Intelligent lifting structure with underneath type driving assembly

Abstract

The invention relates to the technical field of intelligent lifting equipment, and discloses a driving assembly underneath type intelligent lifting structure which comprises an electric car rack, four power lifting units, a lifting platform and a safety protection structure. Each power lifting unit comprises a stand column, a lifting chain and a servo speed reducer driving assembly, the lifting chains are in transmission connection with the stand columns and the servo speed reducer driving assemblies correspondingly, and the servo speed reducer driving assemblies drive the lifting chains to move along the stand columns so as to drive the lifting platform to achieve the lifting action. The servo speed reducer driving assembly is fixedly connected with the bottom of the electric car rack. On the basis, the servo speed reducer driving assembly is fixedly connected with the bottom of the double-layer electric vehicle rack, and it is ensured that the gravity center moves downwards to the maximum extent; and the four servo speed reducer driving assemblies are symmetrically distributed, so that the lifting structure is stressed uniformly, and the stability in the lifting process is further improved.

Description

Technical Field

[0001] This application relates to the field of intelligent lifting equipment technology, specifically to an intelligent lifting structure with a lower-mounted drive component for use in multi-story trams and other load-bearing equipment. Background Technology

[0002] In warehousing and logistics industries, trolley lifts are widely used for carrying heavy loads. Current technology employs four independent power lifting units: four columns, a lifting chain, and a servo reducer drive assembly. The servo reducer drive assembly is fixed in the upper part of the columns, concentrating the weight of the motor, transmission box, and other components high within the frame. This causes the overall center of gravity to shift upwards. Since the trolley lift needs to carry approximately 2 tons of corrugated cardboard, the strong inertial forces generated during startup and braking contribute to instability. The upward shift in the center of gravity increases the overturning moment of the frame, making it difficult to completely offset the risk of tilting even with reinforcements such as tie rods and steel cable stays. Furthermore, maintenance of the motor, chain, or sprocket box requires scaffolding and ladders, increasing the risk of falls and tool drops during high-altitude work. Summary of the Invention

[0003] In view of this, this application provides a drive component-based intelligent lifting structure. It includes a tram frame, four power lifting units, a lifting platform, and a safety protection structure. Each of the four power lifting units includes a column, a lifting chain, and a servo reducer drive assembly. The lifting chain is connected to the column and the servo reducer drive assembly respectively. The servo reducer drive assembly drives the lifting chain to move along the column, thereby driving the lifting platform to achieve lifting action. The servo reducer drive assembly is fixedly connected to the bottom of the tram frame.

[0004] According to the intelligent lifting structure with a lower-mounted drive assembly provided in this application, the servo reducer drive assembly is fixedly connected to the bottom of the double-layer tram frame to ensure maximum downward displacement of the center of gravity. The four servo reducer drive assemblies are symmetrically distributed, ensuring uniform force distribution on the lifting structure and further improving stability during the lifting process. In actual use, activating the servo reducer drive assembly drives the lifting chain to move along the column, thereby raising or lowering the lifting platform to meet the loading, unloading, and transportation needs of goods. When maintenance or repair of the servo reducer drive assembly, lifting chain, or sprocket box is required, operators can perform the work directly from the side or bottom of the lifting structure frame without the need for climbing tools, making the operation convenient and safe.

[0005] In one possible implementation of the first aspect mentioned above, the safety protection structure includes: travel and obstacle protection components, walking anti-collision components, and vision and wind protection components.

[0006] In one possible implementation of the first aspect above, the travel and obstacle protection component includes: mechanical travel switches respectively installed at the upper and lower limit positions of the column, and lifting photoelectric protection sensors. Both the mechanical travel switches and the lifting photoelectric protection sensors are signal connected to the servo reducer drive component and are used to trigger the servo reducer drive component to stop suddenly when the lifting platform runs to the limit position or senses an obstacle.

[0007] In one possible implementation of the first aspect described above, the walking collision avoidance assembly includes sponge collision avoidance strips installed at the front and rear ends of the tram frame, and a horizontal walking mechanical collision avoidance switch, which is used to automatically cut off the walking power when it comes into contact with an obstacle during travel.

[0008] In one possible implementation of the first aspect mentioned above, the vision and wind protection components include a transparent acrylic wind deflector, dual electric vehicle mirrors, and a camera and display screen monitoring system installed on the operating side of the lifting platform. The camera is installed on the top of the transparent acrylic wind deflector and is connected to the display screen of the operating panel for real-time transmission of images of the surrounding environment. Attached Figure Description

[0009] Figure 1 According to some embodiments of this application, a structural schematic diagram of a double-decker tram in a descending state is shown; Figure 2 According to some embodiments of this application, a structural schematic diagram of a double-decker tram in its raised state is shown. Detailed Implementation

[0010] This application includes, but is not limited to, a bottom-mounted intelligent lifting structure for drive components. The intelligent lifting structure described herein includes, but is not limited to, lifting structures for multi-story trams such as double-decker and triple-decker trams. For ease of description, this application uses a double-decker tram as an example. The drive components described herein include, but are not limited to, drive components combining servo motors and reducers, drive components combining stepper motors and drivers, and drive components combining asynchronous motors and frequency converters, etc., and are not limited thereto.

[0011] The specific solutions of the embodiments of this application will be described below with reference to the accompanying drawings.

[0012] Figure 1 A schematic diagram of a double-decker tram in its lowered state is shown. Figure 2 A schematic diagram of a double-decker tram in its raised state is shown. Figure 1 , 2As shown, the double-decker tram structure includes a tram frame 1 and four power lifting units. Each power lifting unit includes a column 2, a lifting chain 3, and a servo reducer drive assembly 4. The four servo reducer drive assemblies 4 are respectively installed at the bottom of the double-decker tram frame 1, forming a symmetrical support and lifting structure. The lifting chain 3 is connected to the column 2 and the servo reducer drive assembly 4 for transmission. The servo reducer drive assembly 4 drives the lifting chain 3 to move, realizing the lifting action of the double-decker tram lifting platform 5.

[0013] Specifically, the servo reducer drive assembly 4 is fixedly connected to the bottom of the double-decker tram frame 1 to ensure that the center of gravity is lowered to the maximum extent; the four servo reducer drive assemblies 4 are symmetrically distributed to make the double-decker tram frame 1 bear force evenly and further improve the stability during the lifting process.

[0014] In actual use, the servo reducer drive assembly 4 is activated, which drives the lifting chain 3 to move along the column 2, thereby raising or lowering the lifting platform 5 to meet the loading, unloading, and transportation needs of goods. When maintenance or repair is required on the servo reducer drive assembly 4, the lifting chain 3, or the sprocket box, operators can operate directly from the side or bottom of the double-decker tram frame 1 without the need for climbing tools, making the operation convenient and safe.

[0015] like Figure 1 , 2 As shown, the double-decker tram includes a safety protection structure, which includes: travel and obstacle protection components, walking collision protection components, and visibility and wind protection components.

[0016] The travel and obstacle protection components include: mechanical travel switches installed at the upper and lower limit positions of the column 2, and a lifting photoelectric protection sensor. When the lifting platform 5 reaches its limit position or senses an obstacle, the servo reducer drive component 4 immediately triggers an emergency stop, providing dual protection to avoid overtravel or collision accidents.

[0017] The walking collision avoidance components consist of foam collision avoidance strips installed at the front and rear ends of the double-decker tram frame 1, along with horizontal walking mechanical collision avoidance switches. When the tram comes into contact with an obstacle during operation, the walking power is automatically cut off.

[0018] The visibility and wind protection components include: a transparent acrylic wind deflector installed on the operating side of the lifting platform 5, which prevents goods from being blown away by wind resistance during movement, while not obstructing the operator's view. Simultaneously, a dual-lens reflex mirror and a camera + display screen monitoring system are installed. The camera is mounted on top of the transparent acrylic wind deflector, transmitting real-time images of the surrounding environment to the operating panel display screen, eliminating blind spots.

[0019] In the accompanying drawings, some structural or methodological features may be shown in a specific arrangement and / or order. However, it should be understood that such a specific arrangement and / or order may not be necessary. Rather, in some embodiments, these features may be arranged in a manner and / or order different from that shown in the illustrative drawings. Furthermore, the inclusion of structural or methodological features in a particular figure does not imply that such features are required in all embodiments, and in some embodiments, these features may be omitted or may be combined with other features.

[0020] It should be noted that all units / modules mentioned in the device embodiments of this application are logical units / modules. Physically, a logical unit / module can be a physical unit / module, a part of a physical unit / module, or a combination of multiple physical units / modules. The physical implementation of these logical units / modules themselves is not the most important factor; the combination of functions implemented by these logical units / modules is the key to solving the technical problems proposed in this application. Furthermore, to highlight the innovative aspects of this application, the above-described device embodiments of this application have not introduced units / modules that are not closely related to solving the technical problems proposed in this application. This does not mean that the above-described device embodiments do not contain other units / modules.

Claims

1. A drive-component-mounted intelligent lifting structure, comprising a tram frame (1), four power lifting units, a lifting platform (5), and a safety protection structure; each of the four power lifting units comprises a column (2), a lifting chain (3), and a servo reducer drive assembly (4), wherein the lifting chain (3) is connected to the column (2) and the servo reducer drive assembly (4) respectively, and the servo reducer drive assembly (4) drives the lifting chain (3) to move along the column (2) to drive the lifting platform (5) to achieve lifting action, characterized in that: The servo reducer drive assembly (4) is fixedly connected to the bottom of the tram frame (1).

2. The intelligent lifting structure with a lower-mounted drive component according to claim 1, characterized in that: The safety protection structure includes: travel and obstacle protection components, walking anti-collision components, and vision and wind protection components.

3. The intelligent lifting structure with the drive component positioned below the center as described in claim 2, characterized in that: The travel and obstacle protection components include: mechanical travel switches installed at the upper and lower limit positions of the column (2) respectively, and lifting photoelectric protection sensors. The mechanical travel switches and lifting photoelectric protection sensors are both connected to the servo reducer drive component (4) for signal connection, and are used to trigger the servo reducer drive component (4) to stop suddenly when the lifting platform (5) runs to the limit position or senses an obstacle.

4. The intelligent lifting structure with the drive component positioned below the ground according to claim 2, characterized in that: The walking anti-collision assembly includes sponge anti-collision strips installed at the front and rear ends of the tram frame (1), and a horizontal walking mechanical anti-collision switch, which is used to automatically cut off the walking power when it comes into contact with an obstacle during the journey.

5. The intelligent lifting structure with the drive component positioned below the center as described in claim 2, characterized in that: The vision and wind protection components include a transparent acrylic wind deflector, dual electric vehicle mirrors, and a camera and display screen monitoring system installed on the operating side of the lifting platform (5). The camera is installed on the top of the transparent acrylic wind deflector and is connected to the display screen of the operating panel for real-time transmission of the surrounding environment.

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