JPH0449857Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention adjusts the fertilization and sowing position from side to side with a fertilization and seeding device attached directly to the rear of a tractor or to the rear of a rotary tiller attached to a tractor. In this configuration, the drive wheel portion for obtaining rotational power is also movable left and right depending on the condition of the ridges.

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

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

(c) Problems to be solved by the invention The purpose of the invention is to solve problems when it is necessary to sow in irregular positions with the sowing and fertilization position largely eccentric to the left or right, or when sowing irregularly at the edge of the field. If necessary, if the drive wheel and the drive frame that supports it are fixed to the hitch as in the past, it is impossible to eccentrically position the seeding/fertilization device beyond a certain level. .

In this configuration, the drive frame and the drive wheel supported by it can also be slid left and right on the mounting beam and the feeding shaft, in order to enable the sowing and fertilization position to be moved left and right. This is what I did.

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

In the fertilizing seeding machine, the mounting beam 8 and the feeding shaft 7 are arranged parallel to each other in the left and right directions of movement, and the driving frame 38 is fitted onto the outer periphery of both the mounting beam 8 and the feeding shaft 7 and is slidable left and right. A chain case 47 is provided, and the chain case 47 is slidable left and right together with the drive frame 38, and the upper end of the chain case 47 is pivotally supported on the feed-out shaft 7, and the lower end of the chain case 47 protrudes downward in a biased state. The shaft 9a of the drive wheel 9 is supported on the drive frame 38, and the rotation of the drive wheel 9 can be transmitted to the feeding shaft 7 on the upper part of the chain case 47.
By sliding left and right on the feeding shaft 7, the drive wheel 9
The structure is such that the position of the image can be arbitrarily selected and fixed.

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

Fig. 1 is a rear perspective view of the fertilizing seeder of the present invention attached to the rear of a rotary tiller, Fig. 2 is a side view of only the fertilizing seeder, and Fig. 3 is a portion of the drive frame 38 and drive wheel 9. FIG.

The overall configuration will be explained based on FIGS. 1 and 2.

A rotary tiller R is attached to the rear of the tractor T. The fertilizing and seeding machine of the present invention is attached from the rear to the tail wheel lateral rod 50 that supports the tail wheel 51 of the rotary cultivating device R.

That is, the "U"-shaped part of the hitch 13 shown in FIG. 2 is inserted into the rectangular part for attaching the rear working machine of the tail wheel horizontal rod 50 from behind, and connected by the hitch pin 13a.

Only by locking with the hit pin 13a,
Since play occurs between the rectangular part for mounting the rear working machine and the hitch 13, the pressing body 13b is pushed by the tightening bolt 13c to eliminate the play between the hitch 13 and the rectangular part for mounting the rear working machine.

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, a female screw body fixed in the left and right slide tubes 26, 26 is connected. 26b
The fertilizing and seeding machine is raised and lowered horizontally. When moving up and down using the seeding depth adjustment lever 15, a guide rod 53 attached to the rotating frame 25 is used.
The slide tube 26 on the outer periphery moves up and down while maintaining a horizontal state.

A bracket 26a protrudes rearward from below the left and right slide tubes 26, 26, and is fixed by welding to the lower side of the mounting beam 8.

A drive frame 38 supporting a drive wheel 9 and a fertilizing/seeding frame 58 supporting a feeding device and roller frame 36 are slidably disposed on the mounting beam 8. After adjusting the position of the fertilizing/seeding frame 58, it is tightened and fixed using the tightening handle 37.

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
The 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 fertilization hopper 1 is similarly fixedly installed on the fertilization delivery attachment A via left and right one-touch attachments 31, 31. And sowing hopper 2
The lower part is fixedly installed on the sowing and feeding device B by right and left one-touch fittings 32, 32, and the front part is further fixed to the fertilizing hopper 1 by 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. -ing

The one-touch fittings 30, 31, 32, and 29 have locking tools 65, 4 arranged at corresponding positions, respectively.
3, 44, and 42.

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.

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.

Further, a biasing spring that biases the parallel links 24, 23 downward is provided, and a spring force adjustment lever 35 is provided that adjusts the spring force of the biasing spring. Furthermore, a groove making disk 10 is provided below the roller frame 36.
A support rod 54 is projected, and the rotary shaft of the groove-making disk 10 is supported by a bearing at the lower end of the support rod 54.

The groove-making disk 10 is composed of two wedge-shaped stainless steel disks that are in close contact with each other at the front, and a sowing guide pipe 20 is installed in the wedge-shaped widening portion at the rear of the groove-making disk 10. It is embedded.

Further, the fertilizing guide pipe 19 disposed in the front part of the sowing guide pipe 20 protrudes from the inner surface of the roller frame 36 through the opening 36b, and is disposed outside the groove cutting disc 10 at a position protected by a scraping plate 41. is falling.

The seeding guide pipe 20 is a roller frame 36
Since the upper part is also covered with the bellows rubber 18, it is not possible to check the progress of the seeds passing through the inner surface. Therefore, a viewing window 36a is provided in the roller frame 36 in the direction of inclination of the sowing guide pipe 20. It is drilled according to the

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 body of the tractor T moves up and down, the sowing depth can be kept constant. .

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 17, 18, it is possible to absorb changes in the gap between the feeding device section and the roller frame 36 section.

Next, the drive structure of the feeding device, which is the main part of the present invention, will be explained based on the drawing of FIG.

A drive frame 38 is supported on the mounting beam 8 so as to be slidable and fixed from side to side. A holding part 38a is provided at the tip of the drive frame 38, and the mounting beam 8 is held by the holding part 38a and fixed by a tightening bolt 38b. Therefore, when the tightening bolt 38b is loosened, the drive frame 3
8 can be slid left and right or removed from the mounting beam 8.

The central lower part of the mounting beam 8 is welded and fixed to the slide tube 26 by a bracket 26a.
When moving the driving frame 38 or the fertilizing/seeding frame 58 from the right side to the left side across the center, they are removed once and then re-inserted to the right or left end.

A chain case support plate 38c consisting of two left and right plates is protruded downward from the drive frame 38, the upper end of the chain case 47 is inserted into the chain case support plate 38c, and the feeding shaft 7 is inserted in the left and right direction. This is what we support. The chain case support plate 38c and the chain case 47 do not restrict the horizontal movement of the feed-out shaft 7, and the chain case support plate 38c and the chain case 47 are configured to be movable left and right with respect to the feed-out shaft 7. -ing Naturally, the feeding shaft 7 is also configured to be movable left and right.

A drive wheel 9 is attached to the lower end of the chain case 47.
is supported by the shaft 9a.

A guide rod 21 is inserted between the rear end of the main frame 38 and the chain case 47 of the drive wheel 9.
By interposing the biasing spring 22, the drive wheel 9 is always grounded on the soil surface.

The rotation of the drive wheel 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 structured as follows.

The feeding shaft 7 protrudes from side to side with a length approximately equal to the length of the mounting beam 8, and as shown in FIG. There is. A feed-out roll and a drive gear are arranged inside the fertilization feed-out device A, and these are driven by a feed-out shaft 7, so that the feed-out roll feeds out a fixed amount of fertilizer in the fertilization hopper 1. In addition, the drive gear protrudes rearward, and when the seed feeder B is attached, the drive gear for the seed feeder also meshes with the seed feeder, forcing the feed roll of the seed feeder to rotate.

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

First, not only the sowing/fertilizing section can be slid on the mounting beam 8, but also the drive frame 38 that supports the drive wheels 9 can be slid. Since the position of the driving wheel 9 can also be moved, it is possible to make the position of sowing and fertilizing largely eccentric. The position 9 can also be moved, and stable driving force can be obtained.

Secondly, when sowing seeds at the edge of a field, if the drive wheel 9 is in a fixed position, it may not be possible to place the seeding device close to the ridge; however, as in the present invention, By moving the drive wheel 9 and the drive frame 38 that supports it, it is possible to arrange the fertilizing and seeding device at the end without protruding the attachment beam 8.

[Brief explanation of the drawing]

Fig. 1 is a rear perspective view of the fertilizing seeder of the present invention attached to the rear of a rotary tiller, Fig. 2 is a side view of only the fertilizing seeder, and Fig. 3 is a portion of the drive frame 38 and drive wheel 9. FIG. A... Fertilizer feeding device, B... Seeding feeding device, 1... Fertilizer hopper, 2... Seeding hopper, 7... Feeding shaft, 8... Mounting beam, 9...
... Drive wheel, 26 ... Slide tube, 38 ... Drive frame, 38c ... Chain case support plate, 47
...Chain case.

Claims (1)

[Scope of utility model registration request] In the fertilizing seeding machine, the mounting beam 8 and the feeding shaft 7 are arranged parallel to each other in the left and right directions of movement, and the driving frame 38 is fitted onto the outer periphery of both the mounting beam 8 and the feeding shaft 7 and is slidable left and right. A chain case 47 is provided, and the chain case 47 is slidable left and right together with the drive frame 38, and the upper end of the chain case 47 is pivotally supported on the feed-out shaft 7, and the lower end of the chain case 47 protrudes downward in a biased state. The shaft 9a of the drive wheel 9 is supported on the drive frame 38, and the rotation of the drive wheel 9 can be transmitted to the feeding shaft 7 on the upper part of the chain case 47.
By sliding left and right on the feeding shaft 7, the drive wheel 9
A drive structure for a feeding part of a fertilizing and seeding machine, characterized in that the position of the feeding part is configured to be arbitrarily selected and fixed.