JP2523128Y2 - Arrangement structure of the trenching machine in the tillage device - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention excavates a ditch at a predetermined interval in a no-till field, and digs out the excavated soil to both sides of the ditch, The present invention relates to an arrangement structure of a trench cultivator in a tilling apparatus configured to cover seeds and the like in a ridge-shaped portion formed by stirring on a field.

(B) Conventional technology Conventionally, a tilling device is mounted on a rear part of a traveling body such as a tractor, and a tractor is driven while driving a tilling shaft by mounting a grooved claw at an interval on a cultivating shaft of the cultivating device. Forming a pair of left and right grooves is already known.

(C) Problems to be Solved by the Invention In the above-described groove forming machine in the tractor, the mounting position of the groove forming claw is shifted laterally with respect to the position of the rear wheel of the tractor. However, at a later date, when performing cultivation management work such as additional fertilization at the time of growing crops, spraying chemicals, or burying wheat, the rear wheel of the tractor may fall out of the groove formed at the time of grooving, In such a case, there was a problem of stepping on the crop.

(D) Means for Solving the Problems In the present invention, a tillage device is mounted on the rear side of the traveling machine body 1. Stirring claws 12 of a small diameter rotation locus for stirring the topsoil and seeds, and a groove claw 10 of a large diameter rotation locus for throwing soil while excavating a groove are provided at a predetermined interval, and the cropping claw is provided behind the tilling device 2. The groove claw 10 is composed of a ditch body 25 for scooping up the excavated soil, and the earth covering plate 26 for guiding the soil scooped up by the ditch body 25 onto the ridges on both sides where the stirring claw 12 is stirred. A soil covering device 21 is provided, the distance between the groove forming claws 10 and the soil covering device 21 constituting the groove making machine is matched with the distance between the rear wheels 1b, 1b of the traveling body 1 and the groove making claws 10, 10 And soil covering equipment 21,21
Is located on the rearward extension line of the rear wheels 1b, 1b to solve the above-mentioned problem.

(E) Action When the aircraft is running while rotating the tilling shaft that is laid horizontally in the left and right direction of the tilling device attached to the rear of the traveling machine, the seeds are stirred by stirring the topsoil and the seeds on the no-tillage field with stirring claws. The soil of the no-tillage field is settled on the soil surface of the no-tillage field, and the ditches of the no-tillage field are rotated with the tilling shaft while the soil of the no-tillage field is scraped up immediately after the rear wheel of the tractor and thrown to the left and right sides. The soil is covered on the left and right ridges stirred by the stirring claw.

Then, when the crop which is sown in the no-till field and germinates and grows in the ridges is subjected to additional fertilization, chemical spraying, or soiling for wheat, etc. at a later date, the tractor rides into the field and the wheel then enters the ditch. When aligned as described above, the rear wheel rolls in the groove, and the cultivation management operation can be performed without stepping on the crop in the ridge portion between the grooves.

(F) Embodiment One embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a tractor, and a cultivator 2 is connected to a rear portion of the tractor 2 by a top link 3 and lower links 4 and 4 so as to be able to move up and down. Tilling device 2 with 1 PTO shaft 1a using yoke joint
The gear shaft 2b is connected to the input shaft 2b protruding forward from the gear case 2a, and is interlocked with the input shaft 2b, and the tillage shaft 8 is formed by the chain case 6 and the support plate 7 hanging from the end of the pipe frame 5 extending to both sides from the gear case 2a. And the tilling axis 8
A plurality of groove forming claws 10 are mounted as a pair on the left and right sides of the tractor 1 corresponding to the rolling trajectory of the rear wheels 1b, 1b, that is, on the extension of the rear wheels 1b, 1b. Extension shafts 11 connected to and between the groups of grooved claws 10 of the cultivation shaft 8 and outside thereof, and both ends of the cultivation shaft 8 so as to rotate integrally.
Are mounted with a plurality of stirring claws 12. The upper part of the tilling shaft 8 is covered with a rotary cover 13, and the rear cover 15 is pulled up and connected to a toolbar 16.

A pair of left and right brackets 17, 17 spaced apart from each other by a distance equal to the ridge width are provided on both sides of the horizontal frame 16 a at the rear end of the toolbar 16 so as to project forward, and are fixed to the tips of these brackets 17. Support rod 19 on the vertical pipe 18
Are inserted from above and screwed with bolts 20.

The soil covering device 21 is attached to the connecting pipe 22 and is a groove dredging body 25 for forming a soil in a portion plowed by the groove forming claw 10.
In front of the grooved body 25, a cultivation substrate 23 whose rear portion is expanded in a triangular shape in plan view is formed, and left and right covering plates 26, 26 screwed with the front portion of the cultivation substrate 23 are integrally formed. Make up.

The earth covering device 21 is provided with the above-mentioned grooved body in a side view.
A groove depth adjustment gap is provided between the rear portion of the earth cover plate 25 and the earth cover plate 26, and a level guide plate 27 screwed up and down to be adjustable below the earth cover plate 26 is provided to adjust the groove depth adjustment gap. Thereby, the margin for adjusting the shallow depth of the groove can be sufficiently ensured, and the ridge surface can be formed favorably.

In addition, an upright portion of an L-shaped resistance bar 31 in a side view is inserted into a lower portion of the connection pipe 22 and tightened by a bolt 28 so as to be able to be moved up and down, and a horizontal portion of the resistance bar 31 is formed. A triangular plate 30 is fixed to the lower surface.

The connecting pipe 22 is fitted to the lower part of the supporting rod 19 and is screwed up and down by bolts 28a.

In such a soil covering device 21, the leveling guide plate 27
Has elongated holes 29, 29 in the front and rear portions in the vertical direction, and has a guide groove 29a opened upward in the middle portion, and bolts 29b, 29b are attached to the front portion of the leveling guide plate 27. Also, since the round holes formed in the rear portion and the elongated holes 29, 29 are inserted, the leveling guide plate 27 can be adjusted up and down with respect to the earth covering plate 26 and fastened.

Further, the grooved body 25 includes a pair of left and right parallel side plates 32, 32.
Are connected by the scooping plate 33, and the front end of the scooping plate 33 penetrates into the lower part of the rear rotation locus of the groove claw 10 as shown in FIG. Of the side plates 32, 32
The upper edge of the front and the upper edge of the scooping plate 33 are connected to the lower edge of the front of the earth covering plate 26 by a joint plate 35, and the rear portions of the left and right cultivation substrates 23 are fitted with the rod 36 and the inner end of the pipe 37. It can be adjusted by screwing with bolts 38, and the lower edge of the leveling guide plate 27 is set so that the rear part is slightly higher than the front part as shown in FIG. A ridge-shaped portion (ridge-shaped portion) to be described later is formed so that the center of the top surface is higher.

Reference numeral 39 denotes a guide plate whose front portion is screwed to the side cover 40 of the tillage device 2, which is inclined toward the outside rear and is separated by the throwing passage 41 between the cultivation substrate 23 and the cover soil plate 26. Yes,
Its front portion is linear in plan view, but its rear portion is gently curved outward as shown in FIG.

Further, the rotation trajectory of the tip of the stirring claws 12... Is such that the ground surface is slightly scraped off as shown by the dashed line in FIG. 1, and the auxiliary cover screwed to both ends of the rotary cover 13.
Reference numeral 45 covers the extension shaft 11, and the rear cover 15 is composed of an iron plate 15a rotatably connected to the rear edge of the rotary cover 13 and a rubber plate 15b connected to the rear edge thereof. The upper surfaces of the throwing passages 41, 41 on both sides are covered.

Numeral 46 is a stirrer that cuts the straw that was cut and sprayed by the cutter during the harvesting and threshing work by the combiner, and the seeds that were scattered by the seeding device or the fertilizer that was sprayed by the fertilizer on the stirrer.
A pressing plate for continuously pressing the upper surface of the agitated material, thereby pushing down the seeds and the like exposed on the surface and leveling the upper surface, and covering the right and left from the rear portion of the iron plate 15a. The lower ends of a pair of telescopically adjustable support rods 47, 47 suspended forward between the devices 21, 21, and a pair of right and left telescopically adjustable support rods 49, suspended from the front support frame 48 of the auxiliary cover 45. It is screwed to the lower end of 49.

The seeder or fertilizer may be attached to the front of the tillage device 2, but may be independent and seeded or fertilized in a separate process.

The tilling device 2 can perform a normal tilling operation by removing the extension shaft 11 from the end of the tilling shaft 8 and attaching a tilling claw to the tilling shaft 8. As shown in the figure, after the oil seal 51 is inserted between the holding cylinder 50 and the tilling shaft 8 from the outside, the cover plate 52 and the collar 53 are loosely fitted, and the outer ends thereof are fixed by the set pins 55. . Thereby, it is possible to prevent muddy soil from entering the oil seal 51.

Furthermore, when the tractor 1 and the tillage device 2 are loaded on a truck or the like and transported, if the extension shaft 11 is left attached, the extension shaft 11 projects to the side, and the extension shaft 11 collides with an obstacle and is damaged. In such a case, in such a case, the bolt 28a is loosened and the soil covering device 21 is removed from the tillage device 2 together with the connecting pipe 22, and the upper end of the connecting pipe 22 is placed on the upper end of the connecting pipe 22 as shown in FIG.
Bars 56, 56a shown in the figure are inserted and fastened with bolts 28a,
When the inner diameter of the extension shaft 11 is large, the end of the extension shaft 11 is fitted to the large-diameter portion of the bar 56 or 56a and fixed with the set pin 57 and a split pin for fixing the same. If the inside diameter of the extension 11 is small, the end of the extension shaft 11 is fitted to the small-diameter portion of the bar 56a and fixed with the set pin 57 in the same manner as described above. It can be easily loaded on the carrier and transported in a stable state.

Next, the operation will be described. After sowing and fertilizing in advance in a no-till field sprayed with cut straw, or when seeding and fertilizing are not performed as a preparatory work, a sowing device and a fertilizing device are mounted in front of the tillage device 2. When the tractor 1 travels while driving these devices and the tillage device 2,
Is used to stir the straw, seeds, fertilizers, and the like sprayed in the field scene, and to cut the weeds together with the topsoil to a shallow depth and simultaneously agitate them. … Pushes seeds, etc., which floated on the agitated material into the cutting straw and leveled them out, and the groove making claw 10 which constitutes the groove making machine is in the soil along the rolling locus of the rear wheels 1b, 1b of the tractor 1. And throws the soil diagonally backward and upward.

At that time, since the scooping plate 33 is opposed to the tip rotation trajectory of the groove claw 10 with a small gap L therebetween, the thrown soil can be thrown at a high speed in front of the scooping plate 33, the joining plate 35 and the cultivation soil. Since it collides with the front part of the substrate 23 obliquely upward and strongly, it is smoothly jumped up and thrown in a state where it is hardly attached or deposited, and almost all the soil to be deposited in the groove is scooped up by the scooping plate 33. The cultivation substrate 23 sequentially pushes the scooped soil to the left and right sides, and a part of the thrown soil collides with the earth covering plate 26 and slides as it is, so that the middle portion of the machine width and the rear outside. The soil that repels forward and scatters obliquely outward in the throwing passage 41 is received by the guide plate 39 at the front of the throwing passage 41, guided further outward, and scatters upward. The soil to be sunk is received by the curved portion 26a at the upper part of the rubber plate 15b and the covering soil plate 26 Is cover soil on top of the ridges of the seeds and cut straw is present, the left and right grooves 浚体 2
The ridges formed between 5,25 are leveled by the leveling guide plates 27,27 below the covering soil plates 26,26 extending toward the upper surface so that the center is slightly higher, On the outside, the soil is covered to a slightly wider width than half the width of the ridge, and the other side is
The soil will be covered in the next step.

In the process of germinating and growing the sown seeds at a later date, when topdressing and spraying chemicals, remove the tillage device 2 and attach a fertilizer or sprayer, and when soiling is performed when the crop is wheat. In this case, the tractor 1 is moved into the field and the front and rear wheels 1b, 1b are aligned with the left and right grooves to remove the stirring claws 12... The front and rear wheels
1b, 1b rolls in the ditch, without stepping on the ridge-shaped crop, and when digging, the grooving claw 10 ... scrapes up the soil in the ditch and throws it on the ridge. And put the soil.

(G) Effects of the present invention In the present invention, a tilling device is mounted behind the traveling machine body 1 as described above. A stirrer claw 12 of a small-diameter rotation locus for stirring the seeds and a groove claw 10 of a large-diameter rotation locus for throwing soil while excavating the groove are provided at a predetermined interval. A soil cover composed of a grooved body 25 for scooping up the soil excavated by the claw 10, and a soil covering plate 26 for guiding the soil scooped up by the grooved body 25 onto the ridges on both sides stirred by the stirring claw 12. A device 21 is provided, and the distance between the groove making claw 10 and the soil covering device 21 constituting the groove making machine is adjusted by the rear wheel
1b, 1g, and the groove forming claws 10, 10 and the soil covering devices 21, 21 are located on the rear passage extension line of the rear wheels 1b, 1b. A groove is formed by excavating and throwing a no-till field in a straight line with a claw rotation and soil covering device, and a crop is sown and grown on the ridges between the grooves. When spraying or performing cultivation management work such as putting soil in wheat, by aligning the wheel of the tractor with the groove formed by the groove making claw,
The wheel rolls along the once formed groove, and the cultivation management work after the groove work can be performed smoothly without the wheel riding on the ridge and stepping on the crop.

[Brief description of the drawings]

1 is a side view, FIG. 2 is a plan view, FIG. 3 is a plan view showing a state where the apparatus is connected to a tractor, and FIG. 4 is a groove. FIG. 5 (a) is a perspective view of an extension shaft connecting portion, FIG. 5 (b) is a plan sectional view of a tilling shaft support portion, and FIGS. 6 (a) and (b) are front views of bars. FIG. 7 is a longitudinal sectional view showing a state in which the extension shaft is removed and set on the connecting pipe. 1 ... Tractor, 1b ... Rear wheel, 2 ... Tillage device, 8 ...
Tilling shaft, 10 ... Groove claw, 11 ... Extension shaft, 12 ... Stirring claw,
16 Tool bar, 17 Bracket, 21 Covering device, 25 Groove body, 26 Covering plate, 27 Flat guide plate, 33 Scooping plate, 39 Guide plate 41 ... throwing passage

Claims (1)

(57) [Scope of request for utility model registration] A tiller having a small-diameter rotating locus for stirring topsoil and seeds of a no-till field on a tillage shaft 8 which is laterally mounted on a tillage device. A large-diameter rotating locus for throwing soil while excavating the stirring claw 12 and the groove is provided at a predetermined interval, and the soil excavated by the trench 10 is lifted behind the tillage device 2. A soil covering device 21 including a grooved bream 25 and a soil covering plate 26 for guiding the soil scooped up by the grooved body 25 onto the ridges on both sides stirred by the stirring claws 12 is provided. The interval between the forming groove claw 10 and the covering device 21 is made equal to the distance between the rear wheels 1b, 1b of the traveling machine body 1, and the forming groove claw 10, 10 and the covering device 21, 21 are arranged.
The arranging structure of the trenching machine in the tillage device, wherein the is positioned on an extension of the rear passing of the rear wheels 1b, 1b.