JPS63287414A - Rolling apparatus for seedling transplanting machine or such - Google Patents

Abstract

PURPOSE:To enable stable control of rolling of a transplantation machine, scarcely changing the rolling control sensitivity, etc., by placing a rolling- detection and compensation device to keep the positions of left and right sensor floats relative to a rolling sensor detecting the vertical motion of the floats. CONSTITUTION:When upward motion of one of left and right sensor floats 3 is detected by a rolling sensor 5, the rolling of the transplantation machine is performed by the elongation or retraction of a rolling cylinder 39 to control and keep the transplantation machine parallel to the surface of soil. A float control arm 21 is rotated by a lever 19 of a height-controlling device 4 and the pivot 22 which is a rotational center of each float 18, 3 is vertically moved relative to the machine 2 to change the depth of transplantation. In the above procedure, a lever 36 having the rolling sensor 5 is vertically moved with links 30, 32, etc. almost keeping the parallel state to the sensor float 3. The relative vertical position between the rolling sensor 5 and the shaft 27 is maintained in an almost definite state.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rolling device such as a seedling transplanter, and the present invention relates to a rolling device such as a seedling transplanter, and uses a sensor float that slides in contact with the soil surface while the device is traveling to reduce the left and right inclination of the device with the working device. While detecting this, it controls the rolling of the aircraft so that it is horizontally parallel to the soil surface.

It can also be used as a seeding, fertilizing machine, etc.

Prior Art and Problems to be Solved by the Invention A pair of left and right sensor floats is slid on the underside of an aircraft having a working device, and the left and right inclination of the aircraft is detected by the vertical movement difference between the left and right sensor floats. At the same time, in a configuration in which the machine is controlled in a row-rig manner horizontally parallel to the soil surface, the vertical support height of these sensor floats relative to the machine body can be changed and adjusted to adjust the height and depth of the working equipment's action on the soil surface. Adjust these sensors with float.

The vertical movement of this sensor float changes its relative position with the rolling sensor, which is turned ON, OFF, etc., and the sensitivity or timing of rolling often changes.

Means for Solving the Problems This invention provides a machine body (2) having a working device (11) with a pair of left and right sensor floats (2) whose front ends are vertically swingable.
3), and a height adjustment device (4) that moves the left and right sensor floats (3) up and down with respect to the machine body (2) to adjust the working height of the work device (1) with respect to the soil surface. and,
Regardless of the height adjustment by the height adjustment device (4), the relative position between the sensor float (3) and the rolling sensor (5) that detects the vertical movement of the sensor float (3) is maintained constant. A rolling device such as a seedling transplanter is provided with a rolling detection correction device (6).

Effects and effects of the invention When the working device (1) is propelled by the running of the vehicle body.

This type of work is performed in which the machine body (2) having the work device Tll performs a predetermined work on the soil surface with the work device (1) while being supported by a sensor float (3) etc. that slides on the soil surface. While the middle, left and right sensor floats (3) slide on the soil surface, their front ends swing up and down due to changes in the depth of the soil. Left and right sensor floats (31
(When a vertical difference occurs between the sensor floats (3), the rolling sensor (5) is activated by this sensor float (3).
Rolling control is performed so that one machine body (2) is parallel to the soil surface, and the height of the work equipment N (1) relative to the soil surface is maintained constant.

When changing and adjusting the height of this working device (to the soil surface), operate the height adjustment device (4).

The support position of the sensor float (3) relative to the aircraft body (2) is changed up or down. Sensor float (
When the support position of 3) is lowered, the position of the working device (4) with respect to the soil surface becomes higher, and when it rises to the correspondence, the position of the working device (4)
4) The position will be lower.

Along with the adjustment by the height adjustment device N (4), the rolling detection correction device (6) operates, and the sensor float (3)
), the rolling sensor (5) is moved up and down to keep the distance between these two (31 (5) constant). Therefore, the height adjustment device M (4) allows the working device (1) to move up and down. Even if the height of the sensor float (3) is changed,
Since the relative position between the sensor and the rolling sensor (5) hardly changes, stable rolling control can be performed by keeping the rolling control sensitivity and operation timing constant. The shape of the seedling transplanter is shown, and the vehicle body (
7) has left and right front wheels (9) at the front that can be freely steered by a control handle (8), and left and right rear wheels (1) at the rear.
, and a power take-off shaft (II), etc., and connect these to the cockpit 0.
It is configured to be driven by a prime mover (+31) mounted on the lower side of δ.At the rear end of this vehicle body (7), a seedling planting device, which is a working device (1), is connected by an upper and lower four-point parallel link mechanism (14). are rotatably connected around the rolling shaft (19), and connected to the input shaft (11) in the body (2) of this seedling planting device.
9 are interlocked and connected from the power take-off shaft (11). This link mechanism is configured to be raised and lowered by a lifting cylinder C that is extended and contracted by hydraulic pressure between it and the vehicle body (7).

The seedling planting device consists of a float (old) along the left and right center on the underside of the fuselage (2), and a sensor float (located on both left and right sides).
3) and the height adjustment device (4) relative to the rear of the aircraft (2).
) is pivoted to the lever (float adjustment arm 2 which is moved up and down around the support shaft (A) by i). ) Each float adjustment arm +211 arranged in the above unit moves up and down.

Pivotal support for each float flEI and sensor float (3) ■
Adjust the position up or down. No is an adjustment groove that locks the adjustment position of the lever (n).

On the upper side of the aircraft (2) is a seedling tank Q that accommodates and feeds seedlings.
4 are interlocked to move back and forth in the left and right direction.

At the rear, a plurality of seedling planting devices are provided for separating and planting the seedlings supplied from the seedling tank Q4.

Each float (1111 (3)) has a shaft (5) on the front bracket (to), and this shaft (5) and the fuselage (2) are connected by a bendable link (to). The pivot point between this link a!a and the shaft (jun) allows the shaft (5) to fit loosely into a long hole (to) formed along the link (to).

The rolling detection correction device (6) includes the sensor float (
3) Connect the link rod 0 to the pivot part (2a) of the rear end, and connect the link (to) that is also pivoted to the pivot part OB of the link (to) for the fuselage (2) to this link (to). ) to pivot o
Then, each of these pivot parts (215 on ei and support shaft (
A four-point linkage mechanism is constructed between the float adjusting arm I21), and each sensor float (3) can move up and down in parallel when the height is adjusted by the float adjustment arm I21).

In addition, each link (support) is provided with a bracket (to), and this bracket (b) is provided with a long hole in the direction perpendicular to the long hole (to), and the shaft (5) is inserted into this long hole. 09 is also allowed to play (3). Each sensor float (3) refracts each link (to).

and long hole G! The shaft (5) is guided up and down by 3'j, etc., and swings independently within a certain range.

The link O1 is extended forward from the pivot portion 03, and a lever (to) that rotates up and down is pivotally attached to the front end of the link O1, and a rolling sensor (5) is provided at the front end of the lever Og. The rolling sensor (5) is configured to turn on when it moves downward and hits the lower shaft (5). A wire (to) is provided between the rear end of this lever (to) and this link (to), and when this wire (to) is pulled in the direction of arrow (a), the lever (to) is connected to the pivot joint. It can be turned ON by moving the rolling sensor (5) downward in a targeted manner and bringing it into contact with the shaft (5).

a link mechanism α4 that is controlled to rise and fall relative to the vehicle body (7);
A rolling cylinder (to) which is operated to expand and contract by hydraulic pressure is provided between the link mechanism circle and the body (2) which is rotatable around the rolling axis 09. The hydraulic circuit of the rolling cylinder (to) is provided with a rolling control valve that is switched from a neutral position to a counterclockwise position or a clockwise position by the left and right rolling sensors (5). When either side of the left and right rolling sensors (5) is turned on, the rolling cylinder (to) is telescopically operated by the rolling control valve, and this rolling sensor (5)
The aircraft (2) is controlled to roll so that the side on which the switch is turned on moves upward, thereby maintaining one aircraft (2) in a horizontal horizontal attitude.

The float (+111 is the working device (
This constitutes a sensor float for pitching control in 1), and while moving up and down relative to the aircraft body (2), it detects changes in the height of the vehicle body (7) relative to the rear wheels (9), that is, the depth of the soil. It is something to detect. This float liB is the axis (
If the lift cylinder (+
Extend from 7) and move link mechanism 04) upward to create a work bag! (1) is controlled upward, and conversely, if the float (11) moves downward, the lift control valve is switched to the downward position.

The working device (1) is controlled to descend and the working position (1) is raised or lowered according to the depth of the soil to maintain a constant working height relative to the soil surface.

A sensitivity adjustment lever 141) is provided in the vicinity of the cockpit 0, and is guided between the adjustment grooves so that it can be freely operated. Insensitive position by changing (b)
Sensitive! ! Wire 13 to adjust the distance between (c)
It has an interlocking configuration. 14I is a float (6-pronged bracket of 1B) that connects this wire (to),
A wire (to) for operating the left and right rolling sensors (5) is connected to this sensitivity adjustment lever 01),
When this sensitivity adjustment lever 6υ is rotated to the sensitive (B) side, the wire (To) is pulled (A) and the rolling sensor (
5) is provided in such a manner that it approaches the shaft (5) side.

During traveling work, the work device (1) is supported by the lifting link mechanism 04 and each float (Ilm+31 etc.) relative to the vehicle body (7), and while propelling the soil surface, each float 1
11313) etc., seedling planting is performed using a seedling planting device. When the soil depth becomes deeper, the float (one) is moved up and the lifting cylinder (Iη) is extended by the lifting control valve (2) to raise the seedling planting device.

Conversely, when the soil depth becomes shallow, the float +18 is moved down to lower the seedling planting device. By such lifting control, the seedling planting device is maintained at a constant height above the soil surface, and the seedling planting depth is maintained constant.

Also, such a float (Ill (in vertical movement of 31).

When one of the left and right sensor floats (3) is moved up and detected by the rolling sensor (5) due to the car body (7) or the aircraft body (2) tilting left or right, etc., the rolling cylinder (towards the top) is activated by the rolling control valve. ) is expanded and contracted, and the one body (2) is rolled with respect to the vehicle body (7) and the elevating link mechanism 04, and the seedling planting device is maintained and controlled to be left and right parallel to the soil surface.

That is, when the left and right sensor floats (3) (31) move up and down at the same time and the shaft (5) approaches and separates from the rolling sensor (5) to turn ON and OFF, the lift control by the float (Ill) is performed. , no rolling control is performed, but
When the left sensor float (3) moves up above the - chamber, the working device (1) is tilted to the left with respect to the soil surface, so this left rolling sensor (5)
NL, te, control the rolling control valve clockwise and move one aircraft (
2) is rolled clockwise. Conversely, if the left sensor float (3) moves up above the - chamber, the aircraft (2)
) to the left and right to keep the seedling planting device parallel to the soil surface.

To reduce the planting depth of seedlings, move the lever (operate ■ to float adjustment arm 21) of the height adjustment device (4) to the lower side (
(d), the pivot cIa, which is the center of rotation of each float (lft (3)), moves downward relative to the body (2), increasing the seedling planting depth relative to the soil surface of the seedling planting device. At this time, the lever with the rolling sensor (5) by the link OI (support) etc. becomes shallower.
3), the vertical relationship between the rolling sensor (5) and the shaft fin remains constant.

Conversely, when increasing the seedling planting depth, the float adjustment arm t211 is rotated in the opposite direction of arrow (d), but the relative position between the rolling sensor (5) and the shaft (5) does not change.

When you move the sensitivity adjustment lever to the sensitive (B) side.

As the angle of attack of the float 1111 becomes smaller, the sensitivity of soil depth detection for outer control becomes more sensitive, and the wire (
Due to the loosening of the lever (to), the lever (to) is rotated in the pivot direction, and the rolling sensor (5) comes into contact with or approaches the shaft (5), and the sensitivity of the rolling sensor (5) also becomes sensitive. .

Conversely, when the sensitivity adjustment lever 6D is adjusted to the insensitive (C) side, the rolling sensor (5) is moved away from the shaft, and the sensitivity of the rolling sensor (5) becomes dull.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of a part thereof, Fig. 2 is a plan view of a part thereof, Fig. 3 is a plan view of a part thereof, and Fig. 4 is a side view of a part thereof. FIG. 5 is a plan view. In the figure, code (1) is work equipment! , (21 is the fuselage, (3) is a sensor float, (4) is a height adjustment device, (5) is a rolling sensor, and (6) is a rolling correction device.

Claims (1)

[Claims] A pair of left and right sensor floats (3) whose front ends are vertically swingable are provided on a machine body (2) having a working device (1),
A height adjustment device (4) that moves the left and right sensor floats (3) up and down with respect to the machine body (2) to adjust the working height of the working device (1) with respect to the soil surface; The sensor float (
3) and a rolling sensor (5) that detects the vertical movement of the sensor float (3). A rolling device such as a seedling planting machine is provided with a rolling detection correction device (6) that maintains the relative position of the sensor float (3) substantially constant.