CN218735914U - Terrain-imitated ditching device, seeder structure and soybean and corn compound seeder - Google Patents

Abstract

The utility model discloses an imitative topography ditching device, including the dead lever, set firmly support ring and support frame on the dead lever, the bull stick is installed to the support ring internal rotation, and the one end of fixed ditching handle on the bull stick, the furrow opener is installed to the other end of ditching handle, and the activity is equipped with the gag lever post between support frame and the ditching handle, and the cover is equipped with spacing pressure spring on the gag lever post. The utility model provides a technical problem provide an imitative topography ditching device and seeder structure and compound seeder of soybean maize that tilling depth is unchangeable, can imitative topography seeding and fertilize.

Description

Terrain-imitated ditching device, seeder structure and soybean and corn compound seeder

Technical Field

The utility model relates to the technical field of agricultural machinery, especially, relate to an imitative topography ditching device and seeder structure and compound seeder of soybean maize.

Background

The furrow opener of the existing seeder is fixed in position, does not have the function of imitating the terrain, and is still suitable for the land in plain areas such as northeast and the like. However, in hilly areas such as Chongqing, because the field working environment in the hilly areas is poor and the land height is uneven, if the position of the furrow opener is fixed, the tilling depth can change along with the fluctuation of the land, the problem of inconsistent seeding depth can occur, the seedling emergence time is different, and the growth and the yield of crops are influenced. Meanwhile, the problem of inconsistent fertilization depth exists during fertilization, so that accurate fertilization cannot be realized.

Therefore, those skilled in the art are devoted to develop a landform-imitating furrowing device and a seeder structure which have the same plowing depth and can sow and fertilize in a landform, and a soybean-corn compound seeder.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of prior art, the utility model discloses an imitative topography ditching device and seeder structure and compound seeder of soybean maize, the technical problem that solve provide one kind to plough depth unchangeable, can imitate the imitative topography ditching device and seeder structure and compound seeder of soybean maize of topography seeding and fertilization.

In order to realize the above purpose, the utility model provides an imitative topography ditching device, including the dead lever, support ring and support frame have set firmly on the dead lever, the bull stick is installed to the support ring internal rotation, the one end of fixed ditching handle on the bull stick, the furrow opener is installed to the other end of ditching handle, the activity is equipped with the gag lever post between support frame and the ditching handle, the cover is equipped with spacing pressure spring on the gag lever post.

Preferably, the end of the support frame, which is far away from the ditching handle, is located on the upper side of the fixing rod, the support frame is provided with a mounting hole, one end of the top end of the limiting rod is movably matched with the mounting hole, and the top end of the limiting rod is provided with a pin for preventing falling. The other end of the limiting rod is hinged with the ditching handle, specifically, a groove-shaped block is fixed on the ditching handle, after the end part of the ditching handle is arranged in the groove-shaped block, a pin penetrates through the groove-shaped block and a through hole on the ditching handle to be hinged, and the limiting pressure spring is limited between the groove-shaped block and the support frame.

Preferably, the lower side of the fixed rod is provided with a guide rod, the guide rod is L-shaped, the vertical section of the guide rod is connected with the fixed rod, and the horizontal section of the guide rod is provided with a holding rod in a sliding manner. Specifically, the holding rod is provided with a sliding hole along the radial direction, and the horizontal section of the guide rod is in sliding fit with the sliding hole. The horizontal section of the guide rod between the vertical section and the retaining rod is also sleeved with a retaining spring, and the ditching handle is pressed on the retaining rod. The angle and the ditching depth of the ditcher can be adjusted in a profiling mode through the retaining rod and the retaining spring, the minimum depth of the ditcher is limited, and the consistency of the sowing depth is guaranteed.

Preferably, the rotating rod is provided with a limiting ring, and the limiting ring is provided with a limiting pin. The spacer pin can be used for limiting the position of the rotary rod by extending into a hole in the limiting ring, so that the position of the furrow opener can be axially adjusted, and the seeder can be suitable for seeding in various different modes.

Preferably, the furrow opener comprises a left side plate and a right side plate, the front parts of the left side plate and the right side plate are wide, the rear parts of the left side plate and the right side plate are narrow, the front side edges of the left side plate and the right side plate are connected, and soil loosening tips are arranged at the bottoms of the front ends of the left side plate and the right side plate; and a reinforcing rod is arranged between the left side plate and the right side plate, and the ditching handle is connected with the reinforcing rod. Through the structural design of furrow opener, increase the ability of digging earth, resistance when reducing the ditching to the space between left side board and the right side board can lead seed or fertilizer, thereby realizes the seeding of several kinds of different modes.

The utility model also provides a seeder structure, include as above imitative topography ditching device, still include the frame, the dead lever is fixed the bottom of frame still is equipped with profile modeling running gear in the frame.

Preferably, the profile modeling running gear includes the cantilever, the one end of cantilever is articulated with drive arrangement's output, and the wheel is installed to the other end of cantilever, and the cantilever is close to the one end of wheel articulates there is electric putter, electric putter's the other end and frame are articulated.

Preferably, the cantilever comprises a housing, a first chain wheel and a second chain wheel are arranged in the housing, the first chain wheel is mounted on an output shaft of the driving device, the wheel is mounted on a wheel shaft of the second chain wheel, the first chain wheel and the second chain wheel are connected through a chain, and the electric push rod is hinged to the housing.

Under the profile modeling seeding and the profile modeling fertilization of the profile modeling ditching device, the rack can be moved up and down through the rotation of the cantilever, and the seeding depth is further adjusted. Specifically, the cantilever rotates around the wheel shaft of the first chain wheel through the extension and retraction of the electric push rod, so that the rack is lifted or lowered, and the sowing depth is adjusted.

The utility model also provides a soybean and corn compound seeder, which comprises the seeder structure, a seeding device and a fertilizing device are also arranged on the frame, and terrain-imitating ditching devices are arranged at the lower sides of the seeding device and the fertilizing device; the seeding device comprises a first seed metering device, a second seed metering device, a third seed metering device and a fourth seed metering device which are sequentially arranged from right to left, wherein the center distance between the first seed metering device and the second seed metering device is 200mm, the center distance between the second seed metering device and the third seed metering device is 400mm, and the center distance between the third seed metering device and the fourth seed metering device is 200mm; the fertilizer applying device comprises a fertilizer box, and the fertilizer box is divided into three parts with adjustable fertilizer discharging amount.

Based on the agronomic requirements of soybean and corn planting in Chongqing city, the distance between the corns is 400mm, and the distance between the soybeans is 200mm, the seeder can realize a plurality of planting modes such as soybean and corn net cropping, 2 rows of corn interplanting, 4 rows of soybean interplanting, 2+2 mode soybean and corn intercropping, and 2+4 mode soybean and corn intercropping, and is suitable for the planting of the soybeans and the corns in different areas. Specifically, the seeding device adopts the outer sheave clutch to sow, and the seeding quantity is adjusted through the left-right sliding seed discharging block. The four seed sowing devices are all fixed on the iron plate, the coaxiality requirement is high, the brushless motor drives the motor shaft to rotate, the seed sowing blocks rotate, the seeds fall into the grooves, fall out under the action of gravity after rotating for a certain angle, and the seeds reach the grooves generated by the operation of the furrow opener through the seed sowing openings and the seed sowing pipes, so that the seed sowing is completed. Fertilizer injection unit is similar with the seeder structure, comprises fertile case, fertilizer apparatus, fertilizer shaft, sprocket chain, fertilizer discharging motor etc. because soybean, maize fertilization material nitrogen content are different, so need different fertilizer, the different volume fertilize, can divide into the triplex with fertile case, and its proportion is 1:2:1, inter-row fertilization is carried out, and the fertilizer discharge amount can be adjusted by sliding the seed discharging block left and right.

Preferably, a PLC control center is arranged on the rack, the driving device is a gasoline engine, the PLC control center drives the seeding device and the fertilizing device through a brushless motor, and the gasoline engine is used for driving wheels. The gasoline engine passes through belt, belt pulley and belt pulley clutch with power transmission to reduction gear part, and the reduction gear is through inside speed reduction back, with little power through universal joint, sprocket chain transmission to the wheel on, be equipped with the rear portion universal wheel simultaneously to realize the walking and the turn of seeder. In order to realize the smooth running and stopping of the seeder, an electric push rod with the stroke of 30mm is fixedly connected at the pull rod of the belt pulley clutch, and the electric push rod is controlled by a knob switch to control the 'on' and 'off' of the belt pulley clutch.

The seeding and fertilizing machine uses the brushless motor to provide power, uses the PLC control center to control, and uses the wheel advancing speed as a reference to adjust the rotating speed of the brushless motor. The proximity switch carries out angle conversion by taking the number of the sprocket teeth in the cantilever as a counting unit, thereby measuring the rotating speed of the wheel. When the seeder turns, the seeding motor and the fertilizer discharging motor stop working immediately under the control of the PLC control center because the difference of the rotating speeds measured by the proximity switches at the two sides is overlarge. In addition, the machine is 1000mm wide, 1200mm long and 700mm high, belongs to small-size machinery, is applicable to the soybean maize banding seeding in hilly mountain areas.

The utility model has the advantages that:

through the structure setting of imitative topography ditching device, seeding, fertilization all ditch, and the furrow opener combines spacing pressure spring to imitate the topography. Specifically, under the action of the limiting pressure spring, the furrow opener can always keep a certain depth of contact with the ground, and when the current soil is raised, the furrow opener moves upwards under the action of the movable connection of the limiting spring and the limiting rod, so that the sowing depth is ensured to be unchanged; when the front ground is sunken, the furrow opener moves down under the effect of spacing pressure spring and gag lever post swing joint, guarantees that the depth of planting is unchangeable. The principle is the same when fertilizing, so that the fertilizing depth is consistent. The utility model discloses an imitative topography ditching device for imitative topography seeding and fertilization realization.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic structural view of a furrow opener of the terrain-imitating furrowing device of the present invention;

fig. 4 is a schematic structural view of a specific embodiment of the seeding machine of the present invention;

fig. 5 is a schematic view of the partial structure of the seeding machine of the utility model.

In the above drawings: 1. a terrain-imitating ditching device; 11. fixing the rod; 111. a support ring; 112. a support frame; 12. a rotating rod; 121. a limiting ring; 122. a spacing pin; 13. a furrow opener; 131. a ditching handle; 132. a left side plate; 133. a right side plate; 134. a reinforcing bar; 14. a limiting rod; 141. a limiting pressure spring; 15. a guide bar; 151. a holding spring; 16. a holding rod; 2. a frame; 3. a profiling traveling device; 31. a cantilever; 311. a housing; 312. a first sprocket; 32. an electric push rod; 4. a drive device; 5. a wheel; 6. a seeding device; 61. a first seed discharger; 62. a second seed metering device; 63. a third seed metering device; 64. a fourth seed sowing device; 7. a fertilizing device; 71. and (7) fertilizer box.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and fig. 2, the utility model provides an imitative topography ditching device 1, including dead lever 11, support ring 111 and support frame 112 have set firmly on the dead lever 11, and bull stick 12 is installed to the rotation of support ring 111, and the one end of fixed ditching handle 131 on the bull stick 12, furrow opener 13 are installed to the other end of ditching handle 131, and the activity is equipped with gag lever post 14 between support frame 112 and the ditching handle 131, and the cover is equipped with spacing pressure spring 141 on the gag lever post 14.

In this embodiment, the structure of the terrain-imitation ditching device 1 is arranged, ditching is carried out on seeding and fertilizing, and the ditcher 13 is combined with the limiting pressure spring 141 to carry out terrain imitation. Specifically, under the action of the limiting pressure spring 141, the furrow opener 13 can always keep a certain depth of contact with the ground, and when the earth in the front is raised, the furrow opener 13 moves upwards under the action of the movable connection of the limiting spring and the limiting rod 14, so that the sowing depth is not changed; when the front land is sunken, the furrow opener 13 moves downwards under the action of the limiting pressure spring 141 and the limiting rod 14 in a movable connection mode, and the sowing depth is guaranteed to be unchanged. The principle is the same when fertilizing, make the depth of fertilization unanimous. The utility model discloses an imitative topography ditching device 1 for imitative topography seeding and fertilization realization.

Specifically, the end of the support frame 112 far away from the ditching handle 131 is located on the upper side of the fixing rod 11, a mounting hole is formed in the support frame 112, one end of the top end of the limiting rod 14 is movably matched with the mounting hole, the limiting rod 14 can move up and down in the mounting hole, and the top end of the limiting rod 14 is further provided with a pin which is prevented from disengaging. The other end of the limiting rod 14 is hinged with the ditching handle 131, specifically, a groove-shaped block is fixed on the ditching handle 131, after the end part of the ditching handle 131 is arranged in the groove-shaped block, a pin penetrates through the groove-shaped block and a through hole on the ditching handle 131 to be hinged, and the limiting compression spring 141 is limited between the groove-shaped block and the supporting frame 112.

Meanwhile, a guide rod 15 is arranged on the lower side of the fixing rod 11, the guide rod 15 is L-shaped, the vertical section of the guide rod 15 is fixedly connected with the fixing rod 11, and a retaining rod 16 is slidably mounted on the horizontal section of the guide rod 15. Specifically, the holding rod 16 is provided with a sliding hole along the radial direction, and the horizontal section of the guide rod 15 is in sliding fit with the sliding hole. The horizontal section of the guide rod 15 between the vertical section and the retaining rod 16 is also sleeved with a retaining spring 151, and the ditching shank 131 is pressed against the retaining rod 16. The angle and the ditching depth of the ditcher 13 can be adjusted in a copying way through the retaining rod 16 and the retaining spring 151, the lowest depth of the ditcher 13 is limited, and the consistency of the sowing depth is ensured. In addition, a limiting ring 121 is disposed on the rotating rod 12, and a limiting pin 122 is disposed on the limiting ring 121. The limiting pin 122 can limit the position of the rotating rod 12 by extending into the hole on the limiting ring 121, so that the position of the furrow opener 13 can be axially adjusted, and the seeder can be suitable for seeding in a plurality of different modes.

As shown in fig. 3, the furrow opener 13 comprises a left side plate 132 and a right side plate 133, wherein the left side plate 132 and the right side plate 133 are wide in front and narrow in back, the front sides of the left side plate 132 and the right side plate 133 are connected, and soil loosening tips are arranged at the bottoms of the front ends of the left side plate 132 and the right side plate 133; a reinforcing rod 134 is arranged between the left side plate 132 and the right side plate 133, and the ditching handle 131 is connected with the reinforcing rod 134. Through the structural design of the furrow opener 13, the soil digging capacity is increased, the resistance in ditching is reduced, and the space between the left side plate 132 and the right side plate 133 can guide seeds or fertilizers, so that seeding in different modes is realized.

As shown in fig. 4, the utility model also provides a seeder structure, including imitative topography ditching device 1 as above, still include frame 2, dead lever 11 is fixed in the bottom of frame 2, still is equipped with profile modeling running gear 3 in the frame 2.

As shown in fig. 5, the profile walking device 3 includes a cantilever 31, one end of the cantilever 31 is hinged to the output end of the driving device 4, the other end of the cantilever 31 is provided with a wheel 5, one end of the cantilever 31 close to the wheel 5 is hinged to an electric push rod 32, and the other end of the electric push rod 32 is hinged to the frame 2. Specifically, the suspension arm 31 includes a housing 311, a first sprocket 312 and a second sprocket (not shown in the figure) are disposed in the housing 311, the first sprocket 312 is mounted on an output shaft of the driving device 4, a wheel 5 is mounted on a wheel axle of the second sprocket, the first sprocket 312 and the second sprocket are connected by a chain, and the electric push rod 32 is hinged to the housing 311.

In this embodiment, the rack 2 can be moved up and down by rotating the arm 31 even in the case of the copying seeding and copying fertilizing by the terrain-imitation furrowing device 1, and further the seeding depth can be adjusted. Specifically, the extension and retraction of the electric push rod 32 causes the cantilever 31 to rotate around the wheel axle of the first chain wheel 312, so that the frame 2 is raised or lowered, and the sowing depth is adjusted.

As shown in fig. 4, the utility model also provides a compound seeder of soybean maize still is equipped with seeder 6 and fertilizer injection unit 7 in the frame 2, and seeder 6 and fertilizer injection unit 7's downside all is equipped with imitative topography ditching device 1. The seeding device 6 comprises a first seed metering device 61, a second seed metering device 62, a third seed metering device 63 and a fourth seed metering device 64 which are sequentially arranged from right to left, the center distance between the first seed metering device 61 and the second seed metering device 62 is 200mm, the center distance between the second seed metering device 62 and the third seed metering device 63 is 400mm, and the center distance between the third seed metering device 63 and the fourth seed metering device 64 is 200mm; the fertilizer application device 7 comprises a fertilizer box 71, and the fertilizer box 71 is divided into three parts with adjustable fertilizer discharge amount.

Based on the agronomic requirements of soybean and corn planting in Chongqing city, the distance between the corns is 400mm, and the distance between the soybeans is 200mm, the seeder can realize a plurality of planting modes such as soybean and corn net cropping, 2 rows of corn interplanting, 4 rows of soybean interplanting, 2+2 mode soybean and corn intercropping, and 2+4 mode soybean and corn intercropping, and is suitable for the planting of the soybeans and the corns in different areas. Specifically, the seeding device 6 adopts an outer sheave clutch to seed, and the seeding amount is adjusted by sliding the seed discharging block left and right. The four seed sowing devices are all fixed on the iron plate, the coaxiality requirement is high, the brushless motor drives the motor shaft to rotate, the seed sowing blocks rotate, the seeds fall into the grooves, fall out under the action of gravity after rotating for a certain angle, and the seeds reach the grooves generated by the operation of the furrow opener 13 through the seed sowing openings and the seed sowing pipes, so that the seed sowing is completed. Fertilizer injection unit 7 is similar with the 6 structure of seeder, comprises fertile case 71, fertilizer apparatus, fertilizer shaft, sprocket chain, fertilizer discharging motor etc. because soybean, maize applied fertilizer nitrogen content is different, so need different fertilizer, fertilize by different volumes, can divide into the triplex with fertile case 71, and its proportion is 1:2:1, inter-row fertilization is carried out, and the fertilizer discharge amount can be adjusted by sliding the seed discharging block left and right.

In addition, a PLC control center is arranged on the frame 2, the driving device 4 is a gasoline engine, the PLC control center drives the seeding device 6 and the fertilizing device 7 through a brushless motor, and the gasoline engine is used for driving the wheels 5. The gasoline engine passes through belt, belt pulley and belt pulley clutch with power transmission to reduction gear part, and the reduction gear is through inside speed reduction back, with little power through universal joint, sprocket chain transmission to wheel 5 on, be equipped with the rear portion universal wheel simultaneously to realize the walking and the turn of seeder. In order to realize the smooth running and stopping of the seeder, an electric push rod 32 with the stroke of 30mm is fixedly connected at the pull rod of the belt pulley clutch, and the electric push rod 32 is controlled by a knob switch to control the 'on' and 'off' of the belt pulley clutch.

The seeding and fertilizing machine uses the brushless motor to provide power, controls by a PLC control center, and adjusts the rotating speed of the brushless motor by taking the advancing speed of the wheels 5 as reference. The proximity switch measures the rotation speed of the wheel 5 by performing an angular conversion using the number of sprocket teeth in the arm 31 as a count unit. When the seeder turns, the seeding motor and the fertilizer discharging motor stop working immediately under the control of the PLC control center because the rotating speed difference measured by the proximity switches at the two sides is overlarge. In addition, the machine is 1000mm wide, 1200mm long and 700mm high, belongs to small-size machinery, is applicable to the soybean maize banding seeding in hilly mountain areas.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a topography-imitated ditching device which characterized in that: the ditching machine is characterized by comprising a fixing rod (11), wherein a supporting ring (111) and a supporting frame (112) are fixedly arranged on the fixing rod (11), a rotating rod (12) is installed in the supporting ring (111) in a rotating mode, one end of a ditching handle (131) is fixed on the rotating rod (12), a ditcher (13) is installed at the other end of the ditching handle (131), a limiting rod (14) is movably arranged between the supporting frame (112) and the ditching handle (131), and a limiting pressure spring (141) is sleeved on the limiting rod (14).

2. A terrain-imitating trenching assembly as claimed in claim 1 wherein: one end of the support frame (112) far away from the ditching handle (131) is located on the upper side of the fixing rod (11), a mounting hole is formed in the support frame (112), one end of the limiting rod (14) is movably matched with the mounting hole, and the other end of the limiting rod (14) is hinged to the ditching handle (131).

3. A terrain-imitating trenching assembly as claimed in claim 2 wherein: the lower side of the fixed rod (11) is provided with a guide rod (15), the horizontal section of the guide rod (15) is provided with a retaining rod (16) in a sliding mode, the horizontal section of the guide rod (15) is further sleeved with a retaining spring (151), and the ditching handle (131) is pressed against the retaining rod (16).

4. A terrain-imitating trenching assembly as claimed in claim 3 wherein: the rotary rod (12) is provided with a limiting ring (121), and the limiting ring (121) is provided with a limiting pin (122).

5. The terrain-imitating trenching assembly of claim 4 wherein: the furrow opener (13) comprises a left side plate (132) and a right side plate (133), the front of the left side plate (132) and the front of the right side plate (133) are wide, the rear of the left side plate (132) and the rear of the right side plate (133) are narrow, the front sides of the left side plate (132) and the right side plate (133) are connected, and soil loosening tips are arranged at the bottoms of the front ends of the left side plate (132) and the right side plate (133); a reinforcing rod (134) is arranged between the left side plate (132) and the right side plate (133), and the ditching handle (131) is connected with the reinforcing rod (134).

6. A planter structure comprising a terrain-imitating furrowing device (1) as claimed in any one of claims 1 to 5, wherein: the device is characterized by further comprising a rack (2), wherein the fixing rod (11) is fixed to the bottom of the rack (2), and a profiling walking device (3) is further arranged on the rack (2).

7. The planter structure of claim 6, wherein: profile modeling running gear (3) are including cantilever (31), the one end of cantilever (31) is articulated with drive arrangement (4)'s output, and wheel (5) are installed to the other end of cantilever (31), and cantilever (31) are close to the one end of wheel (5) articulates there is electric putter (32), the other end and frame (2) of electric putter (32) are articulated.

8. The planter structure of claim 7, wherein: the suspension arm (31) comprises a shell (311), a first chain wheel (312) and a second chain wheel are arranged in the shell (311), the first chain wheel (312) is installed on an output shaft of the driving device (4), the wheel shaft of the second chain wheel is provided with the wheel (5), the first chain wheel (312) and the second chain wheel are connected through a chain, and the electric push rod (32) is hinged to the shell (311).

9. A compound soybean-corn planter comprising the planter structure of claim 8, wherein: the machine frame (2) is also provided with a seeding device (6) and a fertilizing device (7), and the lower sides of the seeding device (6) and the fertilizing device (7) are respectively provided with a terrain-imitated ditching device (1); the seeding device (6) comprises a first seed metering device (61), a second seed metering device (62), a third seed metering device (63) and a fourth seed metering device (64) which are sequentially arranged from right to left, the center distance between the first seed metering device (61) and the second seed metering device (62) is 200mm, the center distance between the second seed metering device (62) and the third seed metering device (63) is 400mm, and the center distance between the third seed metering device (63) and the fourth seed metering device (64) is 200mm; the fertilizer applying device (7) comprises a fertilizer box (71), and the fertilizer box (71) is divided into three parts with adjustable fertilizer discharging amount.

10. The soybean-corn compound seeder as claimed in claim 9, wherein: the machine is characterized in that a PLC control center is arranged on the rack (2), the driving device (4) is a gasoline engine, the PLC control center drives the seeding device (6) and the fertilizing device (7) through a brushless motor, and the gasoline engine is used for driving wheels (5).

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