JP5125474B2 - Combine harvester - Google Patents

Description

  The present invention relates to a combine harvester.

  As a scraping and transporting device for a combine harvesting device, a scraping rotary body that scrapes corn straw is provided at both ends of a rotating shaft that is rotatably supported by a supporting arm, and a dish-like shape is provided at both ends of the rotating shaft of the supporting arm. It is well known that a fixed cover is provided and a rotatable collar is interposed between the fixed cover and each of the scraping rotators to prevent wrapping of the culm (Patent Document 1).

Also, in the combine harvesting device, the grain culm in the field is scraped into the harvesting unit and continuously harvested, and also includes a cutting blade, a moving tine, a star wheel, a scooping belt, and a lower conveying chain. It is well known that the rice cake is scraped with a single scooping belt (Patent Document 2).
JP-A-8-172857 JP 2001-299050 A

  In the culm scraping and conveying device of Patent Document 2, in the case where the culm is scraped by a single scoring belt located above the star wheel, The ability to carry and transport the belt by the belt was lowered, and this tendency was remarkable particularly in the case of short cereals.

  Therefore, the present invention provides a pair of upper and lower corn straws in a combine that raises the planted cereals that have been weeded with the weed cocoons and then causes the cereals to be raised by the apparatus and then scraped and conveyed by the cereal scraping and conveying apparatus. By providing a conveying device, the cedar scraping and conveying ability is increased.

The invention described in claim 1 includes a herbaceous body (11) for weeding cereals, a cereal-causing device (12) that causes cereals that have been weeded with the herbaceous body (11), and Cereal scraping and transporting device (13) for scraping and transporting the culm caused by the chopping device (12), and a cutting blade device for cutting the stalk that has been scraped by the culm scraping and transporting device (13) (14) is provided, and the cereal scraping and conveying device (13) is wound around a rear lower pulley (13a) and a front lower pulley (13b) and includes a lowering lug (13c,...) A scraping belt (13d), an upper scraping belt (13h) wound around a rear upper pulley (13e) and a front upper pulley (13f) and having a scraping lug (13g, ...); A lower guide rod (13i) made of an elastic material disposed opposite to the take-up belt (13d); An upper guide rod (13j) made of an elastic material disposed opposite to the upper scraping belt (13h) and a star wheel (32) provided below the rear lower pulley (13a), the grain A portion between the upper and lower scooping belts (13h) and (13d) in the culm scooping and transporting device (13) is driven by a scooping and transporting frame (13m) that supports the rice bran and transporting device (13). Between the part supported and supported by the rake conveying frame (13m) in the cereal rake transfer device (13) and the upper rake belt (13h), the culm rake conveying device (13) A harvesting device for a combine equipped with a drive sprocket (38, 38) for transmitting power from a relay grass collecting and conveying device (15f, 15g) that conveys the rare cereal to the cereal scraping and conveying device (13). .

  According to the above configuration, the planted culm guided to the culm channel by the weed body (11) is caused by the culm pulling device (12), and then the scratches of the upper and lower pair of lower screed belts (13d). It is raked by the lagging lugs (13c,...) And the rake lugs (13g,...) Of the upper rake belt (13h), and then the rake lugs (13c,...) Of the lower rake belt (13d) and the lower guide. Both the root side and the tip side of the planted cereal cocoon are elastically held by the ridge (13i) and the rake lug (13g, ...) of the upper rake belt (13h) and the upper guide ridge (13j). Then, it is scraped and conveyed backward, and is stirred by the star wheel (32).

  The invention according to claim 2 is the combine harvesting device according to claim 1, wherein the star wheel (32) is disposed in the vicinity of the lower surface of the lower scraping belt (13d).

The invention according to claim 3 is the combine harvester according to claim 2, wherein the star wheel (32) is attached to the lower surface of the rear lower pulley (13a) of the lower scraping belt (13d).
The invention according to claim 4 is the left and right grass collecting and conveying device (15b, 15c) provided in the rear part of the relay grass collecting and conveying device (15f, 15g), to the grain squeezing and conveying device (13), The combine mowing device according to claim 1 or 2, wherein the driving force is transmitted through the relay grass collecting and conveying device (15f, 15g).

  According to the first aspect of the present invention, the root side of the cereal bud is caused by the rake lugs (13c,...) And the lower guide ridge (13i) of the lower rake belt (13d), and the tip side is the upper rake belt (13h). And the upper guide rod (13j), and both the root side and the tip side of the cereal are clamped and conveyed backward, and the star wheel (32 ), The spillage of the cereals is reduced and the uptake is ensured, and particularly the squeeze conveyance performance for a short cereal can be improved, and the efficiency of the cutting work by the combine can be increased.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the star wheel (32) can be positioned on the lower side of the lower scraping belt (13d).
According to invention of Claim 3, in addition to the effect by the invention of Claim 2, a corn straw pick-up conveyance apparatus (13) can be comprised compactly.
According to the invention of claim 4, in addition to the effect of the invention of claim 1 or claim 2, the grain is transferred from the left and right grass collecting and conveying device (15b, 15c) via the relay grass collecting and conveying device (15f, 15g). The driving force can be transmitted to the scissor transporting device (13).

First, the overall structure of a combine equipped with the present invention will be described with reference to FIG. FIG. 1 is an overall side view of the combine.
The left and right traveling crawlers 2 and 2 are arranged below the traveling chassis 1 of the combine, the steering unit 3 is located on the front right side of the traveling chassis 1, the Glen tank 4 is located behind the steering unit 3, and the threshing unit is disposed on the left side. 5 is mounted on the front side of the traveling chassis 1 so as to be movable up and down. As shown in FIG. 2, the cutting and conveying unit 6 includes a plurality of herbaceous bodies 11,..., A culm raising device 12,. A device 15, a cereal conveyance device 16, and the like are provided.

  With the above-described configuration, when the rotating parts of the combine are driven to run and the cutting operation is started, the running crawlers 2 and 2 are rotated to start the combine. Then, the grain straws in the field are guided to the grain straw raising device 12,..., While being sown for each grain straw row by the weed bodies 11,. The The raised cereals are scraped by the cereal scraping and conveying device 13 and cut by the cutting blade device 14, collected in the central part from the left and right sides by the cereal collecting and conveying device 15, and then the cereal conveying device 16. Is carried back to the feed chain of the threshing unit 5 and threshed.

Next, the cutting and conveying unit 6 will be specifically described with reference to FIGS.
On the rear side of the cutting and conveying unit 6, there is provided a substantially T-shaped cutting and conveying frame 21 in plan view in which the transmission is built, and the cutting blade frame 14 a is forwardly directed from the front side of the cutting and conveying frame 21. A plurality of weed bodies 11,... Extend forward from the cutting blade frame 14a. Further, the lower frame 12a is attached to the front side portion of the cutting blade frame 14a in the left-right direction. Further, the rear frame 12b is raised from the rear part of the cutting and conveying frame 21 and extends forward and upward, and a raised upper frame 12c is provided along the left and right sides at the front end of the rear conveying frame 21b. And the raising lower frame 12a and the raising upper frame 12c support a plurality of raising cases 12d,... Of the grain raising device 12 so as to be positioned behind the weed bodies 11,. Further, a cutting blade device 14 is attached to the cutting blade frame 14a, and is configured so as to reap the culm that is caused by the culm pulling device 12 and scraped by the culm scavenging and transporting device 13, which will be described later. Yes.

  Further, the front side portion of the cutting and conveying frame 21 is provided with collecting frames 15a,... At the left and right sides and the central portion, and the cereal collecting and conveying devices 15,. Further, the cereal scraping and transporting devices 13 and so on are attached to the scraping and transporting frame 13m extending forward from the collecting frames 15a and so on.

  Next, the cereal scraping and conveying device 13, ... will be specifically described. In the seven-row mold, seven culm scraping and conveying devices 13,... Are provided so as to correspond to the number (K) of corn straw.

  As shown in FIGS. 2, 5 and 6, the grain kneading and transporting device 13 is wound around the rear lower pulley 13 a and the front lower pulley 13 b and is driven by the scraping lugs 13 c at predetermined intervals. A lower scraping belt 13d, a rear upper pulley 13e and a front upper pulley 13f, and an upper scraping belt 13h having a scraping lug 13g at predetermined intervals, and a lower scraping belt 13d. A lower guide rod 13i made of an elastic material arranged opposite to the scraping lug 13c, an upper guide rod 13j made of an elastic material arranged opposed to the scratching lug 13g of the upper scratching belt 13h, and a rear lower portion It is comprised by the star wheel 32 located below the pulley 13a.

  According to the above configuration, the planted cereals guided from the weed culm 11 include the rake lug 13c and the lower guide ridge 13i of the lower rake belt 13d, and the rake lug 13g and the upper guide of the upper rake belt 13h. By the scissors 13j, both the root side and the tip side are clamped and conveyed backward while being elastically clamped, and it is possible to ensure the uptake of cereals and improve the performance of short stalks.

  In addition, a rear pulley shaft 31,... Is vertically mounted on the scraping conveyance frame 13m,..., A rear lower pulley 13a is provided below the rear pulley shaft 31,. Each pulley 13e is pivoted through a collar. A circular plate 33 and a star wheel 32 having substantially the same diameter are disposed below the rear lower pulley 13a, and are integrally fixed to the rear lower pulley 13e with bolts and nuts.

According to the said structure, it can comprise compactly and can prevent the winding of the grass around the back side lower pulley 13e.
Further, the rear pulley shafts 31,... Are attached to the rear lower pulley 13a and the upper pulley 13e having the same diameter, and the upper scraping belt 13h is configured to protrude forward from the lower scraping belt 13d. Yes.

  According to the above-described configuration, the scraping speed of the lower scraping belt 13d and the upper scraping belt 13h is the same, and the tip side is scraped ahead of the root side by the upper scraping belt 13h. It is possible to prevent a delay in the feeding and to improve the feeding and carrying performance of the short cereal rice cake. Moreover, the parts of the rear lower pulley 13a and the upper pulley 13e can be shared, and the cost can be reduced.

  Further, the rear pulley shafts 31,... Are attached to the rear lower pulley 13a and the upper pulley 13e with the same diameter, and are configured to be longer than the lower scraping belt 13d so that the upper scraping belt 13h protrudes forward, The front end of the lower scavenging belt 13d is located outward in plan view, and the front end of the upper pulley 13e is located inward, and the transport direction of the lower scoop belt 13d is a predetermined angle outside the transport direction of the upper scoop belt 13h. The diameter of the front lower pulley 13b is made smaller than the diameter of the front upper pulley 13f, and is configured so that the direction of feeding the upper scooping belt 13h substantially follows the guiding direction of the weed culvert 11 The scraping protrusion 32a of the foil 32 protrudes longer than the outer periphery of the rear lower pulley 13a and extends to the middle part in the front-rear direction of the lower scraping belt 13d and the upper scraping belt 13h. It is configured to.

  According to the said structure, the tip side of the corn straw guided from the weeding body 11 can be smoothly handed over to the inner side upper scraping belt 13h, and the root side of the grain ridge is smoothed to the lower trailing belt 13d closer to the outer side. Can take over. In addition, the star wheel 32 that is faster than the scraping and transporting speed of the lower scrambling belt 13d and the upper scoring belt 13h improves the uptake of cereals and improves the transporting performance of the short stalks. In addition, since the diameter of the front lower pulley 13b is smaller than the diameter of the front upper pulley 13f, it is possible to reduce the protrusion of the lower scraping belt 13d to the non-operating side and to achieve a compact configuration.

  Further, the protruding length of the scraping lugs 13c of the lower scraping belt 13d wound around the rear lower pulley 13a and the front lower pulley 13b is wound around the rear upper pulley 13e and the front upper pulley 13f. It is configured to be shorter than the protruding length of the scraping lugs 13g of the upper scraping belt 13h, and the shaft center of the front upper pulley 13f and the shaft center of the front lower pulley 13b are moved closer to each other in the left-right direction and separated in the front-rear direction. The front upper pulley 13f is disposed forward.

  According to the said structure, since the root side approaches the center side of the star wheel 32 rather than the tip side of a grain straw, the taking-in of the root side of the star wheel 32 becomes good, and the picking and conveying performance of the short grain straw can be improved. it can. In addition, the protrusion of the lower scraping belt 13d to the non-operating side can be reduced, and interference with the frame portion can be avoided.

  Further, when the elastic upper guide rod 13j is disposed facing the scraping lug 13g of the upper scratching belt 13h, the front end portion of the upper guide rod 13j is attached to the weed body 11 and the middle portion thereof is attached to the upper scraper 13j. It extends rearward along the slightly upper position of the insertion belt 13h. Further, when the lower guide rod 13i made of an elastic material is opposed to the scraping lug 13c of the lower scraping belt 13d, the front end portion of the lower guide rod 13i is attached to the weed body 11 and the midway portion is inclined downward and rearward. Extend and approach the vicinity of the upper part of the start-up end of the lower take-up belt 13d, and then extend rearward while keeping the rear side slightly above the lower take-up belt 13d. The star foil 32 is placed above the scratching protrusion 32a.

  According to the above-described configuration, the entire grain candy can be guided and guided by the upper guide ridge 13j and the lower guide ridge 13i while being pressed against the upper rake belt 13h and the lower rake belt 13d. In addition, the lower guide rod 13i can guide and guide the root side of the cereal to the lower scraping belt 13d and the star wheel 32, and the cedar scraping and conveying performance can be improved.

Next, another embodiment of the culm scraping and conveying device 13 for converting to a standard culm and a short culm based on FIG. 7 will be described.
As shown in FIGS. 7 (A) and 7 (c), the cereal scraping and conveying device 13 for short cereals includes a rear upper pulley 13e and a front upper pulley 13f that are pivoted on the stirring and conveying frame 13m. And an upper scraping belt 13h that is wound around the rear upper pulley 13e and the front upper pulley 13f and has a scraping lug 13g,... At predetermined intervals, and the star wheel 32 and the upper scraping belt 13h. The upper guide rod 13j is made of an elastic material and is opposed to the lug 13g.

  Further, a vertical intermediate portion of the rear pulley shaft 31 is rotatably supported on the scraping conveyance frame 13m, and a driving sprocket 38 is integrally rotated via a collar 36 on the vertical intermediate portion of the rear pulley shaft 31. The rear upper pulley 13e is attached to the upper portion of the rear pulley shaft 31 via a collar 36a so as to rotate integrally, and the star wheel 32 is integrally rotated to the lower end portion of the shaft 31 via a collar 36b. It is attached as follows. Further, a winding preventing collar 39 is provided between the driving sprocket 38 and the star wheel 32, and a winding preventing collar 39a is provided between the driving sprocket 38 and the rear upper pulley 13e. doing.

  And when changing the cereal scraping conveying device 13 for short cereals to that for standard cereals, as shown in FIG. 7 (B), an adjustment collar 41, an anti-winding collar 42 for adjustment, a bolt An adjustment collar 43 is interposed, and the rear upper pulley 13e and the upper scraping belt 13h are adjusted upward and attached with bolts.

  According to the above-described configuration, when changing to a short grain candy, the adjustment collar 41, the adjustment wrapping prevention collar 42, and the bolt adjustment collar 43 are removed from the standard type, and the rear upper pulley 13e and the upper rake are removed. By adjusting the belt 13h downward, it is possible to easily cope with it, and it is possible to improve the scraping and conveying performance at the cutting start portion of the short grain culm.

  In addition, as shown in FIG. 8, when the star wheel 32 is attached to the lower end portion of the collar 36 b during the harvesting operation of the short cereal cocoon, it is possible to further enhance the short-powder cocoon transfer performance. it can.

Next, the cereal collecting / conveying device 15, ... will be described.
As shown in FIG. 2, the cereal collecting and conveying device 15 is composed of left and right collecting and conveying devices 15b and 15c and central collecting and conveying devices 15d and 15e, which respectively have a root conveying unit and a tip conveying unit. I have. Between the left and right collecting and conveying devices 15b and 15c and the left and right side ends of the culm scraping and conveying devices 13,..., Relay collecting and conveying devices 15f and 15g for root side conveyance are provided.

  Then, power for transmission is taken out from the collecting / conveying frames 15a,... And transmitted to the collecting / conveying devices 15b, 15c, 15d, 15e, and further from the collecting / conveying devices 15b, 15c to the relay collecting / conveying device 15f. , 15 g, and the power is transmitted to the cereal scraping and conveying device 13,... Via the drive sprockets 38, 38. Further, power is transmitted to some of the cereal scraping and conveying devices 13,... Via a transmission device 46 taken out from the cutting blade frame 14a.

Combine side view A plan view of the cutting and conveying section, partly omitted Plan view with some parts omitted Side view with some parts omitted Plan view of a part of the cutting and conveying section Side view of a part of the cutting and conveying section Plan view and side view of cereal scraping and conveying device Side view of cereal scraping and conveying device

6 Cutting and transporting part 11 Weeding body 12 Grain raising apparatus 13 Grain picking and conveying apparatus 13a Rear lower pulley 13b Front lower pulley 13c Brake lug 13d Lower raising belt 13e Rear upper pulley 13f Front upper pulley 13g Lug 13h Upper scraping belt 13i Lower guide rod 13j Upper guide rod 13m Scratch conveyance frame 15b Left and right grass collection conveyance device 15c Left and right grass collection conveyance device 15f Relay grass collection conveyance device 15g Relay grass collection conveyance device 14 Cutting blade device 32 Starfoil 32a Scratching projection 38 Drive sprocket

Claims (4)

A sprouting body (11) for weeding the cereal, a cereal-triggering device (12) for causing cereals that have been weeded by the weeding body (11), and a sprouting device (12) A cereal scraping and transporting device (13) for scraping and transporting the cereal cocoon, and a cutting blade device (14) for cutting the cereal scraped by the cereal scraping and transporting device (13), A lower take-up belt (13d) having a take-up lug (13c,...) Wound around a rear lower pulley (13a) and a front lower pulley (13b) The upper and lower pulley belts (13h, 13g) are wound around the rear upper pulley (13e) and the front upper pulley (13f), and are opposed to the lower scraping belt (13d). A lower guide rod (13i) made of an elastic material, and the upper scraping belt (13 ) And an upper guide rod (13j) made of an elastic material, and a star wheel (32) provided below the rear lower pulley (13a). 13) A portion between the upper and lower rake belts (13h) and (13d) in the culm scraping and conveying device (13) is supported by a rake conveying frame (13m) that supports 13), Between the part supported by the scraping and transporting frame (13m) in the scraping and transporting device (13) and the upper stirring belt (13h), the stalks that have been scraped by the stalk transporting device (13) are transported Combine harvester comprising drive sprockets (38, 38) for transmitting power from the relay grass collecting and conveying device (15f, 15g) to the cereal scraping and conveying device (13) .   The combine reaping device according to claim 1, wherein the star wheel (32) is arranged close to a lower surface of the lower scooping belt (13d).   The combine harvester according to claim 2, wherein the star wheel (32) is attached to a lower surface of a rear lower pulley (13a) of the lower scraping belt (13d).   From the left and right grass collecting and conveying device (15b, 15c) provided at the rear part of the relay grass collecting and conveying device (15f, 15g) to the cereal scraping conveying device (13), the relay grass collecting and conveying device (15f, The combine mowing apparatus according to claim 1 or 2, wherein the driving force is transmitted via 15g).

Images