Unmanned angle control device

Abstract

The utility model discloses an unmanned angle control device, including steering wheel and steering shaft, the middle part fixed connection of steering shaft has a section key shaft, the outside of steering shaft corresponding key shaft position department is provided with the control box fixed in the cockpit, the surface of key shaft has the key sleeve of activity sleeve joint, fixedly installed with transmission gear disc and fixed sleeve on the key sleeve, the position department of control box corresponds transmission gear disc and is installed with the drive motor of drive motor shaft extension end fixed connection has the drive gear of meshing with transmission gear disc. The utility model discloses the structure of steering shaft is improved on the basis of transmission driving type mower, and drive motor, drive gear, transmission gear disc realize electric angle control, and drive push rod contraction can drive drive gear disc to move down and separate with drive gear, at this moment, manual steering can be realized through manual rotation steering wheel, and manual steering and electric steering function are simultaneously provided to adapt to different mowing scene use.

Description

Technical Field

[0001] This utility model relates to the field of unmanned driving technology, specifically to an unmanned driving angle control device. Background Technology

[0002] A lawnmower is a mechanical device used to trim lawns, pastures, and weeds. It is widely used in agriculture, landscaping, lawn maintenance, and ranch management. Its main function is to cut grass evenly and short by rotating blades or rollers, keeping the ground clean or promoting the regeneration of the grass.

[0003] With the continuous development and expansion of agricultural industries, the area requiring mowing is constantly increasing, as is the demand for mowing. Traditional lawnmowers require manual operation, which is extremely uncomfortable in the hot summer months, as operators are exposed to scorching sun and unbearable heat. Furthermore, mowing is impossible on rainy days, severely limiting their effectiveness due to environmental constraints. Therefore, unmanned lawnmowers have emerged on the market, utilizing intelligent technology to achieve driverless operation and solving the problems caused by environmental weather and temperature.

[0004] However, due to limitations in the level of intelligent technology, existing driverless lawnmowers also have significant limitations. They can usually only work smoothly in flat and open areas. When the slope of the area increases, the complexity of the terrain increases, and there are more obstacles, many blind spots will appear, making it impossible to complete the mowing with intelligent driverless technology. In this case, the lawnmower still needs to be driven manually to complete the finishing work. However, the driverless lawnmowers on the market do not have a cab or driver's seat, so lawnmower companies need to purchase additional driver-type lawnmowers, which increases costs.

[0005] Given the complex and varied nature of lawn mowing scenarios, and considering both cost and convenience, our company has designed an unmanned angle control device based on traditional driver-operated lawn mowers. This device allows for switching between unmanned and manual operation, enabling a single machine to function in both modes. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an unmanned driving angle control device to solve the problem that existing driving-type lawnmowers and unmanned lawnmowers cannot simultaneously possess both manual and unmanned driving functions, resulting in numerous inconveniences in actual use.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An unmanned driving angle control device includes a steering wheel and a steering shaft. A spline shaft is fixedly connected to the middle of the steering shaft. A control box fixed in the cockpit is provided on the outside of the steering shaft at the position corresponding to the spline shaft. A spline sleeve is movably sleeved on the surface of the spline shaft. A transmission gear and a fixed sleeve are fixedly installed on the spline sleeve. A drive motor is installed in the control box at the position corresponding to the transmission gear. A drive gear that meshes with the transmission gear is fixedly connected to the shaft extension end of the drive motor. A support frame is fixed inside the control box. The drive motor is mounted on the support frame. A slider that is rotatably connected to the surface of the fixed sleeve and slidably connected to the support frame is mounted on the slider. A Hall sensor is mounted on the slider. The outer wall of the fixed sleeve is provided with a toothed groove corresponding to the Hall sensor. A drive push rod is fixed below the support frame. The piston rod of the drive push rod is fixedly connected to the lower surface of the slider.

[0008] Preferably, the drive gear is located above the transmission gear disk, the fixed sleeve is located below the transmission gear disk, and the drive push rod is installed vertically.

[0009] Preferably, a balance gear is rotatably mounted on the side wall of the control box. The balance gear meshes with the transmission gear disk, and the balance gear and the drive gear are symmetrically arranged on both sides above the transmission gear disk.

[0010] Preferably, a retainer is movably connected to the surface of the spline sleeve, and the balance gear and drive gear are rotatably connected to both sides of the retainer.

[0011] Preferably, the cage is mounted on the spline sleeve via a sliding bearing.

[0012] Preferably, the support frame is provided with a vertical sliding groove, and the slider is slidably connected to the sliding groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention improves the structure of the steering shaft on the basis of a drive-type lawnmower. The drive motor, drive gear, and transmission gear disc enable electric angle control. The retraction of the drive push rod can move the drive gear disc downward and separate it from the drive gear. At this time, manual steering can be achieved by manually turning the steering wheel. It has both manual and electric steering functions to adapt to different lawnmower scenarios, improves practicality, reduces purchase and use costs, and solves the problem that existing drive-type lawnmowers and unmanned lawnmowers cannot simultaneously have both manual and unmanned driving functions, which causes many inconveniences in actual use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the internal structure of the control box of this utility model; Figure 3 This is a partial structural cross-sectional view of the spline shaft of this utility model. Figure 4 This is a schematic diagram of the control principle of this utility model.

[0015] In the diagram: 1. Steering wheel; 2. Steering shaft; 3. Splined shaft; 4. Control box; 5. Splined sleeve; 6. Transmission gear; 7. Fixing sleeve; 701. Gear groove; 8. Drive motor; 9. Drive gear; 10. Support frame; 1001. Slide groove; 11. Slider; 12. Hall sensor; 13. Drive push rod; 14. Balance gear; 15. Cage; 16. Sliding bearing; 17. Controller; 18. Changeover switch. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-4 As shown, this utility model provides a technical solution: an unmanned driving angle control device, including a steering wheel 1 and a steering shaft 2. A spline shaft 3 is fixedly connected to the middle of the steering shaft 2. A control box 4 fixed in the cockpit is provided on the outside of the steering shaft 2 corresponding to the position of the spline shaft 3. A spline sleeve 5 is movably sleeved on the surface of the spline shaft 3. A transmission gear 6 and a fixing sleeve 7 are fixedly installed on the spline sleeve 5. A drive motor 8 is installed in the control box 4 corresponding to the position of the transmission gear 6. A drive gear 9 that meshes with the transmission gear 6 is fixedly connected to the shaft extension end of the drive motor 8. A balance gear 14 is rotatably mounted on the side wall of the control box 4. The balance gear 14 meshes with the transmission gear 6. The balance gear 14 and the drive gear 9 are symmetrically arranged on both sides above the transmission gear 6. A retainer 15 is movably connected to the surface of the spline sleeve 5. The balance gear 14 and the drive gear 9 are rotatably connected on both sides of the retainer 15. The retainer 15 is mounted on the spline sleeve 5 through a sliding bearing 16. A support frame 10 is fixed inside the control box 4. The drive motor 8 is mounted on the support frame 10. A slider 11 is rotatably connected to the surface of the fixed sleeve 7 and is slidably connected to the support frame 10. A vertical slide groove 1001 is provided on the support frame 10. The slider 11 is slidably connected to the slide groove 1001. A Hall sensor 12 is installed on the slider 11. A toothed groove 701 corresponding to the Hall sensor 12 is provided on the outer wall of the fixed sleeve 7. A drive push rod 13 is fixed below the support frame 10. The drive gear 9 is located above the transmission gear plate 6, and the fixed sleeve 7 is located below the transmission gear plate 6. The drive push rod 13 is installed vertically, and the piston rod of the drive push rod 13 is fixedly connected to the lower surface of the slider 11. It also includes a controller 17 and a changeover switch 18. The controller 17 is a microcontroller. The changeover switch 18 and the Hall sensor 12 are both electrically connected to the controller 17. At the same time, the controller 17 is also electrically connected to the drive push rod 13 and the drive motor 8. The drive push rod 13 is an electric push rod, and the drive motor 8 is a servo motor.

[0018] Working principle: When the steering wheel 1 and steering shaft 2 rotate, the fixed sleeve 7 on the surface of the spline sleeve 5, which is connected to it for transmission, also rotates. The rotation of the toothed groove 701 on the surface of the fixed sleeve 7 is detected by the Hall sensor 12, and the angle signal is received by the controller 17 to ensure that the controller 17 continuously receives angle information. The controller 17 switches between manual steering and electric steering by switching the switch 18. When switching to electric steering, the controller 17 pushes the slider 11 upward through the drive push rod 13. The fixed sleeve 7 and spline sleeve 5 drive the transmission gear 6 to move upward and mesh with the drive gear 9. The controller 17 drives the drive gear 9 and transmission gear 6 to rotate through the drive motor 8, thereby driving the steering shaft 2 to rotate and achieve electric angle control. When switching to manual steering, the drive motor 8 stops, the drive push rod 13 retracts, and the slider 11, fixed sleeve 7, spline sleeve 5 and transmission gear 6 move downward. The transmission gear 6 separates from the drive gear 9, and the steering wheel 1 can be manually turned to drive the steering.

[0019] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An unmanned driving angle control device, comprising a steering wheel (1) and a steering shaft (2), characterized in that: A spline shaft (3) is fixedly connected to the middle of the steering shaft (2). A control box (4) fixed in the cockpit is provided on the outside of the steering shaft (2) corresponding to the position of the spline shaft (3). A spline sleeve (5) is movably sleeved on the surface of the spline shaft (3). A transmission gear plate (6) and a fixed sleeve (7) are fixedly installed on the spline sleeve (5). A drive motor (8) is installed in the control box (4) corresponding to the position of the transmission gear plate (6). A drive gear (9) that meshes with the transmission gear plate (6) is fixedly connected to the shaft extension end of the drive motor (8). The control box (4) is fixed with a support frame (10), the drive motor (8) is mounted on the support frame (10), the surface of the fixed sleeve (7) is rotatably connected to a slider (11) that is slidably connected to the support frame (10), a Hall sensor (12) is mounted on the slider (11), the outer wall of the fixed sleeve (7) is provided with a tooth groove (701) corresponding to the Hall sensor (12), a drive push rod (13) is fixed below the support frame (10), and the piston rod of the drive push rod (13) is fixedly connected to the lower surface of the slider (11).

2. The unmanned driving angle control device according to claim 1, characterized in that: The drive gear (9) is located above the transmission gear disk (6), the fixed sleeve (7) is located below the transmission gear disk (6), and the drive push rod (13) is installed vertically.

3. The unmanned driving angle control device according to claim 1, characterized in that: A balance gear (14) is rotatably mounted on the side wall of the control box (4). The balance gear (14) meshes with the transmission gear disk (6), and the balance gear (14) and the drive gear (9) are symmetrically arranged on both sides above the transmission gear disk (6).

4. The unmanned driving angle control device according to claim 3, characterized in that: The spline sleeve (5) is movably connected to a retainer (15), and the balance gear (14) and drive gear (9) are rotatably connected to both sides of the retainer (15).

5. The unmanned driving angle control device according to claim 4, characterized in that: The cage (15) is mounted on the spline sleeve (5) via a sliding bearing (16).

6. The unmanned driving angle control device according to claim 1, characterized in that: The support frame (10) is provided with a vertical slide groove (1001), and the slider (11) is slidably connected to the slide groove (1001).

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