Omnidirectional stacking device

Abstract

The utility model discloses an omni-directional stacking device, which relates to the technical field of cargo handling, and comprises a chassis and a stacking gantry, and a steering wheel and a steering wheel are mounted on the chassis; the stacking portal frame is provided with a liftable pallet fork, and the stacking portal frame can move along the chassis so as to stretch out or retract the pallet fork; the stacking portal frame comprises supporting legs, the supporting legs are connected with the chassis in a sliding mode, first trundles are installed at the ends of the supporting legs, the chassis is provided with an inclined table, and the inclined table is used for enabling the first trundles to fall down when the stacking portal frame stretches out along the chassis and enabling the first trundles to be lifted up when the stacking portal frame retracts along the chassis. According to the utility model, the counter weight and the size of the device can be reduced, the structure is stable, and the flexibility, adaptability and safety are good.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo handling, in particular to an omnidirectional stacking device. Background Art

[0002] Omnidirectional stackers can lift goods to a certain height and place them on shelves, thereby utilizing warehouse storage space. Omnidirectional stackers can travel in multiple directions and do not require turning operations when docking, making them easy to move and operate. This feature allows omnidirectional stackers to flexibly move in narrow spaces. However, existing omnidirectional stackers still have some problems. For example: CN117263092A discloses a transport-type forklift AGV, including a gantry assembly, a fork assembly, a steering wheel drive assembly, and a lifting motor assembly. The fork assembly, steering wheel drive assembly, lifting motor assembly and a rope encoder are arranged on the rear side of the gantry assembly; CN116715175A discloses an omnidirectional walking device suitable for industrial vehicles, including a frame, a steering wheel assembly installed on each leg, and the steering wheel assembly includes a rotating disk movably connected to the leg, a wheel body installed on the rotating disk, and a drive assembly that drives the rotating disk to rotate in the horizontal direction.

[0003] Although the transporter in the above solution can move in all directions, the battery and other components are installed on the rear side of the mast, and the overall device has a large counterweight, which can easily cause instability; and the forks are still exposed when not in use, posing a safety hazard. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an omnidirectional stacking device that can reduce the counterweight and device volume, has a stable structure, and has good flexibility, adaptability and safety.

[0005] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] The embodiment of the present utility model provides an omnidirectional stacking device, comprising:

[0007] a chassis on which the steering wheel and the steering wheel are mounted;

[0008] A stacking gantry is mounted with a liftable fork, and the stacking gantry can move along the chassis to extend or retract the fork;

[0009] The stacking gantry includes a support leg, which is slidably connected to the chassis, and a first caster is installed at the end of the support leg. The chassis is provided with a ramp, which is used to lower the first caster when the stacking gantry is extended along the chassis and to lift the first caster when the stacking gantry is retracted along the chassis.

[0010] As a further implementation, the chassis is symmetrically mounted with slide rails relative to its center, the stacking gantry is provided with slide rail wheels that cooperate with the slide rails, and a driving mechanism is connected between the slide rails and the stacking gantry.

[0011] As a further implementation, the chassis includes a rack, one end of the rack is provided with an opening, and the opening is located on the inner side of the slide rail.

[0012] As a further implementation, at least one ramp is provided in the opening.

[0013] As a further implementation, a second caster is installed on at least one side of the first caster, and the second caster can move along the ramp.

[0014] As a further implementation, a main control unit is installed in the center of the rack, and batteries are provided on both sides of the main control unit.

[0015] As a further implementation, the steering wheels and the steering wheels form a triangular distribution structure.

[0016] As a further implementation, third casters are respectively provided on both sides of the steering wheel, and the third casters are used to provide lateral support.

[0017] As a further implementation, the third caster is equipped with a shock-absorbing mechanism.

[0018] As a further implementation, the cargo fork is slidably connected to the stacking mast, and the cargo fork is connected to a lifting mechanism.

[0019] The beneficial effects of the above embodiments of the present invention are as follows:

[0020] (1) The stacking device of the utility model includes a chassis, a stacking gantry that can move along the chassis, and the stacking gantry is equipped with a liftable fork; when not in use, the stacking gantry is retracted to one end of the chassis, and the fork is retracted to the inside of the chassis; the batteries and the like are distributed in the chassis, forming a symmetrical structure in the chassis, reducing the counterweight, and the overall structure is stable and small in size, and the fork is not exposed to ensure safety; when in use, the stacking gantry moves along the chassis to extend the fork, and the fork rises along the stacking gantry to achieve forking of the goods; due to the distribution of the steering wheel, steering wheel and casters, the device can also maintain balance during transportation; and a plurality of auxiliary casters are also provided to form auxiliary support.

[0021] (2) The utility model provides casters on both sides of the steering wheel and installs casters on the ends of the support legs of the stacking gantry, so that both ends of the device have auxiliary supports to ensure the balance of the device; and the casters on the support legs can be retracted to the chassis to avoid friction with the bottom surface during steering. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 A three-dimensional diagram of a stacker mast and forks in a retracted state according to one or more embodiments of the present invention;

[0024] Figure 2 A top view of a stacker mast and forks in a retracted state according to one or more embodiments of the present invention;

[0025] Figure 3 A bottom view of the stacker mast and forks in a retracted state according to one or more embodiments of the present invention;

[0026] Figure 4 A rear view of the stacker mast and forks in a retracted state according to one or more embodiments of the present invention;

[0027] Figure 5 A three-dimensional diagram of a stacker mast extended and a fork lifted in one or more embodiments of the present invention;

[0028] Figure 6 A top view of the stacker mast extended and the fork lifted in one or more embodiments of the present invention;

[0029] Figure 7 A bottom view of the stacker mast extended and the fork lifted in one or more embodiments of the present invention;

[0030] Figure 8 A rear view of one or more embodiments of the present invention showing a stacker mast extended and a fork lifted;

[0031] Figure 9 This is a schematic diagram of a stacking gantry structure according to one or more embodiments of the present invention;

[0032] Figure 10 A schematic diagram of the second caster wheel in contact with the top of the ramp in one or more embodiments of the present invention;

[0033] Figure 11 A schematic diagram of the contact between the second caster and the inclined surface of the ramp in one or more embodiments of the present invention;

[0034] Figure 12 This is a schematic diagram of the second caster being out of contact with the ramp in one or more embodiments of the present invention.

[0035] Among them, 1. Forklift gantry, 2. Chassis, 3. Fork, 4. Steering wheel, 5. Slide rail, 6. Third caster, 7. Main control unit, 8. Battery, 9. Rack, 10. Steering wheel, 11. Opening, 12. Gantry body, 13. Support leg, 14. Gear set, 15. First caster, 16. Second caster, 17. Hydraulic cylinder, 18. Inclined platform, 19. Drive motor, 20. Slide rail wheel. DETAILED DESCRIPTION

[0036] Example 1:

[0037] For the convenience of description, if the words "up", "down", "left" and "right" appear in this embodiment, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting this embodiment.

[0038] This embodiment provides an omnidirectional stacking device, such as Figures 1-8 As shown, it includes a chassis 2, a stacking mast 1, a fork 3 and other structures. The stacking mast 1 can move along the chassis 2 to extend out of the chassis 2 or retract into the chassis 2, and the fork 3 can be raised and lowered along the stacking mast 1.

[0039] Specifically, the chassis 2 includes a disc body and a shell. The shell is installed on the outside of the disc body to protect its internal components. The shape of the disc body can be set according to actual requirements. This embodiment adopts a disc structure, which can carry the components thereon and make the structure more compact. Two slide rails 5 are symmetrically installed on the upper side of the disc body relative to its center. The stacking gantry 1 is installed through the slide rails 5. The stacking gantry 1 has slide wheels 20 that are compatible with the slide rails 5. A driving mechanism is connected between the stacking gantry 1 and the slide rails 5. The driving mechanism moves the stacking gantry 1 along the slide rails 5. In this embodiment, the setting direction of the slide rails 5 is the front and rear directions, that is, the stacking gantry 1 can move forward or backward along the slide rails 5.

[0040] The slide rail 5 of this embodiment is made of channel steel, with its opening 11 facing inward, and the slide rail wheel 20 moves back and forth inside the channel steel. The slide rail wheel 20 uses a combined bearing to achieve left and right direction limitation of the stacking gantry 1.

[0041] The drive mechanism uses a linear motion mechanism, such as a rack and pinion 9 mechanism or a screw-nut mechanism. In this embodiment, the drive mechanism includes a gear set 14, a rack 9, and a drive motor 19. The rack 9 is mounted on the upper side of the slide rail 5, and the two are set to be of equal length to ensure the travel of the stacking gantry 1. The drive motor 19 is fixed to the stacking gantry 1, for example, on the rear side of the stacking gantry 1. The drive motor 19 meshes with the rack 9 through the gear set 14. Gears and racks 9 are set on both sides of the stacking gantry 1. The two sets of gears are coaxially driven to ensure the stability of the forward movement of the stacking gantry 1 and effectively prevent the stacking gantry 1 from shifting left or right.

[0042] The chassis 2 is equipped with a steering wheel 4, a steering wheel 10, and casters. Since the stacker mast 1 is also equipped with casters, for ease of description, they are distinguished by "first", "second", etc. The steering wheel 4 is used to provide steering and drive. In this embodiment, two steering wheels 4 are installed near the front end of the chassis 2, and the two steering wheels 4 are symmetrically arranged; a steering wheel 10 is installed near the rear end of the chassis 2. The steering wheel 10 and the two steering wheels 4 form an isosceles triangle. The steering wheel 10 only provides steering and does not provide power. It cooperates to realize the movement of the device in various modes, such as forward and backward movement, left and right movement, diagonal movement, and rotation in place, forming an omnidirectionally movable chassis 2, thereby improving the flexibility of the device.

[0043] A third caster 6 is provided on each side of the steering wheel 10. The third caster 6 is equipped with a shock-absorbing mechanism to provide better lateral support and ensure the stability of the device while ensuring the passability of the device. The shock-absorbing mechanism is an existing structure and will not be described in detail here.

[0044] The steering wheel 4 and the third caster 6 are both distributed on the outside of the slide rail 5, and the steering wheel 10 is located between the two slide rails 5; and the main control unit 7 is installed at the center of the disk body, and batteries 8 are installed on both sides of the disk body, and the batteries 8 are located on the outside of the slide rail 5. Through the above arrangement, the counterweight can be reduced compared to traditional forklifts, and the size of the device can be reduced.

[0045] like Figure 9 As shown, the stacker mast 1 includes a mast body 12 and support legs 13. The support legs 13 are connected to the bottom end of the mast body 12. Two support legs 13 are arranged horizontally with a certain spacing between them, which is compatible with the two slide rails 5. The mast body 12 is arranged vertically. The mast body 12 is a telescopic structure, and the fork 3 is mounted on the mast body 12 and is raised and lowered by the action of the lifting mechanism.

[0046] The lifting mechanism is realized by using existing technology, for example, a hydraulic cylinder 17 is used to realize lifting.

[0047] A first caster 15 is mounted on the front end of the support leg 13, and a ramp 18 is mounted on the chassis 2. The ramp 18 allows the first caster 15 to drop to the ground when the stacker mast 1 moves horizontally, or to move back into the chassis 2. When the support leg 13 is extended from the chassis 2, the first caster 15 cooperates with the third caster 6 to provide auxiliary support. When the support leg 13 is retracted into the chassis 2, the first caster 15 is lifted off the ground, preventing friction between the first caster 15 and the ground during chassis 2 movement, further ensuring the flexibility of chassis 2 movement.

[0048] In this embodiment, the front end of the rack is provided with two openings 11, each of which is provided with two ramps 18. Second casters 16 are symmetrically mounted on either side of the first caster 15. The second casters 16 are rotatably connected to the support legs 13 and can move along the ramps 18, thereby lowering or raising the first caster 15. Of course, in other embodiments, a second caster 16 can be provided on only one side of the first caster 15, in which case a corresponding ramp 18 is provided in the opening 11.

[0049] The ramp 18 is a block-shaped structure with a front side having an inclined surface. The inclination angle of the inclined surface satisfies the requirement that when the second caster 16 moves to the top surface of the ramp 18, the first caster 15 is off the ground, and when the second caster 16 is off the ramp 18, the first caster 15 is in contact with the ground.

[0050] The working principle of this embodiment is:

[0051] When the chassis 2 is moving and the stacking mast 1 is in the retracted state, Figure 10 As shown, the second caster 16 is located on the ramp 18 and the first caster 15 is off the ground, so as to avoid friction caused by the first caster 15 touching the ground when the chassis 2 moves.

[0052] When forking the cargo, the mast 1 extends forward. Figure 11 As shown, the second caster 16 moves downward along the ramp 18, and the first caster 15 also gradually moves downward until the first caster 15 touches the ground. When the support leg 13 of the stacking mast 1 is extended, the supporting force is transferred from the second caster 16 to the first caster 15.

[0053] like Figure 12 As shown, the stacking mast 1 continues to move forward to achieve cargo forking, and then moves in the opposite direction, and the second caster 16 gradually moves to the inclined platform 18, so that the first caster 15 is off the ground, thereby achieving the retraction of the cargo and the stacking mast 1.

[0054] When not in use, the stacking device of this embodiment retracts the stacking mast 1 to the rear of the chassis 2, the cargo fork 3 is retracted to the inside of the slide rail 5, and the battery 8 and the like are distributed inside the chassis 2. Compared with existing forklifts, the counterweight can be reduced, the overall structure is stable, and the volume is small; when in use, the stacking mast 1 moves along the chassis 2 to extend the cargo fork 3, and the cargo fork 3 can be raised and lowered along the stacking mast 1 to achieve forking of the cargo. Due to the distribution of the steering wheel 4, the steering wheel 10 and the casters, the device can also maintain balance during transportation; and a plurality of auxiliary casters are also provided to form auxiliary support.

[0055] The above 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 the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An omnidirectional stacking device, characterized in that: include: a chassis on which the steering wheel and the steering wheel are mounted; A stacking gantry is mounted with a liftable fork, and the stacking gantry can move along the chassis to extend or retract the fork; The stacking gantry includes a support leg, which is slidably connected to the chassis, and a first caster is installed at the end of the support leg. The chassis is provided with a ramp, which is used to lower the first caster when the stacking gantry is extended along the chassis and to lift the first caster when the stacking gantry is retracted along the chassis.

2. The omnidirectional stacking device according to claim 1, characterized in that: The chassis is symmetrically mounted with slide rails relative to its center, the stacking gantry is provided with slide rail wheels matched with the slide rails, and a driving mechanism is connected between the slide rails and the stacking gantry.

3. The omnidirectional stacking device according to claim 2, characterized in that: The chassis comprises a disc rack, one end of the disc rack is provided with an opening, and the opening is located on the inner side of the slide rail.

4. The omnidirectional stacking device according to claim 3, characterized in that: At least one ramp is provided in the opening.

5. An omnidirectional stacking device according to claim 1 or 4, characterized in that: A second caster is installed on at least one side of the first caster, and the second caster can move along the ramp.

6. An omnidirectional stacking device according to claim 3 or 4, characterized in that: A main control unit is installed in the center of the rack, and batteries are respectively provided on both sides of the main control unit.

7. The omnidirectional stacking device according to claim 1, characterized in that: The steering wheels and the steering wheels form a triangular distribution structure.

8. An omnidirectional stacking device according to claim 1 or 7, characterized in that: A third caster is provided on both sides of the steering wheel, and the third caster is used to provide lateral support.

9. The omnidirectional stacking device according to claim 8, characterized in that: The third caster is equipped with a shock-absorbing mechanism.

10. The omnidirectional stacking device according to claim 1, characterized in that: The cargo fork is slidably connected to the stacking mast, and the cargo fork is connected to the lifting mechanism.

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