Holding fork device of AGV (Automatic Guided Vehicle)

Abstract

The utility model discloses a holding fork device of an AGV (Automatic Guided Vehicle), which comprises a holding fork mounting rack, and the top of the holding fork mounting rack is provided with a holding fork telescopic mechanism capable of stretching out and drawing back above a material box; the holding fork telescopic mechanism is provided with a shifting tooth motor, and an output shaft of the shifting tooth motor is connected with shifting teeth capable of clamping the upper edge of the material box in a rotating mode. The holding fork telescopic mechanism can be inserted into the rear portion of the material box from the upper portion of the material box, the upper edge of the material box is clamped through the shifting teeth, the reserved gap for placing the material box can be reduced, and the space utilization rate of the material box placing frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent logistics, in particular to a fork-holding device of an AGV vehicle. Background Art

[0002] Patent No. 202110326668.5 is an AGV for conveying material boxes, including a multi-layer shelf arranged on the AGV body, the shelf having two vertical brackets, a guide mechanism that can be raised and lowered is arranged along the vertical bracket, a lifting motor for driving the guide mechanism to move up and down is fixed to the upper end of the vertical bracket, and the lifting motor is connected to the guide mechanism through a lifting transmission belt arranged in the vertical bracket. The guide mechanism is connected to a fork mounting frame, and the fork mounting frame is provided with a rotatable silo mounting seat through a first rotating bearing. The silo mounting seat is fixed with a silo bottom plate, and fork mounting plates are fixed on both sides of the silo bottom plate. The fork mounting plate is installed with a fork telescopic mechanism. A fork telescopic drive motor that drives the fork telescopic mechanism is provided on the inner side of the material seat bottom plate. The fork telescopic mechanism in the prior art is located on both sides of the first mounting plate, which makes the width of the AGV fork device wider. When picking up and placing material boxes, sufficient gaps must be left between each material box to facilitate the fork device to extend from both sides of the material box, resulting in a reduction in the number of material boxes that can be stacked on the material placement frame, and the space utilization rate needs to be improved. Summary of the invention

[0003] The utility model aims to solve the technical problem that the existing fork-holding device takes and places the material box from both sides, so that a large gap needs to be left when the material boxes are stacked, resulting in low space utilization. The utility model provides a fork-holding device for an AGV vehicle, which can take and place the material box from the top of the material box, reduce the gap when the material boxes are stacked, and improve the space utilization of the material box rack.

[0004] The technical solution adopted by the utility model to solve the above technical problems is: a fork holding device of an AGV vehicle, including a fork holding mounting frame, the top of the fork holding mounting frame is provided with a fork holding telescopic mechanism that can telescope above the material box; the fork holding telescopic mechanism is provided with a gear shifting motor, and the output shaft of the gear shifting motor is connected to a gear shifting tooth that can rotate to clamp the upper edge of the material box.

[0005] In order to optimize the above technical solution, the utility model also includes the following improved technical solution.

[0006] The above-mentioned fork mounting frame includes four support frames, and the upper ends of the four support frames are connected to two first beams and two second beams; the lower ends of the four support frames are connected to two third beams and two fourth beams; the first beam and the second beam, the third beam and the fourth beam respectively form a frame structure.

[0007] The above-mentioned fork telescopic mechanism includes two sprocket mounting plates installed on the first crossbeam, and a rotatable first sprocket and a second sprocket are respectively installed on both sides of each sprocket mounting plate, and a chain is provided between the first sprocket and the second sprocket; the chain is fixedly connected to the first telescopic seat through a chain connecting plate.

[0008] The first sprockets on the two sprocket mounting plates are fixed at both ends of the driving shaft, the middle part of the driving shaft is connected with the fork-holding motor through a gear box, and the gear box is fixedly mounted on the second crossbeam at the rear end.

[0009] A fork mounting plate is provided below the above-mentioned sprocket mounting plate, and the fork mounting plate is fixedly connected to the support frame; a first telescopic guide rail is provided in the length direction of the fork mounting plate, and the first telescopic seat can be slidably installed on the first telescopic guide rail.

[0010] The first telescopic seat is provided with a second telescopic guide rail, on which a second telescopic seat capable of sliding forward and backward is provided; a gear shifting motor is installed on the second telescopic seat, with the gear shifting located at the front end of the second telescopic seat; and a limit plate is provided at the rear end of the second telescopic seat.

[0011] The first telescopic seat is provided with a first mounting groove and a second mounting groove at both ends thereof, and the first synchronous wheel mounting seat is installed in the first mounting groove located at the rear end of the first telescopic seat, and the first synchronous wheel mounting seat is installed in the first synchronous wheel mounting seat; the second synchronous wheel mounting seat is installed in the second mounting groove located at the front end of the first telescopic seat, and the second synchronous wheel mounting seat is installed in the second synchronous wheel mounting seat.

[0012] One end of the first synchronous belt is fixedly connected to the fork mounting frame, the middle part is wound around the first synchronous wheel, and the other end of the first synchronous belt is fixedly connected to the front end of the second telescopic seat; one end of the second synchronous belt is fixedly connected to the fork mounting frame, the middle part is wound around the second synchronous wheel, and the other end of the second synchronous belt is fixedly connected to the rear end of the second telescopic seat.

[0013] Compared with the prior art, the fork holding device of the utility model can be inserted from the top of the material box to the rear of the material box, and the upper edge of the material box can be clamped by the shifting teeth, which can reduce the reserved gap for placing the material box and improve the space utilization rate of the material box placement rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0015] Figure 2 It is an exploded diagram of the fork-holding telescopic mechanism.

[0016] Figure 3 It is an exploded diagram of the dynamic drag box mechanism. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.

[0018] Figures 1 to 3 Shown is a schematic structural diagram of the utility model.

[0019] The accompanying drawings are marked as follows: support frame 1, first crossbeam 2, second crossbeam 3, third crossbeam 4, fourth crossbeam 5, sprocket mounting plate 6, first sprocket 7, second sprocket 8, chain 9, chain connecting plate 10, first telescopic seat 11, first mounting groove 11a, second mounting groove 11b, drive shaft 12, gear box 13, fork motor 14, fork mounting plate 15, first telescopic guide rail 16, first synchronous wheel mounting seat 17, second synchronous wheel mounting seat 18, second telescopic guide rail 19, second telescopic seat 20, shifting tooth 21, limiting plate 22, first fixed block 23, second fixed block 24, guide rod 25, first slider 26, second slider 27, silo bottom plate 28, spring 29, buffer block 30, limiting part 31, first synchronous belt 32, second synchronous belt 33.

[0020] The utility model discloses a fork holding device of an AGV vehicle, comprising a fork holding mounting frame, a dynamic box dragging mechanism for placing a material box is arranged at the lower part of the fork holding mounting frame, and a fork holding telescopic mechanism is arranged at the top of the fork holding mounting frame.

[0021] The fork mounting frame includes four support frames 1, and the upper ends of the four support frames 1 are connected with two first beams 2 and two second beams 3, and the two first beams 2 and the two second beams 3 form a square frame. The lower ends of the four support frames 1 are connected with two third beams 4 and two fourth beams 5, and the two third beams 4 and the two fourth beams 5 form a square frame.

[0022] The fork-holding telescopic mechanism comprises two sprocket mounting plates 6 respectively mounted on the two first beams 2, and a rotatable first sprocket 7 and a second sprocket 8 are respectively mounted on both sides of each sprocket mounting plate 6, and a chain 9 is arranged between the first sprocket 7 and the second sprocket 8. The chain 9 is fixedly connected to the first telescopic seat 11 through a chain connecting plate 10. The first sprockets 7 on the two sprocket mounting plates 6 are fixed to the two ends of the driving shaft 12, and the middle part of the driving shaft 12 is connected to the fork-holding motor 14 through a gear box 13, and the gear box 13 is fixedly mounted on the second beam 3 at the rear end.

[0023] A fork mounting plate 15 is provided below each sprocket mounting plate 6, and the fork mounting plate 15 is fixed on the support frame 1. A first telescopic guide rail 16 is provided in the length direction of the fork mounting plate 15, and a first telescopic seat 11 that can slide forward and backward is provided on the first telescopic guide rail 16. The first telescopic seat 11 is provided with a first mounting groove 11a and a second mounting groove 11b at both ends, respectively. A first synchronous wheel mounting seat 17 is installed in the first mounting groove 11a located at the rear end of the first telescopic seat 11, and a first synchronous wheel is installed in the first synchronous wheel mounting seat 17. A second synchronous wheel mounting seat 18 is installed in the second mounting groove 11b located at the front end of the first telescopic seat 11, and a second synchronous wheel is installed in the second synchronous wheel mounting seat 18.

[0024] The first telescopic seat 11 is provided with a second telescopic guide rail 19, and a second telescopic seat 20 capable of sliding forward and backward is provided on the second telescopic guide rail 19. The second telescopic seat 20 is provided with a gear shifting motor, and the output shaft of the gear shifting motor is connected with a gear shifting 21, which is located at the front end of the second telescopic seat 20. A limiting plate 22 is provided at the rear end of the second telescopic seat 20.

[0025] One end of the first synchronous belt 32 is fixed to the first crossbeam 2 at the front end, and the middle part is wound around the first synchronous wheel. The other end of the first synchronous wheel is fixed to the front side of the second telescopic seat 20. When the first telescopic seat 11 moves forward, the second telescopic seat 20 is pulled forward by the first synchronous belt 32. The first telescopic seat 11 and the second telescopic seat 20 are inserted from the top of the material box into the storage compartment of the material placement frame.

[0026] Similarly, one end of the second synchronous belt 33 is fixed to the first crossbeam 2 at the rear end, the middle part is wound around the second synchronous wheel, and the other end of the second synchronous wheel is fixed to the rear side of the second telescopic seat 20. When the first telescopic seat 11 moves backward, the second telescopic seat 20 is pulled backward by the second synchronous belt 33.

[0027] The dynamic box dragging mechanism includes a pair of first fixed blocks 23 and a pair of second fixed blocks 24 respectively mounted on the front and rear fourth beams 5, and a guide rod 25 is arranged between the first fixed block 23 and the second fixed block 24. Each guide rod 25 is provided with a first slider 26 and a second slider 27, and a silo bottom plate 28 is fixed on the first slider 26 and the second slider 27. A spring 29 is sleeved on the guide rod 25, and the spring 29 is located between the second slider 27 and the second fixed block 24, and the spring 29 has a forward elastic force on the second slider 27. An elastic buffer block 30 is installed at the front end of the silo bottom plate 28, and when the silo bottom plate 28 is against the material placement frame, the buffer block 30 plays a role in reducing noise. A vertical limit portion 31 is formed at the rear end of the silo bottom plate 28, and the limit portion 31 cooperates with the limit plate 22.

[0028] When the second telescopic seat 20 extends to take materials, it will drive the limit plate 22 to move forward. Since the spring 29 has a forward elastic force on the second slider 27, the silo bottom plate 28 is driven to move forward along the guide rod 25, so that the buffer block 30 of the silo bottom plate 28 is against the material placement frame. The disadvantage of the prior art that there is a gap between the silo bottom plate 28 and the material placement frame, and the material box will be stuck in the gap when it is sent to the silo bottom plate 28, so that the material box can be smoothly sent to the silo bottom plate 28; when the second telescopic seat 20 is retracted, it will drive the baffle to move backward, and the baffle overcomes the force of the spring 29 to push the silo bottom plate 28 back to its original position.

[0029] The fork motor 14 drives the drive shaft 12 to rotate through the gear box 13, drives the chain 9 to rotate, and drives the first telescopic seat 11 to extend forward through the chain connecting plate 10. When the first telescopic seat 11 extends forward, it will drive the second synchronous wheel to move outward. Since one end of the second synchronous belt 33 is fixed on the second crossbeam 3 at the rear end, the other end will pull the second telescopic seat 20 to extend outward relative to the first telescopic seat 11. The first telescopic seat 11 and the second telescopic seat 20 are inserted from the top of the material box into the storage compartment of the material placement frame. The moving distance of the second telescopic seat 20 relative to the silo bottom plate 28 is twice the moving distance of the first telescopic seat 11. When the second telescopic seat 20 moves forward, the limit plate 22 will move forward. Since the spring 29 has a forward force on the silo bottom plate 28, the buffer block 30 at the front end of the silo bottom plate 28 is against the material placement frame. Then the gear shifting motor drives the gear shifting 21 to be lowered. The gear shifting 21 is located at the rear end of the material box and clamps the upper edge of the material box. Then the fork motor 14 moves in the reverse direction, and when the first telescopic seat 11 retracts backward, it drives the first synchronous wheel to move backward at the same time. Since one end of the first synchronous belt 32 is fixed to the second crossbeam 3 at the front end, the other end will pull the second telescopic seat 20 to retract backward relative to the first telescopic seat 11, and the shifting tooth 21 will pull the material box onto the silo bottom plate 28. While the second telescopic seat 20 retracts in the reverse direction, the limit plate 22 overcomes the elastic force of the spring 29 and pushes the silo bottom plate 28 back to its original position. When the material box is pulled onto the silo bottom plate 28, the shifting tooth motor will drive the shifting tooth 21 to reset.

[0030] The best embodiment of the present invention has been explained, and various changes or modifications made by ordinary technicians in this field will not depart from the scope of the present invention.

Claims

1. A fork-holding device for an AGV vehicle, comprising a fork-holding mounting frame, characterized in that: The top of the fork mounting frame is provided with a fork telescopic mechanism capable of telescopic movement above the material box; the fork telescopic mechanism is provided with a gear shifting motor, and the output shaft of the gear shifting motor is connected with a gear shifting (21) capable of rotating and clamping the upper edge of the material box; the fork mounting frame comprises four support frames (1), and the upper ends of the four support frames (1) are connected with two first cross beams (2) and two second cross beams (3); the lower ends of the four support frames (1) are connected with two third cross beams (4) and two fourth cross beams (5); the first cross beam (2) and the second cross beam (3), the third cross beam (4) and the fourth cross beam (5) respectively form a frame structure.

2. The fork-holding device according to claim 1 is characterized in that: The fork telescopic mechanism comprises two sprocket mounting plates (6) mounted on a first crossbeam (2), a first sprocket (7) and a second sprocket (8) being rotatable are mounted on both sides of each sprocket mounting plate (6), a chain (9) is arranged between the first sprocket (7) and the second sprocket (8), and the chain (9) is fixedly connected to the first telescopic seat (11) via a chain connecting plate (10).

3. The fork-holding device according to claim 2 is characterized in that: The first sprockets (7) on the two sprocket mounting plates (6) are fixed to the two ends of the drive shaft (12), the middle of the drive shaft (12) is connected to the fork-holding motor (14) through a gear box (13), and the gear box (13) is fixedly mounted on the second crossbeam (3) at the rear end.

4. The fork-holding device according to claim 3 is characterized in that: A fork mounting plate (15) is provided below the sprocket mounting plate (6), and the fork mounting plate (15) is fixedly connected to the support frame (1); a first telescopic guide rail (16) is provided in the length direction of the fork mounting plate (15), and the first telescopic seat (11) can be slidably mounted on the first telescopic guide rail (16) forward and backward.

5. The fork-holding device according to claim 4 is characterized in that: The first telescopic seat (11) is provided with a second telescopic guide rail (19), and the second telescopic guide rail (19) is provided with a second telescopic seat (20) capable of sliding forward and backward; the gear shifting motor is installed on the second telescopic seat (20), and the gear shifting (21) is located at the front end of the second telescopic seat (20); and a limiting plate (22) is provided at the rear end of the second telescopic seat (20).

6. The fork-holding device according to claim 5 is characterized in that: The first telescopic seat (11) is provided with a first mounting groove (11a) and a second mounting groove (11b) at both ends thereof; a first synchronous wheel mounting seat (17) is installed in the first mounting groove (11a) at the rear end of the first telescopic seat (11), and a first synchronous wheel is installed in the first synchronous wheel mounting seat (17); a second synchronous wheel mounting seat (18) is installed in the second mounting groove (11b) at the front end of the first telescopic seat (11), and a second synchronous wheel is installed in the second synchronous wheel mounting seat (18).

7. The fork-holding device according to claim 6 is characterized in that: One end of the first synchronous belt (32) is fixedly connected to the fork mounting frame, the middle portion is wound around the first synchronous wheel, and the other end of the first synchronous belt (32) is fixedly connected to the front end of the second telescopic seat (20); one end of the second synchronous belt (33) is fixedly connected to the fork mounting frame, the middle portion is wound around the second synchronous wheel, and the other end of the second synchronous belt (33) is fixedly connected to the rear end of the second telescopic seat (20).

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