JP2610429B2 - Combine threshing equipment - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to an apparatus for threshing ordinary combine harvesters used for harvesting grains such as rice, wheat and legumes.

`` Prior art '' Conventionally, as shown in Japanese Utility Model Application Laid-Open No. 62-68536, a receiving net is provided below the handling cylinder, a swing sorter is provided below the receiving net, and a sorting end portion at the rear end of the swing sorter is provided. There is a technology in which a third port is formed on the rear side to discharge straw waste generated by threshing of the handling cylinder from the third port.

[Problems to be Solved by the Invention] In the prior art, the rear end of the handling cylinder is extended rearward from the sorting end of the swing sorting machine, and the dust discharge rotation is provided on the swing sorting machine in front of the receiving net rear end. Since the body is provided, only by processing the straw waste on the swinging sorting machine, the straw waste falling from the rear end of the handling cylinder and the receiving net is released directly from the third opening, and At each rear end, there is a problem that the grains mixed in the straw waste are easily released from the third mouth, and it is not easy to reduce the loss at the third mouth and to improve the threshing efficiency.

Means for Solving the Problems According to the present invention, however, a receiving net is provided below the handling cylinder, a swing sorting machine is provided below the receiving net, and a swing sorting machine is provided at the rear end of the sorting end portion at the rear end of the swing sorting machine. In a combine threshing device that forms a gate and releases straw waste generated by threshing of the handling cylinder from the third gate,
Position the rear end of the receiving net forward of the rear end of the cylinder and the swing sorting machine sorting end, and between the rear end of the receiving net and the third opening between the rear end of the handling cylinder and the swing sorting machine sorting end. A dust exhaust passage is provided to move the straw chips falling below the rear part of the handling cylinder to the third port by the dust exhaust rotating body through the back of the receiving net and above the end of the sorting machine. It is characterized by having been formed.

"Operation" Therefore, the dust falling from the rear end of the handling cylinder and the receiving net is released to the 3rd exit while being dislodged by the dust rotating body, so that the grains mixed in the straw dust are discharged. It can be collected by dropping it on a rocking sorter from the middle of the passage, and it can easily prevent the kernels from being released from the rear end of the handling cylinder and receiving net to the third mouth, and the loss of the third mouth can be reduced. In addition to reducing waste and improving threshing efficiency, straw chips from the rear end of the handling cylinder and the rear end of the swinging sorting machine are dispersed by the blast action of the dust discharge rotating body, etc. Can be easily prevented from being released as a lump from the third mouth, and the threshing / dust processing function at the third mouth can be easily improved.

Embodiment An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional side view of a main part, FIG.
The figure is the same plan view, in which (1) is a traveling crawler (2).
Is mounted on a truck frame (3), (4) is a threshing unit equipped with a screw-type handling cylinder (5) and a sorting mechanism (6) and mounted on the machine (1), and (7) is a lifter. Grain (8)
A grain tank for storing the grains of the threshing unit (4) taken out through the threshing unit (9), a cutting unit (9) provided at a lower front of the threshing unit (4) so as to be able to ascend and descend through a hydraulic cylinder (10); ) Is a driver's cab provided with a driver's seat (12) and a driving operation unit (13) and fixed in front of the grain tank (7), and (14) is provided behind the grain tank (7) and has an engine. (15)
(16) is the grain tank (7)
This is a grain export auger that takes out the grains inside.

The cutting section (9) is provided with a grain header (17) for taking in uncut grain culm, and a supply for connecting the cut header to the approximate center of the rear of the header (17) to feed the cut grain culm to the threshing section (4). The grain header (17) includes a chamber (18), and a reel (19) for retrieving uncut stalks, a reciprocating drive type cutting blade (20), and a stalk squeezing drum (21). The harvested culm taken into the header (17) is fed to the threshing unit (4) via a supply chain conveyor (22) provided in the supply chamber (18) to perform threshing.

A second reduction cylinder (23), which is a grain transport device, is arranged in a protruding shape on the left outside of the threshing unit (4), and the second processed product is returned to the upper part of the sorting mechanism (6) to be sorted again. It is provided as follows.

As shown in FIG. 1, the screw-shaped handling cylinder (5) has a body (24) having a length substantially equal to the front-rear length of the threshing section (4), and is radially wound around the body (24). A screw blade (25), which is a toothed tooth to be erected on the screw-shaped operating drum (5).
The handling chamber (27) communicating with the supply chamber (18)
8) The front end of the handle cylinder (5) and the rear end of the handle cylinder (5) face the exhaust port (29) on the rear side of the handle chamber (27). The net (30) is stretched, and the whole harvested culm is thrown in through the supply chamber (18) to thresh.

A swinging sorter (31) constituting the sorting mechanism (6);
A feed pan (34) that supports the sorter (31) so as to be swingable in the front-rear direction via swing links (32) and (33), and is positioned below a front portion of the handling drum (5). A first chaff sheave (35) capable of adjusting the amount of grain leakage, and a first sorting net (36) provided below the chaff sheave (35);
Sieve line (37) connected to the rear side of the chaff sheave (35)
And a mountain-shaped straw rack (38) extending rearward below the sieve line (37), and the first and second streams facing the lowermost sorting net (36) and the straw rack (38), respectively. Grains (39) and (40) are provided on the sorting board (31).

Further, a dust removal fan (41) for supplying a sorting wind to the upper surface of the feed pan (34), a Karamin fan (42) for supplying a sorting wind to the first-flowing grain board (39), and a first-moving grain board (41). The first gutter (4) that receives the grain from 39) and sends it out to the fryer (8)
3) and the first conveyor (44), the second sorting fan (45) that supplies the sorting wind to the second flow grain plate (40), and the second reduction of the reductant from the second flow grain plate (40) The second gutter (46) and the second conveyor (47) to be sent out to the cylinder (23), and the sorting board (31)
A third opening (48) facing the rear end, an orthogonal processing cylinder (49) facing obliquely above the straw rack (38) and below the dust outlet (29), and a processing cylinder (49). ) And a processing cylinder concave (50) disposed at the front lower side of the container, and sends out the grain taken out on the first gutter (43) to the tank (7), and removes straw chips and dust from the third port. (48) It is configured to discharge more out of the machine.

As shown in FIGS. 4 and 5, the trunk (24) at the other end of the handle cylinder (5) is formed in a frusto-conical shape, that is, a tapered surface (24a) having a tapered rear end. 24a) so that the processing cylinder (49) is inserted into the portion, so that the tapered surface (24a), the processing cylinder (49), and the rear end of the oscillating sorter (31) overlap vertically. It is arranged. And a rear end inclined portion (38a) formed at a rear downward slope of the rear end of the straw rack (38) is continuously provided along the outer periphery of the processing cylinder (49) in an extended line of the rear end of the concave (50), The tapered surface (24) which continues in series on the front side of the processing cylinder (49)
a). Concave (50). A character-shaped dust discharge passage (51) is formed between the rear inclined portion (38a) of the straw rack (38) and the processing cylinder (49) as shown by a white arrow in FIG. ing.

As is clear from the above, the receiving net (3
0), and a swing sorting machine (31) below the receiving net (30). A third opening (48) is formed at the rear end of the sorting end of the swing sorting machine (31). In a combine threshing device for discharging straw waste generated by threshing of the trunk (5) from the third mouth (48), a receiving net is provided forward of the rear end of the handling cylinder (5) and the swinging sorter (31) at the sorting end. (30) Position the rear end and handle cylinder (5)
Receiving net (30) between the rear end and the oscillating screen (31)
Between the rear end and the third opening (48), the processing drum (4
No. 9) is installed, and the processing waste (49) passes through the receiving net (30) behind and the swing sorting machine (31) above the sorting end by the processing cylinder (49) to remove the straw chips falling below the rear part of the handling cylinder (5). A dust passage (51) to be moved to (48) is formed, and the rear end of the handling cylinder (5) and the receiving net (30)
The straw chips falling from the rear end are released by the dust rotator (49) into the third opening (48), and the grains mixed in the straw chips are shaken from the middle of the dust passage (51). Drop it on the moving sorter (31) to collect it, and prevent the kernels from being released from the rear end of the handling cylinder (5) and the receiving net (30) to the third opening (48). Gate (48) To reduce loss and improve threshing efficiency, etc., and remove dust from the rear end of the cylinder (5) and the rear end of the oscillating sorter (31) to raise the dust rotator (49). Dispersed by wind action and scattered outside the machine from the 3rd mouth (48) to prevent the litter from being released as a lump from the 3rd mouth (48) and threshing at the 3rd mouth (48) It is configured so as to improve the dust discharge function.

By the way, the rear side plate (5) of the processing chamber behind the processing cylinder (49)
2) is provided on the side plate (53) after threshing so as to be freely opened via a hinge (54), and the left and right side plates (56) holding the processing cylinder shaft (55) of the processing cylinder (49) are threshed left and right side plates (57). Through a guide (58) so as to be slidable back and forth.
3) When the processing cylinder (49) is opened, the processing cylinder (49) is taken out integrally with the left and right side plates (56) to the rear of the machine body, and the processing teeth (59) which are processing teeth implanted in the processing cylinder (49) or the processing cylinder (49). It is configured to allow the exchange of FIGS. 6 and 7 show an example of the toothing (59). FIG. 6 shows a U-shaped toothing (59a) obtained by bending a linear body into a U-shape. The structure shown in the figure is such that a spikeworth shaped tooth (59b) formed of a flat plate is fixedly supported on the processing cylinder (49) so as to be exchangeable via a fastening element (60).

The present embodiment is configured as described above, and takes in uncut grain stems through the reel (19) into the grain header (17),
The root of the uncut culm is cut by a cutting blade (20), and the cut culm is sent from a substantially central portion of the header (17) to a supply chamber (18) via a culm scraping drum (21). The cut culm is fed to a threshing unit (4) by a cut culm supply chain conveyer (22), and is successively threshed by a screw-type handling cylinder (5).
Sorting while dropping into cereal, only sieving grain tank (7)
And the contaminants discharged from the dust outlet (29) and the dust such as straw waste sent by the straw rack (38) are discharged into the processing dust chamber (49a) of the processing cylinder (49). , And thresh-processed, and discharges only foreign substances and dust without grains from the third port (48) outside the machine.

Thus, during the re-threshing operation in the processing dust chamber (49a), the rear end tapered surface (24) of the handling cylinder (5)
a). Concave (50) of processing cylinder (49). Since the rear end inclined portion (38a) of the straw rack (38) is disposed along the outer periphery of the series of processing cylinders (49), the contaminants discharged from the dust outlet (29) And the dusts sent by the straw rack (38) are satisfactorily merged without interfering with each other and sent into the dust chamber (49a), where the processing is performed to improve the threshing effect. it can. And in this case, the rear end of the handling cylinder (5) and the straw rack (38)
The processing cylinder (49) can be compactly assembled between the rear ends, and the inconvenience of increasing the size of the threshing unit (4) is also eliminated. As a result, grain loss can be prevented by means of extremely simple structure,
The dusting performance can be improved, and the threshing performance in the threshing unit (4) can be significantly improved.

In addition, since the processing cylinder (49) can be taken out of the processing cylinder, the processing cylinder (49) itself can be easily replaced, and the handling teeth (59) can be variously shaped. It can be easily replaced with a blade or the like corresponding to various working conditions, and the efficiency of this processing work can be improved.

FIG. 8 shows another modified structure example in which the processing cylinder (49) is provided so as to be able to be taken out to the left and right sides and the processing cylinder (49) or the toothing (59) can be replaced. The opening (62) of the processing cylinder (49) is opened on the right side plate (57) of the processing cylinder (49), and the side plate (63) for closing the insertion opening (62) is provided on the side plate (63). The right end of the trunk shaft (55) is supported, and the processing cylinder (49) is provided so as to be taken out to the right outside of the machine body integrally with the side plate (63), and has substantially the same operation and effect as the above-described embodiment. .

FIG. 9 shows still another modified structure in which a concave (50a) is arranged substantially all over the processing cylinder (49) below the processing cylinder (49). )
It is configured to reduce the grain loss of the foreign matter treated by the method and to improve the dust discharging property.

[Effects of the Invention] As is clear from the above examples, the present invention provides the handling cylinder (5)
A receiving net (30) is provided below, and a swing sorting machine (31) is provided below the receiving net (30). A third opening (48) is provided on the rear side of the sorting end of the swing sorting machine (31). In a combine threshing apparatus for discharging straw waste generated by threshing of the handling cylinder (5) from the third opening (48), a rear end of the handling cylinder (5) and a swing sorter (3)
1) Position the rear end of the receiving net (30) ahead of the sorting end, and connect the rear end of the receiving net (30) between the rear end of the handling cylinder (5) and the swing sorting machine (31) sorting end. A dust rotator (49) is placed between the 3rd opening (48), and the trash that falls below the rear part of the handling cylinder (5) is received at the back of the net (30) and the swing sorter (31). A dust passage (51) is formed to move to the third opening (48) by the dust rotator (49) through the upper part, from the rear end of the handling cylinder (5) and the rear end of the receiving net (30). Dust rotator (4
It is released to the 3rd exit (48) while being released by 9)
Grains mixed in the straw waste can be dropped on the rocking sorting machine (31) from the middle of the dust passage (51) and collected, and the rear end of the handling cylinder (5) and receiving net (30) can be collected. From the third mouth (48), the loss of the third mouth (48) and the improvement of threshing efficiency can be easily achieved. ) Straw chips from the rear end and swinging sorter (31) rear end can be dispersed by the blast action of the dust rotator (49) and scattered out of the third port (48) outside the machine,
Straw chips can be easily prevented from being released as a lump from the third mouth (48), and the threshing / dust processing function at the third mouth (48) can be easily improved.

[Brief description of the drawings]

Fig. 1 is a sectional side view of the threshing unit, Fig. 2 is an overall side view,
FIG. 3 is a plan view of the same, FIG. 4 is a partial side view of a threshing unit, and FIG.
6 and 7 are explanatory views of the processing body, and FIGS. 8 and 9 are explanatory views showing other modified examples. (5)… Handling cylinder (30)… Receiving net (31)… Swing sorting machine (48)… Third opening (49)… Processing cylinder (rotating dust body) (51)… Discharge Dust passage

Claims (1)

(57) [Claims] 1. A receiving net (30) is provided below a handling cylinder (5), a swing sorting machine (31) is provided below the receiving net (30), and a sorting end of a rear end of the swing sorting machine (31) is provided. A third opening (48) is formed on the rear side of the
In a combine threshing device that discharges straw debris generated by threshing of the handling cylinder (5) from the third mouth (48), it is received forward of the rear end of the handling cylinder (5) and the swing sorting machine (31) at the sorting end. Position the rear end of the net (30) and discharge it between the rear end of the receiving net (30) and the third opening (48) between the rear end of the handling cylinder (5) and the swinging sorting machine (31). Dust rotator (49) is installed and handling cylinder (5)
A dust passage (4) that moves the straw waste falling downward to the third port (48) by a dust rotator (49) through the back of the receiving net (30) and the swinging sorter (31) above the sorting end. 51) A combine threshing device characterized by forming (51).