CN2652106Y

CN2652106Y - Air suction type mulch covering precision planter

Info

Publication number: CN2652106Y
Application number: CN 200320104980
Authority: CN
Inventors: 王俊海; 周洪基; 陈德忠
Original assignee: WAFANGDIAN CITY PRECISION PLANTER MANUFACTURING Co Ltd
Current assignee: WAFANGDIAN CITY PRECISION PLANTER MANUFACTURING Co Ltd
Priority date: 2003-10-23
Filing date: 2003-10-23
Publication date: 2004-11-03
Anticipated expiration: 2013-10-23

Abstract

The utility model provides a suction film-laying precision sowing machine comprising a master beam, a slave beam, two land wheel blocks, an upper suspension bracket, two lower suspension brackets, a blower block, two markers and two to four working bodies. The two markers are arranged at the end surfaces on both sides of the master beam, the two land wheel blocks are mounted at the front part of the master beam, the two lower suspension brackets are fixed in the centre of the master beam, the upper suspension bracket is positioned between the two lower suspension brackets and fixed on the master beam, the master beam is arranged in parallel to the slave beam, and the master beam and the slave beam are provided with four to eight pedal supporting arms. The pedal supporting arms are equipped with foot pedals, and the blower block is fixed on the upper suspension bracket via bolts. The sowing machine is characterized in that two to four working bodies are mounted in series on the master beam to form a four-, six- or eight-line combined sowing machine towed by a tractor. The utility model is reasonable in structure, reliable in performance, and capable of adjusting the working row width, the working depth, the spacing, the sowing volume and the fertilizing volume with ease within a relatively broad range, and thus widely applicable, and competent to fulfill the farming technical requirement in the dry farming areas.

Description

Air suction type mulch covering precision planter

(1) technical field

The utility model relates to a kind of agricultural machinery, particularly relates to a kind of air suction type mulch covering precision planter.

(2) background technology

Along with high speed development of national economy, the continuous progress of China's agricultural science and technology, the productivity development is more and more faster, and is also more and more urgent for the demand of agricultural machinery, the agricultural machinery that particularly events in operation are many, versatility is wide, comprehensive utilization ratio is high.At present, film-mulching technique is widely used in modern agriculture, particularly in the north of China, often needs to resist cold air and frost by the shop film.Existing fertilising mulch film spreading and seeding machine is because structural design is unreasonable, there are many problems in actual use, one of its problem is a seeding apparatus, because seeding apparatus adopts outer groove-wheel or the seeding of inside groove wheel mechanical type mostly, cause seeding accuracy not high, lack of homogeneity, hole rate height have not only been wasted seed but also increased thinning work.Two of its problem is that the shop film device is because structure is provided with unreasonable, when operation, tend to cause difficulty to film length feed uniformity, make subsequently exhibition film and film limit be covered with and be subjected to a certain degree influencing, three of its problem is to adopt single hinge feeler mechanism, causes chain operation not steady.Four of its problem is that sowing shop film line number is few, can not reach machine multirow shop film and multi-row seeding.

(3) summary of the invention

In order to solve the technical problem that above-mentioned prior art exists, the utility model provides a kind of air suction type mulch covering precision planter, this machine is formed integration of operation by a plurality of job ticket machines and is answered a pager's call, and can once finish operations such as going up soil on side deep fertilizing, shop film, water furrow planting, suppression of soil and the film.

The technical scheme that adopts is:

Air suction type mulch covering precision planter comprises girder, auxiliary girder, two land wheel combinations, goes up hanger bracket, two following hanger brackets, blower fan combination, two markers, a 2-4 operation unit.Two markers are installed in the both side ends of girder, two land wheel combinations are installed in the place ahead of girder, two following hanger brackets are fixed on the middle part of girder, last hanger bracket is between two following hanger brackets, and be fixed on the girder, girder and auxiliary girder be arranged in parallel, are fixed with 4-8 pedal arm that is parallel to each other on girder and the auxiliary girder.Be fixed with pedal on the pedal arm, the blower fan combination is installed on the hanger bracket by bolt.Its structural feature is that the parallel connection of 2-4 operation unit is assemblied on the girder, forms four, six, eight row combines, and by tractor-drawn.

The operation unit comprises, goes up native device on framework combination, feeler mechanism, firming level land device, trench digging fertilizer apparatus, shop film device, press mold covering device, water furrow planting device, suppression of soil device and the film.The front portion of framework combination connects with girder by four bar feeler mechanisms, and other each device all is arranged on the support body of framework combination.

Described framework combination comprises shop film framework, seeding framework and cylinder framework, and shop film framework is made up of two curb girders and two crossbeams that are fixed on two curb girder front and back ends; The seeding framework is made up of two curb girders and the crossbeam that is fixed on two curb girders middle parts; Its front end is fixed on the rear end of shop film framework by connector.The cylinder framework is a rectangular frame, and its front end is fixed on the rear end of seeding framework by connector, is respectively arranged with a pull bar between two curb girders of shop film framework and the corresponding pedal arm.

Described four bar feeler mechanisms comprise upper connecting rod, lower link, fore-stock, after-poppet, and fore-stock is fixedlyed connected with girder, and after-poppet is fixedlyed connected with the front beam of shop film framework; The front end axle of upper connecting rod and lower link is pulled on the fore-stock, and the rear end of upper connecting rod and lower link is coupling on after-poppet.

Described firming level land device comprises that one presses the ground roller, presses the ground roller to be assemblied in the front end of shop film framework.

Described trench digging fertilizer apparatus comprises fertile box assembly, left and right plough.Fertile box assembly is by being bolted on the girder, and left and right plough is installed in respectively on the curb girder of shop film framework, and the spacing of left and right plough is adjustable, on it respectively solid welding defertilizing tube is arranged, defertilizing tube connects with fertile box assembly by fertilizer delivering pipe.

Described shop film device comprises film-spreading roller, holds film frame and several biofilm axle.The film-spreading roller two ends are installed on the film framework of shop by support respectively.Film roll is installed in and holds on the membrane support, and the two ends of several biofilm axles are located in respectively on two installing plates, and locks with split pin, and two installing plates are fixed on two curb girders of shop film framework.

Described press mold covering device comprises left and right press mold wheel and left and right covering device, and left and right press mold wheel is arranged on the rear of film-spreading roller, and is installed in the below of two curb girders of shop film framework, and left and right press mold wheel can be done the unsteady adjustment of vertical dip angle.Left and right covering device is installed in the below of two curb girders of shop film framework respectively by the adjustment support, and can adjust up and down.

Described water furrow planting device, comprise left and right seed-box, left and right seeding unit and left and right plough, left and right seeding unit is respectively by the both sides of Connection Card ferropexy at shop film framework rear cross beam, seeding unit has air-suction chamber and seed chamber, seed chamber is equiped with seed plate and seed scraping device by being bolted in the air-suction chamber in the seed chamber, seed plate is installed on the feed shaft, be equiped with the seeding sprocket wheel on the feed shaft, seed scraping device is fixed in the seed chamber by bolt and camber plate.Left and right seed chamber links by discharging tube and left and right seed-box respectively.Left and right air-suction chamber links by negative pressure pipe and blower fan respectively.Be respectively equipped with slot on two connection gibs, left and right plough is installed in two respectively and connects on the gibs, and is fixed by jackscrew, and left and right plough can be adjusted up and down by jackscrew.

Described suppression of soil device comprises, left and right press wheel, left and right covering device.Left and right press wheel is installed on the left and right suppression wheel carrier, and left and right suppression wheel carrier is installed on two adjustment supports, and the front end of two adjustment supports is separately fixed at the rear end of left and right seeding unit.The suppression wheel carrier can be adjusted up and down, and can do the unsteady adjustment of vertical dip angle with adjusting support.The upper end of left and right covering device is installed in respectively on the hanging scroll of solid welding on the left and right adjustment support, and is locked by split pin, and left and right being covered with between device and the left and right adjustment support is connected with extension spring respectively.

Adjustment support in the described suppression covering device, comprise a fixed connecting plate and square tube, solid welding has a riser on the plate face of fixed connecting plate, solid welding has a cross support arm on the riser, one end of square tube offers a rectangular notch along the pipe arm, and riser inserts in this notch, and is connected with the square tube bearing pin, square tube is supported by the cross support arm of riser front end, and square tube can upwards be rotated along bearing pin.

Go up native device on the described film, comprise cylinder, left and right native disk and the left and right adjustment rack, cylinder is arranged in the cylinder framework of framework combination rear end, the center of cylinder combination is equiped with drum shaft, the two ends of drum shaft are installed on the support of cylinder framework both sides, the left and right adjusting lever of on the native disk is installed on the adjustment rack, the left and right adjusting lever of on the native disk can be done the upper and lower, left and right adjustment on left and right adjustment rack, left and right adjustment rack is separately fixed on the left and right curb girder of seeding framework.

Go up the adjustment rack in the native device on the described film,  type frame, back  type frame and horizontal square tube before comprising, preceding  type frame and back  type frame are fixed on the curb girder of seeding framework.The middle part of horizontal square tube frame is coupling in the lower end of back  type frame by bearing pin, and the bottom solid welding of preceding  type frame has strut rail, is drilled with a circular hole on its end face, and the front end of horizontal square tube is replaced on the strut rail of preceding  type frame.The front end of horizontal square tube is fixed an axostylus axostyle, circular hole before the upper end of this axostylus axostyle passes on the  type top of support, it passes part and is with a spring, the end of its traversing through end has screwed nut, the short square tube of a band vertical tube is inserted in the rear end of horizontal square tube, and fixes with jackscrew, lacks the square tube adjustment of can stretching in horizontal square tube, the bearing pin that horizontal square tube can penetrate along  type frame lower end, back upwards floats, and can be resetted by the spring on the preceding  type frame axostylus axostyle.

The utility model is a kind of integral formula facility, can once finish operations such as going up soil on side deep fertilizing, shop film, water furrow planting, earthing, suppression and the film.The utility model adopts 2-4 operation unit and connects the formation combine, thereby can realize a machine two row shop films, four lines sowing or triplex row shop film, six row sowings or four lines shop film, eight row sowings.In addition; because this machine has adopted four bar feeler mechanisms; make driveline vibrations little; chain operates steadily; seed opener is the level of state and fluctuates; improved and left and protected the kind bed quality of having left, realized accurate seeding, accurately charge seed, accurate three uniform requirements of planting bed, improved seeding quality.The utility model adopts vertical disk air-suction seeding unit, and the amount of broadcasting and spacing in the rows are accurate, does not damage seed, and instrument can not saved a large amount of seeds, and can remove the field thinning operation from.The utility model is rational in infrastructure, dependable performance, and operation line-spacing, depth of implements, spacing in the rows, seeding quantity and fertilizing amount can both be adjusted in a big way easily, thereby wide adaptability, can satisfy the agrotechnique requirement in dry farming area.

(4) description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model.

Fig. 2 is the scheme of installation of hanger bracket and following hanger bracket on the utility model girder.

Fig. 3 is the scheme of installation of the utility model land wheel combination.

Fig. 4 is the A-A cutaway view of Fig. 1.

Fig. 5 is a structural representation of adjusting support in the device of the utility model suppression of soil.

Fig. 6 is a structural representation of going up adjustment rack in the native device on the utility model film.

Fig. 7 is the schematic diagram of the utility model transmission mechanism.

(5) embodiment

Air suction type mulch covering precision planter comprises girder 1, auxiliary girder 2, two land wheel combinations, goes up hanger bracket 3, two following hanger brackets 4, blower fan 5, two 6,4 operation units of marker.Two markers 6 by fixed mount with U type card silk be bolted to the two ends of girder 1, two following hanger brackets 4 are fixed on the middle part of girder 1 by U type card silk, last hanger bracket 3 is between two following hanger brackets 4, and be fixed on the girder 1 with U type card silk, girder 1 is square tube with auxiliary girder 2, be set parallel to each other, pass through U type card silk edge on it perpendicular to the master, the direction horizontal fixed of auxiliary girder has 8 pedal arm 7, be fixed with pedal 8 on the pedal arm 7, two land wheel combinations are assemblied in the place ahead of girder 1, the land wheel combination comprises land wheel 9, land wheel support arm 10, bogie arm card 11.The wheel shaft 28 of land wheel 9 is installed in an end of land wheel support arm 10, and the other end of land wheel support arm 10 has axle bed, and is equipped with jackshaft 12, and the axle bed of land wheel support arm 10 is installed on the bogie arm card 11.One end of jackshaft 12 is equipped with sprocket wheel 86 and sprocket wheel 87, and its other end is equipped with sprocket wheel 88 and sprocket wheel 89, and bogie arm card 11 is fixed on the girder 1 by U type card silk.Wheel shaft 28 two ends of land wheel 9 are separately installed with sprocket wheel 84 and sprocket wheel 85, and blower fan 5 is installed on the hanger bracket 3.Its structural feature is that the parallel connection of 4 operation units is assemblied on the girder 1, forms the combine of four lines shop film, eight row sowings, and this combine is by tractor-drawn.

The operation unit comprises on framework combination, feeler mechanism, firming level land device, trench digging fertilizer apparatus, shop film device, film pressing device, suppression of soil device and the film and goes up native device.The front portion of framework combination connects with girder 1 by four bar feeler mechanisms, and other each device all is arranged on the support body of framework combination.

Framework combination comprises shop film framework 13, seeding framework 14 and cylinder framework 15, and shop film framework 13 is by two curb girders and be fixed on two front beam and rear cross beams on the curb girder and form; Seeding framework 14 is made up of two curb girders and the crossbeam that is fixed on two curb girders middle parts; The front end of two curb girder is bolted to connection with two supports 16 of solid welding in film framework 13 rear ends, shop respectively, cylinder framework 15 is a rectangular frame, its front end both sides are connected on the rear end of seeding framework 14 respectively by support shaft, be connected with pull bar 17 respectively between two curb girders of shop film framework 13 and the corresponding pedal arm.

Four bar feeler mechanisms comprise upper connecting rod 18, lower link 19, front arm 20, back arm 21, and wherein, front arm 20 is fixedlyed connected with girder 1 by U type card silk, and back arm 21 is fixedlyed connected with the front beam of shop film framework 13;

Firming level land device comprises that one presses ground roller 22, presses the minor axis at roller 22 two ends, ground to be installed on two installing plates 23, and two installing plate 23 difference solid weldings are on two curb girders of shop film framework 13.

The trench digging fertilizer apparatus comprises fertile case 24, fertilizer delivering pipe 25, left and right plough 26.Fertile case 24 is fixed on the girder 1 by support, and left and right plough 26 is installed on the curb girder of shop film framework 13, and solid welding has defertilizing tube 27 on the left and right plough 26, and defertilizing tube 27 connects with fertile case 24 by fertilizer delivering pipe.Fertile case 24 is the fertile case of outer groove wheel, and a plurality of outer groove-wheels are installed on the fertilizer expelling shaft 31, and fertilizer expelling shaft 31 is supported by a plurality of axle beds that are fixed on the fertile case 24, and a row fat sprocket 42 is installed on the fertilizer expelling shaft 31.

The shop film device comprises film-spreading roller 33, holds membrane support 37 and three biofilm axles 38.Film-spreading roller 33 two ends are installed on two supports 34, and two supports 34 are coupling on the connecting plate at a lateral frame 43 two ends by bearing pin 50, and lateral frame 43 is fixed on two curb girders of shop film framework 13.Holding membrane support 37 is made up of two stands 32, a cross bar 35 and two lock Membrane covers 36.Two stands 32 are fixed on two curb girders of shop film framework 13, two lock Membrane covers 36 are nested with two ends at cross bar 35, and be arranged in the set groove in two stands upper end, when needing the dress film roll, the lock Membrane cover 36 at cross bar 35 two ends is taken off, film roll is contained on the cross bar 35, the two ends of three biofilm axles 38 are located in respectively on two installing plates 39, and with split pin locking, on two curb girders of the shop film framework 13 that two installing plates 39 are fixing.

The press mold covering device comprises left and right press mold wheel 40 and left and right covering device 41, and left and right press mold wheel 40 is installed in respectively on the left and right press mold wheel carrier, and left and right press mold wheel carrier is coupling respectively on installing plate 39.Adjusting lever on the left and right covering device 41 inserts respectively in the channel of solid welding on two curb girders spreading film framework 13, and can do to adjust up and down by jackscrew.

The water furrow planting device comprises left and right seed-box 44, left and right air-suction chamber 45, left and right seed chamber 46, left and right plough 47, and left and right seed-box 44 is fixed on the front portion of pedal arm 7.Be connected with discharging tube 29 respectively between left and right seed-box 44 and the left and right seed chamber 46, left and right air-suction chamber 45 is connected with blower fan 5 by negative pressure pipe 30 respectively.Left and right air-suction chamber 45 connects on the gib 48 by being bolted to two respectively, two front ends that connect gib 48 are fixed on the back rest of shop film framework 13, left and right seed chamber 46 is by being bolted in the left and right air-suction chamber 45, and links by discharging tube 29 and left and right seed-box 44 respectively.Be equiped with seed plate and seed scraping device in the left and right seed chamber 46, be equipped with a feed shaft 53 between the left and right seed chamber 46, the seed plate in the left and right seed chamber 46 is installed on the feed shaft 52.Be equiped with 53, two on seeding sprocket wheel on the feed shaft 52 and connect on the gib 48 respectively that solid welding has channel 55, the adjusting lever of plough 47 can insert in the groove of channel 55, and is fixed by jackscrew, and left and right plough 47 can be adjusted up and down by adjusting lever.

The suppression of soil device comprises, left and right adjustment support 49, left and right suppression wheel carrier 56, left and right press wheel 57, left and right covering device 58.A left side, right covering device 58 is positioned at a left side, the place ahead of right press wheel 57, adjust support 49, comprise a fixed connecting plate 59 and square tube 60, solid welding has a riser 61 on the plate face of fixed connecting plate 59, the front end solid welding of riser 61 has a cross support arm 62, one end of square tube 60 offers a rectangular notch 63 along the pipe arm, riser 61 inserts in this notch 63, and be connected by bearing pin 64 with square tube 60, square tube 60 is supported by the cross support arm 62 of riser 61 front ends, and square tube 60 can upwards be rotated along bearing pin 64, when press wheel 57 meets mount, can play cushioning effect, the end, rear end of square tube 60 is provided with a through hole, one end of suppression wheel carrier 56 passes the through hole of square tube 60 rear ends, and fix by jackscrew, press wheel 57 is installed in the other end of suppression wheel carrier 56, the upper end solid welding of covering device 58 has a sleeve pipe 69, earthing draws 71 solid weldings on sleeve pipe 69, on the both sides end face of riser 61 respectively solid welding one hanging scroll 70, a left side are arranged, the sleeve pipe 69 of right covering device 58 upper ends is nested with respectively on a left side, on the right hanging scroll 70, and locked by split pin, one end and the earthing of extension spring 51 draw 71 to be connected, and its other end is connected with square tube 60.

Go up native device on the film, comprise cylinder 65, a left side, a upper right native disk 66 and a left side, right adjustment rack 54, cylinder 65 is arranged in the cylinder framework 15 of framework combination rear end, there is support the both sides of cylinder framework 15 solid welding respectively, the center of cylinder 65 is equiped with drum shaft, the two ends of drum shaft are installed on the support of cylinder framework 15 both sides, a left side, fix an adjusting lever 68 on the upper right native disk 66 respectively, a left side, right adjustment rack 54 is separately fixed at the left side of seeding framework, on the right side beam, adjustment rack 54,  type frame 72 before comprising, back  type frame 73 and horizontal square tube 74, preceding  type frame 72 and back  type frame 73 are fixed on the curb girder of seeding framework 14.The middle part of horizontal square tube 74 is coupling in the lower end of back  type frame 73 by bearing pin 75, the bottom solid welding of preceding  type frame 72 has strut rail 76, be drilled with a circular hole on its end face, the front end of horizontal square tube 74 is replaced on the strut rail 76 of preceding  type frame 72, the front end of horizontal square tube 74 is fixed an axostylus axostyle 77, circular hole before the upper end of this axostylus axostyle 77 passes on  type frame 72 end faces, it passes part and is with a spring 78, the end of its traversing through end has screwed nut 79, the short square tube 81 of a band vertical tube 80 is inserted in the rear end of horizontal square tube 74, and fix by jackscrew, the adjustment of can in horizontal square tube, stretching of short square tube 81, the bearing pin that horizontal square tube 74 can penetrate along  type frame 73 lower ends, back upwards rotates, and can be resetted by the spring 78 on the preceding  type frame 72 top axostylus axostyles 77.The left and right adjusting lever of on the native disk 66 inserts in the vertical tube 80, and can adjust up and down by jackscrew, adjusts pipe and can adjust up and down in vertical tube.

The running part of operation unit is driven by land wheel, and respectively there are two operation units the both sides of blower fan, and the seeding and fertilizing transmission mechanism of two operation units of each side is driven by chain by the land wheel of a corresponding side.Wherein, two sprocket wheels 84 on land wheel 9 wheel shafts 28 and 85 connect by chain 90 and chain 91 and sprocket wheel 86 and sprocket wheels 87 on the jackshaft 12 respectively, sprocket wheel 88 on the jackshaft 12 connects by the sprocket wheel 93 of chain and a square shaft 92 1 ends, the sprocket wheel 94 of square shaft 92 other ends connects with row fat sprocket 42 on the fertilizer expelling shaft 31 mutually by chain 95, square shaft 92 is positioned at the top of girder 1, and is supported by two axle beds.Two axle beds are separately fixed on girder 1 and the fertile box bracket.Sprocket wheel 89 on the jackshaft 12 links by the sprocket wheel 67 of chain 96 with the installing of square shaft 97 1 ends, the sprocket wheel 83 that is positioned at sprocket wheel 67 sides on the square shaft 97 connects with seeding sprocket wheel 53 on the feed shaft 52 mutually by chain 82, and the other end of square shaft 97 connects with seeding sprocket wheel on adjacent another operation unit mutually by sprocket wheel and chain.Square shaft 97 is positioned at the below of girder 1, and is supported by the bearing block that is fixed on film framework 13 front beams of shop.

Claims

1, air suction type mulch covering precision planter, comprise girder (1), auxiliary girder (2), two land wheel combinations, last hanger bracket (3), two following hanger brackets (4), the blower fan combination, two markers (6), 2-4 operation unit, two markers (6) are installed in the both side ends of girder (1), two land wheel combinations are installed in the place ahead of girder (1), two following hanger brackets (4) are fixed on the middle part of girder (1), last hanger bracket (3) is positioned between two following hanger brackets (4), and be fixed on the girder (1), girder (1) be arranged in parallel with auxiliary girder (2), be fixed with 4-8 pedal arm (7) that is parallel to each other on girder (1) and the auxiliary girder (2), be fixed with pedal (8) on the pedal arm (7), the blower fan combination is installed on the hanger bracket (3) by bolt, it is characterized in that the parallel connection of 2-4 operation unit is assemblied on the girder (1), form four, six, eight row combines, and by tractor-drawn, the operation unit comprises, the framework combination, feeler mechanism, firming level land device, the trench digging fertilizer apparatus, the shop film device, the press mold covering device, the water furrow planting device, go up native device on suppression of soil device and the film, the front portion of framework combination connects with girder (1) by four bar feeler mechanisms, and other each device all is arranged on the support body of framework combination.

2, air suction type mulch covering precision planter according to claim 1, it is characterized in that described framework combination, comprise shop film framework (13), seeding framework (14) and cylinder framework (15), shop film framework (13) is made up of two curb girders and two crossbeams that are fixed on two curb girder front and back ends; Seeding framework (14) is made up of two curb girders and the crossbeam that is fixed on two curb girders middle parts, its front end is fixed on the rear end of shop film framework (13) by connector, cylinder framework (15) is a rectangular frame, its front end is fixed on the rear end of seeding framework (14) by connector, is respectively arranged with a pull bar (17) between two curb girders of shop film framework (13) and the corresponding pedal arm (7).

3, air suction type mulch covering precision planter according to claim 1, it is characterized in that described four bar feeler mechanisms, comprise upper connecting rod (18), lower link (19), front arm (20), back arm (21), front arm (20) is fixedlyed connected with girder (1), and back arm (21) is fixedlyed connected with the front beam of shop film framework (13).

4, air suction type mulch covering precision planter according to claim 1, it is characterized in that described shop film device, comprise film-spreading roller (33), hold membrane support (37) and several biofilm axle (38), film-spreading roller (33) two ends are installed on the shop film framework (13) by support (34) respectively, film roll is installed in and holds on the membrane support (37), the two ends of several biofilm axles (38) are located in respectively on two installing plates (39), and with split pin locking, two installing plates (39) are fixed on two curb girders of shop film framework (13).

5, air suction type mulch covering precision planter according to claim 1, it is characterized in that described press mold covering device, comprise left and right press mold wheel (40) and left and right covering device (41), left and right press mold wheel (40) is arranged on the rear of film-spreading roller (33), the adjusting lever of left and right soil covering implement (41) is installed in respectively on two curb girders of shop film framework (13), and can adjust up and down.

6, air suction type mulch covering precision planter according to claim 1, it is characterized in that described water furrow planting device, comprise a left side, right seed-box (44), a left side, a right plough (47) and a left side, right seeding unit, seeding unit has a left side, a right air-suction chamber (45) and a left side, right seed chamber (46), a left side, right seeding unit connects on the gib (48) by being bolted to two respectively, two front ends that connect gib (48) are fixed on the both sides of spreading film framework (13) back rest, a left side, right seed chamber (46) is by being bolted to a left side, in the right air-suction chamber (45), seed chamber is equiped with seed plate and seed scraping device in (46), seed plate is installed on the feed shaft (52), be equiped with seeding sprocket wheel (53) on the feed shaft (52), seed scraping device is fixed in the seed chamber (46) by bolt and camber plate; Left and right seed chamber (46) links by discharging tube (29) and left and right seed-box (44) respectively; Left and right air-suction chamber (45) links by negative pressure pipe (30) and blower fan (5) respectively; Be respectively equipped with slot on two connection gibs (48), the montant of left and right plough (47) inserts respectively in the slot of two connection gibs (48), and is fixed by jackscrew, and left and right plough (47) can be adjusted up and down by jackscrew.

7, air suction type mulch covering precision planter according to claim 1 is characterized in that described suppression of soil device comprises, left and right adjustment support (49), left and right suppression wheel carrier (56), left and right press wheel (57), left and right covering device (58); The front end of left and right adjustment support (49) is separately fixed in the left and right air-suction chamber (45), suppression wheel carrier (56) and covering device (58) are installed in to be adjusted on the support (49), and can do the position adjustment, left and right press wheel (57) is installed on the suppression wheel carrier (56) by connector.

8, air suction type mulch covering precision planter according to claim 7, it is characterized in that the adjustment support (49) in the described suppression covering device, comprise a fixed connecting plate (59) and square tube (60), solid welding has a riser (61) on the plate face of fixed connecting plate (59), the front end solid welding of riser (61) has a cross support arm (62), one end of square tube (60) offers a rectangular notch (63) along the pipe arm, riser (61) inserts in this notch (63), and be connected by bearing pin (64) with square tube (60), square tube (60) is supported by cross support arm (62), and square tube can upwards be rotated along bearing pin (64), on the both sides end face of riser (61) respectively solid welding one hanging scroll (70) is arranged, the rear end of square tube (60) is provided with a through hole, and an end of suppression wheel carrier (56) is plugged in this through hole.

9, air suction type mulch covering precision planter according to claim 2, it is characterized in that going up on the described film native device, comprise cylinder (65), left and right native disk (66) and the left and right adjustment rack (54), cylinder (65) is installed in the cylinder framework (15), left and right going up on the native disk (66) is fixed with an adjusting lever (68) respectively, left and right adjusting lever (68) is installed in respectively on the left and right adjustment rack (54), and can on adjustment rack (54), do the position adjustment, left and right adjustment rack (54) is separately fixed on the left and right curb girder of seeding framework (14).

10, air suction type mulch covering precision planter according to claim 9, it is characterized in that going up on the described film adjustment rack (54) in the device,  type frame (72) before comprising, back  type frame (73) and horizontal square tube (74), preceding  type frame (72) and back  type frame (73) are fixed on the curb girder of seeding framework (14), the middle part of horizontal square tube (74) is coupling in the lower end of back  type frame (73) by bearing pin (75), the bottom solid welding of preceding  type frame (72) has strut rail (76), be drilled with a circular hole on its end face, the front end of horizontal square tube (74) is replaced on the strut rail (76) of preceding  type frame (72), the front end of horizontal square tube (74) is fixed an axostylus axostyle (77), circular hole before the upper end of this axostylus axostyle (77) passes on  type frame (72) end face, it passes part and is with a spring (78), the end of its traversing through end has screwed nut (79), the short square tube (81) of a band vertical tube (80) is inserted in the rear end of horizontal square tube (74), and fix with jackscrew, short square tube (81) adjustment of can in horizontal square tube (74), stretching, the bearing pin (75) that horizontal square tube (74) can penetrate along  type frame (73) lower end, back upwards rotates, and can be resetted by the spring (78) on the axostylus axostyle (77).