JPH0340087Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fertilizing seeding machine configured to simultaneously supply a fixed amount of seeds and fertilizer.

[Conventional technology]

As a conventional fertilizer seeding machine, for example,
As described in Japanese Patent No. 103817, it is common to feed seeds and fertilizer quantitatively from a hopper by rotating a feed roll.

This has a structure in which a room is provided in the hopper to separately store fertilizer and seeds, and a fixed amount of fertilizer and seeds are simultaneously cut out by a feed roll rotatably attached to the bottom of the hopper.

[Problem that the invention attempts to solve]

The feed roll for cutting out fertilizer and seeds is supported by its shaft being rotatably attached to a frame below the hopper. In addition, in order to set the amount of cutout, the feed roll must be placed so as to protrude left and right from the casing of the hopper. This is because in order to vary the capacity of the recesses provided on the circumferential surface of the feed roll and filled with fertilizer and seeds, it is necessary to provide a ring for flow rate adjustment so as to be movable in the axial direction of the feed roll.

In this way, a part of the feed roll protrudes from the casing of the hopper and cannot be housed entirely within the casing, so a casing is formed to surround the circumference of the feed roll and is sealed to prevent fertilizer and seeds from leaking out. are doing.

However, in order to ensure that the rotation of the feed roll is not hindered, a gap must be provided between the seal portion of the casing and the circumferential surface of the feed roll. Therefore, there is a limit to the sealing between the casing and the feed roll, and it is necessary to take measures such as attaching a sealing member to the outside of the casing.

However, even if a sealing member is prepared, it is structurally impossible to arrange the sealing member in close contact with the circumferential surface of the delivery roll because it would impede smooth rotation of the delivery roll. Therefore, a sufficient seal cannot be achieved, and fertilizer and seeds leak to the outside, making it impossible to obtain a quantitative initial discharge. In addition, hard seeds, etc. often get caught in the casing and the circumferential surface of the feed roll, and in this case, it affects the rotation of the feed roll and at the same time causes wear on the circumferential surface of the feed roll, causing the amount to exceed the set amount. It supplies too many seeds and fertilizers.

In this way, in a structure in which the circumferential surface of the feed roll is sealed only with the hopper casing or with a sealing member, leakage impairs the reliability of the constant supply of fertilizer and seeds, and also prevents smooth rotation of the feed roll. There was a problem.

Therefore, the present invention provides a sealing ring inside the casing, and even if fertilizer and seeds leak from this ring, they are returned to the discharge port side at the lower end of the hopper, thereby making it possible to reliably supply a fixed amount.
The purpose is to maintain rapid rotation of the feed roll.

[Means for solving problems]

In order to achieve the above object, the present invention provides a hopper for a fertilizing and seeding machine in which fertilizer and seeds are cut out in fixed quantities to a lower shutter by a rotatable feeding roll inserted through the lower part of the hopper main body.
An inner ring surrounding the peripheral surface of both ends of the feed roll and an outer ring on the outside spaced apart from the inner ring are attached to the hopper body, and the inner ring, the outer ring, and the hopper body A cavity is provided around the entire circumference of the outer peripheral surface of the feed roll, a notch is provided on the inner periphery of the lower part of the inner ring to create a space between the inner ring and the outer circumferential surface of the lower portion of the feed roll; The hopper body is characterized in that a slit is provided in the hopper main body along the outer peripheral surface of the lower end of the feed roll to communicate the cavity with the shooter.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

FIG. 1 is a perspective view of a hopper of a fertilizing and seeding machine according to the present invention, FIG. 2 is a plan view thereof, and FIGS. 3 and 4 are sectional views taken along the - line and - line arrows in FIG. 2.

The hopper main body 1 has a storage container 2 divided into a seed storage section 3 and a fertilizer storage section 4 detachably connected to its upper part, and a lower end that communicates with these seed storage section 3 and fertilizer storage section 4 independently. A seed shooter 5 and a fertilizer shooter 6 are provided. At the lower part of the hopper main body 1, a feed roll 7 for cutting out seeds and fertilizers in fixed quantities into the seed shooter 5 and the fertilizer shooter 6 is rotatably arranged by a rotating shaft 7a. This rotating shaft 7a is rotated in the direction of the arrow in FIG. 1 by interlocking the fertilizing and seeding machine with wheels of a tractor or tiller, etc., which are connected via a coupler 1a by a means such as a chain. Further, the feed roll 7 has a plurality of grooves 8 and 9 on its circumferential surface to be filled with fertilizer and seeds from the storage container 2, and can cut out a fixed amount of fertilizer and seeds corresponding to the capacity of the grooves 8 and 9. It is possible. Note that 10 is a shutter for opening and closing the flow path for fertilizer and seeds from the storage container 2.

In FIG. 4, a partition wall 11 that divides the lower end of the hopper main body 1 into a fertilizer side flow path F-1 and a seed side flow path F-2 is formed so as to surround the circumferential surface of the feed roll 7. In addition, internal rings 1 for sealing are provided at both ends of the fertilizer side flow path F-1 and the seed side flow path F-2.
2 and an outer ring 13 are arranged, respectively.
These inner and outer rings 12, 13 are symmetrical as shown, and FIG. 5 shows a perspective view of the inner ring 12 for the seed side.

The inner ring 12 is made of a metal piece, and as shown in the figure, has a substantially arcuate shape, and has a flange 12a formed on the whole, and a stepped portion 14 that bulges outward from the flange 12a. Also, this step 1
The inner diameter of 4 is approximately equal to the outer diameter of the feed roll 7,
Moreover, a notch 15 is formed on the inner periphery of one end so as to create a gap with the circumferential surface of the feed roll 7.

FIG. 6 is a front view of the feed roll 7 viewed in the axial direction when the inner ring 12 is fixed to the hopper body 1, and FIG. 7 is a perspective view of the inner ring 12 together with the outer ring 13. In both figures, a well-arc shaped pedestal 16 is provided protruding from the side surface of the hopper main body 1, and the part where the stepped part 14 of the inner ring 12 is located is a cut-off part 17 by cutting out the flesh on the inner circumferential side, and the inner ring 12 notches 1
No pedestal 16 is provided at a position corresponding to 5, and the same surface as the side surface of the hopper body 1 is provided. In addition, an internal ring 12 is provided in the part where this pedestal 16 is not provided.
A slit 18 having substantially the same angle as the notch 15 is formed. Note that FIGS. 8a and 8b are enlarged cross-sectional views taken along the - line and - line arrow in FIG. 7.

The outer ring 13 is attached to the base 1 as shown in FIG.
The pedestal 16 has a shape that covers the whole of the hopper body 1, and by utilizing the shape protruding from the side surface of the hopper body 1, a well-arc-shaped cavity 19 is formed around the feed roll 7 between it and the inner ring 12. There is. Note that the outer ring 13 is fixed in a covered state to a bearing frame 1b that is connected to the side of the hopper main body 1 and supports the rotating shaft 7a.

Here, the area where the internal ring 12 faces the circumferential surface of the feed roll 7 is located in the flow path when seeds and fertilizer flow down from the storage container 2 to the seed shooter 5 and the fertilizer shooter 6, respectively. do. Therefore, the peripheral surface of the feed roll 7 is doubly sealed by the inner ring 12 and the outer ring 13.

The structures of the inner ring 12 and outer ring 13 described above are exactly the same on the fertilizer side.

In the above configuration, seeds and fertilizers are supplied to the grooves 8 and 9 of the feed roll 7 independently from the storage sections 3 and 4, and can be fertilized and sown in fixed quantities from the seed shooter 5 and the fertilizer shooter 6.

Here, when fertilizer and seeds are cut out by the rotation of the feed roll 7, a case will be considered in which the fertilizer and seeds leak laterally from the inner ring 12 and the circumferential surface of the feed roll 7. Note that this leakage of seeds and fertilizer occurs when the gap between the inner ring 12 and the circumferential surface of the feed roll 7 is improperly set, or when the grooves 8 and 9 are arranged so as to cross the inner ring 12 laterally. It happens when you get tired.

Fertilizer or seeds leaking from the inner ring 12 are prevented from leaking to the outside because the outer ring 13 is arranged to surround the entire circumference of the feed roll 7 and the amount of leakage does not become excessive. completely prevented. The leaked fertilizer and seeds come to stay in the cavity 19 between the inner ring 12 and the outer ring 13, but as the feed roll 7 rotates, they are forced toward the lower end of the hopper body 1. be made to flow. Hoppa body 1
The fertilizer and seeds that have flowed down to the lower end are returned to the fertilizer flow path F-1 and the seed flow path F-2 through the notches 15 and slits 18 of the inner ring 12, respectively, as shown by the arrows in FIG. do.

That is, as shown in FIG. 4, there is a gap between the inner ring 12 and the circumferential surface of the feed roll 7 due to the notch 15, so leaked fertilizer and seeds are collected from the notch 15. Ru. Further, leakage from the slit 18 provided in the hopper main body 1 can be similarly supplied to the seed shutter 5 and fertilizer shutter 6 side.

In this way, even if fertilizer and seeds leak out of the inner ring 12, the notches 15 and slits 18
It is possible to collect fertilizer and seeds from the soil into the regular flow path, and constantly cut out and supply a fixed amount of fertilizer and seeds. Also, internal ring 1
Even if fertilizer or seeds become clogged between the outer ring 13 and the inner ring 12 and the outer ring 13, they will be forcibly fluidized by the rotation of the feed roll 7. Smooth rotation of the feed roll 7 can be obtained without any jamming between the roll and the surface.

[Effect of idea]

As explained above, in the hopper of the fertilizing and seeding machine of the present invention, the peripheral surface of the feed roll is double sealed by the inner ring and the outer ring,
Moreover, the fertilizer and seeds leaking from the inner ring are fluidized by the rotation of the feed roll and can be collected in the flow path toward the shooter. Therefore, it is possible to always supply a constant amount of fertilizer and seeds, even under fertilization and sowing conditions where the ratio of fertilizer application and seeding amount is set strictly, such as when using highly effective chemical fertilizers. Can respond well. In addition, the fertilizer or seeds leaking from the inner ring are fluidized by the rotation of the feed roll and are quickly discharged from the slit at the lower end and the notched portion of the inner ring. Therefore, these fertilizers and seeds are not caught between the delivery roll and the outer ring, allowing the delivery roll to operate smoothly.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a hopper of a fertilizing and seeding machine according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a sectional view taken along the - line arrow in Fig. 2, and Fig. 4 is a -
5 is a perspective view of the seed-side inner ring, FIG. 6 is a front view of the seed-side inner ring attached to the hopper body, viewed in the axial direction of the feed roll, and FIG. FIGS. 8a and 8b are perspective views of essential parts showing the hopper main body and the outer ring in an exploded manner, and FIGS. 1... hopper body, 1a... coupler, 2... storage container, 3... seed storage section, 4... fertilizer storage section,
5...Seed shooter, 6...Fertilizer shooter,
7... Feeding roll, 7a... Rotating shaft, 8, 9
... Groove, 10 ... Shutter, 11 ... Partition wall, 12
...Inner ring, 12a...Flange, 13...
External ring, 14...Stepped portion, 15...Notch, 16
...Pedestal, 17...Stealing Department, 18...Slit,
19...Cavity part, F-1...Fertilizer channel, F-2
...Flow path for seeds.

Claims (1)

[Scope of Claim for Utility Model Registration] In a hopper of a fertilization and seeding machine that cuts out a fixed amount of fertilizer and seeds to a lower shutter by a rotatable feed-out roll that passes through the lower part of the hopper body, both ends of the feed-out roll An inner ring surrounding the circumferential surface and an outer ring spaced apart from the inner ring are respectively attached to the hopper body, and the outer circumferential surface of the feed roll is controlled by the inner ring, the outer ring, and the hopper body. A hollow portion is provided around the entire circumference, a notch is provided on the inner periphery of the lower part of the inner ring to create a gap between the inner ring and the outer circumferential surface of the lower portion of the feed roll, and the hollow portion is further connected to the shutter. A hopper of a fertilizing and seeding machine, characterized in that a slit for communication is provided in the hopper main body along the outer peripheral surface of the lower end of the feed roll.