JP2016154484A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine that can smoothly convey grain culm to a feed chain.SOLUTION: A combine 1 includes a vertical conveying unit 34 for transferring grain culm to a feed chain 50 for gripping a root side of the grain culm during threshing, and a take-over conveying mechanism 70 for taking over the grain culm from the vertical conveying unit 34. The vertical conveying unit 34 is movably structured in order to control a threshing depth, and the position of the take-over conveying mechanism 70 with respect to the vertical conveying unit 34 moves according to the position of the vertical conveying unit 34. The combine 1 is configured such that a conveyance starting end 70a rotates in the direction to be separated from the center of the machine body centering on a rotation center P2 when the vertical conveying unit 34 moves from a center of a machine body to the direction to be separated, and also the conveyance starting end 70a rotates in the direction to be separated from the center of the machine body centering on the rotation center P2 when the vertical conveying unit 34 moves to the direction to be separated from the center of the machine body.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a combine.

  2. Description of the Related Art Conventionally, a combiner including a vertical conveying device that conveys cereals to a threshing device and a feed chain is known (see Patent Document 1). The combine described in Patent Document 1 detects the length of the cereals conveyed in the vertical conveying device by a sensor. Furthermore, this combine automatically adjusts the handling depth position of the vertical conveying device with respect to the feed chain in accordance with the length of the hook to be detected. At this time, the vertical conveying device rotates around the starting end of the vertical conveying device. And while the height position of the termination | terminus part of a vertical conveying apparatus moves up and down, the position of the left-right direction of a termination | terminus part moves.

  Further, there is known a combine in which a transfer mechanism is provided between an end conveyance mechanism of a cutting unit including a vertical conveyance device and a feed chain (see Patent Document 2). The combine described in Patent Document 2 can reliably deliver cereal grains from the terminal conveyance mechanism to the feed chain via the inheritance conveyance mechanism.

Japanese Patent Laid-Open No. 10-155338 JP 2010-51219 A

  However, for example, when the cereals to be conveyed are long and the handling depth position of the vertical conveyance device is adjusted from the deep handling position to the shallow handling position, the terminal conveyance mechanism and feed chain of the cutting unit including the vertical conveyance device The interval between and widens. In such a case, if the inheritance transport mechanism stays in the same posture, there is a risk that cereals may spill out from the terminal transport mechanism of the reaping unit without the stock source of the rice straw being placed on the succession transport mechanism from the terminal transport mechanism. is there. Therefore, even in such a case, there is a demand for a combine that can smoothly convey the cereal to the feed chain by the inheritance and transport mechanism accurately inheriting the cereal to the feed chain.

  An object of this invention is to provide the combine which can convey a grain candy smoothly to a feed chain.

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

The invention according to claim 1
A vertical transfer device that delivers the cereal to a feed chain that holds the cereal base at the time of threshing;
In a combine equipped with a transfer mechanism that inherits cereal grains from the vertical transfer device,
The vertical conveying device is configured to be movable in order to adjust the handling depth,
The position of the succession transport mechanism with respect to the vertical transport device is moved according to the position of the vertical transport device.

The invention according to claim 2 is the combine according to claim 1,
When the vertical transport device moves in a direction away from the center of the machine body, the succession transport mechanism has an end portion on the vertical transport device side of the transport mechanism that is more feedable than an end portion on the vertical transport device side. The end on the vertical transport device side when the vertical transport device rotates in a direction away from the center of the machine body around a predetermined rotation axis located on the chain side and moves in a direction approaching the center of the machine body The unit is configured to rotate in a direction approaching the center of the airframe around the rotation axis.

The invention according to claim 3 is the combine according to claim 1 or claim 2,
An upper conveying device that conveys the ear of the cereal, and
An upper transport drive shaft for transmitting power to the upper transport device;
A transfer conveying drive shaft that transmits power to the transfer conveying mechanism via the upper transfer driving shaft;
The inheritance transport mechanism rotates around the inheritance transport drive shaft.

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

  According to the invention which concerns on Claim 1, it can prevent that the position of the inheritance conveyance mechanism with respect to a vertical conveying apparatus leaves | separates. Therefore, it is possible to prevent spilling of the cereal and to smoothly transport the cereal to the feed chain. Therefore, it is possible to provide a combine that can smoothly convey the cereal to the feed chain.

  According to the second aspect of the present invention, the inheritance transport mechanism can accurately inherit the cereal from the vertical transport device, and can stably deliver the cereal from the inheritance transport mechanism to the feed chain. Therefore, it is possible to provide a combine that can smoothly convey the cereal to the feed chain.

  According to the invention which concerns on Claim 3, a succession conveyance drive shaft and a succession conveyance mechanism can be arrange | positioned compactly with respect to an upper conveyance drive shaft. Further, the transfer mechanism has a configuration in which power is transmitted from the cutting unit side including the upper transfer device and the vertical transfer device, and power is transmitted to the transfer transfer mechanism at a position close to the vertical transfer device. The movement of the conveyance mechanism can easily correspond to the movement of the vertical conveyance device. Therefore, it is possible to provide a combine that can smoothly convey the cereal to the feed chain.

It is a side view of a combine. It is a top view of a combine. It is a schematic side view of the harvesting part of a combine. It is a schematic plan view of the harvesting part which shows the combine picking device and the conveying device. It is a block diagram which shows the mechanism which transmits the motive power of an engine. It is an enlarged side view of the conveyance start end part of a feed chain. It is an enlarged plan view of the periphery of the conveyance termination | terminus part of a vertical conveying apparatus. It is an enlarged side view of the periphery of the conveyance termination | terminus part of a vertical conveying apparatus. It is a figure which shows the control system regarding the structure which rotates a succession conveyance mechanism. It is an enlarged plan view of the periphery of the conveyance terminal part of a vertical conveying apparatus which shows rotation of a vertical conveying apparatus and rotation of a succession conveyance mechanism. It is an enlarged side view of the periphery of the conveyance termination | terminus part of a vertical conveying apparatus which shows rotation of a vertical conveying apparatus and rotation of a succession conveyance mechanism. It is a flowchart of the control system regarding the structure which rotates a succession conveyance mechanism.

  The technical idea of the present invention can be applied to a combine provided with a vertical transfer device and a succession transfer mechanism. Below, the combine 1 as embodiment of this invention is demonstrated.

FIG. 1 is a side view of the combine 1. FIG. 2 is a front view of the combine 1.
In the following, the direction of the arrow A shown in FIG. 1 is the forward direction of the traveling direction. Moreover, in FIG. 1, the front-back direction and the up-down direction of the combine 1 are represented. In FIG. 2, the front-back direction and the left-right direction of the combine 1 are represented.

  As shown in FIG. 1, the combine 1 includes an engine 64, a traveling unit 2, a mowing unit 3, a threshing unit 4, a sorting unit 5, a grain storage unit 6, a waste disposal unit 7, and a control unit 8. The traveling unit 2 is provided at the lower part of the body frame 9. The traveling unit 2 includes a crawler traveling device 10 including a pair of left and right crawlers. The crawler type traveling device 10 is driven by receiving engine power.

  The cutting unit 3 is provided at the front end of the body frame 9 so as to be movable up and down. The threshing unit 4 is a left front portion of the body frame 9 and is provided behind the cutting unit 3. The threshing unit 4 includes a feed chain 50. The threshing unit 4 inherits the culm conveyed from the reaping unit 3 and conveys it to the waste processing unit 7 by the feed chain 50. The feed chain 50 grips the culm stock side during threshing. The sorting unit 5 is provided on the left side of the machine body frame 9 and is disposed below the threshing unit 4.

  As shown in FIG. 2, the grain storage unit 6 is provided on the right side of the machine body frame 9 and is arranged on the right side of the threshing unit 4 and the sorting unit 5. The grain storage unit 6 includes a Glen tank 15. The Glen tank 15 temporarily stores the grains conveyed from the sorting unit 5. The stored grain is discharged from the glen tank 15 by the discharge device 16. The waste disposal unit 7 is provided at the rear of the machine frame 9 and behind the threshing unit 4.

  The control unit 8 is provided on the right front side of the body frame 9 and on the upper 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 (not shown), and an operation panel (not shown). The operation tool includes an operation pedal, an operation lever, and various switches (not shown). The control unit 8 is configured such that the cockpit 18 and the steering handle 19 are covered by the cabin 17.

Next, the configuration of the cutting unit 3 will be described with reference to FIGS.
FIG. 3 is a schematic side view of the cutting unit 3 of the combine 1.

  The cutting part 3 has a structure for six-row cutting. In addition, the structure of the cutting part 3 of the combine 1 is not limited to the thing for six-row cutting.

  As shown in FIG. 3, the cutting unit 3 includes a weeding tool 11, a pulling device 12, a cutting device 13, a conveying device 30, a scraping device 31, and a cutting frame 14 that supports these devices. The weeding tool 11, the pulling device 12, and the conveying device 30 are arranged in this order from the front to the rear. The cutting device 13 is disposed below the transport device 30. The cutting device 13 includes a cutting blade.

  The cutting frame 14 includes a cutting input case 96 facing in the left-right direction and a vertical transmission case 97 facing in the front-rear direction. The cutting input case 96 is rotatably supported by a pair of left and right mounts 95. A rear end portion of the vertical transmission case 97 is connected to the midway portion of the cutting input case 96. In addition, a lifting cylinder 23 is connected to the middle part of the longitudinal transmission case 97 and the front part of the body frame 9. The cutting frame 14 rotates around the cutting input case 96 by the expansion and contraction of the lifting cylinder 23.

  As shown in FIG. 2, the weeding tool 11 includes seven weeding boards 11a for six strips. These seven weeding boards 11a are provided at the lower front end of the cutting frame 14 and are arranged at appropriate intervals in the left-right direction. The tip of each weed board 11a has a pointed shape so as to protrude forward. Each weed plate 11a separates the culm that is to be harvested from the cereal that is left in the field, and the sorghum that is to be harvested is separated for each line.

  The pulling device 12 causes the cereals separated for each line by each weed board 11a. The pulling device 12 includes six pulling cases 12a for six strips. As shown in FIG. 3, each raising case 12a covers the chain 12b with tine. The six elevating cases 12a are arranged at an appropriate interval in the left-right direction behind the weeding tool 11. Each pulling case 12a is tilted rearward so that the front side of each pulling case 12a is positioned below the rear side.

  The cocoon of the uncut grain culm caused by the pulling device 12 is raked backward by the rake device 31. The picking device 31 includes a left and right and a center picking mechanism 31a and six picking wheels 31b. Each scraping mechanism 31a includes a pair of left and right protruding belts 31c (see FIG. 4). The respective scraping mechanisms 31 a are arranged along the left-right direction behind the pulling device 12. Each scratching mechanism 31a is tilted backward so that the front side of each scratching mechanism 31a is positioned below the rear side.

  Each scraping wheel 31b is disposed below each belt 31c with protrusions. Each scratching wheel 31b is tilted rearward so that the front side of each scratching wheel 31b is positioned below the rear side.

Next, the transport device 30 will be further described with reference to FIG.
FIG. 4 is a schematic plan view of the cutting unit 3 showing the scavenging device 31 and the transport device 30 of the combine 1.

  The conveyance device 30 is a device that conveys the culm after scraping and cutting to the feed chain 50. The conveyance device 30 is supported by the cutting frame 14 and is disposed between the pulling device 12 and the conveyance start end 50a of the feed chain 50 (see FIG. 3). The transfer device 30 includes left and right and center lower transfer devices 32L, 32R, and 32C, left and right and center tip transfer devices 33L, 33R, and 33C, a vertical transfer device 34, an auxiliary transfer device 35, and an upper transfer device 36.

  The left lower transfer device 32L is disposed on the rear upper side of the left scraping mechanism 31a. The conveyance start end portion of the left lower conveyance device 32L is positioned above the scraping wheel 31b disposed on the leftmost side, and the conveyance end portion is positioned on the right rear side of the conveyance start end portion. The left lower conveyance device 32L conveys the left two cereal stocks while holding the stock.

  The central lower transfer device 32C is disposed on the right side of the left lower transfer device 32L, above the central scratching mechanism 31a. The conveyance start end portion of the center lower conveyance device 32C is located above the third scraping wheel 31b from the right, and the conveyance end portion is located on the right rear side of the conveyance start end portion. The center lower conveyance device 32C conveys the cereal stocks for the middle two stalks.

  The right lower transfer device 32R is disposed on the rear upper side of the right scratching mechanism 31a. The conveyance start end portion of the lower right conveyance device 32R is located above the scraping wheel 31b arranged on the rightmost side, and the conveyance end portion is located obliquely to the left of the conveyance start end portion. The lower right transport device 32R conveys while holding the stock of the right side of the cereal rice cake, and merges the stock of the cereal stock of the middle 2 side and the stock of the left side of the cereal rice cake. Transport while.

  The vertical conveying device 34 delivers the cereal to the feed chain 50. Specifically, the vertical conveying device 34 conveys the stock of the six cereal grains inherited from the conveying terminal end in the conveying path of the lower right conveying device 32R to the auxiliary conveying device 35 and conveys it rearward and upward. The vertical conveying device 34 is located rearward of the lower conveying devices 32L, 32R, and 32C, and is inclined rearward so that the front end thereof is located below the rear end. In addition, the front end portion of the vertical transfer device 34 is positioned near the end portion in the transfer path of the right lower transfer device 32R, and the rear end portion is positioned obliquely to the left of the front end portion and forward of the feed chain 50.

  Further, the vertical conveying device 34 is configured to rotate around a rotation center P1 located at the front portion thereof. The rotation center P1 tilts forward from the vertical direction and tilts to the right. The vertical conveyance device 34 can rotate in the left-right direction and the up-down direction about the rotation center P1. Thereby, since the position which delivers a stock company to the feed chain 50 is adjusted, the handling depth of the corn straw conveyed to the threshing part 4 can be changed. As described above, the vertical conveying device 34 is configured to be movable in order to adjust the handling depth.

  The auxiliary conveyance device 35 conveys the six cereal grains inherited from the terminal portion in the conveyance path of the vertical conveyance device 34 while gripping the cereal to the threshing unit 4. The auxiliary conveyance device 35 holds a portion above the portion of the cereal that the vertical conveyance device 34 holds. The auxiliary transport device 35 is disposed on the rear upper side of the vertical transport device 34. The front end portion of the auxiliary transport device 35 is positioned near the end portion in the transport path of the vertical transport device 34, and the rear end portion is positioned rearward and upper than the front end portion.

  The tip conveying device 33 conveys the tips of the cereals conveyed by the lower conveying devices 32L, 32R, and 32C. The tip transfer device 33 is positioned above the lower transfer devices 32L, 32R, and 32C and in front of the vertical transfer device 34. The left-handed tip transport device 33L transports the tip of the left side of the cereals. The central tip transport device 33C transports the tip of the cereal cocoon for the middle two strands, and the right tip transport device 33R transports the tip of the cereal cocoon for the two right strips.

  The upper transport device 36 transports the tips of six cereals that are transported by the lower right transport device 32R, the vertical transport device 34, and the auxiliary transport device 35. The upper transport device 36 is arranged behind the tip transport device 33. The front end portion of the upper transfer device 36 is located in the middle of the transfer path of the right tip transfer device 33R, and the rear end portion is located behind the front end portion.

Next, a configuration for transmitting power output from the engine 64 will be described with reference to FIG.
FIG. 5 is a block diagram illustrating a mechanism for transmitting the power of the engine 64.

  The power of the engine 64 is input to the transmission 66 via the belt b1. The transmission 66 transmits power to the crawler traveling device 10. The transmission 66 includes a hydraulic-mechanical continuously variable transmission 20. The continuously variable transmission 20 converts the motive power into hydraulic pressure and then converts it into rotational power again to drive the crawler traveling device 10.

  Power is input to the counter case 67 via the belts b2 and b3. Further, the rotational power of the continuously variable transmission 20 is input to the counter case 67 via the belts b4 and b5. The counter case 67 combines the rotational power of the engine 64 and the continuously variable transmission 20 by using a planetary gear mechanism, and drives the feed chain 50. Further, the counter case 67 transmits the rotational power of the continuously variable transmission 20 to the cutting unit 3.

  A transmission shaft 69 of the counter case 67 is connected to the cutting input shaft 37 via a transmission mechanism. Further, another transmission shaft 65 of the counter case 67 is connected to an output shaft 66a of the transmission 66 via a transmission mechanism. The power is transmitted to each device of the cutting unit 3 via the transmission 66 and the counter case 67 or only via the counter case 67 without passing through the transmission 66.

  The counter case 67 can synchronize the conveyance speed by the feed chain 50, the cutting speed by the cutting unit 3, and the conveying speed by the conveying device 30 with the traveling speed of the combine 1. That is, the speed at which the vertical conveying device 34 conveys the cereal (in other words, the speed at which the chain of the vertical conveying device 34 moves or the rotational speed of the drive sprocket 4a of the vertical conveying device 34) is equal to the traveling speed of the combine 1. Synchronize. Further, the speed at which the inheritance transport mechanism 70 transports the cereal is synchronized with the traveling speed of the combine 1. Furthermore, the speed at which the vertical conveyance device 34 conveys the cereal and the speed at which the inheritance conveyance mechanism 70 conveys the cereal are substantially the same.

  The transmission mechanism housed in the counter case 67 is connected to the output shaft of the engine 64 via the input shaft 59 of the counter case 67 to transmit power. The input shaft 59 of the counter case 67 is further connected to the drive shaft of the handling cylinder 60 of the threshing unit 4, and power is transmitted to the handling cylinder 60. The drive shaft of the barrel 60 is connected to the input shaft of the waste transporting device 62 of the waste processing unit 7, and the power is transmitted to the waste transporting device 62.

  A transmission shaft 68 of the counter case 67 is connected to each device of the sorting unit 5 through a transmission mechanism, and power is transmitted to each device of the sorting unit 5. The transmission shaft 68 is connected to the input shaft of the waste cutting device 63 of the waste processing unit 7, and power is transmitted to the waste cutting device 63.

  The power is 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 feed chain 50 is wound around the drive sprocket 52. The drive sprocket 52 is fixed to the feed chain shaft 51 of the counter case 67. The drive sprocket 52 is disposed on the left front part of the threshing unit 4.

  Power is transmitted to the cutting unit 3 through a power transmission mechanism including a cutting input shaft 37 and a longitudinal transmission shaft 38. The rear end of the vertical transmission shaft 38 is connected to the cutting input shaft 37 via a bevel gear. The front end of the vertical transmission shaft 38 is connected to an intermediate portion of the horizontal transmission shaft 39 via a bevel gear. The pulling device 12, the cutting device 13, and the conveying device 30 are driven by receiving power through a power transmission mechanism including a cutting input shaft 37, a vertical transmission shaft 38, and the like.

  Each pipe or the like constituting the mowing frame 14 accommodates a shaft that transmits power to the configuration having the driving function of the mowing portion 3 (see FIG. 3). A cutting input shaft 37 is accommodated in the cutting input case 96. A vertical transmission shaft 38 is accommodated in the vertical transmission case 97.

  A part of the power extracted from the middle part of the vertical transmission shaft 38 is transmitted to the lower right transport device 32R. The lower right transport device 32R and the right scraping mechanism 31a are driven by the transmitted power. Further, the power transmitted to the right tip conveying device 33R and the vertical conveying device 34 is taken out from the middle portion of the vertical transmission shaft 38.

  A drive shaft 49 of the vertical conveying device 34 is connected to the vertical transmission shaft 38 via a bevel gear. A drive sprocket 4 a is fixed to the drive shaft 49. A chain is wound between the drive sprocket 4a and a driven sprocket (not shown). The drive sprocket 4a is rotated by the power transmitted to the drive shaft 49, and the chain further rotates. Further, the vertical conveying device 34 is configured to be rotatable around the drive shaft 49. The axis of the drive shaft 49 substantially coincides with the rotation center P1 (see FIG. 3) for the rotation of the vertical conveying device 34.

  The power extracted from the left end of the lateral transmission shaft 39 is transmitted to the left lower transfer device 32L. Then, the left lower transfer device 32L and the left scraping mechanism 31a are driven. Further, the power transmitted to the left tip transfer device 33L is taken out from the left end of the lateral transmission shaft 39. The power extracted from the middle part of the lateral transmission shaft 39 is transmitted to the central lower transfer device 32C. And while the center lower conveyance apparatus 32C and the center scraping mechanism 31a drive, the center tip conveyance apparatus 33C drives.

  The pulling vertical transmission shaft 24 is connected to the left end of the horizontal transmission shaft 39 via a bevel gear. A pulling horizontal transmission shaft 25 is connected to the upper end of the pulling vertical transmission shaft 24 via a bevel gear. A plurality of pulling drive shafts 26 are connected to the pulling lateral transmission shaft 25 via bevel gears. A pulling tine drive shaft 27 is connected to each pulling drive shaft 26 via a bevel gear.

  A drive sprocket 28 used for driving the pulling tines S1, S2, S3, S4, S5, and S6 is fixed to the lower end portion of each pulling tine drive shaft 27. Each drive sprocket 28 is supported by winding the upper part of each tine chain 12b. Elevating tines S1,..., S6 are attached to the tine chain 12b.

  Power is transmitted from the horizontal transmission shaft 39 to the drive sprocket 28 of the pulling device 12 via the pulling vertical transmission shaft 24, the pulling horizontal transmission shaft 25, the pulling drive shaft 26 and the pulling tine drive shaft 27. A pulling speed change mechanism 29 is incorporated in the middle of the pulling vertical transmission shaft 24. The drive speeds of the pulling tines S1,..., S6 of the pulling device 12 are switched by the pulling speed change mechanism 29.

  Further, the power extracted from the lateral transmission shaft 39 is transmitted to the cutting device 13. Power is also transmitted to the discharge device 16. The output shaft of the engine 64 is connected to the input shaft of the discharge device 16.

  The power extracted from the cutting input shaft 37 is transmitted to the upper transfer device 36, the auxiliary transfer device 35, and the inheritance transfer mechanism 70. An upper conveyance drive shaft 47 is connected to the cutting input shaft 37 via a bevel gear. The upper transport drive shaft 47 transmits power to the upper transport device 36. Further, power is transmitted from the upper conveyance drive shaft 47 to the auxiliary conveyance device 35.

  A succession conveyance drive shaft 48 is coaxially connected to the upper conveyance drive shaft 47. The transfer transfer shaft 48 transmits power to the transfer transfer mechanism 70 via the upper transfer drive shaft 47. The power is transmitted from the inheritance conveyance drive shaft 48 to the drive sprocket 73.

Next, the configuration around the conveyance start end 50a of the feed chain 50 will be described with reference to FIGS.
FIG. 6 is an enlarged side view of the conveyance start end 50 a of the feed chain 50.

  The feed chain 50 is supported by the frame 58. The frame 58 is disposed on the left side of the handling cylinder 60. The longitudinal direction of the frame 58 is substantially in the front-rear direction. The frame 58 is supported by the body of the combine 1 including the body frame 9.

  A first driven sprocket 53 is rotatably supported at the rear portion of the frame 58. As shown in FIG. 6, a second driven sprocket 55 is rotatably supported on the front portion of the frame 58 via a rotating shaft 57.

  A support arm 58a is fixed to the frame 58 via a bracket 58b. The support arm 58a is provided so as to protrude downward. The support arm 58 a is disposed behind the second driven sprocket 55 and closer to the second driven sprocket 55 than the first driven sprocket 53. The driving sprocket 52 and the base end of the tension arm 56 are rotatably supported at the distal end of the support arm 58a.

  A drive sprocket 52 is fixed to the end of the feed chain shaft 51 so as not to be relatively rotatable. The feed chain shaft 51 faces in the left-right direction. 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 56. The tension arm 56 receives the spring force of the tension spring 56 a and rotates upward with the proximal end side of the tension arm 56 as a fulcrum, thereby applying tension to the feed chain 50. The tension spring 56 a is connected to a position (not shown) in the frame 58 and the tension arm 56.

  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 receiving tension from the tension roller 54. The feed chain 50 is driven by the rotation of the drive sprocket 52.

Next, the transfer mechanism 70 will be described with reference to FIGS.
FIG. 7 is an enlarged plan view of the periphery of the conveyance terminal portion of the vertical conveyance device 34.
FIG. 8 is an enlarged side view of the periphery of the conveyance terminal portion of the vertical conveyance device 34.

  The inheritance transport mechanism 70 inherits the cereal cake from the vertical transport device 34. Furthermore, the inheritance transport mechanism 70 transports the cereal toward the feed chain 50. The transfer mechanism 70 is disposed between the conveyance end portion of the vertical conveyance device 34 and the conveyance start end portion 50 a of the feed chain 50. The transfer start end portion 70 a of the transfer transfer mechanism 70 is positioned in front of the transfer start end portion 50 a of the feed chain 50.

  The cereal after harvesting is conveyed backward by the transfer mechanism 70. The chain of the transfer mechanism 70 faces in the front-rear direction and the left-right direction, and rotates along a substantially horizontal direction. Due to the later-described rotation of the transfer mechanism 70, the transfer path of the transfer mechanism 50 and the transfer path of the feed chain 50 intersect in the plan view of the combine 1.

  The transfer mechanism 70 is disposed behind the vertical transfer device 34. In addition, the transfer mechanism 70 is disposed to the right of the conveyance start end portion 50 a of the foot chain 50 and is disposed below the auxiliary conveyance device 35. The transfer start end portion 70 a of the transfer transfer mechanism 70 is located on the lower left side of the transfer end portion 35 b of the auxiliary transfer device 35. The conveyance start end portion 35 a of the auxiliary conveyance device 35 is located on the upper right side of the vertical conveyance device 34 and is located on the right front side of the conveyance start end portion 50 a of the feed chain 50.

  The transfer mechanism 70 includes a chain 71, a drive sprocket 73, a driven sprocket 75, and a driven pulley 78. The chain 71 is wound around the drive sprocket 73, the driven sprocket 75, and the driven pulley 78, and is driven by the rotation of the drive sprocket 73. The drive sprocket 73 is located on the rear end side of the transfer mechanism 70. The driven sprocket 75 is located on the front end side of the transfer mechanism 70. The driven pulley 78 is located on the left side of the drive sprocket 73.

  The drive sprocket 73 is attached to the drive shaft 72 so as not to be relatively rotatable. The drive shaft 72 is connected to the inherited transport drive shaft 48 (see FIG. 5).

  The position of the transfer mechanism 70 with respect to the vertical transfer device 34 moves according to the position of the vertical transfer device 34. At this time, the transfer mechanism 70 rotates around a drive shaft 72 as a predetermined rotation shaft. The axis of the drive shaft 72 substantially coincides with the rotation center P2. The rotation center P2 is located closer to the feed chain 50 (that is, the rear side) than the conveyance start end portion 70a that is an end portion on the vertical conveyance device 34 side, and is inclined rightward from the vertical direction. .

  The position of the vertical conveying device 34 shown in FIGS. 7 and 8 is a position on the innermost side of the vehicle width which is a deep handling position. Further, the position of the transfer mechanism 70 shown in FIGS. 7 and 8 is a position corresponding to the vertical transport device 34 in the deep handling position. Regardless of the handling depth position, the conveyance end portion 34 b of the vertical conveyance device 34 is positioned in front of the conveyance start end portion 50 a of the feed chain 50. The conveyance start end portion 34a of the vertical conveyance device 34 is located in front of the conveyance end portion 34b and inward of the vehicle width.

  Regardless of the handling depth position of the vertical conveyance device 34, the conveyance termination portion 70 b of the transfer conveyance mechanism 70 is positioned behind the conveyance termination portion 34 b of the vertical conveyance mechanism 34 and ahead of the conveyance start end portion 50 a of the feed chain 50. To do. The transfer start end portion 70a, which is the end portion on the vertical transfer device 34 side in the transfer and transfer mechanism 70, is a position where the cereal stock can be accurately transferred regardless of the handling depth position of the vertical transfer device 34. Thus, it is located on the vehicle width inner side and above the conveyance end portion 34 b of the vertical conveyance mechanism 34.

  As shown in FIG. 7, compared to the distance L1 in a plan view between the conveyance terminal end 34 b of the vertical conveyance device 34 and the conveyance start end 50 a of the feed chain 50, the conveyance terminal end 70 b of the transfer mechanism 70 and the feed chain The distance L2 in plan view between the 50 conveyance start end portions 50a is small. As described above, the position of the transfer terminal portion 70b of the transfer mechanism 70 is closer to the feed chain 50 than the transfer terminal portion 34b of the vertical transfer device 34, whereby the vertical transfer device is connected via the transfer mechanism 70. The cereals are accurately delivered from 34 to the feed chain 50.

Next, a configuration for rotating the transfer mechanism 70 will be described with reference to FIG.
FIG. 9 is a diagram illustrating a control system related to a configuration for rotating the transfer mechanism 70.

  The combine 1 includes a control device 91. The arrangement of the control device 91 is not particularly limited.

  The control device 91 includes a processing unit 92 and a storage unit 93. The processing unit 92 includes a microcomputer such as a CPU (Central Processing Unit).

  The storage unit 93 includes a memory such as a ROM (Random Access Read Only Memory) that cannot be rewritten, a volatile memory such as a RAM (Random Access Memory), a hard disk drive, and a flash memory. Information such as programs and maps is stored in the storage unit 93. The processing unit 92 can execute a program stored in the ROM after reading the program on the RAM.

  The combine 1 includes rotation angle sensors 41 and 42 and a saddle length sensor 43. The rotation angle sensor 41 detects the rotation angle of the vertical conveyance device 34 around the rotation center P1. The rotation angle sensor 42 detects the rotation angle of the transfer mechanism 70 around the rotation center P2. The culm length sensor 43 detects the length of the culm that is transported by the vertical transport device 34 of the transport device 30. Signals from these sensors are transmitted to the control device 91.

  As these sensors, sensors having a known configuration such as a potentiometer can be used. A limit switch type sensor is used for the saddle length sensor 43.

  In addition, the combine 1 is equipped with one or a plurality of cameras for photographing the conveyance path in the conveyance device 30, and the amount, length and thickness of the cereal, and the rotation angle of the vertical conveyance device 34 based on the photographed image. And combine 1 may be constituted so that position etc. can be recognized.

  The processing unit 92 recognizes the detected rotation angle of the vertical transfer device 34, the rotation angle of the inheritance transfer mechanism 70, and the length of the cereal. The processing unit 92 calculates the required rotation angle of the vertical conveyance device 34 based on the information and the information stored in the storage unit 93. Moreover, the process part 92 is requested | required based on the information of the length of the culm and the rotation angle of the vertical conveying apparatus 34 among these information, and the information stored in the memory | storage part 93, and the required transfer mechanism 70 The rotation angle is calculated. Or the process part 92 can derive | lead-out the rotation angle of the vertical conveying apparatus 34 requested | required by collating these information and the information stored in the memory | storage part 93. FIG. Further, the processing unit 92 can derive the required rotation angle of the transfer mechanism 70 by collating these pieces of information with the information stored in the storage unit 93.

  The rotation angle of the transfer mechanism 70 is calculated according to the position of the vertical transfer device 34. As the transfer mechanism 70 rotates at the calculated rotation angle, the position of the transfer mechanism 70 relative to the vertical transfer device 34 moves. Thus, the combine 1 is configured such that the position of the transfer mechanism 70 with respect to the vertical transport device 34 moves in accordance with the position of the vertical transport device 34.

  The control device 91 controls the motor 21 that rotates the vertical conveyance device 34 based on the calculation result, and controls the motor 22 that rotates the transfer conveyance mechanism 70. At this time, the control device 91 controls the operation amounts of the motors 21 and 22 so that the required rotation angle is obtained. The control device 91 operates the motor 21 to adjust the position of the conveyance end portion of the vertical conveyance device 34 along the left-right direction, and operates the motor 22 to adjust the position of the conveyance start end portion 70a of the inheritance conveyance mechanism 70. Adjust along the horizontal direction.

  The drive shaft of the motor 21 that rotates the vertical conveyance device 34 is connected to the frame of the vertical conveyance device 34. This frame rotatably supports the rotating shaft to which the driven sprocket is attached at the rear portion of the vertical conveying device 34. By the rotation of the motor 21, the vertical conveyance device 34 rotates in the left-right direction and the up-down direction about the rotation center P1. The left direction here is the vehicle width outside direction of the combine 1, and the right direction is the vehicle width inside direction of the combine 1.

  On the other hand, the drive shaft of the motor 22 is connected to a support plate (not shown) of the transfer mechanism 70. The support plate rotatably supports the rotating shaft to which the driven sprocket 75 is attached and the rotating shaft to which the driven pulley 78 is attached. The rotation of the motor 22 causes the transfer mechanism 70 to rotate left and right (in other words, the vehicle width outward side or the vehicle width inside side of the combine 1) around the rotation center P2.

Next, the action of rotation of the transfer mechanism 70 will be described with reference to FIGS.
FIG. 10 is an enlarged plan view of the periphery of the conveyance terminal portion of the vertical conveyance device, showing the rotation of the vertical conveyance device and the rotation of the succession conveyance mechanism.
FIG. 11 is an enlarged side view of the periphery of the conveyance terminal portion of the vertical conveyance device showing the rotation of the vertical conveyance device and the rotation of the transfer conveyance mechanism.

  10 and 11, the position of the vertical conveyance device 34 at the innermost side of the vehicle width as a deep handling position is indicated by a virtual line, and the position of the vertical conveyance device 34 at the outermost side of the vehicle width as a shallow handling position is indicated. Shown with virtual lines. When the position of the vertical conveyance device 34 is adjusted from the deep handling position to the shallow handling position, the distance in a plan view between the conveyance end portion 34b of the vertical conveyance device 34 and the conveyance start end portion 50a of the feed chain 50 Increases from the distance L1 (see FIG. 7) to the distance L3. In this case, if the inheritance transport mechanism 70 stays in the same posture, the inheritance transport mechanism 70 cannot accurately inherit the cereal and there is a risk of spilling the cereal.

  On the other hand, the combine 1 rotates in a direction in which the conveyance start end portion 70a of the transfer mechanism 70 moves away from the center of the machine body about the rotation center P2 when the vertical conveyance device 34 moves in a direction away from the center of the machine body. In addition, when the vertical transport device 34 moves in a direction approaching the center of the machine body, the transport start end portion 70a rotates around the rotation center P2 in a direction approaching the center of the machine body. Thereby, the transfer conveyance mechanism 70 can move so as to correspond to the position of the vertical conveyance device 34.

  In other words, even when the position of the transport terminal end 34b of the vertical transport device 34 changes, the change in the position of the transport start end portion 70a of the transfer transport mechanism 70 relative to the transport terminal end 34b of the vertical transport device 34 can be suppressed. Thus, when the conveyance terminal part 34b of the vertical conveying apparatus 34 moves, the conveyance start end part 70a of the inheritance conveyance mechanism 70 moves to the position which can succeed to the stock holder of cereal. Therefore, even when the distance between the feed chain 50 and the vertical conveyance device 34 increases, the inheritance conveyance mechanism 70 can accurately inherit the cereals from the vertical conveyance device 34.

  Further, since the transfer terminal portion 70b of the transfer mechanism 70 is located in the vicinity of the rotation center P2, even when the transfer device 70 moves, the change in the position of the transfer terminal portion 70b of the transfer device 70 is relatively small. Can be suppressed. That is, when the position of the vertical transport device 34 is adjusted, even when the transfer mechanism 70 moves in accordance with the position of the vertical transport device 34, the transport end portion of the transfer transport mechanism 70 with respect to the transport start end portion 50 a of the feed chain 50. The change of the position of 70b can be suppressed.

  That is, the distance in plan view between the transfer terminal end portion 70 b of the transfer mechanism 70 and the transfer start end portion 50 a of the feed chain 50 hardly changes before and after the transfer of the transfer mechanism 70. Therefore, even if the distance between the feed chain 50 and the vertical conveying device 34 is increased, the distance between the terminal position of the conveying device 30 of the cutting unit 3 and the feed chain 50 is the same as that of the conveying terminal unit 70b of the inherited conveying mechanism 70. This results in a distance L4 between the feed chain 50 and the conveyance start end 50a. Therefore, even when the distance between the feed chain 50 and the vertical conveyance device 34 increases, the transfer mechanism 70 can accurately deliver the cereals toward the feed chain 50.

  As described above, even when the distance between the feed chain 50 and the vertical conveyance device 34 increases from the distance L1 to the distance L3, the terminal position of the conveyance device 30 of the cutting unit 3 and the feed chain 50 are moved by the movement of the transfer conveyance mechanism 70. Is provided by a distance L4 between the transfer terminal end portion 70b of the transfer mechanism 70 and the transfer start end portion 50a of the feed chain 50. Therefore, even when the distance between the feed chain 50 and the vertical conveyance device 34 is increased, the conveyance device 30 of the cutting unit 3 can stably convey the cereal between the vertical conveyance device 34 and the feed chain 50.

Next, the control system implemented in the control apparatus 91 is demonstrated using a flowchart.
FIG. 12 is a flowchart of a control system related to a configuration for rotating the transfer mechanism 70.

  When the driving of the cutting unit 3 is started, first, in step S11, the length of the cereal is acquired as the state of the cereal to be conveyed. Next, in step S12, the rotation angle of the vertical conveying device 34 is calculated based on the length of the cereal. In step S13, the rotation angle of the transfer mechanism 70 is calculated.

  In step S14, the rotation of the vertical conveying device 34 is controlled based on the length of the cereal. Here, the order of step S13 and step S14 may be switched.

  Subsequently, in step S <b> 15, the rotation of the inheritance transport mechanism 70 is controlled based on the length of the cereal and the position of the vertical transport device 34. Thereby, the transfer conveyance mechanism 70 rotates at a rotation angle corresponding to the position of the vertical conveyance device 34. When the vertical conveyance device 34 moves in a direction away from the center of the machine body, the transfer conveyance mechanism 70 rotates around the rotation center P2 in a direction in which the conveyance start end portion 70a separates from the center of the machine body, and the vertical conveyance device When 34 moves in a direction approaching the center of the machine body, the conveyance start end portion 70a rotates around the rotation center P2 in a direction approaching the center of the machine body. Thereby, the conveyance start end portion of the transfer conveyance mechanism 70 with respect to the conveyance end portion 34b of the vertical conveyance device 34 is suppressed while the change in the position of the conveyance termination portion 70b of the transfer conveyance mechanism 70 with respect to the conveyance start end portion 50a of the feed chain 50 is suppressed. The position of 70a can be prevented from leaving.

1 Combine 30 Conveying Device 34 Vertical Conveying Device 48 Successive Conveyance Drive Shaft 50 Feed Chain 70 Successive Conveyance Mechanism 72 Drive Shaft (Rotary Shaft)
P2 center of rotation

Claims (3)

A vertical transfer device that delivers the cereal to a feed chain that holds the cereal base at the time of threshing;
In a combine equipped with a transfer mechanism that inherits cereal grains from the vertical transfer device,
The vertical conveying device is configured to be movable in order to adjust the handling depth,
The combine is characterized in that the position of the succession transport mechanism with respect to the vertical transport device moves according to the position of the vertical transport device.   When the vertical transport device moves in a direction away from the center of the machine body, the succession transport mechanism has an end portion on the vertical transport device side of the transport mechanism that is more feedable than an end portion on the vertical transport device side. The end on the vertical transport device side when the vertical transport device rotates in a direction away from the center of the machine body around a predetermined rotation axis located on the chain side and moves in a direction approaching the center of the machine body 2. The combine according to claim 1, wherein the unit is configured to rotate in a direction approaching the center of the airframe around the rotation axis. An upper conveying device that conveys the ear of the cereal, and
An upper transport drive shaft for transmitting power to the upper transport device;
A transfer conveying drive shaft that transmits power to the transfer conveying mechanism via the upper transfer driving shaft;
The combine according to claim 1 or 2, wherein the inheritance transport mechanism rotates around the inheritance transport drive shaft.

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