JPH0561887B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for installing a threshing device in the front part of a traveling vehicle body equipped with a threshing device.
This invention relates to a full culm input type combine harvester in which a reaping section consisting of a reaping device for cutting planted grain culms and a feeding device for feeding the harvested grain culms to a threshing device is connected in a vertically movable manner.

[Conventional technology]

In general, combine harvesters with the configuration described above are structured to send the harvested grain culm to the whole culm threshing device, so when harvesting grain culms, such as rice and wheat, which have a grain-bearing part only at the upper end of the culm, the tip of the grain culm is It is desirable to harvest only the grain part and send it to the threshing device from the viewpoint of improving processing capacity, and conventionally, with the combine harvester of the above configuration, harvesting work is sometimes performed in which only the tip part of the grain culm is harvested as described above ( (References not listed).

[Problem that the invention seeks to solve]

However, as mentioned above, when only the tip of the grain culm is harvested, the unharvested stumps remain on the ground, which may interfere with the next plowing operation, so there is room for improvement.

Therefore, it is conceivable to install a cutting blade mechanism or the like to cut off the remaining stumps, but if the cutting blade mechanism is simply provided so that it can be raised and lowered, it is necessary to avoid contact with the ridges each time the vehicle body is moved over the ridges. This is inconvenient because it requires effort to raise the cutting blade mechanism.

An object of the present invention is to take advantage of the features of a full-culm input type combine harvester that can increase work efficiency by harvesting only the tip portion, and to provide a mechanism for cutting uncut plants with ease of operation. .

[Means for solving problems]

A feature of the present invention is that in the full-culm input type combine harvester having the above-mentioned configuration, a cutting blade mechanism for cutting the uncut stock by the cutting device is provided so as to be movable up and down, and when the cutting section rises above a predetermined level, the The mechanism is provided with an elevating mechanism that raises the blade mechanism to a retracted position where it can avoid contact with the ridge, and its functions and effects are as follows.

[Effect]

During reaping work, even if the reaping device is set to a high level that only harvests the tip of the planted grain culm, the cutting blade mechanism can cut off the remaining stumps, and the system can cut off the remaining stumps after the reaping work is finished. When the reaping part is raised to a relatively high predetermined level to avoid contact with the ridge, such as when going over a ridge, the lifting mechanism causes the cutting blade mechanism to be retracted to the extent that it can avoid contact with the ridge. He will be forced to ascend to his position.

〔Effect of the invention〕

Therefore, although the cutting blade mechanism cuts off the remaining stumps, making it easier to carry out the next plowing operation, when the reaping section equipped with the reaping device rises to a predetermined level, the reaping device automatically cuts off the remaining stumps. Since the cutting blade mechanism that cuts the remaining plants is retracted and raised, it eliminates the need for special operations even when going over ridges, improving operability.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Fig. 6, a reaping section B is connected to the front part of a car body A that is equipped with a threshing device 1 and a grain tank 2 and runs on a pair of left and right crawler traveling devices 3, so that it can be raised and lowered, and all culms are fed. Configure type combine.

As shown in the figure, the reaping section B includes a reel 4 that scrapes the planted grain culm K, a clipper-type reaping device 5 that cuts the planted grain culm K, and a grain culm from the reaping device 5.
A conveyor 6 that sends K ₁ backwards, an auger 7 that brings the grain culm from the conveyor 6 to approximately the left and right center of the reaping section B, and a supply device that sends the grain culm from the auger 7 to the handling chamber 1a of the threshing device 1. It consists of 8.

The supply device 8 also includes front and rear wheels 8a, 8b and an endless band 8c wound around the front and rear wheels 8a, 8b.
The power from the running vehicle body A is transferred to the rear wheel body 8b.
At the same time, this power is transmitted to the support shaft 9 of the wheel body 8a via the front wheel body 8a, and the power transmitted to the support shaft 9 also drives the reel 4 and the conveyor. 6. The auger 7 is driven;
Further, a drive system (not shown) is configured so that the reaping device 5 is driven back and forth.

Also, the support shaft 10 of the rear wheel body 8b of the supply device 8
, both ends of which are freely supported by the traveling vehicle body A, and the reaping portion B is rotated around the axis P of the support shaft 10 by the operation of a hydraulic cylinder 11 disposed between the traveling vehicle body A and the reaping device 5. It is configured to swing up and down.

This combine harvester improves the throughput of the threshing device 1 by cutting only the tip of the planted grain culm K, and also has a cutting blade mechanism for cutting the unharvested stock K ₂ as close to the ground level as possible. is the reaping part B
It is set in.

That is, as shown in FIG. 1, a frame 13 that is vertically swingable is extended rearward from the lower surface of the reaping part B via a left-right pivot shaft 12, and the frame 13 is swingable. The clipper-type cutting blade mechanism 14 is attached to the movable end, and the cutting blade mechanism 14 swings up and down as an arm 15 attached to the end of the pivot shaft 12 is driven and operated by a hydraulic cylinder 16.

Further, as shown in FIGS. 4 and 5, a potentiometer 17 is provided on the pivot axis P of the reaping section B, so that the ground level of the reaping section B can be detected from the swing angle of the reaping section B. In addition, a potentiometer 18 is provided at the end of the pivot shaft 12 of the cutting blade mechanism 14, so that the relative distance of the cutting blade mechanism 14 with respect to the reaping part B can be detected from the amount of rotation of the pivot shaft 12. As shown in FIG. The hydraulic cylinder 16 is configured to be driven by the valve 20.

The control device 19 operates to drive the hydraulic cylinder 16 in order to bring the cutting blade mechanism 14 closer to the ground G based on the ground level of the reaping section B, so that the uncut plants K ₂ are at a level close to the ground G. It's becoming disconnected.

Further, as shown in FIG. 2, an input system is formed so that a signal from a level setter 21 for setting the height of the reaping section B above the ground is input to the control device 19,
Further, when harvesting is performed by adjusting the height of the cutting section B above the ground using the level setting device 21, the control device 19 operates to maintain the height of the cutting blade mechanism 14 above the ground at a constant level.

Then, when the reaping part B is raised to a relatively high level, as in the case of moving the vehicle body A over a ridge, the control device 19 automatically raises the cutting blade mechanism 14 to the retracted position to remove the ridge. and the cutting blade mechanism 14 are set so as not to come into contact with each other.

[Another Embodiment] In addition to the embodiments described above, the present invention can also connect the cutting blade mechanism to the vehicle body via an arm or the like so as to be able to move up and down, or the lifting system can be configured with an electric motor. It is also possible to implement.

[Brief explanation of the drawing]

The drawings show an embodiment of the full culm input type combine harvester according to the present invention, FIG. 1 is a side view showing the operation of the reaping pre-processing section and the cutting blade mechanism, and FIG. 2 is a block diagram showing the lifting and lowering operation system of the cutting blade mechanism. Figure 3 is a graph showing the operation of the reaping pre-processing section and the cutting blade mechanism, Fig. 4 is a plan view showing the level detection structure of the cutting pre-processing section, and Fig. 5 shows the level detection structure of the cutting blade mechanism. The plan view and FIG. 6 are side views showing the front part of the full culm input type combine harvester. DESCRIPTION OF SYMBOLS 1... Threshing device, 5... Reaping device, 8... Feeding device, 14... Cutting blade mechanism, A... Traveling vehicle body, B...
...Reaping section, C... Lifting mechanism.

Claims (1)

[Claims] 1. A reaping unit B consisting of a reaping device 5 for cutting the planted grain culms and a supply device 8 for feeding the reaped grain culms to the threshing device 1 is connected to the front part of the traveling vehicle body A equipped with the threshing device 1 so as to be able to move up and down. It is a full culm input type combine harvester, and is provided with a cutting blade mechanism 14 that can be raised and lowered to cut off the stock left uncut by the reaping device 5, and when the cutting section 3 rises above a predetermined level, the cutting blade mechanism 14 This is a full-culm input type combine harvester equipped with a lifting mechanism C that raises the culm to a retracted position that can avoid contact with the ridge.