JPH0870690A - Combine harvester - Google Patents

Abstract

PURPOSE: To improve diffusion of a horizontal rotator for diffusing discharged dust installed at the rear of a threshing part. CONSTITUTION: In a combine harvester equipped with rocking and selecting discs 31 and 32 for selecting threshed granule materials below a threshing chamber 27 in a threshing part 4, a horizontal rotator 94 for diffusing discharged dust, lapped longitudinally on the rear of the threshing part 4 in a side view is installed below a dust discharging port 29 at the rear of the threshing chamber 27. A dust discharging guide plate 104 is set from the end of the rocking and selecting plate 32 to the top of the rotator 94.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine in which grains, such as rice, wheat and soybeans, which have been threshed in a handling room, are swing-sorted by a swing sorting disc below the grain.

[0002]

2. Description of the Related Art There is one in which a rotary member for diffusing dust is provided at a third opening on the rear side of an oscillating sorting board in a threshing section.

[0003]

However, when a rotating body for diffusing dust is provided at such a third port, the dust can be surely diffused from the rocking sorting board. However, there is a problem that not all the dust discharged from the handling chamber is necessarily supplied to the rotating body, and a sufficient diffusion effect cannot be obtained.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention is a combiner equipped with an oscillating sorter for selecting shattered matter in the lower part of the handling chamber in the threshing section, and the side view threshing is provided below the dust outlet on the rear side of the handling chamber. The rear side of the part is provided with a horizontal rotary body for dust diffusion that is wrapped back and forth, and a dust guide plate is provided above the rotary body from the end of the swing sorting board. Any dust discharged from any of them can be properly dropped into the rotating body so that the dust can be uniformly diffused to the rear of the machine body.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a cross-sectional explanatory view of the threshing unit, FIG. 2 is a side view of the combine as a whole, and FIG. 3 is a plan view thereof. In the figure, (1) is a machine frame equipped with a traveling crawler (2) on a track frame (3). , (4) is equipped with an axial flow screw type handling cylinder (5), a sorting mechanism (6), etc. and is mounted on the machine stand (1) for a threshing section, and (7) is a lifting barrel (8). A grain tank for accumulating grains of the threshing unit (4) to be taken out through, (9) a mowing unit which is installed in the lower front of the threshing unit (4) so as to be able to move up and down via a hydraulic cylinder (10), (11) Is a driving cabin provided with a driver's seat (12) and a driving operation unit (13) and arranged in front of the grain tank (7), and (14) is provided behind the grain tank (7) and has an engine (15). ) Is installed in the engine section, and (16) is an upper-grain exporter for removing the grains in the grain tank (7). It is.

The mowing section (9) connects the grain mowing header (17) for receiving the uncut grain culm to the rear center of the header (17) so that the mowing grain culm is threshing section (4). And a reel house (19) for scraping uncut grain, a reciprocating drive type cutting blade (20), and an auger (21) for scraping grain culm, which are configured by a feeder house (18) for feeding to the grain header. In preparation for (17), the header (1
The cut culm to be taken into 7) is sent to the threshing unit (4) through the supply chain conveyor (22) provided in the feeder house (18) to perform the threshing process.

A second reducing cylinder (23) is provided on the outer right side of the threshing section (4) so that the second processed product is returned to the sorting mechanism (6) for re-sorting. .

Further, as shown in FIG. 1, the screw type handling cylinder (5) comprises a cylindrical body (24) having a length substantially equal to the longitudinal length of the threshing section (4) and an outer periphery of the body (24). The screw-shaped handling cylinder (5) is provided with a spiral-shaped screw blade (25) wound around the body and erected in a radial manner, and a dust projection (26) provided on the outer periphery of the rear end of the body (24). ) Is axially supported in the longitudinal direction of the machine body, and the front end of the handling cylinder (5) is provided so as to face the front inlet of the handling room (27) communicating with the feeder house (18). ) The rear end of the handling cylinder (5) faces the rear dust outlet (29), and the net (3) is provided below the handling barrel (5) excluding the dust outlet (29).
0) is stretched and all the cut grain culms are added from the feeder house (18) to thresh.

Furthermore, front and rear rocking sorters (31) and (32) constituting the above-mentioned sorter mechanism (6) are provided, and the swinging links (33) (34) and the arm (35) are provided in the front-rear direction. A feed pan (36) which is driven to swing the front and rear sorting discs (31) (32) and is positioned below the front part of the handling cylinder (5), and a first chaff sheave (37) whose grain leakage amount is adjustable. , A gren sieve (38) provided below the chaff sheave (37) is provided on the front sorting board (31), and a second chaff sheave (39) connected to the rear side of the chaff sheave (37) and the first and second streams. Plate (40) (4
1) and 1) are provided on the rear swing sorting disc (32).

The first and second air passages (42) are provided below the first chaff sheave (37) and the Glen sheave (38).
Kara Minoh fan (44) that supplies selection wind through (43)
And the first gutter (45) and the first conveyor (4) that receive the grain from the grain sieve (38) and send it to the fried cylinder (8).
6), the second gutter (47) and the second conveyor (48) for sending the reduced products from the second flow grain board (41) to the second reduction cylinder (23), and the rear end of the chaff sheave (39). And a third mouth (49) to face it so that the grain of the first gutter (45) is delivered to the tank (7) and the reduced product of the second gutter (47) is delivered to the feed pan (36). are doing.

As shown in FIGS. 4, 10 and 11, the output shaft (15a) of the engine (15) is connected to the counter shaft (5).
0) and the output pulleys (51a) (51b) for threshing and running, which are fixedly connected to the counter shaft (50).
Via the transmission belts (56) (57) to the input pulley (53) of the threshing input shaft (52) and the input pulley (55) of the input shaft (54a) of the traveling continuously variable transmission (HST) (54). The threshing unit (4) and the traveling crawler (2) are driven in an interlocking manner.

The threshing input shaft (52) is interlockingly connected to the handling barrel counter shaft (58) via a reduction gear train (59), and the sprocket of the handling barrel shaft (5a) of the handling barrel (5). The sprocket (62) of the counter shaft (58) is interlockingly connected to the (60) via the chain (61) so that the handling cylinder (5) can be driven in two high and low stages.

Further, a threshing drive shaft (65) horizontally extending laterally below the rear end of the barrel shaft (5a) through a bevel gear (64) on a threshing counter shaft (63) on the right rear side of the threshing unit (4). ) Is linked to the right end of the left side plate (4)
A drive sprocket (6) having a torque limiter (66) on the threshing drive shaft (65) projecting to the left outside of a).
7) is attached, and the swing drive shaft (68) of the swing selection mechanism (6) and the conveyor shaft (48) of the second conveyor (48).
Swing and second sprocket (69) to be attached to a)
The sprocket (67) is interlockingly connected to (70) via a transmission chain (71).

Furthermore, the second conveyor shaft (48
a) Transmission chain (73) on the sprocket (72) at the left end
Through the leftmost sprocket (74) of the conveyor shaft (46a) of the first conveyor (46) and the conveyor shaft (48a).
At the right end of a), the second reduction cylinder (2
The reduction conveyor shaft (23a) of 3) is interlockingly connected to each other, and is disposed between the conveyor shafts (46a) and (48a) to form a fan drive shaft (77) that meshes the sprocket (76) with the chain (73). The Toransu fan (44) is interlockingly connected through a transmission belt (78).

As shown in FIG. 9, the torque limiter (6
6) supports the sprocket (67) in an idling manner on a sprocket receiving shaft (79) key-fitted to the threshing drive shaft (65),
The left and right friction plates (8
Presser plates (82) (83) that make sliding contact with (0) (81) are integrally attached to each shaft (79) (65), and the leaf spring (84) can be freely adjusted to the left and right friction plates (80). When a nut (85) to be crimped to is coupled to a receiving shaft (79) and the sprocket (67) is sandwiched between the left and right friction plates (80) (81) by the leaf spring (84) from both sides, a threshing drive shaft While the sprocket (67) is rotated integrally with the (65), and when the torque transmitted by the torque limiter (66) exceeds a certain level, the sprocket (69) and the friction plate (8) are rotated.
The frictional connection between 0) and (81) is released to interrupt the transmission.

Further, flanges (67a) integrally covering the outer peripheral surfaces of the friction plates (80) (81) are formed on the left and right side surfaces of the sprocket (67) so as to project therefrom, and the friction plates (80) are formed.
(81) is surrounded by the brim (67a) and the pressing plates (82) (83), and the lubricating oil of the chain (71) slips on the friction plates (80) (81). Is configured to prevent.

Further, as shown in FIG. 5, the handling barrel shaft (5
a) A shroud plate (86) is arranged below the threshing drive shaft (65) which passes through the threshing part (4) left and right at the rear end of the threshing part (4), and the drive system space ( 87) Wall plate (86)
It is configured so as to prevent dust from the dust outlet (29) from blowing up into the drive system space (87), thus ensuring safety protection of the drive system.

Furthermore, a straw cutting blade (88) is installed on the screw blades (25) of the handle barrel (5) rearward of the end of the first-flow grain plate (40). Cutting blades (88) are provided at substantially equal intervals on the blade (25) between the rear end and a constant (L) rear position from the end of the first grain plate (40) in
The driving force required for cutting is effectively reduced by the large rotary inertia force of the handling barrel (5), and the straw is prevented from falling on the first grain plate (40) to maintain stable sorting accuracy. Is configured as follows.

On the other hand, as shown in FIG. 4 and FIG. 8, the Karamu suction port (89) of the Karamu fan (44) in the threshing left side plate (4a) and the fuel tank (9) in front of the suction port (89).
The partition plate (93) is projectably provided between the replenishment opening (91) for (0) and the bolt (92) so that dust from the opening (91) directly enters the suction port ( 89) to prevent the entry into

As shown in FIGS. 5 to 7, the handling chamber (2
7) A horizontal rotary left / right rotating body for diffusing the dust backward to the dust outlet (29) on the rear side and the third outlet (49) for discharging the dust from the end of the rear sorting board (32). Spreader (9
4) is arranged, and two left and right spreaders (94) for standing a large number of diffusion blades (97) on the surface of the disk (96) are rotated on a diffusion plate (95) which is inclined frontward and rearward and low. These spreaders (9
Drive case (98) for driving the rotating shaft (94a) of 4)
Is fixed to the lower surface of the diffusion plate (95), and the drive case (9
8) The drive shaft (99) is attached to the sprocket (100) (10
1) and the chain (102) through the threshing drive shaft (6
5) is interlocked with and is configured to rotate the spreader (94) in different left-right rotation directions. In this case, the blade (97) has a rotating shaft (9
4a) and is provided symmetrically on the surfaces of the left and right discs (96) so as to have a receding angle with respect to the rotation direction.

A solid triangular guide plate (10) is provided on the upper surface of the diffuser plate (95) between the front sides of the left and right spreaders (94).
3) is arranged, and the front side of the spreader (94) is arranged so as to wrap the front side of the spreader (94) with a constant dimension (T) with respect to the rear side of the threshing section (4) main body, and it is connected to the end of the second-flow grain board (41). A dust guide plate (10) which is a guide plate with a low inclination after installation.
4) The rear end and the front side of the spreader (94) are overlapped by a constant dimension (H) in a side view so that the rear end of the guide plate (104) faces the spreader (94) and the dust is discharged. Ensure that the spreader (9
4) The dust is discharged from the rear sorting board (32) into the spreader (94) while being placed on the top, so that the dust can be uniformly diffused.

This embodiment is constructed as described above, and during the threshing process by the handling cylinder (5), the straw cut short by the cutting blade (88) is discharged and dropped below the dust outlet (29). When the dust is discharged after the sorting process by the front and rear sorters (31) and (32), the dust is discharged downward from the rear end of the rear sorter (32) and falls directly or on the guide plate (104). ), It is surely dropped onto the spreader (94), and is spread uniformly behind the threshing unit (4) by the spreader (94) whose rotation directions are different between left and right. Further, in this case, the cutting blade (88) is provided on the side of the handling barrel (5) having a large rotary inertia force to cut the straw, as compared with a means for cutting the straw by the spreader (94) at the same time. Even with such a structure, it is possible to reduce the driving force for cutting without significantly increasing the rotational load of the spreader (94) and the handling cylinder (5).

[0023]

EFFECTS OF THE INVENTION As is apparent from the above-described embodiments, the present invention provides a combine equipped with a rocking sorter (31) (32) below the handling chamber (27) in the threshing unit (4) for sorting the shattered matter. In the lower part of the dust collection port (29) on the rear side of the handling chamber (27), a horizontal rotary body (94) for dust diffusion that is wrapped around the rear side of the threshing section (4) in side view is provided, and Since the dust guide plate (104) is provided above the rotating body (94) from the end of the rocking sorting board (32), dust is discharged from either the handling chamber (27) or the rocking sorting board (32). All the objects can be dropped into the rotating body (94) well, and the uniform dispersion of the dust discharged by the rotating body (94) can be promoted. There is a remarkable effect that the post-processability of the field can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view of a threshing unit.

FIG. 2 is an overall side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is an explanatory plan view of a threshing unit.

FIG. 5 is an explanatory view of a spreader installation section of the threshing section.

FIG. 6 is an explanatory plan view of a spreader section.

FIG. 7 is a rear view of the spreader section.

FIG. 8 is a side view for explaining the Karaomi fan section of the threshing section.

FIG. 9 is an explanatory diagram of a torque clutch unit.

FIG. 10 is an explanatory diagram of a threshing drive system.

FIG. 11 is a side view of the threshing drive system.

[Explanation of symbols]

 (4) Threshing part (27) Handling room (29) Dust outlet (31) (32) Sorting board (94) Spreader (rotating body) (104) Guide plate (guide plate)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeki Murata 1-32 Chayamachi, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Mikio Takagi 428 Enami, Okayama Seirei Industrial Co. In-house

Claims (1)

[Claims] 1. In a combine equipped with an oscillating sorter for selecting shattered matter in a lower part of the threshing section in the threshing section, the combiner is wrapped below the dust outlet on the rear side of the threshing section and behind and behind the threshing section in side view. A combine characterized in that a horizontal rotary body for dust diffusion is provided, and a dust guide plate is provided above the rotary body from the end of the rocking sorting board.