JPH1128004A - Tilled remnant treating device for rotary plowing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that a high cost excavator using complex shape exclusive parts have to be used since conventional tilled remnant treating mechanisms are simply those which exclusive excavating parts such as a spade or a plow are mounted at one side for guiding mud of unplowed ground at the outside of rotary plowing claw and the acting direction of a load at excavation is push pressing type, then the excavating tools are apt to be deformed. SOLUTION: This tilled remnant treating device for a rotary plowing tool is provided by pivoting left and right end parts of plowing pipe 2 attached with plural rotary blowing claws 1 to a transmission case or between the lower end parts of side frame of supporting plate 16, etc., as freely rotatable, arranging a holder 34 at these side frames at least one of the outer front lower side thereof, mounting the base end 7c part of a tilled remnant treating claw 7 at the holder 34 so that the protruded lower end part 8 of the tilled remnant treating claw 7 has a retreating angle in the rear side to the advancing direction and so as to position the same part in the vicinity of an outer diameter of a locus of the rotary excavation of the plowing claw 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a residual tillage treatment device for a rotary tiller. The present invention relates to a residual tillage treatment device provided on the outer side of a tilling claw that performs rotary excavation with a constant tilling width, and performs rotary tilling by running while pulling the remaining tillage treatment claw in an outer untilled mud portion. This is to excavate the untiled side mud at the lower part of the side frame where the claws do not act as the aircraft advances.

[0002]

2. Description of the Related Art There are conventional residual tillage treatment apparatuses disclosed in Japanese Utility Model Laid-Open Nos. 48-100707 and 51-127402.
These residual tilling treatment mechanisms simply attach to one side a plow or plow-like excavating tool that is a dedicated part that guides the mud on the uncultivated land outside the rotary tilling claw to the rotary tilling claw side. However, in such a digging tool, the digging tool is easily deformed because the acting direction of the load at the time of digging is a pressing type. Had become.

[0003]

SUMMARY OF THE INVENTION The present invention is to solve such a problem of the conventional device, and has taken the following technical means. That is, a plurality of rotary tilling claws 1, 1,. . . The left and right ends of the tilling pipe 2 to which are mounted are rotatably mounted between the lower ends of the side frames such as the transmission case 15 or the support plate 16, and the holder 34 is disposed at the outer front lower part of at least one of these side frames. In the holder 34, the projecting lower end 8 of the residual tillage processing claw 7 has a receding angle on the rear side in the traveling direction, and is further positioned near the outer diameter of the rotary excavation locus of the tillage claw 1, 1. In addition, the residual tillage processing device of the rotary tilling device is characterized in that the base end 7c of the residual tillage processing claw 7 is attached.

[0004]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated example shows a residual tillage treatment device attached to one side of a rotary tillage tool 5. The front, rear, left and right directions in the description are directions with respect to the traveling direction “A” of the rotary tiller 5. The rotary tiller 5 is attached to an elevating link such as a three-point link 11 for mounting a working machine disposed on the front and rear of the body 10 of the agricultural tractor, and is raised and lowered by an operation of the agricultural tractor driver or an automatic control operation. I do. The driving force of the PTO shaft 12, which is an external power take-out device of the agricultural tractor, is input to the input shaft 14 via the universal joint 13, and the driving force passed through the transmission case 15 is transmitted to the tilling pipe 2.

The case where the transmission case 15 is located at the center in the left-right direction of the rotary till 5 is called a center drive type tillage device, and the transmission case 15 is located at one side in the left-right direction of the rotary till 5. Is called a side drive cultivator, and the one in the figure is a transmission case 1 on the left.
5 is a side drive type tilling device in which 5 is disposed. The tilling pipe 2 is placed between the transmission case 15 on the left and the support plate 16 on the right.
Are mounted via bearings or the like, and a plurality of claw holders 17, 1 radially attached to the tilling pipe 2 are provided.
7. . . . Tilling claws 1,1. . . . Is attached to be removable. The rotation of the tilling pipe 2 causes the tilling claws 1, 1. . Rotates in the direction of the arrow "b" which is a down cut. Thereby, the field surface mud “A” is excavated and becomes excavated and scattered mud “B” scattered backward.

[0006] The tilling pipe 2 and the tilling claws 1,1. . A main cover 3 having a fixed length in the front-rear direction
Are mounted between the transmission case 15 and the support plate 16. A front edge of an elastic plate 18 made of a rubber plate or a soft resin material having substantially the same width as the main cover 3 is attached to a rear edge of the main cover 3. The front edge of the cover 19 is attached.

On the upper surface of the rear cover 19, rear ends of the bifurcated support arms 21 and 21 having a center swinging portion 20 protruding forward in the center in the width direction are provided integrally. At the left and right ends of the rear cover 19, holding frames 22, 22 also serving as reinforcement are provided.
The upper end of the main cover 3 and the rear edge of the main cover 3 are connected while being swingably regulated by spring plates 23,23. Thereby, the rear cover 19 is attached to the main cover 3 so as to be able to swing up and down, left and right, and back and forth. In order to further restrict this swing, support frames 24, 24 are respectively provided to project upward from the right and left rear edges of the main cover 3, and the projecting ends and the rear ends of the support arms 21, 21 are provided on the upper surface of the rear cover 19. The push-pull rods 25, 25 are axially mounted between the mounting frames 21a, 21a to be mounted on the rim.

The lower end of the push-pull rod 25 is a pin 26
The upper portion of the push-pull rod 25 is configured to be freely slidable in the axial direction in the hole of the top 27 in the support frame 24 or to be lockable by pushing in the lock pin 28. The push-pull rod 25 is provided with lock holes at a plurality of positions (not shown).
Vertical movement of the rear cover 19 with respect to the main cover 3 is restricted. Reference numerals 29, 29 denote lock rings for adjusting the pressing force of the upper and lower coil springs 30, 31 attached to the push-pull rod 25. When the lock pin 28 is in the free state, the lock ring 29 When the upper coil spring 30 is strengthened, the rear cover 19 is lifted upward in a side view posture to reduce the pressing force, and the lower coil spring 31 is strengthened. Rear cover 19
Significantly increase the leveling pressure and increase soil movement.

At the rear of the rear cover 19, as shown in the perspective view of FIG. 5, an isosceles triangular center cover lid 41 is provided at the center in the left-right direction, and a substantially trapezoidal corner cover lid 4 is provided at both left and right ends.
2, 42 are detachably attached. For example, a case where the center cover lid 41 is removed will be described. In order to face the opening of the lid removed, the tip of the double earth plate for ridges, which is a separate working machine attached to the center in the left-right direction, is faced. If the tip of the double earth plate for ridges, which is a separate working machine, can be attached to the rotary tilling tool 5 in this way, the working device length in the combined mode can be shortened, and the combined working device projects rearward from the machine body. The amount of overhang can be reduced, and turning and running can be easily performed. Also, by removing this lid portion, even if the tip of the double slab for the center ridge is positioned below the rear cover 19, the vertical swing of the rear cover 19 is not hindered. A large leveling plate for leveling is not required.

The periphery of the rear cover 19 will be described mainly with reference to the overall perspective view of FIG. 5. A leveler 43 is mounted behind the rear cover 19 so as to be swingable up and down around the rear edge of the rear cover 19. I have. The leveler 43 of this example presses the mud surface with its own weight, and a bar-shaped tooth 44, 44. . . . The grass and straw moving along the lower edge of the tooth 44 to the excavated mud B side are pushed into the tilling mud by the own weight of the leveling leveler 43 and the elastic force of the tooth 44. I have.

Next, a description will be given of a residual tillage treatment device, which is a main part of the present invention. In FIG. 4, in order to make the configuration easy to understand,
It is the left side view which removed the side cover 4 provided in the side of the tilling pipe 2. Normally, as shown in FIG. . The upper side of the tilling pipe 2 is covered with a side cover 4 that is disposed inside the transmission case 15 and includes a front side cover 4a and a rear side cover 4b.

FIG. 1 is a right side view and FIG.
The area around the side cover 4 on the 6 side will be described. The residual tillage treatment device is attached to the transmission case 15 so as to protrude outward while retreating downward from the lower front side of the support plate 16 having a small thickness in the width direction with respect to the transmission case 15 in order to facilitate the traveling operation close to the ridge. The residual tillage generated below the support plate 16 is reduced as much as possible. More specifically, a metal 32 having a bearing (not shown) is provided below the support plate 16 with bolts 33, 33. . Support plate 1
6 and a bracket 35 having a holder 34 at the front portion is fastened together by using the bolt 33.

The holder 34 is located on the front outer side in the traveling direction of the support plate 16, and the upper end 7 c of the residual tillage processing claw 7 is attached with one attachment bolt 36. The residual tillage processing claw 7 has a front edge portion from the middle to the lower side in an “L” shape in a front view. The edge 8a is easily stabbed in mud. The excavating edge 8a has a curved surface that gradually escapes rearward in a rearward direction when viewed from the side, so that the curved surface can be stably pierced into uncultivated mud when moving forward. The protruding lower end 8, which is the lowermost end of the left and right bent portion 8b of the protruding lower end of the excavation blade edge 8a, is lowered to a position near the rotation locus of the tilling claw 1, and the excavation depth is maintained at substantially the same depth. .

The back cultivation processing claw 7 is, when viewed from the rear, with respect to the upper end of the mounting of the holder 34, a lower excavation edge 8 from the middle in the vertical direction.
The portion a protrudes outward to cut the uncultivated mud on the widthwise outer side. The front and rear side covers 4
Although a and 4b are substantially symmetrical with the left side cover 4,
The right rear side cover 4b is provided with a sub side cover 6 so as to be slidable vertically downward. 37,
Reference numeral 37 denotes a mounting screw for inserting the sub side cover 6 into the elongated hole 3.
It is mounted so as to be freely slidable or fixed vertically along 8, 38.

1 and 3, as the excavating blade edge 8 a above the front edge approaches the lowermost projecting lower end 8 in the side view, the rear tillage processing claw 7 extends far below the support plate 16. The extension side is a left-right bent portion 8b which is a mud guide surface inclined inward toward the front edge side of the sub-side cover 6 indicated by a virtual line in rear view. When the rotary tilling tool 5 moves forward and scrapes off the mud on the uncultivated land side below the support plate 16 by the left-right bent portion 8b, the cut mud is easily guided to the inside of the sub-side cover 6, and Tillage claws 1,1. . When the soil is finely crushed to a predetermined size, it does not escape to the outside.

FIGS. 6 and 7 show another embodiment of the claw of the residual tillage treatment device, which will be described below. The remaining tillage processing claw 7a shown in FIG. 6 is a rotating claw that is eccentric to the side used for the normal rotary tillage tool 5, and the holder 34 of the bracket 35.
By attaching the base end 7c portion to the portion with the mounting bolt 36, the rotary claws, which are produced in large numbers as standard products and are inexpensive, are to be commonly used as traction claws and shared with the rotary claws. There is no need for special molds and jigs, and it can be manufactured at low cost. FIG. 2 is a side view showing a state where the rotary claw is attached as a traction claw. In this case, the left-right bent portion 8b near the claw protruding lower end 8 serves as an inward excavated mud guide surface.

The remaining tillage processing claw 7d shown in FIG. 7 is of the strength-improving type shown in FIG.
While the rear edge of d is connected to the reinforcing face plate 39 to reinforce it,
The excavated mud is guided toward the tilling claw 1 by using the reinforcing face plate 39 as a curved surface for mud guide. FIG. 8 is a plan view of the right side of the main part.
This is a configuration in the case where a single soil cultivator 40 is attached to the rear of the residual tillage treatment device in a state where the cultivation device is attached to a part, and the vehicle runs near a ridge which is a partition from an adjacent field.

In the single cultivation work of the ridge, the tilling mud is advanced while moving to the tilling claw 1 side to form a small groove inside the ridge. With the laterally bent portion 8b of the portion 8, the uncultivated mud is also moved to the inner side of the cultivating claw 1 to some extent at the front side of the single soil cultivator 40, so that the mud applied to the single soil cultivator 40 is reduced and the operation is easy. Become. In addition, even if a driver who is not used to the tilling work may damage the ridge with the tilling claw 1, the tilling work is unlikely to cause residual tilling even when performing the excavation work.

[0019]

The present invention provides a plurality of rotary tilling claws 1, 1. . . The left and right ends of the tilling pipe 2 to which are mounted are rotatably mounted between the lower ends of the side frames such as the transmission case 15 or the support plate 16, and the holder 34 is disposed at the outer front lower part of at least one of these side frames. In the holder 34, the projecting lower end portion 8 of the residual tillage processing claw 7 has a receding angle on the rear side in the traveling direction, and is further positioned near the rotary excavation outer diameter locus of the tillage claw 1, 1. Since the configuration of the residual tillage treatment device of the rotary tilling tool is characterized in that the base end 7c of the residual tillage treatment claw 7 is attached, excavation is performed as the body 10 of the agricultural tractor advances in the direction of the arrow "a". The blade 8 has a curved surface that gradually escapes backward in the backward direction when viewed from the side, and the curved surface is easily and stably pierced into uncultivated mud when advancing. , And a rotating tiller 1 1. . The mud can be continuously excavated to the same depth as. .

Further, when this towing type excavating blade is used in common with a rotatable rotary tilling claw, an excavating blade with lower cost can be provided as compared with a conventional product which is a dedicated part.

[Brief description of the drawings]

FIG. 1 is a right side view of a rotary tiller for explaining a main part.

FIG. 2 is a side view showing a case where the traction type excavating blade in FIG. 1 is used in common with a rotary type excavating blade.

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a left side view of the entire rotary tiller.

FIG. 5 is an overall perspective view in which a leveler is attached to the rear cover part of FIG. 4;

FIG. 6 is a perspective view of a rotary drilling blade that can be used in common.

FIG. 7 is a modified embodiment of the excavation blade of FIG. 6;

FIG. 8 is a plan view in the case where a cultivator is arranged rearward.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tilling claw 2 Tilling pipe 3 Main cover 4 Side cover 5 Rotary tillage tool 6 Sub side cover 7 Residual tillage processing claw 8 Projection lower end

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshio Takechi 660 Takubo, Shigenobu-cho, Onsen-gun, Ehime Pref. Inside the Shigenobu Division of Yamamoto Seisakusho (72) Inventor Yasushi Yasushi 660 Takubo, Shigenobu-cho, Onsen-gun, Ehime Company Yamamoto Manufacturing Co., Ltd.

Claims (1)

[Claims] 1. A plurality of rotary tilling claws 1, 1,. . . The left and right ends of the tilling pipe 2 to which are mounted are rotatably mounted between the lower ends of the side frames such as the transmission case 15 or the support plate 16, and the holder 34 is disposed at the outer front lower part of at least one of these side frames. In the holder 34, the projecting lower end 8 of the residual tillage processing claw 7 has a receding angle on the rear side in the traveling direction, and is further positioned near the outer diameter of the rotary excavation locus of the tillage claw 1, 1. ,
A residual tillage processing device for a rotary till, wherein the base end 7c of the residual tillage claw 7 is attached.