Obstacle avoidance type farmland weeding equipment

Abstract

The utility model relates to the technical field of agricultural equipment, in particular to obstacle avoidance type farmland weeding equipment, which is characterized in that a driving motor is fixedly arranged at the upper part of an electric power-assisted cart, a first driving shaft is fixedly arranged on an output shaft of the driving motor, and the lower end of the first driving shaft rotationally penetrates through the electric power-assisted cart through a bearing and then is fixedly provided with a first cutter head; a second driving shaft is rotatably inserted into the bottom of the moving frame through a bearing, a second cutter head is fixedly arranged at the lower end of the second driving shaft, a swing rod is fixedly arranged on the rotating cylinder, a third driving shaft is rotatably inserted into the bottom of the swing rod through a bearing, and a third cutter head is fixedly arranged at the lower end of the third driving shaft; the rotating disc is rotationally arranged on the upper portions of the two swing rods through the rotating shaft, an air spring is hinged to the side wall of the moving frame, one end of the air spring is hinged to the swing rods, and therefore avoiding of trees or stones can be achieved, and adaptive adjustment can be conducted according to the range of a use site.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, specifically to an obstacle-avoidance weeding device for farmland. Background Technology

[0002] Farmland weeding refers to the removal of weeds from fields by mechanical, chemical, or manual means to reduce their impact on crop growth and improve crop yield and quality. Currently, farmland weeding equipment often encounters obstacles such as trees and rocks during operation, which can easily damage the equipment or crops. At the same time, existing weeding equipment lacks adjustment capabilities and cannot be adjusted according to the row spacing and obstacle distribution in the working area, resulting in poor adaptability and affecting weeding efficiency and effectiveness. Therefore, there is an urgent need for an obstacle-avoidance farmland weeding equipment. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed obstacle-avoiding farmland weeding device to solve the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes an electric-assisted trolley, a power supply and a controller, the power supply is fixedly installed on the upper part of the electric-assisted trolley, and the controller is electrically connected to the power supply on the handle of the electric-assisted trolley.

[0005] It also includes:

[0006] A drive motor is fixedly mounted on the upper part of the electric assisted trolley. A drive shaft is fixedly mounted on the output shaft of the drive motor. The lower end of the drive shaft rotates through the electric assisted trolley via a bearing and is then fixedly mounted on a cutter head.

[0007] The mobile frame consists of two frames, which are slidably mounted on the front and rear sides of the electric assisted trolley via slide rails. The electric assisted trolley is equipped with a synchronous adjustment mechanism connected to the mobile frame. A second drive shaft is rotatably inserted into the bottom of the mobile frame via a bearing, and a second cutter head is fixedly mounted at the lower end of the second drive shaft.

[0008] Two rotating cylinders are respectively mounted on two movable frames via bearings. A swing rod is fixedly mounted on the rotating cylinder. A No. 3 drive shaft is inserted into the bottom of the swing rod via a bearing. A No. 3 cutter head is fixedly mounted at the lower end of the No. 3 drive shaft.

[0009] A rotating disk is rotatably mounted on the upper part of two swing rods via a rotating shaft. A gas spring is hinged to the side wall of the moving frame, with one end of the gas spring hinged to the swing rod. Drive shafts 1, 2, and 3 are connected by a synchronous drive mechanism.

[0010] Furthermore, the synchronization adjustment mechanism includes:

[0011] The screw is rotatably inserted into a movable slot on the electric assisted trolley via a bearing. An adjustment handle fixedly connected to the screw is provided on the right side of the electric assisted trolley. Two movable blocks are rotatably mounted on the screw via threads, and the movable blocks are movably disposed in the movable slot.

[0012] There are four connecting rods, which are respectively hinged to the front and rear sides of the two movable blocks, and one end of the connecting rod is hinged to the movable frame.

[0013] Furthermore, the synchronous drive mechanism includes:

[0014] A first driven rod is rotatably mounted inside the electric assisted trolley via a bearing. One end of the first driven rod is rotatably connected to the first drive shaft via a bevel gear pair. The other end of the first driven rod is rotatably connected to a second driven rod via a bevel gear pair. The second driven rod is rotatably mounted inside the electric assisted trolley via a bearing.

[0015] The third driven rod is rotatably inserted into the two movable frames through bearings. Both ends of the second driven rod are fixedly provided with linkage rods, and the linkage rods are movably inserted into the third driven rod. One end of the third driven rod is rotatably connected to the second drive shaft through a bevel gear pair.

[0016] A rotating rod is rotatably inserted into the lower end of the rotating cylinder via a bearing. The rotating rod is connected to the second drive shaft via a pulley and a belt drive, and the rotating rod is connected to the third drive shaft via a pulley and a belt drive.

[0017] Furthermore, the right side of the third cutter head is equipped with a protective cover, which is fixedly mounted on the swing arm.

[0018] Furthermore, guide rods are fixedly installed on both the front and rear sides of the electric-assisted trolley, and the guide rods are movably inserted into the movable frame.

[0019] Furthermore, an annular groove is formed on the side wall of the rotating disk, and a rubber ring is fixedly installed in the annular groove.

[0020] Compared with the prior art, the beneficial effects of this utility model are: the obstacle avoidance farmland weeding equipment described in this utility model can not only avoid trees or rocks, but also be adapted and adjusted according to the size of the area where it is used. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a three-dimensional structural view of the bottom of this utility model.

[0023] Figure 3This is a cross-sectional view of the electric-assisted trolley and mobile frame in this utility model.

[0024] Figure 4 This is an exploded view of the parts of the movable frame, the second drive shaft, the rotating cylinder, the swing rod, the third drive shaft, the rotating disk, the rotating rod, the protective cover, and the rubber ring in this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] Electric Assisted Cart 1. Power Supply 2. Controller 3. Drive Motor 4. Drive Shaft 1 5. Cutter Head 1 6. Moving Frame 7. Synchronous Adjustment Mechanism 8. Screw 8-1, Adjustment Handle 8-2, Movable Block 8-3, Connecting Rod 8-4, Drive Shaft 2 9. Cutter Head 2 10. Rotating Cylinder 11. Swing Rod 12. Drive Shaft 3 13. Cutter Head 3 14. Rotating Disc 15. Gas Spring 16. Synchronous Drive Mechanism 17. Driven Rod 17-1, Driven Rod 27-2, Driven Rod 37-3, Linkage Rod 17-4, Rotating Rod 17-5, Movable Slot 18. Protective Cover 19. Guide Rod 20. Rubber Ring 21. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] like Figures 1-4 As shown, the specific embodiment adopts the following technical solution: it includes an electric-assisted stroller 1, a power supply 2 and a controller 3. The power supply 2 is fixedly installed on the upper part of the electric-assisted stroller 1, and the controller 3, which is electrically connected to the power supply 2, is installed on the handle of the electric-assisted stroller 1.

[0029] It also includes:

[0030] A drive motor 4 is fixedly mounted on the upper part of the electric assisted trolley 1. A first drive shaft 5 is fixedly mounted on the output shaft of the drive motor 4. The lower end of the first drive shaft 5 passes through the electric assisted trolley 1 through a bearing and is then fixedly mounted on a first cutter head 6.

[0031] Two movable frames 7 are slidably mounted on the front and rear sides of the electric assisted trolley 1 via slide rail pairs. The electric assisted trolley 1 is equipped with a synchronous adjustment mechanism 8 connected to the movable frames 7. A second drive shaft 9 is rotatably inserted into the bottom of the movable frame 7 via a bearing. A second cutter head 10 is fixedly mounted at the lower end of the second drive shaft 9. Guide rods 20 are fixedly mounted on both the front and rear sides of the electric assisted trolley 1, and the guide rods 20 are movably inserted into the movable frames 7. The guide rods 20 can provide auxiliary guidance for the movement of the movable frames 7, thereby effectively improving the stability of the movable frames 7.

[0032] Two rotating cylinders 11 are respectively mounted on two movable frames 7 via bearings. A swing rod 12 is fixedly mounted on the rotating cylinder 11. A third drive shaft 13 is inserted into the bottom of the swing rod 12 via a bearing. A third cutter head 14 is fixedly mounted at the lower end of the third drive shaft 13. A protective cover 19 is provided on the right side of the third cutter head 14 and is fixedly mounted on the swing rod 12. The protective cover 19 can provide protection on the right side of the third cutter head 14 to prevent grass blades from splashing to the right and affecting the workers.

[0033] A rotating disk 15 is rotatably mounted on the upper part of two swing rods 12 via a rotating shaft. A gas spring 16 is hinged to the side wall of the moving frame 7. One end of the gas spring 16 is hinged to the swing rod 12. The first drive shaft 5, the second drive shaft 9, and the third drive shaft 13 are connected by a synchronous drive mechanism 17. A ring groove is opened on the side wall of the rotating disk 15. A rubber ring 21 is fixedly installed in the ring groove. The rubber ring 21 can provide contact buffer between the rotating disk 15 and obstacles such as trees to avoid wear caused by trees or the rotating disk 15.

[0034] The synchronization adjustment mechanism 8 includes:

[0035] The screw 8-1 is inserted into the movable slot 18 on the electric assisted trolley 1 via a bearing. The right side of the electric assisted trolley 1 is provided with an adjustment handle 8-2 that is fixedly connected to the screw 8-1. Two movable blocks 8-3 are rotatably sleeved on the screw 8-1 via a thread. The movable blocks 8-3 are movably disposed in the movable slot 18.

[0036] There are four connecting rods 8-4, which are respectively hinged to the front and rear sides of the two movable blocks 8-3. One end of the connecting rod 8-4 is hinged to the movable frame 7. Through the cooperation of the screw 8-1, the connecting rod 8-4 and the movable block 8-3, the two movable frames 7 can move synchronously in opposite directions, so as to adjust the weeding range and the width of the equipment during the movement according to the different row spacing of the farmland.

[0037] The synchronous drive mechanism 17 includes:

[0038] A first driven rod 17-1 is rotatably mounted inside the electric assisted trolley 1 via a bearing. One end of the first driven rod 17-1 is rotatably connected to the first drive shaft 5 via a bevel gear pair. The other end of the first driven rod 17-1 is rotatably connected to a second driven rod 17-2 via a bevel gear pair. The second driven rod 17-2 is rotatably mounted inside the electric assisted trolley 1 via a bearing.

[0039] The third driven rod 17-3 is rotatably inserted into the two movable frames 7 via bearings. Both ends of the second driven rod 17-2 are fixedly provided with linkage rods 17-4, and the linkage rods 17-4 are movably inserted into the third driven rod 17-3. One end of the third driven rod 17-3 is rotatably connected to the second drive shaft 9 via a bevel gear pair.

[0040] Rotating rod 17-5 is rotatably inserted into the lower end of rotating cylinder 11 via bearing. Rotating rod 17-5 is connected to the second drive shaft 9 via a pulley and belt drive. Rotating rod 17-5 is also connected to the third drive shaft 13 via a pulley and belt drive.

[0041] When using this utility model, the electric-assisted trolley 1 is pushed to move on the farmland, and the drive motor 4 is started. The drive motor 4 drives the first drive shaft 5 to rotate, which in turn drives the first cutter head 6 to rotate. The transmission of the bevel gear pair causes the first driven rod 17-1 to rotate. The first driven rod 17-1 drives the second driven rod 17-2 to rotate via the bevel gear pair. The second driven rod 17-2 drives the third driven rod 17-3 to rotate via the linkage rod 17-4 and the bevel gear pair. The third driven rod 17-3 drives the second drive shaft 9 to rotate via the bevel gear pair. The second drive shaft 9 drives the second cutter head 10 to rotate, and the rotation of the first driven rod 1... 7-5. Under the transmission action of the pulley and belt, the No. 3 drive shaft 13 can also drive the No. 3 cutter head 14 to rotate. At this time, the synchronous rotation of the No. 1 cutter head 6, the No. 2 cutter head 10 and the No. 3 cutter head 14 can realize the weeding of the farmland. When there are obstacles such as trees on the front and back sides of the weeding equipment, the rotating disk 15 will come into contact with the trees to avoid the No. 3 cutter head 14 from affecting the obstacles. As the electric push cart 1 continues to move, the swing arm 12 will rotate in the direction of the electric push cart 1 using the rotating cylinder 11 and compress the gas spring 16, so that the rotating disk 15 and the No. 3 cutter head 14 can bypass the obstacles and achieve obstacle avoidance.

[0042] When it is necessary to adapt to farmland with different row spacing specifications, the adjustment handle 8-2 can be rotated. The adjustment handle 8-2 drives the screw 8-1 to rotate, so that the two movable blocks 8-3 move synchronously. With the help of the sliding rail pair to guide the movement of the moving frame 7 and the connecting rod 8-4, the front and rear moving frames 7 can move synchronously in opposite directions. The distance between the two second cutter discs 10 and the two third cutter discs 14 can be adjusted to expand or shrink the weeding range according to the different row spacing specifications of the farmland.

[0043] Compared with the prior art, the beneficial effects of this utility model are:

[0044] By cooperating with the rotating cylinder 11, the swing rod 12, the rotating disk 15 and the gas spring 16, obstacles such as trees or rocks can be avoided, thus preventing damage to the equipment or obstacles.

[0045] With the cooperation of the synchronous adjustment mechanism 8, the distance between the second cutter disc 10 on both sides and the third cutter disc 14 on both sides can be adjusted according to the different row spacing specifications of the farmland to achieve the adaptation of the weeding range and the size of the passing range.

[0046] The guide rod 20 can provide auxiliary guidance for the movement of the movable frame 7, thereby effectively improving the stability of the movable frame 7;

[0047] The rubber ring 21 provides contact cushioning between the rotating disk 15 and obstacles such as trees, preventing wear and tear on the trees or rotating disk 15.

[0048] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. Obstacle avoidance type farmland weeding equipment, it contains electric power cart (1), power (2) and controller (3), electric power cart (1) upper fixedly provided with power (2), electric power cart (1) handlebar is equipped with the controller (3) of electric connection with power (2); characterized in that It also contains: Driving motor (4), the driving motor (4) is fixedly arranged on the upper portion of electric power cart (1), a driving shaft (5) is fixedly arranged on the output shaft of driving motor (4), the lower end of a driving shaft (5) is rotatably inserted through the rear of electric power cart (1) and is fixedly provided with a first cutter head (6); Moving frame (7), the moving frame (7) is two, is slidably arranged in the front and rear sides of electric power cart (1) through slide rail pair, electric power cart (1) is equipped with synchronous adjusting mechanism (8) connected with moving frame (7), moving frame (7) bottom is rotatably inserted with the second driving shaft (9), the lower end of the second driving shaft (9) is fixedly provided with the second cutter head (10); Rotary cylinder (11), the rotary cylinder (11) is two, is rotatably arranged on two moving frames (7) through bearing, the rotary cylinder (11) is fixedly provided with swing rod (12), the bottom of swing rod (12) is rotatably inserted with the third driving shaft (13), the lower end of the third driving shaft (13) is fixedly provided with the third cutter head (14); Rotary disc (15), the rotary disc (15) is rotatably arranged on the upper portion of two swing rods (12) through rotary shaft, the side wall of moving frame (7) is hinged with gas spring (16), one end of gas spring (16) is hinged with swing rod (12), a driving shaft (5), a second driving shaft (9) and a third driving shaft (13) are connected through synchronous driving mechanism (17).

2. The obstacle avoidance type farmland weeding device according to claim 1, characterized in that: The synchronous adjusting mechanism (8) contains: Screw rod (8-1), the screw rod (8-1) is rotatably inserted in the movable slot (18) formed in electric power cart (1), the right side of electric power cart (1) is provided with adjusting handle (8-2) fixedly connected with screw rod (8-1), two movable blocks (8-3) are rotatably sleeved on screw rod (8-1) through thread, movable block (8-3) is movably arranged in movable slot (18); Connecting rod (8-4), the connecting rod (8-4) is four, is hinged in the front and rear sides of two movable blocks (8-3), one end of connecting rod (8-4) is hinged with moving frame (7).

3. The obstacle avoidance type farmland weeding device according to claim 1, characterized in that: The synchronous driving mechanism (17) contains: First driven rod (17-1), the first driven rod (17-1) is rotatably arranged in electric power cart (1) through bearing, one end of first driven rod (17-1) is rotatably connected with a driving shaft (5) through bevel gear pair, the other end of first driven rod (17-1) is rotatably connected with second driven rod (17-2) through bevel gear pair, second driven rod (17-2) is rotatably inserted in electric power cart (1) through bearing; The third driven rod (17-3) is rotatably inserted into the two moving frames (7) through a bearing, both ends of the second driven rod (17-2) are fixedly provided with a linkage rod (17-4), the linkage rod (17-4) is movably inserted into the third driven rod (17-3), and one end of the third driven rod (17-3) is rotatably connected with the second driving shaft (9) through a bevel gear pair; The rotating rod (17-5) is rotatably inserted into the lower end of the rotating cylinder (11) through a bearing, the rotating rod (17-5) is drivingly connected with the second driving shaft (9) through a belt pulley and a belt, and the rotating rod (17-5) is drivingly connected with the third driving shaft (13) through a belt pulley and a belt.

4. The obstacle avoidance type farmland weeding device according to claim 1, characterized in that: The right side of the third cutter head (14) is provided with a protective cover (19), and the protective cover (19) is fixedly arranged on the swing rod (12).

5. The obstacle avoidance type farmland weeding device according to claim 1, characterized by: Both sides of the electric power cart (1) are fixedly provided with guide rods (20), and the guide rods (20) are movably inserted into the moving frames (7).

6. The obstacle avoidance type farmland weeding device according to claim 1, characterized by: The rotating disc (15) is provided with a ring groove in the ring side wall, and a rubber ring (21) is fixedly arranged in the ring groove.

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