CN108142018B - wide seedling belt anti-blocking ditching seed discharging device with inclined rotary cutter and adjustable seedling belt width - Google Patents
wide seedling belt anti-blocking ditching seed discharging device with inclined rotary cutter and adjustable seedling belt width Download PDFInfo
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- CN108142018B CN108142018B CN201711435987.XA CN201711435987A CN108142018B CN 108142018 B CN108142018 B CN 108142018B CN 201711435987 A CN201711435987 A CN 201711435987A CN 108142018 B CN108142018 B CN 108142018B
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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
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
- A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
- A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/062—Devices for making drills or furrows
- A01C5/064—Devices for making drills or furrows with rotating tools
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sowing (AREA)
Abstract
The invention relates to a wide seedling belt anti-blocking ditching and seed discharging device with an inclined rotary cutter and adjustable seedling belt width. The device comprises a frame, a rear throwing anti-blocking unit, a ditching and seed-metering unit, a cutter shaft, a transmission unit, a three-point suspension unit and a gearbox; the rear throwing anti-blocking units are arranged on the cutter shaft at equal intervals; the rear throwing anti-blocking unit comprises a left rear throwing anti-blocking monomer and a right rear throwing anti-blocking monomer, the spacing distance of which can be adjusted, and the left rear throwing anti-blocking monomer comprises two left rotary cutters which are symmetrically arranged and can adjust the inclined angle; the right rear throwing anti-blocking monomer comprises two right rotary cutters which are symmetrically arranged and can adjust the inclined angle; a phase angle is formed between the left rotary cutter and the right rotary cutter; the rear part of each rear throwing anti-blocking unit corresponds to a ditching and seed discharging unit fixedly connected to a rear cross beam of the frame; the ditching and seed-metering unit comprises a ditcher and a seed metering device with an adjustable seed metering port. The seedling belt sowing machine has the advantages of low cost, simple structure, convenient adjustment of the inclined angle and the width of the seedling belt, and realization of cleaning and sowing of the seedling belt with different widths.
Description
Technical Field
the invention belongs to the technical field of agricultural machinery, and particularly relates to a wide seedling belt anti-blocking ditching and seed discharging device with an adjustable oblique angle of a rotary cutter and adjustable width of a seedling belt.
Background
Under the protective farming condition, the wide seedling belt seeding can utilize the side-row benefit, promote the growth of wheat colony and reduce the soil disturbance at the same time. But for different soil types and ground surface straw coverage, the required seedling belt width is different, and the seedling belt straw needs to be cleaned, thereby improving the seeding quality and improving the wheat growth environment. The oblique rotary tillage can reduce the operation resistance of the whole machine and reduce the power consumption, and the anti-blocking mechanism can throw straws to non-seedling belts on two sides of the seedling belt before being used for the seeder, so that the purposes of cleaning the seedling belt and preventing blocking are achieved, and meanwhile, soil is loosened by screwing, and ditching, fertilizing and seeding are facilitated. The inclined angle of the rotary cutter is different for different soil straw conditions and different clean seedling belt widths. Therefore, the anti-blocking ditching and seed discharging device suitable for different seedling belt widths under different soil and straw conditions is urgently needed.
the Chinese patent application CN105409405A discloses a uniform seed distributor for wide-seedling-zone sowing of wheat, which utilizes a seed-metering cone and a partition plate to divide the partition plate into a plurality of seed-metering grooves, so that seeds in the seed pipes are uniformly dispersed, and the sowing uniformity can be improved. The method has the defect that the width of the seedling zone is not adjustable, and the seeding requirement under different soil straw conditions can not be met.
The Chinese patent application CN106717321A discloses an inclined combined straight knife type belt cleaning anti-blocking device, which welds knife seats of rotary knives with different lengths on a shaft sleeve at a certain angle, throws straws on the belts to non-belts on two sides, thereby preventing blocking and cleaning a seeding belt. But the angle of the device is not adjustable, the ditching line spacing is also not adjustable, and the device can not adapt to different soil and straw conditions.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide the wide seedling belt anti-blocking ditching seed discharging device with the inclined rotary cutter and adjustable seedling belt width, which is low in cost, simple in structure, convenient to adjust the inclined angle and the seedling belt width and capable of cleaning and sowing the seedling belts with different widths.
in order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a broad seedling band anti-blocking ditching and seed discharging device with an inclined rotary cutter and adjustable seedling band width, which comprises a rack 1, a rear throwing anti-blocking unit 3, a ditching and seed discharging unit 4, a cutter shaft 5, a transmission unit 6, a three-point suspension unit 7 and a gearbox 8;
The three-point suspension unit 7 and the gearbox 8 are fixed on the upper part of the frame 1;
the cutter shaft 5 is horizontally arranged below the rack 1 and is in rotary connection with the left side plate and the right side plate of the rack 1;
The rear throwing anti-blocking units 3 are arranged on the cutter shaft 5 at equal intervals, and power drives the cutter shaft 5 to rotate through the transmission unit 6 through the gearbox 8;
The back-throwing anti-blocking unit 3 comprises a left back-throwing anti-blocking monomer and a right back-throwing anti-blocking monomer, the spacing distance of which can be adjusted, and the left back-throwing anti-blocking monomer comprises two left rotary cutters which are symmetrically arranged and can adjust the inclined angle; the right rear throwing anti-blocking monomer comprises two right rotary cutters which are symmetrically arranged and can adjust the inclined angle; a phase angle is formed between the left rotary cutter and the right rotary cutter;
The rear part of each rear throwing anti-blocking unit 3 corresponds to a ditching and seed discharging unit 4 fixedly connected on a rear cross beam of the frame 1; the ditching and seed-metering unit 4 comprises a ditcher 401 and a seed meter 402 with an adjustable seed metering opening width.
The arrangement number of the rear throwing anti-blocking units 3 on the cutter shaft 5 is even; in the axial direction of the cutter shaft 5, the left rotary cutter and the right rotary cutter of the left rear throwing anti-blocking monomer and the right rear throwing anti-blocking monomer of each rear throwing anti-blocking unit 3 are arranged in a double-helix mode.
During operation, at least one of the left rotating knife and the right rotating knife can simultaneously enter the soil.
The left rear throwing anti-blocking monomer and the right rear throwing anti-blocking monomer are respectively composed of two rotary cutter assembling monomers 301; the rotary cutter assembling unit 301 comprises a rotary cutter 302, a cutter holder 303, a cutter holder base 307 and a half shaft sleeve 308;
The rotary cutter 302 is fixed on the cutter holder 303; the tool apron base 307 is a round base, and a base boss 334 taking the diameter of the tool apron base 307 as an axis is arranged in the middle of the upper end face of the tool apron base; the tool apron 303 is vertically and fixedly connected to a base boss 334 on the middle part of the upper end surface of the tool apron base 307, and the blade direction of the rotary knife 302 is consistent with the axial direction of the base boss 334;
A plurality of pairs of upper positioning holes which are symmetrical with respect to the center of the tool holder base 307 are respectively formed on both sides of the base boss 334 in the circumferential direction of the tool holder base 307;
The half shaft sleeves 308 of the pair of rotary cutter assembling units 301 are correspondingly arranged relative to the cutter shaft 5;
A base circular surface corresponding to the tool apron base 307 is arranged in the middle of the upper surface of the half shaft sleeve 308, and a plurality of pairs of lower positioning holes which are symmetrical about the circle center of the base circular surface are arranged on the base circular surface along the circumferential direction of the base circular surface;
The fastening screw 306 is passed through the upper positioning hole of the tool holder base 307 and the lower positioning hole of the half sleeve 308, so that the tool holder base 307 and the half sleeve 308 are fixedly connected.
Through the alignment and combination of different upper positioning holes and lower positioning holes, the rotary cutter assembly unit 301 comprises at least four stages of rotary cutter inclined angle adjustment.
The rotary cutter assembling single body 301 comprises four-gear adjusting rotary cutter inclined angles of 0 degree, 10 degrees, 20 degrees and 30 degrees.
A pair of first upper positioning holes 331, a pair of second upper positioning holes 332, and a pair of third upper positioning holes 333 are provided on both sides of the base boss 334 of the tool holder base 307 in the circumferential direction of the tool holder base 307, respectively; on the base circular surface of the half sleeve 308, a pair of first lower positioning holes 321, a pair of second lower positioning holes 322, a pair of third lower positioning holes 323, and a pair of fourth lower positioning holes 324 are provided along the circumferential direction thereof;
Wherein, the connecting line between the two second upper positioning holes 332 is vertical to the axis of the boss 334 of the base station, the connecting line between the two first upper positioning holes 331 and the connecting line between the two second upper positioning holes 332 form an angle of 36 degrees, and the connecting line between the two third upper positioning holes 333 and the connecting line between the two second upper positioning holes 332 form an angle of-36 degrees;
A connecting line between the two second lower positioning holes 322 is parallel to the cutter shaft 5, an included angle of 26 degrees is formed between a connecting line between the two first lower positioning holes 321 and a connecting line between the two second lower positioning holes 322, an included angle of-30 degrees is formed between a connecting line between the two third lower positioning holes 323 and a connecting line between the two second lower positioning holes 322, and an included angle of-56 degrees is formed between a connecting line between the two fourth lower positioning holes 324 and a connecting line between the two second lower positioning holes 322;
The second upper positioning hole 332 is aligned with the second lower positioning hole 322, and the inclined angle of the rotary cutter is 0 °;
the first upper positioning hole 331 is aligned with the first lower positioning hole 321, and the inclined angle of the rotary cutter is 10 degrees;
The third upper positioning hole 333 is aligned with the fourth lower positioning hole 324, and the inclined angle of the rotary cutter is 20 degrees;
The second upper positioning hole 332 is aligned with the third lower positioning hole 323, and the angle of the inclined rotary cutter is 30 °.
Preferably, the number of the rear-throwing anti-blocking units 3 is four, and the distance between the rear-throwing anti-blocking units is 300 mm; the phase angle between the left rotating knife and the right rotating knife is 45 degrees.
the seed metering device 402 comprises a seed metering opening guide plate 403 and a seed metering opening side plate 404, wherein guide plate extension plates 407 for extending the length of the lower edge of the seed metering opening guide plate 403 are fixedly connected to two sides of the seed metering opening side plate 404.
Preferably, a baffle 2 fixedly connected on the frame 1 is arranged above the rear throwing anti-blocking unit 3 and the ditching and seed sowing unit 4.
compared with the prior art, the invention has the beneficial effects that:
(1) the angle of the inclined rotary cutter on the back-throwing anti-blocking unit is convenient to adjust, four-gear adjustment of 0 degree, 10 degrees, 20 degrees and 30 degrees can be realized, the width of the seedling belt of the ditching and seed-metering unit is convenient to adjust, seeding of four seedling belt widths of 60mm, 80mm, 100mm and 120mm can be realized, and the back-throwing anti-blocking unit is matched with the ditching and seed-metering unit to realize cleaning of the seedling belt with different widths and ditching and seeding;
(2) The replacement of a standard tool apron and a rotary blade can be realized, the adjusting mode is easy to operate, and the structure of the machine is simple;
(3) The rotary cutters are symmetrically arranged, so that the problems of unbalanced stress and inclination to one side of the inclined rotary tillage are solved;
(4) The shaft sleeve can be disassembled and replaced, the ditching row spacing is adjusted, the front-back spacing between the back-throwing anti-blocking unit and the ditching seed-metering unit is adjustable, and the operation is convenient.
drawings
FIG. 1 is a schematic perspective view of a wide seedling belt anti-blocking ditching and seed discharging device with an inclined rotary cutter and adjustable seedling belt width according to the present invention;
FIG. 2 is a top view of the broad seedling band anti-blocking ditching and seed discharging device with the inclined angle of the rotary cutter and the adjustable width of the seedling band;
Fig. 3 is an exploded view of the rotary cutter mounting unit 301;
FIG. 4 is a schematic view of a tool holder base 307;
fig. 5 is a schematic structural view of the bushing 308;
Fig. 6a is a schematic structural diagram of the 0 ° rear-throwing anti-blocking unit 3;
Fig. 6b is a schematic structural diagram of the 10 ° back-throwing anti-blocking unit 3;
Fig. 6c is a schematic structural diagram of the 20 ° rear-throwing anti-blocking unit 3;
fig. 6d is a schematic structural diagram of the 30 ° rear-throwing anti-blocking unit 3;
Fig. 7 is a schematic arrangement diagram of the rotary cutters of the back-throwing anti-blocking unit 3;
FIG. 8 is a schematic layout of the ditching and seed discharging unit 4;
FIG. 9 is a schematic diagram of a seed meter 402;
FIG. 10a is a schematic view of a side plate 404 of the seed discharge port;
Fig. 10b is a schematic structural view of the seed discharge port side plate 404 having a guide plate extension plate 407.
Wherein the reference numerals are:
1 frame 2 baffle
3 rear-throwing anti-blocking unit 301 rotating cutter assembly monomer
302 rotating knife 303 knife holder
304 first bolt 305 first nut
306 fastening screw 307 tool apron base
308 half shaft sleeve 309 shaft sleeve lug
310 threaded hole 311 second nut
312 second bolt 321 first lower positioning hole
322 second lower positioning hole 323 and third lower positioning hole
324 fourth bottom positioning hole 331 first top positioning hole
332 second Upper positioning hole 333 third Upper positioning hole
334 base table projection 4 ditching and seed sowing unit
401 furrow opener 402 seed sowing device
403 seed outlet guide plate 404 seed outlet side plate
405 third bolt 406 third nut
407 guide plate extension plate 5 cutter shaft
6 transmission unit 7 three-point suspension unit
8 adjustable crossbeam of gearbox 9
901 rigid coupling board 902 "U" shaped bolt
v direction of rotation of the cutter shaft 5
Detailed Description
the invention is further illustrated with reference to the following figures and examples.
As shown in figures 1 and 2, the wide seedling belt anti-blocking ditching and seed discharging device with the inclined rotary cutter and adjustable seedling belt width comprises a rack 1, a rear throwing anti-blocking unit 3, a ditching and seed discharging unit 4, a cutter shaft 5, a transmission unit 6, a three-point suspension unit 7 and a gearbox 8.
The frame 1 comprises a front cross beam, a rear cross beam, a left side plate, a right side plate, a left longitudinal beam and a right longitudinal beam.
the three-point suspension unit 7 and the gearbox 8 are fixed on the upper part of the frame 1.
the cutter shaft 5 is horizontally arranged below the frame 1 and is rotationally connected with the left side plate and the right side plate of the frame 1.
the rear throwing anti-blocking units 3 are arranged on the cutter shaft 5 at equal intervals, and the cutter shaft 5 is driven to rotate by power through the transmission unit 6 through the gearbox 8.
The back-throwing anti-blocking unit 3 comprises a left back-throwing anti-blocking monomer and a right back-throwing anti-blocking monomer, the spacing distance of which can be adjusted, and the left back-throwing anti-blocking monomer comprises two left rotary cutters which are symmetrically arranged and can adjust the inclined angle; the right rear throwing anti-blocking monomer comprises two right rotary cutters which are symmetrically arranged and can adjust the inclined angle; a phase angle is formed between the left rotary cutter and the right rotary cutter.
The arrangement number of the rear throwing anti-blocking units 3 on the cutter shaft 5 is even; in the axial direction of the cutter shaft 5, the left rotary cutter and the right rotary cutter of the left rear throwing anti-blocking monomer of each rear throwing anti-blocking unit 3 are arranged in a double-helix manner, namely two left rotary cutters of the left rear throwing anti-blocking monomer are respectively arranged on two helix lines; two right-handed rotary cutters of the right rear throwing anti-blocking monomer are respectively arranged on the other two spiral lines.
During operation, at least one of the left rotating knife and the right rotating knife can simultaneously enter the soil.
The rear part of each rear throwing anti-blocking unit 3 corresponds to a ditching and seed sowing unit 4 fixedly connected on a rear cross beam of the frame 1.
Preferably, a baffle 2 fixedly connected to the frame 1 is arranged above the rear throwing anti-blocking unit 3 and the ditching and seed sowing unit 4, and is used for preventing soil from splashing.
Preferably, the rear cross beam of the frame 1 is an adjustable cross beam 9 capable of adjusting the distance between the rear cross beam and the front cross beam, so as to adjust the distance between the ditching and seeding unit 4 and the rear throwing anti-blocking unit 3. The adjustable cross beam 9 is fixedly connected to the left and right longitudinal beams of the frame 1 in a position-adjustable manner through fixing plates 901 and U-shaped bolts 902 at two ends of the adjustable cross beam.
The left rear throwing anti-blocking monomer and the right rear throwing anti-blocking monomer are respectively composed of two rotary cutter assembling monomers 301. As shown in fig. 3, the rotary cutter assembling unit 301 includes a rotary cutter 302, a cutter holder 303, a cutter holder base 307, and a half shaft sleeve 308.
The rotary cutter 302 is fixed on the cutter holder 303 through a first bolt 304 and a first nut 305; the tool apron base 307 is a round base, and a base boss 334 taking the diameter of the tool apron base 307 as an axis is arranged in the middle of the upper end face of the tool apron base; the tool post 303 is vertically fixed on the base boss 334 at the middle of the upper end surface of the tool post base 307, and the blade direction of the rotary knife 302 is consistent with the axial direction of the base boss 334.
A plurality of pairs of upper positioning holes, which are symmetric with respect to the center of the tool holder base 307, are provided on both sides of the base boss 334 in the circumferential direction of the tool holder base 307, respectively.
As shown in fig. 4, a pair of first upper positioning holes 331, a pair of second upper positioning holes 332, and a pair of third upper positioning holes 333 are provided on both sides of the base boss 334 in the circumferential direction of the tool post base 307, respectively; each pair of upper positioning holes is symmetrical with respect to the center of the tool rest base 307. The connecting line between the two second upper positioning holes 332 is perpendicular to the axis of the boss 334 of the base, the connecting line between the two first upper positioning holes 331 and the connecting line between the two second upper positioning holes 332 form an angle of 36 degrees, and the connecting line between the two third upper positioning holes 333 and the connecting line between the two second upper positioning holes 332 form an angle of-36 degrees.
As shown in fig. 5, two ends of the half shaft sleeve 308 are provided with shaft sleeve ears 309, and the shaft sleeve ears 309 are provided with threaded holes 310. The half-shaft sleeves 308 of the pair of rotary cutter assembling units 301 are arranged correspondingly to the cutter shaft 5 and fixed on the cutter shaft 5 by the fastening action of the second bolts 312 and the second nuts 311 which penetrate through the threaded holes 310 on the shaft sleeve lugs 309.
the middle part of the upper surface of the half shaft sleeve 308 is provided with a base platform round surface corresponding to the tool apron base platform 307, and a plurality of pairs of lower positioning holes which are symmetrical about the circle center of the base platform round surface are arranged on the base platform round surface along the circumferential direction of the base platform round surface.
Specifically, on the base circular surface, a pair of first lower positioning holes 321, a pair of second lower positioning holes 322, a pair of third lower positioning holes 323, and a pair of fourth lower positioning holes 324 are provided along the circumferential direction thereof; each pair of lower positioning holes is symmetrical about the circle center of the round surface of the base station. A connecting line between the two second lower positioning holes 322 is parallel to the cutter shaft 5, a connecting line between the two first lower positioning holes 321 and a connecting line between the two second lower positioning holes 322 form an included angle of 26 degrees, a connecting line between the two third lower positioning holes 323 and a connecting line between the two second lower positioning holes 322 form an included angle of-30 degrees, and a connecting line between the two fourth lower positioning holes 324 and a connecting line between the two second lower positioning holes 322 form an included angle of-56 degrees.
the set screw 306 passes through the upper positioning hole on the tool apron base 307 and the lower positioning hole on the half shaft sleeve 308, so that the tool apron base 307 is fixedly connected with the half shaft sleeve 308, and the inclined angle of the rotary cutter is adjusted by aligning and combining different upper positioning holes and different lower positioning holes.
the rotating cutters 302 of the rotating cutter assembling single bodies 301 of the left rear throwing anti-blocking single body and the right rear throwing anti-blocking single body can be adjusted in the same method. The adjustment of the slanting angle of the rotary cutter 302 of one rotary cutter mounting unit 301 will be explained.
As shown in FIG. 6a, second upper positioning hole 332 is aligned with second lower positioning hole 322 and screws into set screw 306. Because the connecting line between the two second lower positioning holes 322 is parallel to the arbor 5, the connecting line between the two second upper positioning holes 332 is perpendicular to the axis of the base table protrusion 334, and the blade direction of the rotary knife 302 is consistent with the axis direction of the base table protrusion 334, the blade direction of the rotary knife 302 of the rotary knife assembly unit 301 is perpendicular to the axial direction of the arbor 5, and the inclined angle of the rotary knife is 0 °.
The oblique angle of the rotary cutters 302 of the rotary cutter assembling units 301 of the left rear throwing anti-blocking unit and the right rear throwing anti-blocking unit is also adjusted to be 0 degree, so that the rotary cutters 302 of the rotary cutter assembling units 301 of the left rear throwing anti-blocking unit and the right rear throwing anti-blocking unit are parallel to each other.
As shown in FIG. 6b, the first upper positioning hole 331 is aligned with the first lower positioning hole 321 and is screwed into the set screw 306. Since the connecting line between the first lower positioning holes 321 and the connecting line between the two second lower positioning holes 322 form an angle of 26 °, the connecting line between the two first upper positioning holes 331 and the connecting line between the two second upper positioning holes 332 form an angle of 36 °, and the blade direction of the rotary cutter 302 is consistent with the axial direction of the boss 334 of the base, the oblique angle of the rotary cutter between the blade direction of the rotary cutter 302 of the rotary cutter assembly unit 301 and the direction perpendicular to the cutter shaft 5 (the advancing direction of the device) is 10 °.
the oblique angle of the rotary cutters 302 of the rotary cutter assembly single bodies 301 of the left rear throwing anti-blocking single body and the right rear throwing anti-blocking single body is correspondingly adjusted to 10 degrees, during assembly, the direction of the cutting edge of the rotary cutter 302 of the left rear throwing anti-blocking single body deflects 10 degrees leftwards and the direction of the cutting edge of the rotary cutter 302 of the right rear throwing anti-blocking single body deflects 10 degrees rightwards by taking the direction vertical to the cutter shaft 5 as a reference.
as shown in fig. 6c, the third upper alignment hole 333 is aligned with the fourth lower alignment hole 324 and screws into the set screw 306. Because the connecting line between the two fourth lower positioning holes 324 and the connecting line between the two second lower positioning holes 322 form an included angle of-56 degrees, the connecting line between the two third upper positioning holes 333 and the connecting line between the second upper positioning holes 332 form an included angle of-36 degrees, and the blade direction of the rotary cutter 302 is consistent with the axial direction of the boss 334 of the base, the inclined angle of the rotary cutter between the blade direction of the rotary cutter 302 of the rotary cutter assembly monomer 301 and the direction perpendicular to the cutter shaft 5 is 20 degrees.
The oblique angle of the rotary cutters 302 of the rotary cutter assembly single bodies 301 of the left rear throwing anti-blocking single body and the right rear throwing anti-blocking single body is correspondingly adjusted to 20 degrees, during assembly, the direction of the cutting edge of the rotary cutter 302 of the left rear throwing anti-blocking single body deflects 20 degrees leftwards and the direction of the cutting edge of the rotary cutter 302 of the right rear throwing anti-blocking single body deflects 20 degrees rightwards by taking the direction vertical to the cutter shaft 5 as a reference.
as shown in FIG. 6d, when the second upper positioning hole 332 is aligned with the third lower positioning hole 323, the set screw 306 is screwed in. An included angle of-30 degrees is formed between a connecting line between the two third lower positioning holes 323 and a connecting line between the two second lower positioning holes 322, the connecting line between the two second upper positioning holes 332 is perpendicular to the axis of the base table protrusion 334, and the blade direction of the rotary knife 302 is consistent with the axis direction of the base table protrusion 334, so that the inclined angle of the rotary knife between the blade direction of the rotary knife 302 of the rotary knife assembly unit 301 and the direction perpendicular to the knife shaft 5 is 30 degrees.
the oblique angle of the rotary cutters 302 of the rotary cutter assembly single bodies 301 of the other rotary cutter assembly single bodies 301 of the left rear throwing anti-blocking single body and the right rear throwing anti-blocking single body is correspondingly adjusted to be 30 degrees, during assembly, the direction perpendicular to the cutter shaft 5 is taken as a reference, the direction of the cutting edge of the rotary cutter 302 of the left rear throwing anti-blocking single body deflects to the left by 30 degrees, and the direction of the cutting edge of the rotary cutter 302 of the right rear throwing anti-blocking single body deflects to the right by 30 degrees.
as shown in fig. 7, preferably, the number of the rear-throwing anti-blocking units 3 is four, and the distance between the rear-throwing anti-blocking units is 300 mm; the first rear-throwing anti-blocking unit, the second rear-throwing anti-blocking unit, the third rear-throwing anti-blocking unit and the fourth rear-throwing anti-blocking unit are sequentially defined from left to right; the interval between the left rear throwing anti-blocking monomer and the right rear throwing anti-blocking monomer of each rear throwing anti-blocking unit 3 can be adjusted, and the phase angle between the left rotating knife and the right rotating knife is 45 degrees.
during operation, a left rotating knife of the first rear throwing anti-blocking unit 3 and a right rotating knife of the fourth rear throwing anti-blocking unit 3 enter the soil simultaneously; after rotating by 45 degrees, a left rotating knife of the second rear throwing anti-blocking unit 3 and a right rotating knife of the third rear throwing anti-blocking unit 3 enter the soil simultaneously; after rotating for 45 degrees, a right rotary knife of the second rear throwing anti-blocking unit 3 and a left rotary knife of the third rear throwing anti-blocking unit 3 are simultaneously driven into the soil; after rotating for 45 degrees, a right rotary knife of the first rear throwing anti-blocking unit 3 and a left rotary knife of the fourth rear throwing anti-blocking unit 3 are simultaneously driven into the soil; by analogy, after rotating for 45 degrees, the left rotary cutter and the right rotary cutter can be ensured to simultaneously enter the soil, and the axial force generated by the inclined cutter can be counteracted; the left rotary cutter and the right rotary cutter of each rear throwing anti-blocking unit 3 are respectively arranged in a spiral mode, so that sequential soil penetration can be achieved, and vibration in the operation process of the machine tool is reduced.
as shown in fig. 8, 9 and 10a, the ditching and seed-metering unit 4 comprises a ditcher 401 and a seed-metering device 402 with adjustable seed-metering opening width; the seed metering device 402 comprises seed metering opening guide plates 403 and seed metering opening side plates 404, and the two seed metering opening side plates 404 are fixedly connected with the two seed metering opening guide plates 403 through third bolts 405 and third nuts 406 to form seed metering openings together.
as shown in fig. 10b, guide plate extension plates 407 for extending the length of the lower edge of the seed discharge port guide plate 403 are preferably fixed to both sides of the seed discharge port side plate 404, so that the seed sowing device 402 can adapt to the sowing with different seed zone widths.
the working process of the invention is as follows:
During operation, the rear suspension device of the tractor is connected with the three-point suspension unit 7 in a hanging mode, the output shaft of the tractor is connected with the gearbox 8, the gearbox 8 drives the cutter shaft 5 to rotate through the transmission unit 6, so that the rear throwing anti-blocking unit 3 fixedly connected to the gearbox is driven to rotate, the rear throwing anti-blocking unit 3 cuts and throws soil and meanwhile throws straws to non-seedling strips on the lateral rear side, and the purposes of cleaning and blocking prevention of the seedling strips are achieved.
when the machine is shut down, the inclined angle of the rotary cutter can be adjusted according to the operation requirement: rotating a tool apron base 307 on the rotary tool assembly monomer 301, wherein upper positioning holes on the tool apron base 307 respectively correspond to lower positioning holes on the base plane of the half shaft sleeve 308, so that the rotary tool presents four different inclined angles, and fixing the tool apron base 307 and the half shaft sleeve 308 by using a set screw 306 after the rotary tool is adjusted; the distance between the rotary cutters can be adjusted by adjusting the distance between the left rear throwing anti-blocking monomer and the right rear throwing anti-blocking monomer, so that the cleanness of the ditching width and the straws in the seedling belts with different widths is realized, and the rear ditching and seed discharging unit 4 is favorable for realizing the sowing in different seedling belt widths.
The seed discharge port side plate 404 with guide plate extension plates 407 with different lower edge lengths can be installed according to the operation requirements, thereby realizing the seeding of various seed belt widths (60mm, 80mm, 100mm and 120 mm).
The U-shaped bolts 902 on the fixed connection plates 901 at the two ends of the adjustable beam 9 can be loosened according to the operation requirement, the distance between the ditching and seeding unit 4 and the rear throwing anti-blocking unit 3 is adjusted, and the U-shaped bolts 902 are screwed for fixing after the adjustment is finished.
finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a spiral sword is put angle, seedling area width adjustable wide seedling area to one side and is prevented stifled ditching seed metering device which characterized in that: the device comprises a frame (1), a rear throwing anti-blocking unit (3), a ditching and seed sowing unit (4), a cutter shaft (5), a transmission unit (6), a three-point suspension unit (7) and a gearbox (8);
The three-point suspension unit (7) and the gearbox (8) are fixed on the upper part of the frame (1);
The cutter shaft (5) is horizontally arranged below the rack (1) and is rotationally connected with the left side plate and the right side plate of the rack (1);
the rear throwing anti-blocking units (3) are arranged on the cutter shaft (5) at equal intervals, and the cutter shaft (5) is driven to rotate by power through a transmission unit (6) through a gearbox (8);
the rear-throwing anti-blocking unit (3) comprises a left rear-throwing anti-blocking monomer and a right rear-throwing anti-blocking monomer, the spacing distance of which can be adjusted, and the left rear-throwing anti-blocking monomer comprises two left rotary cutters which are symmetrically arranged and can adjust the inclined angle; the right rear throwing anti-blocking monomer comprises two right rotary cutters which are symmetrically arranged and can adjust the inclined angle; a phase angle is formed between the left rotary cutter and the right rotary cutter;
The rear part of each rear throwing anti-blocking unit (3) corresponds to a ditching and seed sowing unit (4) fixedly connected to a rear cross beam of the rack (1); the ditching and seed-metering unit (4) comprises a ditcher (401) and a seed metering device (402) with adjustable seed metering port width;
the left rear throwing anti-blocking monomer and the right rear throwing anti-blocking monomer are respectively composed of two rotary cutter assembling monomers (301); the rotary cutter assembling unit (301) comprises a rotary cutter (302), a cutter holder (303), a cutter holder base (307) and a half shaft sleeve (308);
The rotary cutter (302) is fixed on the cutter holder (303); the tool apron base (307) is a round base, and a base boss (334) taking the diameter of the tool apron base (307) as an axis is arranged in the middle of the upper end face of the tool apron base; the tool apron (303) is vertically and fixedly connected to a base platform bulge (334) in the middle of the upper end surface of the tool apron base platform (307), and the blade direction of the rotary knife (302) is consistent with the axial direction of the base platform bulge (334);
A plurality of pairs of upper positioning holes which are symmetrical relative to the circle center of the tool apron base (307) are respectively arranged on two sides of the base boss (334) and along the circumferential direction of the tool apron base (307);
The half shaft sleeves (308) of the pair of rotary cutter assembling units (301) are correspondingly arranged relative to the cutter shaft (5);
A base station round surface corresponding to the tool apron base station (307) is arranged in the middle of the upper surface of the half shaft sleeve (308), and a plurality of pairs of lower positioning holes which are symmetrical relative to the circle center of the base station round surface are arranged on the base station round surface along the circumferential direction of the base station round surface;
And (3) passing the set screw (306) through an upper positioning hole on the tool apron base (307) and a lower positioning hole on the half shaft sleeve (308), so that the tool apron base (307) is fixedly connected with the half shaft sleeve (308).
2. The wide seedling belt anti-blocking ditching and seed discharging device with the inclined rotary cutter and adjustable seedling belt width as claimed in claim 1, is characterized in that:
The arrangement number of the rear throwing anti-blocking units (3) on the cutter shaft (5) is even; in the axial direction of the cutter shaft (5), the left rotary cutter and the right rotary cutter of the left rear throwing anti-blocking monomer and the right rear throwing anti-blocking monomer of each rear throwing anti-blocking unit (3) are arranged in a double-helix mode.
3. The wide seedling belt anti-blocking ditching and seed discharging device with the inclined rotary cutter and adjustable seedling belt width as claimed in claim 1, is characterized in that:
During operation, at least one of the left rotating knife and the right rotating knife can simultaneously enter the soil.
4. the wide seedling belt anti-blocking ditching and seed discharging device with the inclined rotary cutter and adjustable seedling belt width as claimed in claim 1, is characterized in that:
through different alignment combinations of the upper positioning hole and the lower positioning hole, the rotary cutter assembly single body (301) comprises at least four grades of rotary cutter inclined angle adjustment.
5. The wide seedling belt anti-blocking ditching and seed discharging device with the inclined rotary cutter and adjustable seedling belt width as claimed in claim 4, is characterized in that:
The rotary cutter assembling single body (301) comprises four-gear adjusting rotary cutter inclined angles of 0 degree, 10 degrees, 20 degrees and 30 degrees.
6. The wide seedling belt anti-blocking ditching and seed discharging device with the inclined rotary cutter and adjustable seedling belt width as claimed in claim 5, is characterized in that:
A pair of first upper positioning holes (331), a pair of second upper positioning holes (332), and a pair of third upper positioning holes (333) are respectively formed on both sides of a base boss (334) of the tool holder base (307) in the circumferential direction of the tool holder base (307); a pair of first lower positioning holes (321), a pair of second lower positioning holes (322), a pair of third lower positioning holes (323) and a pair of fourth lower positioning holes (324) are formed in the circular surface of the base of the half shaft sleeve (308) along the circumferential direction of the half shaft sleeve;
the connecting line between the two second upper positioning holes (332) is vertical to the axis of the boss (334) of the base station, the connecting line between the two first upper positioning holes (331) and the connecting line between the two second upper positioning holes (332) form an included angle of 36 degrees, and the connecting line between the two third upper positioning holes (333) and the connecting line between the two second upper positioning holes (332) form an included angle of-36 degrees;
The connecting line between the two second lower positioning holes (322) is parallel to the cutter shaft (5), the connecting line between the two first lower positioning holes (321) and the connecting line between the two second lower positioning holes (322) form an included angle of 26 degrees, the connecting line between the two third lower positioning holes (323) and the connecting line between the two second lower positioning holes (322) form an included angle of-30 degrees, and the connecting line between the two fourth lower positioning holes (324) and the connecting line between the two second lower positioning holes (322) form an included angle of-56 degrees;
the second upper positioning hole (332) is aligned with the second lower positioning hole (322), and the inclined angle of the rotary cutter is 0 degree;
The first upper positioning hole (331) is aligned with the first lower positioning hole (321), and the inclined angle of the rotary cutter is 10 degrees;
the third upper positioning hole (333) is aligned with the fourth lower positioning hole (324), and the inclined angle of the rotary cutter is 20 degrees;
the second upper positioning hole (332) is aligned with the third lower positioning hole (323), and the inclined angle of the rotary cutter is 30 degrees.
7. The wide seedling belt anti-blocking ditching and seed discharging device with the inclined rotary cutter and adjustable seedling belt width as claimed in claim 1, is characterized in that:
The number of the rear-throwing anti-blocking units (3) is four, and the distance between the rear-throwing anti-blocking units is 300 mm; the phase angle between the left rotating knife and the right rotating knife is 45 degrees.
8. The wide seedling belt anti-blocking ditching and seed discharging device with the inclined rotary cutter and adjustable seedling belt width as claimed in claim 1, is characterized in that:
the seed metering device (402) comprises a seed metering opening guide plate (403) and a seed metering opening side plate (404), wherein guide plate extension plates (407) used for extending the length of the lower edge of the seed metering opening guide plate (403) are fixedly connected to two sides of the seed metering opening side plate (404).
9. The wide seedling belt anti-blocking ditching and seed discharging device with the inclined rotary cutter and adjustable seedling belt width as claimed in claim 1, is characterized in that:
A baffle (2) fixedly connected on the frame (1) is arranged above the rear throwing anti-blocking unit (3) and the ditching and seed sowing unit (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435987.XA CN108142018B (en) | 2017-12-26 | 2017-12-26 | wide seedling belt anti-blocking ditching seed discharging device with inclined rotary cutter and adjustable seedling belt width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435987.XA CN108142018B (en) | 2017-12-26 | 2017-12-26 | wide seedling belt anti-blocking ditching seed discharging device with inclined rotary cutter and adjustable seedling belt width |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108142018A CN108142018A (en) | 2018-06-12 |
| CN108142018B true CN108142018B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435987.XA Active CN108142018B (en) | 2017-12-26 | 2017-12-26 | wide seedling belt anti-blocking ditching seed discharging device with inclined rotary cutter and adjustable seedling belt width |
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| Country | Link |
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| CN (1) | CN108142018B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113439510A (en) * | 2021-05-13 | 2021-09-28 | 山西省农业科学院棉花研究所 | Morchella furrow sowing machine |
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| CN205093107U (en) * | 2015-11-23 | 2016-03-23 | 山东农业大学 | Minimal till wide seedling area wheat precision planter of executing simultaneously with fertilizer |
| CN106717321A (en) * | 2016-11-22 | 2017-05-31 | 中国农业大学 | A kind of tilting combination straight knife type kind band cleaning anti-block apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107759U (en) * | 1991-09-24 | 1992-06-24 | 辽宁省农业机械化研究所 | Strip-shaped tilling and sowing machine |
| CN2392361Y (en) * | 1999-09-29 | 2000-08-23 | 盐城市农业机械技术推广站 | Horizontal rice-wheat-straw shredding and leaving-in-field apparatus |
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| CN201163868Y (en) * | 2008-03-21 | 2008-12-17 | 中国农业大学 | Driving mechanism for ploughing stubble and resisting block |
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| CN204994233U (en) * | 2015-08-21 | 2016-01-27 | 杜成 | Double row rotary tillage ridging laminating machine |
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| CN108142018A (en) | 2018-06-12 |
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