AGV (Automatic Guided Vehicle) heavy-load chassis structure based on connecting rod

Abstract

The AGV heavy load chassis structure based on the connecting rods comprises a chassis frame and a driving installation plate, the chassis frame is connected with the driving installation plate through a first connecting assembly, and a connecting bridge and a third connecting assembly used for connecting the connecting bridge are integrated on the inner surface wall of the chassis frame. According to the steering mechanism, the driving motor drives the wheels to rotate by driving the mounting plate, the steering action is achieved through linkage of the connecting rod mechanism, the complexity of a traditional steering mechanism is reduced, and when encountering an obstacle, the connecting rod mechanism allows the wheels to move in the vertical direction, absorb impact force and protect a vehicle body and goods; through mechanical dispersion, integrated design and dynamic balance compensation, the problems that a traditional AGV is insufficient in bearing capacity, complex in maintenance, poor in adaptability and the like in a heavy load scene are solved. The core advantage is that mechanical linkage is used for replacing traditional hydraulic / electrical control, performance is improved, cost and energy consumption are reduced, and the device is especially suitable for high-intensity operation scenes such as industrial automation and warehouse logistics.

Description

Technical Field

[0001] This utility model relates to the field of AGV (Automated Guided Vehicle) technology, and in particular to a heavy-duty AGV chassis structure based on linkages. Background Technology

[0002] A linkage-based AGV heavy-duty chassis structure refers to a chassis structure that uses a linkage mechanism as the core component of the wheel suspension or steering system to support the AGV body and transmit loads.

[0003] Chinese Patent Publication No. CN219635358U, published on 20230905, discloses an AGV chassis structure, which includes a chassis base, a traveling wheel assembly, and a driven wheel assembly. The traveling wheel assembly includes a motor, a connecting seat, a reduction gear, and traveling wheels. The connecting seat is mounted on the chassis base, and a first dust cover is installed on the connecting seat. The first dust cover isolates the traveling wheels from the internal space of the AGV. The driven wheel assembly includes a driven wheel. A second dust cover is also provided on the chassis base corresponding to each group of driven wheel assemblies, and the second dust cover isolates at least the driven wheels from the internal space of the AGV.

[0004] Existing AGV chassis structures often employ independent suspension or rigid bridge structures, which are prone to fatigue fracture due to single-point stress. The structural strength of AGV chassis can be further optimized, so there is an urgent need to propose a corresponding linkage-based heavy-duty AGV chassis structure to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to propose a heavy-duty AGV chassis structure based on linkage in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A linkage-based heavy-duty AGV chassis structure includes a chassis frame and a drive mounting plate. The chassis frame is connected to the drive mounting plate via a connecting component one. The inner surface of the chassis frame integrates a connecting bridge and a connecting component three for connecting the connecting bridge. The connecting bridge includes a balance bridge and a shouldered shaftless bushing two. The open end of the balance bridge is connected to the drive mounting plate via the connecting component two.

[0008] Preferably, the connecting assembly includes a flip-up axle fixedly connected to the drive mounting plate, and the flip-up axle is connected to the chassis frame via a shouldered shaftless bushing.

[0009] Preferably, the balance bridge has perforated holes inside.

[0010] Preferably, the second connecting component includes a sliding shaft seat that is fixedly connected to the drive mounting plate by fasteners, and the sliding shaft seat is connected to the open end of the balance bridge by a roller bearing follower.

[0011] Preferably, a shaped flat washer is integrated between the fastener and the drive mounting plate.

[0012] Preferably, the connecting component three includes a bridge axle passing between the balance bridge and the chassis frame. One side of the bridge axle is fixedly connected to the outer wall of the chassis frame through a shaft end baffle two, and the other side of the bridge axle is fixedly connected to a shaft end baffle one.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] In this application, during AGV operation, the vehicle weight is transferred to the linkage mechanism via the chassis frame, and then distributed to each wheel by the linkage. The balance bridge design of the connecting bridge can dynamically adjust the load difference between the left and right wheels to adapt to uneven ground. For steering and driving, the drive motor drives the wheels to rotate through the drive mounting plate, while the steering action is achieved by the linkage mechanism, reducing the complexity of traditional steering mechanisms. When encountering obstacles, the linkage mechanism allows the wheels to move vertically, absorbing impact force and protecting the vehicle body and cargo. Through mechanical dispersion, integrated design, and dynamic balance compensation, the problems of insufficient load-bearing capacity, complex maintenance, and poor adaptability of traditional AGVs in heavy-load scenarios are solved. Its core advantage lies in replacing traditional hydraulic / electrical control with mechanical linkage, which not only improves performance but also reduces costs and energy consumption, making it particularly suitable for high-intensity operation scenarios such as industrial automation and warehousing logistics. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0016] Figure 2 A schematic diagram of the drive mounting plate structure provided according to an embodiment of the present utility model is shown;

[0017] Figure 3 A schematic diagram of a bridge structure according to an embodiment of the present invention is shown;

[0018] Figure 4 The present invention provides an embodiment of the present invention. Figure 2 Schematic diagram of the cross-sectional structure at point A in the middle;

[0019] Figure 5 A schematic diagram of a connection component provided according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Chassis frame; 2. Connecting assembly one; 201. Tilting axle seat; 202. Shoulder-mounted shaftless bushing one; 3. Drive mounting plate; 4. Connecting assembly two; 401. Sliding axle seat; 402. Irregularly shaped flat washer; 403. Roller bearing follower; 5. Connecting bridge; 501. Balance bridge; 502. Shoulder-mounted shaftless bushing two; 6. Connecting assembly three; 601. Bridge shaft; 602. Shaft end baffle one; 603. Shaft end baffle two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] A linkage-based heavy-duty AGV chassis structure includes a chassis frame 1 and a drive mounting plate 3. The chassis frame 1 is connected to the drive mounting plate 3 via a connecting component 2. The inner surface of the chassis frame 1 integrates a connecting bridge 5 and a connecting component 6 for connecting the connecting bridge 5. The connecting bridge 5 includes a balance bridge 501 and a shoulder-mounted shaftless bushing 502. The open end of the balance bridge 501 is connected to the drive mounting plate 3 via a connecting component 4.

[0025] Connect the tilting axle seat 201 to the chassis frame 1 via a pin, then install the shouldered shaftless bushing 202. Fix the drive mounting plate 3 to the connecting assembly 2 with bolts. Adjust the coaxiality of the drive motor and the wheel. Pre-install the sliding axle seat 401 and the roller bearing follower 403. Embed the irregular flat washer 402 between the sliding axle seat 401 and the roller bearing. Weld the balance bridge 501 to the shouldered shaftless bushing 502. Connect the connecting bridge 5 to the chassis frame 1 with bolts. The bridge axle 601 passes through the connecting bridge 5 and the connecting assembly 4. Install the axle end baffle. When the AGV is running, the weight of the vehicle body is transmitted through the chassis frame 1. The load is distributed to each wheel via a linkage mechanism. The balance bridge 501 of the connecting bridge 5 dynamically adjusts the load difference between the left and right wheels to adapt to uneven ground. For steering and driving, the drive motor rotates the wheels via the drive mounting plate 3, while the steering action is achieved through the linkage mechanism, reducing the complexity of traditional steering mechanisms. When encountering obstacles, the linkage mechanism allows the wheels to move vertically, absorbing impact and protecting the vehicle body and cargo. Through mechanical dispersion, integrated design, and dynamic balance compensation, it solves the problems of insufficient load-bearing capacity, complex maintenance, and poor adaptability of traditional AGVs in heavy-duty scenarios. Its core advantage lies in replacing traditional hydraulic / electrical control with mechanical linkage, which not only improves performance but also reduces cost and energy consumption, making it particularly suitable for high-intensity operation scenarios such as industrial automation and warehousing logistics.

[0026] Specifically, such as Figure 2 and Figure 4 As shown, the connecting component 2 includes a flip-up axle seat 201 fixedly connected to the drive mounting plate 3. The flip-up axle seat 201 is connected to the chassis frame 1 through a shoulderless bushing 202, which realizes the series connection between the drive mounting plate 3 and the chassis frame 1 while ensuring the mobility of the drive mounting plate 3. The balance bridge 501 has a hollow perforation inside, which reduces the overall weight of the balance bridge 501.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, the second connecting component 4 includes a sliding shaft seat 401 fixedly connected to the drive mounting plate 3 by fasteners, and the sliding shaft seat 401 is connected to the open end of the balance bridge 501 through a roller bearing follower 403, thereby realizing the series connection between the balance bridge 501 and the drive mounting plate 3. A non-circular flat washer 402 is integrated between the fasteners and the drive mounting plate 3 to ensure the stability of the connection between the drive mounting plate 3 and the sliding shaft seat 401. The third connecting component 6 includes a bridge shaft 601 passing between the balance bridge 501 and the chassis frame 1. One side of the bridge shaft 601 is fixedly connected to the outer wall of the chassis frame 1 through a shaft end baffle 2 603, and the other side of the bridge shaft 601 is fixedly connected to a shaft end baffle 1 602, thereby realizing the movable installation of the balance bridge 501.

[0028] Working principle: The tilting axle seat 201 is connected to the chassis frame 1 by a pin, and then the shouldered shaftless bushing 202 is installed. The drive mounting plate 3 is fixed to the connecting assembly 2 by bolts. The coaxiality of the drive motor and the wheel is adjusted. The sliding axle seat 401 and the roller bearing follower 403 are pre-installed. The irregular flat washer 402 is embedded between the sliding axle seat 401 and the roller bearing. The balance bridge 501 is welded to the shouldered shaftless bushing 502. The connecting bridge 5 is connected to the chassis frame 1 by bolts. The bridge axle 601 passes through the connecting bridge 5 and the connecting assembly 2. 4. Install axle end baffles. When the AGV is running, the weight of the vehicle body is transmitted to the linkage mechanism through the chassis frame 1, and then distributed to each wheel by the linkage. The balance bridge 501 of the connecting bridge 5 can dynamically adjust the load difference between the left and right wheels to adapt to uneven ground. For steering and driving, the drive motor drives the wheels to rotate through the drive mounting plate 3, while the steering action is realized by the linkage mechanism, reducing the complexity of the traditional steering mechanism. When encountering obstacles, the linkage mechanism allows the wheels to move in the vertical direction, absorbing the impact force and protecting the vehicle body and cargo.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A linkage-based heavy-duty AGV chassis structure, comprising a chassis frame (1) and a drive mounting plate (3), characterized in that, The chassis frame (1) is connected to the drive mounting plate (3) via a connecting component (2). The inner surface of the chassis frame (1) is integrated with a connecting bridge (5) and a connecting component (6) for connecting the connecting bridge (5). The connecting bridge (5) includes a balance bridge (501) and a shoulder-mounted shaftless bushing (502). The open end of the balance bridge (501) is connected to the drive mounting plate (3) via a connecting component (4).

2. The AGV heavy-duty chassis structure based on linkage according to claim 1, characterized in that, The connecting component (2) includes a flip-up axle seat (201) fixedly connected to the drive mounting plate (3), and the flip-up axle seat (201) is connected to the chassis frame (1) via a shoulder-mounted shaftless bushing (202).

3. The AGV heavy-duty chassis structure based on linkage according to claim 2, characterized in that, The balance bridge (501) has a perforated opening inside.

4. The AGV heavy-duty chassis structure based on linkage according to claim 3, characterized in that, The second connecting component (4) includes a sliding shaft seat (401) fixedly connected to the drive mounting plate (3) by fasteners, and the sliding shaft seat (401) is connected to the open end of the balance bridge (501) by a roller bearing follower (403).

5. The AGV heavy-duty chassis structure based on linkage according to claim 4, characterized in that, A shaped flat pad (402) is integrated between the fastener and the drive mounting plate (3).

6. The AGV heavy-duty chassis structure based on linkage according to claim 5, characterized in that, The connecting component three (6) includes a bridge axle (601) passing between the balance bridge (501) and the chassis frame (1). One side of the bridge axle (601) is fixedly connected to the outer wall of the chassis frame (1) through a shaft end baffle two (603), and the other side of the bridge axle (601) is fixedly connected to a shaft end baffle one (602).

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