JPH1014A - Threshing chamber in thresher for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inlet structure of a threshing chamber in a thresher or a combine harvester capable of efficiently transferring a large amount of grain culms without stay thereof in an inlet of the threshing chamber even when transferring the large amount of the grain culms in the thresher for the combine harvester. SOLUTION: This screw type threshing chamber in a thresher for a combine harvester is obtained by installing platy protrusions 50x facing the conveying direction of grain culms at an inlet bottom of the threshing chamber equipped with a spiral screw 51a of the thresher for the combine harvester and is capable of promoting the rearward movement of the grain culms by actions of the spiral screw 51a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handling room in a combine threshing apparatus, and has a feature at an entrance of the handling room.

[0002]

2. Description of the Related Art In a conventionally known general-purpose combine, when the flow rate of cereal culm increases due to the delivery area from a feeder house to a handling room and the shape of a handling cylinder near the handling room, the cereal culm at the entrance of the handling room is increased. There was a problem that the transfer was delayed.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to handle a large amount of grain culm even in a combine threshing apparatus. It is an object of the present invention to provide a handling room entrance structure that can efficiently transfer to a handling room without stagnation at the entrance of the room.

[0004]

In order to achieve the above object, the present invention solves the problem by installing an additional member at the entrance of a handling room in a conventional threshing apparatus.
In other words, in a combine threshing device, a screw-type handling room equipped with a spiral, and by providing a plate-shaped projection in the transport direction of the grain culm at the bottom of the entrance of the handling room,
The problem is solved by the handling room in the threshing device of the combine, which is characterized in that the backward movement of the grain stem is promoted by the action of the spoiler.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. First, the outline of the combine is described. FIG. 1 is a schematic side view of the entire combine. The components of the combine are a crawler (A) that drives the main body, a threshing unit (D) mounted on the crawler, a culm cutting unit (B) installed in front, and this cutting unit (B). ) Is roughly divided into a transport unit (C) for sending the cereals to the threshing unit (D).

The cutting device (B) mainly includes a scraping reel (10), a cutting blade (11), and a scraping auger (1).
2). Grain stalks are scraped reels (10)
After being scraped by the cutting blade (11), it is sent from the scraping auger (12) to the transport unit (C).
The scraping auger (12) is composed of a scraping finger (15) that can move in and out according to the rotation of the drum (13) and a spiral (16) that gathers the cereal stem from the left and right to the center, for example, as shown in FIGS. 2 and 3. Scraping plate (1
8) are connected to the ends of the left and right spirals (16) to prevent the stalks from winding around the drum (13).
The rake plate (18) rises and falls in synchronism with the rise and fall of the rake finger (15) via a butterfly bank (17), but is fixed such as an L-shaped plate (19) shown in FIG. It may be something.

[0007] The grain stalks taken in by the pruning device (B) are fed from the scraping auger (12) to the threshing device (D) by the chain conveyor (31) in the feeder house (30) in the transport device (C). ).

In the threshing unit (D), the cereal culm is first transferred into a handling room (50) and threshed by a screw-type handling cylinder (51). The threshed grains fall from the crimping net (52) below the handling cylinder (51) onto the swinging sorting plate (53) and are sorted. Threshing material that has fallen on the rocking sorter plate (53) is sorted here, but the long straw is removed from the dust outlet (5
4) Carried in the direction. Threshing material selected by the rocking sorting plate (53) is sorted by the sorting wind by Karino (55), and the cereals are the first gutter (56) and the second is the second gutter (57).
To fall. The cereals falling to the first gutter (56) are transported to the paddy tank via a fryer cylinder, and the second fallen to the second gutter (57) is placed on a swing sorting plate (53) by a second return auger. It is to be reduced to.

The outline of the combine is as described above.
In the threshing device part (D) of such a combine, even if a large amount of grain stalks are transferred, in order to prevent the intake from being stagnated at the entrance of the handling room (50), A guide member for guiding the transfer of cereal stems is provided at the entrance of the handling room (50) and is improved. FIG. 5 is a front view showing the handling room entrance (50a), and FIG. 6 is a top plan view showing the spiral (51a) near the handling room entrance (50a). Chain conveyor (31) of the transport unit (C)
Is transported to the handling room (50) of the threshing unit (D). As shown in the drawing, a plate-like projection (50x) is provided in the handling room entrance (50a) obliquely in a plan view toward the conveying direction of the grain culm in the handling drum (51).
It is erected at the bottom. Grain stalks sent from the chain conveyor (31) to the handling room (50) enter the entrance (50a).
The plate (50x) has a spiral projection (51x).
The effect according to a) is favored for backward movement rather than lateral movement. Thereby, when a large amount of grain stalks are transferred, the conventional problem that the stagnation of the intake at the entrance (50a) of the handling room (50) is solved.

As described above, the plate-like projections (50x) are installed obliquely in a plan view toward the conveying direction of the grain culm in the handling drum (51), as shown in FIG. Alternatively, it may be installed close to the end of the spiral (51a). Also,
The shape of the plate-like projection (50x) is a chain conveyor (3
1) Considering the shapes of the feeder house (30) and the handling room (50) from the end to the vicinity of the handling room entrance (50a), and the shape and characteristics of the spiral (51a), the optimum shape for each device. Is finely adjusted as appropriate. As described above, the installation form and installation position of the plate-shaped projections (50x), the shape and the number, and the like can be appropriately designed and changed according to the individual conditions of the peripheral device.

An air damper 21 is connected to the mowing crunch lever 20 shown in FIG. 1. Even when the mowing crunch lever 20 is suddenly tilted back and forth, the damper cushion function acts on the drive unit even when the clutch is engaged. Such torque is reduced.

[0012]

The handling room in the combine threshing apparatus of the present invention has the following effects because it has the above-described configuration. In other words, the grain culm sent from the feeder house of the conveyor unit to the handling room of the threshing unit has a spiral member whose transport is promoted more rearward than laterally by the guide member at the entrance. Be affected. For this reason, even when a large amount of cereal stems are transferred, the cereal stalks are efficiently transferred without stagnation at the entrance of the handling room, and the stalks stagnated at the entrance of the handling room return to the pruning device section and cause trouble. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic side view of the entire combine.

FIG. 2 is a side sectional view of a scraping auger.

FIG. 3 is a plan view of a scraping auger.

FIG. 4 is a side sectional view of another example of a scraped auger.

FIG. 5 is a front view of a handling room entrance.

FIG. 6 is a top plan view of the spiral near the entrance of the handling room.

[Description of Signs] A Crawler B Pruning unit C Transport unit D Threshing unit 10 Scraping reel 11 Cutting blade 12 Scraping auger 13 Drum 14 Crankshaft 15 Scraping finger 16 Spiral 17 Butterfly 18 Scraping plate 19 L Figure plate 20 Cutting crunch lever 21 Air damper 30 Feeder house 31 Chain conveyor 50 Handling room 50a Handling room entrance 50b Feed control valve 50x Plate-shaped projection 51 Handling cylinder 51a Spoiler 52 Crimp net 53 Swing sorting plate 54 Dust outlet 55 56 First gutter 57 Second gutter

Claims (1)

[Claims] In a threshing apparatus for a combine, a screw-type handling chamber provided with a spiral and a plate-like projection provided at the bottom of the entrance of the handling chamber in a direction in which the grain culm is conveyed, whereby the action by the spiral is provided. A handling room in a combine threshing apparatus characterized in that backward movement of a grain culm is promoted.