JPH0636670Y2 - Screw handling body structure in combine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a screw handling barrel structure in a combine for performing shedding work by putting in all the harvested culms that are wound with outer peripheral spiral blades.

[Prior Art] A screw handling cylinder in a conventional combine has a structure in which long spiral blades continuous in a single shape are wound.

[Problems to be solved by the invention] Therefore, it is difficult to manufacture because long spiral blades must be formed so as to be twisted. Also, during shedding work, the spiral blades facilitate the transportation of grain stems. However, there is a problem in that the shedding action may be slightly insufficient.

The present invention solves the problem and facilitates the production of spiral blades, and further improves the shedding performance without significantly impairing the feeding action of the spiral blades that convey the whole grain culms. The present invention provides a screw handling cylinder that can be used, and is provided so that it can be suitably implemented.

[Means for solving the problem] Therefore, in the present invention, the spiral blades are formed separately, and each blade is extended in the spiral direction so that a gap is formed between adjacent blades. While being fixed to the surface, the width of each vane plate in the circumferential direction of the handling cylinder is larger than the circumferential width of the handling cylinder in the axial direction of the handling cylinder.

[Operation] Therefore, it is possible to easily manufacture each blade by directing the blades in the spiral direction in the spiral direction and fixing the blades to the outer peripheral surface of the handling cylinder. It is possible to promote the shedding action by making the feeding action stagnant by the gap of.

Example Next, an example shown in the drawings will be described.

FIG. 3 shows a side view of the axial-flow combine, in which the cutting section (B) is connected via the feeder (4) in front of the threshing section (A) mounted on the machine supported by both crawlers (3). The harvested grain section (B) is provided with a scraping auger (5) at the rear.
A take-up reel (7) is provided above the cutting blade (6), and a paddy tank (8) and an engine section (9) are provided on the lateral side of the threshing section (A), and in front of it. In the driver's seat (1
0) is arranged and the combine harvester is put into operation in the same manner as the conventional structure, in which all the harvested grain culms are charged and the grain is shredded.

The threshing unit (A) has a long handling cylinder (2) rotatably mounted on the upper part of the threshing unit (A), and a crimping net (11) is stretched below the handling cylinder (2) and at the same time a handling cylinder. The front end side of (2) is installed so as to communicate with the end side of the front and rear feeders (4), and a plurality of discharge blades (12) are provided on the outer periphery of the handling cylinder (2) on the end side.
Is fixedly installed to form a downward dust outlet (13) below the crimp net (11), and an oscillating sorting body (14) is installed below the crimp net (11). No. 1 conveyor (1
6) The No. 2 conveyor (17) is installed, and the structure is the same as the conventional structure.

A screw blade is formed by fixing a spiral blade (1) on the outer circumference from the front part of the handle cylinder (2) to the vicinity of the terminal end, and the screw blade (1) is substantially formed in one pitch of the spiral. The blade plate (1a) is formed by dividing the blade plate (1a) into a linear shape in a plan view, and the blade plates (1a) are respectively arranged in the spiral direction to be adjacent to each other. (1a) A gap (C) is formed between (1a) to be fixed to the outer peripheral surface of the handling cylinder (2).

Further, as shown in FIG. 2, when viewed from the axial direction of the handling cylinder (2),
The width of each of the vane plates (1a) in the circumferential direction of the handling cylinder is larger than the width of the clearance (C) in the circumferential direction of the handling cylinder so that the feeding action of the spiral blade is not significantly impaired.

Further, also in the scraping auger (5), each blade plate (5a) is formed so that the spiral blades on the outer periphery thereof are linear in plan view.
Blade plate (5a) that is divided into two parts and is aligned along the spiral direction.
A gap (C) is formed between (5a) and is fixed to the outer peripheral surface of the auger.

Therefore, at the time of combine operation, the grain culms that are cut and fed by the fan (4) are shredded by the screw handling cylinder and transported backward, but between the blades (1a) along the spiral direction. Has a gap (C),
While the grain culm is conveyed by the blade (1a), its feeding action is temporarily stopped, and the grain shedding action on the grain culm is promoted, so that the leakage from the crimp net (11) is swayed. The moving sorting body (14) swings and sorts, and the culms conveyed to the rear are discharged from the dust outlet (13).

[Effects of the Invention] As described above, according to the present invention, since each blade (1a) is formed by being divided into substantially straight lines, it is easier to form the spiral blade extending in the spiral direction as in the conventional case. It will be able to be manufactured, and at the time of work, while transporting the culm by a spiral,
The feeding action can be temporarily stopped by the gap (C) between the vane plates (1a), so that the shedding action can be promoted, and the screw handling cylinder having good shedding action can be suitably implemented. Has features.

Moreover, the gap does not significantly impair the feeding effect of the spiral blade of the grain culm.

[Brief description of drawings]

1 is a side view of a part of a screw handling cylinder according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a side view of a combine, and FIG. 4 is The plan view, No. 5
The figure shows a side sectional view of the threshing part, and FIG. 6 shows a part of the scraping auger. (1) ... spiral blade, (2) ... handle cylinder (1a) ... blade plate, (C) ... gap

Claims (1)

[Scope of utility model registration request] 1. In a combine equipped with a handling drum (2) having spiral blades (1) wound around its outer periphery, in which all of the harvested grain culms are put in and shedding is carried out, the spiral blades (1) are substantially linear. Each vane plate (1a) is divided into each vane plate (1a), and each vane plate (1a) is extended in the spiral direction to form a gap (C) between adjacent vane plates (1a) (1a). 2) In addition to being fixed to the outer peripheral surface, the width of each vane plate (1a) in the circumferential direction of the handling cylinder is larger than the circumferential width of the handling cylinder (2) in the axial direction of the handling cylinder (2). A screw handling body structure characterized by being configured as follows.