CN217591526U - Corn and soybean composite seeder - Google Patents

Abstract

The utility model relates to agricultural machinery, in particular to a corn and soybean compound seeder. Including frame, fertilizer injection unit, fertilization ditching device, maize seeder, soybean seeder, main gear, wherein, fertilizer injection unit fixes the intermediate position at the frame top, and fertilization ditching device is located fertilizer injection unit under, and maize seeder and soybean seeder all are located fertilizer injection unit's rear, and maize seeder is located the left and right both sides of frame, is equipped with the soybean seeder that the several set up along the width direction interval of frame between the maize seeder of both sides, and fertilizer injection unit, soybean seeder are connected with the main gear transmission respectively. The whole machine is coordinated, the requirements of planting row spacing of soybean and corn are used, the turning of the ground is facilitated, the pressing strength of the corn and the soybean is adjustable, the pressing strength for planting the corn and the soybean is met, and the combined seeding of the soybean and the corn is realized.

Description

Corn Soybean Compound Planter

technical field

The utility model relates to agricultural machinery, in particular to a corn and soybean compound seeder.

Background technique

According to the No. 1 document of the Central Committee in 2022, the requirements of "promoting corn and soybean strip compound planting in Huanghuaihai, northwest and southwest regions, and carrying out grain and soybean rotation in northeastern regions" are proposed, combined with the current market of soybean and corn seeders with only a single variety , In the process of soybean and corn intercropping compound planting, it is necessary to unite and unite the whole machine equipment to solve the incongruity of the whole machine in the process of soybean and corn joint planting, the difficulty of meeting the wide and narrow row spacing, and the difficulty of turning the machine and the headland, so there is an urgent need for pertinence and adaptation The equipment with strong performance can meet the requirements of simultaneous seeding of soybean and corn.

In addition, the crushing strength of the existing soybean after sowing is not high, and reasonable sowing equipment is needed to solve such problems.

Utility model content

The purpose of this utility model is to overcome the above-mentioned defects existing in the prior art, and proposes a corn-soybean composite planter, which is coordinated in the whole machine, uses the planting row spacing requirements of soybeans and corns, is convenient for turning the headland, and has a high crushing strength of corn and soybeans. It meets the repressive intensity of corn and soybean planting, and realizes the joint sowing of soybean and corn.

The technical scheme of the utility model is: a soybean and corn composite seeder, comprising a frame, a fertilization device, a fertilization trenching device, a corn seeding device, a soybean seeding device and a main transmission device, wherein the fertilization device is fixed on the frame In the middle position of the top, the fertilizing ditching device is located just below the fertilizing device, the corn seeding device and the soybean seeding device are located behind the fertilizing device, the corn seeding device is located on the left and right sides of the frame, and the corn seeding device on both sides is located between the two sides. There are several soybean planting devices spaced along the width direction of the frame. The fertilization device and soybean planting device are respectively connected with the main transmission device. There are two partitions in the fertilizer box, which divide the fertilizer box into three sections. Corn fertilizer is stored on both sides, soybean fertilizer is stored in the middle of the fertilizer box, the soybean fertilizer box accounts for 1/3 of the volume of the fertilizer box, and the corn fertilizer boxes on both sides account for 1/3 of the volume of the fertilizer box;

The corn seeding device includes a single connecting piece, a single supporting frame, a corn seed box, a sowing opener, a corn seed metering device, and a corn pressing wheel. The front end of the single connecting piece is fixedly connected with the frame, and the single connecting piece The rear end of the connecting rod and the single support frame are connected by a four-bar linkage mechanism. The four-bar linkage mechanism includes two connecting rods. A corn seed box is fixed on the top, the bottom of the single support frame is hinged with the sowing opener, the corn seed metering device is fixed on the seeding opener, a gearbox is arranged in the corn seed metering device, and the rear of the seeding opener is hinged have earthenware;

The rear of the single support frame is hinged with a corn crushing wheel, the surface of the corn crushing wheel is wrinkled, and the central rotating shaft of the corn crushing wheel is hinged with the single support frame through the unilateral support frame located on both sides thereof, and the single side supports The outer side of the frame is provided with a repression main drive shaft. The bottom end of the repression main drive shaft is connected with the end of the center shaft of the repression wheel through a bearing. The transmission mechanism is connected with the transmission shaft of the gearbox in the corn seed metering device, and the gearbox is connected by transmission with the seed metering spoon disc of the corn seed metering device;

A depth-limiting device is arranged between the single support frame and the pressing wheel. The depth-limiting device includes two sections of screw rods, an inner thread connecting cylinder and a connecting plate. The body support frame is hinged, the other section of the screw is hinged with the connecting plate, the two screws are connected by a threaded connection cylinder, and the threaded connection cylinder is provided with internal threads, and the internal threads are respectively engaged with the external threads of the two screws;

The soybean planting device includes a soybean crushing wheel, which is connected with the frame through a soybean crushing adjustment mechanism, and the soybean crushing adjustment mechanism includes a rocker, a movable rod and a fixed rod. The movable rod is slidably sleeved on the outside of the fixed rod, and the movable rod The fixed rods are fixedly connected by fixing bolts, the bottom end of the fixed rod is hinged with the frame, the top of the fixed rod is sleeved on the lower part of the movable rod, the soybean pressing wheel is connected with the movable rod, the movable rod is fixed with a screw rod, and the corresponding fixed rod A nut is fixed in the rod, the nut is sleeved on the outer side of the screw rod, and one end of the screw rod is provided with a shaking handle.

In the utility model, it also includes a three-point suspension device, the three-point suspension device is fixedly arranged at the front end of the frame, and the fertilization device is located at the rear of the three-point suspension device; the three-point suspension device includes an upper suspension frame and a lower suspension frame. Both the suspension frame and the lower suspension frame are connected by U-bolts.

The fertilization device includes a fertilization fixing frame, a fertilizing device, a fertilizing discharge port, a fertilizing transmission shaft, a fertilizer pipe and a fertilizer box. The fertilizer box is fixed on the top of the frame through the fertilizing fixing frame. Partition, divide the fertilizer box into three sections, corn fertilizer is stored on both sides of the fertilizer box, soybean fertilizer is stored in the middle of the fertilizer box, and several fertilizer dischargers are arranged at the bottom of the fertilizer box 307, and the fertilizer discharge port of the fertilizer discharger passes the fertilizer. The pipe is connected with the fertilization ditching device below it, and the fertilization outlet is provided with an adjustment knob;

The fertilizer dischargers are all fixed on the fertilizer discharge transmission shaft, and the fertilizer discharge transmission shaft is connected with the main transmission device. 15-20cm in length, the fertilizer dischargers for soybean fertilization are located between the soybean planting devices on both sides and the adjacent soybean planting devices, and the fertilizer dischargers are also provided with fertilizer discharge ports.

The fertilization ditching device is located directly below the fertilization device, and the fertilization ditching device includes a vertically arranged fertilization connecting rod. The lower part of the fertilizing connecting rod is provided with a ditching shovel. The shovel handle is hinged with the fertilization connecting rod through a pin shaft, the pin shaft is arranged in the adjustment hole, and the front side of the fertilizing connecting rod is in the shape of a side edge.

The bottom of the single support frame is hinged with the seeding opener through a pin shaft. The seeding opener is provided with several connecting holes along its height direction, and the pin shaft passes through the connecting holes on the seeding opener and the single support frame. connect;

The sowing opener is provided with an anti-wrap device.

The soybean planting device includes a soybean fixed connector, a soybean four-bar linkage mechanism, a soybean monomer support frame, a soybean seeding opener, a soybean seed metering device, a soybean pulling device and a soybean crushing wheel, and the front end of the soybean fixed connector is connected to the machine. The frame is fixedly connected, the rear end of the soybean fixed connector is hinged with the soybean single support frame through the soybean four-bar linkage mechanism, the soybean seed box is fixed on the top of the soybean single support frame, and the bottom of the soybean single support frame is ditched with the soybean seeding The soybean seed metering device is fixed on the soybean seeding opener. The soybean seeding opener is hinged with a soybean pulling device. Soybean monomer scaffold connection.

The main transmission device is respectively located between the corn planting device and the soybean planting device. The main transmission device includes a walking wheel, a main power transmission mechanism, a main transmission shaft and a secondary transmission shaft. The axle of the wheel is connected with the main transmission shaft through the main power transmission mechanism. The main transmission shaft and the auxiliary transmission shaft are arranged in parallel, and both are arranged on the frame. The main transmission shaft and the auxiliary transmission shaft are connected by a power gearbox. , Limiting plates are fixed on both sides of the power gearbox, and the main drive shaft and the fertilization drive shaft are connected by transmission.

The soybean pressing wheel includes parallel pressing wheel plates on both sides and several square tubes located between the two pressing wheel plates, and the square tubes are evenly spaced along the circumferential direction to form a circular pressing wheel.

The beneficial effects of the present utility model are:

(1) The machine can meet the compound planting of soybean and corn at the same time, and meet the requirements of sowing two crops in unified agricultural time;

(2) Adapt to the planting row spacing requirements of soybeans and corn, the whole machine has a compact structure, and the front and rear lengths are short, which is convenient for the tractor to turn on the headland;

(3) The height of the soybean crushing wheel and the corn crushing wheel can be adjusted, so that the crushing strength of corn and soybean can be adjusted, and according to the land conditions, it can meet the requirements of low crushing strength in the soybean planting process, and improve the crushing of corn. effect and repressive effect of soybean;

(4) At the same time, during the movement, the soybean pressing wheel and the corn pressing wheel can also float with the terrain to form a floating seeding device, which greatly improves the soybean seeding effect and the corn seeding effect;

(5) It can kill the previous crop, improve the mechanization degree of the whole process of sowing operation, easy to operate, and can be widely used.

Description of drawings

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

Fig. 2 is the front view structure schematic diagram of the present utility model;

Fig. 3 is the left side view structure schematic diagram of the present utility model;

Fig. 4 is the first structural representation of corn seeding device;

Fig. 5 is the second structural representation of corn seeding device;

Fig. 6 is the structural representation of sowing opener;

Fig. 7 is a schematic diagram of the structure of a soybean planting device.

In the picture:

1. Rack;

2. Three-point suspension device;

3. Fertilization device; 301, Fertilizer fixing frame; 302, Adjusting knob; 303, Fertilizer discharger; 304, Fertilizer discharge outlet; 305, Fertilizer transmission shaft; 306, Fertilizer pipe; 307, Fertilizer box;

4. Fertilization trenching device; 401 fertilization connecting rod;

5. Corn sowing device; 501, single connector; 502, four-bar linkage; 503, corn seed box; 504, single support frame; 505, sowing opener; 506, corn seed metering device; 507, pull Earthenware; 508, corn crushing wheel; 509, crushing main drive shaft; 510, crushing auxiliary drive shaft; 511, depth limiting device; 512 one-side support frame; 513 grass wrapping device; 514 depth limiting device; 515 connecting plate;

6. Soybean seeding device; 601, soybean crushing wheel; 602, soybean crushing adjustment mechanism; 603 shaking handle; 604 movable rod; 605 fixing rod; 606 fixing bolt;

7. Main transmission device; 701, transmission fixed connection; 702, traveling wheel; 703, main power transmission mechanism; 704, main transmission shaft; 705, auxiliary transmission shaft.

8. Power transmission.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar promotions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

As shown in FIGS. 1 to 7 , the composite soybean and corn planter according to the present utility model includes a frame 1, a three-point suspension device 2, a fertilization device 3, a fertilization ditching device 4, a corn sowing device 5, and a soybean sowing device 6 , the main transmission device 7 and the power gearbox 8, of which the three-point hitch device 2 is fixedly arranged at the front end of the frame 1 for the tractor to be hooked and pulled. The fertilization device 3 is located behind the three-point suspension device 2 and fixed in the middle position of the top of the frame 1 for spreading fertilizer. The fertilizing trenching device 4 is located at the lower part of the frame 1, and is located directly below the fertilizing device 3. Both the corn seeding device 5 and the soybean seeding device 6 are located behind the fertilization device, wherein the corn seeding device 5 is located on the left and right sides of the rack 1, and the soybean seeding device 6 is located between the corn seeding devices 5 on both sides, along the rack. Several corn seeding devices 5 are arranged at intervals in the width direction of 1 for sowing soybeans in multiple rows. In this embodiment, there are four soybean seeding devices 6, thereby realizing the sowing of four rows of soybeans. The fertilization device 3 and the soybean planting device 6 are respectively connected with the main transmission device 7 in a driving manner.

The three-point suspension device 2 includes an upper suspension frame and a lower suspension frame. The upper suspension frame and the lower suspension frame are connected by U-bolts. Through the U-shaped bolts, the width of the upper suspension frame and the lower suspension frame can be adjusted to adapt to the rear of the tractor. Different widths of the hanger.

As shown in FIGS. 2 and 3 , the fertilizing device 3 includes a fertilizing fixing frame 301, a fertilizing device 303, a fertilizing discharge port 304, a fertilizing transmission shaft 305, a fertilizer pipe 306 and a fertilizer box 307, and the fertilizer box 307 is fixed by fertilizing The rack 301 is fixed on the top of the rack 1, and in the present embodiment, the fertilizer box 307 and the rack 1 are connected by U-bolts, and the position of the fertilizer box 307 can be changed according to the difference of the planting device, so as to meet the rational layout of finishing; At the same time, the width of the U-bolt can be adjusted freely to adapt to the installation of fertilizer boxes of different widths. There are two partitions in the fertilizer box 307, and the fertilizer box 307 is divided into three sections, wherein corn fertilizer is stored on both sides of the fertilizer box, and soybean fertilizer is stored in the middle of the fertilizer box, so as to ensure that soybean fertilizer is applied in the middle of the machine, and two sides of the machine are stored. Side-applied corn fertilizer. Due to the large demand for corn fertilizer, the volume of the fertilizer box is divided into three parts, in which the soybean fertilizer box accounts for 1/3 of the volume of the fertilizer box, and the corn fertilizer boxes on both sides account for 1/3 of the volume of the fertilizer box.

The bottom of the fertilizer box 307 is provided with several fertilizer dischargers 303, and the fertilizer discharge ports of the fertilizer dischargers 303 are connected with the fertilizer ditching device 4 below through the fertilizer pipe 306, so that the fertilizer can smoothly enter the ground. An adjustment knob 302 is provided at the fertilization outlet. By rotating the adjustment knob 302, the area of the fertilization outlet can be changed, so as to realize the adjustment of the fertilization amount. The fertilizer dischargers 303 are all fixed on the fertilizer discharge transmission shaft 305 , and the fertilizer discharge transmission shaft 305 is connected with the main transmission device 7 in a driving manner. In this embodiment, four fertilisers 303 are provided, two of which are used for corn fertilization, and two fertilisers are used for soybean fertilization. The fertiliser 303 for corn fertilization is located in front of the corn seed metering device, and is different from the corn seed metering device. The corn planting devices are offset by 15-20 cm; the fertilizer dischargers 303 for soybean fertilization are respectively located between the soybean planting devices on both sides and their adjacent soybean planting devices, ensuring that fertilizer is applied between the two rows of soybeans. The fertilization transmission shaft 305 adopts a hexagonal shaft, and its contact surface is relatively large, which can generate a large power and make the fertilization device run smoothly. The fertilizer discharger 303 is also provided with a fertilizer discharge port 304 , through which excess fertilizer on the fertilizer box fertilizer discharger can be removed to prevent the fertilizer from corroding the fertilizer discharger 303 .

As shown in FIG. 3 , the fertilizing trenching device 4 is located directly below the fertilizing device 3 and is used for digging a fertilizer pit. The fertilization trenching device is fixed on the frame 1 by bolts, and can be adjusted freely according to the position of the fertilization outlet. The fertilization ditching device 4 includes a vertically arranged fertilization connecting rod 401. The lower part of the fertilizing connecting rod 401 is provided with a ditching shovel. The fertilizing connecting rod 401 is provided with a plurality of adjustment holes. The connecting rod 401 is hinged. In the actual working process, the pin shaft can be freely disassembled according to the fertilization requirements of the crop, and the ditching shovel can be positioned at different positions of the fertilization connecting rod 401 by passing the pin shaft through different adjustment holes to adjust the fertilization depth. The front side of the fertilization connecting rod 401 is in the shape of a sharp side edge, and adopts a large curved surface delay design, so the fertilizing connecting rod 401 can cut the clods and cut off weeds, stubble and other debris during the movement of the whole machine. Facilitates trenching while sliding squeezed weeds and the like to the rear together, preventing weeds from clogging up seeding.

As shown in FIG. 4 to FIG. 6 , the corn planting device includes a unitary connector 501, a unitary support frame 504, a corn seed box 503, a sowing opener 505, a corn seed metering device 506, and a corn pressing wheel 508, wherein the unitary The front end of the connecting piece 501 is fixedly connected to the frame 1, and the rear end of the single connecting piece 501 and the single supporting frame 504 are connected by a four-bar linkage mechanism 502. A connecting rod, both ends of the connecting rod are hinged with the single connecting piece 501 and the single supporting frame 504 respectively, so during the working process, the single supporting frame 504 can swing up and down around the single connecting piece 501 to ensure that the corn planting device can follow the The terrain floats to form a floatable planter. The top of the single support frame 504 is fixed with a corn seed box 503, and the bottom of the single support frame 504 is hinged with the seed opener 505 through a pin shaft. The seeding opener 505 is provided with several connecting holes along its height direction, and the pin shaft is connected to the single support frame 504 through the connecting holes on the seeding opener. The sowing opener 505 is provided with a weed entanglement device 513, and the weed entanglement device 513 can smoothly separate excess weeds from the previous crop, creating favorable conditions for convenient trenching. When the pin shaft is in the connecting hole at different positions, the adjustment of the seeding trenching depth is realized. The corn seed metering device 506 is fixed on the sowing opener 505, and the corn seed metering device 506 is provided with a gearbox, through which different plant spacings can be changed according to the planting requirements of corn. In the present embodiment, the corn seed metering device 506 adopts a 24-scoop wheel-type seeder to realize the filling process of seeds of different varieties according to the planting requirements of corn seeds, which is convenient for sowing. A soil pulling device 507 is hinged to the rear of the sowing opener 505, and the soil pulling device 507 is in the shape of a palm, and is used for backfilling the soil after sowing and opening the trench, so as to facilitate soil harvesting.

The rear of the single support frame 504 is hinged with a corn crushing wheel 508 through a bearing, and the central rotating shaft of the corn crushing wheel 508 is hinged with the single support frame 504 through the single side support frame 512 located on both sides thereof. The corn crushing wheel 508 is made of polymer resin material, and the surface is corrugated, which generates greater frictional force with the ground, thereby forming a greater rotational force. The outer side of the single-sided support frame 512 is provided with a main pressing shaft 509, the bottom end of the main pressing shaft 509 is connected with the end of the central shaft of the pressing wheel through a bearing, and the rotation of the corn pressing wheel 508 is transmitted to the main pressing shaft through the bearing. 509, thereby driving the repression main drive shaft 509 to rotate. The top end of the suppression main drive shaft 509 is connected with the suppression auxiliary drive shaft through a bearing, and the rotation of the suppression main drive shaft 509 is transmitted to the suppression auxiliary drive shaft through the bearing. The suppression auxiliary drive shaft is connected with the transmission shaft of the gearbox in the corn seed metering device 506 through the suppression drive mechanism. In this embodiment, the suppression drive mechanism adopts the power transmission mode of chain drive. The transmission shaft of the gearbox is connected with the seed metering scoop disc of the corn seed metering device 506 through a transmission mechanism, such as a chain drive or a gear drive. When the corn pressing wheel 508 moves forward with the frame 1, the corn pressing wheel 508 rotates continuously, the corn pressing wheel transmits the power to the pressing main transmission shaft 509, and the pressing main transmission shaft 509 transmits the power to the pressing auxiliary transmission shaft, and the pressing The auxiliary drive shaft transmits the power to the gearbox through the suppression drive shaft mechanism 510, and the gearbox uses the power to drive the seed metering spoon disc on the corn seed metering device to rotate, so as to complete the seed metering function. The change of different transmission ratios, thereby changing the plant spacing.

A depth limiting device 511 is provided between the single support frame 504 and the pressing wheel 508 . One section of the screw is hinged with the single support frame 504, and the other section of the screw is hinged with the connecting plate 515. The two screws are connected by a threaded connection cylinder, and the threaded connection cylinder is provided with an inner thread, and the inner thread is meshed with the screw for transmission. When the threaded connection cylinder is rotated, the distance between the two threads can be increased or decreased, so that the height of the corn pressing wheel 508 is adjusted. When the corn pressing wheel 508 is adjusted to the specified height, the depth limit The device 511 can fix the corn pressing wheel 508 at a specified height to prevent the corn pressing wheel 508 from swinging up and down during the working process.

The soybean planting device includes a soybean fixed connector, a soybean four-bar linkage mechanism, a soybean monomer support frame, a soybean seeding opener, a soybean seed metering device, a soybean pulling device and a soybean pressing wheel 601. The front end of the soybean fixed connector is connected to the frame. 1 Fixed connection, the rear end of the soybean fixed connector is hinged with the soybean monomer support frame through the soybean four-bar linkage mechanism, the soybean seed box is fixed on the top of the soybean monomer support frame, and the bottom of the soybean monomer support frame is ditched with the soybean planting The soybean seed metering device is fixed on the soybean seeding opener, the rear of the soybean seeding opener is hinged with a soybean pulling device, the soybean seed metering device is connected with the main transmission device 7, and the soybean crushing wheel 601 is adjusted by soybean crushing Mechanism 602 is connected to the unitary support frame. As shown in FIG. 7 , the soybean suppression adjustment mechanism 602 includes a crank handle 603 , a movable rod 604 and a fixed rod 605 . The movable rod 604 is slidably sleeved on the outside of the fixed rod 605 , and a fixing bolt 606 can pass between the movable rod 604 and the fixed rod 605 . Fixed connection. The bottom end of the fixed rod 605 is hinged with the single support frame, the top of the fixed rod 605 is sleeved on the lower part of the movable rod 604, and the soybean crushing wheel 601 is connected with the movable rod 604 through the connecting frame. A screw rod is fixed in the movable rod 604 , a nut is fixed in the corresponding fixed rod 605 , the nut is sleeved on the outer side of the screw rod, and one end of the screw rod is provided with a rocker 603 . When the crank handle is rotated, the screw drives the movable rod 604 to move up and down, thereby realizing the up and down movement of the soybean pressing wheel 601, realizing the height adjustment of the soybean pressing wheel 601, thereby forming different pressing strengths. In this embodiment, the soybean crushing wheel 601 includes parallel crushing wheel plates on both sides and several square tubes located between the two crushing wheel plates, and the several square tubes are evenly spaced along the circumferential direction, thereby forming a circular crushing wheel. wheel. The soybean repression wheel can reasonably separate the backlog of the previous crop after soybean sowing to form a thin repression layer, which can meet the requirements of soybean planting and ensure the mild repression effect after soybean sowing.

As shown in Figures 1 and 2, the machine includes two sets of main transmission devices 7, the main transmission devices 7 are respectively located between the corn planting device 5 and the soybean planting device 6, and the main transmission device 7 is mainly used to provide the soybean planting device 6. power. Two sets of main transmission devices adopt coaxial design to ensure the stability of seed metering transmission. The main transmission device 7 includes a running wheel 702 , a main power transmission mechanism 703 , a main transmission shaft 704 and an auxiliary transmission shaft 705 . The axle of the traveling wheel 702 is connected to the main transmission shaft 704 through the main power transmission mechanism 703 . The main transmission shaft 704 and the auxiliary transmission shaft 705 are arranged in parallel, and both are arranged on the frame 1 . The main transmission shaft 704 and the auxiliary transmission shaft 705 are connected through the power gearbox 8 . The power gearbox 8 is used to receive the power of the traveling wheel 702, and by adjusting different trigger ratios, the different rotation speeds of the seed meter in the soybean planting device 6 can be realized, and the soybean plant spacing can be adjusted. The main transmission shaft 704 receives the power transmitted by the main traveling wheel 702 , and transmits the power to the auxiliary transmission shaft 705 through different speed ratios in the power gearbox 8 . The auxiliary transmission shaft 705 is connected with the soybean seed metering device, and transmits the power to the soybean seed metering device, so as to realize the soybean seed metering operation. Limiting plates are fixed on both sides of the power gearbox 8 to prevent the power gearbox from moving back and forth on the shaft, so that the position is fixed. At the same time, the main drive shaft 704 is connected with the fertilization transmission shaft 305, the main transmission shaft 704 transmits a part of the power to the fertilization transmission shaft 305, and the fertilization transmission shaft 305 provides power to the fertilizer removal device 303 to complete the fertilizer removal operation.

The working process of this planter is as follows. First, the planter is towed and connected to the rear of the tractor, and the planter is driven to work by the tractor. During the process of driving the whole movement by the tractor, the walking wheel 702 and the corn pressing wheel 508 connected to the frame walk and rotate along with it. With the rotation of the corn crushing wheel 508, the power of the corn crushing wheel 508 is transmitted to the transmission in the corn planter 506 through the middle crushing main drive shaft 509, the crushing auxiliary transmission shaft 510 and other components to realize corn sowing. With the rotation of the traveling wheel 702, the power of the traveling wheel 702 is transmitted to the soybean planter through the main power transmission mechanism, the main transmission shaft 704, the power gearbox and the auxiliary transmission shaft 705, etc., so as to realize soybean sowing. At the same time, part of the power generated by the rotation of the main transmission shaft 704 is transmitted to the fertilization transmission shaft 305, and the fertilization transmission shaft 305 drives the fertilization device 303 to act to realize the fertilization action.

The corn-soybean composite planter provided by the present utility model has been introduced in detail above. The principles and implementations of the present invention are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present utility model, some improvements and modifications can also be made to the present utility model, and these improvements and modifications also fall into the protection of the claims of the present utility model. within the range. The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a compound seeder of maize soybean, includes frame (1), fertilizer injection unit (3), fertilization ditching device (4), maize seeder (5), soybean seeder (6), final drive (7), its characterized in that: the fertilizing device (3) is fixed in the middle of the top of the rack (1), the fertilizing and ditching device (4) is located under the fertilizing device (3), the corn seeding devices (5) and the soybean seeding devices (6) are located behind the fertilizing device, the corn seeding devices (5) are located on the left side and the right side of the rack (1), a plurality of soybean seeding devices (6) which are arranged at intervals in the width direction of the rack (1) are arranged between the corn seeding devices (5) on the two sides, the fertilizing device (3) and the soybean seeding devices (6) are respectively in transmission connection with the main transmission device (7), two partitions are arranged in the fertilizer box (307), the fertilizer box (307) is divided into three sections, the corn fertilizers on the two sides of the fertilizer box are stored, the soybean fertilizer is stored in the middle of the fertilizer box, the soybean fertilizer box occupies 1/3 of the volume of the fertilizer box, and the corn fertilizer boxes on the two sides respectively occupy 1/3 of the volume of the fertilizer box;

the corn seeding device (5) comprises a single connecting piece (501), a single supporting frame (504), a corn seed box (503), a seeding furrow opener (505), a corn seed sowing device (506) and a corn press wheel (508), wherein the front end of the single connecting piece (501) is fixedly connected with the rack (1), the rear end of the single connecting piece (501) is connected with the single supporting frame (504) through a four-bar linkage mechanism (502), the four-bar linkage mechanism (502) comprises two connecting bars, two ends of each connecting bar are respectively hinged with the single connecting piece (501) and the single supporting frame (504), the top of the single supporting frame (504) is fixedly provided with the corn seed box (503), the bottom of the single supporting frame (504) is hinged with the seeding furrow opener (505), the corn seed sowing device (506) is fixedly arranged on the seeding furrow opener (505), a gearbox is arranged in the corn seed sowing device (506), and the rear part of the seeding furrow opener (505) is hinged with a soil puller (507);

the corn seed metering device is characterized in that a corn press wheel (508) is hinged to the rear portion of the single support frame (504), the surface of the corn press wheel (508) is in a corrugated shape, a central rotating shaft of the corn press wheel (508) is hinged to the single support frame (504) through single-side support frames (512) located on two sides of the central rotating shaft, a press main transmission shaft (509) is arranged on the outer side of each single-side support frame (512), the bottom end of the press main transmission shaft (509) is connected with the end portion of a central shaft of the press wheel through a bearing, the top end of the press main transmission shaft (509) is connected with a press auxiliary transmission shaft through a bearing, the press auxiliary transmission shaft is connected with a transmission shaft of a gearbox in the corn seed metering device (506) through a press transmission mechanism, and the gearbox is in transmission connection with a seed metering spoon disc of the corn seed metering device (506);

a depth limiting device (511) is arranged between the single support frame (504) and the press wheel (508), the depth limiting device (511) comprises two sections of screw rods, an internal thread connecting cylinder and a connecting plate (515), the connecting plate (515) is fixed between the two single support frames (512), one section of the screw rods is hinged with the single support frame (504), the other section of the screw rods is hinged with the connecting plate (515), the two screw rods are connected through the threaded connecting cylinder, internal threads are arranged in the threaded connecting cylinder, and the internal threads of the threaded connecting cylinder are respectively meshed with external threads of the two screw rods;

soybean seeder includes soybean press wheel (601), soybean press wheel (601) is connected with the frame through press adjustment mechanism (602), press adjustment mechanism (602) including crank (603), movable rod (604) and dead lever (605), movable rod (604) slip cap is in the outside of dead lever (605), through fixing bolt (606) fixed connection between movable rod (604) and dead lever (605), the bottom and the frame of dead lever (605) are articulated, the top cover of dead lever (605) is in the lower part of movable rod (604), soybean press wheel (601) is connected with movable rod (604), movable rod (604) internal fixation is equipped with the screw rod, the dead lever (605) internal fixation that corresponds has the nut, the nut cover is in the outside of screw rod, the one end of screw rod is equipped with crank (603).

2. The corn-soybean compound seeder of claim 1, wherein: the three-point suspension device (2) is fixedly arranged at the front end of the rack (1), and the fertilizing device (3) is positioned behind the three-point suspension device (2); the three-point suspension device (2) comprises an upper suspension frame and a lower suspension frame which are connected through U-shaped bolts.

3. The corn-soybean compound seeder of claim 1, wherein: the fertilizer applying device (3) comprises a fertilizer applying fixing frame (301), fertilizer applicators (303), a fertilizer applying discharge opening (304), a fertilizer applying transmission shaft (305), a fertilizer pipe (306) and a fertilizer box (307), wherein the fertilizer box (307) is fixed at the top of the rack (1) through the fertilizer applying fixing frame (301), the bottom of the fertilizer box (307) is provided with a plurality of fertilizer applicators (303), the fertilizer applying opening of the fertilizer applicator (303) is connected with a fertilizer ditching device (4) below the fertilizer applicator through the fertilizer pipe (306), and an adjusting knob (302) is arranged at the fertilizer applying opening;

the fertilizer applicators (303) are all fixed on a fertilizer delivery shaft (305), the fertilizer delivery shaft (305) is in transmission connection with a main transmission device (7), the fertilizer applicators (303) for fertilizing corns are positioned in front of the corn seed metering devices and are deviated from the corn seed metering devices by 15-20cm, the fertilizer applicators (303) for fertilizing soybeans are respectively positioned between the soybean seed metering devices at two sides and the adjacent soybean seed metering devices, and a fertilizer discharge opening (304) is further arranged on each fertilizer applicator (303).

4. The corn-soybean compound seeder of claim 1, wherein: fertilization ditching device (4) are located fertilization device (3) under, and fertilization ditching device (4) are equipped with the ditching shovel including fertilization connecting rod (401) of vertical setting fertilization connecting rod (401) the lower part of fertilization connecting rod (401), are equipped with the several regulation hole on fertilization connecting rod (401), and the share shaft of ditching shovel is articulated with fertilization connecting rod (401) through the round pin axle, and the round pin axle sets up in the regulation hole, and the front side of fertilization connecting rod (401) is the side sword form.

5. The corn-soybean compound seeder of claim 1, wherein: the bottom of the single support frame (504) is hinged with a sowing furrow opener (505) through a pin shaft, a plurality of connecting holes are formed in the sowing furrow opener (505) along the height direction of the sowing furrow opener, and the pin shaft penetrates through the connecting holes in the sowing furrow opener to be connected with the single support frame (504);

an anti-grass-winding device (513) is arranged on the sowing furrow opener (505).

6. The corn-soybean compound seeder of claim 1, wherein: soybean seeder includes soybean fixed connector, soybean four-bar linkage, soybean monomer support frame, soybean seeding furrow opener, the soybean seed metering ware, soybean soil pulling device and soybean press wheel (601), soybean fixed connector's front end and frame (1) fixed connection, soybean fixed connector's rear end is articulated with soybean monomer support frame through soybean four-bar linkage, the top of soybean monomer support frame is fixed with soybean seed case, the bottom of soybean monomer support frame is articulated with soybean seeding furrow opener, the soybean seed metering ware is fixed on soybean seeding furrow opener, the rear portion of soybean seeding furrow opener articulates there is soybean soil pulling device, the soybean seed metering ware is connected with main transmission (7) transmission, soybean press wheel (601) are connected with soybean monomer support frame through soybean press adjustment mechanism (602).

7. The corn and soybean compound seeder according to claim 1, wherein: the main transmission device (7) is respectively arranged between the corn sowing device (5) and the soybean sowing device (6), the main transmission device (7) comprises a walking wheel (702), a main power transmission mechanism (703), a main transmission shaft (704) and an auxiliary transmission shaft (705), the walking wheel (702) is connected with the rack (1) through a transmission fixed connecting piece (701), a wheel shaft of the walking wheel (702) is in transmission connection with the main transmission shaft (704) through the main power transmission mechanism (703), the main transmission shaft (704) and the auxiliary transmission shaft (705) are arranged in parallel and are arranged on the rack (1), the main transmission shaft (704) and the auxiliary transmission shaft (705) are connected through a power transmission box (8), limiting plates are fixed on two sides of the power transmission box (8), and the main transmission shaft (704) is in transmission connection with the fertilizer discharging transmission shaft (305).

8. The corn and soybean compound seeder according to claim 1, wherein: soybean press wheel (601) is including the parallel press wheel board that is located both sides and the several side's pipe that is located between two press wheel boards, and the even interval setting of several side's pipe along the circumferencial direction forms circular shape press wheel.

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