JPH0595215U - Arrangement structure of direction sensor in reaper - Google Patents

Abstract

(57) [Abstract] [Purpose] With a wide divider interval at the end of the cut land, the plant contact lever protruding inward from the direction sensor is located in the grain culm introduction route without further extension. This prevents a decrease in detection accuracy and interference with the grain-scraping device. [Structure] The cut-ground side direction sensor 13 is arranged in front of the uncut-ground side direction sensor 12 and inside the divider center position of the cut-ground side side end portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an arrangement structure of a direction sensor in a harvester such as a combine harvester.

[0002]

[Problems to be Solved by Prior Art and Invention]

 Generally, in this type of combine harvester, etc., the swing angle of the root contact lever protruding inward is detected in the grain culm introduction path at the end of the cut ground and the end of the uncut ground. There is a configuration in which each direction sensor is arranged and the traveling direction of the airframe is automatically controlled based on the detection of the direction sensor. By the way, in such a reaper, if the culm is left uncut, a large grain loss occurs.Therefore, it is necessary to prevent uncut areas as much as possible. It has been proposed to widen the grain culm introduction path at the end of the already-cutted land by displacing it. However, in the past, since the direction sensor on the cut-off side was placed at the center position of the divider, when the divider on the cut-side end is displaced outward as described above, the contact portion of the stock contact lever However, there is a risk that it will be out of the grain culm introduction route and accurate detection will not be possible. Therefore, it is conceivable to extend the stock source contact lever, but in this case, because the swing angle of the stock source contact lever becomes smaller and the detection accuracy decreases, the extension part of the stock source contact lever may move backward. It cannot be used because of new drawbacks such as interference with the grain-scraping device.

[0003]

[Means for Solving the Problems]

 The present invention was devised with the aim of providing an arrangement structure of a direction sensor in a reaper that can eliminate these drawbacks in view of the above-mentioned circumstances, and is arranged in parallel at the front end of the machine body. A plurality of grain culm introduction routes are formed between the dividers to introduce the grain culm while raising the tip side and raising it with the body, and among these grain culm introduction routes, the grain culm introduction route at the end of the already cut land is provided. Based on the swing angle of the stock source contact lever that protrudes inward in the grain culm introduction path at the end of the previously cut ground and the end of the uncut ground, When arranging the direction sensors for controlling the traveling direction of the aircraft, the direction sensor on the side of the cut ground is located in front of the direction sensor on the side of the uncut ground and at the end of the side of the cut ground. It is placed at a position inside the center position. The one in which the features. With this configuration, the present invention makes it possible to position the stock source contact lever in the grain culm introduction path without the inconvenience of lowering detection accuracy and interference with the grain culm scraping device. is there.

[0004]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a combine traveling machine, and the traveling machine 1 includes a pretreatment unit 2 for cutting grain culms, a threshing unit 3 for threshing the harvested grain culms, and a discharged threshing culm. A post-processing unit 4 for processing, a crawler-type running unit 5, and the like are provided, but the basic configurations of these are all the same as conventional ones.

From the grain culm introduction route between the dividers 6 arranged in parallel at the front end of the machine body at a predetermined interval in order to divide the grain culm into a number of cutting lines, the pretreatment unit 2 A raising device 7 for raising the introduced grain culm, a cutting blade 8 for cutting the root of the raised grain culm, a scraping device 9 located above the cutting blade 8 for scraping the grain culm, A horizontal transport device 10 for merging the grain culm scraped from the scraping device 9 on the left end side of the pretreatment unit 2, and a grain culm for transporting the merged grain culm to the threshing unit 3 while changing the vertical posture to a horizontal posture. A conveyor device 11 and the like are provided, but among the dividers 6, the intervals between the dividers 6, 6 for weeding the row at the end of the already-cutted land are wider than those of other dividers in order to reduce uncut residue. It is set.

Further, 12 and 13 are a pair of left and right direction sensors arranged in the grain culm introduction path at the uncut land side end and the already cut land side end, respectively. Based on the detection of the swing angle of the stock source contact levers 12a, 13a, stock stock contact levers 12a, 13a projecting inward to come in contact with the stock section of the grain culm are provided to be swingable back and forth. It is designed to detect the aircraft position with respect to the row.

The directional sensor 12 on the uncut ground side is a raising stay provided on the pretreatment frame 14 so as to be located on the center line of the divider 6 behind the divider 6 at the end on the uncut ground side. The direction sensor 13 on the side of the cut ground is arranged in front of the direction sensor 12 on the side of the uncut ground, and at a position inside the divider center position of the end portion on the side of the cut ground, although it is attached to 15. It is attached to the raising stay 15 accordingly. That is, as described above, when displacing the divider 6 at the end of the cut-ground side outward, the stock contact lever 13a protruding inward from the cut-side direction sensor 13 is not particularly extended. In addition to being located on the grain culm introduction path, the stock source contact lever 13a is separated from the scraping device 9 arranged at the rear as much as possible.

In the embodiment of the present invention configured as described above, the divider interval of the cut end on the side of the already cut ground is set to be wide so as to reduce the uncut residue as much as possible. Since the direction sensor 13 arranged in the grain culm introduction route of the part is arranged in front of the direction sensor 12 on the uncut ground side and inside the divider center position at the end of the cut ground side. The plant base contact lever 13a that protrudes inward from the already-cutted-side direction sensor 13 can be positioned in the grain culm introduction path without being particularly extended. Therefore, it can be avoided that the swing angle range of the stock source contact lever 13a becomes small and the detection accuracy is lowered as in the case where the stock source contact lever 13a is extended. As a result, highly accurate detection can be performed. It is possible to significantly improve the control accuracy of the automatic direction control.

Moreover, the stock-source contact lever 13a can be separated from the scraping device 9 arranged at the rear as much as possible, so that the stock-source contact lever 13a is surely prevented from interfering with the scraping device 9. This is not allowed, and the grain culm can be contacted at a stage before the rake action of the rake device 9 is performed to perform highly accurate detection.

[0010]

[Operation effect]

 In short, since the present invention is configured as described above, among the plurality of grain culm introduction routes, the grain culm introduction route at the end on the side of the already mowed ground is formed wide. Since the direction sensor provided in the grain culm introduction path at the end on the ground side is located in front of the direction sensor on the uncut land side and inside the divider center position at the end on the cut ground side. , The contact part of the stock contact lever that protrudes inward from the direction sensor can be located in the grain culm introduction path without significantly extending it, and the stock contact can be made from the scraping device arranged at the rear. The levers can be separated as much as possible. Therefore, it is possible to prevent the lever swing angle from becoming small as in the case of extending the stock contact lever, and it is possible to detect before the influence of the scraping device, and to significantly improve the detection accuracy. Although it can be measured, it is possible to surely prevent the inconvenience that the stock-source contact lever interferes with the grain-plucking device.

[Brief description of drawings]

FIG. 1 is a perspective view of a combine.

FIG. 2 is a front view of a pretreatment unit.

FIG. 3 is an internal side view of the same.

FIG. 4 is an internal plan view of the same.

FIG. 5 is a plan view of an essential part of the same showing a layout structure of left and right sensors.

FIG. 6 is an operation explanatory view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling vehicle 2 Pre-processing part 6 Divider 12 Uncut ground side direction sensor 12a Stock-source contact lever 13 Cut-ground location side sensor 13a Stock-source contact lever

Claims (1)

[Scope of utility model registration request] 1. Between the dividers arranged in parallel at the front end of the machine,
Form a plurality of grain culm introduction routes that introduce grain culms while raising the tip side and raising them with the body, and of these grain culm introduction routes, widen the grain culm introduction route at the end of the already cut land. In the reaper, the traveling direction of the machine body is set based on the swing angle of the stock contact lever protruding toward the inside in the grain culm introduction path at the end of the already-cut ground and the end of the uncut ground. When arranging the direction sensors for control respectively, the direction sensor on the side of the cut ground is located in front of the direction sensor on the side of the uncut ground and inside the divider center position of the end on the side of the cut ground. The arrangement structure of the direction sensor in the reaper, which is characterized by being arranged.