JPH0123245Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention comprises a forced conveyance device for taking out the first processed material from a threshing sorting section configured to supply the entire harvested grain culm to a handling room, and a forced conveyance device for taking out the processed material from the forced conveyance device. The present invention relates to a structure of a grain conveying section of a combine harvester installed in a grain lifting device.

In the above-mentioned grain conveying section, conventionally, the conveyance end of the forced conveyance device is directly connected to the conveyance start end of the grain lifting device. When grains stay at the starting end of the grain device, the transfer force of the forced conveyance device presses the grains against each other, and the staying grains are also pressed against the grain lifting device, which may cause grain damage. It was hot. Particularly, in the case of relatively soft grains such as soybeans, there is a high possibility of breakage occurring.

The present invention makes it possible to prevent grains from being pressed by the forced conveyance device, thereby avoiding grain damage.Furthermore, with a simple modification that makes effective use of the structure for this purpose, soil mixed in grains can be removed. The purpose of the present invention is to efficiently sieve and remove foreign substances such as grains and collect grains of good quality.

The present invention provides, in the above-mentioned structure of the grain conveying section of the combine, a path 24 that allows the processed material from the forced conveyance device 23 to flow down to the grain lifting device 25 under its own weight, and on the bottom wall 28 of the path 24, It is characterized by being provided with a through hole 30 through which foreign objects can fall.

In other words, if the flow path 24 is provided, even if grains stay at the starting end of the grain lifting device 25, the grains from the forced conveyance device 23 will remain in the flow path 24 in a state where they are stacked on top of the staying grains. , since the weight of the deposited grains is only applied to those staying grains,
The pressing force due to the conveyance force of the forced conveyance device 23 no longer acts on the staying grains, making it possible to prevent grain breakage. When the grain flow is in a normal state, the grain layer in the downstream channel 24 becomes thinner than that in the forced conveyance device 23 due to the movement of the grains by their own weight, so that foreign substances such as soil mixed in are removed. Since the bottom wall 28 of the channel sinks and becomes easy to fall through the through hole 30, just by providing the through hole 30, foreign matter can be efficiently screened and discharged, and as a whole, the threshed grains are not crushed or mixed. It has become possible to recover the product in a high-quality state with few foreign substances while still being economically advantageous.

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

As shown in Figure 1, the entire harvested grain culm is placed in the handling room 1.
A threshing section configured to supply the grain to the grains, thresh it using a rotating handling cylinder 2, and send the processed material to the rear of the machine by a rotating rear beater 3, and a straw walker 4 that swings the processed material from the rear beater 3. Grain and straw waste are sorted while moving to the rear of the machine, and the processed material from the straw walker 4 is sorted by the sorting air from the winnow 6 while being shaken by the chaff sieve 5. A sorting section configured to sort the processed material into a No. 1 processed material and a No. 2 processed material using a grain sieve 7, and discharge straw waste etc. to the outside of the machine from a dust exhaust port 8 along with a sorting air; A tank section 9 for storing the processed material, a re-sorting section 11 configured to re-sort the No. 2 processed material supplied from the sorting section by the screw conveyor 10 and supply the grains to the straw walker 4, and , a driving unit 12, and a driving unit 13 are mounted on a self-propelled body having a pair of left and right driving front wheels 14, 14 and idle rear steering wheels 15, 15, and a platform is mounted forward from the self-propelled body. 16 as a fluid pressure cylinder 17
A divider 18 that extends vertically and swingably and separates the planted grain culm into objects to be reaped and objects not to be reaped, a rotating reel 19 that raises the object to be reaped, and a device for raising and reaping the grain culm. 20. The platform 16 is equipped with a rotary auger 21 for bringing the harvested grain culms to the left and right center portions of the platform 16, and a chain conveyor 22 for supplying the grain culms from the auger 21 to the handling room 1. It is configured.

To configure a conveyance section for supplying the first processed material from the sorting section to the tank section 9, as shown in FIG. 1, a screw conveyor type forced conveyance device 23 is provided below the grain sieve 7. , so that the first processed material from the sorting section is carried out to one side of the machine body, and as shown in FIGS.
A grain lifting device 25 connected to the discharge port of No. 3 is installed upright near the terminal end of the forced conveyance device 23, and the grain is flowed down the path 24 from the forced conveyance device 23 by its own weight to the lower part of the cylinder of the grain lifting device 25. The processed materials that flowed in and stagnated are
It is configured to be lifted by a bucket 26 of the grain lifting device 25 and discharged into the tank portion 9 by a discharge cylinder 27.

As shown in FIGS. 2 to 4, the bottom wall 28 of the flow path 24 is constructed by arranging a plurality of rod-shaped bodies 29 in the flow direction of the processed material in parallel with a gap formed between them. By configuring this, a plurality of elongated through holes 30 are provided in the bottom wall 28, and foreign matter such as soil mixed in the material to be treated is removed from the through holes 30 in the flow path 24. It is configured so that

Note that the outlet of the downstream path 24 is connected to the grain frying device 25.
If the opening is made in the path where the bucket 26 rises in an upward position so that the grains from the downstream path 24 are directly supplied to the bucket 26, damage to the grains caused by scooping by the bucket 26 can be avoided. This is advantageous because it is easier to do.

[Brief explanation of the drawing]

The drawings show an embodiment of the structure of the grain conveying section of a combine harvester according to the present invention, FIG. 1 is a longitudinal side view of the combine, FIG. 2 is a sectional view of the dead weight flow path forming section, and FIG. 3 is a cross sectional view of the dead weight flow path forming section. FIG. 4 is a cross-sectional view of FIG. 2 taken along the - arrow direction. 1... Handling room, 23... Forced conveyance device, 24...
Route, 25...Grain frying device, 28...Bottom wall, 30...
...through hole.

Claims (1)

[Scope of utility model registration request] A forced conveyance device 23 for taking out the first processed material from the threshing sorting section configured to supply the entire harvested grain culm to the handling room 1, and a grain lifting device 25 for the processed material from this forced conveyance device 23 are provided. A structure of a grain conveying section of a combine harvester, wherein the forced conveying device 23
Grain conveyance of a combine harvester, characterized in that a path 24 is provided to allow the processed material to flow down by gravity to the grain lifting device 25, and a through hole 30 is provided in the bottom wall 28 of the path 24 to allow foreign objects to fall. Department structure.