Forklift AGV

Abstract

The utility model belongs to the technical field of AGVs, and particularly relates to a forklift AGV. According to the forklift AGV, the rigid chain is adopted to drive the fork arms to stretch out and draw back relatively, the rigid chain has high rigidity and strength, stable transmission performance can be kept under the long-time and high-load working condition, and therefore the working efficiency and safety of the forklift AGV are improved; and the manufacturing cost of the rigid chain is relatively low, complex machining and mounting processes are not needed, the manufacturing cost of the forklift AGV is reduced, and the forklift AGV has higher market competitiveness. In addition, the rigid chain is relatively easy to maintain, only regular inspection and replacement of abraded parts are needed, a complex maintenance process is not needed, and the maintenance cost of the forklift AGV is reduced. Besides, the rigid chain driving mode is high in adaptability, the forklift AGV can normally work in various severe environments such as the high-temperature environment, the low-temperature environment and the humid environment, the application range of the forklift AGV is widened, and the use reliability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of AGV, and in particular relates to a forklift AGV. Background Art

[0002] In logistics, warehousing and manufacturing, forklift AGVs are increasingly used. They use automatic navigation technology to realize automatic handling of goods, greatly improving work efficiency and safety. In the design of forklift AGV, the extension and retraction of the fork arm is one of its core functions, which is directly related to the handling efficiency and stability of the forklift AGV. The fork arm drive method of traditional forklift AGVs is mostly achieved by synchronous belts and motors. Although this method can achieve the extension and retraction of the fork arm, it has some limitations in practical applications. For example, synchronous belt transmission may cause unstable transmission due to pulley tooth jumping, and long-term use may cause synchronous belt wear or even breakage, thereby affecting the work efficiency and safety of the forklift AGV. Utility Model Content

[0003] The utility model aims to overcome the problems of unstable transmission and low reliability in the existing forklift AGV which adopts a synchronous belt to drive the fork arm to move, and provides a forklift AGV which adopts a rigid chain to drive the fork arm to move.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A forklift AGV comprises a vehicle body, a group of fork arms and a pushing mechanism; the pushing mechanism comprises a chain drive motor, a sprocket assembly, a chain guide channel and a rigid chain, the sprocket assembly is meshed with the rigid chain, the chain guide channel is arranged on the vehicle body, a chain conveying port is arranged on one side of the vehicle body located at the rear end of the fork arm, a connecting portion connected to the rear end of the fork arm is arranged at one end of the rigid chain extending out of the chain conveying port, the chain drive motor is used to drive the sprocket assembly to rotate relative to each other, thereby driving the relative extension amount of the rigid chain at the chain conveying port, thereby controlling the fork arm to extend outward or be pulled back inward.

[0006] Compared with the prior art, the forklift AGV of the utility model adopts a rigid chain to drive the fork arm to extend and retract relatively. The rigid chain has high rigidity and strength, and can maintain stable transmission performance under long-term and high-load working conditions, thereby improving the working efficiency and safety of the forklift AGV; and the manufacturing cost of the rigid chain is relatively low, and no complicated processing and installation process is required, which reduces the manufacturing cost of the forklift AGV and makes it more competitive in the market. In addition, the maintenance of the rigid chain is relatively simple, and only regular inspection and replacement of worn parts are required, without the need for complicated maintenance processes, which reduces the maintenance cost of the forklift AGV. In addition, the rigid chain drive method has strong adaptability and can work normally in various harsh environments, such as high temperature, low temperature, humidity and other environments, which broadens the application range of the forklift AGV and has good reliability.

[0007] Furthermore, the pushing mechanism is provided with one corresponding to each fork arm; through such an arrangement, each fork arm can have an independent driving force when relatively extending or pulling back, and the driving force has good stability.

[0008] Furthermore, the chain drive motor is provided with a sprocket assembly including a driving wheel, and the output end of the chain drive motor is provided with a transmission shaft, and each driving wheel is respectively connected to the transmission shaft through a coupling; through such an arrangement, each fork arm can be synchronously extended or retracted relative to each other, and the reliability of use is good.

[0009] Furthermore, the sprocket assembly includes a driving wheel and a driven wheel arranged at intervals in the chain guide channel, and the rigid chain is wound around the driving wheel and the driven wheel at the same time; through such an arrangement, the rigid chain has a better turning operation effect in the vehicle body and the rigid chain has good operation flexibility.

[0010] Furthermore, a left supporting arm, a middle supporting arm and a right supporting arm are arranged at intervals along the lateral direction on the front side of the vehicle body, a receiving groove for receiving the fork arm is formed between adjacent supporting arms, the chain conveying port is arranged at the inner end of the receiving groove, a longitudinal chain guide channel segment is provided on the inner side of the middle supporting arm, and a transverse chain guide channel segment is provided along one side of the receiving groove at the rear side of the middle supporting arm in the vehicle body, and the transverse chain guide channel segment and the longitudinal chain guide channel segment constitute the chain guide channel; through such an arrangement, the space arrangement of the chain guide channel in the vehicle body is compact, and the space utilization rate is high, so that the size of the vehicle body can be made smaller.

[0011] Furthermore, a lifting mechanism is provided at the bottom of the fork arm, and the lifting mechanism is connected to the vehicle body by wires through electric wires. The connecting part is a magnetic head, and the magnetic head is detachably connected to the rear side of the fork arm. Through such an arrangement, the connecting part can be separated from the fork arm, which facilitates the fork arm to realize the lifting function.

[0012] Further, a lifting mechanism is provided at the bottom of the fork arm, and the lifting mechanism is a scissor lift mechanism or a rigid chain lift mechanism; by such a setting, the setting method of the lifting mechanism is simple and the use effect is good.

[0013] Further, guide wheels are respectively provided at both ends of the bottom of the fork arm; by such a setting, the extending or retracting movement of the fork arm has a good guiding effect, preventing the fork arm from moving out of position.

[0014] Further, omnidirectional drive steering wheels are respectively provided on both sides of one diagonal line of the bottom of the vehicle body, and free wheels are respectively provided on both sides of the other diagonal line of the bottom of the vehicle body; by such a setting, the vehicle body has the function of rotating in place and can move in different directions. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the retracted state of the fork arm of the forklift AGV

[0016] Figure 2 It is a schematic diagram of the extended state of the fork arm of the forklift AGV

[0017] Figure 3 It is a top view of the forklift AGV

[0018] Figure 4 It is a cross-sectional view of the top view state of the forklift AGV

[0019] Figure 5 For Figure 4 The cross-sectional view of B-B in

[0020] Figure 6 It is a schematic diagram of the pushing mechanism Detailed Embodiments

[0021] The following describes the detailed embodiments of the present invention with reference to the drawings. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] See Figures 1 to 6A forklift AGV of the utility model comprises a vehicle body 1, a group of fork arms 2 and a pushing mechanism 3; the pushing mechanism 3 comprises a chain drive motor 31, a sprocket assembly, a chain guide channel 34 and a rigid chain 35, the sprocket assembly is meshed with the rigid chain 35, the chain guide channel 34 is arranged on the vehicle body 1, a chain conveying port 36 is arranged on one side of the vehicle body 1 located at the rear end of the fork arm 2, and a connecting portion 37 connected to the rear end of the fork arm 2 is arranged at one end of the rigid chain 35 extending out of the chain conveying port 36, and the chain drive motor 31 is used to drive the sprocket assembly to rotate relative to each other, thereby driving the relative extension amount of the rigid chain 35 at the chain conveying port 36, thereby controlling the fork arm 2 to extend outward or be pulled back inward.

[0023] Compared with the prior art, the forklift AGV of the utility model adopts a rigid chain 35 to drive the fork arm 2 to extend and retract relatively. The rigid chain 35 has high rigidity and strength, and can maintain stable transmission performance under long-term, high-load working conditions, thereby improving the working efficiency and safety of the forklift AGV; and the manufacturing cost of the rigid chain 35 is relatively low, and no complicated processing and installation process is required, which reduces the manufacturing cost of the forklift AGV and makes it more competitive in the market. In addition, the maintenance of the rigid chain 35 is relatively simple, and only regular inspection and replacement of worn parts are required, without the need for complicated maintenance processes, which reduces the maintenance cost of the forklift AGV. In addition, the rigid chain 35 driving mode has strong adaptability and can work normally in various harsh environments, such as high temperature, low temperature, humidity and other environments, which broadens the application range of the forklift AGV and has good reliability.

[0024] See also Figures 1 to 6 In one embodiment, the pushing mechanism 3 is provided with one corresponding to each fork arm 2; through such an arrangement, each fork arm 2 can have an independent driving force when it is relatively extended or pulled back, and the driving force has good stability.

[0025] See also Figures 3 to 6 In one embodiment, the chain drive motor 31 is provided with a sprocket assembly including a driving wheel 32, and a transmission shaft 38 is provided at the output end of the chain drive motor 31. Each driving wheel 32 is connected to the transmission shaft 38 through a coupling 17. Through such an arrangement, each fork arm 2 can be synchronously extended or retracted relative to each other, and has good reliability in use.

[0026] See also Figures 3 to 6 In one embodiment, the sprocket assembly includes a driving wheel 32 and a driven wheel 33 arranged at intervals in a chain guide channel 34, and the rigid chain 35 is wound around the driving wheel 32 and the driven wheel 33 at the same time; through such an arrangement, the rigid chain 35 has a better turning operation effect in the vehicle body 1, and the rigid chain 35 has good operation flexibility.

[0027] See Figures 4 to 6 As shown in Figures 4 to 6 , in one embodiment, the left support arm 11, the middle support arm 12 and the right support arm 13 are arranged at intervals in the transverse direction on the front side of the vehicle body 1. An accommodation groove 16 for accommodating the fork arm 2 is formed between adjacent support arms. The chain conveying port 36 is arranged at the inner end of the accommodation groove 16. A longitudinal chain guiding channel segment 341 is arranged inside the middle support arm 12. A transverse chain guiding channel segment 342 is arranged on one side of the accommodation groove 16 along the rear side of the middle support arm 12 inside the vehicle body 1. The driving wheel 32 and the driven wheel 33 are arranged in the segments of the chain guiding channel 34. The transverse chain guiding channel segment 342 and the longitudinal chain guiding channel segment 341 constitute the chain guiding channel 34. With such an arrangement, the spatial arrangement of the chain guiding channel 34 in the vehicle body 1 is compact, the space utilization rate is high, and it is convenient for the size of the vehicle body 1 to be made smaller.

[0028] See Figures 4 to 6 As shown in Figures 4 to 6 , in one embodiment, a lifting mechanism 4 is arranged at the bottom of the fork arm 2. The lifting mechanism 4 is connected to the vehicle body 1 by wire. The connecting part 37 is a magnetic head, and the magnetic head is detachably connected to the rear side of the fork arm 2. With such an arrangement, the connecting part 37 can be separated from the fork arm 2, which is convenient for the fork arm 2 to realize the lifting function. The magnetic head can be magnetically attracted to the fork arm 2 when it is energized, and the connection with the fork arm 2 can be released when the magnetic head is de-energized.

[0029] See Figures 4 to 6 As shown in Figures 4 to 6 , in one embodiment, a lifting mechanism 4 is arranged at the bottom of the fork arm 2. The lifting mechanism 4 is a scissor lifting mechanism 4 or a rigid chain lifting mechanism 4. With such an arrangement, the setting method of the lifting mechanism 4 is simple and the use effect is good.

[0030] See Figures 3 to 6 As shown in Figures 3 to 6 , in one embodiment, guide wheels 21 are respectively arranged at both ends of the bottom of the fork arm 2. With such an arrangement, the extending or retracting movement of the fork arm 2 has a good guiding effect, preventing the fork arm 2 from moving off position.

[0031] See Figures 3 to 6 As shown in Figures 3 to 6 , in one embodiment, omnidirectional drive steering wheels 14 are respectively arranged on both sides of one diagonal line at the bottom of the vehicle body 1, and free wheels 15 are respectively arranged on both sides of the other diagonal line at the bottom of the vehicle body 1. With such an arrangement, the vehicle body 1 has the function of rotating in place and can move in different directions.

[0032] Based on the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the scope of protection of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. A forklift AGV, comprising a vehicle body, a set of fork arms and a pushing mechanism; characterized in that, The pushing mechanism includes a chain drive motor, a sprocket assembly, a chain guiding channel, and a rigid chain. The sprocket assembly meshes with the rigid chain. The chain guiding channel is arranged on the vehicle body. A chain conveying port is provided on one side of the rear end of the fork arm on the vehicle body. One end of the rigid chain extending out of the chain conveying port is provided with a connecting portion connected to the rear end of the fork arm. The chain drive motor is used to drive the relative rotation of the sprocket assembly, thereby driving the relative extension amount of the rigid chain at the chain conveying port, so as to control the fork arm to extend outward or retract inward.

2. The forklift AGV according to claim 1, characterized in that, One pushing mechanism is provided corresponding to each fork arm.

3. The forklift AGV according to claim 2, characterized in that, One chain drive motor is provided. The sprocket assembly includes a driving sprocket. A transmission shaft is provided at the output end of the chain drive motor. Each driving sprocket is respectively connected to the transmission shaft through a coupling for transmission.

4. The forklift AGV according to claim 1 or 2, characterized in that, The sprocket assembly includes a driving sprocket and a driven sprocket arranged at intervals in the chain guiding channel. The rigid chain is wound around the driving sprocket and the driven sprocket at the same time.

5. The forklift AGV according to any one of claims 1 to 3, characterized in that, On the front side of the vehicle body, a left supporting arm, a middle supporting arm, and a right supporting arm are arranged at intervals in the transverse direction. An accommodating groove for accommodating the fork arm is formed between adjacent supporting arms. The chain conveying port is arranged at the inner end of the accommodating groove. A longitudinal chain guiding channel segment is arranged on the inner side of the middle supporting arm. A transverse chain guiding channel segment is arranged on one side of the accommodating groove along the rear side of the middle supporting arm inside the vehicle body. The transverse chain guiding channel segment and the longitudinal chain guiding channel segment constitute the chain guiding channel.

6. The forklift AGV according to any one of claims 1 to 3, characterized in that, A lifting mechanism is arranged at the bottom of the fork arm. The lifting mechanism is a scissor lift mechanism or a rigid chain lift mechanism.

7. The forklift AGV according to any one of claims 1 to 3, characterized in that, A lifting mechanism is arranged at the bottom of the fork arm. The lifting mechanism is connected to the vehicle body by wire. The connecting portion is a magnetic head, and the magnetic head is detachably connected to the rear side of the fork arm.

8. The forklift AGV according to claim 7, wherein Guide wheels are respectively arranged at both ends of the bottom of the fork arm.

9. The forklift AGV according to any one of claims 1 to 3, characterized in that, Omnidirectional drive castor wheels are respectively arranged on both sides of one diagonal line at the bottom of the vehicle body, and free wheels are respectively arranged on both sides of the other diagonal line at the bottom of the vehicle body.

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