CN205336774U - Layer by layer manuring seeder loose deeply - Google Patents

Abstract

The utility model relates to the field of agricultural machinery, in particular to a layered fertilization subsoiling seeder, comprising a frame (1), a blower fan (13), a subsoiling mechanism (5), a fertilization mechanism, a seeding mechanism and a ground wheel drive mechanism ( 17); the sowing mechanism includes an air-blown seed meter (8) and a parallel four-bar linkage. The layered fertilization and subsoiling seeder of the utility model not only improves the operation efficiency of the implement, but also helps to break the hard plow bottom layer, loosen the soil, improve the water storage capacity of the soil, and promote the growth of crop root systems. By adopting layered fertilization, the amount of fertilization in each layer can be adjusted, and fertilization can be carried out according to the amount of fertilizer required by different growth cycles of crops, which is beneficial to the growth of crops and the utilization rate of fertilizers. A new type of air-blowing seed metering device is adopted, which is convenient for disassembly of the seed metering device when the seeds are knocked down.

Description

A layered fertilization subsoiling seeder

technical field

The utility model relates to the field of agricultural machinery, in particular to a layered fertilization subsoiling seeder.

Background technique

For a long time, due to lack of power, most areas of my country have adopted the rotary tillage method for soil preparation. The operation methods are mostly small-scale operations, and the depth of soil preparation cannot meet the requirements. The tractor has entered the ground many times and rolled the soil, resulting in soil compaction, forming a thicker plow bottom layer. . Combined operating implements can complete multiple operations at one time, reduce the number of times the tractor enters the ground, and reduce the compaction of the soil. Therefore, the development of combined operating tools is a powerful guarantee to solve soil compaction and improve soil conditions.

Contents of the invention

The purpose of the utility model is to provide a layered fertilization subsoiling seeder, which can complete multiple operations such as subsoiling soil preparation, layered fertilization, ditching and sowing, covering soil, and suppression at one time.

The purpose of this utility model is achieved by the following technical solutions:

A layered fertilization subsoiling seeder includes a frame 1, a fan 13, a subsoiling mechanism 5, a fertilization mechanism, a seeding mechanism and a ground wheel drive mechanism 17; wherein,

The sowing mechanism includes an air-blown seed meter 8 and a parallel four-bar linkage mechanism;

The air-blown seed metering device 8 includes a seed metering device housing cover 809, a seed metering device housing 810, a seed metering shaft 804, a quick disassembly device for the seed metering disc and a position adjustment device for the clearing knife;

The seed meter housing 810 is integrally formed by a feed hopper 811 and a barrel-shaped housing 813;

The position adjustment device of the clearing knife includes a clearing knife 701, a clearing knife shaft 702, a position adjustment handle 703 of the clearing knife, a stud 705 of the clearing knife, a spring 706 for adjusting the position of the clearing knife and a shaft clamp 709;

The bottom of the cylindrical housing 813 has a circular hole 708, and is fixedly connected with the boss 707. The bottom of the cylindrical housing 813 is provided with an arc groove 704 on the circumference with the circular hole 708 as the center of the circle. The back of the housing 813 is fixedly connected with a seed meter fixing boss 814; the seed meter fixing boss 814 is provided with a threaded connection hole, and the air blowing seed meter 8 is connected to the parallel four through the seed meter fixing boss 814. The rods 10 are connected by bolts;

Seed clearing knife shaft 702 passes through circular hole 708 on the barrel-shaped housing 813, and is fixed with shaft clamp 709 at the back of cylindrical shell 813; Seed clearing knife stud 705 passes through arc groove 704, Shape housing 813 back threads are connected with clearing knife position adjustment handle 703; One end of clearing knife 701 is affixed on the clearing knife shaft 702, and the other end is affixed on the clearing knife stud 705;

A certain gap is reserved between the shaft clamp 709 and the back surface of the barrel-shaped housing 813; one end of the clearing knife position adjustment spring 706 is hooked on the clearing knife shaft 702, and the other end is hung on the boss 707;

The quick disassembly device of the seeding disc includes a seeding disc 801, a seeding disc spring 806, a limit washer 807 and a self-locking pin 808;

Wherein, the seeding disc 801 integrally formed by the disc and the ring has a central hole 822, a positioning hole 803, a plurality of grooves 802 and a shape hole; the plurality of grooves 802 are arranged along the circumferential direction of the disc of the seeding disc 801, The two positioning holes 803 are arranged symmetrically with respect to the central hole 822, and a plurality of holes are arranged through the circular outer peripheral surface of the seed metering disk 801, and the inner peripheral surface of the circular ring on one side of the seed metering disk 801 is arranged along the through hole The groove of the clearing knife accommodates the clearing knife 701, and the peripheral edge of the central hole on the other side of the seeding disc 801 has a central hole protrusion 823;

A certain distance from one shaft end of the seeding shaft 804, a seeding shaft disc is arranged along the outer circumference of the seeding shaft 804, and two positioning pins 805 are affixed to the circumferential direction of the seeding shaft disc; The central hole 822 of 801 is sleeved on the seeding shaft 804, against the disc of the seeding shaft, and the positioning pin 805 on the disc of the seeding shaft passes through the positioning hole 803 of the seeding disc 801;

The other end of the seeding shaft 804 passes through the central hole at the bottom of the barrel-shaped housing 813;

The seed disc spring 806 is arranged outside the central hole protrusion 823, between the seed disc and the spacer 807, and the end of the seed shaft 804 has a hole, and the self-locking pin 808 passes through the hole and is fixed on the row. on the seed shaft 804.

Described fertilization mechanism comprises fertilizer box 14, fertilizer pipe 15 and layered fertilizer 16, and two fertilizer boxes 14 are fixed on the frame 1, are respectively positioned at the both sides of blower fan 13;

The layered fertilizer applicator 16 includes an adjustable fertilizer tank 1601, a chute 1602, a fertilizer groove ear 1603, a bolt 1604, a bottom fertilizer sheet 1605, a fertilizer inlet pipe 1606, a fertilizer pipe fixed plate 1607 and a fertilizer pipe 1608;

The fertilization pipe 1606 is fixedly connected to the upper end of the fertilization pipe 1608, and the upper end and the lower end of the fertilization pipe 1608 pass through. One side of the fertilization pipe 1608 is provided with a plurality of fertilization holes 1609, and the other side is fixedly connected with a fertilization fixing plate 1607 for layered fertilization. Device 16 is fixedly connected on the subsoiling shovel 2 through fertilization fixing plate 1607, under the lower edge of fertilization hole 1609 except the fertilization hole 1609 at the lowermost end, fertilization pipe 1608 is fixedly connected with chute 1602, adjustable fertilization groove One end of 1601 is inserted into the fertilization hole 1609 along the lower edge and side of the fertilization hole 1609 , and the lower part of the other end is fixed to the fertilization groove ear 1603 , and the fertilizer groove ear 1603 is slidably set in the chute 1602 through the bolt 1604 . The bottom fertilizer sheet 1605 is inserted and fixed in the lowermost fertilization hole 1609 along the lower edge of the lowermost fertilization hole 1609, and closes the lower end of the fertilization pipe 1608, and the fertilizer box 14 is connected with the fertilizer inlet pipe 1606 by the fertilizer pipe 15.

Positioning bosses 816 and hooks 817 are relatively arranged on the outside of the circumference of the seed meter housing cover 809; positioning bosses 816 have positioning holes 819, and the inner surface of the positioning bosses 816 has grooves. the outer surface has a protrusion;

A connecting boss 815 and a connecting shaft 812 are arranged on the outside of the circumference of the barrel-shaped housing 813, corresponding to the positioning boss 816 and the hook 817 arranged opposite to the outside of the circumference of the seed meter housing cover 809; There is a font limit hole 818;

The seed meter housing cover 809 and the seed meter housing 810 are fastened together to form a closed chamber, and the hook 817 on the seed meter housing cover 809 is hooked on the connecting shaft 812 of the seed meter housing 810 , forming a rotational connection.

The air-blowing seed metering device 8 also includes a seed metering device housing cover opening device 9, and the seed metering device housing cover opening device 9 includes an opening device stud 901, an opening device adjustment handle 902, a stud pin 903, a screw Column gasket 904 and stud spring 905; wherein, the opening device stud 901 passes through the boss 816 of the seed meter housing cover 809 and the inline limit hole 818 of the connecting boss 815 of the seed meter housing 810 One end of the opening device stud 901 is fixedly connected to the opening device adjustment handle 902, and the other end of the opening device stud 901 has a hole, and the stud pin shaft 903 is arranged through the hole; the opening device stud 901 is covered with a stud gasket 904 and a stud spring 905 , one end of the stud spring 905 is fixed on the protrusion of the positioning boss 816 of the seed meter housing cover 809 , and the other end is in contact with the stud washer 904 .

There are four seed tray grooves 802 .

There are three fertilization holes 1609, and two fertilization fixing plates 1607.

The beneficial effects of the utility model are:

The layered fertilization subsoiling seeder of the utility model not only improves the operating efficiency of the implement, but also helps to break the hard plow bottom layer, loosen the soil, improve the water storage capacity of the soil, and promote the growth of crop root systems. By adopting layered fertilization, the amount of fertilization in each layer can be adjusted, and fertilization can be carried out according to the amount of fertilizer required by different growth cycles of crops, which is beneficial to the growth of crops and the utilization rate of fertilizers. A new type of air blowing seed metering device is adopted, which facilitates the disassembly of the seed metering device when the seed knocking occurs.

Description of drawings

Fig. 1 is the general structure schematic diagram of subsoiling seeder of layered fertilization of the present utility model;

Fig. 2 is the side view of the utility model layered fertilization subsoiling seeder;

Fig. 3 is the structural representation of the subsoiling mechanism of the utility model layered fertilization subsoiling planter;

Fig. 4 is the further detailed schematic diagram of the subsoiling mechanism of layered fertilization subsoiling planter of the present invention;

Fig. 5 is the structural representation of the layered fertilizer applicator of the utility model layered fertilization subsoiling seeder;

Fig. 6 is the structural representation of the fertilization pipe of the layered fertilization subsoiling seeder of the present utility model;

Fig. 7a is the rear view of the seeding tray of the layered fertilization subsoiling seeder of the utility model;

Fig. 7b is the front view of the seeding disc of the utility model layered fertilization subsoiling seeder;

Fig. 8a is a structural schematic diagram of the seed meter housing of the layered fertilization subsoiling seeder of the present invention;

Fig. 8b is a detailed view of the connection boss of the seed meter housing of the layered fertilization and subsoiling seeder of the utility model;

Fig. 8c is a detailed view of the feeding hopper of the seed meter housing of the layered fertilization subsoiling seeder of the present invention;

Fig. 9a is a structural schematic diagram of the housing cover of the seed metering device of the layered fertilization subsoiling seeder of the present invention;

Fig. 9b is a detailed view of the positioning boss of the seed meter housing cover of the layered fertilization and subsoiling seeder of the utility model;

Figure 10 is a schematic diagram of the installation of the internal structure of the air-blown seed meter of the subsoiling seeder for layered fertilization of the utility model;

Figure 11 is a schematic diagram of the installation of the seed meter housing and the seed meter housing cover of the layered fertilization subsoiling seeder of the utility model;

Fig. 12 is a structural schematic diagram of the opening device of the seed meter housing cover of the layered fertilization subsoiling seeder of the utility model;

Fig. 13 is a schematic cross-sectional view of the seed metering device of the layered fertilization subsoiling seeder of the utility model;

Fig. 14 is a schematic diagram of position adjustment of the clearing knife of the layered fertilization subsoiling seeder of the utility model;

Fig. 15a is a schematic diagram of the parallel four-bar linkage profiling mechanism of the layered fertilization subsoiling seeder of the present utility model;

Fig. 15b is a schematic diagram of the structure of the rear connecting rod of the layered fertilization subsoiling seeder of the present utility model;

Fig. 16 is a schematic diagram of the ground wheel driving mechanism of the layered fertilization subsoiling seeder of the utility model;

Fig. 17 is a structural schematic diagram of the fertilizer box of the layered fertilization subsoiling seeder of the utility model.

Reference signs:

1 rack 2 subsoiling shovel 3 subsoiling shovel fixed frame

4 front pressing wheel 5 deep loosening mechanism 502 limit hole

503 Front suppression wheel movable plate 504 Front suppression wheel fixed plate 6 Front suppression wheel spring

7 Seed clearing knife position adjustment device 701 Seed clearing knife 702 Seed clearing knife shaft

703 seed clearing knife position adjustment handle 704 arc groove 705 seed clearing knife stud

706 seed clearing knife position adjustment spring 707 boss 708 round hole

709 shaft card 8 air-blowing seed metering device 801 seeding disc

802 Seed disc groove 803 Positioning hole 804 Seed shaft

805 positioning pin 806 seeding plate spring 807 limit gasket

808 self-locking pin 809 seed meter housing cover 810 seed meter housing

811 feed hopper 812 connecting shaft 813 barrel-shaped housing

814 Seed Meter Fixed Boss 815 Connection Boss 816 Positioning Boss

817 hook 818 one-shaped limit hole 819 positioning hole

820 upper opening 821 lower opening 822 central hole

9 Seed Meter Housing Cover Opening Device 901 Opening Device Stud 902 Opening Device Adjusting Handle

903 Stud Pin 904 Stud Spacer 905 Stud Spring

10 parallel four-bar linkage 1001 upper linkage 1002 front linkage

1003 lower link 1004 rear link 1005 link spring

1006 sleeve 1007 arc plate 1008 seed tube fixing plate

1009 Seed Meter Fixed Plate 11 Kinds Box 12 Seed Guide Tubes

13 fan 14 fertilizer box 1401 fertilizer discharger

1402 fertilizer shaft 15 fertilizer pipe 16 layered fertilizer applicator

1601 adjustable fertilizer trough 1602 chute 1603 fertilizer trough ear

1604 bolt 1605 bottom fertilizer piece 1606 fertilizer inlet pipe

1607 Fertilizer tube fixing plate 1608 Fertilizer tube 1609 Fertilizer hole

17 ground wheel driving mechanism 1701 driven shaft 1702 bevel gear reducer

1703 ground wheel 1704 plant spacing adjustment device 1705 driving shaft

18 connecting plate 19 pressing wheel 20 ditching device

21 Passive anti-blocking device 823 Center hole protrusion

detailed description

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

As shown in Figures 1 and 2, the layered fertilization subsoiling seeder includes a frame 1, a blower fan 13, a subsoiling mechanism 5, a fertilizing mechanism, a seeding mechanism and a ground wheel driving mechanism 17.

The suspension mode of layered fertilization and subsoiling seeder is three-point suspension, and fan 13 is installed on the frame 1 through the fan frame.

As shown in Figures 3 and 4, the subsoiling mechanism 5 includes a subsoiling shovel 2, a subsoiling shovel fixed frame 3, a front pressing wheel 4, a front pressing wheel movable plate 503, a front pressing wheel fixed plate 504 and a front pressing wheel spring 6 .

Wherein, the subsoiling shovel fixed frame 3 is installed on the beam of the frame 1. The first end of the front pressing wheel fixed plate 504 is fixedly connected with the subsoiling shovel fixed frame 3, the second end of the front pressing wheel fixed plate 504 is hinged with the first end of the front pressing wheel movable plate 503 through a pin, and the front pressing wheel is movable. The second end of the plate 503 is connected with the axle of the front pressing wheel 4 .

The front pressing wheel movable plate 503 and the front pressing wheel fixing plate 504 are respectively a pair of plates with a plurality of spring connecting shafts in the middle. Limiting holes 502 are provided at the hinge ends of the front pressing wheel movable plate 503 and the front pressing wheel fixing plate 504 . When the layered fertilization subsoiling planter is not performing field work, use the fixing bolt to pass through the limit hole 502 to fix the front pressing wheel movable plate 503 and the front pressing wheel fixed plate 504 to limit the front pressing wheel 4 to float up and down.

The two ends of the front pressing wheel spring 6 are respectively articulated on the spring connecting shaft provided on the front pressing wheel movable plate 503 and the front pressing wheel fixed plate 504 . Front pressing wheel 4 suppresses the deep loose soil ahead under the tension effect of front pressing wheel spring 6, avoids seed to fall in the darker soil.

The subsoiling shovel 2 is fixed on the lower end of the subsoiling shovel fixed frame 3 by bolts.

As shown in FIGS. 1 , 2 , 5 and 6 , the fertilization mechanism includes a fertilizer box 14 , a fertilizer pipe 15 and a layered fertilizer 16 .

Wherein, two fertilizer boxes 14 are fixed on the frame 1 and are located on both sides of the blower fan 13 respectively. The layered fertilizer applicator 16 includes an adjustable fertilizer tank 1601, a chute 1602, a fertilizer groove ear 1603, a bolt 1604, a bottom fertilizer sheet 1605, a fertilizer feeding pipe 1606, a fertilizer pipe fixing plate 1607 and a fertilizer pipe 1608.

The fertilization pipe 1606 is fixedly connected to the upper end of the fertilization pipe 1608, and the upper end and the lower end of the fertilization pipe 1608 pass through. One side of the fertilization pipe 1608 has a plurality of fertilization holes 1609, and the other side is affixed with a fertilization fixing plate 1607. In this embodiment, the number of fertilization holes 1609 is preferably three, and the number of fertilization fixing plates 1607 is preferably two. The layered fertilizer applicator 16 is affixed to the subsoiling shovel 2 through the fertilization fixing plate 1607, and the fertilization operation is performed in the field through the subsoiling shovel 2. Below the lower edge of the fertilizing hole 1609 except the fertilizing hole 1609 at the bottom, the fertilizing pipe 1608 is fixedly connected with the chute 1602, and one end of the adjustable fertilizing groove 1601 is inserted into the fertilizing hole along the lower edge and side of the fertilizing hole 1609 1609 , the lower part of the other end is fixedly connected to the fat slot ear 1603 , and the fat slot ear 1603 is slidably set in the sliding groove 1602 through the bolt 1604 . The bottom fertilizer sheet 1605 is inserted and fixed in the lowermost fertilization hole 1609 along the lower edge of the lowermost fertilization hole 1609, and closes the lower end of the fertilization pipe 1608 to prevent fertilizer from flowing out from the lower end of the fertilization pipe 1608. The fertilizer box 14 is connected with the fertilizer feeding pipe 1606 through the fertilizer pipe 15 . During work, the fertilizer in the fertilizer box 14 falls into the layered fertilizer applicator 16 through the fertilizer pipe 15, and then is discharged through the fertilization hole 1609. When the amount of fertilization needs to be adjusted, the bolt 1604 is loosened, and the adjustable fertilizer groove 1601 is driven to slide in the fertilization hole 1609 with the chute 1602 as a slide rail to adjust the amount of fertilization, and then the bolt 1604 is fixed, and the adjustment of the fertilization amount is completed.

As shown in FIG. 1 and FIG. 2 , the sowing mechanism includes an air-blown seed meter 8 , a parallel four-bar linkage mechanism, a seed box 11 , a seed guide pipe 12 , a passive anti-blocking device 21 and a ditching device 20 .

As shown in FIG. 2 , FIG. 15 a and FIG. 15 b , the parallel four-bar linkage mechanism includes a parallel four-bar linkage 10 , a connecting plate 18 and a pressing wheel 19 . Wherein, the parallelogram 10 comprises an upper link 1001, a front link 1002, a lower link 1003, a rear link 1004 and a link spring 1005, the upper link 1001, the front link 1002, the lower link 1003 and The rear link 1004 is hinged together to form a parallel four-bar link structure, and the two ends of the link spring 1005 are respectively hung on the upper link 1001 and the lower link 1003 . Rear connecting rod 1004 comprises sleeve 1006, arc-shaped plate 1007, seed tube fixing plate 1008 and seed meter fixing plate 1009, wherein, the front side of rear connecting rod 1004 arranges sleeve 1006 and arc-shaped plate 1007, and the rear connecting rod Seed tube fixing plate 1008 and seed meter fixing plate 1009 are arranged on the rear side of 1004 .

The front connecting rod 1002 is fixed on the back beam of the frame 1 by U-shaped bolts, so that the whole sowing mechanism is fixed on the frame 1 . The air blowing type seed metering device 8 is installed on the seed metering device fixing plate 1009 of the rear connecting rod 1004 , and the seed box 11 is installed above the air blowing type seed metering device 8 . The upper end of connecting plate 18 is fixed on the arc plate 1007 of back connecting rod 1004, and the middle part of connecting plate 18 is hinged on the lower end of rear connecting rod 1004, and the lower end of connecting plate 18 is connected the axle of suppressing wheel 19.

The ditching device 20 is connected in the sleeve 1006 of the rear connecting rod 1004 by bolts, and the passive anti-blocking device 21 is installed on the ditching device 20 . A seed introduction tube 12 is arranged below the seed drop area of the air blowing type seed metering device 8 , and the seed introduction tube 12 is fixed on the seed introduction tube connecting plate 1008 on the rear connecting rod 1004 .

The air-blown seed meter 8 has a quick disassembly function. As shown in Figures 7 to 11, the air-blown seed meter 8 includes a seed meter housing cover 809, a seed meter housing 810, and a seed meter housing cover. Opening device 9, seeding shaft 804, quick dismounting device of seeding disc and position adjustment device of clearing knife.

A positioning boss 816 and a hook 817 are arranged opposite to the outside of the circumference of the seed meter housing cover 809 . The positioning boss 816 is provided with a positioning hole 819, and the inner surface of the positioning boss 816 is provided with a receiving groove for receiving the stud pin 903, and the outer surface of the positioning boss 816 has a protrusion.

The seed meter housing 810 is integrally formed by a feed hopper 811 and a barrel-shaped housing 813 . The feeding hopper 811 is provided with an upper opening 820 and a lower opening 821 , and the lower opening 821 communicates with the cylindrical shell 813 . A connecting boss 815 and a connecting shaft 812 are arranged outside the circumference of the barrel-shaped housing 813 , corresponding to the positioning boss 816 and the hook 817 arranged opposite to the outer circumference of the seed meter housing cover 809 . The connecting boss 815 is provided with an in-line limiting hole 818 .

The seed meter housing cover 809 and the seed meter housing 810 are fastened together to form a closed chamber, and the hook 817 on the seed meter housing cover 809 is hooked on the connecting shaft 812 of the seed meter housing 810 , to form a rotational connection to realize the opening and closing of the housing cover 809 of the seed meter through rotation.

As shown in FIG. 12 , the opening device 9 of the housing cover of the seed meter includes an opening device stud 901 , an opening device adjustment handle 902 , a stud pin shaft 903 , a stud washer 904 and a stud spring 905 . Wherein, the stud 901 of the opening device passes through the boss 816 of the seed meter housing cover 809 and the inline limiting hole 818 of the connecting boss 815 of the seed meter housing 810 . One end of the opening device stud 901 is fixedly connected to the opening device adjustment handle 902, and the other end of the opening device stud 901 has a hole, and the stud pin shaft 903 is arranged through the hole. The opening device stud 901 is covered with a stud washer 904 and a stud spring 905. One end of the stud spring 905 is fixed on the protrusion of the positioning boss 816 of the seed meter housing cover 809, and the other end is connected to the stud washer. 904 contact.

When working normally, the stud pin shaft 903 is stuck in the in-line limiting hole 818 of the seed meter housing 810 , and the seed meter housing cover 809 and the seed meter housing 810 are pressed tightly by the stud spring 905 . When the housing cover 809 of the seed metering device needs to be opened, the adjusting handle 902 of the opening device is rotated to drive the opening device stud 901 and the stud pin shaft 903 to rotate, so that the stud pin shaft 903 passes through the in-line limit hole 818, and the seed is discharged The housing cover 809 is opened. The stud pin shaft 903 passes through the positioning hole 819 to prevent the stud pin shaft 903 from leaving the seed meter housing cover 809 , and the stud pin shaft 903 is accommodated in the receiving groove on the inner surface of the positioning boss 816 .

As shown in Figures 8a, 13 and 14, the seed clearing knife position adjustment device includes a seed clearing knife 701, a seed clearing knife shaft 702, a seed clearing knife position adjustment handle 703, a seed clearing knife stud 705, and a seed clearing knife position adjustment spring 706 and shaft card 709.

The bottom of the cylindrical housing 813 has a circular hole 708, and is fixedly connected with the boss 707. The bottom of the cylindrical housing 813 is provided with an arc groove 704 on the circumference with the circular hole 708 as the center of the circle. The back of the housing 813 is fixedly connected with a seed meter fixing boss 814 . The seed meter fixing boss 814 is provided with a threaded connection hole, and the air blowing seed meter 8 and the seed meter fixing plate 1009 of the parallelogram 10 are connected by bolts through the seed meter fixing boss 814 .

Seed cleaning cutter shaft 702 passes through the circular hole 708 on the barrel-shaped housing 813, and is fixed with a shaft clamp 709 at the back of the barrel-shaped housing 813. The seed clearing knife stud 705 passes through the arc groove 704, and the seed clearing knife position adjustment handle 703 is threaded on the back of the barrel-shaped housing 813. The seed clearing knife stud 705 can slide in the circular arc groove 704, thereby controlling the position of the seed clearing knife 701 and facilitating the disassembly of the seed row 801. One end of the clearing knife 701 is affixed on the clearing knife shaft 702, and the other end is affixed on the clearing knife stud 705.

A certain gap is reserved between the shaft clamp 709 and the back surface of the cylindrical housing 813 to ensure that the seed cleaning cutter shaft 702 can rotate in the circular hole 708 . One end of the clearing knife position adjustment spring 706 is articulated on the clearing knife shaft 702, and the other end is articulated on the boss 707.

As shown in FIG. 7 a , 7 b and FIG. 10 , the quick detachment device for the seed tray includes a seed tray 801 , a seed tray spring 806 , a spacer washer 807 and a self-locking pin 808 .

Wherein, the seeding disc 801 integrally formed by the disc and the ring has a central hole 822, a positioning hole 803, a plurality of seeding disc grooves 802 and shaped holes. A plurality of seed disk grooves 802 are arranged along the circumference of the seed disk 801, two positioning holes 803 are symmetrically arranged relative to the central hole 822, and a plurality of holes are arranged through the outer circumference of the seed disk 801 noodle. The inner peripheral surface of the ring on one side of the seeding disc 801 is provided with a seed cleaning knife groove for accommodating the seed clearing knife 701 along the through hole, and the peripheral edge of the central hole on the other side of the seeding disc 801 has a central hole protrusion 823 . Wherein, the grooves 802 of the seeding tray are used to facilitate the removal of the seeding tray 801. In this embodiment, the number of grooves 802 of the seeding tray is preferably four.

A certain distance from one shaft end of the seeding shaft 804, a seeding shaft disc is arranged along the outer circumference of the seeding shaft 804, and two positioning pins 805 are affixed to the circumferential direction of the seeding shaft disc. The central hole 822 of the seeding disc 801 is sleeved on the seeding shaft 804 and leans against the disc of the seeding shaft, and the positioning pin 805 on the disc of the seeding shaft passes through the positioning hole 803 of the seeding disc 801 .

The other end of the seeding shaft 804 passes through the central hole at the bottom of the barrel-shaped housing 813, and the part where the seeding shaft 804 passes through the central hole at the bottom of the cylindrical housing 813 is arranged with a driving sprocket for the seeding shaft.

The seed disc spring 806 is arranged outside the central hole protrusion 823 , between the seed disc and the stop washer 807 . The shaft end of the seeding shaft 804 has a hole, and the self-locking pin 808 passes through the hole and is fixed on the seeding shaft 804 . Thereafter, the meter housing cover 809 is closed.

The steps for disassembling the seeding tray 801 are:

1. Open the housing cover 809 of the seed meter;

2. Slide the position adjustment handle 703 of the seed clearing knife along the arc groove 704, and remove the seed clearing knife 701 stuck in the seeding tray 801;

3. Take off the self-locking pin 808, the limit washer 807, the seeding disc spring 806, and the seeding disc 801 in order to be removed from the seeding shaft 804;

4. Loosen the position adjustment handle 703 of the seed clearing knife, and the seed clearing knife 701 returns to its original position under the action of the position adjustment spring 706 of the seed clearing knife.

As shown in Fig. 1, Fig. 16 and Fig. 17, two ground wheel driving mechanisms 17 are distributed on the rear beam of the frame 1, and the ground wheel driving mechanism 17 includes a ground wheel 1703, a bevel gear reducer 1702, an inter-plant spacing adjustment device 1704, a driving Shaft 1705 and driven shaft 1701.

The ground wheel 1703 forms a rotational connection with the lower ends of the fixed plates on both sides through the ground wheel shaft. The wheel shaft is connected to the power input end of the bevel gear reducer 1702; the driving shaft 1705 passes through the bevel gear reducer 1702, two fixed plates, the distance between plants 1704 and the front connecting rod 1002, and the distance between plants 1704 is fixed on the rear beam of the frame 1 On, the driven shaft 1701 passes through the front connecting rod 1002 and the distance between plants 1704; multiple sprockets are installed on the driven shaft 1701, and the sprocket on the driven shaft 1701 is connected with the seeding shaft of the air-blowing seed metering device 8 The seed shaft drive sprockets on the 804 are connected by a chain. Wherein, both the driving shaft 1705 and the driven shaft 1701 are hexagonal shafts.

When working, the rotation of the ground wheel 1703 drives the driving shaft 1705 to rotate through the bevel gear reducer 1702, and the driving shaft 1705 drives the driven shaft 1701 to rotate through the plant spacing adjustment device, and the driven shaft 1701 drives the air-blowing seed meter through the chain transmission The seeding shaft 804 of 8 rotates to realize seeding.

The fertilizer box 14 is provided with a fertilizer discharger 1401 and a fertilizer discharge shaft 1402, the fertilizer discharge shaft 1402 is contained in the fertilizer case 14, the fertilizer discharge device 1401 passes through the fertilizer discharge shaft 1402 and is connected with the fertilizer case 14, and the fertilizer discharge shaft 1402 is equipped with The fertilizer discharge shaft drives the sprocket, and the fertilizer discharge shaft drive sprocket on the fertilizer discharge shaft 1402 is connected with the sprocket on the driven shaft 1701 through a chain.

When working, the ground wheel transmission mechanism 17 drives the driven shaft 1701 to rotate to drive the fertilizer discharge shaft 1402 to rotate, and the fertilizer discharge device 1401 is driven by the rotation of the fertilizer discharge shaft 1402 to realize fertilizer discharge.

When the layered fertilization subsoiling seeder of the utility model works:

The layered fertilization and subsoiling seeder of the utility model operates under the drive of a tractor, and the subsoiling shovel 2 subsoils the soil while opening a fertilizer ditch, and the fertilizer in the fertilizer box 14 is driven by the ground wheel mechanism 17 to pass through the fertilizer pipe. 15 is discharged in the stratified fertilization device 16, realizes stratified fertilization by the stratified fertilization device 16, then is suppressed by the front pressing wheel 4, prevents the seed from falling into the fertilizer ditch that the subsoiling shovel 2 leaves in the follow-up process. Immediately afterwards, the ditching device 20 is used to open the seed ditch, and the ground wheel drive mechanism 17 drives the air-blown seed metering device 8 to drop the corn seeds from the seed guide pipe 12, and the corn seeds fall into the opened seed ditch to realize precise sowing. Suppression is finally carried out by the suppression wheel 19.

When due to improper operation, the seeding operation is carried out under the situation of not opening the blower fan 13, there will be the situation of knocking seeds, and the air blowing type metering device 8 will stop working when knocking seeds occurs. At this time, the air-blowing seed metering device 8 with quick disassembly function can be disassembled quickly and conveniently to remove the seeds stuck in the seed metering tray 801 and realize normal operation.

When the air-blowing seed metering device 8 is in working condition, the seeding disc 801 is installed on the seeding shaft 804, and the upper housing opening device 9 is installed in the through hole of the upper and lower housings, and the pin shaft 903 at one end of the opening device stud 901 is pressed. On the seed meter housing 810, press the upper and lower housings tightly. The position adjustment handle 703 of the clearing knife is at the bottom of the arc groove 704 . When disassembling the air-blown seed meter 8, rotate the opening device adjustment handle 902 of the upper housing opening device 9, so that the stud pin 903 passes through the groove of the in-line limit hole 818, and the seed meter housing of the seed meter is opened Body cover 809. Slide the seed clearing knife position adjustment handle 703 along the arc groove 704 to remove the seed clearing knife 701 stuck in the seeding disc 801, and then successively remove the self-locking pin 808, gasket 807, row Seed disc spring 806, finally take off the seed disc 801 installed on the seed metering shaft 804, and remove the seeds stuck in the seed disc 801.

Claims (6)

1. A layered fertilizing and deep loosening seeder, which comprises a frame (1), a fan (13), a deep loosening mechanism (5), a fertilizing mechanism, a seeding mechanism and a land wheel driving mechanism (17); wherein,

the seeding mechanism comprises an air-blowing seed sowing device (8) and a parallel four-bar linkage mechanism;

the method is characterized in that:

the air-blowing type seed metering device (8) comprises a seed metering device shell cover (809), a seed metering device shell (810), a seed metering shaft (804), a seed metering disc quick dismounting device and a seed cleaning knife position adjusting device;

the seeding unit shell (810) is formed by a feed hopper (811) and a barrel-shaped shell (813) in an integrated mode;

the seed cleaning knife position adjusting device comprises a seed cleaning knife (701), a seed cleaning knife shaft (702), a seed cleaning knife position adjusting handle (703), a seed cleaning knife stud (705), a seed cleaning knife position adjusting spring (706) and a shaft clamp (709);

a circular hole (708) is formed at the bottom of the cylindrical shell (813) and fixedly connected with a boss (707), an arc groove (704) is formed on the circumference of the bottom of the cylindrical shell (813) by taking the circular hole (708) as the circle center, and a seed metering device fixing boss (814) is fixedly connected to the back of the cylindrical shell (813); a threaded connecting hole is formed in the seed metering device fixing boss (814), and the air-blowing type seed metering device (8) is connected with the parallel four-connecting-rod (10) through the seed metering device fixing boss (814) through a bolt;

The seed cleaning cutter shaft (702) penetrates through a round hole (708) on the cylindrical shell (813), and is fixed on the back of the cylindrical shell (813) by a shaft clamp (709); a seed cleaning knife stud (705) penetrates through the arc groove (704), and a seed cleaning knife position adjusting handle (703) is connected to the back of the cylindrical shell (813) in a threaded mode; one end of the seed cleaning knife (701) is fixedly connected to the seed cleaning knife shaft (702), and the other end is fixedly connected to the seed cleaning knife stud (705);

a certain gap is reserved between the shaft clamp (709) and the back surface of the cylindrical shell (813); one end of a seed cleaning knife position adjusting spring (706) is hung on the seed cleaning knife shaft (702), and the other end is hung on the boss (707);

the seed plate quick dismounting device comprises a seed plate (801), a seed plate spring (806), a limiting gasket (807) and a self-locking pin (808);

wherein, the seed sowing plate (801) which is formed by the disc and the ring in an integrated way is provided with a central hole (822), a positioning hole (803), a plurality of grooves (802) and a shaped hole; the seed metering disc is characterized in that a plurality of grooves (802) are arranged along the circumferential direction of a disc of the seed metering disc (801), two positioning holes (803) are symmetrically arranged relative to a central hole (822), a plurality of shaped holes are arranged on the outer circumferential surface of the circular ring of the seed metering disc (801) in a penetrating manner, seed cleaning knife grooves for accommodating seed cleaning knives (701) are arranged on the inner circumferential surface of the circular ring on one side of the seed metering disc (801) along the penetrating shaped holes, and a central hole protrusion (823) is arranged on the circumferential edge of the central hole on the other side of the seed metering disc (;

A row of shaft discs are arranged along the outer circumference of the seeding shaft (804) at a certain distance from the shaft end part at one end of the seeding shaft (804), and two positioning pins (805) are fixedly connected with the circumferential direction of the seeding shaft discs; a central hole (822) of the seed metering disc (801) is sleeved on the seed metering shaft (804) and abuts against the seed metering shaft disc, and a positioning pin (805) on the seed metering shaft disc penetrates through a positioning hole (803) of the seed metering disc (801);

the other end of the seeding shaft (804) passes through the central hole at the bottom of the cylindrical shell (813);

the seed metering disc spring (806) is arranged outside the central hole bulge (823), between the seed metering shaft disc and the limiting gasket (807), a hole is formed in the shaft end part of the seed metering shaft (804), and the self-locking pin (808) penetrates through the hole and is fixed on the seed metering shaft (804).

2. The layered fertilizing and subsoiling seeding machine as claimed in claim 1, characterized in that:

the fertilizing mechanism comprises fertilizer boxes (14), a fertilizer pipe (15) and a layered fertilizer applicator (16), wherein the two fertilizer boxes (14) are fixed on the rack (1) and are respectively positioned on two sides of the fan (13);

the layered fertilizer applicator (16) comprises a fertilizer adjusting groove (1601), a sliding groove (1602), a fertilizer groove lug (1603), a bolt (1604), a bottom layer fertilizer sheet (1605), a fertilizer feeding pipe (1606), a fertilizer applying pipe fixing plate (1607) and a fertilizer applying pipe (1608);

a fertilizer inlet pipe (1606) is fixedly connected to the upper end of the fertilizer application pipe (1608), the upper end and the lower end of the fertilizer application pipe (1608) are communicated, one side of the fertilizer application pipe (1608) is provided with a plurality of fertilizer application holes (1609), the other side of the fertilizer application pipe is fixedly connected with a fertilizer application fixing plate (1607), a layered fertilizer applicator (16) is fixedly connected to the deep scarification shovel (2) through the fertilizer application fixing plate (1607), the lower edge of the fertilizer application hole (1609) except the lowest fertilizer application hole (1609) is fixedly connected with a sliding chute (1602), one end of an adjustable fertilizer groove (1601) is inserted into the fertilizer application hole (1609) along the lower edge and the side edge of the fertilizer application hole (1609), the lower part of the other end is fixedly connected with a fertilizer groove lug (1603), and the fertilizer groove lug (1603) is slidably arranged in the sliding chute (1602); the bottom layer fertilizer piece (1605) is inserted into and fixed in the fertilizing hole (1609) at the lowest end along the lower edge of the fertilizing hole (1609) at the lowest end, the lower end of the fertilizing pipe (1608) is sealed, and the fertilizer box (14) is connected with the fertilizer feeding pipe (1606) through the fertilizer pipe (15).

3. The layered fertilizing and subsoiling seeding machine as claimed in claim 1, characterized in that:

a positioning boss (816) and a hook (817) are oppositely arranged on the outer side of the circumference of the seed metering device shell cover (809); a positioning hole (819) is formed in the positioning boss (816), a groove is formed in the inner surface of the positioning boss (816), and a protruding portion is formed in the outer surface of the positioning boss (816);

a connecting boss (815) and a connecting shaft (812) are arranged on the outer side of the circumference of the cylindrical shell (813), and correspond to a positioning boss (816) and a hook (817) which are oppositely arranged on the outer side of the circumference of the seed metering device shell cover (809); a linear limiting hole (818) is arranged on the connecting boss (815);

the seed metering device shell cover (809) and the seed metering device shell (810) are buckled together to form a closed chamber, and a hook (817) on the seed metering device shell cover (809) is hung on a connecting shaft (812) of the seed metering device shell (810) to form rotary connection.

4. The layered fertilizing and subsoiling seeding machine as claimed in claim 3, characterized in that:

the air-blowing type seed metering device (8) further comprises a seed metering device shell cover opening device (9), wherein the seed metering device shell cover opening device (9) comprises an opening device stud (901), an opening device adjusting handle (902), a stud pin shaft (903), a stud gasket (904) and a stud spring (905); wherein the opening device stud (901) passes through a boss (816) of the seed metering device shell cover (809) and a linear limiting hole (818) of a connecting boss (815) of the seed metering device shell (810); one end of a stud (901) of the opening device is fixedly connected with an adjusting handle (902) of the opening device, the other end of the stud (901) of the opening device is provided with a hole, and a stud pin shaft (903) penetrates through the hole to be arranged; a stud gasket (904) and a stud spring (905) are sleeved on the opening device stud (901), one end of the stud spring (905) is fixed on the protruding part of the positioning boss (816) of the seeding unit shell cover (809), and the other end of the stud spring is in contact with the stud gasket (904).

5. The layered fertilizing and subsoiling seeding machine as claimed in claim 1, characterized in that:

the number of the seed discharging disc grooves (802) is four.

6. The layered fertilizing and subsoiling seeding machine as claimed in claim 2, characterized in that:

the number of the fertilizing holes (1609) is three, and the number of the fertilizing fixing plates (1607) is two.