JP4732928B2 - Combine - Google Patents

Description

  The present invention relates to a combine that conveys the stock base side of a stem that has been cut by the pretreatment unit to the threshing feed chain of the threshing unit via the handling depth adjustment conveying device, the first auxiliary conveying device, and the second auxiliary conveying device. In particular, the present invention relates to a combine provided with a takeover guide that guides the stalk base to the second auxiliary transport device.

A handling depth adjusting and conveying device that swings up and down with the stock start side of the stems cut by the preprocessing unit as a fulcrum, and a first auxiliary conveying device disposed above the handling depth adjusting and conveying device And a combine that is transported to the threshing feed chain of the threshing portion via the second auxiliary transporting device disposed outside the first auxiliary transporting device is known (see, for example, Patent Document 1). ). In this type of combine, there is a gap between the first auxiliary transport device and the second auxiliary transport device, and the stockholder enters the gap and cannot take over the stock in the threshing feed chain. Therefore, the takeover guide is extended from the first auxiliary transfer device side to the starting end side of the second auxiliary transfer device, and the takeover guide moves the stem stock side to the second side. It is preferable to guide on the auxiliary conveying device.
Japanese Patent No. 3712480

  By the way, the takeover guide described in Patent Document 1 is supported so as to be swingable up and down, and is configured to retreat and swing upward in response to contact with the handling depth adjusting and conveying device. This makes it possible to widen the vertical swing range of the handling depth adjusting and conveying device as much as possible, and to cope with short ridges. However, the takeover guide of Patent Document 1 has a support shaft that faces in the left-right direction. Since it only swings up and down as a fulcrum, if it is swung to the vicinity of the upper limit position, it may protrude into the pedicle conveyance area and possibly inhibit the conveyance of the pedicle.

  Moreover, since the takeover guide described in Patent Document 1 is supported by the lower part of the case of the first auxiliary transport device, when applied to a combine that can adjust the left and right positions of the first auxiliary transport device, the first auxiliary transport As the left and right position of the apparatus is adjusted, the takeover guide position changes, which may hinder the takeover to the second auxiliary transport apparatus.

The present invention was created for the purpose of solving these problems in view of the above-mentioned circumstances, and the invention of claim 1 conveys the stock side of the stems cut by the pretreatment unit. A handling depth adjusting and conveying apparatus that swings up and down with the start end as a fulcrum, a first auxiliary conveying apparatus disposed above the handling depth adjusting and conveying apparatus, and a second disposed outside the auxiliary conveying apparatus The auxiliaries are conveyed to the threshing feed chain of the threshing section via the auxiliary conveying device, and the takeover guide is extended from the first auxiliary conveying device toward the starting end side of the second auxiliary conveying device. In the combine that guides the culm stock side onto the second auxiliary transport device, the takeover guide is supported so as to be swingable up and down, and retreats and swings upward according to contact with the handling depth adjustment transport device. together causing the takeover guide tips In constituting to move inwardly as to swing upward, the takeover guide when retracted swings up to the upper limit position, the pawl tip trace of the transport chain which tip is provided on the first auxiliary conveying device It is a combine characterized by entering inside . In this way, when the takeover guide swings to the vicinity of the upper limit position, can be avoided that the tip projects into the stem稈搬feed region, with no disadvantage that the transport of Kuki稈is inhibited by taking over the guide When the retracted swinging to the upper limit position, the tip end portion of the takeover guide can be reliably retracted from within the conveyance area of the pedicles.
The invention of claim 2, wherein the first auxiliary transport apparatus is freely horizontally positioning a combine of claim 1 Symbol mounting, characterized in that the takeover guide is supported by a fixed frame of the pre-processing unit. In this way, even if the left / right position of the first auxiliary transport device is adjusted, there is no change in the positional relationship between the second auxiliary transport device and the takeover guide. The takeover to the auxiliary conveying device can be performed satisfactorily.

  Next, embodiments of the present invention will be described with reference to the drawings. 1 and 2, reference numeral 1 denotes a combine. The combine 1 includes a pre-processing unit 2 that cuts off the stems, a threshing unit 3 that threshs the grains from the cut stems and selects them, and a selection. A grain tank 4 for storing the finished grain, a post-processing unit 5 for post-processing the threshed waste, an operation unit 6 on which the operator gets on, and a crawler type traveling unit 7 are configured. .

  The pre-processing unit 2 of the present embodiment has a six-row cutting specification, a divider 8 that divides the stalk into the number of cutting stubs, a pulling device 9 that causes the stalk, and a stalk planter is cut. Cutting blade 10, star wheel 11 for scrambling and transporting the stem side of the stalk, scraping transport belt 12 for scrambling and transporting the tip side of the stalk, and stalks for the left two strips Left side transport unit (not shown) that transports the stalk toward the confluence, and a central transport unit (not shown) that transports the stalks of the two streaks in the middle toward the confluence. After conveying the right side two stalks toward the confluence, the right side conveyance unit (not shown), and conveying the merged stalks toward the start end of the threshing feed chain 13 provided in the threshing unit 3 The side conveyance unit 14 is provided.

As shown in FIGS. 3 to 7, the rear transfer unit 14 includes a tip transfer device 15, a handling depth adjustment transfer device 16, a first auxiliary transfer device 17, and a second auxiliary transfer device 18. It is configured.
The tip transport device 15 is arranged in a front-rear and rear-high shape from the joining position toward the threshing unit 3, while sandwiching the joined stem tip side between the clawed chain 15 a and the guide rail 15 b, It is transported toward the rear upper side.

  The handling depth adjusting and conveying device 16 conveys the stock base side of the joined stems between the conveying chain 16a and the holding rail 16b while moving upward in the rear direction. The handling depth of the stalks is adjusted in the threshing section 3 by swinging up and down about the fulcrum. In other words, by detecting the tip position of the stem and controlling the vertical swing position of the handling depth adjusting and conveying device 16 so that the tip position is constant, the handling depth of the stem is constant in the threshing unit 3. To be kept.

The first auxiliary transfer device 17 is arranged in a front, lower, and rear height above the handling depth adjustment transfer device 16 and below the tip transfer device 15, and an intermediate portion of the pedicle is arranged between the transfer chain 17 a and the holding rail While being pinched with 17b, it conveys toward back upper direction. And the stem to the threshing feed chain 13 from the handling depth adjustment conveyance apparatus 16 is made to overlap the conveyance range of the 1st auxiliary conveyance apparatus 17 with the conveyance range of the handling depth adjustment conveyance apparatus 16 and the threshing feed chain 13. The delivery of firewood is surely performed.
Further, in the present embodiment, the position of the first auxiliary transport device 17 can be adjusted in the left-right direction (the direction of arrow A shown in FIGS. 6 and 7). In this way, the left and right positions of the first auxiliary transport device 17 can be adapted to the culm length of the culm and various culms can be transported satisfactorily.

  The second auxiliary transport device 18 is arranged outside the first auxiliary transport device 17 and inside the starting end of the threshing feed chain 13, and the stock side of the stalk is fed by the transport chain 18 a to the threshing feed chain 13. Transport toward the beginning. And by making the conveyance range of the second auxiliary conveyance device 18 overlap the conveyance range of the first auxiliary conveyance device 17 and the threshing feed chain 13, Delivery is performed reliably.

  A gap is formed between the first auxiliary conveyance device 17 and the second auxiliary conveyance device 18, and when the stock enters the gap, the stock source cannot be taken over in the threshing feed chain 13. Since there is a possibility of dropping the stems, the first takeover guide 19 is extended from the first auxiliary transfer device 17 side toward the start end side of the second auxiliary transfer device 18, and the first takeover guide 19 causes the The stock market side is surely guided onto the second auxiliary transport device 18.

  Further, the first takeover guide 19 is supported so as to be swingable up and down, and is configured to retreat and swing upward in response to contact with the handling depth adjusting and conveying device 16. As a result, the vertical swing range of the handling depth adjusting and conveying device 16 can be widened as much as possible, and it is possible to cope with extreme shortage. In the combine 1 according to the present invention, when the first takeover guide 19 is retracted and swung upward in accordance with the contact with the handling depth adjusting and conveying device 16, the tip of the first takeover guide 19 is swung upward. The more you move, the more you move inward. In this case, when the first takeover guide 19 swings to the vicinity of the upper limit position, it is possible to avoid the tip portion from projecting into the pedicle conveyance area, and therefore the conveyance of the shoot is inhibited by the first takeover guide 19. There is no inconvenience.

Further, when the first takeover guide 19 is retracted and swung to the upper limit position, it is preferable that the tip end portion enters the inside of the claw tip locus of the transfer chain 17 a provided in the first auxiliary transfer device 17. If it does in this way, when retreating and swinging to an upper limit position, the tip part of the 1st takeover guide 19 can be certainly retreated from the inside of the conveyance area of a pedicle.
Further, when the first takeover guide 19 is configured as described above, it is preferable to provide the second takeover guide 20 at the tip of the handling depth adjusting and conveying device 16. The second takeover guide 20 protrudes in the extension line direction of the handling depth adjusting and conveying device 16 and hardly functions when the handling depth adjusting and conveying device 16 is lowered, but the handling depth adjusting and conveying device 16 is raised. In this state, since it extends from the front end of the handling depth adjusting and conveying device 16 to the starting end side of the second auxiliary conveying device 18, the second auxiliary conveying is performed on the stock side of the stems instead of the first takeover guide 19. It can be led onto the device 18. Thereby, even in a state where the handling depth adjusting and conveying device 16 is raised, it is possible to reliably avoid the inconvenience that the stem stock comes into the inside of the second auxiliary conveying device 18.

  Further, the first takeover guide 19 of the present embodiment includes an attachment member 19a that is fixed to a fixed frame (for example, an attachment frame of the tip conveying device 15), a guide member 19b such as a round bar that guides the stem, and both And an elastic member 19c such as a leaf spring for connecting the guide member 19b and swinging the guide member 19b up and down according to the elastic deformation of the elastic member 19c. If the first takeover guide 19 is attached so that the elastic member 19c is inclined inward, when the first takeover guide 19 is swung upward according to the contact with the handling depth adjusting and conveying device 16, the first takeover guide 19 The tip portion moves inward as it swings upward. In this way, not only can the structure of the first takeover guide 19 be simplified, but also the durability can be improved. In the drawing, 19d is a long hole for adjusting the tip position of the guide member 19b.

  Further, in the present embodiment, the first auxiliary transport device 17 can be adjusted in the left-right position, and the first takeover guide 19 is supported by the fixed frame of the preprocessing unit 2. Even if it adjusts, it can avoid that the positional relationship of the 2nd auxiliary conveyance apparatus 18 and the 1st takeover guide 19 changes. Thereby, it is possible to satisfactorily carry over to the second auxiliary transport device 18 regardless of the left-right position adjustment of the first auxiliary transport device 17.

  According to the present embodiment configured as described, the handling depth adjusting and conveying device 16 that swings up and down with the stock base side of the stems harvested by the preprocessing unit 2 as the fulcrum, and the handling depth The threshing feed chain 13 of the threshing section 3 through the first auxiliary conveying device 17 arranged above the height adjusting conveying device 16 and the second auxiliary conveying device 18 arranged outside the auxiliary conveying device 17. And the first takeover guide 19 is extended from the first auxiliary transfer device 17 side toward the starting end side of the second auxiliary transfer device 18, and the second auxiliary transfer is carried out on the culm stock side by the takeover guide 19. In the combine 1 guided onto the apparatus 18, the first takeover guide 19 is supported so as to be able to swing up and down and retracted and swung upward in response to contact with the handling depth adjusting and conveying device 16. The tip of the Therefore, when the first takeover guide 19 swings to the vicinity of the upper limit position, it is possible to avoid the tip portion from projecting into the pedicle conveyance region. There is no inconvenience that is obstructed by the one takeover guide 19.

  Further, when the first takeover guide 19 is retracted and swung to the upper limit position, the tip end portion enters the inner side of the claw tip locus of the transport chain 17a provided in the first auxiliary transport device 17, so that the first takeover guide 19 is retracted to the upper limit position. When it does, the front-end | tip part of the 1st takeover guide 19 can be evacuated reliably from the conveyance area | region of a stem.

  In addition, since the first auxiliary transport device 17 can be adjusted in the left-right position and the first takeover guide 19 is supported by the fixed frame of the preprocessing unit 2, even if the left-right position of the first auxiliary transport device 17 is adjusted, The positional relationship between the auxiliary conveyance device 18 and the first takeover guide 19 can be maintained. Thereby, it is possible to satisfactorily carry over to the second auxiliary transport device 18 regardless of the left-right position adjustment of the first auxiliary transport device 17.

It is a whole side view of a combine. It is a whole top view of a combine. It is a principal part front view of a combine. It is a principal part side view which shows the state which lowered the handling depth adjustment conveyance apparatus. It is a principal part side view which shows the state which raised the handling depth adjustment conveyance apparatus. It is a principal part top view which shows the state which lowered the handling depth adjustment conveyance apparatus. It is a principal part top view which shows the state which raised the handling depth adjustment conveyance apparatus. It is a perspective view of a 1st takeover guide.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 2 Pretreatment part 3 Threshing part 13 Threshing feed chain 14 Back side conveyance part 15 Ear tip conveying apparatus 16 Handling depth adjustment conveying apparatus 17 First auxiliary conveying apparatus 18 Second auxiliary conveying apparatus 19 First takeover guide 20 Second takeover guide

Claims (2)

A handling depth adjusting and conveying device that swings up and down with the stock start side of the stems cut by the preprocessing unit as a fulcrum, and a first auxiliary conveying device disposed above the handling depth adjusting and conveying device And the second auxiliary conveying device arranged outside the auxiliary conveying device to convey to the threshing feed chain of the threshing unit, and the start end of the second auxiliary conveying device from the first auxiliary conveying device side In the combine that extends the takeover guide toward the side, and guides the stock side of the stem to the second auxiliary transport device by the takeover guide, the takeover guide is supported so as to be swingable up and down, and the handling depth While evacuating swings upward in response to Setto the adjusting transport device, when the distal end portion of the take-over guide is configured to move inward as to swing upward, the takeover guide is the upper limit position When swinging back to Combine the end, characterized in that the entering inside the claw end trajectory of conveyor chain provided in the first auxiliary transport device. Wherein the first auxiliary transport apparatus is freely horizontally positioning, claim 1 Symbol placement combine the takeover guide, characterized in that supported in the fixed frame of the pre-processing unit.

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