JPH0528082B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a tillage method using a rotary tiller.

(Prior art) When carrying out tillage work by attaching a rotary tillage device to a tractor, conventionally, the tractor used is of a type that can only be operated by steering the front wheels. When reversing the tilling direction at the end,
The tractor was turning.

(Problems to be Solved by the Invention) However, as described above, when turning at the edge of the field during tilling work, the area where the tilling work is not performed, that is, the headland, is created at the end of the field. There was a big problem that remained.

In addition, recently, plowing work has been carried out by unmanned operation of the tractor by remotely controlling the tractor and tilling equipment from the outside via radio, etc., without an operator on the tractor.In such plowing work, When the tractor is turned at the edge of the field as described above, there is a problem in that it is difficult to control the position of the tractor and the tilling device, making it difficult to perform the tilling work.

An object of the present invention is to provide a tillage method using a rotary tiller that can solve the above problems.

(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized in that a rotary tiller is installed on a tractor capable of club steering operation in which the front and rear wheels are both steered in the same direction. A method of carrying out tilling work in a field using the tilling device, in which the tilling device is mounted so as to be able to be raised and lowered while being offset in the left-right direction, and the tilling device can be freely changed between a working position and a non-working position above the tilling device. , With the tilling device in the working position, the tractor is moved straight forward and backward from one end of the field to the other, thereby performing tilling work with the tilling device, and the tractor and the tilling device are placed in the field. When reaching the other end, set the tilling device to the non-working position, and in this state operate the club steering to drive the tractor diagonally while passing the front and rear wheels through the uncultivated land. , moving the tractor and the tilling device to the adjacent uncultivated land on the side opposite to the offset side of the tilling device with respect to the cultivated land, and after this movement, making the tractor go straight in the longitudinal direction,
Bring the tractor and tillage equipment to the edge of the field,
Thereafter, by repeating the above operations, the uncultivated land in the field is cultivated one after another.

(Function) According to the present invention, at the start of tillage work, the tractor and rotary tillage device are positioned at a corner on one end side of the field, and the tillage device is placed in the working position,
Drive.

In this state, the tractor is moved straight forward toward the other end of the field, and the tilling device performs tilling work.

When the tractor and tillage device reach the other end of the field, the drive of the tillage device is stopped and the tillage device is raised to a non-working position.

In this state, operate the club steering,
By driving the tractor diagonally while passing the front and rear wheels through the uncultivated land, the tractor and tilling device are moved to the adjacent uncultivated land on the opposite side of the offset side of the tilling device relative to the cultivated land. .

After this movement, the tractor is moved straight in the front-rear direction until the tractor and the tilling device reach the edge of the field, and then, by repeating the above operation, the uncultivated land in the field is sequentially tilled by the tilling device. do.

(Example) Hereinafter, the first example of the present invention will be described with reference to FIGS. 1 to 10.
To explain based on the drawings, in FIGS. 1 and 2, reference numeral 1 denotes a two-wheel, four-wheel type tractor, which has a pair of left and right front wheels 2 and a rear wheel 3. The front wheels 2 are rotatably supported around a king pin 5 at both left and right ends of a front axle case 4 suspended on a center axis, and the pair of left and right front wheels 2 are interlocked with a front wheel steering cylinder 7 via a knuckle arm 6 at the upper end of the king pin 5. Therefore, the front wheels 2 can be steered around the king pin 5 by the front wheel side steering cylinder 7. The rear wheels 3 are rotatably supported around a king pin 9 at the outer ends of rear axle cases 8 on both sides of the rear of the tractor 1, and similarly to the front wheels 2, they are supported by the rear wheel side steering cylinder 11 via a knuckle arm 10 to support the king pin. The steering can be operated around 9. The main bodies of the steering cylinders 7 and 11 are supported by the vehicle body of the tractor 1 so as not to be laterally movable, and both left and right ends of the piston rods are connected to the respective knuckle arms 6 and 10. Further, the front wheels 2 are moved in the forward and reverse directions via a power transmission system such as in the front axle case 4, and the rear wheels 3 are moved in the forward and reverse directions via a power transmission system such as in the rear axle case 8. Therefore, the tractor 1 can move forward and backward. A clutch is interposed in each power transmission system, and either two-wheel drive or four-wheel drive can be selected by engaging and disengaging the clutches.

Reference numeral 12 denotes a control device, which includes a handle 13 and a driver's seat 1, which are provided on the tractor 1 and separated from each other in the front and rear.
4, and various other levers (not shown) such as various clutch operating levers, hydraulic control levers for raising and lowering the working machine, and speed change levers are also provided.

The handle 13 is the steering cylinder 7, 11
This system controls the front and rear wheels 2 and 3 to perform power steering operation.
The front and rear wheels 2,
It is possible to perform a club steering operation in which all three wheels are steered in the same direction.

Reference numeral 15 denotes a rotary tilling device, which is attached to the rear of the tractor 1 via a coupling device 16 such as a two-point link so as to be able to be raised and lowered, and the tilling device 15 is largely offset in the left-right direction (to the right in the example). . The tilling device 15 is a hydraulic device 17 for lifting and lowering the working machine.
The tilling device 1 is raised and lowered by the tiller.
5 can be freely changed between a working position shown by a solid line in FIG. 2 and a non-working position which is a position above the working position, as shown by a phantom line in FIG.

The input shaft 18 of the tilling device 15 is interlocked and connected to the PTO shaft 19 at the rear of the tractor 1 via a universal joint shaft 20, but the tilling section 21 of the tilling device 15
It is preferable that it is capable of forward and reverse rotation.

The tractor 1 is equipped with a control device (not shown) for controlling the tractor 11 and the tilling device 15, and the control device is operated from the outside by remote control such as wireless.

According to the embodiment configured as described above, when performing tillage work using the tillage device 15 in a field, the operator does not ride the tractor 1, but remotely controls the tractor 1 and the tillage device 15 from the outside. 1. Cultivation work will be carried out by unmanned operation.

This tilling work method will be explained based on the drawings of FIGS. 3 to 10. In these drawings, the tilling device 15 shown by solid lines is in the working position, and the tilling device 15 shown by phantom lines is in the non-working position. It shows that it is in position. Further, the shaded area of the field 26 indicates cultivated land 27, and the other areas indicate uncultivated land 28.

When starting tillage work, first, as shown in FIG.
The tractor 1 is positioned on the left side at one end side of 6, that is, the right end side corner in the illustrated example, and the tilling device 15
is set to the working position and driven.

Then, as shown in FIG. 4, the tractor 1 is moved straight forward toward the left end of the field 26, and the tilling device 15 performs tilling work.

As shown in FIG. 5, when the tractor 1 and the tilling device 15 reach the left end of the field 26, the tractor 1 is stopped and the driving of the tilling device 15 is stopped, and at the same time, the tilling device 15 is raised and the tilling device 15 is raised. Set to working position.

In this state, operate the club steering,
As shown in FIG. 6, the tractor 1 is driven diagonally to the left while the front and rear wheels 2 and 3 pass through the uncultivated land 28 without passing through the cultivated land 27. The device 15 is moved to an adjacent uncultivated land 28 on the side opposite to the offset side of the tilling device 15 with respect to the cultivated land 27. As a result, field 2
At the left end of 6, an uncultivated portion, that is, a headland 30 remains.

As mentioned above, when moving the tractor 1 and tillage device 15 from the cultivated land 27 to the uncultivated land 28, the front and rear wheels 2 and 3 of the tractor 1 do not pass through the cultivated land 27, so the front and rear wheels 2 and 3 of the tractor 1 do not pass through the cultivated land 27.・No traces of the rear wheels 2 and 3 remain.

Therefore, as described above, after moving the tractor 1 and the tilling device 15 to the uncultivated land 28, the tractor 1
Go straight backward toward the right end of the field 26.

Then, the tractor 1 and the tilling device 15 move to the seventh
As shown in the figure, when reaching the right end of the field 26, the tractor 1 is stopped, the tilling device 15 is placed in the working position, and the tilling device 15 is driven.
As shown in FIG. 8, the tractor 1 is moved straight forward and the tilling device 15 performs tilling work.

As shown in FIG. 9, when the tractor 1 and tilling device 15 reach the left end of the field 26, repeat the above operation to move the tractor 1 and tilling device 15 to the right end of the field 26, and in this way. , the fields 26 are cultivated one after another.

According to this plowing work method, the tractor 1 is operated by moving the tractor 1 straight in the front-rear direction and backward in the diagonal direction, and turning the tractor 1 at the end of the field 26. As a result, the area remaining at the end of the field 26 where no tilling work is performed, that is, the headland 29, can be made small, and even in the case of unmanned operation of the tractor 1 as described above, 1 and the tilling device 15 are easy to control, and the tilling work can be easily performed.

As shown in FIG. 10, the headland 29 remaining in the field 26 is separately cultivated by the tiller 15.

11 to 21 show a second embodiment of the present invention, in which a front rotary tiller 15F and a rear rotary tiller 15R are installed at the front and rear of the tractor 1.
are connected via connecting devices 16F and 16R, respectively, with a large offset to the right. 22 is a lift cylinder that raises and lowers the front tilling device 15F.

In addition, the tractor 1 and each tilling device 15F, 15R
This relates to the front tilling device 15F or the rear tilling device 15R, and relates to the tractor 1 of the first embodiment.
Components having the same function as each member of the tilling device 15 are indicated by adding a symbol F or R after the symbol of the member, etc. described above.

The tilling work method according to the second embodiment of the present invention will be explained based on the drawings of FIGS. 13 to 21. At the start of tilling work, first, as shown in FIG. The tractor 1 is positioned at one end of the field, that is, in the illustrated example, at a corner on the right end side, facing left.

Then, the front tilling device 15F is set to the non-working position, the rear tilling device 15R is set to the working position, and while driving the rear tilling device 15R, the tractor 1 is driven straight forward as shown in FIG. The tiller is directed toward the left end of the field 26, and tilling work is performed using the rear tiller 15R.

As shown in FIG. 15, when the tractor 1 and the tilling devices 15F and 15R reach the left end of the field 26, the tractor 1 is stopped, the driving of the rear tilling device 15R is stopped, and the rear tilling device 15R is stopped.
Raise it to the non-working position.

In this state, operate the club steering,
While the front and rear wheels 2 and 3 pass through the uncultivated land 28 without passing through the cultivated land 27, the tractor 1 is driven backward diagonally to the left, and as shown in FIG. 15F, 15R, cultivated land 2
7 to an adjacent uncultivated land 28 on the opposite side to the offset side of the tilling devices 15F, 15R.

Next, the tractor 1 is moved straight forward, and as shown in FIG.
When the tiller 15R reaches the left end of the field 26, the tractor 1 is stopped and only the front tiller 15F is lowered to the working position.
While driving F, as shown in FIG. 18, the tractor 1 is moved straight backwards toward the right end of the field 26, and the front tiller 15F performs tilling work.

As shown in FIG. 19, when the tractor 1 and the tilling devices 15F, 15R reach the right end of the field 26, repeat the same operation as above to move the tractor 1 and the tilling devices 15F, 15R as shown in FIG. Then, it is moved toward the left end of the field 26, and in this way, the field 26 is cultivated one after another.

According to the second embodiment, the tilling devices 15F and 15R perform the tilling operation not only when the tractor 1 moves straight forward but also when the tractor 1 moves straight backward.
The work efficiency is much higher than in the example.

By the way, as shown in FIG. 21, after the above-mentioned tilling work, headlands 29 will remain alternately on the left and right ends of the field 26, and these headlands 29, for example, Cultivate separately.

22 to 24 show a cultivation method different from the present invention, in which the tractor 1 is
As shown in FIG. 4, the tractor 1 and the tilling device 15 are moved straight from the right end to the left end of the field 26, and the rear tilling device 15R performs tilling work.
When F, 15R reached the left end of the field 26,
As shown in FIG. 15, both tilling devices 15F, 15
With R set at the raised position, the following work is performed without moving the tractor 1 rearward and diagonally to the left.

That is, with the rear tilling device 15R in the manual operation position, the front tilling device 15F in the working position, and the front tilling device 15F being driven, the tractor 1 is driven straight backward to remove the pillow left at the left end of the field 26. The land 29 is tilled by the front tiller 15F.

After cultivating the headland 29, as shown in FIG. 23, the driving of the front cultivating device 15F is stopped, the front cultivating device 15F is also raised to the non-working position, and in this state, the club steering is performed. and drive the tractor 1 backward diagonally to the left,
As shown in FIG. 24, after moving the tractor 1 and the tilling devices 5F, 15R to the uncultivated land 28, the tractor 1 is moved straight forward, and as shown in FIG. The tilling operation is restarted by the tilling device 15F.

According to the above tilling work method, there is an advantage that the tilling work can be performed without leaving the headland 29, but when the tractor 1 is moved from the position shown in FIG. 23 to the position shown in FIG. There is a drawback that traces of the rear wheels 2 and 3 remain on the cultivated land 27.

(Effects of the Invention) As described in detail above, according to the present invention, the tractor is operated only in a straight line in the front-rear direction and in a diagonal direction. Since the tractor is prevented from turning at the edge of the field, the headland remaining at the edge of the field can be made small, and even when plowing work is performed by unmanned operation of the tractor, the position of the tractor and tilling equipment can be easily controlled. Plowing work can be done easily. Furthermore, when the tractor is driven from cultivated land to uncultivated land, the front and rear wheels are made to pass through the uncultivated land instead of through the cultivated land, so no traces of the front and rear wheels are left on the cultivated land. The present invention has the above advantages,
It is very profitable.

[Brief explanation of drawings]

1 to 10 show a first embodiment of the present invention, FIG. 1 is a plan view, FIG. 2 is a side view of the same, and each of FIGS. 3 to 10 is an explanation showing a tilling method. 11 to 21 show a second embodiment of the present invention, in which FIG. 11 is an overall plan view, FIG. 12 is a side view of the same, and each of FIGS. 13 to 21 shows a tilling work method. 22 to 24 are explanatory diagrams showing a tilling work method different from the present invention. 1...Tractor, 2, 3...Front/rear wheels, 15,
15F, 15R...Rotary tillage device, 26...
Field, 27... cultivated land, 28... uncultivated land.

Claims (1)

[Scope of Claims] 1. A rotary tilling device is attached to a tractor capable of club steering operation in which the front and rear wheels are both steered in the same direction, with the rotary tilling device being offset in the left-right direction, and can be raised and lowered, and the tilling device is
A method of tilling work in a field using a tilling device that can be freely changed between a working position and a non-working position above it, in which the tractor is moved straight in the front and back direction with the tilling device in the working position. , the tilling device performs tilling work by driving from one end of the field to the other end, and when the tractor and tilling device reach the other end of the field, the tilling device is placed in the non-working position, and this In this condition, operate the club steering to drive the tractor diagonally while passing the front and rear wheels through uncultivated land. Move the tractor to the adjacent uncultivated land on the opposite side, and after this move, move the tractor straight forward and backward.
Bring the tractor and tillage equipment to the edge of the field,
A tillage work method using a rotary tillage device, characterized in that the uncultivated land in the field is successively tilled by repeating the above operations.