JP2016158505A - Fertilization device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanter including a fertilization device capable of supplying a fertilizer to a field without being affected by conveyance air.SOLUTION: The fertilization device includes: an extrusion spiral 10 arranged between a feeding port 7 of a feeding device 3 and a blower cylinder 6, forming a continuous spiral face on a peripheral face of a spiral shaft 8, and including a spiral blade 9 forming a continuous spiral face in the spiral shaft 8 direction; an extrusion cylinder 12 axially mounting the extrusion spiral 10 so as to rotate the extrusion spiral while fitted inside the extrusion cylinder 12 and extrude a fertilizer supplied from the feeding port 7 to an extrusion port 11; and a supply hopper 14 receiving the fertilizer extruded from the extrusion port 11 of the extrusion cylinder 12 and supplying the fertilizer to a supply port 13 on an upper peripheral part of the blower cylinder 6. The fertilizer flowing down from the feeding port 7 is supplied to the blower cylinder 6 while being extruded by rotation of the extrusion spiral 10.SELECTED DRAWING: Figure 3

Description

  In the fertilizer of the multi-row fertilizer form, the present invention reduces the diameter and size of the air duct and the blower blower for passing the air to be fed to the fertilizer hose portion configured for each fertilizer strip, and reduces the size of the entire fertilizer application apparatus. By forming the height low, it is easy to perform operations such as supplying fertilizer to the fertilizer hopper and supplying supplementary seedlings to the multi-row planting device.

  A technology in which an air duct is arranged on the rear side of the feeding device, the air blown from the blowers at the left and right lateral ends is guided in the lateral direction, and the fertilizer fed to the feeding portion communicating with each fertilizer hose is jetted. The configuration is known (see, for example, Patent Document 1).

JP 2014-212718 A

  In the form of branching communication from the air duct to each fertilizer hose and performing the fertilizer conveying blast, if this air duct is arranged near the rear side of the fertilizer, particularly near the foot of the rear floor, the operator Standing in the area, it is easy to disturb the replenishment work such as replenishing fertilizer to the fertilizer hopper or replenishing mat seedlings to the seedling tank of the multi-row planting device connected to the rear Difficult to perform safe work.

  The invention described in claim 1 includes a fertilizer hopper (1) for storing fertilizer, a feeding device (3) for feeding fertilizer supplied from the fertilizer hopper (1) by rotation of a feeding roll (2), and a blower In the fertilizer application which comprises the air pipe (6) which receives the fertilizer fed from the said feeding apparatus (3) through the ventilation from (4), and carries out ventilation conveyance to the fertilization hose (5), the said feeding apparatus (3) Between the outlet (7) and the blower cylinder (6), a spiral surface is formed continuously on the peripheral surface of the spiral shaft (8), and the spiral continues along the direction of the spiral axis (8). An extrusion helix (10) having a spiral blade (9) that forms a surface, and the extrusion helix (10) is rotated and supplied from the feed outlet (7) while being fitted inside the extrusion cylinder (12). An extruding cylinder (12) for axially mounting the fertilizer to be extruded to the extruding port (11); A feed hopper (14) that receives fertilizer extruded from the extrusion port (11) of 2) and supplies the fertilizer to the supply port (13) of the upper peripheral portion of the blow tube (6) is disposed, and the feed port (7) A fertilizer is supplied to the blower cylinder (6) while extruding the fertilizer flowing down from the pipe by the rotation of the extrusion spiral (10).

  The fertilizer from the feeding port (7) fed from the feeding device (3) is supplied to the pushing port (16) of the extrusion cylinder (12) having the extrusion spiral (10), and the rotation of the extrusion spiral (10). Thus, the inside of the extrusion cylinder (12) is extruded to the rear side and supplied from the extrusion opening (11) to the supply opening (13) of the supply hopper (14) of the lower blowing cylinder (6). Air blown out from the blower (4) is blown so as to branch to each blower cylinder (6) through the air duct (17), and fertilizer supplied to the blower cylinder (6) from the supply port (13). Spray to the rear fertilizer hose (5).

  The air blown into the blower cylinder (6) is partly pushed toward the upper supply port (13), but the extrusion communicated with the upper extrusion port (11) of the supply hopper (14). On the inner peripheral surface of the cylinder (12), the rotating outer peripheral edge of the spiral blade (9) that is integrally formed with the spiral shaft (8) is disposed between the pushing port (16) and the extrusion port (11). The extrusion helix (10) which is rotated close to the inner peripheral surface of the formed extrusion cylinder (12) and the fertilizer which is extruded and transferred by being fitted to the helical interval portion of the extrusion helix (10) Therefore, it is prevented that the wind pressure blown into the supply port (13) is immediately blown into the upper feed outlet (7) side or escapes to the rear fertilization hose (5) side in the blow tube (6). To effectively maintain the air conveying force.

  And since the conveyance in the said extrusion cylinder (12) is forcibly performed uniformly by a pushing spiral (10), an exact fertilization effect | action is performed.

  The invention described in claim 2 includes a hopper outlet (15) just below the fertilizer hopper (1), a feeding outlet (7) just below the feeding device (3), and a pushing port (16) on the upper side of the extrusion cylinder (12). And an air duct (17) for guiding the air blown from the blower (4) to the air blowing cylinders (6) are arranged in a superposed manner in the vertical direction, and the extrusion cylinders (12) to the air blowing cylinders are arranged. A rear floor (20) extending between the left and right rear fenders (19) on the rear side of the driver's seat (18) is formed at the front side of the air duct (17) communicating with (6), and the rear end of each extruded cylinder (12) The helix shaft (8) of the part is linked to the rear end of the left and right lateral direction, and the fertilization hose (5) is detachably connected to the rear end of each blow tube (6). The fertilizer application device according to claim 1, which is characterized.

  Fertilizer fed from the fertilizer hopper (1) by the rotation of the feeding roll (2) is supplied from the hopper outlet (15) to the extrusion cylinder (12) through the feeding outlet (7) and the pushing port (16). It is guided to the supply port (13) near the rear part of the extrusion cylinder (12) and supplied to the blower cylinder (6). For this reason, the fertilizer supply route is in the form of the shortest distance lined up in a linear polymerization form in a substantially vertical direction, and the fertilizer supply and fertilization can be speeded up.

  The air duct (17) arranged at the lowermost step part is arranged at the front side part of the rear floor (20), and the foot space at the lower front side of the fertilizer hopper (1), the feeding device (3), etc. is widely opened. The operator's foot space on the upper surface of the rear floor (20) is widened to facilitate replenishment work.

  Moreover, the interlocking | linkage axis | shaft (21) is arrange | positioned at the front side part of each fertilizer of multi-row fertilization, and the back end part of each spiral axis | shaft (8) is arrange | positioned across the left-right horizontal direction, and is comprised.

  And by attaching each fertilization hose (5) to the rear-end part of each ventilation pipe | tube (6) so that attachment or detachment is possible, attachment / detachment of the interlocking | linkage axis | shaft (21), fertilization hose (5), etc. from a vehicle body rear side part. Cleaning maintenance can be easily performed.

  Invention of Claim 3 provided the said air duct (17) and the ventilation pipe | tube (6) along the lower side of a rear floor (20), The fertilizer application apparatus of Claim 1 or 2 characterized by the above-mentioned. To do.

  As mentioned above, the air duct (17) at the lowest stage of the mechanical parts of the respective portions of the fertilizer applicator lined up and down in the vertical direction and the blower cylinder (6) connected to the rear side of the air duct (17) are connected to the rear floor ( 20) Since the height of the fertilizer application part which protrudes on the upper surface of this floor (20) becomes low by being arranged along the horizontal direction on the lower part of the lower side part, it rides on the rear floor (20) and works. Sometimes, the replenishment work becomes easier.

  Further, since the air duct (20) and the blower cylinder (6) are not exposed on the upper surface of the rear floor (20), the rear upper surface of the rear floor (20) is formed wide and flat to facilitate work movement.

  According to a fourth aspect of the present invention, the rear end of the blower cylinder (6) is provided so as to protrude rearward from the rear end of the upper extrusion cylinder (12), and the front ends of the extrusion cylinders (12) are provided. The extrusion helix (10) is detachably attached to the part from the upper surface side of the rear floor (20), and a fertilizer hose (5) is detachably connected to the rear end of the blow tube (6). The fertilizer application device according to any one of claims 1 to 3.

  Since the rear end portion of the blower cylinder (6) positioned at the lowermost step portion of the fertilizer application device projects rearward from the rear end portion of the upper pusher tube (12), the blower pipe (6) This facilitates maintenance work such as attachment / detachment and cleaning of the fertilizer hose (5) to be attached / detached to / from the rear end.

  Moreover, the extrusion spiral (10) attached to and detached from the front end portion of the extrusion cylinder (12) is put into and out of the extrusion cylinder (12) from the upper surface side of the front rear floor (20) to facilitate the attachment / detachment operation. In addition, since the interlocking shaft (21) that interlocks each spiral shaft (8) is in a form of gear interlocking at a position above the front end portion of the blower cylinder (6), the attachment / detachment of the interlocking shaft (21) is obstructed. To prevent maintenance and improve maintainability.

  According to the fifth aspect of the present invention, a hose joint (22) whose connection direction can be changed is provided at the rear end of the blow tube (6), and a fertilizer hose is provided at the outlet (23) of the hose joint (22). The fertilizer application device according to any one of claims 1 to 4, wherein (5) is detachably connected.

  A hose joint (22) is provided at the rear end of the blow tube (6) so that the connecting direction of the fertilizer hose (5) can be changed in the horizontal direction or the vertical direction. It can be mounted in an appropriate direction according to changes in form and the like, and a smooth supply of fertilizer can be performed with a simple configuration and operation.

  The invention according to claim 1 effectively maintains the blowing force of the fertilizer sent to the blower cylinder (6) when the blown air blown from the blower (4) is fertilized and conveyed through the blower cylinder (6). Thus, fertilization can be performed efficiently and efficiently.

  Further, it is possible to prevent the wind pressure blown into the blower cylinder (6) from flowing backward through the pusher cylinder (12) to the pushing port (16), and to escape the fertilizer by the feeding roll (2). The operation can be performed smoothly, and the extrusion action by the extrusion spiral (10) can be performed accurately and smoothly.

  And the gap between the extrusion helix (10) and the inner peripheral surface of the extrusion cylinder (12) is narrowed to reduce the escape of wind pressure at the time of the extrusion action, and the effect of conveying fertilizer by the blowing force is effective. Since it can raise, it can prevent the fertilizer clogging in a fertilizer conveyance path | route, such as a blower cylinder (6) and a fertilizer hose (5), a stagnation, etc., and can perform smooth and stable fertilization conveyance.

  In addition to the effect of the invention according to claim 1, the invention according to claim 2 has a hopper outlet (15), a feeding outlet (7), and a push-in opening (16) which are the central part of the width in the front-rear direction of the fertilizer application device. And the air duct (17) are superposed in the vertical direction to reduce the front-rear width and form a compact arrangement. In order to arrange the blower cylinder (6) on the rear side of the air duct (17) and connect the supply port (13), the total height between the air duct (17) and the fertilizer hopper (1) is reduced, and The space | interval part between an air duct (17) and a fertilization hose (5) can be shortened, and it can be set as a compact structure.

  Moreover, the structure of the interlocking shaft (21) with respect to the rear end portion of each helical shaft (8) is facilitated, and the attachment / detachment connection of the fertilizer hose (5) to the blower tube (6) at the lower rear portion protruding rearward is easier. Can be

  And since the influence of a conveyance wind can be suppressed by transferring a fertilizer to the fertilization hose (5) with the extrusion spiral (10) provided in the upper position rather than the said fertilization hose (5), it stabilizes the amount of fertilization. Can do.

  According to the third aspect of the present invention, in addition to the effect of the first or second aspect, the air duct (17) and the blower tube (6) are provided along the lower side of the rear floor (20). The upper surface of the foot portion of (20) is widely formed, so that the replenishment operator can easily stand on the upper surface of the rear floor (20), and the replenishment work is facilitated. In addition, the protrusion height of the fertilizer on the upper surface of the rear floor (20) is lowered to make it compact, and the replenishment work is facilitated.

  In addition to the effect of the invention according to any one of claims 1 to 3, the rear end portion of the blower cylinder (6) is the rear end of the upper extrusion cylinder (12). Since it is the form which protruded to the rear side rather than the part, while being able to perform attachment and detachment from the rear floor (20) upper surface of the extrusion spiral shaft (8) of the extrusion cylinder (12) easily and simply, the blow cylinder (6) The fertilization hose (5) can be easily attached to and detached from the rear.

  Moreover, even if it is a form which arrange | positions the said ventilation air duct (17) under a rear floor (20), the rear end of each ventilation pipe | tube (6) protrudes back, and attachment or detachment of a fertilization hose (5) is easy. Turn into.

  In addition to the effect of the invention according to any one of claims 1 to 4, the invention according to claim 5 is characterized in that the air outlet (23) of the hose joint (22) at the rear end of the blow tube (6). The direction of the fertilizer hose (5) can be changed freely by rotating in the left and right and up and down directions. By selecting in the appropriate direction, fertilization can be performed smoothly and maintainability can be improved.

Side view of seedling transplanter Top view of seedling transplanter Side view of fertilizer application unit Front view of fertilizer application unit (A) Enlarged sectional side view of fertilizer application unit, (B) Side sectional view showing attachment / detachment state of air duct, (C) Side sectional view showing attachment / detachment state of air duct Front view of fertilizer application unit showing an embodiment Side view of fertilizer application unit showing an embodiment

  Based on the drawings, the seedling transplanting machine has a front wheel 25 steered by operating the steering handle 24 mounted on the front front axle housing of the vehicle body 26 and a rear wheel 27 having a large rotation diameter mounted on the rear axle housing. A tractor vehicle body 26 of a four-wheel drive type that can be driven and rotated via a transmission mechanism such as an engine 28 and a transmission case 29, and the like is moved up and down by the expansion and contraction of a lift cylinder 30 at the rear part of the vehicle body 26. The seedling planting device 32 is connected through a lift link 31 having a parallel link shape.

  A rear floor 20 is formed on the rear side of the driver's seat 18 on the vehicle body 26, and a fertilizer application device 33 is mounted. Side floors 34 covering the left and right sides of the vehicle body 26 from the upper part of the front wheel 25 to the rear fender 34 part of the upper part of the rear wheel 27 are formed, and a sub-floor 35 is formed on the outer side to extend these floors 34. 35, the rider moves to the rear floor 20 side while taking out the mat seedlings and the fertilizer bags loaded on the auxiliary seedling rack 37 on the outside of the front end as the passenger moves on the upper surface, and seedlings of the seedling planting device 32 The seedling can be replenished to the tank 36, and the fertilizer can be replenished to the fertilizer hopper 1 of the fertilizer application device 33.

  The seedling planting device 32 arranges the center float 38 and the side floats 39 on the left and right side portions, supports the seedling planting frame 40, and leveles the planted soil surface while sliding on the soil surface. . A seedling tank 36 in the form of a number corresponding to a multi-row planting arranged horizontally and widely on this seedling planting frame 40 is supported with a front rising slope, and a guide rail 41 formed along the rear lower end of the seedling tank 36 A mating device 43 that is operated to face each seedling inlet 42 is arranged, and a mating claw 44 at the tip of the planting device 43 is operated to the seedling inlet 42 to be fed out from the seedling tank 36. The seedlings are separated and held and are planted in a multi-row planting form on the soil surface.

  On the front side of the seedling planting device 32, there is a margin 45 for leveling the soil surface on the front side of each float 38, 39, and it can be moved up and down by the vertical rotation of the lift link 31 as the seedling planting device 32 is lifted and lowered. The leveling action by the floats 38 and 39 is facilitated.

  The fertilizer application 33 is mounted at the rear end of the vehicle body 26 at the front side of the seedling planting device 32 in the form of multi-row planting, and enables fertilization work simultaneously with the seedling planting work. A fertilizer grooving device 45 is provided in the vicinity of the front part of the seedling planting position of each float 38, 39 of the seedling planting device 32, and a fertilizer hose 5 is applied to the grooving portion formed by the grooving device 45. The fertilizer guided from the fertilizer 33 through the fertilizer hose 5 is caused to flow down into the formed groove by the groover 45 to perform the fertilization work. This groove is formed along the planted shoots and can be covered with a soil covering device or the like immediately after fertilization.

  A rear frame 46 is provided at the rear end portion of the vehicle body 26 at the center position between the rear fenders 19 on both the left and right sides. The rear floor 20 is supported on the rear frame 46, and the front end portion of the lift link 31 is moved up and down. It is connected so that it can rotate and rotate.

  A rear floor 20 is formed between the left and right rear fenders 19 so as to cover the rear side portion of the driver's seat 18 over the entire width of the seedling tank 36. A horizontal air duct 17 is supported and attached to a support frame 47 installed between the left and right rear frames 46, and a rear floor 20 made of a board material is laid on the upper side of the air duct 17. A rear end upper portion of the rear fender 19 is connected to the lower surface of the lateral end portion of the rear floor 20.

  The rear floor 20 and the air duct 17 are formed to have a width substantially equal to the lateral width of the seedling tank 36, and each fertilizer 33 is disposed on the upper surface of the rear floor 20, and the blower 4 is disposed at one end of the air duct 17. Air can be blown in, and at the other end, an extraction duct 48 for taking out the residue outside the machine, an on-off valve 49, etc. are provided, and this on-off valve 49 is closed during fertilization work, At the time of taking out the residue, it is opened and the residue (fertilizer) can be taken out from the take-out duct 48 by blowing air from the blower 4.

  The fertilizer application device 33 is arranged side by side in the form of the same radix as the number of seedlings of the seedling planting device 32 connected to the rear part of the vehicle body 26, and the upper fertilizer is rotated by rotating the feeding roll 2 around the roll shaft 49. Fertilizer made of powder and granules supplied from the hopper outlet 15 of the hopper 1 is fed to the lower outlet 7 side.

  The fertilizer hopper 1 is integrally formed for each of a plurality of units, and a funnel 50 and a hopper outlet 15 are arranged and formed at the bottom, and each hopper outlet 15 is fed over the feeding case 51 of the opposing feeding device 33. Communicate with the mouth 52. An openable / closable shutter 53 is provided at the hopper outlet 15 portion. The hopper outlet 15 located in the central portion of the fertilizer application hopper-1 and the roll shaft 49 located in the central portion of the feeding device 3 are arranged on a straight line Y in the vertical direction in a side view.

  An extrusion case 54 having an extrusion cylinder 12 formed therein and having an extrusion spiral 10 inside is disposed below the feeding case 51, and fertilizer flowing down from the feeding outlet 7 is received by the pushing port 16, and the extrusion spiral is formed. 10 is extruded to the extrusion port 11 at the rear end and supplied to the lower supply port 13. The supply port 13 is formed at a position biased rearward with respect to the upper push-in port 16, and communicates in the front-rear direction via an extrusion cylinder 12 that engages and rotates the helical shaft 8.

  The front and rear end surfaces of the extruded cylinder 12 form openings 55 and 56, the helical shaft 8 is fitted and inserted from the front side of the opening 55, and the bearing metal 57 is fitted to the front and rear ends of the helical shaft 8. , 58 are fitted into the openings 55 and 56 to be supported. The bevel gear 60 of the gear transmission case 59 is fitted to the rear end portion of the spiral shaft 8 and is transmitted and rotated from the interlocking shaft 21. The extrusion interval L between the end edges of the pushing port 16 and the extrusion port 11 of the extrusion cylinder 12 is set to an appropriate length, and the spiral blades 9 of several pitches are rotated in this extrusion interval L part.

  The spiral blade 9 is integrally formed around the portion of the spiral shaft 8, and rotates with the outer peripheral edge of the spiral blade 9 approaching the inner peripheral surface of the extrusion cylinder 12, and the fertilizer is pushed in by the rotation of the spiral shaft 10. When extruding from the extrusion port 11 to the extrusion port 11 side, the wind pressure of the blower cylinder 6 is configured to reduce the amount of escape air that escapes from the extrusion port 11 to the insertion port 16 side.

  In addition, the supply hopper 14 that forms the extrusion port 11 and the blower cylinder 6 are integrally formed at the lower part of the extrusion case 54, and the blower port 61 at the front end of the blower cylinder 6 is replaced with the duct port 62 of the air duct 17. And a ball seat 64 is formed around the opening 63 at the rear end of the blower cylinder 6 so that the hose joint 22 can be fitted in a freely changeable direction. To do. The base end portion of the flexible fertilization hose 5 is detachably connected to the outlet 23 of the hose joint 22.

  The supply hopper 14 forming the supply port 13 is provided with an anti-blow plate 65, and the upper edge is supported so as to be pivotable up and down around the plate shaft 66, and the wind force blowing up the lower supply port 13 is strong. In this case, the blowback prevention plate 65 is pushed upward to close the upper extrusion port 11 so as to suppress the blowing wind force into the extrusion cylinder 12.

  The air ducts 17 that guide the air flow to the air blowing cylinders 6 are positioned along the left and right lateral directions at the lower side of the extrusion cylinders 12, and are vertically moved through the hopper outlet 15, the roll shaft 49, the push-in opening 16, and the like. At the bottom end of the direction straight line Y. The air duct 17 is arranged and configured to be positioned at the center.

  Although the said air duct 17 fits each duct port 62 to the ventilation port 61 of the ventilation cylinder 6, and blows the wind pressure of the air duct 17 to the fertilizer hose 5 side (refer FIG.5 (B)), these each duct port By removing 62 from the air blowing port 61 and by making the duct port 62 face downward (see FIG. 5C), the residue in the air duct 17 and the deposits attached around the duct port 62 are cleaned. be able to.

  The roll shaft 49 of each of the feeding devices 3 is transmitted and rotated from an interlocking shaft 66 disposed below the rear floor 20. The interlocking shaft 66 is transmitted through a transmission shaft 67 driven from a transmission device in the rear axle housing. The interlocking shaft 21 that interlocks the helical shafts 8 is configured to transmit and rotate from the bevel gear 69 in the middle of the PTO shaft 68 that interlocks the seedling planting device 32 via the interlocking shaft 70 and the bevel gear 71. Further, the blower 4 is configured to rotate a fan by an electric motor.

  Next, in FIGS. 6 and 7, a discharge chute 75 having a Y-shape in front view that communicates with the funnel 50 portion is provided in the interval portion 74 between the fertilizer hoppers 1 adjacent to each other on the left and right sides. The upper end portion of the chute 75 communicates with the discharge port 76 of the funnel 50, and the fertilizer remaining in the funnel 50 can be taken out to the discharge chute 75 by opening the shutter 77 of the discharge port 76.

  The lower end portion 78 of the discharge chute 75 is connected to the air duct 17, and the residual fertilizer discharged by opening the shutter 79 of the lower end portion 78 is taken out and received by the air duct 17 and blown out to the discharge duct 48 at one side end. Can be transported.

  Since the Y-shaped discharge chute 75 is arranged in the space 74 between the pair of funnels 50 facing each other on the left and right, the number of settings can be reduced, and the Y-shaped discharge chute 75 can be easily obtained by looking over the air duct 17 at a position immediately below. Can be configured.

DESCRIPTION OF SYMBOLS 1 Fertilizer hopper 2 Feeding roll 3 Steering device 4 Blower 5 Fertilizer hose 6 Blower cylinder 7 Steering port 8 Spiral shaft 9 Spiral blade 10 Extrusion spiral 11 Extrusion port 12 Extrusion tube 13 Supply port 14 Supply hopper 15 Hopper exit 16 Push port 17 Air duct 18 Driver's seat 19 Rear fender 20 Rear floor 21 Interlocking shaft 22 Hose joint 23 Air outlet 24 Handle 25 Front wheel 26 Car body 27 Rear wheel

Claims (5)

Through the fertilizer receiving hopper (1) that stores the fertilizer, the feeding device (3) that feeds the fertilizer supplied from the fertilizer hopper (1) by the rotation of the feeding roll (2), and the ventilation from the blower (4), In the fertilizer application which constitutes the blow pipe (6) which receives the fertilizer fed from the feeding device (3) and blows and conveys it to the fertilizer hose (5),
A spiral surface is formed on the peripheral surface of the spiral shaft (8) between the feed outlet (7) of the feeding device (3) and the blower cylinder (6), and the direction of the spiral axis (8). And an extrusion helix (10) having a spiral blade (9) that forms a continuous spiral surface, and the extrusion helix (10) is rotated with the extrusion helix (10) fitted inside the extrusion cylinder (12). Receiving the fertilizer extruded from the extrusion port (11) of the extrusion cylinder (12) and the extrusion cylinder (12) which is axially mounted so as to extrude the fertilizer supplied from the outlet (7) to the extrusion port (11); A supply hopper (14) to be supplied to the supply port (13) at the upper peripheral portion of the blow cylinder (6) is disposed, and the fertilizer flowing down from the feed outlet (7) is extruded by the rotation of the extrusion spiral (10). A fertilizer feeding device, characterized in that the fertilizer is supplied to the blower cylinder (6).   Of the fertilizer hopper (1) directly below the hopper outlet (15), the feeding device (3) immediately below the feeding outlet (7), the push-out port (16) on the upper side of the pushing cylinder (12), and the blower (4) An air duct (17) for guiding the air flow to each blower cylinder (6) is arranged and configured in a superposed form in the vertical direction, and an air duct (air duct) that communicates air with these pusher pipes (12) to each of the blower pipes (6) ( 17), a rear floor (20) extending between the left and right rear fenders (19) on the rear side of the driver's seat (18) is formed on the front side portion of the driver seat (18), and the spiral shaft (8) rear end of each extruded cylinder (12). The interlocking shaft (21) extending in the left and right lateral direction is interlocked with the portion, and the fertilizer hose (5) is detachably connected to the rear end of each blower cylinder (6). Fertilizer equipment.   The fertilizer application device according to claim 1 or 2, wherein the air duct (17) and the blower tube (6) are provided along the lower side of the rear floor (20).   A rear end portion of the blower tube (6) is provided so as to protrude rearward from a rear end portion of the upper extrusion tube (12), and the rear floor (20) is provided at a front end portion of the extrusion tube (12). The extrusion helix (10) is removably attached from the upper surface side of the air pipe, and a fertilizer hose (5) is detachably connected to the rear end of the blow tube (6). The fertilizer application apparatus of Claim 1.   A hose joint (22) whose connection direction can be changed is provided at the rear end of the blow tube (6), and the fertilizer hose (5) is detachably connected to the outlet (23) of the hose joint (22). The fertilizer application device according to any one of claims 1 to 4, wherein the fertilizer application device is provided.

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