CN201294734Y

CN201294734Y - Zero tillage seeder

Info

Publication number: CN201294734Y
Application number: CNU2008202160838U
Authority: CN
Inventors: 李民; 李博强; 焦刚; 季宁; 金涛
Original assignee: AGRICULTURAL MACHINERY TEST AUTHENTICATION GENERAL STATION MINISTRY OF AGRICULTURE; CHANGZHOU DONGFENG AGRICULTURAL MACHINERY GROUP Co Ltd
Current assignee: AGRICULTURAL MACHINERY TEST AUTHENTICATION GENERAL STATION MINISTRY OF AGRICULTURE; CHANGZHOU DONGFENG AGRICULTURAL MACHINERY GROUP Co Ltd
Priority date: 2008-11-14
Filing date: 2008-11-14
Publication date: 2009-08-26
Anticipated expiration: 2018-11-14

Abstract

The utility model relates to a zero tillage seeder, which comprises a frame, a cutter, a profiling ground wheel transmission mechanism, a seeding and fertilizer feeding mechanism, and a press wheel; the cutter consists of a cutter shaft and more than six disc blades mounted on the cutter shaft along the axial direction; the disc blade is composed of at least three equant sector blades; the pole radius Rx of the incision cambered surface of each sector blade increases with the cutting rotation angle; the cutter shaft is mounted on the frame and connected with the transmission mechanism; profiling one piece ploughs corresponding to the disc blades are disposed on the rear part of the frame. The profiling one piece plough comprises a support, a big disc and a small disc connected on both sides of the support, and a spring; the center line of the big disc and the small disc is collinear with the cutting edge of the disc blade; one end of the spring is hinged to the support, the other end of the spring is hinged to the frame. The utility model breaks small amount of soil, can keep straws completely covered under the land face, and can realize the real zero tillage seeding.

Description

No-tillage seeding machine

Technical field

The utility model relates to a kind of no-tillage seeding machine of using, and belongs to technical field of seeders.

Background technology

No-tillage seeding machine is in cultivating procedure, cut off by the straw of cutter earlier ground, and behind the trench digging of ground, in traveling process, continue along this ditch trench digging that continues to dig by plough again, it is expanded into seed furrow, and in trench digging, carry out the fertilizer seeding, finish trench digging, fertilizer, seeding, earthing process.No-tillage seeding machine is equipped with the breaking cutting disc usually before plough, and corrugated cutting disc is to bury by gravity, leave a narrow ditch for the plough water furrow planting, but the cutting disc of this structure amount of digging in the breaking process is big, and straw impact cutting poor effect.Adopt the disc cutter that is symmetrical arranged a plurality of circular arc cutaway on the excircle to reduce the amount of digging, but not thorough because of the straw impact cutting, disk coulter continues the cutting straw in the process of cutting soil, easily cause the phenomenon of digging, and can't accomplish no-tillage operation for this reason.

Summary of the invention

It is little that the purpose of this utility model provides a kind of amount of breaking ground, and can keep straw to cover the no-tillage seeding machine on the face of land fully.

The utility model is that the technical scheme that achieves the above object is: a kind of no-tillage seeding machine, comprise frame, cutter, profiling ground wheel drive mechanism, seed and fertilizer-expelling unit and press wheel, its spy is: described cutter constitutes by cutter shaft with along the axial desk blade of installing more than six of cutter shaft, desk blade is made of the fan-shaped blade of three above five equilibriums, the polar radius Rx of the otch arc surface of each fan-shaped blade progressively increases along with the increase of the cutting anglec of rotation, and cutter shaft is installed on the frame and is connected with transmission mechanism; There is the profiling monomer plough corresponding with each desk blade at described frame rear portion, profiling monomer plough comprises support, be connected big disk and roundel and spring that support both sides and diameter do not wait, and the cutting edge center conllinear of the intersection point center line of big disk and roundel and desk blade, spring one end is hinged on support, and the other end of spring is hinged on the frame.

The blade of the utility model cutter adopts the fan-shaped blade of five equilibrium, because the polar radius Rx of the otch arc surface of each fan-shaped blade is owing to progressively increase along with the increase of the cutting anglec of rotation, therefore cutter cuts straw and soil by the power drive desk blade in traveling process, fan-shaped blade rotation also forms sliding cutting, cutter impact cutting straw is more convenient, thorough, the amount of breaking ground is little, can cut a thin narrow guide groove in advance for plough.The utility model is because big disk and the intersection point center line of roundel and the cutting edge center conllinear of desk blade, so big disk and roundel can expand ditch work along the guide groove of holding successfully in advance.And big roundel is the rotation trench digging of advancing that rolls, and can not take up the straw on plough both sides and results in blockage and stir soil, so the amount of breaking ground is little, has kept straw to cover the face of land fully, has realized no-tillage seeding truly.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of cutter.

Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2.

Fig. 4 is the structural representation of profiling monomer plough.

Fig. 5 is the B-B sectional structure schematic diagram of Fig. 4.

Wherein: 1-seed manure case, 2-seed and fertilizer-expelling unit, 3-suspension arrangement, 4-transmission mechanism, 5-frame, 6-cutter, 6-1-cutter shaft, 6-2-desk blade, 7-profiling ground wheel drive mechanism, 8-profiling land wheel, 9-profiling monomer plough, 9-1-support, 9-2-spring, 9-3-seeding cavity, 9-4-fertilizer cavity, 9-5-two siphunculus, 9-6-roundel, 9-7-big disk, 9-8-bearing, 10-press wheel.

Embodiment

See Fig. 1, shown in 2, no-tillage seeding machine of the present utility model, comprise frame 5, cutter 6, profiling ground wheel drive mechanism 7, seed and fertilizer-expelling unit 2 and press wheel 10, seed manure case 1 is installed in the top of seed and fertilizer-expelling unit 2, the suspension arrangement 3 that is installed in frame 5 tops is connected with the hanger bracket of tractor, seed and fertilizer-expelling unit 2 is installed on the frame 5, the profiling ground wheel drive mechanism 7 that is installed on the frame 5 is connected with profiling land wheel 8, the power that acceptance passes over from profiling land wheel 8, and behind the chain-drive mechanism of profiling ground wheel drive mechanism 7 and buncher, is connected with the feed shaft of seed and fertilizer-expelling unit 2, realize sowing fertilizer.See shown in Fig. 1～3, cutter 6 of the present utility model constitutes by cutter shaft 6-1 with along the axial desk blade 6-2 that installs more than six of cutter shaft 6-1, cutter shaft 6-1 is installed in frame 5 both sides and is connected with transmission mechanism 4, and transmission mechanism 4 is connected with the power take-off of tractor.See shown in Figure 3, desk blade 6-2 of the present utility model is made of the fan-shaped blade of three above five equilibriums, the polar radius Rx of the otch arc surface of each fan-shaped blade progressively increases along with the increase of the cutting anglec of rotation, make this desk blade carry out sliding cutting to straw, the impact cutting straw is more convenient, thorough, and the amount of breaking ground is little.

See shown in Figure 1, the utility model has the profiling monomer plough 9 corresponding with each desk blade 6-2 at frame 5 rear portions, profiling monomer plough 9 comprises support 9-1, big disk 9-7 and roundel 9-6 and spring 9-2, V-shaped and big disk 9-7 and roundel 9-6 that diameter does not wait are installed on the support 9-1 by bearing 9-8, the interior angle β of big disk 9-7 and roundel 9-6 is between 6 °～15 °, and the intersection point gap delta of big disk 9-7 and roundel 9-6 is below 2mm, this intersection point is and buries a little, two disk penetrating angle α are between 30～40 °, has the performance of ditching preferably, the cutting edge center conllinear of the intersection point center line of big disk 9-7 and roundel 9-6 and desk blade 6-2, therefore, after the straw on the operating path is broken apart by chopping by desk blade again, big disk 9-7 and roundel 9-6 can expand the guide groove of original 5-10mm to the seed furrow about 25mm, because big disk 9-7 and roundel 9-6 rotation is rolled and advanced, therefore can not take up the straw on plough both sides and result in blockage.See shown in Figure 1ly, spring 9-2 one end of the present utility model is hinged on support 9-1, and the other end of spring 9-2 can be regulated and be connected on the frame 5, the degree of depth of the pressure adjustment trench digging by changing spring 9-2.

See shown in Fig. 4,5, establish perpendicular fertilizer cavity 9-4 and the seeding cavity 9-3 that puts in the support 9-1 of the present utility model, the two siphunculus 9-5 that support 9-1 installs the bottom, two siphunculus 9-5 communicates with fertilizer cavity 9-4 and seeding cavity 9-3 in the support 9-1 respectively, the seeding outlet of two siphunculus 9-5 is positioned at the side of roundel 9-6, the defertilizing outlet of two siphunculus 9-5 is positioned at the side of big disk 9-7, and the seeding outlet is higher than defertilizing outlet.

No-tillage seeding machine is in the seeding and fertilizing process, cutter 6 can cut off the straw on ground, and open the ditch of dark a 8～10cm of wide 5～10mm on ground, big disk 9-7 and roundel 9-6 can continue to cut the soil trench digging along this guide groove in traveling process, it is expanded into the seed furrow of the dark 8～10cm of wide about 25mm, fertilizer can be fallen darker position along big disk 9-7 inwall, seed is fallen more shallow position along roundel 9-6 inwall, because the difference of disk size is buried fertilizer through roundel 9-6 side clearance the soil of backflow rapidly, fertilizer and seed are mixed to be dropped on together, execute kind of a fertilising and once finish, reach seed manure and give, realize the function of no-tillage seeding.After sowing, the fertilising, carry out earthing work by press wheel 10.In the entire job process, no matter be cutter 6 dissected valleys or plough trench digging, all do not stir soil, the amount of breaking ground is little, and has kept straw to cover the face of land fully, has realized no-tillage seeding truly.

Claims

1, a kind of no-tillage seeding machine, comprise frame (5), cutter (6), profiling ground wheel drive mechanism (7), seed and fertilizer-expelling unit (2) and press wheel (10), its spy is: described cutter (6) is made of cutter shaft (6-1) and the desk blade (6-2) axially installed more than six along cutter shaft (6-1), desk blade (6-2) is made of the fan-shaped blade of three above five equilibriums, and the polar radius Rx of the otch arc surface of each fan-shaped blade progressively increases along with the increase of the cutting anglec of rotation, and cutter shaft (6-1) is installed in frame (5) both sides and is connected with transmission mechanism (4); There is the profiling monomer plough (9) corresponding with each desk blade (6-2) at described frame (5) rear portion, profiling monomer plough (9) comprises support (9-1), is connected support (9-1) both sides are V-shaped and diameter does not wait big disk (9-7) and roundel (9-6) and spring (9-2), the centerline collineation of the center line of big disk (9-7) and roundel (9-6) intersection point and desk blade (6-2) cutting edge, spring (9-2) end is hinged on support (9-1), and the other end of spring (9-2) can be regulated and be connected on the frame (5).

2, no-tillage seeding machine according to claim 1, it is characterized in that: establish perpendicular fertilizer cavity 9-4 and the seeding cavity 9-3 that puts in the described support (9-1), the two siphunculus (9-5) that install support (9-1) bottom communicates with fertilizer cavity (9-4) and seeding cavity (9-3) in the support (9-1) respectively, the seeding outlet of two siphunculus (9-5) is positioned at a side of roundel, the defertilizing outlet of two siphunculus (9-5) is positioned at a side of big disk (9-7), and the seeding outlet is higher than defertilizing outlet.

3, no-tillage seeding machine according to claim 1 is characterized in that: the interior angle β of described big disk (9-7) and roundel (9-6) is between 6 °～15 °, and the gap delta of big disk (9-7) and roundel (9-6) intersection point is below 2mm.