JP2003219718A - Granule delivery apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that it has been a remarkably time-consuming job to disassemble a conventional delivery apparatus, as in carrying out a maintenance of the conventional one, it is so constituted to dismount a hopper and a pipe from a delivery case, dismount a roll press, a brush and the like from the delivery case and finally pull out the delivery roll aside, and it has been difficult to remove adhered materials because the delivery case has a boxy shape and it is difficult for fingers to reach ends of corners. <P>SOLUTION: The granule delivery apparatus 7 has a cylindrical delivery roll 41 horizontally supported in the delivery case 40 and delivers a predetermined amount of granules downward from an upper hopper 5. The delivery case 40 is divided into two upper and lower parts at a face passing the axis of rotation of the delivery roll 41. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a feeding device that feeds powdered or granular material such as fertilizer, seeds or chemicals by a fixed amount by rotating a feeding roll.

[0002]

2. Description of the Related Art Conventionally, a fertilizer applicator is attached to a rear portion of a traveling vehicle such as a tractor, and the fertilizer applicator is provided with a feeding device at a lower portion of a hopper for filling fertilizer and seeds, and the feeding device is operated by a tractor. A fertilizing and seeding machine is known in which a feeding roll of a feeding device is rotated in accordance with the above conditions to discharge a fixed amount of powdered or granular material such as fertilizer or seeds. In such a fertilizer-seeding machine, the powdery particles in the hopper enter the feeding concave portion of the feeding roll from the lower portion of the hopper, are conveyed downward as the roll rotates, and are fed by a fixed amount. When the working time becomes longer, powder gradually adheres to the recess due to moisture etc., and also enters the gap, so the volume inside the recess decreases and the amount of powder particles that can enter the recess decreases. If powder gets into the rotating part, the rotating load will increase and it may be damaged. Therefore, it is necessary to appropriately remove the feeding roll to remove the deposit.

[0003]

However, in the structure of the conventional feeding device, when performing maintenance, the hopper and the conduit are removed from the feeding case, and the roll retainer, the brush and the like are removed from the feeding case, and then the feeding roll is removed. Since it was designed to be pulled out to the side, it took a lot of time to disassemble it. Further, since the feeding case is still in the shape of a box, it is difficult for the fingers to reach the inner corners and it is difficult to remove the adhering matter.

[0004]

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

That is, according to the first aspect of the present invention, in the feeding device, the cylindrical feeding roll is horizontally supported in the feeding case, and a predetermined amount of powder or granular material is fed downward from the upper hopper to feed the powder. The feeding case is divided into upper and lower parts along a plane passing through the rotation axis of the feeding roll.

That is, according to a second aspect of the present invention, in the feeding device, the cylindrical feeding roll is horizontally supported in the feeding case, and a predetermined amount of the granular material is fed downward from the upper hopper and fed out. The feeding roll is rotatably housed in the roll case so that it can be integrally attached to and detached from the feeding case, and an opening is provided on the outer peripheral surface of the roll case from the powder granule inlet to the powder outlet.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described. 1 is an overall side view of a fertilizer sowing machine, FIG. 2 is a side view of a feeding device, FIG. 3 is a rear cross-sectional view of the feeding device, FIG. 4 is an assembled perspective view, and FIG. 5 shows a feeding roll for feeding powder particles. FIG. 6 is a side view in which the phases of the left and right feeding rolls are shifted by 90 degrees.

The overall construction of a fertilizer-seeding machine 1 equipped with the feeding device of the present invention will be described with reference to FIG. In the following description, the direction of arrow A in FIG. 1, which is the traveling direction, is the front.
The fertilizing and seeding machine 1 has a mounting frame 35 provided laterally on the front part, which is mounted on the rear part of a traveling vehicle such as a tractor, and is positionally adjustable to the left and right. 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 seeding frame 36, and a seed feeding device 7 is fixed to the rear of the feeding device 6. Hoppers 4 and 5 are detachably provided on the upper portions of the feeding devices 6 and 7. A guide funnel 8 is disposed below the feeding device 6, and a guide pipe 10 communicates with the lower end of the guide funnel 8. The guide pipe 10 is curved toward the front side and front side of FIG.
The lower end thereof is located substantially on the front side surface side of the rotary shaft of the grooved disk 19. On the other hand, a guide funnel 9 is disposed below the feeding device 7, and a conduit 12 is connected to the lower end of the guide funnel 9. The lower end of the conduit 12 is a guide pipe 11
Has been inserted into. 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, the seeding frame 36, the hoppers 4,5, the feeding device 6 and 7, the guide funnel 8). -The parts to be connected and fixed to the rear part of the tractor such as 9, the guide pipe 10 and the conduit 12 are collectively referred to as "connecting part 2").

A supporting frame 13 is vertically provided below the front surface of the mounting frame 35, and parallel links 15 and 16 are rotatably supported by lower parts of the supporting frame 13 by pivot shafts 31 and 32, respectively. A support rod 37 for fixing the lower end of the guide pipe 10 is fixed to. The other ends of the parallel links 15 and 16 extend rearward and are rotatably supported on the front portion of the roller frame 17 by pivot shafts 33 and 34. A supporting rod 18 is fixedly provided on the front end of the roller frame 17, and a grooving disk 19 is plan-viewed on the lower end.
It is rotatably supported in a V shape. Then, at the lower end of the arm 20 projecting obliquely downward from the roller frame 17, a soil cover disk 21 is attached to the rear part of the groove groove disk 19,
Further, the front end of the roller arm 22 is rotatably supported at a middle portion of the front and rear of the roller frame 17 so as to protrude rearward and downward,
A compression roller 23 is attached to the rear portion of the roller arm 22 (a parallel link 15, such as a groove groove disk 19, a soil cover disk 21, a compression roller 23, a roller frame 17 and the like).
The portion that follows the unevenness of the field by the rotation of 16 is collectively referred to as "grounding portion 3").

A biasing arm 14 is provided so as to project rearward from the rear surface of the mounting frame 35, and a compression spring 24.3 serving as a biasing member is provided between the biasing arm 14 and the roller frame 17.
A support rod 39 on which 8 is fitted is interposed. A lower end of the support rod 39 is pivotally supported by a fulcrum shaft 25, and an upper portion thereof is slidably and rotatably supported by a fulcrum shaft 26. In this way, the ground contact portion 3 is pressed against the field with a substantially constant pressure, and is biased while following the unevenness of the field.

In such a construction, when the hopper 4 is filled with the granular fertilizer and the hopper 5 is filled with the seeds at the time of working, and the fertilizer sowing machine 1 is attached to the rear part of the tractor and the tractor is moved forward, the field-grooving disc 19 is used. A groove having a V-shaped cross section is formed in the groove, and the feeding devices 6 and 7 are driven by a driving mechanism (not shown), and the groove is formed in the field through the feeding device 6, the guide funnel 8 and the guide pipe 10 from the hopper 4. Fertilizer is dropped at a distance. On the other hand, from the hopper 5, the feeding device 7, the guide funnel 9, the conduit 12, the guide pipe 1
After 1 the seeds are dropped into the groove, covered with the soil cover disk 21 and suppressed by the soil cover roller 23.

Next, the structure of the feeding devices 6 and 7 is shown in FIG.
It will be described in detail with reference to FIG. As shown in FIG. 3, the feeding case 40 of the feeding device 6, 7 has a feeding shaft 42 having a gear 42a on one side, and the feeding rolls 41, 41 are externally fitted to the feeding shaft 42. There is. Feeding roll 4
A plurality of feeding recesses 41a are formed at regular intervals on the outer peripheral portion of the parts 1 and 41, and when the feeding roll 41 is rotated, the recesses 41a are located from the position facing the upper granular material storage space. It is configured such that, when the powder or granular material is rotated toward the lower powder or granular material discharge space, the powder or granular material that has entered between the recesses 41a and is stored is conveyed downward and fed out.

As shown in FIG. 4, the payout shaft 42 has a gear 42a fixed to one side or integrally formed, and a central portion is ground flat to form an angular shaft portion 42b. Part 42
The opposite gear side from b is formed to have a slightly smaller diameter. And
As shown in FIG. 4, the axial center portion of the feeding roll 41 is in the shape of a rectangular tube that fits into the angular shaft portion 42b.
The feeding roll 41 is fitted to the shaft 2 and is pivotally supported so as to rotate together. It is also possible to use a hexagonal shaft, a spline, or the like instead of the square shaft / square cylinder. Further, the left and right feeding rolls 41 are fitted in the feeding shaft 42 with their phases shifted by 90 degrees as shown in FIG. In this way, the phase of the recess 41a shifts to the left and right, the left and right rolls alternately feed out the granular material, and the continuous feeding is performed, and the rotation of the roll is slow and a small amount of the granular material is sprinkled. When doing so, the powder and granules do not become intermittent. The gear 42a of the feeding roll 41 meshes with a gear 49 arranged on a side portion, and the gear 49 is fixedly mounted on a drive shaft and transmits power from a drive wheel (not shown) to rotationally drive the feeding roll 41. Is configured.

The feeding roll 41 has its outer peripheral portion covered with a roll case 43, and as shown in FIG.
The roll case 43 has a substantially cylindrical shape, and boss portions 43a are provided on both sides of the roll case 43 so as to project therefrom, and the payout shaft 42 is inserted therein. The roll case 43 is rotatably supported by the payout case 40 and is removable. The roll case 43 includes left and right side plates 43c and 43c and a connecting plate 43d that connects the side plates 43c and 43c, and the connecting plate 43d is attached so as to be located on the opposite side to the brush 44 described later. The structure is such that the lower side, which is the outlet, is opened through the side-side conveying surface, which is the upper side, which is the inlet of the granular material, so that the delivery roll 41 can be attached / detached and the granular material can be conveyed. A boss portion 43a is provided on the outer surface of the side plate 43c so as to project outward, and a rotation stopper 4 which engages with the feeding case 40 on a part of the outer periphery of the side plate 43c to prevent rotation.
3b is projected. In this embodiment, the rotation stopper 43b is provided on the upper side of the roll case 43, but may be provided on the roll case 40 side. The rotation stopper 43b is arranged at the rear portion or the front portion of the feeding connecting plate 43d, and the path portion in which the brush 44 is positioned and conveyed in the vertical direction is opened. The brush 44 is fixed to the feeding case 40 so that the tip of the brush 44 contacts the outer peripheral surface of the feeding roll 41. Thus, the powder or granular material in the hopper 4 (or 5) enters the feeding recess 41a of the feeding roll 41 from the open portion of the upper part, and the feeding roll 41
When the brush is rotated,
Excessive powder or granules that cannot enter into a are removed, and only the powder or granules in the feeding recess 41a are conveyed downward and fed out from the open portion below.

Then, the feeding shaft 42, the feeding roll 41, the roll case 43 and the like are integrally assembled to form a roll unit 50 so that they can be easily attached and detached integrally with the feeding case 40. The feeding roll 41, the roll case 43, and the feeding case 40.
Spacers and seals are placed so that they do not wear against each other. That is, as shown in FIG.
Place the spacers 46 on both sides of the roll case 4
After being housed in 3, the spacer 46, the oil seal 45, the spacer 46, the roll case 43, the spacer 46, the oil seal 45, and the spacer 46 are fitted onto the feeding shaft 42 in order, and the feeding shaft 42 of the feeding shaft 42. A C-shaped retaining member 47 is interposed at the end portion to form a roll unit 50.

Next, the structure of the feeding case 40 for mounting the roll unit 50 will be described with reference to FIG. The feeding case 40 is formed in a box shape with its upper and lower surfaces open, and is divided into two parts by a plane passing through the rotation axis of the feeding shaft 42 at the upper and lower central portions of the feeding case 40 to be divided into two.
a and a lower case 40b, and the upper case 40a
The lower case 40b is locked and fixed by a one-touch locking tool 48 which is appropriately arranged across both sides. However, the split surface is not limited to the horizontal plane, and may be a vertical plane passing through the rotation axis. In addition, a boss portion 40c is formed on a split surface portion that supports the roll unit 50, and an edge portion 40d is formed on a portion where the one-touch locking member 48 is arranged. Note that the hopper may be integrally formed on the upper case 40a, or may be separated and detachable with a one-touch locking device or the like.

Next, the procedure for removing the feeding roll 41 will be described below. When removing the feeding roll 41,
First, the one-touch locking device 48 is released and the upper case 40a of the feeding case 40 is removed. Then roll unit 5
Since the upper part of 0 is open, the roll unit 50 is pulled out upward and taken out. Then, 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 gear 42a side direction and pulled out, whereby the spacer 46, the oil seal 45, and the roll case 4 are drawn.
3 can be disassembled into a roll case 4
It can be removed from 3. Since the feeding shaft 42 is slightly thinner on the gear opposite side than the square member, it is easier to pull out from the feeding roll or the roll case.
It is also easy to insert when inserting.

With the above-mentioned structure, the roll unit 50 is taken out, and the contact portion and the upper portion 40a of the feeding case 40a are taken out.
The powder and granules accumulated on the bottom plate of can be removed and cleaned easily. With such a configuration, as shown in FIG. 6, the feeding roll 41 that is worn by the contact of the powder and granules.
The connecting plate 43d of the roll case 43 can be integrally removed. The feeding shaft 42 can be disassembled by pulling it out, and the feeding roll 41 and the roll case 4 can be separated.
3 can be easily removed for easy maintenance, and the powder particles adhering to the feeding devices 6 and 7 can be almost completely removed.

[0019]

Since the present invention is constructed as described above,
The following effects are achieved.

That is, as described in claim 1, in a feeding device which horizontally supports a cylindrical feeding roll in a feeding case and conveys a predetermined amount of powder or granular material downward from an upper hopper to feed it. Since the feeding case is divided by the plane that passes through the rotation axis of the feeding roll, the feeding case can be divided and the feeding roll can be easily removed. In the feeding case, fertilizer is fed to the feeding roll or fed. It becomes easy to clean the area around the area where fertilizer is likely to adhere. Further, even when the roll case or the delivery roll or the like is worn, it can be integrally removed, so that the worn member can be easily replaced. That is, maintenance of the feeding device can be efficiently performed.

That is, according to a second aspect of the present invention, in the feeding device, in which a cylindrical feeding roll is horizontally supported in the feeding case and a predetermined amount of powder or granular material is conveyed downward from the upper hopper and fed out, The feeding roll is rotatably housed in a roll case so as to be integrally attachable to and detachable from the feeding case, and an opening portion is provided on the outer peripheral surface of the roll case from the powder particle inlet to the outlet. Even when the pay-out roll or the like is worn, it can be integrally removed, and the worn member can be easily replaced. That is, maintenance of the feeding device and the feeding roll can be efficiently performed.

[Brief description of drawings]

FIG. 1 is an overall side view of a fertilizer sowing machine.

FIG. 2 is a side view of the feeding device.

FIG. 3 is a rear cross-sectional view of the feeding device.

FIG. 4 is an assembled perspective view.

FIG. 5 is a side view showing a pay-out roll for paying out a granular material.

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]

1 Fertilizer sowing machine 6.7 Feeding device 40 feeding case 41 Feeding roll 41a Feeding recess 42 Feeding shaft 43 roll case 43a rotation stop 49 gears

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2B052 BC05 BC08 BC14 EB08                 2B054 AA08 BA01 BB01 CA04 DD07                 2B121 CB09 CB20 CB24 CB32 CB46                       EA25 FA20

Claims (2)

[Claims] 1. A feeding device which horizontally supports a cylindrical feeding roll in a feeding casing and conveys a predetermined amount of powder or granular material downward from an upper hopper to feed the powder or granular material to the feeding casing. A powder / granule feeding device characterized in that it is divided along a plane that passes through a rotation axis. 2. A feeding device for horizontally supporting a cylindrical feeding roll in the feeding case and feeding a predetermined amount of powder or granular material downward from an upper hopper to feed the powder or granular material in the roll case. A powdery or granular material feeding device characterized in that the powdery or granular material is rotatably housed in the roll housing so as to be integrally attachable to and detachable from the powder feeding case, and an opening portion is provided on an outer peripheral surface of the roll case from an inlet to an outlet of the powder and granular material.