JPS5834987Y2 - reaping harvester - Google Patents

Description

[Detailed explanation of the invention] Generally, in a reaping harvester, when the machine reaches the end of one stroke and there are no planted stem culms left, the pre-reaping processing section is brought into contact with the ground, stump, etc. for the next round. Moreover, when entering the stem culm group again after going around, the pre-reaping processing section is lowered to the required cutting height position.

In order to save labor by promoting automation of the lowering operation of the pre-harvesting processing section mentioned above, based on the presence/absence detection of planted stem culms, a sensor installed in front of the tip of the pre-harvesting processing section detects the presence of planted stem culms. A reaping harvester has been proposed in which the reaping pre-processing section is automatically controlled to lower to a set height for reaping work.

In the case of this structure, since the stem culm presence/absence detection sensor is provided to protrude ahead of the tip of the pretreatment part, -
This system can quickly detect the presence of stem culms and lower the pre-reaping processing unit to the desired cutting height position before entering the planted stem culm group, but it is possible to quickly detect the presence of stem culms and lower the pre-harvesting unit to the desired cutting height position before entering the planted stem culm group. There was a problem with the sensor protruding toward the front getting in the way when storing it inside.

The present invention was made keeping in mind the above actual situation,
A planted stem culm presence/absence detection sensor connected to the traveling machine is disposed at a position forward of the tip of the pre-reaping treatment section, and based on the presence/absence detection of the planted stem culm by the planted stem culm presence/absence detection sensor, the pre-reaping treatment is performed. The sensor is configured to automatically lower the section to a set height for reaping work, and the sensor is retracted to the rear from the tip of the pre-reaping section as the pre-reaping section is raised above a certain height. It is characterized by being

In other words, since the sensor for detecting the presence or absence of planted stem culms is not provided in the pre-harvesting processing section, but is provided on the traveling machine side, even if the pre-harvesting processing section is raised, the sensor for detecting the presence or absence of planted stem culms does not detect the presence or absence of the planted stem culm. By detecting this, the pre-reaping processing section can be automatically lowered at a predetermined cutting height.
Focusing on the fact that when driving on the road, etc., it is raised sufficiently higher than during reaping work, if the reaping pre-processing section is raised above a certain height, the sensor can be retracted to the rear in conjunction with this. As a result, the vehicle can now be driven on the road and stored without the above problems.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

The figure shows a pulling device 3 for pulling up multiple rows of planted stem culms into an upright position, and a pulling device 3 for pulling up multiple rows of planted stem culms into an upright position. A reaping device 4 that cuts off the base end of the culm, an auxiliary conveyance device 5 that conveys the cut culms to one side and merges them, and directs the merged culms to the feed chain 6 of the rear threshing device 2. This figure shows a combine harvester that is connected and equipped with a reaping pre-processing section 8 consisting of a vertical conveyance device 7 and the like that conveys the vertical conveyance.

Next, a mechanism for automatically controlling the elevation of the reaping pre-processing section 8 based on the result of detecting the presence or absence of planted stems and culms will be explained.

That is, an elevating frame 9 that can freely swing up and down about a fulcrum P is provided with respect to the traveling machine body, and the reaping pretreatment section 8 is supported on this frame 9, and the space between the frame 9 and the traveling machine body is A hydraulic cylinder 10 is interposed between the buttons and the reaping pre-processing section 8 is moved up and down by the expansion and contraction operation of the cylinder 10.

A sensor 11 for detecting the presence or absence of planted stems and culms is provided ahead of the tip of the pre-reaping processing section 8 .

This sensor 1F is pivotally supported by a sensor box 13 supported by a support frame 12 extending from the traveling aircraft body so as to be swingable back and forth, and is elastically biased into a position protruding in the lateral direction of the aircraft body. It is configured to detect the absence of a stem culm by its protruding posture, and to detect the presence of a stem culm by its backward swinging.

A switch mechanism (not shown) is installed in the box to electrically detect whether the sensor 11 is in the protruding position or in the backward swinging position.

When the machine reaches the end of one stroke and the absence of a stem culm is detected, the hydraulic cylinder 10 is extended based on a signal from the switch mechanism, and the reaping pre-processing section 8 is moved to an appropriate height set in advance. When the accompanying aircraft is about to enter the culm group again and the presence of the culm is detected, the hydraulic cylinder 10 is operated to contract based on the signal from the switch mechanism. The pre-reaping treatment section 8 is configured to be automatically lowered at a preset cutting height position 1.

Further, the sensor 11 is configured to be displaced back and forth in conjunction with the elevation and descent of the preprocessing section 8.

That is, the support frame 12 is fitted into a first support frame 12a fixed to the traveling machine body side so as to be able to move forward and backward in the front and rear directions, and is elastically biased toward the projecting side. and a second support frame 12b.

The second support frame 12 is interlockingly connected to an arm 14 erected from the pivot base of the lifting frame 9 via a release wire 15, and has an appropriate range of flexibility for the arm 14 due to the flexibility of the elongated hole 16. is allowed to exist.

Then, within the range where the lifting frame 9 (reaping pre-processing section 8) is controlled to rise and fall by the above-mentioned automatic control,
Due to the flexibility, the second support frame 12b is maintained in a protruding state, and the sensor 11 is maintained in front of the tip of the pre-processing section 8, so that when traveling on the road, etc., the elevating frame 9 is extended to near the stroke end. When raised, the second support frame 12b is forcibly retracted backward against the urging force, and the sensor 11 is reversibly displaced backward from the tip of the preprocessing section 8.

In the embodiment, the preprocessing section 8 is automatically controlled to ascend when the sensor 11 detects the presence of a stem culm, but a reaping/harvesting machine that only automatically controls the preprocessing section 8 to descend when the presence of a stem culm is detected is also applicable. The merits may be applied to.

Further, in the embodiment, the sensor 11 is automatically displaced forward when the pre-processing section 8 is lowered, but the sensor 11 is only automatically displaced backward, and the forward displacement is performed at an appropriate time. It may also be configured to be performed manually.

[Brief explanation of drawings]

The drawings show an embodiment of the reaping and harvesting machine according to the present invention, with FIG. 1 being a side view of the front part of the combine, and FIG. 2 being a plan view thereof. 8... Reaping pre-processing section, 11... Sensor for detecting the presence or absence of planted stems and culms.

Claims (1)

[Scope of utility model registration request] A planted stem culm presence/absence detection sensor 11 connected to the traveling machine is disposed at a position forward of the tip of the reaping pre-processing section 8, and based on the presence/absence detection of the planted stem culm by the planted stem culm presence/absence detection sensor 11, the above-mentioned The pre-reaping treatment section 8 is configured to be automatically lowered to a set height for reaping work, and as the pre-reaping treatment section 8 is raised above a certain height, the sensor 11 is set to the tip of the pre-reaping treatment section 8. A reaping/harvesting machine characterized by being configured to retreat further to the rear.