JPS59173017A - Threshing apparatus in general type combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a threshing device in a conventional combine harvester, in which the husk harvested by the reaping section is sent into the handling barrel of the threshing device for threshing.

The ordinary combine harvester called the Slerasha type is
The shell culm sent into the handling drum chamber is processed by a handling drum that is pivoted inside the handling drum chamber, and the grains from the threshed product are processed by a receiving net that forms the peripheral wall of the handling drum chamber. and from the sieve onto the upper surface of a swinging sorting shelf which is swingably mounted below the handling barrel room, and is sorted by the swinging sorting shelf and the sorting wind blowing through the swinging sorting shelf, The waste culms in the threshed material are discharged from the dust outlet located on the bottom side of the rear end of the handling barrel chamber, and the waste culms discharged from the dust outlet are shaken and sorted. Sorting that falls onto the upper surface of the rear end of the shelf surface of the shelf, reduces the function of the swing sorting shelf, and blows through from the lower part of the front end of the swing sorting shelf to the upper part of the rear end. There was a problem in that it impeded the flow of the wind and reduced the efficiency of wind selection.

The present invention was made in order to solve this problem, and the waste culms discharged from the dust exhaust port installed at the rear end of the handling barrel chamber move over the shelf surface of the swing sorting shelf. The sorting function of the swinging sorting rack is improved so that the straw waste is sent to the rear end side and discharged to the rear of the combine body, and the straw waste is discharged to the rear of the combine body through another route. The object of the present invention is to propose a new means for improving the wind selection function by the sorting wind that blows through the swinging sorting shelf from the bottom side to the top side.

In order to achieve this object, the threshing device for a conventional combine harvester according to the present invention is provided with a dust exhaust port in the upper part of the side surface of the peripheral wall of the handling barrel chamber, and a dust exhaust port is provided on the outside of the dust exhaust port in the upper part of the side surface of the peripheral wall of the handling barrel chamber. The present invention is characterized in that a guide gutter is installed above the swinging sorting shelf installed to guide the waste culms discharged from the dust exhaust port toward the rear of the combine harvester body.

Next, embodiments will be described in detail with reference to the drawings.

In the figure, a is a reaping part mounted on the front end of the body of a normal combine harvester A, and b is a reaping part located behind the reaping part a to thresh the grain culm harvested by the reaping part a. The figure shows a threshing device mounted on the

The reaping part a includes a grass cutting body 01), a reel α2, and a cutting blade mechanism 03.
), pickup drum (14), culm transfer device (15)
) etc. are mounted on the frame (10), and the reel (1
2, the root part of the culm separated by the weed cutting body (11) is cut and harvested by the cutting blade mechanism (13), the cut culm is raked up by the pickup drum θ4), and the culm is removed from the husks. The culm transfer device (151) is used to feed the culm in the rearward and upward direction. (22
is mounted with its axial direction running in the front-rear direction, and at the bottom of its handling trunk chamber (22) there is a blower blower installed at the bottom of the front A sorting air passage 04 that blows the sorting air toward the rear upper part) and a swinging sorting shelf (two) that swings back and forth are installed, and the lower surface of the front end of the handling barrel chamber (22) is installed. A culm reception port (26) provided on the side is provided with a culm receiving port (26) for transporting the grain culms sent by the culm transfer device (19) of the reaping section a into the handling barrel chamber (22). A beater (27) is installed, which allows the feeder to be fed into the reaping section a.
A normal type (slerasher type) combine harvester A is constructed in which the husk harvested at the reaping section a' is received in the handling barrel chamber (221) and threshed.
2, the first half of the peripheral wall surrounding the handling cylinder Qυ is formed by a receiving net (22a), and the second half is formed by a sheave (22b). Moreover, between the lower surface of the rear end of the handling barrel chamber (22) and the upper surface of the rear end of the swing sorting shelf (25), the straw waste of the residue sorted by the swing sorting shelf Q is stored. In addition to discharging to the rear of the fuselage of combine A, there is an outlet (formed in two barrels) that discharges the sorting air flowing through the sorting air passage (24).

(3) is the exhaust mO installed at the rear end of the handling barrel chamber (22), and is the sheave (2) that constitutes the peripheral wall of the handling barrel chamber (22).
2b) The upper end of the side surface of the rear end is formed so as to be open laterally, and a casing-like part is formed outside the dust exhaust port (3) with a gap d (40). A guide gutter (4) is installed so as to protrude rearward.

In the embodiment shown in FIGS. 1 and 2, the dust exhaust port (3) and the guide gutter (4) are located at the upper sides of both left and right sides of the rear end of the peripheral wall of the handling barrel chamber (22). Although they are provided symmetrically in pairs on the left and right, there are cases in which they are provided only on one side of the left and right, as in the embodiment shown in FIGS. 3 and 4.

In Figures 1 and 2, 15) is the dust exhaust port (3).
The guide gutter (4) is configured to forcibly scrape out the culms discharged from the guide gutter (4) into the guide gutter (4) toward the open opening (41) at the rear end of the guide gutter (4). The scraping body is supported by a gear case (6) provided at the shaft end of the rotating shaft (21a) of the handling cylinder (21) so that it is driven and rotated by the rotating shaft (21a). The drive shaft 5ω rotates in the direction of the arrow in FIG. The drive shaft 60) is equipped with a conduction pulley 51) at the end of the shaft to transmit power to the input shaft (23a) of the sorting section, thereby generating a PTO for driving the sorting section.
It also serves as the axis.

In the embodiment shown in FIGS. 1 and 2, the scraping body f51 that is pivotally supported in the guide gutter (4) is shaped like a rotary impeller that rotates about the horizontal axis, but in the embodiment shown in FIGS. As in the embodiment shown in FIG. 4, it may be constructed in the shape of a rotary impeller that rotates about a vertical axis.

(421 is an opening port (41) of the above-mentioned guide gutter (4) that opens toward the rear of the combine harvester, and controls the discharge direction of the exhaust culm discharged from the opening port (4I) as desired. The guide plate is provided so that it can freely rotate left and right in plan view about the support shaft (4 rows), and is held at a desired inclination angle by an appropriate retainer.

In addition, in the implementation rows shown in FIGS. 3 and 4, (7)
is a suction blower consisting of a cross-flow fan installed at the inside position of the discharge port (281) formed between the rear end of the handling barrel chamber and the rear end of the swing sorting shelf (c). .

Next, to explain the function and effect, in the threshing device of the conventional conventional combine harvester, the dust outlet W for discharging the waste culms, which are the residue of the processed husks in the handling barrel, is shown by the chain line in Fig. 1. As shown in FIG.
Falling onto a), the swinging sorting shelf C! The threshing device in the combine harvester of the present invention having the above-mentioned structure reduces the sorting performance of (2) and also impairs the flow of the sorting air flowing through the sorting air passage (24), thereby reducing the wind sorting performance. The dust exhaust port (3
) is discharged to the side of the handling trunk chamber CI'21, and is discharged from the guide trough (
As a result of 4), the straw waste is discharged from the rear end of the swing sorting shelf (c) to the rear of the fuselage of combine A, separated from the straw waste that is discharged to the discharge port (to). , the culm is removed from the upper surface of the swinging sorting shelf C and the inner part of the discharge port (to) which is the end of the sorting air passage (24), and the air sorting and swinging in the sorting air passage C24 is performed. Sorting shelf (
) can improve the sorting performance.

Further, the discharge port (28) formed between the rear end of the handling barrel chamber (22 and the rear end of the swing sorting shelf C5) is connected to the swing sorting shelf (C5).
Since the culms do not fall onto the upper surface of the 251, the upper and lower widths can be made narrower, so the height of the combine harvester can be lowered.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional side view of a combine harvester in which the present invention can be implemented, FIG. 2 is a cross-sectional plan view of the main parts of the same, FIG. 3 is a vertical cross-sectional side view of another embodiment, and FIG. 4 is a cross-sectional side view of the main parts of the same. FIG. Explanation of drawing symbols A... Ordinary combine harvester a... Reaping part b...
Threshing device 10... Frame 11... Grass cutting body 12... Reel 13... Cutting blade mechanism
14... Pick-up drum 15... Culm transfer device 20... Airframe frame 21... Handling barrel
21a... Rotating shaft 22... Handling barrel chamber 22
a... Reception net 22b... Sheave Z3... Tang winch blower 23a... Human power shaft U... Sorting air path 5
...Swinging sorting shelf 5a...Straw rack 26...
・Culm inlet 27... Beater path... Discharge port 3... Dust outlet 4... Guidance trough 40... Partition wall 41... Opening port 42... Guidance plate
43... Support shaft 5... Scraping body 50... Drive shaft 51... Conduction pulley 6... Gear case
7...Suction blower W...Dust exhaust port

Claims (1)

[Scope of Claims] fil A dust exhaust 1" is provided above the side surface of the peripheral wall of the handling barrel chamber, and outside of the dust exhaust port, above the swinging sorting shelf provided below the handling barrel chamber, A threshing device for a conventional combine harvester, characterized by being equipped with a guide gutter that guides waste culms discharged from a dust exhaust port toward the rear of the fuselage of the combine. (2) A threshing device for a conventional combine harvester as set forth in claim 1, characterized in that a culm scraper that rotates on a horizontal axis is mounted in the guide trough. (3) A threshing device 0 for a common type of ash harvester according to claim 1, characterized in that a culm scraping body rotating on a vertical axis is mounted in the guide trough.