CN217509399U - Combined type chinese yam rotary tillage seeder - Google Patents

Abstract

The utility model relates to the technical field of agricultural machinery, a combined type chinese yam rotary tillage seeder is proposed, including frame and seed metering mechanism, seed metering mechanism includes seed metering box, sprocket, chain, bearing and a plurality of seed protection angle, and seed metering box sets up in the frame and has import and export, and the sprocket is at least two, and sprocket and bearing all rotate the setting in seed metering box, and the chain cover is established and is formed three horn shapes on sprocket and bearing, and seed protection angle sets up on the chain, adjacent seed protection forms the seed metering space between the angle. Through above-mentioned technical scheme, the inhomogeneous problem of chinese yam seeding among the prior art has been solved.

Description

Combined type chinese yam rotary tillage seeder

Technical Field

The utility model relates to the technical field of agricultural machinery, it is specific, relate to a combined type chinese yam rotary tillage seeder.

Background

With the continuous development of agricultural planting types in China, the types and varieties of crops are more and more, the large-area popularization and application of Chinese yam planting are realized, when the Chinese yam is sowed in the traditional mode, a seed ditch needs to be opened on the ground manually, seeds are placed into the seed ditch manually, then soil covering and pressing are carried out, and a large amount of labor and funds are consumed. The problems of uneven seeding, irregular seedling emergence, complex links, high operation cost and the like caused by complex manual links.

SUMMERY OF THE UTILITY MODEL

The utility model provides a combined type chinese yam rotary tillage seeder has solved the inhomogeneous problem of chinese yam seeding among the correlation technique.

The technical scheme of the utility model as follows: the utility model provides a combined type chinese yam rotary tillage seeder, includes frame and seed metering mechanism, seed metering mechanism includes seed metering box, sprocket, chain, bearing and a plurality of seed protection angle, the seed metering box sets up in the frame and have import and export, the sprocket is at least two, the sprocket with the bearing all rotates the setting and is in the seed metering box, the chain cover is established the sprocket with form three horn shapes on the bearing, seed protection angle sets up on the chain, it is adjacent form the seed metering space between the seed protection angle.

As a further technical solution, it is proposed that,

the seed metering mechanism is a plurality of, and the seed metering box just slides and sets up in the frame, the perpendicular seeder direction of advance of seed metering box sliding direction.

As a further technical solution, it is proposed that,

the seed metering mechanism still includes the seed metering support, the seed metering support is T shape, the seed metering support sets up on the seed metering box, the sprocket rotates to set up on the seed metering support, seed metering support bottom is equipped with the tight pole that rises, the tight pole lower extreme that rises has the connecting piece, the bearing rotates to set up on the connecting piece, rise tight pole with be equipped with the spring between the connecting piece, the inside cavity of seed metering support, the connecting piece is in slide in the seed metering support, still be equipped with a chain pole on the seed metering support for support the chain.

As a further technical solution, it is proposed that,

seed passing mechanism includes seed case and seed passing board, the seed case sets up in the frame just the seed case is transversal to personally submit the V-arrangement, seed passing board slides and sets up seed case lateral wall, be equipped with the seed passing area on the seed case, seed passing area advances kind of the end setting and is in seed case opening, seed passing area goes out kind of the end with the seed metering box import links to each other.

As a further technical solution, the method comprises the following steps,

a plurality of baffle plates are arranged on the seed conveying belt, and a guide space is formed between every two adjacent baffle plates.

As a further technical solution, the method comprises the following steps,

cut the mechanism including cutting case, cutter and telescopic link, cut the case setting and be in the frame just it has out the kind of a mouth to cut the case, telescopic link one end sets up cut incasement wall, the other end is equipped with the push pedal, the cutter slides and sets up cut on the case.

As a further technical solution, it is proposed that,

the ditching mechanism includes compression roller, ditching seat and shaper, the compression roller rotates to set up in the frame, the ditching seat slides and sets up in the frame, the last fixed orifices that has of ditching seat, be equipped with the ditching share on the ditching seat, evenly be equipped with the adjustment hole on the ditching share, the shaper slides and sets up on the ditching share.

As a further technical solution, it is proposed that,

earthing mechanism includes earthing suppression support, first connecting rod, second connecting rod and earthing ware, earthing suppression support sets up in the frame, first connecting rod one end articulates on the earthing suppression support, the first connecting rod other end rotates and is provided with the press wheel, first connecting rod with be equipped with first regulation pole between the earthing suppression support, the earthing ware with be connected with the second between the earthing suppression support and adjust the pole, be equipped with the spring on first regulation pole and the second regulation pole, provide the press wheel with the power that the earthing ware is close to ground, second connecting rod both ends articulate respectively earthing suppression support with on the earthing ware.

As a further technical solution, the method comprises the following steps,

the four-bar mechanism is arranged at the front end of the frame and connected with the rotary cultivator, and the drip irrigation tape laying mechanism is arranged at the rear end of the frame.

As a further technical solution, it is proposed that,

the frame is also provided with a seat, and the seat is positioned on one side of the seed sowing mechanism.

The utility model discloses a theory of operation and beneficial effect do:

in the utility model, the chain is in the shape of an inverted triangle, the inlet of the seed discharging box is positioned above the plane of the top of the inverted triangle, the discharge port is positioned at the bottom of the inverted triangle chain, Chinese yam seeds are put into the seed discharging space formed between adjacent seed protecting corners from the feed port, the chain wheel rotates to drive the chain to rotate, the seed protecting corners carry the Chinese yam seeds to move downwards along with the chain, and the Chinese yam seeds fall to the ground from the outlet when passing through the bottom of the inverted triangle;

with the continuous development of agricultural planting types in China, the types and varieties of crops are more and more, the large-area popularization and application of Chinese yam planting are realized, when the Chinese yam is sowed in the traditional mode, a seed ditch needs to be opened on the ground manually, seeds are placed into the seed ditch manually, then soil covering and pressing are carried out, and a large amount of labor and funds are consumed. The complicated manual links cause uneven and irregular seeding;

the yam seeds are conveyed to the seed ditch by the seed protection angle matched with the chain wheel and the chain, so that the manual carrying of the yam seeds is avoided, and the yam seeds are put into the dug seed ditch one by one, thereby saving a large amount of time and labor, improving the working efficiency and saving the seeding cost; the device is also provided with a gearbox for regulating and controlling the rotating speed of a transmission mechanism to control the rotating speed of a chain wheel, so that the change of the seeding quantity of Chinese yam seeds per meter is regulated, the problem of irregular manual seeding is solved, the seeding intervals under different environments are different, and the device can adapt to various seeding requirements due to the regulating function of the seeding intervals; some equipment for conveying Chinese yam seeds by using a chain wheel and a chain are also available in the market, but the equipment can only place single Chinese yam on a feeding plate on the chain, and the inverted triangular design of the chain of the seed sowing mechanism can enable the inlet of the seed sowing box to be filled with more Chinese yam seeds, so that the sowing efficiency is greatly improved; the chain is ears haplopore chain, the installation of protecting kind of angle has been convenient for, can protect more stable the installing on the chain of kind of angle, stability when having improved the transportation, still install the monitor of lou broadcasting in seed metering box exit, a whereabouts condition for monitoring chinese yam kind, chinese yam kind is not leaked down to avoid appearing, and the condition that the seeding personnel are not conscious appears, avoid doing over again, and work efficiency is improved, it is PVC plastics material or hard rubber material to protect kind of angle material, guarantee that chinese yam seed is not damaged, improve the survival rate of chinese yam seed, and then improve chinese yam output.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of the structure of the combined rotary tillage planter for Chinese yam of the present invention;

FIG. 2 is a schematic view of the seed discharging mechanism of the present invention;

FIG. 3 is a schematic view of the seed-feeding mechanism of the present invention;

FIG. 4 is a schematic view of the structure of the cone-shaped button shaper of the present invention;

FIG. 5 is a schematic view of the structure of the trowel-shaped shaper according to the present invention;

FIG. 6 is a schematic view of the structure of the ditching mechanism of the present invention;

FIG. 7 is a schematic view of the cutting mechanism of the present invention;

FIG. 8 is a schematic view of the structure of the soil covering mechanism of the present invention;

in the figure: 1. the device comprises a frame, 2, a seed discharging box, 3, a chain wheel, 4, a chain, 5, a bearing, 6, a seed protecting angle, 7, a seed discharging support, 8, a tension rod, 9, a connecting piece, 10, a branched chain rod, 11, a seed box, 12, a seed conveying plate, 13, a seed conveying belt, 14, a baffle, 15, a slitting box, 16, a cutter, 17, a telescopic rod, 18, a push plate, 19, a press roller, 20, a ditching seat, 21, a shaper, 22, a ditching share, 23, a soil covering press support, 24, a first connecting rod, 25, a second connecting rod, 26, a soil covering device, 27, a press wheel, 28, a first adjusting rod, 29, a second adjusting rod, 30, a four-bar mechanism, 31, a rotary cultivator, 32, a drip irrigation belt laying mechanism, 33 and a seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work, are related to the scope of the present invention.

As shown in fig. 1-8, this embodiment provides a combined type rotary tillage seeder for Chinese yam, including frame 1 and seed metering mechanism, seed metering mechanism includes seed metering box 2, sprocket 3, chain 4, bearing 5 and a plurality of seed protection angle 6, seed metering box 2 sets up in frame 1 and has import and export, sprocket 3 is at least two, sprocket 3 with bearing 5 all rotates the setting and is in seed metering box 2, chain 4 cover is established sprocket 3 with form the triangle-shaped on the bearing 5, seed protection angle 6 sets up on the chain 4, and is adjacent form the seed metering space between seed protection angle 6.

In the embodiment, the chain 4 is in an inverted triangle shape, the inlet of the seed discharging box 2 is positioned above the plane of the top of the inverted triangle, the discharge port is positioned at the bottom of the inverted triangle chain 4, Chinese yam seeds are put into the seed discharging space formed between the adjacent seed protecting corners 6 from the feed port, the chain wheel 3 rotates to drive the chain 4 to rotate, the seed protecting corners 6 carry the Chinese yam seeds and move downwards along with the chain 4, and when the Chinese yam seeds pass through the bottom of the inverted triangle, the Chinese yam seeds fall to the ground from the outlet;

along with the continuous development of agricultural planting species in China, the species and the varieties of crops are more and more, the large-area popularization and application of yam planting are realized, when the traditional yam is sowed, a seed ditch needs to be opened on the ground of deep rotary tillage manually, seeds are put into the seed ditch manually, then soil covering and pressing are carried out, and a large amount of labor and funds are consumed. The complicated manual links cause uneven and irregular seeding;

the yam seeds are conveyed to the seed grooves by the seed protection angle 6 matched with the chain wheel 3 and the chain 4, so that the manual carrying of the yam seeds is avoided, and the yam seeds are put into the dug seed grooves one by one, thereby saving a large amount of time and labor, improving the working efficiency and saving the seeding cost; the device is also provided with a gearbox for regulating and controlling the rotating speed of the transmission mechanism to control the rotating speed of the chain wheel 3, so that the change of the seeding quantity of the Chinese yam seeds per meter is regulated, the problem of irregular manual seeding is solved, the seeding intervals in different environments are different, and the device can adapt to various seeding requirements due to the regulating function of the seeding intervals; some equipment for transporting yam seeds by using the chain wheel 3 in cooperation with the chain 4 is also available in the market, but the equipment can only place single yam on the feeding plate on the chain 4, but the inverted triangular design of the chain 4 of the seed sowing mechanism can enable the inlet of the seed sowing box to be filled with more yam seeds, so that the sowing efficiency is greatly improved; chain 4 is ears haplopore chain 4, the installation of the angle of planting 6 of having been convenient for, can protect the more stable installation of the angle of planting 6 on chain 4, stability when the transportation has been improved, still install the monitor of leaking to broadcast in the 2 exit of seed metering box, a whereabouts condition for monitoring the chinese yam kind, avoid appearing the chinese yam kind and not leaking down, and the condition that the seeding personnel are not informed appears, avoid doing over again, improve work efficiency, it is PVC plastics material or hard rubber material to protect the angle of planting 6 materials, guarantee the chinese yam seed not damaged, improve the survival rate of chinese yam seed, and then improve chinese yam output.

Further, the method also comprises the following steps of,

the seed metering mechanism is a plurality of, and seed metering box 2 just slides and sets up in frame 1 is last, the perpendicular seeder direction of advance of 2 slip directions of seed metering box.

In this embodiment, seed metering box 2 can control and adjust, realizes the nimble change of seeding row spacing, can adapt to different seeding places, avoids seeding row spacing too dense or too thin and influence soil output, still marks the scale on frame 1, improves the precision that seed metering box 2 removed.

Further, the method also comprises the following steps of,

seed metering mechanism still includes seed metering support 7, seed metering support 7 is T shape, seed metering support 7 sets up on the seed metering box 2, sprocket 3 rotates to set up on the seed metering support 7, seed metering support 7 bottom is equipped with tight pole 8 that rises, tight pole 8 lower extreme that rises has connecting piece 9, bearing 5 rotates to set up on the connecting piece 9, tight pole 8 with be equipped with the spring between the connecting piece 9, the inside cavity of seed metering support 7, connecting piece 9 is in slide in seed metering support 7, still be equipped with branch chain pole 10 on the seed metering support 7 for support chain 4.

In the embodiment, the branched chain rod 10 is a bending rod, two ends of the branched chain rod 10 are connected to the seeding support, and form an inverted triangle with the support frame, so as to support the tensioned chain 4, prevent the chain 4 from sinking inwards under the pulling of the chain wheel 3 and the bearing 5, prevent the chain 4 from shaking continuously and further hinder the seeding, and improve the stability of the chain 4 during operation; the seeding support of installation T type on seed metering box 2, the seeding support is inside hollow, tight pole 8 and connecting piece 9 set up the spring that rises, make connecting piece 9 can drive bearing 5 reciprocate, the slide bar has on the connecting piece 9, the slide bar can slide in the seeding support, bearing 5 reciprocates can adjust the length of the vertical direction of chain 4 and the tensioning degree of chain 4, chain rod 10 can adjust the horizontal length of chain 4, when both cooperate and can make seed protection angle 6 transport the chinese yam kind, guarantee to protect seed protection angle 6 and seed metering box 2 clearance, improve the accuracy nature and the stability of seed metering mechanism.

Further, the method also comprises the following steps of,

seed passing mechanism includes seed case 11 and seed passing board 12, seed case 11 sets up in frame 1 just seed case 11 is transversal to personally submit the V-arrangement, seed passing board 12 slides and sets up seed case 11 lateral wall, be equipped with seed passing belt 13 on the seed case 11, seed passing belt 13 advances kind of the end and sets up seed case 11 opening, seed passing belt 13 play kind of the end with seed metering box 2 imports and links to each other.

In the embodiment, because the cross section of the seed box 11 is V-shaped, when the Chinese yam seeds in the seed box 11 are pushed upwards by the seed transferring plate 12 along the inoculation plate, the Chinese yam seeds cling to the side wall of the seed box 11, then enter the seed transferring belt 13, and enter the inlet of the seed discharging box 2 after being transported by the seed transferring belt 13;

the Chinese yam seeds are in a rod shape, the shape of a seed discharging space formed by adjacent seed protecting corners 6 is a rectangular groove shape, so the Chinese yam seeds need to be manually placed into the seed discharging space, the Chinese yam seeds at the bottom of the seed box 11 are jacked by the upper end of the seed transferring plate 12 to move upwards, the Chinese yam seeds conveyed to the seed transferring plate 13 all face to one direction, and the Chinese yam seeds can directly fall into the seed discharging space after entering the inlet of the seed discharging box 2, so that the manual placement of the Chinese yam seeds by personnel is avoided, the seed protecting plate is always driven by the chain 4 when the seed discharging mechanism operates, certain potential safety hazards can exist when the Chinese yam seeds are manually placed, the automation of machinery and the safety of the operators are improved by the seed transferring mechanism, the time and the labor are saved when the Chinese yam is sown, and the sowing cost is saved.

Further, the method also comprises the following steps of,

the conveying belt 13 is provided with a plurality of baffle plates 14, and a guide space is formed between every two adjacent baffle plates 14.

In the embodiment, the seeding device can vibrate all the time during operation, the Chinese yam seeds entering the seed transferring belt 13 can change the direction of the rod part under the vibration effect of the seeding device, the situation that the Chinese yam seeds are not matched with the shape of the seed discharging space when entering the inlet of the seed discharging box 2 can occur, the Chinese yam seeds are prevented from normally entering the seed discharging space, the baffle 14 is additionally arranged on the seed transferring belt 13, the Chinese yam seeds can be well controlled to be kept in a state all the time, the seed transferring belt 13 is prevented from being vibrated during vibration, secondary construction is prevented, and the stability of Chinese yam conveying is improved.

Further, the method also comprises the following steps of,

cut the mechanism including cutting case 15, cutter 16 and telescopic link 17, cut case 15 and set up in frame 1 just cut case 15 and have a kind of a mouthful, telescopic link 17 one end sets up cut 15 inner walls of case, the other end is equipped with push pedal 18, cutter 16 slides and sets up cut on the case 15.

In this embodiment, before cutting the yam seeds, the telescopic rod 17 is in a contracted state, long-strip yams are placed into the slitting box 15, then the long-strip yams are cut into the yam seeds by the cutter, the yam seeds fall into the seed box 11 from the seed outlet, then the cutter slides upwards, the telescopic rod 17 drives the push plate 18 to push the yams, so that the end parts of the long-strip yams are propped against the slitting box 15 to be cut again;

the yam cutting mechanism realizes automatic cutting of yam seeds, saves labor, and is matched with the seed transferring mechanism and the seed discharging mechanism, thereby realizing streamline of yam seed cutting, seed transferring and seed discharging, greatly improving the automation degree of yam sowing, and saving the sowing cost of yam.

Further, the method also comprises the following steps of,

the ditching mechanism comprises a press roller 19, a ditching seat 20 and a shaper 21, wherein the press roller 19 is rotatably arranged on the rack 1, the ditching seat 20 is slidably arranged on the rack 1, the ditching seat 20 is provided with a fixed hole, the ditching seat 20 is provided with a ditching share 22, the ditching share 22 is uniformly provided with adjusting holes, and the shaper 21 is slidably arranged on the ditching share 22.

In the embodiment, the press roller 19, the ditching seat 20 and the shaper 21 are sequentially arranged along the seeding motion direction, after the press roller 19 flattens the seeding surface, the ditching ploughshare 22 below the ditching seat 20 digs a seeding ditch, and then the shaper 21 shapes the digged seeding ditch to form a final seeding ditch; the ditching seat 20 is connected with the frame 1 by adopting a U-shaped wire, the ditching seat 20 is provided with a fixed hole, the ditching share 22 is uniformly provided with an adjusting hole, a pin shaft passes through the fixed hole and the adjusting hole to connect the ditching share 22 with the ditching seat 20, different adjusting holes are matched with the fixed hole to change the ditching depth of the ditching share 22, so that a ditching mechanism can ditch on different soil qualities, the pressure requirements of different soil qualities on the shaper 21 are different, the shaper 21 can slide on the ditching share 22, the shaping pressure of the shaper 21 is further adjusted, the shaper 21 can be a leveling device with two conical platforms buckled or inclined, the outlines of the shapers 21 in two forms can better press seed ditches into a V-shaped structure, the shaper 21 can be made of stainless steel, and the shaper 21 made of stainless steel can ensure the leveling and smoothness of the seed ditches; an electric granular sterilizing medicine feeder can be additionally arranged on the ditching seat 20, and medicines are scattered into the seed ditch through a ditching ploughshare 22 pipeline, so that the seed ditch dug by the ditching mechanism can better meet the growth of Chinese yam seeds, and the survival rate of Chinese yam is improved.

Further, the method also comprises the following steps of,

earthing mechanism includes earthing suppression support 23, first connecting rod 24, second connecting rod 25 and earthing device 26, earthing suppression support 23 sets up in the frame 1, first connecting rod 24 one end articulates on earthing suppression support 23, first connecting rod 24 other end is rotated and is provided with the suppression wheel 27, first connecting rod 24 with be equipped with first regulation pole 28 between the earthing suppression support 23, earthing device 26 with be connected with the second between the earthing suppression support 23 and adjust pole 29, be equipped with the spring on first regulation pole 28 and the second regulation pole 29, provide the suppression wheel 27 with the power that earthing device 26 is close to ground, second connecting rod 25 both ends articulate respectively earthing suppression support 23 with on the earthing device 26.

In this embodiment, the seed-metering support 7 is fixed to the frame 1 through the U-shaped filament and the soil-covering press support 23, after the seed-metering mechanism evenly discharges the yam seeds into the seed furrow, the soil covering device 26 can cover the yam seeds with soil, then the soil covered by the press wheel 27 behind the soil covering device 26 is compacted, the first adjusting rod 28 and the second adjusting rod 29 on the soil covering device 26 and the press wheel 27 can provide elastic force, so that the soil covering device 26 covers soil more completely, so that the press wheel 27 compacts the covered soil more smoothly, the survival rate of the yam seeds is increased, the soil covering device 26 can be two angular square scraping plates or two circular soil-covering plates, the two angular square scraping plates can conveniently scrape the soil on both sides of the seed furrow into the seed furrow, the two circular soil-covering plates can make soil covering more convenient to move forward, and prevent the soil covering device 26 from being blocked to move forward after encountering foreign matters, so that the soil covering process is more flexible.

Further, the method also comprises the following steps of,

the front end of the frame 1 is provided with a four-bar mechanism 30, the four-bar mechanism 30 is connected with a rotary cultivator 31, and the rear end of the frame 1 is provided with a drip irrigation tape laying mechanism 32.

In this embodiment, four bar linkage 30 are connected with rotary cultivator 31 and frame 1 through the round pin axle before frame 1, seeder level was advanced when four bar linkage 30 guaranteed the operation, guarantee the rise height of seeder during road transportation, still can connect rotary cultivator 31 or add the rotary cultivator 31 that has the fertilization case on four bar linkage 30, drip irrigation zone laying mechanism 32 has been installed to frame 1 rear end, be used for laying the drip irrigation zone, the time of drip irrigation zone is laid in the saving manual work, satisfy this seeding equipment once accomplish the rotary tillage, fertilize, flatten, the ditching, the plastic, the seeding, the earthing, the suppression, drip irrigation zone is spread and is leaked the broadcast monitoring link, make the seeding accurate, the mechanization degree increases, the operating efficiency improves, greatly reduced the seeding cost of present stage chinese yam.

Further, the method also comprises the following steps of,

a seat 33 is further arranged on the frame 1, and the seat 33 is positioned on one side of the seed metering mechanism.

In this embodiment, the staff sits and can monitor the cutting, transmission and the seed metering condition of chinese yam kind on seat 33, meet special circumstances and can accomplish in time discovery and handle, can not in time discover when avoiding seeding in-process machine damage or chinese yam kind seed metering to be not smooth and easy, and then influence work efficiency's the condition, still be equipped with the running-board that adopts decorative pattern steel sheet preparation under the seat 33, it is more comfortable when making things convenient for the staff to monitor running state, decorative pattern steel sheet prevents that the staff from carelessly falling down, messenger's equipment is safer.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a combined type chinese yam rotary tillage seeder, includes frame (1) and seed metering mechanism, its characterized in that, seed metering mechanism includes seed metering box (2), sprocket (3), chain (4), bearing (5) and a plurality of seed protection angle (6), seed metering box (2) set up in frame (1) and have import and export, sprocket (3) are at least two, sprocket (3) with bearing (5) all rotate the setting and are in seed metering box (2), chain (4) cover is established sprocket (3) with form the triangle-shaped on bearing (5), seed protection angle (6) set up on chain (4), adjacent form the seed metering space between seed protection angle (6).

2. A rotary tillage planter for composite yam as claimed in claim 1, wherein the planter has a plurality of planter boxes slidably mounted on the frame (1), the sliding direction of the planter boxes is perpendicular to the advancing direction of the planter.

3. The rotary tillage and seeding machine for Chinese yam of claim 1, wherein, the seed sowing mechanism also comprises a seed sowing bracket (7), the seed sowing bracket (7) is T-shaped, the seed discharging bracket (7) is arranged on the seed discharging box (2), the chain wheel (3) is rotationally arranged on the seed discharging bracket (7), the bottom end of the seeding support (7) is provided with a tension rod (8), the lower end of the tension rod (8) is provided with a connecting piece (9), the bearing (5) is rotatably arranged on the connecting piece (9), a spring is arranged between the tension rod (8) and the connecting piece (9), the seeding support (7) is hollow, the connecting piece (9) slides in the seeding support (7), the seed sowing bracket (7) is also provided with a branch chain rod (10) for supporting the chain (4).

4. The combined rotary tillage and seeding machine for Chinese yam according to claim 1, further comprising a seed passing mechanism arranged on the frame (1), wherein the seed passing mechanism comprises a seed box (11) and a seed passing plate (12), the seed box (11) is arranged on the frame (1) and the cross section of the seed box (11) is V-shaped, the seed passing plate (12) is slidably arranged on the side wall of the seed box (11), a seed passing belt (13) is arranged on the seed box (11), a seed inlet end of the seed passing belt (13) is arranged at an opening of the seed box (11), and a seed outlet end of the seed passing belt (13) is connected with an inlet of the seed discharging box (2).

5. A rotary tillage planter for yam as claimed in claim 4, wherein the belt (13) has a plurality of baffles (14), and a guide space is formed between adjacent baffles (14).

6. The combined type rotary tillage seeding machine for Chinese yam according to claim 1, further comprising a seed cutting mechanism, wherein the seed cutting mechanism comprises a cutting box (15), a cutter (16) and a telescopic rod (17), the cutting box (15) is arranged on the frame (1), the cutting box (15) is provided with a seed outlet, one end of the telescopic rod (17) is arranged on the inner wall of the cutting box (15), the other end of the telescopic rod is provided with a push plate (18), and the cutter (16) is arranged on the cutting box (15) in a sliding manner.

7. The combined rotary tillage and seeding machine for Chinese yam according to claim 1, further comprising a furrowing mechanism, wherein the furrowing mechanism comprises a press roller (19), a furrowing seat (20) and a shaper (21), the press roller (19) is rotatably arranged on the frame (1), the furrowing seat (20) is slidably arranged on the frame (1), the furrowing seat (20) is provided with a fixing hole, the furrowing seat (20) is provided with furrowing ploughshares (22), the furrowing ploughshares (22) are uniformly provided with adjusting holes, and the shaper (21) is slidably arranged on the furrowing ploughshares (22).

8. The combined rotary tillage and seeding machine for Chinese yam according to claim 1, further comprising an earthing mechanism, wherein the earthing mechanism comprises an earthing press bracket (23), a first connecting rod (24), a second connecting rod (25) and an earthing device (26), the earthing press bracket (23) is arranged on the frame (1), one end of the first connecting rod (24) is hinged on the earthing press bracket (23), the other end of the first connecting rod (24) is rotatably provided with a press wheel (27), a first adjusting rod (28) is arranged between the first connecting rod (24) and the earthing press bracket (23), a second adjusting rod (29) is connected between the earthing device (26) and the earthing press bracket (23), springs are arranged on the first adjusting rod (28) and the second adjusting rod (29) to provide the force of the press wheel (27) and the earthing device (26) close to the ground, and two ends of the second connecting rod (25) are respectively hinged on the soil covering and pressing bracket (23) and the soil coverer (26).

9. A rotary tillage planter for Chinese yam according to claim 1, wherein a four-bar linkage mechanism (30) is provided at the front end of the frame (1), the four-bar linkage mechanism (30) is connected with the rotary cultivator (31), and a drip irrigation tape laying mechanism (32) is provided at the rear end of the frame (1).

10. The rotary tillage and sowing machine for composite yams according to claim 1, wherein a seat (33) is further arranged on the rack (1), and the seat (33) is positioned on one side of the seed metering mechanism.

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