JPS6036052Y2 - Structure of dust exhaust part of thresher - Google Patents

Description

[Detailed description of the invention] The present invention is a threshing device in which a dust removal guide tube of a larger diameter is fitted around the tip of the dust removal tube so that the dust removal direction can be changed and adjusted. Concerning the structure of the dust part.

With the above dust exhaust section structure, since it is possible to change the mounting direction of the dust exhaust guide tube with respect to the dust exhaust tube, there is a problem that a gap is created between the cylinders, causing dust to blow out and worsening the working environment. An object of the present invention is to prevent the above-mentioned dust from blowing out while preventing dust clogging inside the cylinder.

Next, an embodiment of the present invention will be described based on the drawings.

A threshing section 4 handles and threshes the threshing shell culm supplied to the handling room 2 by the threshing feed chain 1 with a rotating handling drum 3.
The shaker is equipped with a sorting plate 5 for shaking and sorting the processed materials falling and supplied from the handling chamber 2, and a winnowing machine 6 for supplying a sorting wind in a direction substantially perpendicular to the rotation axis of the handling drum. Dynamic sorting section 7
are provided below the threshing section 4, and a conveyor 8 for flavorings 1 carries out the first processed material from the swinging sorting section 7 to the outside of the machine, and a conveyor 8 for carrying the second processed material from the swinging sorting section 7 to the A conveyor 9 for two aromatic substances is provided below the swinging sorting section 7 to return to the handling chamber 2, and further supplies the processed materials from the handling room 2 and the sorting air from the swinging sorting section 7. blower 1
The grains are sorted into grains and dust by the suction wind caused by zero, and the grains are supplied to the two flavor conveyor 9, and the dust is supplied together with the sorting wind to a dust evacuation section 11, which will be described later. A spiral flow sorting section 12 is provided on one side of the handling chamber 2, so that as the threshing husk is threshed, the threshed material is separated into the No. 1 processed material, the No. 2 processed material, and dust. It is equipped with a threshing device in which, while being sorted, the No. 1 processed material is carried out of the machine, the No. 2 processed material is re-processed, and the dust is discharged to the outside of the machine along with the sorting air. .

The dust removal section 11 has a structure as shown in FIGS. 1 and 2.

That is, a square dust exhaust tube 14 is extended from the spiral flow sorting section 12 to its dust exhaust port 13, and a square dust exhaust guide tube with a larger diameter is installed at the tip of this dust exhaust tube 14. 15 is externally fitted so as to be able to swing freely around a connecting shaft 16, and by changing the mounting direction of the guide tube 15 with respect to the dust exhaust tube 14, the dust exhaust direction can be changed and adjusted to the direction of the lateral force of the aircraft. be.

At the exit of the dust exhaust tube 14, there is a dust exhaust guide tube 15.
A pair of lid parts 1 made of rigid plates for a pair of gaps S, S with
7 and 17 are attached with their inner surfaces facing each other.

Furthermore, each of the lid portions 17 is configured to be swingable, and
A pressure-receiving plate (pressure-receiving surface) 18 corresponding to the lid part 17 projects into the dust exhaust pipe 14, and the free end of each lid part 17 acts on the pressure-receiving plate (pressure-receiving surface) 18 during dust removal. Both lids 1 are constantly pressed against the inner surface of the dust exhaust guide cylinder 15 by the urging force of the dust exhaust wind, and in the pressed state.
7 and 17 are arranged so that the distance between them is widened on the free end side.

Therefore, during dust removal, each gap S is closed by the lid 17 to prevent dust from blowing out from the gap S, and both lids 17, 17, together with the dust removal guide cylinder 15, are arranged in the dust flow direction. The lower side forms a guide cylinder with a flared tip, which creates turbulence in the dust flow and prevents dust from accumulating in the cylinder.

In summary, the present invention provides, in the above-mentioned dust exhaust section structure of the threshing device, in order to close the gap S between the dust exhaust tube 14 and the dust exhaust guide tube 15, the dust exhaust tubes are made to face each other and have their base ends connected to each other. 1
A pair of lid portions 17, 1 pivotably supported at the outlet portion of 4.
7, and the free end of the lid 17.17 is connected to the dust removal guide tube 1.
The lids 17, 17 are integrally formed with pressure receiving surfaces 18, 18 for receiving dust exhaust wind pressure in order to urge the lids 17, 17 to move toward the inner surfaces of the lids 17, 17. Since it is characterized in that the spacing is larger on the free end side, it has the following effects.

That is, by attaching the lid 17 as described above,
A good state is achieved in which the dust is not blown out from the gap S without impeding the swinging of the dust guide cylinder 15 and regardless of the direction of the cylinder 15, and the dust is reliably blown in the desired direction. I was able to work under the environment.

Moreover, it is conceivable to close the gap S with a bellows-shaped lid, for example, to obtain the above-mentioned effect.
In this case, large irregularities or steps are created in the cylinder, causing turbulence in the dust flow, which tends to cause dust to accumulate and become clogged.

However, according to the structure proposed by the presenter, during dust removal, the lid body 17 and the dust removal guide cylinder 15 form a guide cylinder with a tapered shape that widens on the downstream side in the dust flow direction. Since it is possible to suppress the occurrence of turbulent flow that causes dust clogging, there is no longer a problem of requiring time and effort to remove the clogged dust during threshing work or when changing the direction of the dust evacuation guide tube 15, and the work can be carried out more efficiently. became.

[Brief explanation of drawings]

The drawings show an embodiment of the structure of the dust removal part of the threshing device according to the present invention, and FIG. 1 is a longitudinal sectional view of the threshing device, and FIG. 2 is a longitudinal sectional plan view of the main part. 14... Dust exhaust tube, 15... Dust exhaust guide tube, 17... Lid body, 18... Pressure receiving surface,
S... Gap.

Claims (1)

[Scope of utility model registration request] This is a dust evacuation part structure of a threshing device in which a dust evacuation guide tube 15 having a larger diameter than the dust evacuation tube 14 is swingably fitted onto the tip of the dust evacuation tube 14, and the dust evacuation tube 14 and the dust In order to close the gap S between the guide tube 15 and the guide tube 15, the base ends of the dust exhaust tubes 14
A pair of lid bodies 17, 17 pivotably supported at the outlet portion of the
Then, the free end of the lid body 17.17 is connected to the dust removal guide cylinder 15.
The dust removal wind pressure receiving surfaces 18, 18 are integrally formed with the lids 17, 17 to urge the lids to move toward the inner surfaces of the lids 17, 17. A structure of a dust evacuation part of a threshing device, characterized in that the free end side is configured to be large.