AGV trolley

Abstract

The utility model relates to an AGV (Automatic Guided Vehicle). The AGV trolley comprises a frame, a supporting plate is arranged on the frame, the frame comprises a mounting bottom plate, a front swing arm, a left swing arm and a right swing arm are hinged to the upper side face of the mounting bottom plate, and the left swing arm and the right swing arm are symmetrically arranged. A first universal wheel and a second universal wheel are arranged at the two ends of the front swing arm respectively, a first driving wheel, a first driving wheel driving motor and a third universal wheel are installed on the left swing arm, and a second driving wheel, a second driving motor and a fourth universal wheel are arranged on the right swing arm. The installation bottom plate is provided with a first through hole for the first universal wheel and the second universal wheel to pass through, a second through hole for the third universal wheel and the fourth universal wheel to pass through and a third through hole for the driving wheels and the corresponding driving motors to move up and down to pass through. Compared with the prior art, the size of the AGV trolley in the height direction can be greatly reduced through the design, the flat design of the AGV trolley is facilitated, and the AGV trolley is convenient to use when facing a goods shelf with a small gap below.

Description

TECHNICAL FIELD

[0001] The utility model relates to a carrying trolley technical field, concretely relates to an AGV trolley. BACKGROUND

[0002] AGV trolley is a kind of automatic guided vehicle, also called automatic guided vehicle or automatic guided vehicle. Adopt automatic or manual way to load goods, according to the set route automatic travel or drag the loading platform car to the designated place, then use automatic or manual way to load and unload goods industrial vehicle.

[0003] The existing AGV trolley generally includes frame, is provided with support plate on the frame, is provided with driving wheel and helps the universal wheel of steering and balancing frame on the frame. Because the working environment of AGV trolley can exist uneven road surface problem, therefore need to set up self-adapting device on AGV trolley to adapt to uneven road surface. The Chinese invention patent application with the application publication number CN 119037550 A discloses a road surface self-adapting AGV carrying vehicle chassis, including front swing balance wheel assembly, left swing balance wheel assembly and right swing balance wheel assembly, above-mentioned each swing balance wheel assembly is hinged connection with frame. In actual application, when AGV carrying vehicle passes through bumpy road surface, front swing balance wheel assembly, left swing balance wheel assembly and right swing balance wheel assembly are all along the height direction self-execution swing motion due to ground reaction force, and the swing direction of left swing balance wheel assembly and right swing balance wheel assembly is different from the swing direction of front swing balance wheel assembly. But the structure of the AGV trolley chassis, each swing balance wheel assembly includes swing balance, because front swing crossbeam is U-shaped structure, and left swing crossbeam and right swing crossbeam are all set in the lower of frame, leading to the height of entire AGV trolley is higher, is not conducive to the AGV trolley drilling into the lower space smaller goods shelf below and carrying, inconvenient to use. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of AGV trolley, to solve the technical problem of inconvenient use caused by the higher overall height in prior art.

[0005] To achieve the above object, the utility model discloses an AGV dolly adopts the following technical scheme: an AGV dolly, including the frame, be provided with the support plate on the frame, the frame includes the installation bottom plate, the upper side of installation bottom plate is hinged with the front swing arm, left swing arm and right swing arm, and left swing arm and right swing arm are symmetrically arranged, the both ends of front swing arm are provided with first universal wheel and second universal wheel respectively, first drive wheel, first drive wheel drive motor and third universal wheel are installed on left swing arm, and second drive wheel, second drive motor and fourth universal wheel are provided on right swing arm, first through -hole for the first universal wheel and second universal wheel are provided on the installation bottom plate, the second through -hole for third universal wheel and fourth universal wheel and the third through -hole for the drive wheel and corresponding drive motor are moved through upwards and downwards.

[0006] The left side of the upper side of the installation bottom plate is provided with the left side support beam, and the right side is provided with the right side support beam, and the length of the left and right side support beams extends along the front and back directions, and the support plate is fixed on the left and right side support beams.

[0007] The upper side of the installation bottom plate is provided with the U-shaped support frame downwardly open above the second through -hole, and each drive motor is located in the corresponding U-shaped support frame, and the support plate is fixedly connected with the upper plate of each U-shaped support frame.

[0008] The left and right side support beams are located above the corresponding drive wheels, and the lower side of the left and right side support beams is provided with a downwardly open groove for accommodating the corresponding drive wheel.

[0009] The front swing arm includes an intermediate plate and horizontal plates located at both ends of the intermediate plate, the intermediate plate is used for hinged connection with the frame, the first universal wheel and the second universal wheel are respectively installed on the two horizontal plates, and the fourth through -hole for the lower part of the intermediate plate is provided on the installation bottom plate.

[0010] The left and right sides of the bottom of the intermediate plate are provided with slope surfaces, so that the bottom of the intermediate plate has a small size part with gradually reducing size from top to bottom and left to right, and the opening size of the fourth through -hole in the left and right directions can be reduced.

[0011] The second through -hole and the third through -hole of each side are communicated through the communication hole, and the communication hole penetrates the installation bottom plate upwards and downwards and is used for the lower end of the corresponding swing arm to pass upwards and downwards.

[0012] The installation bottom plate includes a horizontal bottom plate, and front, rear, left and right surrounding plates provided on the horizontal bottom plate, and the front swing arm, the left swing arm and the right swing arm are located inside the space surrounded by the front, rear, left and right surrounding plates.

[0013] The beneficial effects of this utility model are as follows: By setting the front, left, and right swing arms above the mounting base plate and hinged to it, and by providing through holes on the mounting base plate for the corresponding casters and drive wheels to pass through during the swinging process, this design significantly reduces the height dimension of the AGV trolley compared to existing technologies. This facilitates a flattened design for the AGV trolley and makes it easier to use when facing shelves with small gaps below. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of one embodiment of an AGV (Automated Guided Vehicle) of this utility model;

[0015] Figure 2 yes Figure 1 A structural diagram from another angle;

[0016] Figure 3 yes Figure 1 Internal structure diagram of the AGV (Automated Guided Vehicle) trolley;

[0017] Figure 4 yes Figure 1 Schematic diagram of the front swing arm, left swing arm and right swing arm;

[0018] Figure 5 yes Figure 1 A schematic diagram of the structure for installing the base plate. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0020] It should be noted that, unless otherwise defined, the technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The use of "belonging" in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this invention.

[0021] An embodiment of this utility model of an AGV (Automated Guided Vehicle) is as follows: Figures 1-5As shown, the vehicle frame 1 is provided with a support plate 2 for lifting the goods shelf. The vehicle frame 1 comprises a mounting bottom plate 10, on which a front swing arm 3, a left swing arm 7 and a right swing arm 6 are hingedly connected, and the left swing arm 7 and the right swing arm 6 are symmetrically arranged. In this embodiment, the mounting bottom plate 10 comprises a horizontal bottom plate, and a front baffle, a rear baffle, a left baffle and a right baffle arranged on the horizontal bottom plate, and the front swing arm, the left swing arm and the right swing arm are all located inside the space surrounded by the front baffle, the rear baffle, the left baffle and the right baffle. The left side of the upper side of the mounting bottom plate 10 is provided with a left side support beam 31, and the right side is provided with a right side support beam 30, and the lengths of the left and right side support beams both extend in the front-rear direction, and the support plate 1 is fixed on the left and right side support beams. The mounting bottom plate 10 is provided with a first U-shaped support frame 18 and a second U-shaped support frame 17, and the support plate 1 is fixedly connected with the two U-shaped support frames.

[0022] The front swing arm 3 is provided with a first universal wheel 5 at one end and a second universal wheel 4 at the other end. The front swing arm 3 comprises a middle plate and horizontal plates located at both ends of the middle plate, and the horizontal plates comprise a first horizontal plate 20 and a second horizontal plate 19, the first horizontal plate 20 is provided with the first universal wheel 5, and the second horizontal plate 19 is provided with the second universal wheel 4. The mounting bottom plate 10 is provided with a first through hole 13 for the first universal wheel 5 and the second universal wheel 4 to pass through during swinging. The middle plate is provided with a first hinge hole 27, the mounting bottom plate is provided with a first rotating shaft seat 21, the first rotating shaft seat is provided with a first rotating shaft, and the middle plate is hingedly connected with the vehicle frame through the first hinge hole and the first rotating shaft. The mounting bottom plate is provided with a fourth through hole 14 for the lower part of the middle plate to pass through, and in this embodiment, the left and right sides of the bottom of the middle plate are both provided with a slope surface 25, so that the bottom of the middle plate has a small size part 26 with gradually decreasing size from top to bottom and left to right, which can reduce the size of the fourth through hole 14 in the left-right direction.

[0023] The first driving wheel 11, the first driving wheel driving motor 15 and the third universal wheel 12 are arranged on the left swing arm 7, and the second driving wheel 8, the second driving wheel driving motor 20 and the fourth universal wheel 9 are arranged on the right swing arm 6. The second through hole 34 for the third and fourth universal wheels to pass through is arranged on the mounting plate, and the third through hole 16 for each driving wheel and the corresponding driving motor to pass through is also arranged on the mounting plate. The second through hole and the third through hole on each side are communicated through the communication hole 33, and the communication hole penetrates the mounting plate from top to bottom and is used for the lower end of the corresponding swing arm to pass through from top to bottom. Specifically, the second pivot seat and the third pivot seat 22 are arranged on the mounting plate, the second pivot is arranged on the second pivot seat, and the third pivot is arranged on the third pivot seat. The second hinge hole 29 is arranged on the left swing arm 7 and is used for being rotationally connected with the second pivot, and the first driving wheel and the third universal wheel are located on the two sides of the second hinge hole. The third hinge hole 28 is arranged on the right swing arm 6 and is used for being rotationally connected with the third pivot, and the second driving wheel and the fourth universal wheel are located on the two sides of the third hinge hole. In the embodiment, the third horizontal plate 24 is arranged on the left swing arm, and the third universal wheel 12 is arranged on the third horizontal plate. The fourth horizontal plate 23 is arranged on the right swing arm, and the fourth universal wheel 9 is arranged on the fourth horizontal plate.

[0024] In the embodiment, each U-shaped support frame is located above the corresponding second through hole, and each driving motor is located in the corresponding U-shaped support frame. In this way, the driving motor can be protected, and the stability and support capacity of the support plate can be improved. The left and right support beams are located above the corresponding driving wheels, and the downward-opening groove 32 for accommodating the corresponding driving wheel is arranged on the lower side of each of the left and right support frames. In this way, the driving wheel can be hidden in the frame, and the overall height of the AGV trolley in the height direction can be reduced.

[0025] In the above description of the present specification, unless otherwise explicitly specified and limited, the terms "fixed", "mounted", "connected" or "linked" and the like should be understood in a broad sense. For example, as to the term "connected", it can be fixed connection, detachable connection or integral; it can be mechanical connection, electrical connection; it can be direct connection, indirect connection through an intermediate medium, or internal connection of two elements or interaction relationship between two elements. Therefore, unless otherwise explicitly limited in the present specification, the above terms can be understood in the specific meaning in the present application by the person skilled in the art according to the specific circumstances.

[0026] According to the above description of the present specification, those skilled in the art can also understand that the terms used such as "upper", "lower", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "transverse", "clockwise" or "counterclockwise" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings of the present specification, which are only for the purpose of facilitating the description of the present application and simplifying the description, and are not explicitly or implicitly indicated that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation, therefore the above orientation or positional relationship terms cannot be understood or interpreted as a limitation on the present application.

[0027] In addition, the terms "first" or "second" and the like used in the present specification are terms used to refer to numbers or ordinal numbers only for the purpose of description, and can not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" or "second" can explicitly or implicitly include at least one of the features. In the description of the present specification, the meaning of "plurality" is at least two, for example, two, three or more, etc., unless otherwise explicitly and specifically limited.

Claims

1. An AGV dolly comprising a dolly frame, a support plate being provided on the dolly frame, characterized in that: The frame comprises a mounting bottom plate, a front swing arm, a left swing arm and a right swing arm are hingedly connected to the upper side of the mounting bottom plate, and the left swing arm and the right swing arm are symmetrically arranged; the two ends of the front swing arm are respectively provided with a first universal wheel and a second universal wheel, the left swing arm is provided with a first driving wheel, a first driving motor and a third universal wheel, the right swing arm is provided with a second driving wheel, a second driving motor and a fourth universal wheel, the mounting bottom plate is provided with a first through hole for the first and second universal wheels to pass through, a second through hole for the third and fourth universal wheels to pass through, and a third through hole for the driving wheels and the corresponding driving motors to pass through.

2. The AGV of claim 1, wherein: The left side of the upper side of the mounting bottom plate is provided with a left side support beam, and the right side is provided with a right side support beam, the lengths of the left and right side support beams extend in the front-rear direction, and the support plate is fixed to the left and right side support beams.

3. The AGV of claim 2, wherein: The mounting bottom plate is provided with a U-shaped support frame opening downward above the second through hole, each driving motor is located in the corresponding U-shaped support frame, and the support plate is fixedly connected with the upper plate of each U-shaped support frame.

4. The AGV of claim 2, wherein: The left and right side support beams are located above the corresponding driving wheels, and the lower side of each of the left and right side support beams is provided with a downward-opening groove for accommodating the corresponding driving wheel.

5. The AGV of any one of claims 1-4, wherein: The front swing arm comprises an intermediate plate and horizontal plates located at the two ends of the intermediate plate, the intermediate plate is used for hingedly connecting with the frame, the first universal wheel and the second universal wheel are respectively mounted on the two horizontal plates, and the mounting bottom plate is provided with a fourth through hole for the lower part of the intermediate plate to pass through.

6. The AGV of claim 5, wherein: The left and right sides of the bottom of the intermediate plate are provided with slope surfaces, so that the bottom of the intermediate plate has a small-size part with gradually decreasing left and right dimensions from top to bottom, and the fourth through hole can be reduced in size in the left-right direction.

7. The AGV vehicle according to any one of claims 1 to 4, characterized in that: The second through hole and the third through hole on each side are communicated through a communication hole, the communication hole penetrates the mounting bottom plate from top to bottom and is used for the lower end of the corresponding swing arm to pass through.

8. The AGV of claim 1, wherein: The mounting bottom plate comprises a horizontal bottom plate, a front wall plate, a rear wall plate, a left wall plate and a right wall plate arranged on the horizontal bottom plate, and the front swing arm, the left swing arm and the right swing arm are located inside the space surrounded by the front wall plate, the rear wall plate, the left wall plate and the right wall plate.

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