阅读说明：本技术 一种温室内马铃薯播种机 (Potato planter in greenhouse ) 是由 于英杰 王剑 吕勤 陈可凡 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种温室内马铃薯播种机,属于农业机械技术领域,所述温室内马铃薯播种机包括用于承载和驱动的行走支撑组件、用于土壤开沟的开沟器、用于在开好的种沟内施肥的施肥装置、用于在开好的种沟内落种的排种装置以及能够将种沟进行覆土压实的覆土组件,施肥装置与排种装置布置在行走支撑组件上,开沟器与覆土组件布置在行走支撑组件底部,开沟器在前覆土组件在后。本发明使用电动机作为动力源,大大降低劳动强度,提高了作业效率；能够一次性完成开沟、施肥、播种、覆土、镇压等多项作业,减少了作业次数；另外,结构简单可靠、实用性强、制造方便,易于推广实用,可以很好的与温室大棚内的作业环境相适应。(The invention discloses a potato seeder in a greenhouse, which belongs to the technical field of agricultural machinery and comprises a walking support assembly for bearing and driving, a furrow opener for ditching soil, a fertilizing device for fertilizing in a dug seed ditch, a seed discharging device for dropping seeds in the dug seed ditch and a soil covering assembly capable of covering and compacting the seed ditch, wherein the fertilizing device and the seed discharging device are arranged on the walking support assembly, the furrow opener and the soil covering assembly are arranged at the bottom of the walking support assembly, and the furrow opener is arranged behind the front soil covering assembly. The invention uses the motor as a power source, greatly reduces the labor intensity and improves the operation efficiency; the multifunctional ditching machine can complete multiple operations such as ditching, fertilizing, seeding, earthing, compacting and the like at one time, and reduces the operation times; in addition, the structure is simple and reliable, the practicability is strong, the manufacture is convenient, the popularization and the practicability are easy, and the device can be well adapted to the operation environment in the greenhouse.)

1. The utility model provides a potato planter in greenhouse which characterized in that: including being used for bearing and driven walking supporting component, a furrow opener for soil ditching, a fertilizer injection unit for fertilizeing in the kind ditch of digging, a seed metering device for falling kind in the kind ditch of digging and can carry out the earthing compaction's earthing subassembly with the kind ditch earthing, fertilizer injection unit arranges on walking supporting component with seed metering device, furrow opener and earthing subassembly are arranged in walking supporting component bottom, the furrow opener earthing subassembly in the front is back, fertilizer injection unit and seed metering device bottom blanking mouth extend to between furrow opener and the earthing subassembly.

2. The greenhouse potato planter as claimed in claim 1, wherein: the walking supporting component comprises a frame (1), a gear transmission component (7), a large gear (8), a motor (9), belt pulleys III (17), belt pulleys IV (18), walking wheels (19), a pushing handle is arranged on one side of the frame (1), the motor (9) is installed on the other side, two groups of walking wheels (19) are installed at the bottom of the frame (1), the large gear (8) and the belt pulleys IV (18) are installed on one side of the motor (9) through a rotating shaft and a support, the large gear (8) is connected with the rotating shaft of the motor (9) through the gear transmission component (7), the belt pulleys III (17) are installed on a rotating shaft of the walking wheels (19) on the lower side of the motor (9), and the belt pulleys III (17).

3. The greenhouse potato planter as claimed in claim 2, wherein: the direction control assembly (2) is installed on the rack (1), the bottom of the direction control assembly (2) is connected with the walking wheels (19), and the walking wheels (19) are controlled to steer by the direction control assembly (2).

4. The greenhouse potato planter as claimed in claim 1, wherein: the fertilizer applying device comprises a fertilizer box (3), a fertilizer distributor (4) and a fertilizer conveying pipe (14), wherein the fertilizer distributor (4) is arranged at the bottom of the fertilizer box (3), the fertilizer conveying pipe (14) is arranged at the outlet at the bottom of the fertilizer distributor (4), the fertilizer distributor (4) comprises an outer grooved pulley (41), a fertilizer distributing box (44), a fertilizer distributing tongue (45) and a fertilizer guide plate (46), the fertilizer guide plate (46) is arranged in the fertilizer distributor (4) and is just opposite to the outlet at the bottom of the fertilizer box (3), the bottom end of the fertilizer guide plate (46) is provided with the fertilizer distributing tongue (45), the upper side of the fertilizer distributing tongue (45) is provided with the outer grooved pulley (41), the outer grooved pulley (41) is movably arranged on the side wall of the fertilizer distributor (4) through a rotating shaft, a belt pulley I (11) is arranged at the outer end of the rotating shaft of the.

5. The in-greenhouse potato planter as claimed in claim 4, wherein: an inner gear retainer ring (42) and an outer retainer ring (43) are arranged on the rotating shaft and arranged on two sides of the outer grooved wheel (41) and rotate together with the outer grooved wheel (41).

6. The greenhouse potato planter as claimed in claim 1, wherein: the seed metering device comprises a seed box (5), a seed metering device (6) and a seed conveying pipe (15), the seed metering device (6) at the bottom of the seed box (5) is communicated, the seed metering device (6) comprises a seed potato cylinder (61), a seed metering disc (62), a seed discharging port (63), a seed potato cylinder base (64), a seed metering vertical shaft (65), a land wheel shaft (66), a large bevel gear (67), a small bevel gear (68), a seed potato cylinder cover (69), a seed scraping tongue (610), a seed scraping device shell (613) and a seed pushing wheel (615), the top of the seed potato cylinder (61) is provided with the seed potato cylinder cover (69), the bottom is provided with the seed potato cylinder base (64), the middle part of the seed potato cylinder base (64) is provided with the seed metering vertical shaft (65), the seed scraping device shell (613) is arranged at the top of the seed metering vertical shaft (65), the seed metering disc (62) is arranged on the seed scraping device shell (613) through a bearing, a seed metering hole, the seed scraping tongue (610) is arranged on the seed feeding side of a seed scraping device shell (613), the seed discharging side is provided with a seed pushing wheel (615), the arrangement positions of the seed scraping tongue (610) and the seed pushing wheel (615) correspond to seed discharging holes (616), a seed discharging opening (63) is arranged on a seed potato cylinder base (64) in the position corresponding to the seed pushing wheel (615), the seed discharging opening (63) is connected with a seed conveying pipe (15), a land wheel shaft (66) is arranged below the seed sowing device (6), a large bevel gear (67) is arranged at the bottom end of a seed discharging vertical shaft (65), a small bevel gear (68) is arranged on the land wheel shaft (66), the large bevel gear (67) is meshed with the small bevel gear (68), a belt pulley II (12) is arranged at the outer end of the land wheel shaft (66), and the belt pulley II (12) is.

7. The greenhouse potato planter of claim 6, wherein: the seed sowing device (6) further comprises a spring (611), an adjusting screw (612), a connecting rod fixing seat (618), a spring upright post (617) and a connecting rod (614), wherein the connecting rod fixing seat (618) is symmetrically installed on two sides of the bottom of the seed scraping device shell (613) through the adjusting screw (612), the seed scraping tongue (610) and the seed pushing wheel (615) are respectively installed in a hinged mode through the connecting rod (614) and the connecting rod fixing seat (618), the spring upright post (617) is arranged on the two connecting rods (614), the spring (611) is sleeved on the spring upright post (617), and two ends of the spring (611) are respectively fixedly connected with the seed scraping device shell (613) and the connecting rod (614).

8. The greenhouse potato planter of claim 6, wherein: the seed pushing wheel (615) is spherical in main body, is rotatably arranged at the end part of the connecting rod (614), and seed pushing rubber balls are uniformly arranged on the outer surface of the seed pushing wheel (615).

9. The greenhouse potato planter as claimed in claim 1, wherein: the earthing subassembly includes covering device (13) and press wheel (10), and covering device (13) are installed in the front, and press wheel (10) are installed in the back, and covering device (13) are two earthing wheels, are 30 degrees and mutual symmetry through the support and install in walking supporting component bottom, and press wheel (10) outward appearance is the hourglass type that the middle part is little two big.

10. The greenhouse potato planter as claimed in claim 1, wherein: the furrow opener comprises a furrow opener main body (16), the furrow opener main body (16) is arranged at the bottom of the walking supporting component through a furrow opener support (161), the back of the furrow opener main body (16) is provided with two guide chutes (162), and outlets at the bottoms of the fertilizing device and the seed sowing device are respectively communicated with one guide chute (162).

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a potato seeder in a greenhouse.

Background

At present, most of potato planting machines in China are large-scale machines, are only suitable for planting in large lands and cannot meet the planting requirement in a greenhouse. Therefore, the potatoes are planted in most of greenhouses in a manual mode, the labor intensity is high, the problems of irregular plant spacing and row spacing and nonuniform sowing depth are easily caused, and the sowing efficiency is low, the quality is poor, and the emergence rate and the yield are seriously influenced. The existing domestic small potato seeders have serious miss-seeding phenomena during seeding, and the adjustment of the row spacing and the plant spacing is very limited, so that the agricultural range applicable to the seeders is greatly limited.

Disclosure of Invention

Aiming at the problems in the background technology, the invention provides the potato seeder in the greenhouse, which is powered by a motor, greatly reduces the labor intensity, can complete multiple operations such as ditching, fertilizing, seeding, earthing, pressing and the like at one time, and reduces the operation times. In addition, compact structure is reasonable, and the practicality is strong, can realize self-propelled seeding, can be fine and the interior operation environment of warmhouse booth suits.

In order to achieve the purpose, the invention adopts the following technical scheme: the potato planter in the greenhouse comprises a walking supporting assembly used for bearing and driving, a furrow opener used for soil furrowing, a fertilizing device used for fertilizing in a well-opened seed ditch, a seed metering device used for seed falling in the well-opened seed ditch and a soil covering assembly capable of performing soil covering compaction on the seed ditch, wherein the fertilizing device and the seed metering device are arranged on the walking supporting assembly, the furrow opener and the soil covering assembly are arranged at the bottom of the walking supporting assembly, the furrow opener is arranged behind the soil covering assembly in front, and a blanking port at the bottom of the fertilizing device and the seed metering device extends to a position between the furrow opener and the soil covering assembly.

Preferably, the walking support component comprises a rack, a gear transmission component, a gearwheel, a motor, a belt pulley III, a belt pulley IV and walking wheels, wherein a pushing handle is arranged on one side of the rack, the motor is arranged on the other side of the rack, two groups of walking wheels are arranged at the bottom of the rack, the gearwheel and the belt pulley IV are arranged on one side of the motor through a rotating shaft and a support, the gearwheel is connected with a rotating shaft of the motor through the gear transmission component, the belt pulley III is arranged on a rotating shaft of the walking wheels on the lower side of the.

As preferred, install the direction control subassembly in the frame, the direction control subassembly bottom is connected with the walking wheel, and the walking wheel adopts the direction control subassembly control to turn to.

Preferably, the fertilizer applying device comprises a fertilizer box, a fertilizer distributor and a fertilizer conveying pipe, the fertilizer distributor is arranged at the bottom of the fertilizer box, the fertilizer conveying pipe is arranged at the outlet at the bottom of the fertilizer distributor, the fertilizer distributor comprises an outer grooved pulley, the fertilizer distributor, a fertilizer discharging tongue and a fertilizer guide plate, the fertilizer guide plate is arranged in the fertilizer distributor and is right opposite to the outlet at the bottom of the fertilizer box, the fertilizer guide plate is arranged at the bottom of the fertilizer guide plate, the fertilizer discharging tongue is arranged on the upper side of the fertilizer discharging tongue, the outer grooved pulley is movably arranged on the side wall of the fertilizer distributor through a rotating shaft, a belt pulley I is arranged at the outer end of the rotating shaft.

Preferably, the two sides of the outer grooved wheel are provided with an inner gear retainer ring and an outer retainer ring on the rotating shaft, and the inner gear retainer ring and the outer retainer ring rotate together with the outer grooved wheel.

Preferably, the seed metering device comprises a seed box, a seed metering device and a seed conveying pipe, the seed metering device is communicated with the bottom of the seed box, the seed metering device comprises a seed potato cylinder, a seed metering disc, a seed discharging port, a seed potato cylinder base, a seed metering vertical shaft, a land wheel shaft, a large bevel gear, a small bevel gear, a seed potato cylinder cover, a seed scraping tongue, a seed scraping device shell and a seed pushing wheel, the top of the seed potato cylinder is provided with the seed potato cylinder cover, the bottom of the seed potato cylinder is provided with the seed potato cylinder base, the seed metering vertical shaft is arranged in the middle of the seed potato cylinder base, the seed scraping device shell is arranged at the top of the seed metering vertical shaft, the seed metering disc is arranged on the seed metering vertical shaft at the lower side of the seed scraping device shell through a bearing, the seed metering disc is provided with a seed metering hole, the seed scraping tongue is arranged at the seed feeding side of the seed scraping device shell, the seed discharging tongue and the seed, a land wheel shaft is arranged below the seed sowing device, a large bevel gear is arranged at the bottom end of a seed sowing vertical shaft, a small bevel gear is arranged on the land wheel shaft, the large bevel gear is meshed with the small bevel gear, a belt pulley II is arranged at the outer end of the land wheel shaft, and the belt pulley II is driven by a motor.

Preferably, the seed sowing device further comprises a spring, an adjusting screw, a connecting rod fixing seat, a spring upright post and a connecting rod, wherein the connecting rod fixing seat is symmetrically installed on two sides of the bottom of the seed scraping device shell through the adjusting screw, the seed scraping tongue and the seed pushing wheel are hinged to the connecting rod fixing seat through the connecting rod, the spring upright post is arranged on each of the two connecting rods, the spring is sleeved on the spring upright post, and two ends of the spring are fixedly connected with the seed scraping device shell and the connecting rod respectively.

Preferably, the seed pushing wheel is mainly spherical, is rotatably arranged at the end part of the connecting rod, and is uniformly provided with seed pushing rubber balls on the outer surface.

Preferably, the earthing subassembly includes covering device and press wheel, and the covering device is installed in the front, and the press wheel is installed at the back, and the covering device is two earthing wheels, is 30 degrees and mutual symmetry through the support and installs in walking supporting component bottom, and the press wheel outward appearance is the hourglass type that the middle part is little two big.

Preferably, the furrow opener comprises a furrow opener main body, the furrow opener main body is arranged at the bottom of the walking supporting component through a furrow opener support, the back of the furrow opener main body is provided with two guide chutes, and outlets at the bottoms of the fertilizing device and the seed discharging device are respectively communicated with one guide chute.

The invention has the beneficial effects that:

the invention uses the motor as a power source, greatly reduces the labor intensity and improves the operation efficiency; the multifunctional ditching machine can complete multiple operations such as ditching, fertilizing, seeding, earthing, compacting and the like at one time, and reduces the operation times; in addition, the structure is simple and reliable, the practicability is strong, the manufacture is convenient, the popularization and the practicability are easy, and the device can be well adapted to the operation environment in the greenhouse.

Drawings

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

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

FIG. 3 is a schematic view of FIG. 1 in another orientation;

FIG. 4 is a view of the seed meter configuration of the present invention;

FIG. 5 is a block diagram of a seed scraper of the present invention;

FIG. 6 is a schematic view of the structure of the fertilizer apparatus of the present invention;

FIG. 7 is a perspective view of a shank of the present invention;

FIG. 8 is a schematic view of the installation of the furrow opener of the present invention;

the reference numbers in the figures: the device comprises a rack 1, a direction control rod 2, a fertilizer box 3, a fertilizer distributor 4, a seed box 5, a seed sowing device 6, a pinion 7, a gearwheel 8, a motor 9, a press wheel 10, a belt pulley I11, a belt pulley II 12, a soil covering device 13, a fertilizer conveying pipe 14, a seed conveying pipe 15, a furrow opener 16, a furrow opener support 161, a guide chute 162, a belt pulley III 17, a belt pulley IV 18 and a travelling wheel 19; the potato seed sowing device comprises an outer grooved wheel 41, an inner gear retainer ring 42, an outer retainer ring 43, a fertilizer discharging box 44, a fertilizer discharging tongue 45, a potato seed cylinder 61, a seed discharging disc 62, a seed discharging port 63, a potato seed cylinder base 64, a seed discharging vertical shaft 65, a land axle 66, a large bevel gear 67, a small bevel gear 68, a potato seed cylinder cover 69, a seed scraping tongue 610, a spring 611, an adjusting screw 612, a seed scraping shell 613, a connecting rod 614, a seed pushing wheel 615, a seed discharging type hole 616, a spring upright 617 and a connecting rod fixing seat 618.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.

As shown in fig. 1-7, the potato planter in the greenhouse comprises a walking support assembly for bearing and driving, a furrow opener for ditching soil, a fertilizing device for fertilizing in the opened seed furrow, a seed discharging device for dropping seeds in the opened seed furrow and a soil covering assembly capable of covering and compacting the seed furrow, wherein the fertilizing device and the seed discharging device are arranged on the walking support assembly, the furrow opener and the soil covering assembly are arranged at the bottom of the walking support assembly, the soil covering assembly is arranged at the front of the furrow opener, and a material dropping port at the bottom of the fertilizing device and the seed discharging device extends to a position between the furrow opener and the soil covering assembly.

The walking supporting component comprises a frame 1, a gear transmission component 7, a large gear 8, a motor 9, a belt pulley III 17, a belt pulley IV 18 and a walking wheel 19, wherein a pushing handle is arranged on one side of the frame 1, the motor 9 is installed on the other side, two groups of walking wheels 19 are installed on the bottom of the frame 1, the large gear 8 and the belt pulley IV 18 are installed on one side of the motor 9 through a rotating shaft and a support, the large gear 8 is connected with the rotating shaft of the motor 9 through the gear transmission component 7, the belt pulley III 17 is installed on the rotating shaft of the walking wheel 19 on the lower side of the motor.

Install direction control assembly 2 on the frame 1, direction control assembly 2 bottom is connected with walking wheel 19, and walking wheel 19 adopts direction control assembly 2 control to turn to, is convenient for control seeder operation direction.

Fertilizing device includes the can fertilizer 3, the can fertilizer 4, defeated fertile pipe 14, 3 bottoms of can fertilizer set up can fertilizer 4, 4 bottoms of can fertilizer export set up defeated fertile pipe 14, can fertilizer 4 includes outer sheave 41, can fertilizer 44, the tongue 45 of fertilizing, lead fertile board 46, just set up the tongue 46 of leading to the export of 3 bottoms of can fertilizer in can fertilizer 4, lead fertile board 46 bottom and set up the tongue 45 of fertilizing, tongue 45 upsides of fertilizing is provided with outer sheave 41, outer sheave 41 is through pivot movable mounting on 4 lateral walls of can fertilizer, install belt pulley I11 on the 41 pivot outer end of outer sheave, belt pulley I11 adopts motor 9 to drive. An inner gear retainer ring 42 and an outer retainer ring 43 are arranged on the rotating shaft at two sides of the outer grooved wheel 41 and rotate together with the outer grooved wheel 41. In the sowing process, fertilizer particles in the fertilizer box 3 fall into the fertilizer discharging tongue 45 along the fertilizer guide plate 46, the belt pulley I11 drives the outer grooved pulley 41, the gear retainer ring 42 and the outer retainer ring 43 to rotate anticlockwise under the driving of the motor 9, fertilizer in the fertilizer discharging tongue 45 is thrown out of the range of the fertilizer discharging tongue 45, falls into the bottom of the fertilizer box 44 and is concentrated to the fertilizer conveying pipe 14, and the fertilizer is discharged along with the fertilizer conveying pipe 14.

The seed metering device comprises a seed box 5, a seed metering device 6 and a seed delivery pipe 15, the seed metering device 6 at the bottom of the seed box 5 is communicated, the seed metering device 6 comprises a seed potato cylinder 61, a seed metering disc 62, a seed discharging port 63, a seed potato cylinder base 64, a seed metering vertical shaft 65, a land wheel shaft 66, a large bevel gear 67, a small bevel gear 68, a seed potato cylinder cover 69, a seed scraping tongue 610, a seed scraping shell 613 and a seed pushing shaft 615, the top of the seed potato cylinder 61 is arranged on the seed potato cylinder cover 69, the bottom is provided with the seed potato cylinder base 64, the middle part of the seed potato cylinder base 64 is provided with the seed metering vertical shaft 65, a seed scraping shell 613 is arranged at the top of the seed metering vertical shaft 65, the seed metering disc 62 is arranged on the seed metering vertical shaft 65 at the lower side of the seed scraping shell 613 through a bearing, the seed metering hole 616 is arranged on the seed metering disc 62, the seed feeding side of the seed scraping shell 613 is provided with the seed pushing shaft, a seed sowing port 63 is arranged on the potato cylinder base 64 at a position corresponding to the seed pushing wheel 615, the seed sowing port 63 is connected with the seed conveying pipe 15, a land wheel shaft 66 is arranged below the seed sowing device 6, a large bevel gear 67 is arranged at the bottom end of a seed sowing vertical shaft 65, a small bevel gear 68 is arranged on the land wheel shaft 66, the large bevel gear 67 is meshed with the small bevel gear 68, a belt pulley II 12 is arranged at the outer end of the land wheel shaft 66, and the belt pulley II 12 is driven by a motor 9. Namely, the motor 9 drives the land wheel shaft 66 to rotate through the belt pulley II 12, and the small bevel gear 68 is meshed with the large bevel gear 67 to drive the seed discharging disc 62 to rotate around the seed discharging vertical shaft 65. During sowing, seeds in the seed box 5 fall on the seed discharging plate 62 at the side of the seed scraping tongue 610 to be accumulated, when the seed discharging holes 616 on the seed discharging plate 62 rotate to the side of the seed scraping tongue 610, the seeds continuously move along with the seed discharging holes 616 from the self-weight filling seed discharging holes 616, the seed scraping tongue 610 scrapes redundant seeds at the hole opening of the seed discharging holes 616, then when the seed discharging holes 616 rotate to the upper part of the seed discharging opening 63, the seeds in the seed discharging holes 616 fall into the seed conveying pipe 15 through self-weight, and finally the seeds are sent out through the seed conveying pipe 15. When the top opening of the seed discharging hole 616 is blocked due to the accumulation of seeds, the seed pushing wheel 615 can assist in applying force to loosen and remove the seeds at the opening of the seed discharging hole 616 when the seed discharging hole 616 passes through the seed pushing wheel 615, thereby ensuring the smooth falling of the seeds.

The seed sowing device 6 further comprises a spring 611, an adjusting screw 612, connecting rod fixing seats 618, spring columns 617 and connecting rods 614, the connecting rod fixing seats 618 are symmetrically installed on two sides of the bottom of the seed scraping device shell 613 through the adjusting screw 612 respectively, the seed scraping tongues 610 and the seed pushing wheels 615 are hinged with the connecting rod fixing seats 618 through the connecting rods 614 respectively, the spring columns 617 are arranged on the two connecting rods 614, the spring 611 is sleeved on the spring columns 617, and two ends of the spring 611 are fixedly connected with the seed scraping device shell 613 and the connecting rods 614 respectively. When the seed scraping tongue 610 and the seed pushing wheel 615 are in contact with the seeds, if the blockage is serious, the seed scraping tongue 610 and the seed pushing wheel 615 compress the spring 611 to rise, so that flexible contact is realized, and the seeds are prevented from being scratched and damaged.

The seed pushing wheel 615 is mainly spherical, is rotatably arranged at the end part of the connecting rod 614, and seed pushing rubber balls are uniformly arranged on the outer surface of the seed pushing wheel 615. The seed pushing rubber balls protruding outwards assist in seed pushing, the blocking condition generated during operation is reduced, meanwhile, flexible contact with the seeds is achieved, damage to the seeds is reduced, and meanwhile, seed falling is guaranteed to be smooth.

The furrow opener includes furrow opener main part 16, furrow opener main part 16 passes through furrow opener support 161 and installs in walking supporting component bottom for excavate the kind ditch, furrow opener main part 16 back sets up two baffle boxes 162, fertilizer injection unit's fertilizer delivery pipe 14 and seed metering device's seed delivery pipe 15 respectively with a baffle box 162 intercommunication, make fertilizer delivery pipe 14 and seed delivery pipe 15 exhaust fertilizer and seed can fall into the kind ditch along with the baffle box 162 respectively in, the blanking makes fertilization and kind position accurate.

The earthing subassembly includes covering device 13 and press wheel 10, and covering device 13 installs in the front, and press wheel 10 installs in the back, is 30 degrees and mutual symmetry through the support and installs in walking supporting component bottom, and press wheel 10 outward appearance is the big hourglass type in little two in the middle part, and relative direction of motion is 45 degrees angle installations. The covering device 13 can push the seed ditch with seed ditch both sides soil, covers seed and fertilizer, then is the soil compaction that will cover by the press wheel 10, and the press wheel 10 is hourglass type, can be with the compaction of seed ditch in both sides soil and ensure that the seed ditch middle part position of falling kind is comparatively loose, does benefit to the seed growth.

The working process of the invention is as follows: when planting the potato in the greenhouse, according to the agronomic requirement of potato seeding, the potato kind potato needs the depth of burying unanimously to the interval between the kind potato keeps unanimous as far as possible, keeps the stable functioning speed of seeder, ensures simultaneously that the furrow opener is fixed, can not take place the activity. Fertilizer and seeds are respectively added into the fertilizer box 3 and the seed box 5 manually, the motor 9 drives the travelling wheels 19 to rotate so that the seeder moves forward, and the furrow opener 16 marks out seed furrows in a planting area. Meanwhile, fertilizer enters the seed scraping tongue 610 of the fertilizer distributor 4 by means of self weight, is discharged into the fertilizer conveying pipe 14 under the rotation of the outer grooved wheel 41, and finally enters the seed ditch along the furrow opener 16 to finish fertilizer application. Meanwhile, the seeds in the seed box 5 are filled in the seed discharging holes 616 at the edge of the seed discharging plate 62 by the dead weight and the shaking of the seeder, rotate to the seed scraping tongue 610 part along with the seed discharging plate 62, scrape off the redundant seeds, when the seeds remained in the seed box rotate to the seed dropping port 63, leave the seed holes under the action of the self gravity of the seeds and the seed pushing wheel 615, and fall into the seed ditch along the seed conveying pipe 15 and the furrow opener 16, thus completing seed dropping. Finally, the seed furrow is covered with soil by a soil covering device 13, and compacted by a press wheel 10 to complete seeding.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.