JP5513140B2 - Powder and particle feeder - Google Patents

Description

  The present invention intermittently feeds the granular material from the tank by a set amount by a feeding mechanism, supplies the granular material fed by the feeding mechanism to a field by natural fall, and the feeding mechanism includes a plurality of feeding mechanisms on a circumferential surface. The present invention relates to a granular material supply apparatus that includes a feeding rotary body that is freely rotatable and formed with feeding concave portions arranged in the circumferential direction.

  In the above-described granular material supply apparatus, the feeding concave portion is provided with a receiving portion that receives the granular material above the feeding rotary body, and the feeding concave portion rotates up and down through the receiving portion by the rotation of the feeding rotary body. When the concave portion is positioned at the receiving portion, the granular material flows into the feeding concave portion, and when the feeding concave portion moves downward from the receiving portion, the granular material flows out from the feeding concave portion, so that the feeding mechanism sets the granular material from the tank. It is configured to intermittently pay out the amount.

  In this type of granular material supply device, as the feeding recess moves downward from the receiving portion, the opening of the feeding recess changes sequentially from upward to horizontal and from horizontal to downward. When the granular material starts to flow out of the feeding recess due to the opening of the concave portion being close to the horizontal direction, the granular material is a little while the distance that the feeding concave portion has moved down from the receiving portion is short. It begins to flow out gradually, and it takes a relatively long time to discharge the entire amount of the granular material received by the feeding recess, and the granular material dropped and supplied to the field is relatively in the moving direction of the granular material supply device. It will be supplied in a long dispersed state, so-called strip seeding or near strip seeding.

  Conventionally, for example, there has been a powder and particle supply device disclosed in Patent Document 1. In what was shown by patent document 1, as shown in FIG. 5, the guide plate located along the surrounding surface of a delivery rotary body is provided. The guide plate closes the feeding recess until it moves downward by a predetermined distance from the receiving portion, and releases the closing action for the feeding recess that moves downward beyond the predetermined distance from the receiving portion.

  If the technique described in Patent Document 1 is applied, a state in which the powder particles dropped and supplied to the field are supplied together in a relatively narrow range in the moving direction of the powder material supply device, a so-called spot seeding state Thus, it becomes possible to supply the granular material to the field.

  In other words, if the length of the guide surface facing the peripheral surface of the feeding rotary body of the guide plate is set appropriately in the circumferential direction of the feeding rotary body, the discharge portion for the feeding recess is provided below the feeding rotary body from the receiving portion. Even if the opening of the feeding recess is close to the horizontal direction or the horizontal direction until the feeding recess moving downward from the receiving portion reaches the discharge portion, the feeding recess is guided by a predetermined distance. If the powder recesses that are closed by the plate and do not flow out from the feeding recess and move downward from the receiving portion reach the discharge portion, the opening of the feeding recess faces downward and the feeding recess is closed by the guide plate. It is cancelled | released and it can be made for a granular material to flow out comparatively from the feeding recessed part, and to fall.

JP-A-5-49312 (paragraph [0013], FIG. 5)

As powder granules to be supplied to the field, seed pods (hereinafter referred to as iron-coated potatoes) that have been coated with iron powder may be employed. Since the iron-coated reed is not subject to bird catching, it can be advantageously supplied such that the covering soil after being supplied to the field can be omitted. However, in the case of applying the technology related to the conventional guide described above, when the iron coating rod is supplied, a part of the iron coating rod is caused due to the clogging or posture of the iron coating rod entering the feeding recess. When it protrudes to the outside from the feeding recess, peeling of the coating due to contact with the guide plate may occur on the iron coating rod.

  The object of the present invention is not only to supply powder particles in the state of spotting, but also to avoid troubles such as coating peeling even in the case of powder particles such as seeds that have been subjected to iron coating treatment. It is in providing a granular material supply apparatus.

According to the first aspect of the present invention, a granular material is intermittently fed from a tank by a set amount by a feeding mechanism, the granular material fed by the feeding mechanism is supplied to a field by natural fall, and the feeding mechanism is disposed on a circumferential surface. In the powder and granular material supply apparatus configured to include a feed rotating body that can be driven and rotated in which a plurality of feeding recesses are arranged in the circumferential direction,
A guide body positioned along a peripheral surface of the feeding rotary body so as to close and act on the feeding concave section that moves downward from a receiving portion provided so as to receive the granular material above the feeding rotary body. Provided,
The guide body is configured so that the closing action on the feeding recess is released below the feeding rotating body, and the feeding recess discharges the granular material so that the discharging part appears below the feeding rotating body. ,
A guide surface facing the peripheral surface of the feeding rotary body of the guide body is configured to be elastically deformable in a radial direction of the feeding rotary body,
The center of one feeding recess of a pair of adjacent feeding recesses in the plurality of feeding recesses of the feeding rotating body in the feeding rotating body rotation direction and the center of the other feeding recess in the feeding rotating body rotation direction are fed out. The plurality of feeding recesses are arranged so as to be arranged at a set recess array angle in the rotating body rotation direction,
A straight line passing through the starting end of the guide surface of the guide body and the rotation axis of the feeding rotary body, and a straight line passing through the rotation axis of the feeding rotary body intersect at a set guide angle. Set the length of the guide surface in the direction of rotation of the feeding rotor,
Setting the set recess array angle in the feeding rotary body to an angle that is greater than or equal to the set guide angle and less than or equal to 180 degrees in the guide body ;
A scraping brush is provided between the receiving portion and the guide body to act on the feeding recess.
An operation state in which the guide body and the scraping brush are integrated and closed in the feeding recess, and an outer peripheral side of the feeding rotary body so as to form a discharge passage for powder particles on the outer peripheral side of the feeding rotary body It is supported so that it can be switched to an action-released state in which is opened.

According to the construction of the first invention, by setting the length at the feeding rotary member rotation direction of the guide surface of the guide member to the appropriate length, suitable distance from the receiving portion to discharge portion below the rotating pay-out member Even if the feeding recess is moved downward from the receiving portion and the opening of the feeding recess is in a horizontal direction or a horizontal orientation, until the feeding recess reaches the discharge portion, The feeding recess is closed by the guide surface of the guide body so that the powder particles do not flow out of the feeding recess, and the feeding recess moved downward from the receiving portion reaches the discharge portion, so that the opening of the feeding recess becomes downward. The closing of the feeding recess by the guide surface of the guide body is released, and the granular material can flow out from the feeding recess relatively quickly and fall.

  When seeds such as iron-coated cocoons are supplied, a relatively strong contact between the powder body and the guide surface of the guide body occurs due to the occurrence of a powder body part of which protrudes from the feeding recess. However, since the guide surface is configured to be elastically deformable in the radial direction of the feeding rotary body, the guide surface is deformed and the strong friction between the powder and the guide surface can be relieved.

According to the construction of the first invention, even if there is a part protruded granular material from the feeding recess in the extending recessed portion to move downward toward the discharge portion from the receiving portion by the influence of the run-off granular material, protruding It is easy to avoid the powder particles from coming out from the feeding recesses that move down prior to the feeding recesses where the powder particles exist.

In other words, if the preceding feeding recess and the subsequent feeding recess both face the guide surface in a state where the entire opening of the preceding feeding recess and the entire opening of the subsequent feeding recess are closed by the guide surface, guide exists partially run-off granular material from the feeding recess in the feeding recess, even at the end side of the guide body by the influence of the deformation of the guide surfaces generated in the starting end side of the guide body for run-off granular material If deformation of the surface may occur, and if the deformation of the guide surface on the terminal end side of the guide body may increase, the gap between the preceding feeding recess and the guide surface becomes large, and powder from the preceding feeding recess Particles may come out.

  According to the configuration of the first aspect of the present invention, the center of one feeding recess of the pair of adjacent feeding recesses in the rotation direction of the feeding rotor and the center of the other feeding recess in the direction of rotation of the feeding rotor are the feeding rotor. A plurality of feeding recesses are arranged in the rotation direction so as to be arranged at a set recess arrangement angle, a straight line passing through the starting end of the guide surface and the rotation axis of the feeding rotor, the end of the guide surface, and the feeding rotor Set the length of the guide surface in the direction of rotation of the feed rotator so that the straight line passing through the axis of rotation intersects at the set guide angle, and the set recess arrangement angle in the feed rotator is greater than or equal to the set guide angle in the guide body Since the angle is set to 180 degrees or less, even if both the preceding feeding recess and the following feeding recess face the guide surface, the upper side of the opening of the succeeding feeding recess is on the upper side in the moving direction of the feeding recess. A state in which a part of the opening of the subsequent feeding recess is exposed from the guide surface and the entire opening of the subsequent feeding recess faces the guide surface. Can appear. That is, while the entire opening of the preceding feeding recess faces the guide surface, the subsequent feeding recess does not yet face the guide surface, or even if the subsequent feeding recess faces the guide surface. It is possible to present a state in which the entire opening of the feeding recess is not yet opposed to the guide surface, and a part of the opening of the subsequent feeding recess on the upper side in the feeding recess moving direction is out of the guide surface.

Even entire opening of the preceding feeding recess is located opposite the guide surface, the whole of the opening of the subsequent feeding recess when not yet facing the guide surface, granular material protruding in the subsequent feeding recess is present even, protruding deformation of the guide surface is not generated granule is in the starting end side of the guide body without contact with the guide surface, due to the granular material which protrudes in the subsequent feeding recess even at the end side of the guide body The guide surface is not deformed, and a large gap is not generated between the preceding feeding recess and the guide surface.

Even if both the preceding feeding recess and the following feeding recess face the guide surface, if a part of the opening of the succeeding feeding recess on the upper side in the feeding recess moving direction is out of the guide surface, the subsequent feeding even in the presence of the run-off granular material in the recess, the feeding recess is moving direction upstream side in the submitted operation guide surface in the interior of the feeding recess by the contact between the end of the run-off granular material guide member hardly contact, the deformation of the guide surface is also less likely to occur in the guide body beginning deformation guide surface due to run-off granular material in the side is less likely to occur guide body end side of the preceding feeding recess There is no large gap between the guide surfaces.

Even to face the whole of the opening of the subsequent feeding recess in the guide surface, the whole of the opening of the preceding feed recess has already deviated from the guide surface, granular material protruding in the subsequent feeding recesses exist Guide deformation Ruga id surface put on the starting end side of the body occurs, this deformation even deform the guide surface at the end side of affecting the end-side guide member of the guide member occurs, this deformation, preceding Does not affect the feeding recess.

Therefore, the granular material is discharged by the feeding recess moved downward from the receiving portion relatively quickly at the discharging portion relatively away from the receiving portion, and the granular material is supplied to the field in the state of spotting with good spotting accuracy. In addition, even when supplying powder particles such as iron-coated iron, it is possible to avoid the occurrence of strong friction between the powder particles and the guide surface, and to prevent damage to powder particles such as coating peeling. Powder particles can be supplied. Moreover, even particulate material protruding in the subsequent feeding recess is generated, the run-off by the influence of the particulate material tends to avoid granule from the feeding recess prior will exit point播精degree from the surface However, it is possible to supply the granular material in a state of good spot seeding.

  According to the second aspect of the invention, a base member fixed to the machine body side of the feeding mechanism, a film body that forms the guide surface and is elastically deformable in a radial direction of the feeding rotating body, and receives and supports the film body. As described above, the guide body is configured by including a cushion material that is interposed between the film body and the base material and is elastically deformable in the radial direction of the feeding rotating body.

  According to the configuration of the second aspect of the present invention, when a seed such as an iron-coated cocoon is supplied, a powder that partially protrudes from the feeding recess is generated. Even if strong contact occurs, the guide surface is formed of an elastically deformable film body, and the film body and the cushion material are deformed by supporting the film body with an elastically deformable cushion material. Thus, the strong friction between the granular material and the guide surface can be effectively relieved.

  As a result of providing the cushion material with characteristics that facilitate deformation of the guide body due to the contact between the powder and the guide surface, even if the cushion material has low wear resistance, high wear resistance is applied to the guide surface. The elastic deformation due to the contact of the guide body with the powder particles can be easily generated while preventing the guide surface from being worn out at an early stage.

  Therefore, the granular material is discharged from the feeding recess moved downward from the receiving portion at a relatively short time at the discharging portion that is relatively far from the receiving portion, and the granular material is supplied to the field in the state of precise spotting. Furthermore, even when supplying powder particles such as iron-coated iron, the generation of strong friction between the particles and the guide surface is avoided by elastic deformation of the film body and cushioning material, as in coating peeling. The granular material can be supplied in a state in which the granular material is hardly damaged.

In the third aspect of the invention, the guide body and the scraping brush are integrally and detachably supported.

According to the configuration of the third aspect of the invention, the vicinity of the peripheral surface of the feeding rotary body can be opened by removing the guide body and the scraping brush together .

  Therefore, when performing operations such as cleaning and inspection of the feeding rotator, the peripheral surface of the feeding rotator can be opened easily and efficiently even if the feeding rotator is mounted on the feeding mechanism. it can.

  In the fourth aspect of the invention, a supply speed change mechanism for changing the driving speed of the feeding rotary body is provided.

  According to the configuration of the fourth aspect of the invention, the drive speed of the feeding rotator is adjusted to the predetermined interval by changing the driving speed of the feeding rotator to the low speed side by the supply changing mechanism, or the driving speed of the feeding rotator is increased by the supply changing mechanism. By changing to the side, it is possible to adjust the interval of spotting to the small interval side.

  Therefore, adjust the sowing interval to a predetermined interval and supply the powder in a state where the sowing accuracy is good, or adjust the dot sowing interval to the small interval side to supply the powder in a state like a row sowing. Can be.

  In the fifth aspect of the present invention, a plurality of the feeding mechanisms are arranged side by side in a direction along the rotation axis of the feeding rotating body, and the output of the supply transmission mechanism is transmitted to the feeding rotating bodies of the plurality of feeding mechanisms. The supply speed change mechanism is configured as described above, and the supply speed change mechanism of the plurality of payout mechanisms is arranged with respect to the endmost payout mechanism located in the end in the direction along the rotation axis. It arrange | positions on the opposite side to the side in which the other delivery mechanism except the said extreme end delivery mechanism is located.

  According to the configuration of the fifth aspect of the present invention, even if the supply speed change mechanism is as close as possible to the feed mechanism, it is not damaged by the feed mechanism from the side opposite to the side where the feed mechanism is located with respect to the supply speed change mechanism. The supply transmission mechanism can be operated.

  Therefore, it is possible to obtain a compact state in which the supply transmission mechanism is brought close to the feeding mechanism as much as possible, but it is easy to operate the supply transmission mechanism easily and easily without being disturbed by the feeding mechanism, thereby efficiently adjusting the interval between the seedings. Can be done well.

It is a side view which shows the whole paddy field vehicle. It is a rear view which shows a granular material supply apparatus. It is a side view which shows a granular material supply apparatus. It is a rear view which shows a part of granular material supply apparatus. It is a diagram which shows a transmission device in the state by which the supply transmission mechanism was switched to the low speed state. It is a diagram which shows a transmission device in the state by which the supply transmission mechanism was switched to the high speed state. It is a vertical side view which shows a feeding mechanism. It is a vertical rear view which shows a feeding mechanism. It is a vertical side view which shows the feeding mechanism in the state by which the scraping brush, the cover, the granular material guide, and the guide body are switched to the action release state. It is explanatory drawing which shows the effect | action of the length of a guide body, arrangement | positioning of a feeding recessed part, and a guide body. (A) is the vertical side view which shows the feeding mechanism provided with another embodiment, (b) is a vertical side view which shows the state from which the guide body of the feeding mechanism of another embodiment was removed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing the entirety of a paddy field vehicle equipped with a granular material supply device 20 according to an embodiment of the present invention. As shown in this figure, a paddy field work vehicle is a self-propelled vehicle that is self-propelled by a pair of left and right steering operations and driveable front wheels 1 and 1 and a pair of left and right driveable rear wheels 2 and 2, The granular material supply device 20 connected to the rear part of the body frame 3 of the self-propelled vehicle via the link mechanism 4, and the medicine spraying device attached to the machine body frame 21 of the granular material supply device 20 via the support column 31. 30 and a fertilizer applicator 40 equipped with a fertilizer tank 41 located at the rear of the vehicle body of the self-propelled vehicle.

  The self-propelled vehicle includes an engine 5 provided at the front portion of the vehicle body frame 3, and the driving force output from the engine 5 is input to the transmission case 6 located at the front portion of the vehicle body, and the driving force input to the transmission case 6 is input. Is transmitted from the traveling mission located inside the mission case 6 to the front wheel drive case 7 to drive the pair of left and right front wheels 1, 1, and the driving force from the engine 5 input to the mission case 6 is rotated from the traveling mission. It transmits to the rear-wheel drive case 9 located in the vehicle body rear part via the axis | shaft 8, and drives a pair of left and right rear wheels 2,2. The self-propelled vehicle includes a driving unit 10 having a driving seat 10a provided at the rear part of the vehicle body, and is a riding type so as to ride on the driving unit 10 for driving. The self-propelled vehicle receives the driving force from the engine 5 input to the mission case 6 from the work mission located inside the mission case 6 to the rotary shaft 11 located below the body frame 3 and the rear of the rotary shaft 11. It transmits to the input case 81 of the granular material supply apparatus 20 via the rotating shaft 12 extended toward the vehicle body back direction from the edge part.

  The link mechanism 4 includes a hydraulic cylinder 13 connected to the vehicle body frame 3 and the rear end side of the lower link 4 a of the link mechanism 4, and is pivoted up and down with respect to the vehicle body frame 3 by the hydraulic cylinder 13. As a result, the powder supply device 20 is moved down from the field by the lowering work position where the four grounding floats 23 positioned in the horizontal direction of the vehicle body are grounded to the field, and the grounding floats 23 are lifted from the field. Move up and down to the raised non-working position.

  When the paddy field work vehicle lowered the granular material supply device 20 to the lowering operation position and caused the self-propelled vehicle to travel, the powder material supply device 20 was the seed for rice and the iron coating process was performed. A seeding operation for supplying seed pod a to the field in six rows, a fertilizer supply operation for supplying fertilizer to the seed pod a of each row by the fertilizer application device 40, and a medicine for spraying a weed prevention drug to the field by the drug spraying device 30 Perform spraying work.

The granular material supply apparatus 20 is demonstrated.
FIG. 2 is a rear view showing the granular material supply device 20. FIG. 3 is a side view showing the granular material supply apparatus 20. FIG. 4 is a rear view showing a part of the granular material supply apparatus 20. As shown in these drawings and FIG. 1, the granular material supply device 20 includes the airframe frame 21 connected to the link mechanism 4 and the four grounding floats 23 attached to the lower part of the airframe frame 21. In addition, a pair of left and right powder tanks 24, 24 (hereinafter referred to as a powder tank 24) positioned in a row in the vehicle body lateral direction above the rear part of the machine frame 21, and the machine frame 21. It comprises six feeding mechanisms 50 attached to the rear part.

  The pair of left and right powder tanks 24 includes a tank body 24a and a lid body 24b supported by the tank body 24a so as to be able to swing open and close so as to open and close an opening located at the upper end of the tank body 24a. It is.

  The six feeding mechanisms 50 are in a state where the three feeding mechanisms 50 are connected to the lower part of the tank body 24a of each of the pair of left and right powder tanks 24, 24, and the six feeding mechanisms 50 are arranged in the lateral direction of the vehicle body. It is supported by the fuselage frame 21 in a line.

The granular material supply apparatus 20 intermittently feeds the seed meal a stored in the left granular material tank 24 from the granular material tank 24 by the three feeding mechanisms 50 on the left side by a set amount, and the right granular material tank. The seed meal a stored in 24 is intermittently delivered from the granular material tank 24 by the three delivery mechanisms 50 on the right side by a set amount, and the seed meal a delivered by each delivery mechanism 50 falls to the field leveled by the ground float 23. By doing so, six seed pods a are supplied to the field, and in each of the strips, a set amount of seed pod a supplied intermittently by the feeding mechanism 50 is the moving direction of the granular material supply device 20, that is, the self-propelled vehicle. It is supplied in the state of spot sowing that it falls into the field together in a narrow range in the moving direction.

  As shown in FIGS. 1, 2, and 5, the granular material supply device 20 is located one by one between the two grounding floats 23, 23 on the left side of the vehicle body and between the two grounding floats 23, 23 on the right side of the vehicle body. It is provided with a pair of left and right grooving bodies 25, 25 attached to the lower part of the machine body frame 21 in the arrangement, and the drainage groove by the left grooving body 25 in the field after the left rear wheel 2 of the self-propelled vehicle has passed. In the field after the rear wheel 2 on the right side of the self-propelled vehicle passes, a drainage groove is formed by the right groove body 25, and the muddy water remaining in the field after sowing work is drained into the drainage groove. Let it flow and drain water in the field after sowing.

The fertilizer application apparatus 40 will be described.
As shown in FIGS. 1, 2, and 3, the fertilizer application apparatus 40 includes the fertilizer tank 41, a fertilizer feeding mechanism 42 that is continuously provided at the lower portion of the fertilizer tank 41, and a fertilizer discharge portion of the fertilizer feeding mechanism 42. An electric blower 44 connected via a blower tube 43 is provided. The fertilizer feeding mechanism 42 includes six fertilizer discharge ports arranged in the lateral direction of the vehicle body. Each fertilizer discharge port of the fertilizer feeding mechanism 42 is supplied with fertilizer to a corresponding one of the six grooving fertilizers 45 (see FIG. 2) located in the lower part of the granular material supply device 20 in the lateral direction of the vehicle body. It is connected via a hose 46. Fertilizer feeding mechanism 42 is driven by a driving force taken out from the transmission system for transmitting the driving force from the run Gyomi cushions the rear-wheel drive case 9.

  The fertilizer application device 40 feeds the granular fertilizer stored in the fertilizer tank 41 from the fertilizer tank 41 to each fertilizer discharge port by the fertilizer feed mechanism 42 and feeds the fertilizer fed to each fertilizer discharge port by the electric blower 44. To the fertilizer supply hose 46. Each fertilizer supply hose 46 supplies the supplied fertilizer to the corresponding grooving fertilizer 45 by the conveyance wind from the electric blower 44. Each grooving fertilizer applicator 45 forms a groove in the field near the seed meal a supplied by the granular material supply device 20, and supplies fertilizer from the fertilizer supply hose 46 to the formed groove. Therefore, the fertilizer application apparatus 40 supplies fertilizer near the lateral side of each row seed pod a supplied to the field as the granular material supply device 20 performs the seeding operation of the six strips.

  The medicine spreader 30 includes an electric spreader 33 in which a spreader case 32 is connected to an upper end portion of the support 31 and a medicine tank 34 attached to the upper part of the electric spreader 33. The medicine stored in the tank 34 is taken out from the medicine tank 34 by the electric spreader 33 and spread on the field.

  The feeding mechanism 50 of the granular material supply device 20 will be described. The six feeding mechanisms 50 of the granular material supply device 20 have the same configuration.

  FIG. 7 is a longitudinal side view showing the feeding mechanism 50. FIG. 8 is a longitudinal rear view showing the feeding mechanism 50. As shown in these drawings and FIGS. 2, 3, and 4, the feeding mechanism 50 includes a feeding case 51 having an upper end connected to a hopper portion 24 c provided at a lower portion of the tank body 24 a of the powder tank 24, and A feeding rotator 52 provided inside the feeding case 51 so as to be able to be driven and rotated around a rotation axis P in the lateral direction of the vehicle body, and a guide body provided inside the feeding case 51 and disposed on the rear side of the feeding rotator 52 in the vehicle body. 53, a scraping brush 54 attached via a brush holder 54a near the upper end side of the guide body 53 inside the feeding case 51, a cover 55 whose base end is fixed to the brush holder 54a, and a feeding case 51 A seeding tube 56 having an upper end connected to the lower end is provided.

The feeding case 51 includes a front wall 51a, a rear wall 51b, and a pair of left and right lateral walls 51c , 51c, and has a cylindrical shape that faces the vehicle body vertically. The feeding case 51 is detachably connected to a support bar portion 21a facing the vehicle body of the body frame 21 at a connecting portion 51d provided on the outer surface side of the front wall 51a by a connecting bolt 21b. The feeding case 51 is provided above the feeding rotating body 52 by the supply guide piece 51e integrally formed over the inner surface side of the front wall 51a and the inner surface side of the pair of left and right lateral walls 51c, 51c, and the brush body 54b of the scraping brush 54. A receiving portion 57 for the feeding rotary body 52 is formed. The receiving portion 57 is located in the receiving portion 57 by allowing the seed pod a flowing down from the granular material tank 24 through the supply hole 24 d provided at the bottom of the granular material tank 24 to stay on the upper side of the feeding rotary body 52. By allowing seed pod a to flow into the feeding recess 58 of the feeding rotary body 52 by natural flow, the seed cocoon a of the feeding recess 58 is received.

  The feeding rotary body 52 is supported by a rotating support shaft 59 formed of a hexagonal shaft facing the vehicle body rotatably supported by a support portion 51f provided in a pair of left and right lateral walls 51c, 51c of the feeding case 51. The support shaft 59 is rotationally driven in the rotation direction F (see FIG. 7) around the rotation axis P of the vehicle body with which the rotation support shaft 59 is provided. The feeding rotator 52 includes the four feeding recesses 58 provided on the circumferential surface 52 s of the feeding rotator 52 side by side in the circumferential direction of the feeding rotator 52.

  As shown in FIG. 7, the guide body 53 has a base material 53a made of a stainless steel plate whose base is fixed to the hair planting portion 54c of the scraping brush 54, and one side surface bonded to the inner surface side of the base material 53a. And a film body 53c bonded to the side surface of the cushion material 53b opposite to the side to which the base material 53a is connected.

As shown in FIGS. 7 and 10, the base portion of the base material 53 a is fixed to the hair planting portion 54 c of the scraping brush 54. Thereby, the base material 53a is fixed to the feeding case 51 as the machine body of the feeding mechanism 50 via the hair planting portion 54c, the brush holder 54a, and the support shaft 54d connecting the brush holder 54a to the feeding case 51. Yes. The cushion material 53b is made of sponge so as to be elastically deformed in the radial direction of the feeding rotary body 52. The film body 53 c forms a guide surface 53 d that faces the peripheral surface 52 s of the feeding rotary body 52. The guide surface 53d of the guide body 53 is a range from the start end S located at the end where the scraping brush 54 is located to the end E located at the end opposite to the side where the scraping brush 54 is located. , The seeding a is prevented from spilling out from the feeding recess 58 by closing the feeding recess 58 of the feeding rotary body 52 . The starting end S of the guide surface 53d of the guide body 53 is disengaged from the granular material guide 60 connected to the end portion of the surface of the film body 53c on the side where the feeding rotating body 52 of the cover 55 is located. This is where the body 52 starts to face the peripheral surface 52s. The end E of the guide surface 53d of the guide body 53 is a portion of the surface of the film body 53c that finishes facing the peripheral surface 52s of the feeding rotary body 52. The film body 53c is elastically deformed in the radial direction of the feeding rotary body 52, and has higher wear resistance than the cushion material 53b and lower frictional resistance than the cushion material 53b with respect to the seed pod a subjected to the iron coating process. It is comprised with the ultra high molecular resin material shape | molded in the sheet form so that it may exhibit.

  The end E at which the closing action of the guide body 53 on the feeding recess 58 is completed is below the feeding rotary body 52, and is a vertical line H passing through the rotational axis P of the feeding rotary body 52 and the rotational axis P of the feeding rotary body 52. The guide body 53 exposes a discharge portion 61 for the feeding rotary body 52 at a location deviated from the end E of the guide surface 53d. When the feeding recess 58 moved downward from the receiving portion 57 reaches the discharging portion 61, the discharging portion 61 releases the seeding a from the feeding recess 58 by releasing the closing action of the guide surface 53 d on the feeding recess 58. .

The sowing cylinder 56 prevents the seed pod a falling from the discharge section 61 from being hit by wind, causes the seed pod a dropped from the discharge section 61 to be accurately aligned with the set supply location on the mud surface of the field and dropped, and A set amount of seed pod a discharged from one feeding recess 58 is dropped to a set supply location in a state where it is gathered so as not to be dispersed in the longitudinal direction and lateral direction of the vehicle body.

  Accordingly, each feeding mechanism 50 of the granular material supply device 20 is configured such that when the rotation support shaft 59 is driven to rotate, the supply rotation body 52 is driven in the rotation direction F by the rotation support shaft 59, so The stored seed pod a is intermittently delivered to the discharge unit 61 by a set amount by the supply recess 58 of the supply rotary body 52, and the set amount of seed pod a that has been supplied is naturally dropped from the discharge unit 61 and supplied to the mud surface of the field. To do.

  That is, when the feeding rotary body 52 is driven, each feeding recess 58 rotates in the rotational direction F and moves up and down through the receiving portion 57 and the discharging portion 61. When the feeding concave portion 58 moves upward from the discharge portion 61 and reaches the receiving portion 57, the opening of the feeding concave portion 58 is directed upward, and the seed potato a that flows down from the powder tank 24 to the receiving portion 57 is fed out. By flowing into the concave portion 58 by natural flow, the feeding concave portion 58 receives and accommodates the seed pod a. The feeding recess 58 containing the seed pod a moves downward from the receiving portion 57 and reaches the brush body 54 b of the scraping brush 54. The feeding recess 58 that reaches the brush body 54 b of the scraping brush 54 is subjected to the scraping action by the brush body 54 b of the scraping brush 54, and the amount of the seed soot a accommodated in the feeding recess 58 depends on the capacity of the feeding recess 58. The amount is adjusted so that the set amount is determined or substantially set. The feeding recess 58 that has passed through the brush body 54 b of the scraping brush 54 passes through a location where the guide surface 53 d of the guide body 53 is located. The feeding recess 58 that passes through the guide surface 53d has the opening of the feeding recess 58 closed by the guide surface 53d. Even if the opening of the feeding recess 58 is in a horizontal direction or a downward direction close to the horizontal direction, Move down without letting out. At this time, even if there is a seed pod a partially protruding outside from the feeding recess 58, the guide surface 53d (film body 53c) and the cushion material 53b are fed out by contact of the seed pod a protruding from the feeding recess 58 and the guide surface 53d. The guide body 53 is elastically deformed to the side away from the peripheral surface 52s of the rotating body 52, and the guide body 53 relaxes the friction between the seed soot a and the guide surface 53d to prevent the iron coating of the seed soot a from peeling off. The feeding recess 58 that has passed through the guide surface 53 d of the guide body 53 reaches the discharge portion 61. When the feeding recess 58 reaches the discharge portion 61, the opening of the feeding recess 58 faces downward, and the guide surface 53d of the guide body 53 releases the closing action on the feeding recess 58, so that the seeds a naturally flow out from the feeding recess 58. As a result, the feeding recess 58 discharges the stored seed pod a by the discharge unit 61 and drops it onto the mud surface of the field by natural fall. At this time, the sowing cylinder 56 prevents the seed pod a falling from the discharge unit 61 from being hit by the wind, and accurately aligns the seed pod a dropped from the discharge unit 61 with the set supply location on the mud surface of the field. And, it is dropped without being dispersed so as to fall in a narrow range. The feeding concave portion 58 that has finished discharging the seed pod a moves upward from the discharging portion 61 toward the receiving portion 57.

As shown in FIG. 10, the four feeding recess 58 provided in the rotating pay-out member 52 is arranged aligned in the circumferential direction of the rotating pay-out member 52, a pair of fit Ri next in the four feeding recess 58 of the feeding recess 58, 58 The center of one feeding recess 58 in the feeding rotating body rotation direction F and the center of the other feeding recess 58 in the feeding rotating body rotation direction F are arranged in the feeding rotating body rotation direction F with a set recess array angle A therebetween. Set to an array.

  As shown in FIG. 10, the length of the guide surface 53 d provided on the guide body 53 from the start end S to the end E is defined as a straight line L 1 passing through the start end S and the rotation axis P of the feeding rotary body 52. The length is set such that a straight line L2 passing through the end E and the rotation axis P of the feeding rotary body 52 intersects at a set guide angle B. The set recess array angle A in the feeding rotary body 52 is set to an angle slightly larger than the set guide angle B in the guide body 53 and smaller than 180 degrees.

Accordingly, even if there is seeds a partially protruding from the feeding recess 58 in the extending recessed portion 58 for downward movement toward the receiving portion 57 to the discharge unit 61, under the influence of the run-off rice seeds a, run-off rice seed a presence It is easy to avoid the seed pod a from coming out from the feeding recess 58 that moves downward prior to the feeding recess 58.

  That is, as shown in FIG. 10A, even if the preceding feeding recess 58 and the succeeding feeding recess 58 are both opposed to the guide surface 53d, the lower of the opening of the preceding feeding recess 58 in the moving direction of the feeding recess. A part on the side and a part on the upper side in the feeding recess moving direction of the opening of the succeeding feeding recess 58 are in a state of being detached from the guide surface 53d. As shown in FIG. 10B, when the entire opening of the subsequent feeding recess 58 is opposed to the guide surface 53d, the entire opening of the preceding feeding recess 58 is already detached from the guide surface 53d. That is, the entire opening of the subsequent feeding recess 58 is closed by the guide surface 53d after the entire opening of the preceding feeding recess 58 is disengaged from the guide surface 53d.

Even if both the preceding feeding recess 58 and the following feeding recess 58 face the guide surface 53d, a part of the opening of the succeeding feeding recess 58 on the upper side in the feeding recess moving direction is separated from the guide surface 53d. if, even seeds a partially exiting lamina from the supply recess 58 for subsequent feeding recess 58 is present, the run-off rice seed a is the contact between the starting end of the guide body 53 of the feeding recess 58 hardly abuts to the operated the guide surface 53d closer to the feeding recess moving direction upstream side of the internal guide surface 53d due to the seeds a of protruding at the beginning side of the guide body 53 (film body 53c) and the cushion material 53b The deformation of the guide surface 53d (film body 53c) and the cushion material 53b on the terminal end side of the guide body 53 due to the influence of this deformation is less likely to occur, Feeding recess 58 and from the feeding recess 58 prior without large gap between the guide surface 53d is generated seeds a is hard to appear.

Even if the entire opening of the subsequent feeding recess 58 is opposed to the guide surface 53d, if the entire opening of the preceding feeding recess 58 has already deviated from the guide surface 53d, the seeds a that protrude from the subsequent feeding recess 58 are Even if the guide surface 53d is deformed on the start end side of the guide body 53 and the deformation affects the end side of the guide body 53 and the guide surface 53d on the end side of the guide body 53 is deformed, This deformation does not affect the preceding feeding recess 58.

  As shown in FIG. 7, the cover 55 is supported by the brush holder 54 a while being positioned between the guide body 53 and the scraping brush 54, and the scraping brush 54 of the cushion material 53 b of the guide body 53 is positioned. Covers the side edge. Therefore, even if the seed 55 a enters between the hairs of the brush main body 54 b of the scraping brush 54, the cover 55 receives the seed soot a by the operating surface of the cover 55 facing the scraping brush 54, and the seed soot a is cushioned. This prevents entry into the material 53b. The cover 55 is made of an ultra high molecular resin material molded into a plate shape, and has a wear resistance against the seed pod a subjected to the iron coating process.

As shown in FIG. 10, a powder guide 60 is continuously provided at the end of the cover 55 on the side where the feeding rotary body 52 is located. The granular material guide 60 extends from the end portion of the cover 55 toward the side where the feeding rotary body 52 is located, and the extended end side of the granular material guide 60 is the peripheral surface 52 s of the feeding rotary body 52 and the guide body 53. The film body 53c is configured to have a shape that enters between the end portions of the film body 53c. Therefore, the granular material guide 60 guides the seed soot a received by the cover 55 and flowing down along the soot receiving surface of the cover 55 so as to be discharged between the feeding rotary body 52 and the guide surface 53 d of the guide body 53. . Granules guide 60, be integrally molded to the cover 55, it is constituted by ultra high molecular resin material, and a wear resistance against seeds a iron coating process is performed.

  As shown in FIG. 7, the feeding mechanism 50 includes a switching lever 70 provided outside the feeding case 51. The switching lever 70 is connected to an end of a support shaft 54d that connects the brush holder 54a to the feeding case 51 so as to be integrally rotatable, and swings along the lever guide 71 around the axis of the support shaft 54d. By being operated, the support shaft 54d is rotated to switch the scraping brush 54, the cover 55, the granular material guide 60, and the guide body 53 between the action state and the action release state.

  FIG. 7 shows a state in which the scraping brush 54, the cover 55, the granular material guide 60, and the guide body 53 are switched to the operating state. As shown in this figure, the scraping brush 54, the cover 55, the granular material guide 60, and the guide body 53 act at once when the switching lever 70 is lowered around the axis of the support shaft 54d to the working position W. It becomes a state. That is, the scraping brush 54 has an attachment posture in which the bristles of the brush main body 54b are positioned along the peripheral surface 52s of the feeding rotary body 52, and the brush main body 54b is in a working state so as to scrape and act on the feeding recess 58. The guide body 53 has an attachment posture in which the guide surface 53d is positioned along the peripheral surface 52s of the feeding rotary body 52, and enters the operating state such that the guide surface 53d closes the feeding recess 58. The cover 55 and the granular material guide 60 are positioned between the scraping brush 54 in which the cover 55 is in operation and the end of the guide body 53 in the operational state, and the extended end of the granular material guide 60 is extended and rotated. The mounting posture enters between the peripheral surface 52s of the body 52 and the film body 53c of the guide body 53, and the cover 55 is in an operating state so as to cover the end of the cushion material 53b on the side where the scraping brush 54 is located. The granular material guide 60 is in an operating state so as to be positioned between the feeding rotary body 52 and the guide body 53. In this case, when the switching lever 70 is engaged with the first positioning recess provided in the lever guide 71, the switching lever 70 is held at the working position W by the first positioning recess, and the sliding brush 54 The cover 55, the granular material guide 60, and the guide body 53 are fixed in the operating state.

FIG. 9 is a longitudinal sectional side view showing the feeding mechanism 50 in a state where the scraping brush 54, the cover 55, the granular material guide 60, and the guide body 53 are switched to the action release state. As shown in this figure, the scraping brush 54, the cover 55, the granular material guide 60, and the guide body 53 act at once when the switching lever 70 is moved up around the axis of the support shaft 54d to the discharge position D. It becomes a release state. That is, the scraping brush 54 has an attachment posture in which the brush main body 54b is separated from the peripheral surface 52s of the feeding rotator 52 and the outer peripheral side of the feeding rotator 52 is opened, and the cover 55 and the granular material guide 60 are rotated. spaced apart from the circumferential surface of the body 52 52s becomes attached posture opening the outer peripheral side of the rotating pay-out member 52, the guide body 53, the guide surface 53d is put Repetitive spaced from the peripheral surface 52s of the rotating pay-out member 52 rotating body 52 The mounting posture is such that the outer peripheral side of the is opened.

Accordingly, when the scraping brush 54, the cover 55, the granular material guide 60, and the guide body 53 are switched to the action-released state, the discharge passage along the peripheral surface 52s of the feeding rotary body 52 is provided on the outer peripheral side of the feeding rotary body 52. 72 is formed. The discharge passage 72 allows the receiving portion 57 and the discharging portion 61 to communicate with each other, and allows the seed tank a remaining in the powder tank 24 and the receiving portion 57 to flow down to the discharging portion 61 and to be taken out from the discharging portion 61 to the ground. . In this case, the switching lever 70 is engaged with the second positioning recess provided in the lever guide 71, so that the switching lever 70 is held at the discharge position D by the second positioning recess, and the sliding brush 54, The cover 55, the granular material guide 60, and the guide body 53 are fixed to the action release state.

  As shown in FIGS. 2, 3, 5, and 7, the six feeding mechanisms 50 provided in the powder and granular material supply device 20 are in a direction along the rotational axis P of the feeding rotary body 52 and in the lateral direction of the vehicle body. The powder and granular material supply device 20 is arranged in a line, and the powder and granular material supply device 20 is arranged on the vehicle body front side of the feeding case 51 of each feeding mechanism 50 along the rotation support shaft 59 of the feeding rotating body 52 of each feeding mechanism 50. A transmission device 80 having a single transmission shaft 84 that passes in the direction is provided, and the transmission force from the engine 5 is transmitted to the rotation support shaft 59 of each feeding mechanism 50 by this transmission device 80 so that each feeding mechanism 50 The feeding rotary body 52 is driven.

  As shown in FIGS. 2, 3, and 5, the transmission device 80 includes the transmission shaft 84, an input case 81 provided at the center of the granular material supply device 20 in the lateral direction of the vehicle body, and granular material A supply transmission mechanism 90 provided at the lateral end of the supply device 20, a vehicle body lateral rotation shaft 82 provided across the front end side of the input case 81 and the front end side of the gear case 91 of the supply transmission mechanism 90, the transmission shaft 84, An on / off mechanism 85 provided over the rotation support shaft 59 of the feeding mechanism 50 is provided.

  The input case 81 inputs the driving force of the rotating shaft 12 through the input shaft 81a, and outputs the input driving force from the output gear 81b to the rotating shaft 82.

The on / off mechanism 85 mounted on the rotation support shaft 59 of each feeding mechanism 50 includes a clutch body 88 that is provided on the transmission shaft 84 so as to be integrally rotatable and slidable. by the engagement state of the clutch pawls provided in the transmission gear 87, switched to the oN state, the clutch 88 is disengaged operated from click latches pawl of the transmission gear 87, switched to the oFF state.

  When each ON / OFF mechanism 85 is switched to the ON state, the driving force of the transmission shaft 84 is transmitted to the pay-out driving gear 86 provided to be rotatable integrally with the rotation support shaft 59 via the clutch body 88 and the transmission gear 87. Then, when the feeding rotary body 52 is driven and switched to the OFF state, the clutch body 88 and the transmission gear 87 can be rotated relative to each other, the transmission to the feeding drive gear 86 is stopped, and the feeding rotary body 52 is stopped.

  As shown in FIG. 5, the supply transmission mechanism 90 includes a gear case 91 and also includes a first transmission gear 92 and a second transmission gear 93 housed in the gear case 91.

  The first transmission gear 92 and the second transmission gear 93 are configured to be freely replaceable with the rotating shaft 82 and the transmission shaft 84, and the outer diameter of the first transmission gear 92 is the same as that of the second transmission gear 93. The supply transmission mechanism 90 is set to be larger than the outer diameter, and the first transmission gear 92 and the second transmission gear 93 are replaced with the rotation shaft 82 and the transmission shaft 84, so that the high-speed state and the low-speed state. And switch to

  FIG. 6 is a diagram showing the transmission device 80 in a state where the supply transmission mechanism 90 is switched to the high speed state. As shown in this figure, the supply speed change mechanism 90 is switched to a high speed state by rotating the first transmission gear 92 to the rotation shaft 82 and the second transmission gear 93 to the transmission shaft 84, and rotating. The driving force of the shaft 82 is increased by the first transmission gear 92 and the second transmission gear 93 and output to the transmission shaft 84, and the six on / off mechanisms 85 are switched to the on state, thereby increasing the speed. The subsequent driving force is transmitted to the feeding rotary body 52 of the six feeding mechanisms 50.

  FIG. 5 is a diagram showing the transmission device 80 in a state where the supply transmission mechanism 90 is switched to the low speed state. As shown in this figure, the supply transmission mechanism 90 is switched to a low-speed state by rotating the first transmission gear 92 to the transmission shaft 84 and the second transmission gear 93 to the rotation shaft 82 to rotate the supply transmission mechanism 90. The driving force of the shaft 82 is decelerated by the second transmission gear 93 and the first transmission gear 92 and output to the transmission shaft 84, and the six on / off mechanisms 85 are switched to the on state, so that The driving force is transmitted to the feeding rotary body 52 of the six feeding mechanisms 50.

  Therefore, in the transmission device 80, when the supply speed change mechanism 90 is switched to the low speed state, the drive force input to the input case 81 by the input shaft 81a is changed to the low speed drive force by the supply speed change mechanism 90 and the transmission shaft 84 is changed. The on-off mechanism 85 of the six feeding mechanisms 50 is switched to the ON state, and the feeding rotary body 52 of the feeding mechanism 50 is driven at a low speed, and the on / off mechanism 85 is switched to the ON state. The feeding mechanism 50 is caused to supply seed pod a to the field in the state of spotting.

  When the supply transmission mechanism 90 is switched to a high speed state, the transmission device 80 shifts the driving force input to the input case 81 by the input shaft 81 a to a high speed driving force by the supply transmission mechanism 90 and transmits it to the transmission shaft 84. The on-off mechanism 85 of the six feeding mechanisms 50 is switched to the ON state, and the feeding rotary body 52 of the feeding mechanism 50 is driven at high speed, so that the on / off mechanism 85 is switched to the ON state. The feeding mechanism 50 is caused to supply seed pods to the field in a state where the interval of spotting is small.

  The supply transmission mechanism 90 is one of the six feeding mechanisms 50 with respect to the feeding mechanism 50 located at the extreme end in the direction along the rotation axis P of the feeding rotary body 52 of the six feeding mechanisms 50. It is arranged on the side opposite to the side where the other feeding mechanisms 50 other than the outermost feeding mechanism 50 are located.

  Therefore, when the speed change operation of the supply speed change mechanism 90 is performed, the operation of replacing the first transmission gear 92 and the second transmission gear 93 with the rotary shaft 82 and the transmission shaft 84 with the divided case of the gear case 91 opened is reduced. It can be carried out easily and efficiently from the lateral outer side of the granular material supply device 20.

  As shown in FIG. 8, the feeding rotary body 52 of the feeding mechanism 50 includes a feeding rotary body main body 52 a provided with the four feeding recesses 58 and four capacity adjustment bars respectively engaged with the four feeding recesses 58. And a capacity adjusting body 52b provided with 58a. An operation screw portion provided on the inner peripheral side of the capacity adjustment body 52b is engaged with a feed screw portion 65a provided on the outer peripheral side of the adjustment cylinder shaft 65 that is externally fitted to the rotation support shaft 59 so as to be relatively rotatable. When the adjustment cylinder shaft 65 is rotated, the capacity adjusting body 52b is moved with respect to the feeding rotating body main body 52a by the feeding action of the feed screw portion 65a, and each capacity adjusting bar 58a is moved with respect to the feeding recess 58. The capacity of the feeding recess 58 is changed by sliding and changing the length of insertion of each capacity adjustment bar 58a into the feeding recess 58. The set amount at which the feeding rotary body 52 feeds the seed meal a from the powder tank 24 by a set amount is set by the capacity of the feeding recess 58.

  As shown in FIGS. 5 and 8, the adjustment cylinder shaft 65 of each feeding mechanism 50 is arranged in the vehicle body lateral direction via a carrier mechanism having an adjustment gear 66 provided at the end portion of the adjustment cylinder shaft 65 so as to be integrally rotatable. Is linked to one adjustment operation shaft 67. In other words, when the adjustment operation shaft 67 is rotated by the adjustment handle 68 provided at the end of the adjustment operation shaft 67, the amount of seed a to be fed by the respective feeding recesses 58 of the feeding rotary body 52 in the six feeding mechanisms 50. Changes at once.

  As shown in FIGS. 7 and 8, in the state where the sowing cylinder 56 is attached to the feeding case 51, the right and left lateral wall bodies 56 a of the sowing cylinder 56 become vertical wall bodies, and the sowing cylinder 56 The front wall body 56b and the rear wall body 56c are configured to have a cylindrical structure that forms an inclined wall body in an inclined posture located on the outer side of the seeding tube 56 from the upper end side toward the lower end side.

  Even if the front wall body 56b of the seeding tube 56 falls from the feeding rotary body 52 toward the front of the vehicle body due to the dynamic inertia imparted by the rotation of the feeding rotary body 52, the seed pod a dropped from the feeding rotary body 52 may fall. The seed pod a is dropped without touching the seed pod a due to the inclined posture of the front wall body 56b located on the front side of the vehicle body toward the lower end side.

  The sowing cylinder 56 is detachably attached to the feeding case 51 by connecting protrusions 56 d provided on the left and right sides of the upper end portion of the sowing cylinder 56 and hooks 51 g provided on the left and right sides of the lower end portion of the feeding case 51. When the seeding tube 56 is attached to the feeding case 51 with the front and rear direction reversed, the rear wall body 56c becomes a front wall body positioned on the vehicle body front side toward the lower end side, and drops the seed pod a without touching the seed pod a. .

  As shown in FIG. 3, a rotation detection sensor 100 is provided at the front end of the granular material supply device 20. The rotation detection sensor 100 is supported on the front end side of the input case 81 so that the input case 81 is used as a support member for the rotation detection sensor 100. The rotation detection sensor 100 detects the rotation state of the input shaft 81a of the input case 81, and outputs the detection result to the display device 101 (see FIG. 1) provided in the driving unit 10 of the self-propelled vehicle. Based on the information from the rotation detection sensor 100, the display device 101 starts driving the feeding mechanism 50 in the granular material supply device 20 and stops the feeding mechanism 50 in the granular material supply device 20. Is displayed.

  The rotation detection sensor 100 is provided in the granular material supply device 20 with the input shaft 81a as a member to be detected. Therefore, the granular material supply device 20 is removed from the self-propelled vehicle by switching the connecting mechanism provided between the machine body frame 21 and the link mechanism 4 of the granular material supply device 20 to the disconnected state, and the input shaft. When the input shaft 81a is disconnected from the rotating shaft 12 by the clutch mechanism 102 (see FIGS. 3 and 5) provided between the rotating shaft 12a and the rotating shaft 12, the rotation detection sensor 100 is left attached to the powder supply device 20. This eliminates the need to remove the rotation detection sensor 100. The rotation detection sensor 100 detects the rotation on the upper side in the transmission direction with respect to the small number of clutches that switch the six feeding mechanisms 50 between the driving state and the stopped state, thereby partially feeding out the six feeding mechanisms 50. The detection operation is performed without being affected by the fact that the mechanism 50 is stopped.

Fig.11 (a) is sectional drawing which shows the feeding mechanism 50 provided with another embodiment. As shown in this figure, in the feeding mechanism 50 having another implementation structure, the guide body 53, the cover 55 , the granular material guide 60, and the scraping brush 54 are detachably attached to the feeding case 51 via a support shaft 54d. It is prepared in a supported state.

FIG. 11B is a longitudinal side view showing the feeding mechanism 50 in a state where the guide body 53, the cover 55 , the granular material guide 60, and the scraping brush 54 are removed. As shown in this figure, the guide body 53, the cover 55 , the granular material guide 60, and the scraping brush 54, which are removed from the feeding case 51 by removing the support shaft 54d from the hair planting portion 54c of the scraping brush 54, are fed out. by taking out from the supply case 51 through the maintenance opening 104 provided in the 51, it can open the periphery of the rotating pay-out member 52 and communicates with the receiving portion 57 on the outer peripheral side of the rotating pay-out member 52 and the discharge section 61 discharging The passage 72 is made to appear so that the seed soot a remaining in the powder tank 24 and the receiving portion 57 can be taken out from the discharge passage 72, or the feeding rotary body 52 can be inspected and cleaned from the maintenance opening 104. . The maintenance opening 104 is opened and closed by a detachable lid 103.

[Another embodiment]
(1) As the cushion material 53b, soft rubber or a spring may be employed in addition to the sponge.

(2) The film body 53c is manufactured separately from the cushion material 53b and attached to the cushion material 53b , or a film body 53c that is attached to the cushion material 53b by coating the cushion material 53b. Also good.

(3) The setting recess arrangement angle A in the feeding rotary body 52 may be set to an angle having the same size as the setting guide angle B in the guide body 53. Also in this case, the object of the present invention can be achieved.

(4) In the above-described embodiment, by providing the four feeding recesses 58 in the feeding rotator 52, the upper limit of the set recess arrangement angle A in the feeding rotator 52 is set to an angle smaller than 180 degrees. . In the case where the feeding rotary body 52 is provided with two feeding concave portions 58, the upper limit of the set concave portion arrangement angle A in the feeding rotary body 52 is set to 180 degrees, so that the object of the present invention can be achieved. it can.

(5) seeds a iron coating process is performed, rice seed Scarpa coating process is performed a, and specific gravity than the seeds a iron coated and Scarpa coating process is not performed is large, also a bird It has unique characteristics. Therefore, in the case of the granular material supply apparatus 20 in which the seed meal a that has been subjected to the iron coating process is configured as the seed to be supplied, the point seeding accuracy is better in terms of the supply interval and the grouping of the seeds on the mud surface. It is advantageous to be able to perform seed supply in this state, and it is advantageous that it is not necessary to bury seed pods supplied to the field. However, the seed potato a that has been subjected to the calpa coating treatment or the seed pod a that has not been subjected to the coating treatment may be configured as a supply object.

(1) includes six feeding mechanism 50, other granular material feeder 20 for the seed supply of Article 6, provided with eight feeding mechanism 50, powder or granular material feeding device performs seed supply 8 Article 20 For example, the present invention can also be used for the powder supply device 20 in which the number of strips that can be fed is other than six.

(2) seeds other feed object and the powder or granular material feeding device 20, but the present invention to powder or granular material feeding device 20 in which the various seeds and granular fertilizers or agents other than rice seed and feed objects available it can.

24 tank 50 feeding mechanism 52 feeding rotary body 52s peripheral surface of feeding rotary body 53 guide body 53a base material 53b cushioning material 53c film body 53d guide surface
54 Slide-off brush 61 Discharge part 57 Receiving part 58 Feeding recessed part 90 Supply speed change mechanism A Setting recessed part arrangement angle B Setting guide angle E End of working surface
F Rotating direction of rotating rotating body L1 A straight line passing through the starting end of the guide surface and the rotation axis of the feeding rotating body L2 A straight line passing through the end of the guide surface and the rotating axis of the rotating rotating body P Rotating axis of the feeding rotating body S Beginning

Claims (5)

The granular material is intermittently fed from the tank by a set amount by a feeding mechanism, the granular material fed by the feeding mechanism is supplied to the field by natural fall, and the feeding mechanism has a plurality of feeding recesses around the circumferential surface. It is a powder and particle supply device configured to be provided with a feeding rotating body that is driven and rotated and arranged in a direction,
A guide body positioned along a peripheral surface of the feeding rotary body so as to close and act on the feeding concave section that moves downward from a receiving portion provided so as to receive the granular material above the feeding rotary body. Provided,
The guide body is configured so that the closing action on the feeding recess is released below the feeding rotating body, and the feeding recess discharges the granular material so that the discharging part appears below the feeding rotating body. ,
A guide surface facing the peripheral surface of the feeding rotary body of the guide body is configured to be elastically deformable in a radial direction of the feeding rotary body,
The center of one feeding recess of a pair of adjacent feeding recesses in the plurality of feeding recesses of the feeding rotating body in the feeding rotating body rotation direction and the center of the other feeding recess in the feeding rotating body rotation direction are fed out. The plurality of feeding recesses are arranged so as to be arranged at a set recess array angle in the rotating body rotation direction,
A straight line passing through the starting end of the guide surface of the guide body and the rotation axis of the feeding rotary body, and a straight line passing through the rotation axis of the feeding rotary body intersect at a set guide angle. Set the length of the guide surface in the direction of rotation of the feeding rotor,
Setting the set recess array angle in the feeding rotary body to an angle that is greater than or equal to the set guide angle and less than or equal to 180 degrees in the guide body ;
A scraping brush is provided between the receiving portion and the guide body to act on the feeding recess.
An operation state in which the guide body and the scraping brush are integrated and closed in the feeding recess, and an outer peripheral side of the feeding rotary body so as to form a discharge passage for powder particles on the outer peripheral side of the feeding rotary body The granular material supply apparatus which is supported so that it can switch to the action release state which opened | released .   A base member fixed to the machine body side of the feeding mechanism; a film body that forms the guide surface and is elastically deformable in a radial direction of the feeding rotating body; and the film body so as to receive and support the film body. The granular material supply apparatus according to claim 1, further comprising a cushion material interposed between the base materials and elastically deformable in a radial direction of the feeding rotating body. The granular material supply apparatus according to claim 1 or 2, wherein the guide body and the scraping brush are integrally and detachably supported.   The granular material supply apparatus according to any one of claims 1 to 3, further comprising a supply speed change mechanism that changes a driving speed of the feeding rotary body.   A plurality of the feeding mechanisms are arranged side by side in a direction along the rotation axis of the feeding rotating body, and an output of the supply transmission mechanism is configured to be transmitted to the feeding rotating bodies of the plurality of feeding mechanisms. Of the plurality of feeding mechanisms, the feeding mechanism is the outermost feeding mechanism located at the end in the direction along the rotation axis of the plurality of feeding mechanisms. The granular material supply apparatus of Claim 4 arrange | positioned on the opposite side to the side in which the other delivery mechanism except for is located.

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