JP2005318860A - Supporting structure of raking and transporting apparatus in combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To compose a pair of right and left star wheels on the driven side constituting a raking apparatus and star wheels on the driving side meshing with the star wheels on the driven side from the outside so as to regulate the meshing height and to reduce the contact frequency of a supporting member supporting the star wheels on the driven side with raked grain culms. <P>SOLUTION: The front side of a supporting frame 41 supporting the star wheels 33L and 33R on the driven side is connected to a grass divider supporting frame 12 so as to regulate the height. The rear side of the supporting frame 41 is connected to the supporting member 51 installed extendedly from transmission cylinders 45 and 46 of a pretreatment part toward the supporting frame 41 so as to regulate the height. The supporting member 51 is deviated from the intermediate part of both the star wheels 33L and 33R on the driven side when viewed from the front of the machine body 3 to the right side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a support structure for a scooping and transporting device that scoops and transports a stock of cereals harvested with a cutting blade in a pre-processing section of a combine.

Conventionally, a pre-processing unit (a mowing unit) for a combine has a plurality of weed bodies arranged in parallel in the left-right direction of the machine body, a plurality of pulling devices for raising a weed cereal meal provided at the rear of each weed body, A cutting blade provided at the rear of the device, a plurality of stock source scoring devices that scrape the harvested cereal culm, and a plurality of stock source side converging and transporting devices that focus the scoring cereal to the rear takeover point Yes. In the case of four-row cutting, a support member that supports the stock former scoring device in the center of the machine is raised from the weed ridge fixed to the cutting blade frame, and then extended backward to bypass the upper side of the cutting blade. In addition, it is known that it extends further upward and is connected to the upper side of the pulling device, and the support member is arranged in the middle part of a pair of left and right star wheels constituting the stock-source scraping device in plan view. (For example, refer to Patent Document 1).
Japanese Patent No. 3243810 (page 3, FIG. 3, FIG. 5, FIG. 6)

  However, what has been described above is the meshing height between the pair of left and right driven star wheels constituting the stock scraper supported by the support member, and the drive side star wheel meshing with the driven side star wheel from the outside. Therefore, if there is a deviation in the tooth height of both star wheels, the scraping posture of the harvested culm tends to be disturbed. In addition to the occurrence of clogging at the merging portion on the conveyance end side conveyed by the tip side conveyance body, the load on the transmission system is increased, resulting in a failure.

  In addition, since the support member is disposed in the middle part of the pair of left and right star wheels constituting the stock former scoring device in a front view, particularly, it passes through the left side of the support member and is conveyed toward the merge part. There was also a problem that the scraped cereal mash that was brought into contact with the support member could not be smoothly conveyed.

  The present invention has been devised for the purpose of solving the above-mentioned problems, and includes a pulling device provided behind the weed body, a cutting blade provided behind the pulling device, and a cereal harvested by the cutting blade. A scraping and transporting device having a driving star wheel for scraping the stock and a driven star wheel meshing with the driving star wheel, and the cereals scraped by the scraping transport device at the rear junction In a combine having a pre-processing unit equipped with a stock-side transport device and a tip-side transport device that are transported toward the front, the front side of the support frame that supports the driven star wheel is connected to the herbaceous plant support frame so that the height can be adjusted. On the other hand, the first feature is that the rear side of the support frame is connected to a support member extending from the transmission cylinder of the pretreatment unit toward the support frame so that the height can be adjusted.

  Further, a pulling device provided behind the weed body, a cutting blade provided behind the pulling device, a driving star wheel for scraping the stock of the cereal harvested by the cutting blade, and the driving star wheel Front equipped with a scraping and transporting device comprising a driven side star wheel that meshes, and a stock-side transporting device and a tip-side transporting device that transports cereals scraped by the scraping and transporting device toward the rear junction In a combine having a processing section, the front side of the support frame that supports the driven side star wheel is connected to the herbaceous body support frame, while the rear side of the support frame is directed from the transmission cylinder of the preprocessing section toward the support frame. The second feature is that the support member is connected to the extended support member, and the support member is shifted from the middle of the two driven star wheels to the right side when viewed from the front of the machine body.

  According to the first aspect of the present invention, the front side of the support frame that supports the driven star wheel is connected to the herbaceous support frame so that the height can be adjusted, while the rear side of the support frame is connected to the transmission cylinder of the pretreatment unit. By connecting to the support member extending toward the support frame so that the height can be adjusted, it is possible to easily adjust the meshing height of the driven teeth of the driven star wheel relative to the driven teeth of the driven star wheel. Thus, it is possible to eliminate the disturbance of the scraping posture and the poor transmission of the harvested cereal which are caused by the deviation of the height of the scraping teeth of the two star wheels, which are the conventional problems. Therefore, defects such as clogging at the rear junction where the scraped cereals are transported by the left and right plant-side transport devices and the tip-side transport device, and a failure due to an increase in the load on the transmission system are reduced. .

  According to the invention of claim 2, the front side of the support frame that supports the driven star wheel is connected to the herbaceous body support frame, and the rear side of the support frame is connected to the support frame from the transmission cylinder of the pretreatment unit. In addition to being connected to a support member extending toward the center, the support member is shifted to the right side from the middle of both driven star wheels in front view of the airframe, so that it passes through the left side of the support member in particular and merges backward. As a result, the frequency of contact between the scraped cereals conveyed toward the portion and the support member is reduced and smooth conveyance is performed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an external appearance of a four-row harvesting combine 1 to which the support structure for a stirrer / conveyor according to the present invention is applied.
1084248071250_0
These are the front views of the 4-saw combine combine 1 which abbreviate | omitted the raising apparatus, the cover, etc. FIG.

  As shown in FIGS. 1 and 2, the combine 1 includes a body 3 in which a pair of left and right crawler travel devices 2L, 2R for self-running (the left crawler travel device 2L is not shown) are arranged along the travel direction. A multi-steering lever 6 and a main transmission lever 7 are arranged on the operation panel of the driving operation unit 4 that occupies the upper position of the machine body 3 and performs the steering operation and the raising / lowering operation of the preprocessing unit 5. The crawler travel devices 2L and 2R are driven by the output from an engine (not shown) mounted on the machine body 3 so that the combine 1 travels on its own.

  The pretreatment unit 5 is integrally attached with a plurality of weed bodies 11 for weeding the harvested cereal grains to the weed body support frame 12, and the right and left weed body support frames 12 have narrow guides 13L and 13R. (The narrow guide 13L on the left is not shown). And the raising device 14 which raises the weed cereal straw is provided behind the weed body 11.

  In addition, a driver's seat 15 is provided at the right front portion of the body 3 and a grain tank 16 is disposed behind the driver's seat 15. On the other hand, on the left side of the machine body 3, a threshing feed chain (not shown) that conveys the cereals harvested by the pretreatment unit 5, and threshing the grains from the cereals conveyed by the threshing feed chain, A threshing unit 17 that performs sorting is provided, and the grain that has been subjected to the threshing and sorting process by the threshing unit 17 is lifted and conveyed by a milling cylinder (not shown) and temporarily stored in the grain tank 16.

  As shown in FIG. 2, an input transmission cylinder 18 facing the left-right direction of the machine body 3 is provided at the rear part of the pre-processing unit 5, and both left and right ends of the input transmission cylinder 18 are provided at the front part of the machine body 3. Further, it is rotatably supported by a support member of an input transmission cylinder (not shown). The input transmission cylinder 18 is provided with an input pulley 19 at the right end (end on the side of the operation unit 4), and power from the engine is input to the input pulley 19 via a transmission belt (not shown). Through the vertical transmission cylinder 20 whose power extends from the input transmission cylinder 18 toward the diagonally lower front of the machine body 3, the pulling device 14, the cutting blade 21 for cutting the stock of the culm, and the harvested culm at the rear It is transmitted to the tip side transport device 22 and the like transported toward the threshing unit 17.

  In addition, a hydraulic cylinder (not shown) is connected to a substantially intermediate portion between the machine body 3 and the vertical transmission cylinder 20, and the pretreatment unit 5 is forcibly moved up and down by extending and contracting the hydraulic cylinder. . As shown in FIG. 3, a vertical transmission cylinder 20 and a horizontal transmission cylinder 23 orthogonal to the T-shape are extended at the lower end of the vertical transmission cylinder 20 in the left-right direction of the machine body 3. It is linked to.

  The above-described pulling device 14 includes a claw-shaped chain 24 and a pull-up case 25, and pulls up a plurality of claws attached to the claw-shaped chain 24 at a predetermined interval to rotate upward in the case 25. Thus, the harvested cereal grains after weeding with the weeding body 11 can be neatly sprinkled. Further, at the rear of the pulling device 14 and at the lower front portion of the horizontal transmission cylinder 23, there is provided a cutting blade 21 that cuts the stock of the cereals close to the ground, and the grain cut by the cutting blade 21. The scissors are transferred backward while being scraped in a substantially upright state by the plurality of scooping and conveying devices 31.

  More specifically, the scraping and conveying device 31 is disposed inside the drive side star wheels 32L and 32R having a plurality of scraping teeth disposed on both sides in the left-right direction of the machine body 3 and inside the drive side star wheels 32L and 32R. In addition, driven star wheels 33L and 33R having scraping teeth that mesh with the drive side star wheels 32L and 32R, and locking claws that rotate integrally with the star wheels 32L, 32R, 33L, and 33R The tip end side conveying means 32a, 32b, 33a, 33b are provided.

  The cereal grains scraped by the tip side conveying means 32a, 32b, 33a, 33b with locking claws that rotate integrally with the star wheels 32L, 32R, 33L, 33R are shaped like a letter C in front view of the body 3. The left and right stock-side transport devices 35L and 35R that rotate integrally with the drive-side star wheels 32L and 32R, and the tip-side transport device 22 are transported toward the rear junction A. . A handling depth conveying device 36 that detects the culm length of the harvested cereal meal and automatically adjusts it to an appropriate handling depth is provided behind the scraping conveying device 31.

  Further, the driven star wheels 33L and 33R constituting the above-described scraping and conveying apparatus 31 are attached to the left and right sides of the square pipe-shaped support frame 41, as shown in FIGS. Has a fixed round pipe 41a, and the front side thereof can be connected (screwed) to the weeding body support frame 12 so that its height can be adjusted. More specifically, a plate 12a is fixed at a substantially intermediate portion in the front-rear direction of the weed support frame 12, and the support frame 41 is fixed to the support frame 41 by using the long holes H1 and H1 provided in the plate 12a. The connection height and connection angle of the connection plate 41b provided on the front side of the provided round pipe 41a, that is, the connection height and connection angle of the support frame 41 with respect to the weed body support frame 12 can be adjusted.

  On the other hand, the pulling device 14 is connected via a vertical transmission cylinder 42 raised from the left end of the horizontal transmission cylinder 23, which is one of the preprocessing section transmission cylinders, and a horizontal transmission cylinder 43 orthogonal to the vertical transmission cylinder 42. The transmission cylinders 44, 45, 46, 47 are branched, and the support frame 41 is directed from the central transmission cylinders 45, 46 of the transmission cylinders 44, 45, 46, 47 toward the support frame 41. A round pipe 51 as a supporting member to be supported is extended, and the rear side of the support frame 41 can be connected (screwed) to the front side of the round pipe 51 so that the height can be adjusted. Further, a round pipe 52 is integrally fixed to the front lower portion of the round pipe 51, and a plate 52a fixed to the lower end portion thereof is connected (screwed) to the horizontal transmission cylinder 23. In other words, the rear side of the support frame 41 is firmly supported by the two round pipes 51 and 52 arranged vertically.

  More specifically, the round pipe 51 connects (screws) the left and right sides of the plate 51a fixed to the rear side (upper base end side) to the flange portions 45a and 46a at the distal ends of the transmission cylinders 45 and 46, and The plate 51 b fixed to the front side (lower side) of the pipe 51 can be connected (screwed) to the mounting seat 41 c of the support frame 41. The plate 51b is provided with long holes H2 and H2, and the connection height of the support frame 41 to the support member (round pipe) 51 can be adjusted using the long holes H2 and H2. Yes.

  As described above, the front side of the support frame 41 that supports the driven star wheels 33L and 33R is connected to the herbage support frame 12 so that the height thereof can be adjusted, while the rear side of the support frame 41 is connected to the pretreatment unit. By connecting the transmission cylinders 45 and 46 to the support member 51 extending toward the support frame 41 so that the height can be adjusted, the driven star wheels 33L and 33R of the driven star wheels 32L and 32R with respect to the scraping teeth are connected. It becomes possible to easily adjust the mesh height of the scraping teeth, and this is caused by a shift in the mesh height of the scraping teeth of the driving side star wheels 32L and 32R and the driven side star wheels 33L and 33R, which is a conventional defect. It is possible to eliminate the disturbance of the scraping posture of the harvested cereal and the poor transmission. Therefore, the clogged cereals are transported by the right and left stock-side transport devices 35L and 35R and the tip-side transport device 22, and the clogging at the rear junction part A and the load on the transmission system increase, resulting in a failure. Such problems are reduced.

  In the embodiment of the present invention, the rear side of the support frame 41 is supported by the round pipes 51 and 52 disposed above and below the support frame 41. However, the upper round pipe 51 is eliminated and the lateral transmission cylinder 23 is removed. The lower round pipe 52 connected (screwed) to the support frame 41 may be extended toward the support frame 41, and the rear side of the support frame 41 may be supported by the lower round pipe 52.

  Further, as shown in FIGS. 2 and 5, the round pipe 51, which is a support member that supports the support frame 41 described above, is shifted to the right side from the middle of the driven side star wheels 33 </ b> L and 33 </ b> R in the front view of the body 3. In addition, since it extends from the pretreatment section transmission cylinders 45 and 46 toward the support frame 41, it is scraped through the left side of the round pipe 51, which is a support member, and is conveyed toward the rear junction section A. The contact frequency between the cereal and the round pipe 51 is reduced, and smooth conveyance is performed.

The perspective view which shows the external appearance of a combine. The front view of the combine which omitted a part. B arrow view in FIG. The perspective view which shows the support structure of a driven side star wheel. The rear view which shows the support structure of a driven side star wheel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 5 Pre-processing part 11 Weeding body 12 Weeding body support frame 14 Pulling-up device 21 Cutting blade 11 Weeding body 31 Stake conveyance apparatus 32L Drive side star wheel 32R Drive side star wheel 33L Drive side star wheel 33R Drive side star wheel 35L Stock side Conveying device 35R Stock-source-side conveying device 41 Support frame 45 Transmission cylinder 46 Transmission cylinder 51 Support member A Merge section

Claims (2)

  The pulling device (14) provided at the rear of the weed body (11), the cutting blade (21) provided at the rear of the pulling device (14), and the stock of the cereal harvested by the cutting blade (21) A drive-side star wheel (32L, 32R) and a driven-side star wheel (33L, 33R) meshing with the drive-side star wheel (32L, 32R); Pretreatment section (5) comprising stock source side transport apparatus (35L, 35R) and tip side transport apparatus (22) for transporting cereals scraped by apparatus (31) toward rear merge section (A) The front side of the support frame (41) that supports the driven star wheel (33L, 33R) is connected to the herbage support frame (12) so that the height of the combiner can be adjusted. The rear side is The support structure of the scraping conveyor apparatus in the combine, characterized in that the height adjustably connected to the support member (51) which is extended toward the cylinder (45, 46) in the support frame (41).   The pulling device (14) provided at the rear of the weed body (11), the cutting blade (21) provided at the rear of the pulling device (14), and the stock of the cereal harvested by the cutting blade (21) A drive-side star wheel (32L, 32R) for driving and a driven-side star wheel (33L, 33R) meshing with the drive-side star wheel (32L, 32R); Pretreatment section (5) comprising stock source side transport apparatus (35L, 35R) and tip side transport apparatus (22) for transporting cereals scraped by apparatus (31) toward rear merge section (A) The front side of the support frame (41) that supports the driven star wheel (33L, 33R) is connected to the herbage support frame (12), while the rear side of the support frame (41) is connected to the front Transmission cylinder (45, 4) ) To a support member (51) extending toward the support frame (41), and the support member (51) is intermediate between the two driven star wheels (33L, 33R) in front view of the body (3). A support structure for a scraping and conveying device in a combine, characterized in that it is shifted to the right.

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