Mechanical weeding mechanism

Abstract

The application discloses a mechanical weeding mechanism in the technical field of agricultural machinery, which comprises a rack, at least one connecting rod capable of swinging back and forth is connected to the rack, a weeding shovel is connected to the connecting rod, at least one group of weeding components I is arranged on the lower side of the weeding shovel, and the weeding component I comprises a plurality of weeding teeth I arranged in the same row.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of agricultural machinery, and particularly relates to a mechanical weeding mechanism. BACKGROUND

[0002] Weeding is an important work in field work, and in the traditional technology, weeding is usually carried out by using weeding agents, which is time-consuming, labor-intensive and high in cost. The development and use of various weeding machines have become an important tool for field weeding. The prior art discloses a patent with the name of "attached hanging type dry field weeding machine", the announcement number is TWM541193U, and the announcement date is May 11, 2017. The weeding machine comprises a weeding group, and the weeding group is composed of a walking wheel, a plow head, a weeding harrow and a harrowing claw arranged from front to back and downward. The plow head can be deeply dug into the soil by the traction of the power machine, and then the weeding harrow breaks the soil and digs the grass. The rear harrowing claw collects and drags the weeds, so that the dry field weeding is realized. This weeding technology is suitable for weeding when there is no crop in the field. However, when there is a crop in the field, weeding cannot be carried out. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art, provide a mechanical weeding mechanism, and solve the technical problem that weeding cannot be carried out when there is a crop in the field. The present application has the advantages of simple structure, good weeding effect and the like.

[0004] The purpose of the present application is achieved by a mechanical weeding mechanism, which comprises a rack, at least one connecting rod connected to the rack and capable of swinging forward and backward, and a weeding shovel connected to the connecting rod. The lower side of the weeding shovel is arranged with at least one group of weeding components I. The weeding component I comprises a plurality of weeding teeth I arranged in the same row.

[0005] In the present application, the speed of the forward and backward swinging of the connecting rod is greater than the speed of the movement of the present application. The number of connecting rods is set according to the actual situation, and each weeding shovel is in the row. The weeding tooth I comprises a weeding part I fixed to the lower side of the weeding shovel and inclined downward from front to back. The rear side of the weeding part I is connected to the weeding part II which is inclined upward and outward. The upper side of the weeding part II is fixed to the lower side of the weeding shovel. When working, the connecting rod swings forward and backward, the connecting rod drives the weeding shovel to swing forward and backward, and the weeding tooth I continuously swings forward and backward to remove the grass. The specific removal process is that the weeding part I moves forward, the weeding part I presses the grass and loosens the grass at the same time, the weeding part II moves backward, the weeding part II presses the grass and further separates the grass from the soil at the same time, and the weeding is realized. The present application has the advantages of simple structure, continuous reciprocating forward and backward movement of the weeding shovel, combination of the weeding part I and the weeding part II, continuous pressing of the grass and separation of the grass from the soil, good weeding effect, application in row weeding work, and the like.

[0006] In order to further avoid missing weeding, the lower side of the weeding shovel is further arranged with at least one group of weeding components II, which comprises a plurality of weeding teeth II arranged in the same row, and the weeding teeth I and the weeding teeth II are arranged staggered in the left-right direction.

[0007] As a further improvement of the present application, the connecting rod is connected with an intermediate rod.

[0008] In order to further realize the height adjustment of the weeding shovel, a plurality of adjustment holes are arranged in the height direction of the intermediate rod, and a connecting hole coaxial with the adjustment hole is opened on the connecting rod.

[0009] In order to further realize the reset of the connecting rod in the front-back direction, a plurality of upward springs corresponding to the connecting rod are connected to the frame, and the rear end of the upward spring is connected to the upper part of the connecting rod.

[0010] In order to further realize the reciprocating motion of the connecting rod, a transmission shaft is rotatably connected to the frame below the upward spring, a plurality of eccentric wheels are connected to the transmission shaft, the upper part of the front end of the connecting rod is in contact with the rear outer edge of the eccentric wheel, and the connecting rod below the frame and the eccentric wheel is hinged.

[0011] In order to further realize the rotation of the transmission shaft, a transmission box is fixedly connected to the frame, and the transmission shaft is connected to the transmission box; in this design, an input shaft is connected to the transmission box, and the walking device in front of the frame drives the rotation of the input shaft.

[0012] In order to further improve the reliability of the rotation of the transmission shaft, a plurality of mounting seats are connected to the frame, and the transmission shaft is rotatably connected to the mounting seat.

[0013] In order to further reduce the sliding resistance, the front end of the weeding shovel is upwardly curved, and the rear end of the weeding shovel is upwardly curved; in this design, the front part of the weeding shovel is upwardly curved, and when weeding, the weeding shovel presses the grass into the lower side of the weeding shovel, further improving the weeding effect.

[0014] In order to further improve the weeding effect, the weeding shovel comprises a horizontal part, the rear side of the horizontal part is connected with an upwardly curved connecting part, the front side of the horizontal part is connected with a downwardly curved and outwardly protruding grass pressing part, and the front side of the grass pressing part is connected with an upwardly inclined inclined part. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view of the present application.

[0016] Figure 2 It is the three-dimensional structure of the present application Figure 1 .

[0017] Figure 3 It is the three-dimensional structure of the present applicationFigure 2 .

[0018] Figure 4 is a side view of the present application.

[0019] Wherein, 1 is a grass digging shovel, 101 is an inclined part, 102 is a grass pressing part, 103 is a horizontal part, 104 is a connecting part, 2 is a connecting rod, 3 is a frame, 4 is a connecting lug, 5 is an adjusting hole, 6 is a grass digging assembly one, 601 is a grass digging tooth one, 601a is a grass digging part one, 601b is a grass digging part two, 7 is a grass digging assembly two, 701 is a grass digging tooth two, 8 is an intermediate rod, 9 is a lower tension spring, 10 is an eccentric wheel, 11 is an upper tension spring, 12 is a transmission box, 13 is an input shaft, 14 is a connecting hole. DETAILED DESCRIPTION

[0020] The present application will be further described below in conjunction with the drawings.

[0021] As Figures 1-4 shown in a mechanical weeding mechanism, comprising a frame 3, the frame 3 is connected with a plurality of forward and backward swing connecting rod 2, connecting rod 2 is connected with a grass digging shovel 1, the front end of the grass digging shovel 1 upward, the rear end of the grass digging shovel 1 upward; the grass digging shovel 1 includes a horizontal part 103, the rear side of the horizontal part 103 is connected with the upward tilt of the connecting part 104, the front side of the horizontal part 103 is connected with a downward one side bending and outward protruding grass pressing part 102, the front side of the grass pressing part 102 is connected with the upward inclined inclined part 101, the lower side of the grass digging shovel 1 is arranged with at least one group of grass digging assembly one 6, the grass digging assembly one 6 includes a plurality of grass digging tooth one 601 arranged in the same row, the connecting rod 2 is connected with an intermediate rod 8, the intermediate rod 8 is arranged in the height direction of the adjusting hole 5, the connecting rod 2 is provided with a connecting hole 14 coaxial with the adjusting hole 5; the rear end of the lower part of the connecting rod 2 is connected with a lower tension spring 9, the rear and downward inclined end of the lower tension spring 9 is connected with the upward end of the grass digging shovel 1, the grass digging shovel 1 can rotate relative to the connecting rod 2, the lower part of the intermediate rod 8 is hinged with the grass digging shovel 1.

[0022] In order to further avoid the omission of grass, the lower side of the grass digging shovel 1 is also arranged with at least one group of grass digging assembly two 7, the grass digging assembly two 7 includes a plurality of grass digging tooth two 701 arranged in the same row, the grass digging tooth one 601 and the grass digging tooth two 701 are staggered in the left and right direction.

[0023] In order to further realize the reciprocating movement of the connecting rod 2 in the front-back direction, the frame 3 in front of the connecting rod 2 is connected with a connecting lug 4 corresponding to the connecting rod 2, the connecting lug 4 is connected with an upper tension spring 11, one end of the upper tension spring 11 extending backward is connected with the upper part of the connecting rod 2, the frame 3 below the upper tension spring 11 is rotatably connected with a transmission shaft, the transmission shaft is connected with a plurality of eccentric wheels 10 corresponding to the connecting rod 2, the upper part of the front end of the connecting rod 2 is in contact with the rear outer edge of the eccentric wheel 10, and the frame 3 is hinged with the connecting rod 2 below the eccentric wheel 10; the structure for realizing the rotation of the transmission shaft is that the frame 3 is fixedly connected with a transmission box 12, and the transmission shaft is connected to the transmission box 12; the frame 3 is connected with a plurality of mounting seats, and the transmission shaft is rotatably connected to the mounting seats.

[0024] In the application, the speed of the connecting rod 2 swinging forward and backward is greater than the speed of the application running, and in the natural state, the horizontal part 103 of the weeding shovel 1 is in a horizontal state; the front side of the frame 3 is connected with a walking device suitable for walking in a paddy field, an input shaft 13 is connected on the transmission box 12, and the walking device in front of the frame drives the input shaft 13 to rotate; the advancing direction of the frame 3 is regarded as front, and the direction opposite to the advancing direction is regarded as back; the number of the connecting rods 2 is set according to the actual situation, each weeding shovel 1 is in a row, the weeding tooth one 601 and the weeding tooth two 701 are the same in structure, the weeding tooth one 601 comprises a weeding part one 601a fixed on the lower side of the weeding shovel 1 and inclined downward from front to back, a weeding part two 601b connected with the rear side of the weeding part one 601a and inclined upward and outward, and the upper side of the weeding part two 601b is fixed on the lower side of the weeding shovel 1; during work, the inclined part 101 first presses the grass downward, and the grass pressing part 102 further presses the grass into the weeding tooth one 601; the transmission box 12 operates, the transmission shaft rotates, the transmission shaft drives the rotation of the eccentric wheel 10, the eccentric wheel 10 drives the reciprocating swing of the connecting rod 2 forward and backward, the connecting rod 2 drives the weeding shovel 1 to swing forward and backward, and the weeding tooth one 601 and the weeding tooth two 701 continuously swing forward and backward to remove the grass; the specific removal process is that the weeding part one 601a moves forward, the weeding part one 601a presses the grass while loosening the grass, the weeding part two 601b moves backward, the weeding part two 601b further separates the grass from the soil while pressing the grass, and the weeding is realized; the weeding effect is good, the weeding tooth two 701 weeds on the basis of the weeding tooth one 601, so that the missed weeding is avoided, and the weeding effect is further improved; during the weeding process, when an obstacle is encountered, the inclined part 101 first contacts the obstacle, the obstacle pushes against the inclined part 101, the weeding shovel 1 rotates upward and backward, so that the weeding tooth is separated from the ground, and when the weeding shovel 1 passes the obstacle, the weeding shovel 1 is reset under the action of the downward pulling spring 9, so that the direct impact of the weeding shovel 1 on the obstacle is avoided, the weeding tooth is protected, and the service life thereof is prolonged; the application has a simple structure, the continuous reciprocating forward and backward movement of the weeding shovel 1 is realized through the combined arrangement of the eccentric wheel 10 and the upward pulling spring 11, the structure is ingenious, the combination of the weeding part one 601a and the weeding part two 601b and the reciprocating forward and backward movement thereof continuously press the grass and separate the grass from the soil, and the weeding effect is good; the application can be applied to the work of row weeding, and is especially suitable for the work of paddy field weeding.

[0025] The application is not limited to the above-mentioned embodiments, and the weeding assembly one 14 can be provided with one group, three groups, four groups or the like, and the number of the weeding assembly one 14 and the weeding assembly two 13 is set according to actual needs; on the basis of the technical scheme disclosed in the application, the skilled in the art can make some replacements and deformations of some technical features without creative labor according to the disclosed technical content, and the replacements and deformations are within the protection scope of the application.

Claims

1. A mechanical weeding mechanism, comprising a frame, characterized in that: At least one swingable connecting rod is connected to the frame. A weeding shovel is connected to the connecting rod. The forward-facing end of the weeding shovel curves upward, and the rearward-facing end also curves upward. The weeding shovel includes a horizontal part. The rear side of the horizontal part is connected to an upwardly curved connecting part. The front side of the horizontal part is connected to a downwardly curved, outwardly protruding grass-pressing part. The forward-facing side of the grass-pressing part is connected to an upwardly inclined part. A pull spring is connected to the rearward-facing end of the lower part of the connecting rod. The rearward-protruding, downwardly inclined end of the pull spring is connected to the upward-facing end of the weeding shovel. The weeding shovel can rotate relative to the connecting rod. The connecting rod is internally connected to... The machine has a central rod, the lower part of which is hinged to a weeding shovel. At least one weeding assembly is arranged on the lower side of the weeding shovel, and the weeding assembly includes several weeding teeth arranged in the same row. Several upper tension springs corresponding to the connecting rods are connected to the frame. The rearward end of the upper tension spring is connected to the upper part of the connecting rod. A drive shaft is rotatably connected to the frame below the upper tension spring. Several eccentric wheels are connected to the drive shaft. The upper part of the forward end of the connecting rod contacts the rearward outer edge of the eccentric wheel. The frame is hinged to the connecting rod below the eccentric wheel. A transmission box is fixedly connected to the frame, and the drive shaft is connected to the transmission box.

2. The mechanical weeding mechanism according to claim 1, characterized in that: The lower side of the weeding shovel is also provided with at least one set of weeding components two, which includes several weeding teeth two arranged in the same row. The weeding teeth one and weeding teeth two are staggered in the left and right direction.

3. The mechanical weeding mechanism according to claim 1, characterized in that: The intermediate rod has several adjustment holes arranged in the height direction, and the connecting rod has a connecting hole that is coaxial with the adjustment holes.

4. The mechanical weeding mechanism according to claim 1, characterized in that: The frame is connected to several mounting bases, and the drive shaft is rotatably connected to the mounting bases.

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