JPS5823219Y2 - Scattered grain return device in combine harvester - Google Patents

Description

[Detailed description of the invention] In a combine harvester, an inlet plate is provided below the supply port of the threshing device to receive the husk harvested by the reaping device and transferred by the conveyance device and guide it to the supply port. Even if a scattering prevention plate made of a plate or the like is installed, grains scatter and accumulate on the entrance plate from the handling room, and when the aircraft tilts or vibrates, they fall to the ground and straw waste, grains, etc. are deposited on the entrance plate. When a large amount of carbon dioxide was deposited, the inlet became narrow and the feeding posture of the culm was disturbed.

Previously, this had to be pushed into the handling room by hand, which was extremely dangerous.

The purpose of the present invention is to improve the above-mentioned drawbacks by providing a cover extending from the reaping device to the entrance plate, and removing the grains accumulated on the entrance plate at the rear of the cover by upward tilting of the cover. A cleaning body is installed vertically to return the machine to the handling room, and each time the reaping device is raised when the machine turns around, grains and straw debris accumulated on the entrance plate are cleaned and returned to the handling room. It is something to do.

The embodiments shown in the drawings will be explained in more detail below.
Reference numeral 1 denotes a threshing device mounted on a machine base having a traveling device, and in a handling chamber 2, a handling barrel 3 is mounted on a shaft with its axis in the front-rear direction. A scattering prevention plate 5 having flexibility is vertically provided, and an inlet plate 6 is provided at the bottom thereof to protrude forward.

7 is an entrance plate 6 which is supported by a pair of left and right columns erected on the machine base.
0 is a horizontal shaft supported by a lower leader, and supports the rear end of the reaping frame 8 so as to be tiltable up and down, and the front part of the reaping frame 8 is provided with at least a pair of left and right weeding bodies 9.9. Culm lifting frame 10,1
0 and a cutting blade 11 are provided, and a stock head clamping conveyor 12a and a ear side conveyor 12b are provided from above the cutting blade to the front of the supply port 4.

Further, the lower part of the reaping frame 8 has front and rear links 13a.

It is connected to the front part of the machine base 14 by 13b, and the front link 13a is connected to the piston of the hydraulic cylinder 15.

Then, the ear-side conveying body 12 is located above and behind the cutting blade 11.
A safety cover 16 is provided above the front part of the entrance plate 6 through between the control section and the control section, and a cleaning body 17 made of a brush or a flexible plate is vertically provided at the rear end of the safety cover 160. .

Next, to explain the action, the planted shell culm
The culm is separated and pulled up by the culm lifting frames 10, 10, and then the stem part is cut off by the cutting blade 11, and the cut culm is moved backward by the plant head holding carrier 12a and the panicle side carrier 12b. Although the grains are transported, the terminal end of the grain-side carrier 12a faces the starting end of the feed chain of the threshing device 1, while the rear part of the ear-side carrier 12b is offset toward the center of the supply port 4. Therefore, the culm is supplied to the threshing device 1 in a state of lying on its side.

During the threshing operation, the grains that randomly return inside the handling chamber 2 enter the handling chamber 2 because the husk does not push them up even with the scattering prevention plate 5, so they fly out from the supply port 4 and onto the entrance plate 6. It is deposited together with straw waste.

When the harvesting frame 8 is pushed up by the hydraulic cylinder 15 in order to turn the machine when it reaches the edge of the ridge after performing such threshing work, not only the stock head clamping carrier 12a and the ear side carrier 12b but also the safety cover 16 are removed. It tilts up and down about the horizontal shaft 7 integrally with the reaping frame 8.

At this time, the cleaning body 17 at the rear of the safety cover 16 is as shown in FIG.
As shown in b, c, and d, grains, straw waste, etc. accumulated on the entrance plate 6 are swept into the handling chamber 2.

This sweeping action by the cleaning body 17 is performed every time the aircraft is turned.

The safety cover 16 not only covers and protects various transmission engines, but also guides the culm being transported.

As mentioned above, the present invention includes a reaping device that tilts up and down centered on the rear part of the threshing device mounted on the machine base, and the lower part of the supply port of the threshing device extends from the reaping device onto the protruding entrance plate. A cover is provided, and a cleaning element is installed vertically at the rear of the cover to return the grains accumulated on the inlet plate into the handling chamber by the upward tilting of the cover. Also, straw waste, etc., is pushed back into the handling chamber by the cleaning body every time the reaping unit is raised and tilted when the machine is carried around the edge of the field, thereby preventing grains from falling from the entrance plate to the ground. In addition, the amount of accumulated straw waste does not become a dog and obstruct the supply of shell culm, and the supply on the ear side is delayed and the handling teeth pull out or cut the shell culm into the handling chamber. can be prevented as much as possible.

[Brief explanation of drawings]

The drawings show two embodiments of the present invention, in which Figure 1 is a side view of the main parts, Figures 2 and 3 are perspective views, and Figure 4 a.
, b, c, and d are explanatory views of the operation of the safety cover and the cleaning body. 1... Threshing device, 2... Handling room, 4...
...Supply port, 6...Inlet plate, 8...
・Reaping frame, 15...Hydraulic cylinder 16...
... Safety cover 17 ... Cleaning body.

Claims (1)

[Scope of utility model registration request] A reaping device that tilts up and down centering on the rear part is attached to the front part of the threshing device mounted on the machine base, and a cover is provided that extends from the reaping device to an entrance plate from which the lower part of the supply port of the threshing device protrudes. A scattering grain return device for a combine harvester, characterized in that a cleaning body is vertically installed at the rear of the harvester to return grains accumulated on an entrance plate into a handling chamber by upward tilting of a cover.