CN110249729B - Rotary tillage ditching system of full-automatic transplanting combined machine - Google Patents
Rotary tillage ditching system of full-automatic transplanting combined machine Download PDFInfo
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- CN110249729B CN110249729B CN201910509375.3A CN201910509375A CN110249729B CN 110249729 B CN110249729 B CN 110249729B CN 201910509375 A CN201910509375 A CN 201910509375A CN 110249729 B CN110249729 B CN 110249729B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/02—Combined machines with two or more soil-working tools of different kind
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Abstract
The invention discloses a rotary tillage ditching system of a full-automatic transplanting combined machine, which comprises a rotary tillage ditching mechanism and is characterized by further comprising a micro soil preparation narrow ditching mechanism arranged behind the rotary tillage ditching mechanism. The rotary tillage ditching mechanism is provided with a rotary tillage cutter shaft, the middle part of the rotary tillage cutter shaft is provided with a middle ditching cutter head for ditching furrows, and rotary tillage cutter groups are arranged on two sides of the rotary tillage cutter shaft; the micro soil preparation mechanism comprises a soil crushing roller, a soil scraping device of the soil crushing roller and a soil flattening and slitting roller. The rotary tillage ditching system of the combined machine can orderly rotary tillage and water drainage ditches (ditches), fine crushing and flattening and narrow slit cutting of uncut lands under the drive of traction equipment such as a tractor and the like until the soil state required by the subsequent transplanting operation is formed, has good shaping effect on the soil, is not easy to clay, has low maintenance frequency, can continuously work for a long time and effectively improves the working efficiency. Meanwhile, the rotary tillage ditching system has the advantages of reasonable structure planning and easiness in production, manufacture, management and maintenance.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a rotary tillage ditching system of a full-automatic transplanting combined operation machine.
Background
The rotary tillage ditching system is a stock mechanism of the combined working machine, is matched with a planting unit and the like loaded at the rear of the combined working machine, can finish the working operations of tillage, raking, ditching, ridging, leveling and the like according to the mechanism setting, provides good ground surface conditions for the planting mechanism, can remarkably improve the working efficiency, and has the advantages of reducing the energy consumption, reducing the number of times of unit placement and compaction of soil by machinery and the like, so that the rotary tillage ditching system is widely applied.
Disclosure of Invention
The technical purpose of the invention is to provide a novel rotary tillage ditching system for a full-automatic transplanting combined operation machine, which has the technical scheme that:
the rotary tillage ditching system of the full-automatic transplanting combined machine comprises a rotary tillage ditching mechanism and is characterized by further comprising a micro soil preparation narrow ditching mechanism arranged behind the rotary tillage ditching mechanism;
the rotary tillage ditching mechanism is provided with a rotary tillage cutter shaft, the middle part of the rotary tillage cutter shaft is provided with a middle ditching cutter head for ditching furrows, and rotary tillage cutter groups are arranged on two sides of the rotary tillage cutter shaft; the micro soil preparation narrow ditch opening mechanism comprises a soil crushing roller, a soil scraping device of the soil crushing roller and a soil flattening kerf roller;
the soil crushing roller consists of a left roller body and a right roller body which are arranged on a soil crushing roller shaft, a certain interval is reserved between the left roller body and the right roller body, and the interval corresponds to a middle ditching cutter head on a front rotary tillage cutter shaft; the right roller body is provided with a plurality of unit sections with spiral blades on the surfaces along the axial direction, adjacent unit sections and the outermost unit sections are separated from the end part of the right roller body through annular grooves, the section of each annular groove in the radial direction of the right roller body is trapezoid, and two bottom edges of each trapezoid are wide outside and narrow inside; the left roller body and the right roller body are symmetrical in structure; two ends of the soil crushing roller shaft are connected with the transmission mechanism, and are driven to rotate by the driving mechanism;
the soil scraping device of the soil crushing roller is provided with a scraping plate, and the scraping plate is parallel to the soil crushing roller and is arranged at a position close to the spiral blade and used for removing the soil adhered on the spiral blade;
the soil-leveling slitting roller is provided with a plurality of coaxial and concentric circular cutterheads along the axial direction of the soil-leveling slitting roller, soil-pressing roller bodies are arranged between adjacent circular cutterheads and between the outermost circular cutterheads and the end part of the soil-leveling slitting roller, the surfaces of the soil-pressing roller bodies are covered with rubber layers, and the hardness of the rubber layers is 60-70 degrees; the positions of the circular cutterheads on the soil-flattening slitting roller are in one-to-one correspondence with the annular grooves on the front soil crushing roller.
In addition to the above, a further improved or preferred embodiment further includes:
the helix angle α of the helical blade is set to 24 °.
The spiral blade on the right roller body is a left-handed thread, the spiral blade on the left roller body is a right-handed thread, and the rotation direction of the soil crushing roller is the same as the advancing direction of the combined machine.
The spiral trend of the spiral blades on the adjacent unit sections of the left roller body and the right roller body is in a connection relationship.
The left roller body and the right roller body are sleeved on the soil crushing roller shaft through central shaft holes and are fixed on the soil crushing roller shaft through locking devices. The locking device comprises two groups of auxiliary plates which are respectively used for fixing the left roller body and the right roller body. The auxiliary plates comprise a regular polygon outer auxiliary plate and a round inner auxiliary plate, the regular polygon outer auxiliary plate is fixed at the end part of the soil crushing roller shaft, and the round inner auxiliary plate is fixed at the middle part of the soil crushing roller shaft. The shaft hole of the left/right roller body is formed by connecting an inner section and an outer section, wherein the inner Duan Zhoukong is a round hole, and the size of the round hole is larger than that of the shaft hole of the outer section. The outer section shaft hole is regular polygon consistent with the shape of the outer auxiliary plate, so that the regular polygon outer auxiliary plate can pass through the whole section shaft hole.
The diameter of the circular inner auxiliary plate is larger than that of the inner section shaft hole, and the outer edge of the circular inner auxiliary plate is fixed on the inner end face of the left/right roller body through bolts. The sharp angle of the regular polygon outer auxiliary plate is provided with a screw hole, and after the regular polygon outer auxiliary plate is staggered with the outer section shaft hole, the sharp angle of the regular polygon outer auxiliary plate is fixed on the outer end face of the left/right roller body through a bolt.
The shapes of the regular polygon outer auxiliary plate and the outer section shaft hole are preferably triangular.
The rotary tillage ditching mechanism is provided with a ditch cleaning shovel, a soil retaining cover shell and a soil throwing cover shell. The soil throwing cover is provided with an arc-shaped baffle plate, the arc-shaped baffle plate is arched upwards and is bent towards the advancing direction of the combined machine, and the soil shoveled by the soil cleaning shovel is guided forwards; the soil retaining cover is arranged between the rotary tillage cutter group and the soil crushing roller and used for blocking and flattening the soil turned up by rotary tillage, and comprises two shells which are respectively positioned at the left side and the right side of the soil throwing cover, and the bottoms of the shells are in a zigzag shape.
The beneficial effects are that:
the rotary tillage ditching system of the full-automatic transplanting combined operation machine can orderly rotary tillage and water drainage ditches (furrow ditches), fine crushing and flattening and narrow slit cutting of uncultivated lands under the drive of traction equipment such as a tractor and the like until the soil state required by the subsequent transplanting operation is formed, has good shaping effect on the soil, is not easy to clay, has low maintenance frequency, can continuously work for a long time and effectively improves the working efficiency. Meanwhile, the rotary tillage ditching system of the full-automatic transplanting combined machine has the advantages of reasonable structure planning and easiness in production, manufacture, management and maintenance, and is particularly suitable for high-speed transplanting operation of blanket seedlings of crops such as rapes.
Drawings
FIG. 1 is a schematic diagram of a structure of a rotary tillage ditching system installed on a full-automatic transplanting combined machine;
FIG. 2 is a schematic diagram of the construction and workflow of a rotary tillage ditching system;
FIG. 3 is a schematic structural view of a rotary tillage furrowing mechanism;
FIG. 4 is a schematic structural view of a micro-soil narrow-ditch-opening mechanism;
FIG. 5 is a schematic view of the construction of the soil breaking roller;
FIG. 6 is a right side view of the right roller body of the soil breaking roller;
FIG. 7 is a left side view of the right roller body of the soil breaking roller;
FIG. 8 is a front view of the right roller body of the soil breaking roller;
FIG. 9 is a schematic view of the construction of a soil breaking roller shaft;
FIG. 10 is a schematic view of the construction of a plain soil slitting roller;
FIG. 11 is a schematic transmission diagram of a rotary tillage ditching system.
Description of the embodiments
In order to further clarify the technical scheme and working principle of the present invention, the present invention will be further described with reference to the drawings and the specific embodiments.
The full-automatic transplanting combined operation machine shown in fig. 1 comprises a tractor, a frame, a hydraulic driving system, a seedling rack, a rotary tillage ditching system, a transplanting system, a soil covering and compacting system, a land wheel speed measuring mechanism 306 and the like which are arranged on the frame, wherein the frame is connected with the tractor through a three-point suspension mechanism 302 and is driven by the tractor to pull.
Wherein, rotary tillage ditching system includes rotary tillage ditching mechanism and sets up the narrow ditch mechanism of little soil preparation at rotary tillage ditching mechanism rear. The rotary tillage ditching mechanism is provided with a rotary tillage cutter shaft 311, a ditch cleaning shovel 316, a soil retaining cover 303, a soil throwing cover 317 and the like; the micro-soil narrow-ditch-opening mechanism comprises a soil crushing roller 503, a soil crushing roller scraping device 502, a soil flattening slitting roller 504 and the like.
The two ends of the rotary tillage cutter shaft 311 are arranged on a bracket 304 connected with the frame through bearings, the two ends of the roll shafts of the soil crushing roll 503 and the soil leveling slitting roll 504 are respectively arranged on a transition housing 509 and a chain wheel box housing 510, the structures of the transition housing 509 and the chain wheel box housing 510 are the same, and a transmission chain wheel is arranged in the chain wheel box housing 510. The transition housing 509 and the sprocket box housing 510 are respectively connected with the frame cantilever above through two hanging rods 507, and the upper and lower ends of the hanging rods 507 are hinged with the frame cantilever and the transition housing 509/sprocket box housing 510 through hinged supports. The bottom ends of the two hanging rods 507 are respectively positioned right above the roller shafts of the soil crushing roller 503 and the soil slitting roller 504, the hanging rods 507 are provided with a pressure spring 508, and the soil crushing roller 503 and the soil slitting roller 504 are pressed by a certain pressure through the pressure spring 508 so as to ensure the contact pressure between the hanging rods and soil.
As shown in fig. 3, a middle ditching cutter head 315 for ditching a furrow (i.e. a drainage ditch) is arranged in the middle of the rotary tillage cutter shaft 311, and a plurality of rotary tillage cutter groups 314 are arranged on two sides of the middle ditching cutter head. The rotary blade set 314 is composed of a plurality of blades arranged around the rotary blade shaft 311, and the blades are directly fixed on the rotary blade shaft 311. The middle ditching cutter head 315 is composed of a disc body and a plurality of blades arranged around the disc body, the blades are fixed at the edge part of the disc body, the disc body is fixedly arranged at the middle position of the rotary tillage cutter shaft 311 in a coaxial mode, the outer diameter of the middle ditching cutter head 315 is larger than the outer diameter of the rotary tillage cutter head 314, and the soil turning depth is larger than the outer diameter of the rotary tillage cutter head 314.
The ditch cleaning shovel 316 is arranged behind the middle ditching cutter head 315, the bottom of the ditch cleaning shovel 316 inclines towards the advancing direction of the combined machine, the top of the ditch cleaning shovel 316 is connected with the soil throwing cover casing 317, the soil throwing cover casing 317 is provided with an arc-shaped baffle, the arc-shaped baffle arches upwards and bends towards the advancing direction of the combined machine, the soil scooped by the ditch cleaning shovel 316 is guided forwards, and the scooped soil is pushed towards two sides of the ditch body.
The soil retaining housing 303 is disposed at the rear of the rotary blade set 314 and between the rotary blade set 314 and the soil crushing roller 503, and is used for blocking and flattening the soil turned up by rotary tillage, and comprises two housings respectively disposed at the left and right sides of the soil throwing housing 317, wherein the bottom of the housing is in a sawtooth structure in a horizontal row.
As shown in fig. 5, the soil breaking roller 503 is composed of a left roller body 511 and a right roller body 512 mounted on the soil breaking roller shaft 505, and a certain space is left between the left roller body and the right roller body, and the space is aligned with the middle ditching cutter head 315 on the front rotary tillage cutter shaft 311.
Taking the right roller 512 as an example, as shown in fig. 5 or 8, the right roller 512 is provided with three unit sections having spiral blades on the surfaces along the axial direction. The unit sections and the outermost unit section and the end part of the right roller body 512 are separated by annular grooves, the cross section of the annular grooves in the radial direction of the right roller body 512 is trapezoid, and two bottom edges of the trapezoid are wide in outer bottom edge and narrow in inner bottom edge. The structures of the left roller body 511 and the right roller body 512 are mirror symmetry with a central line between the left roller body 511 and the right roller body 512 as a center, the spiral blade on the right roller body 512 is a left-handed thread, the spiral blade on the left roller body 511 is a right-handed thread, and the spiral angle alpha of the spiral blade is 24 degrees. After the spiral blades on the adjacent unit sections of the left/right roller bodies are disconnected by the annular grooves, the spiral directions of the spiral blades are still connected. As shown in the figure, the spiral lines on the left roller body and the right roller body are multiple, and the connected blade sections are positioned on the same spiral line.
The two ends of the soil crushing roller soil scraping device 502 are fixedly arranged on the transition housing 509 and the chain wheel box housing 510 through supporting rods, a horizontal scraping plate is arranged in the middle of the soil crushing roller soil scraping device, the scraping plate is parallel to the soil crushing roller 503 and is arranged at a position close to the spiral blade for scraping the soil adhered on the spiral blade.
The left roller body and the right roller body are sleeved on the soil crushing roller shaft 505 through central shaft holes and can be detached and fixed on the soil crushing roller shaft 505 through locking devices.
As shown in fig. 9, the locking device includes two sets of auxiliary plates for fixing the left roller body and the right roller body, respectively. The auxiliary plates comprise a regular polygon outer auxiliary plate 514 and a round inner auxiliary plate 513, wherein the regular polygon outer auxiliary plate 514 is fixed at the end part of the soil crushing roller shaft 505 and is perpendicular to the soil crushing roller shaft 505 and concentric with the soil crushing roller shaft 505; the circular inner auxiliary plate 513 is fixed at a position near the middle of the soil breaking roll shaft 505, perpendicular to the soil breaking roll shaft 505, and concentric with the soil breaking roll shaft 505. The two circular inner auxiliary plates 513 are preceded by a spacing corresponding to the intermediate cutterhead 315. The shaft holes of the left roller body and the right roller body are formed by connecting inner and outer sections, wherein the inner Duan Zhoukong is a round hole, the size of the round hole is larger than that of the outer section shaft hole, the outer section shaft hole is a regular polygon consistent with the shape of the outer auxiliary plate, and the shaft centers of the inner section shaft hole and the outer section shaft hole are on the same axis, so that the regular polygon outer auxiliary plate 514 can pass through the whole section shaft hole.
The diameter of the circular inner auxiliary plate 513 is larger than that of the inner section shaft hole, and the outer edge part of the circular inner auxiliary plate can be fixed on the inner end surface of the left roller body or the right roller body through bolts. The sharp angle of the regular polygon outer auxiliary plate 514 is provided with a screw hole, and after the regular polygon outer auxiliary plate 514 is staggered with the outer section shaft hole, the sharp angle can be fixed on the outer end face of the left roller body or the right roller body through bolts.
The shapes of the regular polygon outer auxiliary plate 514 and the outer section shaft hole are preferably triangular, as shown in fig. 6 and 7. Taking the right roller body as an example, when the right roller body is installed, the right roller body is inserted from the right end of the soil crushing roller shaft 505, the inner auxiliary plate and the outer auxiliary plate sequentially penetrate through the shaft holes until the inner end face of the right roller body contacts with the round inner auxiliary plate 513, the right roller body is rotated, the regular polygon outer auxiliary plate 513 is staggered with the outer section shaft hole, the round inner auxiliary plate 513 is fixed on the inner end face of the right roller body through 4 bolts and preset screw holes, and the triangular outer auxiliary plate is fixedly connected with the outer end face of the right roller body through 3 bolts.
The soil-leveling slitting roller 504 is provided with a left circular cutter 515 and a right circular cutter 515 which are coaxial and concentric along the axial direction, and one circular cutter 515 comprises three circular cutters. A soil pressing roller body 516 is arranged between the adjacent circular cutterheads 515 and between the outermost circular cutterheads 515 and the end of the soil leveling slitting roller 504. The circular cutter 515 is provided with a wedge-shaped cutting edge, the surface of the soil pressing roller 516 is covered with a rubber layer with the thickness of 5mm, the material hardness of the rubber layer can be selected between 60 and 70 degrees, and the operation effect is optimal when the rubber hardness is 65 degrees through tests. The circular cutterheads 515 are aligned in a one-to-one relationship on the flat soil slitting roller 504 and the annular grooves on the soil crushing roller 503. In the working process, the wedge-shaped cutting edge of the circular cutter head 515 can effectively break stubble to form a narrow groove required by subsequent transplanting, and meanwhile, the 65-degree rubber layer of the soil pressing roller body 516 can effectively prevent clay.
As shown in fig. 11, the frame is provided with an intermediate gear box 310, which is in transmission connection with an engine of a tractor and provides a power source for the rotary tillage ditching system, and the left output end of the intermediate gear box 310 drives a primary chain transmission mechanism 307 and a secondary chain transmission mechanism 308 through a first transmission box 309 so as to drive a soil crushing roller shaft 505 to rotate; the right output end of the middle gear box 310 drives the rotary tillage cutter shaft 311 to rotate through a second transmission box 312; the right end of the soil breaking roll shaft 505 drives the soil-flattening kerf roll shaft 506 to rotate through the three-stage chain transmission mechanism 313. The rolling direction of the soil breaking roller 503 and the soil leveling slitting roller 504 is the same as the advancing direction of the combined machine. The rotational speed of the soil breaking roller 503 is 180-250 rpm, and the rotational speed of the soil flattening slitting roller 504 is slightly smaller than the rotational speed of the soil breaking roller.
As shown in fig. 2, the rotary tillage ditching system of the invention is driven by the power of the tractor to orderly rotary tillage ditche, finely crush, level and slit the uncut land until the soil state required by the subsequent transplanting operation is formed, and the rotary tillage ditching system is matched with the transplanting system and the earthing compacting system for use, so that the transplanting operation can be completed efficiently.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, the scope of which is defined in the appended claims, specification and their equivalents.
Claims (7)
1. The rotary tillage ditching system of the full-automatic transplanting combined machine comprises a rotary tillage ditching mechanism and is characterized by further comprising a micro soil preparation narrow ditching mechanism arranged behind the rotary tillage ditching mechanism;
the rotary tillage ditching mechanism is provided with a rotary tillage cutter shaft (311), the middle part of the rotary tillage cutter shaft (311) is provided with a middle ditching cutter head (315) for ditching furrows, and both sides of the rotary tillage cutter shaft are provided with rotary tillage cutter groups (314); the micro-soil narrow-ditch opening mechanism comprises a soil crushing roller (503), a soil crushing roller scraping device (502) and a soil leveling and slitting roller (504);
the soil crushing roller (503) consists of a left roller body (511) and a right roller body (512) which are arranged on a soil crushing roller shaft (505), a certain interval is reserved between the left roller body and the right roller body, and the interval corresponds to a middle ditching cutter head (315) on a front rotary tillage cutter shaft (311); the right roller body (512) is provided with a plurality of unit sections with spiral blades on the surfaces along the axial direction, adjacent unit sections and the outermost unit sections are separated from the end parts of the right roller body through annular grooves, the cross section of each annular groove in the radial direction of the right roller body (512) is trapezoid, and two bottom edges of each trapezoid are wide outside and narrow inside; the left roller body (511) and the right roller body (512) are symmetrical in structure; two ends of the soil crushing roller shaft (505) are connected with a transmission mechanism, and are driven to rotate by a driving mechanism;
the soil scraping device (502) of the soil crushing roller is provided with a scraping plate, the scraping plate is parallel to the soil crushing roller (503) and is arranged at a position close to the spiral blade and used for removing the soil adhered on the spiral blade;
the soil-leveling slitting roller (504) is provided with a plurality of coaxial and concentric circular cutterheads (515) along the axial direction of the soil-leveling slitting roller, a soil-pressing roller body (516) is arranged between every two adjacent circular cutterheads (515) and between the outermost circular cutterhead (515) and the end part of the soil-leveling slitting roller (504), the surface of the soil-pressing roller body (516) is covered with a rubber layer, and the hardness of the rubber layer is 60-70 degrees; the positions of the circular cutterheads (515) on the soil-flattening slitting roller (504) are in one-to-one correspondence with the annular grooves on the front soil crushing roller (503);
an intermediate gear box (310) is arranged on a frame of the full-automatic transplanting combined operation machine and is in transmission connection with an engine of the full-automatic transplanting combined operation machine to provide a power source for a rotary tillage ditching system, and the left output end of the intermediate gear box (310) drives a primary chain transmission mechanism (307) and a secondary chain transmission mechanism (308) through a first transmission box (309) to drive a soil crushing roller shaft (505) to rotate; the right output end of the middle gear box (310) drives the rotary tillage cutter shaft (311) to rotate through a second transmission box (312); the right end of the soil crushing roller shaft (505) drives the soil flattening and slitting roller shaft (506) of the soil flattening and slitting roller (504) to rotate through a three-stage chain transmission mechanism (313); the rolling direction of the soil breaking roller (503) and the soil leveling slitting roller (504) is the same as the advancing direction of the combined operation machine.
2. The rotary tillage and ditching system of a fully automatic transplanting combined machine according to claim 1, wherein the helix angle alpha of the helical blade is 24 degrees.
3. The rotary tillage and ditching system of a full-automatic transplanting combined machine according to claim 1, wherein the spiral blade on the right roller body (512) is a left-handed thread, the spiral blade on the left roller body (511) is a right-handed thread, and the rotation direction of the soil crushing roller (503) is the same as the advancing direction of the combined machine.
4. The rotary tillage furrowing system for a fully automatic transplanting combine as recited in claim 1, wherein the spiral orientation of the spiral blades on adjacent sections of the left/right roller body is in a linked relationship.
5. The rotary tillage ditching system of the full-automatic transplanting combined machine according to claim 1, wherein the left roller body and the right roller body are sleeved on a soil crushing roller shaft (505) through central shaft holes and are fixed on the soil crushing roller shaft (505) through locking devices;
the locking device comprises two groups of auxiliary plates which are respectively used for fixing the left roller body and the right roller body;
the group of auxiliary plates comprises a regular polygon outer auxiliary plate (514) and a round inner auxiliary plate (513), wherein the regular polygon outer auxiliary plate (514) is fixed at the end part of the soil crushing roller shaft (505), and the round inner auxiliary plate (513) is fixed at the middle part of the soil crushing roller shaft (505);
the shaft hole of the left/right roller body is formed by connecting an inner section and an outer section, wherein the inner Duan Zhoukong is a round hole, and the size of the round hole is larger than that of the shaft hole of the outer section; the outer section shaft hole is regular polygon consistent with the shape of the outer auxiliary plate, so that the regular polygon outer auxiliary plate (514) can pass through the whole section shaft hole;
the diameter of the circular inner auxiliary plate (513) is larger than that of the inner section shaft hole, and the outer edge of the circular inner auxiliary plate is fixed on the inner end face of the left/right roller body through bolts; the sharp angle of the regular polygon outer auxiliary plate (514) is provided with a screw hole, and after the regular polygon outer auxiliary plate (514) is staggered with the outer section shaft hole, the sharp angle of the regular polygon outer auxiliary plate is fixed on the outer end face of the left/right roller body through a bolt.
6. The rotary tillage furrowing system of a full automatic transplanting combined machine according to claim 5, wherein the regular polygon outer auxiliary plate (514) and the outer section shaft hole are triangular.
7. The rotary tillage and ditching system of the full-automatic transplanting combined machine according to claim 1, wherein the rotary tillage and ditching mechanism is provided with a ditch cleaning shovel (316), a soil retaining cover (303) and a soil throwing cover (317);
the ditch cleaning shovel (316) is arranged behind the middle ditching cutter head (315), the bottom of the ditch cleaning shovel (316) is inclined towards the advancing direction of the combined machine, the top of the ditch cleaning shovel (316) is connected with the soil throwing cover (317), the soil throwing cover (317) is provided with an arc-shaped baffle, the arc-shaped baffle is arched upwards and is bent towards the advancing direction of the combined machine, and the soil shoveled by the ditch cleaning shovel (316) is guided forwards;
the soil retaining cover (303) is arranged between the rotary tillage cutter group (314) and the soil crushing roller (503) and used for blocking and flattening the soil turned up by rotary tillage, and comprises two shells respectively positioned at the left side and the right side of the soil throwing cover (317), and the bottoms of the shells are in a saw-tooth shape.
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| CN201910509375.3A CN110249729B (en) | 2019-06-13 | 2019-06-13 | Rotary tillage ditching system of full-automatic transplanting combined machine |
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| CN201910509375.3A CN110249729B (en) | 2019-06-13 | 2019-06-13 | Rotary tillage ditching system of full-automatic transplanting combined machine |
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| CN115088407B (en) * | 2022-07-06 | 2024-03-22 | 农业农村部南京农业机械化研究所 | A kind of flat soil cutting device |
| CN115067000B (en) * | 2022-07-15 | 2024-01-09 | 农业农村部南京农业机械化研究所 | Rotary tillage operation device with ditching in middle |
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| Title |
|---|
| SGTN-180型旋耕埋草施肥联合作业机的设计与试验;李永磊;宋建农;王继承;张军奎;董向前;;中国农业大学学报(02);全文 * |
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| CN110249729A (en) | 2019-09-20 |
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