Double-station double-pallet-fork material box vehicle

Abstract

The invention discloses a double-station double-pallet-fork material box trolley, and belongs to the technical field of material conveying, the double-station double-pallet-fork material box trolley comprises a positioning frame and a frame movably connected to the surface of the positioning frame, two double-shaft motors are installed on the bottom wall of an inner cavity of the positioning frame, and guide screw rods are fixed to the two output ends of each double-shaft motor; the outer wall of the guide screw is in threaded connection with a guide block, a push-pull rod is arranged above the guide block, two material boxes are movably connected to the surface of the frame, two first rotating motors are installed in the frame, a connecting shaft is fixed to the output ends of the first rotating motors, gears are fixed to the two ends of the connecting shaft, and the two ends of the connecting shaft are each provided with a sliding block. Two racks meshed with the gear are fixed to the bottom of the material box, and an outer fork, a middle fork and an inner fork are sequentially arranged on the portions, on the two sides of the material box, of the surface of the frame. According to the double-station double-pallet-fork material box trolley, the height of the material box can be adjusted according to the conveying requirement of cargos, more cargos can be conveyed at the same time, and the conveying efficiency of the cargos is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of material transportation, and in particular relates to a double-station double-fork material box vehicle. Background Art

[0002] There are two main forms of shuttle vehicles in warehousing and logistics equipment: shuttle vehicle in-and-out system and shuttle vehicle storage system. It is an intelligent vehicle running on a fixed track in a reciprocating or looping manner to transport goods to a designated location or docking equipment. It is equipped with an intelligent sensing system that can automatically memorize the origin position and an automatic deceleration system. The shuttle vehicle storage system adds high-precision guide rails to traditional shelves, allowing the shuttle vehicle to run smoothly on it. The guide rails simultaneously undertake the functions of cargo transportation and cargo storage, thereby greatly improving the utilization rate of storage space.

[0003] Most shuttle vehicles in the prior art are single-station settings with low handling efficiency. At the same time, the height of the shuttle vehicle's material box is fixed, and the material box can only be placed at a specific height or picked up from a specific position. It lacks flexibility and cannot meet the transportation needs of goods at different heights. Summary of the invention

[0004] The object of the present invention is to provide a double-station double-fork material box vehicle to solve the problem that the shuttle vehicles in the prior art proposed in the above background technology are mostly single-station settings, with low handling efficiency, and at the same time, the height of the shuttle vehicle material box is fixed, and the material box can only be placed at a specific height, or the goods can be taken from a specific position, which lacks flexibility in use and cannot meet the transportation needs of goods at different heights.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-station double-fork material box vehicle, comprising a positioning frame and a frame movably connected to the surface of the positioning frame, two double-axis motors are installed on the bottom wall of the inner cavity of the positioning frame, and the two output ends of the double-axis motors are fixed with guide screws, the outer wall of the guide screw is threadedly connected with a guide block, and a push-pull rod is arranged above the guide block, and both ends of the push-pull rod are rotatably connected to a connecting seat fixedly connected to the guide block and the frame;

[0006] The surface of the frame is movably connected to two material boxes, and two rotating motors are installed in the frame. A connecting shaft is fixed to the output end of the rotating motor, and gears are fixed to both ends of the connecting shaft. The frame surfaces on both sides of the material box are sequentially provided with outer forks, middle forks and inner forks.

[0007] In a further embodiment, the outer fork is fixed to the surface of the frame, two racks meshing with the gears are fixed to the bottom of the middle fork, and the inner fork is fixed to the outer wall of the material box.

[0008] In a further embodiment, two rotating grooves are formed in the middle fork, and a synchronous pulley is rotatably connected in the rotating groove of the middle fork. A synchronous belt is installed outside the synchronous pulley, and both ends of the synchronous belt are fixedly connected to the outer fork and the inner fork respectively.

[0009] In a further embodiment, rotary motors II are installed at both ends of the inner fork, and a paddle is fixed to the output end of the rotary motor II.

[0010] In a further embodiment, sliders are fixedly connected to the outer walls of one side of the middle fork and the inner fork, and guide rails fixedly connected to the outer fork and the middle fork are slidably connected to the outside of both sliders.

[0011] In a further embodiment, four fixing blocks are fixed to the bottom of the positioning frame. Driven wheels are installed on two fixing blocks, and drive motors are installed on the other two fixing blocks. A drive wheel is installed at the output end of the drive motor.

[0012] In a further embodiment, four limiting grooves are formed on the surface of the positioning frame, and limiting columns fixedly connected to the frame are movably connected in the limiting grooves on the surface of the positioning frame.

[0013] Technical effects and advantages of the present invention:

[0014] This double-station double-fork bin truck can place two bins simultaneously through the setting of two stations, can transport the goods in the two bins to the designated positions simultaneously, or load two bins at the designated position simultaneously, improving the handling efficiency. At the same time, the setting of the two stations can transport one bin to the designated position and then transport the other bin to another position, reducing the time for returning to load midway and further improving the conveying efficiency of the goods;

[0015] By the operation of the double-shaft motor, two guiding screws can be driven to rotate simultaneously. The guiding screws can drive two guiding blocks to move towards each other. Cooperating with the push-pull rod, the frame can be pushed to rise, so as to push the bin to a suitable height. Furthermore, according to the conveying requirements of the goods, the goods can be placed at different heights or loaded at different heights, meeting the use requirements under different working conditions and having a wider range of use. This double-station double-fork bin truck can not only adjust the height of the bin according to the conveying requirements of the goods, but also transport more goods simultaneously, improving the conveying efficiency of the goods. Brief Description of the Drawings

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic structural diagram of the present invention;

[0019] Figure 3 is a cross-sectional view of the connection between the positioning frame and the frame of the present invention;

[0020] Figure 4 is a bottom view of the present invention;

[0021] Figure 5 is of the present invention Figure 2 is an enlarged view of part A in

[0022] In the figure: 1, positioning frame; 2, driven wheel; 3, driving wheel; 4, driving motor; 5, frame; 6, dual-axis motor; 7, guiding screw; 8, guiding block; 9, push-pull rod; 10, limiting post; 11, first rotating motor; 12, connecting shaft; 13, gear; 14, material box; 15, rack; 16, outer fork; 17, middle fork; 18, inner fork; 19, synchronous pulley; 20, second rotating motor; 21, paddle; 22, slider; 23, guide rail. Specific Embodiments

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some well-known technical features in the art are not described.

[0024] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the figures shown in the present invention, and are hereby explained together.

[0025] Please refer to Figures 1-5, the present invention provides a double-station double-fork bin truck, which includes a positioning frame 1 and a frame 5 movably connected to the surface of the positioning frame 1. Four fixing blocks are welded to the bottom of the positioning frame 1. Two driven wheels 2 are installed on two fixing blocks, and a driving motor 4 is installed on the other two fixing blocks through bolts. The output end of the driving motor 4 is equipped with a driving wheel 3, and the driving wheel 3 is movably connected to the fixing block. By driving the driving wheel 3 to rotate through the driving motor 4, power can be provided for the fork bin truck;

[0026] Two double-shaft motors 6 are installed on the bottom wall of the inner cavity of the positioning frame 1 through bolts. Both output ends of the double-shaft motors 6 are fixed with guide screws 7 through couplings. The outer wall of the guide screw 7 is threadedly connected with guide blocks 8. The thread groove directions of the guide screws 7 on both sides of the double-shaft motor 6 are opposite. When the double-shaft motor 6 works, the two guide blocks 8 can move towards or away from each other simultaneously. A push-pull rod 9 is arranged above the guide block 8. Both ends of the push-pull rod 9 are rotatably connected to connecting seats fixed to the guide block 8 and the frame 5. Two through grooves for the push-pull rod 9 to move are provided on the surface of the positioning frame 1;

[0027] Four limit grooves are provided on the surface of the positioning frame 1, and limit posts 10 welded and fixed to the frame 5 are movably connected in the limit grooves on the surface of the positioning frame 1. The limit posts 10 can limit the movement path of the frame 5. At the same time, when the frame 5 moves, the stability of the frame 5 during movement is ensured. By working the double-shaft motor 6, the two guide screws 7 can be driven to rotate simultaneously. The guide screws 7 can drive the two guide blocks 8 to move towards each other. Cooperating with the push-pull rod 9, the frame 5 can be pushed to rise, so that the frame 5 can be pushed to a suitable height. Furthermore, according to the conveying requirements of the goods, the goods can be placed at different heights, or the goods can be loaded at different heights, meeting the use requirements under different working conditions, and having a wider range of use;

[0028] Two bins 14 are movably connected to the surface of the frame 5. Two rotary motors 11 are installed in the frame 5 through bolts. The output end of the rotary motor 11 is fixed with a connecting shaft 12 through a coupling. Gears 13 are welded to both ends of the connecting shaft 12. Outer forks 16, middle forks 17 and inner forks 18 are sequentially arranged on the surface of the frame 5 on both sides of the bin 14. The outer forks 16 are fixed to the surface of the frame 5 through bolts. Two racks 15 meshing with the gears 13 are welded to the bottom of the middle fork 17, and the middle fork 17 is movably connected to the frame 5. The inner forks 18 are fixed to the outer wall of the bin 14 through bolts. Two rotating grooves are provided in the middle fork 17, and synchronous belt wheels 19 are rotatably connected in the rotating grooves of the middle fork 17 through rotating shafts. A synchronous belt is installed outside the synchronous belt wheels 19, and both ends of the synchronous belt are respectively fixed to the outer forks 16 and the inner forks 18. Sliders 22 are fixed to the outer walls of one side of the middle fork 17 and the inner fork 18, and guide rails 23 fixed to the outer forks 16 and the middle fork 17 are slidably connected to the outside of the two sliders 22;

[0029] Both ends of the inner fork 18 are installed with a second rotary motor 20 through bolts. A paddle 21 is fixed to the output end of the second rotary motor 20. The second rotary motor 20 can drive the paddle 21 to rotate. When the paddle 21 rotates to the front and rear sides of the material box 14, the position of the material box 14 can be restricted. During the transportation of the material box 14, it can prevent the material box 14 from accidentally falling off the frame 5. When the paddle 21 rotates to a vertical state, the restriction on the material box 14 is released, which is convenient for the loading and unloading of the material box 14. By setting two workstations, two material boxes 14 can be placed at the same time, and the goods in the two material boxes 14 can be transported to the designated positions at the same time, or two material boxes 14 can be loaded at the designated positions at the same time, which improves the handling efficiency. At the same time, the setting of the two workstations can transport one material box 14 to the designated position and then transport the other material box 14 to another position, reducing the time for returning to load again in the middle and further improving the conveying efficiency of the goods.

[0030] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, 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, it will not be elaborated here. The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0031] In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and 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, and therefore should not be construed as a limitation of the present invention.

[0032] Working principle:

[0033] When the double-station double-fork material box vehicle is in use, the goods are placed in the material box 14, the double-shaft motor 6 is started, and the four guide screws 7 are driven to rotate simultaneously. The two guide blocks 8 on both sides of the double-shaft motor 6 move towards each other, and cooperate with the push-pull rod 9 to push the frame 5 to rise, thereby pushing the material box 14 to a suitable height.

[0034] Start the drive motor 4 to drive the drive wheel 3 to rotate. Cooperate with the driven wheel 2 to move the fork box truck to the designated position. Then start the first rotary motor 11. The rotary motor drives the gear 13 to rotate through the connecting shaft 12, thereby driving the rack 15 to move. The middle fork 17 is connected to the rack 15 and moves along with the rack 15. The outer fork 16 and the inner fork 18 are connected to the middle fork 17 through the slider 22 and the guide rail 23. The outer fork 16 is connected to the inner fork 18 through the synchronous belt passing through the synchronous belt pulley 19 of the middle fork 17. The outer fork 16 is fixed. When the middle fork 17 moves, the inner fork 18 moves. When the inner fork 18 extends, the second rotary motor 20 rotates, and the paddle 21 rotates along with it. The inner fork 18 extends to push the box 14 onto the shelf.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-station double-fork material box truck, comprising a positioning frame (1) and a frame (5) movably connected to the surface of the positioning frame (1), characterized in that: Two dual-axis motors (6) are installed on the bottom wall of the inner cavity of the positioning frame (1), and the two output ends of the dual-axis motor (6) are fixed with guide screws (7), the outer wall of the guide screw (7) is threadedly connected with a guide block (8), and a push-pull rod (9) is arranged above the guide block (8), and both ends of the push-pull rod (9) are rotatably connected to a connecting seat fixedly connected to the guide block (8) and the frame (5); The surface of the frame (5) is movably connected to two material boxes (14), and two rotating motors (11) are installed in the frame (5). A connecting shaft (12) is fixed to the output end of the rotating motor (11), and gears (13) are fixed to both ends of the connecting shaft (12). The surface of the frame (5) on both sides of the material box (14) is sequentially provided with an outer fork (16), a middle fork (17) and an inner fork (18).

2. A double-station double-fork material box truck according to claim 1, characterized in that: The outer fork (16) is fixed to the surface of the frame (5), two racks (15) meshing with the gear (13) are fixed to the bottom of the middle fork (17), and the inner fork (18) is fixed to the outer wall of the material box (14).

3. A double-station double-fork material box truck according to claim 2, characterized in that: Two rotation grooves are provided in the middle fork (17), and a synchronous pulley (19) is rotatably connected in the rotation groove of the middle fork (17). A synchronous belt is installed outside the synchronous pulley (19), and two ends of the synchronous belt are fixedly connected to the outer fork (16) and the inner fork (18) respectively.

4. A double-station double-fork material box truck according to claim 2, characterized in that: Rotating motor 2 (20) is installed at both ends of the inner fork (18), and a paddle (21) is fixed to the output end of the rotating motor 2 (20).

5. A double-station double-fork material box truck according to claim 2, characterized in that: A slider (22) is fixed to one side outer wall of the middle fork (17) and the inner fork (18), and the outsides of the two sliders (22) are slidably connected to a guide rail (23) fixedly connected to the outer fork (16) and the middle fork (17).

6. A double-station double-fork material box truck according to claim 1, characterized in that: Four fixing blocks are fixed to the bottom of the positioning frame (1), two of the fixing blocks are mounted with driven wheels (2), the other two fixing blocks are mounted with drive motors (4), and the output end of the drive motor (4) is mounted with a drive wheel (3).

7. A double-station double-fork material box truck according to claim 1, characterized in that: The surface of the positioning frame (1) is provided with four limiting grooves, and limiting columns (10) fixedly connected to the frame (5) are movably connected in the limiting grooves on the surface of the positioning frame (1).

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