Direct drill seeder on film

Abstract

The application relates to a film straight-insertion seeder, which comprises a frame, a straight-insertion seeding device arranged on the frame, a power shaft of the straight-insertion seeding device, a crank mechanism arranged in a gearbox and an insertion rod; a first chain wheel and a first chain arranged on the ground wheel shaft transmit power to the power shaft of the straight-insertion seeding device, the power shaft of the straight-insertion seeding device drives the crank mechanism, the crank mechanism drives the insertion rod to make regular up-and-down straight-insertion seeding actions, namely, a duckbill arranged at the end of the insertion rod is driven to seed; the application further comprises a soil lifting device arranged at the rear end of the frame, a power output shaft of a tractor transmits power to the soil lifting device through a universal joint assembly to complete the soil covering work of the duckbill opening hole and the seeding work. The application has reasonable structure and stable application, the design of the cam mechanism and the duckbill completely solves the problems of film tearing, film picking and film hole mispositioning caused by seeding after film laying, meets the agricultural requirements of rhizome seeding, improves the work efficiency and reduces the labor.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of seeding machine, direct sowing machine of rhizome seed. BACKGROUND

[0002] Rain-fed agriculture gives birth to northwest arid area mulching planting.Rhizome crop planting generally adopts the operation mode of ditching, fertilizing, sowing, ridging, covering soil and mulching, and it is necessary to put soil and release seedlings after germination.Before laying film to preserve soil moisture, it is necessary to break film and sow seeds without releasing seedlings, and the research and test results show that, after laying film, hole sowing on film, rhizome grows fast, quality is high, and yield is increased by about 10%.The existing rhizome sowing machine after laying film has problems such as film tearing, film picking and film hole misalignment, and some models cannot meet the agronomic requirements of rhizome sowing. SUMMARY

[0003] The present application aims to avoid the shortcomings of the prior art and provide a film direct sowing machine with reasonable structure, which truly realizes film sowing after laying film.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a film direct sowing machine, which comprises a frame, a suspension frame for connecting with a tractor, which is arranged at one end of the frame, and a seed box supported by a support frame at the top end of the suspension frame; further comprising a ground wheel and a ground wheel shaft for driving the sowing machine to move, the ground wheel shaft is arranged below the frame, the ground wheel is arranged at both ends of the ground wheel shaft, a direct sowing device is arranged on the frame, the direct sowing device comprises a power shaft, a crank mechanism arranged in the gearbox and a sowing rod; a first sprocket and a first chain are arranged on the ground wheel shaft to transmit power to the power shaft of the direct sowing device, the power shaft of the direct sowing device drives the crank mechanism, the crank mechanism drives the sowing rod to make regular up-and-down direct sowing actions, i.e., the duckbill arranged at the end of the sowing rod is driven to sow seeds; further comprising a cam mechanism arranged on the frame for opening the duckbill, a second sprocket and a second chain are further arranged on the ground wheel shaft, the second sprocket and the second chain transmit power to the power input shaft of the cam mechanism, the power input shaft drives the cam mechanism to open the duckbill for sowing and forms an opening hole on the sowing ground; at the same time, the power input shaft of the cam mechanism drives the seed taking device to guide seeds from the seed box into the duckbill through a third sprocket and a third chain; further comprising a soil lifting device arranged at the rear end of the frame, the power output shaft of the tractor drives the soil lifting device through a universal joint assembly to complete the soil covering work of the opening hole of the duckbill and complete the sowing operation.

[0005] Further, the crank mechanism comprises the first sprocket and the first chain driven driving gear, the driving gear drives the intermediate gear engaged therewith to rotate, further drives the two synchronous gears engaged with the intermediate gear and the two cranks to rotate, one end of the two cranks is coaxially arranged with the synchronous gears, the other end of the two cranks is connected with the inserting rod through the hinged connecting rod, so as to drive the inserting rod to make regular up and down straight inserting and sowing actions.

[0006] Further, the two synchronous gears are respectively a first synchronous gear and a second synchronous gear, and the two cranks are respectively a first crank and a second crank; the crank mechanism further comprises a driven non-circular gear engaged with the driving gear, the driven non-circular gear is coaxially arranged with the first synchronous gear and the first crank; the driving gear is also a non-circular gear, the driving gear converts the uniform speed rotation of the power into the non-uniform speed rotation of the driven non-circular gear, realizes horizontal speed compensation, and makes the duckbill realize membrane breaking hole sowing; the second crank is coaxially installed with the second synchronous gear on the gearbox.

[0007] Further, the shaft centers of the two synchronous gears and the intermediate gear are connected into a line, and the included angle between the line and the horizontal plane is 30-60°.

[0008] Further, the cam mechanism comprises a fixed frame for connecting with the frame 1, the power input shaft is arranged on the fixed frame, and the cam is arranged at both ends of the power input shaft; the drawbar shaft is arranged on the fixed frame in parallel with the power input shaft, one end of the two drawbars is respectively installed at both end portions of the drawbar shaft, the other end of the two drawbars is connected with the duckbill through the pull wire; the drawbar bearing is installed on the two drawbars, and the drawbar bearing is connected with the cam, when the cam rotates, one end of the drawbar provided with the pull wire periodically swings with the cam; the duckbill is installed at the end portion of the inserting rod through the duckbill fixing seat, the through hole is arranged on the duckbill fixing seat, the left duckbill and the right duckbill are arranged on both sides of the through hole, when the duckbill is closed, the seed can enter the cavity formed by the left duckbill and the right duckbill, when the cam lifts the drawbar to make the pull wire pull open the left duckbill and the right duckbill, the seed falls into the hole, the duckbill is closed after emergence, and the soil is avoided to be clamped.

[0009] Further, the fixed frame is further provided with the pull wire fixing block for fixing the pull wire.

[0010] Further, the seed taking device comprises a chain wheel connecting frame provided on the seed box, a chain wheel provided on the chain wheel connecting frame, and a seed spoon chain provided on the chain wheel; a seed protection box is provided on the chain wheel connecting frame in the seed box, and a seed conveying box is provided on the chain wheel connecting frame outside the seed protection box; the chain wheel is provided in the seed protection box and the seed conveying box; at least two seed spoon fixing frames are installed on the seed spoon chain, and a small seed spoon and a large seed spoon are provided on the seed spoon fixing frame; a connecting plate connected with the supporting frame is provided on the seed conveying box, and a seed conveying outlet of the seed conveying box is provided above the duckbill; when the third chain wheel and the chain drive the chain wheel, the seed spoon chain is driven to rotate on the chain wheel, the large seed spoon installed on the seed spoon chain takes seeds from the seed box, and then the seeds are conveyed upward and into the seed protection box, so that the seeds taken out excessively fall into the seed box; the seed spoon chain moves horizontally between the outlet of the seed protection box and the inlet of the seed conveying box; at this time, under the action of the gravity of the seeds, the seeds fall from the large seed spoon to the small seed spoon, and then the seeds fall into the duckbill after moving out of the seed conveying box, so that the sowing action is completed.

[0011] Further, the chain wheel connecting frame is triangular, three chain wheels are provided on three top ends of the chain wheel connecting frame, two top corner chain wheels of the triangular chain wheel connecting frame are provided at the outlet of the seed protection box and the inlet of the seed conveying box respectively, and the other top corner chain wheel of the chain wheel connecting frame is provided at the outlet of the seed conveying box.

[0012] Further, a leakage prevention plate is fixedly connected at the inlet of the seed conveying box, and an acceleration plate is fixedly connected at the outlet of the seed conveying box.

[0013] Further, the soil lifting device comprises a power input shaft of the soil lifting device, a soil conveying belt driven by the power input shaft of the soil lifting device, soil conveying side plates provided on both sides of the soil conveying belt, a soil lifting shovel fixedly installed on the soil conveying side plate at a soil lifting end of the soil conveying belt through a connecting plate, a movable adjusting plate provided on the connecting plate connected with the soil conveying side plate at one end, and a fixed adjusting plate provided in the inner side of the soil conveying side plate and connected with the movable adjusting plate through a screw rod and a pull rod; the soil lifting depth of the soil lifting shovel is adjusted through the screw rod, and the screw rod and the pull rod are connected through threads; the power input shaft of the soil lifting device drives the soil conveying belt to rotate, the soil lifting shovel lifts the soil in the furrow, and then the soil conveying belt moves the soil upward and falls into the opening of the duckbill, so that the sowing process is completed.

[0014] The root tuber film direct insertion sowing machine has the advantages of reasonable structure, stable application, and the design of the cam mechanism and the duckbill, which completely solves the problems of film tearing, film picking and film hole mispositioning caused by film laying before sowing, meets the agricultural requirements of root tuber sowing, improves the work efficiency, and reduces the labor. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the root tuber film direct insertion sowing machine.

[0016] Figure 2 for Figure 1 Front view of a root and stem crop film direct-insertion seeder;

[0017] Figure 3 This is an axonometric view of the non-circular gear-double crank straight insertion seeding device and cam device of the seeder of the present invention;

[0018] Figure 4 This is an isometric view of the bridge-type seed-collecting device of the seeder of the present invention;

[0019] Figure 5 This is an isometric view of the soil-lifting device of the seeder of the present invention;

[0020] Figure 6 This is a diagram showing the motion trajectory of the hole seeder in the non-circular gear-double crank straight insertion seeder of the present invention. Detailed Implementation

[0021] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0022] Example 1: As Figures 1-6 As shown, a film-supported direct-insertion seeder includes a frame 1, a suspension frame 2 for connection with a tractor located at one end of the frame 1, and a seed box 4-10 supported at the top of the suspension frame 2 by a support frame; it also includes ground wheels 7 and ground wheel axles 71 for driving the seeder, the ground wheel axle 71 being located below the frame 1, and the ground wheels 7 being located at both ends of the ground wheel axle 71. A direct-insertion seeding device 3 is provided on the frame 1, the direct-insertion seeding device 3 including a power shaft, a crank mechanism and a crank mechanism seeding rod 3-6 provided in a gearbox 3-1; a first sprocket 11 and a first chain 12 provided on the ground wheel axle 71 transmit power to the power shaft of the direct-insertion seeding device 3, the power shaft of the direct-insertion seeding device 3 drives the crank mechanism, and the crank mechanism drives the seeding rod 3-6 to perform regular up and down direct-insertion seeding. The action involves driving the duckbill at the end of the sowing rod 3-6 to sow seeds; it also includes a cam mechanism 5 on the frame 1 for opening the duckbill, and a second sprocket 13 and a second chain 14 on the ground wheel axle 71. The second sprocket 13 and the second chain 14 transmit power to the power input shaft 5-8 of the cam mechanism 5, which drives the cam mechanism 5 to open the duckbill for sowing and form a hole in the sowing ground; at the same time, the power input shaft 5-8 of the cam mechanism 5 drives the seed picking device 4 through the third sprocket 15 and the third chain 16 to guide the seeds from the seed box 4-10 into the duckbill; it also includes a soil lifting device 6 at the rear end of the frame, which drives the soil lifting device 6 through the universal joint assembly 8 to complete the soil covering work of the duckbill hole opening, thus completing the sowing operation.

[0023] The crank mechanism comprises the first sprocket wheel 11 and the first chain 12 driven driving gear 3-2, the driving gear 3-2 drives the intermediate gear 3-11 rotationally engaged with it, further drives the two synchronous gears rotationally engaged with the intermediate gear 3-11, thereby driving the two cranks to rotate, one end of the two cranks is coaxially arranged with the two synchronous gears respectively, the other end of the two cranks is connected with the intercalation rod 3-6 through the hinged connecting link 3-5, thereby driving the intercalation rod 3-6 to make regular up and down straight intercalation action. The two synchronous gears are the first synchronous gear and the second synchronous gear 3-10 respectively, the two cranks are the first crank 3-4 and the second crank 3-12 respectively; the crank mechanism further comprises the driven non-circular gear 3-3 engaged with the driving gear 3-2, the driven non-circular gear 3-3 is coaxially arranged with the first synchronous gear and the first crank 3-4; the driving gear 3-2 is also a non-circular gear, the driving gear 3-2 converts the uniform rotation power into the non-uniform rotation of the driven non-circular gear 3-3, realizes the horizontal speed compensation, and makes the duckbill realize the membrane breaking hole sowing; the second crank 3-12 is coaxially installed on the gearbox 3-1 with the second synchronous gear 3-10. The shaft centers of the two synchronous gears and the intermediate gear 3-11 are connected into a line, and the included angle between the line and the horizontal plane is 30-60°.

[0024] The cam mechanism 5 comprises a fixed frame 5-1 for connecting with the rack 1, a power input shaft 5-8 is arranged on the fixed frame 5-1, and a cam 5-3 is arranged at both ends of the power input shaft 5-8; a pull rod shaft 5-4 is arranged on the fixed frame 5-1 in parallel with the power input shaft 5-8, one end of two pull rods 5-2 is installed at both ends of the pull rod shaft 5-4 respectively, and the other end of the two pull rods 5-2 is connected with the duckbill through a pull wire 5-7; a pull rod bearing 5-5 is installed on the two pull rods 5-2, the pull rod bearing 5-5 is connected with the cam 5-3, when the cam 5-3 rotates, one end of the pull rod 5-2 provided with the pull wire 5-7 periodically swings with the cam 5-3; the duckbill is installed at the end of the intercalation rod 3-6 through a duckbill fixing seat 3-9, a through hole is arranged on the duckbill fixing seat 3-9, a left duckbill 3-7 and a right duckbill 3-8 are arranged on both sides of the through hole, when the duckbill is closed, the seeds can enter the cavity formed by the left duckbill 3-7 and the right duckbill 3-8, when the cam 5-3 lifts the pull rod 5-2 to pull open the left duckbill 3-7 and the right duckbill 3-8, the seeds are dropped into the hole, and the duckbill is closed after emergence, avoiding soil clamping. Figure 3 When the cam 5-3 rotates to the A area, the pull rod 5-2 is lifted, the seeds drop into the hole, and the duckbill is closed after emergence, avoiding soil clamping. A pull wire fixing block 5-6 for fixing the pull wire 5-7 is further arranged on the fixed frame 5-1.

[0025] The seed taking device 4 comprises a chain wheel connecting frame 4-3 provided on the seed box 4-10, a chain wheel 4-4 provided on the chain wheel connecting frame 4-3, and a seed spoon chain 4-9 provided on the chain wheel 4-4; the chain wheel connecting frame 4-3 in the seed box 4-10 is provided with a seed protection box 4-11, and a seed delivery box 4-2 is provided on the chain wheel connecting frame 4-3 outside the seed box 4-10 corresponding to the seed protection box 4-11; the chain wheel 4-4 is provided through the seed protection box 4-11 and the seed delivery box 4-2; at least two seed spoon fixing frames 4-8 are installed on the seed spoon chain 4-9, and a small seed spoon 4-6 and a large seed spoon 4-7 are provided on the seed spoon fixing frame 4-8 and arranged perpendicularly to each other; a connecting plate 4-1 connected with the supporting frame is provided on the seed delivery box 4-2, and a seed delivery outlet of the seed delivery box 4-2 is arranged above the duckbill; when the third chain wheel 15 and the third chain 16 drive the chain wheel 4-4, and then drive the seed spoon chain 4-9 to rotate on the chain wheel 4-4, the large seed spoon 4-7 installed on the seed spoon chain 4-9 takes seeds from the seed box 4-10 and then delivers the seeds upward into the seed protection box 4-11, so that the seeds taken out too much can fall into the seed box 4-10; between the outlet of the seed protection box 4-11 and the inlet of the seed delivery box 4-2, the seed spoon chain 4-9 moves horizontally, at this time, under the action of the gravity of the seeds, the seeds fall from the large seed spoon 4-7 to the small seed spoon 4-6, and then the seeds are delivered out of the seed delivery box 4-2 and fall into the duckbill, thereby completing the seeding action.

[0026] The chain wheel connecting frame 4-3 is triangular, and three chain wheels 4-4 are respectively provided at three top ends of the chain wheel connecting frame 4-3; two top corner chain wheels of the triangular chain wheel connecting frame 4-3 are respectively arranged at the outlet of the seed protection box 4-11 and the inlet of the seed delivery box 4-2, and the other top corner chain wheel of the chain wheel connecting frame 4-3 is arranged at the outlet of the seed delivery box 4-2, and the shaft of the top corner chain wheel is driven by the third chain wheel 15 and the third chain 16.

[0027] A leakage prevention plate 4-5 is fixedly connected at the inlet of the seed delivery box 4-2, and an acceleration plate 4-12 is fixedly connected at the outlet of the seed delivery box 4-2.

[0028] The soil lifting device 6 comprises a power input shaft 6-9 of the soil lifting device 6, a soil conveying belt 6-8 driven by the power input shaft of the soil lifting device 6, soil conveying side plates 6-1 arranged on both sides of the soil conveying belt 6-8, a soil lifting shovel 6-2 fixedly installed on the soil conveying side plate 6-1 at the soil lifting end of the soil conveying belt 6-8 through a connecting plate 6-7, a movable adjusting plate 6-3 arranged on the connecting plate 6-7 connected to one end of the soil conveying side plate 6-1, the movable adjusting plate 6-3 being connected to a fixed adjusting plate 6-4 arranged on the inner side of the soil conveying side plate 6-1 through a screw rod 6-5 and a pull rod 6-6, the depth of the soil lifting shovel 6-2 into the soil being adjusted through the screw rod 6-5, and the screw rod 6-5 and the pull rod 6-6 being connected through threads; the power input shaft 6-9 of the soil lifting device 6 drives the soil conveying belt 6-8 to rotate, the soil lifting shovel 6-2 lifts the soil in the furrow, the soil conveying belt 6-8 moves the soil upwards, and the soil falls into the duckbill hole opening, thereby completing the seeding process.

[0029] In operation, the tuber film direct insertion seeder is hung on the tractor rear suspension frame 2, and advances with the tractor traction, the clutch handle 9 is pulled, the ground wheel assembly 7 transmits power to the driving non-circular gear 3-2 of the direct insertion seeding device 3 through the chain wheel and chain, the driving non-circular gear 3-2 converts the uniform rotation into the non-uniform rotation of the driven non-circular gear 3-3 through meshing, drives the synchronous gear 3-10 and the intermediate gear 3-11 to rotate, drives the two cranks 3-4 to rotate synchronously, and drives the connecting rod 3-5 connected thereto to make the insertion rod 3-6 make regular direct insertion seeding action.

[0030] Meanwhile, the ground wheel assembly 7 transmits power to the power input shaft 5-8 of the duckbill opening cam mechanism 5 through the chain wheel and chain, drives the cam 5-3 to rotate, and the pull rod 5-2 periodically swings with the cam 5-3, synchronously pulls the pull wire 5-7 to open and close the left duckbill 3-7 and the right duckbill 3-8 of the direct insertion seeding device 3, the power input shaft 5-8 of the cam mechanism 5 is connected with the power input shaft of the seed taking device 4 through the chain wheel and chain, drives the seed spoon chain 4-9 to rotate, the large seed spoon 4-7 installed on the spoon chain 4-9 takes seeds from the seed box 4-10 and then conveys the seeds upwards, the seeds fall into the small seed spoon 4-6 in the horizontal movement process under the action of the gravity, the seeds taken too much fall back into the seed box 4-10, and then the seeds move in the seed protection box 4-11, and then the seeds fall into the duckbill of the direct insertion seeding device 3 through the seed conveying box 4-2, are planted in the film hole under the direct insertion horizontal speed compensation of the direct insertion seeding device 3, are pulled to open the duckbill under the action of the pull wire 5-7 when the duckbill is lifted, and are closed after the duckbill is lifted, so that the soil is avoided from being clamped,

[0031] Meanwhile, the tractor power output shaft transmits power to the power input shaft of the soil lifting device 6 through the universal joint assembly 8, drives the soil conveying belt 6-8 to rotate, the soil lifting shovel 6-2 lifts the soil in the furrow, the soil conveying belt 6-8 moves the soil upwards, and the soil falls into the duckbill hole opening, thereby completing the tuber seed seeding process, and the seeding operation is repeatedly completed.

[0032] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A direct seeding machine on film, comprising a frame, a hanger for connecting with a tractor arranged at one end of the frame, and a seed box supported by a support frame at the top end of the hanger; further comprising a ground wheel and a ground wheel shaft for driving the seeding machine to move, the ground wheel shaft being arranged below the frame, and the ground wheel being arranged at both ends of the ground wheel shaft, characterized in that: the ground wheel shaft is arranged to be rotatable relative to the frame, and the ground wheel is arranged to be rotatable relative to the ground wheel shaft. The direct sowing device is arranged on the frame, and comprises a power shaft of the direct sowing device, a crank mechanism arranged in a gearbox and a sowing rod; the first sprocket and the first chain arranged on the ground wheel shaft transmit power to the power shaft of the direct sowing device, the power shaft of the direct sowing device drives the crank mechanism, the crank mechanism drives the sowing rod to make regular up-and-down direct sowing actions, i.e. the duckbill arranged at the end of the sowing rod is driven to sow seeds; the cam mechanism arranged on the frame is used to open the duckbill; the second sprocket and the second chain arranged on the ground wheel shaft transmit power to the power input shaft of the cam mechanism, the power input shaft drives the cam mechanism to open the duckbill to sow seeds and form an opening on the ground; meanwhile, the power input shaft of the cam mechanism drives the seed taking device to guide the seeds from the seed box into the duckbill through the third sprocket and the third chain; the soil lifting device arranged at the rear end of the frame is driven by the power output shaft of the tractor through the universal joint assembly to complete the soil covering work of the opening of the duckbill and complete the sowing operation; The crank mechanism comprises a driving gear driven by the first sprocket and the first chain, the driving gear drives a middle gear in engagement therewith to rotate, further driving two synchronous gears and two cranks in engagement with the middle gear to rotate, one end of the two cranks is arranged coaxially with the synchronous gears, and the other end of the two cranks is connected with the sowing rod through the hinged connecting rod, so as to drive the sowing rod to make regular up-and-down direct sowing actions; The cam mechanism comprises a fixing frame used to be connected with the frame, the power input shaft is arranged on the fixing frame, and cams are arranged at both ends of the power input shaft; the pull rod shaft is arranged on the fixing frame in parallel with the power input shaft, one end of each of the two pull rods is mounted at both ends of the pull rod shaft, and the other end of each of the two pull rods is connected with the duckbill through a pull wire; pull rod bearings are mounted on the two pull rods, the pull rod bearings are connected with the cams, when the cams rotate, one end of the pull rod provided with the pull wire periodically swings with the cams; the duckbill is mounted at the end of the sowing rod through a duckbill fixing seat, a through hole is arranged on the duckbill fixing seat, the left duckbill and the right duckbill are arranged on both sides of the through hole, when the duckbill is closed, the seeds can enter the cavity formed by the left duckbill and the right duckbill, when the cam lifts the pull rod to open the left duckbill and the right duckbill, the seeds drop into the hole, and the duckbill is closed after the seeds are taken out to avoid soil clamping; The seed taking device comprises a chain wheel connecting frame provided on the seed box, a chain wheel provided on the chain wheel connecting frame, and a seed spoon chain provided on the chain wheel; a seed protection box is provided on the chain wheel connecting frame in the seed box, and a seed conveying box is provided on the chain wheel connecting frame outside the seed protection box; the chain wheel is provided in the seed protection box and the seed conveying box; at least two seed spoon fixing frames are installed on the seed spoon chain, and a small seed spoon and a large seed spoon are provided on the seed spoon fixing frame; a connecting plate connected with the supporting frame is provided on the seed conveying box, and a seed conveying outlet of the seed conveying box is provided above the duckbill; the third chain wheel and the third chain drive the chain wheel, and then drive the seed spoon chain to rotate on the chain wheel; the large seed spoon installed on the seed spoon chain takes seeds from the seed box, and then conveys the seeds upward and into the seed protection box, so that the seeds taken out excessively fall into the seed box; during the horizontal movement of the seed spoon chain between the outlet of the seed protection box and the inlet of the seed conveying box, the seeds fall from the large seed spoon to the small seed spoon under the gravity of the seeds, and then the seeds fall into the duckbill after moving out of the seed conveying box, so that the sowing action is completed.

2. The on-film direct-attach seeders of claim 1, wherein, The two synchronous gears are a first synchronous gear and a second synchronous gear, and the two cranks are a first crank and a second crank; the crank mechanism further comprises a driven non-circular gear engaged with the driving gear, and the driven non-circular gear is coaxially arranged with the first synchronous gear and the first crank; the driving gear is also a non-circular gear, and the driving gear converts the uniform rotation of the power into the non-uniform rotation of the driven non-circular gear, so as to realize horizontal speed compensation and make the duckbill realize membrane breaking hole sowing; the second crank is coaxially installed on the gearbox with the second synchronous gear.

3. The on-film direct-attach seeders of claim 1, wherein, The shafts of the two synchronous gears and the intermediate gear are connected into a line, and the angle between the line and the horizontal plane is 30-60°.

4. The on-film direct-attach seeders of claim 1, wherein, A pull wire fixing block for fixing the pull wire is further provided on the fixing frame.

5. The on-film direct-attach seeders of claim 1, wherein, The chain wheel connecting frame is triangular, three chain wheels are respectively provided at the three top ends of the chain wheel connecting frame, two top corner chain wheels of the triangular chain wheel connecting frame are respectively arranged at the outlet of the seed protection box and the inlet of the seed conveying box, and the other top corner chain wheel of the chain wheel connecting frame is arranged at the outlet of the seed conveying box, and the top corner chain wheel is driven by the third chain wheel and the third chain.

6. The on-film direct-attach seeders of claim 1, wherein, A leakage prevention plate is fixedly connected at the inlet of the seed conveying box, and an acceleration plate is fixedly connected at the outlet of the seed conveying box.

7. The on-film direct-attach seeders of claim 1, wherein, The soil lifting device comprises a power input shaft of the soil lifting device, a soil conveying belt driven by the power input shaft of the soil lifting device, soil conveying side plates provided on both sides of the soil conveying belt, a soil lifting shovel fixedly installed on the soil conveying side plate at the soil lifting end of the soil conveying belt through a connecting plate, a movable adjusting plate provided on the connecting plate at the connecting end of the soil conveying side plate, and the movable adjusting plate is connected with a fixed adjusting plate provided on the inner side of the soil conveying side plate through a screw rod and a pull rod, the soil lifting depth of the soil lifting shovel is adjusted through the screw rod, and the screw rod and the pull rod are connected through threads; the power input shaft of the soil lifting device drives the soil conveying belt to rotate, the soil lifting shovel lifts the soil in the furrow, and then the soil conveying belt moves the soil upward and falls into the opening of the duckbill, so that the sowing process is completed.

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