AGV chassis and AGV

Abstract

The embodiment of the utility model provides an AGV chassis and an AGV, and the AGV chassis comprises a frame; the plurality of universal wheels are mounted at the bottom of the frame; the swing arm driving assemblies are mounted at the bottom of the frame, each swing arm driving assembly comprises a driving part and a damping part, the driving parts are used for driving the AGV chassis to move, and the damping parts are used for damping when the AGV chassis moves; and the electrical assembly is mounted at the top of the frame. By arranging the at least two sets of swing arm driving assemblies, the normal use functions of steering, driving, braking, parking and the like of the whole vehicle are met, the structure is simple, the failure risk is low, the cost is low, the AGV is driven to move through the driving part, the damping part can play a damping role in the moving process of the AGV, the AGV can meet the requirements of some uneven road surfaces, and bumping is avoided.

Description

Technical Field

[0001] This specification relates to the field of AGV technology, and specifically to an AGV chassis and an AGV vehicle. Background Art

[0002] In AGV applications, intelligent transport robots, as mature products, have very high requirements for sites. For uneven roads and roads with speed bumps, traditional intelligent transport robots are prone to large bumps when driving, which makes it difficult to meet usage requirements. Summary of the invention

[0003] In view of this, the embodiments of this specification provide an AGV chassis and an AGV vehicle. By setting up at least two sets of swing arm drive assemblies, the normal use functions of the whole vehicle such as steering, driving, braking, and parking are met. The structure is simple, the risk of failure is low, and the cost is low. The AGV is driven to move by the driving part, and the shock absorbing part can play a shock absorbing role during the movement of the AGV, so that the AGV can meet the needs of some uneven roads and avoid bumps.

[0004] The embodiments of this specification provide the following technical solutions: an AGV chassis, comprising:

[0005] Frame;

[0006] A plurality of universal wheels, wherein the plurality of universal wheels are installed at the bottom of the frame;

[0007] At least two sets of swing arm drive assemblies, the swing arm drive assemblies are installed at the bottom of the frame, the swing arm drive assemblies include a driving part and a shock absorbing part, the driving part is used to drive the AGV chassis to move, and the shock absorbing part performs shock absorption when the AGV chassis moves;

[0008] An electrical assembly is installed on the top of the vehicle frame.

[0009] Preferably, the driving part includes a motor, a reducer and a driving wheel, the motor is connected to an input end of the reducer, and the driving wheel is connected to an output end of the reducer.

[0010] Preferably, the shock absorbing part includes a shock absorber, a first bracket and a second bracket, the first end of the shock absorber is connected to the first bracket, the first bracket is connected to the reducer by bolts, the second end of the shock absorber is connected to the second bracket, and the second bracket is connected to the frame.

[0011] Preferably, the swing arm drive assembly further includes a power-loss brake, and the power-loss brake and the motor are installed in series at the input end of the reducer, and the power-loss brake is used to brake the motor.

[0012] Preferably, the swing arm drive assembly further comprises an articulated bushing, and the articulated bushing is mounted on the reducer.

[0013] Preferably, the swing arm drive assembly is provided with two groups, and articulated brackets are provided on opposite sides of the middle part of the frame along the width direction of the frame, and the two groups of articulated brackets are respectively connected to the two groups of swing arm drive assemblies.

[0014] Preferably, the electrical assembly includes an electrical integration box, a fuse, a power distribution box and a controller, the electrical integration box is mounted on the vehicle frame, and the fuse, the power distribution box and the controller are mounted inside the electrical integration box.

[0015] Preferably, the AGV chassis further includes a battery and a battery bracket, the battery is installed in the battery bracket, and the battery bracket is installed on the top of the frame.

[0016] Preferably, a mounting groove is formed on the top of the frame, and the electrical integration box, the battery and the battery bracket are all arranged in the mounting groove.

[0017] An AGV vehicle comprises the AGV chassis described in any one of the above items.

[0018] Compared with the prior art, the at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects:

[0019] By setting up at least two sets of swing arm drive assemblies, the normal use functions of the whole vehicle such as steering, driving, braking, and parking are met. The structure is simple, the risk of failure is low, and the cost is low. The AGV is driven by the driving part, and the shock absorbing part can play a shock absorbing role during the movement of the AGV, so that the AGV can meet the needs of some uneven roads and avoid bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the AGV chassis provided by this application;

[0022] Figure 2 It is an exploded schematic diagram of the swing arm drive assembly of the AGV chassis provided in this application.

[0023] In the figure, 1, frame; 2, universal wheel; 3, swing arm drive assembly; 31, reducer; 32, motor; 33, drive wheel; 34, first bracket; 35, shock absorber; 36, second bracket; 37, power-off brake; 4, electrical assembly; 5, battery. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0026] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0028] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0029] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0030] like Figure 1 As shown, an AGV chassis includes:

[0031] Frame 1;

[0032] A plurality of universal wheels 2, wherein the plurality of universal wheels 2 are installed at the bottom of the vehicle frame 1;

[0033] At least two sets of swing arm drive assemblies 3, the swing arm drive assemblies 3 are installed at the bottom of the frame 1, the swing arm drive assemblies 3 include a driving part and a shock absorbing part, the driving part is used to drive the AGV chassis to move, and the shock absorbing part performs shock absorption when the AGV chassis moves;

[0034] The electrical assembly 4 is installed on the top of the frame 1 .

[0035] By setting at least two sets of swing arm drive assemblies 3, the normal use functions of the whole vehicle such as steering, driving, braking, parking, etc. are met, the structure is simple, the risk of failure is low, and the cost is low. The AGV is driven by the drive unit to rotate on the spot in a small space, and the steering is more sensitive. The shock absorbing unit can play a shock absorbing role during the movement of the AGV, so that the AGV can meet the needs of some uneven roads, such as: passing through speed bumps, passing through speed bumps on one side, climbing slopes, etc., to avoid bumps, and meet the low-cost low-speed load-bearing transportation needs of 500kg and above.

[0036] It should be noted that by integrating the swing arm drive assembly 3, while being able to realize the parking brake, braking, driving and shock absorption functions, it is possible to simplify the structure, optimize the layout space, facilitate installation and disassembly, and reduce costs.

[0037] It should also be noted that the universal wheel 2 is a shock-absorbing universal wheel, which can further improve the shock-absorbing effect when the AGV is moving. Four groups of shock-absorbing universal wheels 2 are provided, which are fixed to the frame 1 from bottom to top by four bolts respectively.

[0038] like Figure 1-Figure 2 As shown, in some embodiments, the driving unit includes a motor 32, a reducer 31 and a driving wheel 33, the motor 32 is connected to the input end of the reducer 31, and the driving wheel 33 is connected to the output end of the reducer 31. When the AGV needs to operate, the motor 32 is started, and the driving wheel 33 is driven to rotate after being decelerated by the reducer 31, thereby realizing the movement of the AGV.

[0039] like Figure 1-Figure 2As shown, in some embodiments, the shock absorbing part includes a shock absorber 35, a first bracket 34 and a second bracket 36, the first end of the shock absorber 35 is connected to the first bracket 34, the first bracket 34 is connected to the reducer 31 by bolts, the second end of the shock absorber 35 is connected to the second bracket 36, and the second bracket 36 is connected to the frame 1. By setting the shock absorber 35, the lower end of the shock absorber 35 is connected to the first bracket 34, and the upper end of the shock absorber 35 is connected to the second bracket 36, which can play a shock absorbing role during the movement of the AGV.

[0040] like Figure 1-Figure 2 As shown, in some embodiments, the swing arm drive assembly 3 also includes a power-loss brake 37, and the power-loss brake 37 and the motor 32 are installed in series at the input end of the reducer 31, and the power-loss brake 37 is used to brake the motor 32. By setting the power-loss brake 37, the power-loss brake 37 is set between the input end of the reducer 31 and the motor 32, the motor 32 can be braked, thereby achieving the braking operation of the AGV.

[0041] In some embodiments, the swing arm drive assembly 3 further includes an articulated bushing, and the articulated bushing is mounted on the reducer 31 .

[0042] It should be noted that the shock absorber 35 and the articulated bushing are installed on the housing of the reducer 31, and a longitudinal swing arm structure is formed with the housing of the reducer 31 as the main body. The motor 32 and the power-off brake 37 are installed in series on the input shaft of the reducer, and the drive wheel 33 is installed at the output end of the reducer to form a swing arm drive assembly 3.

[0043] like Figure 1 As shown, in some embodiments, the swing arm drive assembly 3 is provided with two groups, and along the width direction of the frame 1, hinged brackets are provided on opposite sides of the middle part of the frame 1, and the two groups of hinged brackets are respectively connected to the two groups of swing arm drive assemblies 3, and the swing arm drive assembly 3 is connected to the frame 1 through two places, one is the articulated frame 1 and the hinged end on the swing arm drive assembly 3 are connected by bolts, and the other is the second bracket 36 at the upper end of the shock absorber 35 and the frame 1 are connected by bolts.

[0044] It should be noted that, by arranging the swing arm drive assembly 3 in the middle part of the frame 1, the centrally placed swing arm drive assembly 3 ensures that the rotational inertia of the heavy upper body is small, and can realize the action of rotating on the spot in a small space, and the steering is more sensitive.

[0045] like Figure 1As shown, in some embodiments, the electrical assembly 4 includes an electrical integrated box, a fuse, a power distribution box and a controller. The electrical integrated box is installed on the frame 1, and the fuse, the power distribution box and the controller are installed in the electrical integrated box. The fuse, the power distribution box and the controller are integrated in the electrical integrated box to form an electrical assembly 4 that meets the IP67 protection safety level.

[0046] like Figure 1 As shown, in some embodiments, the AGV chassis also includes a battery 5 and a battery bracket, the battery 5 is installed in the battery bracket, the battery bracket is installed on the top of the frame 1, the battery bracket is installed on the frame 1, the battery 5 is placed in the battery bracket, and the battery bracket is connected to the battery pressure plate by bolts to fix the battery 5 on the frame 1.

[0047] like Figure 1 As shown, in some embodiments, a mounting groove is formed on the top of the frame 1, and the electrical integrated box, the battery and the battery bracket are all arranged in the mounting groove. By providing the mounting groove for placing the electrical integrated box, the battery and the battery bracket, the electrical integrated box and the battery can be prevented from exceeding the top of the frame 1.

[0048] See also Figure 1-Figure 2 Based on the same inventive concept, an embodiment of this specification provides an AGV vehicle, and the AGV vehicle includes any of the above-mentioned AGV chassis.

[0049] During implementation, by adopting the above-mentioned AGV chassis, only two drive motors 32 and two power-off brakes 37 are used as actuators, which can meet the normal use functions of the whole vehicle such as steering, driving, braking, and parking. The structure is simple, the risk of failure is low, and the cost is low; the central drive wheel 33 ensures that the rotational inertia of the heavy upper body is small, and can realize the action of rotating on the spot in a small space, and the steering is more sensitive; all three axes are equipped with shock-absorbing structures, and the AGV can meet some requirements of uneven roads, such as: passing through speed bumps, passing through speed bumps on one side, climbing slopes, etc.

[0050] The same or similar parts between the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the method embodiment described later, since it corresponds to the system, the description is relatively simple, and the relevant parts can be referred to the partial description of the system embodiment.

[0051] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An AGV chassis, characterized in that: include: Frame; A plurality of universal wheels, wherein the plurality of universal wheels are installed at the bottom of the frame; At least two sets of swing arm drive assemblies, the swing arm drive assemblies are installed at the bottom of the frame, the swing arm drive assemblies include a driving part and a shock absorbing part, the driving part is used to drive the AGV chassis to move, and the shock absorbing part performs shock absorption when the AGV chassis moves; An electrical assembly, the electrical assembly being mounted on the top of the frame; The driving unit includes a motor, a reducer and a driving wheel, the motor is connected to an input end of the reducer, and the driving wheel is connected to an output end of the reducer; The shock absorbing part includes a shock absorber, a first bracket and a second bracket, the first end of the shock absorber is connected to the first bracket, the first bracket is connected to the reducer by bolts, the second end of the shock absorber is connected to the second bracket, and the second bracket is connected to the frame.

2. The AGV chassis according to claim 1, characterized in that: The swing arm drive assembly also includes a power-loss brake, which is installed in series with the motor at the input end of the reducer, and the power-loss brake is used to brake the motor.

3. The AGV chassis according to claim 2, characterized in that: The swing arm drive assembly also includes an articulated bushing, which is mounted on the reducer.

4. The AGV chassis according to any one of claims 1 to 3, characterized in that: The swing arm drive assembly is provided with two groups, and articulated brackets are provided on opposite sides of the middle part of the frame along the width direction of the frame, and the two groups of articulated brackets are respectively connected to the two groups of swing arm drive assemblies.

5. The AGV chassis according to claim 1, characterized in that: The electrical assembly comprises an electrical integration box, a fuse, a power distribution box and a controller. The electrical integration box is mounted on the vehicle frame, and the fuse, the power distribution box and the controller are mounted inside the electrical integration box.

6. The AGV chassis according to claim 5, characterized in that: The AGV chassis also includes a battery and a battery bracket, the battery is installed in the battery bracket, and the battery bracket is installed on the top of the frame.

7. The AGV chassis according to claim 6, characterized in that: A mounting groove is formed on the top of the vehicle frame, and the electrical integrated box, the battery and the battery bracket are all arranged in the mounting groove.

8. An AGV vehicle, characterized in that: The AGV vehicle comprises the AGV chassis according to any one of claims 1-7.

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