JPH08130951A - Granule applicator - Google Patents

Abstract

PURPOSE: To provide a device to recover collectively granules left in plural hoppers. CONSTITUTION: Each of plural hoppers 19 holding granules is provided with a delivery port 21c through which granules delivered by a relevant roller fall and an openable discharge port through which granules left in the hoppers 19 are extracted; the delivery port 21c is furnished with air feed pipes 46 in parallel, through which granules are applied to the field, and the discharge port with recovery pipes 49 in series, through which granules are recovered. Air pressurized by a blower 18 is designed to reach the respective air feed pipes 46 from an air chamber 17 and then selectively fed to one end of the recovery pipes 49.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a dusting device for dusting granular or powdered fertilizers or seeds in a field.

[0002]

2. Description of the Related Art An apparatus for spraying powder and granules comprises a plurality of hoppers containing the powder and granules, and the powder and granules in each hopper are fed by respective feeding rollers to be sprayed on a field. It is made of. Further, each hopper is provided with a discharge port, and when the spraying work is completed, the powder or granular material remaining in the hopper is collected from these discharge ports.

[0003]

Therefore, in the conventional apparatus, when collecting the remaining powdery particles, a container was placed under each discharge port and the collecting operation was individually performed. The present invention intends to improve this and to collect the powder particles in a plurality of hoppers collectively.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a plurality of hoppers 19 containing powder particles, each of which is provided with a feeding roller 22 for dropping the powder particles. The outlet 21c and a discharge port 52a that can be opened and closed to take out the powder or granules remaining in the hopper 19 are provided, and a blower pipe 46 for spraying the powder or granules to the field is provided in parallel at each of the delivery ports 21c, Each exhaust 52a is provided with a collection pipe 49 for collecting the powder or granular material in series, and the air pressurized by the blower 18 is provided so as to reach each blower pipe 46 from the air chamber 17, and the air is supplied. The device for spraying powder and granules is provided so as to be selectively supplied to one end of the recovery pipe 49.

[0005]

[Function] The powdery or granular material spraying device configured as described above is
The discharge ports 52a are closed, and the air pressurized by the blower 18 is sent from the air chamber 17 to only the blower tubes 46 to perform the dusting operation of the powder and granules. Then
The powder particles in the respective hoppers 19 are quantitatively fed out by the respective feeding rollers 22, and the respective feeding ports 21 are provided.
The air reaches the respective air blow pipes 46 from c, and is widely sprayed from the outlet to the field.

When the above spraying work is completed, the hopper 1
If the granular material remains in the container 9, it is taken out as follows. Open each outlet 52a, blower 1
The air pressurized at 8 is sent to one end of the recovery pipe 49. Then, the granular material remaining in the respective hoppers 19 reaches the inside of the recovery pipe 49 through the respective outlets 52a,
The air flowing in the recovery pipe 49 is sent to the other side,
Collected collectively on the other side of the recovery pipe.

[0007]

As described above, according to the present invention, the powder particles remaining in the plurality of hoppers 19 can be collectively collected at one place.

[0008]

Embodiments of the present invention will be described below. FIG.
As described above, the riding type seedling planting machine is equipped with the fertilizer application device (one type of powdery or granular material spraying device of the present invention) for spraying the granular fertilizer to form the seedling planting device with the fertilizer application device. This seedling planting machine is configured as follows.

A seedling planting device 3 is connected by links 2 and 2 after the traveling vehicle body 1 to form a riding type seedling planting machine. The traveling vehicle body 1 has a pair of left and right front wheels 5 and rear wheels 6 in front of and behind the machine base 4, respectively.
Are arranged and are driven by an engine (not shown) under the seat 7 in the central portion. The seedling planting device 3 includes a gear box 8 in the central portion, a seedling mounting table 9 provided on the gearbox 8 in the forward direction and driven to reciprocate left and right, and a float 10 arranged below the sliding table 9 to slide on a mud surface. And a seedling planting rod 11 which is rotated after the seedling placing base 9 in a circular orbit in the vertical direction to cut off the seedlings on the seedling placing base 9 and to transplant the float 10 to a mud surface on the ground. ing.
In addition, on the seedling placing table 9, four mat-like group seedlings are placed side by side. The float 10 is composed of a center float at the center and side floats on both sides of the center float. The center float is provided on the left and right sides where the seedling planting rods 11 transplant seedlings, and the side floats are respectively Level one of them. The seedling planting rod 11 is a set of two seedlings which are alternately transplanted.
The sets are arranged side by side, forming a four-row plant. Stanchion 12
Extends upward from the rear end of the machine base 4, and the front ends of the links 2 and 2 are rotatably attached thereto by lateral pins. The rear ends of the links 2 and 2 are rotatably attached to the working machine frame 13,
The gear box 8 is attached to the lower portion of the working machine frame 13 so as to swing around the rolling shaft in the front-rear direction.
The tip of the hydraulic cylinder 14 is attached to the machine base 4, and the piston rod 15 projecting from the hydraulic cylinder 14 is connected to the arm 16 of the upper link 2.
The rear end of 2 moves up and down, and the seedling planting device 3 keeps the same posture and moves up and down.

A horizontally long air chamber 17 is fixed to the upper end of the column 12 after the seat 7. The blower 18 is attached to the left end of the air chamber 17 when viewed from the rear, and the motor 18
The rotation of a causes the impeller inside the air blower chamber 18b to rotate and the intake pipe 18c to rotate.
The air sucked from is pressurized and sent into the air chamber 17. As seen in Fig. 2, V
Granular fertilizer is put in a hopper 19 shaped like a letter, a pair of them is joined at the top, and a single lid 20 is openably and closably provided on them. The two sets are arranged side by side, and four hoppers 19 are arranged side by side.

The leftmost hopper 19 (others are the same or symmetrical) will be described below. As shown in FIG. 3, the feeding path 21 having a narrow width extends downward from the center of the hopper 19 when viewed from the rear. A feeding roller 22 is provided in the middle thereof, and both sides of the feeding roller 22 bulge to form a clutch chamber 21a and a groove width adjusting chamber 21b. The wall surface of the groove width adjusting chamber 21b and a single support shaft 23 extend into the feeding path 21, and the feeding roller 22 has a plurality of feeding grooves 22a, 22a ... (FIG. 4) whose left side is open on the cylindrical surface. Are rotatably supported by the support shaft 23. The drive shaft 24 is inserted from the right wall surface of the clutch chamber 21a, and its left end is rotatably supported by the shaft center of the support shaft 23. The clutch 25 having the claw 25a on the left side surface is pushed by the spring 26 on the right side, the claw 25a is engaged with the claw 22b, and the feeding roller 22 rotates counterclockwise in FIG. The shifter 27b is eccentrically projected from the operation shaft 27 rotated by the knob 27a, and the rotation thereof causes the shifter 27b to move left and right. When the shifter 27b engages with the groove 25b on the cylindrical surface of the clutch 25 and moves to the right, the clutch 25 moves to the right against the spring 26 to separate the pawl 25a from the pawl 22b, and to the left, The clutch 25 is moved to the left by a spring 26 so that the claw 25a is engaged with the claw 22b. Spring 2
6, the right side surface of the clutch 25 and the clutch chamber 2
A blade made of rubber or other flexible material between the inner surface of 1a and
A tool 28 is provided to protect the spring 26. That is, if the lower end of the feeding passage 21 is clogged with fertilizer, the overflowed fertilizer may enter the spring 26, which may cause malfunction of the spring 26. However, the above configuration eliminates the possibility.

The gear 29 is screwed into the male screw 23a of the support shaft 23, and when the gear 29 rotates, the gear 29 is moved left and right by the lead of the male screw 23a. A plurality of protrusions 30a, 30a
...... protrudes from the adjusting wheel 30 to the right, and each protrusion 30
.. a, 30a .. engage with the feeding grooves 22a, 22a .. When the right end of the gear 29 is rotatably engaged with the adjusting wheel 30 and the gear 29 moves left and right as described above, the adjusting wheel 30 moves left and right, and the feeding grooves 22a and 22a of the feeding roller 22. The width of ...... expands and contracts so that the amount of fertilizer delivered per unit time can be adjusted.

As shown in FIG. 2, an adjusting shaft 31 is provided laterally behind the feeding passage 21 and is fixed to the wide gear 32,
32 ... meshes with the gears 29, 29 ..., and the handle 3
When the adjusting shaft 31 is turned at 3, the gears 29, 29 ... Rotate to the left and right while rotating. As shown in Figure 1,
A gear box 34 is provided in the middle of the column 12, and after the rotation of the engine is introduced by the transmission shaft 35, it is taken out in two ways, a seedling planting shaft 36 and a fertilizer application shaft 37 (Fig. 2). Figure 2
As shown in FIG. 4, the transmission shaft 38 is laterally supported below the rear of the adjusting shaft 31, and the ratchet 39 at the center of the transmission shaft 38 serves as an abutment.
The arm 39a projects rearward, and the arm 37a of the fertilizer application shaft 37 and this arm 39a are connected by the rod 40.
When the arm 37a turns due to the rotation, the arm 39a swings, and the transmission shaft 38 rotates intermittently.

A single drive shaft 24 drives a pair of payout rollers 22 at both ends as described above. Therefore, a pair of drive shafts 24, 24 are used, the pulleys 41, 41 are fixed to the respective intermediate portions, and the pulleys 42, 42 fixed to the transmission shaft 38 and the pulleys 41, 41 are adjusted. The belts 43, 43 are wound around, and the intermittent rotation of the transmission shaft 38 causes the drive shafts 24, 2 to rotate.
4 has been transmitted. The adjusting band 43 is a synchro belt having a tooth profile on its inner surface, and the cylindrical surfaces of the adjusting wheels 41, 42 are also provided with tooth profiles that engage with this. Further, if the adjusting shaft 31 is arranged within the circle of the adjusting band 43 (FIGS. 4 and 5), the entire configuration becomes simple. The adjusting wheel 41 can be divided as shown in FIG. That is, the drive shaft 24 and the adjusting wheel 41 are divided into left and right parts, and the divided drive shafts 24a, 24a are arranged with their ends separated from each other. In addition, the divided pulleys 41a and 41a are connected to the respective drive shafts 24.
It is provided so as to be slidable in the axial direction with respect to a and 24a.
Then, when the belt 43 is removed from the vehicle 41, the vehicle 4
1a and 41a can be opened to the left and right, and this band 43 can be pulled out from between the drive shafts 24a and 24a, which facilitates maintenance. Further, a roller wheel 44 is provided on the adjusting shaft 31 (FIG. 7) so that the spine of the band 43 contacts the band 4.
3 can be bypassed from the adjusting shaft 31.

As shown in FIG. 4, a brush 45 is provided on the rear side of each feeding roller 22 so that the tips of the brushes come into contact with the cylindrical surface, and scrapes off the fertilizer overflowing from the grooves 22a, 22a. It is like this. This brush 45 can make the upper layer bristles dense and the lower layer bristles coarse. When spraying powder with small particles such as herbicides,
With the conventional brush 45 having coarse flocking, there is a possibility that the powder may pass through between the bristles and may not be evenly distributed, but the above configuration eliminates the possibility.

Four air blow pipes 46, 46, ... Extend from the air chamber 17 to the rear side below the respective feeding paths 21, 21 ,. The lower ends of the feeding passages 21, 21 ... Are narrowed in the front, rear, left and right to form feeding outlets 21c, 21c .. Four groovers 47 are provided on the float 10 (FIG. 1), and the rear ends of the blower pipes 46, 46 ... And the respective groovers 47 are connected by a flexible hose 48. There is.

Therefore, when the fertilizer in the hoppers 19, 19 ... Is fed out by the feeding grooves 22a, 22a ... by the rotation of the feeding rollers 22, 22 ,. It falls from the blower pipes 46, 46 to the inside. Then, this fertilizer is swept away from the air chamber 17 by the wind flowing through the blower pipes 46, 46, ..., And reaches the groovers 47 through the respective hoses 48 and reaches the groovers 47. Are sprayed in the ditch created in the mud.

As shown in FIG. 8, the recovery pipe 49 has a feeding path 21,
21 …… is provided horizontally after the elbow 50 at the right end.
Is connected to the vertical pipe 17a of the air chamber 17. A valve 51 for opening and closing the flow path for the vertical pipe 17a is provided at its inlet, and the lever 51a is rotated to open and close the flow path. The air chamber 17 is preferably made of steel so as to also serve as a mounting member for the hoppers 19, 19, ..., And the recovery pipe 49 is preferably made of plastic to prevent corrosion by fertilizer.

Lower parts of the hoppers 19, 19 ... And the recovery pipe 49
Are connected by the discharge pipes 52, 52 ..., The hoppers 19, 19 ...
The fertilizer remaining in the inside of the exhaust pipes 52, 52 ...
Through the discharge ports 52a, 52a ... At its lower end into the recovery pipe 49 (FIG. 4). Valve 53,
53 are provided on the respective discharge pipes 52, 52, ... And the discharge ports 52a, 52a ... Are opened and closed by rotating the levers 53a, 53a. A slide type valve can be used instead of the butterfly type valve 53 in the figure. Also, a plurality of valves 53, 53 ...
It would be convenient to have both working at the same time.

As shown in FIG. 9, a bag 54 is detachably attached to the left end of the recovery tube 49. The upper half of the bag 54 can be made of mesh 54a so that air can easily escape. That is, when the fertilizer spraying work is completed, the valve 51 opens the passage to supply the air in the air chamber 17 to the right end of the recovery pipe 49, and the valves 53, 53 ... Open the passage to open the respective hoppers 19, 19. ... Pour the fertilizer remaining in the inside into the recovery pipe 49. Then, the fertilizer is blown to the left and flows into the bag 54. This bag 54
To remove the residual fertilizer. At this time, the feeding roll
La 22, 22 ... Has stopped rotating.

The air chamber 17 and the recovery pipe 49 are connected to the discharge port of the blower 18, and the blower 18 is switched by a valve.
The pressurized air discharged from the air chamber 17 or the recovery pipe 4
It can be made to selectively flow to eight. The recovery pipe 49 may be inclined so that the fertilizer outlet is lowered.
The inside of the gear box 34 can be configured as shown in FIG. That is, the gear 35a is integrally provided at the rear end of the transmission shaft 35, and the fertilizer application shaft 37 extends rearward from this. The gear 55 meshes with the gear 35 a, and the tip of the seedling planting shaft 36 is rotatably attached to the gear 55. A fertilizer application clutch 56 is provided at the front end of the fertilizer application shaft 37 so as to slide only in the axial direction, and is pushed forward by a spring 57, and its claw 56a is bitten by the claw 35b of the gear 35a so that the transmission shaft 35 rotates. Three
It is transmitted to 7. Cam 56 on the cylinder surface of fertilizer application clutch 56
b is provided and the end of the pin 58 hits, the fertilizer application clutch 5
6, the claw 56a moves away from the claw 35b, and the rotation of the fertilizer application shaft 37 is stopped. A planting clutch 59 is provided on the front end portion of the seedling planting shaft 36 so as to slide only in the axial direction, and is pushed forward by a spring 60 so that the claw 59a thereof is provided.
Engages with the claw 55a of the gear 55, and the rotation of the transmission shaft 35 reaches the seedling planting device 3 via the seedling planting shaft 36. Cam 5
9b is provided on the cylindrical surface of the planting clutch 59, and the pin 6
When the tip of 1 hits, the planting clutch 59 moves backward against the spring 60, the claw 59a separates from the claw 55a, and the seedling planting shaft 36
Is designed to stop rotating.

The above-mentioned pins 58 and 61 are connected to the lever 62 as shown in FIG. That is, the lever 62 is fixed to the interlocking shaft 63, and the interlocking shaft 63 can be rotated by its operation. The lever 62 has "raise", "fixed",
Five positions of "lowering", "planting" and "fertilization" are provided in this order from upper right to lower left. The planting clutch cam 64 and the fertilizing clutch cam 65 are the interlocking shaft 6
It is fixed at 3. Pins 58 and 61 are connected to the ends of a pair of arms 66 and 67 rotatably provided around the shaft, and rollers 68 and 69 in the middle thereof are provided with the clutch cam 6 with a plant.
4 and the fertilizer clutch cam 65, and the pins 58 and 61 are moved up and down by operating the lever 62. Then, when the lever 62 is positioned at the “up” position, the oil discharged by the pump (not shown) is sent to the hydraulic cylinder 14 and the seedling planting device 3 rises. Lever
When 62 is placed in the “fixed” position, the valve (not shown) between the pump and the hydraulic cylinder 14 becomes neutral, the oil is trapped in the hydraulic cylinder 14, and the height of the seedling planting device 3 is increased. Kept in position. When the lever 62 is placed in the “down” position, the oil in the hydraulic cylinder 14 returns to the tank and the seedling planting device 3 descends. The descent is stopped when the float 10 contacts the mud surface. When the lever 62 is positioned at “planting”, the pin 61 moves away from the cam 59b, the seedling planting shaft 36 rotates, and the seedling planting device 3 operates. When the lever 62 is placed in the “fertilizer” position, the pin 61 moves to the cam 5
At the same time as it is separated from 9b, the pin 58 is separated from the cam 56b, the fertilizer application shaft 37 is rotated, and the supply rollers 22, 22, ...

[Brief description of drawings]

FIG. 1 is a side view of a seedling planting machine with a fertilizer application apparatus according to the present invention.

FIG. 2 is an enlarged rear view showing a transmission device of a part thereof.

FIG. 3 is an enlarged cutaway rear view of part 1 thereof.

FIG. 4 is a cut side view of a part thereof.

FIG. 5 is a cutaway side view of a part of the transmission device.

FIG. 6 is a cutaway rear view of a part of another transmission device.

FIG. 7: Side view of the cut

FIG. 8 is a rear view of a part of the seedling planting machine with the fertilizer application device.

FIG. 9 is a rear view of the part 1.

FIG. 10 is a cutaway side view of part 1 thereof.

FIG. 11 is a perspective view of the operation part.

[Explanation of symbols]

 17 Air Chamber 18 Blower 19 Hopper 21c Feeding Port 22 Feeding Roller 46 Blower Pipe 49 Recovery Pipe 52a Discharge Port

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Isao Ishida 1 Yakura, Tobe Town, Iyo-gun, Ehime Prefecture Izeki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A feeding port 21c from which the powder particles delivered by a delivery roller 22 fall into each of a plurality of hoppers 19 containing the powder particles, and an opening and closing for taking out the powder particles remaining in the hopper 19. A free discharge port 52a is provided, a blower pipe 46 for spraying the granular material to the field is provided in parallel at each feeding port 21c, and a recovery pipe 49 for collecting the granular material is provided at each discharge 52a. The air provided in series and pressurized by the blower 18 is sent from the air chamber 17 to each blower pipe 4
6 is provided so that the air can be selectively supplied to one end of the recovery pipe 49, and the powder-dispersion device.