JP2010022202A - Pawl of tilling rotary for remaining tillage treatments - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide pawls for remaining tillage treatments which can till soil just under a support holding a mission for driving a pawl shaft or a chain case and a pawl shaft, and are hardly twined with grasses and straws, in a tilling rotary comprising a plurality of tilling pawls attached to the tilling shaft. <P>SOLUTION: In a riding or walking type rotary tiller installed with a tilling rotary having a plurality of tilling pawls attached to a tilling pawl shaft, pawls made by attaching projections having blades for tearing up soil to a member which is attached to a pawl shaft-having drive case and has an arc obeying the tilling rotary, dug into soil, having a smaller diameter than that of the rotation peripheral circle of tilling pawl and centering the tilling pawl shaft are mounted between the drive case and a plurality of the tilling pawls disposed most close to the drive case having the pawl shaft and bent toward the drive case. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a structure and method for preventing weed wrapping and remaining tilling treatment of a riding rotary equipped with a tilling rotary capable of plowing and weeding a field soil and a walking rotary tiller.

Conventionally, the rotary rotary has been widely used for plowing and sowing work, weeding work, cultivating work, and management work for ridges.For example, in plowing work, a plurality of tilling claws attached to a tilling shaft are used. By rotating, the field soil is crushed and the tillage rotary sinks and can be cultivated. However, the root of the tillage claw shaft protruding left and right from the drive case is a cause of expansion of the remaining tillage, a decrease in output, oil leakage, and the like due to the weeds penetrated by the plurality of tillage claws. In addition, in order to crush the soil directly under the drive case, the tillage rotary with a device that mechanically engages the tillage claw
JP 2003-199403 A Special devices such as rotating claws, fixed claws, and resistance rods have been devised. JP2006-129771A2006.5.25 JP2004-135485A2004.5.13 JP 2003-274703 A JP 2003-219701 A JP2000-41402

However, in fields where weeds are hard and hard, fixed claws, resistance rods, etc. that are supposed to break up residual tillage cannot enter the field. Overgrown weeds do not get tangled up. Even if it can be rushed, it will be difficult to work, such as the shallowly entwined grass fences tangling the soil and forming a push groove. Or, when there is no residual tillage processing function, the drive case comes into contact with the remaining tillage, so that no further tillage can be performed. In particular, when it is necessary to plow the same path, such as between the furrows, there is a problem that weeding, full plowing, and deep plowing work cannot be performed satisfactorily due to residual tillage that cannot be crushed indefinitely.

Therefore, in riding and walking type rotary tillers equipped with a tilling rotary with a plurality of tilling claws attached to the tilling claw shaft, it is mounted on either the left or right side of the traveling direction of the drive case that holds the claw shaft. In order to do this, it has a blade that cuts the soil in an arch-shaped member that is smaller than the diameter of the tilling claw rotation outer circumference circle and that has an arc centered on the center of the cultivation claw rotation outer circumference circle, which is fixed at any place of the drive case. The protrusion was attached from the position directly below the claw shaft toward the direction directly below the drive case.

In addition, a configuration of a tilling claw shaft that arranges two or more tilling claws that are closest to the left and / or right side of the drive case and bent toward the driving case, and the plurality of tilling claws and the drive case Place the arch-shaped member with the arc described in the previous section in the gap, take the gap so that it does not touch multiple tilling claws and make it the distance, and the length of the projection with the blade that tears the soil is the arc on both sides When attaching an arch-shaped member that has a circular arc on one side that is longer than the length of the tilling nail bent toward the drive case and shorter than the length to the center line of the drive case The drive case is longer than the center line of the drive case.

The shape of the arch-shaped member with the arc described in the previous section and the mounting position of the protrusions are tilted slightly forward from the horizontal in the state of being placed on the field in the case of a walking rotary tiller with a tilling rotary attached In the case of riding and walking type rotary tillers with a tillage rotary attached to the rear, the installation tilts slightly forward from the horizontal when deeply plowed on the field, and rests on the field. In this state, the protrusion with the blade that inclines forward and tears up the soil has a blade in the direction of travel of the drive case when the plurality of tilling claws are rotating in the forward direction, and the drive case in the case of reverse rotation. Both the traveling direction and the backward direction have a shape having a blade.

In the relationship between the shape of the arcuate member having the arc described in the preceding paragraph and the attachment position of the protrusion, when using as a main purpose to prevent the winding of the grass, other than the preceding item on the arc of the arcuate member having the arc It can also be used by attaching a protrusion having a blade that cuts the soil at a position.

The present invention can not only handle the residual tillage without adding a complicated mechanical structure to the tillage rotary during the rotary tillage, but also wind the weeds by the close installation of the fixed tillage processing claws and a plurality of rotating tillage claws. No residual tillage treatment is possible and the structure of the tillage rotary can be simplified. When the present invention is used, it is necessary to change the shape and length of the protrusion according to various conditions such as the field conditions, the horsepower of the rotary tiller, or the model. FIG. 9 is a part of the prototype, but it is effective not to unify the shape as a product but to replace it by attaching and detaching the protrusion.

Also, in terms of usage, weeds that grow in mid-plowing weeds do not wrap around the drive case of the nail shaft during plowing compared to rotary plows that do not have residual plows, so weed removal is not necessary The interruption of tillage work is reduced. Since the work can be performed without remaining tillage, the tillage width becomes wide and the remaining tillage is eliminated. The deep plowing is possible when the drive case sinks deeply. In addition, the residual tillage claw fixed to the drive case resists up / down and up / down movement in the soil, and vibration due to ups and downs is small, which is effective in suppressing the dashing phenomenon, stabilizing the operating handle and reducing the operator's workload. There is an effect that it can be further reduced and good tillage work can be performed.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG.1 and FIG.2 is a front view of the cultivation rotary of the front rotary tiller 1a which concerns on this invention, and shows the shape of the arch-shaped member with a circular arc, and the attachment position of protrusion from the front. FIG. 1 shows an arch having an arc installed in a gap between two or more tilling claws 3, 4 which are closest to the left and right sides of the drive case 1 and the drive case 1 and are bent toward the drive case 1. 2 shows the shape of the mold member 5 and the mounting position and direction of the protrusion 6. FIG. 2 shows the arrangement of two or more tilling claws 3, 4 that are closest to one of the drive cases 1 and bent toward the drive case 1. The shape of the arch-shaped member 5 having a circular arc installed in the gap and the attachment position of the protrusion 6 are shown.

FIG. 3 is a side view of the tillage rotary of the front rotary tiller 1a according to the present invention, and shows the shape of the arcuate member 5 having an arc attached to the drive case 1 and the attachment position of the protrusion 6 from the side. The protrusion 6 is installed on the vertical line i of the arch-shaped member 5 tillage claw axis K having an arc in which the front rotary tiller 1a according to the present invention is placed on the soil surface T1. The tip of the projection is close to the tilling claw rotation outer circumference circle m, and is parallel to the soil surface T1 or has an angle that slightly projects.

FIG. 4 is a side view of the tillage rotary of the front rotary tiller 1a according to the present invention, and shows the shape of the arcuate member 5 having an arc and the attachment position of the protrusion 6 from the side. When the front rotary tiller 1a according to the present invention sinks from the soil surface T1 to the soil surface T2, the perpendicular line i of the tillage claw shaft 2 of the arcuate member 5 having an arc enters the rear at an angle r1. . Since the front rotary cultivator 1a is light in weight and easily floats, the operation is stabilized when the thrust angle r1 increases. However, if it becomes too large, it may become running resistance and become unstable.

FIG. 5 is a plan view of the projection 6 of the arcuate member 5 having an arc and the tilling claw 4 bent toward the drive case 1 according to the present invention, and moves in parallel while approaching the arcuate member 5 having an arc. This shows a mechanism in which weed B that is entangled from the tilling claw 4 is excluded. In FIG. 5-a, the projection 6 of the arcuate member 5 having an arc is moving in the traveling direction f along the trajectory L2 while integrally cutting the soil T2 on the trajectory 12 of the tilling claw 4 that has passed. . Part of the weed e that gets entangled when reaching FIG. 5B comes into contact with the projection 6 and is pulled away from the tilling claw 4 for use. Then, the weed e that is entangled in FIG. 5C is separated from the tilling claw 4 by the protrusion 6. The soil torn by the protrusions 6 is finely crushed by the tilling claws 3 and 4 that enter and pass through one after another.

6a and 6b are side views showing that the projection 6 of the arcuate member 5 having an arc according to the present invention changes the attachment of the blade depending on the rotation direction of the tilling claws 3 and 4. FIG. 6A shows a case where the tilling claw is rotating forward F with respect to the traveling direction f, and the blade c that follows the trajectory l1 shown in FIG. 5 and cuts the soil moves in the traveling direction f during the soiling. FIG. 6B shows the case where the tilling claw is reversely rotated R with respect to the traveling direction f, and the weed e is cropped by the tilling claws 3 and 4 passing from the rear. The blade c which cuts the soil is removed by the blade d which cuts the soil, and the blade c which cuts the soil moves in the traveling direction in the soil and separates the remaining tillage from the soil.

7 and 8 are side views showing that the projection angle of the arch-shaped member 5 having an arc according to the present invention varies depending on the holding position of the riding and walking-type rear tillage rotary. In FIG. 7, the rear tillage rotary generally tends to sink, so that the sinking by the protrusion 6 is suppressed by setting the horizontal position of the protrusion 6 as the horizontal position of the protrusion rotary. However, as shown in FIG. 8, since it is necessary to sink immediately at a certain depth from the start of tilling, an angle r2 with respect to the perpendicular i is required when placed on the soil surface T1.

In order to carry out the tilling work by installing the present invention, not only a new attachment but also an arcuate member 5 having an arc or a projection 6 as shown in FIG. 4 is required to be replaced or expanded, but the cost is low. As a result, stable and advanced tillage work can be performed, and the operator's workload can be reduced.

Action

With the above structure, the tilling claw shaft 2 protruding from the drive case 1 is inserted into the soil following the tilling claws 3 and 4 in the gap between the drive case 1 and the tilling claws 3 and 4 that rotate closest to the drive case 1. The weed e is blocked by the arch-shaped member 5 having a circular arc so as not to be drawn into the tilling claws 3 and 4, and then removed by contacting the projection 6 to prevent the following weed e. No longer wraps around the tilling claw shaft 2. Since the weeds are not wound by this process, the weeds and the soil are not firmly fixed to the lower part of the drive case 1, and the drive case 1 can obtain a good tillage depth without being lifted. At the same time, the plurality of tilling claws 3 and 4 rotate around the arcuate member 5 having a circular arc, and the soil is crushed and quickly removed while drawing the weeds e ahead of the traveling direction f. A part of the member 5 and the protrusion 6 can secure a moving space forward and downward, and can move without receiving resistance from the soil. These results minimize residual tillage, further increase deep plowing ability and facilitate deep plowing work.

It is a front view of the tilling rotary of the front rotary tiller 1a which concerns on this invention. It is a side view same as the above. FIG. 6 is a side view showing the tillage rotary mounting angle. It is a side view same as the above. FIG. 3 is a plan view of an arched member 5 having a circular arc, a protrusion 6 and a tilling claw 4. FIG. 4 is a plan view relating to the rotation direction of an arcuate member 5 having a circular arc, a protrusion 6 and a tilling claw 4. It is a side view which shows a protrusion and a tilling rotary attachment angle. It is a side view same as the above. This is a modification of the protrusion 6. It is the front and sectional drawing of a prior art example. It is a side view of a prior art example. It is a side view of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drive case 1a Front rotary cultivator 2 Cultivation claw axis 3 Cultivation claw 4 Cultivation claw 5 Arch-shaped member 6 with a circular arc Projection T1 with cutting edge to cut soil T2 Landing surface m Claw claw rotation outer circumference circle i perpendicular line r1 angle r2 angle l1 tilling claw trajectory l2 tilling claw trajectory L protrusion trajectory e weed c blade cutting through the soil d cutting blade f cutting direction f forward direction F forward rotation R reverse rotation

Claims (4)

The diameter of the rotation claw rotation outer circumference circle that is fixed at any position of the drive case to be mounted on either the left or right side or either one with respect to the traveling direction of the drive case holding the claw shaft, and that is smaller than the diameter of the rotation claw rotation outer circumference circle A arch-shaped member with an arc centered on the center of the ridge, and a protrusion with a blade that cuts the soil is attached from the position directly below the nail axis to the direction directly below the drive case. Residual plow processing claws of riding and walking rotary tillers equipped with tillage rotary with attached tillage claws. Requests for an arrangement of two or more tilling claws shafts that are closest to either the left or right side of the drive case or one of them and bent toward the drive case, and a gap between the plurality of tilling claws and the drive case The arch-shaped member having an arc according to item 1 is disposed, and the distance of a gap that does not contact the plurality of tilling claws is set as the distance, and the length of the protrusion having the blade for cutting the soil is an arch-shaped with arcs on both sides When a member is attached, the drive case is longer than the length of the tilling claw bent toward the drive case and longer than the length of the drive case centerline and with an arcuate member with an arc on one side. The remaining tillage processing nail according to claim 1, wherein the plowing treatment claw is disposed longer than the length of the drive case center line. The shape of the arch-shaped member with the arc described in the previous section and the mounting position of the protrusions are tilted slightly forward from the horizontal in the state of being placed on the field in the case of a walking rotary tiller with a tilling rotary attached In the case of riding and walking type rotary tillers with a tillage rotary attached to the rear, the installation tilts slightly forward from the horizontal when deeply plowed on the field, and rests on the field. In this state, the protrusion with the blade that inclines forward and tears up the soil has a blade in the direction of travel of the drive case when the plurality of tilling claws are rotating in the forward direction, and the drive case in the case of reverse rotation. The residual tillage processing nail according to claim 1 and 2, wherein it has a shape having a blade in both the traveling direction and the backward direction. When the present invention is used mainly for preventing grass wrapping, the mounting position of the arch-shaped member having the arc according to claim 3 and the projection having the blade for cutting the soil is set at a position other than claim 3. The remaining plow processing nail characterized by the objective being obtained also by arrange | positioning.

Images