JP2009261301A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To hold the extent of bulging of a narrow guide at a prescribed value even when a reaping part is transversely moved to the right and the left, and to improve grass dividing performance. <P>SOLUTION: A combine harvester includes a reaping part (4) for reaping grain culms, raking in and transporting grain culms through a driving means (14) for reaping and transverse-moving so as to be movable in the right and the right transverse directions, and a narrow guide (16) capable of carrying out changeover to a posture for grass dividing actions bulging to the outer lateral side is disposed on a transverse side of a non-cut field of transverse-movable reaping part (4), and a housing posture for housing on the machine body side. The narrow guide (16) is linked through an extending and contracting link (17) capable of extending and contracting in the transverse width direction, and drivably connected and composed so as to be remotely controllable with an operation lever (18) installed near a driving operation part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention includes a lateral movement means for moving the cutting part in the horizontal direction and a herbicidal action posture in which the narrow guide provided on the uncut area side side part of the cutting part projects outward and is stored in the body side. The present invention relates to a combine equipped with a switching operation means that can be switched to a storage posture.

Conventionally, for example, in Patent Document 1, a narrow guide that can be switched between a weeding action posture that projects outward and a storage posture that is stored in the fuselage side is provided on the side portion of the uncut grass side of the cutting portion. There is disclosed a configuration in which a narrow guide can be switched and operated remotely between a weeding action posture and a storage posture by operation of an operation lever provided near the operation unit.
JP 2007-174955 A

In the case where measures are taken to move the mowing part to the left and right, if the protruding amount of the narrow guide changes with the lateral movement of the mowing part, there arises a problem that hinders the weeding action.
An object of the present invention is to keep the amount of projection of the narrow guide constant even when the cutting part moves sideways to the left and right, and to prevent the weeding performance from being lowered.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 is a method of cutting the cereal after the sieving body (8) for weeding the planted cereal and the raising device (9) for causing the cereal after the weeding. A mowing unit (4) comprising a mowing device (10) and an engraving and conveying device (11) that entrains and conveys the harvested cereal meal is provided so as to be movable in the left-right direction via the mowing lateral movement drive means (14). In addition, a narrow guide (16) that can be switched between a herbicidal action posture that projects to the left and right outer sides and a storage posture that is housed on the fuselage side is provided on the side portion of the uncut grass side of the cutting portion (4), The narrow guide (16) is connected to a bending and stretching link (17) that can be expanded and contracted in the left and right direction, and the bending and stretching link (17) is expanded and contracted by an operation of an operation lever (18) provided near the operation operation unit. ) Is switched between a weeding posture and a storage posture. The Inn.

  At the time of the middle split operation, the cutting operation is performed with the cutting unit positioned between the left and right crawlers so that the left and right traveling crawlers (2) and (2) do not step on the uncut chopsticks. In order to prevent the traveling crawler on the uncut area from stepping on the uncut shears and to prevent the waste straws and cutting straws from falling on the uncut shears, the mowing part is uncut as much as possible. Mowing work can be done efficiently by laterally moving to the ground side.

  The narrow guide 16 can be switched between a weeding posture projecting outward and a storage posture stored on the machine body by a switching operation of the operation lever 18, and can be remotely operated from the vicinity of the driving operation unit.

  Depending on the working conditions, even if the cutting part is moved laterally inward or outward, the narrow guide will move following this, there is no change in the narrow guide overhang position, and a constant overhang amount is maintained. Maintain the weed performance.

  According to a second aspect of the present invention, the horizontal frame (26) horizontally mounted on the rear portion of the harvesting device (10) is formed in a hollow pipe shape, and the bending / extending link (17) of the narrow guide (16) is expanded and contracted. The telescopic operation mechanism (20, 21) to be operated and the operation lever (18) are connected by the operation wires (22, 23), and the operation wires (22, 23) are inserted into the cutting horizontal frame (26). The combine according to claim 1.

  Since the operation wires 22 and 23 are inserted into the cutting horizontal frame 26, not only the operation wires 22 and 23 can be protected, but also the operation wires 22 and 23 can be smoothly guided, and a narrow guide is provided. Switching operation to 16 overhanging postures and storage postures can be easily performed.

  According to the first aspect of the present invention, even if the cutting part 4 is laterally moved in the left-right direction depending on the work situation, the narrow guide 16 also moves following this, so that the position of the extension of the narrow guide 16 relative to the cutting part 4 is There is no change, a constant amount of overhang can be maintained, and the cutting performance can be performed smoothly while maintaining the desired weeding performance.

  According to the second aspect of the present invention, the operation wires 22 and 23 are inserted into the trimming horizontal frame 26 while exhibiting the effects of the first aspect of the present invention, so that interference with the outside is not caused. Therefore, the operation wires 22 and 23 can be surely protected, the operability of the operation wire can be guided smoothly, and the switching operation of the narrow guide 16 can be easily performed.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a front view of a combine. This traveling vehicle body 1 is provided with a pair of left and right traveling crawlers 2 and 2, and a cutting part 4 is installed in the front part of a threshing device 3 mounted on the rear part. The side portion of the mowing unit 4 is provided with a driving operation unit including a driver's seat 5 and an operation box 6 and the like, and a Glen tank G for temporarily storing threshing grains is provided behind the driving operation unit. Yes.

  The reaping part 4 includes a herb body 8 that splits the raised cereals left and right, a cereal raising unit 9 that raises the cereals after weeding, and a reaping device 10 that harvests the cereals after raising. , A scraping and transporting device 11 for scrambling and transporting the cereal after cutting, and a lifting and transporting device 12 for lifting and transporting the cereal after scraping and transferring it to the feed chain 3a of the threshing device 3 It is configured to move up and down through a cutting vertical frame 13 that can move up and down with respect to the vehicle body.

  Further, the pre-cutting processing unit 4F including the weeding body 8, the pulling device 9, the cutting device 10, and the scraping and transporting device 11 is slidable in the horizontal direction with respect to the vertical cutting frame 13, and is moved laterally. It is set as the structure which moves horizontally by the expansion-contraction operation | movement of the slide cylinder 14 which is an example of the drive means for an object. As shown in FIG. 2, the pre-cutting processing unit 4F is configured to move laterally within the range of the slide amount L, and during the middle split operation, the pre-cutting processing unit is moved inward so as to be positioned within the travel width. The cutting operation is performed at the state position 3, and during the cutting operation, the pre-cutting processing unit is moved laterally outward from the uncut area side from FIG. 3 to perform the operation at the state position of FIG.

Each weed body 8 is attached to the tip of a weed support frame 15 projecting forward from the cutting device 10 side.
A narrow guide 16 that can be switched between a herbicidal action posture that projects outward and a storage posture that is stored on the machine body side is provided on the lateral side portion of the pre-cutting processing unit 4F that can move laterally. . The narrow guide 16 is pivotally supported by the front end portion of the weed support frame 15 at the back position of the weed body 8 on the uncut grass side (left side). It is supported so as to be slidable, and is extended and retractably linked via a bending / extending / contracting link 17 comprising a first link 17a and a second link 17b that can be expanded and contracted in the width direction. It may be interlocked so that it can be remotely operated by an operating lever 18 provided on the trunk cover. A bracket 19 is attached to the base end side of the weed support frame 15 on the left side (the uncut ground side), and a pivot shaft 20 erected in the vertical direction is pivotally supported on the bracket 19. The balance arm 21 and the first link 17a of the bending / extending link 17 are fixed to rotate integrally. One end side of two operation wires 22 and 23 is connected to both ends of the balance arm 21, and the other end side of the operation wires 22 and 23 is linked to the operation lever 18.

  A horizontal frame 26 that is horizontally mounted on the rear portion of the harvesting device 10 and that connects and holds the weed support frames 15, 15... From the lower side is formed of a hollow square pipe. The two operation wires 22 and 23 are inserted to guide the pulling operation of the wires to the operation lever side and the return operation to the counter operation lever side.

  When the operation lever 18 is turned in one direction, the wire 22 connected to one end of the balance arm 21 is pulled toward the operation lever 18 and at the same time, the wire connected to the other end of the balance arm 21 is pulled. 23 is pulled back to the counter-operating lever side. Accordingly, the balance arm 21 swings counterclockwise, and the first link 17a integrated with the rotation shaft 20 rotates outward from the state of FIG. By such rotation, the bending-extension link 17 in the refracted state extends linearly as shown in FIG. 6 and pushes the narrow guide 16 outward, and the narrow guide projects outward to switch to the weeding action posture. Further, when the operation lever 18 is rotated in the other direction, the wire 23 is pulled to the operation lever 18 side, and at the same time, the wire 22 is pulled back to the counter operation lever side, so that the balance arm 21 swings clockwise. The rotation shaft 20 rotates in the same direction, and the first link 17a integrated therewith rotates inward. As a result, the links 17a and 17b in the straight state are bent in the direction of contraction and the narrow guide 16 is retracted inward, and the narrow guide is retracted inward to be switched to the storage posture shown in FIG.

  It should be noted that when the narrow guide protrudes outward, the connecting portion by the connecting pin 24 between the first link 17a and the second link 17b is held in a bent state in which the connecting portion protrudes slightly rearward. By providing the stopper 25, even if the narrow guide receives a strong weeding force, the return to the storing direction can be reliably prevented.

  By arranging the balance arm 21 for connecting the operation wires 22 and 23 within the vertical width of the cutting horizontal frame 26, the operation wires 22 and 23 inserted into the frame 26 can be prevented from being excessively bent. The guiding action can be performed smoothly.

  Further, an L-shaped elbow guide fitting 27 that guides the bent portions of the wires 22 and 23 is provided between the balance arm 21 and the end of the cutting horizontal frame 26. The elbow guide fitting 27 is inserted into and fixed to the end of the square pipe of the frame 26 so that the bent portion of the wire is guided. Therefore, the wire can be moved smoothly, and the narrow guide is pushed out and pulled back. Can be easily performed.

  As shown in FIG. 9, an input transmission case 31 in which a cutting input shaft 30 input from an engine is mounted on an interior is laid on a suspension stand standing from the vehicle body side, and extends forward and downward from an intermediate portion of the input transmission case. The cutting transmission case 32 extending in the left-right lateral direction from the front end of the cutting vertical frame 13 is provided with the cutting device 10 of the cutting unit 4, the take-up conveying device 11 and the like so as to be able to transmit, and the entire cutting unit is connected with the cutting unit. The input shaft 30 is configured to move up and down with the rotation fulcrum. Further, from the cutting input shaft 30, a pulling transmission shaft 33 that interlocks with the drive sprocket 9a to project the right pulling device 9 to rotate is projected forward. The pulling transmission shaft 33 is configured to be able to swing left and right and up and down and extend back and forth through a spline shaft portion 34 that can expand and contract, and universal joints 35 and 35 that can be refracted in the left and right and up and down directions. The left pulling device 9 is driven from the middle of the pulling transmission shaft 33 through the right shaft through the transmission shaft 37 in the transmission pipe 36, the transmission shaft in the cutting transmission case 32 and the transmission shaft in the left pulling transmission case 38. It is configured to work as much as possible. The operation wires 22 and 23 in this example (FIG. 9) are inserted through the cutting frame 26 from the left end side and pulled out to the right end side. 33 is configured to communicate with the operation lever 18 through the top 33. Thereby, sagging and bending of the wire can be prevented and operability is improved.

  The embodiment shown in FIG. 10 and FIG. 11 is an operation lever of the narrow guide 16 on the upper part of the confluence conveying cover 40 provided at the back of the pulling devices 9C, 9C on the center side in the multi-row cutting (four-row cutting) combine. 18 shows a configuration in which 18 is arranged. The operation lever 18 in the illustrated example protrudes upward from a guide groove 41 provided in the left-right direction, and the operation arm side ends of the operation wires 22 and 23 connected to the operation lever fulcrum shaft 42, the operation arm 43, and the operation arm. The part is internally installed in the cover 40 and is protected from the outside. Further, the operation lever is operated in the horizontal direction, and the operation direction of the operation lever and the narrow guide can be switched so that the narrow guide 16 can be switched between a weeding action posture outward from the aircraft and a storage posture inside the aircraft. The operation directions are matched. That is, when the operation lever 18 is operated in the left direction, the narrow guide projects outwardly to the left, and when the operation lever is operated in the right direction, the narrow guide is stored in the right inward direction.

Combine front view Plan view showing the range of horizontal movement of the cutting part Top view of the main part of the combine Top view of the main part Plan view of the main part of the cutting part Top view of the main part Side view of the main part of the cutting part Front view of the main part Side view of the main part of the cutting part, Front view of another embodiment combine Top view of the main part

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 4 Mowing part 4F Pre-harvest processing part 8 Weeding body 9 Pulling device 10 Mowing device 11 Cutting conveying device 14 Mowing lateral movement drive means (slide cylinder)
16 Narrow guide 17 Bending / extending link 18 Operation lever 20 Telescopic operating mechanism (rotating shaft)
21 Telescopic operation mechanism (balance arm)
22 Operation wire 23 Operation wire 26 Cutting frame

Claims (2)

  A herbaceous body (8) for weeding the planted cereals to the left and right, a pulling device (9) for raising the cereals after weeding, a reaping device (10) for harvesting the cereals after the raising, and a harvested cereal A cutting part (4) comprising a scraping and transporting device (11) for carrying and transporting is equipped so as to be movable in the left-right direction via a cutting means for lateral movement drive means (14), and the cutting part (4) is not cut. A narrow guide (16) that can be switched between a weeding action posture that projects to the left and right outwards and a storage posture that is stored on the aircraft side is provided on the lateral side of the ground side, and the narrow guide (16) can be expanded and contracted in the left-right direction. A flexible bending link (17) is connected, and the bending link (17) is expanded and contracted by operation of an operation lever (18) provided near the driving operation section, so that the narrow guide (16) is moved to a weeding action position and a storage position. Combine that is characterized in that it is configured to switch to.   A telescopic operation mechanism (20, 21) is formed by forming a horizontal frame (26) cut horizontally on the rear portion of the mowing device (10) into a hollow pipe shape and extending and contracting the bending / extending link (17) of the narrow guide (16). 2) and an operation lever (18) are connected by an operation wire (22, 23), and the operation wire (22, 23) is inserted into the cutting horizontal frame (26). Combine.

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