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Combine

A combine harvester and grain technology, applied in agricultural machinery and implements, threshing equipment, agriculture, etc., can solve the problems affecting the output of the grain amount detection sensor, and achieve the effect of improving the detection accuracy

Active Publication Date: 2014-05-07
YANMAR POWER TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These vibrations become disturbances that affect the output of the grain amount detection sensor

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0087] Hereinafter, this invention is demonstrated in detail based on drawing which shows the combine which concerns on Embodiment 1. FIG. figure 1 It is a three-dimensional view of the appearance of the combine harvester.

[0088] In the figure, 1 denotes a traveling crawler, and an organic body 9 is provided on the upper side of the traveling crawler 1 . A threshing device 2 is arranged above the machine body 9 . On the front side of the threshing device 2, a harvesting part 3 is provided, and the harvesting part 3 has a grass dividing board 3a for distinguishing harvested grain stems and non-harvested grain stems, a cutting knife 3b for harvesting grain stems, and a mechanism for pulling up grain stems. The pull-up device 3c. On the right side of the threshing device 2, a grain box 4 for storing grains is provided, and on the left side of the threshing device 2, a long feed chain 5 is provided along the front-back direction of conveying grain stalks.

[0089] The upper s...

Embodiment approach 2

[0170] Hereinafter, this invention is demonstrated in detail based on drawing which shows the combine which concerns on Embodiment 2. FIG. Figure 12 It is an example of the graph which shows the relationship between the detection value of the inlet sensor 300 and the detection value of the pickup sensor 51. Figure 12 A is a graph showing the relationship between time and the detection value of the inlet sensor 300 . The detection value of the inlet sensor 300 shows the strain amount by the collision of a grain, and is a moving average in the predetermined sampling number. Figure 12 B is a graph showing the relationship between time and the detection value of the pickup sensor 51 . The detection value of the pick-up sensor 51 shows the rotation start time and the rotation end time of one rotation of the blade plate 23b.

[0171] CPU100a compares the detection value input from the inlet sensor 300 in P / 4 - 3P / 4 period, and threshold-value α. Among the detected values ​​inp...

Embodiment approach 3

[0182] Hereinafter, this invention is demonstrated in detail based on drawing which shows the combine which concerns on Embodiment 3. FIG. Figure 14 It is a longitudinal cross-sectional view schematically showing the inlet sensor 300 . Figure 14 A represents the inlet sensor 300 at an appropriate position, Figure 14 B represents the inlet sensor 300 at a position shifted from the proper position.

[0183] The inlet sensor 300 has a sensor body 301 (fixed portion) provided with a strain gauge, a circuit board, and the like. The sensor main body 301 has a housing, and a strain gauge, a circuit board, and the like are accommodated in the housing. The back of the frame of the sensor main body 301 is fixed to the supporting member 310 by a plurality of screws 311 . In addition, the sensor main body 301 should just be the structure which can detect the impact value of the grain which collided. For example, instead of strain gauges, piezoelectric elements may be used.

[0184...

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Abstract

The objective of the present invention is to provide a combine that can eliminate the effect of disturbance from grain quantity detection values, even during a period of contact in which grain contacts a sensor. The impact force detected by a discharging opening sensor is compared with a pre-set threshold (a). On the basis of the comparison results, it is determined whether or not the impact force is included in the subject of calculation. For example, if the impact force is less than the threshold (a), the impact force is removed from being a subject of calculation. As a result, particularly when a small quantity of grain is being conveyed (for example, in the case of harvesting work being performed at a low speed or the case of a hand-threshing mode), it is possible to improve the calculation precision of the amount of grain. If the amount of grain conveyed is small, the effect of disturbance on the calculated amount of grain is larger than when the amount of grain conveyed is large.

Description

technical field [0001] This invention relates to the combine harvester which can detect the quantity of the grain collected|recovered with high precision. Background technique [0002] When performing harvesting work in a farmland, the combine harvester which cuts off a grain stalk, threshes, and collects a grain is used in many cases. The combine harvester travels on the farmland on the crawler belt, cuts the grain stalks with the cutting knife during the driving process, and transports the cut grain stalks to the threshing cylinder for threshing. In addition, the stalks and grains separated from the grain stalks are sorted by using the chaff sieve arranged under the threshing cylinder, and the sorted grains are sieved from the chaff, and the grains are recovered by the screw conveyor. box. [0003] The vane plate for injecting grain into a grain tank is attached to the front-end|tip part of a screw conveyor, and the grain amount detection sensor which detects the grain q...

Claims

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Application Information

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IPC IPC(8): A01F12/50A01F12/46
CPCA01F12/46A01F12/50
Inventor 宫本宗德庄司浩一金谷一辉
Owner YANMAR POWER TECHNOLOGY CO LTD
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