Connecting rod suspension chassis for AGV (Automatic Guided Vehicle)

Abstract

The utility model relates to a connecting rod suspension chassis for an AGV (Automatic Guided Vehicle). The connecting rod suspension chassis comprises a chassis frame body, a driving assembly, a suspension assembly and a bearing frame, the driving assembly comprises a left driving assembly, a right driving assembly and a driven assembly, and the driven assembly is arranged on the chassis frame body; the suspension assembly comprises a left suspension and a right suspension; the left suspension comprises a first left connecting rod and a second left connecting rod, one end of the first left connecting rod is rotationally arranged on the upper end face of the chassis frame, the other end of the first left connecting rod is rotationally connected with one end of the second left connecting rod, and the other end of the second left connecting rod abuts against the upper end face of the left driving assembly. The right suspension comprises a first right connecting rod and a second right connecting rod, one end of the first right connecting rod is rotationally arranged on the upper end face of the chassis frame, the other end of the first right connecting rod is rotationally connected with one end of the second right connecting rod, and the other end of the second right connecting rod abuts against the upper end face of the right driving assembly. The left portion of the bearing frame is rotationally connected with the middle of the first left connecting rod, and the right portion of the bearing frame is rotationally and slidably connected with the middle of the first left connecting rod. The transportation stability of the chassis is better.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV vehicles, in particular to a connecting rod suspension chassis for an AGV vehicle. Background Technique

[0002] Transport devices, such as Automated Guided Vehicles (AGV vehicles for short), refer to transport vehicles equipped with automatic navigation devices such as electromagnetic or optical ones, which can travel along the specified navigation path and have safety protection and various transfer functions. AGV vehicles are widely used in warehousing logistics. An AGV vehicle mainly includes a chassis for carrying goods, a driving wheel and a driven wheel installed on the chassis. The driving wheel can move relative to the chassis, while the driven wheel is installed on the chassis. The design of the existing AGV chassis will cause the gravity of the goods to directly act on the chassis entirely, and the acting forces transmitted by the chassis to the driving wheel and the driven wheel are different, resulting in different frictions between the driving wheel and the driven wheel. Seriously, it may lead to insufficient friction between the driving wheel and the ground, resulting in insufficient driving force of the driving wheel. Content of the Utility Model

[0003] The utility model provides a connecting rod suspension chassis for an AGV vehicle, enabling the gravity of the goods to directly act on the driving wheel in the driving component and the driven wheel in the chassis component, making the acting forces on the driving wheel and the driven wheel basically the same, and the heavier the goods, the greater the acting force, ensuring the driving force of the driving wheel and guaranteeing the transportation stability of the chassis.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A connecting rod suspension chassis for an AGV vehicle includes a chassis frame, a driving component, a suspension component, and a carrying frame;

[0006] The above driving component includes a left driving component, a right driving component, and a driven component. The left driving component and the right driving component are respectively vertically slidably arranged on the left and right parts of the chassis frame, and the driven component is arranged on the chassis frame;

[0007] The above suspension component includes a left suspension and a right suspension; the left suspension includes a first left connecting rod and a second left connecting rod. One end of the first left connecting rod is rotatably arranged on the upper end surface of the chassis frame, and the other end is rotatably connected to one end of the second left connecting rod. The other end of the second left connecting rod abuts against the upper end surface of the left driving component; the right suspension includes a first right connecting rod and a second right connecting rod. One end of the first right connecting rod is rotatably arranged on the upper end surface of the chassis frame, and the other end is rotatably connected to one end of the second right connecting rod. The other end of the second right connecting rod abuts against the upper end surface of the right driving component;

[0008] The above-mentioned bearing frame is located above the above-mentioned suspension assembly. The left part of the above-mentioned bearing frame is rotatably connected to the middle part of the above-mentioned first left connecting rod, and the right part of the above-mentioned bearing frame is rotatably and slidably connected to the middle part of the above-mentioned first left connecting rod.

[0009] Preferably, the above-mentioned first left connecting rod includes a left connecting block and a left support seat;

[0010] The left end of the above-mentioned left connecting block is rotatably arranged on the upper end surface of the above-mentioned chassis frame, and the right end is rotatably connected to one end of the above-mentioned second left connecting rod;

[0011] The above-mentioned left support seat is arranged on the upper end surface of the above-mentioned left connecting block and is located in the middle thereof. The above-mentioned left support seat is rotatably and slidably connected to the lower end of the above-mentioned bearing frame.

[0012] Preferably, the above-mentioned second left connecting rod includes a left shaft seat. At least two left protrusions are provided at one end of the above-mentioned left shaft seat away from the above-mentioned left connecting block, and the above-mentioned left protrusions are abutted against the upper end surface of the above-mentioned left drive assembly.

[0013] Preferably, the above-mentioned first right connecting rod includes a right connecting block and a right support seat;

[0014] The right end of the above-mentioned right connecting block is rotatably arranged on the upper end surface of the above-mentioned chassis frame, and the left end is rotatably connected to one end of the above-mentioned second right connecting rod;

[0015] The above-mentioned right support seat is arranged on the upper end surface of the above-mentioned right connecting block and is located in the middle thereof. The above-mentioned right support seat is rotatably and slidably connected to the lower end of the above-mentioned bearing frame.

[0016] Preferably, the above-mentioned second right connecting rod includes a right shaft seat. At least two right protrusions are provided at one end of the above-mentioned right shaft seat away from the above-mentioned right connecting block, and the above-mentioned right protrusions are abutted against the upper end surface of the above-mentioned right drive assembly.

[0017] Preferably, the above-mentioned driven components are provided with at least four groups. At least two groups of the above-mentioned driven components are arranged on the left part of the above-mentioned chassis frame, and at least two groups of the above-mentioned driven components are arranged on the right part of the above-mentioned chassis frame.

[0018] Preferably, the above-mentioned left drive assembly includes a left drive mounting bracket. A left linear guide rail is arranged on the above-mentioned left drive mounting bracket, and a left sliding block matched with the above-mentioned left linear guide rail is arranged on the side wall of the above-mentioned chassis frame;

[0019] The above-mentioned right drive assembly includes a right drive mounting bracket. A right linear guide rail is arranged on the above-mentioned right drive mounting bracket, and a right sliding block matched with the above-mentioned right linear guide rail is arranged on the side wall of the above-mentioned chassis frame.

[0020] Preferably, an installation groove is provided in the middle of the chassis frame body. The installation groove divides the chassis frame body into a left installation cavity and a right installation cavity. The left drive assembly is installed in the left installation cavity, and the right drive assembly is installed in the right installation cavity;

[0021] Both the left linear guide rail and the right linear guide rail are installed on the left and right outer side walls of the installation groove.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] 1. The first left connecting rod and the second left connecting rod form a left suspension. The left suspension connects the left drive assembly, the left part of the chassis frame, and the left part of the bearing frame. The first right connecting rod and the second right connecting rod form a right suspension. The right suspension connects the right drive assembly, the right part of the chassis frame, and the left part of the bearing frame. When the bearing frame carries goods, the gravity of the goods will be distributed in two ways. One way is distributed to the chassis frame through the first left connecting rod and the first right connecting rod, and then acts on the driven wheels in the driven assembly. The other way directly acts on the left drive assembly through the first left connecting rod and the second left connecting rod and directly acts on the right drive assembly through the first right connecting rod and the second right connecting rod, and then acts on the drive wheels in the right drive assembly. Thus, both the driven wheels and the drive wheels can be acted upon by the gravity of the goods, making the force on the drive wheels and the driven wheels basically the same. Therefore, during the process of transporting goods by the chassis, it is possible to avoid the situation where the force difference between the drive wheels and the driven wheels is too large, resulting in unstable transportation, or the situation where the force on the drive wheels is too small, resulting in insufficient driving force of the drive wheels, ensuring the stable transportation of the chassis. Description of the Drawings

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of the overall chassis of the embodiment in the present utility model Figure 1 ;

[0026] Figure 2 Schematic diagram of the overall chassis of the embodiment in the present utility model Figure 2 ;

[0027] Figure 3 Schematic diagram of the connection of the bearing frame, left suspension, right suspension, left drive mounting plate, and right drive mounting plate in the embodiment of the present utility model;

[0028] Figure 4Schematic diagram of the left suspension of the embodiment in the present utility model;

[0029] Figure 5 Schematic diagram of the right suspension of the embodiment in the present utility model.

[0030] Explanation of reference numerals in the drawings:

[0031] 1. Chassis frame; 11. Installation groove; 12. Sliding block; 13. First left fixing ear; 14. First right fixing ear; 2. Left drive assembly; 21. Left drive mounting plate; 22. Left linear guide rail; 3. Right drive assembly; 31. Right drive mounting plate; 32. Right linear guide rail; 4. Driven assembly; 5. Left suspension; 51. Left connecting block; 52. Left support seat; 53. Left axle seat; 54. First left rotating shaft; 55. Second left rotating shaft; 56. Third left rotating shaft; 57. Left protrusion; 6. Right suspension; 61. Right connecting block; 62. Right support seat; 63. Right axle seat; 64. First right rotating shaft; 65. Second right rotating shaft; 66. Third right rotating shaft; 67. Right protrusion; 7. Carrying frame; 71. Second left fixing ear; 72. Second right fixing ear; 73. Sliding hole. Detailed implementation manners

[0032] Next, the technical solutions of the present utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] As shown Figures 1-5 in the figure, an embodiment of the utility model provides a connecting rod suspension chassis for an AGV vehicle, which includes a chassis frame 1, a driving assembly, a suspension assembly and a carrying frame 7. The chassis frame 1 is used to carry the driving assembly, the suspension assembly and the carrying frame 7. The carrying frame 7 is used to carry goods. The suspension assembly is installed between the chassis frame and the carrying frame 7 to connect the chassis frame 1 and the carrying frame 7. Through the cooperation of the above components, the transportation of the chassis is completed.

[0036] Specifically, the driving assembly includes a left driving assembly 2, a right driving assembly 3 and a driven assembly 4. The left driving assembly 2 and the right driving assembly 3 are respectively located in the left and right cavities of the chassis frame 1 and can slide vertically on the chassis frame 1. The driven assembly 4 is installed on the chassis frame 1. Correspondingly, the suspension assembly includes a left suspension 5 and a right suspension 6. The left driving assembly 2 corresponds to the left suspension 5. The left suspension 5 includes a first left connecting rod and a second left connecting rod. One end of the first left connecting rod is rotatably installed on the upper end surface of the chassis frame 1, and the other end is rotatably connected to one end of the second left connecting rod. The other end of the second left connecting rod abuts against the upper end surface of the left driving assembly 2. The right driving assembly 3 corresponds to the right suspension 6. The right suspension 6 includes a first right connecting rod and a second right connecting rod. One end of the first right connecting rod is rotatably installed on the upper end surface of the chassis frame 1, and the other end is rotatably connected to one end of the second right connecting rod. The other end of the second right connecting rod abuts against the upper end surface of the right driving assembly 3. Correspondingly, the left part of the carrying frame 7 is rotatably connected to the middle part of the first left connecting rod, and the right part of the carrying frame 7 is rotatably connected to the middle part of the first left connecting rod. Thus, the carrying frame 7 is connected to the bottom frame through the left suspension 5 and the right suspension 6. Moreover, the right part of the carrying frame 7 is slidably connected to the first left connecting rod, providing freedom of rotation for the connecting rods in the left and right suspensions 6 and ensuring the stable movement of the internal components.

[0037] Specifically, when the chassis encounters complex road surfaces during transportation, the left drive assembly 2 will move up and down. When the left drive assembly 2 moves upward, it will force the second left connecting rod to move upward, and then cause the first left connecting rod to rotate around its rotation point with the chassis frame. Correspondingly, the left end of the bearing frame 7 will also rise. When the left drive assembly 2 moves downward, the gravity of the goods will force the first left connecting rod to rotate, the bearing frame 7 will lower, and the second left connecting rod will move downward, so that the second left connecting rod continuously abuts against the upper end surface of the left drive assembly 2. Thus, when the chassis moves, the gravity of the goods can continuously act on the left drive assembly 2. Similarly, the right drive assembly 3 is the same. When the right drive assembly 3 moves upward, it will force the second right connecting rod to move upward, and then cause the first right connecting rod to rotate around its rotation point with the chassis frame. Correspondingly, the right end of the bearing frame 7 will also rise. When the right drive assembly 3 moves downward, the gravity of the goods will force the first right connecting rod to rotate, the bearing frame 7 will lower, and the second right connecting rod will move downward, so that the second right connecting rod continuously abuts against the upper end surface of the right drive assembly 3. Thus, the gravity of the goods can continuously act on the right drive assembly 3. Of course, the left drive assembly 2 and the right drive assembly 3 can move simultaneously, and the movement modes of the left and right suspensions 6 correspond to the movement modes of the left and right drive assemblies 3.

[0038] In summary, when the bearing frame 7 bears goods, the settings of the left suspension 5 and the right suspension 6 cause the gravity of the goods borne by the bearing frame 7 to be transmitted in two paths. A part of the gravity of the goods will be directly distributed to the chassis frame 1 through the first left connecting rod and the first right connecting rod, and then act on the driven wheels in the driven assembly 4. Another part of the gravity of the goods acts on the drive wheels in the left drive assembly 2 and the right drive assembly 3 through the first left connecting rod, the second left connecting rod, the first right connecting rod, and the second right connecting rod respectively, so that the gravity of the goods on the bearing frame 7 can be evenly distributed to the driven wheels and drive wheels on the chassis frame 1, making the force magnitudes on the drive wheels and the driven wheels basically the same. Thus, during the process of the chassis transporting goods, it is possible to avoid the situation where the force difference between the drive wheels and the driven wheels is too large, resulting in unstable transportation, or the situation where the drive wheels are under too little force, leading to insufficient driving force of the drive wheels, ensuring the stable transportation of the chassis; and because the gravity of the goods can directly act on the drive assembly, the heavier the goods, the greater the force on the drive wheels, the more stable the driving force, and the more stable the chassis transportation.

[0039] Specifically, such as Figure 3 、 4As shown, the first left connecting rod includes a left connecting block 51 and a left support seat 52, and the left connecting block 51 and the left support seat 52 have a certain width and a certain length. At both the front and rear ends of the upper surface of the left end of the chassis frame 1, first left fixing ears 13 are provided. The left end of the left connecting block 51 is arranged between the two first left fixing ears 13 and is rotatably connected through a first left rotating shaft 54. A groove is formed at the other end of the left connecting block 51, and the end of the second left connecting block 51 is arranged in the groove and is rotatably connected to the left connecting block 51 through a second left rotating shaft 55. The left support seat 52 is installed on the upper surface of the left connecting block 51 through bolts and is located in the middle of the left connecting block 51. Correspondingly, second left fixing ears 71 are provided at both the front and rear ends of the left part of the bearing frame 7. The left support seat 52 is located between the two second left fixing ears 71 and is rotatably connected to the two second left fixing ears 71 through a third left rotating shaft 56. Specifically, the second right connecting rod includes a second right connecting block 61, which has a certain width and is arranged along the width direction of the bearing frame 7. Thus, the left connecting block 51, the left support seat 52, the second right connecting block 61, the first left rotating shaft 54, the second left rotating shaft 55, and the third left rotating shaft 56 complete the rotational connection of the entire left suspension 5 with the chassis frame 1 and the bearing frame 7 and the abutment against the upper surface of the left driving assembly 2.

[0040] Specifically, at least two left protrusions 57 are provided at one end of the second left connecting block 51 (the second left connecting rod) away from the first left connecting rod, and the left protrusions 57 abut against the upper surface of the left driving assembly 2. In this embodiment, the left driving assembly 2 includes a left driving mounting plate 21, and a circular mounting hole is formed at the upper end of the left driving mounting plate 21. The two left protrusions 57 are arranged at intervals and both abut against the upper surface of the left driving mounting plate 21. Thus, the two left protrusions 57 will be located on both sides of the axis of the circular mounting hole, making the abutment between the second left connecting block 51 and the left driving mounting plate 21 more stable, that is, the force transmission between the second left connecting rod and the left driving assembly 2 is more stable and more concentrated.

[0041] Specifically, as Figure 3 、 5As shown in the figure, the first right connecting rod includes a right connecting block 61 and a right support seat 62, and the right connecting block 61 and the right support seat 62 have a certain width and a certain length. At the front and rear ends of the upper surface of the right end of the chassis frame 1, first right fixing ears 14 are provided. The right end of the right connecting block 61 is arranged between the two first right fixing ears 14 and is rotationally connected through a first right rotating shaft 64. A groove is formed at the other end of the right connecting block 61, and the end of the second right connecting block 61 is arranged in the groove and is rotationally connected to the right connecting block 61 through a second right rotating shaft 65. The right support seat 62 is installed on the upper surface of the right connecting block 61 through bolts and is located in the middle of the right connecting block 61. Correspondingly, second right fixing ears 72 are provided at the front and rear ends of the right part of the load-bearing frame 7. The right support seat 62 is located between the two second right fixing ears 72 and is rotationally connected to the two second right fixing ears 72 through a third right rotating shaft 66. Moreover, sliding holes 73 arranged in the left-right direction are provided on both of the two second right fixing ears 72. The front and rear parts of the third right rotating shaft 66 are installed on the right support seat 62 through bearings, and the front and rear ends of the third right rotating shaft 66 are respectively slidably arranged in the sliding holes 73 on the two right fixing ears. The arrangement of the sliding holes 73 provides the load-bearing frame 7 with the freedom of left-right movement, thereby ensuring that the movement of the left and right suspensions 6 and the left and right drive assemblies 3 will not be affected. Specifically, the second right connecting rod includes the second right connecting block 61, which has a certain width and is arranged along the width direction of the load-bearing frame 7. Thus, the right connecting block 61, the right support seat 62, the second right connecting block 61, the first right rotating shaft 64, the second right rotating shaft 65, and the third right rotating shaft 66 complete the rotational connection of the entire right suspension 6 with the chassis frame 1 and the load-bearing frame 7 and the abutment against the upper surface of the right drive assembly 3.

[0042] Specifically, at least two right protrusions 67 are provided at one end of the second right connecting block 61 (the second right connecting rod) away from the first right connecting rod, and the right protrusions 67 abut against the upper surface of the right drive assembly 3. In this embodiment, the right drive assembly 3 includes a right drive mounting plate 31, and a circular mounting hole is formed at the upper end of the right drive mounting plate 31. The two right protrusions 67 are arranged at intervals and both abut against the upper surface of the right drive mounting plate 31. Thus, the two right protrusions 67 will be located on both sides of the axis of the circular mounting hole, so that the abutment between the second right connecting block 61 and the right drive mounting plate 31 is more stable, that is, the force transmission between the second right connecting rod and the right drive assembly 3 is more stable and more concentrated.

[0043] Specifically, the driven components 4 are provided with at least four groups. At least two groups of driven components 4 are arranged on the left part of the chassis frame 1 and cooperate with the two driving wheels in the left driving component 2. At least two groups of driven components 4 are arranged on the right part of the chassis frame 1 and cooperate with the two driving wheels in the right driving component 3 to achieve stable transportation of the entire chassis. Specifically, in this embodiment, there are four groups of driven components 4, and the chassis frame 1 is of a rectangular structure. The four groups of driven components 4 are respectively located at the four corners of the chassis frame 1, and both the left driving component 2 and the right driving component 3 are located in the middle. Thus, the two driving wheels in the left driving component 2 form a triangular structure as a whole with the two groups of driven components 4 located in the two corners, providing more stable support. The two driving wheels in the left driving component 2 also form a triangular structure as a whole with the two groups of driven components 4 located in the two corners, providing more stable support. Specifically, the driven component 4 can be a universal wheel.

[0044] In this embodiment, the left driving component 2 has two driving wheels, the right driving component 3 has two driving wheels, and there are four driven components 4, which are respectively located at the four corners of the chassis frame. Thus, there are four driving wheels and four driven wheels. It is also known that the left support seat 52 is located in the middle of the left connecting block 51, dividing the left connecting block 51 into two equal parts, and the left shaft seat 53 moves vertically. The right support seat 62 is located in the middle of the right connecting block 61, dividing the right connecting block 61 into two equal parts, and the right shaft seat 63 moves vertically. Therefore, the downward gravity of the goods on the left can be transmitted to the driven wheels on the left part of the chassis frame in a 1:1 manner through the left suspension 5 and to the driving wheels in the left driving component 2 through the left shaft seat 53. The downward gravity of the goods on the right can be transmitted to the driven wheels on the right part of the chassis frame in a 1:1 manner through the right suspension 6 and to the driving wheels in the right driving component 3 through the right shaft seat 63. Thus, the forces received by the driven wheels and the driving wheels are the same, which not only ensures the driving force of the driving wheels but also ensures the transportation stability of the entire chassis.

[0045] Preferably, an installation groove 11 is provided in the middle of the chassis frame 1 for installing other components. The installation groove 11 is surrounded by two side plates, a bottom plate provided in the middle of the chassis frame 1, and the two side walls of the chassis frame 1. The installation groove 11 divides the chassis frame 1 into a left installation cavity and a right installation cavity. The left driving component 2 is installed in the left installation cavity, and the right driving component 3 is installed in the right installation cavity, and their movements do not interfere with each other and are installed independently. Moreover, in order to achieve the vertical movement of the left driving component 2 and the right driving component 3, a left linear guide rail 22 is connected to the left driving installation plate 21 in the left driving component 2, and a right linear guide rail 32 is connected to the right driving installation plate 31 in the right driving component 3. Left sliding blocks 12 and right sliding blocks 12 are respectively installed on the outer sides of the two side plates surrounding the installation groove 11 through bolts. The left linear guide rail 22 is used in cooperation with the left sliding block 12, and the right linear guide rail 32 is used in cooperation with the right sliding block 12.

[0046] The above embodiments are only the preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A link suspension chassis for AGV, characterized in that: It includes chassis frame, drive assembly, suspension assembly and load-bearing frame; The driving assembly comprises a left driving assembly, a right driving assembly and a driven assembly, wherein the left driving assembly and the right driving assembly are respectively vertically slidably arranged on the left and right parts of the chassis frame, and the driven assembly is arranged on the chassis frame; The suspension assembly includes a left suspension and a right suspension; the left suspension includes a first left link and a second left link, one end of the first left link is rotatably disposed on the upper end surface of the chassis frame, and the other end is rotatably connected to one end of the second left link, and the other end of the second left link abuts against the upper end surface of the left drive assembly; the right suspension includes a first right link and a second right link, one end of the first right link is rotatably disposed on the upper end surface of the chassis frame, and the other end is rotatably connected to one end of the second right link, and the other end of the second right link abuts against the upper end surface of the right drive assembly; The bearing frame is located above the suspension assembly, the left portion of the bearing frame is rotationally connected to the middle portion of the first left connecting rod, and the right portion of the bearing frame is rotationally and slidingly connected to the middle portion of the first left connecting rod.

2. The AGV vehicle connecting rod suspension chassis according to claim 1, characterized in that: The first left connecting rod comprises a left connecting block and a left supporting seat; The left end of the left connecting block is rotatably arranged on the upper end surface of the chassis frame, and the right end is rotatably connected to one end of the second left connecting rod; The left supporting seat is arranged on the upper end surface of the left connecting block and is located in the middle thereof. The left supporting seat is rotatably and slidably connected to the lower end of the supporting frame.

3. The AGV vehicle connecting rod suspension chassis according to claim 2, characterized in that: The second left connecting rod comprises a left shaft seat, and at least two left protrusions are provided at one end of the left shaft seat away from the left connecting block, and the left protrusions are in contact with the upper end surface of the left driving assembly.

4. The AGV vehicle connecting rod suspension chassis according to claim 1, characterized in that: The first right connecting rod includes a right connecting block and a right supporting seat; The right end of the right connecting block is rotatably arranged on the upper end surface of the chassis frame, and the left end is rotatably connected to one end of the second right connecting rod; The right support seat is arranged on the upper end surface of the right connecting block and is located in the middle thereof. The right support seat is rotatably and slidably connected to the lower end of the supporting frame.

5. The AGV vehicle connecting rod suspension chassis according to claim 4, characterized in that: The second right connecting rod comprises a right shaft seat, and at least two right protrusions are arranged at one end of the right shaft seat away from the right connecting block, and the right protrusions abut against the upper end surface of the right driving assembly.

6. The AGV vehicle connecting rod suspension chassis according to claim 1, characterized in that: The driven components are arranged in at least four groups, at least two groups of the driven components are arranged on the left part of the chassis frame, and at least two groups of the driven components are arranged on the right part of the chassis frame.

7. The AGV vehicle connecting rod suspension chassis according to claim 1, characterized in that: The left drive assembly comprises a left drive mounting frame, a left linear guide rail is arranged on the left drive mounting frame, and a left sliding block matching with the left linear guide rail is arranged on the side wall of the chassis frame; The right drive assembly comprises a right drive mounting frame, on which a right linear guide rail is arranged, and on the side wall of the chassis frame a right sliding block matching with the right linear guide rail is arranged.

8. The AGV vehicle link suspension chassis according to claim 7, characterized in that: A mounting groove is provided in the middle of the chassis frame, and the mounting groove divides the chassis frame into a left mounting cavity and a right mounting cavity. The left drive assembly is mounted in the left mounting cavity, and the right drive assembly is mounted in the right mounting cavity. The left linear guide rail and the right linear guide rail are both installed on the left and right outer side walls of the installation groove.

Images