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combine harvester

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

Active Publication Date: 2015-11-25
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0087] Hereinafter, the present invention will be described in detail based on the drawings showing the combine harvester according to the first embodiment. figure 1 It is a perspective view of the appearance of the combine harvester.

[0088] In the figure, 1 denotes a running crawler, and an organism 9 is provided on the upper side of the running crawler 1. A threshing device 2 is provided above the body 9. A cutting part 3 is provided on the front side of the threshing device 2. The cutting part 3 has a grass dividing plate 3a for dividing grain stalks and non-cutting grain stalks, a cutter 3b for cutting the grain stalks, and pulling up the stalks. 的拉起装置 3c. On the right side of the threshing device 2 is provided a grain box 4 for accommodating grains, and on the left portion of the threshing device 2 is provided a feed chain 5 that is long in the front-rear direction of conveying the grain stalks.

[0089] A clamping member 6 for clamping the grain stalk is provided on the up...

Embodiment approach 2

[0170] Hereinafter, the present invention will be described in detail based on the drawings showing the combine harvester according to the second embodiment. Picture 12 It is an example of a graph showing the relationship between the detection value of the input port sensor 300 and the detection value of the pickup sensor 51. Picture 12 A is a graph showing the relationship between time and the detection value of the input port sensor 300. The detection value of the input sensor 300 indicates the amount of strain caused by the collision of grains, and is a moving average value in the predetermined number of samples. Picture 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 indicates the rotation start time and the rotation end time of one rotation of the blade plate 23b.

[0171] The CPU 100a compares the detection value input from the input port sensor 300 during P / 4 to 3P / 4 with ...

Embodiment approach 3

[0182] Hereinafter, the present invention will be described in detail based on the drawings showing the combine harvester according to the third embodiment. Figure 14 It is a longitudinal cross-sectional view schematically showing the insertion port sensor 300. Figure 14 A represents the input port sensor 300 at the appropriate position, Figure 14 B represents the insertion port sensor 300 at a position shifted from the appropriate position.

[0183] The input port sensor 300 has a sensor body 301 (fixed part) 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 housed in the housing. The back surface of the housing of the sensor main body 301 is fixed to the supporting member 310 by a plurality of screws 311. In addition, the sensor body 301 may be any structure capable of detecting the impact value of the collided grain. For example, instead of strain gauges, piezoelectric ...

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PUM

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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] The present invention relates to a combine harvester capable of accurately detecting the amount of collected grains. Background technique [0002] In the case of harvesting operations in farmland, a combine harvester that performs harvesting, threshing, and recovery of grain stalks is often used. The combine harvester travels in the farmland through the crawler. During the driving process, the cutting knife is used to cut the grain stalks, and the harvested grain stalks are transported to the threshing drum and threshed. In addition, the chaff sieve arranged below the threshing drum is used to sort the stalks and grains separated from the stalks, so that the sorted grains are leaked from the chaffs, and the grains are recovered by a screw conveyor. box. [0003] A blade plate for feeding grains into the grain box is attached to the front end of the screw conveyor, and a grain amount detection sensor that detects the amount of grains fed through the blade pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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