spring mounted on the push rod is fixedly connected between the stop block and the L-shaped support plate; an annular cavity is provided on the side surface of the wireless charging plate to be plugged into and cooperate with the push rod.

[0013] The present invention is further configured as follows: a swivel is rotatably provided on the surface of the base; a gear ring is fixed on the outer peripheral side of the swivel; a servo motor is fixedly installed on the surface of the base; a gear meshing with the gear ring is fixed on the output end of the servo motor; a guide ring is fixed on the inner peripheral side of the swivel; a number of first curved guide plates are evenly fixed on the inner peripheral side of the guide ring; a number of slide grooves are evenly opened on the surface of the base; a guide rod is fixed between the inner walls of the slide grooves; an L-shaped abutment plate that slides with the guide rod is slidably provided on the inner wall of the slide groove; an extrusion spring mounted on the guide rod is fixedly connected between the L-shaped abutment plate and the slide groove; an ear rod is fixed on the surface of the L-shaped abutment plate; and a ball head is fixed on the end of the ear rod.

[0014] The present invention is further configured as follows: a U-shaped frame is fixedly installed on the surface of the automatic guided vehicle; an L-shaped support plate is slidably provided on the U-shaped frame; forks are symmetrically fixed on the side surfaces of the L-shaped support plate; limit plates are symmetrically fixed on the side surfaces of the U-shaped frame; a mounting plate is fixed on the side surfaces of the U-shaped frame; a controller and a drive motor are fixedly installed on the surface of the mounting plate; a screw rod is fixed on the output end of the drive motor; an extension plate is fixed on the side surfaces of the L-shaped support plate to rotate with the screw rod thread.

[0015] The present invention is further configured as follows: angle steel is symmetrically fixed on the surface of the automatic guided vehicle; a guide plate is slidingly provided on the side surface of the angle steel; a guide ball is fixed on one end of the guide plate; a rotating rod is rotatably provided on the surface of the automatic guided vehicle; an annular plate is fixed on the circumferential side surface of the rotating rod; a second curved guide plate is symmetrically fixed on the circumferential side surface of the annular plate; a mounting seat is fixed on the other end of the guide plate; a universal wheel is installed on the bottom surface of the mounting seat; a connecting spring sleeved on the guide plate is fixedly connected between the mounting seat and the angle steel; an ear plate is fixed on the side surface of the extension plate; a fixing ball is fixed on the end of the ear plate; a vertical guide groove and a spiral groove adapted to the fixing ball are sequentially opened on the circumferential side surface of the rotating rod from top to bottom; the vertical guide groove and the spiral groove are connected to each other.

[0016] The advantages of the present invention are:

[0017] 1. The present invention installs a power rail portion between the starting point and the end point of the conveying route, controls the automatic guided vehicle to move close to the power rail portion, and controls the charging connection portion to descend and press against the sliding portion. Electric energy is transmitted through the transmitting coil on the power receiving portion, and received through the receiving coil on the charging connection portion. The movement of the automatic guided vehicle drives the sliding portion to move synchronously, thereby realizing that the automatic guided vehicle can work and charge at the same time, increasing the effective working time of the automatic guided vehicle, and thus improving the conveying efficiency of the automatic guided vehicle.

[0018] 2. The present invention controls the charging connection part to descend and press against the sliding part, controls the rotation of the swivel to drive the first curved guide plate to rotate synchronously to squeeze the corresponding ball head, thereby driving each group of L-shaped abutment plates to move toward the direction close to the receiving coil, thereby squeezing the wireless charging plate, so that the wireless charging plate moves adaptively inside the annular groove until the transmitting coil and the receiving coil are coaxially arranged, thereby improving the charging efficiency and further improving the transportation efficiency of the automatic guided vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an AGV conveying device of the present invention.

[0020] Figure 2 Schematic diagram of the structure of the automatic guided vehicle of the present invention.

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the structure from the right view angle.

[0022] Figure 4 For the present invention Figure 2 A structural diagram from another angle.

[0023] Figure 5 It is a structural schematic diagram of the power rail portion of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the sliding part of the present invention.

[0025] Figure 7 For the present invention Figure 6 A structural diagram from another angle.

[0026] Figure 8 For the present invention Figure 7 A magnified view of area A.

[0027] Figure 9 It is a structural schematic diagram of the sliding portion of the present invention from a front view perspective.

[0028] Figure 10 Schematic diagram of the structure of the charging connection part of the present invention.

[0029] Figure 11 For the present invention Figure 10 A structural diagram from another angle.

[0030] Figure 12 It is a structural diagram of the power receiving part of the present invention.

[0031] Figure 13 It is a structural schematic diagram of the power receiving part and sliding part assembly of the present invention.

[0032] Figure 14 It is a structural schematic diagram of the sliding portion and power rail portion assembly of the present invention.

[0033] Figure 15 For the present invention Figure 14 Magnified view of area B.

[0034] Figure 16 It is a structural schematic diagram of the charging connection part, sliding part and power connection part assembly of the present invention.

[0035] In the figure: 1. Automatic guided vehicle; 2. Power rail part; 3. Sliding part; 4. Mounting cavity; 5. Charging connection part; 6. Fixed frame; 7. Support plate; 8. L-shaped support plate; 9. Snap-in plate; 10. Conductive rail; 11. Fixed plate; 12. Conductive column; 13. I-shaped conductive wheel; 14. Power receiving part; 15. Receiving coil; 16. Transmitting coil; 17. Base; 18. Slide plate; 19. Wireless charging conversion plate; 20. Storage cavity; 21. Battery pack; 22. Wireless charging plate; 23. Inclined guide plate; 24. Insulating column; 25. Insulating wheel; 26. Protective cover; 27. Avoidance hole; 28. Through hole; 29. Upper cloth belt; 30. Lower cloth belt; 31. Chain tooth; 32. Pull tab; 33. Pull head; 34. Support ring; 35. L-shaped baffle; 36. Fixed ring; 37. Annular groove; 38 , stopper; 39, stopper; 40, return spring; 41, annular cavity; 42, swivel; 43, ring gear; 44, servo motor; 45, gear; 46, guide ring; 47, first curved guide plate; 48, slide; 49, guide rod; 50, L-shaped stopper; 51, extrusion spring; 52, ear rod; 53, ball head; 54, U-shaped frame; 55, L-shaped support plate; 56, fork; 57, limit plate; 58. Mounting plate; 59. Controller; 60. Drive motor; 61. Screw; 62. Extension plate; 63. Angle steel; 64. Guide plate; 65. Guide ball; 66. Rotating rod; 67. Annular plate; 68. Second curved guide plate; 69. Mounting seat; 70. Universal wheel; 71. Ear plate; 72. Fixed ball; 73. Vertical guide groove; 74. Spiral groove; 75. Connecting spring; 76. Insulated wire tube. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0038] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0039] For example 1, please refer to Figure 1-16 , the present invention provides the following technical solutions:

[0040] An AGV conveying device, specifically, includes an automatic guided vehicle 1; it also includes a power rail part 2 fixedly installed on the ground; a sliding part 3 is slidably provided on the power rail part 2; an installation cavity 4 is opened inside the automatic guided vehicle 1; a charging connection part 5 is provided inside the installation cavity 4; the power rail part 2 includes a fixed frame 6; a number of support plates 7 are evenly fixed between the inner walls of the fixed frame 6; L-shaped support plates 8 are symmetrically fixed on the sides of the two support plates 7; a clamping plate 9 is clamped between two adjacent L-shaped support plates 8; a conductive rail 10 is fixed on the side of the clamping plate 9; the sliding part 3 includes a fixed disk 11; two groups of conductive columns 12 are symmetrically fixed on the bottom surface of the fixed disk 11; an I-shaped conductive wheel 13 compatible with the conductive rail 10 is rotatably provided on the side surface of the conductive column 12; an electric energy receiving part 14 compatible with the charging connection part 5 is slidably provided above the fixed disk 11; the charging connection part 5 and the electric energy receiving part 14 are respectively installed with corresponding receiving coils 15 and transmitting coils 16.

[0041] Working principle of this embodiment 1:

[0042] A power rail portion 2 is installed between the starting point and the end point of the conveying route. By controlling the automatic guided vehicle 1 to move close to the power rail portion 2 and controlling the charging connection portion 5 to descend and press against the sliding portion 3, electric energy is emitted through the transmitting coil 16 on the power receiving portion and received through the receiving coil 15 on the charging connection portion 5. The movement of the automatic guided vehicle 1 drives the sliding portion 3 to move synchronously, thereby enabling the automatic guided vehicle 1 to work and charge at the same time, thereby increasing the effective working time of the automatic guided vehicle 1 and improving the conveying efficiency of the automatic guided vehicle 1.

[0043] For example 2, please refer to Figure 1-16, this embodiment 2 makes the following improvements on the basis of embodiment 1. Specifically, an electric push rod is fixedly installed on the top of the installation cavity 4; the charging connection part 5 includes a base 17; slides 18 that slide with the inner wall of the installation cavity 4 are symmetrically fixed to the sides of the base 17; a U-shaped plate fixedly connected to the two slides 18 is fixed to the telescopic end of the electric push rod; a wireless charging conversion plate 19 is fixed through the surface of the base 17; the receiving coil 15 is fixedly installed on the bottom surface of the wireless charging conversion plate 19; a storage cavity 20 is opened on the side of the automatic guided vehicle 1; a battery pack 21 is installed inside the storage cavity 20; and the wireless charging conversion plate 19 is electrically connected to the battery pack 21.

[0044] The power receiving unit 14 includes a wireless charging plate 22; an insulating wire tube 76 is fixedly installed on the top of the wireless charging plate 22; the transmitting coil 16 is fixedly installed on the top of the insulating wire tube 76; the transmitting coil 16 is connected to the output end of the wireless charging plate 22 via a cable; and the input end of the wireless charging plate 22 is respectively connected to the two conductive posts 12 via cables.

[0045] The fixed frame 6 is provided with openings on both opposite sides, and the opening surfaces are symmetrically fixed with inclined guide plates 23; the bottom surface of the fixed disk 11 is symmetrically fixed with insulating columns 24; the insulating columns 24 and the conductive columns 12 are symmetrically rotated with insulating wheels 25 adapted to the two adjacent inclined guide plates 23; and a protective cover 26 is fixed on the side surface of the conductive column 12.

[0046] A number of avoidance holes 27 are evenly opened on the top of the support plate 7; a through hole 28 is opened on the inner bottom surface of the avoidance hole 27; the ends of the two adjacent inclined guide plates 23 are fixedly connected to the upper cloth belt 29 and the lower cloth belt 30 respectively; the upper cloth belt 29 and the lower cloth belt 30 are both installed with sprockets 31; two pull tabs 32 are symmetrically fixed to the side of the protective cover 26; the ends of the pull tabs 32 are provided with pull heads 33 that are compatible with the two sprockets 31; the upper cloth belt 29 and the lower cloth belt 30 are both installed with upper and lower stops at both ends.

[0047] A support ring 34 is fixed to the surface of the fixed disk 11; a number of L-shaped baffles 35 are evenly fixed to the surface of the fixed disk 11; a fixing ring 36 coaxial with the support ring 34 is fixed between the ends of each L-shaped baffle 35; an annular groove 37 is formed between the fixing ring 36 and the support ring 34; the wireless charging plate 22 is slidably arranged in the annular groove 37; a push rod 38 is slidably arranged through the side of the L-shaped baffle 35; a stopper 39 is fixed to the end of the push rod 38; a return spring 40 mounted on the push rod 38 is fixedly connected between the stopper 39 and the L-shaped support plate 8; an annular cavity 41 is provided on the side surface of the wireless charging plate 22 to be plugged into the push rod 38.

[0048] A swivel 42 is rotatably provided on the surface of the base 17; a gear ring 43 is fixed to the outer peripheral side of the swivel 42; a servo motor 44 is fixedly installed on the surface of the base 17; a gear 45 meshing with the gear ring 43 is fixed to the output end of the servo motor 44; a guide ring 46 is fixed to the inner peripheral side of the swivel 42; a number of first curved guide plates 47 are evenly fixed to the inner peripheral side of the guide ring 46; a number of slide grooves 48 are evenly opened on the surface of the base 17; a guide rod 49 is fixed between the inner walls of the slide grooves 48; an L-shaped abutment plate 50 that slides with the guide rod 49 is slidably provided on the inner wall of the slide groove 48; an extrusion spring 51 mounted on the guide rod 49 is fixedly connected between the L-shaped abutment plate 50 and the slide groove 48; an ear rod 52 is fixed to the surface of the L-shaped abutment plate 50; a ball head 53 is fixed to the end of the ear rod 52.

[0049] Working principle of the second embodiment:

[0050] The power rail part 2 is installed between the starting point and the end point of the conveying route. Specifically, the fixing frame 6 is placed flatly on the conveying route, and the fastening bolts are passed through the through holes 28 and fixed to the conveying route surface. Then, the two sets of clip plates 9 are respectively inserted into the corresponding two adjacent L-shaped support plates 8, and the clip plates 9 are fixed to the L-shaped support plates 8 by fastening screws. One end of the conductive rails 10 on the two sets of clip plates 9 is respectively connected to the positive and negative poles of the power supply.

[0051] The insulating wheel 25 on the sliding part 3 can move freely on the corresponding inclined guide plate 23. The conductive rail 10 contacts the corresponding I-shaped conductive wheel 13 for conductivity, and is electrically connected to the wireless charging plate 22 through the conductive column 12 and the cable, so that the transmitting coil 16 transmits the electrical energy; the wireless charging conversion plate 19 is electrically connected to the battery pack 21, and the receiving coil 15 is used to receive the electrical energy emitted by the transmitting coil 16, thereby completing the wireless charging of the battery pack 21.

[0052] The best charging effect is achieved when the receiving coil 15 and the transmitting coil 16 are coaxially arranged. However, the AGV 1 may deviate during transportation, making it difficult to ensure that the AGV 1 can automatically and accurately position itself every time, so that the receiving coil 15 and the transmitting coil 16 are coaxially arranged. The following discusses how to solve this problem.

[0053] In the initial state, the return spring 40 is in a normal state (neither contracted nor extended), each group of push rods 38 extends into the annular cavity 41, and their ends are in contact with the inner circumferential side of the annular cavity 41, and the wireless charging plate 22 and the transmitting coil 16 are coaxially arranged with the fixing ring 36; under the elastic force of the extrusion spring 51, the L-shaped push plate 50 is driven to press against the inner wall of the slide groove 48.

[0054] First, the AGV 1 is controlled to move close to the power rail portion 2 until the charging connector 5 is placed above the sliding portion 3. The electric push rod is then controlled to start, driving the charging connector 5 to slide and descend along the inner wall of the mounting cavity 4 until the base 17 is pressed against the surface of the L-shaped baffle 35. At this time, the receiving coil 15 and the fixing ring 36 are not aligned with each other, that is, the receiving coil 15 and the transmitting coil 16 are not aligned with each other.

[0055] In order to increase the friction between the base 17 and the L-shaped baffle 35, anti-slip grooves can be provided on the bottom surface of the base 17 and the surface of the L-shaped baffle 35. Of course, any technical solution that can increase the friction between the two is acceptable.

[0056] The servo motor 44 is controlled and started to drive the gear 45 to rotate slowly, thereby driving the ring gear 43 and the rotating ring 42 to rotate slowly, so that the first curved guide plate 47 rotates slowly to contact and squeeze the corresponding ball head 53, so that the L-shaped abutment plate 50 slides along the corresponding slide groove 48 toward the direction close to the receiving coil 15, and the corresponding squeezing spring 51 is compressed. Since the receiving coil 15 and the fixing ring 36 are not coaxial, that is, the distance between each group of L-shaped abutment plates 50 and the wireless charging plate 22 is different, the L-shaped abutment plate closest to the wireless charging plate 22 is the same. The plate 50 first contacts and pushes, causing the wireless charging plate 22 to move along the annular groove 37, and then pushes inward in sequence. Each group of L-shaped abutment plates 50 successively pushes the wireless charging plate 22 to move in the annular groove 37. When the highest point of the first curved guide plate 47 contacts the ball head 53, the servo motor 44 is controlled to stop. At this time, the final positions of each group of L-shaped abutment plates 50 are consistent, so that the wireless charging plate 22 is coaxially arranged with the base 17, that is, the transmitting coil 16 is coaxially arranged with the receiving coil 15, completing the automatic coaxial positioning of the transmitting coil 16 and the receiving coil 15.

[0057] The automatic guided vehicle 1 is controlled to move along the specified route, and the sliding part 3 is driven to slide synchronously along the power rail part 2 through the charging connection part 5, so that the automatic guided vehicle 1 can be transported and charged at the same time, thereby increasing the effective working time of the automatic guided vehicle 1 and improving the transportation efficiency of the automatic guided vehicle 1; during the transportation process of the automatic guided vehicle 1, the two pull tabs 32 are driven to move synchronously, and the upper cloth belt 29 and the lower cloth belt 30 are opened and closed synchronously, ensuring that during the transportation and charging process of the automatic guided vehicle 1, the conductive rail 10 inside the fixed frame 6 is kept insulated and isolated from the outside world, thereby improving safety performance.

[0058] For example three, please refer to Figure 1-16, this third embodiment makes the following improvements on the basis of the second embodiment. Specifically, a U-shaped frame 54 is fixedly mounted on the surface of the automatic guided vehicle 1; an L-shaped support plate 55 is slidably arranged on the U-shaped frame 54; forks 56 are symmetrically fixed to the sides of the L-shaped support plate 55; limit plates 57 are symmetrically fixed to the sides of the U-shaped frame 54; a mounting plate 58 is fixed to the side of the U-shaped frame 54; a controller 59 and a drive motor 60 are fixedly mounted on the surface of the mounting plate 58; a screw rod 61 is fixed to the output end of the drive motor 60; an extension plate 62 is fixed to the side of the L-shaped support plate 55, which is threadably engaged with the screw rod 61.

[0059] Angle steels 63 are symmetrically fixed to the surface of the automatic guided vehicle 1; a guide plate 64 is slidingly provided on the side of the angle steel 63; a guide ball 65 is fixed to one end of the guide plate 64; a rotating rod 66 is rotatably provided on the surface of the automatic guided vehicle 1; an annular plate 67 is fixed to the side of the rotating rod 66; a second curved guide plate 68 is symmetrically fixed to the side of the annular plate 67; a mounting seat 69 is fixed to the other end of the guide plate 64; a universal wheel 70 is installed on the bottom of the mounting seat 69; a connecting spring 75 sleeved on the guide plate 64 is fixed between the mounting seat 69 and the angle steel 63; an ear plate 71 is fixed to the side of the extension plate 62; a fixed ball 72 is fixed to the end of the ear plate 71; a vertical guide groove 73 and a spiral groove 74 that are compatible with the fixed ball 72 are sequentially opened on the side of the rotating rod 66 from top to bottom; the vertical guide groove 73 and the spiral groove 74 are connected to each other.

[0060] Working principle of the third embodiment:

[0061] During the transportation of the automatic guided vehicle 1, the L-shaped support plate 55 is placed above the limit plate 57. At this time, the fixed ball 72 is placed inside the spiral groove 74, and the guide ball 65 is pressed against the side surface of the annular plate 67 under the elastic force of the connecting spring 75 (the connecting spring 75 is always in a stretched state). At this time, the two sets of universal wheels 70 are close to the automatic guided vehicle 1.

[0062] When the automatic guided vehicle 1 moves to the designated position, the drive motor 60 is controlled to start and drive the screw 61 to rotate, thereby driving the extension plate 62 together with the L-shaped support plate 55 to slide and rise along the U-shaped frame 54, driving the material to rise to the external transfer platform for unloading. As the goods are lifted, the center of gravity of the entire device is increased, reducing the stability of unloading. During this process, the automatic guided vehicle 1 stops, and the fixed ball 72 slides from the spiral groove 74 into the vertical guide groove 73. When the fixed ball 72 slides in the spiral groove 74, it drives the rotating rod 66 to rotate 90°, thereby driving the annular plate 67 to rotate 90°, and the second curved guide plate 68 rotates and squeezes the corresponding guide ball 65, so that the guide plate 64 slides along the angle steel 63 in the direction away from the annular plate 67, so that the two universal wheels 70 are away from the automatic guided vehicle 1, increasing the supporting area of the automatic guided vehicle 1 and improving the stability of the automatic guided vehicle 1 in unloading; when the fixed ball 72 slides in the vertical guide groove 73, the rotating rod 66 does not rotate, that is, the subsequent lifting of the cargo, the universal wheel 70 has reached the final state of expansion and will not move accordingly.

[0063] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0064] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0065] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0066] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0067] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An AGV conveying device, comprising an automatic guided vehicle (1); characterized in that: It also includes a power rail portion (2) fixedly mounted on the ground; a sliding portion (3) is slidably provided on the power rail portion (2); a mounting cavity (4) is provided inside the automatic guided vehicle (1); a charging connection portion (5) is provided inside the mounting cavity (4); The power rail portion (2) comprises a fixed frame (6); a plurality of support plates (7) are evenly fixed between the inner walls of the fixed frame (6); L-shaped support plates (8) are symmetrically fixed to the sides of two support plates (7); a clamping plate (9) is provided between two adjacent L-shaped support plates (8); a conductive rail (10) is fixed to the side of the clamping plate (9); The sliding portion (3) includes a fixed disk (11); two groups of conductive columns (12) are symmetrically fixed through the bottom surface of the fixed disk (11); and I-shaped conductive wheels (13) adapted to the conductive rails (10) are rotatably provided on the circumferential side surfaces of the conductive columns (12); An electric energy receiving portion (14) adapted to the charging connection portion (5) is slidably provided above the fixed disk (11); and a corresponding receiving coil (15) and transmitting coil (16) are respectively installed inside the charging connection portion (5) and the electric energy receiving portion (14).

2. The AGV conveying device according to claim 1, characterized in that: An electric push rod is fixedly installed on the top of the installation cavity (4); the charging connection part (5) includes a base (17); a slide plate (18) that slides with the inner wall of the installation cavity (4) is symmetrically fixed on the side surface of the base (17); a U-shaped plate fixedly connected to the two slide plates (18) is fixed on the telescopic end of the electric push rod; a wireless charging conversion plate (19) is fixed through the surface of the base (17); the receiving coil (15) is fixedly installed on the bottom surface of the wireless charging conversion plate (19); a storage cavity (20) is opened on the side of the automatic guided vehicle (1); a battery pack (21) is installed inside the storage cavity (20); and the wireless charging conversion plate (19) is electrically connected to the battery pack (21).

3. The AGV conveying device according to claim 2, characterized in that: The power receiving part (14) includes a wireless charging plate (22); an insulating wire tube (76) is fixedly installed on the top of the wireless charging plate (22); the transmitting coil (16) is fixedly installed on the top of the insulating wire tube (76); the transmitting coil (16) is connected to the output end of the wireless charging plate (22) through a cable; and the input end of the wireless charging plate (22) is respectively connected to the two conductive columns (12) through cables.

4. The AGV conveying device according to claim 3, characterized in that: The fixed frame (6) is provided with openings on both opposite sides, and the opening surfaces are symmetrically fixed with inclined guide plates (23); the bottom surface of the fixed disk (11) is symmetrically penetrated and fixed with insulating columns (24); the insulating columns (24) and the conductive columns (12) are symmetrically rotated and provided with insulating wheels (25) adapted to the two adjacent inclined guide plates (23); and the peripheral side surfaces of the conductive columns (12) are fixed with protective covers (26).

5. The AGV conveying device according to claim 4, characterized in that: The top of the support plate (7) is evenly provided with a plurality of avoidance holes (27); the inner bottom surface of the avoidance hole (27) is provided with a through hole (28); the ends of the two adjacent inclined guide plates (23) are respectively fixedly connected with an upper cloth belt (29) and a lower cloth belt (30); the upper cloth belt (29) and the lower cloth belt (30) are both provided with chain teeth (31); two pull tabs (32) are symmetrically fixed on the side of the protective cover (26); the ends of the pull tab (32) are provided with a pull head (33) adapted to the two chain teeth (31); the ends of the upper cloth belt (29) and the lower cloth belt (30) are respectively provided with an upper stop and a lower stop.

6. The AGV conveying device according to claim 5, characterized in that: A support ring (34) is fixed on the surface of the fixed disk (11); a plurality of L-shaped baffles (35) are evenly fixed on the surface of the fixed disk (11); a fixed ring (36) coaxial with the support ring (34) is fixed between the ends of each of the L-shaped baffles (35); an annular groove (37) is formed between the fixed ring (36) and the support ring (34); the wireless charging plate (22) is slidably arranged in the annular groove (37); A push rod (38) is slidably provided on the side of the L-shaped baffle (35); a stopper (39) is fixed to the end of the push rod (38); a return spring (40) sleeved on the push rod (38) is fixedly connected between the stopper (39) and the L-shaped support plate (8); and an annular cavity (41) is provided on the side surface of the wireless charging plate (22) for plugging and matching with the push rod (38).

7. The AGV conveying device according to claim 6, characterized in that: A rotating ring (42) is rotatably provided on the surface of the base (17); a gear ring (43) is fixed to the outer peripheral side of the rotating ring (42); a servo motor (44) is fixedly installed on the surface of the base (17); a gear (45) meshing with the gear ring (43) is fixed to the output end of the servo motor (44); A guide ring (46) is fixed on the inner side surface of the rotating ring (42); a plurality of first curved guide plates (47) are evenly fixed on the inner side surface of the guide ring (46); a plurality of slide grooves (48) are evenly opened on the surface of the base (17); a guide rod (49) is fixed between the inner walls of the slide grooves (48); an L-shaped abutment plate (50) that slides with the guide rod (49) is slidably provided on the inner wall of the slide groove (48); an extrusion spring (51) that is sleeved on the guide rod (49) is fixedly connected between the L-shaped abutment plate (50) and the slide groove (48); An ear rod (52) is fixed on the surface of the L-shaped abutment plate (50); and a ball head (53) is fixed on the end of the ear rod (52).

8. The AGV conveying device according to claim 7, characterized in that: A U-shaped frame (54) is fixedly mounted on the surface of the automatic guided vehicle (1); an L-shaped support plate (55) is slidably mounted on the U-shaped frame (54); a fork (56) is symmetrically fixed to the side of the L-shaped support plate (55); a limit plate (57) is symmetrically fixed to the side of the U-shaped frame (54); a mounting plate (58) is fixed to the side of the U-shaped frame (54); a controller (59) and a drive motor (60) are fixedly mounted on the surface of the mounting plate (58); a screw rod (61) is fixed to the output end of the drive motor (60); an extension plate (62) is fixed to the side of the L-shaped support plate (55) and is threadedly engaged with the screw rod (61).

9. The AGV conveying device according to claim 8, characterized in that: An angle steel (63) is symmetrically fixed on the surface of the automatic guided vehicle (1); a guide plate (64) is slidingly provided on the side of the angle steel (63); a guide ball (65) is fixed on one end of the guide plate (64); a rotating rod (66) is rotatably provided on the surface of the automatic guided vehicle (1); an annular plate (67) is fixed on the peripheral side of the rotating rod (66); a second curved guide plate (68) is symmetrically fixed on the peripheral side of the annular plate (67); a mounting seat (69) is fixed on the other end of the guide plate (64); a universal wheel (70) is installed on the bottom surface of the mounting seat (69); a connecting spring (75) sleeved on the guide plate (64) is fixedly connected between the mounting seat (69) and the angle steel (63); An ear plate (71) is fixed to the side of the extension plate (62); a fixed ball (72) is fixed to the end of the ear plate (71); a vertical guide groove (73) and a spiral groove (74) adapted to the fixed ball (72) are sequentially opened on the peripheral side of the rotating rod (66) from top to bottom; the vertical guide groove (73) and the spiral groove (74) are connected to each other.

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