JPH1014372A - Supporting frame for feed chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compose a supporting frame so as to support a crimped net by utilizing an open frame for supporting a feed chain. SOLUTION: This supporting frame for a feed chain is composed so as to place a net pressing plate 179 secured to the lateral end of a crimped net 31 on the tips of connecting members 167 and 168 constituting an open frame W in a thresher B, constituted by arranging the feed chain in the freely rotatably supported open frame W, conveying grain culms having plant feet nipped with the feed chain into the thresher B and grading threshed large straw wastes with the crimped net 31 arranged in the periphery under a threshing cylinder 20 of the thresher B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open frame that supports a feed chain and that can be opened by being rotated to the side of an airframe.

[0002]

2. Description of the Related Art Conventionally, grain stalks cut by a cutting section device are delivered to a feed chain and conveyed to a threshing device. In the threshing device, the handling cylinder is laid horizontally in the front-rear direction, and only the chaff and small straw chips fall from the crimping net disposed below the handling cylinder onto the sorting / conveying device below. Since the front and rear and the right side of the crimping net are supported and fixed by the support frame, and the left side of the crimping net is covered with the chain cover of the feed chain,
The left side of the crimp net was unsupported. Further, the feed chain is an under-chain type chain and is disposed inside the chain cover. The chain cover is supported by an open frame, and the rear portion of the open frame is pivotally supported by a support column erected at the rear of the machine body, and the feed chain is rotated to the side to perform maintenance of the chain, a threshing device or a rocking device. The maintenance of the sorting machine is performed.

[0003]

However, in the conventional crimping net, the side cover covering the side is configured to rotate integrally with the open frame of the feed chain. , And the crimp net was configured to be cantilevered. The crimping net has no problem when the amount of chaff to be threshed is small, but when the amount of chaff to be threshed is large, the crimping net may be bent. It has been desired to have a configuration that supports the following.

[0004]

SUMMARY OF THE INVENTION In order to solve such problems, the present invention supports a feed chain for holding and transporting a culm by a threshing device on an open frame and supporting a rear portion of the open frame with a fulcrum. It is arranged so that it can be rotated to the side and can be opened, and a net holding plate fixed to the side end of the crimp net is placed on the upper end of the connecting member constituting the open frame. did.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problem to be solved by the present invention and the means for solving it are as described above. Next, the configuration of the embodiment shown in the attached drawings will be described. 1 is a side view of the whole combine, FIG. 2 is a side cross-sectional view of a threshing / sorting apparatus, FIG. 3 is a perspective view of a rocking main body formed of resin, FIG. FIG. 6 is a side view showing the pivoting structure of the crankshaft of the swinging body, FIG. 6 is a bottom view showing the same pivoting structure of the crank shaft, and FIG. 7 is a partial side view of the swinging body having a swingable screen. FIGS. 8 and 9 are partial plan views of a swing main body provided with a swinging structure of a sieve wire, FIG. 9 is a side view of Karin and a prefan provided in a swing sorting apparatus, and FIG. 10 is a suction amount adjusting mechanism. FIG. 11 is a skeleton diagram showing a configuration of power transmission to a threshing and swing sorting device, and FIG. 12 is a partial side view showing power transmission to Karin and a prefan.
FIG. 13 is a side view showing a support structure of a fry conveyor arranged on the side of the Glen tank, FIG. 14 is a rear view showing a support structure of the fry conveyor, and FIG. 15 is a plan view showing a support structure of the fry conveyor. Fig. 16, Fig. 16 is a right side view showing an auger rest provided on the front side of the Glen tank, Fig. 17 is a left side view showing the same auger rest, and Fig. 18 is a side view showing a discharge port of a discharge auger provided on a guide body. Partial sectional view, FIG.
9 is a front view showing a discharge auger in which a guide body is also arranged, FIG. 20 is a front view sectional view of the exhaust fan, FIG. 21 is a side sectional view of the exhaust fan, and FIG. 22 mounts a net holding plate on an open frame. FIG. 23 is a partial side view showing a support structure of Karino, FIG. 24 is a rear view showing a rear part of the threshing apparatus, FIG. 25 is a side view showing an open frame supporting a feed chain, FIG. Is a plan view partially sectional view showing a straw conveying device, FIG. 27 is a side view partially sectional view showing an auxiliary chain,
FIG. 28 is a partial rear view showing the power transmission configuration to the straw chain, FIG. 29 is a partial side view showing the rear part of the fuselage, FIG. 30 is a rear view partially showing the support configuration of the straw guide rod, and FIG. FIG. 32 is an assembled perspective view of the swinging mechanism of the swinging body, FIG. 33 is a partial perspective view showing the swinging drive link of the swinging body, and FIG. FIG.

Referring to FIG. 1, the overall structure of the combine will be described. A body frame 2 is mounted on a crawler-type traveling device 1, and a raising and reaping device A is arranged at the front end of the body frame 2 so as to be able to move up and down. The cutting and reaping device A projects the weeding board 3 at the front end to sown the culm, and raises the stalk to the rear of the stalk.
The raising of the tine raises the grain stem by the rotation of the tine protruding from the case 4, and cuts the root of the plant with the cutting blade 5 disposed at the rear of the weeding board 3, and the upper transport device, the lower transport device, It is transported to the rear by the vertical transport device 6, and the vertical transport device 6
The feedstock is passed from the upper end of the feed chain 7 to the feed chain 7 and conveys the culm into the threshing device. The provided straw cutter device 17 cuts the delivered straw and discharges it to the field. On the side of the threshing device, a Glen tank 12 for storing the sorted fine granules is provided, and in front of the Glen tank 12, an operation unit 19 is provided.

As shown in FIG. 2, the threshing device B has a handling cylinder 20 and a dust outlet processing cylinder 21 laid horizontally in the front-rear direction.
, Around which the handle blades 20a, 20a,.
A crimping net 31 is provided around the lower part of the cylinder 0 so that only paddy, small straw chips and the like leak. The dust outlet processing cylinder 21 is disposed on the Glen tank 12 side at the rear of the handling cylinder 20.
, And treats the attached particles of branch streak and the like that could not be processed by the handling cylinder 20, conveys the unprocessed material backward and discharges it to the outside of the machine.

Next, a driving structure will be described with reference to a skeleton diagram shown in FIG. An output shaft 260 protrudes in the left-right direction of the engine E, and one end of the output shaft 260 is input to a gear case 259, and a pulley,
At the same time as transmitting power to the transmission unit by transmitting power to the transmission case via the belt and driving the traveling device via the work clutch in the gear case 259, the power is transmitted to the reaper A, which is disposed at the front of the fuselage. The threshing device B, the swing sorting device C, the straw processing device, and the like are driven. An output shaft protruding rearward from the gear case 259 drives a dust outlet processing cylinder 21 and a handling cylinder 20 via pulleys and belts.

A drive shaft 261 protrudes laterally from the gear case 259, and an end of the drive shaft 261 is input to a power transmission unit arranged on the left side of the body, and is pulled rearward via a pulley and a belt. Karino 35, the first conveyor 2
2 to transmit power. Further, a second pulley 274 is fitted on the conveyor shaft 273 of the first conveyor 22 separately from the pulley 269, and a belt is wound around the second pulley 274, and the second conveyor 23, the swing sorting The oscillating body 51 of the device C and the exhaust fan 30 for exhaust
Also, the power can be transmitted to a binding device disposed at the rear of the fuselage at the rear of the machine body by driving the cutter and the straw cutter device 17. In addition, a fry conveyor 13 is driven to the other side of the first conveyor 22 via a bevel gear.
Is transported to the Glen tank 12 through the fry conveyor 13. A reduction conveyor 69 is connected to the other end of the second conveyor 23 via a bevel gear.
, And the discharge port at the other end of the reduction conveyor 69 is disposed so as to face the front of the crimping net 31 of the swinging and sorting apparatus C, so that the second product is reduced and sorting is performed again. .

On the other hand, power is transmitted from an output shaft 260 projecting to the right side of the engine E to a discharge conveyor 263 via a pulley, a belt, an interlocking shaft, and a bevel gear.
As a configuration capable of driving the vertical conveyor 264 and the discharge auger 265, the paddy stored in the Glen tank 12 can be discharged.

Next, the support structure of the handling cylinder 20 will be described with reference to FIGS. A drive case 133 for transmitting power to a drive shaft 136 of the handling cylinder 20 is provided at a front portion of the handling cylinder 20. An inclined portion 20b is formed at the front of the handling cylinder 20 to guide the grain stalk radially outward. A guide plate 134 having a hollow shape in a front view is fixed to the rear surface of the drive case 133, and the guide plate 134 is disposed on the same axis as the drive shaft 136. The coming culm is guided to the lower portion of the drive case 133, and the inclined portion 2 of the handling drum 20 is guided by the guide plate 134.
0b, and guided so as to pass between the handling cylinder 20 and the crimp net 31 fixed to the support frame, and threshing is performed using the handling blades 20a. A reinforcing plate 137 is fixed to the lower portion of the guide plate 134 to protect the guide plate 134 which is worn by the contact of the grain stalk guided by the handling drum 20 so that the reinforcing plate 137 is worn. , The reinforcing plate 137 may be replaced.

Further, as shown in FIG.
A partition plate 142 is provided on the rear surface, and a cover plate 143 is fixed to the partition plate 142. The mounting plate 143 is a disk having a hole 143 a having the same axis as the drive shaft 136 and having a hole formed therein. 145 is fixed to prevent the culm from being involved in the drive shaft 136.
The guide rod 145 is fixed to the mounting plate 143 using a fixing plate 146 and a screw plate 147. That is, as shown in FIG. 31, the fixing plate 146 is a square plate, and pivotally supports one end of a guide rod 145 bent substantially in an L-shape.
46 is inserted into a fitting hole 143b opened in the mounting plate 143. On the other hand, the fitting hole 143b of the mounting plate is mounted on the screwing plate 147 from the rear, and the fixing rod 146 is screwed to the screwing plate 147, thereby fixing the guide rod 145. As shown in FIG. 5, the guide rod 145 is disposed to be inclined in the rotation direction of the handling cylinder 20 to guide the grain stalk to the rear from the handling cylinder 20.

[0013] Then, as shown in FIG.
A swing sorting device C is disposed below the swing sorting device C.
Is to sort the first thing, the second thing, straw waste, etc. by the specific gravity sorting by the swing body 51 and the wind sorting by Karino 35, and the swing body 51 is made of synthetic resin to reduce the weight, It is easy to manufacture in a short time. The front end of the swing main body 51 is disposed below the front end of the handling cylinder 20, and the rear end of the swing main body 51 extends to below the rear of the dust outlet processing cylinder 21. A pivot shaft 52 is provided at a lower front portion of the swing main body 51, and a rear portion thereof is pivotally supported by a crankshaft 53, and swings by the rotation of the crankshaft 53. The swing body 51 integrally formed by using a synthetic resin has a Glen pan 58 formed at the front, and then a lower part is lowered by one step to form a bottom 59. A sorting air inlet is formed at the front of the bottom 59. 60
And bulges downward from the rear part of the bottom part 59 downward to form a bulged part 61, and the bulged part 61 has drop openings 67 and 68.
Are opened back and forth so that the mold can be removed during injection molding.

A rack 56 is placed on the upper surface of the Glen pan 58, and the wind from the pre-fan 41 introduced from the sorting wind inlet 60 passes between the rack 56 and the bottom 59, and falls on the chaff 55. The paddy to be transported is sorted by wind. Then, a sifting wire 70 is disposed at the rear of the rack 56 so as to protrude rearward, and then a plurality of chaff fins 54 are horizontally arranged at a lower portion thereof. 57
Is arranged.

Further, as shown in FIGS. 3 to 6, auxiliary members and reinforcing portions are formed at various portions of the swing main body 51 made of a synthetic resin to improve the sorting performance of the swing sorting and increase the rigidity. It is configured as follows. The rack 56 placed on the Glen pan 58 has groove portions 56a and 56
As a plate-like body formed with a large number of a, the upper surface of the rack 56 has a wavy shape, so that the paddy can be easily transported backward by swinging. The cross section of the Glen pan 58 is formed in triangular grooves 58a, 58a which are vertically symmetric with respect to the cross section of the rack 56.
6a and the opening of the groove 58a of the grain pan 58 are screwed together so as to overlap with each other, so that the cross-sectional area increases.
The rigidity of the front part of the swinging body 51 is increased. Further, a mounting stay 62 is provided between the left and right side surfaces of the swinging body 51 at a position in front of the sorting wind introduction port 60, and projects forward from the Glen pan 58 and extends to the front of the screen 70. At the same time as mounting the front part of the rack 56, the side surface of the front part of the swinging body 51 on which the link mechanism and pivot shaft of the swing wire 70 of the swinging body 51 described later are disposed is reinforced.

A rack 63 is placed on a bottom 59 extending forward from the lower surface of the sorting wind introduction port 60 of the swinging body 51 so that the chaff is transported to the chaff 55. Further, a pivot plate is formed so as to protrude downward from the left and right side surfaces of the front part of the bottom surface, and a pivot shaft is pivotally supported by the pivot plate. Further, ribs 64.6 long in the front-rear direction are provided at positions above the rack 63 on the side surfaces of the swing body 51.
5 is formed by projecting vertically upward and downward, and the swinging body 51 is formed.
The rigidity of the side is increased. And the upper and lower ribs 6
Holes are opened at regular intervals on the side surface between the positions 4.65, and in order to increase the rigidity of the opening, upper and lower ribs 64,65 are fitted with hat-shaped reinforcing members 66 from the sides. I agree. The reinforcing body 66 is a plate that is long in the front-rear direction,
As shown in the front sectional view of FIG. 6, the upper portion of the plate body is formed into a "U" shape in a front view, and the upper and lower ribs are fitted from the side to form a side surface of the swing body 51. Reinforcement is performed, and the pivotal support 66b projects below the covered portion 66a to cover the side surface of the main body.

The chaff section 55 includes a movable chaff 80.
The movable chaff 80 is disposed from the rear of the rack 63, the movable chaff 80 is disposed to the rear of the swing main body, and the fixed chaff 8 is provided at the rear of the swing main body 51.
5 are arranged. The movable chaff 80 is composed of chaff fins 54, 54... Which are plates arranged in the left-right direction. To the side plate,
The lower pin is slidably pivoted in the long hole of the side plate to be movable. That is, the chaff fin 54
A pair of a circular hole 81 for pivotally supporting the upper pin and a long hole 82 for slidably guiding the lower pin are provided on the side surface of the swinging body 51 to support 54. Are arranged as a set, and a substantially rhombus-shaped insertion hole 83 is opened in the set of side plates on the opposite side in the left-right direction. That is,
A set of circular holes 81, 81 ... and long holes 82, 82 ...
And the insertion holes 83 are arranged to face each other, and the circular holes 81
, And a pair of long holes 82, 82, and the insertion holes 83 are arranged continuously alternately on the left and right. The insertion hole 83
Has a substantially rhombic opening in a side view in a size that allows a pair of the circular hole 81 and the long hole 82 to be inserted.

Therefore, when assembling the chaff fins 54, one set of fins 54 is inserted from one side into the insertion holes 83.
And insert the inserted pin into the circular hole 81 on the other side.
And the ribs 6 inserted into the long holes 82 and
A hole which is the same as the axis of the circular hole 81 is opened in the pivotal support 66b at the lower part of the reinforcement 66 externally fitted to the 4.65, and the pin above the chaff fin 54 is pivotally supported. I have.
Further, a pin below the chaff fin 54 inserted in the elongated hole 82 and a pin below the chaff fin 54 fitted in the insertion hole 83 are pivotally supported by a connecting plate that is long in the front-rear direction.
By moving the connecting plate back and forth, all the chaff fins can be swung simultaneously.

The fixed chaff 85 is made up of left and right side plates 86, and fixed fins 87 arranged laterally between the side plates 86. ing. Swing the fixed chaff 85 to the swinging body 51
, The bolts are inserted from the side and the rear surface, and the fixed chaff 85 is arranged in accordance with the arrangement surface of the chaff fins 54, 54, and at the same time, the rigidity of the rear portion of the swinging body is increased. I have.

Also, the front upper part of the movable chaff 80 (the handling cylinder 20)
A connecting body 88 is provided horizontally below the rear part of the body. The connecting body 8
Reference numeral 8 denotes a connecting rod 89 and side support plates 90, 90 for supporting the left and right of the connecting rod 89. The side supporting plates 90, 90 are formed in a triangular shape, and the lower portions are formed of the ribs 64, 65. It is positioned in the middle position, screwed into the side surface of the swinging body 51, and horizontally connecting the connecting rod 89 between the left and right side support plates 90, 90, so that the center of the side of the swinging body 51 is The rigidity of the part is increased. Further, the position where the connecting body 88 is provided horizontally is a position where the amount of leakage from the handling cylinder 20 is small, and the sorting is not disturbed.
Further, on both left and right sides of a drop port 67 which is opened to the bulging portion 61 below the chaff portion 55 on the lower surface of the swinging body 51, elongated holes 91 having a shaft center in the left and right direction are formed. 91
-The sheave 57 is inserted into 91 and the fall opening 67 is covered, and is fixed using the pins 92. Further, a fixing plate 93 is laid laterally on the bottom surface of the main body at a position between the drop port 68 and the drop port 67 opened at the lower part of the fixed chuff 85 at the rear part of the Glen Sheave 57, and two rubber droops 94 and 95 are screwed together, and the rubber droop 94 on one side is extended on the falling tray 28 of the first conveyor, and the other rubber dripping 95 is extended on the falling tray 29 of the second conveyor and dropped. A rubber hang 96 is suspended from the front of the mouth 68 and extends on the falling board 29 of the second conveyor, and falls without spilling the paddy.

Then, as shown in FIGS. 5, 6, and 32,
An inclined portion 106 is formed so as to incline the lower front portion of the swing body 51 at the front of the dropping port 68, and ribs 107 project below the lower surface of the inclined portion 106. The swing mechanism 100 is fixed using the ribs. The swing mechanism 100
Is composed of a fixed plate 101, a fixed ring 102, a driven ring 103, a swing ring 104, and a crankshaft 105. The fixed plate 101 includes a swing body 51.
The fixed plate 10 is a plate body to be mounted on the upper surface of the inclined portion 106. The fixed plate 10 is formed with a screwing portion 101a which bends both ends of the fixed plate 101 upward and is screwed on the side surface of the main body 51.
1 has a hole 101 to be aligned with the axis of the rib 107
b · 101b, and the rib 1
07, the fixing bolt 111 is inserted into the fixing bolt 1
The fixed ring 102 is screwed at the lower part of the reference numeral 11. The fixed ring 102 has a rib 10 on its upper surface as shown in FIG.
Holes 102a, 102a having the same axis as 7 and 107 are opened, and a semicircular portion 102b having a semicircular shape in side view is formed on the lower surface of the fixed ring 102. The driven ring 103 has a semicircular portion 103a having a substantially semicircular shape in a side view, and a fitting portion 103b protrudes forward and downward at one end of the semicircular portion 103a, and a shaft hole is formed in the fitting portion 103b. 103c is open. As shown in FIGS. 10 and 11, a swing ring 104 is provided inside the driven ring 103. The swing ring 104 has a front ring 104a and a rear ring 104b opened in front and back, and is formed vertically into two parts. Further, a reinforcing plate is disposed on the side of the inclined portion 106 of the swing main body 51, and the fixed plate 101 and the side of the fixed ring 102 are screwed together to receive vibration caused by the swing. The rear part of the swinging main body 51 is reinforced.

With this configuration, the driven ring 103
Semi-circular portion 103a and semi-circular portion 102b of driven ring 103
The crankshaft 53 is inserted by this circle, and the swing shaft 108 is fitted to the fitting portion 103 of the driven ring 103. And the rear ring 10 of the swing link.
4b, the crank portion 53a of the crank shaft 53 is pivotally supported, the front ring 104a is pivotally supported by the swing shaft 108, and the swing shaft 108
The roller 109 is fitted to the end of the body, and is fitted to a guide body 110 fixed to the main body (machine body) shown in FIG.
When the crankshaft 53 swings, the swinging shaft 108 swings through the swinging ring 104, and the roller 10 of the swinging shaft 108
9 reciprocates along the guide body 110, thereby reciprocating the driven ring 103 fitted with the swing shaft 108, thereby reciprocating the front part of the swing main body 51 in the direction along the guide body 110. Thus, the swinging body 51 swings.

The sieving line 70 for guiding paddy and the like, which is disposed in the vicinity of the back of the grain pan 58 of the swing body 51, will be described. As shown in FIGS. 2, 7, and 8, the screen guide portion 71 pivotally supports the pivot shaft 72 on the side plate at a position behind the Glen pan 58 of the swinging body 51, and the pivot shaft 72 between the side plates. Are fixed on the upper surface. Are formed in a rod shape extending in the front-rear direction, fixed on the outer peripheral surface of the pivot shaft 72 at regular intervals in the left-right direction, and the rear ends of the respective wire lines 70, 70,. The portion extends to a position near the front of the chaff portion 55.

Further, the screen guide 71 is configured to swing. That is, as shown in FIGS. 7 and 8, an arm 74 is fixed to one end of the pivot shaft 72 pivotally supported at a position behind the Glen pan 58 of the swing body 51, and the front end of the arm 74 is The arm 74 extends to a position near the separation wind introduction port 60, and the swinging shaft 7 extends laterally from the front side surface of the arm 74.
5 are projected. On the other hand, an arc-shaped long hole 79 is formed on the side surface of the swing main body 51 at a position near the sorting wind introduction port 60.
The swing shaft 75 penetrates through the elongated hole 79, and a guide roller 76 is fitted to the end of the swing shaft 75. The guide roller 76 is fitted between two parallel plate bodies 77 'and 77' fixed to a side plate of the main body (body) that covers the side of the swing main body 51. doing. The left and right ends of a pivot shaft 72 for pivotally supporting the front part of the swing main body 51 are fitted to a guide body 77 'fixed to a side plate on the main body side. Then, the guide roller 76 is guided by the guide members 77 ′ and 77 ′ to move back and forth, and the position of the pivot shaft 72 and the guide roller 76 is changed, so that the arm 74 is rotated.
The screen guide 71 is also rotated at the same time, and the screen guide 71 is oscillated by the swing of the swing body 51, and swings and conveys the rice straw and the like dropped on the chaff 55 while sifting. However, it is also possible to eliminate the arm 74 and fix the pivot shaft 72. In this case, the swing of the swing body 51 causes the sift wires 70 to swing simultaneously.

Also, a straw rack 78 is provided in parallel with the plurality of wire lines 70, 70,.
Can also be arranged. As shown in FIG. 8, the straw rack 78 is formed as a long plate in the front-rear direction.
2 and the upper surface of the plate-like body is formed in a sawtooth shape to form a straw rack 78, and the rice straw to be fed onto the chaff 55 is guided backward by the sawtooth-shaped straw rack 78. Also, the straw racks 78, 78...
Are alternately arranged between the sieving lines 70, 70 ...
The straw racks 78, 78,... Can be arranged every several of the plurality of screened wires 70, 70,. Therefore, the fine rice straw is dropped from the screen guide portion 71 and is transported rearward on the wind introduced from the introduction port 60. By transporting the fine rice straw to the rear, the rice straw is not mixed in the first thing, and the efficiency of the specific gravity sorting is enhanced by the chaff portion 55.

The karano 35, which performs the wind sorting of the swing sorting apparatus C, is disposed below the front part of the swing body 51 (below the position between the sorting wind inlet 60 and the start end of the grain sieve 57). A first conveyor 22 for transporting fine granules and a second conveyor 23 for transporting a second product are arranged in the rear of the Karino 35 in order. In addition, a pre-fan 41 that blows air to the sorting wind inlet 60 of the swinging body 51 is provided in front of the Karino 35.

Next, the configuration of the Karino 35 and the pre-fan 41 will be described. As shown in FIG. 9, the Karamin 35 has a rotating shaft 236 having a shaft center in the left-right direction and the rotating shaft 2.
The blade body 238.2 protruding radially from the radial direction 36
.., And a front guide plate 239 covers the front of the rotation of the Karino 35, a lower guide plate 240 in an arc shape in a side view, and an upper guide plate 234 above. doing. The side of Karino 35 is open,
Is supported by a pivot plate 227 fixed to the side. The opening is separated into upper and lower suction ports 35 a and 35 b by the pivot plate 227, and the air introduced from the opening is separated from the front guide plate 23 of the lower guide plate 240.
9, generates a wind, and sends a sorted wind to the rear of the Karino 35 along the upper guide plate 234, so that the swing body 5
Air is blown between the first grain sieve 57, the first conveyor 22 and the second conveyor 23 so that the air can be sorted.

As shown in FIG. 9, the pre-fan 41 comprises a fan shaft 242 and blades 244 projecting radially from the fan shaft 242. The pre-fan 41 has side plates 249. It is located between. That is, a circular suction port 249a is opened in the side plate 249,
At the upper and lower central portions of the suction port 249a, a substantially "U" -shaped pivot plate 246 is fixedly mounted in a side view.
6, the fan shaft 242 is pivotally supported. Further, the front and lower surfaces of the pre-fan 41 are covered using a guide body 245 having an arc shape in a side view, and the rotation of the pre-fan 41 sucks air from the suction port 249 a, thereby sorting the rear and lower portions of the Glen pan 58. The air is blown from the wind inlet 60 so that the wind can be sorted. Further, the pre-fan 4
1, a suction port is opened in the upper front part of the guide plate 245, and the suction guide plate protrudes tangentially from above the guide plate 245 below the suction port, so that exhaust air from the engine E can be introduced into the inside of the pre-fan 41. Make up. 12, a pulley 267 is fixed to the end of the rotating shaft 242 of the pre-fan 41, and a pulley 268 is fixed to the end of the rotating shaft 236 of the Karin 35. A pulley 269 is fixed to the conveyor shaft 273, and a pulley 267 of the pre-fan 41 and a pulley 268 of
A guide pulley 272 is pivotally supported above the intermediate position, and a tension pulley 271 is pivotally supported at an end of a bearing of the drive shaft 261 via an arm. And the drive shaft 2
And pulleys 266 fixed to the side end portions of the pulleys 61 and the respective pulleys 266, 267, 268, 269, 271-2.
The belt 270 is wound around 72, and the contact area between the pulleys 267 and 268 and the belt 270 is increased by the guide pulley 272 so as to rotate in the same direction. The belt 2 is moved by the tension pulley 271.
70, the rotation of the drive shaft 261
1, Karino 35, and the first conveyor 22 are rotated and driven.

As described above, the Karino 35 and the pre-fan 41 are configured so that air can be sucked from the side, and the suction amount adjusting mechanism K for adjusting the suction amount is arranged. The suction amount adjusting mechanism K is, as shown in FIG.
9, the first resistance plate 278 covering the lower part of the suction port 249a.
A second resistance plate 279 for covering the suction port 35a on the side of the Karino 35, arms 276 and 277 for fixing the resistance plates 278 and 279, and a horizontal shaft 275 for pivotally supporting the arms 276 and 277. Have been. That is, the horizontal axis 275
Are projected laterally from the front support column 25, the front arm 276 is pivotally supported by the horizontal shaft 275, and a first resistance plate 278 is fixed to the front end of the front arm 276. The first resistance plate 278 is
The suction port 249a below the pivot plate 46 is formed in a substantially crescent shape so that it can be covered. The horizontal axis 2
A rear arm 277 which rotates integrally with the front arm 276 behind the pivot 75 is pivotally supported, and a second resistance plate 279 is fixed to a rear portion of the rear arm 277. The second resistance plate 279 is formed in a trapezoidal shape when viewed from the side, and the pivot plate 22 on the side of Karino 35 is formed.
The upper suction port 35a can be covered.

The rear arm 277 and the front support column 25
The spring 280 is locked between the center of the rear arm 277 and the rear arm 277.
Of the pre-fan 41 is closed by the first resistance plate 278 fixed to the front arm 276 and the rear arm 277 so that the lower part of the suction port 249a of the pre-fan 41 is closed. The mouth 35a is closed, and a wire 281 is fastened in the middle of the forearm 276. The wire 281 is supported by an outer case 282 fixed below the front support column 25, and The other end of 281 is the chaff fins 54
... is connected to the inclination angle changing mechanism. Therefore,
When the transport amount of the cereal stem increases and the wire 281 is pulled, the forearm 276 and the rear arm 277 rotate against the spring 280 and rotate as shown by the two-dot chain line in FIG.
8, the second resistance plate 279 is rotated upward, and the suction port 249a and the suction port 35a are opened in the opening direction to increase the amount of air flowing into the fan 41 and Karino 35, thereby increasing the air volume. Sorting can be performed on a large number of grains. Conversely, when the amount of cereal stem decreases, the wire 281 is returned,
The suction port 249a and the suction port 35a are rotated in the closing direction to reduce the amount of inflow air and prevent the fine particles from being discharged. However, the other end of the wire 281 is connected to the operation unit 19.
To manually change the air volume by connecting to the lever
The end of the wire 281 may be connected to an actuator, and the actuator may be connected to a grain amount sensor to change according to the grain. Further, a plurality of fastening holes 276a, 276b, 276c are provided at intermediate positions of the arm 276.
And a fastening hole 276 a for fastening the wire 281.
By selecting 276b / 276c, the suction port 24
By increasing the opening amount of the suction port 9a and the suction port 35a, the inflow air amount can be adjusted. Therefore, the optimal sorting wind is sent to the inside of the swinging body 51 of the swinging sorting apparatus C in accordance with the amount of paddy, and the sorting performance is improved by the swinging body 51, and the first and second objects and the dust are removed. And so on.

As described above, the first product after being sorted by the rocking sorting device C falls on the flow tray 28 of the first conveyor 22 and is directed to the side of the threshing device B via the fry conveyor 13. The second product is stored in the arranged Glen tank 12, and the second product falls on the falling plate 29 of the second conveyor 23, and the crimping net 31 of the crimping net 31 disposed above the rocking sorting device C by the second reduction conveyor (not shown). The dust is returned to the front portion and sorted again, and the dust and the like are sucked by the exhaust fan 30 and discharged from the rear.

Referring to FIGS. 13 to 15, a support structure of the above-mentioned fried conveyor 13 will be described. The aforementioned conveyor 1
Numeral 3 has a screw 301 fitted therein and rotates the screw 301 to convey the first object conveyed from the first conveyor 22 upward. The lower end of the fried conveyor 13 is connected to the end position of the first conveyor 22. The first conveyor 22 is disposed at a position substantially rearward of the center of the Glen tank 12 in the front-rear direction in a side view shown in FIG. doing. A blade 302 is disposed on the same axis as the screw 301 at the upper end of the fry conveyor 13, and the blade 302 is covered by using an upper tube 303, and an outlet of the upper tube 303 is provided. Are arranged in accordance with the inlet 314 of the Glen tank 12 and are connected between the outlet of the upper cylinder 303 and the inlet 314 by using a bellows pipe 305, so that there is no leakage inside the Glen tank 12. When the paddy is put in and the Glen tank 12 is rotated, it can be opened only by removing the bellows pipe 305. An auger support frame 307 is provided at the rear of the Glen tank 12 above the fuselage frame, and a support metal 308 for rotatably supporting a vertical conveyor of the auger is fixed to the upper right side of the auger support frame 307. And the rear frame 30 on the upper left side of the auger support frame 307.
9, and supports the auger support frame 307. Further, in the rear view, the reinforcing stay 310 is projected obliquely upward and rightward from the body frame at the rearmost position of the terminal end of the conveyor 22, and the upper end of the reinforcing stay 310 is fixed to the main body rear frame 309, and the main body rear frame 309 is fixed.
Has been strengthened. The reinforcing stay 310 has a lower portion bent forward in a side view, and
It is designed to respond to a load of 09 in the front-rear direction.

A fixed body 311 is fixedly mounted on the front surface of the rear frame 309 in the middle of the right and left sides.
A substantially U-shaped arm 312 in a plan view is projected forward and upward from 1, and a fitting body 313 is fixed inside with the open surface of the arm 312 facing forward and upward. The fitting body 313 is
It is shaped like a letter, and supports the middle part of the cylindrical portion of the fried conveyor 13. Since the fitting body 313 is disposed at the rear upper position in the front-rear direction with respect to the position of the first conveyor 22 in the side view shown in FIG. , Reinforcing stays for the conveyor 13
It is stably supported by the main body rear frame 309 reinforced by zero. Thus, the Glen tank 1
On the left side, a part of the rear part of the Glen tank 12 where the fry conveyor 13 is disposed is concavely formed with a concave part 12a, and a bulging part 12b is formed from the front part to the central part of the Glen tank 12. , The internal capacity of the Glen tank 12 is increased.

As shown in FIGS. 16 and 17, a groove 12b is formed in a concave shape on the front right side of the Glen tank 12, and an auger rest 320 is disposed in the groove 12b. Is stored just above the Glen tank 12 at a low height. As shown in FIGS. 25 and 26, the auger rest 320 includes a holding body 321 curved in a U-shape, and a fixing plate 322 for fixing the holding body 321.
A fixing plate 322 is erected on the upper surface of the Glen tank 12, a holding member 321 bent in a U-shape is fixed on the fixing plate 322, and an upper end portion of the holding member 321 is bent inward. When the discharge auger 265 is placed, it does not shift laterally. Further, the discharge auger 26
A discharge port 325 is formed below the tip of the nozzle 5. The outlet 325 is formed on the side of the box whose lower surface is open, and left and right guide plates 326 and 327 shown in FIGS. 18 and 19 are fixed to the lower part of the outlet 325. Left guide plate 326
Has the front and rear ends bent rightward to cover the lower left side of the discharge port 325. Similarly, the right guide plate 327 covers the lower part on the right side of the discharge port, and bends the front and rear ends of the guide plate to the left to cover the lower right side of the discharge port 325. It is arranged to extend and protects the screw.

The exhaust fan 30 is mounted on a cover 403 as shown in FIG. 2 and is supported by a frame 402 provided at a position above the rear part of the swinging body 51 to remove the exhaust air sucking the straw chips. The air is blown, and the straw is conveyed along the guide plate 401 into the straw processing chamber where the straw cutter device 17 is disposed. The exhaust fan 30 will be described with reference to FIGS. Each component of the exhaust fan 30 is made of synthetic resin to reduce the weight,
As shown, a plurality of fins 436, 436,.
, And disk-shaped support plates 438, 438, 438 for supporting the left and right ends and the center of the fins 436, 436.
And the distance between the left and right support plates 438 and the fan shaft 43
7 and a fixing plate 440 which is disposed on one side of the support plate 438 and engages and fixes each fin 436.

The support plate 438 is formed in a disk shape, and has the same radii as the fin holes 4 corresponding to the cross-sectional shape of the fins 436.
Are opened substantially in the radial direction, and a boss 4 for fitting a fan shaft 437 is provided at the center of the support plate 438.
38b, the fan shaft 437 is inserted with a polygonal cross section (hexagon in this embodiment). At the left and right ends of the boss 438b, fitting portions 438c, 438c for fitting the guide cylinder 439 are formed. In addition,
Holes 438e and 4 for fixing a fixing plate 440, which will be described later, at a predetermined angular position are provided on the side surface of the support plate 438 disposed on the left side.
An opening 38e is formed, and a fitting portion 438c is formed on only one side of the boss portion 438b of the support plate 438 disposed on the right side.

The fins 436, 436,... Are band-shaped plates formed in a substantially crescent shape in a side sectional view.
a, and a groove 4 is formed in the center of the other side of the fin 436.
36b is formed, and can be engaged with the convex portion 440b of the fixing plate 440. The fixing plate 440 is formed in a gear shape in a side view, and the same number of convex portions 440b, 440b,.
Is formed so as to engage with the groove portion 436b, screw holes 440a are opened on the side surface, and the boss portion 4 is formed at the center.
A hole that loosely fits into the outer peripheral surface of 38b is opened. Further, the guide cylinder 439 is formed in a tubular shape, and both ends thereof are formed so as to be able to fit into the fitting portions 438d of the left and right boss portions 438b.

In order to assemble each member formed of a synthetic resin having such a structure, the supporting plates 438, 438, 4
Guide tube 439 between the boss portions 438b
And the support plate 4 on one side (the right side in this embodiment).
The fins 436 are inserted through the fin holes 438a of the first and second support plates 438.
38a. At this time, as shown in FIG. 4, the concave portion between the convex portion 440b of the fixed plate 440 fitted to the boss portion 438b inside the left support plate 438 is located in the fin hole 438a, and the fin 436 supports the fin 436. Board 43
8 can be inserted into the fin hole 438a. And
When the head 436a of the fin 436 is inserted to a position where it contacts the side surface of the right support plate 438, the groove 43 of the fin 436 is inserted.
6b coincides with the outer peripheral position of the fixing plate 440, and here, the fixing plate 440 is rotated so that the convex portion 44 as shown by the two-dot chain line in FIG.
0b is engaged with the groove 436b so that the fin 436 does not come off in the left-right direction, and the screwing hole 440a of the fixing plate 440 is formed.
And the axis of the hole 438e of the support plate 438,
By screwing and fixing using a nut, the exhaust fan 30 can be easily assembled without performing welding work.

[0039]

The fan shaft 437 is inserted into the boss portion 438b of the support plate 438, and the fan shaft 437 is pivotally supported by a guide body 442 which covers the left and right side surfaces of the fan 30. A ring-shaped body 443 is fixedly provided on a side surface of the guide body 442 where the outer periphery of the fan 30 is located.
The body 443 is provided with a step, and this step is
6 is disposed so as to overlap with the outer ends of both ends, and serves as a scraper to prevent foreign matter from entering the pivot portion of the fan shaft 437.

Next, the support structure of the feed chain 7 will be described with reference to FIGS. The front end of the feed chain 7 is wound around a driving sprocket 160 arranged on the front side of the handling cylinder 20, and the rear end of the feed chain 7 is wound around a driven sprocket 161 arranged on a side of the exhaust fan 30, The upper surface of the feed chain 7 has a chain guide 162 and an upper guide 163 as guide members.
Supported by These guide members 162.1
63, drive sprocket 160, driven sprocket 16
1 is configured to be supported by an open frame W. The open frame W is provided on the upper support frame 1
64 and the lower support frame 165 are vertically arranged in parallel,
A connecting member is fixed at an appropriate position in the front-rear direction between the upper support frame 164 and the lower supporting frame 165, and the side cover 170 is fixed to the connecting member.

At the rear end of the open frame W, a connecting frame 171 is fixed in the vertical direction.
Pivot pins 172 are fixedly provided at the upper and lower positions of 71. A pivot column 174 is erected at the rear portion of the side of the fuselage, and pivot members 175, 175 are fixed to the upper and lower positions of the pivot column 174, and pivot pins 172, 175 are attached to the pivot members 175, 175. 172
And the open frame W constitutes a pivot point.
Further, an arm body 177 protrudes forward from an upper end of the connection frame 171, an upper guide 163 is fixed to a front end of the arm body 177, and an arm body 178 is fixed to a front part of the open frame W. The arm body 178 is projected forward and upward, and a chain guide 162 is fixed to the front end of the arm body 178.

A connecting member is provided in the front and rear portions of the open frame W. The connecting member includes a front connecting column 167, a middle connecting column 168, and a rear connecting column 169, which are three column members. , The front connecting column 167 and the middle connecting column 16 in this order from the front side.
8. Arranged on the rear connecting post 169. Further, the front connection pillar 167 and the middle connection pillar 168 connect the upper support frame 164 and the lower support frame 165, and the front connection pillar 167 and the middle connection pillar project upward from the upper support frame. Mounting portions 167a and 168a are formed at upper ends of the front connection pillar 167 and the middle connection pillar 168 which are shorter than the middle connection pillar 168 and which are inclined as seen from the front in FIG. Further, the rear connecting post 169 protrudes above the upper support frame 164, has the same height as the middle connecting post 168, and forms an inclined mounting portion 168a at the upper end of the middle connecting post. On the other hand, the crimp net 3 provided on the lower surface of the handling cylinder 20
1 is the front and rear and the Glen tank 1 by the support frame 132.
Two sides are fixed. An outer side surface of the support frame 132 is fixedly provided with a net holding plate 179. The net holding plate 179 is formed in an arc shape as viewed from the front as shown in FIG. 3, and the side of the net holding plate 179 is formed as shown in the side view of FIG.
The front and the rear are formed in accordance with the shape of the upper surface of the feed chain 7, and the mounting portions 167 of the connecting columns 167, 168 and 169 are formed.
a, 168a and 169a.

Next, the straw conveying device 16 is shown in FIG.
As shown in FIG. 27, the straw chain 32 and the auxiliary chain 4
5, the straw chain 32 and the auxiliary chain 4
The rear of 5 is directed toward the center. The straw chain 3
2 is supported by a support frame 533,
An input sprocket 534 is provided at the front end of the shaft 33, and a driven sprocket 536 is pivotally supported at the rear. At the rear of the straw chain 32, a pivot pipe 537 protrudes laterally, and a transmission shaft 538 is pivotally supported inside the pivot pipe 537.
A transmission sprocket 53 is attached to the end of the
9 and the transmission sprocket 539, the input sprocket 534, and the driven sprocket 536
0 is wound. Also, the input sprocket 534
Is fitted with an input shaft 542, and a bevel gear 584 described later is fitted to an end of the input shaft 542, and transmits power to the straw chain 32.

The auxiliary chain 45 is shown in FIGS.
It is configured as shown in FIG. The front part of the auxiliary chain 45 is fixed to a stay 546 projecting sideward from the front part of the support frame 533 of the straw chain 32.
The rear portion is fixed to the other end of the pivot pipe 537, and the left and right sides are covered by covers 547 and 547. The pivot pipe 5
The other end of the transmission shaft 538 inside 37 is inserted into the auxiliary chain 45 and the transmission sprocket 548 is fitted to transmit power to the auxiliary chain 45. A driven sprocket 550 is disposed at the front of the auxiliary chain 45 so as to be slidable in the front-rear direction.
A chain 549 is wound between the transmission sprocket 548 and a plurality of tines 56 on the outer peripheral surface of the chain 549.
., 560...

Next, as shown in FIG. 11, a drive pulley 580 is fitted to the rear portion of the drive shaft 136 of the handling drum 20 in the threshing apparatus B, as shown in FIG.
Counter shaft 5 disposed on the side of the driving pulley 580
A belt 583 is wound around a transmission pulley 582 fitted to the front portion of the motor 81 to transmit power. A bevel gear 584 is fitted to the rear end of the counter shaft 581, and the input shaft 542 of the straw chain 32 is driven via the bevel gear 584.

Then, as shown in FIG.
The tension of the belt 583 wound between the drive pulley 580 disposed on the drive shaft 136 and the transmission pulley 582 fitted on the counter shaft 581 is linked via an interlocking mechanism interlocking with the open cover 586 on which the handling cylinder 20 is mounted. The tension is turned on and off. That is, as shown in FIG. 3, a tension arm 587 is pivotally supported on the drive shaft 136, a tension roller 588 is pivotally supported on the end of the tension arm 587, and a connecting plate 589 is fixed on the base side of the tension arm 587. Has been established. On the other hand, the support shaft 590 of the open cover 586 rotates integrally with the cover, and an interlocking mechanism is fixed to the support shaft 590. A left and right swing arm 591 is fitted to the support shaft 590, and a laterally protruding connecting rod 59 is attached to an end of the left and right swing arm 591.
2 is pivoted. At the end of the connecting rod 592, an L-shaped arm 593 is formed by pivotally supporting the ends of the two arms 593a and 593b on a pivot 594 to form an L-shape when viewed from the rear. . One arm 593a of the L-shaped arm 593
Is pivotally supported by a connecting rod 592, and a spring 595 is locked at the end of the other arm 593b.
5 is locked to the connecting plate 589, the tension arm 587 is rotated about the drive shaft 136, and the tension arm 587 is in contact with the substantially central portion of the belt 583 by the tension roller 588. Therefore, when the open cover 586 is turned upward, the left and right swing arm 591 is turned to the left, the connecting rod 592 is moved to the left, and the L-shaped arm 593 is moved as shown by a two-dot chain line in FIG. By rotating the transmission pulley 582, the urging force of the spring 595 is reduced, the tension to the belt 583 is eliminated by the tension roller 588, and the transmission pulley 582
The belt 583 to be wound idles, and the power transmission to the straw processing device 16 is cut off.

As shown in FIG. 29, the straw processing device 16 is disposed above the straw cutter chamber 600, and the upper portion of the straw processing device 16 is covered by an upper cover. At the top of the straw cutter chamber 600 is a charging gutter 601.
Is formed, and a straw guide section 6 is provided in front of the input gutter 601.
02, the guide rod 603 of the straw guide section 602 is directed to the rear right side along the straw chain 32, and the middle part of the straw guide section 602 is passed through the upper part of the input gutter 601. The rear end extends to the rear of the fuselage.

As shown in FIG. 30, the straw guide section 602 includes an L-shaped guide rod 603 and a guide rod 6.
03 is slidably fitted to the fitting tube 604,
4 comprises a fixed plate 605 erected, a rotating body 606 fitted externally below the guide bar 603, and a link arm 607 for rotating the rotating body 606. That is, the fixing plate 605 protrudes rearward in the horizontal direction at the upper portion to form the mounting portion 608, and the fitting cylinder 604 is provided on the mounting portion 608.
Is placed. The fitting cylinder 604 is a cylinder having a shaft center in a vertical direction, and a pin 609 is inserted from a side portion of the fitting cylinder 604. The guide rod 603 bent to the L-shaped side
Is inserted into the fitting cylinder 604, and a spiral groove 604a is formed on the inserted side. The pin 609 is engaged with the groove 604a, and the lower end of the guide bar 603 protrudes downward from the mounting portion 608, and is fitted to the upper portion of a rotating body formed in a cylindrical shape at the lower end. A pin 609 protrudes from the outer peripheral surface of the rotating body 606. On the other hand, a fulcrum shaft 610 protrudes rearward from the side of the fixed plate 605, one end of the link arm 607 is pivotally supported on the fulcrum shaft 610, and a fastening plate 611 protrudes below a middle portion of the link arm 607. A wire 612 and a spring 613 are engaged with the lower end of the fastening plate 611. The other end of the spring 613 is engaged with the mounting portion 608 to urge the link arm 607 to rotate upward, and the wire 612 is operated by a lever (not shown) provided in the operating portion to link arm. 607 is rotated downward. The other end of the link arm 607 is formed in a rod shape, and the pin of the link arm 607 is used to hold a pin 614 protruding from the rotating body 606.

In this way, when the straw is released into the field without cutting, or when the straw is bound using the binding device,
The guide rod 603 of the straw guide section 602 is arranged along the lower surface of the straw chain 32. Then, by operating the lever and pulling the wire 612, the link arm 6
07 is rotated downward, the rotating body 606 is moved downward, and simultaneously the pin 614 of the link arm 607 is rotated by the length L. When the rotating body 606 is rotated while being moved downward, the guide rod 603 also slides downward and rotates the groove 604a along the pin 609.
The guide bar 603 is housed in the left-right direction while moving the other end of the guide bar 603 below the lower surface of the straw chain 32. When the guide rod 603 of the straw guide section 602 is stored, the straw held by the straw chain 32 is moved along the input gutter 601 into the straw cutter chamber 60.
0, and the straw is cut using the straw cutter device 17.

[0051]

As described above, the present invention has the following effects. That is, by configuring the net holding plate supporting the side of the crimping net on the open frame supporting the feed chain, when stopping the combine and performing maintenance,
Since the crimp net can be cantilevered, the open frame can be pivoted outward. When a large amount of thresh after threshing is caught on the crimp net, the crimp net can be pulled out for easy maintenance. Also,
The net holding plate is placed and fixed on the open frame to support the entire periphery of the crimp net, thereby preventing deformation due to bending, and reliably sorting large straw chips after threshing.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a side sectional view of a threshing / sorting device.

FIG. 3 is a perspective view of a swing main body formed of resin.

FIG. 4 is a side view and a partial cross-sectional view of the swing body.

FIG. 5 is a side view showing a pivotal support structure of a crankshaft of the swing main body.

FIG. 6 is a bottom view showing the pivot structure of the Kunk shaft.

FIG. 7 is a partial side view of a swing main body provided with a swingable screen wire.

FIG. 8 is a partial plan view of a swing main body in which a swing configuration of a sieve wire is provided.

FIG. 9 is a side view of Karino and a pre-fan arranged in the swing sorting device.

FIG. 10 is a side view showing a suction amount adjusting mechanism.

FIG. 11 is a skeleton diagram showing a configuration for transmitting power to a threshing and swing sorting device.

FIG. 12 is a partial side view showing power transmission to Karino and a pre-fan.

FIG. 13 is a side view showing a support structure of a fried conveyor arranged on the side of the Glen tank.

FIG. 14 is a rear view showing the supporting structure of the fry conveyor.

FIG. 15 is a plan view showing a support structure of the fry conveyor.

FIG. 16 is a right side view showing an augerrest provided on the front side of the Glen tank.

FIG. 17 is a left side view showing the augerrest.

FIG. 18 is a partial cross-sectional side view showing a discharge port of a discharge auger disposed on a guide body.

FIG. 19 is a front view showing a discharge auger provided with a guide body.

FIG. 20 is a front sectional view of the exhaust fan.

FIG. 21 is a side sectional view of the exhaust fan.

FIG. 22 is a front view, partly in section, showing a net holding plate placed on an open frame.

FIG. 23 is a partial side view showing a configuration for supporting Karino.

FIG. 24 is a rear view showing the rear part of the threshing apparatus.

FIG. 25 is a side view showing an open frame supporting the feed chain.

FIG. 26 is a plan view, partly in section, showing the straw conveying device.

FIG. 27 is a side view, partly in section, showing an auxiliary chain;

FIG. 28 is a partial rear view showing the configuration for transmitting power to the straw chain.

FIG. 29 is a partial side view showing the rear part of the aircraft.

FIG. 30 is a rear cross-sectional view partially showing a support structure of the straw discharge guide rod.

FIG. 31 is a perspective view showing a configuration for supporting a guide rod of the threshing apparatus.

FIG. 32 is an assembled perspective view of a swing mechanism of the swing main body.

FIG. 33 is a partial perspective view showing a swing drive link of the swing body.

FIG. 34 is a sectional view of the same.

[Explanation of symbols]

 B Threshing device W Open frame 7 Feed chain 20 Handling cylinder 31 Crimp net 79 Net holding plate

Continued on the front page (72) Inventor Kanta Kusachi 428 Enami, Okayama City

Claims (1)

[Claims] An open frame supports a feed chain for nipping and transporting a grain culm in a threshing device, and is disposed so as to be openable by turning laterally with a rear portion of the open frame as a fulcrum. A support frame for a feed chain, wherein a net holding plate fixed to a side end of a crimp net is placed on an upper end of a connecting member constituting the feed chain.