JP2011041505A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester by which delivering performance is improved when delivering grain culms after reaping to a feed chain by a delivering and conveying device. <P>SOLUTION: The combine harvester 1 is equipped with the delivering and conveying device 70 for delivering the grain culms after the reaping to the feed chain 50. The delivering and conveying device 70 is parallelly installed with the feed chain 50 along the conveying direction of the feed chain 50 so that the conveyance-starting terminal part 70a of the delivering and conveying device 70 may be positioned at the front side of the conveyance-starting terminal part 50a of the feed chain 50, and the conveyance-finishing terminal part 70b of the delivering and conveying device 70 may be positioned at the rear side of the conveyance-starting terminal part 50a of the feed chain 50. A transmission mechanism 80 is installed in the side of the feed chain 50 in the feed chain 50 and the delivering and conveying device 70, and between the conveyance-starting terminal part 50a of the feed chain 50 and the conveyance-finishing terminal part 70b of the delivering and conveying device 70 and the power of the feed chain 50 driven so as to be synchronized with the traveling speed is transmitted to the conveyance-finishing terminal part 70b of the delivering and conveying device 70 by the transmission mechanism 80. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a combine technology including a transfer device that transfers a harvested cereal to a feed chain of a threshing unit disposed behind the harvester.

  Conventionally, a succeeding conveying device near the conveying start end (front end) of the feed chain so that the harvested cereal can be reliably inherited from the harvesting unit to the feed chain of the threshing unit arranged behind it. Combines arranged in parallel are well known (see, for example, Patent Documents 1 and 2).

  In Patent Document 1, the transfer device is arranged on the inner side of the machine body near the feed start end of the feed chain. And the transmission mechanism for transmitting motive power from a feed chain to a succession conveyance apparatus was provided below between the conveyance start end part and conveyance termination | terminus part of a succession conveyance apparatus.

  However, since the vertical width of the transfer device has been increased, a space is formed in the central portion of the transfer device, and the transmission mechanism including the sprocket and the drive shaft is disposed in the space. When the kite is transported by the inherited transport device, the kite is caught in the transmission mechanism and the transport posture may be disturbed.

  Further, in Patent Document 2, the succession transfer device is arranged between the vertical transfer device and the feed chain, and is configured to be vertically rotatable with the transfer end portion side as a fulcrum. And the sprocket for driving a inheritance conveyance apparatus was arrange | positioned behind the sprocket arrange | positioned at the conveyance start end side of a feed chain. In addition, it is necessary to wind the chain on the non-conveyance side of the succession transport device by a predetermined angle in order to transmit power to the drive sprocket of the succession transport device. Further, the drive sprocket of the transfer device is coaxial with the driven sprocket that performs power transmission on the non-conveying side of the feed chain.

  Therefore, the rear part (conveyance terminal part side) of the transfer apparatus has been arranged below the front conveyance surface of the feed chain. Therefore, the sprocket on the transfer terminal side (rear side) of the transfer device must be enlarged to the extent that the transfer surface of the transfer device matches the transfer surface of the feed chain, and the transfer speed of the transfer device is fed. It was difficult to match the chain transport speed.

JP 2007-252227 A JP 2008-271823 A

  Then, this invention provides the combine which can improve the inheritance performance at the time of handing over the grain straw after cutting to a feed chain by a succession conveyance apparatus.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  In other words, the combine according to the first aspect of the present invention is the combine provided with the transfer device for transferring the harvested culm from the cut portion to the feed chain of the threshing portion arranged behind the cut portion. The transfer and transfer device is placed in the feed chain so that a start end is positioned in front of the transfer start end of the feed chain and a transfer end of the transfer and transfer device is positioned behind the transfer start end of the feed chain. The feed chain is arranged side by side along the conveyance direction of the feed chain, and the feed chain side of the feed chain and the inherited conveying device arranged in parallel, and the conveyance start end of the feed chain and the inherited conveying device A transmission mechanism is provided between the transfer end portion and the power of the feed chain that is driven in synchronization with the traveling speed is transmitted to the inherited transfer device by the transmission mechanism. It is to transmitted to the transfer terminal end portion.

  A combine according to a second aspect of the present invention is the combine according to the first aspect of the present invention, wherein the transmission mechanism is provided at a conveyance start end portion of the feed chain, and the drive side rotating body interlocked with the feed chain; A driven-side rotator that is provided behind the drive-side rotator and is linked to a drive shaft that extends from the transfer terminal portion of the transfer device to the feed chain side; and the drive-side rotator and the driven-side rotator And an endless drive body that is wound along the conveying direction of the feed chain.

  As effects of the present invention, the following effects can be obtained.

  In the combine which concerns on 1st invention, while a succession conveyance apparatus can be driven in synchronization with the travel speed of a combine with a feed chain, the inheritance area | region of the grain straw between a succession conveyance apparatus and a feed chain is expanded. be able to. Therefore, when the harvested culm is inherited from the reaping part to the feed chain by the inheriting and conveying device, the inheritance posture of the culm is stabilized and the inheritance performance of the culm is improved.

  In addition, it is not necessary to provide a transmission mechanism (power input unit in the transfer device) for transferring power from the feed chain to the transfer device, between the transfer start end and transfer end of the transfer device. When the cereal is transported by the inheritance transport device, the cereal is not caught in the inheritance transport device, and the disorder of the posture of transporting the cereal by this entrainment can be prevented.

  In the combine which concerns on 2nd invention, it becomes possible easily to comprise so that the conveyance surface of the conveyance termination | terminus part of a succession conveying apparatus may be along the conveyance surface of the conveyance start end part of a feed chain, and the inheritance of the cereal after cutting is carried out The inheritance performance can be improved so that the posture is not disturbed. Further, the transmission mechanism can be installed in a compact manner.

The side view which showed the whole structure of the combine. The top view which showed the whole structure of the combine. The schematic side view of a cutting part. The schematic plan view of a cutting part. The drive system diagram of a combine. The side view which showed the structure of the conveyance start end vicinity of a feed chain. The perspective view which showed the one part structure of the inheritance conveying apparatus and a transmission mechanism. The top view which showed the structure of the inheritance conveying apparatus and a transmission mechanism. The exploded top view which showed the structure of the transmission mechanism vicinity. The side view which showed the structure of the inheritance conveying apparatus.

  First, the overall configuration of the combine 1 according to an embodiment of the present invention will be described.

  As shown in FIGS. 1 and 2, the combine 1 includes a traveling unit 2, a mowing unit 3, a threshing unit 4, a sorting unit 5, a grain storage unit 6, a waste processing unit 7, and a control unit. 8 etc.

  The traveling unit 2 is provided in the lower part of the body frame 90. The traveling unit 2 includes a crawler traveling device 10 having a pair of left and right crawlers. The traveling unit 2 is configured to cause the airframe to travel when the crawler traveling device 10 is driven.

  The mowing unit 3 is provided at the front end of the body frame 90 so as to be movable up and down with respect to the body. The mowing unit 3 includes a weeding tool 11, a pulling device 12, a cutting device 13, a conveying device 30, and a mowing frame 14 that supports these devices. The mowing unit 3 uses the weeding tool 11 to weed the cereals in the field, causes the cereals after weeding by the pulling device 12, cuts the stock of the cereals that are caused by the cutting device 13, and the conveying device It is comprised so that the cereals after cutting | disconnection by 30 may be conveyed to the threshing part 4 side.

  As shown in FIGS. 1 and 2, the threshing portion 4 is provided on the left front portion of the body frame 90 and behind the reaping portion 3. The threshing unit 4 includes a feed chain 50, a handling drum 60 (see FIG. 5), and the like. The threshing unit 4 inherits the cereals conveyed from the reaping unit 3, conveys the cereals being conveyed to the side of the waste disposal unit 7 by the feed chain 50, threshs the cereals being conveyed by the handling cylinder 60, etc. It is comprised so that it may fall to the selection part 5. FIG.

  The sorting unit 5 is provided on the left side of the body frame 90 and is disposed below the threshing unit 4. The sorting unit 5 includes a rocking sorting device, a wind sorting device, a grain transporting device, and the like, and swings and sorts a processing object falling from the threshing unit 4 using the rocking sorting device. The wind is sorted by a wind sorting device, and swarf and dust are discharged to the outside by a swarf discharging device, while the grain can be transported to the grain storage unit 6 by the grain transporting device. The

  The grain storage part 6 is provided in the right rear part of the body frame 90, and is arrange | positioned at the right side of the threshing part 4 and the selection part 5. FIG. The grain storage unit 6 includes a grain tank 15, a grain discharge device 16, and the like. The grain storage unit 6 temporarily stores the grain transported from the selection unit 5 in the grain tank 15, and stores the grain being stored. It is constituted so that it can be discharged from the grain tank 15 by the grain discharging device 16 and further discharged to the outside after being conveyed in an arbitrary direction.

  The waste disposal unit 7 is provided at the rear of the machine frame 90 and behind the threshing unit 4. The waste disposal unit 7 includes a waste transporting device 62 (see FIG. 5), a waste cutting device 63 (see FIG. 5), and the like. The waste processing unit 7 passes the threshed rice cake conveyed from the threshing unit 4 to the outside as a waste without passing through the waste conveying device 62 and cutting it, or conveys it to the waste cutting device 63. It is configured to discharge to the outside after cutting.

  The control unit 8 is provided on the right front side of the body frame 90 and on the right side of the conveying device 30 of the cutting unit 3. The control unit 8 includes a cabin 17, a control seat 18, a steering handle 19, an operation tool such as an operation pedal, an operation lever, and a switch (not shown), an operation panel (not shown), and the like. The control unit 8 is configured such that the cockpit 18 and the steering handle 19 are covered by the cabin 17.

  In this manner, the combine 1 transmits the power of the engine 64 to the devices of the respective parts by operating the operation tools in the control unit 8, and causes the traveling unit 2 to travel the body while the harvesting unit 3 The threshing part 4 is reaped, the threshing part 4 threshs the cereals from the reaping part 3, the sorting part 5 sorts the processed product from the threshing part 4, and the grain storage part 6 makes the grain from the sorting part 5 Is stored at the same time as the waste processing unit 7 can discharge the waste from the threshing unit 4 to the outside.

  Next, the configuration of the cutting unit 3 will be described.

  The conveying device 30 scrapes the culm in the field, and then conveys the culm after cutting that has been cut by the cutting device 13 of the reaping unit 3 to the feed chain 50 of the threshing unit 4 provided behind the reaping unit 3. It is. As shown in FIGS. 3 and 4, the transport device 30 is supported by the cutting frame 14 and is disposed between the pulling device 12 and the transport start end portion 50 a (feed start end portion) of the feed chain 50.

  In the cutting unit 3, the cutting frame 14 includes a horizontal cutting input pipe 96 and a longitudinal transmission pipe 97 in the front-rear direction. The rear end portion of the vertical transmission pipe 97 is connected to the left and right middle portions of the cutting input pipe 96, and the cutting input pipe 96 is rotatable to a pair of left and right cutting stands 95 standing on the front portion of the body frame 90. Supported. The lifting cylinder is interposed between the front and rear halfway of the vertical transmission pipe 97 and the front part of the body frame 90, and the cutting frame 14 is rotated up and down around the cutting input pipe 96 by the expansion and contraction drive of the lifting cylinder. It is possible.

  The weeding tool 11, the pulling device 12, the cutting device 13, and the conveying device 30 are supported by the cutting frame 14. The weeding tool 11, the pulling device 12, and the conveying device 30 are arranged in this order from front to back. The cutting device 13 includes a cutting blade and is disposed behind the pulling device 12 and below the conveyance start end of the conveyance device 30.

  The weeding tool 11 is provided with seven weeding boards 11a for six strips. Each of these weed boards 11a is tapered, and is arranged side by side at an appropriate interval in the left-right direction, and is provided so as to protrude forward at the front lower end of the cutting frame 14.

  The pulling device 12 is provided with six pulling cases 12a. Each pulling case 12a includes a tine chain 12b. These pull-up cases 12a are arranged at an appropriate interval in the left-right direction behind the weeding tool 11, and are inclined in the front low rear height between the front lower end portion and the front upper end portion of the cutting frame 14. Established.

  The transport device 30 includes a scraping mechanism 31 and a transport mechanism. The scraping mechanism 31 is disposed on the front side of the transport device 30 and is provided to be a transport start end portion of the transport device 30. On the other hand, the transport mechanism is disposed on the rear side of the transport device 30 and is provided to be a midway transport portion and a transport end portion of the transport device 30.

  The scraping mechanism 31 includes left and right and center scraping devices 31a and six scraping wheels 31b. The left and right and center scraping devices 31a each include a pair of left and right protruding belts. The left and right and center scraping devices 31a are arranged side by side in the left-right direction behind the pulling case 12a, and are provided in an inclined shape with front, rear, and rear height.

  Each of the six scraping wheels 31b is a star wheel. Each of these scraping wheels 31b is disposed below the rear part of each protrusion-equipped belt of the left and right and center scraping devices 31a, and is provided in an inclined shape with front, rear, and rear heights.

  The transport mechanism includes a left and right and center lower transport device 32, a left and right and center tip transport device 36, an upper transport device 33, a vertical transport device 34, and an auxiliary transport device 35. Each transport device includes a chain.

  The lower conveyance device 32 on the left side is disposed behind the left picking device 31a, and extends from the left picking device 31a side toward the right diagonally rear side in a front-rear and rear-high inclination. The lower transfer device 32 on the right side is arranged behind the right side of the scraping device 31a, and is extended in an inclined shape with front, rear, and rear heights from the right side of the right side of the scraping device 31a toward the left oblique rear side. The central lower conveyance device 32 is disposed behind the central scratching device 31a, and is extended in an inclined shape with front, rear, and rear heights from the central scratching device 31a side toward the right oblique rear.

  The left-hand tip transport device 36 latches and transports the tip portion of the left-hand two-line harvested cereal rice bran, where the stock portion is sandwiched and transported by the left lower transport device 32. The right-hand tip transport device 36 latches and transports the tip portion of the two right-hand harvested cereal rice cakes in which the stock portion is nipped and transported by the right lower transport device 32. The center tip conveying device 36 latches and conveys the tip of the harvested cereal cocoons for the two central strips in which the stock portion is sandwiched and conveyed by the center lower conveying device 32.

The upper transfer device 33 is disposed behind the pulling device 12 and above the lower transfer device 32 on the right side, and extends from the right side of the right side take-up device 31a toward the left oblique rear side in an inclined shape with front, rear, and rear heights. Is done.
The vertical conveying device 34 is disposed behind the left lower conveying device 32 and below the upper conveying device 33, and is inclined in a front, rear, and rear height from the left lower conveying device 32 side toward the left oblique rear. It is extended.
The auxiliary conveyance device 35 is disposed behind the vertical conveyance device 34 and below the upper conveyance device 33, and from the vertical conveyance device 34 side to the rear, to the vicinity of the conveyance start end 50 a of the feed chain 50 of the threshing unit 4. It is extended.

  Further, in the cutting frame 14 that supports the weeding tool 11 and each device in this way, the cutting input shaft 37 (FIG. 5) is inserted inside the cutting input pipe 96, and a part of the cutting frame 14 is used. A cutting transmission shaft is inserted into a certain longitudinal transmission pipe 97 and other pipes. The pulling device 12, the cutting device 13, and the conveying device 30 are linked to the engine 64 via a power transmission mechanism including each cutting transmission shaft, the cutting input shaft 37, and the like to obtain power supplied from the engine 64. Can be driven.

  With such a configuration, when each device of the cutting unit 3 is driven, after the weeds 11 of the weeding tool 11 are weeded so that the cereals in the field are separated for each line, the pulling device 12 , The raising case 12a causes cereals after weeding. Subsequently, in the scraping mechanism 31 of the transport device 30, the left and right and center after pulling introduced from the left and right pulling cases 12a by the left and right and center scraping devices 31a and the respective scraping wheels 31b, respectively. The stockholder side of each of the two cereal grains is raked into a bundle. At this time, the cereal after moving is cut on the stock side by the cutting blade of the cutting device 13.

  Then, after cutting the cereals, in the transport mechanism of the transport device 30, the right lower strips 32 and the right tip transport device 36 transport the right two stalks to the left oblique rear, and the left lower transport device 32. And the left tip of the rice straw transporter 36 is transported to the right diagonally backward, and the central lower transport device 32 and the central tip transport device 36 transport the middle two strands of rice straw backward, The stock side of the cereals of the minute is joined in the vicinity of the conveyance end portion of the lower conveyance device 32 on the right side. Next, the upper conveyor device 33 conveys the heads of the stalks of six ridges to the left oblique rear while being gathered together, and is joined by the vertical conveyor device 34 in the vicinity of the conveyance termination portion of the lower conveyance device 32 on the right side. Then, the stock source side of the six cereal grains is transported rearward and upward toward the threshing unit 4, and the stock source side of the cereal is transferred from the vertical transport device 34 to the feed chain 50 of the threshing unit 4 by the auxiliary transport device 35. Passed through the transfer device 70.

  Next, a power transmission configuration from the engine 64 to each part will be described.

  As shown in FIG. 5, the output shaft of the engine 64 is connected to the drive shaft of the crawler type traveling device 10 of the traveling unit 2 via a transmission 66 so that the power of the engine 64 can be transmitted to the crawler type traveling device 10. The Further, the output shaft of the engine 64 is connected to the input shaft of the grain discharging device 16 of the grain storage unit 6 via a transmission mechanism, so that the power of the engine 64 can be transmitted to the grain discharging device 16.

  The output shaft of the engine 64 is connected to the input shaft 59 of the counter case 67 via a belt tension clutch, so that the power of the engine 64 can be transmitted to a transmission mechanism housed in the counter case 67. The input shaft 59 of the counter case 67 is further connected via a drive shaft of the handling cylinder 60 of the threshing unit 4 and a transmission mechanism so that power can be transmitted to the handling cylinder 60. The drive shaft of the handling cylinder 60 is connected to the input shaft of the waste transporting device 62 of the waste processing unit 7 via a transmission mechanism so that power can be transmitted to the waste transporting device 62.

  The transmission shaft 68 of the counter case 67 serves as an input shaft for each of the swing sorting device of the sorting unit 5, the wind sorting device including the red fan and the second fan, and the grain conveying device including the first conveyor and the second conveyor. It is connected via a transmission mechanism so that power can be transmitted to each device of the sorting unit 5. The transmission shaft 68 of the counter case 67 is also connected to the input shaft of the waste cutting device 63 of the waste processing unit 7 via a transmission mechanism so that power can be transmitted to the waste cutting device 63.

  The transmission shaft 69 of the counter case 67 is connected to the cutting input shaft 37 of the cutting unit 3 via a transmission mechanism. Further, another transmission shaft 65 of the counter case 67 is also connected to the output shaft 66a of the transmission 66 via a transmission mechanism. Thus, the power of the engine 64 can be transmitted to each device such as the transport device 30 including the auxiliary transport device 35 in the cutting unit 3 through the transmission 66 and the counter case 67 or only through the counter case 67 without passing through the transmission 66. It is said.

  A drive sprocket 52 is fixed to the feed chain shaft 51 of the counter case 67, and the feed chain 50 of the threshing unit 4 is wound around the drive sprocket 52. Thus, the power of the engine 64 can be transmitted to the feed chain 50 through the transmission 66 and the counter case 67 or only through the counter case 67 without passing through the transmission 66. The drive sprocket 52 is disposed near the left front part of the threshing unit 4.

  Then, power can be transmitted from the feed chain 50 to the transfer / transfer device 70 by a transmission mechanism 80 described later. That is, the power of the engine 64 is transmitted to each device of the cutting unit 3, the feed chain 50, and the transfer device 70 via the transmission 66, and these devices can be driven in synchronization with the traveling speed. .

  Next, the configuration near the feed chain 50 will be described.

  As shown in FIGS. 1 and 6, the feed chain frame 78 extends in the front-rear direction on the left side of the handling cylinder 60, and is supported on the rear side thereof by a vertical support shaft (not shown) so as to be rotatable. Thus, it is configured to be able to open and rotate in the left outer direction of the airframe around the support shaft.

  A first driven sprocket 53 is rotatably supported at the rear portion of the feed chain frame 78. A second driven sprocket 55 is rotatably supported on the front portion of the feed chain frame 78 via a rotating shaft 57. The second driven sprocket 55 is divided into left and right parts by a left half part 55a and a right half part 55b.

  A support arm 78a is provided in the middle of the feed chain frame 78 so as to protrude downward. The support arm 78 a is disposed behind the second driven sprocket 55 and closer to the second driven sprocket 55 than the first driven sprocket 53. The base ends of the drive sprocket 52 and the tension arm 79 are rotatably supported at the distal end portion of the support arm 78a.

  The drive sprocket 52 is fitted to the protruding end of the feed chain shaft 51 protruding toward the side of the machine body so as not to be relatively rotatable by spline fitting or the like. The drive sprocket 52 is disposed below the first driven sprocket 53 and the second driven sprocket 55.

  A tension roller 54 is rotatably supported on the distal end side of the tension arm 79. The tension arm 79 is biased by a spring 79a so as to rotate upward with the base end side as a rotation fulcrum.

  The feed chain 50 is wound around the first driven sprocket 53, the second driven sprocket 55, the drive sprocket 52, and the tension roller 54 while being tensioned by the tension roller 54, and can be rotated by the rotation of the drive sprocket 52. It is said that.

  By releasing a lock mechanism (not shown) provided on the front end side of the feed chain frame 78, the feed chain 50 can be opened and rotated in the left outer direction of the machine body together with the feed chain frame 78.

  Next, the configuration of the transmission mechanism 80 will be described.

  The transmission mechanism 80 is configured to transmit the feed chain 50 that is rotationally driven in synchronization with the traveling speed to the transfer device 70. As shown in FIGS. 6, 7, 8, and 9, the transmission mechanism 80 is provided in the inner peripheral space at the center of the left and right of the conveyance start end 50 a of the feed chain 50.

  Specifically, the transmission mechanism 80 has a left-right direction between the bearings 57a and 57a of the rotary shaft 57, and a front-rear direction thereof is a transfer start end 50a (second driven sprocket 55) of the feed chain 50 and a transfer transfer device. The feed chain 50 is arranged in the conveyance direction so as to be located in a region R1 between the conveyance termination unit 70b (driving side sprocket 73) of 70.

  The transmission mechanism 80 includes a driving sprocket 83 that is a driving side rotating body, a driven sprocket 84 that is a driven side rotating body, a chain 85 that is an endless driving body, and a cover 86 that covers and supports these.

The drive sprocket 83 is a substantially central portion in the axial center direction of the rotary shaft 57 and is fixed between the bearings 57 a and 57 a of the rotary shaft 57. That is, the drive sprocket 83 is coaxial with the second driven sprocket 55 of the feed chain 50 and is disposed between the left half 55a and the right half 55b of the second driven sprocket 55.
The driven sprocket 84 is fixed to one side of the transfer conveying drive shaft 81 supported by the cover 86 and is disposed rearward and upward with a predetermined width from the drive sprocket 83.

  The chain 85 is wound around the drive sprocket 83 and the driven sprocket 84. Power is transmitted from the drive sprocket 83 to the driven sprocket 84 by the chain 85. The transmission mechanism 80 of the present embodiment is a chain transmission mechanism, but may be a belt transmission mechanism or a gear transmission mechanism.

  These drive sprocket 83, driven sprocket 84, and chain 85 are covered with a cover 86. The cover 86 is a box-shaped member, and extends in the front-rear direction in an inclined state of front, rear, and rear height along the conveyance side of the feed chain 50. A cover support member 87 is fixed to the upper portion of the cover 86, and the cover 86 is supported by the feed chain frame 78 via the cover support member 87.

  A rotary shaft 57 is rotatably supported at the front portion of the cover 86 via bearings 57a and 57a and extends in the left-right direction. The rotating shaft 57 protrudes from the left and right side surfaces of the cover 86 toward the left side or the right side. The left half 55a of the second driven sprocket 55 is located on the left side of the protruding rotating shaft 57. The right half 55b of the second driven sprocket 55 is fixed to each other.

  At the rear portion of the cover 86, a transfer conveying drive shaft 81 is rotatably supported via a bearing 82 described later, and extends in the left-right direction in parallel with the rotation shaft 57. And this inheritance conveyance drive shaft 81 protrudes toward the right side from the right side surface of the cover 86, and the drive side sprocket 73 of the inheritance conveyance device 70 is fixed to the right end portion thereof. The bearing 82 is fixed to the feed chain frame 78 via a cover support member 87.

  Thus, by covering the drive sprocket 83, the driven sprocket 84, and the chain 85 with the cover 86, it becomes possible to prevent these members from interfering with the feed chain 50, and these members. It is possible to prevent entrapment of sawdust and the like. Further, the transmission mechanism 80 can be arranged in a compact manner by arranging the transmission mechanism 80 in the inner peripheral space at the center of the left and right of the conveyance start end 50a of the feed chain 50.

  Next, the configuration of the transfer device 70 will be described.

  As shown in FIG. 3, FIG. 4, FIG. 6 and FIG. 8, the transfer device 70 is a device that transfers the stock side of the cereals conveyed from the auxiliary transfer device 35 to the feed chain 50. The transfer and transfer device 70 has a longitudinal direction in the front-rear direction (carrying direction of cereals), and a conveyance start end portion of the feed chain 50 between a conveyance termination portion 35b of the auxiliary conveyance device 35 and a conveyance start end portion 50a of the feed chain 50. 50a is provided.

  The succession transfer device 70 is attached to the right side of the transfer start end portion 50 a of the feed chain 50. The transfer and transfer device 70 is arranged on the right side of the transfer start end 50a of the foot chain 50 so that the entire transfer transfer device 70 and the transfer start end 50a of the feed chain 50 are arranged in parallel with each other in plan view. It is arranged on the left side of the auxiliary conveyance device 35 so that 70a is located on the lower left side of the conveyance terminal portion 35b of the auxiliary conveyance device 35.

  As shown in FIGS. 7, 8, and 10, the transfer device 70 includes a support member 71 that is a main structure of the transfer device 70, a chain 72 that is a portion that transfers the cereal straw, and a drive side A sprocket 73, a driven sprocket 74, and a sprocket support member 77 having a tension mechanism are provided.

  The support member 71 is formed by bending a single plate, and includes an attachment portion 71 a attached to the feed chain frame 78 and a guide portion 71 b that guides and supports the conveyance side (upper side) of the chain 72.

  The mounting portion 71a has both left and right side surfaces as vertical surfaces in the vertical direction, and is fixed to the front side surface of the feed chain frame 78 with bolts or the like on this side surface. The guide portion 71b extends from the mounting portion 71a upward and in the front-rear direction, and the upper end surface is a surface orthogonal to the left and right side surfaces, and the front low rear height is inclined along the conveying side of the feed chain 50 in a side view. It is formed to become.

  The drive-side sprocket 73 is fixed to the right side of the transfer conveying drive shaft 81 and is arranged coaxially with the driven sprocket 84. A bearing 82 having a predetermined left-right width is externally fitted between the drive-side sprocket 73 and the driven sprocket 84 of the transfer conveying drive shaft 81.

  The driven sprocket 74 is rotatably supported by a sprocket support member 77 via a rotation shaft 75 and is disposed on the front lower side of the drive side sprocket 73. The pivot shaft 75 extends in the left-right direction in parallel with the inherited transport drive shaft 81.

  Here, the drive side sprocket 73 is disposed rearward of the second driven sprocket 55 of the feed chain 50, and the driven side sprocket 74 is disposed forward of the second driven sprocket 55. That is, the second driven sprocket 55 is disposed between the driving side sprocket 73 and the driven side sprocket 74 in a side view.

  The chain 72 is wound around the drive side sprocket 73 and the driven side sprocket 74. In the chain 72, the conveyance side (upper side) is in an inclined state of a front low rear height along the conveyance side of the feed chain 50, and the rear portion of the conveyance side overlaps the front end portion of the feed chain 50 on the conveyance side in a side view. Are arranged as follows. That is, the chain 72 is disposed such that the conveyance surface on the conveyance end portion side is located on the same plane as the conveyance surface on the conveyance start end side of the feed chain 50.

  As shown in FIG. 10, the sprocket support member 77 includes a bracket 77a, a rod 77b, an elastic member 77c, and a support body 77d.

  The bracket 77 a is formed by bending a plate into a substantially U shape when viewed from the side, and is fixed to the side surface of the mounting portion 71 a of the support member 71. Insertion holes are respectively formed in the front plate and the rear plate of the bracket 77a, and the rod 77b can be inserted into the front and rear insertion holes.

  The rod 77b is inserted into the front and rear insertion holes of the bracket 77a, and is supported by the bracket 77a so as to be slidable in the front-rear direction. The rod 77b protrudes forward from the front plate of the bracket 77a.

  The elastic member 77c is configured by a compression coil spring or the like. The elastic member 77c is fitted on the rod 77b between the front plate and the rear plate of the bracket 77a, and urges the rod 77b to slide forward. A nut or the like is screwed on the rod 77b so that the urging force can be adjusted.

  The support 77d is formed by bending a plate into a substantially U shape that opens forward in a plan view, and is fixed to the protruding end (front end) of the rod 77b. The support body 77d arranges the driven sprocket 74 between the left and right side plates and rotatably supports these side plates via a rotation shaft 75.

  In this way, in the transfer and transfer device 70, the chain 72 is tensioned by the sprocket support member 77, and the drive-side sprocket 73 positioned on the rear end side of the transfer and transfer device 70 and the front end of the transfer and transfer device 70. It is wound between the driven sprocket 74 located on the side and can be driven to rotate by the rotation of the driving sprocket 73.

  In such a configuration, the transfer transfer device 70 is located on the left side of the auxiliary transfer device 35, and the transfer start end portion 70a (the front end portion of the transfer transfer device 70) is an auxiliary transfer device as shown in FIGS. 35, which is located in front of and below the conveyance termination portion 35 b (the rear end portion of the auxiliary conveyance device 35), and the conveyance termination portion 70 b (the rear end portion of the transfer conveyance device 70) is the conveyance termination portion of the auxiliary conveyance device 35. It is arranged in parallel with the auxiliary conveyance device 35 so as to be positioned behind and below the rear portion 35b (the rear end portion of the auxiliary conveyance device 35). And the succession conveyance apparatus 70 is arrange | positioned so that the conveyance start end part 70a side of the succession conveyance apparatus 70 may overlap with the conveyance termination part 35b side of the auxiliary conveyance apparatus 35 in the side view of the combine 1. FIG.

  As shown in FIGS. 1 and 3, the transfer device 70 is located on the right side of the conveyance start end 50 a (the front end of the feed chain 50) of the feed chain 50 in the conveyance direction (front-rear direction) of the feed chain 50. Along with the feed chain 50, it is arranged side by side. Specifically, in the transfer conveying device 70, the conveyance start end portion 70a is located in front of the conveyance start end portion 50a of the feed chain 50, and the conveyance end portion 70b is located behind the conveyance start end portion 50a of the feed chain 50. As shown in FIG.

  The transfer conveying device 70 has a transfer start end portion 50a (second driven sprocket 55) of the feed chain 50 between the transfer start end portion 70a and the transfer end portion 70b of the transfer transfer device 70 in a side view of the combine 1. It arrange | positions so that a part of each other may overlap. In addition, the transfer device 70 is arranged so that the conveyance surface thereof is aligned with the conveyance surface of the feed chain 50 in a portion overlapping the feed chain 50 in a side view.

  With such a configuration of the transfer device 70, the transfer region R2 of the culm is enlarged when the chopped rice cake is passed to the feed chain 50 by the transfer device 70 (see FIGS. 6 and 8). . Therefore, the inheritance posture of the corn straw between the inheritance conveyance apparatus 70 and the feed chain 50 is stabilized, and the inheritance performance of the corn straw is improved.

  Further, the transfer device 70 is arranged in parallel on the left and right so as to be parallel to the transmission mechanism 80. Specifically, the rotation shaft 57 that supports the drive sprocket 83, the transfer transfer drive shaft 81 that supports the driven sprocket 84 and the drive side sprocket 73, and the rotation shaft 75 that supports the driven side sprocket 74, respectively. Are arranged in parallel with the axial direction of the left and right as the horizontal direction. A chain 85 wound around the drive sprocket 83 and the driven sprocket 84 and a chain 72 wound between the drive side sprocket 73 and the driven side sprocket 74 are arranged in parallel to each other.

  By configuring in this way, the harvested culm is conveyed toward the rear outer side (rear left side) by the conveying action of the auxiliary conveying device 35, whereas the inherited conveying device 70 has a longitudinal rotation. Since the rotation does not have a lateral conveying action, it is conveyed backward by the conveying action of the succession conveying apparatus 70. Therefore, it is possible to prevent the handling position of the cereal from being shifted to the side.

  Next, the power transmission from the feed chain 50 to the transfer / transfer device 70 will be described in detail.

  As shown in FIGS. 5 and 6, the power from the engine 64 is transmitted to the feed chain shaft 51 through the counter case 67 as described above, and the drive sprocket 52 fixed to the feed chain shaft 51 rotates. Due to the rotation of the drive sprocket 52, the feed chain 50 is driven to rotate, and the second driven sprocket 55 is rotated.

  As the second driven sprocket 55 rotates, the rotation shaft 57 that supports the second driven sprocket 55 rotates, and the drive sprocket 83 of the transmission mechanism 80 on the rotation shaft 57 also rotates. With this rotation of the drive sprocket 83, the chain 85 is driven to rotate, and the driven sprocket 84 is rotated.

  As the driven sprocket 84 rotates, the transfer conveying drive shaft 81 rotates, and the drive-side sprocket 73 on the transfer conveying drive shaft 81 also rotates. With this rotation of the drive side sprocket 73, the chain 72 is driven to rotate, and the driven side sprocket 74 is rotated.

  In this way, the transfer conveying device 70 is driven. That is, the power is transmitted from the feed chain 50 driven in synchronization with the traveling speed to the transfer conveying device 70 via the transmission mechanism 80, and the transfer conveying device 70 is also driven in synchronization with the traveling speed. As a result, at the time of cutting operation, when the traveling speed is increased and the amount of harvested culm in the harvesting unit 3 is increased, the driving speed of the transfer conveying device 70 is also increased, and the culm from the conveying device 30 is transferred and transferred. The apparatus 70 smoothly inherits the feed chain 50. On the other hand, when the traveling speed is reduced and the amount of harvested culm in the harvesting unit 3 is reduced, the driving speed of the transfer device 70 is also decreased, and the cereal from the transport device 30 is fed into the feed chain by the transfer device 70. 50 will be inherited smoothly.

  As mentioned above, the combine 1 which concerns on one Embodiment of this invention comprises the inheritance conveyance apparatus 70 which inherits the grain culm after cutting from the cutting part 3 to the feed chain 50 of the threshing part 4 arrange | positioned in the back. The transfer start end portion 70a of the transfer conveying device 70 is positioned in front of the transfer start end portion 50a of the feed chain 50, and the transfer end portion 70b of the transfer transfer device 70 is connected to the transfer start end portion 50a of the feed chain 50. The transfer transport device 70 is arranged in parallel with the feed chain 50 along the transport direction of the feed chain 50 so as to be positioned rearward, and the feed chain 50 side of the feed chain 50 and the transfer transport device 70 installed side by side. In addition, a transmission mechanism 80 is provided between the conveyance start end portion 50a of the feed chain 50 and the conveyance end portion 70b of the transfer conveyance device 70, so that the traveling speed is the same as the traveling speed. It is intended to transmission to the transfer terminal end portion 70b for taking over the transport device 70 through the transmission mechanism 80 the power of the feed chain 50 driven by.

  Thus, the transfer device 70 can be driven in synchronism with the travel speed of the combine 1 together with the feed chain 50, and the cereal inheritance region R2 between the transfer device 70 and the feed chain 50 can be enlarged. Can do. Therefore, when the harvested culm is inherited from the reaping part 3 to the feed chain 50 by the inheriting and conveying device 70, the inheritance posture of the culm is stabilized and the inheritance performance of the culm is improved.

  Further, a transmission mechanism for transmitting power from the feed chain 50 to the transfer conveying device 70 (power input portion in the transfer conveying device 70) is provided between the transfer start end portion 70a and the transfer end portion 70b of the transfer transfer device 70. Since it is not necessary to provide the cereal, the cereal is no longer caught in the succession transport device 70 when being transported by the succession transport device 70, and disturbance of the transport posture of the cereal can be prevented.

  In the combine 1 according to the embodiment of the present invention, the transmission mechanism 80 is provided in the conveyance start end 50a of the feed chain 50, particularly in the inner circumferential space thereof, and is connected to the drive sprocket 83 (drive side) in conjunction with the feed chain 50. Rotator) and a driven sprocket 84 provided behind the drive sprocket 83 (drive-side rotator) and interlocked with a transfer conveying drive shaft 81 extending from the transfer terminal end portion 70b of the transfer transfer device 70 to the feed chain 50 side. A chain 85 (endless drive body) wound around the feed chain 50 in the conveying direction of the (driven driven rotator), the drive sprocket 83 (drive side rotator), and the driven sprocket 84 (driven side rotator); It shall be equipped with.

  This makes it easy to configure the transfer surface of the transfer terminal end portion 70b of the transfer and transfer device 70 along the transfer surface of the transfer start end portion 50a of the feed chain 50, and the inheritance posture of the cereal after cutting is disturbed. Thus, the inheritance performance can be improved. Further, the entire transmission mechanism 80 is disposed inside the conveyance start end portion 50a of the feed chain 50, and the transmission mechanism 80 can be installed in a compact manner.

DESCRIPTION OF SYMBOLS 1 Combine 3 Cutting part 4 Threshing part 50 Feed chain 50a Conveyance start end part 70 Successive conveyance apparatus 70a Conveyance start end part 70b Conveyance end part 80 Transmission mechanism 81 Successive conveyance drive shaft 83 Drive sprocket (drive side rotary body)
84 Driven sprocket (driven rotor)
85 chain (endless drive)

Claims (2)

In a combine equipped with a transfer and transfer device that transfers the cereal after cutting to the feed chain of the threshing unit arranged behind the cutting unit,
The transfer start end of the transfer device is positioned in front of the transfer chain transfer start end, and the transfer end of the transfer device is positioned rearward of the feed chain transfer start end. A conveying device is juxtaposed with the feed chain along the conveying direction of the feed chain,
Traveling by providing a transmission mechanism on the feed chain side of the feed chain and the transfer device that are arranged side by side and between the transfer start end of the feed chain and the transfer end of the transfer device A combine that transmits the power of the feed chain that is driven in synchronism with speed to the transfer terminal portion of the transfer device by the transmission mechanism. The transmission mechanism is
A drive-side rotator that is provided at a conveyance start end of the feed chain and interlocks with the feed chain;
A driven-side rotator that is provided behind the drive-side rotator and that interlocks with a drive shaft that extends from the transfer terminal portion of the transfer device to the feed chain side;
An endless driving body wound around the driving-side rotating body and the driven-side rotating body along the conveying direction of the feed chain;
The combine according to claim 1.

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