JP2015181447A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine in which the number of connection components of a machine body frame and a second mower device is reduced to reduce the number of times of maintenance inspection work, and deformation of the machine body frame is prevented.SOLUTION: A plurality of lifting frames (95, 96, 97) which support a second mower device (90) so as to vertically lift up and down is attached in a machine body frame (2) with predetermined spaces in right and left directions. A cylindrical first shaft (117)is fixed to a rear part of the lifting frame (95) on a thresher (4) side, from among the lifting frames (95, 96, 97). An attaching frame (110) which rotatably supports the first shaft (117) is attached to a front part of a left-front frame (15) of the machine body frame (2) positioned on the thresher (4) side. A rotation shaft (25) of a conversion device (25B) for driving the second mower device (90) is extended in the right and left directions and rotatably supported in an inner peripheral surface of the first shaft (117).

Description

  The present invention relates to a combine equipped with a secondmore device.

  In the conventional combine, in order to cut the residue of the grain harvested by the cutting blade device of the pre-harvest processing device short and facilitate the tilling work in the subsequent process, it is linked with the lifting and lowering of the pre-harvest processing device. A second-more device that moves up and down is provided.

JP 2010-51217 A

However, the conventional combine has a problem that the number of connecting parts between the combiner body frame and the second mower device is large, and the frequency of maintenance and inspection work is high. Further, there is a possibility that the machine body frame that supports the base portion of the connecting frame disposed in the vicinity of the driving means that drives the cutting blade device of the second more device is deformed by the weight of the second more device.
Therefore, the main problem of the present invention is to reduce the number of connecting parts between the combiner body frame and the second mower device to reduce maintenance and inspection work, and to support the base part of the connecting frame disposed in the vicinity of the driving means. It is to prevent the deformation of.

The present invention that has solved the above problems is as follows.
The invention according to claim 1 is planted in a body frame (2) on which a control unit (8) on which a driver is boarded on one side and a threshing device (4) for threshing cereals harvested on the other side are mounted. A pre-cutting processing device (5) provided with a cutting blade device (50) for cutting the standing cereal rice cake, and a second more device (90) for cutting the residue after cutting at a position rearward of the cutting blade device (50). In a combine with
A plurality of elevating frames (95, 96, 97) that support the second mower device (90) so as to be movable up and down are attached to the body frame (2) at predetermined intervals in the left-right direction, and the elevating frame (95 , 96, 97), a cylindrical first shaft (117) is fixed to a rear portion of the lifting frame (95) on the threshing device (4) side, and the first shaft (117) is rotatably supported. A conversion device (25B) for attaching the attachment frame (110) to the front portion of the left front frame (15) of the machine frame (2) located on the threshing device (4) side and driving the secondmore device (90) The rotary shaft (25) extends in the left-right direction and is supported rotatably on the inner peripheral surface of the first shaft (117).

  The invention according to claim 2 is characterized in that the mounting frame (110) is attached to the front portion of the left front frame (15) and extends in the front-rear direction, and the first mounting frame ( 111) and a front mounting frame (112) for connecting a front intermediate frame (2B) extending in the left-right direction of the airframe frame (2), a front portion of the first mounting frame (111), and the The combine according to claim 1, formed by a third attachment frame (113) connecting the front wall (4A) of the threshing device (4).

  According to a third aspect of the present invention, the second mounting frame (112) is extended in the left-right direction from the front portion of the first mounting frame (111) toward the control unit (8), and the third mounting frame ( 113. The combine according to claim 2, wherein 113) extends upward from the front portion of the first mounting frame (111) with respect to the second mounting frame (112).

  The invention according to claim 4 is configured such that the first mounting frame (111) is detachable from the left front frame (15), and the second mounting frame (112) is detachable from the front intermediate frame (2B). The combine according to claim 2 or 3, wherein the third mounting frame (113) is detachable from the front wall (4A).

  According to the first aspect of the present invention, the plurality of elevating frames (95, 96, 97) that support the second mower device (90) so as to be movable up and down in the vertical direction are separated from each other by a predetermined interval in the left-right direction. ) Of the lifting frame (95, 96, 97), a cylindrical first shaft (117) is fixed to the rear portion of the lifting frame (95) on the threshing device (4) side, and the first shaft (117) A mounting frame (110) that rotatably supports the frame is attached to the front portion of the left front frame (15) of the machine body frame (2) located on the threshing device (4) side, and the second mower device (90) is driven. Since the rotating shaft (25) of the device (25B) extends in the left-right direction and is rotatably supported on the inner peripheral surface of the first shaft (117), the fuselage frame (2) and the secondmore device (90) Reduce the number of connecting parts and connect parts It is possible to reduce the number of times of maintenance and inspection work. Further, a large space can be formed on the front side of the left front frame (15), and a hydraulic valve or the like can be arranged.

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the attachment frame (110) is attached to the front portion of the left front frame (15) and extends in the front-rear direction. A frame (111), a second mounting frame (112) for connecting a front portion of the first mounting frame (111) and a front intermediate frame (2B) extending in the left-right direction of the fuselage frame (2), and a first mounting Since it is formed by the third mounting frame (113) that connects the front part of the frame (111) and the front wall (4A) of the threshing device (4), the rigidity of the left front frame (15) is increased, and the secondmore device The deformation of the left front frame (15) can be prevented by its own weight (90).

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the second mounting frame (112) is moved from the front portion of the first mounting frame (111) toward the control section (8). Since it extends in the left-right direction and the third mounting frame (113) extends upward from the front portion of the first mounting frame (111) with respect to the second mounting frame (112), the left front The rigidity of the frame (15) can be increased, and the second mounting frame (112) and the third mounting frame (113) can be simplified in shape to reduce the manufacturing cost.

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 2 or 3, the first mounting frame (111) is configured to be detachable from the left front frame (15), and the second mounting frame ( 112) is configured to be detachable from the front intermediate frame (2B), and the third mounting frame (113) is configured to be detachable from the front wall (4A), so that the second mower device (90) can be easily attached and detached. Can be done.

It is a front view of a combine. It is a left view of a combine. It is a rear view of a combine. It is a principal part left view of a cutting pre-processing apparatus. It is a principal part top view of a cutting pretreatment apparatus. It is a front view of a take-in auger. It is a principal part left view of a 2nd more apparatus. It is a principal part cross-sectional left view of a 2nd more apparatus. It is a principal part top view of a 2nd more apparatus. It is a power transmission diagram. It is a front view explaining another lifting device. It is a left view explaining another lifting device. It is a top view explaining the hook part of other lifting devices. It is a front view explaining an attachment frame. It is a top view explaining an attachment frame. It is a left view explaining an attachment frame. It is a left view explaining the components with which the mounting frame was mounted | worn. It is a top view explaining the components with which the mounting frame was mounted | worn. (A) explaining a secondmore plate is a front view, (b) is a left side view. It is a left view of the feeder house of a cutting pretreatment apparatus. It is a top view of the feeder house of a cutting pretreatment apparatus. (A) of the elevator cover of a feeder house is a left view, (b) is a bottom view. It is a right view explaining other 3rd raising / lowering frames. It is a right view of another 2nd more apparatus. It is a front view explaining arrangement | positioning of a tension hook.

The general purpose combine according to the present invention will be described below with reference to the accompanying drawings.
As shown in FIGS. 1 to 3, the general-purpose combine 1 is provided with a traveling device 3 composed of a pair of left and right crawlers for traveling on the soil surface below the body frame 2, and threshing above the body frame 2. A threshing device 4 for performing sorting is provided, and a pre-cutting processing device 5 for harvesting cereal straw in the field is provided on the front side of the threshing device 4. The grain threshed and selected by the threshing device 4 is stored in a Glen tank 6 provided on the right side of the threshing device 4, and the stored grain is discharged to the outside by a discharge cylinder 7 composed of a whipping cylinder and a transverse feed cylinder. Is done. In addition, a control unit 8 on which a driver gets on the front side of the Glen tank 6 is provided.

<Cutting pretreatment device>
Next, the pre-cutting processing device 5 of the present invention will be described. In addition, although the direction is shown and demonstrated for convenience for easy understanding, the configuration is not limited by these.

  The cutting pretreatment device 5 includes a feeder house 20, an auger device 30, a cutting blade device 50, a scraping device 60, and a vertical cutting blade device 80, as shown in FIGS. FIG. 10 shows the power transmission structure.

(Feeder House)
The feeder house 20 is a device that conveys cereal grains such as rice, wheat, soybeans, and buckwheat conveyed by the auger device 30 to the threshing device 4, and is provided between the auger device 30 and the threshing device 4.

At the front portion of the feeder house 20 on the uncut side, a shaft 27 on which sprockets 27A and 27B that transmit the rotation of the engine E to the auger device 30 and the scraping device 60 are mounted, the cutting blade device 50, and the vertical A rotary shaft 28 on which a sprocket 28A for transmitting the rotation of the engine E and a conversion mechanism 28B are mounted to the cutting blade device 80 is pivotally supported at a predetermined interval in the vertical direction.
Further, at the rear part of the frame of the feeder house 20, the rotary shaft 25 on which the sprocket 25A for transmitting the rotation of the engine E to the second mower blade device 90 and the conversion mechanism 25B are mounted, the feeder house 20 and the like of the engine E A rotating shaft 26 to which a pulley 26A and sprockets 26C, 26D, 26E, and 26F that transmit rotation are mounted is pivotally supported at a predetermined interval in the vertical direction.

  A chain 12C is wound around the sprockets 26E, 27A, 28A, and the tension of the chain 12C is adjusted to a predetermined range by a tension arm (not shown) provided between the sprockets 26E, 27A. Similarly, a chain 12F is wound around the sprockets 25A and 26F, and the tension of the chain 12F is adjusted to a predetermined range by a tension arm 121 provided substantially in the sprockets 25A and 26F.

(Ogre device)
The auger device 30 is a device that gathers the cereals scraped by the scraping device 60 in front of the feeding port 32 and takes them over to the feeder house 20. The auger device 30 is disposed in front of the feeder house 20 and is a machine body of the general-purpose combine 1. It is formed to have substantially the same width as the entire width of.

The auger device 30 includes an auger frame 31, a scraping auger 33 that collects the scraped grains into the front of the feeding port 32, and the like. The auger frame 31 is formed in a bucket shape by a pair of left and right side plates, a rear plate that connects the rear surfaces of both side plates, and a bottom plate that connects a partial lower surface of both side plates and the lower surface of the rear plate. In addition, weed bodies 39, 39 for weeding the rice straw of the field are provided at the front end portions of the both side plates, and a feeding port 32 for conveying the rice straw to the feeder house 20 is formed on the left side of the rear plate. A cutting blade device 50 is provided at the front end of the bottom plate to cut the stock of the cereal.
The left and right side plates of the auger frame 31 are divided into front and rear, and are constituted by a rear side plate 31C forming a part of a bucket-like structure and a front side plate 31D provided with the weed body 39 in the front part. . At the front end portion of the front side plate 31D, a plane portion that intersects with the longitudinal direction of the aircraft is formed, and this plane portion and a plane portion that is formed at the rear end portion of the weed body 39 and intersects with the longitudinal direction of the aircraft body are formed. It is fastened by fastening means 31E such as bolts in the butted state.

  The upper surfaces of the two side plates are formed so as to be inclined rearwardly from the front side to the rear side in a side view, the lower surface is formed substantially horizontally from the front side to the middle, and projects from the middle to the rear side in an arc shape downward. Is formed. The rear plate is formed in a substantially rectangular shape in a front view, and the bottom plate is formed substantially horizontally from the front side to the middle along the lower surface of the side plate in a side view, and projects in an arc shape from the middle to the rear side downward. Is formed. The auger frame 31 can be formed integrally by welding both side plates and the rear plate made of steel, or by cutting and bending one piece of steel. Furthermore, the shape of the side plate or the like is not limited to the above-described shape, and can be formed in any shape according to the application.

  The take-in auger 33 is mounted on a shaft 34 that is rotatably supported on both side plates of the auger frame 31. On the outer periphery of the stirrer auger 33, a conveying spiral 35 that is slanted in a direction in which the cereals scraped by the stirrer 60 are gathered to the front of the feed port 32 is fixed. A plurality of scraping fingers 36 are formed and provided so as to be capable of appearing and retracting at a portion opposite to each other in order to prevent the scum from staying.

  In order to prevent the deformation of the conveyance spiral 35, reinforcing ribs 35A are provided on the conveyance upstream side surface (right side surface) of the conveyance spiral 35 with a predetermined interval. In addition, it is preferable to reduce the interval W between the adjacent ribs 35A and 35A toward the downstream side of the conveyance, and 2 in order to increase the rigidity of the conveyance spiral 35 and the rib 35A provided in the vicinity of the inlet 32. It is preferable to form the conveying spiral 35 and the rib 35 </ b> A by superimposing sheets of steel.

  The shaft 34 on which the auger 33 is mounted extends to the left side of the left side plate of the auger frame 31, and sprockets 34A and 34B are attached to the extending portion of the shaft 34 with a predetermined interval. A transmission chain 12D is wound around the sprocket 27B and the sprocket 34A provided at the front portion of the feeder house 20.

(Mowing blade device)
The cutting blade device 50 is a device that cuts stock sources such as cereals scraped by the scraping device 60, oil rape cut at the top by the vertical cutting blade device 80, cereals such as rapeseed, etc. It is provided at the front end portion of the bottom plate of the auger frame 31, and is gently raised rearward from the front side to the rear side in a side view.

  The cutting blade device 50 includes a fixed blade 52 composed of a finger-shaped lower blade 52A having a plurality of narrow blade widths and a long blade length for holding a stock such as cereals, and an angle steel member connected to the rear portion of the fixed blade 52. And the like, and a movable blade 51 composed of a triangular upper blade 51A having a plurality of wide blade widths and short blade lengths that slide in the left-right direction through a groove formed in the fixed blade 52. Yes. In plan view, the cutting edge of the lower blade 52A extends forward from the tip of the upper blade 51A, and the tip of the lower blade 52A is formed at an angle of about 30 degrees. On the other hand, the cutting edge of the upper blade 51 is formed at about 60 degrees, and the cutting edge of the upper blade 51 that holds a stock source such as cereal and the extended portion of the lower blade 52 has a sandwiching angle of about 30 degrees. The sandwiching angle is smaller than that of a normal clipper blade.

  The tip of the swing arm 54 is connected to the base of the movable blade 51, and the rear end of the swing arm 54 is such that the swing arm 54 is substantially orthogonal to the shaft 29 in a side view. The tip of the shaft 29 is connected.

  The rotation of the engine E is transmitted to the shaft 29 via the sprocket 28A, the conversion mechanism 28B, and the like. The rotation of the engine E transmitted to the input side of the conversion mechanism 28B is converted into reciprocating rotation by a declination shaft portion provided at a fixed angle at the base portion of the conversion mechanism 28B, and the shaft connected to the output side 29 is reciprocally swung around the axis of the shaft 29. As the shaft 29 reciprocally swings, the tip of the swing arm 54 swings back and forth in the left-right direction around the rear end of the swing arm 54, and the movable blade 51 is a groove formed by the fixed blade 52. Slide left and right. The cutting blade device 50 is not limited to the above-described embodiment, and separates the movable blade located on the left side and the movable blade located on the right side in order to reduce vibrations and the like generated by the movement of the movable blade 51. And the left movable blade and the right movable blade can be reciprocally slid in opposite directions.

(Scratching device)
The scraping device 60 is a device that scrapes into the auger device 30 a fallen cereal, a low cereal such as soybeans or buckwheat, and a high cereal such as oil rape or rape blossoms. They are formed with the same width and are provided on the upper side of the auger device 30.

The picking device 60 includes a picking reel 61 and an arm 63 that moves the picking reel 61 up and down.
The base part of the arm 63 is rotatably mounted on shafts 68 installed on both side plates of the auger frame 31, and the intermediate part is connected to a tip part of a lifting device such as a hydraulic cylinder that moves the arm 63 up and down. A shaft 62 on which the take-up reel 61 is rotatably mounted is installed at the distal end portion.
A pulley 68A is attached to the right end of the shaft 68, a sprocket 68B is attached to the left end, and a pulley 62A is attached to the right end of the shaft 62 on which the take-up reel 61 is mounted. The chain 12E is wound around the sprocket 34B and the sprocket 68B attached to the shaft 34 of the device 30, and the belt 11C is wound around the pulleys 62A and 68A.

  The take-up reel 61 is formed in a substantially pentagonal shape in a side view, and a tine support rod 65 is provided at each of the five corners, and the tine support rod 65 is laterally spaced by a predetermined interval. A plurality of reel tines 64 are suspended.

(Vertical cutting blade device)
The vertical cutting blade device 80 is a device that cuts the entangled cereal grains above the left side plate of the auger frame 31, and the upper end portion of the vertical cutting blade device 80 is provided in front of the shaft 62 of the take-up reel 61. The lower end portion is provided behind the weed body 39. Further, the vertical cutting blade device 80 is provided so as to be gently inclined downwardly from the upper end portion toward the lower end portion.

  The vertical cutting blade device 80 includes a fixed blade 82 composed of a finger-shaped left blade 82A having a narrow blade width and a long blade length for holding high-sized cereals such as oil rape and rape blossom, and a rear portion of the fixed blade 82. A triangular right blade 81A having a wide blade width and a short blade length that slides vertically in a slit formed in the vertical cutting blade plate 83 made of connected angle steel or the like and the left blade 82A of the fixed blade 82. It is comprised from the movable blade 81 which consists of. In side view, the cutting edge of the left blade 82A extends forward from the tip of the right blade 81A, and the tip of the left blade 82A is formed at an angle of about 30 degrees. On the other hand, the cutting edge of the right blade 81A is formed at about 60 degrees, and the cutting edge of the right blade 81A that holds the cereal and the like and the extending portion of the left blade 82A have a sandwiching angle of about 30 degrees. The sandwiching angle is small with respect to the clipper blade. In order to prevent clogging of the cereals below the left blade 82, the left blade 82A located at the lowermost end of the fixed blade 82 is placed on the upper surface 31B of the left side plate of the auger frame 31, as shown in FIG. It is preferable to arrange them in parallel and at the same height.

  The tip of the swing arm 84 is connected to the base of the movable blade 81, and the rear end of the swing arm 84 is such that the swing arm 84 is substantially orthogonal to the shaft 29 in a side view. The tip of the shaft 29 is connected.

  The rotation of the engine E is transmitted to the shaft 29 via the sprocket 28A, the conversion mechanism 28B, and the like. The rotation of the engine E transmitted to the input side of the conversion mechanism 28B is converted into reciprocating rotation by a declination shaft portion provided at a fixed angle at the base portion of the conversion mechanism 28B, and the shaft connected to the output side 29 is reciprocally swung around the axis of the shaft 29. As the shaft 29 reciprocally swings, the tip end of the swing arm 84 reciprocally swings up and down around the rear end of the swing arm 84, and the movable blade 81 is a groove formed by the fixed blade 82. Slide up and down.

  An upper end portion of the vertical cutting blade plate 83 of the vertical cutting blade device 80 is attached to a front end portion of a support frame 85 erected from the left surface of the left side plate of the auger frame 31 toward the upper front side by fastening means such as a bolt. The part is attached to the front side part of the left surface of the left side plate of the auger frame 31 by fastening means such as a bolt. Further, the base of the support frame 85 is fitted into the groove of the support 86 supported on the left surface of the left side plate of the auger frame 31, and a vertical cutting blade is used to prevent entanglement between the harvested cereal and uncut cereal. A cover 87 made of metal or plastic is provided between the plate 83 and the support frame 85.

(guide)
In order to prevent clogging of the culm in the gap formed between the auger frame 31 and the vertical cutting blade device 80 and to prevent the culm from accumulating on the front side of the swinging arms 54 and 84, FIGS. As shown in the figure, on the left side of the left weed body 39, there are a first guide 40 that slopes upward from the front of the weed body 39 and a second guide 41 that extends horizontally rearward from the middle part of the weed body 39. Is provided.

  In order to prevent clogging of the cereals below the fixed blade 82 of the vertical cutting blade device 80, the front end portion of the first guide 40 formed of pipe steel is the front portion of the left side surface of the weed body 39 in a side view. The intermediate portion intersects the upper surface 39A of the weed body 39 and tilts upward, and the rear end portion is fitted into the tip portion of the left blade 82A at the lowermost end of the fixed blade 82. Moreover, in order to prevent the uncut grain ridges from being entangled with the vertical cutting blade device 80, in a plan view, the first guide 40 extends from the front end portion toward the rear end portion so as to be inclined to the left side. Yes.

  The front end portion of the second guide 41 formed of a flat steel material in the side view in order to efficiently weed the uncut corn straw and the harvested corn straw with the weed body 39 until cut by the vertical cutting blade device 80, Fixed to the middle part of the left side surface of the weed body 39, the middle part extends rearward beyond the lower part of the vertical cutting blade device 80, and the rear end part is a cutting blade provided above the left side of the cutting blade device 50. It extends to the vicinity of the guard 42. In plan view, the second guide 41 extends from the front end portion toward the rear end portion so as to be inclined to the left side of the first guide 40.

<Secondmore device>
Below the pre-cutting processing device 5, as shown in FIGS. 7 to 9, in order to shorten the length of stumps (residues) such as cereals cut by the cutting blade device 50, a secondmore device 90 is provided.

The second more device 90 includes a fixed blade 92 composed of a finger-shaped lower blade 92A having a plurality of narrow blade widths and long blade lengths for holding a stock such as cereals cut by the cutting blade device 50, and a fixed blade 92. A second mower plate 93 such as an angle steel member connected to the rear portion, and a triangular upper blade 91A having a plurality of wide blade widths and a short blade length that slide in the left-right direction through a groove formed in the fixed blade 92. The movable blade 91 is configured.
In plan view, the cutting edge of the lower blade 92A extends forward from the tip of the upper blade 91A, and the tip of the lower blade 92A is formed at an angle of about 30 degrees. On the other hand, the cutting edge of the upper blade 91 is formed at about 60 degrees, and the cutting edge of the upper blade 91 and the extending portion of the lower blade 92 that hold the stock source such as cereals cut by the cutting blade device 50 The sandwiching angle is about 30 degrees, and the sandwiching angle is smaller than that of a normal clipper blade.
(Second mower mounting structure)
Above the rear side of the second more plate 93, a connecting frame 93A is provided in parallel with the second more plate 93, and the connecting frame 93A extends in three front-and-rear directions provided at a predetermined interval. The second connecting plate 93 is connected to the rear surface of the second more plate 93 by the existing connecting frame 93B.

  The tip of the swing arm 94 is connected to the base of the movable blade 91, and the rear end of the swing arm 94 is positioned so that the swing arm 94 is substantially orthogonal to the shaft 24 in a side view. The shaft 24 is connected to the tip portion.

  The rotation of the engine E is transmitted to the shaft 24 through the sprocket 25A, the conversion mechanism 25B, and the like. The rotation of the engine E transmitted to the input side of the conversion mechanism 25B is converted into reciprocating rotation by a declination shaft portion provided at a fixed angle at the base portion of the conversion mechanism 25B, and the shaft connected to the output side 24 is reciprocally swung around the axis of the shaft 24. As the shaft 24 reciprocally swings, the tip of the swing arm 94 swings back and forth in the left-right direction around the rear end of the swing arm 94, and the movable blade 91 is moved to the second more plate 93 and the fixed blade 92. The groove formed by is slid in the left-right direction.

As shown in FIG. 9, the second more device 90 includes a first lifting frame 95 disposed on the left side of the front end portion of the body frame 1, a second lifting frame 96 and a third lifting frame 97 disposed in the middle portion. It is supported.
The front end portion of the first elevating frame 95 is attached to the left surface of the left side portion of the connecting frame 93A by fixing means such as welding, and the rear end portion is the front end of the left frame 2L that extends in the front-rear direction forming the body frame 2 It is attached to a first shaft 98A that is rotatably mounted on a first bearing part 98 attached to the left side of the part.

  As shown in FIG. 7, the first elevating frame 95 extends downward in a straight line from the rear end portion toward the front end portion, and has a swing arm 94 at the front end at the lower portion of the left surface of the first elevating frame 95. A support portion 24B that supports the shaft 24 connected to each other so as to be reciprocally swingable is attached.

In order to reduce the weight of the fuselage frame 2 when the second mower device 90 is not attached, the left front frame 15 of the left frame 2L is connected to the left rear frame 16 by a fastening means such as a bolt so as to be detachable. Is preferred.
Further, in order to prevent the left front frame 15 from drooping when the second mower device 90 is mounted, it is preferable to connect the front side portion of the left front frame 15 and the front wall 4A of the threshing device 4 with the connection frame 17. In order to facilitate maintenance / inspection of the threshing device 4, it is more preferable to form the connecting frame 17 in a ladder shape so that the operator can move up and down to the upper part of the threshing device 4 using the connecting frame 17. is there.

As shown in FIG. 9, the front end portion of the second elevating frame 96 is attached to the rear surface of the substantially central portion in the left-right direction of the connection frame 93 </ b> A by fixing means such as welding, and the rear end portion forms the body frame 2. It is attached to a second shaft 99A that is rotatably mounted on a second bearing portion 99 that is attached to the front surface of the left end portion of the front frame 2A. Note that the second shaft 99A is connected to the third shaft by a connecting shaft 18 extending in the left-right direction in parallel with the front frame 2A in order to increase the rigidity of the front frame 2A to which the transmission 3A for increasing or decreasing the rotation of the traveling device 3 is attached. The rear end of the lifting frame 97 is connected to a third shaft 100A to which the lifting frame 97 is attached. The second shaft 99A, the third shaft 100A, and the connecting shaft 18 can be formed integrally.
The front frame 2A is installed on the front end of the left intermediate frame 2l disposed between the left frame 2L and the right frame 2R, extending in the front-rear direction, the front end of the right intermediate frame 2r, and the front side of the right frame 2R. Has been. In addition, the rear ends of the left frame 2L, the left intermediate frame 21, the right intermediate frame 2r, and the right frame 2R are connected to the rear frame 2D, and between the front frame 2A and the rear frame 2D. Is provided with a front intermediate frame 2B and a rear intermediate frame 2C.
The left intermediate frame 21 is disposed on the right side of the lifting cylinder 5A that lifts and lowers the cutting pretreatment device 5, and the second bearing 99 is provided on the front frame 2A to which the transmission 3A that increases or decreases the rotation of the traveling device 3 is attached. It is attached to the front side on the left side of the part. Further, the right intermediate frame 2r is disposed substantially at the center between the left intermediate frame 21 and the right frame 2R.

  In order to increase the rigidity of the second elevating frame 96 and the third elevating frame 97 and prevent the second elevating frame 96 and the third elevating frame 97 from being deformed, the middle of the second elevating frame 96 positioned in front of the transmission 3A. The intermediate part of the part and the third elevating frame 97 are connected by a connecting frame 19.

As shown in FIG. 8, the second elevating frame 96 has a second straight portion 96 </ b> A extending downward from the rear end portion in a straight line and a second straight portion so as to bypass the drive shaft 3 </ b> B of the traveling device 3. A second bending portion 96B that extends downward from the front end portion of 96A in front of the drive shaft 3B is curved to reduce vibration and noise during driving of the second mower device 90, and the length of the second lifting frame 96 9, as shown in FIG. 9, a straight line extends from the rear end portion to the front end portion between the lifting cylinder 5 </ b> A of the pre-cutting processing device 5 and the transmission 3 </ b> A of the traveling device 3.
Further, in order to increase the rigidity of the second elevating frame 96 and the third elevating frame 97 and to prevent the second elevating frame 96 and the third elevating frame 97 from being deformed, the second bending portion 96B positioned in front of the transmission 3A. The middle portion of the third curved portion 97 </ b> B is coupled by the coupling frame 19.

  As shown in FIG. 9, the front end portion of the third elevating frame 97 is attached to the rear surface of the substantially central portion in the left-right direction of the connecting frame 93 </ b> A by fixing means such as welding, and the rear end portion forms the body frame 2. It is attached to a third shaft 100A that is rotatably attached to a second bearing portion 100 that is attached to the front surface of the intermediate portion of the front frame 2A.

  As shown in FIG. 8, the third elevating frame 97 has a third linear portion 97 </ b> A that extends downward from the rear end portion in a straight line, and a third linear portion so as to bypass the drive shaft 3 </ b> B of the traveling device 3. In order to reduce the length of the third elevating frame 97, the third bending portion 97B includes a third bending portion 97B that extends downward from the front end portion of 97A in front of the drive shaft 3B. As shown in FIG. 9, a straight line extends from the rear end portion to the front end portion between the transmission 3 </ b> A of the traveling device 3 and the step portion 8 </ b> A of the control unit 8.

  In order to easily attach and detach the second mower device 90, the first bearing portion 98 is formed in a split structure that is divided into two in the vertical direction, and the second bearing portion 99 and the third bearing portion 100 are divided in two in the front-rear direction. It is preferable to form a divided structure.

(Mounting structure for other secondmore devices)
Next, the mounting structure of another secondmore device will be described. In addition, the same code | symbol is attached | subjected to the same components, and the description which overlaps with the 2nd more attachment structure mentioned above is abbreviate | omitted.

  In the above-described second mower mounting structure, the left front frame 15 is connected to the front end of the left rear frame 16 of the left frame 2L by fastening means such as bolts, and the front side of the left front frame 15 and the front of the threshing device 4 are connected. In this configuration, the walls 4 </ b> A are connected by a connecting frame 17. On the other hand, as shown in FIGS. 14 to 16, other second mower device mounting structures are provided to prevent the left front frame 15 from drooping when the second mower device 90 is mounted and to increase the rigidity of the left front frame 15. The front side portion of the left front frame 15 is connected to the front intermediate frame 2B of the machine body frame 2 and the front wall 4A of the threshing device 4 by the attachment frame 110.

  The mounting frame 110 includes a first mounting frame 111 that extends forward from the front end of the left front frame 15, and a second mounting frame that connects the right side of the first mounting frame 111 and the front intermediate frame 2 </ b> B of the body frame 2. 112 and a third attachment frame 113 that connects the upper surface of the first attachment frame 111 and the front wall 4A of the threshing device 4. Note that the front wall 4A of the threshing device 4 is disposed above the front surface of the front intermediate frame 2B of the machine body frame 2 in the front-rear direction.

  As shown in FIGS. 15 and 16, the first mounting frame 111 is arranged on the right side of the left front frame 15, and the rear end portion of the second mounting frame 111 is a support member provided at the front end portion of the left front frame 15. 15A is detachably connected by fastening means 111A such as a bolt.

  As shown in FIGS. 14 and 15, the second mounting frame 112 has a substantially intermediate portion between the right front surface of the first mounting frame 111 and the left front frame 15 and the left intermediate frame 21 in the front intermediate frame 2 </ b> B of the body frame 2. The front is connected. The front end portion of the second mounting frame 112 is fixed to the right surface of the front end portion of the first mounting frame 111, and the hook-shaped plate 112A provided at the rear end portion is a support member provided at the front surface of the front intermediate frame 2B. 2b is detachably connected by fastening means 112B such as a bolt. In plan view, the second mounting frame 112 extends from the front end portion of the second mounting frame 112 toward the right side, extends from the right end toward the rear right side, and extends from the right rear end portion toward the rear side. And extends to the front surface of the front intermediate frame 2B.

  As shown in FIGS. 15 and 16, the third attachment frame 113 connects the upper surface of the front end portion of the first attachment frame 111 and the front wall 4 </ b> A of the threshing device 4. The front end portion of the third mounting frame 113 is fixed to the upper surface of the front end portion of the first mounting frame 111, and the bowl-shaped plate 113 </ b> A provided at the rear end portion is fastened to the front wall 4 </ b> A of the threshing device 4 with bolts or the like. The means 113B is detachably connected. In the side view, the third mounting frame 113 extends upward from the front end portion of the third mounting frame 113, extends upward from the upper end, and extends rearward from the upper rear portion. It extends and reaches the front wall 4 </ b> A of the threshing device 4.

  As shown in FIGS. 17 and 18, the rear surface of the bracket 114 formed in a substantially U shape in plan view is fixed to the front surface of the front end portion of the first mounting frame 111. In order to reduce the number of parts and simplify the connecting structure between the second mower plate 93 and the fuselage frame 3, the bracket 114 has a rotary shaft 25 extending in the left-right direction and a rotary shaft 25 via a bearing 118. A cylindrical first shaft 117 corresponding to the above-described first shaft 98A to be fitted is provided. In addition, the rear end portion of the first elevating frame 95 described above is fixed to the front portion of the outer peripheral surface of the first shaft 117.

  A conversion mechanism 25B is attached to the left end portion of the rotation shaft 25, and a sprocket 25A is attached to a portion biased toward the bracket 114 in an intermediate portion between the conversion mechanism 25B and the bracket 114 of the rotation shaft 25. Yes. The connection frame 95 extends in the front-rear direction, and the front end portion of the connection frame 95 is directly connected to the rear surface of the second more plate 93 without the connection frame 93B.

  As shown in FIGS. 16 and 17, a support plate 120 is attached to the front left surface of the second mounting frame 112. In order to reduce the number of parts, a sprocket 26F mounted on a rotary shaft 26 disposed on the rear part of the feeder house 20 and a sprocket 25A mounted on the rotary shaft 25 are wound around the left upper surface of the front upper portion of the support plate 120. A support shaft 121A for mounting a tension arm 121 for adjusting the tension of the chain 12F is erected, and a support for mounting a tensioning ring 122 for adjusting the direction of the chain 12F on the left upper surface of the support plate 120. A shaft 122A is erected. In addition, a stay 128 extending in the front-rear direction is attached to the left surface of the intermediate portion in the vertical direction of the support plate 120 so that the chain cover 145 that covers the conversion device 25 and the like is detachably attached.

In the space defined by the second mounting frame 112 and the third mounting frame 113 in plan view, as shown in FIGS. 15 and 16, as shown in FIGS. There is provided a plate 131 on which a hydraulic valve 130 for controlling the flow rate of the oil supplied to is mounted. The left side surface of the plate 131 is fixed to the right surface of the front side portion of the left front frame 15, and the rear side surface is fixed to the front surface of the front intermediate frame 2B.
Further, the upper side of the hydraulic valve 130 is covered with a hydraulic valve cover 132 in order to prevent accumulation of dust and the like on the hydraulic valve 130. The rear side portion of the hydraulic valve cover 132 is detachably attached to the front wall 4A of the threshing device 4 by fastening means such as a bolt.

  As shown in FIG. 17, a lower plate 125 extending to the traveling device 3 in a side view is attached to a rear portion of the connecting frame 95 with a fastening means 126 such as a bolt in order to easily perform a crawler replacement operation of the traveling device 3. It is attached detachably. At the rear of the lower plate 125, an opening 125 </ b> A is provided for attaching a pin 127 that is in contact with the convex portion 111 </ b> B formed on the lower surface of the first mounting frame 111 and restricts the lowered position of the second mower device 90. In addition, the lowering position of the second mower device 90 can be changed depending on the state of the field by providing two openings 125A in the front-rear direction at the rear part of the lower plate 125.

  Next, in order to facilitate attachment of the second elevating frame 96, as shown in FIGS. 11 and 12, the second elevating frame 96 is divided into two parts, a second front elevating frame 96C and a second rear elevating frame 96D. Is preferable.

  The second front lifting frame 96C and the second rear lifting frame 96D are connected by a connection bracket 96E having a substantially inverted U-shaped cross section. The front side portion of the connection bracket 96E is fixed to the rear end portion of the second front side lifting frame 96C, and the rear side portion of the connection bracket 96E is connected to the front end portion of the second front side lifting frame 96D by fastening means 96F such as a bolt. Removably connected.

  The front end portion of the second front elevating frame 96C is directly connected to the rear surface of the second more plate 93 without using the connection frame 93B in the same manner as the first elevating frame 95, and the rear end portion of the second rear elevating frame 96D is It is attached to a second shaft 99A that is rotatably supported by the second bearing portion 99. Further, in order to increase the rigidity of the second front lifting frame 96C and to prevent deformation and accumulation of harvested cereals on the second front lifting frame 96C, the second front lifting frame 96C has a lateral center in the lateral direction. A substantially triangular plate 96G is fixed. In order to further prevent the cereal grains from being accumulated, it is preferable to form the second front lifting frame 96C from a columnar steel material or a cylindrical steel material.

  Next, in order to facilitate attachment and detachment of the crawler of the traveling device 3, as shown in FIGS. 11 and 23, the third elevating frame 160 corresponding to the third elevating frame 97 described above is attached to the right frame 2R of the body frame 2. The structure which enables raising / lowering with respect to the rotating shaft 161 provided in the front part is suitable. The rotary shaft 161 includes a first shaft 98A to which the rear end portion of the first elevating frame 95 is attached, and a second shaft 99A to which the rear end portion of the second rear elevating frame 96D is attached to the front and rear and up and down directions. In the same position. That is, the rotation shaft 161 is arranged coaxially with the first shaft 98A and the second shaft 99A.

The front end portion of the third elevating frame 160 is connected to the second mower device 90 via the bracket 170, and the rear end portion of the third elevating frame 160 is the right connecting plate whose upper end portion is fixed to the right end portion of the rotating shaft 161. 162 and a left connecting plate 163 whose upper end is fixed to the left end of the rotating shaft 161 and is detachably connected to the right connecting plate 162 and the left connecting plate 163 by fastening means 164 such as a bolt. Yes.
As a result, the third elevating frame 160 can be disposed below the right frame 2R of the airframe frame 2, and the extension of the third elevating frame 160 to the outside of the airframe is suppressed, and collision with a bag or the like is prevented. be able to.

  In order to prevent the right connection plate 162 and the left connection plate 163 from being deformed, the right connection plate 162 and the left connection plate 163 are connected to a connection pin 167. Similarly to the lower plate 125, an opening 166A for attaching a pin 166 that abuts a convex portion 165 formed on the lower surface of the right frame 2R and restricts the lowering position of the second mower device 90 is provided at the rear portion of the right connecting plate 162. Is provided. In addition, the lowering position of the second mower device 90 can be changed according to the state of the field by providing two openings 166A in the front-rear direction at the rear portion of the right connection plate 162.

As shown in FIG. 24, the bracket 170 is fixed to the upper end portion of the connecting member 171 fixed to the right side portion of the rear surface of the second more plate 93 of the second more device 90.
The connecting member 171 extends rearward from the rear surface of the second more plate 93, and then extends upwardly from the rear end of the extending portion so as to reach the rear end portion. The bracket 170 is fixed to the right surface of the rear end portion of the connecting member 171.

  In order to easily attach / detach the third elevating frame 160 to / from the bracket 170 when attaching / detaching the crawler of the traveling device 3, the cross-sectional shape of the bracket 170 is formed in a substantially U-shape with the right side opened, and the third elevating frame 160. Is attached to the bracket 170 by fastening means 172 such as bolts.

As shown in FIG. 19, the second mower plate 93 formed of an angle material is arranged with one side of the ankle material on the upper side and downward from the rear end of one side surface to prevent accumulation of sawdust and the like. The other one side surface is arranged.
Further, in order to increase the rigidity of the second mower plate 93 and prevent deformation or the like, both the left and right sides of the connecting portion of the front end portion of the second mower plate 93 and the first elevating frame 95, the second mower plate 93 and the second front side Reinforcing pieces 135 are provided on the left and right sides of the connecting portion at the front end portion of the lifting frame 96D and on the right side of the connecting portion at the front end portions of the second more plate 93 and the connecting member 172. In addition, in order to prevent accumulation of sawdust or the like, the reinforcing piece 135 is provided to be inclined downward as it extends in the left-right direction.

<Lifting device>
A lifting device 74 that moves the second mower device 90 up and down in conjunction with the raising and lowering of the feeder house 20 of the pre-cutting processing device 5 is erected on the right side of the first lifting frame 95 at the front side portion as shown in FIGS. A lifting guide 70 made of a steel material in which a long hole 72 is formed along the up-down direction is rotatably connected to the pin 71 formed.
When the second mower device 90 is moved up and down in conjunction with the raising and lowering of the feeder house 20 of the pre-cutting processing device 5, a guide pin 73 erected on the left surface of the frame of the feeder house 20 is inserted into the elongated hole of the lifting guide 70. 72. That is, when the feeder house 20 of the pre-cutting processing device 5 is raised, the lifting guide 70 is moved upward while the guide pin 73 is engaged with the upper end of the elongated hole 72 formed in the lifting guide 70. Thus, the second elevating frame 95 and the like can swing upward about the first bearing portion 98 to raise the second mower device 90.

<Other lifting devices>
Next, another lifting device 74A that lifts and lowers the second mower device 90 in conjunction with the lifting and lowering of the feeder house 20 of the pre-cutting processing device 5 will be described.
As shown in FIGS. 11 and 12, the other lifting device 74 </ b> A includes a support member 77 attached to a front right plate of the feeder house 20 by fastening means such as a bolt, and a right plate of the feeder house 20 of the support member 77. A switching lever 76 that can swing in the front-rear direction around a support shaft 78 that is provided standing up and down in the left-right direction below the vertical support portion 77 </ b> A extending along the vertical direction. The lifting guide 75 is provided.

The support member 77 is formed of a vertical support portion 77A extending along the right plate of the feeder house 20, and a horizontal support portion 77B extending from the upper end portion of the vertical support portion 77A toward the side panel 8B of the control unit 8. Has been.
As shown in FIG. 13, first to third hooks 79 </ b> A to 79 </ b> C that adjust the rising start position of the second mower device 90 in three stages are provided at the right end of the horizontal support portion 78. Here, the rising start position of the secondmore device 90 is the height of the feeder house 20 when the secondmore device 90 starts to rise during the raising process of the feeder house 20, in other words, the feeder house in this state. This is a rotational position around 20 rotation axes 26.
The first hook 79A that locks the switched lever 76 located in the first state that sets the rising start position of the second more device 90 to a low position, and the rising start position of the second more device 90 is set to a middle position. A second hook 79B for locking the switching lever 76 positioned in the second state, and a third hook 79C for locking the switching lever 76 positioned in the third state for setting the rising start position of the second mower device 90 to a high position. Is provided.

  The first to third hooks 79A to 79C are formed in a substantially J shape with the front side opened in a plan view of the horizontal support portion 77B, and the third hook 79C provided on the rear side of the horizontal support portion 77B is When the switching lever 76 located in the first state is disengaged from the first hook 79A, or the switching lever 76 located in the second state is disengaged from the second hook 79B, the second mower device 90 is brought into the field. In order to prevent damage due to contact, the first hook 79A provided on the front side of the third hook 79C and the second hook 79B are formed larger than the first hook 79B and project toward the side panel 8B.

At the base of the switching lever 75, a central portion of a plate 76A formed in a substantially square shape when viewed in the axial direction of the support shaft 78 is fixed.
The lower portion of the plate 76A is supported so as to be swingable in the front-rear direction around the support shaft 78 of the vertical support portion 77A.
The upper surface portion of the upper portion of the plate 76A abuts on a lower ring 75C that sandwiches a spring 75B loosely mounted on the outer peripheral surface of the upper portion of the rod 75A of the lifting guide 75, and the lower ring 75C is in the axial direction of the rod 75A. Move up and down. Further, a columnar rod support portion 76B is erected on the upper side of the plate 76A toward the side panel 8B. A through hole 76C is formed at a substantially central portion in the left-right direction of the rod support portion 76B to insert a portion of the lifting guide 75 in the vicinity of the lower side of the lower ring 75C of the rod 75A.

Thereby, the rising start position of the second mower device 90 can be moved in the vertical direction by swinging the switching lever 75 about the support shaft 78 of the support member 77.
When the switching lever 75 is moved to the position of the first state, the plate 76B rotates most counterclockwise around the axis of the support shaft 78 of the support member 77, and the lower ring 75C of the lifting guide 75 is moved. By moving the rod 75A upward along the axial direction of the rod 75A, the rising start position of the second mower device 90 moves to the lowest position, which is the lowest position among the three stages.
In addition, when the switching lever 75 is moved from the first state to the second state, the plate 76B rotates clockwise around the axis of the support shaft 78 of the support member 77, so that the lower part of the lifting guide 75 is lowered. By moving the side ring 75C downward along the axial direction of the rod 75A, the rising start position of the second mower device 90 moves to the middle position, which is an upper position compared to the low position described above.
Further, when the switching lever 75 is moved from the second state to the third state, the plate 76B rotates most clockwise about the axis of the support shaft 78 of the support member 77, and the lifting guide 75 By moving the lower ring 75C downward most along the axial direction of the rod 75A, the rising start position of the second mower device 90 moves to a high position, which is the uppermost position among the three stages.

  In order for the operator of the control unit 8 to easily switch the switching lever 75, the tip of the switching lever 75 is bent toward the control unit 8 as shown in FIG. As shown in FIG. 12, it is preferable that the distal end portion of the switching lever 75 located at the rear is positioned behind the front panel 8C of the control portion 8.

  In addition, in order to prevent the switching lever 75 and the first to third hooks 79A to 79C from being disengaged, one end side is engaged with the lower side portion of the switching lever 75 and the other end side is the front side of the vertical support member 77A. It is preferable to provide an anti-disengagement spring 76D engaged with the.

  The lifting guide 75 includes a rod 75A that extends rearward and upward in the vertical direction, and a spring 75B that is sandwiched between the upper ring 75D and the lower ring 75F at the upper portion of the rod 75A.

  The rod 75 </ b> A swings on a support shaft 93 b erected on the right surface of the second front elevating frame 96 </ b> C of the second elevating frame 96 connected to a second more plate 93 provided at the front of the second elevating frame 96. A portion near the lower side of the lower ring 75C of the upper side of the rod 75A is attached to the support shaft 78 of the support member 77 in a swingable manner, and is attached to the feeder house 20 via the plate 76A and the support member 77. It is attached.

  The upper ring 75 </ b> D is restricted from moving upward along the axial direction of the rod 75 </ b> A by a locking member 75 </ b> F such as a nut fitted into a screw formed on the upper end of the rod 75 </ b> A. In addition, an upper end portion of a cylindrical collar 75E formed to be approximately half the length of the spring 75B is fixed to the lower surface facing the lower ring 75C of the upper ring 75D. The collar 75A is loosely mounted between the outer peripheral surface of the rod 75A and the inner peripheral surface of the spring 75B.

  The upper ring 75, which is restricted from moving upward along the axial direction of the rod 75 </ b> A by the locking member 75 </ b> F, moves the switching lever 76 in the first state and moves it to the lowest position 90. Is preferably provided at a position where the restoring force of the spring 75B is generated so as to move up and down following the unevenness of the field. Thereby, when the general-purpose combiner 1 travels beyond the heel, a collision between the second more device 90 and the heel can be avoided, and the second more device 90 can be suppressed.

Next, the operation of another lifting device 75A when the feeder house 20 is raised by the lifting cylinder 5A will be described.
When the feeder house 20 starts to be lifted by the lift cylinder 5A, the other lifting device 74A is configured such that the lower ring 75C is changed to the upper ring 75D by the plate 76A supported by the support shaft 78 of the support member 77 to which the feeder house 20 is attached. A first process of moving upward along the axis of the rod 75A while compressing the spring 75B until it contacts the lower surface of the fixed collar 75E, and the lower ring 75C is fixed to the upper ring 75D by the plate 76A. Through the second process of contacting the lower surface of the provided collar 75E, the second mower device 90 is raised as the feeder house 20 rises.
In the first process, since the moment due to the weight of the second mower device 90 and the moment due to the restoring force of the spring 75B are balanced around the support shaft 78 standing on the support member 77, the second mower device 90 is in a floating state. Maintained.
On the other hand, in the second process, the moment due to the weight of the second mower device 90 is larger than the moment due to the restoring force of the spring 75B around the support shaft 78 standing on the support member 77, and the lower ring 75C is moved upward. Since it is in contact with the lower surface of the collar 75E fixed to the ring 75D, the second mower device 90 rises as the feeder house 20 rises.

<Power transmission>
As shown in FIG. 10, the power output from the engine E is input to the hydraulic continuously variable transmission 10 that drives the traveling device 3 via the belt 10 </ b> A, and is output from the hydraulic continuously variable transmission 10. Part of the motive power is transmitted to the pulley 26A via the transmission belt 11A. The pulley 26 </ b> A is attached to a rotating shaft 26 disposed at the rear part of the feeder house 20. The rotation transmitted to the pulley 26A is transmitted to the sprockets 26C, 26D, 26E, and 26F via the rotating shaft 26. The rotary shaft 26 is installed in a left-right orientation at a front portion of the machine body frame 2, and the pre-cutting processing device 5 rotates up and down around the rotary shaft 26.
Sprockets 26C and 26D and a pair of left and right sprockets (not shown) attached to a shaft 22 rotatably mounted on the front portion of the feeder house 20 are used for conveying left and right cereals with a large number of lugs. The chains 12A and 12B are wound around, and the power is transmitted to the sprockets 26C and 26D, whereby the chains 12A and 12B are driven. Thereby, the cereals conveyed to the feeding port 32 in front of the feeder house 20 can be conveyed to the threshing device 4 provided at the rear.

The rotation transmitted to the sprocket 26E is transmitted to the sprockets 27A and 28A via the chain 12C. The sprockets 27A and 28A are attached to shafts 27 and 28 that are rotatably supported on the left side of the feeder house 20, respectively.
The rotation transmitted to the sprocket 27A is transmitted to the sprocket 27B via the shaft 27. The rotation transmitted to the sprocket 27B is transmitted to the sprocket 34A via the chain 12D. The sprocket 34 </ b> A is attached to a shaft 34 that is installed on both left and right side plates of the auger frame 31 and is equipped with a scraping auger 33. As a result, the rotation of the engine E is transmitted to the take-in auger 33, and the cereals that have been taken into the auger device 30 by the take-in device 60 or the like can be transferred to the feed port 32 in front of the feeder house 20.

The rotation transmitted to the sprocket 34A is transmitted to the sprocket 34B via the shaft 34. The rotation transmitted to the sprocket 34B is transmitted to the sprocket 68B attached to the right end of the shaft 68 via the chain 12E. The shaft 68 is installed on the left and right side plates of the auger frame 31. The rotation transmitted to the sprocket 68B is transmitted via a shaft 68 to a pulley 68A attached to the right end of the shaft 68.
The rotation transmitted to the pulley 68 </ b> A is transmitted to a pulley 62 </ b> A attached to a shaft 62 that is rotatably mounted on the tip of the arm 63 of the driving device 60 via the transmission belt 11 </ b> C. The shaft 62 is equipped with a take-up reel 61, whereby the rotation of the engine E is transmitted to the take-up reel 61, and the cereals that have fallen on the field, the cereals having a low length, etc. are raked into the auger device 30. be able to.

The rotation transmitted to the sprocket 28A is transmitted to the conversion mechanism 28B via the rotating shaft 28. The conversion mechanism 28B is a device that converts the rotation of the rotary shaft 28 connected to the input side into the reciprocating swing of the arm 29A connected to the pin 28P on the output side.
The reciprocating swing transmitted to the arm 29A is transmitted to the swing arm 54 of the cutting blade device 50 and the swing arm 84 of the vertical cutting blade device 80 through the shaft 29 connected to the arm 29A. Thereby, the rotation of the engine E is transmitted to the movable blade 51 of the cutting blade device 50, and the stock of the cereal that has been scraped by the scraping reel 61 can be cut. In addition, the rotation of the engine E is transmitted to the movable blade 81 of the vertical cutting blade device 80, so that high-price cereals such as oil rape and rape can be cut.

The rotation transmitted to the sprocket 26F is transmitted to the sprocket 25A via the chain 12F. The sprocket 25 </ b> A is attached to a rotating shaft 25 that is rotatably supported on the left side of the feeder house 20. The rotation transmitted to the sprocket 25A is transmitted to the conversion mechanism 25B via the rotating shaft 25. The conversion mechanism 25B is a device that converts the rotation of the rotary shaft 25 connected to the input side into the reciprocating swing of the arm 24A connected to the pin 25P on the output side.
The reciprocating swing transmitted to the arm 24A is transmitted to the swing arm 94 of the second mower blade device 90 via the shaft 24 connected to the arm 24A. As a result, the rotation of the engine E is transmitted to the movable blade 91 of the second mower blade device 90 and can be cut to further reduce the height of the stock of the cereal that has been cut by the blade device 50.

  The first transmission part A includes a sprocket 26E, a sprocket 28A, and a chain 12C wound around the sprocket 26E and the sprocket 28A. The second transmission part B includes a sprocket 26F, a sprocket 25A, A chain 12F wound around the sprocket 26F and the sprocket 25A is provided.

<Elevator cover>
An elevator cover 140 is provided on the left side of the feeder house 20 as shown in FIGS. In order to enhance the safety of the working environment and prevent the uncut rice culm from being caught, the elevator cover 140 is arranged on the left side of the feeder house 20 with the sprockets 26E, 27A, 28A shown in FIG. , 27A and 28A are arranged so as to cover the chain 12C wound around.

  The upper plate 141 of the elevator cover 140 is a front stay 21A extending from the front upper part of the left plate 20A of the feeder house 20 toward the left side, and a rear side extending from the rear upper part of the left plate 20A toward the left side. It is detachably attached to the side stay 21B by fastening means such as bolts.

  As shown in FIG. 22, the elevator cover 140 includes an upper plate 141 extending from the left plate 20A of the feeder house 20 toward the left side, and a left plate 142 extending from the left end of the upper plate 141 toward the lower side. The bottom plate 142 includes a bottom plate 143 extending from the lower end toward the right side, and is formed in a substantially U-shape when viewed from the front. The bottom plate 143 includes a front bottom plate 143A formed integrally with the upper plate 141 and the left plate 142, and a rear bottom plate 143B that can be removed from the elevator cover 140 when the chain cover 145 described later is attached. Yes. The rear bottom plate 143B is detachably attached to the lower end portion of the left plate 142 and the rear end portion of the front bottom plate 143A by fastening means such as bolts. When the rear bottom plate 143B is removed, an opening through which the chain cover 145 can enter from below is formed in the lower portion of the elevator cover 140. When the feeder house 20 is lowered, the upper portion of the chain cover 145 enters the opening.

<Chen cover>
A chain cover 145 is provided below the elevator cover 140 as shown in FIGS. In order to improve the safety of the working environment and prevent the uncut rice culm from being caught, the right chain cover 145A of the chain cover 145 includes the sprockets 25A and 26F and the chain wound with the sprockets 25A and 26F shown in FIG. The left chain cover 145B disposed so as to cover 12F and fixed to the front portion of the right chain cover 145A is disposed so as to cover the rotating shaft 25 and the conversion mechanism 25B.

  The right chain cover 145A includes a right plate 146 detachably attached to a stay 128 provided on the support plate 120 by fastening means such as bolts, and an upper plate 147 extending from the upper end of the right plate 146 toward the left side. The upper plate 147 includes a left plate 148 extending from the left end toward the lower side, and is formed in a substantially U shape when viewed from the front. Further, as shown in FIG. 20, when the feeder house 20 is moved to the lowered position, the upper side portion of the right chain cover 145A is the right plate 20A of the feeder house 20, the upper plate 141 of the elevator cover 140, and the side plate. A cutout portion (not shown) is formed on the lower side of the front portion of the left plate 148 so that the rotary shaft 25 and the like can be inserted therethrough.

  The left chain cover 145B includes a first standing piece 149, a second standing piece 150, and a third standing piece 151 that are erected in the left direction from a notch portion of the left plate 148 of the right chain cover 145A. The left plate 152 is fixed to the left ends of the first to third standing pieces 149 to 151. Further, as shown in FIG. 20, the left side chain cover 145B is provided on the front side of the right side chain cover 145A so as to protrude leftward, and is provided on the left side of the left plate 142 of the elevator cover 140. Yes.

  In order to prevent the accumulation of sawdust and the like on the left chain cover 145B, in a side view, the first standing piece 149 is erected rearward and the second erected piece 150 is erected rearwardly, The third standing piece 151 is erected substantially vertically in the vertical direction. In addition, in order to prevent the shaft 24 connecting the conversion device 25B and the swing arm 94 and the first standing piece 149 from contacting with each other due to vibration generated during the driving of the second mower device 90, a substantially inverted U-shape is formed. An opening 149A is formed.

<Tension hook arrangement>
The power output from the engine E is transmitted to the hydraulic continuously variable transmission 10 that drives the traveling device 3 via the belt 10A. The tension of the belt 10A is adjusted by a tension arm (not shown) provided at an intermediate portion in the longitudinal direction of the belt 10A. In order to prevent the tension arm from excessively moving toward the belt 10A, the intermediate portion of the tension arm is supported by the tension hook 10B.
In order to easily adjust the setting position of the tension hook 10B in the vertical direction, as shown in FIG. 25, the support member 10C is disposed on the front side of the front side of the dust cover 8D provided on the left side of the side panel 8B. The tension hook 10B is attached.

  The present invention can be used for a general-purpose combine harvesting pretreatment apparatus.

2 Machine frame 2B Front intermediate frame 4 Threshing device 4A Front wall 5 Cutting pretreatment device 8 Control unit 15 Left front frame 25 Rotating shaft 25B Conversion mechanism 50 Cutting blade device 90 Second mower device 95 First lifting frame 96 Second lifting frame 97 Third lifting frame 110 Mounting frame 111 First mounting frame 112 Second mounting frame 113 Third mounting frame 117 First shaft

Claims (4)

Cutting blade that cuts planted culm on a body frame (2) on which a control part (8) on which a pilot rides on one side and a threshing device (4) for threshing cereals harvested on the other side are mounted In a combine equipped with a pre-cutting processing device (5) provided with a device (50) and a secondmore device (90) for cutting the residue after cutting at a position rearward of the cutting blade device (50),
A plurality of lifting frames (95, 96, 97) that support the secondmore device (90) so as to be vertically movable can be attached to the body frame (2) at predetermined intervals in the left-right direction,
A cylindrical first shaft (117) is fixed to a rear portion of the lifting frame (95) on the threshing device (4) side of the lifting frame (95, 96, 97), and the first shaft (117) is attached. A mounting frame (110) that is rotatably supported is attached to the front part of the left front frame (15) of the machine body frame (2) located on the threshing device (4) side,
The rotation shaft (25) of the conversion device (25B) that drives the second more device (90) extends in the left-right direction and is rotatably supported on the inner peripheral surface of the first shaft (117). Combine.   A first mounting frame (111) attached to the front portion of the left front frame (15) and extending in the front-rear direction, the front portion of the first mounting frame (111), and the airframe A second mounting frame (112) for connecting a front intermediate frame (2B) extending in the left-right direction of the frame (2), a front portion of the first mounting frame (111), and a front wall of the threshing device (4) The combine according to claim 1, formed by a third mounting frame (113) connecting (4A).   The second mounting frame (112) extends in the left-right direction from the front portion of the first mounting frame (111) toward the control section (8), and the third mounting frame (113) is connected to the first mounting frame (113). The combine according to claim 2, wherein the combine extends from the front part of 111) upward to the second mounting frame (112).   The first mounting frame (111) is configured to be detachable from the left front frame (15), the second mounting frame (112) is configured to be detachable from the front intermediate frame (2B), and the third mounting frame ( The combine according to claim 2 or 3, wherein 113) is configured to be detachable from the front wall (4A).

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