JPH0446505Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention relates to a fertilization seeding machine attached to the rear of a tractor or a walk-behind cultivator.

(b) Prior Art Devices that are attached to the rear of tractors and walk-behind cultivators and that simultaneously perform fertilization and seeding have been known.

For example, Utility Model Application No. 60-133718 and Utility Model Application No. 58-
As in Publication No. 103815.

Further, a feeding device equipped with a scraping brush is known in Japanese Utility Model Application Publication No. 57-115819, and a technique for rotating the scraping brush to release the gap between it and the feeding roll is disclosed in 59−23916
It is said to be publicly known in the publication No.

(c) Problems to be solved by the invention The purpose of the invention is to provide a structure for facilitating cleaning and inspection of the feeding device of the fertilizing and seeding machine.
Conventionally, a cleaning/inspection window was provided on the rear wall of the dispensing case, and by opening the cleaning/inspection window, the inside of the dispensing case was cleaned and the residue was taken out.

However, in this conventional structure, the cleaning/inspection window may open due to an impact or the like during operation, and the fertilizer and seeds inside may spill out.

The present invention uses a rotating wall section with a scraping brush attached as the cleaning/inspection window for this part, and by rotating the rotating wall section with the scraping brush attached, the scraping brush can be removed. The structure is such that it is exposed and the inside of the feeding case is opened to the extent that it can be sufficiently cleaned.

(d) Means for solving the problems The purpose of the present invention is as described above, and next, the configuration for achieving the purpose will be explained.

A feeding device that rotates a feeding roll vertically inside a feeding case, fits fertilizer or seeds into a hole provided on the outer peripheral surface of the feeding roll, and scrapes off the portion overflowing from the hole with a scraping brush, A scraping brush that comes into contact with the feeding roll is fixed to a rotating wall portion of the feeding case that is rotatable about a pivot shaft, and the rotating wall has a hopper placed on the top of the feeding device. It can be rotated about the pivot shaft only when it is removed.

(e) Structure of the embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Figure 1 is a side view of the fertilizer seeding machine of the present invention, Figure 2 is a plan view of the feeding device, Figure 3 is a side sectional view of the hopper and the feeding device, and Figure 4 is a scraping of the feeding device. FIG. 6 is a side cross-sectional view of the cleaning/inspection state with the brush rotated.

The overall structure of the fertilizing and seeding machine will be explained with reference to FIG.

The fertilizing seeding machine of the present invention is attached from the rear to the tail wheel side rod that supports the tail wheel of a rotary tiller.

That is, the "U"-shaped part of the hitch 13 is inserted into the square part for attaching the rear work machine of the tail wheel horizontal rod 50 from behind, and connected by the hitch pin 13a.
If only the hitch pin 13a is used to lock the hitch 13, play will occur between the rectangular part for attaching the rear working machine and the hitch 13. Therefore, by pressing the pressing body 13b with the tightening bolt 13c, the hitch 13 and the rectangular part for attaching the rear working machine are connected. This eliminates the gap between them.

An adjustment frame 52 protrudes above the hitch 13, and a pivot shaft 52a provided on the adjustment frame 52.
A rotating frame 25 is pivotally supported. A rotation adjustment screw 14 is interposed between the adjustment frame 52 and the rotation frame 25, and by rotating the rotation adjustment screw 14, the entire fertilizing and seeding machine rotates rearward about the pivot shaft 52a. It rotates up and down to adjust its level with the soil surface.

The adjustment by the rotation adjustment screw 14 is an adjustment by rotation, but in addition to this, a seeding depth adjustment lever 15 is arranged diagonally forward to adjust the entire fertilizing and seeding machine up and down in a horizontal state. The lower end of the seeding depth adjustment lever 15 is connected to an adjustment screw rod 16 via a joint, and when the adjustment screw rod 16 rotates, the female screw body fixed between the slide tubes 26 and 26 is moved up and down. The fertilizing and seeding machine is raised and lowered horizontally. When moving up and down using the sowing depth adjustment lever 15, slide tubes 26, 26 attached to the rotating frame 25 and fitted into the guide rod 53 are used.
It moves vertically while maintaining a horizontal state.
A bracket protrudes below the slide tube 26 and a mounting beam 8 is fixed by welding.

A drive frame 38 is arranged on the mounting beam 8 so as to be slidable and fastened.
A grounding ring 9 is supported on the ground wheel 8. Further, a fertilization/seeding frame 58 is slidably and fixedly disposed on the mounting beam 8, so that the fertilization/seeding position can be adjusted.

A fertilizing and dispensing device A is attached to the rear of the fertilizing and sowing frame 58, and a sowing and dispensing device B can be attached to the fertilizing and dispensing device A using a one-touch mounting tool.

Further, upper and lower parallel links 24 and 23 are rotatably protruded from the fertilization and seeding frame 58, and a roller frame 36 is attached to the rear ends of the parallel links 24 and 23. A stopper 55 for regulating the downward rotation width of the parallel links 24 and 23 is provided on the fertilization and seeding frame 58. In addition, the parallel link 24,
A biasing spring is provided that attaches the spring 23 downward, and a spring force adjustment lever 35 is provided to adjust the spring force.

Further, the support rod 54 of the groove-forming disk 10 is projected downward from the roller frame 36, and the support rod 54
The rotary shaft of the groove making disk 10 is supported by a bearing at the lower end of the groove making disk 10. The groove-making disk 10 is in close contact with each other at the front.
It is composed of two stainless steel disks that are wedge-shaped in plan view, and a seeding guide pipe 20 is installed in the wedge-shaped widening portion at the rear of the groove-making disk 10.
is embedded. Further, a fertilizing guide pipe 19 arranged in front of the sowing guide pipe 20
is placed on the outside of the groove-making disk 10 at a position protected by a scraping plate 41 to drop fertilizer.

Further, a soil covering disk 11 is protruded and supported from the roller frame 36 behind the seeding section of the groove cutting disk 10. The soil covering disk 11 lightly covers the seeds sown in the grooves made by the wedge-shaped groove cutting disk 10.

Further, a support rod 12a protrudes from the roller frame 36 to support the soil covering roller 12.

The soil covering roller 12 is configured to have a width that covers both the fertilization position and the sowing position, and the soil covering roller 12 compresses the fertilizer and seeds in the furrow.

In the above configuration, the groove making disk 10 and the soil covering disk 11 attached to the roller frame 36
The soil covering roller 12 moves up and down by freely rotating the parallel links 24 and 23 according to the unevenness of the soil surface, so even if the tractor body moves up and down, the sowing depth can be kept constant. be.

On the other hand, the upper hopper and the feeding device part are fixed to the mounting beam 8 and do not follow the unevenness of the soil surface, so between the feeding device and the roller frame 36, the bellows rubber pipe 17, 18, it is possible to absorb changes in the gap between the feeding device section and the roller frame 36 section.

Next, the configuration of the grounding wheel 9 that obtains the driving force of the fertilizing and seeding machine will be explained.

The grounding wheel 9 is connected to the drive frame 38 by the feeding shaft 7.
It is pivoted using the pivot axis. and a chain case 47 between the rear end of the drive frame 38 and the ground wheel 9.
A guide rod 21 and a biasing spring 22 are interposed between the ground wheel 9 and the soil surface to keep the grounding ring 9 in contact with the soil surface at all times.

The rotation of the grounding ring 9 causes the feed shaft 7 to rotate via the chain in the chain case 47. The feeding shaft 7 has a hexagonal shape, and as the fertilizing and seeding unit slides left and right on the mounting beam 8, the fertilizing feeding device A can slide left and right on the feeding shaft 7. It is composed of

The fertilization feeding device A is a fertilization and seeding frame 58.
It is fixedly installed at the rear end, and the fertilizer feeding device A
A sowing and feeding device B is attached to the rear surface of the seeding machine via right and left one-touch fittings 30, 30.

Further, the fertilizing hopper 1 is fixedly installed on the fertilizing feeding device A via left and right one-touch fittings 31, 31. And sowing hopper 2
The lower part is fixedly mounted on the seeding feeder B using the left and right one-touch fittings 32, 32, and the front part is fixed to the fertilizing hopper 1 using the left and right one-touch fittings 29, 29. . Furthermore,
In order to ensure the connection between the fertilizing hopper 1 and the seeding hopper 2, the hinge parts of the lids 45 and 46 are overlapped and a connecting pin is inserted from the side to connect the two. .

The above is the overall configuration, and then Figures 2 and 3
The structure of the feeding device and the hopper portion will be explained based on FIGS.

The mounting beam 8 is fixed to the slide tube 26, and the fertilizing/seeding frame 58 can be adjusted in movement while looking at the scale on the mounting beam 8. A fertilizer feeding device A is fixed to the rear end of the fertilizer seeding frame 58. The seeding and dispensing device B is attached to the rear end of the fertilizing dispensing device A via one-touch fittings 30, 30. Therefore, the sowing and dispensing device B is not directly fixed to the fertilizing and sowing frame 58, but is supported only by being fixed to the fertilizing and dispensing device A using one-touch fittings 30, 30.

Fertilizer dispensing device A is located in the central dispensing case 5.
6, a feed roll 5 is rotated, and fitting holes 5 are formed at several places on the circumference of the feed roll 5.
A is opened. Further, a slide protrusion 71 is fitted into the fitting hole 5a so that the capacity of the fitting hole 5a can be adjusted. Fitting hole 5a
are drilled in 8 locations, so the slide protrusion 7
1 is also formed into a cylindrical shape provided at eight locations on the circumference, and is threadedly moved by rotation of the feeding amount adjusting lever 48, thereby making it possible to adjust the capacity of the fitting hole 5a from the outside. As the feed roll 5 rotates, the fertilizer flowing into the feed case 56 from the lower end of the fertilization hopper 1 is transferred to the insertion hole 5a.
The fertilizer that exceeds the capacity is collected with the scraping brush 3.
Scrape off according to step 3.

As the feed roll 5 rotates downward, the fertilizer in the insertion hole 5a is discharged from the bottom of the feed roll 5, collected by the guide funnel 60, and falls into the bellows rubber pipe 17.
A fertilization guide pipe 19 is disposed below the bellows rubber pipe 17, and the fertilizer falling into the fertilization guide pipe 19 is guided to the side of the groove-cutting disk 10 and fertilized.

The same applies to the seeding device, and a fixed amount of seeds are fed out from the seeding device B and fall from the guide funnel 61 to the seeding guide pipe 20 via the bellows rubber pipe 18, and are sown between the wedge-shaped groove discs 10. be done.

The feed roll 5 is driven by the feed shaft 7, which is rotated by the above-mentioned grounding wheel 9 and passes through the feed roll 5. And the feeding case 56
A gear case 57 is provided on the side surface of the gear case 5.
The drive gear 3 is disposed within 7. The drive gear 3 rotates together with the feed roll 5 at the rotation speed of the feed shaft 7.

When the fertilizer dispensing device A is attached alone, the teeth of the drive gear 3 rotate with the teeth exposed to the rear, and when the seeding device is attached, the drive gear 4 of the sowing dispensing device B rotates. It meshes with the drive gear 3. And the seeding feeding device B
The feeding roll 6 in the feeding case 62,
It rotates in the opposite direction to the feed roll 5. The feed roll 6 also has a fitting hole 6a on the circumference.
is engraved, and a slide protrusion 70 is fitted into the fitting hole 6a. The slide protrusion 70 is adjusted by the feeding amount adjustment lever 49.
It is. A scraping brush 43 is arranged on the rotating outer periphery of the feed roll 6.

Drive gear 4 is arranged within gear case 63.

Also, the gear case 5 of the feeding cases 56 and 62
Bearing cases 59, 64 are provided protrudingly on the side opposite to 7, 63, and feeding amount adjustment levers 48, 49 are disposed inside the bearing cases 59, 64. By adjusting the feeding amount adjustment levers 48 and 49, the size of the fitting hole 5a in the feeding case 56 can be changed, and the size of the fitting hole 5a can be changed.
By changing the amount, the amount of feed can be adjusted.

Furthermore, hopper shutters 40 and 39 are constructed below the fertilization hopper 1 and the seeding hopper 2, and by opening and closing the hopper shutters 40 and 39, the fertilization hopper 1 and the seeding hopper 2 are moved to the fertilization feeding device A. And when removed from the sowing and feeding device B, it can be made into a portable container.

In addition, attachment and detachment between the four parts, the fertilizing hopper 1, the seeding hopper 2, the fertilizing feeding device A, and the seeding feeding device B, can be easily done using one-touch fittings 30, 31, 32, and 29 on the left and right sides. It was. The one-touch fittings 30, 31,
32 and 29 are engaged with locking tools 65, 43, 44, and 42 arranged at corresponding positions, respectively.

In the overall configuration as described above, the main part of the present invention relates to the configuration of the release/opening portions of the scraping brushes 33 and 34 illustrated in FIGS. 3 and 4.

As mentioned above, the scraping brush 33 is in contact with the feeding roll 5, and the scraping brush 34 is in contact with the feeding roll 6. The scraping brush 33 is attached to a rotating wall 33b provided on the front wall of the dispensing case 56 by a fixing bolt 33a with a bracket portion fixed from below. The rotating wall 33b is rotatably supported by a pivot shaft 33c provided on the feeding case 56.

Similarly, for the scraping brush 34, a bracket attached from the lower surface of the rotating wall 34b is attached to the fixing bolt 34a.
The rotating wall 33b is rotatably supported on the feeding case 62 by a pivot shaft 33c.

When the scraping brushes 33 and 34 are in the working state, the rotating walls 33b and 34b face upward, and these portions also serve as drainage channels for fertilizer and seeds from the hoppers 1 and 2. be. A bracket is attached to the lower surface of the downstream gutter section along the slope thereof, and the scraping brushes 33, 34 are brought into contact with the outer circumferences of the feed rolls 5, 6 along the downstream gutter section. Therefore, the upper surfaces of the rotating walls 33b and 34b also serve as the downflow gutter, and the scraping brushes 33 and 34 are protruded in the extending direction of the downflow gutter. It also serves as the drainage gutter department.

In addition, the upper ends of the rotating walls 33b and 34b are connected to the insertion edges 1a and 2 of the lower ends of the fertilizing hopper 1 and the seeding hopper 2.
It also serves as the fitting edge of a, and the rotating walls 33b, 3
Since the insertion edges 1a and 2a of the fertilizing hopper 1 and the seeding hopper 2 are fitted into the hopper 4b, the rotating walls 33b and 34b are not able to rotate when the hopper is placed on the feeding device. Naturally, the scraping brushes 33 and 34 cannot be cleaned or inspected. With this configuration, during work, the cleaning/inspection window which the rotating wall 33b also serves is locked so that it cannot be opened.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, by providing a rotating opening device for the scraping brush that also serves as a cleaning/inspection window, the scraping brush can be replaced by loosening the fixing bolt outside the case 56 rather than inside the case 56. This makes it possible to easily adjust the amount of protrusion of the scraping brush, replace it, and clean the inside of the feeding case 56.

Second, the fixed part of the scraping brush is also used as a rotating wall part, the rotating wall part is fixed by placing a hopper, and the rotating wall can only be rotated when the hopper is removed. This eliminates the possibility of the scraping brush or rotating wall part opening during fertilization and seeding operations.

[Brief explanation of the drawing]

Figure 1 is a side view of the fertilizer seeding machine of the present invention, Figure 2 is a plan view of the feeding device, Figure 3 is a side sectional view of the hopper and the feeding device, and Figure 4 is a scraping of the feeding device. FIG. 6 is a side cross-sectional view of the cleaning/inspection state with the brush rotated. A... Fertilizer feeding device, B... Seed feeding device, 1... Fertilizer hopper, 2... Seeding hopper, 1a, 2a... Insertion edge, 5, 6... Feeding roll, 33, 34... Scraping brush , 33
a, 34a...fixing bolt, 33b, 34b...
Rotating wall, 33c, 34c... Pivot shaft, 56, 62
...Feeding case.

Claims (1)

[Scope of utility model registration request] A feeding device that rotates a feeding roll vertically inside a feeding case, fits fertilizer or seeds into a hole provided on the outer peripheral surface of the feeding roll, and scrapes off the portion overflowing from the hole with a scraping brush, A scraping brush that comes into contact with the feeding roll is fixed to a rotating wall portion of the feeding case that is rotatable about a pivot shaft, and the rotating wall has a hopper placed on the top of the feeding device. A feeding device for a fertilizing and seeding machine, characterized in that it is rotatable about the pivot shaft only when removed.