Heavy-load lifting AGV

Abstract

A heavy-load lifting AGV, comprising a vehicle frame (1) and driving mechanisms, a lifting mechanism, and an electronic control mechanism which are mounted on the vehicle frame (1). The driving mechanisms are respectively arranged on two sides of the vehicle frame (1). The driving mechanisms each comprise a driving wheel (3) and a first power mechanism (4), and the driving wheel (3) is connected to the first power mechanism (4), so as to drive the driving wheel (3) to rotate. By means of driving the two first power mechanisms (4) to rotate at different speeds, the AGV can be steered. The lifting mechanism comprises a lifting plate (5) and a second power mechanism (6), and the lifting plate (5) is connected to the second power mechanism (6), so as to drive the lifting plate (5) to lift up and lower down. The first power mechanism (4) and the second power mechanism (6) are connected to the electronic control mechanism.

Description

A heavy-load lifting AGV Technical Field

[0001] The utility model relates to the field of transportation, in particular to a heavy-load lifting AGV. Background Art

[0002] AGVs are commonly used in industrial manufacturing and transportation. Automated Guided Vehicles (AGVs) are industrial vehicles that automatically or manually load cargo, then drive along a set route or tow a cargo trolley to a designated location, where they are then automatically or manually loaded and unloaded. In the production of large parts or the transportation of large pallet racks, latent heavy-duty AGVs are used. Existing latent heavy-duty AGVs, due to strength considerations and the dimensions of their internal components, typically have relatively high bodies to accommodate heavy loads. Some latent heavy-duty AGVs lack a lifting function, requiring external control to access and place cargo before continuing transportation. Some latent heavy-duty AGVs do have a lifting function, using their own lifting mechanism to fully automatically access and place cargo for transportation. However, these existing AGVs, due to their steering and buffer mechanisms, not only are their bodies too high, making them difficult to lift and transport when transporting heavy pallet racks with a high center of gravity, such as large BOX storage containers used in ceramic production, but they also have complex structures, large size, and heavy weight, resulting in high costs.

[0003] Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a heavy-load lifting AGV with a simple structure and a low vehicle body height.

[0005] In order to solve the above technical problems, the utility model provides a heavy-load lifting AGV, including a frame and a driving mechanism, a lifting mechanism and an electric control mechanism installed on the frame;

[0006] The driving mechanism is respectively provided on both sides of the frame; the driving mechanism includes a driving wheel and a first power mechanism, the driving wheel and the first power mechanism are connected to drive the driving wheel to rotate; by driving the two first power mechanisms at different speeds, the AGV can be turned;

[0007] The lifting mechanism includes a lifting plate and a second power mechanism, and the lifting plate and the second power mechanism are connected to drive the lifting plate to move up and down;

[0008] The first power mechanism and the second power mechanism are respectively connected to the electronic control mechanism.

[0009] As an improvement to the above solution, a supporting movable part for supporting the frame is provided at the bottom of the frame.

[0010] As an improvement to the above solution, the supporting movable member is provided with a shock absorbing member, and the supporting movable member is elastically connected to the vehicle frame via the shock absorbing member.

[0011] As an improvement of the above solution, the driving mechanism also includes a support assembly, which includes a wheel axle, a bearing, a bearing sleeve, a spacer sleeve and a support plate. The wheel axle is connected to the driving wheel, and the bearing, bearing sleeve, spacer sleeve and support plate are all installed on the wheel axle.

[0012] As an improvement of the above-mentioned solution, the driving mechanism also includes a connecting assembly, which includes a connecting seat and a connecting flange. The connecting seat is fixedly connected to the support plate, and the connecting seat is fixedly connected to the frame. The first power mechanism is connected to the wheel axle through the connecting flange to drive the driving wheel to rotate.

[0013] As an improvement of the above solution, the lifting mechanism also includes a guide assembly, which includes a guide shaft and a guide sleeve. The guide sleeve is fixedly installed on the frame, one end of the guide shaft is fixedly connected to the lifting plate, and the other end is passed through the guide sleeve and is slidably connected to the guide sleeve.

[0014] As an improvement to the above solution, the electric control mechanism includes a control panel, a controller and a power supply, and the controller is connected to the control panel, the power supply, the first power mechanism and the second power mechanism respectively.

[0015] As an improvement to the above solution, the electronic control mechanism further includes a first sensor for navigation.

[0016] As an improvement to the above solution, the electronic control mechanism further includes a second sensor for assisting navigation.

[0017] As an improvement of the above solution, a partition is provided in the frame, which divides the frame into a drive chamber and an electric control chamber. The drive chamber is provided on both sides of the electric control chamber, the drive wheel and the lifting mechanism are both provided in the drive chamber, and the first power mechanism and the electric control mechanism are provided in the electric control chamber.

[0018] The implementation of this utility model has the following beneficial effects:

[0019] This heavy-duty lifting AGV features drive mechanisms on either side of the vehicle frame. A first power mechanism controls the different rotational speeds of the drive wheels on either side, enabling differential steering for the AGV and eliminating the need for a steering wheel mechanism that requires a dual-differential mechanism. Furthermore, the drive mechanisms directly bear the weight of the vehicle's cargo, eliminating the need for a buffer mechanism above the drive mechanism. This simplifies the overall structure, saves space, and effectively reduces the height of the AGV body. This results in a lower center of gravity when transporting heavy cargo, improving lifting and transport stability while also reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the heavy-duty lifting AGV of the present invention;

[0021] FIG2 is a schematic diagram of the bottom structure of FIG1 ;

[0022] FIG3 is a schematic structural diagram of the interior of the vehicle frame of FIG1 ;

[0023] FIG4 is an exploded view of the drive mechanism of FIG3 ;

[0024] FIG5 is a schematic diagram of the structure inside the driving cavity of FIG3 . DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear in this document are based solely on the accompanying drawings and are not intended to limit the present invention.

[0026] 1-5 , the present invention discloses a heavy-load lifting AGV, which includes a frame 1 and a driving mechanism, a lifting mechanism, and an electric control mechanism installed on the frame 1 .

[0027] The drive mechanism is provided on either side of the vehicle frame 1 and includes a drive wheel 3 and a first power mechanism 4. The drive wheel 3 and the first power mechanism 4 are connected to drive the drive wheel 3 to rotate. The drive wheel 3 extends from the bottom of the vehicle frame 1. By driving the two first power mechanisms 4 at different speeds, the AGV can achieve steering.

[0028] The lifting mechanism includes a lifting plate 5 and a second power mechanism 6 , and the lifting plate 5 and the second power mechanism 6 are connected to drive the lifting plate 5 to move up and down.

[0029] The first power mechanism 4 and the second power mechanism 6 are respectively connected to the electronic control mechanism.

[0030] This heavy-duty lifting AGV features drive mechanisms on either side of the vehicle frame. A first power mechanism controls the different rotational speeds of the drive wheels on either side, enabling single-differential steering for the AGV and eliminating the need for a steering wheel mechanism that typically requires a dual-differential mechanism. Furthermore, the drive mechanism directly bears the weight of the vehicle's cargo, eliminating the need for a buffer mechanism above the drive mechanism. This simplifies the overall structure, saves space, and effectively reduces the height of the AGV body. This results in a lower center of gravity when transporting heavy cargo, improving lifting and transport stability while also reducing manufacturing costs.

[0031] Preferably, the first power mechanism 4 is a reduction motor, and the second power mechanism 6 is a hydraulic cylinder.

[0032] Specifically, as shown in Figures 3 and 5, a partition 111 is provided within the vehicle frame 1, dividing the vehicle frame 1 into a drive chamber 11 and an electronic control chamber 12. The drive chamber 11 is located on either side of the electronic control chamber 12. The drive wheel 3 and the lifting mechanism are both located within the drive chamber 11, while the first power mechanism 4 and the electronic control mechanism are located within the electronic control chamber 12. More specifically, the electronic control chamber 12 extends from the front to the rear of the vehicle frame 1. The drive mechanism and the lifting mechanism are symmetrically located on either side of the vehicle frame. Within each drive chamber, the drive wheel is located in the center of the chamber, and the lifting mechanisms are located on either side of the drive wheel. In other words, each drive chamber contains one drive wheel and two lifting mechanisms. In addition to driving the AGV, the two drive mechanisms also serve as load-bearing mechanisms for the AGV and cargo. The drive mechanism has a simple structure, eliminating the need for additional steering mechanisms and buffer compression mechanisms, effectively saving space and minimizing vehicle height. Drive mechanisms are mounted on either side of the frame. These mechanisms can be configured via a control panel, with the controller controlling the speeds of the two first power mechanisms, and thus the two drive wheels. For example, turning the AGV can be achieved by turning only one drive wheel while keeping the other still.

[0033] Preferably, a reinforcement plate 112 is provided in the driving cavity 11 , and the reinforcement plate 112 is respectively connected to the partition 111 and the side plate of the frame 1 to reinforce the installation of the partition.

[0034] Preferably, as shown in Figures 2-3 and 5, the bottom of the frame 1 is provided with a supporting movable part 7 for supporting the frame 1. The supporting movable part extends out of the bottom of the frame. There are four supporting movable parts in total, and a supporting movable part is provided at both ends of each driving cavity. More preferably, the supporting movable part is a pulley. The pulley can be a universal caster. The supporting movable part plays a role in assisting in supporting the entire frame. At the same time, the pulley can be a smaller model, which further simplifies the structure and saves space. It can effectively compress the height of the AGV body, and the center of gravity is relatively low when transporting heavy goods, which can improve the stability of jacking and transportation and reduce manufacturing costs.

[0035] More preferably, the supporting movable member 7 is provided with a shock-absorbing member (not shown), which is elastically connected to the vehicle frame 1 via the shock-absorbing member. The shock-absorbing member can be a spring. The provision of the shock-absorbing member can provide a shock-absorbing and buffering effect. Therefore, the supporting movable member can be a shock-absorbing wheel equipped with a shock-absorbing member.

[0036] Furthermore, as shown in Figures 2 and 4-5, the drive mechanism further includes a support assembly, which includes a wheel shaft 31, a bearing 32, a bearing wheel sleeve 33, a spacer 34, and a support plate 35. The wheel shaft 31 is connected to the driving wheel 3, and the bearing 32, bearing wheel sleeve 33, spacer 34, and support plate 35 are all provided on the wheel shaft 31. Specifically, the bearing 32, bearing wheel sleeve 33, spacer 34, and support plate 35 are symmetrically installed on both sides of the driving wheel 3 by being inserted into the wheel shaft 31.

[0037] Furthermore, as shown in Figure 4, the drive mechanism also includes a connecting assembly, which includes a connecting seat 36 and a connecting flange 37. The connecting seat 36 is fixedly connected to the support plate 35, and the connecting seat 36 is fixedly connected to the frame 1. The first power mechanism 4 is connected to the wheel axle 31 through the connecting flange 37 to drive the driving wheel 3 to rotate. There are two connecting seats 36, which are respectively provided on the front and rear sides of the driving wheel 3. Both connecting seats are fixedly connected to the support plates on the left and right sides of the driving wheel to mount the driving wheel and the support assembly on the frame. The connecting seat and the connecting flange are fixedly connected, and the output shaft of the first power mechanism is connected to the wheel axle through the connecting flange, so that the first power mechanism drives the driving wheel to rotate.

[0038] Preferably, as shown in FIG5 , the lifting mechanism further includes a guide assembly, which includes a guide shaft 8 and a guide sleeve 9. The guide sleeve 9 is fixedly mounted on the vehicle frame 1. One end of the guide shaft 8 is fixedly connected to the lifting plate 5, and the other end is passed through the guide sleeve 9 and slidably connected to the guide sleeve 9. That is, the guide shaft rises and falls under the guidance of the guide sleeve, ensuring that the lifting plate does not deviate during lifting, thereby ensuring that the cargo is lifted and lowered smoothly.

[0039] Specifically, as shown in Figures 3 and 5, the electronic control mechanism includes a control panel 10, a controller 13, and a power supply 14. The controller 13 is connected to the control panel 10, the power supply 14, the first power mechanism 4, and the second power mechanism 6, respectively. The control panel and controller are located at the front end of the vehicle frame, while the power supply is located at the rear end of the frame to ensure the vehicle's balance. More specifically, the control panel is located at the front of the vehicle, the controller is located at the front end of the electronic control chamber, and the power supply is located at the rear end of the electronic control chamber. An oil supply mechanism is also located in the middle of the electronic control chamber 12 to supply oil to the second drive mechanism 6. The power supply 14 is a battery.

[0040] Preferably, the electronic control mechanism further includes a first sensor 15 for navigation. More preferably, the first sensor 15 is a laser navigation sensor. The first sensors are mounted on the front and rear of the vehicle, respectively, and are arranged diagonally to function as navigation and safety scanning radars.

[0041] Preferably, the electronic control mechanism further includes a second sensor (not shown) for assisting navigation. More preferably, the second sensor is an RFID sensor. The second sensor is mounted on the bottom of the controller and can read point information to assist navigation.

[0042] It should be noted that, as shown in FIG1 , the top of the driving chamber 11 is covered with a lifting plate 5 , and the top of the electric control chamber 12 is covered with a door panel 16 to prevent debris from falling into the vehicle frame.

[0043] In summary, the utility model provides a heavy-load lifting AGV with a simple structure and a low vehicle body height.

[0044] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An overloaded lifting AGV, characterized in that, It includes a vehicle frame, as well as a driving mechanism, a lifting mechanism and an electric control mechanism mounted on the vehicle frame; The driving mechanisms are respectively arranged on both sides of the vehicle frame; the driving mechanism includes driving wheels and a first power mechanism, and the driving wheels are connected to the first power mechanism to drive the driving wheels to rotate; by driving the two first power mechanisms at different speeds, the AGV can be steered; The lifting mechanism includes a lifting plate and a second power mechanism, and the lifting plate is connected to the second power mechanism to drive the lifting plate to lift and lower; The first power mechanism and the second power mechanism are respectively connected to the electric control mechanism.

2. The heavy-duty lifting AGV according to claim 1, wherein A support movable member for supporting the vehicle frame is provided at the bottom of the vehicle frame.

3. The heavy-duty lifting AGV according to claim 2, characterized in that, The support movable member is provided with a shock absorber, and the support movable member is elastically connected to the vehicle frame through the shock absorber.

4. The heavy-duty lifting AGV according to claim 1, wherein The driving mechanism further includes a support assembly, and the support assembly includes a wheel axle, bearings, bearing wheel sleeves, spacer sleeves and a support plate. The wheel axle is connected to the driving wheel, and the bearings, bearing wheel sleeves, spacer sleeves and the support plate are all sleeved on the wheel axle.

5. The heavy-duty lifting AGV according to claim 4, characterized in that, The driving mechanism further includes a connection assembly, and the connection assembly includes a connection seat and a connection flange. The connection seat is fixedly connected to the support plate, the connection seat is fixedly connected to the vehicle frame, and the first power mechanism is connected to the wheel axle through the connection flange to drive the driving wheel to rotate.

6. The heavy-duty lifting AGV according to claim 1, characterized in that, The lifting mechanism further includes a guiding assembly, and the guiding assembly includes a guiding shaft and a guiding sleeve. The guiding sleeve is fixedly installed on the vehicle frame. One end of the guiding shaft is fixedly connected to the lifting plate, and the other end is sleeved on the guiding sleeve and slidably connected to the guiding sleeve.

7. The heavy-load lifting AGV according to claim 1, wherein The electric control mechanism includes a control panel, a controller and a power supply. The controller is respectively connected to the control panel, the power supply, the first power mechanism and the second power mechanism.

8. The heavy-load lifting AGV according to claim 7, wherein, The electric control mechanism further includes a first sensor for navigation.

9. The heavy-duty lifting AGV according to claim 7, wherein, The electric control mechanism further includes a second sensor for auxiliary navigation.

10. The heavy-duty lifting AGV according to any one of claims 1-9, characterized in that, A partition is provided inside the vehicle frame, and the partition divides the inside of the vehicle frame into a driving cavity and an electric control cavity. The driving cavity is arranged on both sides of the electric control cavity. The driving wheels and the lifting mechanism are both arranged in the driving cavity, and the first power mechanism and the electric control mechanism are arranged in the electric control cavity.

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