JP3400058B2 - Powder spraying equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a blade for scattering, for example, a powdery substance such as a drug which is fed out from a storage section by a feeding mechanism and dropped and supplied. The present invention also relates to a powder-particle dispersing device configured to be diffused in the machine body width direction by a rotationally driven diffusion rotor to be scattered and dropped. 2. Description of the Related Art Conventionally, in the above-mentioned powdery and granular material spraying apparatus, one diffusion rotor is provided at the center in the lateral direction of the fuselage, as disclosed in, for example, Japanese Patent Application Laid-Open No. 4-84846. A plurality of diffusion blades are erected on the upper side of a disk that is driven to rotate around an axis along the vertical direction, and the disk is rotated at a high speed by an electric motor. The powdery material is fed out and supplied to a predetermined position on the radially outer peripheral portion of the diffusion rotor, and a guide member in the form of a lower open frame that is long in the width direction and covers the outer side of the diffusion rotor is provided. There was something to configure. [0003] However, in the case of the above-mentioned conventional structure, a vertical plate-shaped blade rotating around a vertical axis collides against the powdery material supplied and dropped and diffuses. In this configuration, the powder particles colliding and scattered here are successively diffused in the width direction while repeating collision reflection mainly on the inner vertical wall portion of the guide member. Since the diffusing action in the direction is performed by multiple reflections on the guide member, which is a fixed wall, it is difficult to exert a sufficient diffusing action to the outer side in the width direction, and it is difficult for the diffusing rotor to fall. Since there is only one supply port, the distribution amount is different on both the left and right sides of the diffusion rotor. In particular, when the medicine is sprayed in a field or the like, there is a disadvantage that the distribution of the medicine spray becomes uneven. . As a method of solving the above problem, it is conceivable to increase the diameter of the diffusion rotor to increase the initial diffusion ability.
In this case, there is a disadvantage that the front-to-rear width of the device becomes unnecessarily large. The present invention provides a powdery and / or granular material which can be sufficiently diffused in the lateral direction by a reasonable structure while having a compact shape, and the distribution of the granular material can be made substantially uniform in the lateral direction. It is intended to provide a spraying device. [0004] A feature of the present invention is that, in the powdery and granular material spraying apparatus described at the beginning, a pair of the diffusion rotors are provided on the left and right sides in a state of being provided side by side in the machine body width direction. The rotor is configured to be driven to rotate around an axis extending in the longitudinal direction of the fuselage, and each supply port for separately supplying the powdery material to each diffusion rotor is provided at a position closer to the fuselage than the rotation axis of each diffusion rotor. Rotation of each diffusion rotor is provided at a position deviated inward in the width direction and at a position corresponding to the upward rotation point of the blade body, so that the powder particles dropped and supplied are bounced upward and outward. The point is that the direction is set. Since the diffusion rotor rotates around the axis along the longitudinal direction of the fuselage, the radial direction of the diffusion rotor, which requires a large space, is arranged along the vertical plane, and the dimension along the longitudinal direction of the fuselage. Only needs to be the width of the wing body,
There is no need to increase the width in the longitudinal direction of the machine, and the longitudinal width of the device can be suppressed to a small value. In addition, since it is a configuration in which the powder is diffused by rotation around the longitudinal axis,
Since the diffusion area due to the direct collision and scattering action by the blades of the diffusion rotor expands in the direction along the vertical plane, compared to the conventional type of structure, the airframe spreads in the direction along the horizontal plane and rotates around the longitudinal axis. Dispersion in the width direction is high, emission components along the fuselage longitudinal direction are small, and the number of reflections on fixed parts such as guide members is reduced as much as possible, but it is possible to sufficiently diffuse powder and granules in the width direction. It becomes possible. In addition, the powder particles are supplied to the left and right diffusion rotors at positions corresponding to the upward rotation of the blade body on the inner side in the machine width direction, and each diffusion rotor moves the powder particles upward and outward. In this case, the blades are more likely to be impacted and scattered by the blades, as compared to the case where the blades collide laterally against the granular material supplied and dropped. The particles supplied from the supply port are distributed and scattered on the left and right sides, and the diffusion distributions in the diffusion regions on the left and right sides are substantially equalized. Accordingly, the entire apparatus can be formed in a compact shape in the longitudinal direction of the fuselage, and the particles can be sufficiently diffused along the lateral width direction of the fuselage by rational structural improvement. As a result, it is possible to provide a powder-particle dispersing apparatus capable of substantially equalizing the diffusion distribution on the left and right sides of the powder-particle diffusion region. An embodiment will be described below with reference to the drawings. FIG.
1 shows a riding type rice transplanter equipped with a medicine spraying device 1 which is an example of a powdery and granular material spraying device according to the present invention. In this rice transplanter, a seedling planting device 3 is connected to a rear portion of a riding type traveling machine body (not shown) via a link mechanism 2 so as to be movable up and down. A fertilizer application device 4 for performing fertilization is mounted, and further, a chemical spraying device 1 is mounted behind the fertilizer device 4. The seedling planting apparatus 3 has three planting cases 6 cantileverly connected to the rear portion of the square pipe-shaped main frame 5 at appropriate intervals, and is provided on both sides of the rear portion of each planting case 6. A planting mechanism 7 is provided. Power is supplied to each planting mechanism 7 via a chain transmission mechanism (not shown) in each planting case 6 via a feed case 8 to which power is supplied from the machine body. The power to the mechanism can be intermittently operated by each clutch (not shown). Therefore, by operating each of the line clutches, a partial line planting operation for stopping the operation of the two lines on both the left and right sides can be performed. The fertilizer applicator 4 has a working position located below a support frame 9 erected from a planting case 6 also serving as a frame on the seedling planting apparatus 3 side and a maintenance position retracted upward. The sliding position can be adjusted over the entire area, and when the seedlings remaining on the seedling rest 10 are taken out after the completion of the planting work, the work can be easily taken out by switching to the maintenance position. Next, the medicine spraying device 1 will be described. As shown in FIG. 2, the medicine spraying device 1 includes left and right round pipe-shaped support frames 1 on left and right planting cases 6.
It is configured to be removably connected and supported via the first connector 1.
That is, as shown in FIG. 10, support shafts 13 are protruded rearward through the brackets 12 at the rear portions of the planting cases 6, and the ends of the support frames 11 are inserted into the respective support shafts 13. It is configured so that it is supported and fixed by being prevented from coming off by contact bolts, and can be easily removed. As shown in FIG. 3 to FIG. 6, the medicine spraying device 1
A medicine storage hopper 14 (an example of a storage unit) for storing a medicine (an example of a granular material) such as a particulate herbicide is provided, and a predetermined amount of the medicine is downwardly communicated to the lower side of the hopper 14 by a predetermined amount. A pair of left and right diffusion rotors 16 for dispersing the medicine dropped and supplied by each of the feeding mechanisms 15 in the machine body width direction and dropping them in the field are arranged side by side in the machine body side direction. The lower part of the periphery of the diffusion rotor 16 is provided with a slit-shaped opening, and a long box-shaped guide member 17 is provided in the width direction. The hopper 14 is provided with the feeding case 1
8 is configured to be detachably mounted by a buckle mechanism 19. The feeding case 18 is formed in a rectangular tube shape surrounding the feeding mechanism 15, and a perforated case 20 is mounted so as to cover an upper opening thereof. The hopper 1
Reference numeral 4 denotes a funnel portion 14a for guiding the flow of the drug and an outer peripheral vertical wall portion 14.
b is integrally molded of a synthetic resin material, and even if it is slightly distorted during the attachment / detachment work, a positioning guide for guiding the outer peripheral vertical wall portion 14b and the feeding case 18 to be accurately positioned at the time of mounting. 21 is the eyeglass storage case 20
And the feeding case 18. As shown in FIG. 7, the delivery mechanism 15 has a medicine delivery hole 2 which is an insertion hole at a predetermined pitch in the circumferential direction.
2 is provided in the perforated tray storage case 20 so as to be rotatable around the vertical axis, and is supplied from a feed port 24 of the hopper 14 [an example of a supply port].
3 at a location where the medicine stored in the delivery hole 22 differs from the delivery port 24 in the circumferential direction.
The electric motor 28 falls down from the funnel-shaped guide portion 25a formed on the bottom plate 25 through the drop supply port 27.
Thus, a powdery or granular drug is scattered in the width direction by a diffusion rotor 16 that is driven to rotate at high speed, and is dropped and supplied to a field in a diffusion distribution state. The feed holes 22 are alternately formed in two rows on a circumference having the same radius around the same axis and different in radius, and have a smaller diameter than the hole diameter in the conventional structure. The feed port 24 of the hopper 14 is formed in a large rectangular shape capable of supplying the granular material over the feed holes inside and outside. With this configuration, while maintaining the strength by setting the thickness of the perforated plate to a predetermined thickness, for example, when a small amount of about 1 kilogram of medicine is sprayed per 10 areal field area, Even when the rotation speed of the perforated plate is changed to a low speed state by changing the gear ratio in the transmission system, the powder and granules can be fed out little by little and almost continuously. Note that a seal member made of an elastic material such as rubber is provided on the outer peripheral portion of the feed port of the hopper, and a gap is eliminated to prevent the granular material from spilling outward. As shown in FIG. 8, only the outer peripheral portion of the perforated plate 23 where the feeding hole 22 is formed is the perforated plate storage case 2.
0, so that the medicine is in sliding contact with the bottom surface 25 of the feeding hole 2.
2 is configured to be effectively transported in a state of being accumulated in the center portion 2, and a concave portion 29 is formed on the center side so that a gap is formed between the central portion and the bottom surface 25.
Is formed so that the feeding hole forming portion always slides on the bottom surface 25 so that the feeding hole forming portion does not rise from the bottom surface due to distortion or the like. In addition, a lid plate 30 covering almost the entire upper surface of the eye plate 23 is provided above the eye plate 23,
It is placed in a state in which entrainment is prevented, and it is effective that the wind generated due to the high-speed rotation of the diffusion rotor 16 blows up through the drop supply port 27 and the powder is blown upward. To prevent it. The perforated plate 23 in each feeding mechanism 15
Is configured to be driven by the rotational power of the planting mechanism 7 in the seedling planting apparatus 3. In other words, the planting claw support cases 32, which are attached to both ends of the rotating case 31 in the planting mechanism 7 on the lateral outer side so as to be relatively rotatable, are eccentric from the rotation axis of the connecting member 33 that connects the planting claw supporting cases 32. A push / pull rod 34 is pivotally connected to the position, and the other end of the push / pull rod 34 is connected to the lateral rotation shaft 3 via a swing arm 35.
6 is linked. Further, the lateral rotation shaft 36 and the input shaft 38 projecting laterally from the transmission case 37 are linked and connected via a link mechanism 39, and the input shaft 38 reciprocates within a predetermined range with the rotation of the planting mechanism 7. It is configured to rotate. As shown in FIG. 9, in the transmission case 37, the reciprocating rotation of the input shaft 38 is transmitted to the reverse rotation shaft 43 via a pair of gears 41 and 42, and further, from the both shafts 38 and 43 in one direction. It is transmitted as continuous rotational power to one output shaft 48 via the rotating clutches 44 and 45 and the gear mechanisms 46 and 47, and further transmitted from the output shaft 48 to the perforated drive shaft 50 via the bevel gear mechanism 49. The transmission system is configured so that the power can be transmitted. Accordingly, when any one of the left and right lateral outer clutches is disengaged, the rotation of the corresponding plate 23 is stopped. On the outer peripheral portion of the perforated plate 23, there is formed a feeding action surface for rotating the powder and granules leaking between the outer peripheral surface of the perforated plate 23 and the peripheral wall 51 of the perforated plate storage case 20. is there. That is, a plurality of notches 52 are formed at predetermined intervals on the outer peripheral surface of the perforated plate 23, and the inner surface on the lower side in the rotation direction of the notched concave 52 is formed into a vertical wall shape substantially along the radial direction. The funnel-shaped guide portion 25 is supported while pushing and rotating the granular material that has leaked between the outer peripheral surface 23a and the peripheral wall 51.
This is configured on a feed action surface 53 that guides to a. In this way, it is possible to prevent the medicine leaking from the feeding hole 22 from accumulating in the eyeglass storage case 20 and clogging at an early stage. Each of the diffusion rotors 16 includes an electric motor 28.
As shown in FIG. 4, a pair of front and rear rotating disks 54 and 55 are connected to each other by four diffusing blades 56 as shown in FIG. It is configured. Each of the supply ports 27 for separately dropping and supplying the granular material to each of the diffusion rotors 16 is located at a position deviated inward in the machine width direction from the rotation axis of each of the diffusion rotors 16 and the blades. It is provided at a position corresponding to the upward rotation point of the body 56. The direction of rotation of each diffusion rotor 16 is set so that the powders supplied in a falling manner are splashed upward and outward. In other words, each diffusion rotor 16 is rotated in the opposite direction so that the adjacent side rotates upward, and each blade body 56 is formed in a diagonal posture positioned radially inward toward the lower side in the rotation direction, and the powder is rotated at the upward rotation point. The particles are scattered upward and outward, so that the diffusion action in the width direction can be rationally performed. Guide member 1 in which diffusion rotor 16 is stored
Reference numeral 7 denotes a substantially box-like shape which is elongated in the lateral direction of the fuselage and has a lower side opened, and a ceiling surface 58 located above the diffusion rotor 16 is lower as it goes from the upper side of the diffusion rotor 16 to the laterally outward side. The dust particles scattered by the diffusion rotor 16 are effectively irregularly reflected on the ceiling surface 58 and are effectively scattered and supplied in the lateral width direction. Further, a partition member 59 for preventing the powdery material scattered by each diffusion rotor 16 from being scattered toward the scattered area by the diffusion rotor on the opposite side is provided at a central portion in the horizontal direction between the diffusion rotors 16. It is provided. In this manner, the medicine scattered and supplied by each diffusion rotor 16 is surely separated into two regions divided in the machine body width direction, so that the medicine is supplied with high accuracy and uniform distribution. Alternative Embodiment The number of diffusion blades 56 of the diffusion rotor 16 is not limited to four, but may be one to three or five or more. Also, the guide member 1
7, the inclination angle of the ceiling surface 58 can be changed and adjusted so that the inclination angle can be changed and adjusted in accordance with the difference in the particle diameter of the medicine. A configuration in which the left and right angles can be freely adjusted around the longitudinal axis and the partition member 59 can be set in a downwardly expanding oblique attitude when the left or right clutch is disengaged. In the claims, reference numerals are provided for facilitating comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings] FIG. 1 is a side view of a rear part of a rice transplanter. FIG. 2 is a plan view of the rear part of the rice transplanter. FIG. 3 is a rear view of the medicine spraying device. FIG. 4 is a longitudinal sectional side view of the medicine spraying device. FIG. 5 is a longitudinal sectional front view of the medicine spraying device. FIG. 6 is a plan view of an eyeglass storage case. FIG. 7 is a plan view of a perforated plate disposition portion. FIG. 8 is a sectional view of a feeding mechanism. FIG. 9 shows a transmission mechanism. FIG. 10 is a side view showing a frame connection structure. [Explanation of symbols] 14 Reservoir 15 Feeding mechanism 16 Diffusion rotor 27 Supply port 56 wings

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tadashi Tanimoto 639, Yamate, Oda, Yoshida-cho, Takada-gun, Hiroshima Prefecture (72) Inside Keibunsha Mfg. Co., Ltd. Inside the Bota Sakai Works (72) Inventor Shoichi Nakamura 64 Ishizukitamachi, Sakai City, Osaka Prefecture Inside the Kubota Sakai Works Co., Ltd. (72) Inventor Yoshiaki Sonoda 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Works ( 56) References JP-A-7-8147 (JP, A) JP-A-3-172114 (JP, A) JP-A 4-65081 (JP, U) JP-A-45-9107 (JP, Y1) (58) ) Field surveyed (Int. Cl. ⁷ , DB name) A01C 15/00 A01M 9/00

Claims (1)

(57) [Claims 1] A mechanism (15) for feeding out from a storage part (14)
The powdery particles fed and dropped and supplied are dispersed in the lateral width direction of the fuselage by diffusion rotors (16), (16) having scattering blades (56) and driven to rotate, to be scattered and dropped. And a pair of right and left diffusion rotors provided side by side in the machine body width direction, wherein each of the diffusion rotors (16), (16) is rotated around an axis along the machine body front-back direction. Each of the supply ports (27), (27) is configured to be driven so as to drop and supply the granular material individually to the respective diffusion rotors (16), (16).
At a position deviated inward in the fuselage width direction from the rotation axis of each diffusion rotor (16), (16), and the blade body (5)
6) The rotation direction of each of the diffusion rotors (16), (16) is provided at a position corresponding to the upward rotation point, and is set so as to bounce the powdered material dropped and supplied upward and outward. Powder disperser.