Synchronous lifting rod based on heavy load agv

Abstract

The utility model is applicable to the technical field of AGVs (Automatic Guided Vehicles), and provides a heavy-load agv-based synchronous lifting rod which comprises a vehicle body, a pallet fork mechanism and a lifting main body, the lifting main body comprises a supporting table arranged beside the vehicle body; the guide columns are arranged on the two sides of the supporting table; the first transverse plate is arranged above the plurality of guide columns; the lifting holes are formed in the four corners of the first transverse plate; the plurality of lifting columns slide in the plurality of lifting holes; the top plate, the buffer piece and the radar sensor are arranged above the lifting column; lifting of the driving air cylinder is accurately adjusted, it is ensured that the lifting main body can accurately reach a designated position according to a preset path and height requirements, the height of the radar sensor can also be correspondingly adjusted, and therefore induction dead angles are avoided, safe operation of a vehicle body is ensured, and the service life of the vehicle body is prolonged. Due to the intelligent and accurate control design, the operation efficiency and reliability of the vehicle body are greatly improved, and safe operation of the vehicle body is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of AGV, in particular to a synchronous lifting rod for a heavy-load AGV. Background Art

[0002] With the rapid development of logistics, warehousing and other industries, the role of automatic guided vehicles (AGVs) in intelligent logistics systems has become increasingly prominent. The safety and efficiency of AGVs are directly related to the performance of overall logistics operations. However, traditional AGV designs have limitations in some aspects, especially in complex and changing working environments, where their perception and decision-making capabilities face considerable challenges.

[0003] Taking the traditional AGV forklift design as an example, the radar sensor is usually fixedly installed on the forklift body; this installation method will cause the radar blind area when the forklift is loaded with heavy objects in front of it, especially when the height of the heavy objects exceeds the detection range of the radar, the blind area will be further expanded; as the weight continues to rise, the blind area is also gradually increasing, which undoubtedly increases the risk of AGV colliding with surrounding obstacles. This risk may not only lead to safety accidents, but also cause the interruption of logistics operations, causing unnecessary losses to enterprises and customers. Utility Model Content

[0004] The utility model provides a synchronous lifting rod for heavy-load AGVs, aiming to solve the problem that in the traditional AGV forklift design, the radar sensor is usually fixedly installed on the forklift body; this installation method will cause a blind area of ​​the radar when heavy objects are loaded in front of the forklift, especially when the height of the heavy object exceeds the radar detection range, the blind area will be further expanded, and as the weight rises, the blind area becomes larger, increasing the risk of collision between the AGV and surrounding obstacles, which may cause safety accidents or interruption of logistics operations.

[0005] The utility model is implemented as follows: based on a synchronous lifting rod for a heavy-duty AGV, it includes a vehicle body, which is concavely arranged; a fork mechanism arranged at the front of the vehicle body; and a lifting body arranged above the vehicle body; wherein the lifting body includes: an assembly groove arranged at the front position of the vehicle body; a support platform arranged in the assembly groove; guide columns arranged vertically on both sides of the support platform; a first cross plate arranged horizontally above the two guide columns; lifting holes arranged on both sides of the first cross plate; a group of lifting columns sliding in the two lifting holes; a same lifting plate is arranged at the bottom side position where the two lifting columns pass through the lifting holes; a driving cylinder arranged at the middle position of the supporting platform, the output end of the driving cylinder is connected to the bottom side of the lifting plate; a top plate arranged horizontally above a plurality of the lifting columns; a buffer member arranged on the top plate, the buffer member including a plurality of return springs arranged on the top plate, a damper is arranged in each of the plurality of return springs, and a shock-absorbing pad is arranged on the side of the plurality of return springs away from the top plate; a radar sensor arranged above the shock-absorbing pad.

[0006] Preferably, the fork mechanism comprises: a fixed frame arranged in front of the vehicle body; a fork perpendicular to the outer side of the fixed frame; a group of scissor frames symmetrically arranged on the front side of the fixed frame; and a shelf guard arranged on the outer sides of the two scissor frames.

[0007] Preferably, a longitudinally arranged screw rod is rotatably provided at the front side of the vehicle body, a motor for driving the end key to rotate is installed below the screw rod through a coupling, a support block is threadedly fitted on the screw rod, the support block is slidably fitted with the inner wall of the vehicle body, and the support block extends to the outside of the vehicle body and is connected to the fixing frame by welding.

[0008] Preferably, a PLC console is provided at the rear side of the vehicle body, and the PLC console is electrically connected to the motor, the fork mechanism, the driving cylinder and the radar sensor.

[0009] Preferably, a heat dissipation slot is provided on the outer side of the PLC console.

[0010] Preferably, a counterweight chamber is provided at the rear position of the vehicle body.

[0011] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0012] First: Through the PLC console, all components of the vehicle body are centrally managed and controlled, realizing intelligent and precise control, so that the vehicle body can perform efficient and accurate operations according to preset programs and instructions. In particular, the application of radar sensors not only monitors the surrounding environment in real time, but also through the feedback mechanism with the PLC console, the smooth and precise lifting function of the radar sensor realizes automatic adjustment of the radar sensor height, thereby avoiding induction blind spots and ensuring the safe operation of the vehicle body. This intelligent and precise control design greatly improves the operating efficiency and reliability of the vehicle body.

[0013] Second: By setting a shock-absorbing part under the radar sensor, the damage to the radar sensor and other internal components caused by the impact force generated by the movement of the vehicle or the output of the driving cylinder can be significantly reduced, the service life of the radar sensor can be extended, and it can be ensured to operate stably and accurately in various working environments.

[0014] Third: The fork mechanism fully considers stability and safety. The fixed frame is made of solid steel, which can withstand the pressure of heavy loads and has sufficient stability to prevent shaking or deformation during operation. The design of the scissor frame enables smooth and reliable material unloading, ensuring the stability and safety of the vehicle body in complex environments, and providing strong guarantees for efficient and precise material handling and stacking tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a side view of the utility model;

[0017] Figure 3 It is a side structural schematic diagram of the utility model;

[0018] Figure 4 It is a front view of the utility model;

[0019] Figure 5 It is a front view of the lifting body of the utility model;

[0020] Figure 6 It is a schematic diagram of the structure of the buffer member of the utility model;

[0021] In the figure: 1. vehicle body; 201. support platform; 202. guide column; 203. first horizontal plate; 204. driving cylinder; 205. lifting hole; 206. lifting column; 207. top plate; 208. radar sensor; 209. lifting plate; 210. assembly groove; 301. fixing frame; 302. fork; 303. scissor frame; 304. shelf guard; 4. screw rod; 5. motor; 6. support block; 7. PLC control console; 8. heat dissipation groove; 9. counterweight cavity; 10. buffer; 101. reset spring; 102. shock-absorbing pad. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] The utility model embodiment provides a synchronous lifting rod for heavy-duty AGV, such as Figure 1-6As shown, it includes a vehicle body 1, which is concave; a fork mechanism arranged at the front of the vehicle body 1; and a lifting body arranged above the vehicle body 1; wherein the lifting body includes: an assembly groove 210 arranged at the front position of the vehicle body 1; a support platform 201 arranged in the assembly groove 210; guide columns 202 arranged vertically on both sides of the support platform 201; a first cross plate 203 arranged horizontally above the two guide columns 202; lifting holes 205 arranged on both sides of the first cross plate 203; a group of lifting columns 206 sliding in the two lifting holes 205; two lifting columns 206 passing through the lifting holes 205 A lifting plate 209 is arranged at the bottom side; a driving cylinder 204 is arranged at the middle position of the support platform 201, and the output end of the driving cylinder 204 is connected to the bottom side of the lifting plate 209; a top plate 207 is horizontally arranged above the plurality of lifting columns 206; a buffer member 10 is arranged on the top plate 207, and the buffer member 10 includes a plurality of return springs 101 arranged on the top plate 207, and dampers are arranged in the plurality of return springs 101, and a shock-absorbing pad 102 is arranged on the side of the plurality of return springs 101 away from the top plate 207; a radar sensor 208 is arranged above the shock-absorbing pad 102.

[0025] It should be noted that, in the traditional AGV forklift design, the radar sensor 208 is usually fixedly installed on the forklift body; this installation method will cause a blind spot of the radar when heavy objects are loaded in front of the forklift, especially when the height of the heavy object exceeds the radar detection range, the blind spot will be further expanded. As the weight increases, the blind spot becomes larger, increasing the risk of collision between the AGV and surrounding obstacles, which may lead to safety accidents or major interruptions in logistics operations. This solution centrally manages and controls the components of the AGV body 1 through the PLC console 7 to achieve intelligent and precise control to ensure efficient and accurate operation; the real-time monitoring of the radar sensor 208 and the feedback mechanism with the PLC automatically adjust the height to avoid sensing blind spots, ensure the safe operation of the body 1, and cooperate with the scissor frame 303 to ensure a smooth and reliable unloading process, providing a strong guarantee for efficient and accurate material handling. These design features jointly improve the operating efficiency and reliability of the body 1.

[0026] Specifically, in this embodiment, this scheme mainly includes a vehicle body 1, a fork 302 mechanism and a lifting body; the driving cylinder 204 is the power source of the lifting body. When the PLC console 7 sends a control signal, the driving cylinder 204 will respond quickly, and its piston rod will perform telescopic movement according to the requirements of the control signal. When the piston rod is extended, it will directly push the lifting plate 209 and the structure above it to move upward; when the piston rod is retracted, it will drive the lifting plate 209 and the structure above it to descend. This telescopic action not only realizes the lifting function, but also ensures the smoothness and precision of the lifting process; the guide column 202 is vertically installed on both sides of the support platform 201 to provide a solid support for the lifting body. Its main function is to ensure the stability and verticality of the lifting plate 209 during the lifting process. The existence of the guide column 202 prevents the lifting plate 209 from tilting or deflecting during the lifting process, thereby ensuring the overall stability and reliability of the lifting body;

[0027] The rise of the lifting column 206 drives the top plate 207 and the radar sensor 208 above it to rise together. The return spring 101 and the damper in the shock absorbing member can effectively absorb the impact energy, and the shock absorbing pad 102 provides a soft buffer layer, which significantly reduces the damage to the radar sensor 208 and other internal components caused by the impact force generated by the operation of the vehicle body 1 or the output of the driving cylinder 204;

[0028] On the contrary, when the piston rod retracts, the lifting column 206 and the top plate 207 will drop synchronously. This linkage mechanism ensures that the radar sensor 208 can always be maintained at a suitable height so as to monitor the surrounding environment in real time. By continuously sending and receiving radio waves to the surrounding environment, the radar sensor (FD-RS20) 208 can accurately sense the distance and relative position between it and the surrounding objects. This information will be fed back to the PLC console 7 in real time in the form of electrical signals. The PLC console 7 will accurately adjust the action of the driving cylinder 204 based on the received information to ensure that the lifting body can accurately reach the specified position according to the preset path and height requirements.

[0029] As the height of the material increases, in order to avoid blind spots caused by material obstruction, the height of the radar sensor 208 can be adjusted to ensure comprehensive detection of the surrounding environment. This height adjustment mechanism enables the radar sensor 208 to always maintain the best working state, thereby ensuring the safe operation of the vehicle body 1. Through continuous monitoring and adjustment, efficient and accurate material handling and stacking tasks can be achieved.

[0030] In a further preferred embodiment of the present invention, Figure 1-2As shown, the fork 302 mechanism includes: a fixed frame 301 arranged in front of the vehicle body 1; a fork 302 perpendicular to the outer side of the fixed frame 301; a group of scissor frames 303 symmetrically arranged on the front side of the fixed frame 301; and a shelf 304 arranged on the outer sides of the two scissor frames 303.

[0031] In this embodiment, the fixed frame 301 is made of solid steel to ensure that it can withstand the pressure of heavy cargo and has sufficient stability to prevent shaking or deformation during operation. The fork 302 is perpendicular to the outer side of the fixed frame 301, which means that the fork 302 can perform vertical lifting operations of cargo under the support of the fixed frame 301;

[0032] The main function of the fork 302 is to be inserted under the cargo, lift the cargo from the ground or other plane through a lifting action, and move it with the vehicle body 1;

[0033] The scissor frame 303 is composed of multiple metal rods that are hinged to form a retractable structure. When material unloading is required, the scissor frame 303 is unfolded. As the scissor frame 303 is unfolded, the shelf 304 will also move outward. When the shelf 304 moves outward, it will contact the material and exert a certain thrust to make the material fall off the fork 302.

[0034] In a further preferred embodiment of the present invention, Figure 3 As shown, a longitudinally arranged screw rod 4 is rotatably provided at the front side of the vehicle body 1, and a motor 5 for driving the end key thereof to rotate is installed below the screw rod 4 through a coupling, and a support block 6 is threadedly provided on the screw rod 4, and the support block 6 is slidably fitted with the inner wall of the vehicle body 1, and the support block 6 extends to the external position of the vehicle body 1 and is connected to the fixing frame 301 by welding.

[0035] In this embodiment, when the motor 5 is started, it drives the screw rod 4 to rotate. Due to the threaded fit between the support block 6 and the screw rod 4, the support block 6 moves in the vertical direction as the screw rod 4 rotates. Since the support block 6 is connected to the fixed frame 301 by welding, the fixed frame 301 and the fork 302 mechanism will also rise and fall accordingly. In this way, the vehicle body 1 can conveniently realize the picking, placing and lifting operations of the goods.

[0036] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a PLC console 7 is provided at the rear side of the vehicle body 1 , and the PLC console 7 is electrically connected to the motor 5 , the fork 302 mechanism, the driving cylinder 204 and the radar sensor 208 .

[0037] In this embodiment, an electrical connection is established between the PLC console 7 and the fork 302 mechanism and the motor 5, and the connection allows the PLC console 7 to accurately control the fork 302 mechanism, thereby achieving accurate control of the fork 302 mechanism, thereby ensuring that the goods can be picked up and placed accurately and quickly;

[0038] The PLC console 7 controls the extension and retraction of the piston rod of the driving cylinder 204 by sending instructions to the solenoid valve of the driving cylinder 204, thereby realizing the lifting and lowering control of the radar sensor 208. This connection ensures that the radar sensor 208 can be lifted and lowered according to the preset height and speed to meet different operation requirements;

[0039] The radar sensor 208 is used to monitor the distance and relative position between the vehicle body 1 and the surrounding environment in real time, and transmit these data in the form of electrical signals to the PLC console 7 in real time. The PLC console 7 adjusts the movement trajectory and speed of the vehicle body 1 according to the received data to ensure that the vehicle body 1 can complete the task safely and accurately.

[0040] In a further preferred embodiment of the present invention, Figure 1-3 As shown, a heat dissipation slot 8 is provided on the outer side of the PLC console 7 .

[0041] In this embodiment, the heat sink 8 is part of the heat dissipation system of the PLC console 7. Its main function is to help dissipate the heat generated inside the PLC console 7. When the PLC console 7 is working, the electronic components inside it will generate a certain amount of heat. If this heat cannot be dissipated in time, it will cause the temperature of the PLC console 7 to rise, thereby affecting its performance and stability. By providing the heat sink 8, the surface area of ​​the PLC console 7 casing can be increased, thereby providing more heat dissipation space.

[0042] In a further preferred embodiment of the present invention, Figure 3 As shown, a counterweight chamber 9 is provided at the rear of the vehicle body 1 .

[0043] In this embodiment, by setting a counterweight cavity 9 at the rear position, the stability and carrying capacity of the vehicle body 1 are significantly improved. This design not only helps to improve the working efficiency of the vehicle body 1, but also reduces the potential risks caused by instability of the vehicle body 1. In actual applications, the design of the counterweight cavity 9 should be optimized according to specific needs and the actual situation of the vehicle body 1 to ensure optimal stability and carrying capacity.

[0044] Working principle: When the device is used, the motor 5 starts to drive the screw 4 to rotate. Due to the threaded fit between the support block 6 and the screw 4, the support block 6 will move in the vertical direction as the screw 4 rotates. Since the support block 6 is connected to the fixed frame 301 by welding, the fixed frame 301 and the fork 302 mechanism will also rise and fall accordingly. The fixed frame 301 is made of solid steel to ensure that it can withstand the pressure of heavy-loaded goods and has sufficient stability to prevent shaking or deformation during operation. The fork 302 is perpendicular to the outer side of the fixed frame 301, which means that the fork 302 can perform vertical lifting operations of goods under the support of the fixed frame 301;

[0045] The main function of the fork 302 is to be inserted under the cargo, lift the cargo from the ground or other plane through a lifting action, and move it with the vehicle body 1;

[0046] The scissor frame 303 is composed of a plurality of metal rods connected in an articulated manner to form a retractable structure. When material unloading is required, the scissor frame 303 is unfolded. As the scissor frame 303 is unfolded, the shelf 304 also moves outward. When the shelf 304 moves outward, it contacts the material and exerts a certain thrust, causing the material to fall off the fork 302.

[0047] The driving cylinder 204 is the power source of the lifting body. When the PLC console 7 sends out a control signal, the driving cylinder 204 will respond quickly, and its piston rod will perform telescopic movement according to the requirements of the control signal. When the piston rod is extended, it will directly push the lifting plate 209 and the structure above it to move upward; when the piston rod is retracted, it will drive the lifting plate 209 and the structure above it to move downward. This telescopic action not only realizes the lifting function, but also ensures the smoothness and precision of the lifting process; the guide column 202 is vertically installed on both sides of the support platform 201 to provide a solid support for the lifting body. Its main function is to ensure the stability and verticality of the lifting plate 209 during the lifting process. The existence of the guide column 202 prevents the lifting plate 209 from tilting or deflecting during the lifting process, thereby ensuring the overall stability and reliability of the lifting body;

[0048] The rise of the lifting column 206 drives the top plate 207 and the radar sensor 208 above it to rise together. The return spring 101 and the damper in the shock absorbing member can effectively absorb the impact energy, and the shock absorbing pad 102 provides a soft buffer layer, which significantly reduces the damage to the radar sensor 208 and other internal components caused by the impact force generated by the operation of the vehicle body 1 or the output of the driving cylinder 204;

[0049] On the contrary, when the piston rod is retracted, the lifting column 206 and the top plate 207 will drop synchronously. This linkage mechanism ensures that the radar sensor 208 can always be maintained at a suitable height so as to monitor the surrounding environment in real time. By continuously sending and receiving radio waves to the surrounding environment, the radar sensor 208 can accurately sense the distance and relative position between it and the surrounding objects. This information will be fed back to the PLC console 7 in the form of electrical signals in real time. Based on the received information, the PLC console 7 sends instructions to the solenoid valve of the driving cylinder 204 to control the extension and retraction of the piston rod of the driving cylinder 204, thereby realizing the lifting and lowering control of the radar sensor 208. This connection ensures that the radar sensor 208 can be lifted and lowered according to the preset height and speed.

[0050] As the height of the material increases, in order to avoid blind spots caused by material obstruction, the height of the radar sensor 208 can be adjusted to ensure comprehensive detection of the surrounding environment. This height adjustment mechanism enables the radar sensor 208 to always maintain the best working state, thereby ensuring the safe operation of the vehicle body 1. Through continuous monitoring and adjustment, efficient and accurate material handling and stacking tasks can be achieved.

[0051] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0052] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0053] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0054] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. Based on the synchronous lifting rod for heavy-duty AGV, it is characterized by: include: A vehicle body, wherein the vehicle body is arranged in a concave shape; A fork mechanism provided at the front of the vehicle body; and A lifting body disposed above the vehicle body; Wherein, the lifting body comprises: A mounting groove arranged at the front position of the vehicle body; A support platform disposed in the assembly groove; Guide columns vertically arranged on both sides of the support platform; A first horizontal plate horizontally arranged above the two guide pillars; Lifting holes provided on both sides of the first horizontal plate; a set of lifting posts sliding in two lifting holes; A same lifting plate is arranged at the bottom side of the two lifting columns passing through the lifting holes; A driving cylinder disposed in the middle of the support platform, wherein the output end of the driving cylinder is connected to the bottom side of the lifting plate; A top plate horizontally arranged above the plurality of lifting columns; A buffer member disposed on the top plate, the buffer member comprising a plurality of return springs disposed on the top plate, a damper being disposed in each of the plurality of return springs, and a shock absorbing pad being disposed on a side of the plurality of return springs away from the top plate; A radar sensor is located above the shock absorber.

2. The synchronous lifting rod for heavy-load AGV according to claim 1, characterized in that: The fork mechanism comprises: A fixing frame arranged in front of the vehicle body; A fork perpendicular to the outer side of the fixed frame; A group of scissor frames symmetrically arranged on the front side of the fixed frame; A shelf is arranged outside the two scissor frames.

3. The synchronous lifting rod for heavy-load AGV according to claim 2 is characterized in that: A longitudinally arranged screw rod is rotatably provided at the front side of the vehicle body, and a motor for driving the end key thereof to rotate is installed below the screw rod through a coupling, and a support block is threadedly provided on the screw rod, and the support block is slidably fitted with the inner wall of the vehicle body, and the support block extends to the outside of the vehicle body and is connected to a fixing frame by welding.

4. The synchronous lifting rod for heavy-load AGV according to claim 3 is characterized in that: A PLC console is arranged at the rear side of the vehicle body, and the PLC console is electrically connected to the motor, the fork mechanism, the driving cylinder and the radar sensor.

5. The synchronous lifting rod for heavy-load AGV according to claim 4, characterized in that: The outer side of the PLC console is provided with a heat dissipation slot.

6. The synchronous lifting rod for heavy-load AGV according to claim 4, characterized in that: A counterweight chamber is arranged at the rear of the vehicle body.

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