JP2001095308A - Device for regulating leveling plate of implement for tractor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable leveling plates installed in both right and left sides of a leveling plate for puddling a field to be automatically closed at the vicinity of a levee, or the like. SOLUTION: Right and left opening and closing devices 5 and 6 for opening and closing right and left leveling plates 3 and 4 formed at both sides of a leveling plate 16 at the rear part of a rotary harrow 2 for carrying out the tillage for puddling, the puddling, or the like, attached to the rear part of a tractor, and for leveling the field, are installed and the operation of the right and left opening and closing devices 5 and 6 is controlled by a controller based on the difference of the distance from the field surface, detected by right and left height sensors 40 and 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary halo which is mounted on a rear part of a tractor to perform tillage and tillage.
Left and right opening / closing devices are provided on both left and right sides of the rear flattening plate to open and close the left and right leveling plates to level the field scene, and a left and right height sensor for detecting the distance to the field scene And a control device for controlling the operation of the left / right opening / closing device based on a difference in distance to a field scene detected by the left / right height sensor. Available as a device.

[0002]

2. Description of the Related Art A rotary tilling tilling device provided at a rear portion of a tractor, a leveling plate and a rake provided at a rear portion of the rotary halo, and a left and right side of the leveling plate are manually placed on the left and right sides. Operate the leveling plate for opening and closing operation in the open state (the state of acting as a substitute), run this tractor in the field, perform the substitute and cultivation at the same time as the tilling for substitute, and work the field in a level state, Prepare for rice transplanting.

[0003]

The leveling plates provided on both the left and right sides of the leveling plate at the rear of the rotary halo are manually opened and closed to open (close) and close (retract). In many cases, the operator forgets the operation to the open state during the scraping operation, and the finished state of the scratching deteriorates. If you forget to close the ridge at the side of the shore, you may come into contact with the shore and break it. If the operator forgets to perform the above operation, the device may be damaged. However, the present invention is intended to solve these problems.

[0004]

For this purpose, the present invention is directed to a flat plate 16 at the rear of a rotary halo 2 mounted on the rear of a tractor 1 for tilling and scratching. Left and right leveling plates 3 and 4 for leveling the field scene, left and right opening and closing devices 5 and 6 for opening and closing the left and right leveling plates 3 and 4,
Left and right height sensors 40, 41 for detecting the distance to the field scene
And a control device 7 for controlling the operation of the left and right opening and closing devices 5 and 6 based on the distance to the field scene detected by the left and right height sensors 40 and 41. A leveling device for a tractor working machine is characterized in that:

[0005]

The tiller for the rotary halo-2 provided at the rear of the tractor 1, the leveling plate 16 and the rake provided at the rear of the rotary halo-2, and the left and right sides of the leveling plate 16 The left and right leveling plates 3 and 4, which can be freely opened and closed on the
The tractor 1 is operated and controlled in the open state (scratching action state) via the left and right opening / closing devices 5 and 6 which are operated and controlled, and the tractor 1 travels in the field to perform the slashing simultaneously with the slashing tillage. Work the field in a level condition and prepare for rice transplanting.

[0006] During the tilling for slashing and the slashing work, the left
The distance to the field scene is detected by the right height sensors 40 and 41,
From this detection value, the difference between the distance to the left and right field scenes is calculated,
If it is determined that the calculated difference is equal to or greater than a predetermined value, one side is determined to be a ridge. For example, assuming that the left leveling plate 3 side is the shore side, the control device 7 controls the operation of the left opening / closing device 5 that opens and closes the left leveling plate 3,
The left leveling plate 3 is operated in a closed state (storage state), and scratching is performed in a state where the left leveling plate 3 does not abut on the shore.

[0007]

The distance to the field scene is detected, and the difference between the distances to the left and right field scenes is calculated. Based on the calculated difference, the left and right leveling plates 3, 4 provided on the left and right sides are in the operating state. Or, by being automatically operated in a non-operating state, there is no need for manual operation at the edge of the shore, and labor can be saved.
The left and right leveling plates 3 and 4 can be prevented from being damaged by preventing contact with the shore.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The left and right sides of the average plate 16 at the rear of the rotary halo-2, which simultaneously perform the tillage for treading mounted on the rear part of the tractor 1 and the treading, are opened (draining action state) at the time of the treading work. Left and right that can be opened and closed in the closed state (storage state)
Right leveling plates 3 and 4 are provided, and left and right opening and closing devices 5 and 6 for opening and closing these left and right leveling plates 3 and 4 are provided, and control for operating these left and right opening and closing devices 5 and 6 is performed. A device 7 is provided, and on the left and right sides of the rotary halo-2,
Left and right height sensors 40, 41 for detecting the distance to the field scene
The leveling plate adjusting device 8 provided with the above is illustrated and described.

At the rear part of the tractor 1, there is provided a rotary halo-2 which is mounted via a three-point link structure as shown in FIGS. The rotary halo-2 has a support arm 9a protruding on both left and right sides of a central gear case 9;
A transmission cable is provided at one outer end of the support arm 9a.
A support frame 9a is provided at the outer end of the support arm 9a on the other side, and a rotary frame 1 is provided by providing a side frame 10b.
0 is formed in a gate shape.

The transmission case 10a and the side frame 1
0b, a claw shaft 11 is provided at a lower portion between the claw shafts 1b and 1b.
1, a rotary tilling body 12 is provided with a plurality of tilling claws 11a for tilling a field. The rotary tilling body 12 is configured to be vertically rotatable so that the tilling depth can be adjusted.

The front of the gear case 9 is provided with an input shaft 9b for inputting the rotation of the tractor 1 protruding forward, and the rear of the tractor 1 outputs the rotation of the tractor 1 protruding rear. PTO shaft 1a is provided, and these input shafts 9b
And the PTO shaft 1a are connected by the connecting tool 1b, and the claw shaft 11 of the rotary tilling body 12 is driven to rotate, so that the tilling claw 11a
The rotary tilling body 12 configured to cultivate tilling as a substitute in the above.
The front tillage cover covers the rotating outer circumference of the tillage claw 11a.
13, a rear tilling cover 14 is provided at the rear part so as to be vertically rotatable, and a rubber cover 15 is provided between the front tilling cover 13 and the rear tilling cover 14 to connect them.

A side plate 14a is provided on each of the left and right sides of the rear tilling cover 14, and a mounting hole 14b is provided at the rear end of the side plate 14a. On the left and right sides of the upper surface of the rear tillage cover 14, as shown in FIGS.
The support plates 17a, 17a for supporting the rear end from both sides are provided. Adjustment cases 18 are provided on both left and right sides of the upper surface of the front tillage cover 13, and the adjustment cases 18
An adjusting groove 18a is provided, and a support shaft 17b provided at the front end of the supporting rod 17 is inserted into the adjusting groove 18a and supported by the shaft.

The adjusting case 18 includes an adjusting lever 18.
b, and the rear tilling cover is rotated via a rotation moving device (not shown) by the front-rear adjustment rotation operation of the adjustment lever 18b.
14 can be adjusted vertically and can be fixed at an arbitrary position. Further, a regulating plate 18c is provided at the upper rear part of the adjusting case 18 so as to cover the rear tilling cover 14.
Is a configuration in which the downward rotation movement of a predetermined amount or more is restricted.

The leveling plate 16 is mounted on the rear side of the rear tiller cover 14 via a lower support plate 19a and an upper support plate 19b provided above the gear case 9. As shown in FIGS. 3 and 4, the leveling plate 16 for flattening the field scene is a rectangular box 20a at the front and a plate 20b on the rear side of the box 20a. And the left and right side plates 20
c and the like. Notches 20e are provided at predetermined intervals at the rear end of the plate portion 20b.

A front receiving plate 21 is provided at the front end of the box portion 20a of the flat plate 16, and the rear receiving plate 2 is provided at the rear end.
2 is provided. Also, between the vicinity of the rear end of the box portion 20a and the plate portion 20b, a lower surface is provided with a rake for pushing straw debris, grass and the like, which are contaminants in the field, into the soil. 23 are fixedly provided at predetermined intervals.

Mounting hole 21 of front receiving plate 21 of leveling plate 16
a, and a connection pin 21b is inserted into the mounting hole 14b of the side plate 14a of the rear tillage cover 14 so as to be vertically rotatable.

At the rear end of the lower support plate 19a, FIG.
As shown in FIG. 3, a laterally supporting rod 24 projecting rearward and having a U-shaped cross section is rotatably connected by a connecting pin 24a. The vertical support rod 25 having a U-shaped cross section is rotatably connected to the connection pin 2.
5a. A connection pin 22b is inserted into a mounting hole 25b at the lower end of the vertical support rod 25 and a mounting hole 22a of the rear receiving plate 22 of the leveling plate 16 so as to be connected vertically.

An adjusting case 26 having a U-shaped cross section is provided at a substantially central portion in the front-rear direction of the lateral support rod 24, and an adjusting groove 26a is provided on an upper side surface of the adjusting case 26 to adjust the position. An adjustment lever 26b is inserted into the groove 26a with the lower rotation pin 26c as the center of rotation.

The support plate 27 provided on the adjustment lever 26b
And a receiving plate 28 provided on the upper support plate 19b. An adjusting shaft 31 is attached to a receiving plate 30 provided at a front portion of the lateral support rod 24 with a mounting pin 31a.
It is a configuration mounted in. The adjusting shaft 31 is connected to the upper support plate 19
This is a configuration in which the support shaft 32 is rotatably provided in an insertion hole 32a of the support shaft 32.

By rotating the adjusting lever 26b back and forth in the adjusting groove 26a, the adjusting shaft 31 is slid.
In this configuration, the leveling plate 16 and the left and right leveling plates 3 and 4 are adjusted to rise.

Left and right leveling plates 3, 4 are provided on both left and right sides of the leveling plate 16 as shown in FIG. The rotation support plates 33, 33 provided on the front and rear sides of the bases of the left and right leveling plates 3, 4 and the receiving plates 34, 34 provided on the left and right ends of the upper surface of the leveling plate 16 are provided. The left and right leveling plates 3 and 4 are connected to each other by a rotating pin 34a, and are openable and closable up and down, and open and closed (storage action state) and closed (storage state). is there.

The left and right support arms 9a, 9a
Left and right open / close motors 36, 37 are provided on the motor receiving plate 35 provided on the upper side surface of the motor, and the left / right open / close motors 36, 37 are provided with left and right open / close motors 36, 37. The left and right opening and closing devices 5 and 6 for opening and closing the right leveling plates 3 and 4 are provided. These left and right opening and closing devices 5 and 6 are provided with the left and right opening and closing motors 36,
Left and right rotating arms 38a, 39a provided at the shaft end of 37
And left and right wires 38b, which connect the rotation shafts 33a provided between the rotation support plates 33, 33 of the left and right leveling plates 3, 4, respectively.
39b and the like.

The leveling plate 16 and the left and right leveling plates 3, 4 are automatically rotated up and down independently by moving the adjusting lever 26b back and forth. In addition, left and right open / close motor 3
By the forward and reverse rotation of 6, 37, the left and right opening and closing devices 5, 6 are automatically turned up and down, and the left and right leveling plates 3, 4 are opened (scratch action state) and closed ( (Storage state). When the rotary tilling body 12 rotates vertically,
The leveling plate 16 and the left and right leveling plates 3 and 4 are also configured to simultaneously rotate vertically.

The transmission case 10 of the rotary machine frame 10
a, and left and right height sensors 40 and 41 of an ultrasonic system for detecting a distance to a field scene are provided near the upper portion of the outer surface of the side frame 10b.

The detection values detected by the left and right height sensors 40 and 41 are input to the CPU 43 via the input interface 42 of the control device 7. The CPU 43 calculates the difference between the distances to the left and right field scenes based on the input detection values. Based on the calculated left and right difference values, forward / reverse rotation start control, stop control, and the like of the left and right open / close motors 36 and 37 are performed from the CPU 43 via the output interface 44. The operation control and the stop control of the right opening / closing devices 5 and 6 are performed, and further the opening / closing control of the left / right leveling plates 3 and 4 is performed.

The opening and closing control of the left and right leveling plates 3 and 4 is performed as follows. The distance to the field detected by the left and right height sensors 40 and 41 during the scratching operation is input to the control device 7, and a left-right difference is calculated from the detected value. The calculated difference value is, for example, , 10mm on the left
If it is higher than the above, it is determined by this calculation that the left side is the shore. Based on this determination, the left opening / closing motor 36 is started to rotate forward by the control device 7 and the left opening / closing device 5 is turned left. The left leveling plate 3 is operated and controlled to be in a closed state (storage state) via an arm 38a and a left wire 38b.

The first scraping operation is started. At the time of the first scraping operation, the left and right leveling plates 3 and 4 are operated and controlled to be in a closed state, and are sequentially scraped from the center. Is carried out, and punishment to the edge is performed. When the first scraping is completed, the completion is stored in the memory 45 of the control device 7 and the second finishing scraping operation is started. If the calculated difference value is calculated to be, for example, 10 mm or less, the left and right leveling plates 3 and 4 are controlled to be in the open state by this calculation, and the finishing margin is sequentially performed from the center. When a ridge is formed, as described above, one of the ridges, for example, the left leveling plate 3 is operated and controlled to be closed, so that the finishing margin on the ridge is performed.

The rotary till 12 and the flat plate 1
6 and the left and right leveling plates 3 and 4 are controlled to rise to a predetermined position, and after a predetermined time elapses, for example, one minute, the left and right leveling plates 3 and 4 are closed ( Storage state)
The operation is controlled. This is a control that is performed when traveling on a road, crossing a shore, or the like.

Rotary tillage body 1 of Rotary halo-2
When the rotary halo-2 is mounted on a tractor or the like and transported as shown in FIGS. 6 and 7, on the outer surface of the rear side of the transmission case 10a and the side frame 10b. The transport support device 51 for preventing the rotary halo-2 from overturning on the truck bed is mounted with bolts, nuts and the like.

The transport support device 51 includes a front support rod 52
And a rear support rod 53 that can be opened and closed back and forth.
Thereafter, an opening and closing lever 54 for opening and closing the support rod 53 is provided. A caster 55 is provided at the lower end of each of the front and rear support rods 52, 53, and a fixing lever (not shown) is provided on one of the casters 55.

When the rotary halo-2 is removed from the tractor 1 and transported on a truck bed, the opening / closing lever 54 is rotated to open the rear support rod 53 as shown in FIG. And the tilling claw 11a of the rotary tilling body 12
Is brought into contact with the bottom plate of the loading platform of the truck, and is conveyed.

Thus, even if the rotary halo-2 is placed on a truck bed and transported, damage due to falling can be prevented and transport can be performed safely. As shown in FIG. 8, the laser type rotary halo 46 is provided with a mounting plate 47a above the transmission case 10a, and the mounting plate 47a has a laser receiver for detecting the tillage depth. 47 is provided, and a cylinder 48 is provided on the rear side of the gear case 9.

At the rear end of the front tillage cover 13, a rear tillage cover 14 is provided so as to be vertically rotatable.
On the rear side, a flat plate 16 and a rake 2
3 and the like are provided.

On both left and right sides of the gear case 9, support arms 9a are provided, and the support arms 9a, 9a are provided.
A transmission case 10a and a side frame 10b are provided at both ends of the rotary tilling body 12 and
Is provided.

The end of the cylinder 48 and a rear tillage cover
The support rod 17 is provided on the support plate 17 a provided on the support 14. The upper part of the support rod 17 has a front tillage cover 13.
Is rotatably supported on a support plate 49 provided in the above.

The support plate 49 is provided with an angle sensor 50 for detecting the opening / closing angle of the rear tillage cover 14, and the angle sensor 50 is provided with a leveler pressurizing device 5 provided on the tillage cover 14.
In this configuration, the angle is detected through the line 0a.

The relation between the pressing force of the rear tillage cover 14 and the tillage depth tillable by the rotary tillage body 12 will be described with reference to the flowchart shown in FIG. Tilling work and scratching work are started simultaneously, and (S-
101), the angle (θ) detected by the angle sensor 50 is compared with a pressing force constant (α) set and stored for each angle, and (θ)> (α) is detected (S− 102),
If the determination is YES, it is determined that the amount of elevation of the tillage cover 14 is large and the detected tillage depth is deeper than the set tillage depth. When it is determined that there is, the operation of the cylinder 48 is controlled to the strong side, and the pressing force of the rear tillage cover 14 is increased (S
-103). If NO is determined, the cylinder 48 is operated to the weak side to reduce the pressing force of the rear tillage cover 14 (S-104), (S-103), (S-10).
4) is returned (S-105).

As a result, the difference in height at the time of finishing scratching can be reduced, and the uniformity of scratching can be improved.

[Brief description of the drawings]

FIG. 1 is an enlarged side perspective view of a rotary halo.

FIG. 2 is an overall side view when a rotary halo is mounted on a tractor.

FIG. 3 is an enlarged side view of a rotary halo portion.

FIG. 4 is an enlarged side view of the rear tillage cover.

FIG. 5 is a block diagram

FIG. 6 is an enlarged side view of the transfer support device.

FIG. 7 is an enlarged side view of the transfer support device during transfer.

FIG. 8 is a view showing another embodiment, and is an enlarged side view of a laser type rotary halo portion.

FIG. 9 is a view showing another embodiment, and is a flowchart.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tractor 2 Rotary halo 3 Left leveling board 4 Right leveling board 5 Left opening / closing device 6 Right opening / closing device 7 Control device 16 Leveling plate 40 Left height sensor 41 Right height sensor

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2B033 AA05 AB01 AB11 AC05 BA01 BB02 DB01 DB34 DB35 DB37 DB44 ED14 2B034 AA09 BA06 BA07 BA08 BB01 BC06 EB02 EB06 EB14 EB15 JA07 JA24 JB02 JB17 JB18

Claims (1)

[Claims] 1. A flat plate 16 at the rear of a rotary halo 2 mounted on the rear of a tractor 1 for tilling and substituting.
Left and right leveling plates 3 and 4 to level the field scene on both sides
A tractor operation provided with left and right opening and closing devices 5, 6 for opening and closing the left and right leveling plates 3, 4, and left and right height sensors 40, 41 for detecting a distance to a field scene. A tractor for controlling the operation of the left and right opening and closing devices 5, 6 based on the distance to the field scene detected by the left and right height sensors 40, 41. Work machine leveling device.