JP3837009B2 - Three-row combine harvester - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a corn straw conveyor for a triple- cutting combine.
[0002]
[Prior art]
For example, a conventional three-crop combine harvester conveying device includes a mowing unit, a pulling device, a scraping conveying body, and the like in a pre-processing unit, and a handling depth mechanism on the main body side. That is, as shown in FIG. 3, for example, the culm transporting apparatus includes a left culm scooping transport body 1 l located on the left side when viewed from the cockpit side of the combine, and a right stalk curing transporting body 1 r positioned on the right side. , A central central culm scraping transport body 1c, and a handling depth transport body in which the culms harvested by the cutting blade 2 are guided from the respective culm scooping transport bodies 1l, 1c, 1r via the junction 4 3 is provided.
[0003]
The left cereal scraping transport body 1l has a left star wheel 5l and a transport belt 6l disposed coaxially above the left star wheel 5l. It has a star wheel 5r and a conveyor belt 6r arranged coaxially above the right star wheel 5r. Similarly, the central grain scraping transport body 1c includes a central star wheel 5c and a transport belt 6c disposed coaxially on the upper side of the central star wheel 5c. The left star wheel 5l and the central star wheel 5c are meshed with each other so that the rotation of the left star wheel 5l is transmitted to the central star wheel 5c, and the right star wheel 5r is driven to rotate independently. It is like that.
[0004]
Also, the left cereal scraping transport body 1l is wound on the left star wheel 5l on one side, the left stalk holding and transporting chain 7l that scrapes the harvested cereal stock, and the cereal transporting direction. , And clawed chains 8 l and 9 l that scrape the ear part and stem part of the grain basket. The right cereal scraping transport body 1r has one side wound around the right star wheel 5r, and a right stalk holding and transporting chain 7r that scrapes the harvested cereal stock, and along the cereal transporting direction. And nail-carrying locking chain chains 8r and 9r that are arranged vertically and scrape the ear part and stem part of the cereal. Then, one side of the lower claw locking transport chain 8l and the upper claw locking transport chain 9l is wound around a coaxial sprocket 10l, and this sprocket 10l is a drive shaft in a transmission shaft cylinder (not shown). Is powered by Further, one side of the upper claw-carrying and conveying chain 8r with the claw and the lower claw-carrying and conveying chain 9r is wound around a coaxial sprocket 10r, and the sprocket 10r is a drive shaft in a transmission shaft cylinder (not shown). Is powered by Furthermore, the other side of the left stock holding / carrying chain 7l approaches the other side of the right stock holding / carrying chain 7r to form the junction 4.
[0005]
The handling depth transport body 3 is supported on the machine body side so that the handling depth can be adjusted, and includes a stock holding-carrying transport chain 11 for transporting the stock and a tip locking transport chain 12 for transporting the tip. Thus, the leading end in the transport direction of the left stock holding / carrying chain 7l is provided along the right stock holding / carrying chain 7r closest to the leading end in the transporting direction of the right stock holding / carrying chain 7r. .
[0006]
The thus-configured three-crop combine corn straw transporter raises the corn straw with the pulling device 13, cuts the corn straw with the cutting blade 2, the central corn straw pick-up carrier 1 c and the left corn straw. 2 grain pestle is raked in between 1 l of the pick-up carrier. Then, the cereal is scraped by the conveyor belts 6l and 6c, and is conveyed to the merging portion 3 side by the stock holding and conveying chain 7l and the latched and conveying chains 8l and 9l. Similarly, the raising device 13 raises the cereal, the mowing blade 2 cuts the cereal, and the right side culm scooping transport body 1r scrapes one cereal. Then, the cereal is scraped by the transport belt 6r and transported to the junction 3 side by the stock holding and transport chain 7r and the hooked transport chains 8r and 9r. Next, the two cereal grains transported by the stock holding / carrying chain 71 and the claw-carrying locking chains 8l, 9l are carried by the stock holding / carrying chain 7r and the claw-carrying / carrying chains 8r, 9r. Furthermore, it is merged at the merging portion 3 with the single cereal basket and further conveyed toward the threshing side feed chain 15 by the stock holding and conveying chain 11 and the tip locking conveying chain 12.
[0007]
[Problems to be solved by the invention]
In such a conventional combine harvester transport apparatus, the grain scraped by the transport belt 6r on the right side can be used as a handling depth side stock holder clamping transport chain 11 and a tip locking transport chain 12 on the handling depth side. In order to carry it, the cereals scraped by the carrying belt 6r are conveyed to the junction 4 while being delivered to the stock holding and carrying chain 7r and the hooked and locked carrying chains 8r and 9r. There is a risk of turbulent conveyance of cereals.
[0008]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a combine culm transporting apparatus that prevents the pre-processing unit from causing turbulent transport of cereals.
[0009]
[Means for Solving the Problems]
Therefore, in order to achieve the above object, in the combine culm conveying device according to claim 1 of the present invention, the culm raised by the plurality of pulling devices 23 is cut by the cutting blade 28, and the harvested culm is processed. Three strips that are fed through the left and right and middle grain scraping transport bodies 27l, 27r, and 27c, and then supplied to the threshing machine by the handling depth transport body 30 whose top end moves up and down with the rear portion as a fulcrum. In the harvester combine harvester, a left wheel harvester transporting body 27l is scraped and transported to the left side of the stock wheel 31l, and the left side stock holding and conveying chain 37l behind the star wheel 31l is locked to the tip side. It is comprised by the latching conveyance chains 40l and 41l with a nail | claw arrange | positioned up and down to convey, and motive power is transmitted from the transmission cylinder 38 below each latching conveyance chain 40l and 41l with a nail | claw. It is configured so as to be rotationally driven, and the right cereal scraping transport body 27r is configured by a star wheel 31r that scrapes and transports the right stock, and a right stock holding and transporting chain 37r behind the star wheel 31r, Further, the handling depth transport body 30 is constituted by the stock holding and transporting chain 43 and the tip locking transporting chain 44, and the end side of the right stock holding and transporting chain 37r is connected to the start end of the stock holding and transporting chain 43. On the other hand, the start end portion of the tip locking transport chain 44 constituting the handling depth transport body 30 is extended to the vicinity of the right star wheel 31r in a state of overlapping the top of the right stock holding and transporting chain 37r in plan view. The central culm scooping transport body 27c is also used by the start end portion of the spear locking transporting chain 44, which also serves as the spear-side locking transporting function of the right grain sprinkle transporting body 27r. Central star wheel 31c and the formation, culms of Article 2 which has been conveyed raking the left side of star wheel 31l, a plurality of pawl engaging the conveyor chain 40l arranged vertically, 41l and the left lines based nipping conveyor chain One lump that is conveyed to the merging portion side by 37 l and scraped and conveyed by the right star wheel 31 r is the starting end portion of the single tip locking conveying chain 44 that moves up and down according to the cocoon length and the right stock It is characterized in that it is configured to be conveyed to the merging portion side by the nipping and conveying chain 37r.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side view showing a first embodiment of the invention, and FIG. 2 is a plan view showing the first embodiment of the invention. As shown in FIG. 1, the combine cereal carrying device includes a cutting unit 22, a pulling device 23, and a squeeze carrying body and a handling depth carrying body 30, which will be described in detail later, in the preprocessing unit 21, as shown in FIG. Yes.
[0012]
The take-up transport body is composed of a left-side cereal pick-up transport body 27l located on the left side when viewed from the cockpit side of the combine, a right-side cereal pick-up transport body 27r located on the right side, and a central cereal pick-up drive located in the center. The transport body 27c and the merging portion 29 where the cocoons harvested by the cutting blade 28 merge from the respective culm scooping transport bodies 27l, 27c, 27r are provided.
[0013]
The left cereal scraping and transporting body 27l has a star wheel 31l that scrapes and transports the left side stock, a pulley 32l coaxial with the left star wheel 31l, and a shaft rotatably supported by the pretreatment unit support frame 33. It is wound on a supported roller 34l, wound on a conveyor belt 35l disposed above the left starwheel 31l, and a start end is wound on a sprocket (not shown) disposed coaxially with the left starwheel 31l. From a left stock holding and conveying chain 371 as a stock holding and transporting body wound around a sprocket 36 l that is pivotally supported by the processing unit support frame 33, and a drive shaft (not shown) in the transmission shaft cylinder 38. A claw-carrying transport chain 40l with a claw serving as a claw-side locking transport body that is wound around a sprocket 39l that is rotationally driven by power and scrapes the stem portion of the cereal. The winding is wound on the sprocket 39l, and a pawl engaging the conveyor chain 41l as the tip side locking carrier which rake in the tip of the culms into.
[0014]
The right corn straw scraping and conveying body 27r is pivotally supported by a star wheel 31r that scrapes and conveys the right corn straw, a pulley 32r coaxial with the right star wheel 31r, and a pre-processing unit support frame 33. Is wound around a roller 34r, and is wound around a conveyor belt 35r disposed above the right star wheel 31r, and a sprocket (not shown) disposed coaxially with the star wheel 31r, and the other side is described below. And a right stock holding and transporting chain 37r as a stock holding and transporting body extending below the transporting body 30. The right stock holding and transporting chain 37r is pivotally attached to the pre-processing unit support frame 33. It is supported by a sprocket 42 that is driven to rotate by receiving power from a drive shaft in the transmission shaft cylinder 38.
[0015]
Further, the central corn straw raking portion 27c is pivotally supported by a star wheel 31c that scrapes and conveys the central corn straw, a pulley 32c coaxial with the star wheel 31c, and a preprocessing portion support frame 33. And a conveyor belt 35c disposed above the star wheel 31c. The central star wheel 31c and the left star wheel 31l mesh with each other, and the rotation of the left star wheel 31l is centered. It is transmitted to the star wheel 31c. And in the said junction part 29, it is comprised so that the conveyance direction termination | terminus side of the left side stock holding pinch conveyance chain 37l may approach the conveyance surface of the right side stock pinching conveyance chain 37r most.
[0016]
The handling depth transport body 30 is rotatably supported by a support member 25a erected from the machine body 25 so that the rear portion can be adjusted in depth, and a stock holder clamping transport chain 43 for transporting stock stock It is provided with a tip locking transport chain 44 as a tip locking transport body for transporting the tip, and the tip locking transport chain 44 that is movable up and down with the rear portion as a fulcrum has a start end portion at the right side stock holding transport chain It extends along the upper side of the conveyance direction start end side of 37r. The end side of the tip-locking transport chain 44 is wound around a sprocket 45 that is driven to rotate by receiving power from the drive shaft in the transmission shaft case 48, and the sprocket 45 is pivoted to the body body 25 side. It is supported. Further, the holding and conveying chain 43 on the stock side receives power and transmits rotation independently from the drive shaft in the transmission shaft case 48.
[0017]
In FIG. 1, the preprocessing unit 21 is moved up and down by a hydraulic cylinder 50 via a transmission case 49. Numerals 46l and 46r are transmission shaft cases in which shafts for driving the left and right raising chains (not shown) of the raising device 23 are built in, and power is transmitted from the driving shaft in the transmission shaft cylinder 38 to the shafts. Reference numeral 46c denotes a transmission shaft case in which a shaft for driving a central pulling chain (not shown) is built in, and power is transmitted from the drive shaft in the transmission shaft cylinder 38 to the shaft. In FIG. 2, reference numeral 47 denotes a threshing part feed chain that inherits and conveys the cereals that are conveyed while the handling depth is adjusted by the stock holding and conveying chain 43 and the tip locking conveying chain 44.
[0018]
Next, the operation will be described.
The three-crop combine grain feeder conveys the grain with the pulling device 23 and harvests the grain with the cutting blade 28. Of the harvested corn straw, the left corn straw and the middle corn straw are scraped between the left corn straw picker transport body 27l and the central corn straw picker transport body 27c. Then, these two cereals are scraped and conveyed by the conveyor belts 35l and 35c, and are conveyed to the joining portion 29 side by the stock holding and conveying chain 37l on the left side and the latching and conveying chains 40l and 41l with claws. Similarly, the right side culm raised by the pulling device 23 and cut by the cutting blade 28 is scraped and conveyed by the conveying belt 35r. Then, the cereal is transported to the stock holding / carrying chain 37r and the tip locking transport chain 44 having the function of transporting the head side of the right side cereal through the transport belt 35r. The original is conveyed to the junction 29 side. In the merging unit 29, the two cereal grains transported from the left side cereal scraping transport body 27l and the 1 sorghum grain transported from the right side grain squeeze transport body 27r are merged, and the handling depth transport body Transport to 30 side.
[0019]
At this time, since the starting end portion of the stock holding-and-carrying transport chain 43 of the handling depth transport body 30 is extended to the vicinity of the joining portion 29, the stocked portion of the joined cereal is transferred by the stock-holding and transporting chain 43. Quick inheritance and less disruption of transport. And in this handling depth conveyance body 30, while adjusting the handling depth according to the length of the cereal, while conveying the stock of the culm by the stock holding and holding chain 43, The head is transported and transported toward the threshing part feed chain 47, but since the handling depth transport body 30 moves up and down at the rear fulcrum according to the length of the cereal, the start end of the tip locking transport chain 44 Even if the cocoon length changes, the appropriate position of the cereal cocoon is always handed over and conveyed by the tip-end locking and conveying chain 44.
[0020]
In this way, the right stock holding / carrying chain 37r that is driven independently of the left stock holding / carrying chain 37l extends to the vicinity of the handling depth carrying body 30, and the tip of the handling depth carrying body 30 is provided. Since the locking conveyance chain 44 is extended to the vicinity of the star wheel 31r of the right side grain scraping transport body 27r, the right side scraping that transports the spike part and the stem part of the grain seeds that have been conventionally required. An engagement conveyance chain with claws of the conveyance body 27r becomes unnecessary, and the weight of the pretreatment unit is reduced. In addition, by configuring as described above, the number of cereal handing over portions is reduced, and the handling depth transport body 30 can be transported without causing turbulence in the joining portion 29.
[0021]
In the above-described embodiment, the cereal conveying apparatus is described as applied to a combine that harvests three cereals. However, the present invention is not limited to this, and is applied to, for example, four or five combine. You can also.
[0022]
【The invention's effect】
As is apparent from the above description, according to the present invention, the culm raised by the plurality of pulling devices 23 is reaped by the reaping blade 28, and the harvested culm is transferred to the left and right and central culm scooping transport bodies 27l. , 27r, 27c, and then the left side grain in the grain cutting conveyor of the triple-cut combine that is supplied to the threshing machine by the handling depth conveying body 30 whose starting end moves up and down with the rear portion as a fulcrum. Starwheel 31l that stirs and conveys the left strainer through the scissor transporting body 27l, and the left-side strainer holding and transporting chain 37l behind the starwheel 31l and the claw disposed on the top and bottom that latches and transports the tip side In addition to the conveyance chains 40l and 41l, each claw-attached latching conveyance chain 40l and 41l is configured to be driven to rotate by receiving power from the lower transmission cylinder 38, and the right side grain. The stapling transport body 27r is composed of a star wheel 31r that scoops and transports the right stock, and a right stock holding and transporting chain 37r behind the star wheel 31r, and the handling depth transport body 30 is configured as a stock holding and transporting chain. 43 and a tip locking conveyance chain 44, and the end side of the right stock holding and holding chain 37 r is extended to the starting end of the stock holding and holding chain 43, while the handling depth carrying body 30 is constituted. The leading end portion of the tip locking transport chain 44 is extended to the vicinity of the right star wheel 31r in a state where it overlaps the top of the right stock holding and transporting chain 37r in plan view. And the central star wheel 31c constituting the central culm scooping transport body 27c, which also serves as the tip-side locking transport function of the right cereal scraping transport body 27r, and Culms of Article 2 which has been conveyed scraping the side of the star wheel 31l, a plurality of pawl engaging the conveyor chain 40l arranged vertically, while conveying the merging portion by 41l and left lines based nipping conveyor chain 37l The single grain cocoon scraped and conveyed by the right star wheel 31r is moved to the merging portion side by the start end portion of the single tip locking conveyance chain 44 that moves up and down according to the cocoon length and the right stock holding and conveying chain 37r. Since it comprised so that it might convey, the disorder | damage | failure of conveyance of a grain candy can be prevented as much as possible.
[0023]
In addition, since the tip locking engagement chain 44 that constitutes the handling depth conveying body 30 also serves as the tip side locking and conveying function of the right-handed raking conveying body 27r, even if the cereal is long or short, its length is short or long. Accordingly, it is possible to raise and lower the tip locking conveyance chain 44 and to reliably convey the cedar without any influence.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a side view illustrating a combine culm conveying device according to an embodiment of the present invention.
FIG. 2 is a plan view of the above.
FIG. 3 is a plan view showing an example of a conventional combine harvester conveying apparatus.
[Explanation of symbols]
23 Raising device 27l Left side grain scraping transport body 27r Right side grain scraping transport body 28 Cutting blade 29 Merge section 30 Handling depth transport body 31l Left star wheel 31r Right star wheel 37l Left stock holding and transporting chain 37r Right-side stock holding and transporting chain 41l Locking transport chain with pawl 43 Stock holding and transporting chain 44 Ear-tip holding and transporting chain 47 Threshing part feed chain

Claims (1)

The culm raised by the plurality of pulling devices (23) is reaped by the reaping blade (28), and the harvested culm is joined via the left and right and central culm scooping transport bodies (27l, 27r, 27c). In the cereal conveying apparatus of the triple-cut combine that is to be supplied to the threshing machine by the handling depth conveying body (30) whose starting end moves up and down with the rear as a fulcrum,
Starwheel (31l) that scrapes and conveys the left side stock through the left cereal scraping transport body (27l), and the left side stock holding and transporting chain (37l) behind the starwheel (31l) and the tip side are locked and transported. The claw-carrying and locking claw chains (40l and 41l) arranged at the top and bottom of the claw and rotating the claw-carrying and claw-carrying chains (40l and 41l) with the power from the lower transmission cylinder (38). Configured to drive,
The right cereal scraping transport body (27r) is composed of a star wheel (31r) that stirs and transports the right stock, and a right stock holding and transport chain (37r) behind the star wheel (31r),
Further, the handling depth transport body (30) is constituted by the stock holding medium transport chain (43) and the tip locking transport chain (44), and the terminal side of the right stock holding medium transport chain (37r) is connected to the stock base. While extending to the starting end of the holding and conveying chain (43), the starting end of the tip locking conveying chain (44) constituting the handling depth conveying body (30) is placed above the right stock holding and holding chain (37r). It extends to the vicinity of the right star wheel (31r) in a state of overlapping in a plan view, and the tip end side locking of the right cereal scooping transporting body (27r) by the start end of the tip end locking transporting chain (44) Combine the transport function,
The central star wheel (31c) constituting the central grain kneading and transporting body (27c) and the two rows of grain kneaded that have been scraped and conveyed by the left star wheel (31l) are a plurality of upper and lower grains . While the claw locking transport chain (40l, 41l) and the left-side stockholder clamping transport chain (37l) are transported to the merging part side, A triple-cutting combine characterized in that it is configured to be conveyed to the merging portion side by a starting end portion of a single tip locking conveyance chain (44) that moves up and down according to the length of the culm and a right side stock nipping conveyance chain (37r) Grain feeder.

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