Conical rolling and consolidating furrower

Abstract

This invention discloses a conical compaction and furrowing device for a rotary tiller. The device opens the initial shape of the furrows using a furrow opener. The left and right rotary tillage shafts drive the rotary blades to rotate clockwise, tilling, breaking up, and mixing the soil. Then, a compaction roller performs initial compaction on the tilled ridges. Next, the left and right conical rollers roll, shape, compact, and trim the sloping sides of the furrows. The lower end of the T-shaped frame scrapes and trims the bottom of the furrows, forming a standard inverted isosceles trapezoidal furrow that is wider at the top and narrower at the bottom, with firm and smooth walls. Simultaneously, an adjustable-angle compaction arc plate performs final compaction and leveling of the entire furrow surface, creating a seedbed with suitable density. This invention achieves a single operation that combines furrowing and rotary tillage, ridge compaction, furrow compaction and trimming, and furrow surface compaction. This ensures a stable and durable furrow shape, does not affect subsequent irrigation, drainage, and fertilization, and guarantees soil compaction after rotary tillage, improving soil moisture retention.

Description

Technical Field

[0001] This invention belongs to the technical field of rotary tillage and ditching equipment. Specifically, this invention relates to a conical pressing and ditching device for a rotary tiller. Background Technology

[0002] Traditional rotary tillers perform ditching and compaction simultaneously, followed by compaction using rollers. This process suffers from the following technical drawbacks:

[0003] First: During the compaction process of the roller, the soil on the side of the furrow opened by the furrow opener is prone to loosening and collapse, causing the fallen soil to block the furrow. This not only leads to the instability of the furrow shape, but also affects the subsequent irrigation, drainage and fertilization effects.

[0004] Second: After the soil is tilled, broken up and mixed by rotary tillers, it is compacted by rollers, resulting in insufficient soil density and a lack of moisture retention. Summary of the Invention

[0005] This invention provides a conical pressing and ditching device for a rotary tiller to solve the technical problems existing in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a conical pressing and ditching device for a rotary tiller, comprising a rotary tiller, a first gearbox, a second gearbox, a main traction frame, a diagonal connecting rod, a secondary traction frame, a pressing roller assembly, a pressing plate assembly, and a conical pressing mechanism. The first gearbox is fastened to the middle of the rotary tiller, and the second gearbox is fastened to the lower end of the first gearbox. The main traction frame is fastened to the upper end of the rotary tiller via a U-shaped clamp. The secondary traction frame is fastened to the upper end of the rotary tiller on one hand via a U-shaped clamp, and to the main traction frame on the other hand via a diagonal connecting rod. The pressing roller assembly is connected to the lower rear end of the rotary tiller. The pressing plate assembly is fastened to the rear end of the secondary traction frame. The conical pressing mechanism is connected to the pressing plate assembly and is driven by the first gearbox.

[0007] Preferably, the rotary tiller includes a front main crossbeam, a rear main crossbeam, a left connecting plate, a right connecting plate, a left side plate, a right side plate, and a rear mudguard. The left sides of the front and rear main crossbeams are respectively fastened to the left connecting plate, and the right sides of the front and rear main crossbeams are respectively fastened to the right connecting plate. The left side plate is fastened to the left connecting plate, and the right side plate is fastened to the right connecting plate. The left side of the rear mudguard is fastened to the left side plate, and the right side of the rear mudguard is fastened to the right side plate.

[0008] The front main crossbeam has a front frame plate in the middle, and the rear main crossbeam has a rear frame plate in the middle. The first gearbox is fastened to the front frame plate and the rear frame plate.

[0009] The rotary tiller also includes a left rotary tiller shaft and a right rotary tiller shaft, which are driven by the output section of the second gearbox. The other end of the left rotary tiller shaft is connected to the left side plate through a bearing, and the other end of the right rotary tiller shaft is connected to the right side plate through a bearing.

[0010] Preferably, the auxiliary traction frame further includes a position adjustment plate, a rocker arm, a first corner buckle, and a second corner buckle. The front end of the rocker arm is hinged to the front end of the auxiliary traction frame via a pin. The rocker arm passes through the position adjustment plate and is locked to the position adjustment plate. The first corner buckle is fastened to the rear end of the rocker arm. The second corner buckle and the first corner buckle simultaneously clamp the front auxiliary crossbeam in the pressing plate assembly.

[0011] Preferably, the press roller assembly includes a left L-plate, a right L-plate, a press roller, an up-down adjustment mechanism, and a scraper. The left L-plate is fastened to the left side plate, and the right L-plate is fastened to the right side plate. One end of the press roller is connected to the left L-plate via a bearing, and the other end is connected to the right L-plate via a bearing. The up-down adjustment mechanism is fastened to the front auxiliary crossbeam via a U-shaped clamp. The scraper is connected to the lower end of the up-down adjustment mechanism, and the up-down adjustment mechanism adjusts the up-down position of the scraper.

[0012] Preferably, the press plate assembly includes a front sub-beam, a rear sub-beam one, a rear sub-beam two, a left rear plate, a right rear plate, and a press plate mechanism. One end of the front sub-beam, the rear sub-beam one, and the rear sub-beam two are respectively fastened to the left rear plate, and the other end of the front sub-beam, the rear sub-beam one, and the rear sub-beam two are respectively fastened to the right rear plate. The press plate mechanism is provided in two sets, and is located on both sides of the conical press plate mechanism.

[0013] Preferably, the pressing plate mechanism includes a frame, a pressing arc plate, and a telescopic assembly. The frame is fastened to the second rear sub-beam. The frame is provided with a first hinge seat. The pressing arc plate is provided with a second hinge seat and a third hinge seat. The first hinge seat and the second hinge seat are hinged together. The fixed end of the telescopic assembly is hinged to the rear end of the rocker arm, and the telescopic end of the telescopic assembly is hinged to the third hinge seat. The telescopic assembly is a cylinder, a hydraulic cylinder, or an electric push rod.

[0014] Preferably, a first bearing seat is provided in the middle of the front sub-beam, a second bearing seat is provided in the middle of the rear sub-beam, and a third bearing seat is provided on the rear sub-beam on both sides of the second bearing seat;

[0015] The conical pressing mechanism includes a universal joint, a splined shaft, an outer rotating shaft, a central rotating shaft, a left rotating shaft, a right rotating shaft, a T-shaped frame, a left conical roller, and a right conical roller. The front end of the universal joint is connected to the rear output shaft end of the second gearbox. The front end of the splined shaft is fastened to the rear end of the universal joint. The rear end of the splined shaft is inserted into the outer rotating shaft through a spline and is axially slidably connected to the outer rotating shaft.

[0016] The outer rotating shaft is connected to the first shaft seat via a bearing, and a pulley is provided at the end of the outer rotating shaft;

[0017] The central shaft is connected to the second shaft seat by a bearing. The central shaft is equipped with a second pulley and a third small bevel gear. The first pulley and the second pulley are connected by a belt.

[0018] The left rotating shaft is connected to the third shaft seat on the left side via a bearing. One end of the left rotating shaft is provided with a small bevel gear four, and the other end is provided with a small bevel gear five. The small bevel gear four meshes with the small bevel gear three.

[0019] The right-hand rotating shaft is connected to the third shaft seat on the right side via a bearing. One end of the right-hand rotating shaft is provided with a small bevel gear six, and the other end is provided with a small bevel gear seven. The small bevel gear six meshes with the small bevel gear three.

[0020] The upper end of the T-shaped frame is fastened to the middle of the second rear sub-beam;

[0021] The upper end of the left conical roller is connected to the second rear crossbeam via a bearing with a seat, and the lower end of the left conical roller is connected to the T-shaped frame via a bearing with a seat; the upper end of the left conical roller is provided with a small bevel gear eight, and the small bevel gear eight meshes with the small bevel gear five;

[0022] The upper end of the right conical roller is connected to the second rear crossbeam via a bearing seat, and the lower end of the right conical roller is connected to the T-shaped frame via a bearing seat; the upper end of the right conical roller is provided with a small bevel gear nine, and the small bevel gear nine meshes with the small bevel gear seven.

[0023] Preferably, a tensioning seat plate is provided below the first shaft seat, a tensioning frame is provided on the tensioning seat plate, a tensioning wheel is provided on the tensioning frame, and the tensioning wheel tensions the belt.

[0024] Preferably, the first gearbox has a front input shaft at the front end, a small bevel gear 1 on the front input shaft, an upper rotating shaft in the middle of the first gearbox, a large bevel gear and an upper small cylindrical gear on the upper rotating shaft, and the small bevel gear 1 meshes with the large bevel gear. The first gearbox has a rear output shaft at the rear end, and a small bevel gear 2 on the rear output shaft.

[0025] The second gearbox has a reversing shaft in the middle, and a large cylindrical reversing gear on the reversing shaft. The large cylindrical reversing gear meshes with the upper small cylindrical gear. The lower end of the second gearbox has a lower output shaft, and a lower small cylindrical gear on the lower output shaft. The lower output shaft drives the left rotary tiller shaft and the right rotary tiller shaft to rotate synchronously.

[0026] The beneficial effects of adopting the above technical solutions are:

[0027] 1. The conical pressing and ditching device of the rotary tiller of the present invention opens a vague inverted isosceles trapezoidal ditch through the ditch opener. At the same time, the left and right rotary tilling shafts on both sides drive the rotary tilling blades to rotate clockwise to rotary till, break and mix the soil. Then, the pressing roller performs initial pressing on the ridge after rotary tillage. Then, the left and right conical rollers roll, shape, compact and trim the inclined surfaces on both sides of the ridge. The lower end of the T-shaped frame scrapes and trims the bottom of the ridge, forming a standard inverted isosceles trapezoidal ridge that is wider at the top and narrower at the bottom with solid and smooth walls. At the same time, the ridge is finally pressed and leveled by the pressing arc plate whose tilt angle can be adjusted by the telescopic component, forming a seedbed with appropriate tightness.

[0028] 2. The conical pressing and ditching device of the rotary tiller of the present invention realizes the composite operation of ditching and rotary tillage, ridge pressing, ridge and furrow pressing and trimming and bed surface pressing in one operation. This achieves the long-term stability of the ridge and furrow shape, without affecting the subsequent irrigation, drainage and fertilization effect, and also ensures the soil compaction after rotary tillage and improves the soil moisture retention capacity. Attached Figure Description

[0029] Figure 1 The conical compaction and ditching device of the rotary tiller of the present invention is assembled. Figure 1 ;

[0030] Figure 2 The conical compaction and ditching device of the rotary tiller of the present invention is assembled. Figure 2 ;

[0031] Figure 3 yes Figure 2 Enlarged view of a portion of position A in the middle;

[0032] Figure 4 The conical compaction and ditching device of the rotary tiller of the present invention is assembled. Figure 3 ;

[0033] Figure 5 This is a schematic diagram of the transmission structure of the first gearbox and the second gearbox.

[0034] in:

[0035] 1. Rotary tiller; 2. First gearbox; 3. Second gearbox; 4. Main traction frame; 5. Diagonal connecting rod; 6. Secondary traction frame; 7. Press roller assembly; 8. Press plate assembly; 9. Conical pressing mechanism;

[0036] 10. Front main crossbeam; 11. Rear main crossbeam; 12. Left connecting plate; 13. Right connecting plate; 14. Left side plate; 15. Right side plate; 16. Rear mudguard; 17. Front frame plate; 18. Rear frame plate; 19. Trench opener;

[0037] 1-1, Left-hand rotary tiller; 1-2, Right-hand rotary tiller;

[0038] 20. Front input shaft; 20-1. Small bevel gear one;

[0039] 21. Upper rotating shaft; 21-1. Large bevel gear; 21-2. Upper small cylindrical gear;

[0040] 22. Rear output shaft; 22-1. Small bevel gear II;

[0041] 30. Reversing shaft; 30-1. Large cylindrical reversing gear;

[0042] 31. Lower output shaft; 31-1. Lower small cylindrical gear;

[0043] 60. Position adjustment plate; 61. Rocker arm; 62. Corner buckle one; 63. Corner buckle two;

[0044] 70. Left L-plate; 71. Right L-plate; 72. Press roller; 73. Up and down adjustment mechanism; 74. Sludge scraper;

[0045] 80. Front sub-beam; 81. Rear sub-beam one; 82. Rear sub-beam two; 83. Left rear plate; 84. Right rear plate; 85. Press plate mechanism;

[0046] 85-1, Frame; 85-10, Hinge Seat 1;

[0047] 85-2, Pressing Arc Plate; 85-20, Hinge Seat Two; 85-21, Hinge Seat Three;

[0048] 85-3, Telescopic components;

[0049] 9-1, First axle seat; 9-2, Second axle seat; 9-3, Third axle seat; 9-4, Tensioning seat plate; 9-5, Tensioning frame; 9-6, Tensioning wheel;

[0050] 90. Universal joint;

[0051] 91. Spline shaft;

[0052] 92. Outer shaft; 92-1. Pulley 1;

[0053] 93. Central shaft; 93-1. Pulley 2; 93-2. Small bevel gear 3;

[0054] 94. Left-hand rotating shaft; 94-1. Small bevel gear four; 94-2. Small bevel gear five;

[0055] 95. Right-hand pivot; 95-1. Small bevel gear six; 95-2. Small bevel gear seven;

[0056] 96. T-shaped frame;

[0057] 97. Left conical roller; 97-1. Small bevel gear eight;

[0058] 98. Right conical roller; 98-1. Small bevel gear nine. Detailed Implementation

[0059] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and to facilitate its implementation.

[0060] like Figures 1 to 5 As shown, this invention is a conical compaction and ditching device for a rotary tiller, which realizes the composite operation of ditching and rotary tillage, ridge compaction, ridge and furrow compaction and furrow surface compaction in one operation. This achieves long-term stability of ridge and furrow shape, without affecting subsequent irrigation, drainage and fertilization effects, and also ensures soil compaction after rotary tillage, thereby improving soil moisture retention capacity.

[0061] Specifically, such as Figures 1 to 5 As shown, a conical pressing and ditching device for a rotary tiller includes a rotary tiller 1, a first gearbox 2, a second gearbox 3, a main traction frame 4, a diagonal connecting rod 5, a secondary traction frame 6, a pressing roller assembly 7, a pressing plate assembly 8, and a conical pressing mechanism 9. The first gearbox 2 is fastened to the middle of the rotary tiller 1, and the second gearbox 3 is fastened to the lower end of the first gearbox 2. The main traction frame 4 is fastened to the upper end of the rotary tiller 1 via a U-shaped clamp. The secondary traction frame 6 is fastened to the upper end of the rotary tiller 1 via a U-shaped clamp and to the main traction frame 4 via the diagonal connecting rod 5. The pressing roller assembly 7 is connected to the lower rear end of the rotary tiller 1, the pressing plate assembly 8 is fastened to the rear end of the secondary traction frame 6, and the conical pressing mechanism 9 is connected to the pressing plate assembly 8 and driven by the first gearbox 2.

[0062] The rotary tiller 1 includes a front main crossbeam 10, a rear main crossbeam 11, a left connecting plate 12, a right connecting plate 13, a left side plate 14, a right side plate 15, and a rear mudguard 16. The left sides of the front main crossbeam 10 and the rear main crossbeam 11 are respectively fastened to the left connecting plate 12, and the right sides of the front main crossbeam 10 and the rear main crossbeam 11 are respectively fastened to the right connecting plate 13. The left side plate 14 is fastened to the left connecting plate 12, and the right side plate 15 is fastened to the right connecting plate 13. The left side of the rear mudguard 16 is fastened to the left side plate 14, and the right side of the rear mudguard 16 is fastened to the right side plate 15.

[0063] The front main crossbeam 10 has a front frame plate 17 in the middle, and the rear main crossbeam 11 has a rear frame plate 18 in the middle. The first gearbox 2 is fastened to the front frame plate 17 and the rear frame plate 18.

[0064] The rotary tiller 1 also includes a left rotary tillage shaft 1-1 and a right rotary tillage shaft 1-2. The left rotary tillage shaft 1-1 and the right rotary tillage shaft 1-2 are driven by the output section of the second gearbox 3. The other end of the left rotary tillage shaft 1-1 is connected to the left side plate 14 through a bearing, and the other end of the right rotary tillage shaft 1-2 is connected to the right side plate 15 through a bearing.

[0065] The auxiliary traction frame 6 also includes a position adjustment plate 60, a rocker arm 61, a first corner buckle 62, and a second corner buckle 63. The front end of the rocker arm 61 is hinged to the front end of the auxiliary traction frame 6 via a pin. The rocker arm 61 passes through the position adjustment plate 60 and is locked to the position adjustment plate 60. The first corner buckle 62 is fastened to the rear end of the rocker arm 61. The second corner buckle 63 and the first corner buckle 62 simultaneously clamp the front auxiliary crossbeam 80 in the pressing plate assembly 8.

[0066] The press roller assembly 7 includes a left L-plate 70, a right L-plate 71, a press roller 72, an up-down adjustment mechanism 73, and a scraper 74. The left L-plate 70 is fastened to the left side plate 14, and the right L-plate 71 is fastened to the right side plate 15. One end of the press roller 72 is connected to the left L-plate 70 via a bearing, and the other end is connected to the right L-plate 71 via a bearing. The up-down adjustment mechanism 73 is fastened to the front auxiliary crossbeam 80 via a U-shaped clamp. The scraper 74 is connected to the lower end of the up-down adjustment mechanism 73, and the up-down adjustment mechanism 73 adjusts the up-down position of the scraper 74.

[0067] The press plate assembly 8 includes a front sub-beam 80, a rear sub-beam one 81, a rear sub-beam two 82, a left rear plate 83, a right rear plate 84, and a press plate mechanism 85. One end of the front sub-beam 80, the rear sub-beam one 81, and the rear sub-beam two 82 are respectively fastened to the left rear plate 83, and the other end of the front sub-beam 80, the rear sub-beam one 81, and the rear sub-beam two 82 are respectively fastened to the right rear plate 84. The press plate mechanism 85 is provided in two sets, and is located on both sides of the conical press mechanism 9.

[0068] The pressing plate mechanism 85 includes a frame 85-1, a pressing arc plate 85-2, and a telescopic component 85-3. The frame 85-1 is fastened to the rear auxiliary crossbeam 82. The frame 85-1 is provided with a hinge seat 85-10, and the pressing arc plate 85-2 is provided with a hinge seat 85-20 and a hinge seat 85-21. The hinge seat 85-10 and the hinge seat 85-20 are hinged together. The fixed end of the telescopic component 85-3 is hinged to the rear end of the rocker arm 61, and the telescopic end of the telescopic component 85-3 is hinged to the hinge seat 85-21. The telescopic component 85-3 is a cylinder, a hydraulic cylinder, or an electric push rod.

[0069] The front sub-beam 80 is provided with a first bearing seat 9-1 in the middle, the rear sub-beam 82 is provided with a second bearing seat 9-2 in the middle, and the rear sub-beam 82 on both sides of the second bearing seat 9-2 is provided with a third bearing seat 9-3.

[0070] The conical pressing mechanism 9 includes a universal joint 90, a splined shaft 91, an outer rotating shaft 92, a central rotating shaft 93, a left rotating shaft 94, a right rotating shaft 95, a T-shaped frame 96, a left conical roller 97, and a right conical roller 98. The front end of the universal joint 90 is connected to the rear output shaft end of the second gearbox 3. The front end of the splined shaft 91 is fastened to the rear end of the universal joint 90. The rear end of the splined shaft 91 is inserted into the outer rotating shaft 92 through a spline and is axially slidably connected to the outer rotating shaft 92.

[0071] The outer rotating shaft 92 is connected to the first shaft seat 9-1 via a bearing, and the end of the outer rotating shaft 92 is provided with a pulley 92-1;

[0072] The central shaft 93 is connected to the second shaft seat 9-2 by bearings. The central shaft 93 is provided with pulley 2 93-1 and small bevel gear 3 93-2. The pulley 1 92-1 and pulley 2 93-1 are connected by a belt.

[0073] The left rotating shaft 94 is connected to the third shaft seat 9-3 on the left side via a bearing. One end of the left rotating shaft 94 is provided with a small bevel gear 94-1 and the other end is provided with a small bevel gear 94-2. The small bevel gear 94-1 meshes with the small bevel gear 93-2.

[0074] The right-hand rotating shaft 95 is connected to the third shaft seat 9-3 on the right side via a bearing. One end of the right-hand rotating shaft 95 is provided with a small bevel gear six 95-1 and the other end is provided with a small bevel gear seven 95-2. The small bevel gear six 95-1 meshes with the small bevel gear three 93-2.

[0075] The upper end of the T-shaped frame 96 is fastened to the middle of the rear secondary crossbeam 82;

[0076] The upper end of the left conical roller 97 is connected to the rear auxiliary crossbeam 82 via a bearing with a seat, and the lower end of the left conical roller 97 is connected to the T-shaped frame 96 via a bearing with a seat; the upper end of the left conical roller 97 is provided with a small bevel gear 8 97-1, and the small bevel gear 8 97-1 meshes with the small bevel gear 5 94-2;

[0077] The upper end of the right conical roller 98 is connected to the rear auxiliary crossbeam 82 via a seated bearing, and the lower end of the right conical roller 98 is connected to the T-shaped frame 96 via a seated bearing; the upper end of the right conical roller 98 is provided with a small bevel gear 98-1, and the small bevel gear 98-1 meshes with the small bevel gear 7 95-2.

[0078] Below the first bearing seat 9-1, there is a tensioning plate 9-4, on which a tensioning frame 9-5 is provided, and on which a tensioning wheel 9-6 is provided, and the tensioning wheel 9-6 tensions the belt.

[0079] The first gearbox 2 has a front input shaft 20 at the front end, and a small bevel gear 20-1 on the front input shaft 20. The first gearbox has an upper rotating shaft 21 in the middle, and a large bevel gear 21-1 and an upper small cylindrical gear 21-2 on the upper rotating shaft 21. The small bevel gear 20-1 meshes with the large bevel gear 21-1. The first gearbox 2 has a rear output shaft 22 at the rear end, and a small bevel gear 22-1 on the rear output shaft 22.

[0080] The second gearbox 3 has a reversing shaft 30 in the middle, and a large cylindrical reversing gear 30-1 is provided on the reversing shaft 30. The large cylindrical reversing gear 30-1 meshes with the upper small cylindrical gear 21-2. The lower end of the second gearbox 3 has a lower output shaft 31, and the lower output shaft 31 has a lower small cylindrical gear 31-1. The lower output shaft 31 drives the left rotary tillage shaft 1-1 and the right rotary tillage shaft 1-2 to rotate synchronously.

[0081] The specific working method is described below using specific embodiments:

[0082] Example 1:

[0083] The conical pressing and ditching device of the rotary tiller of the present invention is connected to the rear end of the tractor via the main traction frame 4. The conical pressing and ditching device of the rotary tiller is pulled forward by the tractor, and the ditch opener 19 at the front end performs ditching operations, creating a vague inverted isosceles trapezoidal ditch. The power of the rear end of the tractor is input to the first gearbox 2 via the clockwise rotation of the front input shaft 20. The small bevel gear 20-1 drives the upper rotating shaft 21 and the small bevel gear 22-1 to rotate synchronously through the large bevel gear 21-1. On one hand, the upper rotating shaft 21 drives the upper small cylindrical gear 21-2 to rotate clockwise, transmitting power to the second gearbox 3; on the other hand, the small bevel gear 22-1 drives the rear output shaft 22 to rotate counterclockwise, transmitting power to the conical pressing mechanism 9.

[0084] The large cylindrical reversing gear 30-1 in the second gearbox 3 rotates counterclockwise, which drives the lower output shaft 31 to rotate clockwise through the lower small cylindrical gear 31-1. The output shaft 31 simultaneously drives the left rotary tillage shaft 1-1 and the right rotary tillage shaft 1-2 to rotate clockwise, thereby realizing the rotary tillage, crushing and mixing of the soil.

[0085] The rear output shaft 22 transmits power sequentially to the universal joint 90, spline shaft 91, outer rotating shaft 92 and pulley 92-1 in the conical pressing mechanism 9. The counterclockwise rotation of pulley 92-1 drives pulley 93-1 to rotate counterclockwise via belt. The counterclockwise rotation of pulley 93-1 drives the small bevel gear 93-2 to rotate counterclockwise via the central rotating shaft 93.

[0086] Small bevel gear 3 (93-2) simultaneously drives small bevel gear 4 (94-1) to rotate clockwise and small bevel gear 6 (95-1) to rotate counterclockwise.

[0087] Small bevel gear 4 94-1 rotates clockwise, driving small bevel gear 5 94-2 to rotate clockwise via left pivot 94. Small bevel gear 6 95-1 rotates counterclockwise, driving small bevel gear 7 95-2 to rotate counterclockwise via right pivot 95.

[0088] Small bevel gear 5 94-2 drives the left conical roller 97 to rotate counterclockwise via small bevel gear 8 97-1; small bevel gear 7 95-2 drives the right conical roller 98 to rotate clockwise via small bevel gear 98-1.

[0089] The conical pressing and ditching device of the rotary tiller of the present invention opens a vague inverted isosceles trapezoidal ditch through the ditch opener 19. At the same time, the left rotary tillage shaft 1-1 and the right rotary tillage shaft 1-2 on both sides drive the rotary tillage blades to rotate clockwise to rotary till, break and mix the soil. Then, the pressing roller 72 performs the initial pressing on the ridge after rotary tillage. Then, the left conical roller 97 and the right conical roller 98 roll, shape, compact and trim the inclined surfaces on both sides of the ridge. The lower end of the T-shaped frame 96 scrapes and trims the bottom of the ridge, forming a standard inverted isosceles trapezoidal ridge that is wider at the top and narrower at the bottom with solid and smooth walls. At the same time, the ridge is finally pressed and leveled by the pressing arc plate 85-2, whose tilt angle can be adjusted by the telescopic component 85-3, to form a seedbed with appropriate tightness.

[0090] The conical pressing and ditching device of the rotary tiller of the present invention realizes the composite operation of ditching and rotary tillage, ridge pressing, ridge and furrow pressing and trimming and bed surface pressing in one operation. This achieves the long-term stability of the ridge and furrow shape, without affecting the subsequent irrigation, drainage and fertilization effect, and also ensures the soil compaction after rotary tillage and improves the soil moisture retention capacity.

[0091] Example 2:

[0092] Based on Example 1, the furrow opener 19 is a core mold type, which has a strong soil loosening ability and facilitates the compaction and shaping of the sloping surfaces on both sides of the furrow.

[0093] Example 3:

[0094] Based on Embodiment 1, the rotary tiller 1 is provided with a rear mudguard 16 at its rear end; the left side of the rear mudguard 16 is fastened to the left side plate 14, and the right side of the rear mudguard 16 is fastened to the right side plate 15. The rear mudguard 16 serves to block soil that is kicked up by the rotary tiller blades, ensuring the uniformity of soil breaking.

[0095] Example 4:

[0096] Based on Embodiment 1, the auxiliary traction frame 6 further includes a position adjustment plate 60, a rocker arm 61, a first corner buckle 62, and a second corner buckle 63. The front end of the rocker arm 61 is hinged to the front end of the auxiliary traction frame 6 via a pin. The rocker arm 61 passes through the position adjustment plate 60 and is locked to the position adjustment plate 60. The first corner buckle 62 is fastened to the rear end of the rocker arm 61. The second corner buckle 63 and the first corner buckle 62 simultaneously clamp the front auxiliary crossbeam 80 in the compaction plate assembly 8. Adjusting the position of the rocker arm 61 on the position adjustment plate 60 allows for adjustment of the depth of the compaction plate assembly 8 and the conical compaction mechanism 9. This achieves two effects: firstly, changing the compaction pressure to ensure soil moisture retention while avoiding soil compaction; and secondly, adjusting the furrow depth to adapt to different furrowing depth requirements.

[0097] Example 5:

[0098] Based on Embodiment 1, the scraper 74 is connected to the lower end of the upper and lower adjustment mechanism 73. The upper and lower adjustment mechanism 73 adjusts the upper and lower position of the scraper 74 to scrape off the mud wrapped around the pressing roller 72 and ensure the uniformity of pressing by the pressing roller.

[0099] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A conical pressing and ditching device for a rotary tiller (1), characterized in that: The device includes a rotary tiller (1), a first gearbox (2), a second gearbox (3), a main traction frame (4), a diagonal connecting rod (5), a secondary traction frame (6), a press roller assembly (7), a press plate assembly (8), and a conical press mechanism (9). The first gearbox (2) is fastened to the middle of the rotary tiller (1), and the second gearbox (3) is fastened to the lower end of the first gearbox (2). The main traction frame (4) is fastened to the upper end of the rotary tiller (1) through a U-shaped clamp. The secondary traction frame (6) is fastened to the upper end of the rotary tiller (1) on one hand through a U-shaped clamp, and fastened to the main traction frame (4) on the other hand through a diagonal connecting rod (5). The press roller assembly (7) is connected to the lower rear end of the rotary tiller (1). The press plate assembly (8) is fastened to the rear end of the secondary traction frame (6). The conical press mechanism (9) is connected to the press plate assembly (8) and is driven by the first gearbox (2).

2. The conical pressing and ditching device for a rotary tiller (1) according to claim 1, characterized in that: The rotary tiller (1) includes a front main crossbeam (10), a rear main crossbeam (11), a left connecting plate (12), a right connecting plate (13), a left side plate (14), a right side plate (15), and a rear mudguard (16). The left sides of the front main crossbeam (10) and the rear main crossbeam (11) are respectively fastened to the left connecting plate (12), and the right sides of the front main crossbeam (10) and the rear main crossbeam (11) are respectively fastened to the right connecting plate (13). The left side plate (14) is fastened to the left connecting plate (12), and the right side plate (15) is fastened to the right connecting plate (13). The left side of the rear mudguard (16) is fastened to the left side plate (14), and the right side of the rear mudguard (16) is fastened to the right side plate (15). The front main crossbeam (10) has a front frame plate (17) in the middle, and the rear main crossbeam (11) has a rear frame plate (18) in the middle. The first gearbox (2) is fastened to the front frame plate (17) and the rear frame plate (18). The rotary tiller (1) also includes a left rotary tillage shaft (1-1) and a right rotary tillage shaft (1-2), which are driven by the output section of the second gearbox (3). The other end of the left rotary tillage shaft (1-1) is connected to the left side plate (14) through a bearing, and the other end of the right rotary tillage shaft (1-2) is connected to the right side plate (15) through a bearing.

3. The conical pressing and ditching device for a rotary tiller (1) according to claim 1, characterized in that: The auxiliary traction frame (6) also includes a position adjustment plate (60), a rocker arm (61), a first corner buckle (62) and a second corner buckle (63). The front end of the rocker arm (61) is hinged to the front end of the auxiliary traction frame (6) through a pin. The rocker arm (61) passes through the position adjustment plate (60) and is locked to the position adjustment plate (60). The first corner buckle (62) is fastened to the rear end of the rocker arm (61). The second corner buckle (63) and the first corner buckle (62) simultaneously clamp the front auxiliary crossbeam (80) in the pressing plate assembly (8).

4. The conical pressing and ditching device for a rotary tiller (1) according to claim 3, characterized in that: The press roller assembly (7) includes a left L plate (70), a right L plate (71), a press roller (72), an up-down adjustment mechanism (73), and a scraper (74). The left L plate (70) is fastened to the left side plate (14), and the right L plate (71) is fastened to the right side plate (15). One end of the press roller (72) is connected to the left L plate (70) through a bearing, and the other end is connected to the right L plate (71) through a bearing. The up-down adjustment mechanism (73) is fastened to the front auxiliary crossbeam (80) through a U-shaped clamp. The scraper (74) is connected to the lower end of the up-down adjustment mechanism (73), and the up-down adjustment mechanism (73) adjusts the up-down position of the scraper (74).

5. The conical pressing and ditching device for a rotary tiller (1) according to claim 3, characterized in that: The press plate assembly (8) includes a front sub-beam (80), a rear sub-beam one (81), a rear sub-beam two (82), a left rear plate (83), a right rear plate (84), and a press plate mechanism (85). One end of the front sub-beam (80), the rear sub-beam one (81), and the rear sub-beam two (82) are respectively fastened to the left rear plate (83), and the other end of the front sub-beam (80), the rear sub-beam one (81), and the rear sub-beam two (82) are respectively fastened to the right rear plate (84). The press plate mechanism (85) is provided in two sets, and is located on both sides of the conical press plate mechanism (9).

6. The conical pressing and ditching device for a rotary tiller (1) according to claim 5, characterized in that: The pressing plate mechanism (85) includes a frame (85-1), a pressing arc plate (85-2), and a telescopic component (85-3). The frame (85-1) is fastened to the rear auxiliary crossbeam (82). The frame (85-1) is provided with a hinge seat one (85-10). The pressing arc plate (85-2) is provided with a hinge seat two (85-20) and a hinge seat three (85-21). The hinge seat one (85-10) and the hinge seat two (85-20) are hinged together. The fixed end of the telescopic component (85-3) is hinged to the rear end of the rocker arm (61), and the telescopic end of the telescopic component (85-3) is hinged to the hinge seat three (85-21). The telescopic component (85-3) is a cylinder, a hydraulic cylinder, or an electric push rod.

7. The conical pressing and ditching device for a rotary tiller (1) according to claim 5, characterized in that: The front sub-beam (80) is provided with a first bearing seat (9-1) in the middle, the rear sub-beam (82) is provided with a second bearing seat (9-2) in the middle, and the rear sub-beam (82) on both sides of the second bearing seat (9-2) is provided with a third bearing seat (9-3). The conical pressing mechanism (9) includes a universal joint (90), a splined shaft (91), an outer rotating shaft (92), a central rotating shaft (93), a left rotating shaft (94), a right rotating shaft (95), a T-shaped frame (96), a left conical roller (97), and a right conical roller (98). The front end of the universal joint (90) is connected to the rear output shaft end of the second gearbox (3). The front end of the splined shaft (91) is fastened to the rear end of the universal joint (90). The rear end of the splined shaft (91) is inserted into the outer rotating shaft (92) through a spline and is axially slidably connected to the outer rotating shaft (92). The outer rotating shaft (92) is connected to the first shaft seat (9-1) by a bearing, and the end of the outer rotating shaft (92) is provided with a pulley (92-1). The central shaft (93) is connected to the second shaft seat (9-2) by bearings. The central shaft (93) is provided with pulley two (93-1) and small bevel gear three (93-2). The pulley one (92-1) and pulley two (93-1) are connected by belt. The left rotating shaft (94) is connected to the third shaft seat (9-3) on the left side through a bearing. One end of the left rotating shaft (94) is provided with a small bevel gear four (94-1), and the other end is provided with a small bevel gear five (94-2). The small bevel gear four (94-1) meshes with the small bevel gear three (93-2). The right rotating shaft (95) is connected to the third shaft seat (9-3) on the right side through a bearing. One end of the right rotating shaft (95) is provided with a small bevel gear six (95-1) and the other end is provided with a small bevel gear seven (95-2). The small bevel gear six (95-1) meshes with the small bevel gear three (93-2). The upper end of the T-shaped frame (96) is fastened to the middle of the second rear crossbeam (82); The upper end of the left conical roller (97) is connected to the second rear crossbeam (82) via a bearing seat, and the lower end of the left conical roller (97) is connected to the T-shaped frame (96) via a bearing seat; the upper end of the left conical roller (97) is provided with a small bevel gear eight (97-1), and the small bevel gear eight (97-1) meshes with the small bevel gear five (94-2); The upper end of the right conical roller (98) is connected to the second rear crossbeam (82) via a seated bearing, and the lower end of the right conical roller (98) is connected to the T-shaped frame (96) via a seated bearing; the upper end of the right conical roller (98) is provided with a small bevel gear nine (98-1), and the small bevel gear nine (98-1) meshes with the small bevel gear seven (95-2).

8. The conical pressing and ditching device for a rotary tiller (1) according to claim 7, characterized in that: A tensioning seat plate (9-4) is provided below the first bearing seat (9-1), a tensioning frame (9-5) is provided on the tensioning seat plate (9-4), a tensioning wheel (9-6) is provided on the tensioning frame (9-5), and the tensioning wheel (9-6) tensions the belt.

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