JPH11225524A - Opposingly rotating disk type fertilizer applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an opposingly rotating disk type fertilizer applicator capable of applicating fertilizer in wide range and in a leveling state to be used by changing the application width of fertilizer thereof to the narrow one corresponding to a part for planting or setting a seedling or a groove for growing Dioscorea batatas in a field. SOLUTION: This opposingly rotating disk type fertilizer applicator has many blades 41 installed in the upper faces of a pair of spinners 4 so as to have a prescribed retreating angle θ to the rotation direction of each of the spinners 4, and a fertilizer collecting member 5 in a chute shape or a funnel shape in the upper and lower direction, opened at the front side and installed at the application opening for allowing the manure M to be distributed by the spinner 4 so as to be freely detachably supported by the machine body frame 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a counter-rotating disc type fertilizer spreader.

[0002]

2. Description of the Related Art As a conventional counter-rotating disk type fertilizer spreader, for example, as shown in a perspective view of FIG. 1 and a plan view of FIG. On the upper surface, an inverted polygonal conical or funnel-shaped fertilizer hopper H forming an inner cavity in the fertilizer M storage chamber,
The bottom plate 2 formed in a disk shape is the upper plate portion 1 of the body frame 1.
The bottom plate 2 is fixedly mounted so as to fit into the through-hole formed in the bottom plate 2, and is disposed in the inner cavity of the body frame 1 formed in a flat box shape and supported on the lower plate portion 11. The agitator shaft 3 protruding from the gear case G is arranged, and the rotational power input from an input shaft S provided on the front side (the left side in the figure) of the gear case G is transmitted through a transmission mechanism in the gear case G. It is driven to rotate, and an agitator 30 is attached to the upper end thereof, so that the bottom in the fertilizer hopper H is rotated in the direction shown by the thick arrow c in the figure.

[0003] Further, in the peripheral portion of the bottom plate 2, arc-shaped shutter holes 20, which are substantially aligned with an imaginary circle centered on the agitator shaft 3, are symmetrically arranged left and right with the agitator shaft 3 as a symmetric axis. Opened in pairs, on the lower surface side of the shutter holes 20, 20, pivoted back and forth along the lower surface of the bottom plate 2 around the fulcrum pins 21, 21 provided on the upper plate portion 10 of the body frame 1. Shutters 23, 23 for adjusting the degree of opening of the feed holes 22, 22 formed by the open ports that leave the shutter holes 20, 20 closed are provided, and in them,
Rods 24 for opening and closing the shutter, which extend forward so as to be operable by an operator on a seat of a towing vehicle that pulls the body frame 1, are connected.

[0004] In the space between the lower surface of the upper plate portion 10 of the body frame 1 serving as the lower surface of the bottom plate 2 of the fertilizer hopper H and the upper surface of the gear case G, as shown in the plan view of FIG. The disk-shaped spinners 4, 4 arranged on the gear case G so as to be symmetrically arranged in pairs on the left and right sides, and rotated by the spinner shafts 40, 40 provided on the gear case G. 2 are disposed below the shutter holes 20 and 20 provided on the upper surface of the spinners 4. The spinner shafts 40 are driven by the input shaft S via the transmission mechanism in the gear case G, so that the pair of spinner shafts 40 is driven. 4.4 Arrows a and arrow b in FIG. 2
As shown in FIG. 1, the sides adjacent to the agitator shaft 3 rotate from the front (left side in FIG. 1) of the body frame 1 to the rear.

A spinner cover 6 is arranged so as to surround both left and right parts from the front side of the spinners 4 and fixedly mounted on the body frame 1, whereby the fertilizer put into the fertilizer hopper H M is the shutter hole 20
Of the spinners 4, 4 from the feed holes 22 formed at the open portions of the centrifugal force and the blades 41 ...
Swinging toward the rear of the fuselage frame 1 by the turning force of
Spreading is performed as shown in FIG.

[0006]

A conventional counter-rotating disc type fertilizer spreader in which a pair of disc-shaped spinners 4 are rotated in the same direction in such a manner is known as a paddy field. In a relatively large field such as the above, the fertilizer M is made for the purpose of spreading the fertilizer M in a wide range and evenly. The distribution shown in FIG. 3 results in a distribution as shown in FIG. 3, and the distribution width W1 shows a large spread to the left and right with respect to the distribution center line e in the figure.

However, depending on the crop, as shown in the distribution diagram of the amount of fertilizer applied in FIG. 4, there is a case where it is desired to apply a row with an extremely small spray width W2 only to a portion of the field where the plant is planted or planted. In addition, as shown in FIG. 5, in the cultivation of yam, there is a problem that it is not possible to apply fertilizer as an original fertilizer to a row of grooves in a field that has been previously finished to an arbitrary groove width W3 and a groove depth D1 by a trencher or the like. was there.

SUMMARY OF THE INVENTION The present invention has been made to solve the problem of the conventional counter-rotating disc type fertilizer spreader, and the fertilizer is spread over a wide area and evenly. A new means of using the obtained counter-rotating disc-type fertilizer spreader by changing the width of the fertilizer spread to a narrow width corresponding to the part to be planted or planted in the field or the cultivation groove of the yam, etc. The purpose is to provide.

[0009]

Means for Solving the Problems In the present invention, as means for achieving the above-mentioned object, the airframe 1
, A fertilizer hopper H is mounted thereon, and an agitator 30 which is rotated by an agitator shaft 3 is disposed at the bottom of the bore of the fertilizer hopper H. The bottom plate 2 of the fertilizer hopper H has separate shutters 23.
The opening holes 22 whose opening degree is adjusted by 3 are opened in a pair symmetrically on the left and right, and below the bottom plate 2,
Each of the peripheral portions rotatably supports a pair of disk-shaped spinners 4 that rotate under one of the feed holes 22 so as to be symmetrical left and right. Are arranged radially with respect to the center of rotation, and the spinners 4, 4 are driven so that the opposing sides rotate close to each other from front to rear. A large number of blades 41 provided on the upper surfaces of the spinners 4 are assembled so as to have a predetermined receding angle θ with respect to the rotation direction of each of the spinners 4. Characterized in that a vertical chute or funnel-shaped fertilizer collecting member 5 whose front side is open is arranged at the spraying port from which the front side is opened, and is detachably mounted on the body frame 1 and supported. Raising a plate-type fertilizer spreader It is.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A counter-rotating disc-type fertilizer spreader A according to the present invention is fixedly mounted with a polygonal conical or funnel-shaped fertilizer hopper H which is inverted on a body frame 1 and has a bore formed therein. At the bottom, an agitator shaft 3 erected from a gear case G arranged below the bottom plate 2 of the fertilizer hopper H and fixedly mounted on the body frame 1 is rotatably inserted through the center of the bottom plate 2. The agitator 30 is attached to the upper end of the base plate 2 and arc-shaped shutter holes 20 are formed in the periphery of the bottom plate 2 so that the agitator shaft 3 is symmetrical with respect to the left and right. On the lower surface side of the bottom plate 2, the body frame 1
The feed-out hole 22 which is formed around the fulcrum pin 21 provided at the center and formed by the overlap ratio with the shutter hole 20
The shutters 23 for adjusting the opening of the shutter 22 are provided, and the rods 24 for opening and closing the shutter are connected to the shutters 23.

Further, between the upper surface of the gear case G and the lower surface of the bottom plate 2 of the fertilizer hopper H, disk-shaped spinners 4 are disposed so as to be symmetrically paired left and right with the agitator shaft 3 as a symmetric axis. , Their spinner shafts 40
Is driven by the input shaft S through the transmission mechanism in the gear case G so that the input shaft S and the input shaft S rotate in opposite directions as indicated by arrows a and b in FIG. The configuration may be the same as that described above.

However, the wing plates 41 provided on the upper surfaces of the pair of disk-shaped spinners 4 on the left and right sides are provided with a mounting seat plate 41a which bends in the horizontal direction from the lower edge thereof and abuts against the upper surfaces of the spinners 4. At the time of being fixed by the connecting pins 42 and 43 and being radially disposed about the spinner shaft 40, the connecting pin 42 provided on the inner end side of the mounting seat plate 41 a is fixedly connected to the spinner 4. The connecting pin 43 provided on the outer end side of the mounting seat plate 41a can be freely inserted into and removed from the spinner 4, and by replacing it,
The angle of the wing plate 41 rising from the mounting seat plate 41 a with respect to the radial direction about the spinner shaft 40 as the mounting seat plate 41 a freely rotates along the circumferential direction of the spinner 4 around the connection pin 42 on the inner end side. θ is changed as desired.

The spinner 4 has a mounting seat plate 41.
a on the rotation locus of the outer end side connection pin 43 when the outer side a is rotated about the inner end side connection pin 42 as a center.
A desired number of connection holes 44 through which the connection pins 43 are inserted are formed at positions where the connection pins 1 a are retracted in the rotation direction of the spinner 4 with reference to the attitude along the radial direction about the center of the spinner shaft 40. By inserting the connecting pin 43 into a desired connecting hole 44 selected from among the connecting pins 43 and tightening, the wing plates 41 integrally or integrally connected to the mounting seat plate 41a are positioned at the center of the spinner shaft 40. It is set so as to be mounted on the spinner 4 at a desired angle of receding angle θ with respect to the radiation direction.

In the body frame 1, a part where the pair of spinners 4, 4 serves as a spray port for receiving and sprinkling the fertilizer M fed from the fertilizer hopper H is provided. The fertilizer collection member 5 that receives the M and collects and flows down is assembled detachably.

The fertilizer collecting member 5 has an inclined guide plate 50 for allowing the received fertilizer to flow down as a flow of a desired width.
The fertilizer 50 is provided so that the width of the fertilizer flowing down by adjusting the inclination angle thereof can be adjusted as desired, so that the adjustment of the spreading width of the fertilizer can be performed as desired.

The fertilizer collecting member 5 provided on the fertilizer application port side of the body frame 1 has a wing plate 41... Provided on the upper surface of the spinner 4 at a position rearward in the rotational direction with respect to the radial direction about the spinner shafts 40. Is provided with a sweepback angle θ on the side, the spreading width of the fertilizer sprinkled by being spun out from the spinners 4 becomes narrower. The left and right widths of the fertilizer collection member 5 do not need to be so wide.

[0017]

Next, an embodiment will be described in detail with reference to the drawings. In the drawings, the same reference numerals are used for components having the same effects as those of the conventional means.

FIG. 6 is a perspective view of the main part of the opposed rotating disk type fertilizer spreader A according to the present invention.

In FIG. 1, reference numeral 1 denotes an airframe, which is formed in a lateral channel shape open at the rear (left side in the figure) and at both left and right sides. The body frame 1 is configured to be supported by a body connected by a coupler such as a three-point connecting hitch on the rear side of a towing vehicle such as a tractor, and the body and the body frame 1 are supported by the body frame. These components are omitted from the drawings.

H is an inverted polygonal pyramid-shaped fertilizer hopper, which is indicated by a chain line in FIG.

Reference numeral 2 denotes a bottom plate of the fertilizer hopper H, which is formed in a disk shape and fixedly mounted in a state fitted in a through hole formed in the upper plate portion 10 of the body frame 1, and is provided at a central portion thereof. The agitator shaft 3 is rotatably positioned, and an arc-shaped shutter hole 20 is formed in a peripheral portion so as to be symmetrically paired left and right with the agitator shaft 3 as a symmetric axis.

Reference numerals 23, 23 denote shutters combined with the shutter holes 20, 20, which are rotatably supported on the lower surface side of the upper plate portion 10 of the body frame 1 so as to be rotatable back and forth around the fulcrum pins 21, 21. By sliding along the lower surfaces of the shutter holes 20, the opening degrees of the feed holes 22 formed at the open portions of the shutter holes 20 are changed as desired.

Reference numerals 24 and 24 denote rods connected to the shutters 23 so as to rotate the shutters. Although not shown in the drawing, the front ends of the rods that extend forward are connected to the driver's seat of the above-described connected vehicle. Is operated by the driver.

G is a gear case formed in a flat box shape.
It is supported in the lumen of the above-mentioned body frame 1 formed in the shape of a lateral channel, and a transmission mechanism for conducting the input shaft S protruding forward is stored therein. The agitator shaft 3 described above is rotatably supported at the center so as to be driven and rotated by being transmitted to the transmission mechanism.

As shown in FIG. 7, the agitator shaft 3 is provided on both left and right sides of the upper surface of the gear case G.
Spinner shafts 40 are pivotally supported so as to be symmetrically paired on the left and right, respectively, with disk-shaped spinners 4 attached thereto.

The spinner shafts 40, 40 are driven and rotated by being transmitted to a transmission mechanism in the gear case G. The direction of rotation is as shown by the thick arrows a and b in FIG. 4 and 4 are set so that the adjacent opposing peripheral edges respectively rotate from front to back. Further, the agitator shaft 3 is set so as to rotate in the direction shown by the thick arrow c in the figure, whereby the fertilizer hopper H as shown in FIG.
The agitator 30 provided at the upper end rising through the center of the bottom plate 2 rotates around the bottom in the fertilizer hopper H.

The wing plates 41 provided on the upper surface of the spinners 4 have flat mounting seat plates 41a formed along the upper surface of the spinners 4 continuously on the lower edge thereof. The mounting seat plate 41a is formed in an angle as a whole, and the mounting seat plate 41a is mounted on the agitator shaft 40 as shown in FIG.
It is arranged on the upper surface of the spinner 4 radially at the center, and the inner side closer to the center of the spinner 4 and the outer end side closer to the periphery are connected to the spinner 4 by connecting pins 42 and 43, but the mounting is performed. The connection pin 43 on the outer end side is removably attached to a connection hole 44 formed in the spinner 4, and the connection pin 43 on the outer end side is the center of the connection pin 42 on the inner end side. The wing plates 41 are inserted into and connected to the connection holes 44 formed in a portion located rearward with respect to the rotation direction of the spinner 4 on the rotation trajectory defined by the rotation of the plate 41a. It is configured to be installed in a state having a predetermined receding angle θ with respect to the radiation direction centered on the spinner axis 40.

The fertilizer collection member 5 includes the pair of spinners 4 described above.
4 is a feed hole 22 opened in the bottom plate 2 of the fertilizer hopper H.
When the fertilizer M fed out from 22 is received on the upper surface of the peripheral portion on the opposite side and is spun out from the spraying port on the rear side of the body frame 1 by centrifugal force and the drag of the wing plate 41, the fertilizer M ... The stays 7.7 are attached to and detached from the body frame 1 by the set bolts 70 when the blades 41 of the spinners 4 are provided with the sweepback angle θ. Attach by freely assembling.

The fertilizer collection member 5 is formed in a vertical chute or funnel shape with the front side facing the spray port formed on the rear side of the body frame 1 open, and the lower half thereof has:
A pair of tilt guide plates 50, 50, which rotate left and right around the fulcrum shafts 51 to change the tilt angle, are supported in a pair on the left and right, and are provided on the lower ends of the rear wall portions 50a, 50a on the left and right. The connecting holes 52 selected from the connecting holes 52 provided in series in the direction are overlapped with the connecting holes 53 provided on both left and right sides at the lower end side of the rear wall 5 a of the fertilizer collection member 5. hand,
By inserting and fixing the connecting pins 54 to them, the spreading width W of the fertilizer formed in the opposing gap between the lower edges of the pair of inclined guide plates 50 can be adjusted as desired.

FIG. 12 shows the connecting holes 52 on the inner end side of the connecting holes 52 provided in the lower edge of the rear wall portions 50a of the left and right inclined guide plates 50 in the left-right direction. When,
When the sprinkling width W is widened by inserting the connecting pins 54 into the connecting holes 53 provided on the left and right sides on the lower end side of the rear wall 5a of the fertilizer collecting member 5 and tightening them. FIG.

FIG. 11 shows left and right inclined guide plates 50.
Of the connecting holes 52 provided at the lower end of the connecting member 50, and connecting holes 53 formed at both left and right ends of the rear wall 5a of the fertilizer collection member 5. FIG. 9 is an explanatory diagram in a case where the spray width W is narrowed by superposing the components and inserting and fastening the connecting pins 54 to each other.

FIG. 13 shows left and right inclined guide plates 50.
A series of connecting holes 52 provided at the lower end edges of the rear wall portions 50a are formed in elongate holes 55 along an imaginary circle centered on the fulcrum shafts 51. Connection holes 53 formed at the left and right ends of the rear wall 5a of the fertilizer member 5
53, the connecting pins 54 are inserted through the connecting pins 54 so that they can be fastened by screws, and the overlapping position of the elongated holes 55 with respect to the connecting holes 52 is set as desired.
FIG. 10 is an explanatory view of another embodiment in which a spraying width can be set as desired by tightening 4 and 54.

Next, the operation will be described. Generally, in a counter-rotating disc-type fertilizer spreader, as shown in FIG.
The fertilizer M in the inside passes through the supply holes 22 and 22 by the stirring action of the agitator 30 and rotates the spinner 4.
4, and the centrifugal force of the spinners 4 and the drag of the wing plates 41.
It has the effect of being thrown backward in the traveling direction with θ1, but under this same condition, as shown in FIG.
1... In the opposite rotation directions a of the spinners 4.
When the fertilizer M is sprayed in a state where the fertilizer M is fixed to the retreat position at a constant retreat angle θ with respect to the b and b, the throw angles θ2 and θ2 from the respective spinners 4 and 4
It is widely known that is formed smaller than the throw angle θ1 · θ1 in FIG. 8 and the spreading width of the fertilizer M in FIG. 9 can be made smaller than the spreading width of the fertilizer M in FIG.

The present invention has been made by paying attention to the characteristics described above. In the opposed rotating disk type fertilizer spreader having the structure described with reference to FIGS. 6 and 7, FIG.
Indicates the spraying action of the fertilizer M in a state in which the blades 41 are fixed to the spinners 4 at positions where the sweepback angles θ and θ are respectively set in the rotation directions a and b.

The fertilizer M in the fertilizer hopper H is agitator 3
0, falls on the rotating spinners 4.4 via the feeding holes 22 and 22, respectively, and by the centrifugal force due to the rotation and the drag of the wing plates 41. When the overlapping portion at the center is subtracted at the scattering angles θ2 and θ2, the dispersion angle θ3 is formed as a whole and the particles are scattered rearward, but the front side mounted on the rear side of the scatter opening of the body frame 1 is open. Jumps into the vertical chute-shaped or funnel-shaped fertilizer collecting member 5, collides with the inner wall surface thereof, stalls, flows downward and flows down, and flows down.
Falls along the inner wall surface of the substantially funnel-shaped strip dispersing device f composed of the rear wall 5a and the left and right inclined guide plates 50, 50 and is formed between the lower end edges of the left and right inclined guide plates 50, 50. It can be sprayed on the ground with a spray width substantially equal to the minimum opening width W4.

Next, in FIG. 11 and FIG. 12, the left and right inclined guide plates
FIG.
12 to the maximum opening width W5 in FIG. 12, the rear wall portions 50a and 50 of the left and right inclined guide plates 50 and 50 are extended.
The connection holes 53 on the inner end side of the connection holes 53 provided in series on the lower edge of the a are connected to the left and right ends of the rear wall 5a of the fertilizer collection member 5. According to 52,
When fixed by the connecting pins 54, the fertilizer M sprayed rearward at the scattering angle θ3 in FIG. 10 collides with the inner wall surface of the fertilizer collection member 5, becomes stall, and flows downward. It falls along the inner wall surface of the spraying device f, and can be sprayed on the ground with a spraying width substantially equal to the maximum opening width W5 below.

Accordingly, the lower opening of the spreading device f can be adjusted stepwise from the minimum opening width W4 to the maximum opening width W5, and the spreading width of the spreading device f can be adjusted within an arbitrary range. .

Also, the set bolts 70
The fertilizer collecting member 5 can be easily removed from the fertilizer spreader A by removing the fertilizer spreader A from the fertilizer spreader A by removing the fertilizer spreader A from the fertilizer spreader A. Sweep angle θ with respect to rotation directions a and b
If it is returned to a position where no fertilizer is present and re-fixed with the connecting pins 43, the original fertilizer M can be spread over a wide area, so that this conversion can be easily performed.

[0039]

As described above, the counter-rotating disc type fertilizer spreader according to the present invention receives the feed holes 22 of the fertilizer hopper H by rotating counterclockwise in parallel on the left and right sides. The wing plate 41 provided on the upper surface of each of the pair of spinners 4 on the left and right to be sprayed and sprayed to the rear of.
To the radial direction about the spinner axis 40, and set a state in which a receding angle θ is provided in the rotation direction of the spinner 4 so that the scattering angle θ of the fertilizer M to be spun out is as shown in FIG. A narrow chute or funnel-shaped fertilizer collecting member 5 whose front side is open is attached to the spray port of the body frame 1 as shown in FIG.
The fertilizer M spouted from the fertilizer collection member 4 is received by the fertilizer collection member 5, collected and dispersed as a flow flowing downward from the lower end of the fertilizer collection member 5 to the field.
The fertilizer M can be sprayed with the opening width at the lower end of.

When the opening width of the lower end of the fertilizer collection member 5 is adjustable, the fertilizer can be sprayed with a desired spray width.

Then, the fertilizer collection member 5 attached to the body frame 1 is removed, and the wing plate 41 provided on the upper surface side of the spinners 4 is provided.
Is changed to a position along the radial direction about the spinner shafts 40, and the fertilizer is sprayed, so that the spread can be performed with the spread width spread.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a conventional opposed rotating disk type fertilizer spreader.

FIG. 2 is a plan view of a main part of the fertilizer spreader.

FIG. 3 is a distribution diagram of fertilizer sprayed by the fertilizer sprayer.

FIG. 4 is an explanatory diagram of a distribution state of fertilizer to be sprayed when a row-like spray is required according to conditions for planting and planting in a field.

FIG. 5 is an explanatory diagram of a fertilizer application state required in long cultivation.

FIG. 6 is a perspective view of a main part of the opposed rotating disk type fertilizer spreader according to the present invention.

FIG. 7 is a plan view of a main part of the fertilizer spreader.

FIG. 8 is an explanatory view of a fertilizer spraying state of a pair of spinners rotating opposite to each other in the fertilizer sprayer of the present invention.

FIG. 9 is an explanatory view of a fertilizer spraying state when a vane provided on the upper surface of a pair of spinners of the fertilizer spreader of the present invention is provided with a receding angle.

FIG. 10 is a partially broken plan view of a main part of the fertilizer spreader in a state where the fertilizer collecting member is assembled in the same state as above.

FIG. 11 is a rear view of the fertilizer sprayer in a state where the spray width of the main part of the fertilizer sprayer is narrowed and partially broken.

FIG. 12 is a rear view of the essential part of the fertilizer spreader, with the spray width of the essential part of the fertilizer spreader enlarged, partially broken away.

FIG. 13 is a rear view, partially broken away, of another embodiment of the main part of the fertilizer spreader;

[Explanation of symbols]

A: Fertilizer spreader, G: Gear case, M: Fertilizer, H: Fertilizer hopper, D: Groove depth, S: Input shaft, W: Spreading width, f:
Spray device, e: center line, θ: angle, 1: body frame, 10
... Upper plate portion, 11 ... Lower plate portion, 2 ... Bottom plate, 20 ... Shutter hole, 21 ... Support pin, 22 ... Feeding hole, 23 ... Shutter, 24 ... Rod, 3 ... Agitator shaft, 30 ... Agitator, 4 ... Spinner , 40: Spinner shaft, 41a: Mounting seat plate, 42, 43: Connection pin, 44: Connection hole, 5: Fertilizer collecting member, 5a: Rear wall, 50: Incline guide plate wall, 50a: Rear wall portion, 51: Support point Shafts, 52 and 53: connecting holes, 54: connecting pins, 55: elongated holes, 6: spinner cover, 7: stays, 70: set bolts.

Claims (3)

[Claims] 1. A fertilizer hopper H is mounted on a body frame 1,
An agitator 30 which is rotated by an agitator shaft 3 is disposed at the bottom of the inner cavity of the bore, and the bottom plate 2 of the fertilizer hopper H is provided with feed holes 22/22 whose opening is adjusted by respective shutters 23/23. Established symmetrically on the left and right,
Below the bottom plate 2, each of the peripheral portions rotatably supports a pair of disk-shaped spinners 4, which rotate under one of the feed holes 22, so as to be symmetrical left and right. A large number of wing plates 41 are radially arranged on the upper surface of the rotor and are rotated radially with respect to the center of rotation, and the spinners 4 are driven so that the opposing sides thereof rotate from front to rear. Provided on the upper surfaces of the pair of spinners 4, a plurality of wing plates 41 are provided with a predetermined sweepback angle θ with respect to the rotation direction of each of the spinners 4, 4.
And the spinners 4
However, a vertical chute-shaped or funnel-shaped fertilizer collection member 5 having an open front side is arranged at a spray port for sprinkling the fertilizer M, and is detachably mounted on the body frame 1 and supported. Rotating disc type fertilizer spreader. 2. A fertilizer hopper H is mounted on the body frame 1,
An agitator 30 which is rotated by an agitator shaft 3 is disposed at the bottom of the inner cavity of the bore, and the bottom plate 2 of the fertilizer hopper H is provided with feed holes 22/22 whose opening is adjusted by respective shutters 23/23. Established symmetrically on the left and right,
Below the bottom plate 2, each of the peripheral portions rotatably supports a pair of disk-shaped spinners 4, which rotate under one of the feed holes 22, so as to be symmetrical left and right. A large number of wing plates 41 are radially arranged on the upper surface of the rotor and are rotated radially with respect to the center of rotation, and the spinners 4 are driven so that the opposing sides thereof rotate from front to rear. Provided on the upper surfaces of the pair of spinners 4, a plurality of wing plates 41 are provided with a predetermined sweepback angle θ with respect to the rotation direction of each of the spinners 4, 4.
And the spinners 4
However, a vertical chute-shaped or funnel-shaped fertilizer collecting member 5 having an open front side is arranged at a spray port for sprinkling the fertilizer M, and is detachably attached to the body frame 1 to be supported. 5
The rear wall 5a and the left and right inclined guide plates 50
50. A counter-rotating disc-type fertilizer spreader, comprising: 3. The counter-rotating disc-type fertilizer spreader according to claim 2, wherein the inclination angles of the left and right tilt guide plates 50 of the strip spraying device f mounted on the fertilizer collecting member 5 can be adjusted.