JP2007074994A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester facilitating cleaning, inspecting and maintaining of a back part of raising devices in the harvester which parallelly installs a plurality of raising devices in front of a reaping section and parallelly installs right and left plurality of joining transporting devices provided with plant foot transporting devices and ear tip transporting devices and joins the flow of reaped grain culms at an intermediate position of the reaping width and transports joined grain culms by a feed conveyer to a threshing device. <P>SOLUTION: The invention relates to the combine harvester having a joining transporting pathway L constituted as openable by setting at least the raising devices 13 in the center side of the reaping width in the raising devices group 13 as upward turnable, and rearward shifting a conveying chain 17c having protrusions of the plant root-nipping and conveying mechanism 17A in the joined conveying apparatus 17 and the conveying chain 17f of the ear tip-holding and conveying mechanism 17B to a nipping rail 17d countering to the conveying chain 17c having protrusions, and a guide rod 17g countering to the transporting chain 17f. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a combine in which a plurality of pull-up devices are arranged in parallel on the left and right at the front portion of a cutting unit, and a predetermined pull-up device is supported so as to swing up and swing.

  In a self-removing combine, in general, a plurality of cereal grains that have been raised in a predetermined posture by the elevating device are harvested, and the harvested cereals are merged and conveyed to an intermediate position of the cutting width, and then fed to the supply conveyance device for supply. A corn straw transporting mode is adopted in which the corn straw in a laterally tilted posture transported rearward by the transport device is delivered and supplied to the starting end of a feed chain provided in the threshing device.

In the above-described grain haul transport mode, the corn-crop merging conveyance path and the mowing apparatus are raised and located at the back of the apparatus, so that it is difficult to remove the clogging of the grain and to perform the inspection and maintenance work of the mowing apparatus. Therefore, for example, as disclosed in Patent Document 1, a part of the central side among a plurality of pulling devices arranged in parallel at the front portion of the cutting unit is configured to be swingable and swingable. A configuration has been proposed in which clogging removal work and various inspection and maintenance work can be performed from a wide space opened by swinging up the apparatus.
JP 2004-81006 A

  The above-described structure that swings and opens the pulling device has the advantage that clogging removal and inspection and maintenance work can be performed from a wide working space in the merging and conveying path of the harvested cereal cocoon, but the wall is tightly packed in the merging and conveying path. The work itself for removing the debris is still troublesome and further improvements are desired.

  The present invention has been made paying attention to such points, and it is an object of the present invention to make it easier and easier to clean and inspect and maintain the back of the pulling device.

In the first invention, a plurality of pulling devices are arranged in parallel at the front portion of the cutting unit, and a plurality of merging and transporting devices including a stock transporting mechanism and a tip transporting mechanism are arranged on the left and right behind the pulling device. In a combine that is arranged in parallel and configured to merge and convey the harvested culm to the middle position of the cutting width, and configured to convey the merged cereal to the threshing device by the supply conveyance device,
A predetermined pulling device at least in the middle of the cutting width of the pulling device group is configured to be swingable and swingable, and the transfer chain with protrusions of the stock transport mechanism and the transport of the tip transport mechanism in some merging transport devices The chain is configured to retreat with respect to the holding rail that faces the transport chain with protrusions and the guide rod that faces the transport chain so that the merging transport path can be opened.

  According to the above configuration, by swinging up and swinging the predetermined pulling device at the center side of the cutting width, the front portion of the cutting portion can be opened widely, and the confluence conveying device at the back of the device can be greatly exposed. In the exposed merging / conveying apparatus, the merging / conveying path is opened by performing a backward movement operation of the conveying chain with protrusions of the stock conveying mechanism and the conveying chain of the tip locking conveying mechanism, and the clogging operation is performed. In this case, the transport chain with protrusions of the confluence transport device, the transport chain retreating operation, and the return movement operation after the work can be easily performed in a wide work space that is largely opened by raising the lifting device.

  Therefore, according to the first aspect of the present invention, cleaning and inspection and maintenance at the back of the pulling device can be performed more easily and easily.

According to a second invention, in the first invention,
In the other merging and conveying apparatus, the holding rail that faces the conveying chain with protrusions of the stock conveying mechanism and the guide rod that faces the conveying chain of the tip conveying mechanism can be moved forward to open the merging and conveying path. It is what is.

  According to the above configuration, by moving the holding rail and the guide rod forward, the merging / conveying path in the other merging / conveying device is opened, and the clogging work is performed. In this case, the forward movement operation of the holding rail and the guide rod and the return movement operation after the work can be easily performed in a wide work space that is largely opened by raising the apparatus.

  1 is an overall side view of the self-removable combine, FIG. 2 is a plan view of the front part of the body, and FIG. 3 is a side view of the front part of the body. The self-decomposing combine is configured such that a cutting unit 3 having a six-row cutting specification is connected to a front part of a traveling machine body 2 provided with a pair of left and right crawler traveling devices 1 so as to be movable up and down. The apparatus 5 and the grain collection tank 7 provided with the unloader 6 are mounted.

  The mowing unit 3 is provided with a mowing unit frame 10 in a forward-downward inclined posture, and the rear end base portion of the mowing unit frame 10 is laterally mounted on an upper portion of a support base 11 erected at the front end of the traveling machine body 2. The fulcrum P is connected and supported so as to be able to swing up and down, and is driven to swing up and down by the hydraulic cylinder 12. The mowing unit frame 10 includes six pulling devices 13 for raising the planted culm to a predetermined cutting posture, a clipper-type mowing device 14 for cutting the raised planting culm, and the mowing cereal lightly rearward. Auxiliary transport belt 15 for scraping, a rotary packer 16 for scraping and transporting the stock of the harvested cereals backward, and three sets of merging and transporting devices 17 for transporting and joining the harvested cereals to the intermediate part within the cutting width. , 18, 19 and a feeding and conveying device 20 that conveys the merged cereal to the starting end of the feed chain 6 provided on the lateral outer side of the threshing device 5.

  The merging and conveying device 17 on the left side of the machine body is composed of a stock transporting mechanism 17A that sandwiches and transports the stock side of the two left-handed harvested grain straws, and a tip transport mechanism 17B that latches and transports the head side of the grain straws, The merging / conveying device 18 in the center is composed of a stock transporting mechanism 18A and a tip transporting mechanism 18B for two middle strips, and the merging / conveying device 19 on the right side of the machine body is transporting a stock of two stocks on the right. It consists of a mechanism 19A and a tip transport mechanism 19B.

  As shown in FIG. 7, each stock transporting mechanism 17A, 18A, 19A is provided with a projecting transport chain 17c, 18c, 19c, and a holding rail 17d, 18d, 19d that is arranged so as to be elastically reversible. It consists of. As shown in FIG. 9, each tip transport mechanism 17B, 18B, 19B is provided with transport chains 17f, 18f, 19f having transport claws 17e, 18e, 19e that can be raised and lowered, and guides fixedly arranged along the claw movement trajectory. It consists of 17g, 18g, and 19g.

  A part of the six rotary packers 16 provided in front of the merging and conveying devices 17, 18, and 19 is driven to engage and drive the adjacent rotary packers 16. Six sets of auxiliary conveyance belts 15 are arranged concentrically with the rotary packer 16 and are driven to rotate integrally with the rotary packer 16.

  As shown in FIG. 2, the supply and transport device 20 includes a tip locking transport mechanism 21 formed by extending a right two-row tip transport mechanism 19 </ b> B to the front of the feed chain 6, and the merging transport devices 17, 18, and 19. It is comprised by the stock holding | grip holding | maintenance conveyance mechanism 22 extended rearward from the cereal basket confluence | merging location by the horizontal rotation type relay conveyance mechanism 23 arrange | positioned ahead of the feed chain 6. FIG. Then, the cereals in the standing posture merged by the merging / conveying devices 17, 18, and 19 are received by the starting end portion of the supply / conveying device 20, and fallen in a sideways posture while being conveyed rearward and upward while being held in stock and pinched. It is changed and delivered to the starting end of the feed chain 6.

  The stock holding and transporting mechanism 22 swings up and down around a front fulcrum (not shown) to change the transport terminal position, thereby changing the grain culm delivery position to the feed chain 6 in the cocoon length direction and the threshing device 6. A function for changing and adjusting the length of the cereal culm inserted into the so-called handle depth adjusting function is provided.

  The mowing unit frame 10 has a function as a cylindrical transmission case with a transmission shaft inserted therein, and a detailed description of the transmission structure is omitted, but the mowing unit frame 10 is transmitted to the fulcrum P for swaying the mowing unit. The engine power is transmitted to the front through the inside of the cutting unit frame 10, and the pulling device 13, the cutting device 14, the auxiliary conveying belt 15, the rotary packer 16, the merging conveying devices 17, 18, 19 and the supply conveying unit. The stock holding and conveying mechanism 22 of the apparatus 20 is driven. In addition, the tip locking conveyance mechanism 21 and the relay conveyance mechanism 23 of the supply conveyance device 20 are driven by the power branched at the fulcrum P.

  As shown in FIGS. 4 and 5, the pulling device 13 is configured by pivoting a plurality of pulling claws 32 on a pulling chain 31 wound around a pulling case 30 so as to be able to move up and down. The drive sprocket support shaft 34 provided at the upper portion thereof is interlocked and connected to the counter shaft 35 that is horizontally supported near the upper portion of the pulling device 13 group as follows.

  Pipe struts 37 are erected from near the left and right ends of a horizontally long drive case 36 that is arranged transversely and perpendicularly to the front end of the cutting part frame 10, and a cylindrical counter erected between the upper ends of the pipe struts 37. The counter shaft 35 is inserted into and supported by the case 38, and the power transmitted to the internal transmission shaft 27 of the drive case 36 by the internal transmission shaft 26 of the cutting part frame 10 is transmitted via the internal transmission shaft 28 of one column 37. Are transmitted to the counter shaft 35.

  A cylindrical pulling drive case 40 extends upward from the upper back portion of the pulling case 31, and the upper end portion of the pulling drive case 40 is externally connected to the counter case 38. The upper end portion of the pull-up drive shaft 41 inserted through the drive case 40 and the counter shaft 35 are interlocked and connected via bevel gears 42 and 43, and the lower end portion of the pull-up drive shaft 41 and the drive sprocket of the case 31 are raised. The support shaft 34 is interlocked and connected via bevel gears 44 and 45.

  In order to facilitate clogging removal work on the back of the pulling device 13 and the inspection and maintenance work of the conveying means, the pulling devices 13 at both ends of the six pulling devices 13 arranged in parallel are arranged. The four inner raising devices 13 except (L) and 13 (R) are configured to swing up and swing.

  That is, the pulling drive case 40 in the four inner pulling devices 13 is externally supported by the counter case 38 so as to be pivotable upward in the range of about 90 ° around the axis Q of the counter shaft 35. As shown in FIG. 6, the lower portion of the raising case 30 is detachably connected to the front portion of the weeding frame 48 extending forward from the drive case 36. A connecting bracket 48 a is erected on the weeding frame 48, and the connecting bracket 48 a and the connecting metal fitting 30 a provided on the lower back surface of the case 30 are attached and detached via an engagement lock mechanism 50 using the buckle 51. It is connected freely.

  Accordingly, by removing the weeding tool 49 inserted and connected to the front end of the weeding frame 48 and releasing the lock of the engagement lock mechanism 50, the pulling device 13 can be swung up and swung. The raised raising device 13 is held in a raised posture by the gas damper 52, and the cutting unit 3 whose front is largely opened by the raised swing of the raising device 13 can be easily inspected and maintained. .

  As shown in FIG. 7, the holding rail 19d of the stock transport mechanism 19A in the merging and transporting device 19 on the right side of the machine body and the sandwiching rail 18d of the stock transporting mechanism 18A in the merging and transporting device 18 on the center side are the second right side. Are attached to a support frame 61 equipped with the third auxiliary transport belt 15 and the rotary packer 16, and the support frame 61 is supported so that its position can be adjusted in the front-rear direction. In this case, the moving direction T of the support frame 61 disposed between the confluence conveyance path R on the right side of the machine body and the confluence conveyance path C on the center side is set to an intermediate direction with respect to the directions of both the confluence conveyance paths R and C. ing.

  As shown in FIG. 9, the guide rod 19g of the tip transport mechanism 19B in the merge transport device 19 on the right side of the machine body and the guide rod 18g of the tip transport mechanism 18B in the center merge transport device 18 can be repositioned back and forth. The support frame 61 is connected to a support arm 61a for supporting an auxiliary conveyance belt that extends forward from the support frame 61 in a cantilevered manner.

  Therefore, as shown in FIGS. 8 and 10, when the support frame 61 is moved forward, the holding rails 19d and 18d are moved away from the protruding transport chains 19c and 18c, and the guide rods 19g and 18g are moved to the transport chain 19f. , 18f, the merging conveyance paths R and C on the right side and the center side of the fuselage are opened, and a state where clogging can be easily removed is brought about.

  Whereas the support frame 65 supporting the merging / conveying device 18 on the center side is fixed in position, the merging / conveying device 17 on the left side of the machine body has a protruding transport chain 17c and a tip of the stock transport mechanism 17A. A transport frame 66 that winds and supports the transport chain 17f of the transport mechanism 17B is supported so as to be able to swing back and forth laterally about the drive shaft axis x.

  Therefore, as shown in FIGS. 8 and 10, the conveying frame 66 is moved back and forth laterally about the drive shaft axis x, thereby the protruding conveying chain 17c and conveying chain 17f are held between the holding rail 17d and the guide rod. By moving away from 17g, the merging and conveying path L on the left side of the machine body can be opened, and clogging can be easily removed here.

Combine side view Top view of the cutting part Side view of the mowing unit with the pulling device open Vertical side view of pulling device drive structure Rear view of pulling device Side view showing the lower desorption structure of the pulling device Plan view of merging transport device Plan view of the confluence transfer device moved for maintenance Top view of the tip transport mechanism that constitutes the confluence transport device Plan view of the tip transport mechanism moved for maintenance

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Mowing part 5 Threshing apparatus 13 Pulling-up apparatus 17 Joining conveyance apparatus 17A Stock transport mechanism 17B Ear tip transport mechanism 17c Conveyance chain with protrusion 17d Holding rail 17f Transport chain 17g Guide rod 18 Join transport device 18A Stock transport mechanism 18B Ear transport mechanism 18c Conveying chain with protrusions 18d Holding rail 18f Conveying chain 18g Guide rod 19 Combined conveying device 19A Stock transporting mechanism 19B Tip conveying mechanism 19c Conveying chain with protrusion 19d Holding rail 19f Conveying chain 19g Guide rod 20 Supply conveying device C Converging conveying path L Confluence transport path R Confluence transport path

Claims (2)

A plurality of raising devices are arranged in parallel at the front part of the cutting unit, and a plurality of confluence conveying devices equipped with a stock source conveying mechanism and a tip conveying mechanism are arranged in parallel on the left and right behind the raising device. In the combine that is configured to join and convey the harvested cereal to the middle position of the cutting width, and configured to convey the joined cereal to the threshing device by the supply and transport device,
Of the pulling device group, at least a predetermined pulling device on the central side of the cutting width is configured to swing up and swing, and the transfer chain with protrusions of the stock transport mechanism and the transport of the tip transport mechanism in some merging transport devices The combine is configured such that the merging conveyance path can be opened by reversing the chain with respect to the holding rail facing the conveyance chain with the protrusion and the guide rod facing the conveyance chain. .   In the other merging and conveying apparatus, the holding rail that faces the conveying chain with protrusions of the stock conveying mechanism and the guide rod that faces the conveying chain of the tip conveying mechanism can be moved forward to open the merging and conveying path. The combine according to claim 1.

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