JP2009232759A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester so designed that, in making a switching operation of a narrow guide between a working mode and a housing mode from the combine harvester's steering seat, the transmission of operating power by a relevant operating wire can be made accurate to improve the switching operability, and the operating wire's durability is improved through eliminating repeating the extension and slacking of the operating wire. <P>SOLUTION: The combine harvester has the following scheme: a reaping conveying apparatus (3) is set up in a transversely slidable way in the front of a traveling vehicle body (2) having a steering seat (1), and connected to the traveling vehicle body (2) side via a transmission unit (4) movable transversely following the transversely sliding motion. An operating wire (6) functioning to make a switching operation of a narrow guide (5) provided on the flank of the reaping conveying apparatus (3) between a working mode and a housing mode from the combine harvester's steering seat (1) is set up along the transmission unit (4). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a combine.

  2. Description of the Related Art Conventionally, a narrow guide provided in a combine harvesting and conveying apparatus is configured to be able to be switched from a driver seat on a traveling vehicle body to a working posture and a retracted posture. For example, Patent Document 1 discloses a configuration in which an operation lever and a narrow guide are operably connected to each other in the specification and the drawings by linkage means.

And the structure which slides to the left-right direction with respect to the traveling vehicle body of a combine is also technically completed, and the cutting conveyance apparatus is already well-known. For example, Patent Document 2 shows the configuration as well as the description in the drawings.
JP 2007-174955 A JP 2007-166978 A

  The harvesting / conveying device of the combine is configured such that the narrow guide provided on the outside thereof can be switched from the driver's seat to the working posture and the retracted posture. In this case, the operation lever of the driver's seat and the link of the narrow guide are usually connected via an operation wire so that the operation force from the driver's seat can be transmitted by the wire. There is a big problem with a combine that slides left and right.

  That is, as described above, in the case of a combine that slides the cutting and conveying apparatus to the left and right, the operation wire that connects the operation lever and the narrow guide link takes into account the sliding distance to the left and right, and has a margin corresponding to the moving distance. As a result, the tension and relaxation of the wire is repeated depending on the slide part, and the accurate transmission of the operating force becomes poor, and the extension and contraction with the slide are repeated at an early stage. There was also a problem in durability due to fatigue.

In order to solve the above problems, the present invention takes the following technical means.
That is, in the invention described in claim 1, the cutting and conveying device (3) is slidably provided in the front portion of the traveling vehicle body (2) having the driver's seat (1), and the cutting and conveying device (3) is provided. A narrow guide (5) provided on the side of the cutting and conveying device (3) is connected to the traveling vehicle body (2) side through a transmission device (4) that can move to the left and right following the left and right slide. The operation wire (6) for switching the operation posture from the driver seat (1) to the working posture and the retracted posture is provided along the transmission device (4).

  Since the operation wire 6 is disposed along the transmission device 4 that follows the left and right slide of the cutting and conveying device 3, the tension and relaxation action does not work when sliding, and the same tensioned state can be maintained at all times. The operation force can be accurately transmitted and the structure has excellent durability.

  Next, in the invention described in claim 2, the operation wire (6) is arranged along a universal joint type transmission device (4 a) that is a transmission device (4) that can follow the left-right slide of the cutting and conveying device (3). Extending in the vicinity of the grain raising device (8) and extending downward along the longitudinal axis (9) which is the transmission shaft of the grain raising device (8), The combine according to claim 1, characterized in that it extends along the case (10) and the slide cylinder (11) and is connected to the narrow guide (5).

  In arranging the operation wire 6 along the universal joint type transmission device 4a, the longitudinal axis 9, the lower transmission case 10 and the slide cylinder 11, it is possible to provide the operation wire 6 while avoiding the side through which the conveying cereal passes. In addition, there is almost no entanglement of cereal grains and sawdust, and it is always possible to accurately transmit the operating force.

  According to the first aspect of the present invention, since the operation wire 6 is disposed along the transmission device 4 that follows the left and right slide of the cutting and conveying device 3, the operation wire 6 is tensioned or relaxed during the slide. Since the same tensioned state can always be maintained without working, the operating force for switching between the working posture and the retracted posture can be accurately transmitted from the driver's seat 1 to the narrow guide 5 and the operability can be improved. . And, since the action of tension or relaxation does not act on the operation wire 6 when the cutting and conveying apparatus 3 slides to the left or right, the wire 6 hardly repeats stretching or loosening, fatigue does not occur, and durability is improved. Can be improved.

  According to the invention described in claim 2, while having the same effect as that of the invention described in claim 1, the operation wire 6 is connected to the universal joint transmission device 4a, the longitudinal axis 9, and the lower transmission case 10. And along the slide cylinder 11, it can be placed on the back side, avoiding the side through which the transported cereals pass, so there is almost no entanglement of cereals and swarf, and the operating force is always accurate. The durability can be improved.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the combine 15 is a combine that mainly harvests rice, wheat and the like as shown in FIGS. The driver's seat 1 is arranged on the right side, and the cutting and conveying device 3 is arranged on the left side. The combine 15 is configured such that a threshing device 17 is mounted on the rear side of the cutting and conveying device 3 and a grain tank 18 is mounted on the right side of the threshing device 17 (the rear side of the driver's seat 1). Reference numeral 19 denotes a grain discharge auger.

  Then, as shown in the drawing, the cutting and conveying device 3 is provided with three weed cocoons 20 at the front low position, and is provided with a pair of left and right grain raising devices 8 and 8 inclined obliquely rearward behind them. In addition, a reaping device 21 having a cutting width of two cereals is arranged at a lower position on the lower side, and the cereal carrying device 22 on the stock side and the tip side toward the threshing device 17 from the upper side to the rear side, 23 is provided, and these devices are integrated into a framework.

  Then, the cutting and conveying device 3 is provided with a horizontal slide cylinder 11 provided in a horizontal direction on a distal end portion of a cutting support frame 24 that extends obliquely forward and downward from a cutting suspension base at a front portion of the traveling vehicle body 2. It is configured to support the slide freely. In this case, as shown in FIG. 1A (center position), (B) “position slid to the left”, and (C) “position slid to the right”, the cutting and conveying device 3 moves to the slide cylinder 11. Left and right weed support rods 25 and 25 are provided at both ends of the transmission case 10 which is slidably inserted and supported, and this is provided with the weed rod 20 and the grain raising devices 8 and 8 and the reaping device described above. 21. It is configured so that the grain feeders 22 and 23 on the stock source side and the tip side can be slidably adjusted to the left and right by integrally forming a framework.

  As shown in the drawing, the narrow guide 5 has a front end portion pivotally attached to a front portion of the weed support rod 25 on the left side of the cutting and conveying device 3, and a narrow guide link 26 is provided at an intermediate portion. It supports to the outside of a cutting and conveying apparatus via, and is extended and constituted to back.

  Next, an operation mechanism for switching the narrow guide 5 between the working posture and the retracted posture together with the transmission mechanism to the cutting and conveying device 3 will be mainly described with reference to FIGS. ) (C) will be described.

  First, the engine 28 is mounted in an engine room (see FIG. 4) formed on the lower side of the driver's seat 1 and is distributed and transmitted to each rotating part. The cutting input pulley 29 is provided outside the cutting transmission shaft 30 as shown by the dotted line positions in FIG. 1 (A) and FIG. 4, and the transmission path is omitted, but the vehicle travels through the traveling mission device. The rotational power synchronized with the speed is input.

  And the transmission device 4 comprised from the universal joint type transmission device 4a provided with the universal joint has the base portion as the cutting transmission shaft 30 (the specific configuration is omitted, but the power is moved forward in a right angle direction by a pair of bevel gears. As a structure that is distributed to the right grain culling pulling device 8 and the vertical shaft 32 that is transmitted to the transmission shaft 31 in the lower transmission case 10. Yes.

  The transmission case 10 distributes the rotational power transmitted to the transmission shaft 31 to the reaping device 21, the left cereal raising device 8, the stock source cereal conveying device 22, and the eared cereal conveying device 23. It is configured to transmit. And the said transmission apparatus 4 follows the slide adjustment to the left-right direction of the already demonstrated cutting conveyance apparatus 3, and the structure which can be transmitted correspondingly even if the transmission apparatus 4a provided with the universal joint act | operates and moves to the left and right, It has become.

  In the operation mechanism for switching the narrow guide 5 between the working posture and the retracted posture, the operation wire 6 is disposed between the operation lever 7 provided on the operation panel of the driver's seat 1 and the narrow guide link 26. And can be operated.

  Specifically, the operation wire 6 has a transmission case 10 in which a transmission shaft 31 is installed from the transmission device 4 via a vertical axis 32 as shown in the diagrams of FIGS. The cable is arranged along the outside of the control lever 7 and arranged from the operation lever 7 to the narrow guide link 26 and connected.

  In this way, the operation wire 6 follows the series of transmission paths 9 from the transmission device 4 that can move left and right following the cutting and conveying device 3 that slides to the left and right, through the vertical axis 32, and further to the transmission case 10. It is the composition arranged.

  As described above, the embodiment is arranged along the transmission device 4 that follows the left and right slide of the cutting and conveying device 3, so that the operation wire 6 does not have a tension or relaxation action at the time of sliding, Since there is no change in the tensioned state and there is no loosening or stretching, the operating force for switching between the working posture and the retracted posture can be accurately transmitted from the operating lever 7 of the driver's seat 1 to the narrow guide 5 via the narrow guide link 26. It was possible to do.

  In the embodiment, as already described, since the action of tension and relaxation does not act on the operation wire 6 when the cutting and conveying device 3 slides to the left and right, the wire 6 is repeatedly stretched or contracted in most cases. No fatigue occurs and the durability is excellent.

  In the embodiment, in arranging along the universal joint type transmission device 4a, the vertical axis 32, the transmission case 10, the slide cylinder 11 and the like, it is arranged on the back side while avoiding the side through which the conveying cereal passes. Therefore, there is no obstacle such as contact with the transported cereal, and there is almost no entanglement of the cereal and swarf, and the operation force can always be transmitted accurately and has a high durability.

Other embodiments will be described below.
Conventionally, a narrow guide is supported by a narrow guide link that is bent with a vertical pivot shaft as a fulcrum, as shown in, for example, Japanese Patent Application Laid-Open No. 2006-42650. In general, it is necessary to widen the operating range of the link forward and backward.

  On the other hand, the narrow guide 5 of the embodiment, as will be described later, is configured to be operated by opening and closing up and down with a link configured with a pivot shaft provided in the front-rear direction as a fulcrum. In addition to being compact, it can function satisfactorily in a limited space.

  First, as shown in FIGS. 5 to 8, the narrow guide 5 is configured to be foldably supported on the traveling vehicle body 2 side by a narrow guide link 35 constituted by a first link 35 a and a second link 35 b. Yes. In the case of the embodiment, the narrow guide 5 includes the first link 35a and the second link 35b on the side of the traveling vehicle body 2 by the three connecting shafts 36, 37, 38 that are directed in the front-rear direction along the traveling direction. The transmission case (gear case) 40 is foldably supported on the outer surface of the transmission case (gear case) 40. The narrow guide link 35 is connected to the first link 35a on the traveling vehicle body 2 side with the other end of the operation wire 6 extended by connecting one end to the operation lever 7 of the driver's seat 1. The guide 5 is configured to be foldable into a working posture in which the guide 5 is expanded laterally and a retracted posture stored on the traveling vehicle body 2 side.

  Further, as shown in FIGS. 6 and 8A and 8B, the first link 35a and the second link 35b are locked to the outside of the bent portion at the pivotal connection portion between both the links 35a and 35b. The plate 41 is disposed and provided on the second link 35b. Then, the lock plate 41 extends the narrow guide link 35 to move the narrow guide 5 into the working position as shown in FIG. 8 (A) “Storing position of the narrow guide 5” to (B) “Working position of the narrow guide 5”. When it is expanded, the bent portion is received from the outside and locked so as not to bend any further.

  As described above, the narrow guide link 35 of the embodiment is folded into the narrow operating range by folding the first link 35a and the second link 35b in the storage position of the narrow guide 5, and can be stored in a narrow storage place. There are features.

  Since the narrow guide link 35 is attached to and supported by the transmission case 40, it is not necessary to provide a dedicated device for support, the configuration can be simplified, and the vehicle body frame and crawler can be provided at close positions. Thus, there is an advantage that the size of the combine can be reduced.

  Then, when the narrow guide 5 is extended to the working posture, the lock plate 41 extends with the first link 35a and the second link 35b rotating with the connecting shaft 37 as a fulcrum, and over the fulcrum on the opposite side. There is a feature that the lock plate 41 can reliably receive and hold the posture at the position.

Next, another embodiment of the narrow guide 5 will be described in detail with reference to FIGS.
First, the reaping transmission case 45 is framed as a main part in the machine frame of the reaping and conveying apparatus 3 as shown in the drawings, and each of the devices (FIG. 2 and FIG. 3) such as the grain raising device 8 and the reaping device 21. It is configured in the shape of a horizontally long box that distributes the rotational power and transmits it. The support device 46 of the narrow guide link 26 is supported via an attachment 47 connected to the left end of the cutting transmission case 45 and is arranged on the left outer side of the cutting conveyance device 3. As shown in the drawing, the narrow guide link 26 pivotally connects the first link 26 a on the base side and the second link 26 b on the distal end side, and supports the first link 26 a to the support device 46. The second link 26 b is connected to the narrow guide 5. The narrow guide link 26 is rotatably mounted on a support shaft 48 in which the first link 26a is pivotally mounted in the center of the support device 46 in the vertical direction and freely slidably up and down. The two links 26b are pivotally attached to an intermediate portion of the narrow guide 5 so as to be rotatable about the vertical axis.

  Then, as shown in the drawing, the support device 46 is formed by arranging an upwardly facing chrysanthemum 50 along an arc-shaped outer peripheral edge on the outer side of the operation plate 49 provided to be freely rotatable about the support shaft 48. is doing. The operation plate 49 connects the two operation wires 6 and 6 connected to the operation lever 7 of the driver's seat 1 to the two connecting portions 51 and 51 at the front and rear, and is mounted on the support shaft 48. The first link 26 a is engaged with the first link 26 a placed on the chrysanthemum seat 50.

  As shown in FIG. 10, the presser spring 52 is provided by being wound around the support shaft 48 from above, and the first link 26a is tensioned from the upper side toward the operation plate 51 so that the presser spring 52 is engaged and held on the seat 50. It is configured as possible.

  The narrow guide 5 of the embodiment configured as described above is transmitted from the connecting portions 51 and 51 to the operation plate 49 via the operation wires 6 and 6 when the operator operates the operation lever 7 of the driver's seat 1 to the working posture position. Then, the operation plate 49 rotates in the direction of the arrow (see FIG. 9). As a result, the narrow guide link 26 rotates integrally with the first link 26a while the upward link 50 is engaged with the outer peripheral edge of the arc shape on the outer side of the operation plate 49, and the outer second link 26b. Opens and operates the narrow guide 5 to the working posture position. At this time, the first link 26a is pushed downward by the tension pressure of the upper presser spring 52 at the base, and is pressed against and engaged with the chrysanthemum seat 50 of the operation plate 46. As described above, the narrow guide 5 is extended to the working posture while being engaged with the gear 50.

  In the case of the embodiment, the narrow guide 5 can be switched from the driver's seat 1 to the working posture and the retracted posture by remote operation from the driver's seat 1 as described above. The configuration is such that an opening / closing operation (see FIG. 11) between the working posture and the retracted posture can be performed.

In other words, the narrow guide 5 can lift and move the first link 26a upward while resisting the presser spring 52 to disengage it from the chrysanthemum 50, and freely move it on the upper side.
As described above, the narrow guide 5 according to the embodiment can be switched from the combine harvester 3 on the left side of the cutting and conveying device 3 and manually adjusted. Since the support device 46 is configured up and down, there is also an advantage that catching of grain waste etc. is reduced.

Next, an embodiment will be described with reference to FIGS. 12 to 14 for the grain raising apparatus 56 that can be raised and lowered corresponding to the long and short bowls and switch the adjustment position of the lug 55 up and down.
This type of grain raising apparatus is disclosed in, for example, Japanese Patent Application Laid-Open No. 10-14361, Japanese Patent Application Laid-Open No. 2001-269044, etc., and there are many known examples. The problem of these known techniques is solved.

  First, as shown in the drawing, the grain raising device 56 according to the embodiment moves a guide rail 59 that guides the sliding portion 58 formed in the base of the lug 55 inside the raising case 57. It is arranged along the line. As shown in the drawing, the guide rail 59 includes a standard guide rail 59a on the lower side and a guide rail 59b for long guides connected to the upper side of the guide rail 59 so as to be detachable. And, as shown in the drawing, the long rail guide rail 59b is arranged so as to be vertically arranged on the upper and lower sides of the case 57 to form left and right elongated holes 60, 60, which can be moved in the left and right direction and fixed with screws. . Then, the long guide rail 59b is fixed along a movement path that can be raised and guide the sliding portion 58 of the lug 55 as shown in FIG. In the cutting operation of the standard (short cocoon) length culm, as shown in FIG. 14, the work is performed by changing to the retracted position.

The embodiment is characterized in that the replacement operation of the long guide rail 59b can be easily performed by operating the screw 61 on the back side of the case 57.
Next, an embodiment of the oiling nozzle will be described.

  As shown in FIGS. 15 and 16, the oiling nozzle 65 according to the embodiment is manufactured by separately manufacturing a front portion 65 a having a nozzle hole 66 and a rear portion 65 b having a hose connection portion 67. , It is configured to be integrated by screw fitting. Further, as shown in the drawing, the front portion 65a is provided with a cleaning hole 68 on the back side of the nozzle hole 66 so that the screw lid 69 can be attached and detached. Reference numeral 70 denotes an oil passage.

  The lubrication nozzle 65 configured in this way is formed by integrating the front portion 65a having the nozzle hole 66 and the rear portion 65b having the hose connection portion 67 by screw fitting, so it is easily divided into two. can do. Therefore, the oiling nozzle 65 of the embodiment has a feature that mud and dust can be removed relatively easily. Further, the front portion 65a provided with the nozzle hole 66 has a cleaning hole 68 immediately behind the nozzle hole 66, and if the screw cover 69 is removed, the cleaning hole 68 is opened, so that cleaning is easy.

  The oiling nozzle 65 configured in this way is used when lubricating oil is applied to an operating part such as a combine (for example, a sliding portion of a cutting device).

(A) (B) (C) Diagram for explaining the arrangement relationship between the transmission and the operation wire Combine front view Side view of part of the combine Combine side view Front view of a combine equipped with a narrow guide according to another embodiment A plan view of a part of a combine equipped with a narrow guide according to another embodiment Side view of a cutting and conveying apparatus equipped with a narrow guide according to another embodiment (A) (B) Action diagram of narrow guide link The top view of the cutting and conveying apparatus which has the narrow guide of another Example. Side view of the main part of the embodiment of FIG. Side view of the main part Internal front view of the grain raising apparatus of another embodiment Internal side view of the grain raising apparatus shown in FIG. Operational front view of the grain raising apparatus of another embodiment Rear view of lubrication nozzle Cutting plan view of lubrication nozzle

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Driver's seat 2 Traveling vehicle body 3 Cutting and conveying device 4 Transmission device 4a Universal joint type transmission device 5 Narrow guide 6 Operation wire 7 Operation lever 8 Grain raising device 9 Vertical axis 10 Transmission case 11 Slide cylinder

Claims (2)

  A cutting and conveying device (3) is provided at the front portion of the traveling vehicle body (2) having the driver's seat (1) so as to be slidable to the left and right. A narrow guide (5) connected to the traveling vehicle body (2) side via a transmission device (4) and provided on the side of the cutting and conveying device (3) is moved from the driver seat (1) to a working posture and a retracted posture. A combine characterized in that an operation wire (6) for switching operation is provided along the transmission (4).   The operation wire (6) is placed in the vicinity of the grain raising device (8) along a universal joint transmission device (4a) which is a transmission device (4) capable of following the left and right slide of the cutting and conveying device (3). It extends and is arranged to extend downward along the longitudinal axis (9), which is the transmission shaft of the grain raising device (8), along the lower transmission case (10) and the slide cylinder (11). The combine according to claim 1, wherein the combine is extended and connected to the narrow guide (5).

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