JP2009247287A - Combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine provided with a waste straw diffusing screw for diffusing waste straw (chopped straw) after cutting it with a cutter and having improved diffusion performance of especially the foot-side straw (chopped straw) having a heavy weight. <P>SOLUTION: A drop guide 103 for waste straw dropped after cutting with a cutter 12 is attached to the side of a screening part 8 of a waste straw diffusing screw 91 for diffusing waste straw (chopped straw) cut with the cutter 12, a plurality of diffusion guides 104 capable of guiding the waste straw (chopped straw) dropped from the waste straw diffusing screw 91 to the right and left sides of the machine body are attached to the drop guide 103, and these diffusion guides 104 are protruded from the lower end of the drop guide 103 and placed close to the air duct C of a dust discharging fan 9. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a combine provided with a waste diffusion spiral for diffusing waste after being cut by the cutter device (chopped waste) below a cutter device that cuts waste at the rear of the traveling machine body. .

Conventionally, a waste diffusion spiral for diffusing waste after being cut by the cutter device (chopped waste) is provided below the cutter device for cutting the waste at the rear of the traveling machine body, and the waste diffusion A spiral is installed in a state where left and right spiral blades that are oppositely twisted to each other are attached to the rotation shaft and driven horizontally, and a waste (chopped waste) is sent to the lateral side of the aircraft by the left and right spiral blades, On the other hand, one guide plate that guides the waste falling from the waste diffusion spiral (shredded waste) to the left and right is placed under each of the left and right spiral blades, and the left and right inclination angles of the guide plate are changed. A combine that can be operated freely is known (see, for example, Patent Document 1).
JP 7-123853 A (page 2-3, FIG. 2 to FIG. 4)

  However, as in Patent Document 1 described above, one sheet that can freely change the right and left inclination angle below the left spiral blade of the waste diffusion spiral corresponding to the stock removal side shredding position by the cutter device. It is difficult to evenly disperse waste (chopped waste) simply by providing a guide plate, and the diffusion performance of shattered waste on the stockholder side, which is particularly heavy, is not sufficient. It was.

The present invention aims to solve the above-mentioned problems, and a threshing unit for threshing the culm harvested by the pretreatment unit behind the pretreatment unit for harvesting and conveying the cereal And a dust collecting fan that vertically arranges a sorting unit for sorting the grains threshed by the threshing unit, and sucks and discharges foreign matter generated in the sorting unit above the rear of the sorting unit. And a cutter device for cutting the waste conveyed from the threshing unit via the waste conveying device at the rear of the dust exhaust fan, and further, the cutter device was cut by the cutter device below the cutter device. In a combine provided with a waste diffusion spiral for diffusing the subsequent waste, a drop guide for dropping the waste after being cut by a cutter device is provided on the sorting portion side of the waste diffusion spiral, and the drop guide Left and right sides of the fuselage dropping from the diffusion diffusion spiral to the guide With mounting a plurality of spreading guides may guide, as the first feature in that these diffusion guide and to face the exhaust air path of the dust-exhaust fan is protruded from the lower end of the drop guides are in.
The dust exhaust fan is a cross-flow fan, and a second feature is that a plurality of diffusion guides are attached within the width of the cross-flow fan.

According to the first aspect of the present invention, the waste that drops after being cut by the cutter device is placed on the sorting portion side of the waste diffusion spiral that diffuses the waste (cut shredded waste) that has been cut by the cutter device. Provided with a drop guide for the kite, and attached to the drop guide guide a plurality of diffusion guides capable of guiding the waste falling from the waste diffusion spiral (shredded waste) in the left-right direction of the fuselage. By letting it protrude from the lower end of the drop guide guide and face the exhaust passage of the dust exhaust fan, the exhaust that falls from the exhaust diffusion spiral (shredded exhaust) is used by using the exhaust air of the dust exhaust fan. Can be transported side by side along multiple diffusion guides. That is, it is possible to improve the diffusion performance of the heavy stocker side waste (chopped waste) by the synergistic effect of the plurality of diffusion guides and the exhaust air of the dust exhaust fan.
According to the second aspect of the present invention, the dust exhaust fan is a cross flow fan, and a plurality of diffusion guides are attached within the lateral width of the cross flow fan, so that the exhaust air from the dust exhaust fan can be efficiently exhausted. This makes it possible to further diffuse the waste (chopped waste).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of the combine, FIG. 2 is a schematic side view around the threshing portion mounted on the combine, FIG. 3 is a rear view of the combine with a part omitted, and FIG. 4 is a transmission diagram of the combine. The combine has a traveling machine body 2 supported by a pair of left and right crawler traveling devices 1L and 1R which are traveling parts, and an engine 3 is mounted on the right side of the front part of the traveling machine body 2, and this engine Above 3, a driver's seat 5 that constitutes a combine control section 4 is arranged.

  On the other hand, on the left side of the front part of the traveling machine body 2, a pre-processing unit 6 that cuts and conveys the cereal is laid up and down freely, and behind the pre-processing unit 6 threshing threshs the harvested culm. The part 7 and the sorting part 8 for sorting the grains threshed by the threshing part 7 are arranged up and down, and the foreign matter generated in the sorting part 8 is sucked above the rear part of the sorting part 8 A dust exhaust fan 9 that is a cross-flow fan that discharges outside the machine and a cutter device 12 that cuts the waste that is conveyed from the threshing unit 7 via the waste conveying device 11 are connected to the front and rear. .

  Further, behind the driver's seat 5, there is provided a grain tank 13 for temporarily storing the grains selected by the selection unit 8, and the grains temporarily stored in the grain tank 13 are Further, it can be discharged out of the machine from a discharge port (not shown) of the grain discharge auger 15 that can freely move up and down through the vertical conveying pipe 14.

  Then, on the front side of the boarding step 16 that forms the floor surface in front of the driver's seat 5, a control tower 18 provided with a multi-steering lever 17 for steering the traveling machine body 2 and raising / lowering the preprocessing unit 6 is erected. ing. The multi-steering lever 17 protrudes from the right side of the top panel 19 that covers the upper part of the control tower 18, and a meter panel 21 for displaying various information necessary for the cutting operation (operation) is provided on the left side of the top panel 19. Decorated. The left side panel 22 on the left side of the driver's seat 5 is provided with a plurality of operation tools necessary for the operation of the combine such as the main transmission lever 23 and the auxiliary transmission lever 24.

  The threshing unit 7 described above includes a handling chamber 26 equipped with a handling cylinder 25 for threshing the cereals harvested by the preprocessing unit 6, and the grains threshed in the handling chamber 26 are disposed below the handling chamber 26. A sorting unit 8 for sorting is provided. A threshing feed chain 27 is provided on the left side of the handling chamber 26. The threshing feed chain 27 conveys the stock of the harvested cereal between the culm and the squeeze rail (not shown).

  The sorting unit 8 is located below the handling chamber 26, and the sorting unit 8 and the handling chamber 26 are separated by a receiving net 28 that leaks the handling items. The sorting unit 8 includes a tang fan 31, a swing sorter 32, a first spiral 33, a second spiral 34, a blower fan 35, and the like.

  More specifically, the tang fan 31 is provided on the front side of the sorting section 8, and the tang fan 31 is driven to rotate, so that the sorting wind is generated. The oscillating sorter 32 is oscillated back and forth, and oscillates and sorts the grains and impurities that have leaked from the receiving net 28. The first helix 33 moves the first thing sorted by the swinging sorter 32 laterally in a first thing container (not shown). It is taken over by a lifting spiral (not shown) and conveyed into the grain tank 13. The second spiral 34 transports a second thing including branch infarct grains, ear cut grains, etc., which was not accommodated as the first thing, in a lateral direction in a second thing accommodating portion (not shown). Then, the blower fan 35 blows the sub-selection air from below toward the swinging sorter 32 side between the first item storage unit and the second item storage unit.

  Next, transmission structures such as the threshing unit 7, the sorting unit 8, the dust exhaust fan 9, and the cutter device 12 will be described. The power of the engine 3 is input to the input shaft 39 of the mission case 38, and is input to a hydrostatic continuously variable transmission (pre-processing HST) 41 disposed on the left side surface 38 a of the mission case 38 via the input shaft 39. Entered.

  The power output from the hydrostatic continuously variable transmission 41 is output to the preprocessing unit 6 and the threshing feed chain 27 via the transmission mechanism 38b in the transmission case 38. That is, the power input to the hydrostatic continuously variable transmission 41 can be arbitrarily shifted by the hydrostatic continuously variable transmission 41, and is also shifted within the transmission case 38 so that a pre-processing unit (not shown). Output to the drive shaft and threshing feed chain drive shaft 42.

  The input shaft 39 of the mission case 38 described above receives the power of the engine 3 from the right side surface 38c side of the mission case 38, and at the shaft end of the input shaft 39 protruding from the left side surface 38a of the mission case 38, An output pulley 43 that outputs power to the threshing unit 7 is attached.

  The tang fan 31 is pivotally supported by a tang shaft 44, and this tang shaft 44 is rotatably supported by a machine frame (not shown) of the threshing unit 7. Power is transmitted to the input pulley 45 attached to the rotary shaft 44 via a belt 46 wound around the output pulley 43 of the mission case 38, and the rotary fan 31 is rotationally driven by this power.

  The second spiral 34 is provided in a second accommodating portion disposed behind the tang fan 31. The second spiral 34 has a spiral plate 34 a attached around a second spiral shaft 47 and is rotatably supported by a machine frame (not shown) of the threshing unit 7.

  The second helical shaft 47 protruding from the left side of the machine frame (not shown) of the threshing unit 7 is provided with a pulley 48, and between this pulley 48 and the sorting output pulley 49 attached to the tang shaft 44. Power is transmitted through the wound belt 51, and the second spiral 34 is rotationally driven by this power.

  In addition, the first spiral 33 is provided in the first housing part disposed behind the Kara fan 31 and in front of the second housing part. A spiral plate 33 a is attached to the first spiral 33 around the first spiral shaft 52, and is supported rotatably on a machine frame (not shown) of the threshing unit 7.

  And the pulley 53 is provided in the 1st spiral shaft 52 which protrudes from the left side surface side of the machine frame which is not illustrated of the threshing part 7, Between this pulley 53 and the pulley 54 attached to the 2nd spiral shaft 47. Power is transmitted through the wound belt 55, and the first helix 33 is rotationally driven by this power.

  The blower fan 35 is supported by a fan shaft 56, and the fan shaft 56 is rotatably supported by a machine frame (not shown) of the threshing unit 7 between the first spiral 33 and the second spiral 34. ing. The fan shaft 56 is provided with a pulley 57 slidably contacting the belt 55 wound between the pulley 53 of the first helical shaft 52 and the pulley 54 of the second helical shaft 47, and the pulley 57 is attached to the fan shaft 56. The blower fan 35 is rotationally driven by the power input through it. The belt 55 is provided with a tension pulley (not shown) that maintains the tension.

  Further, the swing sorter 32 is supported on a machine frame (not shown) of the threshing unit 7 so as to be swingable back and forth. A drive crank mechanism (not shown) for swinging and driving the swing sorting body 32 is provided on the left side surface of the machine frame, and swinging of the swing sorting body 32 that is a base end portion of the drive crank mechanism. The drive shaft 61 is disposed on the rear upper part of the second helical shaft 47.

  The tip end of a link arm (not shown) constituting the drive crank mechanism described above is eccentric from the rotational axis of the pulley 53 provided on the first helical shaft 52, that is, eccentric to the first helical shaft 52 of the pulley 53. The drive crank mechanism is driven through the link arm by the rotational drive of the pulley 53, thereby enabling the swing sorter 32 to be driven to swing back and forth.

  The dust exhaust fan 9 is disposed at the rear upper part of the machine frame (not shown) of the threshing unit 7, that is, above the rear part of the sorting unit 8, and the dust exhaust fan 9 is driven on the left side of the machine frame. A pulley 64 is attached to a drive shaft 63 for this purpose. The pulley 64 is disposed at an upper rear portion of the second helical shaft 47 and at a position above the swing drive shaft 61 of the swing sorter 32. Power is transmitted from the pulley 65 attached to the shaft end side of the second spiral shaft 47 to the pulley 64 described above via the belt 66, and the dust exhaust fan 9 is rotationally driven by this power.

The cutter device 12 is connected to the rear of the dust exhaust fan 9 behind the threshing unit 7 and above the rear part of the sorting unit 8. The drive pulley 67 of the cutter device 12 is located on the left side of the machine frame (not shown) of the threshing unit 7, and the drive pulley 67 is behind the pulley 64 attached to the drive shaft 63 that drives the dust exhaust fan 9. And the power is transmitted from a pulley 68 attached to the shaft end of the second helical shaft 47 via a belt 69, and the cutter device 12 is driven by this power.
The drive shaft 71 is rotationally driven.

  Further, a threshing output pulley 72 is attached to the shaft shaft 44 on the opposite side to the input pulley 45, and the above-mentioned handling cylinder is driven by power transmitted from the threshing output pulley 72 via the belt 73. 25 and a processing cylinder 74 provided on the rear side of the handling cylinder 25 are configured to rotate. Note that the waste transporting device 11 that transports the waste to the cutter device 12 is driven via the handling shaft 75 that supports the handling drum 25.

  As described above, the dust exhaust fan 9 and the cutter device 12 are driven through the belts 66 and 69, which are dedicated transmission means, using the second helical shaft 47 as a common drive source. Similarly, the first helix 33 and the blower fan 35 are also driven via a common belt 55 having a second helix shaft 47 as a drive source. Further, the swing sorter 32 is driven to swing back and forth through a pulley 53 of a first spiral 33 (first spiral shaft 52) having a second spiral shaft 47 as a drive source.

  A gear 87 provided at the shaft end of the drive shaft 63 to drive the dust exhaust fan 9 and a gear 89 provided at the shaft end of the rotary shaft 88 of the dust exhaust fan 9 meshing with the gear 87 are not shown. The gear case is mounted (screwed) on a support member on one side of the left and right sides that rotatably supports the rotary shaft 88 of the dust exhaust fan 9 as well as the gear case.

  Further, a waste diffusion spiral 91 provided below the cutter device 12 is provided on the drive shaft 71 of the cutter device 12 in order to diffuse the waste (chopped waste) that falls after being cut by the cutter device 12. Power is transmitted through a belt 96 wound between the output pulley 92 and the pulley 95 attached to the rotary shaft 94 of the waste diffusion spiral 91.

  In the cutter device 12 described above, a plurality of cutting blades 97a are disposed on a drive shaft (cutting shaft) 71 at predetermined intervals, and a large-diameter gear 99 that meshes with a small-diameter gear 98 provided on the drive shaft 71 is interposed. A plurality of scraping teeth 97b are also arranged at a predetermined interval on a driven shaft (scratching shaft) 101 that rotates, and the cutting blade 97a that rotates at a high speed and the scraping teeth 97b that rotate at a low speed are used for the removal. Cutting processing is performed. As shown in FIGS. 1 and 3, the cutter device 12 is pivotably opened around the longitudinal axis Y on the left and right end sides, and the cutter device 12 is moved backward about the longitudinal axis Y. If it opens largely, the large working space at the time of maintaining the above-mentioned cutting blade 97a and the pick-up tooth 97b can be ensured.

  As shown in FIGS. 2 to 4, left and right counter-twisted spiral blades 94 a and 94 b are attached to the rotation shaft 94 of the rejection diffusion spiral 91, and are discharged by the spiral blades 94 a and 94 b. Spear (shredded waste) can be released in the lateral direction of the aircraft. More specifically, since the waste that falls after being cut by the cutter device 12 (chopped waste) is more bulky on the tip side than on the stock side, the central portion of the waste diffusion spiral 91 The diameter of the right spiral blade 94b in the rear view is made larger than the diameter of the left spiral blade 94a so that the shredded waste on the tip side can be efficiently conveyed laterally.

  Further, as shown in FIGS. 2 and 3, the cutter device 12 performs a cutting process on the lower side of the end portion of the upper casing 102 covering the upper side of the dust exhaust fan 9, in other words, on the side of the sorting portion 8 of the waste diffusion spiral 91. A drop guide 103 is provided to guide the fallen waste that falls after the fall with a downward slope, and the lower end E of the fall guide guide 103 falls from the left spiral blade 94a in the rear view constituting the waste diffusion spiral 91. A plurality of diffusion guides 104,.

  These diffusion guides 104,... Are attached within the lateral width (left-right width) of the dust exhaust fan 9 which is a transverse flow fan, as shown in FIG. More specifically, as shown in FIG. 5, the diffusion guide 104 uses the round hole H <b> 1 and the long hole H <b> 2 provided at the lower end E of the drop guide guide 103, with the drop guide guide 103 being sandwiched between the front and back sides. The upper diffusion guide 104a and the lower diffusion guide 104b are integrally screwed. The diffusion guides 104a and 104b on both the upper and lower sides are inclined at right and left within the range allowed by the long hole H2 with the round hole H1 as a fulcrum. (Guide angle) can be changed, and the tip side thereof faces the wind exhaust path C (see FIG. 2) of the dust exhaust fan 9 in a state of protruding from the lower end E of the drop guide guide 103. In this embodiment, the diffusion guide 104 includes an upper diffusion guide 104 a and a lower diffusion guide 104 b that are screwed together on the drop guide guide 103, but only the upper diffusion guide 104 a is screwed to the drop guide guide 103. It may be the configuration.

As described above, after the cutting device 12 performs the cutting process, it falls to the sorting unit 8 side of the waste diffusion spiral 91 that diffuses the waste (cut shredded waste) that has been cut by the cutter device 12. A dropping guide 103 for evacuation is provided, and a plurality of diffusion guides 104,... That can guide the dropping (chopped evacuation) falling from the evacuation diffusion spiral 81 in the left-right direction of the machine body. At the same time, the diffusion guides 104,... Protrude from the lower end of the drop guide guide 103 and face the exhaust passage C of the dust exhaust fan 9, so The shredded waste can be transported side by side along the plurality of diffusion guides 104,. That is, it is possible to improve the diffusion performance of the heavy stocker side waste (chopped waste) by the synergistic effect of the plurality of diffusion guides 104,. .
The dust exhaust fan 9 described above is a cross-flow fan, and a plurality of diffusion guides 104,... Are installed within the width of the cross-flow fan so that the exhaust air from the dust exhaust fan 9 is efficiently used. However, it is possible to further diffuse the waste (chopped waste).

  Note that reference numerals 106L and 106R shown in FIG. 3 are skirts as sway guides provided on both the left and right sides of the swaying diffusion spiral 91, and the degree of opening of both skirts 106L and 106R is changed. By this, it is possible to adjust the diffusion range of the exclusion (chopped waste) to a desired range.

The top view of a combine. The schematic side view around a threshing part. The rear view of the combine which omitted a part. Combined transmission diagram. The perspective view which shows the attachment state of a diffusion guide.

Explanation of symbols

6 Pre-processing unit 7 Threshing unit 8 Sorting unit 9 Dust exhausting fan 11 Exhaust conveying device 12 Cutter device 91 Exhausting diffusion spiral 103 Drop guide 103 104 Diffusion guide

Claims (2)

  The threshing part (7) for threshing the cereals harvested by the pretreatment part (6) and the threshing part (7) are threshed behind the pretreatment part (6) for harvesting and conveying the cereal. And a sorting unit (8) for sorting the cereal grains, and a waste that is generated by suctioning and discharging foreign matter generated in the sorting unit (8) above the rear of the sorting unit (8). A cutter device (12) is provided that provides a dust fan (9) and cuts the waste discharged from the threshing section (7) through the waste transport device (11) behind the dust exhaust fan (9). In addition, in the combine provided with a waste diffusion spiral (91) for diffusing waste after being cut by the cutter device (12) below the cutter device (12), the waste diffusion spiral (91 ) On the side of the sorting section (8) of the waste drop guide (1) after being cut by the cutter device (12). 3), and a plurality of diffusion guides (104,...) Capable of guiding the waste falling from the waste diffusion spiral (91) in the left-right direction of the airframe are attached to the drop guide guide (103) A combine characterized in that guides (104,...) Are projected from the lower end of the drop guide guide (103) so as to face the air exhaust passage (C) of the dust exhaust fan (9).   The combine according to claim 1, wherein the dust exhaust fan (9) is a cross-flow fan, and a plurality of diffusion guides (104, ...) are mounted within a width of the cross-flow fan.

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