JPS5830429Y2 - Dust control device for thresher - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a dust evacuation control device for a threshing machine.

In other words, in a threshing machine that has a rotatably adjustable dust feeding valve installed around the handling room and a dust suction unit connected to the dust extraction section behind the sorting dust removal room, the dust generated in the handling room during threshing operation. The dust sending valve is adjusted according to the amount of straw waste to be processed, and the amount of dust sent is adjusted according to the processing in the handling room, but the dust exhaust is automatically adjusted according to the adjustment to avoid clogging the dust suction machine. is possible,
To provide a method for performing high-performance threshing work by reliably and satisfactorily removing dust without causing unnecessary scattering or deteriorating sorting performance.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a cross-sectional view of a threshing machine mounted on a combine harvester.
A handling cylinder cover 9 is attached to the upper part of the handling chamber 1 in which the handling cylinder 8 is installed, and a downward dust inlet 11 is formed on one side of the lower part of the handling chamber 1 where a crimp net 10 is stretched. A foot chain 12 and a clamping rod 13 are extended along the sides of the chamber 1, and a straw exhausting chain 14 is extended to the rear.

1. A sorting dust removal chamber 3 is formed at the rear of the handling chamber 1, and a swinging sorting body A is installed extending from the bottom of the handling chamber 1 to the bottom of the sorting dust exhausting chamber 3. - A feeding rack 16 is swingably installed above the rack 15, and below the swinging sorting body A, a conveyor No. 17. do.

A dust-feeding valve 2 similar to the conventional structure is provided above the inside of the handling chamber 1, and a pivot shaft 20 of the dust-feeding valve 2 is pivotally supported on a support metal 21 on the handling barrel cover 9. The lever 22 is configured so that the rotation support shaft 20 can be rotated by a locking body 23 at the intermediate portion of the lever 22 that can be engaged with and locked with the chrysanthemum seat 24 of the support metal 21.

Further, at the rear of the rear end of the straw rack 15 behind the sorting dust exhaust chamber 3, there is provided a dust exhaust section 4 that faces laterally and slopes downward on one side, forming a lower part of the dust exhaust section 4. A suction port 5a of a dust suction device 5 is connected to the lower end of the gutter 4', and a case 26 having an opening 25 downward is formed at the rear of the dust removal section 4.

Case 2 at the rear of the dust removal section 4 and above the opening 25
A dust exhaust valve 6 is installed in the dust exhaust valve 6, and the dust exhaust valve 6 rotates around a support shaft 27 fixed to one end of the dust exhaust valve 6, so that the rear of the dust exhaust section 4 can be opened and closed. The dust exhaust valve 6 is biased in the closing direction by the elastic force of the spring rod 28 which is provided and wound around the support shaft 27,
An arm 29 fixed to a support shaft 27 and the lever 22 are linked by a wire 7, and when the lever 22 is adjusted to one side, the wire 7 is sub-activated to open the dust exhaust valve 6. Construct it as a formula.

However, when the amount of straw waste generated in the handling chamber 1 during threshing work is not large, when the lever 22 is rotated to one side as shown in FIGS. 2 and 4, the dust sending valve 2 is As shown in Fig. 3, the straw waste that is tilted and circulated by the handling cylinder 8 is returned to the supply side while being guided by the dust sending valve 2, and the treatment is fully carried out. Since the wire 7 is no longer subjected to pulling action, the dust exhaust valve 6 is closed by the elastic force of the spring rod 28, and the stroke is closed.
All 11 of the small amounts of dust sent out by the rack 15 are sucked into the dust suction device 5 from the dust removal section 4 and discharged to the outside of the machine.

Furthermore, when the amount of straw waste in the handling chamber 1 increases, when the lever 22 is rotated as shown in FIG. The straw waste is actively guided and sent out toward the dust sending port 11 side by the dust feeding valve 2, and when the wire 7 is pulled by operating the lever 22, it is tensed by the spring rod 28, and as shown in FIG. As shown, the dust exhaust valve 6 opens, and a large amount of dust is sent out from the stroke rack 15, and then flows out to the rear of the dust exhaust section 4, which opens and is discharged outside the machine. is sucked into the dust suction device 5 and discharged.

In this way, the present invention is constructed by installing the dust feeding valve 2 around the handling chamber 1 so as to be rotatably adjustable, and also connecting the dust suction device 5 to the dust exhausting section 4 at the rear of the sorting dust removal chamber 3. In the threshing machine, the rear part of the dust exhaust part 4 is opened and a dust exhaust valve 6 is provided so that the dust exhaust valve 6 can be opened and closed freely, and the dust exhaust valve 6 is connected to the dust sending valve 2 to adjust the dust sending valve 2. Since the dust exhaust valve 6 is configured to open and close, if the dust feed valve 2 is adjusted in the same manner as before according to the amount of straw waste generated in the handling chamber 1 during threshing, the dust in the dust exhaust section 4 will be removed. The valve 6 can be adjusted to open and close in an interlocking manner, and by adjusting the valve 6, it is possible to automatically adjust the dust exhaust so as not to cause clogging on the dust suction device 5 side, which may cause unnecessary scattering or reduce the sorting performance. It has the feature that dust can be removed reliably and well without any problems, and high-performance threshing work can be performed.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway side view of the threshing machine, FIG. 2 is a plan view of a portion thereof, and FIG. 3 is a plan view of the lower part of FIG. 4 is a perspective view of the main parts, FIG. 5 is an explanatory diagram of the operation of FIG. 2, and FIG. 6 is an explanatory diagram of the operation of a part of FIG. 1. 1... Handling room, 2... Dust feeding valve, 3...
... Sorting dust removal chamber, 4 ... Dust removal section, 5 ...
...Dust sucker, 6...Dust exhaust valve, 7...Wire.

Claims (1)

[Scope of utility model registration request] A dust blowing valve 2 is rotatably provided around the handling chamber 1, and a dust blower 5 is installed in the dust exhausting section 4 at the rear of the sorting dust exhausting chamber 3.
In the threshing machine, the dust exhaust section 4 is opened at the rear and can be freely opened and closed by a dust exhaust valve 6, and the dust exhaust valve 6 is connected to the dust feeding valve 2 to form a dust feeding valve. 2. A dust exhaust adjustment device for a threshing machine, characterized in that the dust exhaust valve 6 is opened and closed by the adjustment operation in step 2.