Soil shifting and digging mechanism for green Chinese onion harvester

Abstract

The invention discloses a soil-shifting digging mechanism for a green Chinese onion harvester, and relates to the technical field of green Chinese onion harvesting equipment, the soil-shifting digging mechanism comprises a T-shaped rod, two coulter blades, a digging shovel, a first box body, a second box body, a connecting plate, a driving mechanism, a reciprocating sliding mechanism, a rotating mechanism, a transmission mechanism and a movable mechanism, the two first box bodies are driven by the reciprocating sliding mechanism to slide, the digging shovel is driven by the moving mechanism to move, the moving mechanism is driven by the transmission mechanism to work, the reciprocating sliding mechanism can drive coulter blades on the two sides of the lower portion of the device to conduct reciprocating soil shifting work, and reciprocating rotation is conducted under synchronous work of the rotating mechanism; the movable mechanism can also move the digging shovel up and down in a reciprocating mode while working along with equipment, the digging efficiency is improved, and meanwhile the digging shovel is prevented from making contact with the soil for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of green onion harvesting equipment, and in particular to a soil digging mechanism for a green onion harvester. Background Art

[0002] Green onions are widely planted in my country and play an important role in my country's vegetable industry. The cultivation of green onions not only provides farmers with considerable income, but also promotes the development of the agricultural economy and related industrial chains. At the same time, green onions are also one of the important agricultural products in my country's export trade, contributing to expanding the international market and increasing foreign exchange earnings.

[0003] In the prior art, when the existing green onion harvester is working, the soil-moving device in front is generally stick-shaped, which is easy to compact and damage the soil, and even has the risk of breaking in hard areas. The blade and shape of the traditional digging shovel are not suitable for the soil, resulting in increased digging resistance. This not only reduces the digging efficiency, but also may increase energy consumption and mechanical wear.

[0004] Therefore, how to provide a reciprocating motion mechanism of a green onion harvester that can reduce soil damage by digging, reduce resistance by excavating, has strong adaptability and high efficiency is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of the above problems, the present invention provides a soil-moving and digging mechanism for a green onion harvester, which solves the technical problems of soil compaction and damage caused by soil-moving of existing green onion harvesters, large resistance of the digging shovel and low adaptability.

[0006] The technical solution adopted by the present invention is: comprising a T-bar, a connecting shaft, a wheel frame, a roller, a plow blade, a digging shovel, a first box body, a second box body, a connecting plate, a driving mechanism, a reciprocating sliding mechanism, a rotating mechanism, a transmission mechanism, and a movable mechanism; Connecting shafts are fixedly provided on both sides of the vertical rod ends of the T-shaped rod, and wheel frames are fixedly provided on the outer ends of the two connecting shafts; Two rollers are rotatably provided at the lower ends of the two wheel frames; Two first boxes are movably provided at the lower ends of the cross bars of the T-shaped bars, and a placing table is fixedly provided at the lower parts of the front walls of the two first boxes; A second box is fixedly provided at the upper end of the two placement tables, and the two first boxes are connected to the second box adjacent thereto. The outer sides of the front walls of the two second boxes are respectively provided with plow blades, and the two plow blades are driven to rotate by a rotating mechanism; The two first boxes are driven to slide by a reciprocating sliding mechanism; The rotating mechanism is driven to work by the reciprocating sliding mechanism; A driving mechanism is provided at the middle of the upper end of the crossbar of the T-shaped bar, and the reciprocating sliding mechanism is driven to work by the driving mechanism; Connecting plates are fixedly provided at the lower parts of the two ends of the crossbar of the T-shaped bar, and a same digging shovel is movably provided under the two connecting plates, and the digging shovel is driven to move by a movable mechanism; The upper ends of the two connecting plates are provided with a same transmission mechanism, and the movable mechanism is driven to work by the transmission mechanism; The transmission mechanism is driven to work by the reciprocating sliding mechanism.

[0007] Further, the rotating mechanism comprises a first connecting frame, a first spur gear, a second spur gear, and a rectangular connecting rod; First connecting frames are fixedly provided on the upper and lower sides of the front walls of the two second boxes respectively, and a first rotating shaft is rotatably provided in the two first connecting frames located on the same second box; The lower ends of the two first rotating shafts are respectively rotated to penetrate the two first connecting frames located below and are fixed with rectangular connecting rods; The lower ends of the inner walls of the two rectangular connecting rods are respectively fixed with connecting blocks, and the two plow blades are respectively fixed on the front walls of the connecting blocks close thereto; The outer walls of the two first rotating shafts are respectively provided with first spur gears, and the two first spur gears are respectively movably provided on the front side of the second box body close thereto; The rear sides of the two first spur gears are respectively meshed with second spur gears, and the two second spur gears are respectively rotatably arranged in the first housing close to the two second spur gears via second rotating shafts; The two second rotating shafts are both driven to rotate by the reciprocating sliding mechanism.

[0008] Further, the reciprocating sliding mechanism comprises a first connecting rod, a second connecting rod, a first rectangular sliding block, and a vertical plate; Two first rectangular through slots are respectively provided at the upper ends of the cross bars of the T-shaped bars, and first rectangular sliding blocks are respectively slidably provided in the two first rectangular through slots; The top ends of the two second rotating shafts rotate through the first rectangular sliders close to them to fix the first ends of the second connecting rods. The middle part of the upper end of the crossbar of the T-shaped bar is rotatably provided with the middle end of the first connecting rod via the third rotating shaft; The two ends of the first connecting rod are respectively hinged to the second end of the second connecting rod adjacent thereto; The lower ends of the two first rectangular sliding blocks slide through the first rectangular through slots matched therewith and are fixedly connected to the first box body close thereto through a vertical plate; The third rotating shaft is driven to rotate by the driving mechanism; The two first rectangular sliding blocks respectively drive the transmission mechanism to work by sliding.

[0009] Further, the driving mechanism is a driving motor; The driving motor is fixedly arranged at the middle part of the upper end of the cross bar of the T-shaped bar, and the two first rectangular through slots are respectively arranged at two sides of the driving motor; The output shaft of the driving motor is fixedly arranged on the third rotating shaft; The driving motor is a stepping motor capable of forward and reverse rotation.

[0010] Further, the movable mechanism comprises a disc, a third connecting rod, a fourth connecting rod, a fifth connecting rod, and a sixth connecting rod; A first mounting block is fixedly provided at the lower rear end of the two connecting plates, respectively, and a disc is rotatably provided on the outer wall of the two first mounting blocks through a fourth rotating shaft, and a first connecting shaft is fixedly provided at an eccentric position of the outer wall of the two discs; The first ends of the third connecting rods are rotatably provided on the outer walls of the two first connecting shafts, and the second ends of the two third connecting rods are rotatably provided with fourth connecting rods; The second connecting shafts are fixedly disposed on the outer walls of the upper ends of the two fourth connecting rods, and the second ends of the two third connecting rods are rotatably sleeved on the outer walls of the second connecting shafts adjacent thereto. A second mounting block is fixedly provided at the lower front end of the two connecting plates, and a third connecting shaft is fixedly provided on the inner walls of the two second mounting blocks, and the first end of the sixth connecting rod is rotatably sleeved on the outer walls of the two third connecting shafts, and a fourth connecting shaft is fixedly provided on the inner walls of the two fourth connecting rods; The second ends of the two sixth connecting rods are respectively rotatably sleeved on the outer wall of the fourth connecting shaft close thereto; The lower ends of the two fourth connecting rods are respectively movably provided with fifth connecting rods, and the two fifth connecting rods are movably limited in the fourth connecting rods close thereto through the adjustment components; A same mounting shaft is fixedly arranged between the lower ends of the two fifth connecting rods, and the digging shovel is fixedly arranged at the middle of the front wall of the mounting shaft; The two fourth rotating shafts are both driven to rotate by the transmission mechanism.

[0011] Further, the transmission mechanism comprises a third spur gear, a rack plate, a second rectangular slider, a sliding plate, a seventh connecting rod, and a second connecting frame; Two second rectangular through slots are respectively provided on the rear wall of the horizontal bar of the T-shaped bar, and the two second rectangular through slots are provided on both sides of the vertical bar of the T-shaped bar; The two second rectangular through grooves are respectively connected to the first rectangular through grooves adjacent thereto; A second rectangular sliding block is slidably disposed in each of the two second rectangular through grooves, and the two second rectangular sliding blocks are fixedly disposed between the first rectangular sliding blocks adjacent thereto. A second connecting frame is fixedly provided on the front walls of the two second rectangular sliding blocks respectively; The two second connecting frames are respectively slidably arranged between the second rectangular through slots adjacent thereto; The first ends of the seventh connecting rods are rotatably arranged in the two second connecting frames respectively; The upper ends of the two connecting plates are respectively slidably provided with sliding plates; The upper ends of the two sliding plates are respectively fixed with fifth connecting shafts, and the second ends of the two seventh connecting rods are respectively rotatably sleeved on the outer walls of the fifth connecting shafts close thereto; The lower ends of the two sliding plates are respectively fixed with rack plates, and the two rack plates are respectively movably arranged on the inner side walls of the connecting plates close thereto; The two fourth rotating shafts rotate and penetrate the first mounting block close to them to fix third spur gears, and the two third spur gears are meshed with the rack plates close to them respectively.

[0012] Furthermore, the adjustment assembly includes a spring telescopic column and a limiting hole; The lower ends of the two fourth connecting rods are respectively provided with rectangular through holes, and the two fifth connecting rods are respectively slidably arranged in the rectangular through holes matched therewith; The outer walls of the two fifth connecting rods are respectively provided with spring telescopic columns, and the outer walls of the two fourth connecting rods are respectively provided with a plurality of limiting holes that cooperate with the spring telescopic columns; The two spring telescopic columns are respectively detachably arranged in one of the matching limiting holes.

[0013] Advantages of the present invention: The reciprocating sliding mechanism of the present invention can drive the plow blades on both sides below the equipment to perform reciprocating soil excavation, and can rotate reciprocatingly under the synchronous operation of the rotating mechanism while reciprocating soil excavation. Compared with the traditional stick-type soil excavator bar, it can effectively avoid compaction and damage to the soil, and also avoid the problem of easy breakage of the rigid stick-type soil excavator bar. The movable mechanism of the present invention can also make the excavating shovel move back and forth up and down as the equipment works, which increases the excavation efficiency while avoiding the problem of increased energy consumption and mechanical wear caused by the excavating shovel in long-term contact with the soil.

[0014] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the active mechanism of the present invention; Figure 3 It is a schematic diagram of the installation of the T-bar and the wheel frame of the present invention; Figure 4 It is a schematic diagram of the working principle of the rotating mechanism of the present invention; Figure 5 It is a schematic diagram of the working principle of the transmission mechanism of the present invention; Figure 6 It is a schematic diagram of the overall structure of the transmission mechanism of the present invention; Figure 7 It is a schematic diagram of the working principle of the movable mechanism of the present invention; Figure 8 It is a schematic diagram of the working principle of the regulating assembly of the present invention; Fig. 9 It is a schematic diagram of the principle of the linkage between the rotating mechanism and the reciprocating sliding mechanism of the present invention.

[0017] Reference numerals: 1 is a T-bar, 2 is a plow blade, 3 is a fourth connecting rod, 4 is a third connecting rod, 5 is a disc, 6 is a connecting plate, 7 is a fifth connecting rod, 8 is a digging shovel, 9 is a mounting shaft, 10 is a connecting shaft, 11 is a wheel frame, 12 is a roller, 13 is a driving motor, 14 is a first connecting rod, 15 is a second connecting rod, 16 is a first rectangular slider, 17 is a rectangular connecting rod, 18 is a second box body, 19 is a first spur gear, 20 is a second spur gear, 21 is a second rectangular slider, 22 is a seventh connecting rod, 23 is a first box body, 24 is a sliding plate, 25 is a rack plate, 26 is a third spur gear, and 27 is a sixth connecting rod; 101 is a first rectangular through slot, 1011 is a second rectangular through slot; 301 is a limiting hole; 601 is the second mounting block, 601 is the first mounting block; 701 is a spring telescopic column; 1601 is a vertical plate; 1801 is a first connecting frame; 2101 is a second connecting frame; 2301 is a placement table. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In the description of the invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0020] refer to Figures 1 to 9 , a soil excavation mechanism for a green onion harvester, comprising a T-bar 1, a connecting shaft 10, a wheel frame 11, a roller 12, a plow blade 2, a digging shovel 8, a first box body 23, a second box body 18, a connecting plate 6, a driving mechanism, a reciprocating sliding mechanism, a rotating mechanism, a transmission mechanism, and a movable mechanism; Connecting shafts 10 are fixedly mounted on both sides of the vertical rod ends of the T-shaped rod 1, and wheel frames 11 are fixedly mounted on the outer ends of the two connecting shafts 10; Two rollers 12 are rotatably mounted on the lower ends of the two wheel frames 11. The wheel frames 11 on both sides are used to mount the rollers 12. The rollers 12 are used to support the ground auxiliary equipment to move. The wheel frames 11 are connected to the agricultural machinery equipment through external traction parts. By starting the agricultural machinery equipment, such as an agricultural tractor, the equipment can be driven to move. Two first boxes 23 are movably mounted on the lower ends of the crossbars of the T-shaped bar 1, and a placing table 2301 is fixedly mounted on the lower parts of the front walls of the two first boxes 23; The upper ends of the two placement tables 2301 are respectively fixed with the second boxes 18, and the two first boxes 23 are respectively connected to the second boxes 18 adjacent thereto, and the placement tables 2301 are used to install the second boxes 18, and the second boxes 18 are used to install the plow blades 2 described later; A plow blade 2 is movably mounted on the outer sides of the front walls of the two second boxes 18, and the two plow blades 2 are driven to rotate by a rotating mechanism; The two first boxes 23 are driven to slide by the reciprocating sliding mechanism. The two first boxes 23 start to reciprocate under the drive of the reciprocating sliding mechanism and drive the second boxes 18 fixed thereto to start to reciprocate during the reciprocating movement. The second boxes 18 on both sides can drive the two plow blades 2 to reciprocate to realize soil excavation through reciprocating movement. The rotating mechanism is driven by the reciprocating sliding mechanism. As the plow blades 2 on both sides slide back and forth, the rotating mechanism starts to work at the same time to drive the plow blades 2 on both sides to rotate, so that the plow blades 2 on both sides can also rotate during the sliding process, thereby increasing the area of ​​soil removal. A driving mechanism is installed at the middle of the upper end of the crossbar of the T-bar 1, and the reciprocating sliding mechanism is driven to work by the driving mechanism; The lower parts of the two ends of the crossbar of the T-shaped bar 1 are fixedly installed with connecting plates 6, and the same digging shovel 8 is movably installed under the two connecting plates 6. The digging shovel 8 is driven by a movable mechanism. The digging shovel 8 is square, and the blade surface is bent inward at a certain arc. There are bars on the back of the blade. The digging shovel 8 can be lifted up and down under the drive of the movable mechanism. The shovel surface of the soil-entering part is trapezoidal, gradually narrowing from the blade to the back, and there is a shovel ridge in the middle, so as to achieve the purpose of crushing the soil of the onion ridge during the excavation process. The lifting part is bent inward at a certain arc, which has the effect of lifting the onion and the soil upward, and the digging shovel can shake up and down when working; The upper ends of the two connecting plates 6 are provided with a same transmission mechanism, and the movable mechanism is driven to work by the transmission mechanism; The transmission mechanism is driven by the reciprocating sliding mechanism.

[0021] The rotating mechanism comprises a first connecting frame 1801, a first spur gear 19, a second spur gear 20, and a rectangular connecting rod 7; First connecting frames 1801 are fixedly installed on the upper and lower sides of the front walls of the two second boxes 18, respectively. The same first rotating shaft is rotatably installed in the two first connecting frames 1801 located on the same second box 18; The lower ends of the two first rotating shafts rotate and penetrate the two first connecting frames 1801 located below and are fixed with rectangular connecting rods 17; The lower ends of the inner walls of the two rectangular connecting rods 17 are respectively fixed with connecting blocks, and the two plow blades 2 are respectively fixedly installed on the front walls of the connecting blocks close thereto; The outer walls of the two first rotating shafts are respectively fixedly mounted with first spur gears 19, and the two first spur gears 19 are respectively movably mounted on the front side of the second box body 18 close thereto; The rear sides of the two first spur gears 19 are respectively meshed with second spur gears 20, and the two second spur gears 20 are respectively rotatably mounted in the first box body 23 close thereto via the second rotating shaft; The two second rotating shafts are driven to rotate by the reciprocating sliding mechanism, and the two second rotating shafts start to rotate reciprocatingly under the drive of the reciprocating sliding mechanism. During the reciprocating rotation, the two second rotating shafts respectively drive the second spur gears 20 coaxially fixed therewith to start reciprocating rotation. The two second spur gears 20 respectively drive the first spur gears 19 meshing therewith to start reciprocating rotation through the reciprocating rotation. The first spur gears 19 on both sides respectively drive the first rotating shaft coaxially installed therewith to start rotating through the reciprocating rotation. Since the two first rotating shafts are respectively clamped in the two first connecting frames 1801, the two first rotating shafts will not fall off during the rotation. During the reciprocating rotation, the first rotating shafts on both sides can drive the rectangular connecting rods 17 fixed therewith to start reciprocating rotation. The rectangular connecting rods 17 on both sides can drive the plow blades 2 installed therewith to rotate while reciprocating.

[0022] The reciprocating sliding mechanism comprises a first connecting rod 14, a second connecting rod 15, a first rectangular sliding block 16, and a vertical plate 1601; Two first rectangular through slots 101 are respectively provided at the upper end of the crossbar of the T-shaped bar 1, and first rectangular sliding blocks 16 are respectively slidably installed in the two first rectangular through slots 101; The top ends of the two second rotating shafts rotate through the first rectangular slider 16 adjacent thereto to fix the first end of the second connecting rod 15 thereon. The middle part of the upper end of the crossbar of the T-shaped bar 1 is rotatably mounted with the middle end of the first connecting rod 14 through the third rotating shaft; Both ends of the first connecting rod 14 are respectively hinged to the second end of the second connecting rod 15 adjacent thereto; The lower ends of the two first rectangular sliding blocks 16 slide through the first rectangular through slots 101 matched therewith and are fixedly connected to the first box body 23 adjacent thereto through the vertical plate 1601; The third rotating shaft is driven to rotate by the driving mechanism; The two first rectangular sliders 16 work through the sliding drive transmission mechanism respectively, and the third rotating shaft starts to reciprocate under the drive mechanism's drive, and drives the first connecting rod 14 coaxially installed therewith to start reciprocating during the reciprocating rotation. The first connecting rod 14 can respectively drive the second connecting rods 15 on both sides to start reciprocating deflection during the reciprocating rotation. The second connecting rods 15 on both sides can respectively drive the first rectangular sliders 16 cooperating therewith to slide reciprocatingly along the first rectangular through grooves 101 on both sides during the reciprocating deflection. Since the second rotating shafts on both sides and the second connecting rods 15 close thereto are fixedly connected, the two second connecting rods 15 can drive the second rotating shafts cooperating therewith to rotate together during the deflection. Therefore, the second spur gears 20 coaxially fixedly installed therewith and the second rotating shafts on both sides will start to rotate synchronously with the sliding of the first rectangular sliders 16 on both sides.

[0023] The driving mechanism is a driving motor 13; The driving motor 13 is fixedly mounted on the middle of the upper end of the crossbar of the T-shaped bar 1, and the two first rectangular through slots 101 are respectively mounted on both sides of the driving motor 13; The output shaft of the driving motor 13 is fixedly arranged with the third rotating shaft; The driving motor 13 is a stepper motor that can rotate forward and reverse. The forward and reverse rotation angles and frequencies can be set to limit the sliding distance and sliding speed of the two first boxes 23, thereby controlling the sliding efficiency and rotation efficiency of the plow blades 2 on both sides.

[0024] The movable mechanism comprises a disc 5, a third connecting rod 4, a fourth connecting rod 3, a fifth connecting rod 7, and a sixth connecting rod 27; The lower parts of the rear ends of the two connecting plates 6 are respectively fixedly mounted with first mounting blocks 602, and the outer walls of the two first mounting blocks 602 are respectively rotatably mounted with disks 5 via fourth rotating shafts, and the outer walls of the two disks 5 are respectively fixedly mounted with first connecting shafts at eccentric positions; The first ends of the third connecting rods 4 are rotatably mounted on the outer walls of the two first connecting shafts, and the fourth connecting rods 3 are rotatably mounted on the second ends of the two third connecting rods 4; The second connecting shafts are fixedly mounted on the outer walls of the upper ends of the two fourth connecting rods 3, and the second ends of the two third connecting rods 4 are rotatably sleeved on the outer walls of the second connecting shafts close thereto. The front lower parts of the two connecting plates 6 are respectively fixedly mounted with second mounting blocks 601, the inner walls of the two second mounting blocks 601 are respectively fixedly mounted with third connecting shafts, the outer walls of the two third connecting shafts are respectively rotatably mounted with the first ends of the sixth connecting rods 27, and the inner walls of the two fourth connecting rods 3 are respectively fixedly mounted with fourth connecting shafts; The second ends of the two sixth connecting rods 27 are respectively rotatably sleeved on the outer wall of the fourth connecting shaft close thereto; The lower ends of the two fourth connecting rods 3 are movably mounted with fifth connecting rods 7, and the two fifth connecting rods 7 are movably limited in the fourth connecting rods 3 close thereto through the adjustment components; A same mounting shaft 9 is fixedly mounted between the lower ends of the two fifth connecting rods 7, and an excavating shovel 8 is fixedly mounted on the middle of the front wall of the mounting shaft 9; The two fourth rotating shafts are driven to rotate by the transmission mechanism. The two fourth rotating shafts start to rotate reciprocatingly under the drive of the transmission mechanism, and in the process of rotation, they respectively drive the disc 5 coaxially installed therewith to start rotating. In the process of rotation, the disc 5 on both sides respectively drives the third connecting rod 4 on both sides to start reciprocating deflection, that is, the first end of the third connecting rod 4 and the disc 5 make reciprocating circular motion, and the second end of the third connecting rod 4 starts to move up and down, and drives the first end of the fourth connecting rod 3 matched therewith to start moving up and down, and the second ends of the fourth connecting rod 3 on both sides limit the trajectory of the up and down motion under the pull of the sixth connecting rod 27 close to it, so that the fourth connecting rod 3 has an up and down deflection motion with a fixed trajectory. In the process of deflection, the fourth connecting rod 3 on both sides can respectively drive the two fifth connecting rods 7 to make a deflection motion with the same motion trajectory, and in the process of deflection, jointly drive the installation shaft 9 installed therebetween to start moving, and the excavating shovel 8 fixedly mounted with the installation shaft 9 can move up and down together with the installation shaft 9 at this time.

[0025] The transmission mechanism comprises a third spur gear 26, a rack plate 25, a second rectangular slider 21, a sliding plate 24, a seventh connecting rod 22, and a second connecting frame 2101; Two second rectangular through slots 1011 are respectively provided on the rear wall of the horizontal bar of the T-shaped bar 1, and the two second rectangular through slots 1011 are installed on both sides of the vertical bar of the T-shaped bar 1; The two second rectangular through grooves 1011 are respectively connected to the first rectangular through grooves 101 adjacent thereto; The second rectangular sliding blocks 21 are slidably installed in the two second rectangular through grooves 1011, respectively. The two second rectangular sliding blocks 21 are respectively fixedly arranged between the first rectangular sliding blocks 16 adjacent thereto; The second connecting frames 2101 are respectively fixedly mounted on the front walls of the two second rectangular sliding blocks 21; The two second connecting frames 2101 are respectively slidably arranged to penetrate between the second rectangular through slots 1011 adjacent thereto; The first ends of the seventh connecting rod 22 are rotatably mounted in the two second connecting frames 2101 respectively; The upper ends of the two connecting plates 6 are slidably mounted with sliding plates 24; The upper ends of the two sliding plates 24 are respectively fixedly mounted with fifth connecting shafts, and the second ends of the two seventh connecting rods 22 are respectively rotatably sleeved on the outer walls of the fifth connecting shafts close thereto; The lower ends of the two sliding plates 24 are respectively fixedly mounted with rack plates 25, and the two rack plates 25 are respectively movably mounted on the inner side walls of the connecting plates 6 adjacent thereto; The two fourth rotating shafts rotate through the first mounting block 602 adjacent thereto and are fixedly mounted with the third spur gear 26. The two third spur gears 26 are respectively meshed with the rack plate 25 adjacent thereto. Figure 5During the reciprocating sliding process, the two first rectangular sliders 16 will respectively drive the second rectangular sliders 21 fixed thereto to start sliding reciprocatingly along the second rectangular through grooves 1011. During the reciprocating sliding process, the second rectangular sliders 21 on both sides will respectively drive the second connecting frames 2101 fixed thereto to start sliding reciprocatingly. During the reciprocating sliding process, the second connecting frames 2101 on both sides will respectively drive the seventh connecting rods 22 on both sides to start deflecting forward and backward. During the forward and backward deflection, the seventh connecting rods 22 on both sides will respectively drive the sliding plates 24 on both sides to slide reciprocatingly along the upper ends of the mounting plates 6 on both sides. At this time, the rack plates 25 fixedly mounted on the two sliding plates 24 can have the ability to slide reciprocatingly. The rack plates 25 on both sides can drive the third spur gears 26 meshing therewith to start rotating reciprocatingly through reciprocating sliding, thereby enabling the fourth rotating shaft coaxially fixedly mounted with the third spur gear 26 to have the ability to rotate reciprocatingly.

[0026] The adjustment component includes a spring telescopic column 701 and a limiting hole 301; The lower ends of the two fourth connecting rods 3 are respectively provided with rectangular through holes, and the two fifth connecting rods 7 are respectively slidably installed in the rectangular through holes matched therewith; The outer walls of the two fifth connecting rods 7 are respectively provided with spring telescopic columns 701, and the outer walls of the two fourth connecting rods 3 are respectively provided with a plurality of limiting holes 301 that cooperate with the spring telescopic columns 701; The two spring telescopic columns 701 can be detachably installed in one of the matching limiting holes 301 respectively. By pressing the spring limiting columns 701 on both sides into the matching limiting holes 301, the limitations on the fifth connecting rods 7 on both sides can be contacted. By inserting the spring fiber column 701 into the limiting holes 301 at different heights, the height of the mounting shaft 9 can be adjusted so that the excavating shovel 8 can adapt to different soil environments.

[0027] Implementation method of the present invention: The connecting shaft 10 of the device is connected to the agricultural tractor through a traction piece, and the wheel frames 11 and rollers 12 on both sides are driven by starting the tractor to start pushing the T-shaped bar 1 forward, and the device is moved above the green onions to be harvested, and the stepper motor 13 is started; The output shaft of the stepper motor 13 starts to rotate and during the rotation process, the first box body 23 and the second box body 18 on both sides start to move back and forth along the crossbar of the T-shaped bar 1. The second box bodies 18 on both sides drive the plow blades 2 below to start to move back and forth to push the soil away. As the first rectangular sliders 16 on both sides reciprocate, the second rotating shaft matched therewith also starts to rotate, so that the plow blades 2 on both sides start to reciprocate during the reciprocating motion, thereby enabling the soil to be pushed to a farther position and increasing the contact area between the plow blades 2 and the soil; As the first rectangular sliders 16 on both sides move back and forth, the second rectangular sliders 21 fixed thereto also move back and forth accordingly, and in the process of movement, the seventh connecting rods 22 on both sides are driven to start reciprocating deflection. During the reciprocating deflection, the seventh connecting rods 22 on both sides will drive the rack plates 25 matched thereto to start sliding back and forth along the upper ends of the two connecting plates 6. The rack plates 25 on both sides drive the third spur gears 26 meshing therewith to start reciprocating rotation through sliding. The disc 5 coaxial with the third spur gear 26 can then start reciprocating rotation, and under the limitation of the sixth connecting rods 27 on both sides, a stable and fixed moving trajectory is provided for the mounting shaft 9. The excavating shovel 8 can then move up and down along this fixed moving trajectory, which can effectively reduce the contact time between the shovel and the soil while achieving the excavation effect, thereby increasing the life of the shovel.

[0028] The reciprocating sliding mechanism of the present invention can drive the plow blades on both sides below the equipment to perform reciprocating soil excavation, and can rotate reciprocatingly under the synchronous operation of the rotating mechanism while reciprocating soil excavation. Compared with the traditional stick-type soil excavator bar, it can effectively avoid compaction and damage to the soil, and also avoid the problem of easy breakage of the rigid stick-type soil excavator bar. The movable mechanism of the present invention can also make the excavating shovel move back and forth up and down as the equipment works, which increases the excavation efficiency while avoiding the problem of increased energy consumption and mechanical wear caused by the excavating shovel in long-term contact with the soil.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil excavation mechanism for a green onion harvester, characterized by: It comprises a T-shaped rod (1), a connecting shaft (10), a wheel frame (11), a roller (12), a plow blade (2), a digging shovel (8), a first box (23), a second box (18), a connecting plate (6), a driving mechanism, a reciprocating sliding mechanism, a rotating mechanism, a transmission mechanism, and a movable mechanism; Connecting shafts (10) are fixedly provided on both sides of the vertical rod end of the T-shaped rod (1), and wheel frames (11) are fixedly provided on the outer ends of the two connecting shafts (10); Two rollers (12) are rotatably provided at the lower ends of the two wheel frames (11); Two first boxes (23) are movably provided at the lower end of the crossbar of the T-shaped bar (1), and a placement table (2301) is fixedly provided at the lower part of the front wall of the two first boxes (23); A second box (18) is fixedly provided at the upper ends of the two placement tables (2301), and the two first boxes (23) are respectively connected to the second boxes (18) adjacent thereto; A plow blade (2) is movably provided on the outer sides of the front walls of the two second boxes (18), and the two plow blades (2) are driven to rotate by a rotating mechanism; The two first boxes (23) are driven to slide by a reciprocating sliding mechanism; The rotating mechanism is driven to work by the reciprocating sliding mechanism; A driving mechanism is provided at the middle of the upper end of the crossbar of the T-shaped bar (1), and the reciprocating sliding mechanism is driven to work by the driving mechanism; Connecting plates (6) are fixedly provided at the lower parts of the two ends of the crossbar of the T-shaped bar (1), and a same digging shovel (8) is movably provided below the two connecting plates (6), and the digging shovel (8) is driven to move by a movable mechanism; The upper ends of the two connecting plates (6) are provided with a same transmission mechanism, and the movable mechanism is driven to work by the transmission mechanism; The transmission mechanism is driven to work by the reciprocating sliding mechanism.

2. The soil excavation mechanism for the green onion harvester according to claim 1, characterized in that: The rotating mechanism comprises a first connecting frame (1801), a first spur gear (19), a second spur gear (20), and a rectangular connecting rod (17); First connecting frames (1801) are fixedly provided on the upper and lower sides of the front walls of the two second boxes (18), respectively, and a first rotating shaft is rotatably provided in the two first connecting frames (1801) located on the same second box (18); The lower ends of the two first rotating shafts are respectively rotated to penetrate the two first connecting frames (1801) located below and are fixed with rectangular connecting rods (17); A connecting block is fixedly provided at the lower end of the inner wall of the two rectangular connecting rods (17), and the two plow blades (2) are rotatably arranged on the front wall of the connecting block close thereto through a limiting member; A first spur gear (19) is fixedly sleeved on the outer walls of the two first rotating shafts, and the two first spur gears (19) are movably arranged on the front side of the second box body (18) adjacent thereto; The rear sides of the two first spur gears (19) are respectively meshed with second spur gears (20), and the two second spur gears (20) are respectively rotatably arranged in the first housing (23) adjacent thereto via second rotating shafts; The two second rotating shafts are both driven to rotate by the reciprocating sliding mechanism.

3. The soil excavation mechanism for the green onion harvester according to claim 2, characterized in that: The reciprocating sliding mechanism comprises a first connecting rod (14), a second connecting rod (15), a first rectangular sliding block (16), and a vertical plate (1601); The upper end of the crossbar of the T-shaped bar (1) is respectively provided with two first rectangular through slots (101), and first rectangular sliding blocks (16) are respectively slidably provided in the two first rectangular through slots (101); The top ends of the two second rotating shafts rotate to penetrate the first rectangular slider (16) adjacent thereto and fix the first end of the second connecting rod (15) thereto. The middle part of the upper end of the crossbar of the T-shaped bar (1) is rotatably provided with a middle end of a first connecting rod (14) via a third rotating shaft; Both ends of the first connecting rod (14) are respectively hingedly connected to the second end of the second connecting rod (15) adjacent thereto; The lower ends of the two first rectangular sliding blocks (16) slide through the first rectangular through slots (101) respectively matched therewith and are fixedly connected to the first box body (23) adjacent thereto via a vertical plate (1601); The third rotating shaft is driven to rotate by the driving mechanism; The two first rectangular sliding blocks (16) respectively drive the transmission mechanism to work by sliding.

4. The soil excavation mechanism for the green onion harvester according to claim 3, characterized in that: The driving mechanism is a driving motor (13); The driving motor (13) is fixedly arranged at the middle of the upper end of the crossbar of the T-shaped rod (1), and the two first rectangular through slots (101) are respectively arranged on both sides of the driving motor (13); The output shaft of the driving motor (13) is fixedly arranged on the third rotating shaft; The driving motor (13) is a stepping motor that can rotate forward and reverse.

5. The soil excavation mechanism for the green onion harvester according to claim 3, characterized in that: The movable mechanism comprises a disc (5), a third connecting rod (4), a fourth connecting rod (3), a fifth connecting rod (7), and a sixth connecting rod (27); A first mounting block (602) is fixedly provided at the lower rear end of each of the two connecting plates (6); a disc (5) is rotatably provided on the outer walls of each of the two first mounting blocks (602) via a fourth rotating shaft; and a first connecting shaft is fixedly provided at an eccentric position on the outer walls of each of the two discs (5); The first ends of the third connecting rods (4) are rotatably mounted on the outer walls of the two first connecting shafts, and the second ends of the two third connecting rods (4) are rotatably mounted with fourth connecting rods (3); A second connecting shaft is fixedly mounted on the outer wall of the upper end of each of the two fourth connecting rods (3), and the second ends of the two third connecting rods (4) are rotatably sleeved on the outer wall of the second connecting shaft adjacent thereto. A second mounting block (601) is fixedly provided at the lower front end of each of the two connecting plates (6), a third connecting shaft is fixedly provided on the inner wall of each of the two second mounting blocks (601), the first end of a sixth connecting rod (27) is rotatably sleeved on the outer wall of each of the two third connecting rods, and a fourth connecting shaft is fixedly provided on the inner wall of each of the two fourth connecting rods (3); The second ends of the two sixth connecting rods (27) are respectively rotatably sleeved on the outer wall of the fourth connecting shaft adjacent thereto; A fifth connecting rod (7) is movably provided at the lower ends of the two fourth connecting rods (3), and the two fifth connecting rods (7) are movably limited in the fourth connecting rod (3) adjacent thereto by means of an adjustment component; A common mounting shaft (9) is fixedly disposed between the lower ends of the two fifth connecting rods (7), and the digging shovel is fixedly disposed at the middle portion of the front wall of the mounting shaft (9); The two fourth rotating shafts are both driven to rotate by the transmission mechanism.

6. The soil excavation mechanism for the green onion harvester according to claim 5, characterized in that: The transmission mechanism comprises a third spur gear (26), a rack plate (25), a second rectangular slider (21), a sliding plate (24), a seventh connecting rod (22), and a second connecting frame (2101); Two second rectangular through slots (1011) are respectively provided on the rear wall of the horizontal bar of the T-shaped bar (1), and the two second rectangular through slots (1011) are provided on both sides of the vertical bar of the T-shaped bar (1); The two second rectangular through grooves (1011) are respectively connected to the first rectangular through grooves (101) adjacent thereto; A second rectangular sliding block (21) is slidably disposed in each of the two second rectangular through grooves (1011), and the two second rectangular sliding blocks (21) are fixedly disposed between each of the first rectangular sliding blocks (16) adjacent thereto; A second connecting frame (2101) is fixedly provided on the front walls of the two second rectangular sliding blocks (21) respectively; The two second connecting frames (2101) are respectively slidably arranged to penetrate the second rectangular through slots (1011) adjacent thereto; The first ends of the seventh connecting rod (22) are rotatably disposed in the two second connecting frames (2101) respectively; A sliding plate (24) is slidably provided on the upper ends of the two connecting plates (6); A fifth connecting shaft is fixedly mounted on the upper ends of the two sliding plates (24), and the second ends of the two seventh connecting rods are rotatably sleeved on the outer walls of the fifth connecting shafts adjacent thereto; Rack plates (25) are fixedly provided at the lower ends of the two sliding plates (24), and the two rack plates (25) are movably provided on the inner side walls of the connecting plates (6) adjacent thereto; The two fourth rotating shafts respectively rotate and penetrate the first mounting block (602) adjacent thereto, on which a third spur gear (26) is fixedly provided, and the two third spur gears (26) are respectively meshed with the rack plate (25) adjacent thereto.

7. The soil excavation mechanism for the green onion harvester according to claim 5, characterized in that: The adjustment component comprises a spring telescopic column (701) and a limiting hole (301); The lower ends of the two fourth connecting rods (3) are respectively provided with rectangular through holes, and the two fifth connecting rods (7) are respectively slidably arranged in the rectangular through holes matched therewith; The outer walls of the two fifth connecting rods (7) are respectively provided with spring telescopic columns (701), and the outer walls of the two fourth connecting rods (3) are respectively provided with a plurality of limiting holes (301) that cooperate with the spring telescopic columns (701); The two spring telescopic columns (701) are respectively detachably arranged in one of the matching limiting holes (301).

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