A self-propelled lawnmower

Abstract

This invention relates to the field of lawnmower technology, specifically a self-propelled lawnmower. It includes a tracked motor and a mowing section. The front end of the tracked motor is equipped with an assembly platform for accommodating the mowing section. The tracked motor's interior includes a drive section, a first drive arm, and a second drive arm. The drive section extends the first and second drive arms outwards. The mowing section is connected to the first drive arm. The outer end of the second drive arm is connected to a limiting component, located at the rear of the tracked motor. This design allows the mowing section and the limiting component to extend and be limited simultaneously. During the lawnmower's uphill climb, the limiting component assists and limits the rear of the mower, while simultaneously balancing the drive section and the mowing section, improving the mower's uphill performance and preventing accidents and damage during the climb.

Description

Technical Field

[0001] This invention relates to the field of lawnmower technology, specifically a self-propelled lawnmower. Background Technology

[0002] Developing agricultural mechanization, improving work efficiency, and increasing agricultural production efficiency are of paramount importance. Lawn mowers play a vital role in agricultural production. Compared with manual mowing, they not only increase speed and save time for mowers, but also reduce the input of a large amount of human resources.

[0003] However, existing tracked lawnmowers generally only operate on horizontal surfaces, have poor climbing performance, and low efficiency in weeding on slopes. Therefore, this application provides a self-propelled lawnmower to solve the problems of poor climbing performance and low weeding efficiency of existing tracked lawnmowers. Summary of the Invention

[0004] To address the above problems, the present invention provides a self-propelled lawn mower.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a self-propelled lawn mower, including a tracked machine and a mowing part, wherein the front end of the tracked machine is provided with an assembly platform for accommodating the mowing part, the tracked machine is provided with a drive part, a first drive arm and a second drive arm inside, the drive part is used to extend the first drive arm and the second drive arm outward, the mowing part is connected to the first drive arm, and the outer end of the second drive arm is connected to a limiting component, the limiting component being located at the rear side of the tracked machine.

[0006] As an optimization, the driving part includes a drive motor, the output shaft of the drive motor is connected to a drive gear, and the first drive arm and the second drive arm are provided with a connecting rack in the length direction, and the drive gear is meshed with the connecting rack.

[0007] The first drive arm and the second drive arm are arranged horizontally and parallel to each other, and the drive gear is located between the first drive arm and the second drive arm.

[0008] As an optimization, the limiting component includes a mounting crossbar, a limiting tooth, and an auxiliary wheel. The mounting crossbar is horizontally connected to the outer end of the second drive arm. The lower end of the limiting tooth is set towards the rear side of the track machine. Telescopic rods are rotatably provided at both ends of the mounting crossbar. The auxiliary wheel is connected to the extended end of the telescopic rod.

[0009] A spring shaft connects the mounting crossbar and the telescopic rod.

[0010] As an optimization, a diagonal brace is provided on the upper side of the front end of the first drive arm, and a push rod is connected to the upper side of the diagonal brace;

[0011] The first drive arm is connected to a first crank arm and a second crank arm in sequence from front to back. A push rod is connected to the diagonal brace. The extended end of the push rod is connected to the upper end of the first crank arm. A connecting rod is rotatably arranged between the upper end of the first crank arm and the upper end of the second crank arm. A slip-fit ​​screw connects the grass-cutting part to the other end of the crank arm.

[0012] As an optimization, the mowing part includes a blade holder, the lower end of the union screw is rotatably connected to the upper part of the blade holder, and a support link is connected to the lower side of the first drive arm, the front end of the support link being rotatably connected to the rear end of the blade holder.

[0013] As an optimization, the first crank arm and the second crank arm are L-shaped, and the bends of the first crank arm and the second crank arm are rotatably connected to the first drive arm.

[0014] As an optimization, the number of the first drive arm and the second drive arm is at least 2.

[0015] This solution provides a self-propelled lawnmower, which has the following advantages:

[0016] The lawnmower of this application is equipped with a drive unit inside. The drive unit can drive the first drive arm and the second drive arm to extend outward, so that the mowing part and the limiting component extend outward at the same time. During the lawnmower's climbing process, the limiting component assists and limits the rear side of the lawnmower, while balancing the drive unit and the mowing part, improving the lawnmower's climbing performance and avoiding accidents and damage to the lawnmower during the climbing process. Attached Figure Description

[0017] Figure 1 This is an isometric view of the present invention.

[0018] Figure 2 This is a schematic diagram of the climbing operation state of the present invention.

[0019] Figure 3 This is a cross-sectional view of the drive section and the first and second drive arms of the present invention.

[0020] Figure 4 This is a schematic diagram of the connection structure between the drive part and the first drive arm and the second drive arm of the present invention.

[0021] Figure 5 This is a schematic diagram of the grass-cutting part of the present invention.

[0022] Among them, 1. Tracked machine, 2. First drive arm, 3. Second drive arm, 4. Drive motor, 5. Drive gear, 6. Connecting rack, 7. Mounting crossbar, 8. Limiting tooth, 9. Auxiliary wheel, 10. Telescopic rod, 11. Diagonal brace, 12. Push rod, 13. First crank arm, 14. Second crank arm, 15. Connecting rod, 16. Union bolt, 17. Tool holder, 18. Support connecting rod. Detailed Implementation

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figure 1-5 As shown, a self-propelled lawnmower includes a tracked motor 1 and a mowing section. The front end of the tracked motor 1 is provided with an assembly platform for accommodating the mowing section. The tracked motor 1 has a drive section, a first drive arm 2, and a second drive arm 3 inside. The drive section is used to extend the first drive arm 2 and the second drive arm 3 outward. The mowing section is connected to the first drive arm 2. The outer end of the second drive arm 3 is connected to a limiting component, which is located at the rear of the tracked motor 1.

[0025] The first drive arm 2 and the second drive arm 3 are both arranged along the length direction of the tracked machine 1.

[0026] like Figure 3 and Figure 4 As shown, the driving part includes a drive motor 4, the output shaft of the drive motor 4 is connected to a drive gear 5, and the first drive arm 2 and the second drive arm 3 are provided with a connecting rack 6 in the length direction. The drive gear 5 is meshed with the connecting rack 6.

[0027] The first drive arm 2 and the second drive arm 3 are arranged horizontally and parallel to each other, and the drive gear 5 is located between the first drive arm 2 and the second drive arm 3.

[0028] like Figure 3 and Figure 4As shown, the limiting assembly includes a mounting crossbar 7, a limiting tooth 8, and an auxiliary wheel 9. The mounting crossbar 7 is horizontally connected to the outer end of the second drive arm 3. The lower end of the limiting tooth 8 is set towards the rear side of the track machine 1. Telescopic rods 10 are rotatably provided at both ends of the mounting crossbar 7. The auxiliary wheel 9 is connected to the extended end of the telescopic rod 10.

[0029] A spring shaft connects the mounting crossbar 7 and the telescopic rod 10.

[0030] like Figure 5 As shown, the front end of the first drive arm 2 is provided with a diagonal brace 11, and a push rod 12 is connected to the upper side of the diagonal brace 11.

[0031] The first drive arm 2 is connected from front to back to a first crank arm 13 and a second crank arm 14. A push rod 12 is connected to the diagonal brace 11. The extended end of the push rod 12 is connected to the upper end of the first crank arm 13. A connecting rod 15 is rotatably arranged between the upper end of the first crank arm 13 and the upper end of the second crank arm 14. A slip-fit ​​screw 16 is connected between the grass-cutting part and the other end of the crank arm.

[0032] The push rod 12 has a travel distance of 100mm. When the push rod 12 extends, it pushes the first crank arm 13 to rotate. The first crank arm 13 drives the second crank arm 14 to rotate simultaneously via the connecting rod 15. The second crank arm 14 causes the union screw 16 to rise.

[0033] like Figure 5 As shown, the mowing part includes a blade holder 17, the lower end of the union screw 16 is rotatably connected to the upper part of the blade holder 17, and a support rod 18 is connected to the lower side of the first drive arm 2. The front end of the support rod 18 is rotatably connected to the rear end of the blade holder 17.

[0034] The tool holder 17 rises with the live screw 16 and is simultaneously constrained by the support rod 18, rotating around the fixed end of the support rod 18.

[0035] like Figure 5 As shown, the first crank arm 13 and the second crank arm 14 are L-shaped, and the bends of the first crank arm 13 and the second crank arm 14 are rotatably connected to the first drive arm 2.

[0036] The number of the first drive arm 2 and the second drive arm 3 is at least 2.

[0037] How to use:

[0038] When the device is in use, the drive motor 4 rotates, and the drive motor 4 drives the first drive arm 2 and the second drive arm 3 to extend outward at the same time, so that the mowing part and the limiting component extend outward at the same time.

[0039] The grass is cut by the mowing part, and the rear of the tracked machine 1 is limited by the limiting component;

[0040] When the tracked machine 1 is climbing a slope, the auxiliary wheel 9 rotates with the tracked machine 1. When the tracked machine 1 slides down the slope, the limiting tooth 8 is inserted into the slope surface. At the same time, the telescopic rod 10 and the mounting crossbar 7 rotate relative to each other, so that the telescopic rod 10 and the limiting tooth 8 are set in a V shape, which limits the rear end of the tracked machine 1.

[0041] During the mowing process, the push rod 12 extends and pushes the first crank arm 13 to rotate. The first crank arm 13 drives the second crank arm 14 to rotate simultaneously via the connecting rod 15. The second crank arm 14 drives the union screw 16 to rise, and the blade holder 17 rises with the union screw 16. At the same time, it is constrained by the support connecting rod 18 and rotates around the fixed end of the support connecting rod 18.

[0042] The above-described specific embodiments are merely specific examples of the present invention. The patent protection scope of the present invention includes, but is not limited to, the product form and style of the above-described specific embodiments. Any self-propelled lawnmower that conforms to the claims of the present invention and any appropriate changes or modifications made to it by those skilled in the art should fall within the patent protection scope of the present invention.

Claims

1. A self-propelled lawnmower, comprising a tracked motor (1) and a mowing section, characterized in that: The front end of the tracked machine (1) is provided with an equipment platform, which is used to accommodate the mowing part. The tracked machine (1) is provided with a drive part, a first drive arm (2) and a second drive arm (3) inside. The drive part is used to extend the first drive arm (2) and the second drive arm (3) outward. The mowing part is connected to the first drive arm (2). The outer end of the second drive arm (3) is connected to a limit component, which is located on the rear side of the tracked machine (1). The driving part includes a drive motor (4), the output shaft of the drive motor (4) is connected to a drive gear (5), and the first drive arm (2) and the second drive arm (3) are provided with a connecting rack (6) in the length direction. The drive gear (5) is meshed with the connecting rack (6). The first drive arm (2) and the second drive arm (3) are arranged horizontally and parallel to each other, and the drive gear (5) is located between the first drive arm (2) and the second drive arm (3); The front end of the first drive arm (2) is provided with a diagonal brace (11), and a push rod (12) is connected to the upper side of the diagonal brace (11). The first drive arm (2) is connected to a first crank arm (13) and a second crank arm (14) from front to back. A push rod (12) is connected to the diagonal brace (11). The extended end of the push rod (12) is connected to the upper end of the first crank arm (13). A connecting rod (15) is rotatably arranged between the upper end of the first crank arm (13) and the upper end of the second crank arm (14). A slip-fit ​​screw (16) is connected between the grass-cutting part and the other end of the crank arm. The mowing part includes a blade (17), the lower end of the live screw (16) is rotatably connected to the upper part of the blade (17), and a support rod (18) is connected to the lower side of the first drive arm (2), the front end of the support rod (18) is rotatably connected to the rear end of the blade (17). The limiting assembly includes a mounting crossbar (7), a limiting tooth (8), and an auxiliary wheel (9). The mounting crossbar (7) is horizontally connected to the outer end of the second drive arm (3). The lower end of the limiting tooth (8) is set towards the rear side of the track machine (1). Telescopic rods (10) are rotatably provided at both ends of the mounting crossbar (7). The auxiliary wheel (9) is connected to the extended end of the telescopic rod (10). A spring shaft connects the mounting crossbar (7) and the telescopic rod (10).

2. The self-propelled lawnmower according to claim 1, characterized in that: The first crank arm (13) and the second crank arm (14) are L-shaped, and the bends of the first crank arm (13) and the second crank arm (14) are rotatably connected to the first drive arm (2).

3. The self-propelled lawnmower according to claim 1, characterized in that: The number of the first drive arm (2) and the second drive arm (3) is at least 2.

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