JPH0123091B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an exhaust dust treatment device for a threshing machine.

(Prior art) In conventional threshing equipment in which a handling drum and a processing drum are installed side by side, grains and dust from both the handling chamber and the processing drum chamber are dropped into the sorting chamber, which reduces sorting accuracy. The problem was that it did not increase.

As an improvement over this, there is a method disclosed in Japanese Utility Model Publication No. 56-2834.

The processing cylinder is installed in the same longitudinal direction as the handling cylinder so that the straw waste is directly discharged outside the machine through the handling cylinder and the processing cylinder without entering the sorting chamber, and the processing cylinder inlet is connected to the handling room dust exhaust port. It is opened downward and the outlet of the processing cylinder is made into a large dust exhaust port.

In addition, in order to form a wide sorting chamber, a processing barrel chamber is provided along the longitudinal direction of the processing barrel at the rear side of the processing barrel,
JP-A No. 56-88718 discloses a system in which the handling chamber and the processing barrel chamber communicate with each other through a dust inlet, and the handling chamber and the processing barrel chamber both face the sorting chamber below. It is shown.

(Problem to be solved by the invention) According to the above, according to Utility Model Publication No. 56-2834,
Grain leaking through the handling barrel crimp net is dropped into the sorting room, but the dust generated in the handling room is not dropped into the sorting room but is transported to the outside of the machine through the dust exhaust port, so the dust does not join the sorting room. However, since the inlet of the processing barrel opens directly below the dust exhaust port in the handling chamber, it is not possible to provide a large sorting space in the processing barrel, and the processing barrel is not placed in the sorting air path of the karachi. Therefore, this becomes an obstacle and makes it impossible to carry out good sorting.

Furthermore, although the sorting chamber disclosed in Japanese Patent Application Laid-open No. 56-88718 can be made wide, the suction fan is located at the rear of the processing chamber, and the handling barrel chamber cannot be extended to the rear end of the machine.
As a result, crackling and branching occur, and since the dust exhaust port of the processing barrel faces the sorting chamber, unprocessed materials and dust in the processing barrel chamber may fall into the sorting section, impairing the sorting accuracy. It's summery.

Therefore, an object of the present invention is to obtain an exhaust dust processing device for a threshing device with good sorting accuracy.

(Means for Solving the Problems) In order to achieve the above objects, the present invention has the following features:
A processing barrel chamber is provided at the rear of the side of the processing barrel along the longitudinal direction of the processing barrel, and the processing chamber and the processing barrel chamber are communicated with each other via a dust inlet. The processing chamber is extended to the rear end of the machine, a dust exhaust port is provided at the rear end, and the selection air path of the winnowing machine in the sorting room is communicated with the suction fan at the rear of the processing room. In a side view, the rear end of the processing chamber and the suction fan are wrapped.

(Function) Grain culms supplied through the feed chain from the supply port are threshed in the handling room, the threshed grains leak from the crimp net toward the swinging sorting board, and unleaked material is sent to the handling room. The dust is discharged from the dust outlet toward the processing barrel, where the dust is transferred while causing the grains to leak through the crimp net.

The objects that fall onto the oscillating sorting board are carefully sorted by a winnowing machine and a suction fan, and the dust that is sorted by the wind in the sorting room and the dust that comes from the processing barrel are collected by the suction fan. The dust is collected and discharged out of the machine from the dust exhaust port.

Furthermore, since the processing barrel is extended to the rear end of the machine and a suction fan is applied to the terminal end thereof, almost nothing in the processing barrel can be mixed into the sorting chamber, improving the sorting performance.

(Example) The embodiments shown in the drawings will be described below.

Reference numeral 1 denotes a processing barrel that is rotatably mounted on a shaft in a processing chamber 2. A processing barrel chamber 4 in which a processing drum 3 is rotatably mounted on a shaft is provided at the rear of the side of the processing barrel 1, and is connected to each other through a dust inlet 5. The processing barrel chamber 4 further extends to the rear end of the fuselage.

The processing barrel chamber 4 is located below the straw removal passage 7 provided with the straw removal chain 6.

The grain culms supplied from the supply port 8 by the feed chain 10 are threshed in the handling room 2, but the threshed grains leak from the crimp net 9 toward the swing sorting board 12, and the unleaked grains are removed. The grains are discharged from the dust outlet 5 toward the processing barrel chamber 4, where the grains are transferred while leaking through the crimp net 11.

The waste matter referred to here is the third category, and includes straw, dust, etc.

The material leaking from the tip of the processing barrel falls onto the swing sorting board 12 together with the leakage material from the handling chamber.

The grains that have fallen onto the oscillating sorting board 12 are sorted by wind selection using a winnowing machine 13 and a suction fan 14 consisting of a cross-flow fan in combination with the oscillation, and the carefully selected grains are transferred to the first screw conveyor 15. The one that fell into the first gutter 16 and was blown away by the wind.
The materials leaking from the processing barrel chamber 4 fall together into the second gutter 18 where the second screw conveyor 17 is located.

The materials falling into the second gutter 18 are returned to the swing sorting board 12 through the second thrower cylinder 20 at the second thrower 19 disposed on the left side in the direction of movement of the machine.

The dust blown away by wind sorting in the sorting room and the dust coming from the processing barrel are combined by a suction fan 14 and discharged toward the outside of the machine from a dust exhaust port 21.

Therefore, the reduced material in the second thrower 19 is composed of the material that has passed through both the crimp nets 9 and 11 in the handling chamber 2 and the processing barrel chamber 4, and as a result, there is little contamination of dust and unprocessed material. The amount of contamination is extremely low.

Since the processing barrel is extended to the rear end of the machine body and the suction fan 14 is applied to the terminal end thereof, almost nothing in the processing barrel is mixed into the sorting chamber.

(Effects of the Invention) Since the device of the present invention is configured as described above, it exhibits the following effects.

a; The handling room and the processing barrel are connected to each other through the dust inlet, and the processing barrel extends to the rear end of the machine, so the dust can be directly discharged to the outside of the machine. , dust does not enter the sorting chamber.
Therefore, the sorting is good and no clogging occurs.

In addition, since the end of the processing barrel and the suction fan overlap when viewed from the side, dust that falls from the end of the processing barrel is sucked up by the suction fan that acts on the end of the processing barrel and is discharged to the outside of the machine. is,
This makes it possible to prevent most of the materials in the processing barrel from entering the sorting chamber, and since the sucked materials are sorted by the suction fan, the sorting performance is improved.

b: Since the processing barrel is extended to the rear end of the fuselage, there is no occurrence of burrs or branches.

c; Since the processing barrel chamber is provided at the rear of the side of the processing barrel, the rear of the processing chamber can be used as a space for the sorting chamber, making it possible to form a wide sorting chamber and improving sorting accuracy.

[Brief explanation of drawings]

Fig. 1 is a cutaway front view of the device of the present invention, Fig. 2 is a cutaway plan view of the same as the above, Fig. 3 is a cutaway right side view of the same as the above, and Fig. 4
The figure is a cutaway rear view of the same as the above, and FIG. 5 is a rear view of the same without cutting. 1... handling cylinder, 2... handling room, 3... processing cylinder, 4...
...Processing barrel chamber, 14...Suction fan, 21...Dust exhaust port.

Claims (1)

[Claims] 1 At the rear of the side of the handling barrel, a processing barrel chamber is provided along the longitudinal direction of the handling barrel, and the handling chamber and the processing barrel chamber are communicated with each other via a dust inlet, and the handling chamber and the processing barrel chamber are connected together. The processing chamber faces the lower sorting room, extends to the rear end of the machine, has a dust exhaust port at the rear end, and connects the sorting air path of the winnowing machine in the sorting room to the suction fan at the rear of the handling room. , a dust disposal device for a threshing machine, which is formed by wrapping the rear end of a processing barrel and a suction fan when viewed from the side.