JP2012105613A - Seven-row reaping combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seven-row reaping combine harvester having an excellent capability of conveying grain culms in a pretreatment part.SOLUTION: The seven-row reaping combine harvester includes: right and left plant-root conveying bodies 41 and 42 in the right and left; and central left and central right plant-root conveying bodies 43 and 44 at the center. The central right plant-root conveying body 44 conveys grain culms raked by two raking star wheels 20a, and the central left plant-root conveying body 43 conveys grain culms raked by one remaining raking star wheel 20a. The raking star wheel 20a to the central left plant-root conveying body 43 is separated in the lateral direction from the adjacent second raking star wheel 20a from the left as seen from the top not to be engaged with each other. The raking star wheel 20a to the central right plant-root conveying body 44 overlaps on the adjacent second star wheel 20a from the right as seen from the top, but is separated in the vertical direction from the adjacent star wheel so as not to be engaged with each other. The respective plant-root conveying bodies 41, 42, 43 and 44 are independently driven by driving wheels 41a, 42a, 43a and 44a of a parallel transmission system.

Description

  The present invention particularly relates to a pretreatment unit for a seven-row harvesting combine.

  Conventionally, in the pre-processing section of the 7-cut combine, seven star wheels corresponding to the number of the cut-off lines are provided in the left-right direction below the front side, and the stock base is cut with a cutting blade while being scraped with the driven star wheel. Is a technology that transports 7 grain cereals backward by a total of four stock transporters: a stock transporter on the left, a stock transporter on the right, and two stock transports provided in the center. Are known. (For example, refer to Patent Document 1).

JP 2009-136190 A

  However, the one described in Patent Document 1 drives the right five stock wheels 31D, 31S... With the right stock transport body 38A and drives the left stock stock transport body 38C from the lower transmission side. The central three star wheels 31D, 31S, 31S are driven by the one driven in a dependent manner (first embodiment) or the center left stock transporter 38C, and the center right stock transport 38B is driven subordinately. All of which are transmitted from a single input drive sprocket 49 or drive sprocket 47B to a plurality of stock transporters and a plurality of star wheels 31D, 31S,... , The scraped transport load (drive torque) applied to the input drive sprocket 49 or 47B increases, and the transport jam or transport torque due to insufficient drive force There is a problem of inducing conveyance failure due frequent operation of Potter.

In the first embodiment, the four star wheels 31S... Are sequentially meshed and driven from the star wheel 31D at the right end, so that the star wheels 31D and 31S closer to the right side closer to the transmission source have a driving load. There is a problem that transmission failure and scraping failure occur due to early wear of the teeth of the star wheels 31D and 31S on the right side.
This invention improves the said conventional problem, and an object of this invention is to provide the 7 row cutting combine with the favorable conveyance performance of the grain candy in a pre-processing part.

  In order to achieve the above object, the invention according to claim 1 is provided with a pre-processing unit 3 having seven trimming strips in front of the airframe 1, and the pre-processing unit 3 is provided in the left-right direction below the front. And the stock base transport body 40 that transports the cereals scraped by the stapling star wheel 20a. Is a left stock transporter 41 disposed in an inclined manner from the front left end side to the rear right side of the pretreatment unit 3 in a plan view, and is inclined from the front right end side of the pretreatment unit 3 to the rear left side. Right stocker transport body 42 to be arranged, middle left stock transporter 43 located on the left side of the front center portion of the pretreatment unit 3, and middle right stock transporter body located on the right side of the front center portion of the pretreatment unit 3 44, the second leftmost and the second from the left by the left stock former carrier 41. The driven star wheels 20a, 20a are driven to convey the two cereals that have been scraped by the two stirred star wheels 20a, 20a. By driving the staring star wheels 20a, 20a, the two cereal grains scraped by the both staring star wheels 20a, 20a are conveyed, and the middle left stock former transport body 43 or the middle right stock former transport body 44 Two strips driven by the three scavenging star wheels 20a, 20a in the center, and scraped by two adjacent staring star wheels 20a, 20a among the three scrambling star wheels 20a,. The cereals for one minute are transported by either the middle left stock transporter 43 or the middle right stock transporter 44, and the remaining one portion of the spear is scraped by the one stirrer star wheel 20a. Left stock transport body 43 or middle right stock transport body 44 Adjacent to the stirrer star wheel 20a, which is transported on either side and feeds the cereal into the middle left stock transport body 43 or the middle right stock transport body 44 that transports the above-mentioned grain mash. The left left stock transporter 43 or the second streak star wheel 20a from the left or the right from the left is separated from the left and right in a plan view to be in a non-engagement state and transports the above-mentioned two cereals. Of the two stirrer star wheels 20a, 20a that scrape and supply the cereal to the right stock transporter 44, the stirrer star wheel 20a on the outer side and the second adjacent from the left or the second from the right The star wheels 20a are superposed in a plan view but are separated in the vertical direction so as not to be engaged with each other, and the left stock transporter 41, right stock transport 42, middle left stock transport 43 and middle right The stock transporter 44 is individually transmitted in parallel. The drive wheels 41a, 42a, 43a, 44a that are moved are configured to be independently driven.

  Further, the invention according to claim 2 is the middle left stock transporter 43 or the middle right that meshes and transmits the three strewn star wheels 20a.. The left and right left sides of the stock transporter 44 support the driven wheels 43b, 44b on the support shaft 20c of the stirrer star wheel 20a that feeds the stock straw into the stock transporter. The driven wheels 43b, 44b of the stock former transport body 43 or the middle right stock transport body 44 are fed with either one of the two stir star wheels 20a, 20a that scrape and supply cereals to the stock transport body. It is supported by the shaft 20c and supported by the driven wheel 43b of the middle left stock transport body 43, the driven wheel 44b of the middle right stock transport body 44, and the support shafts 20c and 20c that support the both driven wheels 43b and 44b. One of the two stir-up star wheels 20a, 20a Each of them is externally fitted and supported on the support shaft 20c so as to freely rotate, and the remaining three are supported and fixed on the support shafts 20c and 20c so as not to freely rotate.

  In addition, the invention according to claim 3 is a method in which the driven wheels 43b and 44b of the middle left stock transport body 43 or the middle right stock transport body 44 for transporting the cereal of the above-mentioned one row are used as the grain stock. The middle left stock transport body 43 or the middle right stock transport body 44 which is supported and fixed to the support shaft 220c of the stirrer star wheel 20a which stirs and feeds the sputum so as not to freely rotate, and transports the above-mentioned two cereals. The following driven wheels 43b and 44b are supported and fixed so as not to be freely rotatable on one of the two spindles 20c of the two stirring star wheels 20a and 20a, which feed the cereals into the stock transporter. The two stirrer star wheels 20a, 20a are meshed and transmitted, and at the same time, the grain left is fed into the middle left stock transporter 43 or the middle right stock transporter 44 that transports the above-mentioned grain straw. Next to the included star wheel 20a And one of the stirrer star wheels 20a, 20a that stirs and feeds the culm into the middle left stocker transport body 43 or the middle right stocker transporter 44 that transports two grain stalks. Although 20a is superposed in a plan view, it is separated in the vertical direction to be in a non-engagement state.

  In the invention according to claim 1, although it is a 7-cut combine, as in the past, a single input drive wheel does not drive a plurality of stock transporters and as many as 5 stir-up star wheels. , The left stock transport body 41, the right stock transport body 42, the middle left stock transport body 43 and the middle right stock transport body 44 are each driven in parallel to drive wheels 41a, 42a, 43a for input. , 44a are driven independently, and the number of scratched star wheels 20a transmitted from a single drive wheel is also reduced (three or less), so that the load on the cereal scraping and conveying load is a part of the drive wheels for input. Since the load applied to each input drive wheel 41a, 42a, 43a, 44a is properly distributed without being increased in a biased manner, it is possible to prevent clogging and transport clogging due to insufficient driving force, Drive-in star wheel 20 Since the number of driven driven star wheels 20a engaged with each other is small, it is possible to prevent early wear of the driven star wheel 20a as a driving source in particular, and to provide a seven-strike combine with good scraping conveyance performance. it can.

  In addition, from the left adjacent to this, a stir star wheel 20a that feeds the rice cake into the middle left stock transport body 43 or the middle right stock transport body 44 that transports one portion of the grain stock in the center, and the left side adjacent thereto. Since the second or second star wheel 20a from the right (rotating in the same direction as the above-described staring star wheel 20a) is left and right separated in a plan view, the adjacent staring star wheel 20a is separated. Does not hinder the scum by the squeezing star wheel 20a that supplies the cereal to the middle left stock transporter 43 or the middle right stock transporter 44, Stirring star wheel on the outer side of the two stirrer star wheels 20a that scrape and supply cereals to the middle left stock transporter 43 or the middle right stock transporter 44 that transports two cereals. 20a and 2 from the left adjacent to this Since the second staring star wheel 20a from the eyes or the right is superposed in a plan view but separated in the vertical direction to be in the non-engagement state, the entire width of the seven staring star wheels 20a in parallel, that is, The width of the preprocessing unit 3 can be reduced.

  In addition, in the invention according to claim 2, in addition to the effect of the invention according to claim 1, the three driven star wheels 20a,... In addition, it is possible to construct the three scavenging star wheels 20a in the central part at the same height, and to improve the scuffing performance. Since the wheel 20a is driven only from either the middle left stock transport body 43 or the middle right stock transport body 44, forcible driving force from a plurality of systems is applied to the three staggered star wheels 20a. It is possible to prevent occurrence of locking, abnormal meshing, and the like at the meshing portions of the stirrer star wheels 20a due to transmission at the same time, and deformation and damage of the stirrer star wheel 20a and the transmission system.

  Further, in the invention according to claim 3, in addition to the effect of the invention according to claim 1, a pair of the staring star wheels 20a, 20a that are engaged and transmitted with the three staring star wheels 20a,. And a single non-engaged stirrer star wheel 20a, and the pair of stirrer star wheels 20a, 20a and one streak star wheel 20a are connected to the middle left stock former 43 or the middle right strain. Since they are driven independently from the original transport body 44, the meshing of the stirrer star wheels 20a can be further reduced (two or less), further preventing an increase in transmission load and wear of the stirrer star wheel 20a. Thus, better scraping and conveying performance can be maintained.

It is a front view of a combine. It is a left view of a combine. It is a left view of the pre-processing part of a combine. It is a top view which shows the corn straw conveying apparatus and the corn straw scraping body of the pre-processing part which employ | adopted the grain straw scraping body which is 1st Example. It is a front view (partially expanded view) which shows transmission structures, such as a transmission cylinder of a pre-processing part same as the above, and a driving wheel, (A) shows a transmission structure to a grain feeder especially, (B) is especially a grain basket. The transmission structure to the drive-in body and the pulling device is shown. It is a transmission system diagram of a pre-processing part same as the above. It is sectional drawing of the stirring star wheel part of a pre-processing part same as the above. It is a transmission system diagram of the pre-processing part which employ | adopted the corn straw scraper which is 2nd Example. It is a front view (partially developed view) showing a transmission structure such as a transmission cylinder and a drive wheel of the pre-treatment unit adopting the culm scraper that is the third embodiment, in particular, the pelt scraper and the pulling device. is there. It is a transmission system diagram of a pre-processing part same as the above.

  The basic structure of a seven-stripe combine that employs the present invention will be described with reference to FIGS. 1 to 3. The combine includes a crawler-type traveling device 2 at the bottom of the fuselage 1, and the number of trimming strips in front of the fuselage 1 is seven. The pre-processing unit 3 of the strip is mounted so that it can be raised and lowered, and the left side (one side) of the forward direction of the machine body is behind the pre-processing unit 3 and the cereals harvested and conveyed by the pre-processing unit 3 are inherited and subjected to threshing selection processing. A threshing unit 4 is mounted, and a cocoon processing unit 5 is provided behind the threshing unit 4 to cut the threshed waste.

  Moreover, the grain tank which stores the operation | movement operation part 6 with a cabin in the right side (other side) of the body behind the raising apparatus 10 mentioned later of the pre-processing part 3, and stores the grain selected by the threshing part 4 behind it. 7 is provided. Reference numeral 8 denotes a grain discharge auger that discharges the grain stored in the grain tank 7 to a transport vehicle outside the machine, and the lower end of the grain discharge auger 8 communicates with the grain tank 7. 8 is configured to be horizontally rotatable and undulating.

Next, based on FIGS. 1-7, the structure of the pre-processing part 3 which employ | adopted the culm scraped body of 1st Example is demonstrated.
The pre-processing unit 3 scrapes the induced cereals, eight weeding bodies 9 for weeding the cereals planted in the field, seven triggering devices 10 for causing the weeded cereals The cereal conveying device for transferring the cereals harvested by the seven cereal scraping bodies 20, the cutting blade 11, and the cutting blade 11 to the rear threshing unit 4, inherited from the cereal scraping body 20. 30, a vertical transmission cylinder 12 having a vertical transmission shaft 12a for input, a horizontal transmission cylinder 13 fixed to the lower end of the vertical transmission cylinder 12 and having a horizontal transmission shaft 13a, and standing from the left end side of the horizontal transmission cylinder 13 Pulling longitudinal transmission cylinder 14 having a pulling vertical transmission shaft 14a for the apparatus 10..., And pulling lateral transmission 15 a fixed to the upper part of the pulling vertical transmission cylinder 14 and having a pulling lateral transmission shaft 15 a for transmission to each pulling apparatus 10. The left and right ends of the cylinder 15 and the horizontal transmission cylinder 13 are fixed to the left and right ends, and the weed body 9 is fixed to the tip. 6 of the weeding frames 16, 16, the right and left weeding frames 16, 16 are connected, the horizontal frame 17 supports the cutting blade 11 and the like, and the base is fixed to the horizontal frame 17 and the weeding body 9 is fixed to the tip. It consists of weeding frames 16, etc.

The pulling lateral transmission cylinder 15 is provided with five pulling distribution cylinders 18 provided with pulling distribution shafts 18a for distributing and transmitting to the respective pulling devices 10,... The upper part of each pulling device 10 is supported.
The vertical transmission cylinder 12 is mounted on the machine body 1 so as to be pivotable up and down about the horizontal axis Y. The vertical transmission cylinder 12 is vertically extended by a telescopic operation of a hydraulic cylinder (not shown) provided between the vertical transmission cylinder 12 and the machine body 1. The transmission cylinder 12 is configured to rotate up and down about the horizontal axis Y, so that the entire pretreatment unit 3 moves up and down.

Each cereal scraper 20... Is a squeezed star wheel 20 a that rakes the root part of the cereal, and a locking scraper 20 b that squeezes the stem part of the cedar above it. Each of the stir-in star wheels 20a is supported by a support shaft 20c. Further, each of the locking scrapers 20b... Is constituted by a protruding scraping belt.
As shown in FIGS. 4 to 6 and the like, the seven scraping star wheels 20a are arranged in the left and right direction at the front lower position of the pretreatment unit 3, and all the stirring star wheels 20a are the same shape. And it is comprised so that it may drive with the same rotation speed.
In the drawing, the arrow “a” in the vicinity of the staring star wheel 20a... Indicates the rotation direction of each staring star wheel 21a.

  The grain feeder 30 includes a stock transporter 40 and a tip transporter 50 located behind the stir star wheel 20a, and the stock transporter 40 is located in front of the preprocessing unit 3 in plan view. Left stock transporter 41 disposed in an inclined manner from the left end side toward the rear inner side (right side), and a right stock disposed in an inclined manner from the front right end side of the pretreatment unit 3 toward the rear inner side (left side). The former transport body 42, the middle left stock former transport body 43 located on the left side of the front center portion of the pretreatment section 3, the middle right stock former transport body 44 located on the right side of the front center section of the pretreatment section 3, and the rear It is comprised with the handling deep conveyance body 45 and the relay conveyance body 46 which takes over cereals from the handling depth conveyance body 45 to the threshing feed chain 4a.

  The tip carrier 50 includes upper and lower two-stage left ear tips 51 and 51 located above the left stock transporter 41 and two upper and lower right tips located above the right stock transporter 42. Two upper and lower two-stage middle left tip carrier bodies 53 and 53 located above the middle left stock transport body 43 and two upper and lower stages located above the middle right stock transport body 44 The middle right tip carrier 54, 54.

Next, the transmission structure of the stock transporter 40 and each of the stir-in star wheels 20a will be described.
The left stock transporter 41 is integrally supported by a drive sprocket (driving wheel) 41a fixed to a transmission shaft 41c transmitted from the pulling vertical transmission shaft 14a and a support shaft 20c of the leftmost stir star wheel 20a. The feed chain is hung around a fixed driven sprocket (driven wheel) 41b, etc., and the leftmost staring star wheel 20a is engaged with the second staring star wheel 20a and transmitted to the left stocker. The leftmost scraping star wheel 20a and the second scratching star wheel 20a from the left are driven via the body 41.

  The right stock former transport body 42 is integrally supported and fixed to a driving sprocket (driving wheel) 42a fixed to a transmission shaft 42c transmitted from the vertical transmission shaft 12a and a support shaft 20c of the rightmost end staring star wheel 20a. The feed chain is wound around a driven sprocket (driven wheel) 42b and the like, and the rightmost stocking star wheel 20a is engaged with the rightmost stocking star wheel 20a and transmitted, whereby the right stock carrier 42 Through the rightmost drive star wheel 20a and the second drive star wheel 20a from the right.

  The middle left stock transporter 43 is integrally formed with a driving sprocket (driving wheel) 43a fixed to the transmission shaft 43c transmitted from the vertical transmission shaft 12a and a support shaft 20c of the third stir star wheel 20a from the left. A feed chain is hung around a supported sprocket (driven wheel) 43b and the like which is supported and fixed, and meshes sequentially from the third stir star wheel 20a from the left to the fourth and fifth stir star wheels 20a and 20a from the left. Accordingly, the three strewn star wheels 20a... At the center are driven via the middle left stock transporter 43.

  The middle right stock transporter 44 freely rotates on a driving sprocket (driving wheel) 44a fixed to the transmission shaft 44c transmitted from the vertical transmission shaft 12a and a support shaft 20c of the fourth stir star wheel 20a from the left. The feed chain is hung around a driven sprocket (driven wheel) 44b and the like that are freely fitted and supported. As described above, the support shaft 20c and the drive sprocket 44a have a non-transmission structure.

FIG. 7 shows the support structure of the driven sprockets 43b, 44b and the driven star wheels 20a, 20a with respect to the support shafts 20c, 20c. The driven sprocket 43b and the driven star wheels 20a, 20a are respectively connected to the support shafts. 20c and 20c are fixed so as not to rotate by keys 20d, respectively, and the driven sprocket 44b is supported on the support shaft 20c by a bearing 20e so as to freely rotate.
As a result, the driven sprocket 43b of the middle left stock carrier 43, the driven sprocket 44b of the middle right stock carrier 44, and the two supported by the respective spindles 20c and 20c that support the both driven sprockets 43b and 44b. Any one of the driven star wheels 20a, 20a, that is, the driven sprocket 44b, is externally supported by the support shaft 20c so as to freely rotate, and the remaining three, that is, the driven sprocket 43b and the two driven star wheels 20a. , 20a are integrally supported and fixed to the support shafts 20c, 20c so as not to freely rotate.
Reference numeral 20f denotes a drive wheel of the locking scraper 20b, and the drive wheel 20f is also supported and fixed to the support shaft 20c by a key 20d so as not to freely rotate.

Moreover, as shown in FIGS. 4-6, the tooth part of the 2nd stirring star wheel 20a from the left and the tooth part of the 3rd stirring star wheel 20a from the left adjacent to this are spaced apart right and left. The tooth portion of the fifth staring star wheel 20a from the left and the tooth portion of the second staring star wheel 20a from the right adjacent to this are overlapped in plan view, but are viewed from the front. And are separated from each other in the vertical direction.
The leftmost, second from the left, rightmost, and second from the right, the four scratching star wheels 20a,... Are located at the same height. The three staring star wheels 20a... At the center are positioned at a low position.

As described above, the drive sprocket 41a of the left stock transporter 41 is driven from the lateral transmission shaft 13a via the vertical drive shaft 14a and the transmission shaft 41c, and the right stock transporter 42, the middle left stock The drive sprockets 42a, 43a, 44a of the original transport body 43 and the middle right stock transport body 44 are driven separately from the middle of the vertical transmission shaft 12a via the transmission shafts 42c, 43c, 44c, respectively. , The left stock transport body 41, the right stock transport body 42, the middle left stock transport body 43, and the middle right stock transport body 44 have a transmission system in a serial (subordinate) relationship, that is, a transmission upper side or a lower side. Without being, each is configured to be independently driven by drive sprockets 41a, 42a, 43a, 44a that are individually transmitted in parallel.
Although not shown in the figure, a conveyance torque limiter is provided at each of the drive sprockets 41a, 42a, 43a, 44a.

The handling depth transport body 45 is configured by a feed chain being wound around a drive sprocket 45a and a driven sprocket fixed to a transmission shaft 45c transmitted from the transmission shaft 42c of the right stock transport body 42, and the relay transport. The body 46 is configured by a feed chain being wound around a drive sprocket 46a and a driven sprocket fixed to a transmission shaft 46c transmitted from the vertical transmission shaft 12a.
Further, each of the locking scrapers 20b is driven by a drive pulley 20f fixed to the upper portion of the support shaft 20c of the scraping star wheel 20a.

Next, the transmission configuration of the tip carrier 50 will be described.
On the upper part of the transmission shafts 41c, 43c, 44c of the left stock transport body 41, the middle left stock transport body 43, and the middle right stock transport body 44, the upper and lower left-hand tip transport bodies 51, 51 and the middle The driving wheels 51a, 53a, 54a of the left tip carrier 53, 53 and the middle right tip carrier 54, 54 are fixed, and the lower right tip carrier 52 is driven above the transmission shaft 46c of the relay carrier 46. The ring 52a is fixed. The upper right-hand tip carrier 52 is driven from the driven wheel at the tip of the lower right-hand tip carrier 52.

  Then, as shown in FIG. 6, power from an engine (not shown) mounted on the machine body 1 is input to the transport HST 60, and the power shifted by the transport HST 60 is transmitted to the input pulley 3 a of the preprocessing unit 3. Thus, the longitudinal transmission shaft 12a is driven, and power is transmitted from the longitudinal transmission shaft 12a and the lateral transmission shaft 13a transmitted from the lower end of the longitudinal transmission shaft 12a to each part of the preprocessing unit 3.

Next, description will be made on the scraping and conveying action of the cereal in the first embodiment of the present invention.
One of the embodiments of the present invention (first example) is as described above, and in the harvesting work by the combine, the 7 grain culms caused by the pulling device 10... At the same time as being scraped by 20, the blade is cut by the cutting blade 11 and transferred from the culm scraper 20 to the culm transporting device 30.

  And the leftmost end and the second cereal scraper 20 and 20 from the left, that is, the leftmost end and the second scraper star wheels 20a and 20a from the left and the locked scrapers 20b and 20b 2 The cereal grains are transported toward the rear right by the left stock former transport body 41 and the left tip transport body 51, 51, and are scraped by the third stir starwheel 20a and the locking scraper 20b from the left. The cereal grains for one row are transported rearward by the middle left stock transport body 43 and the middle left stock transport body 53, 53, and are taken over by the left stock transport body 41 and the left stock transport body 51, 51. The two cereal rice cakes that have been joined by the 4th and 5th stir star wheels 20a, 20a and the locking scrapers 20b, 20b from the left, It is transported backward by the middle right tip carrier 54, 54, and the right stock former carrier 42 and the right tip transport 52 cereals that have been taken over by 52 and joined by the 6th and the rightmost scraping star wheels 20a, 20a and the locking scrapers 20b, 20b from the left 42 and the right-handed tip transport bodies 52, 52 are transported toward the rear left.

  The seven cereal grains transported by the left stock transport body 41 and the right stock transport body 42 are merged and adjusted by the deep handling transport body 45, and the threshing feed chain is adjusted via the relay transport body 46. It is taken over by 4a and is threshed by the threshing unit 4.

Next, the function and effect of the first embodiment of the present invention will be described.
As described above, in the first embodiment, the left stocker carrier 41 drives the second leftmost starwheel 20a, 20a from the left end and the left stockwheel 20a, 20a. 2 cereal grains are transported, and the right stock former transport body 42 drives the rightmost end and the second streak star wheel 20a from the right, and is scraped by the two streak star wheels 20a and 20a. The cereal grains are transported, and the middle 3 left stock former transport body 43 or the middle right stock former transport body 44 (in the first embodiment, the middle left stock former transport body 43), the three stir-up star wheels 20a in the center. .. is driven, and the two left-handed grains of cereals scraped by the two adjacent stirrer star wheels 20a, 20a among the three stirrer star wheels 20a. 43 or middle right stock former carrier 44 (first implementation In the middle right stock former transport body 44), the remaining one portion of the cereals scraped by the remaining one star wheel 20a is transferred to the middle left stock former transport body 43 or the middle right stock former transport body 44. Either the other (in the first embodiment, the middle left stock transporter 43) transports the cereal to the middle left stock transport 43 or the middle right stock transport 44 that transports the above-mentioned cereals. The scraping star wheel 20a to be fed and the second scratching star wheel 20a from the left or right adjacent to the staring wheel 20a (the second scratching star wheel 20a from the left in the first embodiment) are left and right in plan view. The two stir star wheels 20a that are separated into a non-engaged state and scrape the cereals into the middle left stock transporter 43 or the middle right stock transporter 44 that transports the above-mentioned two cereals. The outer side of the starred star wheel 20a (in the first embodiment, the right side And the second star wheel 20a from the left or right adjacent to it (in the first embodiment, the second scratched star wheel 20a from the right in the first embodiment) are superposed in a plan view but vertically in a front view. The stock transporters 41, 42, 43, 44 are independently driven by input drive wheels 41 a, 42 a, 43 a, 44 a that are individually transmitted in parallel. It is comprised so that it may do.

  And, with this configuration, while being a 7-cut combine, as in the past, a single input drive wheel can be used without driving multiple stock transporters and as many as 5 stir-up star wheels. The stock drive body 41, the right stock transport body 42, the middle left stock transport body 43, and the middle right stock transport body 44 are individually driven in parallel and input drive wheels 41a, 42a, 43a, 44a can reduce the number of scraped star wheels 20a that are independently driven and driven from a single drive wheel (three or less). Without increasing, the load applied to each input driving wheel 41a, 42a, 43a, 44a is properly distributed and driven by each stock transporter 41, 42, 43, 44 and the stir-up star wheel 20a,. Scraping due to lack of force It can prevent improper frequent operation, etc. of the clogging or the transport torque limiter.

In addition, the number of driven stirrer star wheels 20a sequentially meshed and transmitted from a single stirrer star wheel 20a as a driving source is reduced to two or less, and in particular, added to the stirrer star wheel 20a as a driving source. It is possible to reduce the meshing driving load (grain squeezing load) and prevent the premature wear of the staring star wheel 20a.
Therefore, it is possible to provide a seven-stripe combine with good scraping and conveying performance.

  Furthermore, a stir star wheel 20a that scrapes and supplies the rice cake to the middle left stock transport body 43 that conveys one portion of the rice cake of the central portion, and a second star wheel 20a from the left adjacent to this, Since it was made into the non-meshing state by separating left and right in a plan view, the adjacent second staring star wheel 20a from the left is a staring star wheel 20a that supplies the cereal to the middle left stock transporter 43. It does not interfere with the scraping by acting on the pestle to be scraped (the both staring star wheels 20a, 20a rotate in the same direction, and the scraping direction is reversed on the opposite surface).

  Also, the outer right side (right side) of the two stir star wheels 20a, 20a that scrape and supply the cereal to the middle right stock transporter 44 that transports the cereals for the two strips in the center. Since the star wheel 20a and the second scratched star wheel 20a from the right adjacent to the star wheel 20a are superposed in a plan view but separated from each other in a vertical direction in a front view, the star wheel 20a, 20a As a result of the polymerization, the overall width of the seven scratched star wheels 20a,.

  Further, in the first embodiment, the driven wheel 43b of the middle left stock transporter 43 that transmits the above-mentioned cereal grains by meshing and transmitting the three strewn star wheels 20a. Is supported by the support shaft 20c of the stirrer star wheel 20a that stirs and supplies the cereals to the middle left stock transporter 43, and the driven wheel of the middle right stock transporter 44 that transports the two cereals. 44b is supported on the support shaft 20c of either one of the two stirring star wheels 20a, 20a (left-side stirring star wheel 20a) that scrapes and supplies the cereals to the middle right stock transporter 44. , Two driven scrapers supported by the driven wheels 43b of the middle left stock transport body 43, the driven wheels 44b of the middle right stock transport body 44, and the supporting shafts 20c and 20c that support the both driven wheels 43b and 44b. One of the star wheels 20a, 20a (the driven wheel 4 b) is externally supported by the support shaft 20c so as to be freely rotatable, and the remaining three (the driven wheel 43b and the two stir-up star wheels 20a, 20a) are integrated with the support shafts 20c, 20c so as not to freely rotate. It is supported and fixed to.

And by this structure, it is possible to easily drive the gears by meshing and transmitting the three scavenging star wheels 20a in the central part, and the three scavenging star wheels 20a in the central part. .. can be configured to have the same height, and the scraping performance can be improved, while the three starred star wheels 20a in the center are the middle left stock carrier 43. Alternatively, it is driven from only one of the middle right stocker transport bodies 44 (driven from the middle left stock transporter 43 in the first embodiment), so that a plurality of systems are supplied to the three stirring star wheels 20a. To prevent the occurrence of lock or abnormal meshing at the meshing portion of the driven star wheels 20a due to the simultaneous transmission of the forced driving force from each other, and the deformation and damage of the driven star wheel 20a and the transmission system due to this It can be.
Further, the driven wheel 44b is externally fitted and supported on the support shaft 20c so as to freely rotate, and the remaining driven wheel 43b and the two stir-up star wheels 20a and 20a are integrated with the support shafts 20c and 20c so as not to freely rotate. As a result, the support structure of the driven wheel 44b and the two driven star wheels 20a and 20a as well as the support structure of the driven wheel 44b can be easily made using the support shaft 20c.

Next, a second embodiment of the present invention will be described.
FIG. 8: shows the transmission system figure of the pre-processing part 3 which employ | adopted the cereal scraper which is a 2nd Example.
The thing of this 2nd Example was scraped by two adjacent staring star wheels 20a and 20a in three centering staring star wheels 20a ... in the central part to the first example. Two cereal grains are transported by the middle left stock transporter 43, and the remaining one portion of the cereals are transported by the middle right stock transporter 44, A planer view of a stirrer star wheel 20a that scrapes and supplies the persimmons to the middle right stock transporter 44 that transports the above-mentioned one portion of the persimmons, and a second stirrer star wheel 20a from the right adjacent thereto The left and right sides are separated from each other and brought into a non-engagement state, and the two left stirrer wheels 20a near the outside of the two left star wheels 20a are fed into the middle left stock former transport body 43 that conveys the above two stalks of rice cake (see FIG. Left side) stir star wheel 20a and the second from the left adjacent to it The terwheel 20a is superposed in a plan view but separated in the vertical direction in a front view to be in a non-engaged state, and the driven wheel 43b of the middle left stock transport body 43 and the middle right stock transport body 44 One of the driven wheel 44b and the two stirrer star wheels 20a, 20a supported by the supporting shafts 20c, 20c that support the driven wheels 43b, 44b (the supporting shaft 20c that supports the driven wheel 44b). Is supported by a supporting shaft 20c that supports the remaining three (driven wheel 43b, driven wheel 44b, and driven wheel 43b). The specific structure is different in that the driven star wheel 20a) is integrally supported and fixed to the support shafts 20c and 20c so as not to freely rotate, and the other structure is the same as that of the first embodiment.

  The second embodiment also has the same effects as the first embodiment, and the second embodiment has the three inner star wheels 20a,. Since the left and right scratching star wheels 20a and 20a are engaged with each other by using the middle staring star wheel 20a as a driving source, two pieces are provided from one side of the end staring star wheel 20a as in the first embodiment. Thus, the load applied to one tooth portion of the drive staring star wheel 20a is smaller than that in which the staring star wheels 20a and 20a are sequentially meshed and transmitted, and the wear of the staring star wheel 20a can be further prevented.

Next, a third embodiment of the present invention will be described.
9 and 10 show the pretreatment unit 3 that employs the culm scraped body 20 according to the third embodiment.
The third embodiment is different from the first embodiment in that the driven wheel 43b of the middle left stock former transport body 43 that transports one portion of the grain straw is transferred to the middle left stock former transport body 43. The driven wheel 44b of the middle right stock transporter 44, which supports and is fixed to the support shaft 20c of the stirrer star wheel 20a so as to be unable to freely rotate and conveys the two grains, The right stocker transporting body 44 is scraped and supplied to the right stock transporter 44. The left and right two stirring star wheels 20a and 20a (left side) support shaft 20c is integrally supported and fixed so as not to freely rotate. A stir star wheel 20a that engages and transmits two left and right stir star wheels 20a, 20a, and feeds the cereal into the middle left stock transporter 43 that transports the cereal for the above-mentioned 1 streak, and 2 The left side of the middle right stocker transporting body 44 that feeds the cereals and supplies the cereals. The scraping star wheel 20a, but polymerized in a plan view and differences point to a non-meshing state is separated in the vertical direction in a front view, the other structure is the same as the first embodiment.

  In addition, the stirring star wheel 20a that stirs and supplies the cereal meal to the middle left stock transport body 43 is supplied to the left and right two stir star wheels 20a and 20a. It is located further upward and is located at the same height as the first and second scratching star wheels 20a and 20a from the left and the first and second scratching star wheels 20a and 20a from the right.

  And the thing of the 3rd example has the effect of the invention concerning claim 1, and furthermore, a pair of stirrer star wheels 20a which are meshed and transmitted to the three stirrer star wheels 20a in the central part. , 20a and one non-engagement of the stirrer star wheel 20a, and the pair of stirrer star wheels 20a, 20a and one stirrer star wheel 20a and the middle left stock carrier 43 and the middle Since they are driven independently from the right stock former transport body 44, the meshing transmission between the driven star wheels 20a is further reduced to 2 or less, and the transmission load on the driven star wheel 20a is increased or the driven star wheel 20a is engaged. It is possible to further prevent wear and maintain better scraping and conveying performance.

  The first and second embodiments show embodiments corresponding to the inventions according to claims 1 and 2, and the third embodiment shows an embodiment corresponding to the inventions according to claims 1 and 3. Is.

  In the embodiment shown in FIGS. 6 and 8, the left side of the left side of the three starred star wheels 20a, and the left side of the seven starred star wheels 20a,. The second stiffening star wheel 20a and the right side of the three stirring star wheels 20a, and the right side of the seven stirring star wheels 20a,. It is also possible to change the structure so that all the seven stirrer star wheels 20a,... .

  In this case, the embodiment does not correspond to the invention according to claim 1, but, like the invention according to claim 1, the scraping transport performance is good, and the middle left stock former transport body 43 Of the driven wheel 43b, the driven wheel 44b of the middle right stock carrier 44, and the two driven star wheels 20a, 20a supported by the support shafts 20c, 20c that support both the driven wheels 43b, 44b, Any one of them is fitted and supported on the support shaft 20c so as to be freely rotatable, and the remaining three are supported and fixed on the support shafts 20c and 20c so as not to freely rotate. In addition, by arranging the seven stir-up star wheels 20a at the same height, it is possible to further improve the persimmon scraping performance and the persimmon root gathering performance that is cut and conveyed.

  Similarly, in the embodiment shown in FIG. 10, the left and right scratched star wheels 20 a and 20 a that are superposed in a plan view but separated in the vertical direction in a front view to be in an unengaged state are both left and right in a plan view. It is also possible to change the structure so that the seven engaged star wheels 20a.. Also in this case, good scraping and conveying performance can be maintained.

DESCRIPTION OF SYMBOLS 1 Airframe 3 Pre-processing part 4 Threshing part 6 Driving | operation operation part 20a Stirring star wheel 20c Support axis 40 Stock former carrier 41 Left stock former carrier 42 Right stock former carrier 43 Middle left stock former carrier 44 Middle right stock origin Carrier 41a, 42a, 43a, 44a Drive sprocket (drive wheel)
41b, 42b, 43b, 44b Driven sprocket (driven wheel)

Claims (3)

  The body (1) is provided with a pre-processing section (3) having seven cutting lines, and the pre-processing section (3) includes seven scratched star wheels (20a .) And a stock transporter (40) for transporting the cereals scraped by the stir-up star wheel (20a...) Backward, the stock transporter (40) being a flat surface. From the front left end side of the pretreatment unit (3) to the rear right side, the left stock transporter (41) disposed in an inclined manner, and from the front right end side of the pretreatment unit (3) to the rear left side. The right stock transporter (42) disposed in an inclined manner, the middle left stock transporter (43) located on the left side of the front center portion of the pretreatment section (3), and the front center of the pretreatment section (3) In a seven-row harvesting combine having a middle right stock transporter (44) located on the right side of the section, the left stock transporter (41) The second stirrer star wheel (20a, 20a) is driven to transport the two cereals squeezed by both stirrer star wheels (20a, 20a), and the right stock former transporter (42) To drive the rightmost end and the second stirrer star wheel (20a, 20a) from the right to convey the cereals of the two stalks that have been scraped by both stirrer star wheels (20a, 20a). Three stock star wheels (20a,...) Are driven by the stock transporter (43) or the middle right stock transport (44), and the three scrap star wheels (20a,.) Are driven. Of the two cereals scraped by two adjacent starking wheels (20a, 20a) of the middle left stock transporter (43) or middle right stock transporter (44) On the other hand, it is transported and scraped by the remaining one stir-up star wheel (20a). The middle left strain that conveys the cereal of 1 cereal for the above-mentioned 1 lane and transports the cereal of 1 row of cereals that is fed by either the middle left stock transporter (43) or the middle right stock transporter (44) Stirring star wheel (20a) that stirs and supplies cereal grains to the former transport body (43) or the middle right stock former transport body (44), and the second streak star from the left or the second from the right adjacent thereto The wheel (20a) is separated from the left and right in a plan view to be in a non-engaged state, and the grain is transferred to the middle left stock transporter (43) or the middle right stock transporter (44) that transports the above-mentioned two cereals Of the two stirrer star wheels (20a, 20a) for scoring and supplying the scissors, the stirrer star wheel (20a) closer to the outside and the second star wheel from the left or the second star wheel from the right adjacent thereto ( 20a) is superposed in a plan view but is separated in the vertical direction so that it is not engaged. The left stock former transport body (41), right stock former transport body (42), middle left stock former transport body (43) and middle right stock former transport body (44) are each independently transmitted in parallel. 7-row harvesting combine, wherein the drive wheels (41a, 42a, 43a, 44a) are independently driven.   The middle left stock transporter (43) or the middle right stock transporter (44) that transmits the above-mentioned cereal grains by meshing and transmitting the three strewn star wheels (20a,...) At the center. ) Of the driven wheel (43b, 44b) is supported on the support shaft (20c) of the stirrer star wheel (20a) that feeds the cereals into the stock transporter and transports the cereals for two lanes. The two left star wheels (43b, 44b) of the middle left stock transporter (43) or the middle right stock transporter (44) are fed into the stock transporter by scraping and supplying cereal grains. 20a, 20a) and a driven wheel (43b) of the middle left stock carrier (43) and a driven wheel (44b) of the middle right stock carrier (44). ) And two stirrer stars supported by the support shafts (20c, 20c) that support both driven wheels (43b, 44b) One of the wheels (20a, 20a) is externally fitted and supported on the support shaft (20c) so that it can freely rotate, and the remaining three are supported and fixed on the support shafts (20c, 20c) so that they cannot rotate freely. The seven-stripe combine according to claim 1, wherein the combine is cut.   The left wheel former transporter (43) or the middle right stock former transporter (44) driven wheel (43b, 44b) that transports the above-mentioned grain straw is scraped into the stock former transporter. The middle left stock transporter (43) or middle right stock transport that supports and fixes the spindle (20c) of the supplied stirrer star wheel (20a) so as not to freely rotate and transports the above two cereal grains. The driven wheel (43b, 44b) of the body (44) is fed to one of the two support shafts (20c) of the two stirrer star wheels (20a, 20a) that feed the cereals into the stock transporter. The middle left stock transporter (43) or the middle right, which is supported and fixed so as not to freely rotate, meshes and transmits these two stir star wheels (20a, 20a), and conveys the above-mentioned cereal cereals. A stir star wheel (20a) that stirs and supplies cereal meal to the stock transporter (44), Stirring star wheel that is adjacent to the tar wheel (20a) and feeds the cereals into the middle left stock transporter (43) or the middle right stock transporter (44) that transports the two cereals. The seven-stripe combine according to claim 1, wherein one of the stirrer star wheels (20a) of 20a, 20a is superposed in a plan view but separated in the vertical direction to be in an unengaged state.

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