JPH089747A - Ordinary type combine harvester - Google Patents

Abstract

PURPOSE:To provide an ordinary type combine harvester equipped with a feeder house of a specific shape for sending grain culm reaped at a reaping part to a threshing part, reducing the number of parts of a feeder house to improve dimensional accuracy, having excellent beauty of appearance. CONSTITUTION:This ordinary type combine harvester is provided with a feeder house 19 which sends grain culm reaped at a reaping part to a threshing part and is formed by joining two side plates 33 and 34 having an approximately L-shaped section. In a combine harvester for sending the grain culm reaped at the reaping part to a threshing part by a transporting plate of a feeder chain built in the feeder house 19, a guide rotator for guiding and supporting the feeder chain is preferably furnished with a deformation preventing wheel having an outer periphery to be brought into contact with the transporting plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a normal combine harvester for harvesting grains such as rice, wheat and soybeans in a cutting section and threshing in a threshing section.

[0002]

2. Description of the Related Art A feeder house of this type is usually formed by combining four side plates into a square tubular shape. In addition, the grain culm conveying plate provided in the feeder chain in the feeder house is made thicker so that it is hard to be deformed, and a material having high strength is used to maintain stable conveying ability.

[0003]

However, when forming a feeder house by combining the four side plates as in the former case, not only dimensional accuracy is required, but also many welding points are required and the welding length is long. It takes time and labor and is poor in workability, and the welding traces can be easily visually recognized from the outside, thus deteriorating the commercial value. Further, in the case of the latter transport plate, there are drawbacks such as a large increase in the weight of the feeder house and a large increase in processing cost.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a combine provided with a feeder house for feeding grain culms cut by a cutting section to a threshing section, two side plates having a substantially L-shaped cross section are combined. By forming the feeder house, the number of parts that make up the feeder house is reduced to improve dimensional accuracy, and the number of welding points is reduced to shorten the welding length, facilitating manufacturing and reducing appearance. To provide a large feeder house.

Further, in a combine in which the grain stalks cut by the shaving section are fed to the threshing section by a conveyor plate of a feeder chain installed in a feeder house, a guide rotating body for guiding and supporting the feeder chain is provided. By providing a deformation prevention wheel body that makes the outer peripheral portion abut against the transport plate, for example, the guide rotation of the loading portion where a load is applied does not require a large thickness of the transport plate or a high-strength material for the transport plate. By providing a deformation prevention ring only on the body to prevent deformation of the transport plate and strengthen the strength, it is possible to maintain stable transport capability.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a perspective view of a feeder house, FIG. 2 is a side view of the whole, and FIG. 3 is a plan view thereof. In the figure, (1) is a machine stand equipped with a traveling crawler (2) on a track frame (3). , (4) is equipped with an axial flow screw type handling cylinder (5), a processing cylinder (6), a sorting mechanism (7), etc., and is mounted on the machine base (1) for a threshing section, and (8) is lifted. A grain tank for accumulating grains of the threshing section (4) taken out through the grain cylinder (9), (1
0) is a hydraulic cylinder (1) in front of the lower part of the threshing section (4).
(1) A mowing section that is installed so as to be able to move up and down, (12) a driving cabin that includes a driver's seat (13) and a driving operation section (14), and is arranged in front of the grain tank (8).
Reference numeral 5) is an engine part provided behind the grain tank (8) and internally equipped with an engine (16), and (17) is a grain carry-out auger for taking out grains from the grain tank (8).

The mowing section (10) is connected to the grain mowing header (18) for receiving the uncut grain culm and the rear center of the header (18) to the threshing section (4). It is composed of a feeder house (19) for feeding, and a reel (20) for scraping uncut grain, a first and second reciprocating drive type cutting blades (21) (22), and a grain scraping auger ( 23) is provided in the mowing header (18), and the mowing culm to be taken into the header (18) is sent to the threshing section (4) via a feeder chain conveyor (24) provided in a feeder house (19). It is configured to perform threshing processing with.

Further, a second reducing cylinder (25) is provided on the outer right side of the threshing section (4), and the second processed product is returned to the threshing section (4) through the processing cylinder (6) and re-threshed. And it is provided to re-sort.

As shown in FIGS. 4 to 6, the feeder chain conveyor (24) of the feeder house (19) is
Left and right between the drive sprocket (27) attached to the conveyor drive shaft (26) at the rear end of the house (19) and the conveyor drum (29) which is a guide rotating body attached to the idle drum shaft (28) at the front end of the house (19). A pair of feeder chains (3
0) is wound, a grain culm conveying plate (31) is integrally attached to the outside of the feeder chain (30), and the harvested grain culms gathered in the approximate center by the scraping auger (23) are fed into a feeder house (31). 19) and feeds it to the threshing section (4) via a grain culm conveying path (32) formed between the lower chain (30) and the bottom surface (19a) of the house (19). It is configured to do.

As shown in FIGS. 1 and 5, the feeder house (19) is formed into a substantially L-shape and has two upper and lower side plates (3).
3) It is formed by combining (34) into a tubular shape with a square cross section, and the upper and lower side plates (33a) (33b) have upper and lower side plates (33), and the lower and right side faces (34a) (34a) ( 34
Both ends of the lower plate (34) having b) are bent substantially at right angles to form mating surfaces (34c) (34d), and the upper plate (33) is formed.
The mating surfaces (34a) (34b) are welded and fixed to the inner side surfaces of both ends of the two, and these two side plates (33) (34) are fixed by welding at two places to form a feeder house (19) and 2 The two welded parts are made to face the inside of the fuselage so that the appearance is better than that of the outside of the left.

As shown in FIGS. 9 to 10, the conveyor plate (31) is formed of an elastic body using a spring rope or an elastic synthetic resin material, and is attached to the feeder chain (30) in side view. 31a), a front conveying surface (31b) that is bent substantially perpendicular to the conveying direction, and a front end side is bent rearward with respect to the conveying direction so that the height is larger than that of the front conveying surface (31b). It is provided on the rear transport surface (31c), and both ends of the transport plate (31) are attached to the left and right feeder chains (30) by bolts (3).
It is detachably attached via 5).

Then, a small gap (H1) between the bottom surface (19a) of the house and the lowermost end of the carrying plate (31) in a normal state is formed,
In addition to making it possible to convey grain culms in a small amount in the conveyance path (32) at a good time, the conveyance plate (31) is deformed to secure a wide gap (H2) during a large amount conveyance in which a large amount of grain culms are taken in at once. The simple construction means prevents accidents such as jamming of the grain culms in the transport path (32).

Deformation prevention rings (36a) (36), which are a pair of left and right deformation prevention rings that abut against and support the left and right intermediate portions on the back side of the chain mounting surface (31a) of the transport plate (31).
b) is fixed to the surfaces of the left and right intermediate parts of the conveyor drum (29) to improve the strength of only the grain culm intake part of the feeder house (19) to which a load is applied, and the left and right prevention rings (36a) ( The length (L2) between 36b) is made larger (L1 = L3 <L2) than the length (L1) (L3) between the left and right ends of the rings (36a) (36b) and the drum (29), To prevent the deformation of the left and right sides of the conveyor plate (31) in the feeder house (19), which increases the amount of grain culm transported, to improve the support strength and to reduce the load applied to the feeder chain (30). It is configured to improve the durability of this chain (30).

As shown in FIGS. 7 to 8, a chain tension drum (37) is provided on the slack side of the feeder chain (30) opposite to the conveying path (32), and the tension drum (37) is provided. ) The upper ends of all screw-shaped tension rods (40) which are inserted through the collar (39) by welding the rod collar (39) to the collars (38a) at both ends of the drum shaft (38) in a substantially orthogonal manner. Fixing nut (41) is attached to a tension bracket (42) which is fixed to the feeder house (19), and a spring receiving nut (4) which is coupled to the lower end of the rod (40) is attached.
3) between the lower end of the rod collar (39) and the spring seat (4
4) Tension spring (45) with adjustable spring pressure via
Is provided and the tension drum (37), which is brought into rolling contact with the chain (30) by the pressure of the spring (45), is pushed up to tension the chain (30).

A drum shaft (3) provided below the tension bracket (42) of the feeder house (19).
The upper and lower cover plates (47) for concealing the holes in the long holes (46) of 8).
(48) is divided and attached, the upper end of the upper cover plate (47) is formed into a bent edge (47a), and the upper cover plate (47) is folded into the bracket (42) at the time of the lower set position of the drum (37). The curved edge (47a) is engaged to hold the upper plate (47) in position, and when the drum (37) is in the upper set position, the lower end of the upper plate (47) is brought into contact with and engaged with the drum shaft (38). The upper plate (47) is configured to move upward together with the drum shaft (38).

Further, the lower cover plate (48) is connected to the rod collar (39) through the upper stay (48a),
The long hole (46) that can be moved integrally with the drum (37)
The hole (4) is provided so that the nut (4
3) The lower cover plate 48 is connected to the lower stay 48b by the lower stay 48b, and the fixing nut 41 of the tension rod 40, which projects above the bracket 42, is tightened, and the spring 45 ) To move the drum (37) to adjust the tension on the chain (30).

As shown in FIGS. 11 to 12, the first
The cutting blade (21) is provided at the front end of the cutting frame (49) of the cutting header (18) to cut the grain culm, and the second cutting blade (22) is provided at a low position behind the first cutting blade (21). The first cutting blade (21) is used to adjust the stump height of the stump, and brackets (51) (52) are provided on the left and right ends of the horizontal pipe (50) approximately in the middle of the cutting frame (49).
The left and right second cutting blade rotary fulcrum shafts (53) and (54) are attached to the fulcrum shafts (53) and (54) via the left and right support frames (55) and (56) and the left and right lifting cylinders (57). The second cutting blade (22) is supported so as to be vertically movable.

The support frame (55) on the left side has a L-shaped receiving base (5) of the receiving blade (22a) of the second cutting blade (22).
8) The receiving plate (5) extending and fixed to the rearmost left end position in
9) is connected to the rear end of the frame (55) through a vertical pipe (60), and the vertical pipe (60) is connected to the cutting blade (22).
These cutting blades (2
2) and the pipe (60) are prevented from wrapping in the width direction to prevent the cut marks from becoming messy due to culms remaining between them.

The right side support frame (56) has a rear end of the frame (56) connected to a mounting plate (62) of a cutting blade drive case (61) fixedly mounted on the blade receiving stand (58). The second cutting blade drive shaft (6) having the same axis as the rotation fulcrum shaft (54)
3) is connected to the input shaft (61a) of the drive case (61) via the pulleys (64) (65) and the belt (66), and is connected to the reaper input counter shaft (67) of the reaper (10). , The drive shaft (63) is interlockingly connected via the sprockets (68) (69) and the chain (70) to drive the second cutting blade (22).

This embodiment is constructed as described above, and the feeder house (19) is provided with two side plates (33) (3).
4) can be easily formed by welding at two points,
Processing with good dimensional accuracy is performed with the minimum number of component parts. There are few welding points, and this welding point is located on the back side of the upper plate (33) that is invisible from the outside, and the appearance is excellent. And can be provided at low cost.

Further, deformation preventing rings (36a) (36b) are provided on a conveyor drum (29) arranged in the grain culm intake portion of the feeder house (19), and each conveying plate (31) of the feeder chain (30). It is possible to effectively prevent the occurrence of deformation on the feeder chain and a large load applied to the feeder chain (30). Only the grain culm intake part on which the load is applied is made to have a state in which the strength is improved by an extremely simple means, It is possible to achieve stable maintenance of the transport performance in the feeder house (19) at a low weight and at a low cost.

The deformation preventing rings (36a) (36b) can also be installed on the conveyor drive shaft (26).

[0023]

As is apparent from the above embodiments, the present invention is a combiner equipped with a feeder house (19) for feeding grain culms harvested by the harvesting section (10) to the threshing section (4), Since the feeder house (19) is formed by uniting two side plates (33) (34) having a substantially L-shaped cross section, the number of parts constituting the feeder house (19) is reduced to improve the dimensional accuracy. It is possible to provide a feeder house which can be improved and can be easily manufactured at low cost by reducing the number of welded portions and shortening the weld length and having a good appearance.

A feeder chain (3) in which the grain culms harvested by the harvesting section (10) are installed in the feeder house (19)
In a combine for feeding to the threshing section (4) by the transport plate (31) of (0), the outer peripheral portion of the transport plate (31) is provided on the guide rotating body (29) that guides and supports the feeder chain (30). ) Of the deformation prevention ring (36
Since a) and (36b) are provided, the guide plate is not particularly thick or the carrier plate (31) is not made of a high-strength material. Anti-deformation wheels (36a) (36) only on the body (29)
By providing b), deformation of the carrier plate (31) can be prevented, strength can be reinforced, and the like, and a remarkable effect can be obtained such that stable carrying capacity can be maintained.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view of a feeder house.

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

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

FIG. 4 is a side view of a feeder house.

FIG. 5 is a front explanatory view of a feeder house.

FIG. 6 is an explanatory diagram of a conveyor drum unit.

FIG. 7 is a side view illustrating a tension drum portion.

FIG. 8 is a partially enlarged explanatory view of a tension drum portion.

FIG. 9 is a front explanatory view of a carrier plate.

FIG. 10 is a side view for explaining a carrier plate.

FIG. 11 is a side view of the second cutting blade section.

FIG. 12 is an explanatory plan view of a second cutting blade section.

[Explanation of symbols]

 (4) Threshing part (10) Mowing part (19) Feeder house (29) Conveyor drum (rotating body) (30) Feeder chain (31) Transport plate (33) (34) Side plate (36a) (36b) Deformation prevention ring (Round body)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhisa Shiotani 1-32, Chayamachi, Osaka City Yanmar Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] 1. A combine harvester having a feeder house for feeding grain culms cut by a mowing unit to a threshing unit, wherein two side plates having a substantially L-shaped cross section are united to form the feeder house. Ordinary combine. 2. In a combine in which the grain stalks mowed by the mowing section are fed to the threshing section by a conveyor plate of a feeder chain provided in a feeder house, a guide rotating body that guides and supports the feeder chain, A normal combine combine having an anti-deformation wheel body for bringing an outer peripheral portion into contact with the transport plate.