Vehicle body for AGV equipment and AGV equipment

Abstract

The utility model discloses a vehicle body for AGV (automatic guided vehicle) equipment, which comprises a chassis (11), a bearing wheel assembly (12) and a driving wheel assembly (13), the bearing wheel assembly (12) is mounted at the bottom of the chassis (11), the vehicle body is characterized by further comprising a self-adaptive suspension assembly (14) corresponding to the driving wheel assembly (13), the self-adaptive suspension assembly (14) comprises a support plate (141), and the support plate (141) is mounted on the driving wheel assembly (13). The driving wheel assemblies (13) can be mounted at the bottom of the chassis (11) in a vertically movable manner and are used for mounting corresponding driving wheel assemblies (13); and the elastic piece (142) acts between the base plate (11) and the supporting plate (141), so that the base plate (11) and the supporting plate (141) always have a trend of being far away from each other. The utility model further discloses AGV equipment applying the vehicle body. Compared with the prior art, the adaptive capacity to uneven road surfaces can be improved.

Description

Technical Field

[0001] This utility model relates to the field of logistics equipment technology, specifically to a vehicle body and AGV equipment for AGV equipment. Background Technology

[0002] In the logistics industry and special production sites, traditional methods of goods transportation and management usually include the following: (1) Manual handling: manual operation relies on workers to move goods from one location to another manually. This method is labor-intensive, inefficient, and prone to errors and accidents; (2) Forklifts and other mechanical equipment: heavy machinery such as forklifts is used to move goods. Although it improves efficiency to a certain extent, it still requires manual driving and maintenance, poses safety hazards, and requires high operating skills; (3) Conveyor belt system: conveyor belts are used to automate transportation in some specific scenarios, but this method is less flexible, has a limited scope of application, and is difficult to cope with complex warehousing environments; (4) Traditional warehouse management system: barcode or RFID technology is used for item tracking and management, but manual intervention is still required to perform tasks such as inventory management, picking, and distribution.

[0003] AGV (Automated Guided Vehicle) equipment is a highly automated, flexible, and safety-protected unmanned automated vehicle equipped with various auxiliary mechanisms. Its working principle is to accurately travel along a prescribed path and complete designated tasks under the monitoring and task scheduling of a control computer. The main function of AGV equipment is automated logistics and material handling. AGV equipment automatically transports goods to designated locations through special landmark navigation. The most common guidance methods are magnetic strip guidance, laser guidance, and RFID guidance. For details, please refer to Chinese patent application number CN202411167612.X, "An AGV Trolley for Easy Unloading".

[0004] However, for existing AGV equipment, firstly, it is prone to problems such as vehicle bumps and reduced transportation accuracy when dealing with complex road conditions; secondly, it is relatively troublesome to pick up and store materials. Utility Model Content

[0005] The first technical problem to be solved by this utility model is to provide a vehicle body for AGV equipment that can improve the adaptability to uneven road surfaces, in light of the current state of the technology.

[0006] The second technical problem to be solved by this utility model is to provide an AGV device with the above-mentioned vehicle body.

[0007] The third technical problem to be solved by this utility model is to provide an AGV device that can conveniently pick up and store materials.

[0008] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a vehicle body for AGV equipment, including a chassis, a load-bearing wheel assembly, and a drive wheel assembly, wherein the load-bearing wheel assembly is installed at the bottom of the chassis, characterized in that: it further includes an adaptive suspension assembly corresponding to the drive wheel assembly, the adaptive suspension assembly including...

[0009] A support plate, movably mounted vertically on the bottom of the chassis, is used to mount the corresponding drive wheel assembly; and

[0010] An elastic element acts between the chassis and the support plate to ensure that the chassis and the support plate always tend to move away from each other.

[0011] In order to enable the support plate to be movably installed at the bottom of the chassis, a sliding sleeve extending in the vertical direction is installed at the bottom of the chassis, and a guide shaft extending in the vertical direction is installed at the top of the support plate. The guide shaft can be movably inserted into the sliding sleeve.

[0012] To prevent the guide shaft from disengaging from the sliding sleeve, the top end of the guide shaft has a limiting block that abuts against the top end of the sliding sleeve when the chassis and support plate are at their extreme positions.

[0013] To improve the stability of the support plate and chassis during relative movement, the number of guide shafts is at least two, and they are arranged at intervals on the top of the support plate. The number of sliding sleeves is at least two, and they correspond one-to-one with the guide shafts.

[0014] To facilitate the installation of the elastic element, the elastic element is a compression spring, which is sleeved on the outer periphery of the guide shaft, and its two ends respectively abut against the top surface of the support plate and the end face of the bottom end of the sliding sleeve.

[0015] In order to drive the vehicle body to move, the drive wheel assembly includes a drive wheel and a first drive member for driving the drive wheel to rotate, the first drive member being mounted on a corresponding support plate.

[0016] To ensure the stability of the vehicle's movement, there are two sets of drive wheel assemblies, which are symmetrically arranged on the left and right sides of the chassis. There are also two sets of adaptive suspension assemblies, which correspond one-to-one with the drive wheel assemblies.

[0017] To ensure the degree of freedom of movement of the vehicle body, the load-bearing wheel assembly includes:

[0018] A rotating bracket, rotatably connected to the bottom of the chassis, has its axis of rotation extending vertically; and

[0019] The load-bearing wheel is rotatably connected to the rotating bracket, and its rotation axis extends horizontally.

[0020] To provide stable support for the chassis, the chassis is rectangular, and the number of load-bearing wheel assemblies is four, which are respectively arranged at the four corners of the bottom of the chassis.

[0021] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: an AGV device, characterized in that: it uses the above-mentioned vehicle body.

[0022] To further address the third technical problem mentioned above, a lifting mechanism and a material conveying mechanism are also included.

[0023] The lifting mechanism includes:

[0024] Support base, erected on top of the vehicle body;

[0025] The movable seat is vertically movably mounted on the support base; and

[0026] A lifting device is used to drive the movable seat to rise and fall.

[0027] The material conveying mechanism includes:

[0028] The support platform is fixed relative to the movable seat and has a first workstation and a second workstation along the front-back direction.

[0029] Two sets of conveyor belts are respectively located on the left and right sides of the support platform; and

[0030] Two sets of drive devices, corresponding to the conveyor belt, are used to drive the corresponding conveyor belt to rotate in a meandering manner, and to move the material on the support platform between the first station and the second station.

[0031] Compared with the prior art, the advantages of this utility model are:

[0032] (1) An adaptive suspension assembly is formed by a support plate and elastic elements. When the vehicle moves to an uneven road surface, the adaptive suspension assembly can effectively absorb and attenuate the road impact so that the chassis and drive wheel assembly can move relative to each other, keep the vehicle running smoothly, and thus improve the adaptability to uneven road surfaces.

[0033] (2) The lifting mechanism is composed of a support base, a movable base and a lifting device, and the material conveying mechanism is composed of a support platform, a conveyor belt and a drive device. On the one hand, the lifting mechanism can lift the material conveying mechanism to the height of the material docking rack for docking, so that the material can be transferred to the first station of the support platform. Then the drive device drives the conveyor belt to rotate forward to transport the material from the first station to the second station to complete the picking work. On the other hand, the lifting mechanism can lift the material conveying mechanism to the height of the material storage rack for docking. Then the drive device drives the conveyor belt to rotate in reverse to transport the material from the second station to the first station, so that the material can be transferred to the material storage rack to complete the storage work, thus facilitating the picking and storage of materials. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of an embodiment of the AGV equipment of this utility model;

[0035] Figure 2 for Figure 1 The schematic diagram of the three-dimensional structure after the right side plate of the chassis and the top plate of the support platform is omitted.

[0036] Figure 3 for Figure 1 A longitudinal sectional view;

[0037] Figure 4 for Figure 3 Enlarged view of Part I. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0040] like Figures 1 to 4 The diagram shows a preferred embodiment of the AGV equipment of this utility model. The AGV equipment includes a vehicle body 1, a lifting mechanism 2, and a material conveying mechanism 3.

[0041] The vehicle body 1 includes a chassis 11, a load-bearing wheel assembly 12, a drive wheel assembly 13, and an adaptive suspension assembly 14.

[0042] Specifically, the chassis 11 is rectangular and hollow inside.

[0043] There are four load-bearing wheel assemblies 12, which are respectively arranged at the four corners of the bottom of the chassis 11. Each load-bearing wheel assembly 12 includes a rotating bracket 121 and a load-bearing wheel 122. The rotating bracket 121 is rotatably connected to the bottom of the chassis 11, and its rotation axis extends in the vertical direction. The load-bearing wheel 122 is rotatably connected to the rotating bracket 121, and its rotation axis extends in the horizontal direction.

[0044] There are two sets of adaptive suspension components 14, symmetrically arranged on the left and right sides of the chassis 11. Each adaptive suspension component 14 includes a support plate 141 and an elastic element 142. Four guide shafts 1411 extending vertically are installed at the four corners of the top of the support plate 141. A sliding sleeve 111 extending vertically is installed at the bottom of the chassis 11. The number of sliding sleeves 111 corresponds one-to-one with the guide shafts 1411. Each guide shaft 1411 can move up and down through the corresponding sliding sleeve. Inside the sleeve 111, the support plate 141 is movably mounted on the bottom of the chassis 11; the number of elastic elements 142 corresponds one-to-one with the guide shafts 1411, and each elastic element 142 is a compression spring, which is sleeved on the outer periphery of the corresponding guide shaft 1411, and its two ends respectively abut against the top surface of the support plate 141 and the end face of the bottom end of the corresponding sliding sleeve 111, so that the chassis 11 and the support plate 141 always tend to move away from each other; in addition, the top end of each guide shaft 1411 has a limiting block 1412, such as Figure 4 As shown, when the chassis 11 and the support plate 141 are far apart to their extreme positions, the limiting block 1412 abuts against the top of the sliding sleeve 111, thereby preventing the guide shaft 1411 from disengaging from the sliding sleeve 111.

[0045] There are two sets of drive wheel assemblies 13, which correspond one-to-one with the aforementioned adaptive suspension assemblies 14. Each drive wheel assembly 13 includes a drive wheel 131 and a first drive member 132. The first drive member 132 is a motor, which is mounted on the corresponding support plate 141. Its power output end is coaxially connected to the drive wheel 131 to drive the drive wheel 131 to rotate around its own axis.

[0046] The lifting mechanism 2 includes a support base 21, a movable base 22, and a lifting device 23.

[0047] Specifically, the support base 21 is erected on the top of the chassis 11; two guide rails 211 are arranged on the support base 21, one on the left and one on the right, and each guide rail 211 extends in the vertical direction.

[0048] The rear side of the movable seat 22 has two guide blocks 221 that correspond one-to-one with the guide rails 211. Each guide block 221 can be slidably mounted on the corresponding guide rail 211 to achieve guiding cooperation with the corresponding guide rail 211.

[0049] The lifting device 23 includes a lead screw 231, a slider 232, and a second drive component 233. The lead screw 231 extends vertically, with its two ends rotatably connected to mounting seats at the top and bottom of the support base 21, respectively. The slider 232 is threadedly connected to the outer circumference of the lead screw 231 and is mounted on the rear side of the movable seat 22. The second drive component 233 is a motor, mounted on the mounting seat at the top of the support base 21, with its power output end connected to the top of the lead screw 231 to drive the lead screw 231 to rotate around its own axis. When the second drive component 233 is activated, it drives the lead screw 231 to rotate. Since the slider 232 is threadedly connected to the lead screw 231, the movable seat 22 rises and falls synchronously with the slider 232.

[0050] The material conveying mechanism 3 includes a support platform 31, a conveyor belt 32, a drive device 33, and a material sensor 34.

[0051] Specifically, the support platform 31 has a hollow structure and is connected to the front side of the movable seat 22, and has a first workstation and a second workstation in sequence along the front-back direction.

[0052] There are two sets of conveyor belts 32, which are respectively located on the left and right sides of the support platform 31, and the top surface of the conveyor belts 32 is higher than the top surface of the support platform 31.

[0053] There are two sets of drive units 33, each corresponding to one of the conveyor belts 32. Each drive unit 33 includes a first roller 331, a second roller 332, a third drive element 333, and a transmission structure 334. There are three second rollers 332, which are spaced apart in the front-rear direction. The first rollers 331 are spaced apart and located behind the last second rollers 332. Each first roller 331 and second roller 332 is rotatably connected to the side of the support platform 31. The first rollers 331 of the two sets of drive units 33 are connected by a rotating shaft 331. 1. Connected; conveyor belt 32 is wound around the outer periphery of the first roller 331 and the second roller 332; the two sets of drive devices 33 share the same third drive component 333, which is a motor installed inside the support platform 31. Its power output end is connected to the rotating shaft 3311 through a transmission structure 334 to drive the first rollers 331 of the two sets of drive devices 33 to rotate synchronously. In this embodiment, the transmission structure 334 is a chain and sprocket transmission structure, but other transmission structures such as gear sets can also be used to achieve the same purpose. When the third drive component 333 is started, it drives the first rollers 331 of the two sets of drive devices 33 to rotate synchronously through the transmission structure 334, thereby driving the corresponding conveyor belt 32 to rotate in a meandering manner to move the material on the support platform 31 between the first and second workstations.

[0054] The material sensor 34 is a photoelectric switch, which is installed inside the support platform 31 and faces the first work station. The top wall of the support platform 31 has an opening 311 facing the material sensor 34, so that the material sensor 34 can monitor whether the material has moved to the first work station.

[0055] The working principle of this embodiment is as follows:

[0056] (1) When staff have material needs, press the material need button to send a signal to the AGV transport vehicle. After receiving the material need signal, the AGV transport vehicle starts from the origin and the vehicle body 1 moves to the material docking rack according to the set route.

[0057] (2) The lifting mechanism 2 lifts the material conveying mechanism 3 to the height of the material docking frame and triggers the switch on the material docking frame so that the material docking frame releases the material to the first station of the support platform 31.

[0058] (3) After receiving the signal, the material sensor 34 drives the conveyor belt 32 to rotate forward to transport the material from the first station to the second station. After the picking work is completed, the lifting mechanism 2 resets the material conveying mechanism 3 to the low position.

[0059] (4) The vehicle body 1 moves to the material storage rack according to the set route;

[0060] (5) The lifting mechanism 2 lifts the material conveying mechanism 3 to the height of the material storage rack and docks with the material storage rack;

[0061] (6) The drive device 33 drives the conveyor belt 32 to reverse and transport the material from the second station to the first station. The material is transferred to the material storage rack. After the storage work is completed, the lifting mechanism 2 resets the material conveying mechanism 3 to the low position.

[0062] After the above work is completed, if there are other material demand instructions, the AGV transport vehicle will repeat the above work. If there are no material demand instructions, the AGV transport vehicle will return to the origin and stand by.

[0063] In addition, during the movement of the vehicle body 1, when it runs on an uneven road surface, the adaptive suspension assembly 14 can effectively absorb and attenuate the road impact, so that the chassis 11 and the drive wheel assembly 13 can move relative to each other, keeping the vehicle body 1 running smoothly.

Claims

1. A vehicle body for an AGV (Automated Guided Vehicle) device, comprising a chassis (11), a load-bearing wheel assembly (12), and a drive wheel assembly (13), wherein the load-bearing wheel assembly (12) is mounted on the bottom of the chassis (11), characterized in that: It also includes an adaptive suspension assembly (14) corresponding to the drive wheel assembly (13), the adaptive suspension assembly (14) including... A support plate (141), movably mounted vertically on the bottom of the chassis (11), is used to mount the corresponding drive wheel assembly (13); and An elastic element (142) acts between the chassis (11) and the support plate (141) to ensure that the chassis (11) and the support plate (141) always tend to move away from each other.

2. The vehicle body according to claim 1, characterized in that: The bottom of the chassis (11) is equipped with a sliding sleeve (111) extending in a vertical direction, and the top of the support plate (141) is equipped with a guide shaft (1411) extending in a vertical direction. The guide shaft (1411) can move up and down through the sliding sleeve (111).

3. The vehicle body according to claim 2, characterized in that: The top end of the guide shaft (1411) has a limiting block (1412), which abuts against the top end of the sliding sleeve (111) when the chassis (11) and the support plate (141) are far apart to the extreme position.

4. The vehicle body according to claim 2, characterized in that: The number of guide shafts (1411) is at least two, and they are arranged at intervals on the top of the support plate (141). The number of sliding sleeves (111) is at least two, and they correspond one-to-one with the guide shafts (1411).

5. The vehicle body according to claim 2, characterized in that: The elastic element (142) is a compression spring, which is sleeved on the outer periphery of the guide shaft (1411) and its two ends respectively abut against the top surface of the support plate (141) and the end face of the bottom end of the sliding sleeve (111).

6. The vehicle body according to claim 1, characterized in that: The drive wheel assembly (13) includes a drive wheel (131) and a first drive member (132) for driving the drive wheel (131) to rotate, the first drive member (132) being mounted on a corresponding support plate (141).

7. The vehicle body according to claim 1, characterized in that: The number of drive wheel assemblies (13) is two sets, and they are symmetrically arranged on the left and right sides of the chassis (11). The number of adaptive suspension assemblies (14) is two sets, and they correspond one-to-one with the drive wheel assemblies (13).

8. The vehicle body according to claim 1, characterized in that: The load-bearing wheel assembly (12) includes: A rotating bracket (121) is rotatably connected to the bottom of the chassis (11), and its axis of rotation extends vertically; and The load-bearing wheel (122) is rotatably connected to the rotating bracket (121), and its rotation axis extends in the horizontal direction.

9. The vehicle body according to any one of claims 1 to 8, characterized in that: The chassis (11) is rectangular, and the number of load-bearing wheel assemblies (12) is four, which are respectively arranged at the four corners of the bottom of the chassis (11).

10. An AGV device, characterized in that: The application has the vehicle body (1) as described in any one of claims 1 to 9.

11. The AGV equipment according to claim 10, characterized in that: It also includes a lifting mechanism (2) and a material conveying mechanism (3); The lifting mechanism (2) includes: Support base (21) is erected on top of the vehicle body (1); The movable seat (22) is mounted vertically on the support seat (21); as well as A lifting device (23) is used to drive the movable seat (22) to rise and fall; The material conveying mechanism (3) includes: The support platform (31) is fixed relative to the movable seat (22) and has a first work station and a second work station in the front-back direction; Two sets of conveyor belts (32) are respectively located on the left and right sides of the support platform (31); as well as Two sets of drive devices (33), corresponding to the conveyor belt (32), are used to drive the corresponding conveyor belt (32) to rotate around, and to move the material on the support platform (31) between the first station and the second station.

Images