JP2020110120A - Granule dissemination device - Google Patents

Abstract

To inexpensively provide a granule dissemination device including a delivery/supply part connected to a lower side of a granule tank, delivering granules from the granule tank, and spreading the delivered granules to the left/right directions in the rear side of a work machine to be supplied to a farm field.SOLUTION: A delivery/supply case 40 can be divided into: a delivery/supply case part 43 for storing a delivery/supply member 48 for delivering granules from a granule tank 30A; a left dissemination case part 46 for storing a left scattering member 55 for scattering the granules to the left side; a right dissemination case part 47 for storing a right scattering member 56 for scattering the granules to the right side; and a prime mover mechanism case part 44 for storing an electric prime mover mechanism 45 that outputs power toward the delivery/supply member 48, the left scattering member 55, and the right scattering member 56.SELECTED DRAWING: Figure 8

Description

TECHNICAL FIELD The present invention relates to a powder and particle dispersal device.

A granular material spraying device equipped on a working machine, which is connected to a granular material tank for storing the granular material to be sprayed in the field and a lower portion of the granular material tank, so that the granular material is discharged from the granular material tank. Some of them are provided with a feeding unit for feeding the body, diffusing the fed powder and granules to the left and right in the rear of the working machine, and feeding it to the field.
An example of this type of powdery or granular material spraying device is shown in Patent Document 1. The device disclosed in Patent Document 1 includes a hopper as a powder and granular material tank, and one spray case connected to the lower part of the hopper. A feeding section configured to feed the medicine stored in the hopper by a perforated plate, a diffusion mechanism for diffusing the medicine fed out by the feeding section in the lateral direction of the machine body by a diffusion blade, a stepping motor for outputting power for driving the perforated plate, Each of the electric motors that drive the diffusion blades is housed in a spray case.

JP, 2011-72223, A

In the powder-dispersion device, a drivable left scattering member that scatters the powder to the left, a drivable right scattering member that scatters the powder to the right, and the powder from the powder tank, By providing a delivery supply member that supplies the delivered powder and granular material to the left scattering member and the right scattering member, and an electric driving mechanism that outputs power toward the supply member, the left scattering member and the right scattering member, the powder The granular material stored in the granular tank is smoothly fed from the granular tank by the feeding supply member driven by the power of the electric driving mechanism, and is accurately supplied to the left scattering member and the right scattering member. The powder particles are accurately supplied to a predetermined spraying range in the field by the left scattering member and the right scattering member driven by the power.

However, when the conventional technology is adopted, one feeding supply case connected to the granular material tank is provided, and since the feeding supply member, the left scattering member, the right scattering member and the electric driving mechanism are housed in this supplying supply case, The feeding case must be manufactured with a complicated shape and a large molding die, resulting in high cost.

The present invention provides a drivable supply member, a drivable left scattering member, a drivable right scattering member, and an electric motor mechanism that outputs power to the distribution supply member, the left scattering member and the right scattering member. (EN) Provided is a powdery or granular material spraying device which can be stored in a case and can be obtained at low cost.

The powdery or granular material spraying device according to the present invention,
A granular material spraying device equipped on a working machine, which is connected to a granular material tank for storing granular material to be sprayed in a field, and a lower portion of the granular material tank, from the granular material tank. A feeding unit that feeds out the granular material and supplies the fed granular material to the field by diffusing the fed granular material to the left and right in the rear of the working machine, and the feeding supply unit, the granular material is directed to the left. A drivable left scattering member that scatters, a drivable right scattering member that scatters the granular material to the right, and a granular material inside the granular material tank are supplied to the left scattering member and the right scattering member. A feeding supply member, an electric driving mechanism that outputs power to the feeding supply member, the left scattering member, and the right scattering member, and the feeding supply member, the left scattering member, the right scattering member, and the electric driving mechanism. And a payout supply case connected to the powder and granular material tank, and the payout supply case includes a payout supply case portion that receives the payout supply member and is connected to the powder and granular material tank. A driving mechanism case portion that accommodates the electric driving mechanism and is connected to a lower portion of the feeding supply case portion; and a driving mechanism case portion that accommodates the left scattering member and has a left spray port opened downward. Is configured to be separable into a left spreading case portion connected to the driving mechanism mechanism, and a left spreading case portion that is connected to the driving mechanism case portion in a state where the right spreading member is accommodated and the right spreading port is opened downward. ing.

With this configuration, the feeding supply case can be divided into the feeding supply case portion, the driving mechanism case portion, the left spreading case portion, and the right spreading case portion, so that the entire feeding feeding case can be formed by one molding die. Compared with the case of manufacturing by using the above method, the feeding and supplying case can be manufactured by adopting a molding die having a simple structure and a small size, and thus the powdery or granular material spraying device can be obtained at low cost.

In the present invention, a left guide that is provided along the inner surface of the left spreading case portion, is contacted by the powder particles scattered by the left scattering member, and guides the powder particles that have hit to spread to the left. A right guide that is provided with a plate and is provided along the inner surface of the right spreading case portion, and that the powder and granules scattered by the right scattering member hit and guide the hit powder and granules to diffuse rightward. Suitably a plate is provided.

According to this configuration, the powder particles scattered by the left scattering member are guided and diffused by the left guide plate, and the powder particles scattered by the right scattering member are guided and diffused by the right guide plate. The body can be sprayed accurately over a wide supply range. Further, since the left guide plate and the right guide plate can prevent the granular material from hitting the left spray case part and the right spray case part, the left spray case part and the right spray case part are less likely to wear.

In the present invention, provided on the guide surface of the left guide plate, provided with a left diffusion guide for guiding the powder particles scattered by the left scattering member so as to diffuse in the left direction, the right guide plate It is preferable that a right diffusion guide provided on the guide surface so as to guide the granular material scattered by the right scattering member so as to diffuse rightward is provided.

According to this configuration, the powder particles scattered by the left scattering member are guided and diffused by the left diffusion guide, and the powder particles scattered by the right scattering member are guided and diffused by the right diffusion guide. The body can be sprayed accurately over a wider supply range.

In the present invention, the left guide plate is provided in an upper left inclined state, and the left diffusion guide is provided in an upper left state with an inclination angle steeper than an inclination angle of the left guide plate, and the right diffusion guide is provided. It is preferable that the guide plate is provided in an upper right tilted state, and the right diffusion guide is provided in an upper right tilted state with an inclination angle steeper than the inclination angle of the right guide plate.

According to this configuration, since the powder particles scattered by the left scattering member are guided by the left diffusion guide and are diffused leftward by the left guide plate, they are diffused leftward, and thus are scattered by the right scattering member. Since the granular material is guided by the right diffusion guide and is diffused to the right more than it is diffused to the right by the right guide plate, the granular material can be accurately dispersed in a wider supply range.

In the present invention, a gap is formed between the left case portion edge portion along the left spray port of the left spray case portion and the left guide plate edge portion of the left guide plate facing the left spray port. Is formed, a gap between the right case portion edge portion along the right spray port of the right spray case portion and the right guide plate edge portion of the right guide plate facing the right spray port. It is preferably formed.

According to this configuration, even if car wash water or rainwater adhering to the outer surface of the left and right spray case parts is attached to the outer surface of the spray case part and drops down to the edge part of the case part, Since it does not enter the guide plate due to the gap between the guide plate edge portion, it is possible to prevent the inside of the left spray case part and the right spray case part from becoming damp.

In the present invention, the driving mechanism case portion is made of resin, the electric driving mechanism comprises a feeding electric motor that outputs power toward the feeding supply member, and is provided inside the driving mechanism case portion. It is preferable that a metal supporting member that supports the feeding electric motor is provided.

According to this configuration, the feeding electric motor is firmly supported by the metal supporting member, so that vibration due to the driving of the feeding electric motor is unlikely to occur.

In the present invention, it is preferable that the feeding supply member is supported by the metal supporting member.

According to this configuration, since the feeding supply member is firmly supported by the metal supporting member, the feeding supply member is less likely to vibrate, and the powder or granular material is fed out with an accurate feeding amount.

In the present invention, the electric prime mover includes a left output shaft on which the left scattering member is non-rotatably supported, and a right output shaft on which the right scattering member is non-rotatably supported. It is preferable to have a scattered electric motor.

With this configuration, the left scattering member and the right scattering member can be driven by a simple drive structure in which the left scattering member is directly supported by the left output shaft and the right scattering member is directly supported by the right output shaft.

In the present invention, an opening through which the left output shaft is inserted is formed while standing upright from the bottom wall portion of the driving mechanism case portion between the motor body of the scattered electric motor and the left scattering member. A left partition wall that partitions the inside of the left spray case portion and the inside of the driving mechanism case portion is provided, and the driving mechanism case portion faces between the motor body of the scattering electric motor and the right scattering member. And an opening through which the right output shaft is inserted is formed, and a right partition wall that partitions the inside of the right spreading case portion and the inside of the driving mechanism case portion is provided. Is suitable.

According to this configuration, the dust generated inside the left spreading case part hardly hits the left partition wall and adheres to the scattered electric motor, and the dust generated inside the right spreading case part hits the right partition wall and scatters the electric motor. Since it is difficult to adhere to the surface of the electric motor, it is unlikely that a malfunction will occur due to the adhesion of dust to the scattered electric motor.

In the present invention, a drainage hole provided in the bottom wall of the driving mechanism case and a plug member attached to the drainage hole are provided, and the plug member is larger than the hole diameter of the drainage hole. A plug head having an outer diameter, and a plug shaft portion extended from the plug head and inserted into the drain hole, and the outer peripheral portion of the plug shaft portion extends over the entire length of the plug shaft portion. It is preferable that the shaft recessed portion is formed, and the head recessed portion is formed in a lower portion of the plug head in a state along the radial direction of the plug member and in a state of communicating with the shaft recessed portion. is there.

According to this configuration, the water that has entered the inside of the driving mechanism case flows into the head recessed portion, flows from the head recessed portion into the shaft recessed portion, and flows out from the shaft recessed portion to below the bottom wall portion. Even if the water that has bounced up under the powdery or granular material spraying device is directed toward the drainage hole, the plug shaft part that enters the drainage hole becomes an obstacle, and it is difficult for water to enter the drainage hole. Even if water enters the shaft recess, the plug head located above the shaft recess becomes an obstacle, and the head recess communicating with the shaft recess intersects the shaft recess. Since it extends in the direction, it is difficult for water that has entered the shaft recess into the inside of the drive mechanism case. That is, it is easy to prevent water from entering the inside of the driving mechanism case through the drain while the water that has entered the inside of the driving mechanism case can be discharged through the drainage hole.

It is a left side view showing the whole riding type rice transplanter. It is a top view which shows the whole riding type rice transplanter. It is a front view which shows a powder-and-particles spreading apparatus. It is a rear view which shows a granular material distribution apparatus. It is a bottom view which shows a powder-particles spreading apparatus. FIG. 5 is a sectional view taken along line VI-VI of FIG. 4. It is a VII-VII cross section arrow line view of FIG. It is a VIII-VIII cross section arrow line view of FIG. FIG. 5 is a sectional view taken along the line IX-IX in FIG. 4. FIG. 6 is a sectional view taken along the line X-X of FIG. 5. It is sectional drawing of a drainage hole. It is a perspective view which shows the delivery supply case part in the disassembled state of the delivery supply case, the left spray case part, the right spray case part, and the driving mechanism case part. It is a perspective view which shows the delivery supply case part in a disassembled state of a delivery supply case, a connection member, a left distribution case part, a right distribution case part, and a driving mechanism case part. It is a perspective view which shows a left spreading case part, a left guide plate, and a left diffusion guide. It is a perspective view of a stopper member. It is a perspective view which shows a waterproof groove.

An embodiment, which is an example of the present invention, will be described below with reference to the drawings.
In the following description, with respect to the traveling body of the riding type rice transplanter, the direction of the arrow F shown in FIGS. 1 and 2 is “the body front”, the direction of the arrow B is “the body rear”, and the arrow U shown in FIG. Is "upper body", the direction of arrow D is "lower body", the direction of arrow L shown in Fig. 2 is "left body", and the direction of arrow R is "right body".

As shown in FIGS. 1 and 2, the riding rice transplanter includes a traveling machine body in which a pair of left and right front wheels 1 are steerably and drivably equipped, and a pair of left and right rear wheels 2 are drivably equipped. ing. A driving unit 4 having an engine 3 is formed at the front of the traveling machine body. A driver's seat 5 and a riding-type driver 7 having a steering wheel 6 for steering the front wheels 1 are formed at the rear of the vehicle body. A seedling planting device 10 is connected to the rear part of the machine body frame 8 of the traveling machine body via a link mechanism 9. The seedling planting device 10 has a descending work state in which the grounding float 11 is grounded in the field scene by the vertical swinging operation of the link mechanism 9 with respect to the machine frame 8 and a rising non-working in which the grounding float 11 is separated upward with respect to the field scene. The elevator is operated up and down depending on the state. A fertilizer application device 20 that supplies powdered and granular fertilizer to the seedlings planted by the seedling planting device 10 is provided at the rear of the traveling machine body. At the rear part of the seedling planting device 10, a powdery or granular substance spraying device 30 is provided behind the seedling planting device 10 for spraying a herbicidal powdery or granular chemical in the lateral direction of the traveling machine body.

[Construction of seedling planting equipment]
As shown in FIGS. 1 and 2, the seedling planting device 10 includes a planting machine body 13 including four planting transmission cases 12 and the like arranged at intervals in the lateral width direction of the traveling machine body. A seedling planting mechanism 14 is drivably supported on both lateral portions of the rear portion of each of the four planting transmission cases 12. Above the planting machine body 13, one seedling mounting table 15 having eight seedling mounting portions arranged in the lateral direction of the traveling machine body is provided. The seedling placing table 15 is laterally reciprocally moved in a state interlocking with the seedling planting movement of the seedling planting mechanism 14, and the mat-like seedlings placed on the respective seedling placing portions correspond to the seedling placing portions. It reciprocates in the left-right direction with respect to the attachment mechanism 14. As a result, the pair of planting arms 14a of each seedling planting mechanism 14 alternately take out the planting seedlings from the mat-like seedlings placed on the seedling placing section, hold the taken out planting seedlings, and place them in the field. It descends and is planted in the field. The seedling planting mechanism is arranged below the planting machine body 13 in the lateral direction of the traveling machine body, supports the seedling planting device 10 in the descending work state, and sets the seedling planting position by the seedling planting mechanism 14 in the field. Five ground contact floats 11 are supported which are prepared before the 14 planting of seedlings. The seedling planting device 10 is capable of seedling planting by the eight seedling planting mechanisms 14 arranged in the lateral direction of the traveling machine body, that is, eight-row planting.

[About the structure of fertilizer application]
The fertilizer application device 20 includes two fertilizer tanks 21 arranged in the lateral direction of the traveling machine body, a fertilizer feeding/feeding unit 22 connected to the lower portion of each fertilizer tank 21, and a blower blower 23 connected to the fertilizer feeding/feeding unit 22. And are equipped with. Four fertilizer application hoses 24 are extended toward the seedling planting device 10 from the fertilizer feeding supply unit 22 connected to one fertilizer tank 21 of the two fertilizer tanks 21, and the other fertilizer tank of the two fertilizer tanks 21 is supplied. Four fertilizer application hoses 24 are extended toward the seedling planting apparatus 10 from the fertilizer feeding/supplying unit 22 connected to 21. The eight fertilizer hoses 24 are separately connected to a total of eight fertilizer applicators 25, one on each lateral side of each of the eight seedling planting mechanisms 14.

In the fertilizer application device 20, the fertilizer feeding/feeding unit 22 connected to each of the two fertilizer tanks 21 feeds the granular fertilizer from the fertilizer tank 21, and the fed fertilizer is fed by the wind from the blower blower 23 to the four fertilizer hoses. Supply to 24. Each fertilizer applicator 25 forms a groove in the field on the lateral side of the seedling planting position by the seedling planting mechanism 14, and supplies the fertilizer supplied by the fertilizer hose 24 to the formed groove.

[Regarding the structure of the powder and particle dispersal device]
As shown in FIGS. 1 and 2, the powdery- or granular-material spraying device 30 is supported by the support frame 16 in a state of being arranged in the central portion of the seedling planting device 10 in the left-right direction in a plan view. The support of the powder and granular material distribution device 30 by the support frame 16 is performed in a state in which the powder and granular material tank 30A is in a forward tilted posture with the upper end side thereof positioned forward. The support frame 16 is extended upward from the adjacent planting transmission cases 12 among the four planting transmission cases 12 with the center of the seedling planting device 10 in the left-right direction sandwiched therebetween.

As shown in FIGS. 1, 3, and 4, the powdery- or granular-material spraying device 30 includes a powdery- or granular-material tank 30A in which powdery or granular-shaped chemicals are stored, and a feeding supply unit 30B connected to a lower portion of the powdery- or granular material tank 30A. And are equipped with. The feeding supply unit 30B takes out the medicine from the granular material tank 30A, scatters the taken medicine in the left and right directions of the traveling machine behind the seedling planting device 10, and in the lateral direction of the seedling planting device 10 in the field. The drug is supplied to the field by spraying it on the part corresponding to the planting range of.

As shown in FIGS. 6 and 8, in the tank body 31 of the powder/granular material tank 30A, a storage portion 31b for storing the powdery and granular drug, and a cylindrical portion 32 extending downward from the lower portion of the storage portion 31b. And are provided. The tubular portion 32 is integrally formed with the storage portion 31b when the tank body 31 is formed. The tank body 31 and the tubular portion 32 are made of resin. As shown in FIG. 8, the reinforcing rib 33 is integrally formed on the inner surface side of the tubular portion 32. The reinforcing ribs 33 are provided at a plurality of positions in the circumferential direction of the tubular portion 32. An annular connecting portion 41 is formed on the upper portion of the feeding supply case 40 in the feeding supply unit 30B. By connecting the tubular portion 32 and the connecting portion 41 in a state where the connecting portion 41 is fitted in the tubular portion 32, the powder and granular material tank 30A and the feeding supply portion 30B are connected. The powder/granular material tank 30A can be removed upward with respect to the feeding supply case 40. In the state where the tubular portion 32 and the connecting portion 41 are connected, the contact portion 33a formed at the bottom of each reinforcing rib 33 is in contact with the connecting portion 41 from above. The load of the granular material tank 30A is received and supported by the feeding case 40 from below via the reinforcing rib 33. On both sides of the tubular portion 32, a snap lock 34 (see FIG. 4) for fixing the powdery or granular material tank 30A to the feeding and feeding case 40 is provided between the tubular portion 32 and the feeding and feeding case 40.

[About the structure of the feeding unit]
The feeding supply unit 30B includes a feeding supply case 40 as shown in FIGS. As shown in FIGS. 3 and 6, the feeding supply case 40 is supported by the support frame 16 via a connecting member 42 attached to the front portion of the feeding supply case 40.

As shown in FIGS. 3, 4, 5, 6, 7, and 8, the feeding supply case 40 includes a feeding supply case portion 43 having a connecting portion 41, and a driving mechanism case connected to a lower portion of the feeding supply case portion 43. The portion 44, the left spreading case portion 46 connected to the left side portion of the driving mechanism case portion 44, and the right spreading case portion 47 connected to the right side portion of the driving mechanism case portion 44. Each of the feeding supply case part 43, the driving mechanism case part 44, the left spray case part 46, and the right spray case part 47 is made of resin.

As shown in FIGS. 6, 7, and 8, the feeding supply member 48 is housed in the feeding supply case portion 43. A vertical rotation support shaft 49 of the feeding supply member 48 is rotatably supported by the boss portion 43a of the feeding supply case portion 43 and the boss portion 50b of the sheet metal member as the metal supporting member 50. The feeding supply member 48 is supported by the metal support member 50 in a swingable state with the rotation support shaft 49 as a swing support point. The metal support member 50 is provided inside the driving mechanism case portion 44. Downward bent connecting portions 50a are provided on the left and right side portions of the front portion of the metal supporting member 50. The left and right bent connection parts 50 a are connected to the left and right lateral wall parts 51 d of the drive mechanism case part 44, and the metal support member 50 is supported by the drive mechanism case part 44. A pair of feeding supply holes 48a are opened at the free end side portion of the feeding supply member 48. The delivery supply member 48 is driven by a drive gear 52 provided on the rotation support shaft 49 in a state of reciprocally swinging in the left-right direction about a swing support point of the rotation support shaft 49, and by the pair of delivery supply holes 48a. The medicine is dispensed from the funnel portion 31a. One of the dispensing supply holes 48 a drops the dispensed medicine into the left supply hole 53 communicating with the inside of the left spray case portion 46 and supplies the drug into the left spray case portion 46. The other dispensing supply hole 48 a causes the dispensed medicine to fall into the right supply hole 54 communicating with the inside of the right spray case portion 47 and supply the inside of the right spray case portion 47. Reference numeral 38 shown in FIGS. 5 and 6 denotes a shutter that opens and closes the medicine discharge port of the funnel portion 31a. The shutter 38 is opened and closed by being slid by the swinging operation of the operating lever 38a.

As shown in FIGS. 5 and 8, the right scattering member 56 is rotatably housed inside the right spray case portion 47 at a position below the right supply hole 54. As shown in FIGS. 5 and 9, the right spray case 47 has a right spray port 47a which is opened downward. In the right spray case portion 47, the medicine supplied to the inside of the right spray case portion 47 by the feeding supply member 48 is supplied to the right spray member 56 and scattered inside the right spray case portion 47 by the right spray member 56. .. The sprayed chemicals hit the right guide portion 60 formed inside the right spray case portion 47 and are guided by the right guide portion 60, and from the right spray port 47a, in the planting range of the seedling planting device 10 in the field. It is sprayed on the part corresponding to the right half.

The right guide portion 60, as shown in FIGS. 5, 8 and 9, is arranged along the inner surface of the right spray case portion 47 and is supported by the right spray case portion 47. The right guide plate 61 is guided by the right guide plate 61. And a right diffusion guide 62 projecting from the surface toward the inner space of the right spray case portion 47. The right guide plate 61 and the right diffusion guide 62 are made of sheet metal members. In the right guide portion 60, the medicine scattered by the right scattering member 56 hits the guide surface of the right guide plate 61 and the guide surface 62a of the right diffusion guide 62. The medicine that has hit the guide surface of the right guide plate 61 is guided by the guide surface of the right guide plate 61 so as to fly toward the field from the right spray port 47a while being scattered rightward and backward. The medicine hitting the guide surface 62a of the right diffusion guide 62 is scattered by the guide surface 62a toward the field from the right spray port 47a while being scattered farther to the right than the medicine guided by the right guide plate 61. Be guided. By the medicine hitting the right guide plate 61, it is possible to prevent the right spray case portion 47 from being worn away due to friction with the medicine. The right diffusion guide 62 is supported by the right guide plate 61 by two mounting screws 63. Screw holes for the right diffusion guide 62 to which one of the two mounting screws 63 is mounted are formed at a plurality of positions. The right diffusion guide 62 is supported so that the angle of the guide surface 62a is changed by changing the angle with the other mounting screw 63b as a swing fulcrum.

It is preferable that the right guide plate 61 is provided in an upwardly inclined state, and the right diffusion guide 62 is provided in an upwardly inclined state at an inclination angle that is steeper than the inclination angle of the right guide plate 61. The medicine scattered by the right scattering member 56 is guided by the right guide plate 61 and the right diffusion guide 62, and diffused more widely in the right direction.

As shown in FIG. 10, a right case edge 47t of the right spray case 47 along the right spray port 47a and a right guide plate edge 61t of the right guide plate 61 facing the right spray port 47a. A gap Z is formed between them. The gap Z prevents water that has reached the right case portion edge portion 47t that has passed through the outer surface of the right spray case portion 47 from flowing into the inside of the right spray case portion 47.

As shown in FIGS. 5 and 8, the left scattering member 55 is rotatably housed in the inside of the left dispersion case portion 46, below the left supply hole 53. Similar to the right spray case part 47, a left spray port 46a is opened downward at the lower part of the left spray case part 46. In the left spray case portion 46, the medicine supplied to the inside of the left spray case portion 46 by the feeding-out supply member 48 is supplied to the left scattering member 55 and scattered inside the left spray case portion 46 by the left scattering member 55. .. The sprayed medicine hits the left guide portion 70 formed inside the left spray case portion 46 and is guided by the left guide portion 70. From the left spray mouth 46a, in the field, in the planting range of the seedling planting device 10. It is sprinkled on the part corresponding to the left half.

As shown in FIGS. 5 and 8, the left guide portion 70 includes a left guide plate 71 supported by the left spray case portion 46 along the inner surface of the left spray case portion 46, and a guide surface of the left guide plate 71. The left diffusion guide 72 is provided so as to project toward the inner space of the left dispersion case portion 46. The left guide plate 71 and the left diffusion guide 72 are composed of sheet metal members. In the left guide portion 70, the medicine scattered by the left scattering member 55 hits the guide surface of the left guide plate 71 and the guide surface 72a of the left diffusion guide 72. The medicine that has hit the guide surface of the left guide plate 71 is guided by the guide surface of the left guide plate 71 so as to fly toward the field from the left spray port 46a while scattering to the left and backward. The medicine hitting the guide surface 72a of the left diffusion guide 72 is scattered by the guide surface 72a to the field from the left spray port 46a while being scattered farther to the left than the medicine guided by the left guide plate 71. Be guided. By the medicine hitting the left guide plate 71, abrasion of the left spray case portion 46 due to friction with the medicine can be less likely to occur. The left diffusion guide 72 is supported by the left guide plate 71 by two mounting screws 73. The screw holes of the left diffusion guide 72 to which one of the two mounting screws 73 is mounted are formed at a plurality of positions. The left diffusion guide 72 is supported so that the angle of the guide surface 62a is changed by changing the angle with the other mounting screw 73b as a swing fulcrum.

It is preferable that the left guide plate 71 is provided in a state of rising to the left, and the left diffusion guide 72 is provided in a state of rising to the left at an inclination angle that is steeper than the inclination angle of the left guide plate 71. The medicine scattered by the left scattering member 55 is guided by the left guide plate 71 and the left diffusion guide 72 and is diffused more to the left.

Similar to the right spray case part 47, the left case edge 46t of the left spray case 46 along the left spray port 46a and the left guide plate edge 71t of the left guide plate 71 facing the left spray port 46a. A gap Z is formed between and. The gap Z prevents water that has reached the left case portion edge portion 46t from passing through the outer surface of the left dispersion case portion 46 from flowing into the inside of the left diffusion case portion 46.

The left scattering member 55 and the right scattering member 56 include a plurality of scattering blades, as shown in FIGS. The length from the center of rotation of the scattering blades to the tip of each scattering blade is set to the same length. The tip portion of each scattering blade is bent with respect to the base end portion in a state of being inclined with respect to the rotation direction and in a state of being inclined with respect to the base end portion. The inclination angle of the tip of each scattering blade with respect to the rotation direction and the inclination angle of the tip of each scattering blade with respect to the base end are set to the same inclination angle.

As shown in FIGS. 12 and 13, a waterproof groove 74 as shown in FIG. 16 is provided in the front-rear direction of the lateral wall portion 46s at the lateral wall edge portion along the left spreading port 46a of the lateral wall portion 46s in the left spreading case portion 46. It is formed so as to extend along. A waterproof groove 74 as shown in FIG. 16 is formed in a lateral wall edge portion of the lateral wall portion 47s of the right spray case portion 47 along the right spray port 47a so as to extend along the front-rear direction of the lateral wall portion 47s. The waterproof groove 74 prevents rainwater and car wash water from wrapping around the inner surfaces of the lateral wall portions 46s and 47s even if they reach the lateral wall edge portions through the outer surfaces of the lateral wall portions 46s and 47s.

As shown in FIGS. 5, 6 and 8, the driving mechanism case portion 44 includes a bottom wall portion 44a, a left partition wall 51a protruding upward from a left end portion of a rear portion of the bottom wall portion 44a, and a bottom wall portion. The right partition wall 51b protruding upward from the right end portion of the rear portion of the 44a and the right partition wall 51b protruding from the left and right end portions of the bottom wall portion 44a in front of the left partition wall 51a and the right partition wall 51b. And a front vertical wall portion 51c projecting upward from the front end portion of the bottom wall portion 44a. In the space S surrounded by the bottom wall portion 44a, the left partition wall 51a, the right partition wall 51b, the horizontal wall portion 51d, and the front vertical wall portion 51c, power is supplied toward the feeding supply member 48, the left scattering member 55, and the right scattering member 56. An electric drive mechanism 45 for outputting is stored.

The electric motor mechanism 45 is housed in the front side portion of the space S, and the feeding electric motor 57 that outputs power to the feeding supply member 48, and the rearward portion of the space S, the left scattering member 55. And one scattering electric motor 59 that outputs power toward the right scattering member 56. As shown in FIGS. 4 and 5, the feeding electric motor 57 is supported on the lower surface side of the metal supporting member 50. The tip end side portion of the output shaft 57 a of the feeding electric motor 57 is projected above the metal supporting member 50 from the opening of the metal supporting member 50. An output gear 58, which is provided on the tip end side portion of the output shaft 57a so as to be relatively rotatable, and a drive gear 52 are meshed with each other. As shown in FIGS. 4, 5, and 6, the scattered electric motor 59 is supported by the left partition wall 51a and the right partition wall 51b. The tip side portion of the left output shaft 59a of the scattering electric motor 59 is inserted into the left spreading case portion 46 through the opening of the left partition wall 51a, and the left scattering member 55 becomes relatively unrotatable at the tip side portion of the left output shaft 59a. It is supported. The tip side portion of the right output shaft 59b of the scattering electric motor 59 is inserted into the right spray case portion 47 through the opening of the right partition wall 51b, and the right scattering member 56 becomes relatively unrotatable at the tip side portion of the right output shaft 59b. It is supported.

As shown in FIG. 8, the left partition wall 51 a is erected from the bottom wall portion 44 a between the motor body of the scattering electric motor 59 and the left scattering member 55. The inside of the left spray case portion 46 and the inside of the driving mechanism case portion 44 are partitioned by the left partition wall 51a. The right partition wall 51b is provided upright from the bottom wall portion 44a between the motor body of the scattering electric motor 59 and the right scattering member 56. The inside of the right spray case portion 47 and the inside of the driving mechanism case portion 44 are partitioned by the right partition wall 51b. Even if dust is generated inside the left spreading case portion 46 or the right spreading case portion 47, it is difficult for the dust to hit the left partition wall 51a or the right partition wall 51b and adhere to the scattering electric motor 59.

As shown in FIG. 5, drain holes 80 are opened at two locations in the front-rear direction of the bottom wall portion 44a. As shown in FIG. 11, plug members 81 are attached to the two drainage holes 80. As shown in FIG. 11, the plug member 81 includes a plug head 81a arranged on the inner surface side of the bottom wall portion 44a in a state of having an outer diameter larger than the hole diameter of the drain hole 80, and a plug head 81a. The plug shaft portion 81b extends downward and is inserted into the drainage hole 80. As shown in FIGS. 11 and 15, a shaft recessed portion 82 is formed on the outer peripheral portion of the plug shaft portion 81b over the entire length of the plug shaft portion 81b. Inside the drainage hole 80, a gap is formed by the shaft recessed portion 82 between the plug shaft portion 81b and the bottom wall portion 44a. At the lower part of the plug head 81a, a head recessed portion 83 is formed along the radial direction of the plug member 81 and communicated with the shaft recessed portion 82. On the upper surface side of the bottom wall portion 44a, a gap is formed by the head recessed portion 83 between the plug head portion 81a and the bottom wall portion 44a. In the present embodiment, as shown in FIG. 15, the shaft recessed portions 82 are formed at four locations in the circumferential direction of the plug shaft portion 81b, and the head recessed portions 83 are provided at each of the four shaft recessed portions 82. Correspondingly, it is formed at four positions of the plug head 81a, but it is not limited to this. For example, three or less or five or more shaft recesses 82 may be adopted. Further, a smaller number of head recessed portions 83 than the shaft recessed portions 82, that is, head recessed portions 83 that communicate with only some of the plurality of shaft recessed portions 82 may be employed. The shaft recessed portion 82 may be formed in a spiral shape depending on the length of the plug shaft portion 81b.

The water that has entered the driving mechanism case portion 44 flows into the head recessed portion 83, flows from the head recessed portion 83 into the shaft recessed portion 82, and flows out from the shaft recessed portion 82 to below the bottom wall portion 44a. Even when the water splashed under the powder-and-particles spraying device 30 is directed toward the drainage hole 80, the plug shaft portion 81b entering the drainage hole 80 becomes an obstacle, and it is difficult for the water to enter the drainage hole 80. Even if water enters the shaft recessed portion 82, the plug head 81a located above the shaft recessed portion 82 becomes an obstacle, and the head recessed portion 83 extends in a direction intersecting the shaft recessed portion 82. Therefore, the water that has entered the shaft recessed portion 82 is unlikely to enter the inside of the driving mechanism case portion 44.

12 and 13 are perspective views showing the entire feeding supply case portion 43, the driving mechanism case portion 44, the left spreading case portion 46, and the right spreading case portion 47 in the disassembled state of the feeding supply case 40. As shown in FIGS. 12 and 13, the feeding supply case 40 is configured to be dividable into a feeding supply case portion 43, a driving mechanism case portion 44, a left spreading case portion 46, and a right spreading case portion 47.

As shown in FIGS. 12 and 13, the feeding supply case part 43 includes a front connecting part 91 provided at both lateral end parts of the front part and a rear first part provided at a central part of the rear part in the lateral width direction. A connecting portion 92 and a rear second connecting portion 93 provided on both lateral sides of the rear first connecting portion 92 are provided.

As shown in FIGS. 12 and 13, the driving mechanism case part 44 includes a front lateral connecting part 94 provided at the upper end portions of the left and right lateral wall parts 51d and a rear connecting part provided at the rear end part of the bottom wall part 44a. It includes a portion 95, a left spraying auxiliary plate portion 96 extending laterally leftward from the front portion of the left partition wall 51a, and a right spraying auxiliary plate portion 97 extending laterally rightward from the front portion of the right partition wall 51b. A left support portion 98 is formed at the tip of the left spreading auxiliary plate portion 96. A right support portion 99 is formed at the tip of the right spraying auxiliary plate portion 97.

As shown in FIGS. 12 and 13, the left spreading case portion 46 includes a first connecting portion 100 formed at the left end portion and a second connecting portion 101 formed at the rear portion. The right spreading case portion 47 includes a first connecting portion 102 formed at the right end portion and a second connecting portion 103 formed at the rear portion.

The left and right front connecting parts 91 of the feeding supply case part 43 and the left and right front horizontal connecting parts 94 of the driving mechanism case part 44 are connected by a connecting screw, and the rear first connecting part 92 of the feeding supply case part 43 and the prime mover. The driving mechanism case part 44 is connected to the lower part of the feeding supply case part 43 by being connected to the rear connection part 95 of the structure case part 44 by a connecting screw.

The first connecting portion 100 of the left spreading case portion 46 is connected to the left supporting portion 98 of the driving mechanism case portion 44 by a connecting screw, and the second connecting portion 101 of the left spreading case portion 46 is located on the left rear side of the feeding supply case portion 43. The left spreading case part 46 is connected to the second connecting part 93 by a connecting screw, is connected to the driving mechanism case part 44, and is supported by the feeding supply case part 43.

The first connecting portion 102 of the right spreading case portion 47 is connected to the right supporting portion 99 of the driving mechanism case portion 44 by a connecting screw, and the second connecting portion 103 of the right spreading case portion 47 is located on the right rear side of the feeding supply case portion 43. The right spreading case portion 47 is connected to the second connecting portion 93 by a connecting screw, is connected to the driving mechanism case portion 44, and is supported by the feeding supply case portion 43.

[Another embodiment]
(1) In the above-described embodiment, the example in which the left guide plate 71, the left diffusion guide 72, the right guide plate 61, and the right diffusion guide 62 are provided is shown. However, the left guide plate 71 and the right guide plate 61 are provided, The left diffusion guide 72 and the right diffusion guide 62 may not be provided. Further, the left guide plate 71, the left diffusion guide 72, the right guide plate 61 and the right diffusion guide 62 may not be provided.

(2) In the above-described embodiment, the example in which the metal supporting member 50 is provided is shown, but the metal supporting member 50 may not be provided and the feeding electric motor 57 may be directly supported by the driving mechanism case portion 44. Good.

(3) In the above-described embodiment, an example in which the drainage hole 80 is provided is shown, but the drainage hole 80 may not be provided.

(4) In the above-described embodiment, the example in which the powdery or granular material spraying device 30 is equipped in the riding type rice transplanter capable of planting 8 rows is shown. It may be equipped with a rice transplanter.

(5) In the above-described embodiment, an example in which the powdery- or granular-material spraying device 30 is configured to supply the medicine has been described, but the present invention is not limited to this. For example, it may be one that supplies various powders such as fertilizer.

INDUSTRIAL APPLICABILITY The present invention is not limited to chemicals, and can be applied to a powder-particle dispersal device that supplies various powder particles such as fertilizer. The present invention can be applied not only to the riding-type rice transplanter but also to the powdery- or granular-material spraying device mounted on various working machines such as a direct seeder and a fertilizer applicator.

30A Powder tank 30B Feeding supply section 40 Feeding supply case 43 Feeding supply case section 44 Drive mechanism case section 45 Electric drive mechanism 46 Left spray case section 46a Left spray port 46t Left case edge 47 Right spray case 47a Right spray Mouth 47t Right case part edge 48 Feeding supply member 50 Metal support member 51a Left partition wall 51b Right partition wall 55 Left scattering member 56 Right scattering member 57 Feeding electric motor 59 Scattering electric motor 59a Left output shaft 59b Right output shaft 61 Right guide Plate 61t Right guide plate edge 62 Right diffusion guide 71 Left guide plate 71t Left guide plate edge 72 Left diffusion guide 80 Drainage hole 81 Plug member 81a Plug head 81b Plug shaft part 82 Shaft recessed part 83 Head recessed part Z gap

Claims (10)

A powder and particle dispersal device installed in a work machine,
A granular material tank that stores the granular material that is sprayed in the field,
Connected to the lower part of the powder/aggregate tank, the powder/granule is delivered from the powder/granule tank, and the delivered powder/granular material is diffused in the left/right direction behind the working machine and is supplied to the farm field. , Are provided,
The feeding supply unit is a drivable left scattering member that scatters the granular material to the left, a drivable right scattering member that scatters the granular material to the right, and the granular material inside the granular material tank. A feeding supply member that supplies the left scattering member and the right scattering member, an electric driving mechanism that outputs power to the feeding supply member, the left scattering member and the right scattering member, the feeding supply member, and the left. A scattering member, the right scattering member and the feeding supply case that is connected to the powder and granular material tank while accommodating the electric driving mechanism,
The feeding supply case accommodates the feeding supply member and is connected to the granular material tank, and a driving mechanism that accommodates the electric driving mechanism and is connected to a lower portion of the feeding supply case. A case part, a left spreading case part that accommodates the left scattering member and is connected to the driving mechanism case part in a state where the left spraying port is opened downward, and a right scattering port that accommodates the right scattering member. A powdery- or granular-material spraying device configured to be divided into a right spraying case part connected to the drive mechanism case part in a state of being opened downward. Provided along the inner surface of the left scattering case portion, the powder particles scattered by the left scattering member is hit, and a left guide plate for guiding the hit powder particles to diffuse to the left is provided,
A right guide plate that is provided along the inner surface of the right spreading case portion, is contacted by the powder particles scattered by the right scattering member, and guides the hit powder particles so as to diffuse to the right. The powdery or granular material spraying device according to claim 1. Provided on the guide surface of the left guide plate is a left diffusion guide for guiding the powder particles scattered by the left scattering member so as to diffuse to the left,
The powdery or granular material according to claim 2, further comprising a right diffusion guide projecting from the guide surface of the right guide plate and configured to guide the powdery or granular material scattered by the right scattering member so as to diffuse rightward. Spraying device. The left guide plate is provided in an inclined state of the upper left,
The left diffusion guide is provided in an upper left state with an inclination angle steeper than the inclination angle of the left guide plate,
The right guide plate is provided in an inclined state of the upper right,
4. The powdery or granular material spraying device according to claim 3, wherein the right diffusion guide is provided in a state of an upper right of an inclination angle steeper than an inclination angle of the right guide plate. A gap is formed between a left case portion edge portion along the left spray port of the left spray case portion and a left guide plate edge portion of the left guide plate facing the left spray port,
A gap is formed between a right case portion edge portion of the right spray case portion along the right spray port and a right guide plate edge portion of the right guide plate facing the right spray port. Item 3. The powdery or granular material spraying device according to any one of items 3 to 4. The drive mechanism case is made of resin,
The electric prime mover includes a feeding electric motor that outputs power toward the feeding supply member,
The powdery or granular material spraying device according to any one of claims 1 to 5, further comprising a metal supporting member provided inside the driving mechanism case portion and supporting the feeding electric motor. The powdery- or granular-material spreading device according to claim 6, wherein the feeding supply member is supported by the metal supporting member. The electric prime mover includes one scatter electric motor that includes a left output shaft on which the left scatter member is supported so as not to rotate relative to it, and a right output shaft on which the right scatter member is supported to prevent relative rotation. The powdery or granular material spraying device according to any one of claims 1 to 7. An opening through which the left output shaft is inserted is formed so as to stand between the motor body of the scattered electric motor and the left scattering member, and is provided upright from the bottom wall portion of the driving mechanism case portion. And a left partition wall that partitions the interior of the driving mechanism case from the interior of the
The right spreading case portion is formed with an opening vertically extending from the bottom wall portion of the driving mechanism case portion between the motor body of the scattering electric motor and the right scattering member, and through which the right output shaft is inserted. 9. The powdery or granular material spraying device according to claim 8, further comprising a right partition wall that partitions the inside of the engine from the inside of the drive mechanism case. A drainage hole provided in the bottom wall of the driving mechanism case, and a plug member attached to the drainage hole,
The plug member has a plug head portion having an outer diameter larger than the hole diameter of the drain hole, and a plug shaft portion extended from the plug head portion and inserted into the drain hole.
On the outer peripheral portion of the stopper shaft portion, a shaft recessed portion is formed over the entire length of the stopper shaft portion,
The head recessed portion is formed in a lower portion of the plug head in a state of being along the radial direction of the plug member and in a state of communicating with the shaft recessed portion. Of powder and granular material.

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