A single screw lifting mechanism

Abstract

This utility model relates to the field of automated guided vehicles (AGVs), specifically to a single-screw lifting mechanism to solve the problem that existing lifting mechanisms are too tall to adapt to low, confined spaces. The technical solution of this utility model is: a single-screw lifting mechanism, comprising: a rotating mechanism configured to contact the object being lifted and rotate it; a lifting device including a lifting body and a lifting mechanism, the lifting body being located below the rotating mechanism and connected to the lifting mechanism, the lifting mechanism being configured to move in two directions and having a first state and a second state; when the lifting mechanism is in the first state, it lifts the object; when the lifting mechanism is in the second state, it retracts, reducing the overall longitudinal space; and a support plate installed between the rotating mechanism and the lifting device.

Description

Technical Field

[0001] This utility model relates to the field of automated guided vehicles (AGVs), and in particular to a single screw lifting mechanism. Background Technology

[0002] In today's booming modern logistics and intelligent manufacturing, the automation and intelligence of production processes have become key elements for enhancing enterprises' core competitiveness. Automated Guided Vehicles (AGVs), as core equipment in automated transportation systems, undertake the important task of efficient and precise material handling. The degree of performance optimization and the breadth of functional expansion play a crucial role in comprehensively improving production efficiency and significantly reducing labor costs, directly affecting the operational efficiency and economic benefits of the entire production system.

[0003] Currently, most AGV lifting mechanisms on the market use multi-stage screws or long-stroke screw assemblies to achieve sufficient lifting height. While this design met basic lifting needs for a period, its drawbacks have become increasingly apparent as application scenarios become more complex and performance requirements for AGVs rise. Specifically, increasing the screw length directly leads to a significant increase in the overall height of the AGV, causing a series of thorny problems.

[0004] On the one hand, in special operating scenarios such as low door frames, bottom shelves, and various confined spaces, tall AGVs are prone to collisions with obstacles in the surrounding environment, and may even be unable to enter these spaces at all due to their excessive height. This not only severely limits the application scope of AGVs, preventing them from playing their due role in more complex scenarios, but may also force companies to rely on traditional manual handling methods in certain production processes, reducing the overall level of production automation.

[0005] On the other hand, the long lead screw structure inevitably shifts the center of gravity of the load carried by the AGV upwards. During AGV operation, an excessively high center of gravity significantly exacerbates the vehicle's sway, especially during high-speed turns or sudden stops, further reducing stability and greatly increasing the risk of tipping over. This instability not only affects the accuracy and safety of material handling but can also damage the AGV itself, increasing equipment maintenance costs and downtime, ultimately impacting the continuity and stability of the entire production process.

[0006] Therefore, this application develops a single screw lifting mechanism to solve the problems existing in the prior art. Utility Model Content

[0007] The purpose of this invention is to provide a single screw lifting mechanism to solve the problem that the overall height of existing lifting mechanisms is too high, making them unsuitable for low and confined spaces.

[0008] The technical solution of this utility model is: a single screw lifting mechanism, comprising: A rotating mechanism is configured to contact the lifted item and cause the lifted item to rotate. A lifting device includes a lifting body and a lifting mechanism. The lifting body is located below the rotating mechanism and connected to the lifting mechanism. The lifting mechanism is configured to move in two directions and has a first state and a second state. When the lifting mechanism is in the first state, it lifts the item. When the lifting mechanism is in the second state, it retracts the lifting mechanism to reduce the overall vertical space. A support plate is installed between the rotating mechanism and the lifting device.

[0009] Preferably, the lifting mechanism includes at least one first rotating part and at least one second rotating part, the first rotating part and the second rotating part being connected and configured such that their rotation directions are always opposite when the lifting mechanism moves between a first state and a second state.

[0010] Preferably, the lifting mechanism includes two sets of first rotating parts and second rotating parts, and the two sets are connected by a connecting rod so that the first rotating parts and second rotating parts of the two sets can move synchronously.

[0011] Preferably, the rotating mechanism is equipped with a first driving mechanism, the lifting device includes a second driving mechanism, and the first driving mechanism and the second driving mechanism are arranged parallel to and adjacent to each other between the support plate and the lifting device.

[0012] Preferably, the drive end of the first drive mechanism is fixedly connected to a drive gear and connected to the rotating mechanism. A driven wheel is provided inside the lifting body. The drive end of the second drive mechanism and the driven wheel form a meshing transmission pair, thereby driving the lifting body to rise and fall.

[0013] Preferably, bearings are symmetrically arranged on both sides of the driven wheel along its axial direction to provide support.

[0014] Preferably, the support plate is provided with a rotation sensing module for detecting the state of the rotation mechanism, and the lifting body is provided with a lifting sensing module for detecting its lifting height.

[0015] Compared with the prior art, the advantages of this utility model are: (1) The lifting mechanism has a first state and a second state. In the first state, it can lift items to a specified height to meet different work height requirements. When switching to the second state, it can be folded up to effectively reduce the vertical space occupation. It is convenient to move around in space-constrained environments such as low door frames and the bottom of shelves, and avoids being unable to enter or colliding due to the vehicle body being too high, thus adapting to more complex work scenarios. (2) The first drive mechanism and the second drive mechanism are arranged horizontally and adjacent to each other between the support plate and the lifting device, making full use of the limited space, reducing the longitudinal space occupied, and making the overall structure more compact. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a partial cross-sectional view of a single-screw lifting mechanism according to the present invention; Figure 2 This is a schematic diagram of the structure of a single screw lifting mechanism according to the present invention; Figure 3 This is a schematic diagram of the lifting mechanism described in this utility model.

[0017] The components are: 1. Rotating mechanism; 2. Lifting device; 21. Lifting body; 22. Lifting mechanism; 221. First rotating part; 222. Second rotating part; 223. Connecting rod; 23. Second drive mechanism; 24. Driven wheel; 25. Bearing; 3. Support plate; 4. First drive mechanism; 41. Drive gear; 5. Rotation sensing module; 6. Lifting sensing module. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments: like Figures 1-3 As shown, a single-screw lifting mechanism includes a rotating mechanism 1, a lifting device 2, and a support plate 3. The rotating mechanism 1 is located at the top of the single-screw lifting mechanism 22, directly contacting the object being lifted. It is driven to rotate by a first drive mechanism 4 connected to it, thus rotating the object being lifted. The lifting device 2 includes a lifting body 21 and a lifting mechanism 22. The lifting body 21 is installed below the rotating mechanism 1 and hinged to the lifting mechanism 22. The support plate 3 is horizontally installed between the rotating mechanism 1 and the lifting device 2, ensuring the structural stability and reliability of the entire lifting mechanism 22 during operation.

[0019] In this embodiment, the lifting mechanism 22 is configured to move in two opposite directions and has a first state and a second state. When the lifting mechanism 22 is in the first state, it can lift the items placed on the rotating mechanism 1 upwards to a specified height position through its own movement to adapt to different working height requirements. When the lifting mechanism 22 switches to the second state, it retracts, effectively reducing the space occupied by the entire lifting mechanism 22 in the longitudinal direction. This allows the single-screw lifting mechanism 22 to effectively avoid the problem of being unable to enter or colliding due to the vehicle body being too tall in working environments with limited space, such as low door frames and the bottom of shelves, enabling it to adapt to more complex working scenarios.

[0020] Specifically, the lifting mechanism 22 includes two first rotating parts 221 and two second rotating parts 222. The first rotating parts 221 and the second rotating parts 222 are connected by a hinge. During the operation of the lifting mechanism 22, the rotation directions of the first rotating parts 221 and the second rotating parts 222 are always opposite. When the lifting mechanism 22 changes from the first state to the second state, the first rotating parts 221 rotate counterclockwise, and the second rotating parts 222 rotate clockwise simultaneously; and vice versa. Compared with the traditional single-direction rotation design, the reverse rotation method can make more efficient use of space, allowing the lifting mechanism 22 to retract, thus occupying less longitudinal space. This makes it more practical in low warehouse shelves or narrow production lines, and allows for easier movement and operation.

[0021] In practical applications, a first rotating part 221 and a second rotating part 222 form a group and are connected by a connecting rod 223. When the lifting mechanism 22 starts working, due to the connecting action of the connecting rod 223, the two groups of first rotating parts 221 and second rotating parts 222 can move synchronously. Specifically, if the first rotating part 221 of one group starts to rotate in a certain direction, through the transmission of the connecting rod 223, the first rotating part 221 of the other group will immediately rotate in the same direction and speed; similarly, the two groups of second rotating parts 222 will also maintain synchronous opposite rotation, thereby ensuring the coordination and consistency of all parts of the entire lifting mechanism 22 during movement.

[0022] Furthermore, the lifting device 2 includes a second drive mechanism 23, and the first drive mechanism 4 is horizontally arranged parallel and adjacent to the second drive mechanism 23 between the support plate 3 and the lifting device 2. This method makes full use of the limited space, reduces the longitudinal space occupied, and further reduces the overall structure size. In addition, the drive end of the first drive mechanism 4 is fixedly connected to a drive gear 41, which is directly connected to the rotating mechanism 1, thereby transmitting power to the rotating mechanism 1 to achieve contact with the lifted item and drive it to rotate. The lifting body 21 is equipped with a driven wheel 24. The drive end of the second drive mechanism 23 and the driven wheel 24 form a meshing transmission pair. When the second drive mechanism 23 is started, its drive end rotates, transmitting power to the driven wheel 24 through the meshing transmission pair. The rotation of the driven wheel 24 drives the lifting body 21 to perform lifting and lowering movements, thereby realizing the lifting or lowering operation of the item.

[0023] To ensure the stability and reliability of the driven wheel 24 during operation, bearings 25 are symmetrically arranged on both sides of its axial direction. When the second drive mechanism 23 starts and transmits power to the driven wheel 24 through the meshing transmission pair, the driven wheel 24 begins to rotate. During the rotation of the driven wheel 24, it will be subjected to the driving force from the second drive mechanism 23 and the reaction force from the lifting body 21 and the load. These forces will cause the driven wheel 24 to vibrate and deviate radially. The bearings 25 symmetrically arranged on both sides of the axial direction can effectively limit the displacement of the driven wheel 24, so that it always keeps on the predetermined rotation axis and operates stably, which greatly improves the smoothness of the operation of the driven wheel 24, thereby ensuring the stability and reliability of the lifting movement of the entire lifting mechanism 22.

[0024] Furthermore, a rotation sensing module 5 and a lifting sensing module 6 are also installed on the support plate 3. The rotation sensing module 5 can detect the state of the rotating mechanism 1 in real time and accurately, and continuously obtain information such as the rotation angle, speed and direction of the rotating mechanism 1. The lifting sensing module 6 can accurately detect the lifting height position of the lifting body 21, thereby realizing real-time control.

[0025] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A single filament rod lifting mechanism characterized by, include: The rotating mechanism (1) is configured to contact the lifted item and cause the lifted item to rotate; The lifting device (2) includes a lifting body (21) and a lifting mechanism (22). The lifting body (21) is located below the rotating mechanism (1) and connected to the lifting mechanism (22). The lifting mechanism (22) is configured to move in two directions and has a first state and a second state. When the lifting mechanism (22) is in the first state, it lifts the item. When the lifting mechanism (22) is in the second state, it retracts the lifting mechanism (22) to reduce the overall vertical space. The support plate (3) is installed between the rotating mechanism (1) and the lifting device (2).

2. A single filament rod lifting mechanism according to claim 1, wherein: The lifting mechanism (22) includes at least one first rotating part (221) and at least one second rotating part (222), the first rotating part (221) and the second rotating part (222) being connected and configured such that their rotation directions are always opposite when the lifting mechanism (22) moves between a first state and a second state.

3. A single filament rod lifting mechanism according to claim 2, wherein: The lifting mechanism (22) includes two sets of first rotating parts (221) and second rotating parts (222), and the two sets are connected by a connecting rod (223) so that the first rotating parts (221) and second rotating parts (222) of the two sets can move synchronously.

4. A single filament rod lifting mechanism according to claim 1, wherein: The rotating mechanism (1) is equipped with a first driving mechanism (4), the lifting device (2) includes a second driving mechanism (23), and the first driving mechanism (4) and the second driving mechanism (23) are arranged in parallel and adjacent to each other between the support plate (3) and the lifting device (2).

5. A single filament rod lifting mechanism according to claim 4, wherein: The first drive mechanism (4) has a drive gear (41) fixedly connected to its drive end and connected to the rotating mechanism (1). The lifting body (21) is provided with a driven wheel (24). The drive end of the second drive mechanism (23) and the driven wheel (24) form a meshing transmission pair, thereby driving the lifting body (21) to rise and fall.

6. A single filament rod lifting mechanism (22) according to claim 5, characterized in that: The driven wheel (24) has bearings (25) arranged symmetrically on both sides of its axial direction to provide support.

7. A single filament rod lifting mechanism according to claim 5 wherein: The support plate (3) is provided with a rotation sensing module (5) for detecting the state of the rotation mechanism (1), and the lifting body (21) is provided with a lifting sensing module (6) for detecting its lifting height.

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