A chain-driven AGV heavy-duty chassis structure

Abstract

This utility model discloses a chain-driven AGV heavy-duty chassis structure, including a chassis frame and reinforcing rods. Two sets of shouldered oil-free bushings are fixedly installed on opposite sides of the chassis frame and reinforcing rods. A first drive mounting plate and a second drive mounting plate are fixedly installed on the corresponding two sets of shouldered oil-free bushings. The bottoms of the first and second drive mounting plates are connected by two sets of chain drive mechanisms. The reinforcing rods of this utility model increase the rigidity of the chassis frame and, in conjunction with the shouldered oil-free bushings and locking bolts, allow for the rotational installation of the first and second drive mounting plates. Furthermore, when encountering vibrations during transport, the chain drive mechanism can balance certain vibrations through mechanical dispersion and dynamic balance compensation, absorbing a certain amount of impact force and protecting the vehicle body and cargo. This solves the problems of insufficient load-bearing capacity, complex maintenance, and poor adaptability of traditional AGVs in heavy-duty scenarios.

Description

Technical Field

[0001] This utility model relates to the field of transportation device technology, specifically to a chain-driven AGV heavy-duty chassis structure. Background Technology

[0002] AGV heavy-duty chassis are the basic structure of automated transportation equipment designed specifically for carrying heavy goods or performing heavy-duty operations. These chassis are commonly used in industrial environments such as factories, warehouses, and logistics centers to automate material handling, improve efficiency, and reduce labor costs.

[0003] As disclosed in the prior art (CN219635358U), an AGV chassis structure 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 driven wheels. 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 heavy-duty AGV chassis only provide load-bearing function during use. However, if the chassis encounters certain bumps or vibrations during use, it is easy to damage the objects. Furthermore, the chassis is also prone to damage due to single-point stress during bumps. Therefore, we propose a chain-driven heavy-duty AGV chassis structure. Utility Model Content

[0005] The purpose of this invention is to provide a heavy-duty chassis structure for a chain-driven AGV to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a chain-driven AGV heavy-duty chassis structure, including a chassis frame, a first drive mounting plate, and a second drive mounting plate. Two sets of reinforcing rods are fixedly installed inside the chassis frame. Two sets of shouldered oil-free bushings are fixedly installed on opposite sides of the chassis frame and the reinforcing rods. The first drive mounting plate and the second drive mounting plate are fixedly installed on the corresponding two sets of shouldered oil-free bushings by two sets of locking bolts. The bottoms of the first drive mounting plate and the second drive mounting plate are connected by two sets of chain drive mechanisms.

[0007] Furthermore, the chain drive mechanism includes a fixed block, a plate chain groove wheel, a plate chain, a first connecting pin, and a pull rod. The chassis frame and the reinforcing rod are both fixedly connected to the plate chain groove wheel by the fixed block. The groove of the plate chain groove wheel is provided with a plate chain. One end of the two sets of plate chains is fixedly connected to the pull rod by the first connecting pin, and the other end of the two sets of plate chains is connected to the first drive mounting plate and the second drive mounting plate, respectively.

[0008] Furthermore, the end of the plate chain away from the first connecting pin is fixedly connected to an adjusting screw via a second connecting pin. The top of the adjusting screw extends through to the top of the first drive mounting plate and the top of the second drive mounting plate, and an adjusting nut is threaded onto the external part of the adjusting screw.

[0009] Furthermore, at least two sets of adjusting nuts are provided for the external threaded connection of the adjusting screw.

[0010] Furthermore, the fixing block is configured as an "L" shape, and multiple sets of the "L" shaped fixing blocks are disposed at the bottom of the first drive mounting plate and the second drive mounting plate.

[0011] Furthermore, the chassis frame, reinforcing rod, first drive mounting plate, second drive mounting plate, plate chain groove wheel, first connecting pin, tie rod and adjusting screw are all made of rigid materials.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The reinforcing rod set in the present invention can increase the rigidity of the chassis frame. On the other hand, it can cooperate with the shoulder oil-free bushing and locking bolt to complete the rotation installation of the first drive mounting plate and the second drive mounting plate. Subsequently, when encountering vibration during transportation, the chain transmission mechanism can balance a certain amount of vibration through mechanical dispersion and dynamic balance compensation, absorb a certain amount of impact force, protect the vehicle body and cargo, and solve the problems of insufficient load-bearing capacity, complex maintenance and poor adaptability of traditional AGVs in heavy-load scenarios. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 This is a first perspective view of the chain drive mechanism of this utility model, showing the installation structure.

[0015] Figure 3 This is a second perspective view of the installation structure of the chain drive mechanism of this utility model;

[0016] Figure 4 This is a frontal sectional view of the present invention.

[0017] In the diagram: 1. Chassis frame; 2. Reinforcing rod; 3. Oil-free bushing with shoulder; 4. Locking bolt; 5. First drive mounting plate; 6. Second drive mounting plate; 7. Chain drive mechanism; 8. Fixing block; 9. Plate chain groove wheel; 10. Plate chain; 11. First connecting pin; 12. Pull rod; 13. Second connecting pin; 14. Adjusting screw; 15. Adjusting nut. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a chain-driven AGV heavy-duty chassis structure, including a chassis frame 1, a first drive mounting plate 5, and a second drive mounting plate 6. Two sets of reinforcing rods 2 are fixedly installed inside the chassis frame 1. Two sets of shoulder oil-free bushings 3 are fixedly installed on opposite sides of the chassis frame 1 and the reinforcing rods 2. The first drive mounting plate 5 and the second drive mounting plate 6 are fixedly installed on the corresponding two sets of shoulder oil-free bushings 3 by two sets of locking bolts 4. The bottoms of the first drive mounting plate 5 and the second drive mounting plate 6 are connected by two sets of chain drive mechanisms 7.

[0020] The reinforcing rod 2 increases the rigidity of the chassis frame 1. On the other hand, it can cooperate with the shoulder oil-free bushing 3 and locking bolt 4 to complete the rotation installation of the first drive mounting plate 5 and the second drive mounting plate 6. Subsequently, when encountering vibrations during transportation, the chain drive mechanism 7 can balance a certain amount of vibration through mechanical dispersion and dynamic balance compensation, absorb a certain amount of impact force, protect the vehicle body and cargo, and solve the problems of insufficient load-bearing capacity, complex maintenance and poor adaptability of traditional AGVs in heavy-load scenarios.

[0021] Please see Figures 1-4 The chain drive mechanism 7 includes a fixing block 8, a plate chain groove wheel 9, a plate chain 10, a first connecting pin 11, and a pull rod 12. The plate chain groove wheel 9 is fixedly connected to the chassis frame 1 and the reinforcing rod 2 through the fixing block 8. The plate chain 10 is provided in the groove position of the plate chain groove wheel 9. One end of the two sets of plate chains 10 is fixedly connected to the pull rod 12 through the first connecting pin 11, and the other end of the two sets of plate chains 10 is connected to the first drive mounting plate 5 and the second drive mounting plate 6 respectively.

[0022] The first drive mounting plate 5 and the second drive mounting plate 6 are connected by a plate chain 10 and a pull rod 12. When the first drive mounting plate 5 and the second drive mounting plate 6 rotate and sway along the shoulder oil-free bushing 3, the plate chain 10 can move back and forth through the plate chain groove wheel 9, which can disperse a certain amount of vibration, absorb a certain amount of impact force, and prevent the entire device from being damaged.

[0023] Please see Figures 1-4 The end of the plate chain 10 away from the first connecting pin 11 is fixedly connected to an adjusting screw 14 via a second connecting pin 13. The top of the adjusting screw 14 extends through to the top of the first drive mounting plate 5 and the second drive mounting plate 6. An adjusting nut 15 is threaded onto the outside of the adjusting screw 14.

[0024] The pull rod 12 can reduce the use of the plate chain 10, thereby preventing excessive aging and loosening caused by long-term and large-scale use of the plate chain 10. When the plate chain 10 becomes aged and loose, the adjusting nut 15 is rotated to move the adjusting screw 14 upward, thereby avoiding the aging and loosening of the plate chain 10.

[0025] Please see Figure 2 and Figure 4 The adjusting nut 15 connected to the external thread of the adjusting screw 14 is provided in at least two sets. The multiple sets of adjusting nuts 15 can prevent the adjusting screw 14 from moving downward due to loosening.

[0026] Please see Figure 1 and Figure 3 The fixing block 8 is set in an "L" shape, and multiple sets of "L" shaped fixing blocks 8 are set at the bottom of the first drive mounting plate 5 and the second drive mounting plate 6. The "L" shaped fixing blocks 8 are set at the bottom of the first drive mounting plate 5 and the second drive mounting plate 6 to support the first drive mounting plate 5 and the second drive mounting plate 6, so that the first drive mounting plate 5 and the second drive mounting plate 6 will not fall excessively when the chain transmission mechanism 7 is damaged.

[0027] Please see Figures 1-4 The chassis frame 1, reinforcing rod 2, first drive mounting plate 5, second drive mounting plate 6, plate chain groove wheel 9, first connecting pin 11, tie rod 12 and adjusting screw 14 are all made of rigid materials. The rigid material components can avoid deformation and damage when transporting heavy items.

[0028] In use, firstly, the reinforcing rod 2 increases the rigidity of the chassis frame 1. Secondly, it cooperates with the shoulder-mounted oil-free bushing 3 and locking bolt 4 to complete the rotational installation of the first drive mounting plate 5 and the second drive mounting plate 6. Subsequently, when encountering vibrations during transportation, the chain drive mechanism 7 can balance a certain amount of vibration through mechanical dispersion and dynamic balance compensation, absorbing a certain amount of impact force, protecting the vehicle body and cargo, and solving the problems of insufficient load-bearing capacity, complex maintenance, and poor adaptability of traditional AGVs in heavy-load scenarios. The first drive mounting plate 5 and the second drive mounting plate 6 are connected by a plate chain 10 and a tie rod. The plate chain 10 is connected in section 12. When the first drive mounting plate 5 and the second drive mounting plate 6 rotate and shake along the shoulder oil-free bushing 3, it can reciprocate through the plate chain groove wheel 9. This can disperse a certain amount of vibration, absorb a certain amount of impact force, and prevent damage to the entire device. The pull rod 12 can reduce the use of the plate chain 10, thereby preventing excessive aging and loosening caused by long-term and large-scale use of the plate chain 10. When the plate chain 10 becomes aging and loose, rotating the adjusting nut 15 will move the adjusting screw 14 upward, thereby avoiding aging and loosening of the plate chain 10.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chain drive type AGV heavy load chassis structure, comprising a chassis frame (1), a first drive mounting plate (5) and a second drive mounting plate (6), two groups of reinforcing rods (2) are fixedly installed inside the chassis frame (1), characterized in that: Two sets of shouldered oil-free bushings (3) are fixedly installed on opposite sides of the chassis frame (1) and the reinforcing rod (2). The first drive mounting plate (5) and the second drive mounting plate (6) are fixedly installed on the corresponding two sets of shouldered oil-free bushings (3) by two sets of locking bolts (4). The bottoms of the first drive mounting plate (5) and the second drive mounting plate (6) are connected by two sets of chain transmission mechanisms (7).

2. The heavy load chassis structure of chain drive AGV according to claim 1, characterized in that: The chain drive mechanism (7) includes a fixed block (8), a plate chain groove wheel (9), a plate chain (10), a first connecting pin (11), and a pull rod (12). The chassis frame (1) and the reinforcing rod (2) are both fixedly connected to the plate chain groove wheel (9) by the fixed block (8). The groove of the plate chain groove wheel (9) is provided with the plate chain (10). One end of the two sets of plate chains (10) is fixedly connected to the pull rod (12) by the first connecting pin (11), and the other end of the two sets of plate chains (10) is connected to the first drive mounting plate (5) and the second drive mounting plate (6) respectively.

3. The heavy-duty chassis structure of a chain-driven AGV according to claim 2, characterized in that: The plate chain (10) is fixedly connected to an adjusting screw (14) at one end away from the first connecting pin (11) via a second connecting pin (13). The top of the adjusting screw (14) extends through to the top of the first drive mounting plate (5) and the second drive mounting plate (6). An adjusting nut (15) is threaded onto the outside of the adjusting screw (14).

4. The heavy-duty chassis structure of a chain-driven AGV according to claim 3, characterized in that: The adjusting nut (15) connected to the external thread of the adjusting screw (14) is provided in at least two sets.

5. The heavy-duty chassis structure of a chain-driven AGV according to claim 4, characterized in that: The fixing block (8) is set in an "L" shape, and multiple sets of the fixing blocks (8) in the "L" shape are set at the bottom of the first drive mounting plate (5) and the second drive mounting plate (6).

6. The heavy-duty chassis structure of a chain-driven AGV according to claim 5, characterized in that: The chassis frame (1), reinforcing rod (2), first drive mounting plate (5), second drive mounting plate (6), plate chain groove wheel (9), first connecting pin (11), tie rod (12) and adjusting screw (14) are all made of rigid materials.

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