JP2013039092A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reversing mechanism capable of smoothly performing work even with sticking of mud, catching of cut straw, etc., in the case where a reverse driving shaft reversed by hand is located close to the field when reversing a grain culm conveyor of a pretreatment section.SOLUTION: One end of a driving shaft in a horizontal cylinder 10 which is the turning center of the pretreatment section is arranged projecting outward from the horizontal cylinder 10, and the reverse driving of the driving shaft is attained by this projecting part P.

Description

  The present invention relates to a combine for threshing while harvesting corn straw, and more particularly, to a pre-processing unit that harvests and conveys corn straw.

  Generally, a combine has a pre-processing part supported so that raising / lowering is possible centering on a horizontal cylinder in the front side of an airframe. The pre-processing unit is configured by a cutting blade, a pulling device, and various varieties of culm transporting devices. Drive in reverse to eliminate clogging. Conventionally, in the combine, the power transmitted from the traveling machine body side via the drive shaft arranged in the horizontal cylinder is transmitted to the horizontal axis located behind the cutting blade via the vertical transmission shaft, There is known one in which a lever serving as a reverse drive means is attached to the horizontal axis (see Patent Document 1).

JP 2008-35738 A

  However, the thing of the said patent document 1 has a reverse drive means in the low position close to a farm field, and in the harvesting operation of the combine grain husk, there is a sticking of mud adhesion, an unharvested grain husk, a cutting hook etc., and reverse rotation They had to be cleaned when driving, which was inconvenient.

  Therefore, an object of the present invention is to provide a combine that solves the above-described problems by disposing the reverse drive means at the end portion of the horizontal cylinder positioned above.

The present invention includes a traveling machine body (2), a pre-processing unit (3) disposed so as to be movable up and down around a horizontal cylinder (10) disposed in front of the traveling machine body (2), and the pre-processing unit ( 3) and a culm transporting device for transporting the harvested culm by transmitting power from the traveling machine body via the drive shaft (S1) disposed in the horizontal cylinder (10). 17) and a feed chain (16) for conveying the cereals conveyed by the cereal conveying device (17) to the threshing device (5) arranged in the traveling machine body (2) (1) ), (1 ₂ ), (1 ₃ )
One end of the drive shaft (S1) protrudes outward from the horizontal cylinder (10), and the protrusion (P ₁ ) of the drive shaft (S1) protrudes outward from the horizontal cylinder (10). P _2), and configured so as to drive the drive shaft (S1) in the opposite direction by _{(P 3),}
It is characterized by that.

For example, referring to FIG. 7, the projecting portion (P ₂ ) of the drive shaft (S1) is disposed so as to pass through the track of the feed chain (16),
The cover (69) covering the outer side surface of the feed chain (16) is removed, and the protrusion (P ₂ ) of the drive shaft (S1) is driven in the reverse direction.

For example, referring to FIG. 8 and FIG. 9, a cover (69) covering the outer side surface of the feed chain (16) is provided,
The protrusion (P ₃ ) of the drive shaft (S1) penetrates the cover (69) and protrudes outward.

For example, referring to FIG. 5, a cereal guide plate (41) for guiding cereals is provided above the protrusion (P ₁ ) of the drive shaft (S1), and the front part of the cereal guide plate (41). And an elastically deformable cover (42) that covers the front through the projection (P ₁ ) of the drive shaft (S1).

  According to the first aspect of the present invention, one end of the drive shaft in the horizontal cylinder is arranged so as to protrude outward from the horizontal cylinder, and the drive shaft can be driven in the opposite direction. The protruding part has a certain distance above the ground or cutting blade, and there is no risk of mud adhesion, uncut sledges, slashes, etc., and smooth rotation of the reverse drive with standard tools (spanner, ratchet wrench, etc.) It can be carried out.

  According to the second aspect of the present invention, since the protruding portion of the drive shaft in the horizontal cylinder is disposed through the raceway of the feed chain, the cover covering the outer side surface of the feed chain is removed and exposed. By fitting a ratchet wrench or the like into the protruding portion, the cereal conveying device can be easily driven in reverse.

  According to the third aspect of the present invention, since the protruding portion of the drive shaft in the horizontal cylinder passes through the cover that covers the outer side surface of the feed chain and protrudes outward, it is easy from the side of the combine directly. In addition, the grain feeder can be driven in reverse.

  According to the fourth aspect of the present invention, the front and rear of the projecting portion of the drive shaft in the horizontal cylinder are covered with the elastically deformable cover. It is possible to prevent cereal grains or swarf or the like that are spilled from wrapping around the protrusion, and to easily access the protrusion by turning the cover.

The side view which shows the combine which concerns on 1st Embodiment which can apply this invention. The plan view. The side view which shows the pre-processing part which concerns on 1st Embodiment. The perspective view which shows the reverse drive shaft (protrusion part) for performing the reverse drive of the grain straw conveying apparatus which concerns on 1st Embodiment, and its cover. The left side view. The transmission expanded view of the pre-processing part which concerns on 1st Embodiment. The left view which shows the reverse drive shaft (projection part) which concerns on 2nd Embodiment. The perspective view which shows the reverse drive shaft (protrusion part) which concerns on 3rd Embodiment. The enlarged perspective view. The left view which shows having provided the reverse drive part which performs the reverse drive of a pre-processing part separately from the horizontal cylinder instead of being coaxial. FIG. 4 is a transmission development view showing that the pretreatment unit is driven in reverse by the driving force transmitted from the drive shaft of the feed chain.

  Hereinafter, a first embodiment according to the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the combine 1 has a traveling machine body 2 supported by a crawler, and a pre-processing unit 3 that cuts and conveys cereals is disposed in front of the traveling machine body 2. Has been. The traveling machine body 2 has a threshing unit 5 for threshing the grain from the harvested cereal on one side (left side), and a driving operation unit 6 and an engine on the other side (right side). A grain tank 7 for temporarily storing the threshed grain and a discharge auger 9 for discharging the grain in the grain tank 7 to the outside are disposed.

  As shown in FIG. 3, the preprocessing unit 3 is supported by the traveling machine body 2 so as to be movable up and down around a horizontal cylinder 10 that transmits power from the engine to the preprocessing unit 3. A divider 11 for weeding the cereals provided in the front part of the unit 3, a pulling device 12 for raising the cereals that have been weeded behind the divider 11, and a reciprocating cutting blade 13 for cutting the cereals; , The stock source scoring device 15 that stirs the stock side of the raised cereal and the cereal that has been harvested by the cutting blade 13 to the rear and delivered to the feed chain 16 of the threshing unit 5 And a bag transport device 17. Further, side covers 19 that can be easily attached and detached for maintenance and maintenance are disposed on both side surfaces of the pretreatment unit 3.

  The horizontal cylinder 10 that transmits the power from the engine to the preprocessing unit 3 is extended in the left-right width direction of the fuselage, and the vertical transmission cylinder 20 extends diagonally forward and downward from the horizontal cylinder 10. The lower end of the vertical transmission cylinder 20 is connected to a lower transmission cylinder 21 extending to the left and right over substantially the entire width of the pretreatment section 3, and the lower transmission cylinder 21 has brackets 22 at both ends thereof. A preprocessing frame 23 extending so as to surround the front of the preprocessing unit is attached. A plurality of dividers 11... That divide the rice husks in the field for each cutting line are fixed at a predetermined interval in the width direction at the front portion of the pretreatment frame 23. 13, the cutting blade 13 cuts the stock of the culm raised by the pulling device 12, and cuts the cereal.

  From the vicinity of the left end of the lower transmission cylinder 21, the intermediate transmission cylinder 25 extends obliquely upward and forward, and the upper end of the intermediate transmission cylinder 25 is raised by the pulling device 12 according to the state of the cereals in the field. It is connected to an upper transmission cylinder 27 extending in the traveling machine body width direction via a pulling transmission 26 that changes the speed. A plurality of pulling transmission cylinders 29 project forward from the upper transmission cylinder 27, and the pulling device 12 for raising the cereals is arranged in front of the pulling transmission cylinder 29. The pulling device 12 includes a chain with a claw (not shown) and a pulling case 12a, and the hook of the chain with the claw rotates upward in the pulling case 12a to cause the cereal.

  The cereal grains that have been raised by the pulling device 12 are picked up and focused by the stock-source scraping device 15 backward. The stock rake device 15 includes a rake belt 30 that rakes the stock of the cereal that has been raised by the pulling device 12, and a star wheel 31 that focuses the cereal that has been raked by the rake belt 30. These scrambling belts 30 and star wheels 31 are provided in a number corresponding to the number of cutting lines (six in this embodiment). The star wheel 31 (31A, 31a, 31C, 31c, 31b, 31B from the left side of the machine body) has a substantially star shape made of resin, and the star wheel 31 and the scraping belt 30 are provided on the same axis and are synchronized. And is configured to rotate.

  The above-mentioned grain straw transporting device 17 includes left and right and center main stock former transport bodies 32A, 32B, and 32C that transport the stock source side of the grain straw that has been post-transferred from the star wheel 31, and the left and right and center that transport the tip side. Tip transport bodies 33A, 33B, 33C, rear stock transport body 35 for transporting the stock side of the cereals that have been transported and joined by them, and deep handling for adjusting the handling depth of the cereals And a body 36. The left main stock former transport body 32A and the left head tip transport body 33A are the right main stock base transport body 32B and the right head stock transport body 33B, and the middle main rice cake The central main stock transporter 32C and the central tip transporter 33C each transport the rear, and while the handling depth transporter 36 changes the pinching position of the culm, these cereals are transferred to the right tip transporter 33B. And the rear stock transporter 35 is received and delivered to the feed chain 16.

As shown in FIGS. 4 and 5, the horizontal cylinder 10 is pivoted to a mount portion 40 disposed at the upper end of a lift frame 39 that is fixed to the body frame 37 of the traveling body 2 and extends upward. Supported as possible. Drive shaft S1 of the horizontal cylinder 10 (see FIG. 6), together with the left end is projected to the left outside of the lateral tube 10, the tip portion of the protruding portion P ₁ projecting from the side cylinder 10 to the hexagonal cross section It is formed so that a tool such as a ratchet wrench can be fitted and driven in reverse (in the reverse direction) manually. Projecting the upper vicinity of the exit portion P _1, grain稈案the plate 41 for guiding the culms are Koso by the feed chain 16 is provided on the front portion of該穀稈案the plate 41, the projecting portion P _An elastically deformable cover 42 that passes through the top of ₁ and covers the front is supported. The front or above the projecting portion P _1, culms conveying side of the feed chain 16 (the front or upper side), the right tip carrier 33B, the rear lines based on carrier 35 are located, they culms The cereal meal or swarf or the like spilled when transporting is prevented from being wrapped around the protruding portion P ₁ by the cereal meal guide plate 41 and the cover 42. Furthermore, a plate-shaped tip guide plate 43 that guides the tip of the grain pod to be transported and a threshing entrance rubber plate 45 extending to the front portion of the threshing portion 5 are disposed above the right tip tip transport body 33B. ing.

  Next, the power transmission of the combine 1 which concerns on this Embodiment is demonstrated. In the combine 1, the engine E is mounted on the traveling machine body 2, and the power of the engine E is transmitted to the transport HST 47 via the threshing clutch 46 as illustrated in FIG. 6, and via the gear transmission 49. It is transmitted to the feed chain 16 and input to the input pulley 50a. The power input to the input pulley 50a is transmitted from the output pulley 50c to the drive shaft S1 in the horizontal cylinder 10 via the cutting clutch 51, which is a tension clutch disposed on the belt 50b, and from the drive shaft S1. It is transmitted to the drive shaft S2 in the vertical transmission cylinder 20. The power from the drive shaft S2 is transmitted to the drive shaft S3 in the lower transmission cylinder 21, and in the pulling transmission cylinder 29 via the drive shafts S4 and S5 in the intermediate transmission cylinder 25 and the upper transmission cylinder 27. It is transmitted to the drive shaft S6.

  A plurality of sub-transmission shafts are branched from the middle portion of the drive shaft S2 in the vertical transmission cylinder 20, and a plurality of drive sprockets 52, 53, 55, 56, provided on these sub-transmission shafts. 57 and 59 drive the right tip carrier 33B, the rear stock transporter 35, the right main stock transport 32B, the handling depth transport 36, the central main stock transport 32C, and the central tip transport 33C. ing. The power of the drive shaft S7 of the right tip carrier 33B is driven by the one-way clutch 60 provided between the drive shaft S7 and the drive sprocket 52 of the right tip carrier 33B. It is transmitted to the sprocket 52. When the drive shaft S7 is driven in reverse, the power is cut off in the one-way clutch 60 and the drive sprocket 52 does not rotate. The one-way clutch 60 is also provided on the drive shafts of the left tip carrier 33A and the central tip carrier 33C, and is broken even if the hooks of the chain with the hooks of the tip carriers 33A, 33B, 33C are driven in reverse. It is configured not to.

  Further, the power from the drive shaft S3 in the lower transmission cylinder 21 is transmitted to the cutting blade 13 attached to the pretreatment frame 23, and to the sub transmission shaft S8 branched from the drive shaft S4 in the intermediate transmission cylinder 25. Is provided with drive sprockets 61 and 62, and transmits power to the left main stock transporter 32A and the left tip transporter 33A. A plurality of transmission gears are provided in the pulling transmission 26 provided in the intermediate transmission cylinder 25, and the power shifted by the meshing of these is transmitted to the drive shaft S5 in the upper transmission cylinder 27. The pulling transmission device 26 may be set so that power is not transmitted to the pulling device 12 without meshing the transmission gear. The power transmitted from the drive shaft S5 to the drive shaft S6 in the upper transmission cylinder 27 passes through the drive shaft S6 in a plurality of (four in the present embodiment) pull-up transmission cylinder 29, and the pulling device. 12 drive sprockets 63.

  The driven sprockets 65 and 66 of the left main stock transport body 32A and the right main stock transport body 32B described above are fixed to the mounting shafts S9 and S10 of the star wheels 31A and 31B provided at the left and right ends of the machine body, respectively. Then, the driving side star wheels 31A and 31B are rotated by transmitting power to the mounting shafts S9 and S10. The rotation of the star wheel 31A is first transmitted to the driven star wheel 31a attached to the attachment shaft S11 and then to the central star wheel 31C attached to the attachment shaft S12 by being engaged with each other, and is transmitted to the attachment shaft S12. Is a loosely fitted driven sprocket 67 of the central main stock transporter 32C. Further, the rotation of the star wheel 31C is transmitted to the star wheel 31c attached to the attachment shaft S13, which is paired with the center star wheel 31C. On the other hand, the rotation of the star wheel 31B at the right end is transmitted to the driven star wheel 31b attached to the attachment shaft S14. The power of the mounting shafts S9, S10, S11, S12, S13, and S14 drives the drive belts 30 provided on the same axis of the respective drive shafts.

  Next, the operation of the combine 1 according to this embodiment will be described. An operator travels the combine 1 and threshs and harvests while harvesting grain straws in the field and proceeds with the harvesting operation. When the combine 1 travels in the field, the cereals are weeded by the divider 11 of the pretreatment unit 3 and the cereals that have been weeded by the pulling device 12 are raised and stand upright. The raised culms are picked up by the pick-up belt 30 and focused by the star wheel 31, and are cut by the cutting blade 13 in the process.

  The harvested cereals are transported backward by the stock transporters 32A, 32B, and 32C arranged at the left and right and the center of the preprocessing unit 3, and backward by the stock transporters 33A, 33B, and 33C. The cereals conveyed rearward are automatically adjusted to an appropriate handling depth by the handling depth conveying body 36, and then transferred to the feed chain 16 by the right tip conveying body 33B and the rear stock transporting body 35. And carried to the threshing unit 5.

When clogging occurs in the transport of the cereals in the cereal transporting device 17, power is transmitted from the drive shafts S5 and S6 and the input pulley 50a to the engine side by the cutting clutch 51 and the pulling transmission 26. Set to not. On top of that, the projecting portion P ₁ of the reverse rotation drive which projects outwardly from the horizontal cylinder 10, flipping the cover 42 for covering the protruding portion P ₁ upward and forward, is reversed manually by a ratchet wrench, the drive The shafts S1, S2, S3, and S4 and the auxiliary drive shaft connected to these shafts are driven in reverse so that the clogged soot is loosened and removed easily.

Further, a cover 42 for covering the protruding portion P _1, come grain稈又of spill during transport of the culms of culms transfer device 17 is straw dust, etc. is prevented from winding around the projecting portion P ₁ . Protrusions P ₁ for the reverse drive, so protrudes to the left outwardly from the transverse tube 10, there is a certain distance above the ground or cutting blade, mud adhering, or non Setsu稈, Setsuwara etc. there in a position difficult wraps the projecting portion P _1, it is possible to perform smoothly the reverse drive operations by a ratchet wrench. Moreover, it can reversely drive with a standard tool (spanner, ratchet wrench, etc.), confirming a conveyance state from the left side which the said grain candy conveying apparatus 17 can visually recognize.

  Next, the second embodiment will be described with reference to FIG. 7. This embodiment is different from the first embodiment only in the protrusion amount of the reverse drive protrusion protruding from the left end of the horizontal cylinder 10. Therefore, the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

Outward side of the combine 1 ₂ feed chain 16 which can be applied to this embodiment, the feed chain cover 69 is mounted detachably, the projecting portion P ₂ that protrudes to the left outside of the lateral tube 10 The feed chain 16 passes through the track and extends to the feed chain cover 69. Tip of the projecting portion P ₂ is made hexagonal cross section, it has a configuration that can reverse driven manually by a ratchet wrench.

This embodiment, since having the above-described structure, when the straw jam occurs in the transport of culms, remove the feed chain cover 69, a ratchet wrench or the like to the projecting portion P ₂ exposed By fitting, it can be driven in reverse. In the reverse drive operation, it is not necessary to turn over the cover 42 covering the upper and front sides of the horizontal cylinder 10 as in the first embodiment, and the cereal conveyance device 17 is easily driven in reverse. Can do.

Next, the third embodiment will be described with reference to FIGS. 8 and 9. In the present embodiment, the same reference numerals are used in the drawings for portions that overlap with the first or second embodiment. A description thereof will be omitted. Protrusion P ₃ which protrudes to the left outside of the lateral tube 10 Combine 1 ₃ that can be applied to this embodiment, the trajectory of the feed chain 16, and further through the feed chain cover 69, the feed chain cover 69 Protrudes to the left of. The distal end of the projecting portion P ₃ which projects to the left side of the feed chain cover 69 is adapted to the cross-sectional hexagonal shape, and a structure can be driven reversed by a ratchet wrench. The distal end of the projecting portion P ₃ is covered by a protective cap 70, preventing contact between the winding and the operator or the like of Warakuzu is achieved.

This embodiment, since having the above-described structure, when the straw jam occurs in the transport of culms, remove the protective cap 70, fitted with a ratchet wrench or the like to the projecting portion P ₃ exposed Drive in reverse. The reverse drive operation does not require removal of the feed chain cover 69 as in the second embodiment, and the reverse drive operation can be performed directly and simply from the left side of the feed chain 16 simply by removing the protective cap 70. It can be performed.

In addition, the reverse drive part 71 which performs a reverse drive manually is provided not on the drive shaft S1 axis | shaft in the horizontal cylinder 10 as mentioned above but in the left side of the said lift flame | frame 39 as shown in FIG. A pulley 72 having a rotation radius larger than the rotation radius of the reverse rotation drive unit 71 is attached to the projecting portion P ₁ (or P ₂ or P ₃ ), and power is transmitted between the reverse rotation drive unit 71 and the pulley 72 by a belt or a chain. The reverse rotation driving force may be transmitted to the drive shaft S1 by the handle 73 provided in the reverse rotation drive unit 71. As a result, the driving force of the reverse drive unit 71 is decelerated and transmitted to the drive shaft S1, so that the operation force of the reverse drive is small and fine movement is possible. Further, a clutch mechanism is provided in the reverse drive unit 71 so that power is not transmitted to the reverse drive unit during forward rotation. Even when the handle 73 provided in the reverse drive unit 71 is attached, the handle rotates during forward rotation. There is no need to attach or detach the handle.

Further, as shown in FIG. 11, the transmission shaft S17 that has been shifted from the drive shaft S16 of the feed chain 16 and the protrusion P ₁ (or P ₂ or P ₃ ) of the drive shaft S1 are tensioned by a belt or chain. The driving force is transmitted via the clutch 75, the threshing clutch 46 is turned on, the mowing clutch 51 is turned off, and the power from the engine E is supplied from the feed chain 16 side to the drive shaft S16, the transmission shaft S17, and the protruding portion. P _1, via the drive shaft S1, by transmitting the pre-processing unit 3, the reverse drive force to each unit of the drive shaft S2 following the preprocessing unit 3 may be caused to transmit.

1, 1 ₂ , 1 ₃ Combine 2 Traveling machine body 3 Pre-processing unit 10 Horizontal cylinder 16 Feed chain 17 Grain meal transport device 41 Grain meal guide plate 42 Cover 69 Cover (feed chain cover)
P ₁ , P ₂ , P ₃ protrusion S1 Drive shaft

Claims (4)

Via a traveling machine body, a pre-processing section disposed so as to be movable up and down around a horizontal cylinder disposed in front of the traveling machine body, and a drive shaft disposed in the pre-processing section and disposed in the horizontal cylinder. The power from the traveling machine body is transmitted, and the corn straw transporting apparatus that transports the harvested corn straw, and the corn straw transported by the grain straw conveying apparatus is transported to the threshing device arranged in the traveling machine body. In a combine with a feed chain,
One end of the drive shaft is disposed so as to protrude outward from the horizontal cylinder, and the drive shaft is configured to be driven in the reverse direction by a protruding portion of the drive shaft protruding outward from the horizontal cylinder.
Combine that is characterized by that. A projecting portion of the drive shaft is disposed through the orbit of the feed chain;
The cover that covers the outer side surface of the feed chain is removed, and the protruding portion of the drive shaft is driven in the reverse direction.
The combine according to claim 1. A cover for covering an outer side surface of the feed chain;
The protruding portion of the drive shaft protrudes outward through the cover.
The combine according to claim 1. Provided with a culm guide plate for guiding the culm above the projecting part of the drive shaft, elastically deformable to be supported by the front part of the culm guide plate and covering the front through the projecting part of the drive shaft With a cover of
The combine according to any one of claims 1 to 3.

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