JPS6016255Y2 - combine - Google Patents

Description

[Detailed description of the invention] This invention relates to a combine harvester that automatically controls steering by detecting the lateral deviation between the culm to be harvested and the machine body using a sensor, and divides the planted culm into the cutting path. The present invention aims to provide a combine harvester whose steering can be controlled advantageously by devising the structure of the guiding divider and the arrangement of the sensors.

Embodiments of the present invention will be described in detail below with reference to illustrative drawings.

FIG. 1 shows a pair of left and right crawler traveling devices 1a.

A combine harvester is shown in which a reaping section is connected to the front part of the machine, which consists of a threshing device 1b and a threshing device 2, etc., and as the combine harvester advances, the reaping section is configured to reap planted culms as described below. .

In other words, there are five dividers 3 and 3 in which the planted culm is separated into the dividing wall.
. . . are juxtaposed in a state of being supported by the tips of the support frames 4 . There are four cutting paths a, b, and c in the corresponding places in between.

d is formed.

(Refer to Figure 2) And then, the divider 3...
The culms that are introduced into each route a are guided by the lifting device 5, and are pulled up into a standing position, and the base ends of the culms that have been pulled up are The reaping device 6 cuts the husks, and the harvested husk culms are combined and conveyed to the feed chain 8 of the rear threshing device 2 by the vertical conveyance mechanism 7.

Next, a mechanism for automatically steering and controlling the aircraft by following the planted culm will be explained.

That is, on both sides of the introduction path a, which is located on the most uncut side of the paths a (the leftmost one in FIG. A pair of left and right first and second sensors 9 and 10 for moving row mowing are provided so as to be elastically returnable, and are located on one side of the introduction path d located on the farthest mowing side (the rightmost one in Fig. 2). A third sensor 11 for horizontal mowing, which swings rearward upon contact with the introduced culm, is provided at the back of the pulling device 5 so as to be elastically returnable.

Further, a first switch S is provided at the base of the first sensor 9, and the first switch S is operated when the sensor 9 is swung backwards, and a first switch S is provided at the base of the second sensor 10, which allows the sensor 10 to freely return. The second button which is operated in contact when in the state
A switch B2 and a third switch S3 that comes into contact with each other when the sensor 10 is swung greatly backward are provided, and the base of the third sensor 11 is also provided with the second and third switches S2. Fourth and fifth switches S4 operated in the same manner as B3
．． B5 are arranged respectively.

Although not illustrated, each of the switches S1... is connected to a control section of a drive mechanism that operates the steering clutches of the pair of crawler traveling devices 1a, lb on and off, and the switches S1... The steering is automatically controlled as follows based on electric signals from the engine.

That is, when the aircraft travels along the planted culm row as shown in FIG. 4A, the first and second sensors 9, 10
Steering control is performed based on the detection result of , and both sensors 9 and 10 are in one of the states shown in FIG.

A1...If the culm is located approximately at the center of path a and does not touch both the left and right sensors 9, 10, switch S1. B3 is OFF and switch S2 is ON, and in this detection state, the vehicle is in a straight running state.

A2...When the culm moves slightly to the right with respect to the path a and the second sensor 10 swings slightly, the switch S1. B
2. All B3 are turned OFF, and in this detection state, A
As in case 1, the vehicle is in a straight running state.

Hmm...When the culm deviates significantly to the right with respect to the path a and causes the second sensor 10 to swing greatly, the switch S
1. B2 is turned OFF and switch S3 is turned ON, and in this detection state, the aircraft rotates to the right.

A,... When the culm deviates to the left with respect to path a and swings the first sensor 9, switch S1. B2 is O
N, switch S3 is turned OFF, and the aircraft is moved to the left in this detection state.

Furthermore, as shown in FIG. 4B, when the aircraft travels in a direction substantially perpendicular to the row of planted culms, multiple rows of grain culms are introduced into route a, and the third sensor Automatic steering control is carried out based on the detection result of the third sensor 11, and the third sensor 11 is in one of the states of B1 and B2-83 in FIG.

B,...When the culm on the most cut side is located in the center of path d and the third sensor 11 is slightly swung,
Switch S1 is ON, switch S2 . B4. S, is OF
(The switch S3 may be either ON or OFF.

), in this detection state, the vehicle is in a straight running state.

B2...When the grain culm on the most cut side deviates to the right with respect to the path d and the third sensor 11 swings greatly, the switch S1. B2 is ON, switch S2. B4 is OF
(The switch S2 may be either ON or OFF.

), in this detection state, the aircraft rotates to the right.

B3... When the culm on the most cut side deviates to the left with respect to path d and comes off from the third sensor 11, switches S□ and S4 are turned on, and switch 32. B5 is turned OFF (switch S3 may be either ON or OFF).

), in this detection state, the aircraft will be accompanied to the left.

As explained above, during row mowing, which involves cutting along the rows of planted culms, the steering is controlled based on the detection results of the first and second sensors 9.10, and the When cutting horizontally in a direction perpendicular to the
Steering control will be performed based on the detection results of the sensor 11, and the switching of this control mode will be automatic depending on whether one or two culms enter the introduction path a. will be selected accordingly.

In addition, each of the dividers 3... is pivotally connected to the vertical axis X so as to be able to swing horizontally, as shown in FIG. By penetrating and fixing the bolt 13 across the fixed second connecting plate 12b, it is configured to be freely fixed in a desired swinging posture, thereby changing the position of the sharp tip of each divider 3. is configured to be freely displaceable in the lateral direction.

Among the dividers 3, the dividers 3 are located on both sides of the introduction path a that is located on the most uncut side.
, 3, the first and second sensors 9 and 10 and the first, second and third switches S□, B2 . B3 is attached.

As described above, if the tip of the divider 3 is configured so that its position can be adjusted freely, even if the row spacing is different in size during the above-mentioned row cutting, each path a... This means that the corresponding planted culm row can be adjusted so as to be introduced at the center position between the tips of each divider 3, and the culm can be pushed down with the divider 3. This allows for accurate reaping work with fewer troubles such as the divider 3 being stowed away or the divider 3 being stuck into the plant.

In the embodiment, the dividers 3 are oscillated laterally, but the present invention can be similarly implemented in a form in which the dividers 3 are slid in a straight line in the lateral direction.

In addition, in the embodiment, all the dividers 3... are adjusted, but as described in the embodiment, in normal reaping work, the machine travels with the path a on the side closest to the machine as a reference. Among the dividers 3.3 corresponding to this path a, there is no need to specifically adjust the displacement of the divider 3 on the outside of the fuselage, so only the intermediate divider 3... is implemented. You may.

In summary, the combine harvester according to the present invention is equipped with a feed chain on the lateral outer side of the machine body for supplying reaped husks to the threshing device, and a pair of left and right strips are provided on one side of the feed chain on one side of the harvesting direction. A sensor for mowing is provided, a sensor for horizontal mowing is provided on the other side of the reaping direction opposite to this, the sensor for row mowing is attached to a divider, and the sensor for mowing is attached to the divider. The present invention is characterized in that the position of the divider located on the inside of the fuselage can be changed in the width direction of the fuselage, so that the following effects are achieved.

In other words, when reaping and harvesting work involves using a sensor for row cutting and a sensor for horizontal cutting to cut the husk in a circular manner, the machine is moved with the feed chain side facing the uncut land. Go.

At this time, in the combine harvester of the present invention, the sensor for horizontal mowing is placed on the opposite side of the feed chain, that is, on the side closest to the cut field in the cutting direction, so that it is possible to cut the culms that are not neatly lined up. When cutting horizontally, you can reliably trace the outer culm without leaving anything uncut.

In addition, on the contrary, the sensor for row mowing is placed closest to the uncut field, so even in the final stage of mowing in the field, the row culms at the edge of the ridge can be reliably traced and harvested. There are advantages to being able to travel.

Moreover, when performing row mowing work, even if the row spacing of the grain culms located on the left and right sides of the grain culm located on the left and right sides of the grain culm at the center is different, the grain culm for detection can always be properly centered between the dividers. In addition, when the distance between the left and right rows is extremely narrow, it is possible to perform good reaping work without detecting two rows of culms.

[Brief explanation of drawings]

The drawings show an embodiment of the combine harvester according to the present invention, and FIG. 1 is a side view of the combine, FIG. 2 is a schematic plan view showing the sensor mounting part, and FIG. 3 is A1. A2゜A,, A4. B
□, B2. B3 is a schematic diagram showing the sensor detection state;
4A and 4B are schematic plan views showing the reaping form, and FIG. 5 is a perspective view of the divider mounting structure.

Claims (1)

[Scope of utility model registration request] In a combine harvester equipped with a feed chain 8 for supplying reaped husks to the threshing device 2 on the lateral outer side of the machine body, a pair of left and right row cutting sensors 9, 10 are installed on one side of the feed chain 8 on one side of the reaping direction. A sensor 11 for horizontal cutting is provided on the other side of the reaping direction opposite to this, and the sensors 9, 10 for row cutting are attached to the dividers 3, 3, and the sensors 9, 10 for row cutting are attached to the dividers 3, 3. The combine harvester is characterized in that, among the dividers 3, 3 provided with 10, the divider 3 located on the inner side of the machine body is configured to be able to change its position in the width direction of the machine body.