JP5792538B2 - Feeding device - Google Patents

Description

  The present invention relates to a technology of a feeding device that feeds granular materials by a predetermined amount.

  Conventionally, various techniques for a feeding device that feeds granular materials by a predetermined amount are known. As such a feeding device, a device that is provided in a seeding device for sowing seeds that are granular materials and that feeds the seeds that are granular materials by a predetermined amount is known (see Patent Document 1).

  Further, in such a feeding device, when the eye plate rotates and the eye plate hole of the eye plate is positioned above the feeding port of the lower member, the eye plate hole of the eye plate and the feeding port of the lower member communicate with each other. In some cases, the granular material accumulated in the eye plate hole of the eye plate is fed out from the feed port of the lower member. In such a feeding device, when the amount of the granular material fed out by this is increased, the rotation speed of the eye plate is increased. Further, when the amount of the granular material fed out by the feeding device is reduced, the rotation speed of the eye plate is decreased.

JP 2001-251909 A

  However, in such a feeding device, when increasing the amount of particulate matter for each feeding unit, if the rotational speed of the eye plate is too fast, the particulate matter will continuously fall from the eye plate hole, and the particulate matter There has been a problem that the granular material that has been fed out becomes shorter than the desired one, and the granular material that has been fed out has a streak shape (the granular material cannot be fed every predetermined amount). Further, in the case of reducing the amount of the granular material for each feeding unit, there is a problem that if the rotational speed of the eye plate is too slow, the interval for feeding the granular material becomes longer than desired.

  The present invention has been made in view of the situation as described above, and provides a feeding device that can more reliably feed a granular material by a predetermined amount even if the amount of the granular material to be fed is increased or decreased. This is the issue.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

In Claim 1, it is a feeding apparatus which delivers a granular material for every predetermined amount , and when the eye plate rotates and the eye plate hole of the eye plate is located above the delivery port of the lower member, the eye of the eye plate The countersunk hole communicates with the feeding opening of the lower member, and the granular material accumulated in the eyelet hole of the lowering dish is dropped from the feeding opening of the lower member . A first eye plate having one through hole, a projecting portion formed to be insertable into the first through hole of the first eye plate, and a second through hole formed to penetrate the projecting portion. The first eye plate is arranged up and down with the protruding portion of the second eye plate being inserted into the first through hole of the first eye plate. The eye plate of the eye plate is configured by a first through hole of the first eye plate and a second through hole of the second eye plate by changing the vertical distance between the first eye plate and the second eye plate The lower plate is provided with a lower member that abuts the upper surface but does not follow the rotation of the lower plate, and the lower member is provided on the lower surface of the lower member. A presser member that urges upward from below is brought into contact, and the presser member is moved up and down by rotating a presser member shaft disposed further below, so that the presser member, the lower member, and the lower plate Are both moved up and down to expand and contract the eyepiece hole in the axial direction, so that the volume of the eyepiece hole can be increased or decreased .

In Claim 2, in the feeding device according to Claim 1, among the plurality of feeding devices constituting the seeding device, the pressing member shafts of adjacent feeding devices are connected to each other and can be operated integrally, The volume of the eyepiece hole can be increased or decreased .

  As effects of the present invention, the following effects can be obtained.

  That is, according to the first aspect of the invention, even if the amount of the granular material fed out by the feeding device is increased or decreased, there is almost no influence on the interval at which the granular material is fed out, and the granular material is more reliably delivered at every predetermined amount. Can be paid out.

According to the second aspect of the present invention, the pressing members of the plurality of feeding devices are simultaneously rotated by rotating the integrally formed pressing member shaft, and the second eye plate and the lower portion of the plurality of feeding devices are rotated simultaneously. Since the operation of moving the member in the vertical direction can be performed at the same time, the operation of increasing or decreasing the volume of the eye plate holes of the plurality of eye plates of the feeding device of the seeding device can be performed simultaneously. This makes it easy to increase or decrease the volume of the hole.

The side view which showed the whole structure of the traveling body with which the flooded direct seeder provided with the feeding apparatus which concerns on embodiment of this invention was mounted | worn. The rear view which showed the flooded direct seeder provided with the feeding apparatus which concerns on embodiment of this invention. Side surface sectional drawing which showed the delivery apparatus which concerns on embodiment of this invention. The exploded view which showed the internal structure of the feeding apparatus which concerns on embodiment of this invention. Side surface sectional drawing which showed the delivery apparatus which concerns on embodiment of this invention. The rear view which showed the flooded direct seeder provided with the feeding apparatus which concerns on embodiment of this invention. Side surface sectional drawing which showed the delivery apparatus which concerns on embodiment of this invention. The plane schematic diagram which showed the internal structure of the feeding apparatus which concerns on embodiment of this invention.

  Next, a feeding device 50 according to an embodiment of the present invention will be described with reference to FIGS.

  The feeding device 50 feeds granular materials at predetermined intervals. In the feeding device 50, there is one that feeds a granular medicine by a predetermined amount. In this way, the feeding device 50 for feeding the granular medicine by a predetermined amount is provided, for example, in the medicine spraying device 16 described later. In addition, the feeding device 50 includes a device that feeds granular seeds every predetermined amount. In this way, the feeding device 50 that feeds the granular seeds for each predetermined amount is provided in the seeding device 40 described later, for example. In the following description, it is assumed that the granular material fed by the feeding device 50 is granular seeds, and the feeding device 50 is provided in the sowing device 40 and feeds the seeds by a predetermined amount.

  The overall configuration of the traveling machine body 1 to which the seeding device 40 (the flooded direct seeder 19) including the feeding device 50 is mounted will be described with reference to FIG. As shown in FIG. 1, the traveling machine body 1 includes a traveling unit 10 and an elevating link mechanism 20, and a flooded direct seeder 19 is attached to the rear part of the traveling machine body 1 via the elevating link mechanism 20. Further, a fertilizer applicator 17 is mounted on the rear part of the traveling unit 10 in the traveling machine body 1, and a medicine spraying device 16 is mounted on the rear part of the flooded direct seeder 19.

  In the traveling unit 10 of the traveling machine body 1, the engine 2 is provided at the front part of the machine body and is covered with the bonnet 4. The transmission case is supported by the front part of the airframe and is arranged below the engine 2.

  The front axle case 5 is supported on the front part of the airframe, and the front wheels 6 are supported on both the left and right sides of the front axle case 5. The rear axle case 7 is supported on the rear part of the fuselage, and the rear wheel 8 is supported on both the left and right sides of the rear axle case 7.

  The power of the engine 2 is transmitted to the left and right front wheels 6 and the left and right rear wheels 8 through the transmission case, respectively, so that the front wheels 6 and the rear wheels 8 are rotationally driven. Thereby, the traveling machine body 1 can travel forward or backward.

  In the traveling unit 10, a driving operation device 11 is provided in the middle part of the aircraft. An annular steering handle 12 for steering operation, various operation pedals 13, a dashboard 14, and the like are disposed at the front portion of the driving operation device 11. A driver's seat 15 is disposed behind the steering handle 12 at the rear of the driving operation device 11.

  On the dashboard 14, in addition to the steering handle 12, various operating tools and display devices are arranged. It is possible to operate the traveling unit 10 and the like by using these operating tools, the steering handle 12, the various operation pedals 13, and the like.

  A lift link mechanism 20 is provided at the rear of the machine body. The elevating link mechanism 20 includes a pair of left and right upper links 21 and 21, a pair of left and right lower links 22 and 22, a rotating arm 25, a hydraulic cylinder 26, and the like.

  The pair of upper links 21 and 21 are provided in parallel to each other with an interval in the left-right direction. One end portions (front end portions) of the upper links 21 and 21 are supported by the rear portion of the machine body so as to be rotatable in the vertical direction with the shaft member 23 as a fulcrum. The other ends (rear ends) of the upper links 21 and 21 are attached to the front end of the flooded direct seeder 19. The pair of lower links 22 and 22 are provided in parallel to each other with an interval in the left-right direction. One end portions (front end portions) of the lower links 22 and 22 are supported by the rear portion of the machine body so as to be rotatable in the vertical direction with the shaft member 24 as a fulcrum. The other ends (rear ends) of the lower links 22 and 22 are attached to the front end of the flooded direct seeder 19.

  The rotary arm 25 is a rod-shaped member, and one end (lower end) thereof is fixed between the lower links 22 and 22. The hydraulic cylinder 26 is an actuator for raising and lowering the flooded direct seeder 19 attached to the rear part of the machine body. One end of the hydraulic cylinder 26 is connected to the other end (upper end) of the rotary arm 25. The other end of the hydraulic cylinder 26 is connected to the airframe. Then, the traveling machine body 1 moves the hydraulic cylinder 26 to expand and contract, thereby rotating the rotary arm 25, the upper links 21 and 21, and the lower links 22 and 22 to raise and lower the flooded direct sowing machine 19. Composed.

  The flooded direct sowing machine 19 directly seeds paddy rice seeds in a paddy field with water, and includes a sowing frame, a float 18 attached to the sowing frame, a marker 27, a sowing apparatus 40, and the like. The float 18 of the flooded direct seeder 19 includes a center float, a side float, and the like, and supports the seeding device 40 so as not to sink in the mud. The marker 27 of the flooded direct sowing machine 19 is supported on the left and right sides of the sowing frame so that it can be rotated up and down, and is used to put a mark on the rice field when seeding the next strip by turning around the headland. is there. A plurality of seeding devices 40 of the flooded direct seeder 19 are arranged side by side in the left-right direction. The seeding device 40 of the flooded direct seeder 19 is for seeding granular seeds. As shown in FIG. 2, the seed hopper 41 in which granular seeds (particulate matter) are accommodated and the seed hopper 41 are accommodated. And a feeding device 50 for feeding out the seed. In the seeding device 40, a feeding device 50 is arranged at the lower end of the seed hopper 41, and a cylindrical body 42 is provided at the lower end of the feeding device 50, and the seeds fed by the feeding device 50 are discharged from the opening at the lower end of the cylindrical body 42. And configured to sow seeds.

  The feeding device 50 of the sowing device 40 is a device that feeds seeds at a predetermined amount so that seeds are spotted, and a plurality (for example, eight) of seeds are arranged side by side in the horizontal direction. As shown in FIG. 3 or FIG. 4, the feeding device 50 of the seeding device 40 includes a case 51, an eye plate driving shaft 52, an annular member 53, an eye plate 60, and a lower member 55.

  The case 51 of the feeding device 50 in the seeding device 40 is mainly composed of an upper case 51a and a lower case 51b, and the upper case 51a and the lower case 51b are arranged vertically so as to be generally cylindrical. In the case 51 of the feeding device 50, the eye plate driving shaft 52, the annular member 53, the eye plate 60, and the lower member 55 are arranged. In addition, the case 51 of the feeding device 50 is arranged such that the eye plate drive shaft 52, the annular member 53, and the eye plate 60 are aligned with each other.

  The eye plate drive shaft 52 of the feeding device 50 in the seeding device 40 is for rotating the eye plate 60, and is arranged in the case 51 so that the shaft center is slightly inclined forward, backward, and downward. A bevel gear is provided on the top of the eyepiece drive shaft 52 of the feeding device 50. Then, the bevel gear is meshed with the bevel gear provided on the rotating shaft 43 inserted into the upper case 51a from the upper side of the upper case 51a. The tray drive shaft 52 is configured to be able to transmit. In this manner, the eye plate drive shaft 52 is configured to rotate in the circumferential direction with respect to the axial direction of the eye plate drive shaft 52 as the rotary shaft 43 rotates. The rotating shaft 43 is horizontally installed so as to be fitted into the upper case 51a of the feeding device 50 of the plurality of seeding devices 40 (see FIG. 2), and a plurality of power from the engine 2 input to the mission case is received. It is comprised so that it may transmit to each of the delivery apparatuses 50 * 50 ... of a stand.

  The annular member 53 of the feeding device 50 in the seeding device 40 is a member formed in a substantially annular shape, and is disposed in the case 51 (upper case 51a). The annular member 53 of the feeding device 50 is configured such that an engagement groove 53a that can be engaged with an engagement protrusion formed in the upper case 51a is formed on the outer peripheral surface thereof. The annular member 53 of the feeding device 50 is fixed to the upper case 51a by engaging the engaging groove 53a with the engaging protrusion of the upper case 51a, and the upper member 51a is fixed in the vertical direction (the axial center of the annular member 53). Direction) and is configured not to rotate in the circumferential direction of the annular member 53.

  The eye plate 60 of the feeding device 50 in the seeding device 40 is a substantially disk-shaped member, and is disposed between the annular member 53 and the lower member 55. The eye plate 60 of the feeding device 50 is disposed below the annular member 53 so that the peripheral edge of the upper surface of the eye plate 60 contacts the lower surface of the annular member 53. The eye plate 60 of the feeding device 50 has a center hole 61 and an eye plate hole 62.

  The center hole 61 of the eye plate 60 in the feeding device 50 is formed in the center portion so as to penetrate from the upper surface to the lower surface, and is configured so that the lower end portion of the eye plate drive shaft 52 can be fitted. When the eye plate 60 of the feeding device 50 is fixed to the eye plate driving shaft 52 by inserting the lower end portion of the eye plate driving shaft 52 into the center hole 61 of the eye plate 60, the eye plate driving shaft 52 rotates. It is configured to rotate integrally with the eye plate drive shaft 52 in the circumferential direction of the eye plate 60.

  The eye plate hole 62 of the eye plate 60 in the feeding device 50 is a portion where the seed is temporarily stored when the seed stored in the seed hopper 41 is fed. The eye plate hole 62 of the eye plate 60 is formed in a midway portion in the radial direction of the eye plate 60 so as to penetrate from the upper surface to the lower surface of the eye plate 60. The eye plate hole 62 of the eye plate 60 is arranged in such a manner that the eye plate 60 is disposed below the annular member 53 so that the axial centers thereof coincide with each other. It is formed so that the countersink hole 62 of the countersink 60 is located on the inner side (axial center side) than the peripheral surface. A plurality of eye plate holes 62 of the eye plate 60 are arranged. In the present embodiment, the four countersunk holes 62, 62,... Are evenly arranged in the circumferential direction around the axis of the countersink 60. It should be noted that the number of the eye plate holes 62 of the eye plate 60 is not limited.

  The lower member 55 of the feeding device 50 in the seeding device 40 is a flat plate-like member formed in a polygonal shape, and is arranged below the eye plate 60 so that the upper surface of the lower member 55 contacts the lower surface of the eye plate 60. Is done. The lower member 55 of the feeding device 50 is disposed in the lower case 51b so as not to rotate following the rotation of the eye plate drive shaft 52 and the eye plate 60.

  The lower member 55 of the feeding device 50 has a feeding port 55a and a central hole 55b. The feeding port 55 a of the lower member 55 in the feeding device 50 is a part where seeds accumulated in the eye plate hole 62 of the eye plate 60 fall from the eye plate hole 62 and are delivered. The feeding port 55a of the lower member 55 is formed such that a front portion of the lower member 55 is cut out in a concave shape from the outer peripheral end of the lower member 55 to a midway portion in the radial direction toward the center. The feeding opening 55a of the lower member 55 has a rotation trajectory of the eye plate hole 62 when the eye plate 60 is rotated in a state where the lower member 55 is disposed below the eye plate 60 so that the respective axes are aligned. It is formed so as to be cut out to the inner side (center side). The central hole 55 b of the lower member 55 of the feeding device 50 is formed in the central portion of the lower member 55 so as to penetrate from the upper surface to the lower surface.

  In the feeding device 50 of the seeding device 40 configured as described above, when the eye plate 60 rotates and the eye plate hole 62 of the eye plate 60 is located rearward, the seeds dropped from the seed hopper 41 are transferred to the eye plate. It is configured to be supplied from an upper opening in the 60 countersink holes 62 and stored in the eyeplate. At this time, the lower opening of the eye plate hole 62 of the eye plate 60 of the feeding device 50 is closed by the lower member 55. Then, when the eye plate 60 further rotates and the eye plate hole 62 of the eye plate 60 is located above the delivery port 55a of the lower member 55 (the eye plate hole 62 is located forward), The eye plate hole 62 of the plate 60 and the feeding port 55a of the lower member 55 communicate with each other, and the seed accumulated in the eye plate hole 62 of the eye plate 60 falls downward and is fed from the feeding port 55a of the lower member 55. Configured to be When the feeding device 50 repeats such an operation, the seeds are fed every predetermined amount and are seeded. In the seeding device 40, the eye plate 60 rotates so that seeds that could not enter the eye plate hole 62 of the eye plate 60 are blocked by a partition member (not shown) provided in the upper case 51 a. Thus, only seeds stored in the eye plate hole 62 of the eye plate 60 are conveyed to the feeding port 55a of the lower member 55.

  Further, the feeding device 50 of the seeding device 40 is configured to be able to increase or decrease the volume of the eye plate hole 62 by expanding and contracting the eye plate hole 62 of the eye plate 60 in the axial direction of the eye plate hole 62 (see FIG. 3 or FIG. 5). With this configuration, the feeding device 50 increases or decreases the volume of the eye plate hole 62 of the eye plate 60 to increase or decrease the amount of seed (granular material) stored in the eye plate hole 62 of the eye plate 60. It is possible to increase or decrease the amount of seed (granular material) for each feeding unit fed by the feeding device 50. With this configuration, the feeding device 50 can increase or decrease the amount of seed (granular material) fed by the feeding device 50 without increasing or decreasing the rotation speed of the eye plate 60. Therefore, in the feeding device 50, even if the amount of the seed (granular material) fed out is increased or decreased, the seed (granular material) is hardly affected, and the seed (granular material) is hardly affected. The seeds (granular material) can be more reliably delivered (spotted) every predetermined amount by suppressing the interval at which the material is delivered from being shorter or longer than desired. In addition, the feeding device 50 is configured such that the rotational speed of the eye plate 60 increases as the rotational speed of the eye plate drive shaft 52 increases in synchronization (proportional) with the traveling speed of the traveling machine body 1. With the above-described configuration, the amount of the seed (granular material) to be fed can be increased or decreased without providing a speed change means for changing the rotational speed of the eyepiece drive shaft 52 in the feeding device 50. it can.

  In the following, more specifically, the feeding device 50 in the seeding device 40 is configured to be able to increase or decrease the volume of the eye plate hole 62 by expanding and contracting the eye plate hole 62 of the eye plate 60 in the axial direction of the eye plate hole 62. Explained. The eye plate 60 of the feeding device 50 in the seeding device 40 includes a first eye plate 70 and a second eye plate 80 as shown in FIG.

  The first eye plate 70 of the feeding device 50 in the seeding device 40 is a substantially disc-shaped member, and the second eye plate is made to coincide with the axis of the first eye plate 70 and the axis of the second eye plate 80. 80 is disposed above. The first eye plate 70 of the feeding device 50 is disposed below the annular member 53 so that the peripheral edge of the upper surface of the first eye plate 70 contacts the lower surface of the annular member 53. The first eye plate 70 of the feeding device 50 includes a convex portion 73, a central hole 71, a groove portion 74, and a first through hole 72.

  The convex portion 73 of the first eye plate 70 in the feeding device 50 is formed so as to protrude upward at the center of the upper surface of the first eye plate 70. The center hole 71 of the first eye plate 70 in the feeding device 50 is formed in the center portion of the first eye plate 70 (the center portion of the convex portion 73) so as to penetrate from the upper surface to the lower surface. The central hole 71 of the first eye plate 70 is configured such that the lower end portion of the eye plate drive shaft 52 can be inserted. The first eye plate 70 is fixed to the eye plate driving shaft 52 by inserting the lower end portion of the eye plate driving shaft 52 into the central hole 71 of the first eye plate 70, and the eye plate driving shaft 52 rotates. The eye plate drive shaft 52 is configured to rotate integrally. That is, the center hole 71 of the first eye plate 70 is configured as the center hole 71 of the eye plate 60. The groove portion 74 of the first eye plate 70 in the feeding device 50 is an annular groove, and is formed at the center of the lower surface of the first eye plate 70 (a position corresponding to the portion where the convex portion 73 is formed on the lower surface). .

  The first through-hole 72 of the first eye plate 70 in the feeding device 50 is arranged in the middle of the first eye plate 70 in the radial direction from the upper surface to the lower surface (in the axial direction of the first eye plate 70). ) It is formed to penetrate. The first through hole 72 of the first eye plate 70 is formed in a quadrangular prism shape. The first through-hole 72 of the first eye plate 70 is an opening above the first through-hole 72 in a state where the first eye plate 70 is disposed below the annular member 53 so that the axial centers thereof coincide with each other. Is formed so as to be located on the inner side (center side) of the inner peripheral surface of the annular member 53. A plurality of first through holes 72 of the first eye plate 70 are arranged. In the present embodiment, the four first through holes 72, 72,... Are evenly arranged in the circumferential direction around the axis of the first eye plate 70.

  The second eye plate 80 of the feeding device 50 in the seeding device 40 is a substantially disk-shaped member, and is made to coincide with the axial center of the annular member 53 and the first eye plate 70. It is arranged below. The second eye plate 80 of the feeding device 50 is disposed above the lower member 55 so that the upper surface of the lower member 55 is in contact with the lower surface of the second eye plate 80. The second eye plate 80 and the lower member 55 of the feeding device 50 are vertically moved in a state where the second eye plate 80 and the lower member 55 are integrated in the case 51 and kept parallel to the first eye plate 70. It is configured to be movable. The second eye plate 80 of the feeding device 50 includes a convex portion 84, a central hole 81, a protruding portion 83, and a second through hole 82.

  The convex portion 84 of the second eye plate 80 in the feeding device 50 is formed so as to protrude upward at the center of the upper surface of the second eye plate 80. The central hole 81 of the second eye plate 80 in the feeding device 50 is formed in the center portion of the second eye plate 80 (the center portion of the convex portion 84) so as to penetrate from the upper surface to the lower surface. The center hole 81 of the second eye plate 80 is configured such that the lower end portion of the eye plate drive shaft 52 can be inserted. The second eye plate 80 is configured to be movable in the vertical direction in a state where the lower end portion of the eye plate driving shaft 52 is fitted in the central hole 81 of the second eye plate 80.

  The protruding portion 83 of the second eye plate 80 in the feeding device 50 protrudes upward (in the axial direction of the second eye plate 80) from the upper surface of the second eye plate 80 in the radially intermediate portion of the second eye plate 80. Formed as follows. The protruding portion 83 of the second eye plate 80 is formed in a square tube shape. The protrusion 83 of the second eye plate 80 has a length in the axial direction (length in the protrusion direction) that is the length in the axial direction in the first through hole 72 of the first eye plate 70 (the length of the first eye plate 70). (Thickness) is almost the same. The protruding portion 83 of the second eye plate 80 has the first penetration of the first eye plate 70 in a state where the second eye plate 80 is disposed below the first eye plate 70 so that the axial centers thereof coincide with each other. It is formed at a position corresponding to the position of the hole 72 (below the first through hole 72 of the first eye plate 70). That is, the protrusion 83 of the second eye plate 80 has an annular opening above the protrusion 83 in a state in which the second eye plate 80 is disposed below the annular member 53 so that the axial centers thereof coincide with each other. It is formed so as to be located on the inner side (axial center side) than the inner peripheral surface of the member 53. The protruding portion 83 of the second eye plate 80 is formed so that it can be inserted into the first through hole 72 of the first eye plate 70 and the first through hole 72 of the first eye plate 70 from below. When the protruding portion 83 of the second eye plate 80 is fitted into the first through hole 72 of the first eye plate 70, the inner surface of the first through hole 72 of the first eye plate 70 and the second eye plate 80. It is formed so as to be in close contact with each other so that seeds do not enter between the outer surfaces of the protrusions 83. A plurality of protrusions 83 of the second eye plate 80 in the feeding device 50 are arranged. In the present embodiment, the four projecting portions 83, 83,. Are evenly arranged in the circumferential direction around the axis of the second eye plate 80.

  The second through hole 82 of the second eye plate 80 in the feeding device 50 is formed so as to penetrate the protruding portion 83 in the axial direction of the second eye plate 80. The second through-hole 82 of the second eye plate 80 extends from the upper surface of the protrusion 83 (the surface in the direction in which the protrusion 83 protrudes) to the back surface of the second eye plate (the direction opposite to the direction in which the protrusion 83 protrudes). It is formed so as to penetrate the back). The second through hole 82 of the second eye plate 80 is formed in a quadrangular prism shape. The second through-hole 82 of the second eye plate 80 is an opening above the second through-hole 82 in a state where the second eye plate 80 is disposed below the annular member 53 so that the axial centers thereof coincide with each other. Is formed so as to be located on the inner side (axial center side) than the inner peripheral surface of the annular member 53. Further, a plurality of second through holes 82 of the second eye plate 80 are arranged in accordance with the position and number of the first through holes 72 of the first eye plate 70. In the present embodiment, the four second through holes 82, 82... Are evenly arranged in the circumferential direction around the axis of the second eye plate 80.

  Each protrusion 83 of the second eye plate 80 in the feeding device 50 is inserted into each first through hole 72 of the first eye plate 70. The second eye plate 80 rotates when the eye plate driving shaft 52 rotates in a state where the protruding portion 83 of the second eye plate 80 is inserted into the through hole of the first eye plate 70. 52 and the first eye plate 70 are configured to rotate together. In addition, the second eye plate 80 is the first eye plate in a state in which the protruding portion 83 of the second eye plate 80 is inserted into the through hole of the first eye plate 70 (at least a part of the protruding portion 83). 70 in the first through-hole 72, while the protrusion 83 of the second eye plate 80 slides (moves) in the vertical direction (the axial direction of the first eye plate 70 and the second eye plate 80), It is configured to be movable.

  The first through hole 72 of the first eye plate 70 and the second through hole 82 of the second eye plate 80 in the feeding device 50 constitute the eye plate hole 62 of the eye plate 60. Specifically, a portion in which the second through hole 82 of the second eye plate 80 in the feeding device 50 and the protrusion 83 of the second eye plate 80 in the first through hole 72 of the first eye plate 70 are not fitted ( And the countersink hole 62 of the countersink 60 is formed by the exposed portion of the first through hole 72.

  Here, the protrusion 83 of the second eye plate 80 is inserted into the through hole of the first eye plate 70 and the upper surface of the second eye plate 80 is in contact with the lower surface of the first eye plate 70 (first In a state where there is no gap between the first eye plate 70 and the second eye plate 80, the protruding portion 83 of the second eye plate 80 is inserted into the entire first through hole 72 of the first eye plate 70, and the first eye The first through-hole 72 of the dish 70 is in a state (not exposed) covered with the protruding portion 83 of the second dish 80 (see FIG. 3). From such a state, the second eye plate 80 is moved downward (on the opposite side to the first eye plate 70) in the direction in which the distance between the first eye plate 70 and the second eye plate 80 is widened. When the projecting portion 83 of 80 is slid, a portion (exposed portion) where the projecting portion 83 of the second eye plate 80 is not inserted into the first through hole 72 of the first eye plate 70 is generated. Come (see FIG. 5).

  That is, when the second eye plate 80 is moved downward (opposite to the first eye plate 70 side), the protruding portion 83 of the second eye plate 80 in the first through hole 72 of the first eye plate 70 is inserted. The volume of the portion that has not been increased (the length in the axial direction of the eye plate hole 62 of the eye plate 60 increases), and the volume of the eye plate hole 62 of the eye plate 60 increases (see FIG. 5). Further, when the second eye plate 80 is moved upward (to the first eye plate 70 side) in the direction in which the distance between the first eye plate 70 and the second eye plate 80 is narrowed, the first penetration of the first eye plate 70 is performed. The volume of the portion of the hole 72 where the protruding portion 83 of the second eye plate 80 is not inserted is reduced (the length in the axial direction of the eye plate hole 62 of the eye plate 60 is shortened). The volume of the eye plate hole 62 decreases (see FIG. 3).

  In this way, the feeding device 50 moves the second eye plate 80 in the vertical direction (with the projections 83 of the second eye plate 80 fitted in the first through holes 72 of the first eye plate 70). The first eye plate 70 and the first eye plate 70 are moved in the axial direction of the first eye plate 70 and the projecting portion 83 of the second eye plate 80 is slid vertically in the first eye plate 70. The volume of the portion of the first through-hole 72 of the 70 where the protruding portion 83 of the second eye plate 80 is not inserted is increased or decreased so that the eye plate hole 62 of the eye plate 60 is connected to the axis of the eye plate hole 62. The volume of the eye plate hole 62 of the eye plate 60 can be increased or decreased by expanding and contracting in the center direction (vertical direction). That is, the feeding device 50 changes the distance between the first eye plate body and the second eye plate body so as to change the first through hole 72 of the first eye plate 70 and the second through hole of the second eye plate 80. The volume of the eye plate hole 62 of the eye plate 60 constituted by 82 is configured to be able to increase or decrease.

  With this configuration, the feeding device 50 increases or decreases the volume of the eye plate hole 62 of the eye plate 60 to increase or decrease the amount of seed (granular material) stored in the eye plate hole 62 of the eye plate 60. It is possible to increase or decrease the amount of seed (granular material) for each feeding unit fed by the feeding device 50. With this configuration, the feeding device 50 can increase or decrease the amount of seed (granular material) fed by the feeding device 50 without increasing or decreasing the rotation speed of the eye plate 60. Accordingly, in the feeding device 50, even if the amount of the seed (granular material) fed out is increased or decreased, the interval for feeding out the seed (granular material) is hardly affected (the interval for feeding the seed (granular material) is desired. The seeds (granular materials) can be fed out in a predetermined amount more reliably.

  Further, the feeding device 50 of the seeding device 40 includes an elastic member 56, a pressing member 57, and a pressing member shaft 58, as shown in FIG. 3 or FIG.

The elastic member 56 of the feeding device 50 in the seeding device 40 is configured by a coiled spring.
The elastic member 56 of the feeding device 50 has its upper end brought into contact with the upper surface of the groove portion 74 of the first eye plate 70, and its lower end fitted into the convex portion 84 of the second eye plate 80 so that the upper surface in the vicinity of the convex portion 84. It arrange | positions between the 1st eye plate 70 and the 2nd eye plate 80 so that it may contact | abut (refer FIG. 3). The elastic member 56 of the feeding device 50 biases the second eye plate 80 and the lower member 55 downward while being arranged in this manner.

  The pressing member 57 of the feeding device 50 in the seeding device 40 is a member that presses the lower member 55 from below and biases the lower member 55 (and the second eye plate 80) upward. The pressing member 57 of the feeding device 50 is configured to be formed in a substantially Y shape in a plan view so that the front end portion 57a is divided into two. The pressing member 57 of the feeding device 50 is disposed below the lower member 55 such that the distal end portion 57a faces forward and the proximal end portion 57b faces rearward. The presser member 57 of the feeding device 50 is disposed so that the distal end portion 57a is positioned behind the feeding port 55a of the lower member 55 so as not to reach the feeding port 55a of the lower member 55. The holding member 57 of the feeding device 50 is configured so that its base end portion 57b is fixedly attached to the pressing member shaft 58 and is rotatable in the vertical direction by rotating the pressing member shaft 58.

  The pressing member shaft 58 of the feeding device 50 in the seeding device 40 rotates the pressing member 57 in the vertical direction by rotating in the circumferential direction with respect to the axial direction of the pressing member shaft 58. When the presser member shaft 58 rotates and the presser member 57 rotates upward, the presser member shaft 58 of the feeding device 50 resists the urging force of the elastic member 56 and moves the lower member 55 and the eye plate 60. The second eye plate 80 is configured to be movable upward. The presser member shaft 58 of the feeding device 50 is horizontally provided at the rear portion of the lower case 51 b so as to be orthogonal to the axial direction of the eyepiece drive shaft 52. The pressing member shaft 58 of the feeding device 50 is disposed so that a part thereof protrudes from the side of the lower case 51b to the outside of the lower case 51b. The pressing member shaft 58 of the feeding device 50 is configured to be rotatable to an arbitrary rotational position by a predetermined actuator or manually, and is configured to be fixed at the rotational position. For example, a motor for rotating the presser member shaft 58 to a predetermined rotation position or fixing it at the rotation position may be provided in a portion protruding from the lower case 51b of the presser member 57. Note that the rotation position of the pressing member shaft 58 may be fixed at an arbitrary rotation position using a fixing pin or a fixing screw.

  In the feeding device 50 configured as described above, the pressing member shaft 58 is rotated to rotate the pressing member 57 upward, and the second eye plate 80 is moved upward to project the protruding portion 83 of the second eye plate 80. Is slid upward in the first eye plate 70. Further, in the feeding device 50, when the presser member shaft 58 is rotated and the presser member 57 is rotated downward, the second eye plate 80 is moved downward by the urging force of the elastic member 56, and the second eye plate 80. The protrusion 83 slides downward in the first eye plate 70 (see FIG. 3 or FIG. 5). In this way, in the feeding device 50, the second plate 80 and the lower member 55 are moved in the vertical direction by the elastic member 56, the holding member 57, and the holding member shaft 58, and the protruding portion 83 of the second plate 80. Is slid vertically in the first eye plate 70. Therefore, according to the feeding device 50, when the volume of the eye plate hole 62 of the eye plate 60 is increased or decreased, the second eye plate 80 and the lower member 55 are moved in the vertical direction (the protruding portion of the second eye plate 80). 83 can be more easily performed.

  In the feeding device 50, the first through hole 72 of the first eye plate 70 is formed in a quadrangular prism shape, the protrusion 83 of the second eye plate 80 is formed in a square tube shape, and the second eye plate 80 has a second shape. The through hole 82 is formed in a square column shape, and the eye plate hole 62 of the eye plate 60 is formed in a square column shape. However, the shape of the eye plate hole 62 of the eye plate 60 is not limited to this. It may be formed in a columnar shape or other prismatic shape.

  Moreover, as shown in FIG. 6, the feeding device 50 of the seeding device 40 connects the pressing member shafts 58 and 58 of the adjacent feeding devices 50 and 50 among the plurality of feeding devices 50 and 50. And may be configured integrally. By configuring in this way, the pressing members 57, 57,... Of the plurality of feeding devices 50, 50,. The second eye plates 80, 80, and the lower members 55, 55, ... of the plurality of feeding devices 50, 50, ... are moved in the vertical direction (the projection of the second eye plates 80, 80, ...). The operation of sliding the parts 83, 83... In the vertical direction) can be performed simultaneously. Therefore, according to the feeding device 50 of the seeding device 40, the operation of increasing or decreasing the volume of the eye plate holes 62, 62... Of the plurality of eye plates 60, 60. ... The operation of increasing / decreasing the volume of the countersunk holes 62.

  Next, the structure which makes it possible to adjust the amount of seeds (granular material) for each feeding unit fed by the feeding device 50 in the seeding device 40 will be described with reference to FIGS. 7 and 8.

  As shown in FIG. 7 or FIG. 8, the feeding device 50 in the seeding device 40 includes adjusting means 64 that can adjust the amount of seed (granular material) for each feeding unit fed by the feeding device 50. The adjusting means 64 of the feeding device 50 includes an adjusting lever 65 and a rotation support shaft 66 and is disposed below the upper side of the eye plate 60. The adjusting lever 65 of the adjusting means 64 has a restricting plate portion 65a at one end and a handle portion 65b at the other end. A midway portion of the adjustment lever 65 is rotatably supported by the rotation support shaft 66. The rotation support shaft 66 is attached in parallel to the eyepiece drive shaft 52 to a convex portion 51c formed to protrude outward from the lower case 51b.

  The regulating plate 65 a of the adjusting lever 65 in the adjusting means 64 is disposed below the eye plate hole 62 of the eye plate 60 and in the feeding port 55 a of the lower member 55. The restricting plate portion 65a of the adjusting lever 65 is formed in a substantially semicircular shape, and has a size capable of completely closing the eye plate hole 62 of the eye plate 60. The handle 65 b of the adjustment lever 65 is disposed outside the case 51. The handle 65b of the adjustment lever 65 can be held at an arbitrary rotational position. When the operator holds the handle 65b of the adjustment lever 65 and rotates the adjustment lever 65, the restriction plate portion 65a of the adjustment lever 65 can be rotated. In this way, the adjustment means 64 rotates the adjustment lever 65 around the rotation support shaft 66 to change the overlapping area between the eye plate hole 62 of the eye plate 60 and the restriction plate portion 65a of the adjustment lever 65. Configured to be possible. In the adjusting means 64, when the adjusting lever 65 is rotated in this way, the larger the overlapping area between the eye plate hole 62 of the eye plate 60 and the regulating plate portion 65a of the adjusting lever 65 is, the larger the eye of the eye plate 60 is. The amount of fall of the seed (granular material) from the dish hole 62 will be reduced, and the amount of fall of the seed (granular material) will be increased as the overlapping area between the eye plate hole 62 of the eye plate 60 and the regulating plate portion 65a becomes smaller. It will be. As described above, the adjusting means 64 is configured to be able to adjust the amount of seed (granular material) for each feeding position fed by the feeding device 50.

  By being configured to include the adjusting means 64 as described above, in the feeding device 50, the amount of seeds (granular material) for each feeding unit fed by the feeding device 50 without increasing or decreasing the rotational speed of the eye plate 60. Can be increased or decreased. Therefore, in the feeding device 50, even if the amount of the seed (granular material) for each feeding unit fed out is increased or decreased, the seed (granular material) is fed almost without any influence on the feeding interval of the seed (granular material). It is possible to more reliably feed seeds (granular materials) by a predetermined amount by suppressing the interval to be taken out from being shorter or longer than desired.

  The plurality of feeding devices 50, 50,..., The adjusting levers 65, 65,... Of the adjusting levers 65, 65,. It is also possible to configure the amount of seeds for each feeding unit fed by the feeding devices 50, 50.

1 traveling machine body 40 flooded direct seeder 41 seed hopper 55 lower member 55a feeding port 60 eye plate 62 eye plate hole

Claims (2)

It is a feeding device that feeds granular materials by a predetermined amount ,
When the eye plate rotates and the eye plate hole of the eye plate is positioned above the feeding port of the lower member, the eye plate hole of the eye plate communicates with the feeding port of the lower member, and the eye of the eye plate The particulate matter accumulated in the countersink is configured to drop from the feeding port of the lower member ,
The said eye plate is formed so that the 1st eye plate which has a 1st through-hole, the protrusion part formed so that insertion is possible in the 1st through-hole of said 1st eye plate, and this protrusion part are penetrated. A second eye plate having a second through hole,
In the state where the protruding part of the second eye plate is fitted and inserted into the first through hole of the first eye plate, both eye plates are arranged up and down,
The said eye plate comprised from the 1st through-hole of the said 1st eye plate, and the 2nd through-hole of the said 2nd eye plate by changing the space | interval of the upper and lower sides of a 1st eye plate and a 2nd eye plate The volume of the eye plate hole can be increased or decreased,
The lower surface of the lower dish is provided with a lower member that contacts the upper surface but does not follow the rotation of the dish,
A pressing member that urges the lower member upward from below is brought into contact with the lower surface of the lower member,
The presser member is moved up and down by rotating a presser member shaft disposed further below, and the presser member, the lower member, and the lower eye plate are moved up and down together,
A feeding device characterized in that the volume of the countersink hole can be increased or decreased by expanding and contracting the countersink hole in the axial direction . The feeding device according to claim 1, wherein among the plurality of feeding devices constituting the seeding device, the pressing member shafts of adjacent feeding devices are connected to each other so as to be integrally operable, and the volume of the eye plate hole is set. A feeding device characterized in that it can be increased or decreased .

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