JPH02200115A - Combine - Google Patents

Abstract

PURPOSE:To prevent the lowering of the recovery efficiency of the first grade grains by enabling to switch the second grade grains recovered in a second grain-recovering device to either of a state wherein the second grade grains are returned to a thresher and a state wherein the grains are fed into a second grade grain-storing tank. CONSTITUTION:Grain granules with branches, etc., discharged from a straw rack 26 and a grading belt 25 are carried to a second grain-treating rotor 31 to form single grains, and the grains, etc., are recovered to a second grain- recovering device 33 through a punching metal. The second grade grains laterally carried with a device 33 are lifted with second carrying device 37 and fed into a second grade grain-storing tank 38 through the outlet 37a of the second carrying device 37 by swinging a second grade grain-carrying direction- switching device 41 in the right direction about a lateral shaft core. The device 41 is swung in the left direction to return the second grain granules discharged from the outlet 37a to the straw rack 26 through a duct 40 for the re-treatment of the second grain granules.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a structure for processing second grains recovered from a sorting section of a threshing device in a combine harvester.

[Conventional technology]

In a combine harvester, grain is threshed and sorted and collected as first and second grains.
As disclosed in Publication No. 9846, the collected second grains are processed into single grains using a special handling cylinder and returned to the sorting section of the threshing device, or the second grains are directly returned to the threshing section of the threshing device. Some devices are configured to do this.

[Problem to be solved by the invention]

Generally, it is difficult to separate grains into single grains when the grains contain moisture, such as after rain, so the second grain collected as described above is returned to the sorting section or threshing section of the threshing device to remove uncollected grains. It is preferable to mix it into the first crop when the grain to be harvested is sufficiently dry and under favorable conditions.

However, even if the grain contains moisture as in the disclosed structure, if the recovered second grain is returned and mixed into the grain that is being sorted or threshed, the grain will be in a state where it is difficult to make it into single grains. The wet second material that is returned makes it even more difficult to form single grains.

The present invention has been made in view of the above-mentioned problems, and is aimed at preventing a decrease in the collection efficiency of grains when the grains contain water.

[Means to solve the problem]

The feature of the present invention is that the above combine harvester is configured as follows. In other words, it is equipped with a second article transfer destination switching device that can switch between returning the second article collected by the second article collection device into the threshing device and sending it into a tank for storing the second article. In particular, its functions and effects are as follows.

[For production]

With the above-mentioned configuration, if the grain contains moisture, the second grain can be sent to the tank.

This prevents wet second grain from being thrown back into the grain being sorted or threshed. The second material stored in the tank can be reprocessed after drying.

Also, if the grain to be harvested is dry, 2.
All that is required is to return the grains to the threshing machine.

〔Effect of the invention〕

As described above, by configuring the structure so that the collected second grains can be temporarily stored in the tank when the grains contain moisture, the second grains collected in the grains during sorting or threshing can be stored.
This prevents grains from getting in, making it possible to suppress the decline in collection efficiency of grains when the grains contain moisture.

〔Example〕

Hereinafter, examples of the present invention will be described.
A combine harvester for buckwheat will be explained based on the drawings.

As shown in Figure 3, a reaping section (1) is arranged at the front of the machine, and this reaping section (1) is equipped with a rotary scraping reel (
2), a clipper-type reaping device (3), an auger (4) that collects the cut culms, a feed conveyor (5) that sends the culms upward, etc. A support part (8) is fixed to the front part of a vehicle body frame (7) equipped with a pair of left and right crawler traveling devices (6), and the cutting is performed around the horizontal axis (Pl) of this support part (8). The part (1) is attached to be able to move vertically, and a hydraulic cylinder (
9) is provided.

In the crawler traveling device (6), as shown in FIG.
) is vertically movably supported by a pair of front and rear bell cranks (6c), and an interlocking link (6d) is installed across both bell cranks (6c). A hydraulic cylinder (6e) is attached to one bell crank (6c). This allows the left and right hydraulic cylinders (6
e) manually or automatically to extend and retract the crawler traveling device (6
) can be moved up and down independently to the left and right to control the attitude of the aircraft.

and a feed conveyor (5) in the reaping section (1).
is structured as follows. In other words, as shown in Figure 3.4.5, a pair of chains (5a) are connected to the upper and lower drums (
5b), and a conveying body (5c) for conveying the culm is installed across both chains (5a). This conveyor (5c) has a shape like a plate bent into a U-shape, and a protrusion (5d) narrower than the left and right width of the feed conveyor (5) extends along the width direction of the feed conveyor (5). They are provided on the carrier (5c) in a staggered manner and in a staggered posture.

With the above structure, the grain culms that have been gathered to the feed conveyor (5) side by the auger (4) are transferred to the chain (5a).
) and a conveyor (5c) that is rotationally driven by a protrusion (5d)
) on the lower guide plate of the feed conveyor (5) (
, 10) and the feed conveyor (5), and is sent to the shell culm discharge port (11).

Then, from the bottom of the auger (4) feed conveyor (5)
), or during transportation, the culm, which was facing sideways or diagonally, turns its tip toward the culm outlet (11),
The posture is changed along the conveyance direction of the feed conveyor (5). Further, the guide plate (lO) is a punched metal type having a large number of holes, so that fine straw waste etc. can leak out.

The culms that have come out of the culm discharge port (11) as described above are discharged onto a supply conveyor (13) by a rotationally driven beater (12) as shown in FIG. Then, the husks are sent from this supply conveyor (13) into a handling room (14) where they are threshed, and the structure thereof will be described in detail next. As shown in FIGS. 3 and 6, the supply conveyor (13) has a pair of rollers (13a) and (13b).
) has a structure in which a rubber belt (13c) is wound around it, and the entire supply conveyor (13) moves up and down around the fulcrum (P, ) of the roller (13a) on the culm discharge port (11) side. and is urged upward by a spring (42).

Furthermore, as shown in FIG. 6, a pinching roller (15) is also arranged above the roller (13b) on the handling chamber (14) side. This has a structure similar to a metal cylinder covered with rubber, and is rotated clockwise in the drawing at a speed lower than the feed speed of the supply conveyor (13). and,
In the conveying direction (A) of the supply conveyor (13), the position of the roller (13b) of the supply conveyor (13) is moved back to the left in the plane of the paper relative to the position of the pinch roller (15). The first exit (14a) is made wider.

Next, to explain the structure inside the handling chamber (14) in detail, as shown in FIGS. is driven in rotation. Rasp teeth (16a) inclined with respect to the rotational direction are attached to this handling cylinder (16) while alternating the direction of the rasp teeth.

The eleventh second and third ceiling plates (17), (18), and (19) forming the upper surface of the handling chamber (14)
6) is provided along the top surface. The 11th second and third ceiling panels (17), (18), and (19) can be swung upwards around their respective horizontal axes (P4)-(Pl)-(Ps) and retracted. Attached and spring (20).

It is urged downward by (21) and (22).

Further, in the second and third ceiling panels (18) and (19), round bars (1) are arranged along the left and right direction of the handling room (14).
8a).

(19a) are attached at intervals.

With the above structure, as shown in Fig. 6, the culms that are sent by the supply conveyor (13) with the tips facing right in the paper are fed by the roller (13b) and the pinching roller (15).
while being crushed between the roller (13b)
Due to the speed difference between the paper and the pressure roller (15), the paper is not crushed and is fed into the handling chamber (14). Then, the handling torso (1
6) rotation from bottom to top and the rasp teeth (
Due to the squeezing and kneading action by step 16a), most of the grains become single grains and fall from the first outlet (14a) of the handling chamber (14). In addition, grains with branches that have not been sufficiently made into single grains are sent upward so as to become entangled with the handling cylinder (16), and are sent to the handling cylinder (16) and the first, second, and third ceiling plates (17). .

It is rolled between (18) and (19) to become a single grain,
from inside the handling cylinder (16) or the second exit (14) of the handling chamber (14).
It falls from b).

Next, to explain in detail the structure for sorting the processed materials that fall from the handling room (14), as shown in Figure 3, a guide plate (24) is placed under the sorting plate (23) of the bamboo basket. and
Both (23) and (24) are integrally driven to swing. As a result, the grains that have fallen onto the sorting plate (23) leak onto the guide plate (24) due to their rocking action, are sent to the right side of the page, and fall onto the sorting belt (25), while straw waste and The grains with branches are sent to the right side of the page by a sorting plate (23) and a straw rack (26).

The sorting belt (25) is driven to the right side in the paper, and the small straw waste that has fallen onto the sorting belt (25) together with the grains is removed by the feeding action of the sorting belt (25) and the winnower (27). The air is blown to the right on the page by the air blowing action.

Further, a wind direction plate (28) for adjusting the direction of air is provided for the winnow (27).

On the other hand, the culm that has fallen onto the sorting belt (25) rolls downward regardless of the feeding action of the sorting belt (25) and is collected by the No. 1 screw (29). Also, depending on the type of culm to be harvested, a sorting belt (25
) can also be reversed to the left side of the page.

Then, the stroke rack (26) and the sorting belt (25)
) The grains with branches that come out of the machine are sent from the guide plate (30) to the second aromatic processing rotor (31) as shown in Figure 3, where they are single-grained and the grains, etc. are passed through a punching metal. (32
) leaks and is collected by the No. 2 screw serving as the No. 2 material collection device (33). In addition, the straw waste that did not leak from the punching metal (32) is transferred to the second aroma treatment rotor (31).
) is sent by the rotational action and is discharged outside the machine.

Next, screw No. 1 (29) and screw No. 2 (3
3) To explain in detail the processing of the No. 1 and No. 2 items collected by (34
) is fed into the first hopper (35) and stored. In addition, the bottom surface of the No. 2 screw (33) is a punching metal (36), and fine straw scraps etc. are collected from this punching metal (36) during conveyance by the No. 2 screw (33).
6) The punching metal (36) is constructed so as to leak downward, and the punching metal (36) can be opened downward around the horizontal axis CP, ).

The second object sent laterally by the second screw (33) is sent to a second hopper serving as a second storage tank (38) by a second conveying device (37). Also, 2
The panel (39) on the way from the number screw (33) to the second conveyance device (37) can also be opened downward to allow internal maintenance. As shown in FIGS. 1 and 2, a duct (40) leading from the second hopper (38) to the straw rack (26) is provided, and an outlet (37a) of the second conveying device (37) is provided. is equipped with a shutter as a second object transfer destination switching device (41) that can be freely swung around the horizontal axis (p).

In the state shown in FIG. 1, the shutter (41) is connected to the exit (37a).
) is operating on the left side of the paper, and the exit (37a
) is stored in the second hopper (38). Conversely, if you operate the shutter (41) to the right side of the paper, the second object coming out of the exit (37a) will be the duct (40
) and returned onto the straw rack (26) for reprocessing.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the combine harvester according to the present invention, and FIG. 1 is a longitudinal cross-sectional rear view of the vicinity of the No. 2 screw and the second hopper;
Figure 2 is a cross-sectional plan view of the No. 1 and No. 2 screws and the vicinity of the first and second hoppers, and Figure 3 is an overall side view of the combine.
Figure 4 is a cross-sectional plan view of the vicinity of the auger and feed conveyor entrance in the reaping section, Figure 5 is a longitudinal side view of the auger and feed conveyor entrance vicinity of the reaping section, and Figure 6 is a vertical cross-sectional side view of the end of the supply conveyor and the inside of the handling room. FIG. 7 is a cross-sectional plan view of the end of the supply conveyor and the interior of the handling chamber. (33)...Second item collection device, (38)...
...Tank for storing second items, (41)...2
Item transport destination switching device. Figure 1

Claims (1)

[Claims] A second item transfer destination switching device that can switch between returning the second item collected by the second item collection device (33) into the threshing device and sending it into the tank (38) for storing the second item. (4
A combine harvester equipped with 1).