JP2012039976A - Mounting structure of raising device in reaping and carrying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate attachment and detachment of a raising device.SOLUTION: An upper support part 4D in the front of a reaping and carrying apparatus includes a main driving axle 4x for outputting the driving force to the raising device, and an upper fitting part 8D of the raising device 8 includes a driving shaft 8x to which the driving force of the main driving axle 4x is input. The main driving axle 4x and the driving shaft 8x are put in the engagement state to enable mutual transmission with the upper fitting part 8D fitted to the upper support part 4D, and also put in the separating state to disable transmission with the upper fitting part 8D separated forward from the upper support part 4D to thereby form the transmission connecting configuration. A lower support configuration is such that in the raising device 8, an upper part thereof above a lower support part 4E can rock forward and backward on the lower support part 4E in the front of the reaping and carrying apparatus with the upper fitting part 8D detached from the upper support part 4D, by the forward rocking, the main driving axle 4x and the driving shaft 8x are separated from each other, and by the backward rocking, the upper fitting part 8D is located at a fitting position to the upper support part 4D.

Description

  The present invention relates to an attachment structure for a pulling device attached to a front portion of a harvesting and conveying device such as a combine.

In the combine, the raising device for raising the cereal to be planted in the field is provided in the front part of the cutting and conveying device. Such a pulling device needs to be assembled or removed at the time of maintenance or the like for removing clogging of the harvested cereal rice cake produced in the harvesting and conveying device. As means for facilitating the attachment and detachment of the pulling device, the rear (back) upper and lower portions of the pulling device are detachably attached to the upper support portion and the lower support portion of the front portion of the cutting and conveying device by means of fasteners such as bolts, respectively. A technique is known (see Patent Document 1). In this case, the transmission means to the pulling device is a spline fitting between the pulling device driving spline shaft protruding from the upper back of the pulling device and the spline hole provided in the upper support part of the front portion of the cutting and conveying device. Composed.
When attaching the pulling device to the cutting and conveying device, insert the spline shaft on the pulling device side into the spline hole of the upper support part at the front of the cutting and conveying device, and then the upper back of the pulling device and the upper part of the front of the cutting and conveying device While fastening a support part with a fastener, the back lower part of a grain raising case and the lower support part of a cutting and conveying apparatus front part are fastened with a fastener. Conversely, when removing the pulling device, loosen the fasteners that fasten the upper and lower parts of the back of the pulling device and the upper support and lower support of the front part of the cutting and conveying device, respectively, and the grain raising device and the cutting and conveying device After releasing the connection with the front portion, the pulling device is pulled forward, and the spline shaft of the pulling device is pulled out from the spline hole of the upper support portion in the front portion of the cutting and conveying device.

JP 2007-75031 A JP 2007-60951 A

However, the pulling device attachment / detachment structure in this preceding example requires that the spline shaft on the back of the pulling device be inserted into the spline hole in the front portion of the cutting and conveying device without any support during the mounting, and the work is easy. In the state that the back upper part and lower part of the pulling device are not fastened to the front part of the harvesting and transporting device with a fastener, the pulling device is supported only by spline fitting unless the grain pulling device is supported separately. Therefore, there is a problem that an excessive load may be applied to a transmission mechanism such as a spline shaft or a spline hole.
Therefore, the main problem of the present invention is to eliminate such problems.

The present invention that has solved the above problems is as follows.
That is, the invention described in claim 1 is an upper support portion (4D) and a lower support portion (removably attaching the upper portion and the lower portion of the pulling device (8) to the front portion of the harvesting and conveying device (4) for harvesting the culm. 4E)
An upper mounting portion (8D) and a lower mounting portion (8E) that are detachably attached to the upper support portion (4D) and the lower support portion (4E) are provided on the upper and lower portions of the pulling device (8), respectively.
A main driving part (4x) for outputting a driving force to the pulling device (8) is provided at or near the upper support part (4D), and a main driving part (4x) is provided at or near the upper mounting part (8D). The driven portion (8x) to which the driving force is input is provided, and the main driven portion (4x) and the driven portion (8x) are in a state where the upper mounting portion (8D) is attached to the upper support portion (4D). And a transmission connection configuration in which the upper mounting portion (8D) is in a separated state in which transmission is cut off in a state where the upper mounting portion (8D) is spaced forward from the upper support portion (4D).
The pulling device (8) is located above the lower support part (4E) with the lower support part (4E) as a support, with the upper mounting part (8D) removed from the upper support part (4D). The part can swing back and forth, and the main driving part (4x) and the driven part (8x) are in the separated state by the front swing, and the upper mounting part (8D) is supported by the upper support by the rear swing. It is the attachment structure of the raising apparatus in the cutting and conveying apparatus characterized by having a lower support structure positioned at an attachment position with respect to the portion (4D).

  According to a second aspect of the present invention, the lower support portion (4E) is formed as a lower support shaft (4E) extending in the left-right direction, and the lower mounting portion (8E) is grasped from above the lower support shaft (4E). A gripping portion (8E) that can be pivotably supported and can be extracted downward by separating the lower support shaft (4E), and an operation portion (8v) for operating the gripping portion (8E). , 8L), the pulling device mounting structure in the cutting and conveying device according to claim 1.

  The invention according to claim 3 is characterized in that the upper support portion (4D) and the lower support portion (4E) are connected by a connecting frame (40) extending in the longitudinal direction behind the pulling device (8). It is the attachment structure of the raising device in the cutting and conveying apparatus according to claim 1 or 2.

  Invention of Claim 4 is the tip side which guides the tip of the culm after the culm sensor (25) which detects the culm which passes the pulling route by the pulling device (8), and the pulling device (8) At least one of a guide (26), a stock source side guide (27) for guiding the stock source of cereals behind the pulling device (8), and an oiling tool for lubricating the pulling device (8) It is attached to a connection frame (40), It is the attachment structure of the raising apparatus in the cutting and conveying apparatus of Claim 3 characterized by the above-mentioned.

  According to a fifth aspect of the present invention, four or more pulling devices (8) are arranged at intervals in the left-right direction, and at least between the pulling device (8) at the left end and the pulling device (8) at the right end. 5. The pulling in the cutting and conveying device according to claim 1, wherein a part or all of the intermediate pulling device (8) positioned is the transmission connection configuration and the lower support configuration. It is the attachment structure of an apparatus.

  According to the first aspect of the present invention, when the pulling device (8) is attached, the pulling device (8) is supported in a state where the pulling device (8) is supported by the lower support portion (4E) at the front of the cutting and conveying device (4). Work to attach the lower mounting part (8E) to the lower support part (4E), swing the pulling device (8) backward, and bring the upper mounting part (8D) to the mounting position for the upper support part (4D) The pulling device (8) can be attached to the cutting and conveying device (4) side by an operation for bringing the main driving portion (4x) and the driven portion (8x) into an engaged state. When removing the pulling device (8), the pulling device (8) is supported by the lower support portion (4E) at the front of the cutting and conveying device (4), and the upper mounting portion (8D) of the pulling device (8) is used. ) Is removed from the upper support part (4D), the pulling device (8) is swung forward, and the upper mounting part (8D) is moved forward from the upper support part (4D) to move the main drive part (4x) and the driven part. The pulling device (8) is removed from the cutting and conveying device (4) side by the operation of separating (8x) and the operation of removing the lower mounting portion (8E) of the pulling device (8) from the lower support portion (4E). Can be removed. Therefore, the pulling device (8) can be easily attached and detached with the lower support portion (4E) at the front of the cutting and conveying device (4) as a support, and the harvested cereals are clogged in the cutting and conveying device (4). Even in this case, by removing the pulling device (8), the harvested cereal can be easily removed, and the efficiency of the harvesting work can be increased. Furthermore, there is no possibility that an excessive load is applied to the transmission mechanism during maintenance of the cutting and conveying apparatus (4), and the transmission mechanism can be prevented from being damaged.

  According to the invention described in claim 2, in addition to the effects of the invention described in claim 1, the mounting structure of the lower mounting portion (8E) and the lower support portion (4E) and the lower support portion (4E) are provided. The swing mechanism of the pulling device (8) as a support can be realized with a simple mechanism.

  According to the invention of claim 3, in addition to the effects of the invention of claim 1 or 2, the upper support part (4D) and the lower support part (4E) of the front part of the cutting and conveying device (4) are provided. By connecting with the connecting frame (40) extending in the longitudinal direction behind the pulling device (8), the pulling device (8) is firmly strengthened by the reinforcing action of the connecting frame (40) when the pulling device (8) is attached. In addition, the positions of the upper support portion (4D) and the lower support portion (4E) become difficult to shake during the attachment / detachment of the pulling device (8), and the attachment / detachment workability is improved. Moreover, since the connection frame (40) is located behind the pulling device (8), the connection frame (40) is less likely to interfere with the transfer of the cereal and the cereal transfer can be maintained smoothly.

  According to invention of Claim 4, in addition to having the effect of the invention of Claim 3, the grain sensor (25), the tip guide (26), the oiling tool, etc. are provided on the connecting frame (40). Thus, when removing the pulling device (8), it is not necessary to remove these instruments or their attached tubes and cables, so that the pulling device (8) can be attached and detached more easily.

  On the other hand, in the harvesting and conveying apparatus in which four or more pulling devices (8) are arranged in the left-right direction, a middle position located between them is higher than the pulling device (8) on the left end and the pulling device (8) on the right end. Grain clogging is likely to occur behind the pulling device (8). Further, the pulling device (8) at the left end and the pulling device (8) at the right end can be relatively easily put into the hand to perform maintenance, but the back of the intermediate pulling device (8) is such a thing. It is difficult to do. On the other hand, according to the invention described in claim 5, in addition to the effects of the invention described in any one of claims 1-4, at least the intermediate pulling device (8) is the above-mentioned book. Since the transmission connection structure and the lower support structure of the present invention are used, and the attachment and detachment from the cutting and conveying device (4) is facilitated, the maintenance work is easily performed on the part that is easily clogged and difficult to put in.

It is a side view of a combine. It is a front view of a combine. It is a rear view of a combine. It is a top view of a combine. It is a side view of the principal part of a cutting and conveying apparatus. It is a front view of the principal part of a cutting and conveying apparatus. It is a top view of the principal part of a cutting and conveying apparatus. It is a side view of a pulling apparatus. It is a rear view of the principal part of a pulling apparatus. It is a front view of the principal part of a cutting and conveying apparatus. It is a side view of the principal part of a cutting and conveying apparatus. It is a side view of the principal part near the pulling device. It is a longitudinal cross-sectional view which shows the attachment or detachment structure of a main drive shaft and a drive shaft. It is a side view of the principal part near the pulling device. It is a side view of the principal part of a cutting and conveying apparatus. It is a rear view of the principal part of a pulling apparatus.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
1 to 4 show a combine according to this embodiment, and FIGS. 5 to 16 show each part thereof. This combine is equipped with a threshing device 3 on either the left or right side of a traveling vehicle body 1 provided with a pair of left and right traveling crawlers 2, and the threshing machine 3 is cut into the threshing device 3 on the front side of the threshing device 3. The cutting and conveying device 4 to be transported is disposed, and a driving operation unit such as a driver's seat 5 and an operation box 6 is provided on the side of the cutting and conveying device 4, and threshing grains are temporarily placed behind the driving operation unit. Equipped with a Glen tank G for storage.

  The harvesting and conveying device 4 is composed of herb bodies 7, 7,. , 8..., A known clipper-type cutting blade device 9 that cuts near the root of the culm after raising, and harvests the culm, and induces the culm when it is raised to the cutting blade device 9 side, The upper and lower two-stage cereals that convey the rear cereals 10 to the threshing unit 3, and the stocker and the tip side of the cereals squeezed by the squeezing device 10. Conveying devices 12L, 12R, 13L, 13R, 14, 19 and the like are included.

  As shown in FIG. 5 to FIG. 7, the scraping device 10 of the present embodiment includes the scraping star wheel 11 provided immediately above the cutting blade device 9 and the rear side of the pulling device 8 on the front side. And an endless scooping belt 10b having a scooping lug 10r provided on the side. A pair of left and right take-up star wheels 11 and a take-in belt 10b are provided for each pulling path K, and the culm at the time of pull-up is guided to the side of the take-in star wheel 11 through the pair of take-up belts 10b. After that, it is sandwiched between the pair of stirrer star wheels 11 and scraped toward the rear cereal conveyors 12L, 12R, 13L, 13R, 14, and 19.

  The grain haul transport devices 12L, 12R, 13L, 13R, 14, and 19 in the present embodiment are configured from the tip side transport devices 13L, 13R, and 19 and the stock source side transport devices 12L, 12R, and 14 arranged in two upper and lower stages. Has been. Among these, the tip side conveying devices 13L, 13R, 19 are the tips of the cereals from the position immediately above the rear end portion of the right end scraping belt 10b to the supply unit of the threshing device 3 through the cereal merging portion J. Right ear tip transport device 13R that transports the side, left ear tip transport device 13L that transports the tip side of the cereal from the position immediately above the rear end portion of the leftmost scratching belt 10b to the upper portion of the cereal merging portion J, and the right tip It is comprised with the supply conveyance apparatus 19 which sends the tip side of a merging cereal to the supply part of the threshing apparatus 3 from the terminal part of the conveyance apparatus 13R. These transfer devices 13L, 13R, and 19 are connected to an endless chain that is wound around a drive sprocket and a driven wheel (not shown), a transfer lug attached to the endless chain at a predetermined interval, and along the transfer side of the chain. It is possible to employ a publicly known one that has a guide (not shown) provided and that pushes and conveys the culm positioned between the endless chain and the guide with a lug.

  Further, the stocker-side transport devices 12L, 12R, and 14 are connected to the rice straw merging portion J in the vicinity of the center of the width direction obliquely above the left rear from the position immediately above the right-hand stir-up star wheel 11. The right stock former transporting device 12R that holds the side and transports it, and the stock of the cereals from the position immediately above the left staring star wheel 11 toward the cereal merging portion J near the center in the width direction obliquely upward to the right rear Left stock transporter 12L that transports while holding the original side, and an adjustment transport device that transports while holding the stocker side of the combined cereal from the cereal merging unit J to the takeover part to the feed chain 3F of the threshing device 3 14. Each of these stock transporters 12L, 12R, 14 includes an endless transport chain that is wound around and driven by a drive sprocket (not shown) and a driven wheel, and a clamping cage (not shown) provided along the transport side of the transport chain. The well-known thing which pinches and conveys a grain basket between can be employ | adopted.

  The grains that have been scraped by the scraping device 10 and harvested by the harvesting and transporting device 4 are transported rearward by the grain straw transporting devices 12L, 12R, 13L, 13R, 14, and 19, and merged in the transporting process. After posture / position adjustment, the threshing device 3 is handed over to the feed chain 3F and threshed by the threshing device 3. The threshing apparatus 3 can adopt a known configuration.

  The cutting and conveying apparatus 4 will be described in more detail. The cutting and conveying device 4 is supported by a cutting and supporting frame 21 that pivots up and down with a cutting and supporting shaft 23 provided on a cutting and suspension base (not shown) at the front of the traveling vehicle body 1. It is designed to move up and down. The harvesting support frame 21 is a substantially T-shaped frame composed of a main frame 21M that projects obliquely downward from the harvesting support shaft 23 and a lower horizontal frame 21H that extends from the front end of the main frame 21M to the left and right sides. And upper and lower pulling support frames 21V and 21V extending from both ends of the lower horizontal frame 21H to the upper left and right sides of the pulling device 8, and the upper horizontal frame connecting the upper ends of the pulling support frames 21V and 21V. 21L and a pulling upper portion extending so as to hang from the upper horizontal frame 21L to the upper mounting portion of the pulling device 8 behind the pulling devices 8 at the left end and the right end and behind the pair of pulling devices 8 and 8 located in the middle. Mounting frame 21D, cutting blade support frame 21P provided on the front side of lower horizontal frame 21H, and cutting blade support frame 21P And a cause lower mounting frame 21U provided on the front side.

  The cutting blade device 9 is attached to the cutting blade support frame 21P, and the weed support rods 7s that support the weed bodies 7, 7,...

  The main frame 21M, the lower horizontal frame 21H, the left and right pulling support frame 21V, the upper horizontal frame 21L, and the pulling upper mounting frame 21D include a main transmission shaft 24M, a lower horizontal transmission shaft 24H, a pulling support transmission shaft 24V, The upper lateral power transmission shaft 24L and the pulling upper mounting power transmission shaft 24D are respectively provided, and the power input to the cutting support shaft 23 is transmitted through the transmission shafts 24M, 24H, 24V, 24L, and 24D that are interlocked by a gear (not shown). Via each of the pulling devices 8. Moreover, it transmits to the cutting blade apparatus 9 via the gear which is not shown in figure from the both ends of the lower horizontal transmission shaft 24H. Further, from the pulling support transmission shaft 24V on the left side, a left side component (left tip transfer unit 13L, left stock transfer unit 12L) and a left side component (left side) of the scraping device 10 via a gear (not shown). The right stock transporting device 12R and the adjustment transporting device 14 of the cutting and transporting device 4 are transmitted from the main transmission shaft 24M via a gear (not shown). In addition, it is transmitted to right side components (a pair of right side scraping belts 10b and a pair of right side scraping star wheels 11) of the scraping device 10. Further, the left extension portion of the cutting support shaft 23 is transmitted to the right tip transfer device 13R and the supply transfer device 19 of the cutting transfer device 4 through a gear (not shown).

  Since the pulling device 8 is a four-row cutting combine in the present embodiment, three sets of left and right pairs, which are raised and opposed to the lugs 8r, are arranged. As shown in detail in FIGS. 8 and 9, each pulling device 8 includes a pulling case 8B, a pulling cover 8A that is detachably supported on the front surface thereof, and an upper end portion and a lower end portion on the front surface of the pulling case 8B, respectively. The provided pulling drive sprocket 8s and the pulling driven wheel 8w, the tension adjusting sprocket 8t arranged side by side vertically on the pulling drive sprocket, and an endless pulling chain 8c wound around and driven. A pulling lug 8r attached to the pulling chain at a predetermined interval, and a tension spring 8n having one end connected to the upper end portion of the pulling case 8B and the other end connected to the support portion of the tension adjusting sprocket 8t. Have. The pulling lug 8r protrudes laterally on the pulling path K side from the pulling device 8 when the pulling lug 8r is lifted and moved obliquely upward rearward as the chain 8c is driven. These components of the pulling device 8 are supported by a pulling case 8B, and can be attached and detached in an assembled state when the pulling device 8 described later is attached and detached.

  As shown in FIG. 12, the pulling device 8 has an upper support portion 4 </ b> D provided at the front portion of the cutting and conveying device 4 at an upper mounting portion 8 </ b> D and a lower mounting portion 8 </ b> E provided at the upper and lower portions on the back surface thereof. And detachably attached to the lower support 4E.

  More specifically, as shown in FIGS. 8 and 13, a main driving shaft (main driving portion) 4x that outputs a driving force to the pulling device 8 to the lower end portion (upper support portion) 4D of the pulling upper mounting frame 21D. The main drive shaft 4x protrudes toward the pulling device 8 side, and the tip end thereof is a square shaft 4p. On the back surface of the pulling case 8B (upper mounting portion), the pulling drive sprocket 8s The drive shaft (driven portion) 8x is pivotally supported and is exposed to the pulling upper mounting frame 21D side. The angle at which the tip portion 4p of the main drive shaft 4x is fitted concentrically with the tip portion of the drive shaft 8x. A hole 8p is formed.

  Further, a lower support shaft (lower support portion) 4E extending in the left-right direction is provided on the upper portion of the pulling lower mounting frame 21U, and the lower support shaft 4E and the lower end portion 4D of the pulling upper mounting frame 21D are connected to the pulling device 8. They are connected by a connecting frame 40 extending in the longitudinal direction behind them. Further, in the illustrated embodiment, as the pulling and fixing means 30 for fixing the pulling device 8 in the mounted state, a lever member 31 swingably attached to the upper end portion of the connecting frame 40, and pivotally attached to the lever member 31. An annular member 32 and a hook-like member 33 fixed near the lower side of the drive shaft 8x on the back surface of the pulling case 8B are formed. The lever member 31 is swung toward the hook-like member 33 so that the annular member 32 is hook-like. By engaging the member 33 and then tilting the lever member 31 to the opposite side of the hook-like member 33, a hook-type fixing device (so-called patch lock) is employed that pulls and holds the annular member 32 by a toggle action.

  Although not shown in the drawing, the pulling fixing means 30 is a portion of the facing portion between the pulling device 8 and the front portion of the cutting and conveying device 4 (for example, the connecting frame 40, the pulling upper mounting frame 21D, the pulling lower mounting frame 21U, etc.). Either one is provided with a female screw hole, the other is provided with a bolt insertion hole, and a fixing structure for screwing a bolt with a knob into the female screw hole through this bolt insertion hole, or a pin insertion hole on both of the opposing parts Known fixing means such as a structure provided and fixed by a fixing pin such as a beta pin can be adopted.

  At the lower part of the back surface of the pull-up case 8B, a gripping part 8E that can grip the lower support shaft 4E from above and rotatably support it, and separate the lower support shaft 4E and pull it downward can be used as a lower mounting part. Is provided. In the illustrated example, the gripping portion 8E has a recessed portion 8u into which the lower support shaft 4E can be inserted from below, a fixing member 8f fixed to the back surface of the pulling case 8B, and a recessed portion of the fixing member 8f. And an opening / closing member 8m capable of opening and closing the entrance of the portion 8u. The opening / closing member 8m is attached so as to be rotatable about a rotation shaft 8q provided in the left-right direction provided on the upper side of the recessed portion 8u in the fixing member 8f, and as shown in FIGS. A portion on the rear side of 8q is connected to an operation lever 8v on the upper back of the pulling device 8 via a connecting wire 8L. The control lever 8v swings around a swing shaft 8i protruding from the back of the pulling case 8B. It is possible to move.

  When the operation lever 8v is swung, the opening / closing member 8m rotates between a position where the entrance of the recessed portion 8u in the fixing member 8f is closed and a position where the opening is opened. The lower support shaft 4E can be grabbed from above by the opening / closing member 8m and supported rotatably, and in the open state, the lower support shaft 4E can be taken in and out from below the entrance of the recessed portion 8u in the fixing member 8f. it can. In addition, the lower edge of the opening / closing member 8m that closes the entrance of the recessed portion 8u of the fixing member 8f is an inclined edge that is inclined rearward and downward to close the entrance of the recessed portion 8u of the fixing member 8f. When it is placed on the lower support shaft 4E in the state, the opening / closing member 8m is pushed in the opening direction by the inclined edge, and the lower support shaft 4E is moved into the recessed portion 8u of the fixing member 8f without operating the opening / closing member 8m. Can be pushed into.

  In the illustrated example, the gripping portion 8E is provided on the pulling device 8 side and the lower support shaft 4E is provided on the cutting support frame 21 side. Conversely, the lower support shaft 4E is provided on the pulling device 8 side and gripped. The part 8E can also be provided on the cutting support frame 21 side. In this case, the lower support shaft 4E serves as the lower mounting part of the pulling device 8, and the gripping part 8E serves as the lower support part.

  And by employ | adopting the above apparatus structures, the pulling apparatus 8 can be attached or detached as follows, for example. That is, when the pulling device 8 is attached, first, the operating lever 8v is raised to open the entrance of the recessed portion 8u of the fixing member 8f, and the lower support shaft 4E at the front of the cutting support frame 21 from below to the entrance. The pulling device 8 is lowered so that the gripping portion 8E is placed on the lower support shaft 4E. Further, when the lower edge of the opening / closing member 8m is an inclined edge as shown in the figure, the lower support shaft 4E can be pushed into the recessed portion 8u of the fixing member 8f without raising the operation lever 8v. good. 14 and 15, when the lower portion of the pulling device 8 is supported by the pulling lower mounting frame 21U, the operation lever 8v is then lowered to support the lower portion with the fixing member 8f and the opening / closing member 8m. By gripping the shaft 4E from above and rotatably supporting the shaft 4E, the work of attaching the pulling device 8 to the lower support shaft 4E by the gripping portion 8E is completed. Thereafter, the pulling device 8 is swung rearward about the lower support shaft 4E, and the upper mounting portion 8D of the pulling device 8 is brought to the mounting position with respect to the lower end portion 4D of the pulling upper mounting frame 21D, as shown in FIG. As shown, the angular shaft tip portion 4p of the main driving shaft 4x protruding from the lower end portion 4D of the pulling upper mounting frame 21D is fitted into the square hole 8p of the driving shaft 8x on the back surface of the pulling device 8 so as to be capable of transmission, When the pulling device 8 and the cutting support frame 21 are fixed by the pull fixing means 30, the state shown in FIG. 12 is obtained, and the upper mounting operation is completed.

  The removal of the pulling device 8 is an operation opposite to the attachment. That is, in the state where the lower portion of the pulling device 8 is supported by the pulling lower mounting frame 21U from the mounted state, the pulling device 8 and the cutting support frame 21 are fixed by the pulling fixing means 30, and the pulling device 8 is moved to the lower support shaft. 4E swings forward about the center, and the upper mounting portion 8D is spaced forward from the lower end portion 4D of the pulling upper mounting frame 21D, and the angle of the drive shaft 8x on the back surface of the pulling device 8 as shown in FIG. The shaft tip 4p of the main drive shaft 4x is removed from the hole 8p to separate the transmission, and as shown in FIGS. 14 and 15, the operation lever 8v is raised to open the entrance of the recessed portion 8u in the fixing member 8f. To do. Thereafter, the pulling device 8 is lifted so as to protrude the lower support shaft 4E downward from the entrance of the recessed portion 8u in the fixing member 8f, and the pulling device 8 is completely separated from the cutting support frame 21, thereby completing the removal operation. .

  By working in this way, it is possible to easily attach and detach the pulling device 8 with the lower support shaft 4E at the front of the cutting and conveying device 4 as a support, and there is also a possibility that an excessive load is applied to the transmission mechanism during the work. There is no. Moreover, such a mechanism is simply realized in the illustrated embodiment. Further, the lower end portion 4D of the pulling upper mounting frame 21D and the lower support shaft 4E are connected by a connecting frame 40 extending in the longitudinal direction behind the pulling device 8, so that the connecting frame 40 is reinforced when the pulling device 8 is mounted. The pulling device 8 is firmly supported by the action, and the position of the lower end portion 4D of the pulling upper mounting frame 21D and the lower support shaft 4E becomes difficult to be shaken while the pulling device 8 is being attached / detached. improves. Moreover, since the connection frame 40 is located behind the pulling device 8, it does not interfere with the transfer of the cereal.

  Furthermore, when such a connection frame 40 is provided, the cedar sensor 25 for detecting cereals passing through the pulling path K by the pulling device 8, specifically, the devices conventionally provided on the pulling device 8 side, Behind the pulling device 8, the tip side guide 26 that guides the head portion of the cereals protruding above the right tip transfer device 13R and the left tip transfer device 13L toward the cereal merging portion J behind the pulling device 8. Stock side that guides the stock side portion of the cereal pod located between the right tip transport device 13R and the left stock transport device 13L and the right stock transport device 12R and the left stock transport device 12L to the grain splice junction J When a guide 27, an oiling nozzle (not shown) such as an oiling hose or the like for lubricating the pulling chain 8c of the pulling device 8 and the like are attached to the connecting frame 40, when removing the pulling device, these instruments or their associated tubes And It may not remove the Buru, attachment and detachment of the inking unit is preferable because a more easily. In the illustrated example, the mounting base 25s of the grain sensor 25, the mounting base 26s of the tip side guide 26, the mounting base 27s of the stock source side guide 27, and the mounting base 28s of the lubrication nozzle that lubricates the pulling device 8 are provided in the connection frame 40, respectively. Provided. In such an attachment form, it is preferable to attach the harness and oiling hose of the grain culm sensor along the connecting frame 40. Further, in the illustrated example, the tip side guide 26 and the stock source side guide 27 are formed of a bar material, but may be formed of a plate material.

  On the other hand, the transmission connection structure and the lower support structure of the pulling device 8 as described above are preferable when applied to all the pulling devices 8 because the maintainability is improved. A conventional mounting structure can be applied to the device 8. In particular, in a combine in which four or more pulling devices 8 are spaced apart in the left-right direction, the cereal grains behind the pulling device 8 on the left side and the pulling device 8 on the right end rather than the pulling device 8 on the left end and the pulling device 8 on the right end. Grain clogging is likely to occur at the junction J. Further, the pulling device 8 at the left end and the pulling device 8 at the right end can be relatively easily handled from the side to perform maintenance, but it is difficult to do such a thing behind the intermediate pulling device 8. Therefore, at least the intermediate pulling device (the pulling device that covers the front of the grain merging portion J) 8 and 8 has the above-described transmission connection configuration and the lower support configuration, and is easily clogged by detachment from the cutting and conveying device 4. It is preferable to facilitate the maintenance work of the site where it is likely to occur and it is difficult to put a hand.

  In addition, when the plurality of pulling devices 8 are detachable, if the pulling devices 8 of each strip are individually detachable, there is an advantage that the weight load during work is reduced. It is also preferable that a plurality of or all the pulling devices 8 be detachable in a single operation. In particular, as shown in FIG. 16, it is a preferable mode that two adjacent pulling devices 8, 8 such as the middle in the left-right direction are connected by a connecting member 8 </ b> Y extending in the left-right direction, and are integrally attached and detached. .

  The present invention can be used for a combine or the like provided with the pulling device 8 at the front portion of the cutting and conveying device 4.

DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 3 Threshing apparatus 4 Harvesting conveyance apparatus 4D Upper support part 4E Lower support shaft (lower support part)
4p tip (square axis)
5 Driver's seat 6 Operation box 7s Weed support rod 8 Lifting device 8A Lifting cover 8B Lifting case 8c Lifting chain 8D Upper mounting portion 8E Gripping portion (lower mounting portion)
8f Fixing member 8i Oscillating shaft 8L Connecting wire 8m Opening and closing member 8n Tension spring 8p Square hole 8q Rotating shaft 8r Pulling lug 8s Pulling drive sprocket 8t Tension adjusting sprocket 8u Recessed portion 8v Operation lever 8w Pulling driven wheel 8x Drive shaft 8Y Connection Member 9 Cutting blade device 10 Scratching device 10b Scratching belt 10r Scratching lug 11 Scratching star wheel 12L Left stock transport device 12R Right stock transport device 13L Left stock transport device 13R Right stock transport device 14 Adjustment transport device 19 Supply Conveying device 21 Cutting support frame 21D Pulling upper mounting frame 21D Mounting frame 21H Lower horizontal frame 21L Upper horizontal frame 21M Main frame 21P Cutting blade support frame 21U Pulling lower mounting frame 21V Pulling support frame 23 Cutting support shaft 24D Pulling upper mounting transmission shaft 24H Lower lateral transmission shaft 24L Upper lateral transmission shaft 24M Main transmission shaft 24V Pull-up support transmission shaft 25 Wheat grain sensor 25s Wheat grain sensor mounting base 26 Ear tip side guide 26s Ear tip side guide mounting base 27 Stock side side guide mounting base 27s Stock side side guide mounting base 28s Lubricating nozzle mounting base 30 Pull-up fixing means 31 Lever member 32 Annular member 3F Feed chain 40 Connection frame G Glen tank J Grain ridge junction K Pull-up path

Claims (5)

An upper support part (4D) and a lower support part (4E) for removably attaching the upper part and the lower part of the pulling apparatus (8) are provided at the front part of the cutting and conveying apparatus (4) for harvesting cereals,
An upper mounting portion (8D) and a lower mounting portion (8E) that are detachably attached to the upper support portion (4D) and the lower support portion (4E) are provided on the upper and lower portions of the pulling device (8), respectively.
A main driving part (4x) for outputting a driving force to the pulling device (8) is provided at or near the upper support part (4D), and a main driving part (4x) is provided at or near the upper mounting part (8D). The driven portion (8x) to which the driving force is input is provided, and the main driven portion (4x) and the driven portion (8x) are in a state where the upper mounting portion (8D) is attached to the upper support portion (4D). And a transmission connection configuration in which the upper mounting portion (8D) is in a separated state in which transmission is cut off in a state where the upper mounting portion (8D) is spaced forward from the upper support portion (4D).
The pulling device (8) is located above the lower support part (4E) with the lower support part (4E) as a support, with the upper mounting part (8D) removed from the upper support part (4D). The part can swing back and forth, and the main driving part (4x) and the driven part (8x) are in the separated state by the front swing, and the upper mounting part (8D) is supported by the upper support by the rear swing. An attachment structure for a pulling device in a cutting and conveying apparatus, characterized in that the lower support structure is positioned at an attachment position with respect to the portion (4D).   The lower support portion (4E) is formed as a lower support shaft (4E) extending in the left-right direction, and the lower mounting portion (8E) is rotatably supported by grasping the lower support shaft (4E) from above. The lower support shaft (4E) is separated to be a gripping part (8E) that can be pulled out downward, and an operation part (8v, 8L) for operating the gripping part (8E) is provided. The attachment structure of the raising device in the cutting and conveying apparatus according to claim 1.   The upper support part (4D) and the lower support part (4E) are connected by a connecting frame (40) extending in the longitudinal direction behind the pulling device (8). Attachment structure of the pulling device in the cutting and conveying device.   A culm sensor (25) for detecting a culm that passes through a pulling path by the pulling device (8), a tip side guide (26) for guiding the tip of the culm behind the pulling device (8), the pulling device At least one of a stock source side guide (27) that guides the stock source of the grain straw behind (8) and an oiling tool that lubricates the pulling device (8) is attached to the connection frame (40). The attachment structure of the pulling device in the cutting and conveying device according to claim 3.   Four or more of the pulling devices (8) are arranged at an interval in the left-right direction, and at least an intermediate pulling device (8) positioned between the left pulling device (8) and the right pulling device (8). 5) part or all of the transmission connection structure and the lower support structure, the pulling device mounting structure in the cutting and conveying apparatus according to any one of claims 1 to 4.

Images