JPH0687705B2 - Grain culm guide device in combine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a grain culm guiding device in a combine for cutting and threshing grain culms.

(B) Conventional technology Conventionally, as a grain culm guiding device in a combine, a cutting blade and a stock root scraping chain are provided at the rear of a plurality of raising bodies, and a stalk scraping with a scraping claw is provided above the stock root scraping chain. A combine harvester with a body that scrapes the root and stem of the grain culm
It has already been proposed by Japanese Patent Publication No. 56-26510.

(C) Problems to be Solved by the Invention In the known combine described above, when the stalk-incorporating body is raised in two steps up and down as a guide for squeezing the stalk in an orderly manner even with respect to the long culm, the drive shafts thereof are increased. Drive shaft from the lower side, the drive shaft becomes long, which causes a large manufacturing error due to distortion during quenching, and when the center side of the cutting device is maintained, the stem scraping body and its shaft support. There is a problem that the constituent members become an obstacle and become unstable when the stalk scraping body becomes higher.

(D) Means for Solving the Problems The present invention provides a cutting blade and a stock root scraping chain at the rear of the raising body, and a stem scraping body with a scraping claw above the stock stock scraping chain. In a combine for scraping the root part and the stem part of the grain culm, the stem part scraping bodies are arranged in two stages, and the lower part of the shaft for driving these stem part scraping bodies, A lower part of a holding cylinder of a shaft which projects upward from a gear case provided below and which drives the stock-source scraping chain is detachably interlocked, and a lower portion of a holding cylinder of the shaft which drives the stem scraping member is fixed to a bolt. In order to solve the above-mentioned problems, the top part of the upper stem scraping body is detachably attached to the upper guide plate fixed to the rear surface of the pulling body.

(E) Action The grain culm that is raised by the grain culm raising body and cut by the cutting blade is
The root part is scraped by the root scraping chain, and the stem part is scraped by the upper and lower tiered stem part scraping bodies with raised claws, and then, like the conventional one, is fed later by the grain culm conveying device to the threshing device. Supplied.

The shafts that drive the two upper and lower stem scraping bodies are connected to the shafts of the stock root scraping chain, so that the shafts are shortened, thereby reducing distortion during quenching. Further, since the lower part of the holding cylinder of the shaft of the stalk portion scraping body can be attached to and detached from the fixing member, and the upper stalk portion scraping body is screwed to the upper guide plate screwed to the back surface of the pulling body. When servicing the central portion of the reaping device, the above servicing can be carried out very easily by removing the upper and lower stalk scrapers together with the holding cylinder. Further, the assembling is easy, and in the assembled state, the upper and lower two stages of the stem scraping body fixedly hold the lower part as well as the upper part through the spike guide plate by the firm raising body, Stable and accurate scraping can be performed.

(F) Embodiments An embodiment of the present invention will be described with reference to the drawings. 1 is a self-throwing threshing device mounted on a machine base 3 having a traveling device 2, and the other side is operated in order from the front part. A panel 4, a cockpit 5, an engine E on the lower part thereof, a grain tank, etc. on the rear part thereof, and a plurality of grass bodies 7, ...
..., grain culm raising device 9, scraping wheel 10 ..., stock yuan scraping chain 11
..., a stalk scraping belt 12 with a lug, a stalk scraping chain 13 with a scratching claw that constitutes the stalk scraping body 13, a cutting device including a cutting blade 14, a lateral transport chain 15 and the like. A vertical conveying device 16 is arranged from one side of the device toward the upper rear, and a stock source lifting body 17 and an ear-side lifting device are provided between the end of the vertical conveying device 16 and the supply section of the threshing device 1. A hoisting device in which the bodies 18 are arranged in parallel is provided.

Next, the configuration of each part in the 5-row cutting type combine will be described in detail.

[Cropping device] As shown in FIG. 1, the grain culm raising device 9 has two pairs of raising bodies 9a with adjacent raising routes, and one on the right side (when viewed from the front) with the raising route being outside. It is composed of the raising body 9b, and is driven by the cylindrical transmission case 19 on the upper side.

The scraping wheel 10 ... meshes the two on the left side, separately from them, meshes the three on the right side in a row in the lateral direction, and also attaches to the vertical axis 20 ..., and the pulley 21 above the vertical axis 20. The sprocket belt 22 is wrapped around the rear part of the stem scraping belt 12, and the sprocket wheels 22 and 22 mounted on the second and fourth vertical axes 20 and 20 from the left and the drive sprockets 23 and 23 at the rear of the sprocket wheels 23 and 23 Since the scraping chains 11 and 11 are stretched, the second scraping wheel 1 from the left side
0 drives the first scraping wheel 10 that meshes with it, the fourth scraping wheel 10 rotates the 3rd and 5th scraping wheels 10, 10 that mesh with both sides of it, and as a result, the 5th meshing wheel. The scraping wheel 10 of FIG. 1 rotates counterclockwise in a plan view, and the outer stock yuan scraping chain 11a corresponding to this is driven by the rear drive sprocket 23a, and the two scraping wheels 10, 10 on the right side are moved. The bearing to be supported is a mounting metal 10A that supports the scraping wheels 10 and 10 so that they mesh with each other.
It is detachably attached to the mowing frame via.

Further, as shown in FIG. 2, the shaft 20a of the rightmost scraping wheel 10 drives the lower stem stake chain 13a at the upper end, and the shaft of the driven sprocket at the rear of the stem scraping chain 13a is the upper stage. Drive the stem scraping chain 13b, and further, the V groove of the pulley 21 at the left end has two steps, and a lug is provided between the other V groove and the idle pulley 21a axially supported to the side. The stalk-incorporating belt 12a is stretched so that the grain can be scraped in a wide scraping passage described later.

The shafts 24, 24 of the drive sprockets 23, 23 stand up from the gear cases 25, 25 as shown in FIG. 3, and the stalk-incorporating chain 13 in two stages above and below the stalk-incorporating belt 12 ... ... is stretched, and the space between the first grass body 7 and the adjacent medium grass body 8 from the left side, which is in front of the cockpit 5 and close to the cut-off land, is set to the grasses of other parts. When the width is wider than the width of the scraping path and when cutting is performed orthogonally to the grain culm row, or when cutting wide wheat, etc., the aircraft meanders and cuts in the previous process, and the cutting line is uneven. Even if it is turned on, it does not leave uncut. The upper and lower two-tiered stalk scraped chain
As shown in FIG. 7, the lower end of the shaft 24 that drives 13, 13 is
A drive shaft 25a, which is standing up from the gear case 25 and fitted with a sprocket at the rear part of the stock scraping chain 11, is fitted in a transmission manner, and the holding cylinder 24b of the shaft 24 has a bearing holder at the lower end. Then, the bearing holder is fitted to the bearing fitted to the sprocket, and a mounting piece integral with the bearing holder is detachably screwed to the fixing member 24a with a bolt 25c.

The lateral conveying chain 15 has a starting end facing the rearward side of the stock-source scraping chain 11 near the lateral feeding end part, and the end part is bent rearward and is driven by a drive sprocket 15a.

[Vertical Transfer Device] The vertical transfer device 16 includes a stock carrier 26 in which a sandwiching rail 26a is provided on the transfer surface of a transfer chain, and a chain-like carrier in which a guide rod is installed in the chain with a transfer claw at a holding gap. 27, and they are driven by a sprocket of a shaft 29 rising from a gear case 28, and the front portion of the bristle-side carrier 27 has a lateral carrying section parallel to the lateral carrying chain 15. .

The vertical transfer device 16 is tilted up and down by a lift arm 16c about a horizontal axis P of the gear case 28 by means of a motor 16a fixed to an oblique cylinder 94, which will be described later, through links 16b ...

[Lifting and Supplying Device] In FIGS. 1, 3, and 5, the stock carrier 17
The ear-side feeder 18 is supported by a frame 31 projecting from the front surface of the threshing device 1 via a U-shaped rod 32, and the starting ends of these feeders 17, 18 are the stock carrier 26. Is located below the end of the threshing device 1, and the end of the threshing device 1 is higher than the entrance plate 33a projecting from the supply port 33.
The terminal ends of the stock carrier 26 and the ear-side carrier 27 are arranged in parallel with each other so as to enter between the start ends, and the stock carrier 17 has a chain 17a having a low protrusion on each plate and its connection. It is rotatably attached to the outside of the pin and consists of scraping claws 17c that stand up and project by a guide rail 17b during the ascending stroke.
The ear-side lifting body 18 has a lifting nail 18a ... which is longer than the lifting nail 17c of the stock source lifting body 17, and as shown in FIG. A lifting guide plate 34 is provided side by side, and between the stock source lifting body 17 and the ear-side lifting body 18, an upper inclined guide plate 35 whose upper end is fixed to the lower surface of the inlet plate 33a, and a lower portion are the above-mentioned. The upper tilt guide plate 35 is hinged to the upper surface of the gear case 28.
A movable guide plate (36) is provided on the upper surface of the lower part of the same.

The drive sprocket 37 of the stock feeder 17 and the drive sprocket 38 of the bristle feeder 18 are mounted on a shaft 41 which axially supports a driven sprocket 40 of the feed chain 1a, as shown in FIG. The clutch 43 in the clutch case 42 is disengaged from the clutch claw engraved on the side surface of the driven sprocket 40 by the operation of the shifter 44, and the shifter 44 is interlockingly connected to the traveling clutch petal 45 by the wire 46.
When the traveling clutch petal 45 is stepped on during work, the traveling clutch is disengaged, and since the mowing device and the vertical conveying device 16 are linked to the traveling device 2, the machine body and the mowing device etc. are stopped, and at the same time, the clutch 43 is disengaged. The lifting device is also stopped.

Further, a guide rod 47 is provided on the upper surface of the stock source lifting body 17, and the lower end portion of the guide rod 47 is outside the rear end of the frame body 48 that holds the holding rail 26a of the stock source carrier 26. As shown by the solid line and the chain line in FIG. 6 (a), a pin 50 is pivotally supported on the side surface so as to be rotatable back and forth. When the vertical conveyance device 16 is tilted up and down to adjust the handling depth, the pin 50 is rotated. Is extremely close to the horizontal axis P, which is the center of rotation of the vertical conveyance device 16, in a side view, the guide rod 47 freely tilts about the base portion and the stock unloader 17
Close to the transport surface of and always hold down.

Further, when carrying out a manual operation, when the main lever of the transmission 57 is disengaged by operating the change lever, the traveling device 2 and the pretreatment device are stopped. The clutch 43 can be kept engaged, and in this state, the guide rod 47 is in the front (a) position shown in FIG. 6 (a) (during shallow handling adjustment),
Alternatively, when the robot is turned to the (b) position (during deep handling adjustment), the operator can easily put the hand-cut culm on the stock-source lifting body 17 and the ear-side lifting body 18 located at a position lower than the supply port 33. In addition, when returning to the cutting and threshing work, as shown in FIG. 6, when the guide rod 47 is tilted rearward and pushed lightly, the rear part is fixed to the outer surface of the pinching rail 1b. The spring plate 51 having its front portion opened is pushed outward and abuts its base portion, and the front portion is received by the stopper 52 and set in a predetermined guiding posture.

Thus, since the diameter of the drive sprockets 37, 38 of the stock source lifting body 17 and the ear side lifting body 18 is smaller than the diameter of the driven sprocket 40 of the feed chain 1a, the feed speed V ₁ of the feed chain 1a is It is higher than the pumping speed V ₂ of the pumping device.

[Pretreatment Frame and Transmission Device] As shown in FIGS. 2 and 4, the pretreatment frame is a top link 53 for the cylindrical frame of the horizontal axis P, and a pair of left and right lower links 54, 54 for the lower part of the pretreatment frame. It is supported by the frame 31 and the machine base 3 which are integral with the vehicle, and is configured to move up and down while maintaining a substantially constant posture by the expansion and contraction operation of the hydraulic cylinder 56. The power of the engine E is transmitted to the transmission 57 via the clutch 58. The rear lateral shaft case 60, which is input and transmitted through a refraction transmission mechanism 81 described later, has three gear cases 61, 62, 63, and the front lateral shaft case 65 has four gear cases 66, 67, 25, 25. The right end of the front horizontal shaft case 65 and the right end of the rear horizontal shaft case 60 are integrally connected by a connecting frame 71 screwed in an L-shape by a holder 70, and the rear horizontal shaft case 60 is provided. The left side gear case 61 and the front horizontal axis case 65 are the second gear case 67 from the left.
Are connected to each other by a shaft case 72 in the front-rear direction to form a transmission case 73 which also functions as an integral frame.

Further, the mowing frame 74 is configured by connecting a plurality of vertical frames 75, to which the respective grass bodies 7 ... And middle grass bodies 8 ... Are attached, by two horizontal frames 76, 77 and a cutting blade frame 78. ,
As shown in FIG. 4, the rear part of the mowing frame 74 is superposed on the lower surface of the front part of the frame made up of the transmission case 73, and the right and left parts 2
The vertical frame 75 at the right end is divided toward the rear part and is detachably connected by a bolt 80.

As shown in FIGS. 1 to 3, the refraction transmission mechanism 81 has a transmission 82 attached to the lower frame of the cockpit 5, and an input pulley 83 of the transmission 82 is attached to a pulley in front of the transmission 57. Driven by 84, the output pulley 85 is interlockingly connected to the pulley 87 of the intermediate shaft 86 by the belt 88 with the clutch pulley, and the sprocket 89 of the intermediate shaft 86 and the rear horizontal case 60 are connected.
The sprocket 91 mounted on the inner horizontal shaft 90 is interlockingly connected by a chain 91a, and the rear part of the bearing 86a of the intermediate shaft 86 is rotatably loosely fitted into the bearing cylinder 85a of the output pulley 85. The rear surface is supported by a semicircular receiving portion provided at the front end of the arm 92, the upper portion of the front bending arm 93 is fixed to the bearing 86a, and the lower portion is loosely fitted in the rear horizontal shaft case 60, so that the hydraulic cylinder is formed. When the pretreatment frame is moved up and down in a substantially constant posture by 56, the transmission 82 is integrated with the machine base 3, whereas the rear horizontal shaft case 60 is moved up and down integrally with the transmission case 73 while changing the relative distance. However, the front bending arm 93
By bending and extending with the intermediate shaft 86 of the rear bending arm 92 as the bending point, smooth transmission can be performed without changing the axial distance, and the threshing device 1 is separately driven by the engine E.

Further, the gear case 28a provided so as to be provided in the gear case 28 that drives the vertical transfer device 16 is connected to the gear case 62 of the rear horizontal shaft case 60 by a slanting cylinder 94 having a back transmission shaft installed therein, and the inside of the gear cases 28, 28a. Since the front fulcrum of the top link 53 coincides with the abscissa P of the above, it is possible to reliably and reliably perform transmission, and the cylindrical transmission case 19 of the grain culm raising device 9 rises from the gear case 66. It is driven by the shaft 19a.

[Crop guide device] A rear lateral guide plate 95, which also serves as an L-shaped cover in plan view, covering the outside and front of the refraction transmission mechanism, is detachably screwed to the front bending arm 93 via a stay 96. This rear side guide plate 95 is attached to the second and the third pulling bodies from the left.
9a, a vertical guide 97 that extends rearward from the rear side of the lower part of 9a
As shown in FIG. 1 and FIG. 3, the lateral guide portion 97b of the lower guide plate 97, which is composed of a and 97a and the lateral guide portion 97b connecting the rear ends thereof, is opposed to the lateral guide portion 97b with a lateral conveying path therebetween. A lower guide plate 97 is also attached to the rear surfaces of the first and second raising bodies 9a and 9b from the right, and the wide guide plate 97c extending rearward from the rear side of the leftmost raising body 9a has a rear portion. Is bent along the rear surface of the lateral transport path, and the vertical middle portion of the guide plate 97c is formed into a V-shaped protruding strip portion 97c ', which extends laterally from the holding cylinder of the shaft 19a. The channel type supporting arm 97d which is projected is attached to the ridge 9
Since it is fitted and screwed to the rear surface of 7c ', the rear portion of the guide plate 97c can be firmly supported and the protrusion 97
Since c ′ comes into line contact with the horizontally fed grain culms, the transport resistance can be reduced and the grain culms can be fed horizontally in an orderly manner.

Further, an upper guide plate 98 having a triangular shape in a side view is also provided on the upper portion of the lower guide plate 97 just above the horizontal guide portion so that the horizontal guide portion is substantially flush with the horizontal guide portion 97b of the lower guide plate 97. Upper guide plate
The sloped part of the upper part of 98 almost corresponds to the entire surface of the raised body 9a ..., 9
It is screwed to the back surface of b with bolts 99, and the lower part is provided with a slight gap to allow the straw chips to pass through the upper support frame of the stalk scraping chain 13 as shown in FIGS. 3 and 7. The stays 99a, 99a are detachably screwed.

[Carding weeding device] The raising body 9 in which the non-acting side of the grain culm raising device 9 is close to
At the lower part between a and 9a, a carding weeding device 100 is mounted as shown in FIGS. 2, 3 and 8, and the carding weeding device 100
Drives the shaft 101 in the front-rear direction via the chain by the shaft of the floating sprocket 9d of the one raising body 9a, and the chain case 102
There are cardboard claws 103 on the sprocket that is supported on the upper and lower parts of the…
When the cardboard chain 104 mounted so that it can be undulated is stretched and the shaft 104a of the upper sprocket is driven by the shaft 101 via the bevel gear, the cardboard claws 103 ... As shown in FIG. 3, stems located at the lower edge of the lower guide plate 97 or at the lower tier are about 1-2 pitches (preferably 1,5-2 pitches) in the drawing (l is 1 pitch in the figure). The front part of the partial scraping chain 13 or the stem scraping belt 12 stands up to a height corresponding to the height of the combing belt 12 and protrudes by force to project on the comb, and at the upper limit of the comb, the grain culms are raised. When it is delivered to the plant, it is possible to reduce the number of shedding and the removal of culms compared to the case where the combing is done up to the upper part of the inducing body 9a, 9a without difficulty by loosening with the raising claws until the ear side. it can.

Further, the carding claw 103 enters the space between the raising bodies 9a, 9a and descends as shown in FIG. 8 (a) in the descending stroke, and the rear surface on the non-acting side of the raising bodies 9a ... Is open. The guide plates 106, 106 bent from the front part of the opening portion toward the rear are the chain case 102.
The straws, mud, etc. are guided rearward and downward from the rear opening of the above, and they are prevented from invading the opposite openings of the raising bodies 9a, 9a. 9
Straws discharged from a and 9a fall.

Further, although not shown, a carding upper weeding device 100 or a carding upper weeding device having a height substantially equal to that of the raising body 9b is attached to the outside of the raising body 9b on the uncut side.

[Operation] Next, the operation will be described.

It is divided by the grass bodies 7 ... and the medium grass bodies 8 ...
The grain culm, which is raised by the grain culm raising device body 9 while being combed by 100, is scraped at the base of the plant by the stalks scraping belts 12, ... The grain culm scraped from the route to the transport route is guided at the rear by the guide plate 97c and the rear lateral guide plate 95, and the front is guided by the upper guide plate 98 and the lower guide plate 97, and from the intermediate scraping route. The scratched grain culms merge with the grain culm that is fed laterally from the left side, and merge with the curved portion at the end of the transverse feeding path.

The grain culms thus fed in the horizontal direction are succeeded by the vertical transport device 16 and are subsequently transported, while the motor 16a is activated by the detection result of the handling depth sensor (not shown) and the vertical transport device 16 is rotated up and down. The stock depth was adjusted by moving the stock, and at the end of the stock, the stock carrier 26 and the lower part of the stock lifter 17 were wrapped, so they were smoothly held over and held by the guide rod 47. In the state, it is inherited by the stock source lifting body 17 and the pick-up claw 17c, the ear side drops onto the ear-side lifter 18, is inherited by the pick-up claw 18a, and is respectively fed.

At that time, since the end portion of the vertical conveying device 16 is inserted between the starting end portions of the stock-source lifting body 17 and the ear-side lifting body 18, the vertical transportation device 16
The root of the grain culm that fell from the end of
And to be reliably received on the ear-side carrier 18 and to be transferred and carried at a wider interval outside the carrier ends of the stock carrier 26 and the ear-side carrier 27 of the vertical carrier 16. Then, the stock was lifted in a stable posture in the lateral direction, and the stock base section carried out orderly feeding to the start ends of the feed chain 1a and the pinching rail 1b of the threshing device 1, and the head side did not disturb the posture, and the delay in pumping was achieved. Can be supplied to the supply port 33 without causing

In the case where the traveling device 2 sinks like a wetland, when the pretreatment frame of the cutting device and the vertical transfer device 16 and the like is raised by the hydraulic cylinder 56, the rear bending arm 92 and the front bending arm 92 of the bending transmission mechanism 81 are moved. Since the interval between the shaft cores is constant only by decreasing the angle with 93, it is possible to perform reasonably power transmission.

Thus, when the scraping device scrapes a grain culm, its ears are overlapped with the top of the stem scraping body 13 and the back surface of the raising body 9a and shake left and right by the upper guide plate 98 connected thereto. Without being guided, the upper edge of the upper guide plate 98 is in close contact with the rear surface of the raising body 9a from the front end to the rear end, and the lower edge is thin on the top surface of the stem scraping body 13 like straw scraps. Since the ears have only a narrow gap that does not enter the ears only when they pass, the ears can be neatly guided without shedding.

In addition, the stalk scraping body 13 ... Is constantly vibrating when the scraping load fluctuates in a high standing state and the machine body moves up and down due to the unevenness of the field, but the top of the stalk scraping body 13 via the upper guide plate 98. Since it is connected to the raising body 9a, the mowing frame 74, the raising body 9a, and the stem portion scraping body 13 are mutually coupled to form a truss shape, and the stem portion scraping body 13 does not vibrate. Scratch the grain culm while performing reliable transmission with a stable posture.

In addition, the trapping wheel 10 near the center of the machine width
11. When maintaining the stalk belt 12, etc., the holding cylinder 24b
When the bolt 25c screwing the lower part of the stalk and the bolt screwing the upper stem part scraping body 13 to the upper guide plate 98 are pulled out, the upper and lower stem part scraping bodies 13 and 13 are retained in the holding cylinder 24b, The axis inside it
It can be removed while assembled to the 24, and the maintenance can be performed very easily, safely and quickly,
It can be easily attached as an assembly after maintenance work is completed or during assembly during production. During cutting and threshing work, when the machine pitches or rolls, the upper stalk scraper
13 is in a high place and easily shakes, but since the upper and lower parts are screwed to a strong member, it is possible to surely hold it at a predetermined position and perform proper stalking.

(G) Effect of the Invention According to the present invention, a cutting blade 14 and a stock root scraping chain 11 are provided at the rear part of the raising body 9a, and a stem scraping body with a scraping claw is provided above the stock stock scraping chain 11. In a combine in which 13 is provided to scrape the root part and the stem part of the grain culm, the stem part scraping body 13 is moved up and down 2
The lower part of the shaft 24 that drives the stem scraping bodies 13 and 13 is arranged in a stepped manner, and the driving shaft 25a that projects upward from the gear case 25 provided below and drives the stock scraping chain 11
And a lower portion of a holding tube 24b of a shaft 24 for driving the stem portion scraping bodies 13 and 13 is detachably interlocked with the fixing member 24a and a bolt 25.
Removably attached with c, the top of the upper stalk scraper 13
Since the upper guide plate 98 fixed to the rear surface of the raising body 9a is detachably screwed, the shaft 24 for driving the two upper and lower stem portion scraping bodies 13 and 13 is the shaft of the stock scraping chain 11. Since it is connected to, the length is shortened, so that distortion during quenching can be reduced and accuracy can be improved. Also, when servicing various devices in the center of the machine width, the stem portion scraping bodies 13, 13, its shaft 24, and the holding cylinder 24b can be removed as a set at a time and in a state of being greatly released. Therefore, the maintenance work can be performed safely, easily, and quickly. Further, in the assembled state, the upper and lower two-stage stalk scraping bodies 13 hold firmly even if the machine rolls or pitches, so stable and accurate scraping can be performed even if the grain culms are long culms. It can be carried out.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a developed plan view of a front portion of a combine, FIG. 2 is a side view of the same,
FIG. 3 (a) is a side view of the same with the right-hand side scraping path omitted when viewed from the front, (b) is a cross-sectional view of the upper guide plate, (c) is a cross-sectional view of the lower guide plate, and FIG. 4 is pretreatment. A plan view of the frame, FIG. 5 (a) is a vertical sectional view of the lifting device, (b) is a horizontal sectional view of the same,
(C) is a transverse cross-sectional view of an example in which a lifting claw of a stock source lifting body is attached to the inside, FIG. 6 (a) is a side view of the lifting device, and (b) is a plan view of a guide rod locking portion. , Fig. 7 is an exploded side view of the grain raked part, Fig. 8 (a) is a vertical plan view of the carding weeding device, (b).
Is a perspective view of the same as above, and FIG. 9 is a side view of the refraction transmission mechanism. 9a …… Raising body, 13 …… Stem scraping body 16 …… Longitudinal transporter, 26 …… Strain former transporter 27 …… Spearside transporter, 97 …… Lower guide plate 98 …… Upper guide plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page Examiner Taro Setu (56) References Actual public Sho 56-26510 (JP, Y2) Actual public Sho 58-34990 (JP, Y2) Actual public Sho 52-53626 (JP, Y2)

Claims (1)

[Claims] 1. A cutting blade 14 and a stock scraping chain 11 are provided at the rear of the raising body 9a, and a stem scraping body 13 with a scraping claw is provided above the stock scraping chain 11. In a combine for scraping the root part and the stem part of the grain culm, the stem part scraping body 13 is arranged in two stages, and the lower part of the shaft 24 for driving these stem part scraping bodies 13, 13. Is a drive shaft projecting upward from a gear case 25 provided below and driving the stock scraping chain 11.
25a is detachably interlockingly connected, and the lower portion of the holding cylinder 24b of the shaft 24 that drives the stem scraping bodies 13 and 13 is bolted to the fixing member 24a.
25c detachably mounted, the top of the upper stem scraping body 13 is detachably screwed to an upper guide plate 98 fixed to the rear surface of the raising body 9a. Culm guidance device.