A steering device for an unmanned garbage bin collection vehicle

Abstract

This utility model discloses a steering device for an unmanned garbage collection vehicle, including a frame, a steering motor, a steering column, a left steering wheel, a right steering wheel, a left crossbar, a right crossbar, a left vertical bar, a right vertical bar, and first to seventh bevel gears. The first bevel gear is located at the bottom of the steering column, the second bevel gear is located at the right end of the left crossbar and meshes with the first bevel gear, the third bevel gear is located at the left end of the right crossbar and meshes with the first bevel gear, the fourth and fifth bevel gears are located at the left and right ends of the left and right crossbars respectively, the sixth bevel gear is located at the top of the left vertical bar and meshes with the fourth bevel gear, and the seventh bevel gear is located at the top of the right vertical bar and meshes with the fifth bevel gear. The bottom end of the left vertical bar is connected to the hub shaft of the left steering wheel, and the bottom end of the right vertical bar is connected to the hub shaft of the right steering wheel. This utility model has a simple structure, flexible steering, a large steering angle, and can accurately align with the target.

Description

Technical Field

[0001] This utility model relates to the field of garbage bin collection vehicle technology, and in particular to a steering device for an unmanned garbage bin collection vehicle. Background Technology

[0002] Residential communities typically require the quiet transport of garbage bins filled with trash from within the community to the outside. The full bins are then transported out, weighed, and finally returned to their original locations.

[0003] Currently, the community's garbage bins are all special garbage bins with lids. These garbage bins are usually placed on the ground, and during transportation, they need to be moved by garbage trucks driven by people. This is not only time-consuming and labor-intensive, but also inefficient and wasteful of manpower. Moreover, it is noisy and easily disturbs residents. Therefore, there is a need to develop an unmanned garbage bin collection vehicle that integrates loading and weighing to meet the needs of the community.

[0004] When using driverless garbage collection vehicles to collect and transport garbage bins, the alignment and collection of the garbage bins and the driving and operation of the vehicle are inseparable from the steering mechanism. Therefore, the steering mechanism is a very important component of driverless garbage collection vehicles.

[0005] Unmanned garbage collection vehicles require large-angle, flexible steering to accurately align with targets in order to successfully retrieve and load garbage containers. Conventional vehicle steering systems are not flexible enough, with relatively small steering angles—typically a maximum of 30 to 40 degrees—making them unsuitable for the steering requirements of unmanned garbage collection vehicles. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a steering device for unmanned garbage collection vehicles that is flexible in steering, has a large steering angle, and has a simple structure.

[0007] To solve the above-mentioned technical problems, this utility model adopts a steering device for an unmanned garbage collection vehicle, including a frame, a steering motor, a steering column, a left steering wheel, and a right steering wheel. The steering motor is connected to the frame, and the top of the steering column is connected to the motor shaft of the steering motor. It also includes a first left crossbar, a first right crossbar, a first left vertical bar, a first right vertical bar, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a sixth bevel gear, and a seventh bevel gear. The steering column is located above and between the left and right steering wheels. The first bevel gear is located at the bottom of the steering column. The first left crossbar is horizontally located on the left side of the steering column, and the second bevel gear is located at the right end of the first left crossbar. The second bevel gear and the first bevel gear... The steering column is connected by a gear meshing system. The first right crossbar is horizontally positioned on the right side of the steering column. The third bevel gear is positioned on the left end of the first right crossbar and meshes with the first bevel gear. The fourth and fifth bevel gears are respectively positioned on the left end of the first left crossbar and the right end of the first right crossbar. The first left and first right vertical bars are respectively vertically positioned below the left side of the first left crossbar and below the right side of the first right crossbar. The sixth bevel gear is positioned at the top of the first left vertical bar and meshes with the fourth bevel gear. The seventh bevel gear is positioned at the top of the first right vertical bar and meshes with the fifth bevel gear. The bottom end of the first left vertical bar is connected to the hub shaft of the left steering wheel, and the bottom end of the first right vertical bar is connected to the hub shaft of the right steering wheel.

[0008] In a preferred embodiment of the present invention, the steering device further includes a left steering wheel bracket and a right steering wheel bracket. The bottom end of the first left vertical rod is connected to the left steering wheel hub shaft through the left steering wheel bracket, and the bottom end of the first right vertical rod is connected to the right steering wheel hub shaft through the right steering wheel bracket.

[0009] In a preferred embodiment of this utility model, the left steering wheel bracket includes a left horizontal support plate and a left vertical support plate. The left horizontal support plate is horizontally disposed at the bottom end of the first left vertical rod, and the left vertical support plate is vertically disposed on the right side of the left horizontal support plate. The top end of the left vertical support plate is fixedly connected to the right end of the left horizontal support plate, and the bottom end of the left vertical support plate is fixedly connected to the left steering wheel hub shaft. The right steering wheel bracket includes a right horizontal support plate and a right vertical support plate. The right horizontal support plate is horizontally disposed at the bottom end of the first right vertical rod, and the right vertical support plate is vertically disposed on the left side of the right horizontal support plate. The top end of the right vertical support plate is fixedly connected to the left end of the right horizontal support plate, and the bottom end of the right vertical support plate is fixedly connected to the right steering wheel hub shaft.

[0010] In a preferred embodiment of this utility model, the steering device further includes a second left crossbar, a second right crossbar, a first coupling, and a second coupling. The second left crossbar is horizontally disposed to the left of the first left crossbar. The fourth bevel gear is disposed at the left end of the second left crossbar and meshes with a sixth bevel gear. The right end of the second left crossbar is connected to the left end of the first left crossbar via the first coupling. The second right crossbar is horizontally disposed to the right of the first right crossbar. The fifth bevel gear is disposed at the right end of the second right crossbar and meshes with a seventh bevel gear. The left end of the second right crossbar is connected to the right end of the first right crossbar via the second coupling.

[0011] In a preferred embodiment of this utility model, the steering device further includes a second left vertical rod, a second right vertical rod, a third coupling, and a fourth coupling. The second left vertical rod is disposed below the first left vertical rod, and the top end of the second left vertical rod is connected to the bottom end of the first left vertical rod through the third coupling. The bottom end of the second left vertical rod is connected to the hub shaft of the left steering wheel. The second right vertical rod is disposed below the first right vertical rod, and the top end of the second right vertical rod is connected to the bottom end of the first right vertical rod through the fourth coupling. The bottom end of the second right vertical rod is connected to the hub shaft of the right steering wheel.

[0012] In a preferred embodiment of the present invention, the steering device further includes a left rolling bearing and a right rolling bearing. The left rolling bearing is sleeved on the first left vertical rod, and the outer ring of the left rolling bearing is fixedly connected to the vehicle frame. The right rolling bearing is sleeved on the first right vertical rod, and the outer ring of the right rolling bearing is fixedly connected to the vehicle frame.

[0013] In a preferred embodiment of the present invention, the steering device further includes a first universal coupling and a second universal coupling. The top end of the steering column is connected to the motor shaft of the steering motor through the first universal coupling, and the bottom end of the steering column is connected to the first bevel gear through the second universal coupling.

[0014] In a preferred embodiment of the present invention, the steering device further includes a positioning mechanism that defines the position of each bevel gear.

[0015] In a preferred embodiment of this utility model, the positioning mechanism includes a first positioning shell, a second positioning shell, a third positioning shell, a fourth positioning shell, a fifth positioning shell, a sixth positioning shell, a seventh positioning shell, and a fixing frame. The first positioning shell is disposed at the lower part of the steering column and is rotatably connected to the steering column. The second positioning shell is disposed at the right side of the first left crossbar and is rotatably connected to the first left crossbar. The third positioning shell is disposed at the left side of the first right crossbar and is rotatably connected to the first right crossbar. The first, second, and third positioning shells are fixedly connected to each other to form a triangular structure. The fourth positioning shell is disposed at the lower part of the steering column. The first left horizontal bar is rotatably connected to the left side of the first left horizontal bar. The fifth positioning shell is located on the right side of the first right horizontal bar and is rotatably connected to the first right horizontal bar. The sixth positioning shell is located on the upper part of the first left vertical bar and is rotatably connected to the first left vertical bar. The seventh positioning shell is located on the upper part of the first right vertical bar and is rotatably connected to the first right vertical bar. The fourth and sixth positioning shells are fixedly connected to each other to form an inverted L-shaped structure. The fifth and seventh positioning shells are fixedly connected to each other to form an L-shaped structure. The left, middle, and right parts of the fixing frame are respectively fixedly connected to the triangular structure, the inverted L-shaped structure, and the L-shaped structure.

[0016] By adopting the above structure, this utility model has the following beneficial effects: This utility model relates to a steering device for an unmanned garbage collection vehicle, comprising a frame, a steering motor, a steering column, a left steering wheel, and a right steering wheel. The steering motor is connected to the frame, and the top of the steering column is connected to the motor shaft of the steering motor. It also includes a first left crossbar, a first right crossbar, a first left vertical bar, a first right vertical bar, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a sixth bevel gear, and a seventh bevel gear. The steering column is positioned above and between the left and right steering wheels. The first bevel gear is located at the bottom of the steering column. The first left crossbar is horizontally positioned on the left side of the steering column, and the second bevel gear is located at the right end of the first left crossbar, meshing with the first bevel gear. The first right crossbar is horizontally positioned on the right side of the steering column. The third bevel gear is positioned at the left end of the first right crossbar and meshes with the first bevel gear. The fourth and fifth bevel gears are respectively positioned at the left and right ends of the first left and first right crossbars. The first left and first right vertical bars are respectively vertically positioned below the left and right sides of the first left and first right crossbars. The sixth bevel gear is positioned at the top of the first left vertical bar and meshes with the fourth bevel gear. The seventh bevel gear is positioned at the top of the first right vertical bar and meshes with the fifth bevel gear. The bottom end of the first left vertical bar is connected to the hub shaft of the left steering wheel, and the bottom end of the first right vertical bar is connected to the hub shaft of the right steering wheel. This invention achieves large-angle flexible rotation of the steering wheel through the meshing connection and rotation direction conversion of the bevel gears. This invention has a simple structure, flexible steering, and a large steering angle, ensuring that the garbage collection vehicle can accurately align with the target, fully meeting the steering requirements of unmanned garbage collection vehicles.

[0017] This utility model's steering device further includes a left steering wheel bracket and a right steering wheel bracket. The bottom end of the first left vertical rod is connected to the left steering wheel hub shaft via the left steering wheel bracket, and the bottom end of the first right vertical rod is connected to the right steering wheel hub shaft via the right steering wheel bracket. This structure makes the connection with the steering wheel convenient and the support reliable.

[0018] The left steering wheel bracket of this utility model includes a left horizontal support plate and a left vertical support plate. The left horizontal support plate is horizontally disposed at the bottom end of the first left vertical rod, and the left vertical support plate is vertically disposed on the right side of the left horizontal support plate. The top end of the left vertical support plate is fixedly connected to the right end of the left horizontal support plate, and the bottom end of the left vertical support plate is fixedly connected to the left steering wheel hub shaft. The right steering wheel bracket includes a right horizontal support plate and a right vertical support plate. The right horizontal support plate is horizontally disposed at the bottom end of the first right vertical rod, and the right vertical support plate is vertically disposed on the left side of the right horizontal support plate. The top end of the right vertical support plate is fixedly connected to the left end of the right horizontal support plate, and the bottom end of the right vertical support plate is fixedly connected to the right steering wheel hub shaft. Thus, this simple structure achieves convenient connection and reliable support.

[0019] This utility model's steering device further includes a second left crossbar, a second right crossbar, a first coupling, and a second coupling. The second left crossbar is horizontally positioned to the left of the first left crossbar. The fourth bevel gear is positioned at the left end of the second left crossbar and meshes with a sixth bevel gear. The right end of the second left crossbar is connected to the left end of the first left crossbar via the first coupling. The second right crossbar is horizontally positioned to the right of the first right crossbar. The fifth bevel gear is positioned at the right end of the second right crossbar and meshes with a seventh bevel gear. The left end of the second right crossbar is connected to the right end of the first right crossbar via the second coupling. This design facilitates the installation and maintenance of the second, third, fourth, and fifth bevel gears and the left and right crossbars, while also providing a buffering effect.

[0020] This utility model's steering device further includes a second left vertical rod, a second right vertical rod, a third coupling, and a fourth coupling. The second left vertical rod is positioned below the first left vertical rod, and its top end is connected to the bottom end of the first left vertical rod via the third coupling. The bottom end of the second left vertical rod is connected to the hub shaft of the left steering wheel. The second right vertical rod is positioned below the first right vertical rod, and its top end is connected to the bottom end of the first right vertical rod via the fourth coupling. The bottom end of the second right vertical rod is connected to the hub shaft of the right steering wheel. This structure, employing the third and fourth couplings, facilitates the installation and maintenance of the sixth and seventh bevel gears and the left and right vertical rods, while also providing a buffering effect.

[0021] This utility model's steering device further includes a left rolling bearing and a right rolling bearing. The left rolling bearing is sleeved on the first left vertical rod, and its outer ring is fixedly connected to the vehicle frame. The right rolling bearing is sleeved on the first right vertical rod, and its outer ring is fixedly connected to the vehicle frame. This ensures a stable and reliable connection between the left and right vertical rods, resulting in smoother rotation.

[0022] This utility model's steering device further includes a first universal coupling and a second universal coupling. The top end of the steering column is connected to the steering motor shaft via the first universal coupling, and the bottom end of the steering column is connected to the first bevel gear via the second universal coupling. This facilitates the installation and maintenance of the first bevel gear and the steering column, and allows the steering column to be adjusted within a certain angle range.

[0023] The steering device of this invention also includes a positioning mechanism that defines the position of each bevel gear. This facilitates the positioning and connection of each bevel gear.

[0024] The positioning mechanism of this utility model includes a first positioning shell, a second positioning shell, a third positioning shell, a fourth positioning shell, a fifth positioning shell, a sixth positioning shell, a seventh positioning shell, and a fixing frame. The first positioning shell is disposed at the lower part of the steering column and is rotatably connected to the steering column. The second positioning shell is disposed at the right side of the first left crossbar and is rotatably connected to the first left crossbar. The third positioning shell is disposed at the left side of the first right crossbar and is rotatably connected to the first right crossbar. The first, second, and third positioning shells are fixedly connected to each other to form a triangular structure. The fourth positioning shell is disposed at the left side of the first left crossbar. The fourth and sixth positioning shells are fixedly connected to each other to form an inverted L-shaped structure, and the fifth and seventh positioning shells are fixedly connected to each other to form an L-shaped structure. The left, middle, and right parts of the fixing frame are respectively fixedly connected to the triangular structure, the inverted L-shaped structure, and the L-shaped structure. This structure is simple, practical, stable, and secure, ensuring accurate positioning of each bevel gear.

[0025] This utility model has a simple structure, is easy to implement, simple to install and operate, and has low manufacturing cost. Attached Figure Description

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a three-dimensional schematic diagram of a steering device for an unmanned garbage collection vehicle according to the present invention.

[0028] Figure 2 This is a three-dimensional schematic diagram of the structure of the steering part of this utility model.

[0029] Figure 3 This is a three-dimensional schematic diagram of the structure of the steering transmission part of this utility model.

[0030] Figure 4 This is a three-dimensional schematic diagram of the positioning mechanism of this utility model. Detailed Implementation

[0031] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The diagram illustrates a steering device for an unmanned garbage collection vehicle, comprising a frame 1, a steering motor 2, a steering column 3, a left steering wheel 4, and a right steering wheel 5. The steering motor 2 is connected to the frame 1, and the top end of the steering column 3 is connected to the motor shaft of the steering motor 2. The device also includes a first left crossbar 6, a first right crossbar 7, a first left vertical bar 8, a first right vertical bar 9, a first bevel gear 10, a second bevel gear 11, a third bevel gear 12, a fourth bevel gear 13, a fifth bevel gear 14, a sixth bevel gear 15, and a seventh bevel gear 16. The steering column 3 is positioned above and between the left steering wheel 4 and the right steering wheel 5. The first bevel gear 10 is located at the bottom end of the steering column 3. The first left crossbar 6 is horizontally positioned to the left of the steering column 3, and the second bevel gear 11 is located at the right end of the first left crossbar 6, meshing with the first bevel gear 10. The first right crossbar 7 is horizontally disposed on the right side of the steering column 3. The third bevel gear 12 is disposed on the left end of the first right crossbar 7 and meshes with the first bevel gear 10. The fourth bevel gear 13 and the fifth bevel gear 14 are disposed on the left end of the first left crossbar 6 and the right end of the first right crossbar 7, respectively. The first left vertical bar 8 and the first right vertical bar 9 are vertically disposed on the lower left side of the first left crossbar 6 and the lower right side of the first right crossbar 7, respectively. The sixth bevel gear 15 is disposed at the top of the first left vertical bar 8 and meshes with the fourth bevel gear 13. The seventh bevel gear 16 is disposed at the top of the first right vertical bar 9 and meshes with the fifth bevel gear 14. The bottom end of the first left vertical bar 8 is connected to the hub shaft of the left steering wheel 4, and the bottom end of the first right vertical bar 9 is connected to the hub shaft of the right steering wheel 5.

[0032] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the steering device also includes a left steering wheel bracket 17 and a right steering wheel bracket 18. The bottom end of the first left vertical rod 8 is connected to the hub shaft of the left steering wheel 4 through the left steering wheel bracket 17, and the bottom end of the first right vertical rod 9 is connected to the hub shaft of the right steering wheel 5 through the right steering wheel bracket 18.

[0033] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2and Figure 3 As shown, the left steering wheel bracket 17 includes a left horizontal support plate 17-1 and a left vertical support plate 17-2. The left horizontal support plate 17-1 is horizontally disposed at the bottom end of the first left vertical rod 8, and the left vertical support plate 17-2 is vertically disposed on the right side of the left horizontal support plate 17-1. The top end of the left vertical support plate 17-2 is fixedly connected to the right end of the left horizontal support plate 17-1, and the bottom end of the left vertical support plate 17-2 is fixedly connected to the hub axle of the left steering wheel 4. The right steering wheel bracket 18 includes a right horizontal support plate 18-1 and a right vertical support plate 18-2. The right horizontal support plate 18-1 is horizontally disposed at the bottom end of the first right vertical rod 9, and the right vertical support plate 18-2 is vertically disposed on the left side of the right horizontal support plate 18-1. The top end of the right vertical support plate 18-2 is fixedly connected to the left end of the right horizontal support plate 18-1, and the bottom end of the right vertical support plate 18-2 is fixedly connected to the hub axle of the right steering wheel 5.

[0034] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the steering device also includes a second left crossbar 19, a second right crossbar 20, a first coupling 21, and a second coupling 22. The second left crossbar 19 is horizontally disposed to the left of the first left crossbar 6. The fourth bevel gear 13 is disposed at the left end of the second left crossbar 19 and is meshed with the sixth bevel gear 15. The right end of the second left crossbar 19 is connected to the left end of the first left crossbar 6 through the first coupling 21. The second right crossbar 20 is horizontally disposed to the right of the first right crossbar 7. The fifth bevel gear 14 is disposed at the right end of the second right crossbar 20 and is meshed with the seventh bevel gear 16. The left end of the second right crossbar 20 is connected to the right end of the first right crossbar 7 through the second coupling 22.

[0035] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the steering device also includes a second left vertical rod 23, a second right vertical rod 24, a third coupling 25, and a fourth coupling 26. The second left vertical rod 23 is located below the first left vertical rod 8. The top end of the second left vertical rod 8 is connected to the bottom end of the first left vertical rod 8 through the third coupling 25. The bottom end of the second left vertical rod 23 is connected to the hub axle of the left steering wheel 4. The second right vertical rod 24 is located below the first right vertical rod 9. The top end of the second right vertical rod 24 is connected to the bottom end of the first right vertical rod 9 through the fourth coupling 26. The bottom end of the second right vertical rod 24 is connected to the hub axle of the right steering wheel 5.

[0036] As a preferred embodiment of this utility model, such as Figure 1, Figure 2 and Figure 3 As shown, the steering device also includes a left rolling bearing 27 and a right rolling bearing 28. The left rolling bearing 27 is sleeved on the first left vertical rod 8, and the outer ring of the left rolling bearing 27 is fixedly connected to the frame 1. The right rolling bearing 28 is sleeved on the first right vertical rod 9, and the outer ring of the right rolling bearing 28 is fixedly connected to the frame 1.

[0037] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the steering device also includes a first universal coupling 29 and a second universal coupling 30. The top end of the steering column 3 is connected to the motor shaft of the steering motor 2 through the first universal coupling 29, and the bottom end of the steering column 3 is connected to the first bevel gear 10 through the second universal coupling 30.

[0038] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, the steering device also includes a positioning mechanism 31 that defines the position of each bevel gear.

[0039] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 4As shown, the positioning mechanism 31 includes a first positioning shell 31-1, a second positioning shell 31-2, a third positioning shell 31-3, a fourth positioning shell 31-4, a fifth positioning shell 31-5, a sixth positioning shell 31-6, a seventh positioning shell 31-7, and a fixing frame 31-8. The first positioning shell 31-1 is disposed at the lower part of the steering column 3 and is rotatably connected to the steering column 3. The second positioning shell 31-2 is disposed at the right side of the first left crossbar 6 and is rotatably connected to the first left crossbar 6. The third positioning shell 31-3 is disposed at the left side of the first right crossbar 7 and is rotatably connected to the first right crossbar 7. The first positioning shell 31-1, the second positioning shell 31-2, and the third positioning shell 31-3 are fixedly connected to each other to form a triangular structure. The fourth positioning shell 31-4... 4 is located on the left side of the first left horizontal bar 6 and is rotatably connected to the first left horizontal bar 6. The fifth positioning shell 31-5 is located on the right side of the first right horizontal bar 7 and is rotatably connected to the first right horizontal bar 7. The sixth positioning shell 31-6 is located on the upper part of the first left vertical bar 8 and is rotatably connected to the first left vertical bar 8. The seventh positioning shell 31-7 is located on the upper part of the first right vertical bar 9 and is rotatably connected to the first right vertical bar 9. The fourth positioning shell 31-4 and the sixth positioning shell 31-6 are fixedly connected to each other to form an inverted L-shaped structure. The fifth positioning shell 31-5 and the seventh positioning shell 31-7 are fixedly connected to each other to form an L-shaped structure. The left, middle and right parts of the fixing frame 31-8 are fixedly connected to the triangular structure, the inverted L-shaped structure and the L-shaped structure, respectively.

[0040] The first coupling 21, the second coupling 22, the third coupling 25 and the fourth coupling 26 of this utility model can be commercially available plum blossom couplings, star couplings or pin couplings, so that they can play a role in buffering, shock absorption and easy maintenance in the steering device.

[0041] In practical applications, the left steering wheel 4 and the right steering wheel 5 of this utility model use two sets of hub motors to form the vehicle power system.

[0042] When this utility model is in operation, the steering motor 2 rotates the steering column 3, which drives the first bevel gear 10 to rotate. Since the first bevel gear 10 is meshed with the second bevel gear 11 and the third bevel gear 12 respectively, the first bevel gear 10 drives the second bevel gear 11 and the third bevel gear 12 to rotate synchronously, and causes the first left crossbar 6 and the first right crossbar 7 to drive the fourth bevel gear 13 and the fifth bevel gear 14 to rotate respectively. Since the fourth bevel gear 13 and the fifth bevel gear 14 are meshed with the sixth bevel gear 15 and the seventh bevel gear 16 respectively, the sixth bevel gear 15 and the seventh bevel gear 16 also drive the first left vertical bar 8 and the first right vertical bar 9 to rotate respectively. The first left vertical bar 8 and the first right vertical bar 9 then synchronously drive the left steering wheel bracket 17 and the right steering wheel bracket 18 to drive the left steering wheel 4 and the right steering wheel 5 to turn.

[0043] After testing, this utility model can achieve precise 360-degree turning on the spot and accurately control the vehicle to align with the garbage bin loading point, enabling the unmanned garbage bin collection vehicle to accurately load the garbage bins.

[0044] This utility model adopts three sets of two-stage bevel gears, which makes the steering flexible and the steering angle large, fully meeting the usage requirements of unmanned garbage collection vehicles. Moreover, the structure is simple and has achieved good practical results.

Claims

1. A steering device for an unmanned garbage collection vehicle, comprising a frame (1), a steering motor (2), a steering column (3), a left steering wheel (4), and a right steering wheel (5), wherein the steering motor (2) is connected to the frame (1), and the top end of the steering column (3) is connected to the motor shaft of the steering motor (2), characterized in that: It also includes a first left crossbar (6), a first right crossbar (7), a first left vertical bar (8), a first right vertical bar (9), a first bevel gear (10), a second bevel gear (11), a third bevel gear (12), a fourth bevel gear (13), a fifth bevel gear (14), a sixth bevel gear (15), and a seventh bevel gear (16). The steering column (3) is located above the middle of the left steering wheel (4) and the right steering wheel (5). The first bevel gear (10) is located at the bottom of the steering column (3). The first left crossbar (6) is horizontally located on the left side of the steering column (3). The second bevel gear (11) is located at the right end of the first left crossbar (6) and meshes with the first bevel gear (10). The first right crossbar (7) is horizontally located on the right side of the steering column (3). The third bevel gear (12) is located on the first right crossbar (6). 7) At the left end, the third bevel gear (12) meshes with the first bevel gear (10). The fourth bevel gear (13) and the fifth bevel gear (14) are respectively located at the left end of the first left crossbar (6) and the right end of the first right crossbar (7). The first left vertical bar (8) and the first right vertical bar (9) are respectively vertically located below the left side of the first left crossbar (6) and below the right side of the first right crossbar (7). The sixth bevel gear (15) is located at the top of the first left vertical bar (8). The sixth bevel gear (15) meshes with the fourth bevel gear (13). The seventh bevel gear (16) is located at the top of the first right vertical bar (9). The seventh bevel gear (16) meshes with the fifth bevel gear (14). The bottom end of the first left vertical bar (8) is connected to the hub shaft of the left steering wheel (4). The bottom end of the first right vertical bar (9) is connected to the hub shaft of the right steering wheel (5).

2. The steering device for an unmanned garbage collection vehicle according to claim 1, characterized in that: The steering device also includes a left steering wheel bracket (17) and a right steering wheel bracket (18). The bottom end of the first left vertical rod (8) is connected to the hub shaft of the left steering wheel (4) through the left steering wheel bracket (17), and the bottom end of the first right vertical rod (9) is connected to the hub shaft of the right steering wheel (5) through the right steering wheel bracket (18).

3. The steering device for an unmanned garbage collection vehicle according to claim 2, characterized in that: The left steering wheel bracket (17) includes a left horizontal support plate (17-1) and a left vertical support plate (17-2). The left horizontal support plate (17-1) is horizontally arranged at the bottom end of the first left vertical rod (8), and the left vertical support plate (17-2) is vertically arranged on the right side of the left horizontal support plate (17-1). The top end of the left vertical support plate (17-2) is fixedly connected to the right end of the left horizontal support plate (17-1), and the bottom end of the left vertical support plate (17-2) is fixedly connected to the hub shaft of the left steering wheel (4). The right steering wheel bracket (18) includes a right horizontal support plate (18-1) and a right vertical support plate (18-2). The right horizontal support plate (18-1) is horizontally arranged at the bottom end of the first right vertical rod (9). The right vertical support plate (18-2) is vertically arranged on the left side of the right horizontal support plate (18-1). The top end of the right vertical support plate (18-2) is fixedly connected to the left end of the right horizontal support plate (18-1). The bottom end of the right vertical support plate (18-2) is fixedly connected to the hub shaft of the right steering wheel (5).

4. The steering device for an unmanned garbage collection vehicle according to claim 1, characterized in that: The steering device also includes a second left crossbar (19), a second right crossbar (20), a first coupling (21), and a second coupling (22). The second left crossbar (19) is horizontally arranged to the left of the first left crossbar (6). The fourth bevel gear (13) is arranged at the left end of the second left crossbar (19). The fourth bevel gear (13) is meshed with the sixth bevel gear (15). The right end of the second left crossbar (19) is connected to the left end of the first left crossbar (6) through the first coupling (21). The second right crossbar (20) is horizontally arranged to the right of the first right crossbar (7). The fifth bevel gear (14) is arranged at the right end of the second right crossbar (20). The fifth bevel gear (14) is meshed with the seventh bevel gear (16). The left end of the second right crossbar (20) is connected to the right end of the first right crossbar (7) through the second coupling (22).

5. The steering device for an unmanned garbage collection vehicle according to claim 1, characterized in that: The steering device also includes a second left vertical rod (23), a second right vertical rod (24), a third coupling (25), and a fourth coupling (26). The second left vertical rod (23) is located below the first left vertical rod (8). The top end of the second left vertical rod is connected to the bottom end of the first left vertical rod (8) through the third coupling (25). The bottom end of the second left vertical rod (23) is connected to the hub shaft of the left steering wheel (4). The second right vertical rod (24) is located below the first right vertical rod (9). The top end of the second right vertical rod (24) is connected to the bottom end of the first right vertical rod (9) through the fourth coupling (26). The bottom end of the second right vertical rod (24) is connected to the hub shaft of the right steering wheel (5).

6. The steering device for an unmanned garbage collection vehicle according to claim 1, characterized in that: The steering device also includes a left rolling bearing (27) and a right rolling bearing (28). The left rolling bearing (27) is sleeved on the first left vertical rod (8) and the outer ring of the left rolling bearing (27) is fixedly connected to the frame (1). The right rolling bearing (28) is sleeved on the first right vertical rod (9) and the outer ring of the right rolling bearing (28) is fixedly connected to the frame (1).

7. The steering device for an unmanned garbage collection vehicle according to claim 1, characterized in that: The steering device also includes a first universal coupling (29) and a second universal coupling (30). The top end of the steering column (3) is connected to the motor shaft of the steering motor (2) through the first universal coupling (29), and the bottom end of the steering column (3) is connected to the first bevel gear (10) through the second universal coupling (30).

8. The steering device for an unmanned garbage collection vehicle according to claim 1, characterized in that: The steering device also includes a positioning mechanism (31) that defines the position of each bevel gear.

9. The steering device for an unmanned garbage collection vehicle according to claim 8, characterized in that: The positioning mechanism (31) includes a first positioning shell (31-1), a second positioning shell (31-2), a third positioning shell (31-3), a fourth positioning shell (31-4), a fifth positioning shell (31-5), a sixth positioning shell (31-6), a seventh positioning shell (31-7), and a fixing frame (31-8). The first positioning shell (31-1) is located at the lower part of the steering column (3) and is rotatably connected to the steering column (3). The second positioning shell (31-2) is located at the right side of the first left crossbar (6) and is rotatably connected to the first left crossbar (6). The third positioning shell (31-3) is located at the left side of the first right crossbar (7) and is rotatably connected to the first right crossbar (7). The first positioning shell (31-1), the second positioning shell (31-2), and the third positioning shell (31-3) are fixedly connected to each other to form a triangular structure. The fourth positioning shell (31-4) 31-4) is located on the left side of the first left horizontal bar (6) and is rotatably connected to the first left horizontal bar (6). The fifth positioning shell (31-5) is located on the right side of the first right horizontal bar (7) and is rotatably connected to the first right horizontal bar (7). The sixth positioning shell (31-6) is located on the upper part of the first left vertical bar (8) and is rotatably connected to the first left vertical bar (8). The seventh positioning shell (31-7) is located on the upper part of the first right vertical bar (9) and is rotatably connected to the first right vertical bar (9). The fourth positioning shell (31-4) and the sixth positioning shell (31-6) are fixedly connected to each other to form an inverted L-shaped structure. The fifth positioning shell (31-5) and the seventh positioning shell (31-7) are fixedly connected to each other to form an L-shaped structure. The left, middle and right parts of the fixing frame (31-8) are fixedly connected to the triangular structure, the inverted L-shaped structure and the L-shaped structure, respectively.

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