JP2001112303A - Tillage working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tillage working machine capable of crushing not only a plow layer but also a hard pan layer, improving water and air permeabilities and activating even a subsoil layer. SOLUTION: This tillage working machine comprises a subsoiler 30 for crushing the subsoil layer provided at the rear in the forward direction of a tractor 10 and a rotary tillage machine 40 for crushing the subsoil crushed with the subsoiler 30 and leveling the land installed at the rear in the working forward direction of the subsoiler 30. Thereby, a subsoil part below the surface soil of a field can be mellowed with the subsoiler 30 to improve air and water permeabilities. A part of the subsoil layer can be lifted to the surface by the subsoiler 30 and crushed with the rotary tillage machine 40. As a result, the working trace is leveled to effectively tend the field.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilling implement mounted on a tractor, and more particularly, to a tilling implement capable of crushing soil on a field surface and digging up a subsoil on a surface of the field and inverting it. .

[0002]

2. Description of the Related Art A rotary tilling machine is one of the most widely used agricultural cultivating machines in tilling work. The rotary tilling machine has a plurality of tilling blades (tilling claws) in a plurality of circumferential directions. They are arranged evenly and attached to a multi-row tilling shaft. The tilling shaft is driven via the PTO shaft of the tractor to rotate the tilling blade. For this reason, the tilling depth depends largely on the turning radius of the tilling blade, and is 10 cm to 15 c.
m.

[0003]

In such a rotary tilling machine, air (oxygen) can be taken into the cultivated soil on the surface of the field by stirring the cultivated soil.
In other words, a so-called single-grain structure was formed, which sometimes hindered permeation and drainage. In addition, when the rotary tilling work machine is used for a long period of time, the part hit by the tilling nail becomes hard and a so-called hard bed layer (plow bed layer) is formed, which impedes the water permeability between the tilled soil and the subsoil. There was a problem. For this reason, the rotary tilling machine is not suitable for burying the remaining grain culm on the surface of the field after harvesting deep in the soil. There was also.

[0004] In order to solve the above-mentioned problems, the present invention improves the water permeability and air permeability by crushing not only the cultivated soil but also the hard bed layer, and furthermore, the subsoil layer is improved. It is an object of the present invention to provide a tilling work machine that can be activated.

[0005]

Accordingly, a culvert-forming work machine according to the present invention is a tilling work machine mounted on and pulled by a tractor, and crushes one or a plurality of subsoils in a working width direction. It is provided with a subsoil crusher and a rotary cultivator that is provided at the rear of the subsoil crusher in the work traveling direction, crushes the subsoil crusher and lifts the subsoil to level the soil and level the soil.

For this purpose, a slit is formed in a subsoil portion below the soil cultivation layer by a subsoil crusher to improve air permeability and water permeability, and a part of the subsoil layer is lifted to the surface to crush the soil. This makes it possible to level the work trace by the crushing claws. Further, since the frame constituting the rotary cultivator is an auto hitch frame, it can be easily mounted on the hitch mechanism of the tractor. Here, the hitch mechanism includes a three-point link, a four-point link hitch, or a PTO joint mechanism that can be directly mounted on the PTO shaft of the tractor. Further, the subsoil crusher is characterized in that it is attached to the lower end position left and right of the auto hitch frame and near a lower link hitch pin constituting a hitch mechanism of the tractor. The attachment / detachment work can be easily performed.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 10 denotes a tractor, and a sub-soiler 30 as a crushing claw, a rotary tiller 40, and the like are provided in a link mechanism (three-point link hitch mechanism) including an upper link 11 and a lower link 12 of the tractor. The tilling work machine is equipped. The tractor 10 is used by being mounted with a tillage working machine by an upper link 11 and a lower link 12 as three-point links, and a lift rod 13
And the tilling work machine can be raised and lowered in the vertical direction via the lift arm 14.

The auto hitch frame 20 is supported by the ends of the upper link 11 and the lower link 12,
An automatic hitch coupler 21 is provided. A hitch portion 23A of a mast 23 for hitting an end of the upper link 11 is attached to an upper end portion of the auto hitch frame 20, and a hitch seat 27A is attached to a rear extension of the hitch portion 23A. I have. On the other hand, at both lower ends of the auto hitch frame 20, the lower link 12 is attached to the lower frame 23B via the hitch pin 22, and a hitch pin seat 27B is attached to the rear extension of the lower frame 23B. Further, lower frames 23B are provided at both lower ends of the auto hitch frame 20.
Subsoiler holding pocket 2 between the hitch pin seat 27B and
4 is attached. The hitch pin 22 may be configured to be detachable by a cross shaft type automatic hitch mechanism.

The subsoiler 30 crushes the subsoil,
On the entire surface of the subsoiler 30, a portion near the upper end is given a twist to give a soil repellent function. The subsoiler 30 has an upper end inserted into the subsoiler holding pocket 24, and is fixed to the subsoiler holding pocket 24 by a fixing pin 25 and a bolt 26 and the like, and is attached. A chisel 32 is attached to a lower end position of the beam 31 of the subsoiler 30. The chisel 32 has not only a subsoil crushing function but also a function of supplying air to the subsoil portion. Therefore, along with the subsoil crushing operation, the soil repellent plate 32 is formed along the curve of the beam 31 so that the subsoil can be raised to the surface and the soil layer can be renewed.
A is attached. The soil-repellent plate 32A is made of a high-molecular polyethylene resin having a low friction with the soil and a high abrasion resistance.

The rotary tiller 40 has a pair of lower frames 41 in the tillage width direction.
An upper frame 42 is provided above and between them. That is, a pair of lower frame 41 and upper frame 42
Are arranged in a substantially triangular shape when viewed from the front in the traveling direction.
Also, a pair of lower frame 41 and upper frame 4
2 is attached to the hitch pin seats 27A and 27B of the auto hitch frame 20 by pins 41A and 42A, respectively.

A plurality of tilling blades 43 are attached to the tilling shaft 42 at equal intervals in the circumferential direction, and are arranged in a plurality of rows along the working width direction. The tilling shaft 42 is supported by a gate-shaped frame (not shown) when viewed from the front in the traveling direction. The cover 44 covers the upper part of the tilling blade 43 so as to finely crush the subsoil inverted by the subsoiler 30, and a rear cover 45 is provided behind the cover 44.
Is attached. The lower end of the rear cover 45 is in contact with the surface of the field, and the finely ground crushed soil is leveled. The rear cover 45 has a handle 46
When the handle 46A is rotated, the fulcrum arm 46B rotates about the fulcrum 46C, and the grounding rod 46D is rotated.
Thereby, the grounding posture of the rear cover 45 can be changed. The spline shaft 50 connected to a transmission case (not shown) is connected to the PTO shaft 14 of the tractor 10 via a universal joint shaft 60, and the rotation of the PTO shaft is controlled by a chain 47 in the chain case.
Is transmitted to the tilling shaft 42 via the

[0012]

As is apparent from the above description, according to the present invention, the subsoil crushing operation and the crushing and tilling and tilling operation can be performed simultaneously and continuously. The soil layer is also crushed to improve water permeability and air permeability, and the subsoil layer can be activated. As a result, the soil structure of the field is improved, the locus of subsoil crushing is eliminated, and a field suitable for sowing and transplanting can be easily formed. Also,
Subsoil and soil are mixed to prevent or reduce continuous cropping failure. Furthermore, since it is possible to cope with drought by preventing moisture damage due to hard disk crushing, the influence of harvest due to fluctuations in weather conditions is reduced, which is advantageous.

[Brief description of the drawings]

FIG. 1 is a side view of a tilling machine according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Tractor 11 Upper link 12 Lower link 13 Lift rod 14 Lift arm 20 Auto hitch frame 21 Auto hitch coupler 22 Sprocket wheel 24 Subsoiler holding pocket 30 Subsoiler 32 Chisel 40 Rotary cultivator 42 Tilling shaft 43 Tilling blade

Claims (3)

[Claims] 1. A tilling work machine mounted on a tractor, which is provided at a rear side in a traveling direction of the tractor and crushes a subsoil arranged along a working width direction at a front position of the working machine. A tillage machine comprising: a crusher; and a rotary cultivator provided rearward in a working direction of the subsoil crusher and crushing the subsoil crushed by the subsoil crusher to cultivate the ground. 2. A tilling machine according to claim 1, wherein a frame constituting said rotary cultivator is an automatic hitch frame. 3. The sub-soil crusher is mounted on the right and left lower end positions of the auto hitch frame and near a hitch pin of a lower link constituting a hitch mechanism of the tractor. The tillage machine described.