JPH0937631A - Second mower lifting mechanism of common combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obviate the trouble caused by the presence of a definite distance between a main mowing blade and a second mower in a common combine furnished with second mower. SOLUTION: A second mower M of a common combine furnished with a second mower is housed by the closure of an auto-lift switch to lift a reaping part A after running the machine body a prescribed distance nearly equal to the distance between the main mowing blade 19 and the second mower M. The second mower M is lowered by the closure of an auto-set switch to lower the reaping part A after running the machine body a prescribed distance nearly equal to the distance between the main mowing blade 19 and the second mower M.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating mechanism for a second mower that cuts a root of a grain culm, which has been once mowed higher with a main mower, in a normal combine harvester so as to lower the mower again.

[0002]

2. Description of the Related Art In a conventional ordinary combine second lift mechanism, the height of a reaper is detected by a high position switch, and the second mower is stored when the high position switch is turned on. Further, when setting the mowing posture, the second mower is turned on, and when the high position switch is turned off, the second mower is lowered to set the second mower in the mowing posture. However, in the above-mentioned conventional technology, the second mower is stored / set by the high position switch, and since the control is not linked to the control of the cutting height, uncut residue occurs and the second mower collides with the ground. It was sometimes damaged.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned problems of the prior art. When the reaper is raised, the second mower is accommodated in conjunction with the control of the reaper height, and On the contrary, when the reaper is lowered, the height of the second mower is set. That is, if the reaping lift switch is turned on while the fixed distance is being integrated after the auto lift switch is turned on, the second mower is stored even if the reaper has not advanced the fixed distance. The feature is that the cutting and raising switch is used as a trigger, and the lowering switch is not a trigger. This prioritizes control in the direction in which the second mower is stored, and is intended to protect the second mower from collision with the ground. In addition, the effect on ridges and wetlands is great.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. According to the present invention, in the ordinary combine harvester equipped with the second mower, after the auto lift switch for raising the reaper is turned on, after the aircraft has traveled a fixed distance approximately equal to the distance between the main cutting blade and the second mower. , The second mower M is housed, and after the auto set switch is turned on, the second mower M is configured to descend after the aircraft has traveled a fixed distance approximately equal to the distance between the main cutting blade and the second mower. .

According to the second aspect of the present invention, when the reaping lift switch is turned on while the fixed distance is being integrated after the automatic lift switch is turned on, the second mower does not have to move for a fixed distance. Is configured to store.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The problems to be solved by the present invention and the means for solving the problems are as described above. Next, the embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall side view of a normal combine with a second more M attached, FIG. 2 is a drawing showing conditions and a judgment section for raising and storing the second more M, and FIG. 3 is a state where a normal combine is mowing in a field. FIG. 4 is a side view showing a state in which the mowing part A is raised and rotated for traveling at the end of the field, and FIG. 5 is a drawing showing a defect of a cut mark in the conventional elevation control of the second mower M. FIG. 6 shows the second more M of the present invention.
FIG. 7 is a drawing showing a cutting trace improved by the lifting mechanism of FIG. 7, FIG. 7 is a drawing showing a system in which the cutting controller 1 determines whether the cutting raising switch 2 is ON, and outputs the second mower control circuit 3, and FIG. FIG. 9 is an electric circuit diagram, FIG. 9 is a drawing showing a flowchart of the second mower elevating mechanism of the present invention, FIG. 10 is a drawing showing the same flowchart, FIG. 11 is a drawing showing the same flowchart, FIG. 12 is a drawing showing the same flowchart, and FIG. It is drawing which similarly shows a flowchart.

Referring to FIG. 1, the structure of a normal combine combiner equipped with a second mower M will be described. The threshing device D is placed on the crawler type traveling device 15. A feeder box 16 is projected forward from the threshing device D, a platform 14 is provided at the tip of the feeder box 16, and an auger mechanism 20 is arranged in the platform 14. A main cutting blade 19 is arranged in the front part of the platform 14 so as to have a full cutting width, and a weeding device 18 is arranged in front of the main cutting blade 19. Also the main cutting blade 19
A pull-up reel mechanism 21 is provided above the weeding device 18. Then, the feeder box 16, the platform 14, the auger mechanism 20, the raising reel mechanism 21, the main cutting blade 19, the weeding device 18, etc. are generally referred to as a mowing section A, and can be moved up and down by a hydraulic cylinder 17. .

The second mower M of the present invention is disposed below the feeder box 16 and is lifted and lowered by a lifting mechanism other than the hydraulic cylinder 17 that lifts and lowers the platform 14. In the above configuration, when the grain culm sown by the weeding device 18 is lying,
The raising reel mechanism 21 raises the culm to the culm state and cuts the stock root into the main cutting blade 19. The grain culms after the cutting are subjected to threshing by transporting the whole grain culm to the threshing device D and introducing it. In the case of a self-removing combine that has been widely used in the past, only the tip portion is inserted into the threshing device D, and the other part of the grain stem is maintained in a state of being sandwiched by the feed chain. On the other hand, in the case of an ordinary combine harvester, the point that the whole grain culm is threshed while being beaten by the handling barrel of the threshing device D is different.

When cutting with the main cutting blade 19, the upper part of the grain culm above the root of the grain is cut as much as possible to reduce the amount of unnecessary grain culm input to the threshing device D.
Second more M placed at the rear of platform 14
By doing so, the grain culm that has been over-mowed is cut again to avoid the protruding state of the grain culm on the soil surface so as not to interfere with the traveling passage of the crawler type traveling device 15.

The conditions under which the second mower M is raised and stored in FIG. 2 will be described. That is, the second mower M is raised and stored under the following conditions. . When the second more switch is turned off. When the reaping switch is turned off. When the reverse drive switch is turned on. The second mower M is configured to be raised and stored only when the reaper A is raised to a certain height or more and the high position switch is turned ON, and in the conventional case only when there are four conditions. . In addition to the above four conditions, the present invention adds () when the auto lift switch is turned on, and when the auto lift switch is turned on, the distance between the main cutting blade 19 and the second mower M is substantially equal. After the aircraft has traveled a distance, it is configured to be raised and stored.

And in the above description,
The determination of the three conditions of 2 is performed by the second mower control circuit 3, and the determination of the cutting controller is performed. In the conventional mechanism, since the operator travels at the end of the field, the cutting section A
When the raising operation is performed, since the drive switch of the mowing unit A is in the ON state, the condition for raising the second mower M does not apply, and the mowing unit A is raised by the automatic lift switches 5U and 5D. When the reaper A is reached to a certain height and the high position switch is turned on, the second mower M rises. Therefore, after the main cutting blade 19 has reaped, the second mower M rises while remaining. There are also things to do.

As described above, when the ordinary combine harvester is circulated at the end of the field as shown in FIG. 3, the high mowing state cut by the main cutting blade 19 is not processed by the second mower M, but the second mower is processed first. The fault condition in which M has risen is shown in FIG. Further, in FIG. 4, the mowing part A is sufficiently raised, but since the high position switch has not yet been turned on, the second mower M remains in the set position as it is, and the ridge at the end of the field. A state in which a problem such as plunging into the area has occurred is illustrated. That is, when the mowing part A is raised at the time of traveling at the end of the field, the second mower M does not rise until the mowing part A reaches a high position, and the sled portion is maintained in the installed state. Therefore, it feels uncomfortable to lift the second mower M. In addition, problems such as plunging into the ridge occur.

In the present invention, as shown in FIG. 6, the second mower M is used up to the position where the main cutting blade 19 has mowed.
Is maintained in a set state, and the second mower M rises when it is passed therethrough. Further, even when the main cutting blade 19 is lowered, it is not necessary to perform the cutting work by the second mower M in the portion where the main cutting blade 19 is not cutting, so the main cutting blade 19 is lowered.
In the electric circuit diagram of FIG. 8, the delay timer 4 is set so that the second more M descends only at the position where the cutting is started.
U and 4D are solenoid valves VU and V of the second mower M
It is installed in the D part.

However, in this way, after operating the automatic lift switches 5U and 5D, the second mower M should rise for the first time after the vehicle travels for a certain distance, and then the second distance M should move after the vehicle travels for a certain distance. Later, Second More M
If the vehicle is configured to descend to the set position, in the event of an unexpected accident or unexpected trouble, the second mower M may inevitably need to be raised and stored before traveling for a certain distance. .

In such a case, as shown in FIG. 8, when the cutting raising switch 2 is operated, in this case, the second mower M can be raised and stored before passing a certain distance. In this case, as shown in FIG. 7, the operation of the mowing lift switch 2 is determined by the mowing controller 1,
The control operation is performed by outputting a signal to the second more control circuit 3. Further, in FIG. 8, the second more switch 6 is shown, and the second more switch M is configured to be raised even when the second more switch 6 is turned off.

9 to 13 show control flowcharts of the second mower elevating mechanism of the ordinary combine harvester of the present invention. In this flowchart,
By operating the auto lift switches 5U, 5D, etc., it is first judged whether or not the cutting unit A has been raised to the high position switch, and if it is not raised to the position of the high position switch, the main Next, it is determined whether or not the aircraft has traveled a fixed distance approximately equal to the distance between the cutting blade 19 and the second mower M, and the vehicle is configured to be raised and stored.

Also when the cutting unit A is lowered, it is judged whether or not the aircraft has advanced a fixed distance substantially equal to the distance between the main cutting blade 19 and the second mower M, and the second mower M is lowered to set the state. It is configured to The elevating control of the second mower M is also performed by determining whether the threshing switch or the reaping switch has been operated, and whether the reaping raising switch 2 or the second mower switch 6 has been operated.

[0018]

Since the present invention is constructed as described above, it has the following effects. According to the first aspect of the invention, the second mower is raised when the mowing section is raised, and conversely, when the mowing section A is lowered, in conjunction with the control of the mowing height by the automatic lift switches 5U and 5D. It is configured to set the height of the Second More M,
The control of the second mower M is delayed by a constant distance substantially equal to the distance between the main cutting blade 19 and the second mower M, so that the main cutting blade 19 does not leave a cut mark and the main cutting blade 19 is cutting. The second more M no longer had to work on the missing parts.

Since the automatic lift switch is turned on and the reaping lift switch 2 is turned on due to an unexpected situation during the accumulation of a certain distance after the auto lift switch is turned on, the machine body will be turned on. By accommodating the second mower M, it is possible to avoid an accident in which the second mower M collides with the soil surface even if the main cutting blade 19 and the second mower M have not traveled a certain distance substantially equal to the distance between the second mower M and the second mower M. .
As a result, priority is given to the control in the direction in which the second mower M is stored, and protection from the collision of the second mower with the ground can be achieved. In addition, the effect on ridges and wetlands is great.

[Brief description of drawings]

FIG. 1 is an overall side view of a normal combine with a second mower M attached.

FIG. 2 is a diagram showing conditions and a determination unit for raising and storing a second mower M.

FIG. 3 is a plan view showing a state where the ordinary combine harvester is mowing in the field.

FIG. 4 is a side view showing a state in which the cutting unit A is rotated upward to rotate at the end of the field.

FIG. 5 is a view showing a defect of a cut mark in the conventional elevation control of the second mower M.

FIG. 6 is a view showing a cut mark improved by the lifting mechanism of the second mower M of the present invention.

FIG. 7 is a drawing showing a system in which the cutting controller 1 determines whether or not the cutting up switch 2 is ON, and outputs the result to the second mower control circuit 3.

FIG. 8 is an electric circuit diagram of the present invention.

FIG. 9 is a drawing showing a flowchart of the second mower lifting mechanism of the present invention.

FIG. 10 is a drawing showing a flowchart of the same.

FIG. 11 is a drawing which also shows a flowchart.

FIG. 12 is a drawing which also shows a flowchart.

FIG. 13 is a drawing showing a flowchart of the same.

[Explanation of symbols]

 1 Mowing controller 2 Mowing lift switch 3 Second mower control circuit 4U, 4D Delay timer 5U, 5D Auto lift switch 6 Second mower switch

Claims (2)

[Claims] 1. In an ordinary combine harvester equipped with a second mower, after the auto lift switch for raising the reaping section A is turned on, after the aircraft has traveled a constant distance approximately equal to the distance between the main cutting blade and the second mower. , The second mower M is stowed and the cutting unit A is lowered. After the auto set switch is turned on, the second mower is lowered after the aircraft has traveled a certain distance approximately equal to the distance between the main cutting blade and the second mower. A normal combine second mower elevating mechanism characterized by being configured accordingly. 2. The second mower raising / lowering mechanism according to claim 1, wherein when the reaper raising switch 2 is turned on while the fixed distance is being integrated after the automatic lift switch is turned on, the advance of the fixed distance is advanced. Even if it is not, it is a second combine mower elevating mechanism of a normal type combine, which is configured to accommodate the second mower M.