CN112314127A - Automatic seeder with adjustable seeding distance - Google Patents

Abstract

The invention discloses an automatic seeder with adjustable seeding distance, which relates to the technical field of particle seed seeder equipment and comprises a base frame, wherein a hopper and three conveying pipes are fixedly arranged on the top side of the base frame through a support frame, discharging mechanisms are arranged on the three conveying pipes, two idler wheels and three cams are rotatably arranged on the bottom side of the base frame through a central rotating shaft, and a plurality of arc-shaped spokes are uniformly and rotatably arranged on one side of each idler wheel through a plurality of fixing shafts. The invention has reasonable structure and simple operation, the three material conveying pipes are arranged for sowing simultaneously, the discharging mechanism can release seeds for one time by rotating the cam for one circle, the sowing distance is the outer circumference of the roller, the outer circumference of the roller is changed by adjusting the distance between one end of the arc spokes and the central rotating shaft, the longitudinal sowing distance is adjusted, and the distance between the three material conveying pipes, namely the sowing row distance, is adjusted by the distance adjusting cross rod.

Description

Automatic seeder with adjustable seeding distance

Technical Field

The invention relates to the technical field of particle seed sowing machines, in particular to an automatic sowing machine with adjustable sowing distance.

Background

One of the cultivation measures for seeding crops is to sow the seeding material into the soil layer of a certain depth in a certain amount and mode at the right time, in order to improve the seeding quality, seed treatment is needed before fine land preparation and preparation of labor force, animal power, seeding machines and the like is also needed before seeding, according to the crop species, variety characteristics, planting system, cultivation mode and requirements on environmental conditions, a proper seeding time, seeding quantity and seeding method are selected, the seeds are sowed into the soil layer of a certain depth by hand or machines, the growth and the yield of the crops are directly influenced by proper seeding, and the common modes comprise broadcasting, drilling, dibbling and the like.

Among the prior art, when peasant household carries out the small size seeding or the regional seeding that some large-scale machines can't reach, adopt the mode of manual seeding usually, only can sow a kind of hole once by manual seeding, and need bow highly be convenient for that the seed is accurate to fall into kind of hole with the whereabouts that reduces the seed, intensity of labour is great and inefficiency, the distance of seeding in addition will lean on experience and consciousness control, to the person who is not experienced enough, the operation degree of difficulty is great, therefore we disclose a seeding distance adjustable automatic seeder and satisfy people's demand.

Disclosure of Invention

The invention aims to provide an automatic seeder with adjustable seeding distance, which aims to solve the problems in the prior art, the automatic seeder is used for seeding simultaneously by arranging three material conveying pipes, the discharging mechanism is driven to do linear reciprocating motion through a cam and release seeds, the seeds are released once when two rollers rotate for one circle, the seeding distance of the seeds is the outer circumference of the rollers, the outer circumference of the rollers is changed by adjusting the distance between one end of a plurality of arc spokes and a central rotating shaft, the longitudinal seeding distance is adjusted, and the adjustment of the distance between the three material conveying pipes is realized by adjusting a distance adjusting cross rod, namely the seeding row distance is adjusted.

In order to achieve the above purpose, the present application provides the following technical solutions: an automatic seeder with adjustable seeding distance comprises a base frame, wherein a hopper is fixedly arranged on the top side of the base frame through a support frame, two fixed cross rods are fixedly arranged on the top side of the base frame, the two fixed cross rods are parallel to each other and are positioned at different heights, main chutes are respectively arranged on the top sides of the two fixed cross rods, three material conveying pipes are arranged on the top sides of the two fixed cross rods, the material conveying pipes positioned at the middle positions are respectively fixedly arranged on the two fixed cross rods through two first fixed blocks, the material conveying pipes positioned at the two side positions are respectively arranged in the two main chutes in a sliding manner through two sliding blocks, material discharging mechanisms are respectively arranged on the three material conveying pipes, two idler wheels are rotatably arranged on the bottom side of the base frame through a central rotating shaft, three cams respectively matched with the three material discharging mechanisms are sleeved on the central rotating shaft, and a plurality of arc-shaped, the both ends of center pivot are located two the gyro wheel position department all cup joints and installs the reel, and is a plurality of the one end of arc spoke all passes through the haulage rope and evenly connects on the reel.

Based on the structure, seeds stored in the hopper respectively enter the three conveying pipes, the two rollers rotate and drive the three cams to rotate through the central rotating shaft, the variable radius of the cams enables the discharging mechanism to act and release the seeds, the seeds slide to the ground along the conveying pipes, the two rollers rotate to release the seeds once, the distance between the seeds is the outer circumference of the rollers, the conveying pipes on the two sides can slide in the main sliding grooves of the fixed cross rods through the sliding blocks, the conveying pipes are close to or far away from the conveying pipes in the middle position, the transverse adjusting distance is achieved, the winding wheel is rotated, one ends of the arc-shaped spokes are respectively pulled by the plurality of pulling ropes and close to the winding wheel, the arc-shaped spokes are respectively rotated around the corresponding fixed shafts, the other ends of the arc-shaped spokes are far away from the winding wheel, the outer circumference of the rollers is.

Preferably, the drop feed mechanism includes the second fixed block, all seted up first dodge hole and first spout and fixed mounting on the second fixed block on the conveying pipeline, first dodge the hole with the tube hole looks adaptation of conveying pipeline, slidable mounting has the first slide of seting up the round hole in the first spout, the round hole with correspond tube hole looks adaptation, the bottom side fixed mounting of first slide has T shape cylinder, cup joint on the T shape cylinder and install the spring, the cylindrical bottom side of T shape with cam looks adaptation.

Furthermore, the first sliding plate and the T-shaped cylinder slide along the first sliding groove in the second fixing block, the spring enables the bottom end of the T-shaped cylinder to be in contact with the cam all the time, the cam enables the T-shaped cylinder to reciprocate along the first sliding groove through radius changing when rotating, when the T-shaped cylinder moves to the highest point, the round hole in the first sliding plate is overlapped with the pipe opening of the conveying pipe, the conveying pipe pipeline is enabled to be smooth, seeds can smoothly slide through the round hole, when the T-shaped cylinder is located at the non-highest point, the conveying pipe is blocked by the first sliding plate, and the seeds stop sliding.

Preferably, second studs are fixedly mounted on the top sides of the first sliding plates, adjusting nuts are screwed on the second studs, and the bottom sides of the adjusting nuts are matched with the top sides of the corresponding second fixing blocks.

Furthermore, the distance from the bottom side of the nut to the first sliding plate can be adjusted by rotating the nut, so that the distance between the T-shaped cylinder and the cam is adjusted, and finally, the opening size of a channel formed by the first sliding plate and the material conveying pipe is controlled to adapt to the sowing of seeds with different sizes.

Preferably, a first stud is fixedly installed on the top side of the feed delivery pipe located at the middle position, two distance adjusting cross arms are sequentially installed on the first stud in a sleeved mode, the two distance adjusting cross arms are arranged in a crossed mode, two long waist holes are formed in one side of each distance adjusting cross arm, two fixing columns are correspondingly and fixedly installed on the top sides of the two feed delivery pipes located at the positions of the two sides, the four fixing columns are installed in the four corresponding long waist holes respectively, and the four fixing columns slide in the corresponding long waist holes.

Furthermore, three rows of seeds are simultaneously sown through the three conveying pipes, sowing efficiency is improved, the two distance-adjusting cross arms rotate on the first stud, and an included angle between the two distance-adjusting cross arms is adjusted, so that the conveying pipes on two sides slide in the main sliding groove along with the sliding block, equidistant transverse distance adjustment is carried out on the conveying pipes on two sides, and transverse sowing intervals of three rows of seeds are adjusted.

Preferably, a locking nut is screwed on the first stud, and the bottom side of the locking nut is matched with the top side of the corresponding distance-adjusting cross arm.

Furthermore, the locking nut is rotated on the first stud, so that the bottom side of the locking nut is close to or far away from the top side of the distance adjusting cross arm, the locking and releasing of the two distance adjusting cross arms are realized, and the adjustment is convenient.

Preferably, it is three lie in on the conveying pipeline the equal fixed mounting in blowing mechanism's top side position department has the third fixed block, and is three the second has all been seted up on the third fixed block and has been dodged hole and second spout, it is three the second dodge the hole respectively with correspond the tube hole looks adaptation of conveying pipeline, it is three equal slidable mounting has the picture peg in the second spout, it is three the picture peg respectively with the tube hole looks adaptation that corresponds the conveying pipeline.

Furthermore, through setting up the picture peg, can plug the picture peg on the third fixed block, and then block three conveying pipeline respectively, realize selecting single file or multirow seeding, can make the seeder stop the seeding when the regional removal of non-seeding simultaneously.

Preferably, the bottom of three conveying pipeline all cup joints and installs the bending pipe, be close to on the bed frame one side fixed mounting of hopper has the traction lever, the bottom side fixed mounting of bed frame has two arc support bars.

Further, through carrying out the buckling of certain angle to the pipe of buckling to the adjustment is buckled the height on pipe and ground, the accurate seeding of being convenient for can pull the bed frame through the traction lever and make it remove, and two arc support bars play the effect that supports the protection, can prevent that the bottom of buckling the pipe from colliding ground, cause the jamming.

Preferably, a spline runner is fixedly mounted on one side of each of the two reels, and the two spline runners are coaxial with the two reels.

Furthermore, the spinning reel is convenient to operate and rotate through the spline rotating wheel, the spline structure of the spline rotating wheel can increase friction force, the holding is convenient, and the operation is prevented from slipping.

Preferably, two one side of gyro wheel all is equipped with a plurality of torsional springs, and is a plurality of the one end of torsional spring is all rotated and is installed and is corresponded on the lateral wall of gyro wheel, and the other end rotates respectively and installs a plurality of that correspond on the lateral wall of arc spoke.

Furthermore, a plurality of torsional springs make a plurality of arc spokes rotate along the fixed shaft through torsion, and the one end that is close to the reel is always in the state that moves to one side of keeping away from the reel, makes a plurality of haulage ropes tighten.

Preferably, one side intercommunication of hopper has the four-way pipe, the one end intercommunication that the four-way pipe is located intermediate position department is on the conveying pipeline that is located the middle part position, and both ends all cup joint in addition and install L shape connecting pipe, and the one end of two L shape connecting pipes communicates respectively on the conveying pipeline that corresponds.

Furthermore, when the distance between the conveying pipes on two sides and the conveying pipe in the middle is adjusted, the four-way pipe can be smoothly connected with the conveying pipes on two sides through the two L-shaped connecting pipes, so that the smooth pipeline is ensured, and the seeds can slide down conveniently.

The feeding mechanism is reasonable in structure, seeds stored in the hopper respectively enter the three feeding pipes, the two rollers rotate and drive the three cams to rotate through the central rotating shaft, the variable radius of the cams enables the discharging mechanism to act and release the seeds, the seeds slide to the ground along the feeding pipes, the two rollers rotate for one circle to release the seeds, the distance between the seeds is the outer circumference of the rollers, the feeding pipes on the two sides can slide in the main sliding grooves of the fixed cross rods through the sliding blocks so as to be close to or far away from the feeding pipes in the middle position, the transverse distance adjustment is realized, the winding wheel is rotated, one ends of the arc spokes are respectively pulled by the plurality of traction ropes and close to the winding wheel, the arc spokes are respectively rotated around the corresponding fixed shafts, the other ends of the arc spokes are far away from the winding wheel, the outer circumference of the rollers is further changed.

In the invention, the bottom end of the T-shaped cylinder is always in contact with the cam through the spring, the T-shaped cylinder reciprocates along the first chute through the radius change when the cam rotates, when the T-shaped cylinder moves to the highest point, the round hole on the first sliding plate is overlapped with the pipe orifice of the feed delivery pipe, seeds can smoothly slide through the round hole, when the T-shaped cylinder is not at the highest point, the feed delivery pipe is blocked by the first sliding plate, the seeds stop sliding, the distance between the bottom side of the nut and the first sliding plate can be adjusted through arranging the rotating nut, so that the distance between the T-shaped cylinder and the cam is adjusted, and the opening size of a channel formed by the first sliding plate and the feed delivery pipe is finally controlled to adapt to the sowing of seeds with different sizes.

According to the invention, three rows of material conveying pipes are used for sowing simultaneously, so that the sowing efficiency is improved, the two distance-adjusting cross arms rotate on the first stud, the included angle between the two distance-adjusting cross arms is adjusted, the material conveying pipes on two sides slide in the main sliding chute along with the sliding block, so that the material conveying pipes on two sides are adjusted at equal distance transversely, the transverse sowing distance of three rows of seeds is adjusted, and the locking and releasing of the two distance-adjusting cross arms are realized by rotating the locking nut on the first stud.

According to the invention, through the arrangement of the inserting plate, the inserting plate can be inserted and pulled out of the third fixing block, so that the three conveying pipes are respectively blocked, single-row or multi-row sowing is realized, meanwhile, the sowing machine can stop sowing when moving in a non-sowing area, the height between the bent pipe and the ground is adjusted by bending the bent pipe at a certain angle, accurate sowing is facilitated, the base frame can be pulled and moved through the traction rod, the two arc-shaped support bars play a role in supporting and protecting, and the bottom end of the bent pipe can be prevented from colliding with the ground to cause clamping stagnation.

According to the invention, the reel is convenient to operate and rotate through the spline rotating wheel, the spline structure of the spline rotating wheel can increase friction force, the reel is convenient to hold and prevent operation from slipping, the plurality of arc-shaped spokes are enabled to rotate along the fixed shaft through the torsion force of the plurality of torsion springs, one end close to the reel is always in a state of moving to one side far away from the reel, the plurality of traction ropes are tightened, and when the distance between the conveying pipes on two sides and the conveying pipe on the middle position is adjusted, the four-way pipe and the conveying pipes on two sides can be smoothly connected through the two L-shaped connecting pipes, so that the smooth pipeline is ensured, and the seeds can conveniently slip.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of the enlarged portion of the area A in FIG. 3 according to the present invention;

FIG. 5 is a schematic perspective view of a roller region according to the present invention;

FIG. 6 is a schematic perspective view of a connecting tube region according to the present invention;

FIG. 7 is a schematic perspective view of a distance-adjusting cross arm region according to the present invention;

fig. 8 is a partial sectional structure diagram of the board inserting region of the invention.

In the figure: 1. a base frame; 2. a draw bar; 3. a support frame; 4. a hopper; 5. an L-shaped connecting pipe; 6. inserting plates; 7. a second fixed block; 8. a delivery pipe; 9. a distance-adjusting cross arm; 10. fixing a column; 11. bending the tube; 12. the arc-shaped supporting strips; 13. a roller; 14. arc-shaped spokes; 15. a fixed shaft; 16. a torsion spring; 17. a hauling rope; 18. a central rotating shaft; 19. a spline gear wheel; 20. a reel; 21. a four-way pipe; 22. a slider; 23. a spring; 24. a first slide plate; 25. fixing the cross bar; 26. a main chute; 27. a first stud; 28. locking the nut; 29. a long waist hole; 30. a first fixed block; 31. a circular hole; 32. a third fixed block; 33. a cam; 34. a T-shaped cylinder; 35. adjusting the nut; 36. a second stud.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-8, an automatic seeder with adjustable seeding distance comprises a base frame 1, wherein the base frame 1 can be made of hard material in the prior art, such as a frame welded by steel pipes.

There is hopper 4 top side of bed frame 1 through 3 fixed mounting of support frame, top side fixed mounting of bed frame 1 has two fixed horizontal pole 25, two fixed horizontal pole 25 are parallel to each other and are located not co-altitude and top side and have all seted up main spout 26, the top side of two fixed horizontal pole 25 is equipped with three conveying pipeline 8, conveying pipeline 8 that is located intermediate position department is respectively through two first fixed block 30 fixed mounting on two fixed horizontal pole 25, conveying pipeline 8 that is located both sides position department all through two slider 22 slidable mounting in two main spout 26, the seed gets into respectively in three conveying pipeline 8 through hopper 4, conveying pipeline 8 that is located both sides can slide in the main spout 26 of fixed horizontal pole 25 through slider 22, in order to realize being close to or keeping away from mutually with the conveying pipeline 8 that is located intermediate position department, realize horizontal adjusting distance.

And the three conveying pipes 8 are respectively provided with a discharging mechanism, and the seeds are sequentially released through the discharging mechanisms.

Two rollers 13 are rotatably mounted on the bottom side of the base frame 1 through a central rotating shaft 18, and the base frame 1 is moved through the rotation of the two rollers 13.

Three cams 33 which are respectively matched with the three discharging mechanisms are sleeved on the central rotating shaft 18, the central rotating shaft 18 is driven to rotate and simultaneously drive the three cams 33 to rotate through the rotation of the two rollers 13, the discharging mechanisms act through the variable radius of the cams 33, the two rollers 13 rotate for one circle to release seeds, and the distance between the seeds is the outer circumference of the rollers 13.

One side of two gyro wheels 13 all is evenly rotated through a plurality of fixed axles 15 and is installed a plurality of arc spokes 14, the both ends of central pivot 18 are located two gyro wheels 13 position department and all cup joint and install reel 20, the one end of a plurality of arc spokes 14 all passes through haulage rope 17 and evenly connects on reel 20, rotate reel 20, draw the one end of a plurality of arc spokes 14 respectively and be close to reel 20 through a plurality of haulage ropes 17, make a plurality of arc spokes 14 rotate and the other end keeps away from reel 20 around corresponding fixed axle 15 respectively, and then change gyro wheel 13's outer circumference.

Based on the above structure, seeds stored in the hopper 4 enter the three feed delivery pipes 8 respectively, the two rollers 13 rotate and drive the three cams 33 to rotate through the central rotating shaft 18, the variable radius of the cams 33 enables the discharging mechanism to act and release the seeds, the seeds slide down to the ground along the feed delivery pipes 8, the two rollers 13 rotate for one circle to release the seeds, the distance between the seeds is the outer circumference of the rollers 13, the feed delivery pipes 8 on two sides can slide in the main sliding grooves 26 of the fixed cross rods 25 through the sliding blocks 22 to be close to or far away from the feed delivery pipes 8 at the middle positions, the transverse distance adjustment is realized, the reel 20 is rotated, one ends of the arc spokes 14 are respectively pulled by the plurality of pulling ropes 17 and are close to the reel 20, the arc spokes 14 are respectively rotated around the corresponding fixed shafts 15 and the other ends are far away from the reel 20, and further the outer circumference of the rollers 13 is changed, the longitudinal adjustment of the distance is realized.

In this embodiment, the discharging mechanism includes a second fixed block 7, the second fixed block 7 is provided with a first avoiding hole and a first chute, and is fixedly installed on the feeding pipe 8, the first avoiding hole is matched with the pipe hole of the feeding pipe 8, a first sliding plate 24 provided with a round hole 31 is slidably installed in the first chute, the round hole 31 is matched with the corresponding pipe hole, the bottom side of the first sliding plate 24 is fixedly installed with a T-shaped cylinder 34, a spring 23 is sleeved on the T-shaped cylinder 34, the bottom side of the T-shaped cylinder 34 is matched with a cam 33, the first sliding plate 24 and the T-shaped cylinder 34 slide along the first chute on the second fixed block 7, the spring 23 makes the bottom end of the T-shaped cylinder 34 contact with the cam 33 all the time, the cam 33 makes the T-shaped cylinder 34 reciprocate along the first chute by changing the radius when rotating, when the T-shaped cylinder 34 moves to the highest point, the round hole 31 on the first sliding plate 24 is matched with the pipe hole of the feeding pipe, the pipeline of the material conveying pipe 8 is smooth, the seeds can smoothly slide through the round hole 31, when the T-shaped cylinder 34 is not at the highest point, the first sliding plate 24 blocks the material conveying pipe 8, and the seeds stop sliding.

In this embodiment, the top sides of the first sliding plates 24 are fixedly provided with second studs 36, the second studs 36 are screwed with adjusting nuts 35, the bottom sides of the adjusting nuts 35 are matched with the top sides of the corresponding second fixing blocks 7, and the distance from the bottom sides of the adjusting nuts to the first sliding plates 24 can be adjusted by rotating the adjusting nuts 35, so that the distance between the T-shaped cylinders 34 and the cams 33 can be adjusted, and finally, the opening size of the channel formed by the first sliding plates 24 and the conveying pipeline 8 can be controlled, so as to adapt to the sowing of seeds with different sizes.

In the embodiment, a first stud 27 is fixedly installed on the top side of the feed delivery pipe 8 at the middle position, two distance adjusting cross arms 9 are sequentially sleeved and installed on the first stud 27, the two distance adjusting cross arms 9 are arranged in a cross manner, two long waist holes 29 are respectively formed on one side of each distance adjusting cross arm 9, two fixed columns 10 are correspondingly and fixedly installed on the top sides of the two feed delivery pipes 8 at the two side positions, the four fixed columns 10 are respectively installed in the four corresponding long waist holes 29, the four fixed columns 10 slide in the corresponding long waist holes 29, three rows of material conveying pipes 8 are used for sowing simultaneously, sowing efficiency is improved, the two distance adjusting cross arms 9 rotate on the first studs 27, included angles between the two distance adjusting cross arms 9 are adjusted, the material conveying pipes 8 on two sides slide in the main sliding grooves 26 along with the sliding blocks 22, equidistant transverse distance adjustment is carried out on the material conveying pipes 8 on two sides, and transverse sowing distances of three rows of seeds are adjusted.

In this embodiment, the first stud 27 is screwed with the lock nut 28, the bottom side of the lock nut 28 is adapted to the top side of the corresponding distance adjusting cross arm 9, and the lock nut 28 is rotated on the first stud 27 to make the bottom side of the lock nut 28 close to or far away from the top side of the distance adjusting cross arm 9, so as to lock and release the two distance adjusting cross arms 9, and facilitate adjustment.

In this embodiment, third fixing blocks 32 are fixedly mounted on the three feeding pipes 8 at positions on the top side of the discharging mechanism, second avoiding holes and second sliding grooves are formed in the third fixing blocks 32, the third avoiding holes are respectively matched with pipe holes of the corresponding feeding pipes 8, inserting plates 6 are slidably mounted in the third sliding grooves, the three inserting plates 6 are respectively matched with the pipe holes of the corresponding feeding pipes 8, the inserting plates 6 can be inserted into and pulled out of the third fixing blocks 32 by arranging the inserting plates 6, the three feeding pipes 8 are respectively blocked, single-row or multi-row seeding is selected, and the seeding machine can stop seeding when the seeding machine moves in a non-seeding area.

In this embodiment, the bottom of three conveying pipeline 8 all cup joints and installs buckling pipe 11, one side fixed mounting who is close to hopper 4 on the bed frame 1 has traction lever 2, the bottom side fixed mounting of bed frame 1 has two arc support bars 12, buckling pipe 11 is the pipeline of a bendable design among the prior art, like corrugated metal pipe, through buckling to buckling pipe 11 and carrying out certain angle, with the height on adjustment buckling pipe 11 and ground, be convenient for accurate seeding, can connect power device such as tractor through traction lever 2, two arc support bars 12 play the effect of supporting the protection, can prevent that buckling pipe 11's bottom from colliding ground, cause the jamming.

In this embodiment, the spline runner 19 is fixedly mounted on one side of each of the two reels 20, the two spline runners 19 are coaxial with the two reels 20, the reels 20 are convenient to operate and rotate through the spline runners 19, and the spline structure of the spline runners 19 can increase friction force, so that the grip is convenient and the operation slip is prevented.

In this embodiment, one side of two gyro wheels 13 all is equipped with a plurality of torsional springs 16, and the one end of a plurality of torsional springs 16 is all rotated and is installed on the lateral wall that corresponds gyro wheel 13, and the other end rotates respectively and installs on the lateral wall of a plurality of arc spokes 14 that correspond, and a plurality of torsional springs 16 make a plurality of arc spokes 14 rotate along fixed axle 15 through torsion, and the one end that is close to reel 20 is in the state of removing to keeping away from reel 20 one side all the time, makes a plurality of haulage ropes 17 tighten.

In this embodiment, one side intercommunication of hopper 4 has four-way pipe 21, the one end intercommunication that four-way pipe 21 is located intermediate position department is on the conveying pipeline 8 that is located the middle part position, both ends all cup joint in addition and install L shape connecting pipe 5, the one end of two L shape connecting pipes 5 communicates respectively on the conveying pipeline 8 that corresponds, when the conveying pipeline 8 that is located both sides and the conveying pipeline 8 interval adjustment that is located the intermediate position, can make four-way pipe 21 and the conveying pipeline 8 of both sides be connected smoothly through two L shape connecting pipes 5, guarantee that the pipeline is unblocked, be convenient for the seed landing.

When the seed feeder is used, seeds stored in the hopper 4 respectively enter the three material conveying pipes 8, the two rollers 13 rotate and drive the three cams 33 to rotate through the central rotating shaft 18, the variable radius of the cams 33 enables the discharging mechanism to act and release the seeds, the seeds slide to the ground along the material conveying pipes 8 to realize that the two rollers 13 rotate for one circle to release the seeds, the distance between the seeds is the outer circumferential length of the rollers 13, the material conveying pipes 8 on two sides can slide in the main sliding grooves 26 of the fixed cross rods 25 through the sliding blocks 22 to realize that the material conveying pipes 8 on the middle positions are close to or far away from each other to realize that the distance is transversely adjusted, the reel 20 is rotated, one ends of a plurality of arc-shaped spokes 14 are respectively pulled by a plurality of pulling ropes 17 and are close to the reel 20, the arc-shaped spokes 14 are respectively rotated around the corresponding fixed shafts 15, the other ends of the arc-, the longitudinal adjustment of the distance is realized.

Through the arrangement of the first sliding plate 24, the T-shaped cylinder 34 slides along the first chute on the second fixed block 7, the spring 23 enables the bottom end of the T-shaped cylinder 34 to be always in contact with the cam 33, the cam 33 enables the T-shaped cylinder 34 to do reciprocating motion along the first chute through radius changing when rotating, when the T-shaped cylinder 34 moves to the highest point, the round hole 31 on the first sliding plate 24 is overlapped with the pipe orifice of the feed delivery pipe 8, the pipeline of the feed delivery pipe 8 is smooth, seeds can smoothly slide through the round hole 31, when the T-shaped cylinder 34 is not at the highest point, the feed delivery pipe 8 is blocked by the first sliding plate 24, the seeds stop sliding, the distance from the bottom side of the nut to the first sliding plate 24 can be adjusted through rotating the nut 35, so as to adjust the distance between the T-shaped cylinder 34 and the cam 33, finally control the opening size of a channel formed by the first sliding plate 24 and the feed delivery pipe 8, three rows are sowed simultaneously through three conveying pipelines 8, the included angle between two adjustable pitch xarm 9 is adjusted in order to adjust the horizontal sowing interval of three rows of seeds, through setting up picture peg 6, can plug picture peg 6 on third fixed block 32, and then block three conveying pipelines 8 respectively, realize selecting single row or multirow seeding, can make the seeder stop the seeding when the non-seeding region removes simultaneously, a plurality of torsional springs 16 make a plurality of arc spokes 14 rotate along fixed axle 15 through torsion, and the one end that is close to reel 20 is in the state of removing to keeping away from reel 20 one side all the time, make a plurality of haulage rope 17 tight, can make the conveying pipelines 8 of four-way pipe 21 and both sides be connected smoothly through two L shape connecting pipes 5, guarantee that the pipeline is unblocked, be convenient for the seed landing.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides an automatic seeder with adjustable seeding distance, includes bed frame (1), its characterized in that: the top side of the base frame (1) is fixedly provided with a hopper (4) through a support frame (3), the top side of the base frame (1) is fixedly provided with two fixed cross rods (25), the two fixed cross rods (25) are parallel to each other and are positioned at different heights, main chutes (26) are formed in the top sides of the two fixed cross rods (25), the top sides of the two fixed cross rods (25) are provided with three conveying pipes (8), the conveying pipes (8) positioned at the middle positions are fixedly arranged on the two fixed cross rods (25) through two first fixed blocks (30) respectively, the conveying pipes (8) positioned at the two side positions are slidably arranged in the two main chutes (26) through two sliders (22), the three conveying pipes (8) are provided with discharging mechanisms, the bottom side of the base frame (1) is rotatably provided with two idler wheels (13) through a central rotating shaft (18), the central rotating shaft (18) is sleeved with three cams (33) respectively matched with the three discharging mechanisms, two one side of gyro wheel (13) all rotates through a plurality of fixed axles (15) and installs a plurality of arc spokes (14), the both ends of center pivot (18) are located two gyro wheel (13) position department all cup joints and installs reel (20), and is a plurality of the one end of arc spoke (14) all passes through haulage rope (17) and evenly connects on reel (20).

2. The automatic sowing machine with adjustable sowing distance according to claim 1, characterized in that: drop feed mechanism includes second fixed block (7), all seted up first dodge hole and first spout and fixed mounting on second fixed block (7) on conveying pipeline (8), first dodge the hole with the tube hole looks adaptation of conveying pipeline (8), slidable mounting has first slide (24) of seting up round hole (31) in the first spout, round hole (31) and corresponding tube hole looks adaptation, the bottom side fixed mounting of first slide (24) has T shape cylinder (34), cup joint on T shape cylinder (34) and install spring (23), the bottom side of T shape cylinder (34) with cam (33) looks adaptation.

3. The automatic sowing machine with adjustable sowing distance according to claim 2, characterized in that: second studs (36) are fixedly mounted on the top sides of the first sliding plates (24), adjusting nuts (35) are screwed on the second studs (36), and the bottom sides of the adjusting nuts (35) are matched with the top sides of the corresponding second fixing blocks (7).

4. The automatic sowing machine with adjustable sowing distance according to claim 1, characterized in that: the top side of the conveying pipe (8) located at the middle position is fixedly provided with a first stud (27), the first stud (27) is sequentially sleeved with two distance adjusting cross arms (9), the two distance adjusting cross arms (9) are arranged in a crossed mode, one side of each distance adjusting cross arm is provided with two long waist holes (29), the top sides of the two conveying pipes (8) located at the positions of the two sides are correspondingly and fixedly provided with two fixing columns (10), and the four fixing columns (10) are respectively installed in the four corresponding long waist holes (29).

5. The automatic sowing machine with adjustable sowing distance according to claim 4, characterized in that: and a locking nut (28) is screwed on the first stud (27), and the bottom side of the locking nut (28) is matched with the top side of the corresponding distance adjusting cross arm (9).

6. The automatic sowing machine with adjustable sowing distance according to claim 1, characterized in that: it is three lie in on conveying pipeline (8) the equal fixed mounting in blowing mechanism's top side position department has third fixed block (32), and is three the second has all been seted up on third fixed block (32) and has been dodged hole and second spout, and is three the second dodged the hole respectively with corresponding the tube hole looks adaptation of conveying pipeline (8), it is three equal slidable mounting has picture peg (6), three in the second spout picture peg (6) respectively with the tube hole looks adaptation that corresponds conveying pipeline (8).

7. The automatic sowing machine with adjustable sowing distance according to claim 1, characterized in that: it is three the bottom of conveying pipeline (8) all cup joints and installs buckling pipe (11), be close to on bed frame (1) one side fixed mounting of hopper (4) has traction lever (2), the bottom side fixed mounting of bed frame (1) has two arc support bars (12).

8. The automatic sowing machine with adjustable sowing distance according to claim 1, characterized in that: two equal fixed mounting in one side of reel (20) has tooth runner (19), two tooth runner (19) all with two reel (20) are coaxial.

9. The automatic sowing machine with adjustable sowing distance according to claim 1, characterized in that: two one side of gyro wheel (13) all is equipped with a plurality of torsional springs (16), and is a plurality of the one end of torsional spring (16) is all rotated and is installed and is corresponded on the lateral wall of gyro wheel (13), and the other end rotates respectively and installs a plurality of that correspond on the lateral wall of arc spoke (14).

10. The automatic sowing machine with adjustable sowing distance according to claim 1, characterized in that: one side intercommunication of hopper (4) has four-way pipe (21), the one end intercommunication that four-way pipe (21) are located intermediate position department is on the conveying pipeline (8) that are located the middle part position, and both ends all cup joint in addition and install L shape connecting pipe (5), and the one end of two L shape connecting pipes (5) communicates respectively on corresponding conveying pipeline (8).

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