JP3909360B2 - Powder and particle feeding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a configuration of a feeding device that feeds powders such as fertilizers, seeds, and drugs by a certain amount by rotating a feeding roll.
[0002]
[Prior art]
Conventionally, a fertilizer sowing machine is attached to the rear part of a traveling vehicle such as a tractor, the fertilizer sowing machine is provided with a feeding device at the lower part of a hopper filled with fertilizer and seeds, and the feeding device is adapted to the running of the tractor. A fertilizer seeding machine that releases a certain amount of powders such as fertilizers and seeds by rotating the feeding roll is known. In such a fertilizer seeding machine, the granular material in the hopper enters the feeding recess of the feeding roll from the lower part of the hopper, is conveyed downward along with the rotation of the roll, and is fed out by a certain amount. And as the working time becomes longer, powder adheres to the recesses gradually due to moisture, etc., and also enters the gaps, so the volume in the recesses decreases and the amount of powder particles that can enter the recesses decreases In addition, if powder enters the rotating part, the rotational load increases and may be damaged. Therefore, it is necessary to remove the feeding roll as appropriate to remove the deposits.
[0003]
[Problems to be solved by the invention]
However, in the configuration of the conventional feeding device, when performing maintenance, the hopper and the conduit are removed from the feeding case, and the roll press and the brush are removed from the feeding case and then the feeding roll is pulled out to the side. It took a lot of work to disassemble. In addition, since the feeding case remains in a box shape, it is difficult for the finger to reach the corners in the back, making it difficult to remove the deposits.
[0004]
[Means for Solving the Problems]
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
[0005]
In the feeding device that supports a cylindrical feeding roll (41) in a horizontal direction in the feeding case (40) and conveys a predetermined amount of powder particles downward from an upper hopper, the feeding case (40). the feeding is divided by a plane passing through the rotation axis of the roll (41), rotatably housed 該繰exits the roll (41) to low Rukesu (43) in the outer peripheral portion is coated by a roll casing (43), the roll The case (43) has a substantially cylindrical shape, and left and right side plates (43c, 43c) are provided on both sides thereof, and boss portions (43a, 43a) are provided on both sides of the left and right side plates (43c, 43c). The side plates (43c, 43c) are connected to each other by a connecting plate (43d), and the boss portion (43a, 43a) rotatably supports a feeding shaft (42) for driving the feeding roll (41). The plate (43d) 0), and disposed on the opposite side of the brush (44) disposed so that the tip is in contact with the outer peripheral surface of the feeding roll (41), and between the connecting plate (43d) and the brush (44). The roll case (43) has an opening that opens downward from the upper part, which serves as the outlet of the granular material, and the feed shaft (42), the feed roll (41), and the roll case (43). ) Are integrally assembled into a roll unit (50), and the roll unit (50) is detachable from the feeding case (40) .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the invention will be described.
[0007]
1 is an overall side view of a fertilizer seeding machine, FIG. 2 is a side view of a feeding device, FIG. 3 is a rear sectional view of the feeding device, FIG. 4 is an assembled perspective view, and FIG. 6 is a side view in which the phases of the left and right feeding rolls are shifted by 90 degrees.
[0008]
The whole structure of the fertilizer seeder 1 equipped with the feeding device of the present invention will be described with reference to FIG. In the following description, the direction of the arrow A in FIG. The fertilizer seeding machine 1 has a mounting frame 35 installed horizontally at the front part, which is attached to the rear part of the traveling vehicle such as a tractor, and can be adjusted in position from side to side. A seeding frame 36 is fixed to the rear of the mounting frame 35, a fertilizer feeding device 6 is fixed to the rear of the sowing frame 36, and a seed feeding device 7 is fixed to the rear of the feeding device 6. The hoppers 4 and 5 are detachably provided at the upper portions of the feeding devices 6 and 7, respectively. A guide funnel 8 is disposed at the lower part of the feeding device 6, and a guide pipe 10 is communicated with the lower end of the guide funnel 8. The guide pipe 10 is curved forward and forward in front of the side surface in FIG. 1, and the lower end thereof is positioned on the substantially front side surface side of the rotating shaft of the groove forming disk 19. On the other hand, a guide funnel 9 is disposed at the lower part of the feeding device 7, and a conduit 12 is communicated with the lower end of the guide funnel 9. The lower end of the conduit 12 is inserted into the guide pipe 11. The guide pipe 11 is fixed to the roller frame 17, and the lower end of the guide pipe 11 is inserted between the grooving disks 19 and 19 (hereinafter referred to as the sowing frame 36, the hoppers 4 and 5, the feeding devices 6 and 7, the guide funnel 8). (9) A portion connected and fixed to the rear portion of the tractor, such as the guide pipe 10 and the conduit 12, is collectively referred to as “connecting portion 2”).
[0009]
A support frame 13 is suspended below the front surface of the mounting frame 35, parallel links 15 and 16 are pivotally supported by pivot shafts 31 and 32 at the lower portion of the support frame 13, and the guide is provided at the lower end. A support rod 37 for fixing the lower end of the pipe 10 is fixed. The other ends of the parallel links 15 and 16 extend rearward and are pivotally supported by pivot shafts 33 and 34 at the front portion of the roller frame 17. A support rod 18 is fixed to the front end of the roller frame 17, and a groove forming disk 19 is pivotally supported at the lower end thereof so as to be rotatable in a V shape in plan view. Then, a soil covering disk 21 is attached to the rear part of the groove forming disk 19 at the lower end of the arm 20 projecting obliquely downward from the roller frame 17, and the front end of the roller arm 22 is rotatable in the middle of the front and rear of the roller frame 17. And a pressure-reducing roller 23 is mounted on the rear part of the roller arm 22 (rotating of the parallel links 15 and 16 such as the grooving disk 19, the soil covering disk 21, the pressure-reducing roller 23, and the roller frame 17). The parts following the unevenness of the field are collectively referred to as “grounding part 3”).
[0010]
A biasing arm 14 projects rearward from the rear surface of the mounting frame 35, and a support rod 39 is provided between the biasing arm 14 and the roller frame 17 and externally fitted with compression springs 24 and 38 serving as biasing members. It is disguised. The lower end of the support rod 39 is pivotally supported by the fulcrum shaft 25, and the upper portion is supported by the fulcrum shaft 26 so as to be slidable and rotatable. In this way, the grounding portion 3 is pressed against the field with a substantially constant pressure, and is urged while following the unevenness of the field.
[0011]
In such a configuration, when working, the hopper 4 is filled with powdered fertilizer, the hopper 5 is filled with seeds, the fertilizer seeder 1 is attached to the rear of the tractor, and the tractor is advanced. A V-shaped groove is formed, and the feeding devices 6 and 7 are driven by a driving mechanism (not shown) so that a predetermined distance from the groove formed in the field via the feeding device 6, the guide funnel 8 and the guide pipe 10 from the hopper 4. Fertilizer is dropped at the position. On the other hand, the seed is dropped into the groove from the hopper 5 through the feeding device 7, the guide funnel 9, the conduit 12, and the guide pipe 11, covered with the soil covering disk 21, and pressed by the soil covering roller 23.
[0012]
Next, the configuration of the feeding devices 6 and 7 will be described in detail with reference to FIGS. As shown in FIG. 3, a feeding shaft 42 having a gear 42 a on one side is horizontally mounted on the feeding case 40 of the feeding devices 6 and 7, and feeding rolls 41 and 41 are externally fitted to the feeding shaft 42. Yes. A plurality of feeding recesses 41a are formed at regular intervals on the outer periphery of the feeding rolls 41 and 41, and when the feeding roll 41 is rotated, the recesses 41a face the upper powder storage space. When rotating from the position toward the powder particle discharge space below, the powder particles that have entered and stored between the recesses 41a are conveyed downward and fed out.
[0013]
As shown in FIG. 4, the feeding shaft 42 has a gear 42a fixed to one side or is integrally formed, and the central portion is cut into a flat shape to form an angular shaft portion 42b. The counter-gear side has a slightly narrower diameter. As shown in FIG. 4, the shaft center portion of the feeding roll 41 has a rectangular tube shape that fits into the angular shaft portion 42 b, and rotates together with the feeding roll 41 fitted to the feeding shaft 42. It is supported like this. It should be noted that a hexagonal shaft, a spline, or the like can be used instead of the square shaft / square tube. Further, the left and right feeding rolls 41 are inserted into the feeding shaft 42 with a phase shifted by 90 degrees as shown in FIG. In this way, the phase of the recess 41a shifts from side to side, and the left and right rolls alternately feed out powder particles. The rolls are fed out continuously, and the rotation of the roll is slow and a small amount of powder particles are dispersed. Even when doing so, the granular material is not intermittent. The gear 42a of the feeding roll 41 meshes with a gear 49 disposed on the side, and the gear 49 is fixed on the drive shaft so that power is transmitted from a driving wheel (not shown) to drive the feeding roll 41 to rotate. It is configured.
[0014]
The outer periphery of the feeding roll 41 is covered with a roll case 43. As shown in FIG. 4, the roll case 43 has a substantially cylindrical shape, and has a boss 43a projecting laterally from both sides. The feeding shaft 42 is inserted and fitted, and is rotatably supported by the feeding case 40 so as to be detachable. The roll case 43 includes left and right side plates 43c and 43c, and a connecting plate 43d that connects the side plate 43c and the side plate 43c, and is attached so that the connecting plate 43d is positioned on the side opposite to the brush 44 described later. The structure is such that the lower part serving as the outlet is opened through the conveying surface on the side from the upper part serving as the inlet of the granular material, so that the feeding roll 41 can be attached and detached and the granular material can be transported. A boss 43a protrudes outwardly from the axial center portion of the outer surface of the side plate 43c, and a rotation stop 43b that engages with the feeding case 40 to prevent rotation is provided on a part of the outer periphery of the side plate 43c. Yes. In the present embodiment, the rotation stopper 43b protrudes from the upper side of the roll case 43, but it may protrude from the roll case 40 side. The rotation stopper 43b is disposed at the rear or front portion of the feed connection plate 43d, and the path portion in which the brush 44 is positioned and conveyed is opened. The brush 44 is fixed to the feeding case 40 and disposed so that the tip abuts against the outer peripheral surface of the feeding roll 41. Thus, the granular material in the hopper 4 (or 5) enters the feeding recess 41a of the feeding roll 41 from the open part of the upper part, and the feeding roll 41 is rotated to enter the feeding recess 41a by the brush 44. Excess powder particles that cannot enter are removed, and only the powder particles in the feeding recess 41a are conveyed downward and fed out from the open part below.
[0015]
The roll shaft 50, the roll 41, the roll case 43, and the like are integrally assembled to the roll case 50 so that the roll case 50 can be easily attached to and detached from the roll case 40. Spacers and seals are arranged so that the feeding roll 41, the roll case 43, and the feeding case 40 do not wear each other. That is, as shown in FIG. 4, spacers 46, 46 are arranged on both sides of the feeding rolls 41, 41 and stored in the roll case 43, and then the spacers 46, oil seals 45 are sequentially placed on the feeding shaft 42. The spacer 46, the roll case 43, the spacer 46, the oil seal 45, and the spacer 46 are externally fitted, and a C-shaped retaining member 47 is interposed at the end of the feeding shaft 42 to form the roll unit 50. .
[0016]
Next, the structure of the feeding case 40 for attaching the roll unit 50 will be described with reference to FIG. The feeding case 40 is configured in a box shape with the upper and lower surfaces open, and is divided into two parts on the surface passing through the rotation axis of the feeding shaft 42 at the upper and lower central portions of the feeding case 40, and is constituted by an upper case 40a and a lower case 40b. The upper case 40a and the lower case 40b are locked and fixed by a one-touch locking tool 48 that is appropriately disposed across both sides. However, the split surface is not limited to a horizontal plane, and may be a vertical plane passing through the rotation axis. Further, a boss portion 40c is formed in the split surface portion that supports the roll unit 50, and an edge portion 40d is formed in a portion where the one-touch locking device 48 is disposed. Note that a hopper can be integrally formed on the upper case 40a, or can be separated and attached with a one-touch locking tool or the like.
[0017]
Next, a procedure for removing the feeding roll 41 will be described below. When removing the feeding roll 41, first, the one-touch locking tool 48 is released, and the upper case 40a of the feeding case 40 is removed. Then, since the upper part of the roll unit 50 is opened, the roll unit 50 is pulled out and taken out. When the retaining member 47 fitted to the end of the feeding shaft 42 of the roll unit 50 is removed, and the feeding shaft 42 is pulled out in the direction toward the gear 42a, the spacer 46, the oil seal 45, and the roll case 43 can be disassembled. Furthermore, the feeding roll 41 can be removed from the roll case 43. The feeding shaft 42 is slightly narrower on the opposite side of the gear than the square member, so that it can be easily pulled out from the feeding roll or roll case and can be easily inserted.
[0018]
Since it comprised as mentioned above, the roll unit 50 can be taken out, the granular material collected on the contact part and the bottom plate of the feeding case upper part 40a can be removed, and cleaning etc. can be performed easily. By configuring in this way, as shown in FIG. 6, the feeding roll 41 and the connecting plate 43d of the roll case 43 that are worn by contact with the granular material can be integrally removed. And it can be separated by pulling out the feeding shaft 42, the feeding roll 41 and the roll case 43 can be easily removed and maintenance can be easily performed, and the powder and granular material adhered almost completely in the feeding devices 6 and 7. Can be removed.
[0019]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0020]
In the feeding device that supports a cylindrical feeding roll (41) in a horizontal direction in the feeding case (40) and conveys a predetermined amount of powder particles downward from an upper hopper, the feeding case (40). Is divided by a plane passing through the rotation axis of the feeding roll (41), the feeding roll (41) is rotatably accommodated in the roll case (43), and the outer peripheral portion is covered with the roll case (43). The case (43) has a substantially cylindrical shape, and left and right side plates (43c, 43c) are provided on both sides thereof, and boss portions (43a, 43a) are provided on both sides of the left and right side plates (43c, 43c). The side plates (43c, 43c) are connected by a connecting plate (43d), and the bosses (43a, 43a ) rotatably support a feeding shaft (42) for driving the feeding roll (41). The plate (43d) 40) and disposed on the opposite side of the brush (44) disposed so that the tip abuts on the outer peripheral surface of the feeding roll (41), and between the connecting plate (43d) and the brush (44). The roll case (43) has an opening that opens downward from the upper part, which serves as the outlet of the granular material, and the feed shaft (42), the feed roll (41), and the roll case (43). ) Are integrated into a roll unit (50), and the roll unit (50) can be attached to and detached from the feeding case (40), so that the feeding case can be divided and the feeding roll can be easily removed. It is possible to easily clean a portion where the fertilizer easily adheres, such as a portion where the fertilizer is fed to the feeding roll or a portion around the fed portion in the feeding case.
Further, even when wear occurs on the roll case or the feeding roll, it can be removed integrally, so that the worn member can be easily replaced. That is, the maintenance of the feeding device can be performed efficiently.
[0021]
Further, in a feeding device that supports a cylindrical feeding roll in the feeding case in the horizontal direction and feeds a predetermined amount of powder particles downward from the upper hopper, the feeding roll is freely rotatable in the roll case. The roll case can be attached to and detached from the feeding case and an opening is provided on the outer peripheral surface of the roll case from the granular material inlet to the outlet. Can be removed integrally, and the worn member can be easily replaced. In other words, the maintenance of the feeding device and the feeding roll can be performed efficiently.
[Brief description of the drawings]
FIG. 1 is an overall side view of a fertilizer seeding machine.
FIG. 2 is a side view of the feeding device.
FIG. 3 is a rear sectional view of the feeding device.
FIG. 4 is an assembled perspective view.
FIG. 5 is a side view showing a feeding roll that feeds powder particles.
FIG. 6 is a side view in which the phases of the left and right feeding rolls are shifted by 90 degrees.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fertilizer seeding machine 6.7 Feeding device 40 Feeding case 41 Feeding roll 41a Feeding recessed part 42 Feeding shaft 43 Roll case 43a Rotation stop 49 Gear

Claims (1)

In the feeding device that supports a cylindrical feeding roll (41) in a horizontal direction in the feeding case (40) and conveys a predetermined amount of powder particles downward from an upper hopper, the feeding case (40). Is divided by a plane passing through the rotation axis of the feeding roll (41), the feeding roll (41) is rotatably accommodated in the roll case (43), and the outer peripheral portion is covered with the roll case (43). The case (43) has a substantially cylindrical shape, and left and right side plates (43c, 43c) are provided on both sides thereof, and boss portions (43a, 43a) are provided on both sides of the left and right side plates (43c, 43c). The side plates (43c, 43c) are connected to each other by a connecting plate (43d), and the boss portion (43a, 43a) rotatably supports a feeding shaft (42) for driving the feeding roll (41). The plate (43d) 0), and disposed on the opposite side of the brush (44) disposed so that the tip is in contact with the outer peripheral surface of the feeding roll (41), and between the connecting plate (43d) and the brush (44). The roll case (43) has an opening that opens downward from the upper part, which serves as the outlet of the granular material, and the feed shaft (42), the feed roll (41), and the roll case (43). ) Are integrally assembled into a roll unit (50), and the roll unit (50) can be attached to and detached from the feeding case (40) .

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