A corn reasonable dense planting no-tillage fertilization staggered sowing device

Abstract

The present invention belongs to the technical field of maize reasonable dense planting and staggered sowing, and discloses a maize reasonable dense planting and no-tillage fertilization staggered sowing device, wherein a finger-clamp type seed meter is fixedly arranged at the bottom position of parallel seed boxes, a finger-clamp type seed meter is arranged at the bottom of each parallel seed box, and the finger-clamp type seed meter is arranged symmetrically on the left and right; a seed box transmission device is fixedly arranged at the right position of a fertilizer box transmission device; a soil suppression and covering device is fixedly arranged at the right position of a frame, and is fixedly connected to the frame through a connecting plate; a seed lowering pipe is fixedly arranged at the lower position of the finger-clamp type seed meter, and the seed lowering pipe is in a Y-shaped structure, and the upper left side of the seed lowering pipe is fixedly connected to the seed lowering port of the left finger-clamp type seed meter, and the right side of the seed lowering pipe is fixedly connected to the seed lowering port of the right finger-clamp type seed meter; the present invention realizes the staggered sowing of maize seeds, reasonably improves the planting density of maize, and improves the per mu yield of maize.

Description

Technical Field

[0001] The invention belongs to the technical field of corn reasonable dense planting and staggered sowing, and in particular relates to a corn reasonable dense planting and no-tillage fertilization staggered sowing device. Background Art

[0002] Corn yield is composed of the number of ears per mu, the number of grains per ear, and the grain weight. Experiments show that with the increase of planting density, the number of ears per mu increases (but the growth ratio is getting smaller and smaller), while the number of grains per ear and the grain weight decrease. The reason for the increase in yield due to reasonable dense planting is that the increase in yield due to the increase in ears is greater than the decrease in yield due to the decrease in the number of grains and grain weight. If the increase in yield due to the increase in ears is less than the decrease in yield due to the decrease in the number of grains and grain weight, it means that the planting is too dense. Reasonable dense planting means planting an appropriate number of plants per unit area of ​​land according to local natural conditions, production conditions and corn variety characteristics, so that the three factors of corn and environment are unified, the group and individual are unified, and the corn yield is coordinated and balanced at a higher level, thereby establishing a high-yield corn group structure to achieve the goals of high yield, high quality and high efficiency. Therefore, in the agronomy of corn planting, reasonable dense planting is an important measure to increase corn yield.

[0003] In existing production practices, the Huanghuaihai planting area usually does no-tillage on wheat stubble after wheat harvest, and plants corn with an equal row spacing of 600mm, with 4,000 to 5,000 corn plants per mu. The reasonable dense planting technology requires more than 5,000 corn plants per mu, and between 5,500 and 7,000 plants according to variety characteristics and ecological conditions. The corn seeder currently used cannot meet the technical requirements of reasonable dense planting, which is to accurately adjust the planting density according to the variety and ecological conditions and the reasonable distribution of densely planted plants in space. If the planting density of corn is increased only by increasing the planting density of a single row or reducing the row spacing, the competition for resources such as light, temperature, water, and fertilizer between plants will be intensified, resulting in poor ventilation and light transmission of corn, affecting corn photosynthesis, slowing corn growth, weak plants, aggravating pests and diseases, and increasing the risk of lodging, reducing corn yield and quality. At present, only the air suction seeder can solve the problem of dislocated sowing of corn seeds to improve the reasonable planting density of corn. The ordinary mechanical seeder alone cannot achieve dislocated sowing of corn seeds. In view of the shortcomings of the prior art, the inventor has developed a corn reasonable dense planting, no-till fertilization and staggered sowing device, which can increase corn yield and improve corn quality while reasonably increasing corn planting density according to corn varieties and ecological conditions. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a corn reasonable dense planting no-till fertilization staggered sowing device, which has a simple design structure, scientific and reasonable, and easy operation; on the basis of the original seeder as a single seed box, the present invention arranges the seed box into two parallel seed boxes, and at the same time, a left-right symmetrical finger-clamp type seeder is arranged at the lower part of the parallel seed box, and the staggered symmetrical arrangement of the sowing fingers of the finger-clamp type seeder is utilized to achieve the staggered falling time of the corn seeds, thereby realizing the staggered sowing of the corn seeds, improving the planting density of the corn sowing, and meeting the agronomic requirements of reasonable dense planting.

[0005] The technical scheme adopted by the present invention is: a corn reasonable dense planting no-tillage fertilization staggered sowing device, comprising a frame, a suspension frame, a reducer, a disc sawtooth furrow opener, a four-link profiling mechanism, and a fertilizer box; a suspension frame for connecting a tractor is fixedly arranged at the upper left position of the frame, and the suspension frame is fixedly connected to the front and rear ends of the frame; the reducer is fixedly arranged at the right position of the suspension frame, and the reducer is fixedly arranged on the frame; the disc sawtooth furrow openers are fixedly arranged at equal intervals on a rotating shaft connected to the reducer, and the reducer is used to drive the disc sawtooth furrow openers to rotate for rotary cutting and crushing of weeds; the four-link profiling mechanism is fixedly arranged at the upper right position of the disc sawtooth furrow opener, and is used to fix the upper right part of the disc sawtooth furrow opener to the frame; the fertilizer box is fixedly arranged at the right position of the reducer, and the parallel seed box is fixedly arranged at the right position of the fertilizer box, and the fertilizer box and the parallel seed box are fixedly connected to the upper part of the frame; the furrowing assembly is fixedly arranged on the disc sawtooth furrow opener. The right side position of the furrow opener is used for furrowing and sowing on the farmland; the fertilizer box transmission device is fixedly arranged at the inclined position on the front side of the fertilizer box, and is used to drive the fertilizer applicator of the fertilizer box transmission device to realize fertilization operation through the rotation of the suppression and covering device; the finger-clamp type seed metering device is fixedly arranged at the bottom position of the parallel seed box, and a finger-clamp type seed metering device is arranged at the bottom of each parallel seed box, and the finger-clamp type seed metering device is arranged symmetrically on the left and right; the seed box transmission device is fixedly arranged at the right side position of the fertilizer box transmission device, and is used to drive the finger-clamp type seed metering device on the seed box transmission device for precision sowing; the suppression and covering device is fixedly arranged at the right side position of the frame, and is fixedly connected to the frame through a connecting plate, and is used for suppressing and covering the soil after corn sowing; the seed lowering tube is fixedly arranged at the lower position of the finger-clamp type seed metering device, and the seed lowering tube is a Y-shaped structure, the upper left side of the seed lowering tube is fixedly connected to the seed lowering port of the left finger-clamp type seed metering device, and the right side of the seed lowering tube is fixedly connected to the seed lowering port of the right finger-clamp type seed metering device, so as to realize the sowing of the left and right finger-clamp type seed metering devices.

[0006] The fertilizer box transmission device includes a transmission chain, a fertilizer discharger driving wheel is fixedly arranged on the front side of the fertilizer box near the left side, an intermediate sprocket is fixedly arranged on the lower right side of the driving wheel, and the intermediate sprocket is fixedly connected to the front side of the frame; the upper part of the transmission chain is sleeved with the fertilizer discharger driving wheel, and the lower part of the transmission chain is sleeved with the intermediate sprocket for transmission.

[0007] The finger-clamp type seed metering device comprises a finger-clamp type seed metering device body, which is a disc structure, and the finger clamps are evenly arranged around the circumference of the finger-clamp type seed metering device body for precision sowing of corn seeds.

[0008] The seed box transmission device includes a main transmission chain, a transmission shaft fixedly arranged horizontally at the lower position of the finger-clamp type seed metering device, and the transmission shaft is fixedly connected to the left and right ends of the frame through an axle seat; a sprocket is fixedly arranged at the right position of the middle sprocket of the fertilizer box transmission device, and is fixedly arranged on the front side of the frame; the main transmission chain is sleeved on the sprocket and the middle sprocket; the speed regulator is fixedly arranged at the right position of the sprocket and sleeved on the left end position of the transmission shaft for adjusting the rotation speed of the transmission shaft; the driven sprockets are fixedly arranged on the transmission shaft at equal intervals and are arranged corresponding to the parallel seed boxes, and the driven sprocket is fixedly arranged at the lower position corresponding to the right side of the finger-clamp type seed metering device; the secondary transmission wheel is fixedly arranged on the secondary transmission shaft, the left end of the secondary transmission shaft is fixedly connected to the rotating shaft of the left finger-clamp type seed metering device, and the right end of the secondary transmission shaft is fixedly connected to the rotating shaft of the right finger-clamp type seed metering device; the secondary transmission chain transmits the driven sprocket and the secondary transmission wheel together for driving the secondary transmission shaft to rotate.

[0009] The soil suppression and covering device includes a main shaft, which is fixedly arranged at the right bottom position of the frame, passes through the front and rear of the frame and is fixedly connected through an axle seat, a driving sprocket is fixedly arranged at the front outer position of the main shaft, and ground wheels are fixedly arranged on the main shaft at equal intervals.

[0010] The intermediate sprocket is connected with the driving sprocket through a driving chain sleeve transmission, and the contact and rotation between the ground wheel and the ground drive the intermediate sprocket to rotate.

[0011] The use process of this corn reasonable dense planting no-till fertilization staggered seeding device is as follows: first, the suspension frame is connected to the rear of the tractor. During the movement of the tractor, the output power of the tractor is transmitted to the reducer, and the reducer drives the rotating shaft of the disc sawtooth furrow opener to rotate, and drives the disc sawtooth furrow opener to rotate at high speed; at the same time, the frame moves to the left side driven by the tractor, drives the furrowing assembly to furrow the ground, and the soil suppression and covering device moves to the left side driven by the tractor, and drives the main shaft to rotate through the shaft seat through the contact between the ground wheel and the ground, and utilizes the driving sprocket The intermediate sprocket of the fertilizer box transmission device is driven to rotate, and the drive chain is used to drive the driving wheel of the fertilizer discharger to rotate, so that the fertilizer in the fertilizer box finally falls into the groove formed by the disc sawtooth furrow opener; at the same time, under the rotation of the intermediate sprocket, the main transmission chain of the seed box transmission device transmits power to the sprocket, the sprocket drives the transmission shaft to rotate, and at the same time drives the driven sprocket to rotate, and the secondary transmission chain is used to drive the secondary transmission wheel on the secondary transmission shaft to rotate, and drive the left and right finger-clamp type seeding devices to rotate, and the symmetrical staggered setting of the finger clamps of the left and right finger-clamp type seeding devices is used to achieve the staggered seeding time, and finally achieve the staggered precise seeding of corn seeds, and the corn seeds in the parallel seed boxes are sown through the seeding tube, which not only increases the planting density of corn, but also meets the agronomic requirements of reasonable dense planting. The above process is the use process of this no-tillage staggered seeder for reasonable dense planting of corn.

[0012] The fertilizer box transmission device includes a transmission chain, a fertilizer discharger driving wheel is fixedly arranged at the front side of the fertilizer box near the left side, an intermediate sprocket is fixedly arranged at the lower right side of the tensioning wheel, and the intermediate sprocket is fixedly connected to the front side of the frame; the upper part of the transmission chain is sleeved with the fertilizer discharger driving wheel, and the lower part of the transmission chain is sleeved with the tensioning wheel and the intermediate sprocket for transmission. The main purpose of this arrangement is to enable the fertilizer in the fertilizer box to fall into the groove formed by the fertilizer furrow opener through the setting of the fertilizer box transmission device, thereby playing a role in centralized fertilization.

[0013] The seed box transmission device includes a main transmission chain, a transmission shaft fixedly arranged at a lower position of the finger-clamp type seed metering device in a transverse direction, and the transmission shaft is fixedly connected to the left and right ends of the frame through an axle seat; a sprocket is fixedly arranged at the right position of the middle sprocket of the fertilizer box transmission device, and is fixedly arranged at the front side of the frame; the main transmission chain is sleeved on the sprocket and the middle sprocket; the speed regulator is fixedly arranged at the right position of the sprocket, and is sleeved on the left end position of the transmission shaft, which is used to adjust the rotation speed of the transmission shaft; the driven sprocket is fixedly arranged on the transmission shaft at equal intervals, and the driven sprocket is fixedly arranged at the corresponding lower position on the right side of the finger-clamp type seed metering device, and the secondary transmission chain connects the driven sprocket and the finger-clamp type seed metering device to drive the finger-clamp type seed metering device to accurately sow. The speed regulator is set to achieve synchronization of the rotation speeds of all the driven sprockets on the transmission shaft, so that all seed boxes can maintain accurate sowing at the same speed, thereby improving the accurate sowing of corn seeds.

[0014] The soil-pressing and covering device is fixedly arranged on the right side of the sowing furrow opener, and is used for pressing and covering the seeds after sowing. The main purpose of such arrangement is: on the one hand, by the arrangement of the soil-pressing and covering device, the seeds are pressed and covered with soil after corn sowing, thereby improving the emergence rate of corn seeds; on the other hand, by the contact between the ground wheel of the soil-pressing and covering device and the ground, the main shaft is driven to rotate, and the driving sprocket is driven to rotate, and the middle sprocket of the fertilizer box transmission device is driven to rotate through the transmission chain, and finally the rotation of the fertilizer box rotation device and the seed box transmission device is realized, which plays a role in staggered sowing of corn seeds while fertilizing, improves the planting density of corn, plays a role in reasonable close planting, and thus improves the corn yield.

[0015] The finger-clamp type seed metering device is fixedly set at the bottom position of the parallel seed boxes, and a finger-clamp type seed metering device is set at the bottom of each parallel seed box, and the finger-clamp type seed metering device is set symmetrically on the left and right; the main purpose of such a setting is to utilize the symmetrical staggered setting of the finger clamps of the left and right finger-clamp type seed metering devices to achieve staggered seeding time, and finally achieve staggered and precise seeding of corn seeds.

[0016] The finger-clamp type seed metering device includes a finger-clamp type seed metering device body, which is a disc structure. The finger clamps are evenly arranged around the circumference of the finger-clamp type seed metering device body and are used for precision sowing of corn seeds. The main purpose of such arrangement is: through the symmetrical staggered arrangement of the finger clamps of the left and right finger-clamp type seed metering devices, the seeding time is staggered, thereby ultimately achieving staggered precision sowing of corn seeds, increasing the planting density of corn, and meeting the agronomic requirements of reasonable dense planting.

[0017] The frame, suspension frame, reducer, disc sawtooth furrow opener, four-bar profiling mechanism, furrowing assembly, fertilizer box, seed box, fertilizer box transmission device, finger clamp, seed meter, seed box transmission device and soil suppression and covering device belong to the scope of the prior art, and the technical personnel in this field should be aware of the technology. There is no need to describe the principles and structures of the above-mentioned prior art components in detail.

[0018] Beneficial effects of the invention: The invention provides a corn reasonable dense planting no-till fertilization staggered sowing device, which has a simple design structure, scientific and reasonable, and easy operation; it realizes the staggered sowing of corn seeds, reasonably improves the planting density of corn, and increases the per mu yield of corn. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the present invention;

[0020] Figure 2 It is a rear side view of the present invention;

[0021] Figure 3This is a schematic diagram of the staggered installation of the finger-clamp type seed metering device of the present invention;

[0022] Markings in the figure: 1. frame, 2. suspension frame, 3. reducer, 4. disc sawtooth furrow opener, 5. four-bar profiling mechanism, 6. fertilizer box, 7. parallel seed box, 8. furrowing assembly, 9. fertilizer box transmission device, 901. transmission chain, 902. fertilizer discharger driving wheel, 903. intermediate sprocket, 10. finger-clamp type seed metering device, 101. finger-clamp type seed metering device body, 102. finger clamp, 11. seed box transmission device, 111. main transmission chain, 112. transmission shaft, 113. speed regulator, 114. sprocket, 115. driven sprocket, 116. secondary transmission chain, 117. secondary rotating wheel, 118. secondary transmission shaft, 12. soil suppression and covering device, 121. main shaft, 122. shaft seat, 123. driving sprocket, 124. ground wheel, 13. seed tube. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0024] As shown in the figure, a corn reasonable dense planting no-till fertilization staggered sowing device comprises a frame 1, a suspension frame 2, a reducer 3, a disc sawtooth furrow opener 4, a four-link profiling mechanism 5, and a fertilizer box 6; a suspension frame 2 for connecting a tractor is fixedly arranged at the upper left position of the frame 1, and the suspension frame 2 is fixedly connected to the front and rear ends of the frame 1; the reducer 3 is fixedly arranged at the right position of the suspension frame 2, and the reducer 3 is fixedly arranged on the frame 1; the disc sawtooth furrow opener 4 is fixedly arranged at equal intervals on the rotating shaft connected to the reducer 3 in transmission. The reducer 3 is used to drive the disc sawtooth furrow opener 4 to rotate and cut and crush the weeds; the four-link profiling mechanism 5 is fixedly arranged at the upper right position of the disc sawtooth furrow opener 4, and is used to fix the upper right part of the disc sawtooth furrow opener 4 with the frame 1; the fertilizer box 6 is fixedly arranged at the right position of the reducer 3, and the parallel seed box 7 is fixedly arranged at the right position of the fertilizer box 6, and the fertilizer box 6 and the parallel seed box 7 are fixedly connected to the upper part of the frame 1; the furrowing assembly 8 is fixedly arranged at the right position of the disc sawtooth furrow opener 4, and is used to The fertilizer box transmission device 9 is fixedly arranged at an inclined position on the front side of the fertilizer box 6, and is used to drive the fertilizer applicator of the fertilizer box transmission device 9 to realize fertilization operation through the rotation of the soil pressing and covering device 12; the finger-clamping seed metering device 10 is fixedly arranged at the bottom position of the parallel seed box 7, and a finger-clamping seed metering device 10 is arranged at the bottom of each parallel seed box 7, and the finger-clamping seed metering device 10 is arranged symmetrically on the left and right; the seed box transmission device 11 is fixedly arranged at the right side position of the fertilizer box transmission device 9, and is used to drive the seed box transmission device 11 The upper finger-clamp type seed metering device 10 performs precision seeding; the soil suppression and covering device 12 is fixedly arranged at the right side of the frame 1, and is fixedly connected to the frame 1 through a connecting plate, and is used for suppressing and covering the soil after corn is sown; the lower seed tube 13 is fixedly arranged at the lower position of the finger-clamp type seed metering device 10, and the lower seed tube 13 is a Y-shaped structure. The upper left side of the lower seed tube 13 is fixedly connected to the lower seed port of the left finger-clamp type seed metering device 10, and the right side of the lower seed tube 13 is fixedly connected to the lower seed port of the right finger-clamp type seed metering device 10, so as to realize the sowing of the left and right finger-clamp type seed metering devices 10.

[0025] The fertilizer box transmission device 9 includes a transmission chain 901, a fertilizer discharger driving wheel 902 is fixedly arranged on the front side of the fertilizer box 6 near the left side, an intermediate sprocket 903 is fixedly arranged on the lower right side of the driving wheel 902, and the intermediate sprocket 903 is fixedly connected to the front side of the frame 1; the upper part of the transmission chain 901 is sleeved with the fertilizer discharger driving wheel 902, and the lower part of the transmission chain 901 is sleeved with the intermediate sprocket 803 for transmission.

[0026] The finger-clamp type seed metering device 10 comprises a finger-clamp type seed metering device body 101, which is a disc structure. The finger clamps 102 are evenly arranged around the circumference of the finger-clamp type seed metering device body 102 for precision sowing of corn seeds.

[0027] The seed box transmission device 11 includes a main transmission chain 111, a transmission shaft 112 is fixedly arranged horizontally at the lower position of the finger-clamp type seed metering device 10, and the transmission shaft 112 is fixedly connected to the left and right ends of the frame 1 through an axle seat; a sprocket 114 is fixedly arranged at the right position of the intermediate sprocket 903 of the fertilizer box transmission device 9, and is fixedly arranged at the front side of the frame 1; the main transmission chain 111 is sleeved on the sprocket 114 and the intermediate sprocket 903; the speed regulator 113 is fixedly arranged at the right position of the sprocket 114, and is sleeved on the left end position of the transmission shaft 112, and is used to adjust the rotation speed of the transmission shaft 112. degree; driven sprockets 115 are fixedly arranged on the transmission shaft 112 at equal intervals and are arranged corresponding to the parallel seed boxes 7, and the driven sprocket 115 is fixedly arranged at the corresponding lower position on the right side of the finger-clamp type seed metering device 10; the secondary transmission wheel 117 is fixedly arranged on the secondary transmission shaft 118, and the left end of the secondary transmission shaft 118 is fixedly connected to the rotating shaft of the left finger-clamp type seed metering device 10, and the right end of the secondary transmission shaft 118 is fixedly connected to the rotating shaft of the right finger-clamp type seed metering device 10; the secondary transmission chain 116 connects the driven sprocket 115 and the secondary transmission wheel 117 in a transmission set to drive the secondary transmission shaft 118 to rotate.

[0028] The soil suppression and covering device 12 includes a main shaft 121, which is fixedly arranged at the right bottom position of the frame 1. The main shaft 121 passes through the front and rear of the frame 1 and is fixedly connected through an axle seat 122. The driving sprocket 123 is fixedly arranged at the front outer position of the main shaft 121, and the ground wheel 124 is fixedly arranged on the main shaft 121 at equal intervals.

[0029] The intermediate sprocket 903 and the driving sprocket 123 are connected and driven by a driving chain, and the intermediate sprocket 903 is driven to rotate by the contact and rotation of the ground wheel 124 with the ground.

[0030] The use process of this corn reasonable dense planting no-till fertilization staggered seeding device is as follows: first, the suspension frame 2 is connected to the rear of the tractor. During the movement of the tractor, the output power of the tractor is transmitted to the reducer 3, and the reducer 3 drives the rotating shaft of the disc sawtooth furrow opener 4 to rotate, and drives the disc sawtooth furrow opener 4 to rotate at a high speed; at the same time, the frame 1 moves to the left side driven by the tractor, drives the furrowing assembly 8 to furrow the ground, and the soil suppression and covering device 12 moves to the left side driven by the tractor, and drives the main shaft 121 to rotate through the shaft seat 122 through the contact between the ground wheel 124 and the ground, and drives the intermediate chain of the fertilizer box transmission device 9 by the driving sprocket 123. The wheel 903 rotates, and the transmission chain 901 drives the fertilizer discharger driving wheel 902 to rotate, so that the fertilizer in the fertilizer box 6 finally falls into the groove formed by the disc sawtooth furrow opener 4; at the same time, under the rotation of the intermediate sprocket 803, the main transmission chain 111 of the seed box transmission device 11 transmits power to the sprocket 114, the sprocket 114 drives the transmission shaft 112 to rotate, and at the same time drives the driven sprocket 115 to rotate, and uses the secondary transmission chain 116 to drive the secondary transmission wheel 117 on the secondary transmission shaft 118 to rotate, and drives the left and right finger-clamp type seeding devices 10 to rotate, and uses the symmetrical staggered setting of the finger clamps 102 of the left and right finger-clamp type seeding devices 10 to achieve staggered sowing time, and finally achieves the staggered precise sowing of corn seeds, and the corn seeds in the parallel seed boxes 7 are sown through the seeding tube 13, which not only improves the planting density of corn, but also meets the agronomic requirements of reasonable dense planting. The above process is the use process of this corn reasonable dense planting, no-tillage fertilization and staggered sowing device.

[0031] Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A corn reasonable dense planting no-tillage fertilization staggered sowing device, comprising a frame, a suspension frame, a speed reducer, a disc sawtooth opener, a four-link profiling mechanism, and a fertilizer box; a suspension frame for connecting a tractor is fixedly arranged on the upper left side of the frame, and the suspension frame is fixedly connected to the front and rear ends of the frame; the speed reducer is fixedly arranged on the right side of the suspension frame, and the speed reducer is fixedly arranged on the frame; the disc sawtooth opener is fixedly arranged on a rotating shaft connected to the speed reducer at equal intervals, and the disc sawtooth opener is driven by the speed reducer to rotate for rotary cutting and crushing of weeds; the four-link profiling mechanism The shaped mechanism is fixedly arranged at the upper right side of the disc sawtooth furrow opener, and is used to fix the upper right side of the disc sawtooth furrow opener to the frame; the fertilizer box is fixedly arranged at the right side of the reducer, and the parallel seed box is fixedly arranged at the right side of the fertilizer box, and the fertilizer box and the parallel seed box are fixedly connected to the upper part of the frame; the furrowing assembly is fixedly arranged at the right side of the disc sawtooth furrow opener, and is used for furrowing and sowing on farmland; the fertilizer box transmission device is fixedly arranged at the inclined position on the front side of the fertilizer box, and is used to drive the fertilizer applicator of the fertilizer box transmission device to realize fertilization operation through the rotation of the suppression and covering device; it is characterized in that: The finger-clamp type seed meter is fixedly arranged at the bottom of the parallel seed boxes, and a finger-clamp type seed meter is arranged at the bottom of each parallel seed box, and the finger-clamp type seed meter is arranged symmetrically on the left and right; the seed box transmission device is fixedly arranged at the right side of the fertilizer box transmission device, and is used to drive the finger-clamp type seed meter on the seed box transmission device for precision sowing; the soil pressing and covering device is fixedly arranged at the right side of the frame, and is fixedly connected to the frame through a connecting plate, and is used for pressing and covering the soil after corn sowing; the seed lowering tube is fixedly arranged at the lower position of the finger-clamp type seed meter, and the seed lowering tube is a Y-shaped structure, the upper left side of the seed lowering tube is fixedly connected to the seed lowering port of the left finger-clamp type seed meter, and the right side of the seed lowering tube is fixedly connected to the seed lowering port of the right finger-clamp type seed meter, so as to realize the sowing of the left and right finger-clamp type seed meters; The finger-clip type seed metering device includes a finger-clip type seed metering device body, which is a disc structure. The finger clamps are evenly arranged around the circumference of the finger-clip type seed metering device body and are used for precision sowing of corn seeds. The symmetrical staggered arrangement of the finger clamps of the left and right finger-clip type seed metering devices is used to achieve staggered sowing times.

2. The corn reasonable dense planting no-tillage fertilization staggered sowing device according to claim 1 is characterized by: The fertilizer box transmission device includes a transmission chain, a fertilizer discharger driving wheel is fixedly arranged on the front side of the fertilizer box near the left side, an intermediate sprocket is fixedly arranged on the lower right side of the driving wheel, and the intermediate sprocket is fixedly connected to the front side of the frame; the upper part of the transmission chain is sleeved with the fertilizer discharger driving wheel, and the lower part of the transmission chain is sleeved with the intermediate sprocket for transmission.

3. The corn reasonable dense planting and no-tillage fertilization staggered sowing device according to claim 1 is characterized by: The seed box transmission device includes a main transmission chain, a transmission shaft fixedly arranged horizontally at the lower position of the finger-clamp type seed metering device, and the transmission shaft is fixedly connected to the left and right ends of the frame through an axle seat; the sprocket is fixedly arranged at the right position of the middle sprocket of the fertilizer box transmission device, and is fixedly arranged on the front side of the frame; the main transmission chain is sleeved on the sprocket and the middle sprocket; the speed regulator is fixedly arranged at the right position of the sprocket and sleeved on the left end position of the transmission shaft for adjusting the rotation speed of the transmission shaft; the driven sprockets are fixedly arranged on the transmission shaft at equal intervals and are arranged corresponding to the parallel seed boxes, and the driven sprocket is fixedly arranged at the lower position corresponding to the right side of the finger-clamp type seed metering device; the secondary transmission wheel is fixedly arranged on the secondary transmission shaft, the left end of the secondary transmission shaft is fixedly connected to the rotating shaft of the left finger-clamp type seed metering device, and the right end of the secondary transmission shaft is fixedly connected to the rotating shaft of the right finger-clamp type seed metering device; the secondary transmission chain transmits the driven sprocket and the secondary transmission wheel together, and is used to drive the secondary transmission shaft to rotate.

4. The corn reasonable dense planting and no-tillage fertilization staggered sowing device according to claim 1 is characterized by: The soil suppression and covering device includes a main shaft, which is fixedly arranged at the right bottom position of the frame, passes through the front and rear of the frame and is fixedly connected through an axle seat, a driving sprocket is fixedly arranged at the front outer position of the main shaft, and ground wheels are fixedly arranged on the main shaft at equal intervals.

5. A corn reasonable dense planting no-tillage fertilization staggered sowing device according to claim 2 or 4, characterized in that: The middle sprocket and the driving sprocket are connected and driven by the driving chain, and the middle sprocket is driven to rotate by the contact and rotation of the ground wheel with the ground.

Images