Chassis of AGV (Automatic Guided Vehicle)

Abstract

The utility model discloses a chassis of an AGV (Automatic Guided Vehicle). A driving wheel floating mechanism arranged on the chassis comprises a driving wheel, a driving motor, a driving rotating shaft, a driving floating bracket and driving trundles, driving supports are arranged on the two sides of the chassis. The driving floating bracket is rotationally connected to the driving bracket through a driving rotating shaft; the driving wheel is rotationally connected to one end of the driving floating bracket; the driving motor is mounted at one end of the driving floating bracket, and a motor shaft is connected to the driving wheel; the driving caster is rotationally connected to the other end of the driving floating bracket; a driven wheel floating mechanism comprises two driven trundles, a driven floating support and a driven rotating shaft. A driven bracket is arranged in the middle of one end of the chassis; the driven floating bracket is rotationally connected to the driven bracket through a driven rotating shaft; the two driven trundles are rotationally connected to the two ends of the driven support correspondingly. According to the AGV chassis, the adaptability of the chassis to the complex ground can be effectively improved, and the overall operation stability is higher.

Description

Technical Field

[0001] The utility model relates to an AGV transport vehicle chassis. Background Art

[0002] The chassis drive structure commonly used by AGV transporters is equipped with drive wheels, which are used to drive the vehicle, and then floating casters are installed on the chassis to provide floating support for the chassis, thereby improving the chassis' adaptability to uneven ground. Such a floating support structure is not very stable. For complex ground, the floating support close to a single floating caster may cause the chassis to tip over. Utility Model Content

[0003] The utility model provides an AGV transporter chassis to solve the above-mentioned technical problems, and specifically adopts the following technical solutions:

[0004] An AGV transport vehicle chassis comprises: a chassis; driving wheel floating mechanisms for driving the chassis to operate are symmetrically arranged on both sides of the chassis; a driven wheel floating mechanism for assisting in driving the chassis to operate is arranged at one end of the chassis; the driving wheel floating mechanism comprises: a driving wheel, a driving motor, an active rotating shaft, an active floating bracket and an active caster; active brackets are arranged on both sides of the chassis; the active floating bracket is rotatably connected to the active bracket through an active rotating shaft; the driving wheel is rotatably connected to one end of the active floating bracket; the driving motor is installed at one end of the active floating bracket and its motor shaft is connected to the driving wheel; the active caster is rotatably connected to the other end of the active floating bracket; the driven wheel floating mechanism comprises: two driven casters, a driven floating bracket and a driven rotating shaft; a driven bracket is arranged in the middle of one end of the chassis; the middle of the driven floating bracket is rotatably connected to the driven bracket through a driven rotating shaft; the two driven casters are rotatably connected to the two ends of the driven bracket respectively; the active caster is located at the other end of the chassis away from the driven caster; the active floating bracket is vertically arranged to the driven floating bracket.

[0005] Furthermore, the two active casters and the two driven casters are distributed in a rectangular shape on the chassis.

[0006] Furthermore, installation bins for installing the active wheel floating mechanism are provided on both sides of the chassis; the height of the bin wall of the installation bin is greater than the maximum height of the end of the active floating bracket tilting up.

[0007] Furthermore, a limit portion is provided on the inner side of the installation bin for limiting the rotation range of the active floating bracket; further, a recess is formed on the wall of the installation bin for one end of the active floating bracket to extend out; the active caster is rotatably installed on one end of the recess extending out of the active floating bracket.

[0008] Furthermore, one end of the active floating bracket on which the active caster is installed is provided with a first abutting plate above the active caster for contacting the mounting component above the chassis.

[0009] Furthermore, the first abutting plate is made of rubber material.

[0010] Furthermore, one end of the chassis is also provided with two support frames for resisting the upper mounting components to ensure the upward and downward tilting range of the driven wheel floating mechanism; the height of the support frame is greater than the maximum tilting height of the driven wheel floating mechanism; the support frame is also formed with a limiting recess for limiting the downward rotation range of the driven floating bracket; the two ends of the driven floating bracket move in the two limiting recesses respectively.

[0011] Furthermore, a second abutment plate for contacting a mounting component above the chassis is installed above the driven casters at both ends of the driven floating bracket where the driven casters are installed.

[0012] Furthermore, the second abutting plate is made of rubber material.

[0013] The utility model is beneficial in that the provided AGV transporter chassis can effectively improve the chassis's adaptability to complex ground surfaces, the overall operation stability is higher, and the chassis is less likely to tip over. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of an AGV transporter chassis involved in the present application;

[0016] Figure 2 yes Figure 1 A schematic diagram of the installation of a driven wheel floating mechanism of an AGV transporter chassis;

[0017] Figure 3 yes Figure 1 A schematic diagram of the installation of a driving wheel floating mechanism of an AGV transport vehicle chassis;

[0018] Figure 4 yes Figure 1 A schematic diagram of a chassis of an AGV transporter chassis;

[0019] AGV transporter chassis 10, chassis 11, active bracket 111, driven bracket 112, installation bin 113, limiting portion 114, recess 115, support frame 116, limiting recess 1161, active wheel floating mechanism 12, driving wheel 121, driving motor 122, active rotating shaft 123, active floating bracket 124, active caster 125, first contact plate 126, driven wheel floating mechanism 13, driven caster 131, driven floating bracket 132, driven rotating shaft 133, second contact plate 134. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0023] like Figures 1 to 4 As shown, an AGV transporter chassis 10 of the present application includes: a chassis 11, driving wheel floating mechanisms 12 are symmetrically arranged on both sides of the chassis 11 for driving the chassis 11 to operate, and a driven wheel floating mechanism 13 is arranged at one end of the chassis 11 for assisting in driving the chassis 11 to operate. Specifically:

[0024] The active wheel floating mechanism 12 includes: a driving wheel 121, a driving motor 122, an active shaft 123, an active floating bracket 124 and an active caster 125, and active brackets 111 are provided on both sides of the chassis 11. During installation, the active floating bracket 124 is rotationally connected to the active bracket 111 through the active shaft 123, the driving wheel 121 is rotationally connected to one end of the active floating bracket 124, the driving motor 122 is also installed at one end of the active floating bracket 124, and the motor shaft of the driving motor 122 is connected to the driving wheel 121, and the active caster 125 is rotationally connected to the other end of the active floating bracket 124. In this way, the driving motor 122 and the driving wheel 121 are installed as a driving module at one end of the active floating bracket 124, and the active caster 125 is rotatably connected to the other end of the active floating bracket 124. When the active caster 125 and the driving wheel 121 are driving, the structure they constitute is also a floating driving structure. The driving wheel 121 itself and the active caster 125 both have floating grip that can adapt to complex ground. When driving on complex ground, they can provide effective floating support for the chassis 11.

[0025] The driven wheel floating mechanism 13 includes: two driven casters 131, a driven floating bracket 132 and a driven rotating shaft 133. A driven bracket 112 is provided in the middle of one end of the chassis 11. During installation, the middle of the driven floating bracket 132 is rotationally connected to the driven bracket 112 through the driven rotating shaft 133, and the two driven casters 131 are rotationally connected to the two ends of the driven bracket 112. In this way, the driven wheel floating mechanism 13 can effectively float and support the chassis 11 from one end of the chassis 11 when the chassis 11 is traveling on a complex ground through the floating structure of the two driven casters 131, thereby improving the grip of the chassis 11 during driving, and further improving the running stability of the chassis 11.

[0026] Based on the above-mentioned active wheel floating mechanism 12 and driven wheel floating mechanism 13, the active caster 125 is located at the other end of the chassis 11 away from the driven caster 131, the active floating bracket 124 and the driven floating bracket 132 are vertically arranged, and the two active casters 125 and the two driven casters 131 are rectangularly distributed on the chassis 11, thereby realizing the symmetrical arrangement of the floating support structure. In this way, when the chassis 11 is running, the active caster 125, the driving wheel 121 and the driven caster 131 mutually assist each other in floating rolling support of the chassis 11 along the front, middle and rear directions of the chassis 11, which can effectively improve the overall adaptability of the chassis 11 to complex ground, has strong grip, and has higher overall operation stability, and is less likely to cause the chassis 11 to tip over. Furthermore, the active caster 125, the driving wheel 121 and the driven caster 131 assist each other in providing floating rolling support for the chassis 11 along the front, middle and rear directions of the chassis 11, which can effectively improve the smoothness of the driving operation of the chassis 11 and relatively reduce energy consumption.

[0027] As a specific implementation, mounting chambers 113 are provided on both sides of the chassis 11 for mounting the active wheel floating mechanism 12, and the chamber wall height of the mounting chamber 113 is greater than the maximum height of the end of the active floating bracket 124 to ensure that the active floating bracket 124 is not blocked in the floating space, thereby improving the reliability of the floating grip structure. A limiter 114 is provided inside the mounting chamber 113 to limit the downward rotation range of the active floating bracket 124.

[0028] Furthermore, a recess 115 is formed on the wall of the mounting bin 113 for one end of the active floating bracket 124 to extend out, and the active caster 125 is rotatably mounted on the end of the recess 115 extending out of the active floating bracket 124. In this way, the driving wheel 121 and the active caster 125 are installed separately. When the driving wheel 121 and the active caster 125 are running, mutual interference caused by the airflow generated by their respective rotations can be avoided, thereby reducing operating energy consumption.

[0029] As a specific implementation, one end of the active floating bracket 124 on which the active caster 125 is mounted is provided with a first contact plate 126 above the active caster 125, through which the mounting component above the chassis 11 can be contacted. The first contact plate 126 is made of rubber material, and the flexible contact can protect the structure of the active wheel floating mechanism 12.

[0030] As a specific implementation, a support frame 116 is further provided at one end of the chassis 11, and the support frame 116 can contact the mounting component above, and the height of the support frame 116 is greater than the maximum height of the driven wheel floating mechanism 13, thereby ensuring the upward and downward tilting range of the driven wheel floating mechanism 13. The support frame 116 also forms a limiting recess 1161, which can limit the downward rotation range of the driven floating bracket 132, and the two ends of the driven floating bracket 132 move in the two limiting recesses 1161 respectively.

[0031] As a specific implementation, the two ends of the driven floating bracket 132 where the driven caster 131 is installed are provided with a second contact plate 134 above the driven caster 131, and the second contact plate 134 can contact the installation component above the chassis 11. The second contact plate 134 is made of rubber material, and the flexible contact can protect the structure of the driven wheel floating mechanism 13.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. An AGV transporter chassis, comprising: Chassis; characterized in that, Active wheel floating mechanisms for driving the chassis to operate are symmetrically arranged on both sides of the chassis; One end of the chassis is provided with a driven wheel floating mechanism for assisting in driving the chassis to operate; The driving wheel floating mechanism comprises: a driving wheel, a driving motor, a driving shaft, an active floating bracket and an active caster; Active brackets are provided on both sides of the chassis; The active floating support is rotationally connected to the active support via an active rotating shaft; The driving wheel is rotatably connected to one end of the active floating support; The driving motor is mounted on one end of the active floating support and its motor shaft is connected to the driving wheel; The active caster is rotatably connected to the other end of the active floating bracket; The driven wheel floating mechanism comprises: two driven casters, a driven floating bracket and a driven rotating shaft; A driven bracket is provided in the middle of one end of the chassis; The middle portion of the driven floating bracket is rotationally connected to the driven bracket via the driven rotating shaft; The two driven casters are rotatably connected to the two ends of the driven bracket respectively; The active caster is located at the other end of the chassis away from the driven caster; The active floating support and the passive floating support are vertically arranged.

2. The AGV transporter chassis according to claim 1, characterized in that: The two active casters and the two driven casters are distributed in a rectangular shape on the chassis.

3. The AGV transporter chassis according to claim 1, characterized in that: Both sides of the chassis are provided with installation compartments for installing the driving wheel floating mechanism; The height of the wall of the installation bin is greater than the maximum height of the end of the active floating bracket tilting up.

4. The AGV transporter chassis according to claim 3, characterized in that: A limiting portion for limiting the rotation range of the active floating bracket is provided on the inner side of the installation bin.

5. The AGV transporter chassis according to claim 3, characterized in that: The wall of the installation bin is formed with a recess for allowing one end of the active floating bracket to extend out; The active caster is rotatably mounted on one end of the active floating bracket that extends out of the recess.

6. The AGV transporter chassis according to claim 1, characterized in that: One end of the active floating bracket on which the active caster is mounted is provided with a first abutting plate above the active caster for contacting a mounting component above the chassis.

7. The AGV transporter chassis according to claim 6, characterized in that: The first contact plate is made of rubber material.

8. The AGV transporter chassis according to claim 1, characterized in that: One end of the chassis is also provided with two support frames for contacting the mounting components above to ensure the upward and downward tilting range of the driven wheel floating mechanism; The height of the support frame is greater than the maximum tilting height of the driven wheel floating mechanism; The support frame is also formed with a limiting recess for limiting the downward rotation range of the driven floating support; The two ends of the driven floating bracket move in the two limiting recesses respectively.

9. The AGV transport vehicle chassis according to claim 1, characterized in that: The two ends of the driven floating bracket where the driven casters are mounted are provided with second abutment plates above the driven casters for contacting mounting components above the chassis.

10. The AGV transport vehicle chassis according to claim 9, characterized in that: The second contact plate is made of rubber material.

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