Anti-tilting mower with controllable mowing height

Abstract

The invention belongs to the field of mowing robots, and relates to a mowing height-controllable anti-falling mowing machine, which comprises walking mechanisms symmetrically mounted on two sides of a frame through a frame, and each walking mechanism comprises two Mecanum wheels with direct-current driving motors; the photovoltaic mechanism comprises a top glass plate, a photovoltaic plate supporting column, a flexible photovoltaic plate, a photovoltaic guide rail and a micro guide rail motor; the lifting cutting mechanism is mounted in the rack and extends to the lower part of the rack; comprising a circular chassis, a cutting blade mounted below the circular chassis through a shaft sleeve II with a bearing at the bottom, a wind blocking baffle plate and an arc-shaped baffle plate which are mounted on the lower surface of the circular chassis through a baffle plate fork plate, and a splash-proof baffle plate mounted on the lower surface of the circular chassis through an air duct plate, the exhaust fan is mounted on the lower surface of the circular chassis; the lifting assembly is used for driving the cutting blade to lift; and the driving assembly is used for driving the cutting blade to rotate. According to the invention, grass lodging can be prevented, and the mowing height can be accurately controlled.

Description

Technical Field

[0001] The invention belongs to the field of lawn mowing robots and relates to an anti-falling lawn mower with controllable mowing height. Background Art

[0002] The mowing depth of most lawn mowers on the market today is fixed, or can only be adjusted in fixed gears, and cannot be accurately adjusted according to the actual situation of the site. Although they have excellent cutting functions, they cannot achieve the ideal mowing effect, and most of them have limited battery life and cannot carry out long-term and large-scale work. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention proposes an anti-lodging lawn mower with controllable mowing height, which can prevent grass from lodging and can accurately control the mowing height.

[0004] In order to achieve the above object, the technical solutions specifically adopted by the present invention are as follows:

[0005] A lawn mower with controllable mowing height and an anti-fallover function, comprising a frame and:

[0006] The traveling mechanism is symmetrically mounted on both sides of the frame through the vehicle frame. Each traveling mechanism includes two Mecanum wheels with DC drive motors. The motor seats of the two Mecanum wheels are respectively hinged to the vehicle frame through hinges.

[0007] The photovoltaic mechanism is installed on the top of the rack and includes a top glass panel, photovoltaic panel support, flexible photovoltaic panel, guide rails, and a micro guide rail motor. The micro guide rail motor drives the flexible photovoltaic panel to move along the guide rails, realizing the telescopic function of the flexible photovoltaic panel.

[0008] The lifting and cutting mechanism is installed in the frame and extends to the bottom of the frame, including a circular chassis, a cutting blade installed under the circular chassis through a shaft sleeve II with a bearing at the bottom, a baffle fork plate installed on the lower surface of the circular chassis, a wind baffle, a curved baffle, an air duct plate, a splash baffle, an exhaust fan, a lifting component for driving the cutting blade to lift and lower, and a driving component for driving the cutting blade to rotate.

[0009] Furthermore, the frame is in a 匚 shape, which is connected by a lower cross bar, a vertical bar, and a lower cross bar. The two sides of the motor seat are connected to the upper cross bar of the frame through spring shock-absorbing rods. The upper end of the spring shock-absorbing rod is connected to the upper cross bar through an angle code, and the lower end is connected to the two side walls of the motor seat through bolts.

[0010] Furthermore, the lifting assembly includes a middle-layer support plate installed at the upper end of the circular chassis through a support plate base, two sets of screw jacks installed on the middle-layer support plate, a set of screw jack motors, and a top-layer lifting platform base plate installed at the upper ends of the two sets of screw jacks. Each set of screw jacks includes two screw jacks, and the two screw jacks are connected by a screw connecting long shaft. The set of screw jack motors includes two screw jack motors, and the two screw jack motors are connected by a coupling.

[0011] Furthermore, the driving assembly includes a cutting motor shaft coupler, a cutting motor, a cutting shaft, a sleeve Ⅰ with a bearing at the bottom, and a sleeve Ⅱ with a bearing at the bottom. The cutting motor shaft coupler and the cutting motor are installed at the upper end of the top-layer lifting platform base plate. The sleeve Ⅰ with a bearing at the bottom is installed at the upper end of the middle-layer support plate, and is connected to the top-layer lifting platform base plate through the cutting shaft at the upper end and is connected to the sleeve Ⅱ with a bearing at the bottom at the lower end. The upper end of the cutting shaft penetrates the top-layer lifting platform base plate and is connected to the cutting motor shaft coupler. The sleeve Ⅱ with a bearing at the bottom is connected to the cutting blade through the sleeve Ⅱ with a bearing at the bottom.

[0012] Furthermore, it also includes a storage battery installed at the upper end of the circular chassis. The storage battery is electrically connected to the flexible photovoltaic panel 11 and is used to supply power to the anti-toppling lawn mower.

[0013] Furthermore, the cutting blade is installed at the lower end of the sleeve Ⅱ with a bearing at the bottom through a blade clamp and does not interfere with the baffle fork plate, the wind blocking baffle, the arc baffle, the air duct plate, and the splash-proof baffle.

[0014] Furthermore, the flexible photovoltaic panel adopts a flexible perovskite photovoltaic panel, and the number is three. The three flexible photovoltaic panels are horizontally installed between four photovoltaic panel supports, and each flexible photovoltaic panel is equipped with a guide rail and a micro-guide rail motor.

[0015] The present invention has the following characteristics and beneficial effects:

[0016] 1) The Mecanum wheels are adopted. The four Mecanum wheels are individually controlled by 4 motors and can move in all directions, making the movement more flexible.

[0017] 2) Anti-toppling design: When the lawn mower moves forward, the grass is constrained within the arc area through the baffle fork plate. The suction fan, through the designed air duct, uses strong wind to adsorb the grass to be cut on the arc baffle with small gaps. At the same time, a rubber layer is installed in front of the baffle, which can effectively increase the friction with the grass to prevent the lateral movement of the grass, achieving the anti-toppling effect. Then, the high-speed cutting motor drives the blade to quickly cut the straightened grass.

[0018] 3) Screw rod lifting platform: By remotely inputting commands, the dual-axis motor outputs a short shaft. Through two couplings and then two long shafts to connect four screw jacks, it realizes the synchronous and precise automatic lifting of the 4 screw rods, enabling the entire lifting platform to drive the cutting motor and blade to achieve precise lifting, and achieving the effect of automatic and precise adjustment of the cutting height.

[0019] 4) The top is designed with a solar panel rack, which can be continuously charged by solar energy when the lawn mower is working. When the work is completed, the three flexible perovskite photovoltaic panels can be pushed out by controlling the guide rail with the motor to increase the photovoltaic power generation area and achieve the purpose of charging and energy saving. Brief Description of the Drawings

[0020] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objectives and advantages of the present invention will become more obvious:

[0021] Figure 1 It is a perspective view of a lawn mower with controllable cutting height and anti-toppling of an embodiment of the present invention.

[0022] Figure 2 It is Figure 1 the bottom view of.

[0023] Figure 3 It is a side view of the lifting and cutting mechanism in an embodiment of the present invention.

[0024] Figure 4 It is a perspective view of the lifting and cutting mechanism in an embodiment of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the arc-shaped baffle in an embodiment of the present invention.

[0026] Figure 6 It is a structural schematic diagram of the photovoltaic mechanism in an embodiment of the present invention.

[0027] Figure 7 It is a structural schematic diagram when the flexible photovoltaic panel is unfolded in an embodiment of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the wind blocking baffle, arc-shaped baffle, air duct plate, and anti-splash baffle on the circular chassis in an embodiment of the present invention.

[0029] Figure 9 It is an operation flowchart of an embodiment of the present invention.

[0030] In the figure: 1. Guide rail; 2. Miniature guide rail motor; 3. Frame; 4. Angle code; 5. DC drive motor; 6. Motor base; 7. Mecanum wheel; 8. Hinge; 9. Top glass plate; 10. Photovoltaic panel support; 11. Flexible photovoltaic panel; 12. Frame; 13. Spring shock-absorbing pull rod; 14. Cutting blade; 15. Blade clamp; 16. Rubber layer; 17. Circular chassis; 18. Baffle fork plate; 19. Wind-blocking baffle; 20. Arc-shaped baffle; 21. Air duct plate; 22. Splash-proof baffle; 23. Exhaust fan; 24. Cutting motor shaft coupler; 25. Cutting motor; 26. Cutting shaft; 27. Bottom bearing sleeve Ⅰ; 28. Screw jack; 29. Coupling; 30. Long screw connection shaft; 31. Top layer lifting platform bottom plate; 32. Middle layer support plate; 33. Bottom bearing sleeve Ⅱ; 34. Support plate base; 35. Screw jack motor; 36. Motor output short shaft; 37. Battery. Detailed implementation mode

[0031] The present invention will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0032] As Figures 1-5 shown, the embodiment of the present invention provides a mowing machine with controllable mowing height and anti-overturning function, including a frame 12, and further including:

[0033] A traveling mechanism, symmetrically installed on both sides of the frame through the frame 3. Each group of traveling mechanisms includes two Mecanum wheels 7 with DC drive motors 5. The frame 3 is in a U shape, which is connected by a lower cross bar, a vertical bar, and a lower cross bar. The two Mecanum wheels 7 are symmetrically installed on both sides of the frame 3. The inner side of its motor base 6 is connected to the lower cross bar through a hinge 8. The DC drive motor 5 is installed on the motor base 6, the driving end is connected to the Mecanum wheel 7, and the tail end does not interfere with the frame 3. And both sides of each motor base 6 are respectively connected to the upper cross bar of the frame 3 through spring shock-absorbing pull rods 13. The upper end of the spring shock-absorbing pull rod 13 is connected to the upper cross bar through an angle code 4, and the lower end is connected to both side walls of the motor base 6 through bolts. The four Mecanum wheels are individually controlled by 4 motors, which can move in all directions and make the movement more flexible. The hinge can adjust the height of the wheel components up and down when the vehicle passes through uneven roads, and cooperate with the spring shock-absorbing pull rod to reduce the vibration and impact caused by the uneven road surface through the damping effect, and improve the stability of the vehicle.

[0034] The photovoltaic mechanism is installed on the top of the frame 12 and includes a top glass plate 9, photovoltaic panel struts 10, a flexible photovoltaic panel 11, a guide rail 1, and a micro-guide rail motor 2. The flexible photovoltaic panel 11 is connected to a storage battery 37 installed at the upper end of a circular chassis 17. The micro-guide rail motor 2 and the flexible photovoltaic panel 11 are fixed together through the groove of the micro-guide rail motor and are slidably limited in the guide rail 1. Such a design can drive the flexible photovoltaic panel 11 to move along the guide rail 1 through the micro-guide rail motor 2, realizing the function of telescoping the flexible photovoltaic panel 11. When the lawn mower is working, the flexible photovoltaic panel 11 can continuously charge the storage battery 37, and the storage battery 37 supplies power to the anti-toppling lawn mower. In this embodiment, the flexible photovoltaic panel 11 is a flexible perovskite photovoltaic panel, and the number is three. The three flexible photovoltaic panels 11 are horizontally installed between four photovoltaic panel struts 10. Each flexible photovoltaic panel 11 is equipped with a guide rail 1 and a micro-guide rail motor 2. When the work is completed, the three flexible photovoltaic panels 11 can be pushed out through the motor-controlled guide rail to increase the photovoltaic power generation area and achieve the purpose of charging and energy saving.

[0035] The lifting cutting mechanism is installed inside the frame 12 and extends below the frame 12, and includes a circular chassis 17, a cutting blade 14 installed below the circular chassis 17 through a bottom bearing sleeve II 33, a wind blocking baffle 19 installed on the lower surface of the circular chassis 17, an arc baffle 20, an air duct plate 21, two splash-proof baffles 22, a suction fan 23, a lifting component for driving the cutting blade 14 to lift, and a driving component for driving the cutting blade 14 to rotate. The included angle between the two air duct plates 21 is 21.4°, forming a narrow air duct with the wind blocking baffle 19; the arc baffle 20 is provided with fine gaps, and a rubber layer 16 is provided on the outer side surface. A set of baffle fork plates 18 are symmetrically arranged on both sides. The baffle fork plates 18 are used to fork open the grass clusters and gather the grass to be cut in the cutting area in front of the arc baffle, and are integrally formed with the arc baffle 20. The air duct plate 21 is arranged between one of the splash-proof baffles 22 and the arc baffle 20, which is used to prevent the wind generated by the cutting of the cutting blade from affecting the adsorbed grass and form a semi-closed air suction area, improving the adsorption effect of the grass. The cutting blade 14 is installed at the lower end of the bottom bearing sleeve II 33 through a blade clamp 15, and there is no interference with the baffle fork plates 18, the wind blocking baffle 19, the arc baffle 20, the air duct plate 21, and the splash-proof baffles 22. When the lawn mower moves forward, the grass is constrained in the arc area by the baffle fork plates 18. The suction fan uses strong wind to adsorb the grass to be cut on the arc baffle with fine gaps through the designed air duct. At the same time, a rubber layer is installed in front of the baffle, which can effectively increase the friction with the grass to prevent the side shift of the grass and achieve the anti-toppling effect. Then, the high-speed cutting motor drives the blade to quickly cut the straightened grass.

[0036] In this embodiment, the lifting assembly includes a middle-layer support plate 32 installed at the upper end of a circular chassis 17 through a support plate base 34, two sets of screw jacks 28 installed on the middle-layer support plate 32, a set of screw jack motors 35, and a top-layer lifting platform bottom plate 31 installed at the upper ends of the two sets of screw jacks 28. Each set of screw jacks 28 includes two screw jacks 28, and the two screw jacks 28 are connected by a screw connection long shaft 30. A set of screw jack motors 35 includes two screw jack motors 35, and the two screw jack motors 35 are connected by a coupling 29. The screw jack is driven by the screw jack motor 35. Using the rotational movement of the threaded screw, it drives the middle-layer support plate 32 to move up and down, thereby realizing the lifting adjustment of the cutting blade. During use, by remotely inputting an instruction, the coupling is used to transmit the power of the threaded screws of the two screw jacks, enabling the two threaded screws to perform the same movement. Then, the four screw jacks are connected through two long shafts to achieve synchronous and precise automatic lifting of the 4 screws, causing the entire lifting platform to drive the cutting motor and the cutting blade to achieve precise lifting, achieving the effect of automatic and precise adjustment of the cutting height.

[0037] In this embodiment, the driving assembly includes a cutting motor shaft coupler 24, a cutting motor 25, a cutting shaft 26, a bottom bearing sleeve I 27, and a bottom bearing sleeve II 33. The cutting motor shaft coupler 24 and the cutting motor 25 are installed at the upper end of the top-layer lifting platform bottom plate 31. The bottom bearing sleeve I 27 is installed at the upper end of the middle-layer support plate 32. The upper end is connected to the top-layer lifting platform bottom plate 31 through the cutting shaft 26, and the lower end is connected to the bottom bearing sleeve II 33. The upper end of the cutting shaft 26 passes through the top-layer lifting platform bottom plate 3 and is connected to the cutting motor shaft coupler 24. The bottom bearing sleeve II 33 is connected to the cutting blade 14 through a blade clamp 15. During use, the cutting motor 25 is started, transmitted to the cutting shaft 26 through the cutting motor shaft coupler 24, then transmitted to the bottom bearing sleeve I 27 through the cutting shaft 26, and transmitted to the bottom bearing sleeve II 33 through the bottom bearing sleeve I 27, thereby driving the cutting blade 14 to rotate and realizing cutting.

[0038] When this specific embodiment is in use, it includes the following steps:

[0039] S1. Preset the cutting height in advance;

[0040] S2. After the designated work area is completed, the exhaust fan and the cutting machine stop working;

[0041] S3. Manually input the changed cutting height;

[0042] S4. The control system issues an instruction;

[0043] S5. The lifting motor drives the lifting platform to adjust the cutting height;

[0044] S6. The exhaust fan and the cutting machine start to operate, and the lawn mower continues to work.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A mowing machine with controllable mowing height and anti-overturning function, comprising a frame (12), characterized in that: It also includes: A traveling mechanism, symmetrically installed on both sides of the frame by the vehicle frame (3). Each set of traveling mechanisms includes two Mecanum wheels (7) with DC drive motors (5). The motor mounts (6) of the two Mecanum wheels (7) are respectively hinged to the vehicle frame (3) through hinges (8). A photovoltaic mechanism, installed on the top of the frame (12), including a top glass plate (9), photovoltaic panel struts (10), a flexible photovoltaic panel (11), a guide rail (1) and a micro-guide rail motor (2). The flexible photovoltaic panel (11) is driven by the micro-guide rail motor (2) to move along the guide rail (1) to realize the telescopic function of the flexible photovoltaic panel (11). A lifting and cutting mechanism, installed inside the frame (12) and extending below the frame (12), including a circular chassis (17), a cutting blade (14) installed below the circular chassis (17) through a bottom bearing sleeve II (33), a baffle fork plate (18) installed on the lower surface of the circular chassis (17), a wind blocking baffle (19), an arc baffle (20), an air duct plate (21), a splash-proof baffle (22), a suction fan (23), a lifting component for driving the cutting blade (14) to lift and a driving component for driving the cutting blade (14) to rotate.

2. The anti-overturning lawn mower with controllable mowing height according to claim 1, characterized in that: The vehicle frame (3) is in a C shape, which is formed by connecting a lower cross bar, vertical bars and a lower cross bar. Both sides of the motor mount (6) are respectively connected to the upper cross bar of the vehicle frame (3) through spring shock-absorbing pull rods (13). The upper end of the spring shock-absorbing pull rod (13) is connected to the upper cross bar through an angle code (4), and the lower end is connected to both side walls of the motor mount (6) through bolts.

3. The mowing machine with controllable mowing height and anti-overturning as claimed in claim 1, wherein: The lifting component includes a middle layer support plate (32) installed on the upper end of the circular chassis (17) through a support plate base (34), two sets of screw jacks (28) installed on the middle layer support plate (32), a set of screw jack motors (35), and a top layer lifting platform bottom plate (31) installed on the upper ends of the two sets of screw jacks (28). Each set of screw jacks (28) includes two screw jacks (28), and the two screw jacks (28) are connected by a screw connecting long shaft (30). A set of screw jack motors (35) includes two screw jack motors (35), and the two screw jack motors (35) are connected by a coupling (29).

4. The anti-overturning mower with controllable mowing height according to claim 1, characterized in that: The driving component includes a cutting motor shaft coupler (24), a cutting motor (25), a cutting shaft (26), a bottom bearing sleeve I (27), and a bottom bearing sleeve II (33). The cutting motor shaft coupler (24) and the cutting motor (25) are installed on the upper end of the top layer lifting platform bottom plate (31). The bottom bearing sleeve I (27) is installed on the upper end of the middle layer support plate (32), and the upper end is connected to the top layer lifting platform bottom plate (31) through the cutting shaft (26), and the lower end is connected to the bottom bearing sleeve II (33). The upper end of the cutting shaft (26) penetrates through the top layer lifting platform bottom plate (31) and is connected to the cutting motor shaft coupler (24). The bottom bearing sleeve II (33) is connected to the cutting blade (14) through the bottom bearing sleeve II (33).

5. The anti-overturning mower with controllable mowing height according to claim 1, characterized in that: It further includes a storage battery (37) installed at the upper end of a circular chassis (17). The storage battery (37) is electrically connected to the flexible photovoltaic panel (11) and is used to supply power to the anti-toppling lawn mower.

6. The anti-overturning lawn mower with controllable mowing height according to claim 2, characterized in that: The cutting blade (14) is installed at the lower end of a sleeve II (33) with a bearing at the bottom through a blade clamp (15), and there is no interference with the baffle fork plate (18), the wind blocking baffle (19), the arc baffle (20), the air duct plate (21), and the splash-proof baffle (22).

7. The mowing machine with controllable mowing height and anti-overturning as claimed in claim 2, characterized in that: The flexible photovoltaic panel (11) is a flexible perovskite photovoltaic panel, and there are three of them. The three flexible photovoltaic panels (11) are horizontally installed between four photovoltaic panel supports (10), and each flexible photovoltaic panel (11) is equipped with a guide rail (1) and a micro-guide rail motor (2).

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