JPS6031444Y2 - Ridge forming equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ridge forming device, and in ridge forming work,
The purpose is to reduce the amount of soil remaining in the ditch.

When performing ridge forming work, it is necessary to move the soil to the center at the same time as tilling.For this purpose, a rotary device with inward-facing claws such as plow claws and earth embankment claws embedded in the claw shaft is used, and the soil is moved to the center at the same time as tilling. A ridge molded plate is installed.

However, with this kind of thing that simply has inward claws,
The soil feeding action was not sufficient, and soil spilled from both ends of the ridge forming plate, making it impossible to form clean grooves.

That is, when forming a ridge 2 next to a ridge 1 as shown in FIG. 1, since there is a limit to the soil feeding action of the rotary tiller 3 itself, soil spills out from both ends of the ridge forming plate 4 and the ridge 1 There was a drawback that soil 5 remained on the streaks during the process.

The present invention solves these conventional problems, and its features are that a large number of inwardly directed claws are planted on the claw shaft to constitute a rotary tiller, and that the rotary tiller is In the ridge forming device, in which a ridge forming plate with approximately the same width as the ridge forming plate is arranged behind the ridge forming plate, shatter prevention disks with a smaller diameter than the rotation locus of the inward claw are provided at both ends of the claw shaft, and the inner side of each disk is An inclined guide section is provided to send the soil toward the center as the disk rotates, and both ends of the ridge molding plate are brought close to each other in the front and rear of each disk.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment.
The figure and FIG. 3 illustrate an example using a center drive type rotary device.

In the figure, 10 is a rotary body, which includes an input gear case 11, a transmission case 12, etc. as a structure, and is attached to a tractor via a three-point linkage mechanism.

Reference numeral 13 denotes a rotary tiller, which includes a pawl shaft 14 horizontally suspended at the lower end of the transmission case 12, and a large number of inward pawls 1 implanted therein.
5.

The claw shaft 14 has a cylindrical shape, and is fastened in the axial direction by a tightening bolt 17 via a fastener 16, as shown in FIGS. 4 and 5. A joining flange 18 is provided at the portion.

Reference numeral 19 represents a front cover that covers the rotary tiller 13, and reference numeral 20 represents a rear cover pivotally attached to the rear end of the front cover 19 so as to be vertically movable.

Reference numeral 21 denotes a gauge wheel support frame, which is pivotally attached to the rotary machine frame 10 and can be vertically adjusted by a plow adjustment mechanism 22.

Reference numeral 23 denotes a ridge forming plate, which includes a molded part 24 and a dori part 25 projecting from the front end to both sides, and the ridge forming plate 23 is attached to a horizontal member 27 via a support member 26. be done.

The horizontal member 27 is attached to the gauge wheel support frame 21 via the mounting member 28.
It is removably attached to the rear end of the body with a mounting pin 29.

30 is a disk for preventing scattering, and it is shown in FIGS. 4 and 5.
As shown in the figure, it is detachably attached to the joint flanges 18 at both ends of the claw shaft 14 with bolts 31.

The disk 30 has a disk shape with a smaller diameter than the rotation locus 32 of the inward pawl 15, and is located close to the outer end of each ridge portion 26 of the ridge forming plate 23 in the front and back. An end pawl 34 is attached via a pawl mounting bracket 33.

The claw mounting bracket 33 has a claw insertion portion 35 and a fitting hole 36 as shown in FIGS. 7 and 8, and the end claw 34 is inserted into the claw insertion portion 35 of the claw mounting bracket 33. ,
It is fastened to the disk 30 by a mounting bolt 37 inserted from the fitting hole 36 side and a nut 38 screwed into the bolt, and the head 37a of the mounting bolt 37 is fitted into the fitting hole 36.

Note that the end claws 34 are of an inward type, and their rotation locus is the same as that of the other inward claws 15, and constitutes an inclined guide portion that sends soil toward the center as the disk 30 rotates.

Next, the action will be explained.

When forming ridges, the field is plowed in advance to make it soft.

The working state at this time is shown in Fig. 2. When the claw shaft 14 of the rotary tiller 13 is driven in the direction of the arrow a by the power from the tractor, the soil is tilled by the inward claws 15 installed therein and at the same time. The plowed soil is moved toward the center, and the tillage marks are ridge-formed using the ridge-forming plate 23 to form a predetermined ridge 39.

In this case, disks 30 are attached to the outer ends of the claw shafts 14, and are close to both ends of the ridge forming plate 23, so the tilled soil is scattered outward by the disks 30. This prevents soil from spilling to the groove side, which is completely captured by each of the ridge portions 25 of the ridge forming plate 23 and guided to the forming portion 24 side. can be made very small.

In addition, since the end pawl 34 is attached to the disc 30, the soil at the edge of the disc 30 can be sent to the center.
The overall plowing width of the rotary plowing section 13 becomes large.

Note that the resistance caused by the disk 30 is within a range that hardly poses a problem because the field has been plowed and the diameter is smaller than the rotation locus of the inward claws 15.

The end pawl 34 is not necessarily required, and the attachment thereof is not limited to the above embodiment.

For example, as shown in FIGS. 8 to 10, one end of a strip-shaped strip is bent into a shape to form an end pawl 34, and this is attached to the disk 30 with two bolts 40 and nuts 41. You can also install it.

Moreover, FIGS. 11 and 12 show an example in which the end claw 34 is not attached.

In this case, inclined portions 42 as inclined guide portions are formed radially on the disk 30 by press molding or the like, and the inclined portions 42 are used to send soil inward.

In the present invention, discs for preventing scattering are provided at both ends of the claw shaft, and each disc is placed close to both ends of the ridge molding plate in the front and back, so that the protrusion of soil toward the groove side can be reduced. Since the inclined guide part is provided inside the disk, the soil on the edge of the disk can be efficiently sent to the center, allowing for more beautiful ridge forming work.

Furthermore, since the diameter of the disc is smaller than the rotation locus of the inward claw, there is almost no resistance from the disc.
This has the advantage of not causing any trouble.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a conventional example, Fig. 2 is a side view showing the first embodiment of the present invention, Fig. 3 is a schematic plan view of the same main part, Fig. 4
The figure is a broken side view of the main part, Figure 5 is a view taken along the line A-A in Figure 4, Figure 6 is an enlarged side view of the main part, and Figure 7 is B-B in Figure 6. 8 is a side view showing the second embodiment of the present invention, FIG. 9 is a rear view of the main parts, FIG. 10 is an enlarged view taken along the line CC in FIG. 9, and FIG. The figure is a side view showing a third embodiment of the present invention, and FIG. 12 is an enlarged view taken along the line D--D in FIG. 11. 10...Rotary body, 13...Rotary plowing section, 14...Claw shaft, 15...
Inward claw, 18...Joining flange, 23...
...Round forming plate, 30... Disc, 34...
...End claw.

Claims (1)

[Scope of utility model registration request] In a ridge forming device in which a rotary tiller is constructed by planting a large number of inward claws on a claw shaft, and a ridge forming plate having approximately the same width as the rotary tiller is arranged behind the rotary tiller, the claw shaft is A scattering prevention disk with a diameter smaller than the rotation locus of the inward claw is provided at each end, and an inclined guide portion is provided inside each disk to send soil toward the center as the disk rotates, and a ridge forming plate is provided for each disk. A ridge forming device characterized in that both ends of the ridge are located close to each other in the front and back.