JPH0143000Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a threshing sorting device, and its purpose is to
To enable threshing and threshing grain sorting to be performed satisfactorily and efficiently, and to have a simple and compact structure.

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

As shown in FIG. 1, a handling barrel 2 is rotatably housed in a handling chamber 1 formed in the upper part of the fuselage, and
A threshing feed chain 3 for supplying harvested grain culm to the handling room 1 and transporting threshed waste straw to the outside of the machine is rotatably provided outside the machine to constitute a threshing section. A post-processing section 4 for re-threshing and sorting the threshed product is provided in the lower part of the machine body, and a thrower cylinder 5 for lifting and carrying out the threshed grains from the post-processing section 4 outside the machine is attached to the rear part of the machine body. , it also constitutes a threshing and sorting device for a combine harvester.

The post-processing section 4 is constructed as shown in FIGS. 1 to 5.

That is, it consists of a cylindrical body 6 having a receiving port 6a located below the receiving screen 1a of the handling chamber 1, and two spiral bodies 7, 7 made of round spring bars that are internally rotatably integrated with this cylindrical body 6. The spiral body 7 is its rotational support shaft 7a.
A conveying device 8 configured to transfer the processed material from the handling chamber 1 to the rear of the machine by the cooperation of the cylindrical body 6 and the spiral body 7 as it is driven by power transmitted to the
A threshing wall 6b is provided below the handling chamber 1 and is formed of a non-porous material so that the material transported by the transport device 8 is re-thrested by scraping in cooperation with the spiral body 7; A wall portion 6c with a through hole formed of a net so that the threshed grains and dust such as straw waste are separated by stirring by the rotating spiral body 7, and the threshed grains leak to the outside of the cylindrical body 6. is provided on the peripheral wall of the cylindrical body 6, with the through-hole wall portion 6c located on the lower side of the conveyance side than the threshing wall portion 6b. A suction type rotary fan 9 for supplying sorting air in the conveying direction to the conveying device 8 is provided at the terminal end of the conveying device 8 in a state that it is attached to the rotational shaft so as to be driven by the spiral body 7. First and second dust exhaust ports 10 and 11 are formed in the case 12 of the fan 9, and the processed material from the handling chamber 1 is transported to the rear of the machine by the transport device 8 while being re-threshed and sorted by specific gravity. At the same time, the threshed grains are sorted by the sorting wind, and the threshed grains are discharged from the conveyance end to the outside of the cylindrical body 6, and the sorting wind is discharged together with dust from the first and second dust exhaust ports 10 and 11 to the outside of the machine. It is designed so that it will be done.

A first screw conveyor 13 for supplying the threshed grains leaked from the wall portion 6c with through holes to the base end of the thrower cylinder 5 is provided below the conveyance device 8, and a dust exhaust port of the handling chamber 1 is provided. The processed material from 1b is transported to the rear of the machine by the cooperation of the net gutter-like body 14a and the rotating spiral body 14b, grains are sorted and leaked from the gutter-like body 14a, and dust is removed from the exhaust port 15 through the fan 16. A conveying device 14 is provided above the conveying device 8 to discharge the grains out of the machine together with the sorting air generated by the air. The grains mixed in the material to be processed from the handling chamber dust outlet 1b are supplied to the thrower cylinder 5 together with the grains from the transport device 8.

The suction type fan 9 can be changed to a blower type fan that supplies sorting air to the conveying device 8 from its starting end.

The spiral body 7 can be changed to a strip plate or a square rod formed into a spiral shape, and these are collectively referred to as the spiral rod-shaped body 7.

The characteristic configuration of the threshing sorting device according to the present invention is that a device 8 transports the processed material from the handling chamber 1 by cooperation of a cylindrical body 6 and a spiral rod-shaped body 7 installed inside the cylindrical body 6 so as to be rotatable. A threshing wall part 6b is provided on the peripheral wall of the cylindrical body 6 to re-thresh the conveyed material by cooperation with the spiral rod-like body 7, and a threshing wall part 6b for re-threshing the conveyed material by cooperation with the spiral rod-shaped body 7, and a threshing wall section 6b for re-threshing the conveyed material by cooperation with the spiral rod-shaped body 7, A wall portion 6c with through holes for sorting and leaking is provided in a state where the wall portion 6c with through holes is located on the lower side of conveyance than the wall portion 6b for threshing, and the conveyance device 8 is provided at one end of the conveyance device 8. 8
A fan 9 is provided to supply the sorting air in the conveying direction, and at the end of the conveying device 8, exhaust ports 10 and 11 are provided for discharging the sorting air and dust to the outside of the machine.

In other words, the processed material from the handling chamber 1 is re-thrested by the cooperation of the threshing wall 6b of the cylindrical body 6 and the rotating spiral rod-shaped body 7. Since dust is removed by the sorting air and the threshing wall 6b and spiral rod 7 act efficiently on the grains, the processed material from the re-threshing section is agitated by the spiral rod 7. In addition to being sorted by specific gravity, it is also sorted by the sorting air.Furthermore, if the conveying device 8 is of a spiral rod type, the spiral rod 7 is less likely to become an obstruction to the air blowing, so the sorting air can be used by the conveying device. 8, and dust removal is performed extremely well in both the re-threshing section and the sorting section, so that as a whole, threshing and sorting of threshed grains can be carried out extremely reliably and efficiently. Summer. Furthermore, the re-threshing and sorting are performed in the process of conveying the threshed grains to the take-out section, and by making the conveying device 8 into a spiral rod type, the re-threshing section and the sorting section It has become possible to construct an extremely simple and compact structure, and it has become possible to obtain an economical advantage by being able to work efficiently, and it has also become possible to easily install and store it in a narrow space. .

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing sorting device according to the present invention, in which Fig. 1 is a longitudinal side view, Fig. 2 is a partially cutaway rear view, Fig. 3 is a sectional view taken along the - sectional arrow of Fig. 1, and Fig. 4 1 is a cross-sectional view taken in the direction indicated by the - arrow in FIG. 1, and FIG. 5 is a cross-sectional view taken in the direction indicated by the - arrow shown in FIG. 1... Handling room, 6... Cylindrical body, 6b... Wall for threshing, 6c... Wall with through hole, 7... Spiral rod-shaped body,
8... Conveyance device, 9... Fan, 10, 11...
Vent.

Claims (1)

[Scope of utility model registration request] A device 8 is provided for transporting the processed material from the handling chamber 1 through cooperation between a cylindrical body 6 and a spiral rod-like body 7 installed inside the cylindrical body 6 so that it can be driven and rotated. , a threshing wall portion 6b for re-threshing the conveyed material in cooperation with the spiral rod-shaped body 7, and a wall portion 6c with a through hole for selectively leaking the threshed grains in the conveyed object to the outside of the cylindrical body 6. , the through-hole wall portion 6c is provided in a state on the lower side of conveyance than the threshing wall portion 6b, and a sorting air in the conveyance direction is supplied to one end of the conveyance device 8. Juan 9
The threshing sorting device is characterized in that the conveying device 8 is provided with exhaust ports 10 and 11 at the terminal end of the conveying device 8 for discharging sorting air and dust to the outside of the machine.