A pallet conveyor for a cubic warehouse

Abstract

This utility model discloses a pallet conveyor for automated warehouses, including a base, a conveyor unit, and a transfer assembly. A drive cylinder is mounted on the surface of the base, and an elbow rod is rotatably mounted on the inner side of the base. The output end of the drive cylinder is rotatably connected to one end of the elbow rod, and a top wheel is mounted on the top of the elbow rod, slidingly abutting against the bottom surface of the conveyor unit. This allows the conveyor unit to rise and fall during the extension and retraction of the drive cylinder. This utility model ensures the stability of the conveyor unit's lifting and lowering movement through the cooperation of the drive cylinder and the elbow rod; it achieves efficient linear transport of goods through the rotation of the conveyor rollers; and it realizes pallet direction switching and steering transport by driving the rotating gear ring with an external rotor motor. This structure operates smoothly and is highly adaptable, meeting the multi-functional and high-efficiency pallet conveying requirements of automated warehouses.

Description

Technical Field

[0001] This utility model relates to the field of pallet conveyor technology, specifically a pallet conveyor for automated warehouses. Background Technology

[0002] Currently, pallet conveyors are widely used in automated warehouses and logistics systems for stacking, transferring, and transporting goods. Existing pallet conveyors typically consist of a frame, conveyor rollers, and a power drive unit, enabling the straight-line transport of goods in the horizontal direction. However, in multi-level, three-dimensional warehouse layouts, pallets need to be lifted and switched between different directions, and traditional pallet conveyors have certain limitations in terms of functional expansion.

[0003] For example, existing pallet conveyors generally use chain lifting or integrated lifting platform structures to achieve lifting functions. While these structures can achieve lifting of the conveyor unit, their lifting motion relies on complex chain drives or high-power motor drives. The overall structure is bulky, lacks stability, and is prone to shaking and deviation during long-term operation, resulting in poor accuracy and stability of the pallet during lifting and switching processes.

[0004] In multi-directional pallet conveying, some conveyors achieve pallet direction switching by adding turntable devices or lateral movement mechanisms to the conveyor line. However, these steering mechanisms generally use built-in motors or hydraulic drives, resulting in complex transmission links, high frictional resistance during rotation, and a tendency for slow rotation or jamming after long-term use, affecting pallet conveying efficiency. Furthermore, some structures lack effective support and guidance, easily causing pallet swaying during rotation, reducing the system's adaptability and operational reliability.

[0005] In summary, existing pallet conveyors are deficient in terms of the smoothness of lifting and lowering movements, guiding performance, and flexibility in multi-directional turning, making it difficult to meet the demands of automated warehouses for high efficiency, stability, and multi-functional conveying. Therefore, there is an urgent need for a pallet conveyor for automated warehouses that features a simple structure, smooth lifting, and flexible turning to solve the aforementioned technical problems. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: a pallet conveyor for an automated warehouse, comprising a base, a conveyor unit, and a transfer bearing assembly. A drive cylinder is provided on the surface of the base for driving the lifting and lowering movement of the conveyor unit. An elbow is rotatably mounted on the inner side of the base, located at the four feet of the bottom surface of the conveyor unit. The output end of the drive cylinder is rotatably connected to one end of the elbow. A top wheel is provided at the top of the elbow, slidingly abutting against the bottom surface of the conveyor unit, thereby achieving the lifting and lowering switching of the conveyor unit under the extension and retraction of the drive cylinder. The transfer bearing assembly includes a bearing seat, a transfer bearing base, and an outer rotor motor. A rotating gear ring is mounted on the surface of the transfer bearing base and connected to the bottom surface of the bearing base. A gear sleeved on the outer periphery of the outer rotor motor meshes with the rotating gear ring, thereby driving the bearing seat to rotate.

[0008] Specifically, this structure can adjust the angle of the pallet while ensuring the lifting and lowering of the conveyor unit, thus improving the flexibility and stability of the conveying process.

[0009] In a preferred example, the conveyor unit includes a pallet seat, conveyor rollers, and electrodes. The conveyor rollers are arranged linearly along the length of the pallet seat and are mounted on the inner walls of both sides of the pallet seat via bearings. The electrodes are used to drive the conveyor rollers to rotate, thereby realizing the linear conveying of the pallet.

[0010] Specifically, this structure enables rapid, linear transport of goods within the automated warehouse, improving transport efficiency.

[0011] In a preferred embodiment, the toggle lever is rotatably mounted on the surface of the base, and the distance between the connection point of the toggle lever and the end of the drive cylinder and its rotation center is greater than the distance between the top wheel and the rotation center of the toggle lever. The top wheel maintains sliding contact with the bottom surface of the tray seat, thereby achieving efficient lifting under the action of the drive cylinder.

[0012] Specifically, this structure can achieve a large lifting displacement with a small drive stroke, ensuring the stability and energy efficiency of the conveyor unit's lifting process.

[0013] In a preferred embodiment, the base is fixedly mounted with guide cylinders at its four corners, and the tray base is fixedly mounted with guide rods at its four corners, with the guide rods slidably sleeved on the inner side of the guide cylinders.

[0014] Specifically, this structure provides guidance and limits for the lifting and lowering movement of the conveyor unit, preventing the conveyor unit from deviating during the lifting and lowering process and ensuring the overall operational stability.

[0015] In a preferred example, the top of the support extends through the surface of the conveyor unit and serves as pallet support after the conveyor unit is lowered.

[0016] Specifically, this structure can take over the load on the pallet when the conveyor unit sinks, allowing the pallet to turn smoothly.

[0017] In a preferred embodiment, the bearing housing surface is provided with bearing balls, and the rotating gear ring abuts against the bearing balls. The rotating gear ring is fixedly installed at the bottom end of the bearing housing and rotates synchronously with the bearing housing.

[0018] Specifically, this structure reduces friction during bearing rotation, improving rotational flexibility and stability.

[0019] In a preferred example, the external rotor motor drives the bearing to rotate through gear meshing with a rotating gear ring.

[0020] Specifically, the structure enables pallet angle adjustment, allowing it to flexibly switch between linear conveying and multi-directional turning, thus improving the operational efficiency of the automated warehouse.

[0021] In a preferred example, the drive cylinder is a single-acting cylinder, whose output end achieves the lifting and lowering movement of the conveyor unit through the linkage between the elbow and the top wheel during the extension and retraction process.

[0022] Specifically, this structure simplifies the driving method, reduces energy consumption and structural complexity while ensuring lifting function, and improves system reliability.

[0023] The beneficial effects achieved by this utility model are as follows:

[0024] 1. In this utility model, by setting a linkage structure of drive cylinder, elbow rod and top wheel, the smooth lifting of the conveyor unit is realized. Under the limiting action of guide cylinder and guide rod, the accuracy and stability of lifting movement are guaranteed, thereby facilitating the flexible switching of pallets at different height positions in the automated warehouse and improving the conveying efficiency.

[0025] 2. In this utility model, by setting up a bearing assembly, the external rotor motor drives the bearing seat to rotate through gear meshing with the rotating gear ring, enabling the pallet to achieve direction adjustment and angle switching during the conveying process; at the same time, the bearing seat is equipped with bearing balls, which ensures the flexibility and stability of the bearing seat rotation, effectively improves the multi-directional adaptability of the pallet during the conveying process, and expands the application range of the conveyor in the automated warehouse. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0027] Figure 2 This is an exploded structural diagram of one embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the base surface structure according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a transfer component according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the drive cylinder and elbow structure according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the bearing seat and external rotor motor structure according to an embodiment of the present invention.

[0032] Figure label:

[0033] 100. Base; 110. Guide cylinder; 120. Drive cylinder; 130. Toggle lever; 131. Top wheel;

[0034] 200. Conveyor unit; 210. Pallet seat; 220. Conveyor roller; 230. Electrode; 211. Guide rod;

[0035] 300, bearing assembly; 310, bearing seat; 320, bearing seat; 330, external rotor motor; 321, rotary gear ring. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0037] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0038] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a pallet conveyor for automated warehouses.

[0039] Combination Figures 1-6 As shown, the present invention provides a pallet conveyor for an automated warehouse, comprising: a base 100, a conveyor unit 200, and a transfer assembly 300.

[0040] The base 100 is equipped with a drive cylinder 120 for driving the conveyor unit 200 to move up and down. The drive cylinder 120 is fixedly mounted on the lower crossbeam of the base 100. An elbow 130 is rotatably mounted on the inner side of the base 100, located at four feet on the bottom surface of the conveyor unit 200. The rotating end of the elbow 130 is rotatably mounted on the base 100 via a pin. The output end of the drive cylinder 120 is rotatably connected to one end of the elbow 130. A top wheel 131 is rotatably mounted on the top of the elbow 130, and the top wheel 131 slides against the bottom surface of the conveyor unit 200. The extension and retraction of the drive cylinder 120 drives the elbow 130 to rotate, thereby pushing the top wheel 131 to lift or release the conveyor unit 200, realizing the lifting and lowering movement of the conveyor unit 200.

[0041] The conveyor unit 200 is used for linear transport of objects and includes a pallet seat 210 and several conveyor rollers 220 for carrying and linearly transporting pallets.

[0042] The bearing assembly 300 includes a bearing seat 310, a bearing base 320, and an external rotor motor 330 fixed to the surface of the base 100. A gear ring 321 is rotatably mounted on the surface of the bearing base 320, and the top end of the gear ring 321 is fixedly connected to the bottom surface of the bearing seat 310, allowing the bearing seat 310 to rotate with the rotation of the gear ring 321. A gear is sleeved on the outer periphery of the external rotor motor 330, and the gear meshes with the inner side of the gear ring 321 to drive the bearing base 310 and the tray to rotate.

[0043] In this embodiment, the conveyor unit 200 further includes a tray base 210, conveyor rollers 220, and electrodes 230. A plurality of conveyor rollers 220 are arranged in a straight line and mounted on the inner walls of both sides of the tray base 210 via bearings. The electrodes 230 are fixedly mounted on the side of the tray base 210 and are used to drive the conveyor rollers 220 to rotate, thereby achieving linear conveying of objects.

[0044] In this embodiment, the elbow 130 is rotatably mounted on the surface of the base 100, with its center of rotation located at the middle of the elbow 130. The distance between the connection point of the elbow 130 and the end of the drive cylinder 120 and the center of rotation of the elbow 130 is greater than the distance between the top wheel 131 and the center of rotation of the elbow 130. Therefore, under the push of the drive cylinder 120, a larger lifting displacement can be achieved with a smaller extension stroke, improving the lifting efficiency of the top wheel 131. The top wheel 131 and the bottom surface of the tray seat 210 always maintain a sliding contact state to ensure the smoothness of the lifting movement.

[0045] In this embodiment, guide cylinders 110 are fixedly installed on the four legs of the base 100, and guide rods 211 are fixedly installed on the four corners of the pallet seat 210. The guide rods 211 are slidably sleeved on the inner side of the guide cylinders 110 to guide the lifting and lowering movement of the conveyor unit 200, avoid the conveyor unit 200 from shaking during the lifting and lowering process, and improve the stability and safety of the movement.

[0046] In this embodiment, the top of the support 310 of the transfer assembly 300 extends through the surface of the conveyor unit 200. When the conveyor unit 200 descends, the support 310 is positioned flush with the upper surface of the conveyor unit 200 to support the pallet, enabling the pallet to switch between conveying and steering modes.

[0047] In this embodiment, the surface of the bearing seat 320 is provided with bearing balls, which abut against the surface of the rotating gear ring 321, thereby reducing rotational friction. The rotating gear ring 321 is fixedly installed at the bottom end of the bearing seat 310 and rotates synchronously with the bearing seat 310, thereby achieving smooth rotation under the drive of the external rotor motor 330.

[0048] In this embodiment, the external rotor motor 330 meshes with the rotating gear ring 321 via an external peripheral gear, driving the rotating gear ring 321 to rotate. As the rotating gear ring 321 rotates, the bearing seat 310 drives the pallet to rotate accordingly, realizing the angle adjustment of the pallet, thereby completing the switching of the pallet between linear conveying and multi-directional turning, improving the flexibility of the conveying system.

[0049] In this embodiment, the drive cylinder 120 is a single-acting cylinder, and its output end is connected to the elbow 130 during extension and retraction, driving the top wheel 131 to lift or release the bottom surface of the conveyor unit 200, thereby realizing the lifting and lowering movement of the conveyor unit 200. This structure can simplify the drive system and improve the reliability of operation while ensuring lifting force.

[0050] Working principle and usage process of this utility model:

[0051] This utility model achieves the functions of linear transport, lifting and switching, and direction adjustment of pallets in an automated warehouse through the coordinated operation of the base 100, the conveyor unit 200, and the transfer assembly 300.

[0052] During operation, the drive cylinder 120 starts, driving the toggle lever 130 to rotate. The top wheel 131 of the toggle lever 130 maintains sliding contact with the bottom surface of the pallet seat 210. Under the extension and retraction of the drive cylinder 120, the pallet seat 210 and the conveyor unit 200 on it are driven to achieve lifting and lowering movements. To ensure the smoothness of the lifting process, the guide rods 211 at the four corners of the pallet seat 210 slide inside the guide cylinder 110, serving as limiters and guides.

[0053] The conveyor unit 200 is equipped with several conveyor rollers 220. The conveyor rollers 220 rotate under the drive of the electrode 230, thereby conveying the goods placed on the pallet seat 210 in a straight direction.

[0054] When it is necessary to change the direction of the object or change the conveying path, the conveyor unit 200 automatically descends under the operation of the drive cylinder 120, and the transducer assembly 300 starts. The outer rotor motor 330 drives its outer peripheral gear to rotate, and meshes with the rotating gear ring 321, thereby driving the transducer seat 320 and the bearing seat 310 to rotate synchronously. Since the top of the bearing seat 310 passes through the conveyor unit 200, after the conveyor unit 200 descends, the bearing seat 310 can support the pallet and drive it to rotate, realizing the angle adjustment of the pallet and changing the orientation of the object.

[0055] Meanwhile, bearing balls are provided between the bearing seat 320 and the rotating gear ring 321 to ensure the rotational flexibility and stability of the bearing seat 310. Driven by the external rotor motor 330, the pallet can flexibly switch between linear conveying and directional conveying.

[0056] In summary, this utility model realizes the lifting function of the conveyor unit 200 through the linkage of the drive cylinder 120 and the elbow 130; realizes the straight-line transportation of goods through the rotation of the conveyor roller 220; and realizes the angle adjustment of the pallet through the rotation of the bearing assembly 300. The overall structure is compact and the operation is stable, which can meet the needs of automated warehouses for multi-directional pallet transportation and flexible turning.

[0057] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pallet conveyor for a cubic warehouse, characterized by comprising: include: The system comprises a base (100), a conveyor unit (200), and a bearing assembly (300). The base (100) has a drive cylinder (120) on its surface for driving the conveyor unit (200) to move vertically. An elbow (130) is rotatably mounted on the inner side of the base (100) at four feet on the bottom surface of the conveyor unit (200). The output end of the drive cylinder (120) is rotatably connected to one end of the elbow (130). The top end of the elbow (130) is rotatably mounted to the conveyor unit (200). The top wheel (131) slides against the bottom surface; the conveyor unit (200) is used for linear conveying of objects; the bearing assembly (300) includes a bearing seat (310), a bearing seat (320) and an outer rotor motor (330) fixed to the surface of the base (100). A rotating toothed ring (321) connected to the bottom surface of the bearing seat (310) is rotatably mounted on the surface of the bearing seat (320). A gear that meshes with the inner side of the rotating toothed ring (321) is sleeved on the outer periphery of the outer rotor motor (330).

2. The pallet conveyor for a three-dimensional warehouse according to claim 1, wherein The conveyor unit (200) includes a tray base (210), a conveyor roller (220) and an electrode (230) for driving the conveyor roller (220) to rotate. A plurality of the conveyor rollers (220) are arranged in a straight line and rotatably mounted on the inner side of the tray base (210).

3. The pallet conveyor for a three-dimensional warehouse according to claim 1, wherein The elbow (130) is rotatably mounted on the surface of the base (100), and the distance between the connection point of the elbow (130) and the end of the drive cylinder (120) and the center of rotation of the elbow (130) is greater than the distance between the top wheel (131) and the center of rotation of the elbow (130). The top wheel (131) slides against the bottom surface of the tray seat (210).

4. The pallet conveyor for a three-dimensional warehouse according to claim 2, wherein The base (100) is fixedly installed with guide cylinders (110) at its four feet, and the pallet seat (210) is fixedly installed with guide rods (211) at its four corners. The guide rods (211) are slidably sleeved on the inside of the guide cylinders (110) to guide the lifting and lowering movement of the conveyor unit (200).

5. The pallet conveyor according to claim 1, wherein The top of the bearing (310) of the transducer assembly (300) is arranged through the surface of the conveyor unit (200) to provide support for the object after the conveyor unit (200) descends.

6. The pallet conveyor for a three-dimensional warehouse according to claim 1, wherein The bearing seat (320) has bearing balls that abut against the surface of the rotating toothed ring (321). The rotating toothed ring (321) is fixed to the bottom end of the bearing seat (310) and rotates synchronously with the bearing seat (310).

7. The pallet conveyor according to claim 1, wherein The external rotor motor (330) drives the rotating gear ring (321) to rotate through gear transmission, thereby driving the bearing seat (310) and the pallet on it to adjust the angle, realizing the switching of the pallet between conveying and turning.

8. The pallet conveyor for a three-dimensional warehouse according to claim 1, wherein The drive cylinder (120) is a single-acting cylinder. Its output end works with the top wheel (131) through the elbow (130) during the extension and retraction process, thereby driving the conveyor unit (200) to lift and lower.

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