JPS6216826Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a threshing device, and particularly relates to an improvement of a dust outlet provided in a handling room.

[Conventional technology]

As a well-known threshing device, there is a so-called axial flow type threshing device in which a selection device is provided along the axial direction of the handling drum shaft in a handling chamber in which the handling drum is mounted on an axis, and is mainly used on a self-removing combine harvester. ing. In this threshing device, particularly in a single-barrel type, the dust outlet of the handling chamber is opened at the shaft peripheral surface near the discharge culm or at the bottom of the side wall (handling chamber) on the discharge culm side.

[Problem that the invention attempts to solve]

For this reason, if an abnormally large amount of dust is generated in the handling chamber, the dust removal effect will deteriorate, and the movement of the dust will be slowed down, resulting in an increase in the number of chips, overload on the handling cylinder, and damage to the handling teeth and cutting blades. They were prone to breakage and the generation of abnormal noises, which significantly reduced work efficiency. Also,
Dust is discharged from the swinging shelf (stroll rack, etc.) in the sorting room in a direction that intersects with the swinging direction of the swinging shelf (stroll rack, etc.). If it is discharged, it causes a significant decrease in sorting performance.

[Means for solving problems]

Therefore, the present invention provides a dust exhaust port on the side wall of the handling chamber on the exhaust port side, facing the outer periphery of the handling barrel and located above the bottom of the handling chamber, and also provides a dust exhaust port near the dust exhaust port. A bulge is formed on the periphery of the handling chamber to guide the dust that moves along the periphery of the handling chamber due to the rotation of the handling cylinder toward the dust exhaust port, along the feeding direction of the handling cylinder. This is a characteristic feature.

[Effect]

By configuring as described above, the present invention
Even though it is a single-barrel type, the dust can be discharged well, and the sorting performance can be improved by discharging the dust from a high position relative to the stroke rack of the swinging sorting shelf so as to diffuse it.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a handling chamber, within which a handling cylinder 2 is mounted, and in the axial direction of the handling chamber 1 -
A handling opening 3 is opened at the upper side, and a feed chain 4 and a pinching rail 5 are provided along this handling opening 3. A sorting chamber 6 is provided below and at the rear along the axis of the handling chamber 1, and the handling chamber 1 and the sorting chamber 6 are separated by a receiving screen 7, and the rear end of the handling chamber 1 in the axial direction is A side wall 8 is provided to separate the grain from the sorting room 6, and above it, the stock head side is held between a feed chain 4 and a pinching rail 5, and the head side is fed into the handling room 1 and threshed by the handling drum 2. A discharge culm opening 9 through which the grain culm is discharged is provided.

At the upper part of the side wall 8 on the handling port 3 side, at a position facing the outer periphery of the handling cylinder 2, there is a handling chamber dust exhaust port 1 facing the sorting chamber 6.
0 is open. Further, on the circumferential surface of the handling chamber 1 near the dust exhaust port 10 of the handling chamber, handling teeth 2a, 2a, . A bulging portion 11 is formed along the feeding direction to reflect and guide the waste toward the handling chamber dust outlet 10. As is clear from FIGS. 1 and 3, this bulge 11 is located above the bottom 1a of the handling chamber 1 and is particularly strong against the solid handling teeth 2b of the handling cylinder 2 rotating in the direction of the arrow in FIG. It is formed so that the dust subjected to the feeding action is discharged toward the center in the width direction of the sorting chamber 6.

A swing rack 12 of a swinging sorting shelf is provided below the handling room dust outlet 10 of the sorting chamber 6. Further, the sorting chamber 6 is provided with a winnowing fan 13, a first mouth 14, a second mouth 15, a suction fan 16, a sorting room dust exhaust port 17, and the like.

The threshing device configured in this manner is mounted on, for example, a self-stripping combine harvester, and the grain culm, which has a relatively high moisture content and is cut in the cutting section, is held between the feed chain 4 and the pinching rail 5 at the stock end side. , the tip side is fed into the handling chamber 1 through the suction port 3, and is threshed by the handling teeth 2a of the handling cylinder 2, which rotates in the direction of the arrow in FIG. 9 and is ejected from the aircraft. Among the threshed grains, single grains leak through the receiving net 7 and are brought to the sorting room 6, and are further sorted and discharged from the first mouth 14 to the outside of the machine and stored therein.

In addition, the dust (including adhering grains) generated in the handling chamber 1 during the threshing process is removed by the movement of grain culms and the handling teeth 2.
a. The handling chamber dust exhaust port 1 is opened by the feeding action of the solid handling teeth 2b.
0 side, and when it reaches the bulge 11, the solid handling tooth 2b exerts a particularly strong feeding action and the bulge 1
1, the dust is discharged from the handling chamber dust exhaust port 10 to the widthwise center of the stroller rack 12 (the stroke is indicated by an arrow in each figure).

The dust discharged from the handling room dust exhaust port 10 falls from quite above the stroller rack 12, and
Stroll rack 1 is in a diffused state due to the influence of the sorting wind from Karakin fan 13 and suction fan 16.
Therefore, the swinging of the straw rack 12 performs an extremely good sorting action, and the adhered grains are returned to the handling chamber 1 through the second port 15 and are reprocessed. Exhaust materials such as culms and dust are sucked into the suction fan 16 and discharged from the sorting chamber dust outlet 17 to the outside of the machine.

[Effect of idea]

As described above, according to the sorting device of the present invention, the handling chamber dust exhaust port 10 is placed in the side wall 8 on the side of the culm discharge port 9, facing the outer circumference of the handling barrel 2, and located above the bottom 1a of the handling chamber 1. Located around the handling chamber 1 near the dust exhaust port 10,
Since the bulging part 11 is formed along the feeding direction of the handling cylinder 2 to guide the dust that moves along the circumferential surface of the handling chamber due to the rotation of the handling cylinder 2 toward the dust exhaust port 10, the dust can be removed. , and fall from above the stroller rack 12 through the bulge 11, improving the sorting performance. In addition, the dust generated in the handling chamber 1 is quickly discharged into the sorting chamber 6 through the bulging part 11 even though it is a single-barrel type, so there is no clogging in the handling chamber 1. Improves threshing performance.

In the above embodiment, the present invention is applied to a so-called upper-handling axial-flow type threshing machine, but this invention can be similarly applied to a lower-handling axial-flow type threshing machine.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional side view of the entire threshing device showing an embodiment of the present invention, FIG. 2 is a cross-sectional view thereof, and FIG. 3 is a sectional view taken along the line -- in FIG. 2. 1... Handling room, 1a... Bottom, 2... Handling barrel, 6...
... Sorting room, 7 ... Reception net, 8 ... Side wall, 9 ... Exhaust culm, 10 ... Handling room dust exhaust port, 11 ... Swelling part, 12
... Strollack.

Claims (1)

[Scope of Claim for Utility Model Registration] In a threshing device in which a sorting chamber is provided along the axial direction of the handling drum shaft in a handling chamber in which the handling drum is mounted on a shaft, a side wall of the handling chamber on the culm outlet side is provided with a A dust exhaust port is provided facing the outer periphery and located above the bottom of the handling chamber and opens from the end of the handling chamber toward the sorting chamber. A threshing device characterized in that a bulge is formed along the feeding direction of a handling cylinder to guide waste material moving along the circumferential surface of a handling chamber due to rotation toward a dust exhaust port.