Multi-row weeding device with automatic steering function

Abstract

A multi-row weeding device with an automatic steering function comprises a square-frame-shaped support and a plurality of weeding mechanisms installed on the bottom face of the square-frame-shaped support side by side, a support is arranged in the middle of the square-frame-shaped support, a vertical supporting shaft is arranged in the center of the support, and the upper end of the vertical supporting shaft is rotationally connected with the middle of a movable frame body; a driving mechanism for driving the square-frame-shaped bracket to horizontally and freely rotate is arranged on the movable frame body; the driving mechanism on the movable frame body of the device can drive the square-frame-shaped support to freely and horizontally rotate so as to adjust the direction of each weeding mechanism, so that after one-way weeding of the device is completed, row feed weeding can be achieved only by transversely moving and adjusting the direction of the weeding mechanism, the operation step of turning around is omitted, the operation process is simplified, and the weeding efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a multi-row weeding device with an automatic steering function. Background Art

[0002] Sesame is an important oil crop in my country, with a large planting area and significant economic benefits. Sesame is generally sown in rows, with a height of less than 20 cm in the seedling stage and slow growth. Sufficient sunlight between rows causes weeds to grow very fast, absorbing a large amount of fertilizer, affecting the normal growth of sesame seedlings and further affecting sesame yield.

[0003] Therefore, weeding needs to be done well during the sesame seedling period. At present, weeding is mainly done by weeders. This type of weeder mainly weeds through the rotary tillage roller rotating at the bottom, but the depth of the rotary tillage roller into the ground surface is limited, and there is a problem of incomplete removal of weed roots; and when the existing weeder reaches the end of the row and needs to change rows for weeding, it turns around by turning the weeder as a whole with the weeding mechanism on the frame to achieve row change weeding. This method usually cannot complete the turning and turning at one time. During the repeated adjustment of direction, the sesame seedlings at the end of the row will be crushed. The row change operation is troublesome and will cause the sesame seedlings to die and reduce production, which needs to be improved. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a multi-row weeding device with automatic steering function.

[0005] The technical solution of the utility model is: a multi-row weeding device with automatic steering function, comprising a square frame bracket and a plurality of weeding mechanisms installed side by side on the bottom surface of the square frame bracket, a support is provided in the middle of the square frame bracket, the support is welded and fixed between the side beams of the square frame bracket, a vertical support shaft is provided in the center of the support, the upper end of the vertical support shaft is rotatably connected to the middle of a moving frame body, the vertical support shaft and the moving frame body are rotatably connected through a bearing, a driving mechanism for driving the square frame bracket to rotate freely horizontally is provided on the moving frame body, and the spacing between each driving mechanism is the same.

[0006] Preferably, the driving mechanism includes an electric motor, a driving gear and a driven gear that mesh with each other, the driving gear and the driven gear are arranged horizontally, the electric motor is fixedly connected to the movable frame, the driven gear is fixedly connected to the middle part of the vertical support shaft, and the driving gear is fixedly connected to the output shaft of the electric motor through a key.

[0007] Preferably, an encoder is provided on the movable frame, and the encoder is fixedly connected to the movable frame via a U-shaped bracket, and the input shaft of the encoder is coaxially connected to the upper end of the vertical support shaft.

[0008] Preferably, the weeding mechanism includes a square cylindrical shell, a rocker arm and a shovel head. A rotating wheel is provided at the upper part of the square cylindrical shell. The rotating wheel is arranged vertically. An eccentric shaft is provided at the edge of the rotating wheel. The eccentric shaft is fixedly connected to the surface of the rotating wheel. A motor B is provided at the upper part of the outer wall of the square cylindrical shell to drive the rotating wheel to rotate. The motor B is a reduction motor. The upper end of the rocker arm is rotatably connected to the eccentric shaft. The lower end of the rocker arm extends out of the lower port of the square cylindrical shell by a certain distance. The shovel head is fixedly installed at the lower end of the rocker arm, and a guide component for providing guidance for the rocker arm is provided in the square cylindrical shell.

[0009] Preferably, the guide assembly includes a rotating shaft arranged in the lower part of the square cylindrical shell, the rotating shaft is rotatably connected to the side wall of the square cylindrical shell through a bearing, the outer end of the rotating shaft is fixedly connected to a square guide sleeve, and the middle part of the rocker arm is slidably sleeved in the guide sleeve.

[0010] Preferably, the shovel head is provided with a U-shaped sleeve, the U-shaped sleeve is matched and fitted on the lower end of the swing rod, and the shovel head is connected to the lower end of the swing rod through the U-shaped sleeve and bolts.

[0011] Preferably, a camera is provided at the lower end of the square cylindrical shell, and the camera is located behind the shovel head.

[0012] Preferably, four vertical connecting rods are provided at the four corners of the movable bracket.

[0013] The beneficial technical effects of the utility model are:

[0014] (1) The utility model weeding mechanism drives the rotating wheel to rotate through the motor, and the rotating wheel drives the swing arm to swing up and down through the eccentric shaft. During the swinging process, the swing arm is guided by the rotatable guide sleeve, so that the shovel head at the lower end of the swing arm swings back and forth in a fixed arc to achieve the weeding action, avoiding the problem that the weed roots cannot be completely removed by using the rotary tillage roller, improving the weeding effect between sesame rows, and multiple weeding mechanisms working synchronously can achieve high-efficiency synchronous weeding operations in multiple rows of sesame, effectively improving the weeding quality and efficiency.

[0015] (2) The driving mechanism on the mobile frame of the utility model can drive the square frame-shaped bracket to rotate freely horizontally to adjust the direction of each weeding mechanism. Therefore, after the single-pass weeding is completed, the device only needs to move horizontally and adjust the direction of the weeding mechanism to achieve row weeding, eliminating the steps of turning and U-turning, simplifying the row change operation process, and effectively preventing sesame seedlings from being crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a main structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure in which each weeding mechanism is installed on a square frame bracket;

[0019] Figure 4 It is a three-dimensional structural diagram of the weeding mechanism;

[0020] Figure 5 yes Figure 4 AA section structural diagram;

[0021] In the figure, 01. square frame bracket, 11. support, 12. vertical support shaft, 02. weeding mechanism, 31. motor A, 32. driving gear, 33. driven gear, 04. mobile frame, 41. encoder, 42. vertical connecting rod, 21. square cylindrical shell, 22. rocker arm, 23. shovel head, 231. U-shaped sleeve, 24. rotating wheel, 241. eccentric shaft, 25. motor B, 26. rotating shaft, 261. guide sleeve, 27. camera. DETAILED DESCRIPTION

[0022] Example 1, see the attached specification Figure 1-3 A multi-row weeding device with automatic steering function includes a square frame bracket 01 and a plurality of weeding mechanisms 02 installed side by side on the bottom surface of the square frame bracket 01, wherein the plurality of weeding mechanisms are installed on the square frame bracket 01 at equal intervals, and a support 11 is provided in the middle of the square frame bracket 01, and a vertical support shaft 12 is provided in the center of the support 11, and the upper end of the vertical support shaft 12 is rotatably connected to the middle of a moving frame body 04, so that the square frame bracket 01 can rotate freely on the moving frame body 04, and a driving mechanism for driving the square frame bracket 01 to rotate freely horizontally is provided on the moving frame body 04.

[0023] The driving mechanism includes a motor A 31, a driving gear 32 and a driven gear 33 that mesh with each other. The motor A 31 is fixedly connected to the movable frame 04. The motor A 31 is a reduction motor. The driven gear 33 is fixedly connected to the middle part of the vertical support shaft 12. The driving gear 32 is fixedly connected to the output shaft of the motor A 31. The motor A 31 drives the driving gear 32 to rotate, and the driving gear 32 drives the driven gear 33 to rotate. The driven gear 33 drives the square frame bracket 01 to rotate through the vertical support shaft 12, thereby adjusting the direction of each driving mechanism.

[0024] An encoder 41 is provided on the mobile frame 04, and the input shaft of the encoder 41 is coaxially connected to the upper end of the vertical support shaft 12. The encoder 41 is used to record the number of rotations of the vertical support shaft 12, thereby knowing whether the weeding mechanism 02 is adjusted to the accurate weeding position.

[0025] Four vertical connecting rods 42 are provided at the four corners of the mobile bracket, and the mobile bracket is connected to the traction device through the vertical connecting rods 42.

[0026] The working process and principle of the weeding device of this embodiment are as follows: the weeding device is driven by a tractor and moves forward along the sesame rows. Each weeding mechanism corresponds to each row and performs multi-row synchronous weeding operations. After weeding of each row is completed and reaches the end of the row, the driving mechanism drives the square frame bracket 01 to rotate freely horizontally, adjusts the direction of each weeding mechanism 02, and can reach other rows by lateral movement to perform return weeding operations, eliminating the steps of turning and U-turning, simplifying the operation process, and improving the weeding efficiency.

[0027] Example 2, see the attached specification Figure 3-5 The weeding mechanism 02 in the first embodiment includes a square cylindrical shell 21, a rocker arm 22 and a shovel head 23. A rotating wheel 24 is provided at the upper part of the square cylindrical shell, and an eccentric shaft 241 is provided at the edge of the rotating wheel 24. A motor B 25 is provided at the upper part of the outer wall of the square cylindrical shell to drive the rotating wheel 24 to rotate. The upper end of the rocker arm 22 is rotatably connected to the eccentric shaft 241. The motor B 25 is a reduction motor, which drives the rotating wheel 24 to rotate. The rotating wheel 24 drives the rocker arm 22 to swing up and down through the eccentric shaft 241. The lower end of the rocker arm 22 extends out of the lower port of the square cylindrical shell 21. The shovel head 23 is fixedly installed at the lower end of the rocker arm 22. A certain inclination angle is set between the shovel head 23 and the rocker arm 22, and a guide component for providing guidance for the rocker arm 22 is provided in the square cylindrical shell.

[0028] The guide assembly includes a rotating shaft 26 installed in the lower part of the square cylindrical shell, and a guide sleeve 261 is fixedly connected to the outer end of the rotating shaft 26. The guide sleeve 261 can rotate freely through the rotating shaft 26. The middle part of the rocker arm 22 is slidably sleeved in the guide sleeve 261, and the guide sleeve 261 provides sliding guidance for the rocker arm 22.

[0029] A U-shaped sleeve 231 is provided on the shovel head 23 , and the shovel head 23 is connected to the lower end of the swing rod 22 through the U-shaped sleeve 231 and bolts. This connection structure is convenient for disassembly, maintenance and replacement of the shovel head 23 .

[0030] A camera 27 is provided at the lower end of the square cylindrical housing 21 . The camera 27 is located behind the shovel head 23 . The weeding status is monitored in real time through the camera 27 .

[0031] When the weeding device of this embodiment is working, the motor B 25 drives the rotating wheel 24 to rotate, and the rotating wheel 24 drives the swing rod 22 to swing up and down through the eccentric shaft 241. During the swinging process, the guide sleeve 261 provides a swing guide for the swing rod 22 under the action of the rotating shaft 26, so that the shovel head 23 at the lower end of the swing rod 22 swings back and forth in a fixed arc, thereby realizing the weeding action, avoiding the problem that the weed roots cannot be completely removed by using a rotary tillage roller, and improving the weeding effect between sesame rows.

Claims

1. A multi-row weeding device with automatic steering function, characterized by: It includes a square frame bracket and several weeding mechanisms installed side by side on the bottom surface of the square frame bracket. A support is provided in the middle of the square frame bracket, and a vertical support shaft is provided in the center of the support. The upper end of the vertical support shaft is rotatably connected to the middle of the mobile frame. A driving mechanism for driving the square frame bracket to rotate freely horizontally is provided on the mobile frame.

2. A multi-row weeding device with automatic steering function according to claim 1, characterized in that: The driving mechanism includes an electric motor, a driving gear and a driven gear meshing with each other, the electric motor is fixedly connected to the mobile frame, the driven gear is fixedly connected to the middle of the vertical support shaft, and the driving gear is fixedly connected to the output shaft of the electric motor.

3. A multi-row weeding device with automatic steering function according to claim 1, characterized in that: The movable frame is provided with an encoder, and the input shaft of the encoder is coaxially connected with the upper end of the vertical supporting shaft.

4. A multi-row weeding device with automatic steering function according to claim 1, characterized in that: The weeding mechanism includes a square cylindrical shell, a rocker arm and a shovel head. A rotating wheel is provided at the upper part of the square cylindrical shell, an eccentric shaft is provided at the edge of the rotating wheel, a motor B is provided at the upper part of the outer wall of the square cylindrical shell to drive the rotating wheel to rotate, the upper end of the rocker arm is rotatably connected to the eccentric shaft, the lower end of the rocker arm extends out of the lower port of the square cylindrical shell, the shovel head is fixedly installed at the lower end of the rocker arm, and a guide component for providing guidance for the rocker arm is provided in the square cylindrical shell.

5. A multi-row weeding device with automatic steering function according to claim 4, characterized in that: The guide assembly comprises a rotating shaft installed in the lower part of a square cylindrical shell, the outer end of the rotating shaft is fixedly connected with a guide sleeve, and the middle part of the swing rod is slidably sleeved in the guide sleeve.

6. A multi-row weeding device with automatic steering function according to claim 4, characterized in that: The shovel head is provided with a U-shaped sleeve, and the shovel head is connected to the lower end of the swing rod through the U-shaped sleeve and bolts.

7. A multi-row weeding device with automatic steering function according to claim 4, characterized in that: A camera is provided at the lower end of the square cylindrical shell, and the camera is located behind the shovel head.

8. The multi-row weeding device with automatic steering function according to claim 1, characterized in that: Four vertical connecting rods are arranged at the four corners of the movable frame.

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