JPS6098902A - Double-axis type rotary plough - 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 (a) Industrial Application Field The present invention is a rotary tiller that is attached to the rear of an agricultural tractor, and is used for rough tilling and crushing soil when planting soybeans, wheat, etc. as subsequent crops in paddy fields. This invention relates to a two-shaft rotary tiller that can perform both operations at once.

(b) Prior art A device called a two-shaft rotary tiller has been known for a long time, but the conventional two-shaft rotary tiller is not a device used for subsequent cultivation of paddy fields, but rather has a rear tilling claw shaft that is used for deep cultivation. The purpose was to place the paddy fields in different locations and to perform deep plowing to improve the soil of paddy fields.

For this reason, the entire biaxial rotary tiller was built to be strong enough to enable deep plowing, and was constructed as a specialized machine for soil improvement. Because of this, it was not possible to detach and detach one side and use only the other for tilling, and it was necessary to separately purchase a two-shaft rotary tiller for soil improvement in addition to a rotary tiller for rough tilling. It is.

(c) Purpose of the Invention The biaxial rotary tillage device of the present invention is not intended for deep plowing for soil improvement, but for planting soybeans and wheat as subsequent crops in paddy fields. Instead of passing the tillage device twice, roughing it up the first time, and crushing it the second time, it is now possible to rough up and crush the soil in just one pass, cutting the work time and effort in half. In addition, when this rotary tiller is used for cultivating paddy fields for rice cultivation, the tiller claw shaft for crushing soil is unnecessary, so it can be removed and used only as a rough tiller. .

With this configuration, the rice field after-effects will rise violently in one step,
It can be used both as a two-wheeled rotary tiller that can crush soil, and as a rotary tiller that can be used for both rough raising and sub-sowing of paddy fields.
This eliminates the need for double purchases.

(d) Structure of the Invention The purpose of the present invention is as described above, and the detailed structure of the present invention will be explained based on the structure of the embodiment shown in the attached drawings.

FIG. 1 is a side view of a two-wheeled rotary tiller.

FIG. 2 is a side view of the case where the tilling device for crushing soil is removed and used only as a rough tilling device. FIG. 3 is a front view of 10 parts of the rear cover. FIG. 4 and FIG. 5 are perspective views of the crushing earth shaft cover with and without it attached.

Referring to FIGS. 1 and 2, the overall configuration will be explained.

Power is transmitted via a universal joint from a PTO shaft protruding from the rear of the agricultural tractor to an input shaft 22 of a rotary gear box 21 located in the center of the rotary tiller in the left-right direction. rotary gear box 2
A chain case 3 extends below 1 and drives a rough tilling claw shaft 2 of a center drive. Main beam 26 to the left and right from the side of the rotary gear box 21.
A power transmission shaft 27 is provided within the left main beam 26 and transmits power to an output gear box 32 provided on the left side of the main beam 26. That is, an output gear box 32 is attached to the left end of the left main beam 26 to output power to the tilling claw shaft 8 for crushing soil. A mast stay 28 is fixed to the front part of a mounting flange 37 fixed to the middle part of the main beams 26, 26, and reinforces the top link mast 20 protruding from the side surface of the rotary gear box 21. A pin 38 that fixes the lower end of the mast stay 28 serves as a lower link pivot pin of the agricultural tractor. Further, a top link is pivotally connected to a bottle hole 39 at the apex of the top link mast 20. Depth control pars 23 are protruded from the rear portions of the left and right flanges 37, and a depth wheel 30 is supported at the rear ends of these through vertical rods 24. The vertical adjustment of the depth control par 23 is performed using the tilling depth il 1 section handle 10.

An arcuate rough tilling cover 25 is installed between the side plates 4 on the inside of the left output gear box 32 and the right side frame. The crushed soil tilling cover 11 is fixed to the rear end of the rough tilling cover 25 with a pin 12, and the rear end of the crushed soil tilling cover 11 is fixed to the crushing soil shaft cover 5 with a pin 40.

Also, the rear cover 1 is attached to the pin 40 of the crushing shaft cover 5 at the same time.
0 is pivotally supported, and when the rear cover 10 is urged downward by the spring of the /'%anger rod 17, it rotates up and down according to the unevenness of the field. A rubber sag 13 is fixed on the lower surface of the rear cover 10 to prevent soil from adhering to the rear cover 10 and to reduce impact.

Also, from the rear cover 10 toward the rotation gap of the crushing claw 7,
A scraping plate 41 protrudes and scrapes or cuts clogged straw and clods.

In addition, rake rods 9 are installed from the bottom surface of the crushed soil tillage cover 11 to stop large soil clods (several 10 of them are arranged. By doing so, large soil clods that have not been crushed are sorted out and quickly dropped to the soil surface, and then finely divided. The grains fall and form the sowing beds for soybeans and wheat.Similarly, the rake stops the straw waste and rice plants and they fall first, so they form a layer from the bottom in order, until the top layer is formed. This forms a seed bed of fine soil.

In addition, the large soil mass at the bottom improves air circulation, promotes the proliferation of microorganisms, and promotes the rotting of straw waste and rice plants.

The crushing shaft cover 5 is hooked to a pin 6 at a notch 5a, and the notch 5a and the hook are connected to the pin 6 as a stop/flange for controlling the rotation of the tilling device for crushing soil. Further, the rotation upper limit stopper is constituted by a bolt 34.

A bearing case is fixedly installed on the right-hand crushed soil tilling cover 5, and an enterer gear box 33 is fixedly installed on the left-hand crushed soil shaft cover, and a tilling claw shaft 8 for crushing soil is installed across both of them. A soil crushing claw 7 configured as a tomoe nail shaft or the like is fixed to the tilling claw shaft 8 for crushing soil. It's rotating. A universal joint 31 is interposed between the output gear box 32 and the input gearbox 33.

A top end of a vertical adjustment handle 14 of a tilling device for crushing soil is pivotally supported on a pivot support 44 on top of the crushing soil tilling cover 11. By turning this vertical adjustment handle 14, only the tilling device for crushing soil can be moved up and down without changing the plowing depth of the rough tilling device. The vertical adjustment handle 14 is pivotally supported between the depth control pars 23 and 23 by a connecting pin 15.
This coupling pin 15 can be pulled out and removed.

18 and 19 are sensor arms and sensor links used when performing auto depth control.

FIG. 2 shows the state in which the tilling device for crushing soil is removed, and the tilling device for crushing soil includes a crushing soil shaft cover 5, a crushing soil claw shaft 8, a crushing soil claw 7, a crushing soil tilling cover 11, a vertical adjustment handle 14, a bearing case 43, The input gearbox 33, universal joint 31, etc. are removed as one unit.

This removal is performed by connecting pin 15 of vertical adjustment handle 14.
It can be removed by removing the front and rear pins 12 and 4o of the crushed soil tillage cover 11.

Even after removal, the output gear box 32 remains attached.

Then, the rear cover 10 moves forward and is pivoted to the rear end of the rough tilling cover 25 by a pin 12, and the hanger rod rotates forward to change the negative position and bias downward.

As shown in FIGS. 4 and 5, when the crushing shaft cover 5 is used for rough lifting, another crushing shaft cover 5 may be attached.
The tillage device for crushing soil may be removed and used.

(e) Function of the invention In the case of rice cultivation in paddy fields, the present invention is applicable to rough raising and plowing,
In both cases, the tilling device for crushing soil is unnecessary because the work is done only with the rough tilling device, so it is removed.When raising soybeans or wheat as a follow-up crop to paddy fields, rough tilling and crushing can be done in one step, and the tilling device for crushing soil can be done in one step. This soil can be used as a two-shaft rotary tiller, as the soil is layered with large soil clods, rice straw waste, medium soil clods, and small soil clods.

When removing the tillage device for crushing soil, pull out pin 12 and
The notch 5a of the crushing shaft cover 5 is removed from the pin 6, and at the same time, the vertical adjustment handle 14 is removed using the coupling pin 15, the auto depth control feedback 19 is removed, and the hanger rod 17 is removed. Thereafter, the rear cover 10 is roughly raised using the pin 12 and replaced with the tilling cover 25.

The installation of the tiller for crushing soil is carried out in the reverse order.

(F) Effects of the Invention (The present invention has a tilling claw shaft for rough tilling disposed at the front part in a direction perpendicular to the direction of movement of the rotary tillage device, and parallel to this tilling claw shaft at the rear part for crushing soil. A tilling device for rough tilling is arranged with a tilling claw shaft for use in rough tilling, and a tilling device for crushing soil consisting of a tilling claw shaft for crushing soil can be attached and detached from the tilling device for rough tilling. Since it has been made tillable, in the case of paddy rice cultivation, only a tillage device is needed for rough tilling and puddling, and when growing soybeans and wheat as subsequent crops, it is possible to till till and crush the soil in one step. This eliminates the need to purchase two copies of one machine, reducing waste.

Furthermore, since the rear cover and the hanger rod can be used in either situation, it also contributes to a reduction in parts costs.

[Brief explanation of the drawing]

Figure 1 is a side view of a two-wheeled rotary tiller. FIG. 2 is a side view when the tilling device for crushing soil is removed and used only as a rough tilling device. FIG. 3 is a front view of the 10 parts of the carrier cover. FIG. 4 and FIG. 5 are perspective views of the crushing earth shaft cover with and without it attached, respectively.

Claims (1)

[Claims] A rough tilling claw shaft is arranged at the front in a direction perpendicular to the direction of movement of the rotary tiller, and a tilling claw shaft for crushing soil is arranged parallel to this at the rear. Getting up 1
A two-shaft rotary tilling device characterized in that a tilling device for crushing soil consisting of a tilling claw shaft for crushing soil is detachably attached to the tilling device, so that tillage can be carried out using only the rough tilling device.