An overhead warehouse robot

Abstract

This utility model discloses a lifting warehouse robot, including a vehicle body. Balance wheels are installed at the four corners of the vehicle body's bottom, and a drive mechanism is arranged between the balance wheels. A gear disk is rotatably connected to the center of the vehicle body, and a drive motor mounted on the vehicle body is located on one side of the gear disk. This utility model offers stable movement and enhanced safety by preventing derailment: the balance wheels at the four corners of the vehicle body and symmetrical guide wheels form multi-point support. The balance wheels ensure the vehicle body is level, and the guide wheels conform to the track to prevent derailment. Even when fully loaded or on uneven ground, the vehicle body can avoid tilting, reducing the risk of cargo damage and derailment, making it suitable for complex warehouse movement scenarios. The lifting is precise and stable, with strong adaptability: the scissor-type lifting mechanism, combined with a screw drive, can accurately adapt to shelves of different heights; two sets of scissor bars are symmetrically stressed, ensuring the top plate remains level and preventing goods from tilting and falling; the rollers transform sliding friction into rolling friction, reducing wear, ensuring smooth lifting, and improving operational efficiency and equipment lifespan.

Description

Technical Field

[0001] This utility model relates to the field of warehousing and logistics equipment technology, and in particular to a lifting warehousing robot. Background Technology

[0002] With the development of warehouse automation, warehouse robots have become core equipment for improving the efficiency of goods handling. However, existing lifting warehouse robots generally have the following technical defects: Poor mobility stability: Most robots rely solely on drive wheels for support, making them prone to tilting due to uneven ground or shifting of the cargo's center of gravity during movement. They are especially susceptible to derailment when turning or moving at high speeds. The existing equipment can only lift and move goods vertically and horizontally, but cannot adjust the angle of the goods. When dealing with tilted shelves or goods with special placement requirements, manual adjustment is required, which reduces the efficiency of operation. In response to the shortcomings of the existing technologies, there is an urgent need for a lifting warehouse robot with high mobility stability, precise lifting, adjustable angle, strong protection, and low wear. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a lifting warehouse robot. The aim is to overcome the defects of existing lifting warehouse robots, such as unstable movement, low lifting accuracy, lack of angle adjustment function, and insufficient protection. The proposed robot is a compact, stable, and fully functional lifting warehouse robot that achieves efficient and precise warehousing operations through multi-wheel support, scissor-type lifting mechanism, and angle adjustment structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A lifting warehouse robot includes a vehicle body, with balance wheels installed at the four corners of the bottom of the vehicle body. A drive mechanism is arranged between the balance wheels. A gear disk is rotatably connected to the center of the vehicle body. A second drive motor is installed on one side of the gear disk and mounted on the vehicle body. A spur gear that meshes with the gear disk is installed at the output end of the second drive motor. A top plate is connected to the top of the gear disk through a lifting mechanism. A through circular opening is provided on the top of the vehicle body.

[0005] Preferably, the lifting mechanism includes an upper mounting base and a lower mounting base. The top plate is mounted on the upper mounting base. Two sets of scissor bars are arranged between the upper and lower mounting bases. One end of the scissor bars is rotatably connected to the upper and lower mounting bases respectively via a round rod. The other end of the scissor bars is slidably connected to the upper and lower mounting bases respectively via a connecting seat. One of the connecting seats is threaded with a lead screw, which is connected to the three output terminals of the drive motor mounted on the lower mounting base.

[0006] Preferably, both ends of the connecting seat are rotatably connected to rollers, and the rollers are in rolling connection with the tracks of the upper and lower mounting seats.

[0007] Preferably, the drive mechanism includes a drive motor mounted on the vehicle body and a wheel seat, with a drive wheel rotatably connected to the wheel seat, and the drive wheel connected to the drive motor via a chain drive mechanism.

[0008] Preferably, an upper disc is provided between the top plate and the upper mounting base, the upper disc being located above the through-hole and having a diameter larger than the diameter of the through-hole.

[0009] Preferably, guide wheels are symmetrically arranged at the bottom of the vehicle body.

[0010] Compared with the prior art, the beneficial effects of this utility model are: Stable movement and safer derailment prevention: The four corner balance wheels and symmetrical guide wheels at the bottom of the vehicle form a multi-point support. The balance wheels ensure the vehicle is level, and the guide wheels fit the track to prevent derailment. Even when fully loaded with goods or on uneven ground, the vehicle can avoid tilting, reducing the risk of cargo damage and derailment, and is suitable for complex warehouse movement scenarios.

[0011] Precise and stable lifting with strong adaptability: The scissor-type lifting mechanism, combined with the screw drive, can accurately adapt to shelves of different heights; the two sets of scissor bars are symmetrically stressed to ensure that the top plate is always horizontal and to prevent goods from tilting and falling; the rollers change sliding friction to rolling friction, reducing wear, ensuring smooth lifting, and improving work efficiency and equipment life.

[0012] Adjustable angle, no manual assistance required: The second drive motor meshes with the gear disc through a spur gear, driving the top plate to rotate. The angle of the goods can be adjusted to adapt to tilted shelves or special placement requirements. No manual adjustment is required, reducing labor costs and improving the automation level of warehousing operations.

[0013] Good protection and low maintenance cost: When not in operation, the upper disc completely covers the through-hole, preventing debris from entering the vehicle body and reducing component wear; the chain drive mechanism and roller design reduce the frequency of failures, reduce the number of cleaning and maintenance, and have lower long-term use costs.

[0014] Stable power and strong load capacity: The drive mechanism uses chain drive to transmit power, which is not easy to slip and meets the cargo handling needs of small and medium-sized warehouse scenarios, making it highly practical. Attached Figure Description

[0015] To illustrate the technical solutions in the embodiments of this utility model or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 Schematic diagram of the structure proposed in this utility model Figure 1 ; Figure 2 Schematic diagram of the structure proposed in this utility model Figure 2 ; Figure 3 This is a schematic diagram of the internal structure proposed in this utility model; Figure 4 for Figure 3 A front view structural diagram; Figure 5 This is a schematic diagram of the lifting mechanism proposed in this utility model.

[0017] In the diagram: 1. Car body; 2. Top plate; 3. Drive mechanism; 31. Drive motor 1; 32. Wheel seat; 33. Drive wheel; 34. Chain drive mechanism; 4. Balance wheel; 5. Guide wheel; 6. Drive motor 2; 7. Gear disc; 8. Lead screw; 9. Upper disc; 10. Upper mounting base; 11. Lower mounting base; 12. Scissor bar; 13. Round rod; 14. Roller; 15. Connecting seat. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-5 A lifting warehouse robot includes a vehicle body 1. Balance wheels 4 are installed at the four corners of the bottom of the vehicle body 1. A drive mechanism 3 is arranged between the balance wheels 4. A gear disk 7 is rotatably connected to the center of the vehicle body 1. A drive motor 6 is installed on one side of the gear disk 7 and mounted on the vehicle body 1. A spur gear that meshes with the gear disk 7 is installed at the output end of the drive motor 6. A top plate 2 is connected to the top of the gear disk 7 through a lifting mechanism. A through circular opening is provided on the top of the vehicle body 1.

[0020] The drive mechanism 3 includes a drive motor 31 and a wheel seat 32 mounted on the vehicle body 1. A drive wheel 33 is rotatably connected to the wheel seat 32, and the drive wheel 33 is connected to the drive motor 31 via a chain drive mechanism 34. When the drive motor 31 is started, power is transmitted to the drive wheel 33 via the chain drive mechanism 34, and the drive wheel 33 rotates, causing the vehicle body 1 to move back and forth. By controlling the speed difference between the two drive wheels 33, the vehicle body 1 can be steered, meeting the movement requirements of complex paths within the warehouse. The chain drive mechanism 34 provides stable transmission and is not prone to slippage, ensuring that the vehicle body 1 can still move stably when fully loaded with goods.

[0021] The lifting mechanism includes an upper mounting base 10 and a lower mounting base 11. The top plate 2 is mounted on the upper mounting base 10. Two sets of scissor bars 12 are arranged between the upper mounting base 10 and the lower mounting base 11. One end of the scissor bar 12 is rotatably connected to the upper mounting base 10 and the lower mounting base 11 respectively through a round rod 13. The other end of the scissor bar 12 is slidably connected to the upper mounting base 10 and the lower mounting base 11 respectively through a connecting seat 15. One of the connecting seats 15 is threadedly connected to a lead screw 8. The lead screw 8 is connected to the three output terminals of the drive motor mounted on the lower mounting base 11. When the height of the top plate 2 needs to be adjusted, the drive motor 3 is started. The drive motor 3 drives the lead screw 8 to rotate, and the lead screw 8 drives the threaded connecting seat 15 to slide along the track. When the connecting seat 15 slides, it drives the scissor bar 12 to rotate around the round rod 13, adjusting the opening and closing angle of the scissor bar 12. When the angle increases, the top plate 2 rises, and when the angle decreases, the top plate 2 falls. The two sets of scissor bars 12 are symmetrically stressed, ensuring that the top plate 2 remains horizontal during the lifting and lowering process, avoiding the goods from tilting and falling, and adapting to the loading and unloading needs of shelves of different heights.

[0022] Both ends of the connecting seat 15 are rotatably connected to rollers 14, which are rolled along the tracks of the upper mounting seat 10 and the lower mounting seat 11. When the connecting seat 15 slides, the rollers 14 roll along the tracks, converting sliding friction into rolling friction. This reduces frictional resistance by more than 60%, which not only reduces wear between the connecting seat 15 and the tracks but also prevents lifting jams, ensuring that the lifting mechanism can still operate flexibly for a long time, and reducing maintenance frequency and costs.

[0023] An upper disc 9 is provided between the top plate 2 and the upper mounting base 10. The upper disc 9 is located above the through-hole and its diameter is larger than that of the through-hole. When the top plate 2 is lowered to its lowest position (non-operating state), the upper disc 9 completely covers the through-hole at the top of the vehicle body 1, preventing dust, paper scraps, small parts and other debris from entering the interior of the vehicle body 1. This avoids the accumulation of debris that may wear down components such as the gear disc 7 and the scissor bar 12, extends the overall service life of the equipment, and reduces the amount of cleaning and maintenance work.

[0024] Guide wheels 5 are symmetrically arranged at the bottom of the vehicle body 1. When moving on the pre-set track in the warehouse, the guide wheels 5 roll against the inner side of the track to provide guidance for the vehicle body 1 and prevent the vehicle body 1 from derailing when moving at high speed or turning. At the same time, the guide wheels 5 cooperate with the balance wheels 4 at the four corners to form a multi-point support, ensuring that the vehicle body 1 can remain level and stable on uneven ground or when fully loaded with goods, and avoiding the vehicle body 1 tilting and causing damage to the goods.

[0025] In addition, when it is necessary to adjust the angle of the goods, drive motor 26 is started. Drive motor 26 drives the spur gear to rotate. The spur gear meshes with the gear disk 7 and drives the gear disk 7 to rotate around the center of the vehicle body 1. When the gear disk 7 rotates, it drives the lifting mechanism on the top to rotate synchronously with the top plate 2, thereby adjusting the angle of the goods on the top plate 2. This adapts to goods with tilted shelves or special placement requirements, eliminating the need for manual adjustment and improving work efficiency.

[0026] During routine operations, the vehicle body 1 moves under the goods with the cooperation of the drive mechanism 3, balance wheel 4, and guide wheel 5. The lifting mechanism raises the top plate 2 to lift the goods, and then moves it to the target shelf position. If the angle of the goods needs to be adjusted, the drive motor 6 is started to adjust the angle, and then the lifting mechanism is controlled to lower the goods to place them on the shelf, completing the loading operation. The unloading operation is the reverse process. When not in operation, the top plate 2 is lowered to its lowest position, and the upper disc 9 covers the through-hole to protect the internal components.

[0027] The drive wheel 33 provides power for the forward and backward movement of the vehicle body 1, and the steering is controlled by controlling the different speeds of the drive wheel 33. The balance wheel 4 provides support for the vehicle body 1 from the four corners, ensuring that the movement of the vehicle body 1 is more stable. The guide wheel 5 enables the vehicle body 1 to move along the predetermined track, reducing the risk of derailment. At the same time, the lead screw 8 controls the movement of the connecting seat 15 to adjust the angle of the scissor bar 12, thereby adjusting the height of the top plate 2 and controlling the height of material loading or unloading. Moreover, the drive motor 6 controls the rotation of the gear disk 7, which can adjust the angle of the material and the angle of loading or unloading to meet different storage needs. When the top plate 2 is at the bottom, the upper disc 9 will block the through-hole to prevent foreign objects from entering and improve the stability of the device.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lifting warehouse robot, comprising a vehicle body (1), characterized in that, Balance wheels (4) are installed at the four corners of the bottom of the vehicle body (1). A drive mechanism (3) is provided between the balance wheels (4). A gear disk (7) is rotatably connected to the center of the vehicle body (1). A second drive motor (6) is installed on one side of the gear disk (7) and is mounted on the vehicle body (1). A spur gear that meshes with the gear disk (7) is installed at the output end of the second drive motor (6). A top plate (2) is connected to the top of the gear disk (7) through a lifting mechanism. A through round opening is provided on the top of the vehicle body (1).

2. The lifting warehouse robot according to claim 1, characterized in that, The lifting mechanism includes an upper mounting base (10) and a lower mounting base (11). The top plate (2) is mounted on the upper mounting base (10). Two sets of scissor bars (12) are provided between the upper mounting base (10) and the lower mounting base (11). One end of the scissor bar (12) is rotatably connected to the upper mounting base (10) and the lower mounting base (11) respectively through a round rod (13). The other end of the scissor bar (12) is slidably connected to the upper mounting base (10) and the lower mounting base (11) respectively through a connecting seat (15). One of the connecting seats (15) is threaded with a lead screw (8). The lead screw (8) is connected to the three output terminals of the drive motor mounted on the lower mounting base (11).

3. The lifting warehouse robot according to claim 2, characterized in that, Both ends of the connecting seat (15) are rotatably connected to rollers (14), and the rollers (14) are rotatably connected to the tracks of the upper mounting seat (10) and the lower mounting seat (11).

4. A lifting warehouse robot according to claim 3, characterized in that, The drive mechanism (3) includes a drive motor (31) and a wheel seat (32) mounted on the vehicle body (1). A drive wheel (33) is rotatably connected to the wheel seat (32). The drive wheel (33) is connected to the drive motor (31) through a chain drive mechanism (34).

5. A lifting warehouse robot according to claim 4, characterized in that, An upper disc (9) is provided between the top plate (2) and the upper mounting base (10). The upper disc (9) is located above the through-hole and its diameter is larger than that of the through-hole.

6. A lifting warehouse robot according to claim 5, characterized in that, The bottom of the vehicle body (1) is symmetrically provided with guide wheels (5).

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