A steering and traveling mechanism and a shuttle rack

Abstract

This invention discloses a steering and traveling mechanism and a shuttle rack, including a connecting plate, steering wheels, traveling wheels, connecting rods, rotating plates, connecting plates, adjusting rods, sleeves, drive wheels, and movable plates. The adjusting rod drives the sleeve to rotate the connecting rod, thereby adjusting the tilt of the steering wheels. The movable plate drives the drive wheel, causing the tilted steering wheels to rotate. Rotating the adjusting rod causes the sleeve to move, tilting the connecting rod, which in turn rotates the two connecting plates, causing the two rotating plates to rotate. The steering wheels tilt in the same direction, thus completing the steering adjustment before the shuttle rack begins to move. After the steering adjustment, the angle of the adjusting rod is fixed, and the electric telescopic rod is activated. Through the engagement of bevel gears, the two tilted steering wheels roll, thus completing the steering of the shuttle rack. Notably, the two steering wheels roll in opposite directions, which further enhances the steering angle.

Description

Technical Field

[0001] This invention relates to the field of logistics shuttle racking technology, specifically a steering and walking mechanism and a shuttle racking system. Background Technology

[0002] Shuttle racking is a highly efficient logistics storage system. In the warehousing and logistics field, shuttle racking systems are widely used due to their high space utilization and automated operation capabilities.

[0003] Traditional shuttle racks typically require manual tilting to turn, which is inconvenient, difficult to turn, and has poor turning efficiency. Some models have a turning mechanism, but the guide wheels of the turning mechanism roll in the same direction after tilting, resulting in poor turning efficiency.

[0004] Therefore, we propose a steering and traveling mechanism and a shuttle rack. Summary of the Invention

[0005] The purpose of this invention is to provide a steering and traveling mechanism and a shuttle rack to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a steering and traveling mechanism, including a connecting plate, with a steering wheel and a traveling wheel disposed below the connecting plate;

[0007] It also includes a connecting rod and a rotating plate rotatably connected to the connecting plate. The bottom end of the rotating plate is rotatably connected to the steering wheel. The two ends of the connecting rod are respectively hinged to the two rotating plates. An adjusting rod is rotatably connected below the connecting plate. The end of the adjusting rod is rotatably connected to a sleeve that slides with the connecting rod.

[0008] A drive wheel is rotatably connected to a connecting plate, and a movable plate is movably connected to the drive wheel.

[0009] Furthermore, a first fixing plate is fixedly connected to the bottom of the connecting plate, a U-shaped limiting rod is inserted into the first fixing plate, the middle part of the adjusting rod is rotatably connected to the connecting plate, and the U-shaped limiting rod is fixedly connected to a U-shaped insert rod and a connecting rod that are inserted and cooperate with the adjusting rod.

[0010] Furthermore, an electric telescopic rod is fixedly connected to the bottom of the connecting plate, and the end of the electric telescopic rod is rotatably connected to the movable plate.

[0011] Furthermore, the rotating plate has an L-shaped structure, and two meshing bevel gears are rotatably connected to the rotating plate. The central shaft of one bevel gear is fixedly connected to the central shaft of the steering wheel, and the central shaft of the other bevel gear is fixedly connected to a driven wheel that is rotatably connected to the connecting plate. A transmission toothed belt meshes between the driving wheel and the driven wheel.

[0012] Furthermore, the walking wheel is rotatably connected to another connecting plate.

[0013] A shuttle rack includes the aforementioned steering and traveling mechanism, as well as a base plate and multiple uprights. A crossbar is provided between two adjacent uprights via a connector. The crossbar is connected and fixed to the base plate. The connecting plate is connected and fixed to the bottom crossbar. A support plate is fixed to the bottom of the uprights via a plug-in connector.

[0014] Furthermore, a movable support plate is provided between the two columns via a connector, and a plug-in plate is provided between the two movable support plates.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By rotating the adjusting rod, the sleeve is moved, causing the connecting rod to tilt, which in turn causes the two connecting plates to rotate, making the two rotating plates rotate. The steering wheels tilt in the same direction, thus completing the steering wheel's rotation, which is the steering adjustment before the shuttle rack moves.

[0017] After the steering is adjusted and the angle of the adjusting rod is fixed, the electric telescopic rod is activated. Through the engagement of the bevel gears, the two tilting steering wheels roll, thereby completing the steering of the shuttle rack. It is worth noting that the two steering wheels roll in opposite directions, which helps to adjust the steering angle.

[0018] Finally, the electric telescopic system drives the mating wheels to contact the ground and slightly supports the shuttle rack, causing the two steering wheels to lift off the ground while the two traveling wheels remain in contact with the ground, pushing the shuttle rack to move and completing the positional movement. Then, the sliding support plate presses against the ground. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of the present invention;

[0020] Figure 2 This is a schematic diagram showing the disassembled structure of the steering and traveling mechanism and the shuttle rack in Embodiment 1 of the present invention;

[0021] Figure 3 This is a schematic diagram of the shuttle rack structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the steering and walking mechanism in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the cooperation structure between the two steering wheels and the connecting plate in Embodiment 1 of the present invention;

[0024] Figure 6 This is a schematic diagram of the disassembled structure of the steering wheel and rotating plate, the first fixed plate and the U-shaped limiting rod in Embodiment 1 of the present invention;

[0025] Figure 7 In Embodiment 1 of the present invention Figure 6 Side view of the connection structure of the middle connecting plate;

[0026] Figure 8 This is a schematic diagram of the disassembled structure of the connecting plate and the drive wheel in Embodiment 1 of the present invention;

[0027] Figure 9 This is a schematic diagram of the disassembled structure of the transmission toothed belt and the drive pulley in Embodiment 1 of the present invention;

[0028] Figure 10 This is a schematic diagram of the disassembled structure of the bevel gear and the rotating plate in Embodiment 1 of the present invention;

[0029] Figure 11 This is a schematic diagram of the rotational connection structure between the adjusting rod and the sleeve, and between the driving wheel and the movable plate in Embodiment 1 of the present invention;

[0030] Figure 12 This is a schematic diagram showing the disassembled structure of the steering wheel and rotating plate, the first fixed plate and the U-shaped limiting rod in Embodiment 2 of the present invention;

[0031] Figure 13 In Embodiment 2 of the present invention Figure 12 Side view of the connection structure of the middle connecting plate;

[0032] Figure 14 This is a schematic diagram of the rolling engagement structure between the roller and the second fixed plate in Embodiment 2 of the present invention;

[0033] Figure 15 This is a schematic diagram of the disassembled structure of the rotating plate and the connecting plate in Embodiment 2 of the present invention;

[0034] Figure 16 This is a schematic diagram of the fit between the elastic rod and the sliding groove in Embodiment 2 of the present invention;

[0035] Figure 17 This is a schematic diagram of the fitting structure between the sliding column and the sliding groove in Embodiment 2 of the present invention;

[0036] Figure 18 This is a schematic diagram of the cooperative structure of the adjusting rod, roller wheel, and movable ball in Embodiment 2 of the present invention;

[0037] Figure 19 This is a schematic diagram of the disassembled structure of the sliding column and the sliding groove in Embodiment 2 of the present invention.

[0038] In the diagram: 1. Connecting plate; 2. Steering wheel; 3. Traveling wheel; 4. Connecting rod; 5. Rotating plate; 6. Connecting plate; 7. Adjusting rod; 8. Sleeve; 9. Driving wheel; 10. Movable plate; 11. First fixed plate; 12. U-shaped limit rod; 13. U-shaped insert rod; 14. Insert rod; 15. Electric telescopic rod; 16. Bevel gear; 17. Driven wheel; 18. Transmission toothed belt; 19. Base plate; 20. Column; 21. Crossbar; 22. Support plate; 23. Movable support plate; 24. Insert plate; 25. Electric telescopic system; 26. Matching wheel; 27. Second fixed plate; 28. Roller wheel; 29. ​​Limiting plate; 30. Movable ball; 31. Elastic rod; 32. Sliding groove; 33. Sliding groove; 34. Sliding column. Detailed Implementation

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 are within the scope of protection of the present invention. Example 1

[0040] Please see Figures 1-11 The present invention provides a steering and walking mechanism, including a connecting plate 1, a steering wheel 2 and a walking wheel 3 are provided below the connecting plate 1, and the walking wheel 3 is rotatably connected to another connecting plate 1;

[0041] It also includes a connecting rod 4 and a rotating plate 5 rotatably connected to the connecting plate 1. The bottom end of the rotating plate 5 is rotatably connected to the steering wheel 2. The two ends of the connecting rod 4 are respectively hinged to the two rotating plates 5. An adjusting rod 7 is rotatably connected below the connecting plate 1. The end of the adjusting rod 7 is rotatably connected to a sleeve 8 that slides with the connecting rod 4.

[0042] A drive wheel 9 is rotatably connected to a connecting plate 1, and a movable plate 10 is rotatably connected to the outer edge of the drive wheel 9;

[0043] A corresponding shuttle rack includes the aforementioned steering and walking mechanism, as well as a base plate 19 and multiple uprights 20. A crossbar 21 is provided between two adjacent uprights 20 via a connector. The crossbar 21 is connected and fixed to the base plate 19. The connecting plate 1 is connected and fixed to the bottom crossbar 21. A support plate 22 is fixed to the bottom of the upright 20 via a plug-in connector. The base plate 19 is used to store logistics items.

[0044] A movable pallet 23 is also provided between the two uprights 20 via a connector, and a plug-in plate 24 is provided between the two movable pallets 23. For logistics items of different sizes, the height of the movable pallet 23 can be adjusted by adjusting the plug-in plate 24 and the connecting plate 1, thereby increasing its applicability.

[0045] An electric telescopic system 25 is fixedly connected to the bottom of the base plate 19, and a mating wheel 26 is rotatably connected to the telescopic end of the electric telescopic system 25.

[0046] This application is for when it is necessary to turn the shuttle rack around for movement;

[0047] First, loosen the connector to raise the support plate 22 away from the ground, so that the steering wheel 2 and the traveling wheel 3 contact the ground;

[0048] Then, by rotating the adjusting rod 7, the adjusting rod 7 is tilted, which drives the sleeve 8 to move, causing the connecting rod 4 to tilt, which drives the two connecting plates 6 to rotate, causing the two rotating plates 5 to rotate, and the two steering wheels 2 rotating on the rotating plates 5 tilt, and the tilting directions of the two steering wheels 2 are the same, thereby completing the steering of the steering wheels 2, that is, completing the steering adjustment before the shuttle rack moves.

[0049] After the steering is adjusted, fix the angle of the adjusting rod 7;

[0050] Then, start the electric telescopic rod 15, so that the telescopic end of the electric telescopic rod 15 reciprocates back and forth. In conjunction with the movable plate 10, the drive wheel 9 rotates continuously on the connecting plate 1 (rotating in the same clockwise direction). Through the cooperation of the bevel gear 16, the two inclined steering wheels 2 roll, thereby completing the turning of the shuttle rack. It is worth noting that the two steering wheels 2 roll in opposite directions, which is more conducive to the turning angle.

[0051] The shuttle rack is turned by the rolling of the walking wheels 3 and the steering wheels 2, the electric telescopic rod 15 stops moving, and the adjusting rod 7 is rotated so that the adjusting rod 7 is locked into the U-shaped insert rod 13;

[0052] Finally, the electric telescopic system 25 drives the mating wheel 26 to contact the ground and slightly supports the shuttle rack, causing the two steering wheels 2 to leave the ground while the two walking wheels 3 remain in contact with the ground, pushing the shuttle rack to move and completing the position movement. Then the sliding support plate 22 presses against the ground.

[0053] The support plate 22 has a socket. A pin is inserted into the socket and then into a pre-drilled hole on the ground to fix the shuttle rack.

[0054] Instructions on how to adjust the angle of the adjusting rod 7: The bottom of the connecting plate 1 is fixedly connected to a first fixing plate 11, and a U-shaped limiting rod 12 is inserted into the first fixing plate 11. The middle part of the adjusting rod 7 is rotatably connected to the connecting plate 1. The U-shaped limiting rod 12 is fixedly connected to a U-shaped insert rod 13 and an insert rod 14 that are inserted and cooperate with the adjusting rod 7.

[0055] By moving the U-shaped limiting rod upward along the first fixed plate 11, the plug rod 14 and the U-shaped plug rod 13 are disengaged from the first fixed plate 11, thereby releasing the restriction on the adjusting rod 7, wherein the bottom end of the U-shaped limiting rod 12 will not disengage from the first fixed plate 11;

[0056] The adjusting rod 7 is tilted horizontally along the first fixed plate 11, causing the sleeve 8 to rotate horizontally and adjust its position. After the adjusting rod 7 is tilted, the U-shaped limiting rod 12 is moved downward to make the adjusting rod 7 engage between the U-shaped limiting rod 12 and the plug rod 14, thereby completing the fixation of the adjusting rod 7 after the angle is adjusted.

[0057] After the movable plate 10 is tilted, the subsequent electric telescopic rod 15 reciprocates, which can adjust the clockwise direction of the drive wheel 9. If the tilt angle of the movable plate 10 is not changed, the clockwise direction of the drive wheel 9 remains unchanged. When the steering wheel 2 tilts to the left, the steering wheel 2 on the right rolls forward (the steering wheel 2 on the left rolls backward), which facilitates the turning of the shuttle rack. However, when the steering wheel 2 tilts to the right, the steering wheel 2 on the right continues to roll forward (the steering wheel 2 on the left continues to roll backward), which will cause movement conflict.

[0058] When the adjusting rod 7 is tilted, it drives the sleeve 8 to make a circular motion. The sleeve 8 slides along the connecting rod 4, and at the same time, it also pulls the connecting rod 4 to tilt horizontally. The two connecting plates 6 rotate, causing the two rotating plates 5 to change angle, thereby causing the steering wheel 2 to rotate and adjust the steering angle.

[0059] After the rotation angle of the steering wheel 2 is adjusted, and the angle of the movable plate 10 is also adjusted by the elastic rod 31, since the bottom of the connecting plate 1 is fixedly connected to the electric telescopic rod 15, the end of the electric telescopic rod 15 is rotatably connected to the movable plate 10. By starting the electric telescopic rod 15 (or other telescopic power components such as cylinders), the telescopic end of the electric telescopic rod 15 moves back and forth, thereby causing the end of the movable plate 10 to move back and forth. The other end of the movable plate 10 is rotatably connected to the edge of the drive wheel 9, so that the drive wheel 9 rotates on the original position on the connecting plate 1.

[0060] The rotating plate 5 has an L-shaped structure. Two meshing bevel gears 16 are rotatably connected to the rotating plate 5. The central shaft of one bevel gear 16 is fixedly connected to the central shaft of the steering wheel 2. The central shaft of the other bevel gear 16 is fixedly connected to a driven wheel 17 that is rotatably connected to the connecting plate 1. A transmission toothed belt 18 meshes between the driving wheel 9 and the driven wheel 17. The driving wheel 9 rotates on its original position on the connecting plate 1 (the clockwise direction is always the same).

[0061] The drive wheel 9 rotates on the connecting plate 1, and drives the two driven wheels 17 to rotate via the transmission belt 18. The rotating driven wheels 17 drive the two bevel gears 16 on the rotating plate 5 to rotate, thereby causing the steering wheel 2 to roll. The two rolling wheels roll in opposite directions, one forward and one backward, which helps the shuttle rack to turn.

[0062] The toothed belt 18 has a bonding plate that is fixed to the connecting plate 1 on its side (the bonding plate and the drive wheel 9 are pressed together respectively), and the bonding plate ensures that the toothed belt 18 is always engaged with the drive wheel 9 for transmission. Example 2

[0063] Please see Figures 12-19 This second embodiment is a further supplement to the first embodiment. Specifically, it also includes a second fixed plate 27, on which a roller wheel 28 is rolled. The middle part of the roller wheel 28 is movably engaged with the adjusting rod 7. The inclined adjusting rod 7 drives the sleeve 8 to rotate the connecting rod 4, thereby adjusting the inclination of the steering wheel 2.

[0064] Furthermore, limiting plates 29 are fixedly connected to both sides of the second fixed plate 27 to cooperate with the roller wheel 28 in rolling. A movable ball 30 is movably embedded in the middle of the roller wheel 28 and slides with the adjusting rod 7. Due to the limitation of the limiting plates 29, the adjusting rod 7 tilts and drives the roller wheel 28 to roll along the second fixed plate 27. The roller wheel 28 slides along the adjusting rod 7, and the movable ball 30 slides along the adjusting rod 7. At the same time, the movable ball 30 rotates within the roller wheel 28 to adjust the angle. The corresponding adjusting rod 7 rotates horizontally relative to the roller wheel 28 at a certain angle to ensure that the roller wheel 28 rolls along the second fixed plate 27.

[0065] Furthermore, two elastic rods 31 are fixedly connected to the outer surface of the roller wheel 28 and are in abutting cooperation with the movable plate 10. The second fixed plate 27 is provided with a sliding groove 32 that cooperates with the elastic rods 31. The rolling roller wheel 28 drives the elastic rods 31 to rotate.

[0066] Furthermore, a groove 33 is provided at the bottom of the drive wheel 9. A sliding column 34, which is connected and fixed to the movable plate 10, is movably fitted in the groove 33. The diameter of the sliding column 34 is smaller than the width of the groove 33, and the width of the groove 32 is smaller than the width of the roller wheel 28, so as to ensure that the roller wheel 28 rolls on the second fixed plate 27 (the contact surface between the two is a rough surface). The elastic rod 31 rotates into the sliding groove 32 and will not touch the second fixed plate 27, thus not affecting the rolling of the roller wheel 28.

[0067] When the adjusting rod 7 is rotated, the roller wheel 28 rolls on the second fixed plate 27. The rotating roller wheel 28 tilts the movable plate 10, which makes it easier to adjust the rotation direction of the drive wheel 9 when the electric telescopic rod 15 is started, so as to ensure that the tilted rotating wheel rotates to turn the shuttle rack.

[0068] When the elastic rod 31 contacts the movable plate 10, it drives the movable plate 10 to rotate, thereby causing the sliding column 34 to move along the sliding groove 33. The tilt angle of the movable plate 10 changes. The diameter of the sliding column 34 is smaller than the width of the groove 33, thus ensuring that the sliding column 34 will not be obstructed when the tilt angle of the movable plate 10 is adjusted. After the elastic rod 31 causes the tilt angle of the movable plate 10 to change, the elastic rod 31 continues to rotate, passing over the movable plate 10 (elastic bending), so that the end of the elastic rod 31 is below the bottom surface of the movable plate 10. This will not cause the elastic rod 31 to affect the subsequent reciprocating rotation of the movable plate 10, which drives the drive wheel 9 to rotate.

[0069] The telescopic end of the electric telescopic rod 15 reciprocates, thereby causing the end of the movable plate 10 to reciprocate. The other end of the movable plate 10 presses against the end of the slide groove 33 through the sliding column 34, making a circular motion, causing the drive wheel 9 to rotate in its original position. The outer surface of the sliding column 34 and the contact surface of the slide groove 33 are friction surfaces, reducing the sliding of the sliding column 34 in the slide groove 33.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0071] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A steering and traveling mechanism, comprising: A connecting plate is provided, with steering wheels and traveling wheels located below the connecting plate; The feature is that it further includes: a connecting rod and a rotating plate rotatably connected to the connecting plate, the bottom end of the rotating plate being rotatably connected to the steering wheel, the two ends of the connecting rod being hinged to the two rotating plates respectively, an adjusting rod being rotatably connected below the connecting plate, and a sleeve that slides with the connecting rod being rotatably connected to the end of the adjusting rod. A drive wheel is rotatably connected to a connecting plate, and a movable plate is movably connected to the drive wheel. The movable plate drives the drive wheel, causing the inclined steering wheel to rotate. The bottom of the connecting plate is fixedly connected to a first fixing plate, and a U-shaped limiting rod is inserted into the first fixing plate. The middle part of the adjusting rod is rotatably connected to the connecting plate, and the U-shaped limiting rod is fixedly connected to a U-shaped insert rod and an insert rod that are inserted and cooperate with the adjusting rod. An electric telescopic rod is fixedly connected to the bottom of the connecting plate, and the end of the electric telescopic rod is rotatably connected to the movable plate. The rotating plate has an L-shaped structure. Two meshing bevel gears are rotatably connected to the rotating plate. The central shaft of one bevel gear is fixedly connected to the central shaft of the steering wheel. The central shaft of the other bevel gear is fixedly connected to a driven wheel that is rotatably connected to the connecting plate. A transmission toothed belt meshes between the driving wheel and the driven wheel. The walking wheels are rotatably connected to another connecting plate; It also includes a second fixed plate, on which a roller is rolled and fitted. The middle of the roller is movably fitted with an adjusting rod. The adjusting rod drives the sleeve to rotate the connecting rod, thereby adjusting the tilt of the steering wheel. The second fixed plate has limiting plates fixedly connected to both sides to cooperate with the rolling of the roller wheel, and a movable ball that cooperates with the sliding of the adjusting rod is movably embedded in the middle of the roller wheel; Two elastic rods are fixedly connected to the outer surface of the roller wheel and press against the movable plate. The second fixed plate has a sliding groove that cooperates with the elastic rods. The rolling roller wheel drives the elastic rods to rotate. The bottom of the drive wheel has a sliding groove, and a sliding column that is connected and fixed to the movable plate is movably fitted in the sliding groove. The diameter of the sliding column is smaller than the width of the sliding groove, and the width of the sliding groove is smaller than the width of the roller wheel, so as to ensure that the roller wheel rolls on the second fixed plate. When the elastic rod rotates into the sliding groove, it will not touch the second fixed plate and will not affect the rolling of the roller wheel.

2. A shuttle rack, characterized in that: The steering and walking mechanism as described in claim 1 further includes a base plate and a plurality of columns. A crossbar is provided between two adjacent columns via a connector. The crossbar is connected and fixed to the base plate. The connecting plate is connected and fixed to the bottom crossbar. A support plate is fixed to the bottom of the column via a connector.

3. The shuttle rack according to claim 2, characterized in that: A movable support plate is also provided between the two columns via a connector, and a plug-in plate is provided between the two movable support plates.

4. The shuttle rack according to claim 2, characterized in that: An electric telescopic system is fixedly connected to the middle of the bottom support plate, and the bottom of the electric telescopic system is controlled by a mating wheel.

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