A seed drill

Abstract

The present invention provides a seeder, which comprises: a fixed beam, a seed box, a seed meter, a profiling bracket, a profiling boat, a hanging frame, a ground ridger and a driving mechanism, wherein the seed box, the seed meter, the profiling bracket, the hanging frame, the ground ridger and the driving mechanism are fixed on the fixed beam, a discharge port of the seed box is docked with a feed port of the seeder, the profiling boat is fixed to one end of the profiling bracket away from the fixed beam, one end of the hanging frame is fixed to the fixed beam, and the other end is fixed to an external device, the ground ridger is located below the seed meter, the driving mechanism is connected to the seed meter to drive the seed meter to meter seeds, thereby realizing mechanized sowing, which can effectively reduce manual participation and improve work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of crop sowing, and in particular to a seeder. Background Art

[0002] When cultivating crops, seeds need to be planted in the farmland, and after later cultivation, crops will grow.

[0003] However, due to economic and other factors, some areas still use very primitive manual sowing methods to spread seeds manually.

[0004] This method of sowing is inefficient and requires a lot of manpower. Summary of the invention

[0005] The present invention provides a seeder, which can realize mechanized sowing, effectively reduce manual participation and improve operation efficiency.

[0006] The solution of the present invention to solve the above technical problems is as follows:

[0007] A seed drill, comprising:

[0008] A fixed beam, a seed box, a seed meter, a profiling bracket, a profiling boat, a hanging frame, a ground ridger and a driving mechanism, wherein the seed box, the seed meter, the profiling bracket, the hanging frame, the ground ridger and the driving mechanism are fixed on the fixed beam, the discharge port of the seed box is docked with the feed port of the seed meter, the profiling boat is fixed to one end of the profiling bracket away from the fixed beam, one end of the hanging frame is fixed to the fixed beam, and the other end is fixed to an external device, the ground ridger is located below the seed meter, and the driving mechanism is connected to the seed meter to drive the seed meter to meter seeds.

[0009] Furthermore, the fixed beam includes a connecting beam and a bearing beam, the connecting beam is fixed to the suspension frame, the bearing beam is fixed on the connecting beam, a plurality of fixing seats are provided on the bearing beam, the position of the fixing seats on the bearing beam is adjustable, the seed box is fixed on the fixing seats, the seed box includes an outer box body, an outer box body quick fixing part, and a seed discharge part, the outer box body quick fixing part is fixed on the fixed beam, the seed discharge part is arranged in the outer box body, and the discharge port of the seed discharge part is connected with the feed port of the seed meter.

[0010] Furthermore, the outer box body is a box body without a cover on the upper end, and has a accommodating space inside. The seed discharge component is fixed on the inner wall of the outer box body. The seed discharge component includes a motor, a rotating disk, a driving rod and an outer cover. One end of the driving rod is fixed to the rotating disk, and the other end is fixed to the movable end of the motor. The outer cover is arranged on the motor and the driving rod. A rotating channel that only allows the rotating disk to rotate is provided between the outer cover and the abutment table. The rotating disk partially protrudes from the outer cover. A plurality of through holes are provided on the rotating disk. The diameters of the through holes and the seed channel match the seed diameter. At the same time, only one through hole is connected to the seed channel, and the side of the rotating disk away from the driving rod is in contact with the abutment table.

[0011] Furthermore, the seed metering device includes a seed metering device body and a rotating wheel, the seed metering device body is fixed on the fixed beam, a columnar space matching the rotating wheel is provided inside the seed metering device body, the rotating wheel is movably arranged in the columnar space, a seed entry through hole connected to the columnar space is provided on one end of the seed metering device body close to the outer box body, and a seed discharge through hole connected to the columnar space is provided on one end of the seed metering device body away from the outer box body.

[0012] Furthermore, the seed metering device also includes a seed protection plate, which includes a first side plate, a second side plate, a third side plate and a sliding baffle. The two side edges of the second side plate in the length direction are respectively fixed to the first side plate and the third side plate. The first side plate and the third side plate are arranged opposite to each other and fixed to the main body of the seed metering device. The first side plate and the third side plate are symmetrically provided with a plurality of sliding grooves, and the side edges of the sliding baffle are movably embedded in the sliding grooves.

[0013] Furthermore, the contoured bracket includes a main bracket, a first movable bracket, and a second movable bracket. One end of the main bracket is fixed to the fixed beam, and the other end is extended to form a hinged portion. The middle part of the first movable bracket is hinged to the hinged portion, one end of the second movable bracket is hinged to one end of the first movable bracket, and the other end of the second movable bracket is fixed to the contoured boat. A rotation angle detection device is provided at the hinge position between the hinged portion and the first movable bracket.

[0014] Furthermore, the contoured boat includes a larger end and a smaller end, the smaller end of the contoured boat faces the forward direction of the seeder, and the contoured boat has an arc-shaped transition surface facing the ground from the smaller end to the larger end. The contoured boat includes a fixing plate, an airbag group and an outer protective cover, the airbag group is detachably arranged on the fixing plate, and the outer protective cover is arranged on the outer surface of the airbag group.

[0015] Furthermore, the suspension frame includes a fixed beam connecting frame, a lifting cylinder and an external connecting frame. The external connecting frame is fixed to an external device. The lifting cylinder is fixed to the external connecting frame. The movable end of the lifting cylinder is telescopic in the vertical direction and connected to one end of the fixed beam connecting frame, and the other end is connected to the fixed beam. The telescopic movement of the lifting cylinder drives the fixed beam connecting frame to rise and fall, thereby driving the fixed beam to rise and fall.

[0016] Furthermore, the leveling ground ridger includes a hull having an arc-shaped bottom surface, a plurality of wedge-shaped portions are arranged on the arc-shaped bottom surface, the wedge-shaped portions have a smaller end and a larger end along the length direction, and the smaller end of the wedge-shaped portion faces the forward direction of the leveling ground ridger.

[0017] Furthermore, the driving mechanism includes a driving motor, a motor fixing frame, a transmission rod, a transmission bevel gear and a driving bevel gear, the motor fixing frame is fixed on the fixed beam, the fixed end of the driving motor is fixed on the motor fixing frame, the driving bevel gear is fixed to the movable end of the driving motor, the transmission rod is fixed to the plurality of rotating wheels, and the transmission bevel gear is fixed on the transmission rod and meshes with the driving bevel gear.

[0018] The present invention is provided with a fixed beam, a seed box, a seed meter, a profiling bracket, a profiling boat, a hanging frame, a ground leveling ridger and a driving mechanism. The seed box stores seeds, the seed meter is connected to the outlet of the seed box, the seeder moves along the ground, and the driving mechanism drives the seed meter to plant seeds, which can effectively reduce manual participation and improve work efficiency.

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 It is the structural schematic diagram of the seed drill;

[0022] Figure 2 It is a structural schematic diagram of the seed drill from another angle;

[0023] Figure 3 for Figure 1 A top view of the middle fixed beam;

[0024] Figure 4 for Figure 1 Schematic diagram of the cross section of the fixed beam;

[0025] Figure 5 for Figure 2 Schematic diagram of the structure of the quick fixing parts of the middle and outer box;

[0026] Figure 6 for Figure 2 A schematic diagram of the structure of the middle and outer box quick fixing parts from another angle;

[0027] Figure 7 for Figure 1 The structural diagram of the seed box;

[0028] Figure 8 for Figure 1 A schematic cross-sectional view of a middle seed meter;

[0029] Fig. 9 for Figure 8 A schematic diagram of the structure of the rotating wheel;

[0030] Fig.10 for Figure 1 Schematic diagram of the structure of the middle seed protection plate;

[0031] Fig.11 for Figure 1 A schematic diagram of the structure of the middle contour bracket;

[0032] Fig.12 for Fig.11 A schematic cross-sectional view of the rotating cylinder;

[0033] Fig.13 for Figure 1 Schematic diagram of the structure of the middle copy ship;

[0034] Fig.14 for Figure 1 Schematic diagram of the structure of the middle suspension frame;

[0035] Fig.15 for Figure 1 A schematic cross-sectional view of the middle suspension frame in the vertical direction;

[0036] Fig.16 for Figure 1 A schematic cross-sectional view of the middle suspension frame in the horizontal direction;

[0037] Fig.17 for Figure 1 Schematic diagram of the structure of the medium flat land ridger;

[0038] Fig.18 for Figure 1 A schematic diagram of the front view of the mid-level land ridger;

[0039] Fig.19 for Figure 1 A schematic diagram of the structure of the middle driving mechanism;

[0040] Fig. 20 for Fig.19 A schematic cross-sectional view of the middle sleeve;

[0041] Fig.21 for Figure 1 Structural schematic diagram of the middle mud surge prevention device;

[0042] Fig. 22 for Fig.21 A right side schematic diagram of the middle scraper mechanism;

[0043] Fig.23 for Fig.21 A top view of the middle scraper mechanism;

[0044] Fig.24 for Fig.21 Schematic diagram of the main view of the middle base plate. DETAILED DESCRIPTION

[0045] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0046] like Figure 1 , Figure 2 As shown, a seeder provided by an embodiment of the present invention comprises: a fixed beam 1, a seed box 2, a seed metering device 3, a profiling bracket 4, a profiling boat 5, a hanging frame 6, a ground ridging device 7 and a driving mechanism 8, wherein the seed box 2, the seed metering device 3, the profiling bracket 4, the hanging frame 6, the ground ridging device 7 and the driving mechanism 8 are fixed on the fixed beam 1, the discharge port of the seed box 2 is docked with the feed port of the seed metering device 3, the profiling boat 5 is fixed to one end of the profiling bracket 4 away from the fixed beam 1, one end of the hanging frame 6 is fixed to the fixed beam 1, and the other end is fixed to an external device, the ground ridging device 7 is located below the seed metering device 3, and the driving mechanism 8 is connected to the seed metering device 3 to drive the seed metering device 3 to meter seeds.

[0047] like Figure 3 , Figure 4As shown, the fixed beam 1 includes a connecting beam 11 and a load-bearing beam 12. The connecting beam 11 is fixed to the suspension frame 6. The load-bearing beam 12 is fixed on the connecting beam 11. A plurality of fixing seats 13 are provided on the load-bearing beam 12. The position of the fixing seats 13 on the load-bearing beam 12 is adjustable. The seed box 2 is fixed on the fixing seats 13.

[0048] The fixing seat 13 includes a U-shaped member 131, an upper pressure beam 132 and a clamping cylinder 133. One end of the upper pressure beam 132 is hinged to one end of the U-shaped member 131. The clamping cylinder 133 is fixed to the other end of the U-shaped member 131. The movable end of the clamping cylinder 133 is fixed to the other end of the upper pressure beam 132. The movable end of the clamping cylinder 133 enables the upper pressure beam 132 to have a first state of being combined with the U-shaped member 131 into a closed ring. When the upper pressure beam 132 is in the first state, the inner annular surface formed by the upper pressure beam 132 and the U-shaped member 131 matches the cross section of the load-bearing beam 12.

[0049] When the movable end of the clamping cylinder 133 is contracted to the minimum state, the U-shaped member 131 and the upper pressure beam 132 press against the load-bearing beam 12 , so that the fixing seat 13 cannot move relative to the load-bearing beam 12 .

[0050] A fixing ear 133 for fixing the seed box 2 is formed by extending from the outer surface of the U-shaped member 131 .

[0051] In order to ensure that the U-shaped member 131 , the upper pressure beam 132 and the load-bearing beam 12 are tightly connected, a plurality of annular grooves 121 are formed on the outer surface of the load-bearing beam 12 , and the annular grooves 121 match the fixing seat 13 .

[0052] Rubber is attached to the inner wall of the annular groove 121 , and when the U-shaped member 131 and the upper pressure beam 132 are clamped in the annular groove 121 , they fit with the rubber, so that the U-shaped member 131 , the upper pressure beam 132 and the load-bearing beam 12 are tightly pressed against each other.

[0053] When in use, the dry annular groove 121 on the outer surface of the load-bearing beam 12 is selected according to demand to install the fixing seat 13, so that the number and interval of the fixing seats 13 on the load-bearing beam 12 meet actual needs.

[0054] like Figure 5-Figure 7 As shown, the seed box 2 includes an outer box body 21, an outer box body quick fixing part 22, and a seed discharge part 23. The outer box body quick fixing part 22 is fixed on the fixed beam 1, and the seed discharge part 23 is arranged in the outer box body 21. The discharge port of the seed discharge part 23 is connected to the feed port of the seed meter 3.

[0055] The outer box body 21 is a box body without a cover on the upper end, and has an accommodating space 211 inside. The seed discharge member 23 is fixed on the inner wall of the outer box body 21, and a fixing plate 212 matching the outer box body quick fixing member 22 is extended on the outer wall of the outer box body 21.

[0056] An abutment platform 213 is extended from the inner wall of one end of the outer box body 21 close to the seed meter 3 , and a sub-channel 214 is formed between the abutment platform 213 and the inner wall of the outer box body 21 .

[0057] The outer box body quick fixing part 22 includes a fixing ring 221 and a buckle 222. The fixing ring 221 is fixed on the fixing beam 1. The outer box body 21 is partially inserted into the inner ring of the fixing ring 221. The fixing plate 212 is fixed to the fixing ring 221. The buckle 222 is hinged to the fixing ring 221 and is clamped to the edge of the fixing plate 212.

[0058] The edge of the fixing ring 221 extends to form a hinge end 2211 .

[0059] The buckle 222 includes a plate body 2221, one end of the plate body 2221 is hinged to the hinge end 2211, and the side wall of the other end extends to form a clamping plate 2222. The buckle 222 has a clamping shape that abuts against the back of the fixing plate 212.

[0060] In order to ensure stable clamping between the clamping plate 2222 and the fixing plate 212, the clamping plate 2222 has an arc. When the clamping plate 2222 is in the clamping state, the arc surface of the clamping plate 2222 abuts against a side of the fixing plate 212 away from the fixing ring 221 and the side surface of the fixing plate 212.

[0061] The seed discharge member 23 includes a motor 231, a rotating disk 232, a driving rod 233 and an outer cover 234. One end of the driving rod 233 is fixed to the rotating disk 232, and the other end is fixed to the movable end of the motor 231. The outer cover 234 is disposed on the motor 231 and the driving rod 233. A rotating channel 235 that only allows the rotating disk 232 to rotate is provided between the outer cover 234 and the abutment platform 213. The rotating disk 232 partially protrudes from the outer cover 234. A plurality of through holes 2321 are provided on the rotating disk 232. The diameters of the through holes 2321 and the seed channel 214 match the diameter of the seeds. At the same time, only one through hole 2321 is docked with the seed channel 214. The side of the rotating disk 232 away from the driving rod 233 contacts the abutment platform 213.

[0062] The motor 231 drives the rotating disk 232 to rotate through the driving rod 233. The through hole 2321 on the portion of the rotating disk 232 protruding from the outer cover 234 is loaded with a seed. When the through hole 2321 rotates with the rotating disk 232 to dock with the seed channel 214, the loaded seed falls into the seed channel 214 and falls from the seed channel 214 to the seed metering device 3.

[0063] To prevent seeds from getting stuck between the rotating disk 232 and the inner wall of the outer box body 21 and between the rotating disk 232 and the outer cover 234, the distance between the edge of the rotating disk 232 and the inner wall of the outer box body 21 is smaller than the diameter of the seeds, and the distance between the rotating disk 232 and the outer cover 234 is smaller than the diameter of the seeds.

[0064] like Figure 8-Figure 9 As shown, the seed metering device 3 includes a seed metering device body 31 and a rotating wheel 32. The seed metering device body 31 is fixed on the fixed beam 1. A columnar space 311 matching the rotating wheel 32 is provided inside the seed metering device body 31. The rotating wheel 32 is movably arranged in the columnar space 311. A seed entry through hole 312 connected to the columnar space 311 is provided on one end of the seed metering device body 31 close to the outer box body 21. A seed discharge through hole 313 connected to the columnar space 311 is provided on one end of the seed metering device body 31 away from the outer box body 21.

[0065] One end of the seed entry through hole 312 is connected to the columnar space 311 , and the other end is connected to the seed channel 214 .

[0066] A plurality of seed temporary storage grooves 321 are provided on the circumference of the rotating wheel 32 at intervals along the radial direction of the rotating wheel 32 . The seed temporary storage grooves 321 are alternately connected with the seed entry through hole 312 and the seed discharge through hole 313 as the rotating wheel 32 rotates.

[0067] The rotating wheel 32 is connected to the driving mechanism 8 , and the driving mechanism 8 drives the rotating wheel 32 to rotate. The seed temporary storage groove 321 rotates with the rotating wheel 32 to alternately connect with the seed entry through hole 312 and the seed discharge through hole 313 .

[0068] When the rotating wheel 32 rotates, the seed temporary storage groove 321 first docks with the seed entry through hole 312, and the seeds fall from the seed entry through hole 312 into the seed temporary storage groove 321. The rotating wheel 32 continues to rotate, and the seed temporary storage groove 321 containing the seeds docks with the seed discharge through hole 313, and the seeds fall from the seed temporary storage groove 321 into the seed discharge through hole 313 and are discharged.

[0069] To prevent the seeds from falling into the gap between the rotating wheel 32 and the inner wall of the columnar space 311 during the rotation of the rotating wheel 32, the gap between the outer circumference of the rotating wheel 32 and the inner wall of the columnar space 311 is smaller than the diameter of the seeds.

[0070] like Figure 2 , Fig.10 As shown, in order to enable the seeds to be discharged better, the seed metering device 3 also includes a seed protection plate 33, which includes a first side plate 331, a second side plate 332, a third side plate 333 and a sliding baffle. The two sides of the second side plate 332 in the length direction are respectively fixed to the first side plate 331 and the third side plate 333. The first side plate 331 and the third side plate 333 are arranged opposite to each other and fixed to the seed metering device body 31. The first side plate 331 and the third side plate 333 are symmetrically provided with a plurality of slide grooves 334, and the side edges of the sliding baffle are movably embedded in the slide grooves 334. The sliding baffle can effectively prevent the seeds from splashing during the falling process.

[0071] The first side plate 331 , the second side plate 332 , and the third side plate 333 form a larger end and a smaller end.

[0072] One end of the slide groove 334 passes through the side of the first side plate 331 or the third side plate 333 close to the seed metering device body 31 .

[0073] The seed protection plate 33 also includes a first movable baffle plate 335, a second movable baffle plate 336 and a third movable baffle plate 337. The first movable baffle plate 335 is hinged to the side of the first side plate 331 close to the seed metering device 3 through a torsion spring, the second movable baffle plate 336 is hinged to the side of the second side plate 332 close to the seed metering device 3 through a torsion spring, and the third movable baffle plate 337 is hinged to the side of the third side plate 333 close to the seed metering device 3 through a torsion spring. The first movable baffle plate 335 and the third movable baffle plate 337 abut against the part of the sliding baffle that is higher than the first side plate 331 and the second side plate 332, and the second movable baffle plate 336 abuts against the first movable baffle plate 335 and the third movable baffle plate 337.

[0074] When in use, the sliding baffle can be installed in a suitable slide groove according to needs. In addition, the sliding baffle of a suitable height can be selected according to needs. The sliding baffles of different heights have different abutment angles with the first movable baffle 335 and the third movable baffle 337. The angles between the first movable baffle 335, the second movable baffle 336, and the third movable baffle 337 and the first side plate 331, the second side plate 332, and the third side plate 333 are adjusted respectively, so as to adjust the caliber of the docking between the seed protection plate 33 and the seed metering device body 31.

[0075] like Figure 11-Figure 12 As shown, the profiling bracket 4 includes a main bracket 41, a first movable bracket 42, and a second movable bracket 43. One end of the main bracket 41 is fixed to the fixed beam 1, and the other end extends to form a hinged portion 44. The middle part of the first movable bracket 42 is hinged to the hinged portion 44, one end of the second movable bracket 43 is hinged to one end of the first movable bracket 42, and the other end of the second movable bracket 43 is fixed to the profiling boat 5. A rotation angle detection device 45 is provided at the hinged position of the hinged portion 44 and the first movable bracket 42. The rotation angle detection device converts the detected rotation angle of the first movable bracket 42 relative to the main bracket 41 into a height change, and then drives the suspension frame 6 to work, so that the fixed beam 1 is adjusted in the vertical direction. The height of the fixed beam 1 is adjusted, so as to realize the function of profiling sowing on the spot.

[0076] The hinged portion 44 includes a hinge frame 441 , a fixed shaft 442 and a rotating cylinder 443 . The fixed shaft 442 is inserted through the hinge frame 441 , and the rotating cylinder 443 is movably sleeved on the fixed shaft 442 and fixed to the first movable bracket 42 .

[0077] The rotation angle detection device 45 includes a Hall sensor 451 and a plurality of magnets 452. The Hall sensor 451 is arranged on the fixed shaft 442. The detection end of the Hall sensor 451 faces the inner wall of the rotating cylinder 443. The magnets 452 are evenly spaced and arranged on the inner wall circumference of the rotating cylinder 443. The first movable bracket 42 drives the rotating cylinder 443 to rotate relative to the fixed shaft 442. Whenever one of the magnets 452 rotates past the detection end of the Hall sensor 451, it causes a change in the magnetic field, and the Hall sensor 451 outputs a pulse. The angle of rotation of the first movable bracket 42 can be determined by counting the number of pulses.

[0078] like Fig.13As shown, the profiling boat 5 includes a larger end and a smaller end, the smaller end of the profiling boat 5 faces the forward direction of the seed drill, and the smaller end to the larger end of the profiling boat 5 has an arc-shaped transition surface facing the ground. The profiling boat 5 is fixed to the profiling bracket 4.

[0079] The contoured boat 5 comprises a fixing plate 51 , an airbag group 52 and an outer protective cover. The airbag group 52 is detachably arranged on the fixing plate 51 , and the outer protective cover is arranged on the outer surface of the airbag group 52 .

[0080] The cross section of the air bag group 52 is approximately trapezoidal, having a smaller end and a larger end, and the smaller end faces the forward direction of the planter.

[0081] The airbag group 52 includes an internal airbag 521 and a plurality of external airbags 522 . The internal airbag 521 is fixed on the fixing plate 51 , and the external airbags 522 are fixed on the surface of the internal airbag 521 to completely wrap the internal airbag 521 . Adjacent external airbags 522 are in tight contact with each other.

[0082] The external airbags 522 can play a protective role, and even if one of them is punctured by a sharp object on the ground, it will not affect the overall effect of the airbag group 52. Moreover, if one of them is punctured by a sharp object on the ground, it can be replaced specifically without replacing the entire airbag group 52, which effectively saves costs.

[0083] A mother Velcro patch is provided on the surface of the inner airbag 521. A child Velcro patch is provided on the surface of the outer airbag 522, and the child Velcro patch corresponds to the mother Velcro patch. The outer airbag 522 is quickly fixed to the inner airbag 521 through Velcro. The Velcro method is used for fixing, so that the outer airbag 522 and the inner airbag 521 can be quickly fixed and removed.

[0084] The outer protective cover is a cloth cover with a fixing rope extending from its edge. The outer protective cover is arranged on the outer surface of the fixing plate 51 and the outer airbag 522, and wraps the fixing plate 51, the inner airbag 521, and the outer airbag 522 therein. The fixing rope of the outer protective cover is fixed to the contour bracket 4. The outer protective cover wraps the fixing plate 51 and the airbag group 52 into a whole, and has a certain function of protecting the airbag group 52.

[0085] like Figure 14-16As shown, the suspension frame 6 includes a fixed beam connecting frame 61, a lifting cylinder 62 and an external connecting frame 63. The external connecting frame 63 is fixed to an external device. The lifting cylinder 62 is fixed to the external connecting frame 63. Its movable end is extended and retracted in the vertical direction and connected to one end of the fixed beam connecting frame 61, and the other end is connected to the fixed beam 1. The movable end of the lifting cylinder 62 is extended and retracted to drive the fixed beam connecting frame 61 to rise and fall, thereby driving the fixed beam 1 to rise and fall.

[0086] Since the seed drill is operated in an open-air environment, in order to protect the lifting cylinder 62 and extend the service life of the lifting cylinder 62, the external connecting frame 63 includes a U-shaped beam 631, and the lifting cylinder 62 is embedded in the U-shaped groove of the U-shaped beam 631. The movable direction of the movable end of the lifting cylinder 62 is parallel to the U-shaped beam 631. The lifting cylinder 62 is arranged in the U-shaped beam 631 to protect the lifting cylinder 62.

[0087] The fixed beam connecting frame 61 includes a connecting block 611 and a connecting plate 612. The connecting block 611 is fixed to the movable end of the lifting cylinder 62 and partially protrudes from the U-shaped groove of the U-shaped beam 631. The part of the connecting block 611 protruding from the U-shaped groove of the U-shaped beam 631 extends to form a connecting end 613 fixed to the connecting plate 612. One end of the connecting plate 612 is connected to the connecting end 613, and the other end is fixed to the fixed beam 1.

[0088] In this embodiment, a plurality of balls 614 are embedded on the surface of the connection end 613 close to the U-shaped beam 631 .

[0089] like Figure 17-Figure 18 As shown, the leveling ridger 7 includes a hull 71, the hull 71 has an arc-shaped bottom surface, a plurality of wedge-shaped portions 72 are provided on the arc-shaped bottom surface, the wedge-shaped portion 72 has a smaller end and a larger end along the length direction, and the smaller end of the wedge-shaped portion 72 faces the forward direction of the leveling ridger 7.

[0090] The arc bottom surface extends upward to form an arc protection head 711 on one end of the hull 71 facing the forward direction, thereby effectively preventing mud from entering the interior of the hull 71 .

[0091] A plurality of reinforcing ribs 712 are disposed inside the arc-shaped protection head 711 .

[0092] The arc-shaped bottom surface is provided with a plurality of mounting convex beams 73, and the mounting convex beams 73 include a pair of relatively parallel convex strips 74, and the convex strips 74 protrude relative to the arc-shaped bottom surface. The arc-shaped bottom surface between the convex strips 74 is the mounting area of ​​the wedge-shaped portion 72, and the wedge-shaped portion 72 is detachably mounted in the mounting area, and the side of the wedge-shaped portion 72 abuts against the convex strips 74.

[0093] In this embodiment, a plurality of threaded through holes are provided on the installation area, and a mounting hole is provided on the wedge-shaped portion 72 at a position on the surface of the installation area corresponding to the threaded through hole. During installation, the wedge-shaped portion 72 is inserted between the convex strips 74 so that the mounting holes on the wedge-shaped portion 72 are aligned with the threaded through holes, and then the wedge-shaped portion 72 is fixed to the installation area with bolts.

[0094] The convex strip 74 has two side edges along the length direction, one of the side edges abuts against the wedge-shaped portion 72 , and the other side edge has an arc surface 741 , and the connection between the arc surface 741 and the arc bottom surface is parallel to the arc bottom surface.

[0095] When working, the wedge-shaped portion 72 protrudes relative to the hull 71, penetrates into the ground, plows ridges on the ground, and the plowed soil is discharged along the arc surface 741. When the soil leaves the arc surface 741, the movement direction is parallel to the arc bottom surface, thereby reducing the contact between the soil and the arc bottom surface and effectively protecting the arc ground. Since the wedge-shaped portion 72 contacts the soil more, it is easy to be damaged. The damaged wedge-shaped portion 72 can be removed and replaced for easy maintenance.

[0096] like Figure 21-24 As shown, in order to further avoid mud and sand, a mud surge prevention device 9 is provided on the side of the hull 71 , and the mud surge prevention device 9 includes a base plate 91 and a mud scraping mechanism 92 , and the mud scraping mechanism 92 is movably provided on the base plate 91 , and the mud scraping mechanism 92 can slide along the base plate 91 .

[0097] Side plates 93 are provided on both sides of the base plate 91 in the length direction. The side plates 93 are perpendicular to the base plate 91 . Sliding grooves 931 are provided on the inner walls of the side plates 93 . A plurality of waist-shaped grooves 911 are provided on the base plate 91 .

[0098] The scraper mechanism 92 has a main body 921 and a scraper 922. The main body 921 is arranged between the side plates 93. The main body 921 extends toward the surface of the side plate 93 to form a protrusion 923. The protrusion 923 is embedded in the sliding groove 931. The scraper 922 is fixed to the main body 921. The scraper 922 is inclined relative to the base plate 91, and one side of the scraper 922 abuts against the base plate 91.

[0099] When the scraper mechanism 92 slides along the base plate 91 , the scraper plate 922 abuts against the base plate 91 to scrape off the mud on the base plate 91 .

[0100] In order to prevent the scraper mechanism 92 from shaking when the seed drill is working, a threaded fixing hole 924 is provided on the main body 921, and a scraper mechanism fixing hole 912 corresponding to the threaded fixing hole 924 is provided on the base plate 91. The anti-mud surge device 9 also includes a fixing bolt 95, and the fixing bolt 95 can be passed through the threaded fixing hole 924 and the scraper mechanism fixing hole 912 to fix the scraper mechanism 92 relatively to the base plate 91.

[0101] like Figure 19-20 As shown, the driving mechanism 8 includes a driving motor 81, a motor fixing frame 82, a transmission rod 83, a transmission bevel gear 84 and a driving bevel gear 85. The motor fixing frame 82 is fixed on the fixed beam 1, the fixed end of the driving motor 81 is fixed on the motor fixing frame 82, the driving bevel gear 85 is fixed to the movable end of the driving motor 81, the transmission rod 83 is fixed to the plurality of rotating wheels 32, and the transmission bevel gear 84 is fixed on the transmission rod 83 and meshes with the driving bevel gear 85.

[0102] In order to protect the transmission bevel gear 84 and the driving bevel gear 85 and extend the service life of the transmission bevel gear 84 and the driving bevel gear 85 , the driving mechanism 8 further includes a sleeve 86 , and the sleeve 86 is fixed on the motor fixing frame 82 .

[0103] The sleeve 86 has a tubular passage 861 formed in its length direction, the transmission rod 83 is passed through the tubular passage 861, the transmission bevel gear 84 is disposed in the tubular passage 861 and is coaxially fixed with the transmission rod 83, an insertion hole 862 is formed on the side wall of the sleeve 86, the movable end of the drive motor 81 is inserted into the insertion hole 862, the drive bevel gear 85 is disposed in the tubular passage 861 and is fixed to the portion of the movable end of the drive motor 81 that is inserted into the insertion hole 862, and the drive bevel gear 85 is meshed with the transmission bevel gear 84.

[0104] In order to enable the transmission rod 83 to rotate stably, the driving mechanism 8 also includes a plurality of rotating bearings 87, wherein the rotating bearing 87 has a first part 871 and a second part 872 that can rotate relative to each other, wherein the first part 871 is coaxially fixed to the transmission rod 83, and the second part 872 is fixed to the inner wall of the tubular channel 861, and a ball is provided between the first part 871 and the second part 872.

[0105] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A seed drill, characterized in that: include: A fixed beam, a seed box, a seed meter, a profiling bracket, a profiling boat, a hanging frame, a ground ridger and a driving mechanism, wherein the seed box, the seed meter, the profiling bracket, the hanging frame, the ground ridger and the driving mechanism are fixed on the fixed beam, the discharge port of the seed box is docked with the feed port of the seed meter, the profiling boat is fixed to one end of the profiling bracket away from the fixed beam, one end of the hanging frame is fixed to the fixed beam, and the other end is fixed to an external device, the ground ridger is located below the seed meter, the driving mechanism is connected to the seed meter to drive the seed meter to meter seeds, the fixed beam includes a connecting beam and a load-bearing beam, the connecting beam is fixed to the hanging frame, The load-bearing beam is fixed on the connecting beam, and a plurality of fixing seats are provided on the load-bearing beam, and the position of the fixing seats on the load-bearing beam is adjustable, and the seed box is fixed on the fixing seat, and the seed box comprises an outer box body, an outer box body quick fixing part, and a seed discharge part, and the outer box body quick fixing part is fixed on the fixing beam, and the seed discharge part is arranged in the outer box body, and the discharge port of the seed discharge part is docked with the feed port of the seed metering device, and the inner wall of the outer box body extends on one end of the inner wall close to the seed metering device to form an abutment platform, and a sub-channel is formed between the abutment platform and the inner wall of the outer box body, and the outer box body is a box body without a cover on the upper end, and has an accommodating space inside, and the seed discharge part is fixed on the outer box body. The seed discharging device is fixed on the inner wall of the outer box body, and the seed discharging member includes a motor, a rotating disk, a driving rod and an outer cover. One end of the driving rod is fixed to the rotating disk, and the other end is fixed to the movable end of the motor. The outer cover is arranged on the motor and the driving rod. A rotating channel that only allows the rotating disk to rotate is provided between the outer cover and the abutment platform. The rotating disk partially protrudes from the outer cover. A plurality of through holes are provided on the rotating disk. The diameters of the through holes and the seed channel match the diameter of the seeds. At the same time, only one through hole is docked with the seed channel. The side of the rotating disk away from the driving rod contacts the abutment platform. The seed meter includes a seed meter body and a rotating The seed metering device comprises a wheel, a main body of the seed metering device is fixed on the fixed beam, a columnar space matching the rotating wheel is arranged inside the main body of the seed metering device, the rotating wheel is movably arranged in the columnar space, a seed entry through hole connected to the columnar space is opened on one end of the main body of the seed metering device close to the outer box body, a seed discharge through hole connected to the columnar space is opened on one end of the main body of the seed metering device away from the outer box body, the flat ground ridging device comprises a hull, the hull has an arc-shaped bottom surface, a plurality of wedge-shaped portions are arranged on the arc-shaped bottom surface, the wedge-shaped portion has a smaller end and a larger end along the length direction, and the smaller end of the wedge-shaped portion faces the forward direction of the flat ground ridging device.

2. The seed drill according to claim 1, characterized in that: The seed metering device also includes a seed protection plate, which includes a first side plate, a second side plate, a third side plate and a sliding baffle. Both side edges of the second side plate in the length direction are respectively fixed to the first side plate and the third side plate. The first side plate and the third side plate are arranged opposite to each other and fixed to the main body of the seed metering device. The first side plate and the third side plate are symmetrically provided with a plurality of sliding grooves, and the side edges of the sliding baffle are movably embedded in the sliding grooves.

3. The seed drill according to claim 1, characterized in that: The contour-forming bracket includes a main bracket, a first movable bracket, and a second movable bracket. One end of the main bracket is fixed to the fixed beam, and the other end extends to form a hinged portion. The middle portion of the first movable bracket is hinged to the hinged portion, one end of the second movable bracket is hinged to one end of the first movable bracket, and the other end of the second movable bracket is fixed to the contour-forming boat. A rotation angle detection device is provided at the hinged position between the hinged portion and the first movable bracket.

4. The seed drill according to claim 1, characterized in that: The contoured boat includes a larger end and a smaller end, the smaller end of the contoured boat faces the forward direction of the seeder, and the contoured boat has an arc-shaped transition surface facing the ground from the smaller end to the larger end. The contoured boat includes a fixing plate, an airbag group and an outer protective cover, the airbag group is detachably arranged on the fixing plate, and the outer protective cover is arranged on the outer surface of the airbag group.

5. The seed drill according to claim 1, characterized in that: The suspension frame includes a fixed beam connecting frame, a lifting cylinder and an external connecting frame. The external connecting frame is fixed to an external device. The lifting cylinder is fixed to the external connecting frame. The movable end of the lifting cylinder is telescopic in the vertical direction and connected to one end of the fixed beam connecting frame, and the other end is connected to the fixed beam. The movable end of the lifting cylinder is telescopic to drive the fixed beam connecting frame to rise and fall, thereby driving the fixed beam to rise and fall.

6. The seed drill according to claim 1, characterized in that: The driving mechanism includes a driving motor, a motor fixing frame, a transmission rod, a transmission bevel gear and a driving bevel gear, the motor fixing frame is fixed on the fixed beam, the fixed end of the driving motor is fixed on the motor fixing frame, the driving bevel gear is fixed to the movable end of the driving motor, the transmission rod is fixed to a plurality of the rotating wheels, and the transmission bevel gear is fixed on the transmission rod and meshes with the driving bevel gear.

Images