JPS6312202A - Rotary plowing and soil crushing apparatus due to up-cuttingplowing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention is tilling and crushing soil using the up-cut cultivation method! Regarding A position, for more details, see cutting in the upcut tillage method suitable for deep rotary tillage. In addition to improving the backward throwing effect of tilled soil clods,
In order to crush the surface of the cultivated soil at the same time, the shape of the 11 plow claws and the tilling device have been improved. [Prior Art] Generally, a rotary M1 tiller has a tilling claw attached to a rotary shaft via a claw attachment part, and by rotating the rotary shaft in the forward direction with respect to the direction of travel, tilling, crushing, etc. By using the so-called down cut method in which work such as 41 plowing is carried out, and by avoiding rotating the rotary shaft equipped with the tilling claws in the opposite direction to the direction of travel, the 11 tilling claws remove the soil.
+ U/υ A tilling method called the up-cut Jji method is known, in which tilling is performed while cutting from the bottom toward the ground surface, and work is carried out on a frame.

[Problems to be Solved by the Invention] However, the up-cut tilling method, which is applied to rotary tillers, requires less tilling energy and specific energy than the down-cut tilling method; Since the force is directed backwards, if the traction resistance against the tractor increases, unless the soil cut by the tiller claws is thrown too far backwards, the soil clods will remain within the rotary action area and be re-tilled, increasing the tillage energy. Therefore, while the conventional up-cut tillage method has the advantage of lower cutting resistance and deeper plowing than the down-cut tillage method, it has problems such as inferior backward throwing effect during cutting, making it difficult to put into practical use. There are many problems mentioned above, which are the cause of the delay in widespread use.Furthermore, with the conventional up-cut tillage method, the cut soil clods are large, so it is not possible to plant seedlings or sow crops as it is, and it is difficult to till till. It is necessary to crush the topsoil again afterwards, which increases the number of work hours and is inefficient.
- It improves the backward throwing effect of cut soil clods, and plows so that the subsoil is coarse and the topsoil is fine. / υ work and work on the frame can be done at the same time. This is the first up-cut.
The purpose is to provide tillage and crushing equipment using the -1+ method. [Means for resolving the problem] In order to accomplish the above object, the present invention provides a system in which the axis of the rotary shaft rotates below near the ground surface. Isn't the tip side almost perpendicular to one side? A bent horizontal blade part is formed in the mold, and the starting end of the horizontal blade part is inclined by α degrees in the rotation direction from a straight line passing through the rotary axis and the initial pooping pawl mounting hole, and the intersection point with the pawl rotation radius. In addition to being located in
J using the M1 method to up-knot 1, which is made by installing tilling claws with a smooth arc-shaped rake surface on the side blade part.
In the JI Ulυ device, an auxiliary shaft that can rotate in the forward direction is installed above the rear of the rotary shaft on a tangent line passing through the rearmost end of the mold rotation locus centered on the rotary shaft, and The special feature is that the pawl attachment portions are fixed at a predetermined interval in the circumferential direction, and that the pawl attachment portions of the auxiliary shaft are equipped with soil crushing pawls having a small pawl rotation radius. [Function] Based on the above configuration, the up-cut Jll according to the present invention
According to the method of tilling and crushing equipment, as the tilled soil is cut from the bottom of the tiller toward the ground surface, the cut soil clods become sliced. It slides on the smooth rake surface of the side blade, without remaining in the action area of the rotary, and is rotated in the opposite direction to the rotary axis and stepped backward.
When the thrown soil clod passes through the outer circumference of the mold rotation trajectory at time t, it is crushed by the claws attached to the auxiliary shaft with a small claw rotation radius above the rear of the rotary shaft, and fine topsoil is formed on top of the coarse subsoil. Fall. Therefore, in front of the rotary shaft, which is the active area of the rotary, there is no buildup of morale that increases running resistance and traction resistance, and deep cultivation is possible. [Example 1] Hereinafter, an example according to the present invention will be explained based on the accompanying drawings.
1M+1. :Explanation. FIG. 1 is a side view showing a schematic configuration of a tilling/soil crushing device suitable for upcut tillage according to the present invention, FIG. 2 is a side view showing the shape of tilling claws according to the present invention, and FIG. [
-11 cross-sectional view, Figure 4 is a ■-■ cross-sectional view of Figure 1,
In the figure, the tilling/soil crushing device indicated by reference numeral 1 is attached to the rear of an agricultural tractor via a three-point link hitch mechanism (not shown) so that it can be lowered vertically, and a gear box 2 is provided in the center of the machine. . The gear box 2 is provided with an input shaft 3 projecting forward and connected to the PTO shaft of the tractor via a transmission shaft, a universal shifter, etc., so that driving force can be transmitted. The driving force transmitted from the input shaft 3 is decelerated by a gear reducer gM in the gear box 2, etc., and is transmitted via a chain in the chain case 4 to a rotary shaft 5 pivotally supported on both sides of the lower end of the chain case 4. The driving force is transmitted in either forward or reverse rotation. Here, the rotary shaft 5 is installed so as to be perpendicular to the direction of movement of the tillage/soil crushing device 1, and the direction in which it rolls in the direction of movement is called forward rotation, and the opposite direction is called reverse rotation, and up-cut plowing is performed. In the method, the rotary @5 is driven to rotate. In addition, the rotary shaft 5 has a center drive system in which the chain case 4 is installed at the center of the plowing width, extending to the left and right, and a chain case installed at one end of the river width and a support frame at the other end. A side drive system in which the rotary shaft 5 is supported by a shaft between the two or at least one rotary shaft 5 in a plurality of chain cases 4 installed within a certain plowing width.
The drive system is driven by a cassette drive system, etc. in which a shaft is supported, and a drive system suitable for each pole phase feeding condition is selected. On the other hand, a pawl attachment part 6 is fixed to the rotary shaft 5 by welding or the like at a predetermined interval in the lateral and circumferential directions, and the pawl attachment part 6 is fixed to the rotary shaft 5 in a direction perpendicular to the rotary shaft 5. An Ml-feeding claw 8 is fixed to a mounting hole drilled in the distal end via a bolt/nut 7 or the like. As shown in FIGS. 2 and 3, the tilling claws 8 have a horizontal blade portion 8b bent in an L-shape, the tip of which is approximately perpendicular to one side with respect to the vertical blade portion 8a. , a blade edge 8c is provided at the side edge in the rotational direction from the vertical blade part 8a to the horizontal blade part 8b. 8d is formed. The starting end 8e of the horizontal blade portion 8b of the tilling claw 8 is located between the rotation center O of the rotary shaft 5 and the tilling claw 8.
It is located at the intersection of the die rotation radius R and a line n inclined rotationally backward by α degrees (approximately 10 degrees) from the straight line m passing through the mounting hole 8f of the A horizontal blade portion 8b is formed so as to have the same shape. In addition, the blade edge 8 (1) formed on the back surface of the rake surface of the horizontal blade part 8b is connected to a straight line P that makes an obtuse angle θ to the line n passing through the starting end 8e of the horizontal blade part 8b and the rotation center 0. Here, the horizontal force portion 8b of the tilling claw 8 is formed along M2 in the embodiment in which it is integrally forged with the vertical blade portion 8a.
In order to improve the strength of the base of the Ml feed claw 8, the side blade part 8b is welded to a round bar, square piece, or vibrator material, or the worn side blade part 8b is fixed removably so that it can be replaced, or It is also possible to adjust the mounting angle of the blade portion 8b. In addition, since the arcuate groove formed on the horizontal blade part 8b of the tilling claw 8 is subject to severe wear, the rake face of the horizontal blade part 8b and a predetermined range of the vertical blade part 8a are made of wear-resistant alloy. Alternatively, a coating 9 made of the following may be applied, or two layers of wear-resistant materials made of different materials may be laminated together. Chain case 4 that transmits driving force to the rotary shaft 5
is inclined so that the rotary Irll1ls side is closer to the traveling direction, and a soil adhesion prevention plate 10 made of an elastic material made of rubber or plastic is attached to the front of the chain case 4, as shown in FIG. ing. Also note that gear A7 box 2 is located above chain case 4.
A rotary cover 11 is installed below the rotary cover 11, which is suitable for discharging the soil clods cut and thrown by the tilling claws 8 to the rear. a shield cover 12, a side cover 13 that covers both sides of the plowing width of the rotary shaft 5, a front part 14 installed in front of the shield cover 12, and an apron 15 attached to the rear of the shield cover 12 so as to be vertically movable. And, the side cover 13 is attached to the side cover 13 so that it can be moved up and down.
G) A sub-side cover 16. The shape of the shield cover 12 has a minimum clearance S (approximately 10 cl) between the tip of the tilling claw 8 and the shield cover 12 at a position slightly forward of the uppermost position of the mold rotation locus R, and widens toward the rear from this point. The soil is slanted in the shape of a slope, and is designed to improve the effect of throwing soil clods using the upcut cultivation method. Here, the shield cover 12 is usually formed of a steel plate, but in order to prevent the adhesion of mud, improve the peeling off of the adhered mud, and improve the effect of throwing clods, it is made of a plastic plate. It can be formed by forming, having strips or round bars arranged vertically or horizontally at predetermined intervals in a fork-like manner, or having multiple rolls that can rotate freely or forcibly arranged side by side in the horizontal direction. On the other hand, inside the shield cover 12, the rotary shaft 5
Auxiliary @17 is installed at the rear upper part of the
! 1117 is decelerated by a gear reducer or the like in the gear box 2, and is capable of forward rotation in the traveling direction via a chain in a chain case 18 installed on the side. Further, the above-mentioned auxiliary shaft 17 is installed in parallel to 〇-criteria@5 and extends within the range of the plowing width. A claw attachment part 19 is fixed by welding or the like, and a crushing claw 21 with a small rotation radius of the claw is inserted into the mounting hole drilled at the tip of the claw attachment part 19 through a bolt/nut 20 or the like. is fixed. The soil crushing claws 21 are shaped like hatchet claws used in normal downcut cultivation. In the above configuration, the center of the auxiliary @ 17 is preferably placed on the contact point Q passing through the rearmost end of the pawl rotation trajectory around the rotary shaft 5. Next, the tilling work of the upcut tilling method using the tilling/soil crushing device configured as described above will be explained. First, the Ml poop claw 8 is formed into a shape suitable for up-cut plowing, and the rotary shaft 5 to which the I poop claw 8 is fixed is
is closer to the front of the chain case 4, and the space in front of the chain case 4 is large. -1/R (+-1 is plowing depth, R
Deep plowing is possible with a nail rotation radius of 1 or more. ], the tiller claw 8 plows the tilled soil/υbottom f':II
J: As the cutting progresses toward the ground surface, the cut soil clod becomes sliced, cracks appear in the soil clod near the ground surface, and while sliding on the smooth rake surface of the horizontal blade part 8b, the rotary shaft 5 and is rotated in the opposite direction U' and thrown backwards. At this time, a part of the cut soil clod is held in the crook of the side blade part 8b and is thrown backwards through the inside of the claw rotation trajectory without leaving the cut soil within the action area of the rotary. Therefore, almost no clod is deposited in front of the rotary shaft 5. In addition, the horizontal blade part 8
When the soil clod thrown by b passes through the outer circumference of the claw rotation trajectory, it is crushed by the soil crushing claw 21 of the auxiliary shaft 17 installed on the rear inside of the shield cover 12 and falls behind the rotary shaft 5. Therefore, clods of earth that increase running resistance and traction resistance are not accumulated in front of the chain case 4 and in front of the rotary shaft 5. Furthermore, even if the soil clods cut and thrown by the tilling claws 8 are large and coarse, the soil clods passing along the outer periphery of the claw rotation trajectory are crushed by the soil crushing claws 21 of the auxiliary shaft 17, so the subsoil of the tillage is coarse, but The topsoil can be tilled finely and ideally. Effects of the Invention 1 As described above in detail based on the embodiments, the tilling/crushing device using the up-cut tilling method of the present invention has a single-shape structure in which the tip side is substantially perpendicular to one side with respect to the vertical blade portion. A lateral force part is formed that is bent into a shape, and the starting end of the lateral blade part is rotated approximately 1.
A tilling claw is located at the intersection of a line inclined about 0 and the radius of rotation of the claw, and has a smooth arc-shaped rake surface on the side blade portion, and the axis of the rotary shaft is located near the ground surface. It is configured so that it rotates downward from the rotary shield cover, and an auxiliary g/I axis equipped with a soil crushing claw is installed at the rear and upper part of the rotary shaft inside the rotary shield cover. It is possible to reduce tillage energy without having to re-dig the 11Il soil, allowing deeper tillage. In addition, since the soil clods formed by the 451 pooping claws are crushed by the soil crushing claws on the auxiliary shaft, it is possible to crush the soil with a single effort of plowing, which greatly reduces the number of work hours. be able to.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a schematic configuration diagram of the initial plowing and soil crushing device suitable for upcut tillage according to the present invention, Fig. 2 is a side view showing the shape of the tilling claws according to the present invention, and Fig. 2 is a sectional view taken along line II-II, and FIG. 4 is a sectional view taken along line III-III shown in FIG. 1... Tillage/soil crushing equipment, 2... A! Hiki 7 box, 3...input shaft, 4...chain case, 5...
Rotary shaft, 6... Claw attachment part, 1... Bolt/nut, 3... Tilling claw, 8a... Vertical blade part, 8b...
Side blade part, 8c, 8d...blade edge, 8e...starting end,
8f...Mounting hole, 9...Coding, 10...
Soil adhesion prevention plate, 11... rotary cover, 12...
Shield cover, 13...Side cover, 14...
Front part, 15...Apron, 16...Subside cover, 17...Auxiliary shaft, 18...Dienkusu, 19...Claw mounting part, 20...Pol 1-nut,
21...Claw for crushing soil.

Claims (1)

[Claims] The axis of the rotary shaft rotates downward from near the ground surface, and the tip is almost perpendicular to one side, facing the vertical blade part.
A horizontal blade part bent in a letter shape is formed, and the starting end of the horizontal blade part is inclined by α degree in the rotation direction from a straight line passing through the rotary axis and the tilling claw attachment hole, and the intersection point with the claw rotation radius. In a tillage device for up-cut use, which is equipped with a tilling claw having a smooth arc-shaped rake surface on the horizontal blade portion, the claw is located above the rear of the rotary shaft and has a tilling claw centered on the rotary shaft. An auxiliary shaft capable of forward rotation is installed on the tangent line passing through the rearmost end of the rotation locus, and a pawl mounting portion that maintains a predetermined interval in the lateral and circumferential directions is fixed to the auxiliary shaft, and the pawl of the auxiliary shaft is A lorry tillage and soil crushing device using an up-cut tillage method, characterized in that a soil crushing claw with a small rotation radius is attached to the mounting part.