JPS6028187Y2 - combine - Google Patents

Description

[Detailed Description of the Invention] The present invention is provided with a device that merges and conveys the husks from a plurality of pulling and reaping paths to the pinching threshing section, and based on the detection of a change in the passing position of the husks with respect to the culm length detection sensor, the threshing section A handling depth adjustment mechanism is provided to automatically maintain the handling depth within a set range, and the handling depth is automatically and reversibly adjusted based on the detection of the presence of cut husk culm supplied to the threshing section. The present invention relates to a combine harvester equipped with a sensor for detecting the presence or absence of a culm that operates the mechanism.

Conventionally, the culm length detection sensor and the culm presence/absence detection sensor for operating the handling depth adjustment mechanism have been installed midway through conveyance in a combined conveyance device, but the tips of the culms tend to sag, making it difficult to obtain an appropriate culm length. There is a problem in that the treatment depth is not detected and, moreover, the handling depth is adjusted based on the inappropriate detected culm length.

Therefore, in order to detect the appropriate culm length and adjust the handling depth, it is conceivable to install both sensors near the completion of one lifting reaping route, but it is possible to install both sensors near the completion of lifting of one pulling reaping route, but it is possible to reap multiple rows of culms as described above. With combine harvesters, when the number of reaped rows is small, such as when reaping a fraction of rows at the edge of a rice field, the culm does not pass through the reaping path equipped with a sensor, and the handling depth adjustment mechanism does not work at all. If it is not operated, problems such as unhandled items will occur, reducing harvest efficiency.

In view of the above points, the present invention detects the appropriate culm length by arranging both sensors in a rational manner, and also prevents inconveniences in adjusting the handling depth even in special cases such as reaping fractional bunches. The aim is to prevent this from happening.

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

A lifting device 1 that raises four rows of planted culms in the field while passing through the corresponding lifting and reaping route R, a reaping device 2 that reaps the raised culms, and a horizontal culm that moves the reaped culms horizontally. Conveyance device 3
The vertical conveyance device 4 conveys the harvested husks to one side of the machine and merges them, and the vertical conveyance device 4 conveys the merged cut husks toward the rear and upwards, changing the posture to a nearly horizontal position and delivering them to the feed chain 5. A device 6, a clamping threshing section 7 that threshes the harvested husk while being held and conveyed by the feed chain 5, and a waste straw processing section 8 that discharges the threshing straw into the field with or without shredding it. , are sequentially installed on a traveling trolley which is equipped with a crawler traveling device 9 and a control section 10, so that the planted culms in the field can be continuously harvested and processed as it travels. He is setting up a combine harvester.

The vertical conveyance device 4 is pivotally connected to the reaping frame 11 around its rear axis so as to be swingable in the culm direction of the grain culm delivered from the horizontal conveyance device 3, and A hydraulic cylinder 12 is interposed over the frame 11, and by operating the hydraulic cylinder 12, the position of holding the stock end with respect to the shell culm delivered from the horizontal conveyance device 3 is changed, and the insertion length of the shell culm into the threshing section 7 is adjusted. That is, a handling depth adjustment mechanism 13 is configured to adjust the so-called handling depth.

Culm length detection is performed at a predetermined interval in the direction of the culm in order to act on the raised culm near the completion of the raising of the raising reaping path R1 on one end side of the rear part of the lateral side of the pulling device 1. Sensor S1... is arranged.

At the end of the conveyance of the horizontal conveyance device 3, at the meeting point of the cut husk,
A shell culm presence/absence detection sensor S2 is arranged to act on the conveyed shell culm.

Both the sensors S1...S2 are electrically connected to the electromagnetic valve V for the hydraulic cylinder 12, and the handling depth adjustment mechanism 13 is automatically adjusted based on the detection of the presence or absence of a culm by the culm presence/absence detection sensor S2. In addition to being reversibly activated, the processing depth in the threshing section 7 is automatically maintained within a set range based on the detection of a change in the passage position of the culm by the culm length detection sensor S1. be.

As a result of the above configuration, for example, when reaping three rows of planted culms remaining at the edge of a rice field as shown in FIG. Even if it cannot be passed through, the handling depth adjustment mechanism 11
The system automatically adjusts to the maximum handling depth when it determines that the culm is in a short culm state, ensuring that no unhandled culms are left behind and that the culm is harvested reliably.

At this time, since a small amount of bundles is supplied to the threshing section 7, even if the maximum handling depth is reached, the load on the threshing section 7 will not be increased more than necessary.

Note that the culm presence/absence detection sensor S2 is not limited to the merging point of the merging conveyance device 6, and may be provided on the downstream side of the merging point as long as it can act regardless of the number of reaped rows.

It is better to provide the culm length detection sensor S1 at one end of the pulling device 1, on the side where the body protrudes less than the pulling device 1, so that it can easily follow the uncut culm. The position may be provided at the other end of the lifting device 1 or at the center.

In summary, the present invention, in the officially registered combine harvester, disposes the culm length detection sensor S1... to act on the culm near the completion of hoisting in one of the hoisting and reaping routes R□, and detects whether the culm is present or not. It is characterized in that the detection sensor S2 is arranged at the merging point of the conveying device 6 or on the downstream side thereof.

In other words, by installing the culm length detection sensor S□... near the completion of the raising of one raising and reaping route R, it becomes possible to detect the appropriate culm length with the tip of the ear stretched out.
Furthermore, by providing the culm presence/absence detection sensor S2 at the confluence point of the conveying device 6 or on the downstream side thereof, where the cut culms always act, even in the case of reaping end culms, the inserted culm length detection sensor During reaping work in which the reaped stem culm does not pass through the reaping route R1 of the puller 6 provided with S1, it is determined that the culm length detection sensor S1... has detected a short culm, and the handling depth adjustment mechanism 13 sets the handling depth adjustment mechanism 13 to the maximum depth. Since the grains are reliably harvested without leaving any unhandled items, and because the number of rows less than the set number is harvested at this time, the amount of bundles supplied to the threshing section 7 is small, and there is no risk of increasing the threshing load, and the overall As,
By rationally arranging the culm length detection sensor S1... and the culm presence/absence detection sensor S2 for operating the handling depth adjustment mechanism 13, it is possible to detect an appropriate culm length and perform edge-based reaping with a small number of reaping rows. It has also been possible to operate the machine rationally for each task, without creating any leftovers, and to avoid a decline in harvest efficiency.

[Brief explanation of drawings]

The drawings illustrate embodiments of the combine harvester according to the present invention,
FIG. 1 is an overall side view, FIG. 2 is a plan view of essential parts, and FIG. 3 is a schematic plan view showing the operating state. 6... Merging conveyance device 7... Clamping threshing section, 13... Handling depth adjustment mechanism, R, R□...
. . . Pulling reaping path, Sl . . . Culm length detection sensor, S2 . . . Culm presence/absence detection sensor.

Claims (1)

[Scope of utility model registration request] A device 6 is provided to converge and convey the culms from the plurality of lifting reaping paths R1, R, etc. to the clamping and threshing section 7, and a culm length detection sensor S is provided.
A handling depth adjustment mechanism (■) is provided to automatically maintain the handling depth in the threshing section 7 within a set range based on the detection of a change in the passing position of the culm relative to the threshing section 7. A combine harvester is provided with a culm presence/absence detection sensor S2 that automatically and reversibly operates the handling depth adjustment mechanism U based on the detection of the presence of a reaped culm, wherein the culm length detection sensor S is one It is characterized in that it is arranged to act on the culm near the completion of the lifting in the lifting reaping route R□, and the sensor S2 for detecting the presence or absence of the culm is arranged at the merging point of the conveying device 6 or on the downstream side thereof. A combine harvester.