Rescue device for automatic guided vehicle

Abstract

The utility model discloses a rescue device for an automatic guided vehicle, which is arranged on a tool fixing piece of the automatic guided vehicle, is used for suspending a steering wheel below a steering wheel mounting plate, and comprises a connecting workpiece, a nut and a steering wheel body hanging shaft. The connecting workpiece comprises a hook and a screw. When the AGV encounters a steering wheel fault and cannot walk, the steering wheel body hanging shaft is hung on the lower side of the steering wheel mounting plate where the steering wheel with the fault is located; then the hook is hung on the hanging shaft of the steering wheel body, and the nut and the screw are screwed up until the steering wheel is suspended; and then the automatic guided vehicle can be manually pushed to the maintenance position for processing. According to the invention, the problem that the AGV cannot be moved during operation due to faults is solved, the equipment fault processing time is shortened, and the production efficiency is improved; the structure is simple and operation is convenient; and the applicability is high, and different rescue devices can be designed according to different AGV bodies.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automatic guided vehicle (AGV), and relates to the fault rescue of automatic guided vehicle, in particular to a rescue device for automatic guided vehicle. BACKGROUND

[0002] Automated Guided Vehicle (AGV) is a kind of transport vehicle equipped with electromagnetic or optical automatic navigation device, which can travel along the specified navigation path, has safety protection and various transfer functions, and is widely used in logistics, warehousing, manufacturing and other industries.

[0003] However, during the use of AGV, faults may occur, which causes the driving wheel (i.e. rudder wheel) to be unable to work, so that the whole vehicle is in a paralyzed state. At this time, if AGV is to be separated from the production line, it is usually necessary to use a travelling crane to lift it and then separate it from the production line. This way not only costs a lot of time, but also has a lifting safety risk.

[0004] CN114954376A provides a rescue mechanism convenient for front and rear steering, which comprises a front steering unit and a rear steering unit, the rear steering unit comprises a manual steering assembly and two rear steering assemblies, the two rear steering assemblies are arranged in parallel, one side of the two rear steering assemblies is respectively hinged to two ends of the manual steering assembly, and the other side of the two rear steering assemblies is provided with the front steering unit, the front steering unit is used for controlling the steering of the front end of the rescued equipment, and the manual steering assembly and the two rear steering assemblies are used for controlling the steering of the rear end of the rescued equipment. The invention is reasonable in design, the one-turn disc of the front steering unit can realize steering in a larger angle range relative to the connecting rod; and the introduction of the rear steering unit can complete the steering adjustment of the rescued equipment in a small range.

[0005] In addition, the existing rescue equipment is mainly automobile rescue or aircraft rescue equipment, and its structure and function are not suitable for AGV rescue. The main reason is that the weight of AGV is relatively light, but the ground clearance is low, and the wheel set may not be able to walk.

[0006] Therefore, it is particularly important to design a device specially used for AGV fault rescue. How to improve the rescue and maintenance efficiency and reduce the operation risk and time is a problem to be solved. INVENTION CONTENTS

[0007] Based on the above-mentioned shortcomings in the prior art, the purpose of the present application is to provide a rescue device for automatic guided vehicle, so as to solve the problem that AGV cannot be quickly and safely moved to the maintenance position when it is in fault in the prior art.

[0008] To solve the above problems, the utility model adopts the following technical scheme:

[0009] The utility model provides a kind of rescue device for automatic guided vehicle, which is arranged on the tool fixing part of automatic guided vehicle, for making rudder wheel mounting plate below rudder wheel suspended.The rescue device includes the following structure: connecting workpiece, nut and rudder wheel body hanging shaft;

[0010] The connecting workpiece includes a hook and a screw, the upper end of the screw is a threaded end, and the lower end of the screw is fixedly connected with the hook,

[0011] The tool fixing part is provided with a hole, and the threaded end of the screw passes through the hole and is connected with the nut above the tool fixing part.

[0012] The rudder wheel body hanging shaft is hung on the rudder wheel mounting plate,

[0013] The hook is provided with a groove matched with the rudder wheel body hanging shaft,

[0014] When the nut is tightened, the screw and the hook below move upward, so that the groove on the hook drives the rudder wheel body hanging shaft and the rudder wheel mounting plate to move upward, realizing the suspension of the rudder wheel below the rudder wheel mounting plate.

[0015] Further, the fixed connection between the hook and the screw is any one of welding or threaded connection; preferably, it is welding.

[0016] Further, a gasket is arranged between the screw and the nut; for shock absorption, etc.

[0017] Further, the groove on the hook has an arc-shaped, rectangular, rounded rectangular, or any other shape matched with the rudder wheel body hanging shaft, to ensure that the hook and the rudder wheel body hanging shaft can be firmly matched and not fall off.

[0018] Further, the bottom of the AGV vehicle body is provided with a vehicle load wheel; the front end and the rear end of the AGV vehicle body are both provided with a rudder wheel mounting plate, and the rudder wheel mounting plate is rotatably connected with the vehicle body through a connecting pin.

[0019] Further, each rudder wheel mounting plate is provided below with a rudder wheel driven by a motor, as a driving wheel of the AGV vehicle body.

[0020] Further, the rudder wheel body hanging shaft is hung on the lower side of the rudder wheel mounting plate where the rudder wheel of the AGV to be rescued fails, and after being lifted by the connecting workpiece, the rudder wheel is suspended.

[0021] Further, the connecting workpiece is made of 45# steel or high carbon steel; the tool fixing part is made of 45# steel or high carbon steel; and the rudder wheel body hanging shaft is made of 45# steel or high carbon steel.

[0022] Specifically, when the AGV encounters a failure, the steering wheel may be locked or placed in a different direction from the load wheel, making it unable to walk on the road. At this time, the steering wheel body hanging shaft of the rescue device provided by the application is hung on the lower side of the steering wheel mounting plate where the failed steering wheel of the AGV to be rescued is located, and the nut is tightened, so that the failed steering wheel is suspended. At this time, the AGV body can be pushed by external force, and then the AGV is moved to the repair position for processing by manual pushing or pulling.

[0023] The rescue device for automatic guided vehicle provided by the application has the following advantages:

[0024] 1. Simple structure and convenient operation: through the simple design of the steering wheel body hanging shaft and the connecting workpiece, the failed steering wheel of the AGV can be quickly suspended, which is convenient for manual or mechanical traction and movement.

[0025] 2. Improve the efficiency of equipment failure handling: solve the problem that the AGV cannot be moved due to steering wheel failure during operation, reduce the equipment downtime, and improve the production efficiency.

[0026] 3. Strong applicability: suitable for various types of AGV, can adapt to different steering wheel sizes and vehicle body structures. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The installation schematic view of the rescue device for automatic guided vehicle provided by the application;

[0028] REFERENCE NUMERALS:

[0029] 0 ground; 1 connecting workpiece;

[0030] 2 tool fixing piece, 3 nut, 4 steering wheel body hanging shaft, 5 motor, 6 steering wheel, 7 vehicle load wheel, 8 connecting pin, 9 steering wheel mounting plate. DETAILED DESCRIPTION

[0031] In order for those skilled in the art to better understand the technical solutions of the application, the application will be described in detail below in conjunction with specific embodiments. It should be pointed out that the following embodiments will help those skilled in the art to further understand the application, but do not limit the application in any form. It should be pointed out that for those skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made. These all belong to the protection scope of the application.

[0032] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] Embodiment 1 Rescue device for automatic guided vehicle

[0034] The device provided in the embodiment can effectively solve the problem that AGV cannot move due to rudder wheel failure. As shown in the figure, the rescue device mainly comprises a connecting workpiece 1, a nut 3 and a rudder body hanging shaft 4, and these components work together to lift the faulty rudder wheel off the ground 0. Figure 1

[0035] The connecting workpiece 1 is the core component of the device and is composed of a hook 1-1 and a screw 1-2. The upper end of the screw 1-2 is provided with a thread, and the lower end is fixedly connected with the hook 1-1 by welding. In actual assembly, the operator first passes the screw 1-2 through the reserved hole of the tool fixing piece 2, and then fastens it above the tool fixing piece 2 with the nut 3. At the same time, in order to improve the stability of the connection, a gasket is installed between the screw 1-2 and the nut 3, which not only plays a damping role, but also prevents the nut from loosening. The hook 1-1 is provided with a groove matched with the rudder body hanging shaft 4, the cross-sectional shape of the groove is semicircular, which ensures close cooperation with the hanging shaft; and the diameter of the groove is slightly larger than the diameter of the rudder body hanging shaft 4, which can exactly hang the rudder body hanging shaft 4. The tool fixing piece 2 is located on the AGV vehicle body to be rescued, and is used to firmly install the connecting workpiece 1 on the AGV vehicle body, so as to ensure that it will not loosen during movement. The positions of the tool fixing pieces 2 provided on different AGV vehicle bodies are different, and the size of the connecting workpiece 1 and the rudder body hanging shaft 4 can be adjusted for adaptation.

[0036] ​When the steering wheel 6 of the AGV fails (such as steering wheel lock or direction misalignment), the rescue personnel first hang the steering wheel body hanging shaft 4 under the corresponding steering wheel mounting plate 9 of the failed steering wheel. With the gradual tightening of the nut 3, the screw 1-2 will move the hook 1-1 upward, and through the cooperation of the groove and the steering wheel body hanging shaft 4, the entire steering wheel mounting plate 9 will eventually be lifted off the ground 0 together with the failed steering wheel 6.

[0037] To ensure the strength of the device, the connecting workpiece 1, the tool fixing piece 2 and the steering wheel body hanging shaft 4 are made of 45 steel or high carbon steel. This design not only has a simple and reliable structure, but also is convenient to operate, which can significantly improve the maintenance efficiency of AGV equipment. When a failure occurs, the maintenance personnel can complete the installation of the rescue device in a short time, and move the AGV to the repair position by artificial pushing or pulling, effectively avoiding the problem of whole machine paralysis caused by steering wheel failure.

[0038] In practical application, the bottom of the typical AGV vehicle body is provided with a plurality of vehicle load wheels 7, and rotatable steering wheel mounting plates 9 are installed at the front and rear ends. These mounting plates are connected to the vehicle body through connecting pins 8, and each mounting plate is provided below with a steering wheel 6 driven by a motor 5. When a steering wheel fails, the device is used to suspend it, and the weight of the vehicle body is completely borne by the other normal load wheels. At this time, since the steering wheel is suspended, the AGV is affected by the friction of the ground 0 during movement, and only a small external force is needed to easily move the AGV.

[0039] In addition, the rescue device of the embodiment can also be adjusted and optimized according to different AGV models to meet the rescue needs in different scenes.

[0040] The above description of the embodiments is for the convenience of the ordinary skilled person in the art to understand and use the application. Those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described herein to other embodiments without having to go through creative labor. Therefore, the present application is not limited to the above embodiments, and those skilled in the art can make improvements and modifications within the scope of the present application without departing from the scope of the present application.

Claims

1. A rescue device for an automated guided vehicle, which is arranged on a tool fixture (2) of the automated guided vehicle, for suspending a tiller wheel (6) below a tiller wheel mounting plate (9), characterized in that, The rescue device comprises a connecting workpiece (1), a nut (3) and a rudder body hanging shaft (4); The connecting workpiece (1) comprises a hook (1-1) and a screw (1-2), the upper end of the screw (1-2) is a threaded end, and the lower end of the screw (1-2) is fixedly connected with the hook (1-1), A hole is formed in the tool fixing piece (2), and the threaded end of the screw (1-2) penetrates through the hole and is connected with the nut (3) above the tool fixing piece (2); The rudder body hanging shaft (4) is hung on the rudder mounting plate (9), The hook (1-1) is provided with a groove matched with the rudder body hanging shaft (4), When the nut (3) is tightened, the screw (1-2) and the hook (1-1) below move upward, so that the groove on the hook (1-1) drives the rudder body hanging shaft (4) and the rudder mounting plate (9) to move upward, and the rudder (6) below the rudder mounting plate (9) is suspended.

2. The rescue device for an automated guided vehicle according to claim 1, characterized in that The fixed connection between the hook (1-1) and the screw (1-2) is any one of welding or threaded connection.

3. The rescue device for an automated guided vehicle according to claim 1, wherein A gasket is arranged between the screw (1-2) and the nut (3).

4. The rescue device for an automated guided vehicle according to claim 1, wherein The groove on the hook (1-1) has a groove surface shape matched with the rudder body hanging shaft (4), and is selected from an arc shape, a rectangular shape or a rounded rectangular shape.

5. The rescue device for an automated guided vehicle according to claim 1, wherein The bottom of the AGV body is provided with a vehicle load wheel (7).

6. The rescue device for an automated guided vehicle according to claim 1, wherein The front end and the rear end of the AGV body are both provided with a rudder mounting plate (9), and the rudder mounting plate (9) is rotatably connected with the AGV body through a connecting pin (8).

7. The rescue device for an automated guided vehicle according to claim 1, wherein A rudder (6) is arranged below each rudder mounting plate (9).

8. The rescue device for an automated guided vehicle according to claim 1, wherein The rudder (6) is driven by a motor (5) and serves as a driving wheel of the AGV body.

9. The rescue device for an automated guided vehicle according to claim 1, wherein The rudder body hanging shaft (4) is hung below the rudder mounting plate (9) where the rudder (6) of the AGV to be rescued fails, and after being lifted by the connecting workpiece (1), the rudder (6) is suspended.

10. The rescue device for an automated guided vehicle according to claim 1, wherein The connecting workpiece (1), the tool fixing piece (2) and the rudder body hanging shaft (4) are all made of 45# steel or high carbon steel.

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