JP2008301730A - Cutting and discharging apparatus of waste culm cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems, wherein cut waste culms are frequently blown away with a diffusion fan so as to diffuse to the side of the ear tip part and thereby dropped and guided because a dropping position of the cut waste culms is biased and concentrated on the side of the waste culm plant foot part in a reaped site with a combine harvester in a waste culm cutter in such a state wherein a cutter shaft with a plurality of disks arranged therein is installed toward the transverse direction in a threshing waste culm part of the combine harvester, however, in a state where the discharge wind direction of the cut waste culms is disordered by opposing to the air blasting force with the diffusion fan against the rotation of the disks, blowing force by a raking out fan, and the like, with a result that it is difficult to carry out precise and stable diffusion and discharge of the waste culms, and the constitution readily becomes complex and heavy. <P>SOLUTION: A cutting and discharging apparatus of the waste culm cutter is constituted so that a rotating diffusion rotor 6, in which raking out rods 5 are arranged along a diffusion shaft 4 parallel to the cutter shaft 1, is installed, and diffusion guide plates 7 for receiving the cut waste culms released with the diffusion rotor 6 and diffusing and guiding the cut waste culms is installed under a cutting part of the waste culm cutter 3, in which the cutter disks 2 are arranged in the direction of the cutter shaft 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cutting and discharging device for a waste cutter that cuts and discharges a threshed waste of combine.

There is known a technique in which a spinner is disposed below a cutting portion of a waste cutter (for example, see Patent Document 1) or a diffusion spiral rotor is provided (for example, see Patent Document 2).
JP-A-3-198715 (2nd page, FIG. 1) JP 2006-109788 A (page 3, FIG. 1)

  In a rejecting cutter in which the cutter shaft on which a number of cutter disks are arranged is installed horizontally on the threshing / removing part of the combine, the dropping position of the cutting / removing position is located on the side of the rejecting stock of the combine harvesting site. In order to concentrate in a biased manner, it is often guided by being blown down by rotation of a diffusion fan or the like so as to diffuse it toward the tip portion side. In such a form, the blowing force by the diffusion fan is opposed to the rotation of the cutter disk arranged on the cutter shaft and the wind force generated by the scraping fan, etc., and the discharge wind direction of the diffusion discharge portion of the cutting waste Is disturbed, accurate and stable, it is difficult to perform stable discharge of the waste, the structure is complicated, and the weight tends to increase.

  According to the first aspect of the present invention, the scraping rod 5 is disposed below the cutting portion of the rejecting cutter 3 in which the cutter disk 2 is disposed along the cutter shaft 1 direction and along the diffusion shaft 4 parallel to the cutter shaft 1. And a diffusion guide plate 7 for diffusing and guiding the cutting and discharging discharged by the diffusion rotor 6. And Due to the rotation of the cutter shaft 1 and the cutter disk 2, the threshed waste supplied to the posture along the cutting portion is cut short and dropped downward. This cut waste is scraped off by the rotation of the rotary scraper 5 around the lower diffusion shaft 4 and is diffused and discharged to the cutting area with being guided by the rear diffusion guide plate 7 toward the tip side. . Since the diffusion rotor 6 that scrapes off the cutting waste in this manner is scraped to the diffusion guide plate 7 side by the scraping action of the scraping bar 5, there is almost no wind-generating action, and the upper cutting part side. The cutting waste dropped from the top can be scraped off as it is and diffused and discharged to a position closer to the tip side.

  According to the first aspect of the present invention, since the diffusion rotor 6 has a configuration in which the scraping bar 5 is simply disposed around the diffusion axis 4, the structure is simplified, the rotational resistance is reduced, and the cutting is dropped from the cutting portion. It is possible to cause the waste to be diffused and discharged accurately and smoothly without giving wind resistance or the like to the fall of the waste.

  Based on the illustrated example, the combine is equipped with a threshing device 10, a driver's seat 11, an engine 15, a glen tank 12, and the like on a vehicle body 9 in a crawler 8 traveling form, and a multi-cutting form such as 6-row cutting on the front side. The reaping device 13 is provided so as to be movable up and down, and a slaughtering cutter 3 for receiving and severing this scouring is provided at the rear end of the scouring device 14 that transports the threshing scumming waste on the rear side. A diffusion rotor 6 for discharging the cutting waste cut by the waste cutter 3 is integrally formed below the waste cutting portion. On the left and right outer sides of the reaping device 13, a weeding basket 16 is provided. On the opposite side of the threshing device 10 from the driver's seat 11 side, a feed chain 17 is provided along the front-rear direction, and a conveying device 18 that conveys the husks harvested by the reaping device 13 is seen at the front end. On the rear side of the feed chain 17, a waste device 14 is configured to convey the threshed waste material toward the tip side and supply it to the waste cutter 3. These evacuation devices 14 are conveyed rearward in a substantially lateral orientation with the stock base part of the sewage facing the feed chain 17 and the tip part facing the Glen tank 12 side. The reject cutter 3 also has a pair of cutter shafts 1 parallel to the slimming direction of the reject, and a cutter disc 2 for cutting and a take-up rotor along the cutter shaft 1 at predetermined intervals. Etc., and the waste supplied along the cutting part between the cutter shafts 1 can be cut short and discharged downward in the rear side.

  The rejecting cutter 3 has both ends of the cutter shaft 1 mounted inside a box-shaped cutter frame 21 and a transmission belt 22 is hung on the stocker side of the cutter shaft 1 so that the threshing and rejecting device 14 is transmitted from a part. A switching plate 20 that can be opened and closed around the switching shaft 19 is provided on the upper side of the cutter frame 21, and the waste that is sent out by the waste disposal device 14 is opened by opening the switching plate 20 upward. Can be guided and cut. Further, by rotating the switching plate 20 downward to close the cutter frame 21, the waste conveyed by the waste removal device 14 is sent to the rear side (dropper) of the cutter frame 21 and cut. It can be discharged to the cutting area in the absence of this.

  A guide cover 25 is pivotally supported 26 at the lower part of the evacuation cutter 3 at the rear side of the diffusion chamber 23 so as to be able to rotate back and forth. When discharging the cutting waste, the guide cover 25 can be opened rearward. The diffusion rotor 6 is provided in the diffusion chamber 23 and has a chain 24 from the cutter shaft 1 side to be rotated by transmission. The cutting waste that is cut and dropped by the cutting portion can be received and released to the rear guide cover 25 side by rotation.

  Here, the waste cutter according to the present invention is scraped along a diffusion axis 4 parallel to the cutter shaft 1 below the cutting portion of the waste cutter 3 in which the cutter disk 2 is disposed along the cutter shaft 1 direction. Discharge cutter cutting and discharging characterized by providing a diffusion rotor 6 that rotates with a spout 5 disposed therein, and provided with a diffusion guide plate 7 that receives and guides the cutting waste discharged by the diffusion rotor 6. A device.

  The diffusion rotor 6 implants and fixes a scraping bar 5 made of a thin and short round bar around the diffusion axis 4 mounted in the diffusion chamber 23 in the left-right direction, and each of the scraping bars 5 is shifted in phase. It is arranged in a spiral. In the lower part of the diffusion rotor 6, a scraping guide plate 29 is provided along the rotation peripheral portion of the scraping rod 5 so that the vertical angle can be adjusted. Upon receiving the cutting waste dropped from the cutting portion on the scraping guide plate 29, the scraping guide 5 is rotated and guided to the rear guide cover 25 side by the rotation of the scraping rod 5.

  Diffusion guide plates 7 are arranged at appropriate intervals on the guide cover 25 provided on the rear side of the diffusion chamber 23 so that each guide plate 7 receives the scraped waste and is dropped while being guided toward the tip. It is inclined to. The center portion of the diffusion guide plate 7 is pivotally supported by the support shaft 31 with respect to the guide cover 25 and is rotated around the support shaft 31 to adjust the guide angle. These diffusion guide plates 7 can be configured so that the angle of each diffusion guide plate 7 can be set by changing the diffusion guide angle for each cutting / removal of each part such as the stock portion and the tip portion by adjusting the angle separately. It is also possible to adopt a form in which adjustment is performed in conjunction with an interlocking rod or the like.

In the lower part of the side wall 27 on the stocker side of the diffusion chamber 23, a stock guide plate 32 inclined inward is provided to prevent the cutting waste from falling on the adjacent uncut ridges.
By the rotation of the cutter disk 2 of the cutter shaft 1, the waste supplied along the cutting portion is cut short and dropped into the diffusion chamber 23 below. This cutting waste is received on the upper surface of the scraping guide plate 29 and is engaged with the scraping rod 5 by the rotation of the diffusion rotor 6, while being guided to the upper surface of the scraping guide plate 29, the rear guide cover 25 side. Scraped and released.

  In this way, the cutting waste scraped out by the diffusion rotor 6 is guided to the tip side by the diffusion guide plate 7 of the guide cover 25 to be diffused and discharged to the cutting area. If the diffusion guide plate 7 has a gentle inclination angle, it is possible to increase the amount of shift and shift distance of the cutting waste on the stock side to the tip side and to increase the diffusion effect.

The rear view of a waste cutter part. The side view. The top view of a combine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cutter axis | shaft 2 Cutter disc 3 Discharge cutter 4 Diffusion axis | shaft 5 Scraping bar | burr 6 Diffusion rotor 7 Diffusion guide plate

Claims (1)

  Under the cutting part of the rejecting cutter (3) in which the cutter disk (2) is arranged along the cutter shaft (1) direction, the scraped scissors along the diffusion axis (4) parallel to the cutter shaft (1) (5) is provided with a diffusion rotor (6) that rotates and a diffusion guide plate (7) that receives and discharges the cutting waste discharged by the diffusion rotor (6) is provided. A cutting and discharging device for the rejecting cutter.

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