JPH09140229A - Grain-scattering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grain-scattering device capable of surely recovering grains left in a grain-storing section. SOLUTION: This grain-scattering device is made up so as to carry grains delivered from a grain-storing section to a scattering port faced to the scattering position of a field through a carrying pipe 24, and so as to charge pressed air for carrying the grains into the carrying pipe with an air blower. Therein, a grain-discharging port 30 for discharging grains left in the grain-storing section 2, a recovery pipe 31 for recovering the grains discharged through the grain- discharging port 30, a recovery shutter 32 for closing or opening the grain- discharging port 30, and an air blow-switching shutter 35 for delivering the pressed air from the blower into the recovery pipe 31 are further disposed. When the air blow-switching shutter 35 is switched to the side for delivering the pressed air from the air blower into the recovery pipe 31, both the shutters are interlocked so as to subsequently open the recovery shutter 35, and when the grains are discharged from the grain-storing section into the recovery pipe 31, the grains are immediately carried with the pressed air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for recovering particulate matter remaining in a granular material storage unit in a particulate matter spraying device for spraying granular material such as fertilizer.

[0002]

2. Description of the Related Art Fertilizer application in which granular fertilizer fed from a fertilizer storage unit is transferred to a spray port facing a spraying position in a field through a transfer pipe, and pressurized air for transferring the fertilizer is blown into the transfer pipe. There is a device.

[0003]

In the fertilizer applicator of this type, if the fertilizer remains in the fertilizer storage section, the fertilizer solidifies and interferes with the next work. The fertilizer to be used is taken out and collected. An object of the present invention is to make it possible to recover this residual fertilizer reliably and easily.

[0004]

In order to solve the above-mentioned problems, the present invention has the following constitution. That is, the particulate matter spraying device according to the present invention transfers the particulate matter delivered from the particulate matter storage unit to the spraying port facing the spraying position in the field through the transport pipe, and the pressurized air for transporting the particulate matter into the transport pipe. In the particulate matter spraying device configured to send in a blower, a particulate matter take-out port for taking out the particulate matter remaining in the particulate matter storage unit, and a recovery pipe for collecting the particulate matter taken out through the particulate matter take-out port A recovery shutter that opens and closes the particulate matter outlet and a blower switching shutter that switches so that the pressurized air from the blower is sent to the collection pipe, and the blower is provided on the side where the compressed air from the blower is sent to the collection pipe. When the switching shutter is switched, both shutters are interlocked so that the recovery shutter opens later than that.

[0005]

Embodiments of the present invention will be described below. 1 to 6 is a fertilizer application device that is used by mounting it on a riding rice transplanter, and is configured to apply fertilizer to the vicinity of the side of each of the four planting lines.

Reference numeral 2 in the figure is a fertilizer storage section (granular material storage section).
Then, granular fertilizer is put in this. The fertilizer storage unit 2 of the illustrated example is integrally formed with two sections, and an openable / closable lid 2a is attached to the upper part. Below the fertilizer storage unit 2, there is provided a feeding unit 3 that feeds the fertilizer in the fertilizer storage unit downward by a fixed amount.

The feeding unit 3 has a feeding roll 5 built therein. The feeding roll 5 is a combination of a groove roll 5a having a plurality of axial grooves formed on the outer peripheral portion thereof, and a claw roll 5b having a claw-shaped projection slidably engaged with the groove of the groove roll. And the groove portions where the claw-shaped projections are not engaged become the fertilizer holding recesses 6, .... The feeding roll 5 is rotatably supported on the outer periphery of a roll support cylinder 7 provided in the left-right direction, and one end of which is fitted in the roll support cylinder 7 so as to rotate freely. It is adapted to be transmitted to the feeding roll 5 via 9. The fertilizer application clutch 9 can be turned on and off by a clutch pin 9a. When the feeding roll 5 rotates in the direction of the arrow in FIG. 1, the fertilizer in the fertilizer storage unit 2 is conveyed by the recesses 6, ... And is fed downward. The claw roll 5b is restrained from moving in the axial direction by the opening adjustment gear 11. This opening adjustment gear 11
Is screwed into the threaded portion 7 a of the roll support cylinder 7 and meshes with the pinion 13 attached to the opening adjustment shaft 12. Therefore, the opening adjusting hand 1 is used to open the opening adjusting shaft 1.
When 2 is rotated, the opening adjusting gear 11 and the claw roll 5
b moves in the axial direction, whereby the volume of the recesses 6, ... Is changed, and the feed amount of fertilizer is adjusted.

The feeding section 3 is driven by power from the rice transplanter body. That is, the reciprocating motion of the fertilizer application rod 15 is transmitted to the fertilizer application shaft 17 via the one-way clutch 16, and the intermittent rotation of the fertilizer application shaft 17 is further transmitted to the transmission belt 18.
Is transmitted to the feeding shaft 8 via. Figure 6 shows fertilizer drive shaft 17
FIG. 17A is a diagram showing a transmission section from the feeding shaft 8 to the feeding shaft 8;
Is a fertilizer drive shaft side pulley, 8a is a payout shaft side pulley, 1
2a is a tension pulley. As shown in the figure, since the tension pulley 12a is attached to the opening adjusting shaft 12, it is not necessary to separately provide a shaft for attaching the tension pulley 12a, and the structure is simple.

A partition plate 20 for preventing free fall of the fertilizer in the fertilizer storage unit 2 is provided in the space between the front wall surface on which the recesses 6, ...
Also, a brush 21 that is held in the concave portion 6 and smoothes the surface portion of the fertilizer being conveyed downward is detachably attached. Since a seal rubber 20a is attached to the tip of the partition plate 20 and there is no gap between the partition roll 20 and the feeding roll 5, fertilizer is bitten between the two and pulverized to prevent fertilizer clogging. Inconvenience is prevented. Further, since the feeding roll 5 is in contact with the flexible seal rubber 20a, abrasion of the feeding roll 5 is prevented. Since the seal rubber 20a is attached to the partition plate 20 in an insertable manner, it can be easily replaced when the seal rubber 20a is worn out. The seal rubber 20a may be integrally formed with the partition plate 20 by baking.

A connecting pipe 23 is formed integrally with the lower portion of the feeding portion 3. The fertilizer transfer pipe 24 is connected to the rear end of the connecting pipe 23. On the other hand, the connecting pipe 23 of each line
The front end part of is inserted and connected to the side surface of the air chamber 25 provided in the left-right direction. One end of the air chamber 25 is connected to a blower 27 via a connecting pipe 26.
The pressurized air from is sent to the connecting pipe 23 and fertilizer transfer pipe 24 of each line via the air chamber 25, and the fertilizer fed from the feeding unit 3 is blown with wind pressure to apply fertilizer at the tip of the connecting pipe 23 (spraying port). ).

A cylindrical fertilizer outlet (granular substance outlet) 30 for taking out the fertilizer remaining in the fertilizer storage unit 2 is provided on the upper rear side wall surface of the feeding unit 3 obliquely downward. . Furthermore, a recovery pipe 31 in the left-right direction is provided on the axis of the fertilizer outlet 30, and the lower end of the fertilizer outlet 30 is connected to the wall surface of the recovery pipe 31 diagonally above and above.
At the lower end of the fertilizer outlet 30, the upper part of the recovery pipe 31 in the fertilizer recovery direction is formed as a spherical windbreak hood 30a, and the lower part in the fertilizer recovery direction is open.
A spherical recovery shutter 32 that can be opened and closed by an opening / closing mechanism described later is attached to this opening. The hood 30a and the collection shutter 32 have a hemispherical shape. One end of the recovery pipe 31 is connected to the blower 27 via the joint pipe 26. The other end serves as a fertilizer recovery port, and a recovery lid 33 that can be opened and closed is attached thereto.

As shown in FIG. 5, the connecting pipe 26 is bifurcated, and the air chamber 25 is connected to one connection port 26a and the recovery pipe 31 is connected to the other connection port 26b. A state in which the pressurized air from the blower 27 is blown into the air chamber 25 and the recovery pipe 31 are provided at the branch portion.
A blower switching shutter 35 that switches to a state in which the air is blown into is provided. The blower switching shutter 35 has a rotating shaft 36.
Is used as a support shaft, and the rotation direction of the rotation shaft 36 is switched by rotating the rotation shaft 36 with a ventilation switching lever 37 provided outside. Sealing members 35a and 35b are attached to the portions where the blower switching shutter 35 comes into contact with the wall surface of the joint pipe 26. The blower 27 is driven by a motor 38 (shown in FIGS. 7 and 8), and the motor 38 has a blower ON / OFF switch 39.
ON / OFF can be switched with.

The recovery shutter 32 is attached to two parallel recovery shutter opening / closing shafts 40, 40 provided in the recovery pipe 31 by mounting plates 41, 41.
The connecting portion 40a connecting the 0 and 40 is the blower switching shutter 35.
The rod 41 is loosely fitted in the elongated hole 41a.
The collection shutter 32 is in a closed state when the blower switching shutter 35 is on the side for blowing air to the air chamber 25, and when the blower switching shutter 35 is switched to the side for blowing the collection pipe 31, the open / close shafts 40, 40 are pulled. The recovery shutter 32 is opened by being opened. At that time, the opening / closing shaft 4 is the length of the long hole 41a
Since the timing of pulling 0 and 40 is delayed, the recovery pipe 3
The collection shutter 32 opens after some time has elapsed since the start of blowing air to the first position. In addition, as in the present embodiment, the collection shutter 32 is mechanically provided with a blower switching shutter 35.
Instead of interlocking with, the motor may be interlocked by electrical control.

The fertilizer application apparatus 1 having the above-mentioned construction is used by mounting it on the riding rice transplanter 50 as shown in FIGS. In the figure, reference numeral 51 denotes a passenger traveling vehicle body, 52 denotes a planting portion, and 53.
Is an elevating link device that supports the planting part so that it can be raised and lowered with respect to the traveling vehicle body. Further, 51a is a front wheel, 51b is a rear wheel,
51c is a pilot seat, 51d is a floor step, 51e is a steering wheel, 51f is an engine, 52a is a seedling stand, 52
b is a seedling planting device and 52c is a float.

In the fertilizer application apparatus 1, an air chamber 25 is horizontally fixed on the upper rear side of the traveling vehicle body 51, and the fertilizer storage sections 2, ...
... is assembled. The fertilizer storage sections 2, ... Are integrally formed by two sections, and the feeding rolls 5 ,.
The rotation is transmitted from the common feeding shafts 8 in units of two lines. The fertilizer transfer port (spray port) at the tip of the fertilizer transfer pipe 24, ... Connected to the connection pipe 23 ,.
Fertilizer guide 55 attached to the float 52c, ...
Has been inserted. Further, the blower 27 has an air chamber 25.
To the joint pipe 26 integrally fixed to the left end of the
Installed with. The intake port of the intake pipe 56 that takes in air to the blower 27 is located at the center of the rear part of the traveling vehicle body 51, and sucks the warm air warmed by the engine 51f. Warm air to the fertilizer transfer pipe 24,
By blowing the air inside, the fertilizer attached to the inner wall surfaces of the fertilizer transfer pipes 24 is prevented from solidifying.

A herbicide spraying device 60 is also attached to the rice transplanter 50. The herbicide spraying device 60 is provided with a herbicide tank 61 for storing a liquid herbicide in a central portion of the left and right located between the fertilizer storage sections 2, ... The herbicide therein is guided through a flexible herbicide transfer pipe 62 to a spray nozzle 63 provided at the center of the rear right and left of the planting section 52. The spray nozzle 63 is attached to the nozzle mounting frame 64,
The field scene is behind the seedling planting position. A replenishing lid 61 a is attached to the upper part of the herbicide tank 61. An operation panel 65 is attached to the front surface of the herbicide tank 61, and the operation panel 65 has a feeding ON / OF
An F switch 65a and a spray amount adjustment dial 65b are provided. As shown in FIG. 9, the herbicide in the herbicide tank 61 is intermittently fed to the herbicide transfer pipe 62, and the amount of herbicide sprayed is adjusted by changing the feeding time T. It has become.

When the planting part 52, the fertilizer application device 1 and the herbicide spraying device 60 are driven to advance the traveling vehicle body 51, the seedlings on the seedling table 52a are planted by the seedling planting devices 52b, ... At the same time, the fertilizer in the fertilizer storage section 2, ... Delivered by the feeding section 3, ... Is sprayed from the fertilization guide 55 ,. The herbicide therein is sprayed through the herbicide transfer pipe 62 from the spraying nozzle 63 to a spraying position located in the rear of the left and right center of the machine body.

When the fertilizer in the fertilizer storage section 2, ... Or the herbicide in the herbicide tank 61 is exhausted or the remaining amount is low, the lids 2a and 61a are opened to replenish the fertilizer or herbicide. The fertilizer storage sections 2, ... And the herbicide tank 61 are arranged behind the cockpit 51c with their front and rear positions aligned, so that the replenishment work can be easily performed from the floor step 51d. Further, replenishment work is easier on both sides of the cockpit 51c than directly behind it. Therefore, fertilizer storage sections 2, ... By providing the tank 61 in the central portion on the left and right, it is particularly easy to replenish fertilizer which is frequently replenished.

When the work is completed, the fertilizer storage unit 2, ...
In order to prevent the fertilizer from solidifying in the fertilizer, the fertilizer in the fertilizer storage section 2 is collected. When collecting, the collection lid 3
3 is opened, and the blower switch lever 37 is switched to the collecting pipe blower side. Then, the blower switching shutter 35 is switched so that the pressurized air from the blower 27 is blown into the collecting pipe 31, and after a lapse of some time, the collecting shutters 32, ...
Opens. Fertilizer storage section 2, ...
1 and the fertilizer is collected by compressed air in the recovery pipe 3
It is carried inside the unit 1 and discharged from the recovery port. Since the collection shutters 32, ... Are opened after the start of air blowing,
The fertilizer dropped from the fertilizer storage section 2, ... into the recovery pipe 31 is immediately carried by pressurized air. Therefore, the recovery pipe 31
The clogging of fertilizer inside is prevented. Recovery shutter 32, ...
When the and the blower switching shutter 35 are operated at the same time, the blower is started with the fertilizer dropped from the fertilizer storage section 2, ...
The fertilizer may not be delivered properly and the fertilizer may be clogged. Since the windproof hood 30a is provided at the lower end portion of the fertilizer outlet 30, ..., Compressed air is blown into the fertilizer outlet 30 ,. There is no.

FIG. 10 shows a different configuration for recovering residual fertilizer. In the fertilizer applicator 1 ′, a fertilizer storage unit 2, ... And a feeding unit 3, ... Are rotatably provided around a rotary shaft 70 as a fulcrum, and a gear 71 attached to the rotary shaft 70 and a rotary shaft 70 are rotated. Gear 7 mounted on a handle shaft 72 provided parallel to the shaft 70
It meshes with 3. As a result, by turning the handle 72a, the fertilizer storage sections 2, ... And the feeding section 3 ,.
The residual fertilizer inside can be taken out. The removed residual fertilizer is received by the recovery gutter 74 and is recovered at one end of the recovery gutter 74.

[0021]

As described above, in the granular material spraying apparatus according to the present invention, the granular material remaining in the storage section taken out from the granular material take-out port to the collecting tube is conveyed to the collecting side of the collecting tube by the pressurized air. In this way, since the particulate matter is taken out of the collection tube after the start of blowing air to the collection tube, the clogging of the particulate matter in the collection tube is prevented,
It became possible to reliably collect the particulate matter remaining in the storage section.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a fertilizer application device.

FIG. 2 is a front view of a fertilizer application device.

FIG. 3 is a rear view of the fertilizer application device.

FIG. 4 is a front sectional view of a feeding unit.

FIG. 5 is a cross-sectional view showing a blower switching mechanism and a collection shutter opening / closing mechanism.

FIG. 6 is a view showing a transmission section from a fertilizer application shaft to a feeding shaft.

FIG. 7 is a side view of a riding rice transplanter equipped with a fertilizer application device and a weeding spraying device.

FIG. 8 is a plan view of a riding rice transplanter equipped with a fertilizer application device and a weeding spraying device.

FIG. 9 is a diagram showing a timing of spraying a herbicide.

FIG. 10 is a side view of a fertilizer application device having a different configuration.

[Explanation of symbols]

 1 Fertilizer application device 2 Fertilizer storage unit (particulate matter storage unit) 3 Feeding unit 5 Feeding roll 23 Connection pipe 24 Transfer pipe 25 Air chamber 27 Blower 30 Fertilizer outlet (granular substance outlet) 31 Recovery pipe 32 Recovery shutter 35 Blower switching shutter 37 Blower switching lever 50 Riding rice transplanter 51 Riding vehicle body 53 Planting part 60 Herbicide spraying device 61 Herbicide tank 62 Herbicide transfer pipe 63 Herbicide spraying nozzle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Makoto Honmoto, No. 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefectural Engineering Department, Iseki Agricultural Machinery Co., Ltd. (72) Kazushi Ochi No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Technical department (72) Inventor Kazuhiro Takekawa 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (72) Inventor Satoru Tokuda 1 Yakura, Tobe-machi, Iyo-gun, Ehime Prefecture Izeki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A granular structure in which granular material delivered from a granular material storage unit is transferred through a transfer pipe to a spraying port facing a spraying position in a field, and pressurized air for transferring granular material is blown into the transfer pipe by a blower. In the object dispersal device, a granular material outlet for taking out the granular material remaining in the granular material storage unit, a recovery pipe for recovering the granular material taken out through the granular material outlet, and the granular material outlet are provided. A collection shutter that opens and closes, and a blower switching shutter that switches so that the pressurized air from the blower is sent to the collection pipe are provided,
A granular material spraying device, characterized in that both shutters are interlocked so that when the blower switching shutter is switched to the side where the pressurized air from the blower is sent to the collecting pipe, the collecting shutter opens later.