Self-propelled new energy overhead working truck chassis

Abstract

The invention relates to the technical field of new energy overhead working trucks, in particular to a self-propelled new energy overhead working truck chassis which comprises a chassis assembly and supporting legs, four corners of the chassis assembly are rotatably connected with connecting pieces, a lithium battery is arranged in the chassis assembly, one end of each supporting leg is rotatably connected with the corresponding connecting piece, and the other end of each supporting leg is rotatably connected with the corresponding connecting piece. And the other ends of the supporting legs are rotationally connected with the wheel steering parts. According to the improved chassis, the supporting leg hydraulic oil cylinders are combined with the gradienter at the bottom of the connecting piece, the height and levelness of the chassis can be automatically adjusted, it is ensured that the vehicle can keep a stable operation posture under different terrain conditions, and the vehicle is suitable for various outdoor and indoor operation sites; the vehicle has the special driving capabilities of turning around in situ, driving transversely, driving obliquely, driving in a curve and the like, and can easily meet various complex road conditions and operation requirements on narrow streets, crowded operation sites or irregular-shaped areas.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy aerial work vehicles, in particular to a self-propelled new energy aerial work vehicle chassis. Background Art

[0002] The new energy aerial work vehicle is a special vehicle used for aerial work. It mainly uses new energy as the power source. It provides power to the vehicle's driving system through an on-board battery pack (such as a lithium battery, etc.) and drives the motor to operate, thereby enabling the vehicle to move.

[0003] The chassis is the basic structural part of the entire vehicle, playing a key role in support and load-bearing. It is located at the bottom of the vehicle and connects the main components of the vehicle body, including wheels, legs, battery packs, and the main body of the vehicle.

[0004] In the process of realizing the present invention, the inventors found that the prior art has the following problems: 1. Most of the current domestic chassis structures are unable to adapt to all terrains, and bridge expansion only changes the wheelbase to increase the stability of the chassis, or adds four legs to achieve vehicle body stability during operation; 2. It is impossible to increase the overall stability of the equipment by changing the chassis wheelbase, track, or lowering its own height (lowering the center of gravity), and it is impossible to achieve on-the-spot U-turns, lateral driving, oblique driving, and curved driving. Summary of the invention

[0005] The purpose of the present invention is to provide a self-propelled new energy aerial work vehicle chassis to solve the problems of the inability to adapt to all terrains, the inability to make U-turns on the spot, lateral driving, oblique driving, and curved driving proposed in the above-mentioned background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-propelled new energy aerial work vehicle chassis, including a chassis assembly and outriggers, the four corners of the chassis assembly are rotatably connected with connecting parts, a lithium battery is arranged inside the chassis assembly, one end of the outrigger is rotatably connected to the connecting part, the other end of the outrigger is rotatably connected to the wheel steering part, and the outrigger hydraulic cylinder is arranged inside the outrigger, one side of the inner wall of the wheel steering part is rotatably connected to the wheel hydraulic cylinder, and one end of the outer wall of the wheel steering part is rotatably connected to the wheel.

[0006] Further preferably, the legs are relatively distributed in pairs as a group and are symmetrically distributed along the midpoint line of the chassis assembly, and the top of the connecting piece is fixedly connected to a servo motor, and the output end of the servo motor is fixedly connected to the top of the leg on the corresponding side.

[0007] Further preferably, a battery slot for embedded installation of a lithium battery is fixedly connected between the chassis assemblies, and one end of the battery slot is connected to a door panel via bolts.

[0008] Further preferably, one end of the outrigger hydraulic cylinder is rotatably connected to the inner wall of the connecting piece, and the power output end of the outrigger hydraulic cylinder is rotatably connected to the wheel steering piece, and the chassis assembly forms a lifting structure through the outrigger hydraulic cylinder.

[0009] Further preferably, the power output end of the wheel hydraulic cylinder is connected to the wheel rotationally, and an angle sensor is fixedly connected to one side of the outrigger adjacent to the wheel steering member, and the wheel is horizontally rotated by 0-90° through the wheel hydraulic cylinder.

[0010] Further preferably, a servo motor is provided on one side of the wheel, and the axis of the wheel is fixedly connected to the output end of the servo motor, and the legs and the wheel which are relatively distributed on one side of the chassis assembly constitute relative movement.

[0011] Further preferably, a level is fixedly connected to the bottom of the connecting piece at a position corresponding to the upper servo motor.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the present invention, through the coordinated action of the wheel hydraulic cylinder, the angle sensor and the servo motor, the vehicle has special driving capabilities such as turning around on the spot, driving sideways, driving diagonally and driving in curves. It can easily cope with various complex road conditions and operating requirements in narrow streets, crowded work sites or irregularly shaped areas without relying on a large turning space or performing cumbersome reversing and adjustment operations, which greatly improves the accessibility and operational flexibility of the vehicle in different scenarios.

[0014] In the present invention, the chassis can effectively cope with uneven terrain such as flat roads or earth slopes, potholes, etc. It can stably travel in a straight line or retreat on flat ground. When facing complex terrain, the outrigger hydraulic cylinder combined with the spirit level at the bottom of the connecting piece can automatically adjust the height and level of the chassis to ensure that the vehicle can maintain a stable working posture under different terrain conditions and adapt to various outdoor and indoor work sites, which significantly broadens the scope of application of the vehicle. At the same time, the outriggers are symmetrically distributed in a specific way and cooperate with the connecting pieces and wheel steering pieces to cooperate with the outrigger hydraulic cylinders to realize chassis lifting and wheelbase adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0016] Figure 2 It is a side view structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the outrigger and wheel steering structure of the present invention;

[0018] Figure 4 It is a schematic diagram of the top structure of the present invention.

[0019] In the figure: 1. chassis assembly; 2. outrigger; 3. connecting parts; 4. lithium battery; 5. wheel steering parts; 6. outrigger hydraulic cylinder; 7. wheel hydraulic cylinder; 8. wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 The present invention provides a technical solution: a self-propelled new energy aerial work vehicle chassis, including a chassis assembly 1 and a leg 2, the four corners of the chassis assembly 1 are rotatably connected with a connecting piece 3, a lithium battery 4 is arranged inside the chassis assembly 1, one end of the leg 2 is rotatably connected to the connecting piece 3, the other end of the leg 2 is rotatably connected to a wheel steering piece 5, a leg hydraulic cylinder 6 is arranged inside the leg 2, one side of the inner wall of the wheel steering piece 5 is rotatably connected to a wheel hydraulic cylinder 7, and one end of the outer wall of the wheel steering piece 5 is rotatably connected to a wheel 8.

[0022] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the legs 2 are symmetrically distributed along the midpoint line of the chassis assembly 1 in pairs, and the tops of the connectors 3 are fixedly connected to servo motors, and the output ends of the servo motors are fixedly connected to the tops of the legs 2 on the corresponding side; the servo motors form a clear and tight connection with the legs 2 and the connectors 3, so that the steering action of the legs 2 can be more conveniently coordinated with other parts of the vehicle, so that the vehicle can perform a special form of turning around on the spot, which greatly improves the vehicle's operating flexibility and accessibility in narrow and complex area scenarios.

[0023] In this embodiment, Figure 1 and Figure 2 As shown, a battery slot for embedded installation of a lithium battery 4 is fixedly connected between the chassis assembly 1, and one end of the battery slot is connected to a door panel via bolts; the structure of the battery slot makes the maintenance and inspection of the lithium battery 4 very convenient, and the battery slot can be quickly opened to directly access the internal lithium battery 4 by simply removing the bolts on the door panel.

[0024] In this embodiment, Figure 1 , Figure 2 and Figure 3As shown, one end of the outrigger hydraulic cylinder 6 is rotatably connected to the inner wall of the connecting member 3, and the power output end of the outrigger hydraulic cylinder 6 is rotatably connected to the wheel steering member 5, and the chassis assembly 1 forms a lifting structure through the outrigger hydraulic cylinder 6; when operation is required, the outrigger hydraulic cylinder 6 is extended, the chassis assembly 1 is lowered, and the wheelbase between the wheels 8 is increased accordingly, thus completing the increase of the wheelbase and wheelbase by lowering the center of gravity of the equipment. When the ground is uneven and there are slopes or potholes, the four outrigger hydraulic cylinders 6 can automatically adjust the extension and retraction amount according to the control unit algorithm to keep the chassis assembly 1 always level to complete the operation. This flexibility allows the vehicle to be adjusted according to actual operation needs and site conditions to adapt to different operation scenarios.

[0025] In this embodiment, Figure 1 As shown, the power output end of the wheel hydraulic cylinder 7 is rotatably connected to the wheel 8, and an angle sensor is fixedly connected to the side of the support leg 2 adjacent to the wheel steering member 5, and the wheel 8 is horizontally rotated 0-90° through the wheel hydraulic cylinder 7; it can realize on-the-spot U-turn, lateral driving, oblique driving, and curved driving, and has the advantage of higher degree of freedom. The steering structure formed by the wheel 8 through the wheel hydraulic cylinder 7 enables it to realize various special driving functions such as on-the-spot U-turn, lateral driving, oblique driving, and curved driving, which greatly improves the vehicle's maneuverability, flexibility, adaptability and operating efficiency in different operating scenarios, while improving the accuracy and safety of the operation.

[0026] In this embodiment, Figure 1 As shown, a servo motor is provided on one side of the wheel 8, and the axis of the wheel 8 is fixedly connected to the output end of the servo motor, and the legs 2 and the wheel 8 which are relatively distributed on one side of the chassis assembly 1 constitute relative motion; when leveling the ground, the wheel 8 can travel in a straight line or move backwards through the drive of the servo motor on one side, which helps to maintain the stability of the vehicle during driving and reduce the shaking or shaking of the vehicle body caused by unstable power transmission.

[0027] In this embodiment, Figure 1 and Figure 2 As shown, the bottom of the connecting member 3 is fixedly connected with a level meter at a position corresponding to the upper servo motor; when the road surface is uneven, the height of the position where the wheel 8 is located changes, and the level meter can sense the change in height of the point in real time and transmit it to the control system via an electrical signal. After receiving the signal, the control system calculates the extension and contraction amount of the outrigger hydraulic cylinder 6 that needs to be adjusted according to a preset algorithm, thereby reducing the height of the chassis assembly 1 corresponding to the point of the wheel 8 that is raised due to the uneven road surface, so that the chassis assembly 1 can automatically adapt to the ups and downs of the road surface and maintain a relatively horizontal state.

[0028] The use method and advantages of the present invention: When the self-propelled new energy aerial work vehicle chassis is in use, the working process is as follows:

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, after the vehicle is started, the lithium battery 4 supplies power to various components through the circuit system in the chassis assembly 1, including the servo motor, the outrigger hydraulic cylinder 6, the wheel hydraulic cylinder 7, etc. The servo drive on one side of the wheel 8 causes the wheel 8 to start rotating, so that the vehicle can drive straight or backward on a flat ground and drive to the working area. For turning around on the spot, the wheel hydraulic cylinder 7 drives the wheel 8 to rotate horizontally under the command of the control system. The angle sensor monitors the rotation angle of the wheel 8 in real time and feeds back to the control system. The control system accurately controls the extension and contraction amount of the wheel hydraulic cylinder 7 according to the feedback, so that one side of the wheel 8 turns forward and the other side turns backward. At the same time, the servo motor on the top of the outrigger 2 realizes a 45° rotation of the corresponding outrigger 2, so that the vehicle can rotate on the spot with its own center as the axis, and the vehicle can be adjusted. Direction; the wheel hydraulic cylinder 7 rotates the wheel 8 to a horizontal angle of 90° with the chassis assembly 1, and the vehicle can be moved laterally by relying on the wheel 8; when driving diagonally, the wheel hydraulic cylinder 7 rotates the wheel 8 to a specific angle between 0° and 90°. The control system coordinates the rotation speed and direction of each wheel 8 according to the diagonal target direction, so that the vehicle travels along the diagonal trajectory. If the ground is uneven, the level meter at the bottom of the connecting piece 3 will play a role. The level meter senses the height change of the corresponding position of the wheel 8 in real time, converts it into an electrical signal and transmits it to the control system. The control system adjusts the extension and contraction amount of the corresponding outrigger hydraulic cylinder 6 to shrink or extend the outrigger hydraulic cylinder 6 at the corresponding point, so that the chassis assembly 1 always remains in a horizontal state, providing a stable platform for aerial operations.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A self-propelled new energy aerial work vehicle chassis, comprising a chassis assembly (1) and outriggers (2), characterized in that: The four corners of the chassis assembly (1) are rotatably connected to connecting members (3), a lithium battery (4) is arranged inside the chassis assembly (1), one end of the support leg (2) is rotatably connected to the connecting member (3), the other end of the support leg (2) is rotatably connected to a wheel steering member (5), a support leg hydraulic cylinder (6) is arranged inside each of the support legs (2), one side of the inner wall of the wheel steering member (5) is rotatably connected to a wheel hydraulic cylinder (7), and one end of the outer wall of the wheel steering member (5) is rotatably connected to a wheel (8).

2. The self-propelled new energy aerial work vehicle chassis according to claim 1 is characterized in that: The legs (2) are arranged in pairs relative to each other as a group and are symmetrically distributed along the midpoint line of the chassis assembly (1), and the top of the connecting member (3) is fixedly connected to a servo motor, and the output end of the servo motor is fixedly connected to the top of the leg (2) on the corresponding side.

3. The self-propelled new energy aerial work vehicle chassis according to claim 1 is characterized in that: A battery slot for embedded installation of a lithium battery (4) is fixedly connected between the chassis assemblies (1), and one end of the battery slot is connected to a door panel via bolts.

4. The self-propelled new energy aerial work vehicle chassis according to claim 1 is characterized in that: One end of the outrigger hydraulic cylinder (6) is rotatably connected to the inner wall of the connecting member (3), and the power output end of the outrigger hydraulic cylinder (6) is rotatably connected to the wheel steering member (5), and the chassis assembly (1) forms a lifting structure through the outrigger hydraulic cylinder (6).

5. The self-propelled new energy aerial work vehicle chassis according to claim 1 is characterized in that: The power output end of the wheel hydraulic cylinder (7) is rotationally connected to the wheel (8), and an angle sensor is fixedly connected to the side of the support leg (2) adjacent to the wheel steering member (5), and the wheel (8) is horizontally rotated by 0-90 degrees through the wheel hydraulic cylinder (7).

6. The self-propelled new energy aerial work vehicle chassis according to claim 1 is characterized in that: A servo motor is provided on one side of each wheel (8), and the axis of the wheel (8) is fixedly connected to the output end of the servo motor, and the legs (2) and the wheel (8) which are relatively distributed on one side of the chassis assembly (1) form a relative motion.

7. The self-propelled new energy aerial work vehicle chassis according to claim 1 is characterized in that: The bottom of the connecting member (3) is fixedly connected with a level gauge at a position corresponding to the upper servo motor.

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