JPS6016286Y2 - Grain culm conveyor in combine harvester - Google Patents

Description

[Detailed description of the invention] Conventionally, in a combine harvester in which a plurality of culm conveying devices following a plurality of culm lifting paths are sequentially merged, there was no means for regulating the attitude of the ear side. In this case, the culm feeding passage on one side simply merged with that on the other side, so the panicle side bent and broke in each direction, so the culm feeding passage on both sides was Grain culms in the feeding passage enter each other, intersect with each other, and become entangled, which not only makes the conveyance of the husks unsmooth, but also causes split ears and husks to be drawn into the handling chamber when fed to the threshing device in this state. There were disadvantages such as increased number of occurrences.

The purpose of this invention is to improve the various drawbacks of the shell culm conveying device in the combine harvester described above, and it connects the shell culm feeding passages to the rear from the plurality of shell culm lifting paths at the front of the machine. and a panicle side conveyor and a plant head conveyor are arranged at the rear of these culm feeding passages, and the husk culm feeding passage on the negative side is connected to the husk culm feeding passage on the other side adjacent to the husk culm feeding passage on the other side. In the combine harvester, a cover is provided on the panicle side conveyor at the rear upper part of the culm feeding passage, and is inclined to guide the husk in a leaning position, and the culm feeding passage is Grain culm tilting guide rods for leaning the grain culm against the cover are installed on the upper and lower sides of the culm transfer direction of the confluence part of the culm, respectively, on the rear surface of the culm lifting body located closer to the feeding direction of the culm lifting path. It is characterized by extending obliquely from the shell culm feeding passage.

Hereinafter, the embodiment shown in the drawings will be described. Reference numeral 1 denotes a threshing device mounted on a machine base having a traveling device 2, and in front of the threshing device, three husk culm lifting passages are provided across the husk culm lifting passage. A reaping device 6 is provided, which includes frames 3, 3', 3'', a cutting blade 4 extending over almost the entire width of the machine, and a raking wheel 5 facing directly above the cutting blade 4. - side (left side when viewed from the front)
The culm feeding passage a that follows the culm lifting path formed between the culm lifting body 3 and the guide plate 3'a provided on the side surface of the adjacent culm lifting frame 3' has a culm feeding passage a on one side. A stock conveyor chain 7 extending diagonally backward from the upper part of the raking wheel 5 immediately behind the culm lifting frame 3 and a feed chain 1b extending from above the front end of the stock conveyor chain 7 to the supply port 1a of the threshing device 1. A panicle side conveyor 8 with lugs provided over the side is provided, and
A stock culm feed chain 9a and a panicle side feed chain 9b with lugs are provided in the shell culm feed passage that continues to the shell culm pulling path on the other side, and the other end thereof is connected to the shell culm feed path. It faces in front of the terminal end of the stock transport chain 7 in passage a.

Further, at the terminal end of the stock conveying chain 7, a transfer start end of a handling depth adjusting device 10 consisting of a conveying chain 10a and a clamping rail 10b is provided so as to maintain an inheritance relationship, and this handling depth adjusting device 10 is tilted within the range of two postures shown in FIG. 2 about the fulcrum shaft 11 at the starting end.

The culm tilting guide 12, whose front end is fixed to the back surface of the central culm lifting frame 3', is moved in the transfer direction from the point C where the other culm feeding passage in the - side culm feeding passage a merges. The culm tilting guide 13, which intersects on the upper side and whose front end is fixed to the back side of the culm lifting frame 3'' on the other side, intersects with the culm feeding passage a on one side on the lower side of the confluence C. , the rear end reaches above the rear part of the panicle side conveyor 8.

The front part of the cover 8a of the panicle side conveyor 8 is formed narrow and high, but as it reaches the rear part, the cover 8a gradually becomes wider and lower.

Therefore, the culm pulled up by the culm lifting frame 3 on the negative side is moved by the cutting blade 4.
At the same time, the stem part is guided by the guide rod 17 and raked by the raking wheel 5 on one side, and the stem part is fed by the lug 8b of the ear-side conveyor 8.

At that time, as shown in FIGS. 3 and 4, when the sugar part tries to pass between the culm lifting frame 3 and the guide plate 3a', most of the stem part is moved by the culm tilting guide 12. The culm is leaning on the panicle-side conveyor 8, and even if it is a long culm or a lodging culm that does not want to fall toward the guide plate 3a', the culm is pushed by the culm tilting guide 12. Since it has a dogleg shape, it does not become entangled with the shell culm being transferred through the adjacent shell culm feeding passage.

When the shell culm is further advanced, the shell culm tilting guide rod crosses the shell culm feeding passage a and reaches above the cover 8a.
As shown in FIGS. 2 and 5, before the culm reaches the confluence C, the culm is in a state where the tip of the culm is completely resting on the ear-side conveyor 8 and its cover 8a.

In addition, in the shell culm feeding passage, the stem part of the shell culm at the center of the width of the machine is guided by the guide rod d toward the stock part feeding chain 9a while being scraped by the scraping wheel 5, and the stem part is fed by a feeding chain f with a lug attached to the lower surface of the cover unit e.

At this time, since the part facing the shell culm feeding passage from the middle part of the front surface of the cover integral e is a notch f', reliable raking and feeding can be performed, and this The grain culms are then sent back together with the grain culms that have been scraped in by the ear-side feed chain 9b and the lug, and these husks are pushed down toward the ear-side conveying body 8 side by the culm tilting guide 13 at the confluence section C. The shell culms are conveyed in a leaning posture from the side shell culm feeding passage a, and are laid down between or on top of the shell culms and transported later.

Note that the speed Vl of 9b is faster than the speed V2 of 8b.

Next, the stock base of the grain culm is transported to the handling depth adjustment device 1° and subjected to handling depth adjustment processing, and then transferred to the feed chain 1.
b and the starting end of the pinching rail 1b', and the sugar part does not stand up as shown by the dotted line in Fig. 6, but is inserted into the supply port 1a in a substantially horizontal position as shown by the solid line, so that the threshing process is completed. receive.

Note that the lug 9b' at the rear end of the ear side feed chain 9b partially overlaps the movement locus of the tip of the lug of the ear side conveyor 8, as shown in FIG. The rear end of the rail 9b'', as shown in FIG. 8, is located at a position where the lug 9b' lies down immediately after the above wrapping.

In the drawing, reference numeral 15 indicates an ear side guide rod extending rearward from the lower surface of the cover of the ear side conveyor chain 9a and along the tip of the lug of the ear side conveyor 8, and 16 indicates an ear side guide rod extending from the outside of the other raking ring 5. This is a stem guide rod that extends along the lower surface of the culm feeding chain 9a through the outer periphery of the drum section on the lower surface.

As mentioned above, this invention has a plurality of shell culm feeding passages connected to the rear from a plurality of shell culm pulling paths at the front of the machine, and a panicle-side conveyor and stock head conveyor at the rear of these culm feeding passages. In a combine harvester in which the shell culm feeding passage on the waist side is sequentially merged with the shell culm feeding passage on the other side adjacent to the body, the shell culm feeding passage located at the rear upper part of the shell culm feeding passage A cover that is inclined to guide the grain culm in a leaning posture is provided on the ear side conveyor, and the grain culm is placed on the upper side and the lower side in the husk transfer direction of the merging part of the culm feeding passage with the cover. The culm tilting guide rods for leaning on the culm are extended from the rear surface of the culm lifting body on the side of the feeding direction of each of the culm lifting paths, obliquely intersecting with the culm feeding passages. The sugar side of the grain culm, which has been lifted by the culm lifting body through the culm lifting route and then conveyed into the subsequent culm feeding route, is continuously guided by the culm tilting guide rod immediately after the culm is lifted, and the culm After crossing the culm feeding path, lean on the panicle side conveyor and the cover on it, and place the culm lifting body on the next culm lifting path on the culm being transported in this leaning position. The sugar part side is pushed down by the grain culm tilting guide rod extending from the back side, and the grains merge through the culm feeding route and then stand in a separated state.In the end, the grain culm becomes a long culm. Even if the culm is a lodging culm, the sugar part side of the grain culm raised by each culm lifting route reaches a separate grain culm tilting guide while being conveyed through the culm feeding passage that follows them. Grain can be conveyed in an orderly manner without disturbing the posture until it reaches a leaning position.Moreover, at the merging point, the grain culm can be transported from the culm feeding passage leading to the next culm lifting passage by the pushing down action of the grain culm tilting guide rod. The culm joins the transported culm without any trouble in a stable leaning position, and the culm folds and intertwines in multiple directions, not only at the strong stock base but also at the sugar part, which is easy to bend. It is possible to merge the grains in an orderly manner without any confusion, and it is possible to prevent unhandled ears, broken ears, or being drawn into the husk handling room.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of a combine harvester. Figure 2 is a front view of the preprocessing section, Figure 3 is a side view of the same, and Figure 4 is a front view of the preprocessing section.
Figures 5 and 6 are lines A-A and B-B in Figure 3.
7 is a plan view of the panicle side conveyor and the panicle side feeding chain at the confluence of the culm feeding passages, and Figure 8 is the panicle side conveyance chain and its appendix. FIG. 3 is a plan view of the guide. 3.3', 3”-・・・ Culm lifting frame, 5...
・Pulling wheel, 7...Stock conveyor chain, 8...
... panicle side conveyance chain, 9a... stock feed chain, 9b... panicle side feed chain, 12,1
3...Culm tilting guide.

Claims (1)

[Scope of utility model registration request] A shell culm feeding passage is provided in succession from a plurality of shell culm pulling paths at the front of the machine toward the rear, and a panicle side transport body and a stock base transport body are arranged at the rear of these shell culm feeding passages. , in a combine harvester in which the shell culm feeding passage on the - side is successively merged with the shell culm feeding passage on the other side adjacent to the shell culm feeding passage; , a grain culm is provided with an inclined cover to guide the husk in a leaning posture, and the grain culm is made to lean on the cover on the upper side and the lower side in the culm transfer direction of the confluence part of the culm feeding passage. A culm conveyance in a combine harvester, characterized in that a tilting guide rod is extended from the rear surface of the culm lifting body located near the feeding direction of each of the culm lifting paths to obliquely intersect with the culm feeding passage. Device.