Aerial work platform chassis leveling mechanism

Abstract

The utility model relates to a kind of high-altitude working truck chassis leveling mechanism, including connecting sleeve, horizontal electric cylinder, connecting plate, vertical electric cylinder, self-locking roller, the connecting sleeve is correspondingly installed in chassis front and rear sides, horizontal electric cylinder is installed in connecting sleeve inside, and the telescopic rod end of horizontal electric cylinder is fixedly connected with connecting plate, vertical electric cylinder is installed in connecting plate bottom, and the telescopic rod end of vertical electric cylinder is fixedly connected with backing pad, self-locking roller is installed in backing pad bottom, connecting plate and connecting sleeve between being equipped with guiding mechanism, horizontal sensor is installed in the inside center of connecting plate, and laser ranging sensor is installed in inside two sides, horizontal sensor, laser ranging sensor, horizontal electric cylinder, vertical electric cylinder are connected with the control center of high-altitude working truck respectively.The utility model has the advantages of simple structure, fast response speed, high leveling accuracy, strong adaptability, high safety and stability, and can better meet the use demand of high-altitude working truck under complex working condition.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a leveling mechanism for the chassis of an aerial work vehicle. Background Technology

[0002] Aerial work platforms are widely used in construction, municipal engineering, power, and fire protection, and the stability of the platform chassis is crucial for operational safety. For example, Chinese utility model patent CN204870955U discloses a hybrid boom aerial work platform chassis leveling system, which primarily uses vertical and horizontal hydraulic cylinders for adjustment. The chassis leveling is automated instead of manual, driven by a detection switch, an eight-cell solenoid valve, and a PLC controller, enabling real-time leveling and improving both efficiency and accuracy. However, this solution uses a hydraulic system for leveling, which is complex and poses a risk of hydraulic oil leakage. Furthermore, the hydraulic system has a relatively slow response time and exhibits lag, limiting leveling accuracy and impacting operational efficiency. Additionally, this solution struggles to find optimal support points on complex terrain, resulting in poor leveling performance. Summary of the Invention

[0003] This utility model aims to address the shortcomings of existing technologies by providing a leveling mechanism for the chassis of an aerial work platform.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a leveling mechanism for a high-altitude work vehicle chassis, comprising a connecting sleeve, a horizontal electric cylinder, a connecting plate, a vertical electric cylinder, and a self-locking roller. Several connecting sleeves are correspondingly installed on the front and rear sides of the chassis. The horizontal electric cylinder is installed inside the connecting sleeve, and the end of the telescopic rod of the horizontal electric cylinder is fixedly connected to the connecting plate. The vertical electric cylinder is installed at the bottom of the connecting plate, and a pad is fixedly connected to the end of the telescopic rod of the vertical electric cylinder. The self-locking roller is installed at the bottom of the pad. A guide mechanism is provided between the connecting plate and the connecting sleeve. A horizontal sensor is installed in the center of the connecting plate, and laser rangefinders are installed on both sides of the connecting plate. The horizontal sensor, the laser rangefinder, the horizontal electric cylinder, and the vertical electric cylinder are respectively connected to the control center of the high-altitude work vehicle.

[0005] Specifically, the upper and lower parts of the outer wall of the connecting sleeve, near the chassis, are provided with several reinforcing plates that are fixed to the chassis.

[0006] Specifically, the guiding mechanism includes guide rings fixed to both sides of the connecting sleeve, a guide rod slidably sleeved inside the guide ring, and the guide rod fixed to the connecting plate.

[0007] Specifically, the bottom of the connecting plate is equipped with a protective sleeve, and the fixed cylinder body of the vertical electric cylinder is located inside the protective sleeve.

[0008] Specifically, the laser rangefinder is an integrated laser rangefinder.

[0009] In particular, the surface of the self-locking rollers is decorated with anti-slip patterns.

[0010] The beneficial effects of this utility model are as follows: By incorporating a horizontal electric cylinder, a vertical electric cylinder, a horizontal sensor, a laser rangefinder, and a self-locking roller, the structure is relatively simple, reducing the complexity of the hydraulic system. The electric cylinder has a faster response speed than the hydraulic cylinder, enabling it to complete the leveling action in a short time and improving work efficiency. The laser rangefinder and horizontal sensor can measure the ground undulation angle and chassis tilt angle in real time, providing high-precision feedback data. Based on the real-time feedback data, the control center can make the leveling process faster and more accurate. Simultaneously, the laser rangefinder can measure the ground undulation in real time, helping the control center find the optimal support point, achieving stable leveling even under complex ground conditions. The self-locking roller can contact the ground more smoothly, further improving the stability and reliability of the leveling mechanism. Attached Figure Description

[0011] Figure 1 This is a top view of the present invention;

[0012] Figure 2 This is the front view of the present invention;

[0013] In the diagram: 1-Connecting sleeve; 2-Horizontal electric cylinder; 3-Connecting plate; 4-Vertical electric cylinder; 5-Self-locking roller; 6-Chassis; 7-Plate; 8-Horizontal sensor; 9-Laser rangefinder sensor; 10-Reinforcing plate; 11-Guide ring; 12-Guide rod; 13-Protective sleeve;

[0014] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] like Figures 1-2 As shown, a leveling mechanism for an aerial work platform chassis includes a connecting sleeve 1, a horizontal electric cylinder 2, a connecting plate 3, a vertical electric cylinder 4, and self-locking rollers 5. Several connecting sleeves 1 are correspondingly installed on the front and rear sides of the chassis 6. Several reinforcing plates 10, fixed to the chassis 6, are provided on the upper and lower parts of the outer wall of the connecting sleeve 1 near the chassis 6. The horizontal electric cylinder 2 is installed inside the connecting sleeve 1, and the end of the telescopic rod of the horizontal electric cylinder 2 is fixed to the connecting plate 3. A guide mechanism is provided between the connecting plate 3 and the connecting sleeve 1. The guide mechanism includes guide rings 11 fixed to both sides of the connecting sleeve 1, and guide rods 12 are slidably sleeved inside the guide rings 11. The guide rods 12 are fixed to the connecting plate 3. The guide mechanism ensures more stable movement of the connecting plate 3.

[0017] A vertical electric cylinder 4 is installed at the bottom of the connecting plate 3, and a pad 7 is fixed to the end of the telescopic rod of the vertical electric cylinder 4. A self-locking roller 5 is installed at the bottom of the pad 7, and the surface of the self-locking roller 5 is provided with anti-slip patterns. A protective sleeve 13 is provided at the bottom of the connecting plate 3, and the fixed cylinder body of the vertical electric cylinder 4 is located inside the protective sleeve 13. The self-locking roller 5 can better adapt to potholes, slopes, or other irregular terrains, so that the leveling support leg composed of the vertical electric cylinder 4 and the self-locking roller 5 can contact the ground more smoothly, enhancing the stability of the chassis 6. The self-locking roller 5 can be made of high-strength, wear-resistant materials, such as high-strength plastics or metal alloys, to improve the load-bearing capacity and service life of the roller. The anti-slip patterns on the surface of the wheel can increase the friction with the ground and prevent the wheel from slipping on wet and slippery ground.

[0018] The horizontal electric cylinder 2 is designed to ensure that the self-locking roller 5 is positioned at the optimal support point on the ground. The vertical electric cylinder 4 is designed to adjust the height, making it easier for the chassis 6 to remain level. Compared to hydraulic cylinders, electric cylinders can achieve more precise leveling without the risk of hydraulic oil leakage, and are more environmentally friendly.

[0019] A horizontal sensor 8 is installed in the center of the connecting plate 3, and laser rangefinders 9 are installed on both sides of the plate. The laser rangefinders 9 are integrated laser rangefinders. The horizontal sensor 8, the laser rangefinders 9, the horizontal electric cylinder 2, and the vertical electric cylinder 4 are connected to the control center of the aerial work platform.

[0020] When the aerial work platform vehicle moves to the construction position, the horizontal sensor 8 first detects the tilt angle of the chassis 6 and feeds the data back to the control center. Based on the feedback from the horizontal sensor 8, the control center makes a preliminary judgment on the range of adjustment required. At this time, the control center controls the horizontal electric cylinder 2 to extend and retract, pushing the connecting plate 3 to move horizontally. As the connecting plate 3 moves, the laser rangefinder 9 measures the vertical distance between the connecting plate 3 and the ground in real time. The laser rangefinder 9 continuously collects ground height data and feeds this data back to the control center. Based on the feedback from the laser rangefinder 9, the control center draws a map of the ground. The system assesses the undulations of the surface and identifies a relatively flat area as the optimal support point. Once the optimal support point is found, the control center stops the movement of the horizontal electric cylinder 2, ensuring that the connecting plate 3 is in the correct position. After the horizontal electric cylinder 2 stops, the control center activates the vertical electric cylinder 4, which moves the self-locking roller 5 downwards, lifting the downward-tilting side of the chassis 6. The extension and retraction of the vertical electric cylinder 4 is adjusted based on real-time feedback from the level sensor 8, ensuring that the chassis 6 gradually returns to a horizontal state. When the chassis 6 reaches a horizontal state, the vertical electric cylinder 4 stops extending and retracting, the self-locking roller 5 locks, and the leveling process is completed.

[0021] This invention features a relatively simple structure by incorporating a horizontal electric cylinder 2, a vertical electric cylinder 4, a horizontal sensor 8, a laser rangefinder 9, and a self-locking roller 5, reducing the complexity of the hydraulic system. The electric cylinders respond faster than hydraulic cylinders, enabling leveling actions to be completed quickly and improving work efficiency. The laser rangefinder 9 and the horizontal sensor 8 can measure the ground undulation angle and chassis tilt angle in real time, providing high-precision feedback data. Based on this real-time feedback data, the control center can make the leveling process faster and more accurate. Simultaneously, the laser rangefinder 9 can measure ground undulations in real time, helping the control center find the optimal support point, achieving stable leveling even under complex ground conditions. The self-locking roller 5 provides smoother contact with the ground, further enhancing the stability and reliability of the leveling mechanism.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A leveling mechanism for the chassis of an aerial work platform vehicle, characterized in that, The system includes a connecting sleeve (1), a horizontal electric cylinder (2), a connecting plate (3), a vertical electric cylinder (4), and a self-locking roller (5). Several connecting sleeves (1) are installed on the front and rear sides of the chassis (6). The horizontal electric cylinder (2) is installed inside the connecting sleeve (1), and the end of the telescopic rod of the horizontal electric cylinder (2) is fixedly connected to the connecting plate (3). The vertical electric cylinder (4) is installed at the bottom of the connecting plate (3), and a pad (7) is fixedly connected to the end of the telescopic rod of the vertical electric cylinder (4). The self-locking roller (5) is installed at the bottom of the pad (7). A guide mechanism is provided between the connecting plate (3) and the connecting sleeve (1). A horizontal sensor (8) is installed in the center of the connecting plate (3), and laser rangefinders (9) are installed on both sides inside. The horizontal sensor (8), the laser rangefinder (9), the horizontal electric cylinder (2), and the vertical electric cylinder (4) are respectively connected to the control center of the aerial work vehicle.

2. The aerial work platform chassis leveling mechanism according to claim 1, characterized in that, The upper and lower parts of the outer wall of the connecting sleeve (1) near the chassis (6) are provided with several reinforcing plates (10) that are fixed to the chassis (6).

3. The aerial work platform chassis leveling mechanism according to claim 1, characterized in that, The guiding mechanism includes guide rings (11) fixed to both sides of the connecting sleeve (1), and guide rods (12) are slidably sleeved inside the guide rings (11). The guide rods (12) are fixed to the connecting plate (3).

4. The aerial work platform chassis leveling mechanism according to claim 1, characterized in that, The bottom of the connecting plate (3) is provided with a protective sleeve (13), and the fixed cylinder body of the vertical electric cylinder (4) is located inside the protective sleeve (13).

5. The aerial work platform chassis leveling mechanism according to claim 1, characterized in that, The laser rangefinder (9) is an integrated laser rangefinder.

6. The aerial work platform chassis leveling mechanism according to claim 1, characterized in that, The surface of the self-locking roller (5) is provided with anti-slip patterns.

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