Heavy load towing type AGV

Abstract

The application relates to the AGV technical field and discloses a heavy-load traction type AGV, which comprises a bottom plate and a sliding plate. A lower sliding groove I is arranged on the top surface of the left part of the inside of the bottom plate, a ball is movably arranged in the lower sliding groove I, a lower sliding groove II is arranged in the middle of the bottom plate, a baffle is fixedly connected to the left bottom surface of the lower sliding groove II, an upper sliding groove I is arranged on the bottom surface of the left part of the inside of the sliding plate, an upper sliding groove II is arranged on the bottom surface of the middle of the sliding plate, a spring is fixedly connected to the left side surface of the upper sliding groove II, a pressing plate is fixedly connected to the right side surface of the upper sliding groove II, and an air bag is fixedly connected to the left side surface of the pressing plate. The ball slides in the upper and lower sliding grooves I through the inertia of goods, the pressing plate is moved by the sliding plate to extrude the air bag, the movement of the sliding plate stretches the spring, the potential energy of the spring and the gas in the air bag are used to buffer the inertia of the goods, and the probability of the goods being laterally overturned due to inertia is reduced.

Description

Technical Field

[0001] This invention relates to the field of AGV technology, specifically to a heavy-duty traction AGV. Background Technology

[0002] AGV stands for Automated Guided Vehicle. Equipped with electromagnetic or optical automatic guidance devices, it can travel along a prescribed guidance path. It is an indispensable handling vehicle in the current logistics warehousing and handling industry, with advantages such as convenience and speed.

[0003] When existing AGV transport vehicles are in use, they need to brake in time when they encounter obstacles or stop transporting goods. Since the normal operating speed of AGVs is between 10 and 60 kilometers per hour, braking at this speed will cause the heavy objects on the pallet to be subject to their own inertia, which can easily cause them to tip over. Secondly, when the AGV is transporting some tall goods, its overall center of gravity is high, which can easily cause the center of gravity to be unstable during operation, resulting in the goods swaying and even affecting the normal transport of the tractor. Summary of the Invention

[0004] In view of the shortcomings of existing AGVs mentioned in the background art, the present invention provides a heavy-duty traction AGV, which has the advantages of reducing the probability of cargo tipping over due to inertia, increasing the stability of the vehicle body during operation, and buffering vibrations during operation, thus solving the technical problems mentioned in the background art.

[0005] The present invention provides the following technical solution: a heavy-duty traction AGV, comprising a base plate and a slide plate. A downward sliding groove I is formed on the top surface of the left side inside the base plate. A ball bearing is movably placed inside the downward sliding groove I. A downward sliding groove II is formed in the middle of the base plate. A baffle is fixedly welded to the bottom surface of the downward sliding groove II on the left side. An upper sliding groove I is formed on the bottom surface of the left side inside the slide plate. An upper sliding groove II is formed on the bottom surface of the middle part of the slide plate. A spring is fixedly welded to the left side of the upper sliding groove II. A pressure plate is fixedly welded to the right side of the upper sliding groove II. An air outlet groove is formed inside the pressure plate. An air bag is fixedly connected to the left side of the pressure plate.

[0006] Preferably, a movable cavity is provided inside the slide plate and on the upper side of the upper slide groove II. A slider is slidably connected to the left side of the movable cavity. A metal ball is movably placed inside the movable cavity and on the right side of the slider. A through groove is provided inside the slide plate and between the upper slide groove II and the movable cavity.

[0007] Preferably, when the slide plate is not sliding, a cavity is formed between the lower slide groove I and the upper slide groove I, and the ball is located in the cavity formed by the lower slide groove I and the upper slide groove I, and the ball slides in contact with the bottom surface of the lower slide groove I and the top surface of the upper slide groove I.

[0008] Preferably, when the slide plate is not sliding, a cavity is formed between the lower slide groove II and the upper slide groove II, the right end of the spring is fixedly connected to the upper part of the left side of the baffle, the left side of the airbag is fixedly connected to the right side of the baffle, and the airbag is connected to the left opening of the air outlet groove.

[0009] Preferably, the bottom opening of the through groove is connected to the upper opening of the air outlet groove, the upper opening of the through groove is connected to the movable cavity, and the metal ball is laid flat inside the movable cavity when the slider is not moved.

[0010] Preferably, a sleeve is movably fitted onto the outer surface of the airbag near the pressure plate, a connecting rod is fixedly welded to the middle of the top surface of the sleeve, and a partition is fixedly welded to the top of the connecting rod.

[0011] Preferably, the top end of the connecting rod extends into the interior of the movable cavity, the partition is located inside the movable cavity, the sliding plate has a hole for the connecting rod to slide inside, the connecting rod is offset from the through groove, and the connecting rod is located in front of the through groove.

[0012] The present invention has the following beneficial effects:

[0013] 1. This invention utilizes the inertia of the cargo during vehicle braking to cause the slide plate to move the pallet, resulting in the ball bearings sliding inside the upper and lower slide plates I. Simultaneously, the slide plate moves the pressure plate, compressing the airbag. Furthermore, the movement of the slide plate stretches the spring. At this point, the potential energy of the spring and the gas inside the airbag buffer the inertia of the cargo, thereby reducing the probability of the cargo tipping over due to inertia.

[0014] 2. This invention, through the design of upper and lower sliding grooves II, ball bearings, baffles, pressure plates, airbags, springs, movable chambers, sliders, and metal balls, allows the slide plate to slide under the inertia of the cargo. When the slide plate slides due to the inertia of the cargo, the airbag is compressed by the pressure plate, causing the gas inside the airbag to enter the movable chamber through the air outlet and through slots. This air pressure then propels the slider to move within the movable chamber. The movement of the slider causes the metal balls inside the movable chamber to move and converge to one side of the movable chamber, causing the center of gravity on the slide plate to shift to the right side of the slide plate. This neutralizes the inertia of the cargo and reduces the impact of inertia on the cargo. Furthermore, during normal operation, the flattening of the metal balls within the movable chamber lowers the overall center of gravity of the slide plate, increasing the stability of the AGV when carrying cargo.

[0015] 3. This invention, through the design of a movable cavity, slider, metal ball, sleeve, connecting rod, and partition, utilizes the vibrations of the AGV body during operation to cause the metal ball in the movable cavity to bounce. The bouncing metal ball directly impacts the bottom surface of the partition, causing the partition to move upward. At this time, the partition drives the connecting rod and sleeve to move upward. Since the sleeve is fitted onto the outer surface of the airbag, the upward movement of the sleeve causes the airbag to deform, thereby buffering the vibrations of the AGV body during operation, increasing the stability of the vehicle body, and reducing the impact of vehicle body vibrations on the cargo. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall internal three-dimensional structure of the present invention;

[0018] Figure 3 For the present invention Figure 2 Schematic diagram of the moving state structure of the middle slider;

[0019] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the active cavity of the present invention;

[0020] Figure 5 This is a three-dimensional structural diagram of the sleeve and connecting rod of the present invention.

[0021] In the diagram: 1. Base plate; 11. Lower slide groove I; 12. Ball bearing; 13. Lower slide groove II; 14. Baffle; 2. Rotating shaft; 3. Traveling wheel; 4. Slide plate; 41. Upper slide groove I; 42. Upper slide groove II; 43. Spring; 44. Pressure plate; 441. Air outlet groove; 45. Movable cavity; 46. Slider; 47. Metal ball; 48. Airbag; 481. Sleeve; 482. Connecting rod; 483. Partition; 49. Through groove; 5. Tray. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0023] Please see Figures 1-4 A heavy-duty traction AGV includes a base plate 1, with rotating shafts 2 movably sleeved on both the front and rear sides inside the base plate 1. Both ends of the two rotating shafts 2 are fixedly sleeved with travel wheels 3. A slide plate 4 is slidably connected to the top surface of the base plate 1, and a tray 5 is fixedly installed on the top surface of the slide plate 4.

[0024] Please see Figures 1-4 A sliding groove I11 is formed on the top left side of the interior of the base plate 1. A ball bearing 12 is movably placed inside the sliding groove I11. A sliding groove II13 is formed in the middle of the interior of the base plate 1. A baffle 14 is fixedly welded to the bottom left side of the sliding groove II13. An upper sliding groove I41 is formed on the bottom left side of the interior of the slide plate 4. When the slide plate 4 is not sliding, a cavity is formed between the sliding groove I11 and the upper sliding groove I41. The ball bearing 12 is located in the cavity formed by the sliding groove I11 and the upper sliding groove I41. The ball bearing 12 is in contact with the bottom surface of the sliding groove I11. The upper slide groove I41 slides in contact with the top surface of the upper slide groove 12, facilitating the rolling of the ball 12 within the cavity formed by the lower slide groove I11 and the upper slide groove I41, thereby causing the slide plate 4 to slide. An upper slide groove II42 is provided on the bottom surface of the middle part of the slide plate 4. A spring 43 is fixedly welded to the left side of the upper slide groove II42, and a pressure plate 44 is fixedly welded to the right side of the upper slide groove II42. An air vent 441 is provided inside the pressure plate 44. A movable cavity 45 is provided inside the slide plate 4 and above the upper slide groove II42. The movable cavity 45 is located on the left side of the slide plate. A slider 46 is movably connected. Inside the movable cavity 45 and located to the right of the slider 46, a metal ball 47 is movably placed. An airbag 48 is fixedly connected to the left side of the pressure plate 44. When the slide plate 4 is not sliding, a cavity is formed between the lower slide groove II 13 and the upper slide groove II 42. The right end of the spring 43 is fixedly connected to the upper part of the left side of the baffle 14, so that the spring 43 can be stretched when the slide plate 4 moves. The left side of the airbag 48 is fixedly connected to the right side of the baffle 14. The airbag 48 is connected to the left opening of the air outlet groove 441. To ensure that the gas inside the airbag 48 is transmitted, a through groove 49 is provided inside the slide plate 4 and between the upper slide groove II 42 and the movable cavity 45. The bottom opening of the through groove 49 is connected to the upper opening of the air outlet groove 441, and the upper opening of the through groove 49 is connected to the movable cavity 45, so that the gas inside the airbag 48 can be transmitted into the movable cavity 45, thereby pushing the slider 46 to move. When the slider 46 is not moving, the metal ball 47 is laid flat inside the movable cavity 45, ensuring that the center of gravity of the slide plate 4 drops after the metal ball 47 is laid flat.

[0025] Please see Figures 1-4 When the AGV vehicle stops, the inertia of the cargo is used, and through the cooperation between the ball bearing 12 and the lower sliding groove I11 and the upper sliding groove I41, the slide plate 4 causes the pallet 5 to move to the left. At the same time, the slide plate 4 causes the pressure plate 44 to move to the left, so that the pressure plate 44 squeezes the airbag 48. The gas in the airbag 48 is transmitted through the air outlet groove 441 into the through groove 49, and finally into the active cavity 45. At the same time, the left side wall of the upper sliding groove II42 stretches the spring 43. At this time, the potential energy of the spring 43 and the compression of the airbag 48 are used to buffer the inertia of the cargo, reducing the probability of the cargo tipping over due to inertia.

[0026] Secondly, the gas entering the active cavity 45 will push the slider 46 to the right, and the movement of the slider 46 will push the metal balls 47 to the right and stack them together. Since all the metal balls 47 have moved to the right side of the active cavity 45, the center of gravity of the slide plate 4 will shift to the right, thereby neutralizing the inertia of the goods and reducing the impact of the inertia of the goods on the AGV vehicle transportation. Finally, when the AGV vehicle is running normally, since the slider 46 is on the left side of the active cavity 45, the metal balls 47 are laid flat on the bottom surface of the active cavity 45, causing the overall center of gravity of the slide plate 4 to shift downward, which in turn causes the overall center of gravity of the vehicle to shift downward during operation, improving the stability of the AGV vehicle during transportation.

[0027] The working principle of the usage method of Embodiment 1 of the present invention is as follows:

[0028] First, the goods are placed on the pallet 5. The control system is activated, causing the base plate 1 to move the slide plate 4 and the pallet 5 using the travel wheels 3. When the base plate 1 brakes, the sliding plate 4 moves through the cooperation between the ball bearing 12 and the lower sliding groove I 111 and the upper sliding groove I 41. The sliding plate 4 moves the pressure plate 44, which compresses the airbag 48. At the same time, the left side wall of the upper sliding groove II 42 stretches the spring 43, thereby neutralizing the inertia of the goods. Second, after the airbag 48 is compressed, the gas enters the active cavity 45 through the air outlet groove 441 and the through groove 49, which in turn pushes the slider 46 to move. The slider 46 pushes the metal ball 47 to the right, causing the center of gravity of the slide plate 4 to shift to the right, thereby reducing the impact of inertia on the goods. Example 2

[0029] Based on Example 1, please refer to Figures 1-5 A sleeve 481 is movably sleeved on the outer surface of the airbag 48 near the pressure plate 44. A connecting rod 482 is fixedly welded to the middle of the top surface of the sleeve 481. A partition plate 483 is fixedly welded to the top of the connecting rod 482. The top of the connecting rod 482 extends into the interior of the movable cavity 45. The partition plate 483 is located inside the movable cavity 45. A hole is opened in the interior of the slide plate 4 for the connecting rod 482 to slide, so that the metal ball 47 can impact the bottom surface of the partition plate 483 when it is bumped and bounced, thereby causing the partition plate 483 to move upward. The connecting rod 482 is offset from the through groove 49, and the connecting rod 482 is located in front of the through groove 49.

[0030] Please see Figures 1-5When the vehicle is transporting goods and encounters bumps, the bumps cause the metal ball 47 in the movable cavity 45 to bounce. The bounced metal ball 47 impacts the bottom surface of the partition 483, causing the partition 483 to move upward. The partition 483 then drives the connecting rod 482 to move upward, which in turn drives the sleeve 481 to move upward. The upward-moving sleeve 481 stretches the airbag 48, causing it to deform. The deformation of the airbag 48 buffers the bumps during vehicle operation, reducing the impact of bumps on the operation of goods and increasing the stability of the AGV vehicle.

[0031] The working principle of the usage method of Embodiment 2 of the present invention is as follows:

[0032] When the AGV is transporting normally and encounters bumps, the bumps of the base plate 1 cause the metal ball 47 in the movable cavity 45 to jump, causing the metal ball 47 to impact the bottom surface of the partition plate 483, causing the partition plate 483 to move upward. The partition plate 483 uses the connecting rod 482 to drive the sleeve 481 to move upward, and then the sleeve 481 stretches the airbag 48, causing the airbag 48 to deform, thus buffering the bumps when the AGV is running.

Claims

1. A heavy-duty traction AGV, comprising a base plate (1) and a sliding plate (4), characterized in that: The bottom plate (1) has a sliding groove I (11) on the top left side inside. A ball bearing (12) is movably placed inside the sliding groove I (11). The bottom plate (1) has a sliding groove II (13) in the middle. A baffle (14) is fixedly connected to the bottom left side of the sliding groove II (13). The bottom left side of the slide plate (4) has an upper sliding groove I (41). The bottom middle of the slide plate (4) has an upper sliding groove II (42). A spring (43) is fixedly connected to the left side of the upper sliding groove II (42). A pressure plate (44) is fixedly connected to the right side of the upper sliding groove II (42). An air outlet groove (441) is opened inside the pressure plate (44). An air bag (48) is fixedly connected to the left side of the pressure plate (44). The sliding plate (4) has a movable cavity (45) inside and above the upper sliding groove II (42). A slider (46) is slidably connected to the left side of the movable cavity (45). A metal ball (47) is movably placed inside the movable cavity (45) and to the right of the slider (46). A through groove (49) is provided inside the sliding plate (4) and between the upper sliding groove II (42) and the movable cavity (45). A sleeve (481) is movably sleeved on the outer surface of the airbag (48) near the pressure plate (44). A connecting rod (482) is fixedly connected to the middle of the top surface of the sleeve (481), and a partition plate (483) is fixedly connected to the top of the connecting rod (482). The top end of the connecting rod (482) extends into the interior of the movable cavity (45), the partition (483) is located inside the movable cavity (45), the interior of the sliding plate (4) is provided with a hole for the connecting rod (482) to slide, the connecting rod (482) is offset from the through groove (49), and the connecting rod (482) is located in front of the through groove (49).

2. The heavy-duty traction AGV according to claim 1, characterized in that: When the slide plate (4) is not sliding, a cavity is formed between the lower slide groove I (11) and the upper slide groove I (41). The ball (12) is in the cavity formed by the lower slide groove I (11) and the upper slide groove I (41). The ball (12) slides in contact with the bottom surface of the lower slide groove I (11) and the top surface of the upper slide groove I (41).

3. The heavy-duty traction AGV according to claim 1, characterized in that: When the slide plate (4) is not sliding, a cavity is formed between the sliding groove II (13) and the upper sliding groove II (42). The right end of the spring (43) is fixedly connected to the upper part of the left side of the baffle (14). The left side of the airbag (48) is fixedly connected to the right side of the baffle (14). The airbag (48) is connected to the left opening of the air outlet groove (441).

4. The heavy-duty traction AGV according to claim 1, characterized in that: The bottom opening of the through groove (49) is connected to the upper opening of the air outlet groove (441), and the upper opening of the through groove (49) is connected to the movable cavity (45). When the slider (46) is not moving, the metal ball (47) is flat inside the movable cavity (45).

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