JPH05123036A - Grain straw-carrying device of combine - Google Patents

Abstract

PURPOSE:To reduce the disturbance of carried grain straws at a carrying junction by arranging the carrying junction of a main carrier with a sub-carrier at a position behind the back surfaces of raising cases whose non-acting sides are faced to each other. CONSTITUTION:A carrying junction J of a main carrier 15 with a sub-carrier 16 is placed in a triangle shape at a position behind the back surface sides of raising cases 4a, 4b whose non-acting sides are faced to each other. Carried grain straws can be joined in the stable space not subjected to the action of the raising device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a grain culm conveying device in a multi-row cutting combine having 5 or more lines.

[0002]

2. Description of the Related Art A combine harvester for multi-row cutting, in which a harvested culm is raised and is moved from the left and right sides of the cutting width in the opposite direction behind the device so as to be joined, and then taken up by a lifting and conveying device For example, Japanese Utility Model Laid-Open No. 62-30522 (a), Japanese Utility Model Laid-Open No. 2-34125 (b), and Japanese Unexamined Patent Publication (Kokai) No. 3
It is already known from the publication No. 58710 (c).

[0003]

However, in the above-mentioned conventional example, the conveying grain culms are merged by advancing from the left and right sides of the cutting width in the approaching directions opposed to each other (in particular, the above a). Or b)), and the conveying forces in different directions in the confluence part affect each other and disturb the conveying posture of the grain culm, so that the transfer to the lifting conveying device side is not performed well. There are drawbacks. Also, in order to reduce the adverse effects of the left and right conveying forces, the left and right conveying bodies are arranged in an inverted C-shape in plan view toward the middle part of the cutting width (b), and the conveying length in the front-rear direction is long. Not only that, but in order to secure a good forward field of view, there is a disadvantage that the space for disposing the driver's seat, which is desired to be provided as close as possible to the raising device, becomes cramped by the inverted C-shaped carrier. Furthermore, the one in which the left and right conveyed grain culms are joined in an orthogonal state (the one in c) has substantially the same drawbacks as the one in the above-mentioned a, and the adverse effect of the device for raising the grain culm at the conveying merging portion (caused by the raising claw) Or grain culms may interfere with each other).

[0004]

The combine grain culm conveying device according to the present invention is made based on the above-mentioned actual condition, and the cutting grain culm is raised and the left and right sides of the cutting width are provided behind the device. In a multiple-row cutting combine harvester that is made to pass from both sides in opposite directions and merged, and then inherited by a lifting and conveying device, a majority of the total number of harvested rows of cut grain culms are cut from the already-cut area to the uncut area. A main carrier that feeds sideways toward each other and a sub-carrier that is located on the side of the main carrier and that feeds the remaining number of cut culms to the direction of the already-cut land are respectively raised behind the device. However, it is a gist that the transport merging portions of the main transport body and the sub transport body are provided in a delta shape by being located rearward of the rear side of the raising case where the non-acting side of the raising device faces.

[0005]

According to the present invention, since the transport merging portion of the main transport body and the sub-transport body is located rearward of the rear side of the raising case where the non-acting side of the raising device is opposed, the conveyance is performed. The grain culms can be merged in a stable space that is not affected by the device, and as a result, transport disturbance at the transport merging section is reduced as much as possible and the horizontal feed transport posture is moved backward to the vertical feed transport posture. The posture can be changed easily and surely. Also, since the front-rear length of the main carrier can be set short, the driver's seat placement space can be sufficiently secured without being obstructed by the main carrier, and the driver's seat can be located close to the rear of the raising device with a good front view. Can be provided in position.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a pre-processing section of a multiple-row cutting combine, which is mounted in front of a traveling machine body (main machine) 2 through a hydraulic cylinder (not shown) so as to be vertically movable around a fulcrum shaft 3. At the front lower part of the raising device 4, dividers D _{1 to} D ₇ for weeding the raised grain culm are arranged laterally 7 in correspondence with the spaces.
Individually arranged, a pretreatment unit 1 for 6-row cutting is configured. Reference numeral 5 denotes a crawler traveling device including a pair of left and right rubber crawlers 5a and 5b mounted on the traveling machine body 2, and a cabin 6 is provided on an upper side of one side of the traveling machine body 2 on the front side (right side in the machine body traveling direction).
A driver's seat 6 surrounded by a is disposed, and a lifting conveyance device 7 having a handling depth adjusting mechanism forming a part of the pretreatment unit 1 is provided on the left side of the driver's seat 6. ing. The lifting conveyer 7 is composed of a handling depth stock carrier 7a and a handling depth tip carrier 7b, and can tilt about a fulcrum 7c. It is the same as in the prior art that the sensor (not shown) detects the culm length of the grain culm and automatically adjusts the handling depth. 8 is a feed chain of the threshing part A, 8a is a pinch rail of the feed chain 8, and 9 is a handling cylinder.

By the way, the divider D ₇ on the right end side in the traveling direction of the machine body is provided in front of the driver's seat 6 and in the vicinity of the outer end of the right crawler 5b of the crawler traveling device 5 on the virtual extension line L ₁ . Further, the divider D ₁ on the left end side is provided so as to be spaced apart from the outer end of the left crawler 5a outwardly by at least one interval w.

Reference numeral 10 denotes a reciprocating type cutting blade, which is located above the cutting blade 10 and has six star wheels 11 for cutting the harvested culm and a conveyor belt 12 with lugs 12a arranged vertically in the cutting width direction. The four star wheels on the left side in the traveling direction of the machine body are adjacent to each other, and the two star wheels on the right side are in mesh with each other in the scraping direction. Thirteen
Is an upper star wheel disposed above the conveyor belt 12, and 14 is a star wheel 11 on the right end side and the conveyor belt 1.
It is a stock company chain established between two.

The main carrier 1 is located behind the raising device 4.
5 and a sub-transport body 16 is provided on the right side thereof. The main transporter 15 cuts a majority of the harvested crops (4 rows on the right side in the embodiment) from the abandoned a side (the outer right side of the machine in FIG. 2) to the uncut b side (the same). Lateral transport unit 15a and lateral transport unit 15a that laterally feed toward the left side of the figure)
And a vertical transport unit 15b that transports the transport end portion from the transport end portion toward the lifting transport device 7 side, and the transport working side has a substantially L shape in a plan view. The main carrier 15 has a three-stage divided structure of a stock feed 17, a middle feed 18 with a tine 18a, and an upper feed 19 with a tine 19a by changing the height in the culm direction. Further, the sub-transporter 16 is for feeding the cut culms of the remaining number of strips (two strips on the left side in the embodiment) in the direction of the already-cut land a, and also the stock-source feed corresponding to the stock-source chain 14 on the right end side. 20, a middle feed 21 with a tine 21a and an upper feed 22 with a tine 22a are configured in three stages, and the transport merging portion J of the main transport body 15 and the sub transport body 16 is raised as shown in FIGS. The non-operating side of the sushi device 4 is located rearward of the rear sides of the raising cases 4a and 4b facing each other, and is provided in a delta shape in a plan view. Then, the sub carrier 16
The tine 21a, 22a on the side is arranged so as to wrap in the transport merging portion J on the main carrier 15 side in plan view as shown in FIG. 2, and when the left and right transport grain stems enter the merging portion J, The transported grain culm is designed to be transported backward in a stable state in which it is held from the front, rear, left and right in combination with the attachment holding function of these tines 21a, 22a.

Reference numeral 23 denotes a triangular guide cover which is provided on the front side of the merging portion J in the delta shape and is provided on the front side thereof. The guide cover 23 is inclined and guided along the guide passages of the main carrier 15 and the sub carrier 16. It has the surfaces 23a and 23b, and the mounting tool 2 such as mounting bolts is provided on the back side of the raising cases 4a and 4b.
It is detachably fixed via 3c. The transport culm on the side of the sub-transporter 16 is configured to join the transport culm on the side of the main transporter 15 at an acute angle at the midway point of the transport of the vertical transport unit 15b. 24 is an input pulley of the pretreatment unit 1,
25 is a transmission shaft to the pretreatment unit 1, 26 is a gear case, 27
Is a preprocessing frame.

In the above-mentioned embodiment, the combine of 6 cuttings has been described, but the present invention is not limited to the cutting of 6 cuttings, and a combine of 5 cuttings or a large combine having more than 6 cuttings is also possible. Can be adopted.

In the above-mentioned construction, during the cutting operation, the standing culms of the field caused by the raising device 4 are cut by the cutting blade 10, and two pairs of the star wheels 11 and the conveyor belts 12 are used together. After being scraped backwards and conveyed, the right four rows are stock feed 17 and middle feed 18
And the main transfer body 15 consisting of the upper feed 19
From the side, it is laterally conveyed in the direction of the uncut land b, and the direction of the main conveyance body 15 is changed from the end of the lateral conveyance section 15a to the vertical conveyance section 15b. On the other hand, the left two rows are conveyed obliquely rearward from the uncut land b side toward the vertical conveyance section 15b of the main conveyance body 15 by the sub-conveyance body 16 including the stock feed 20, the middle feed 21, and the upper feed 22. After that, at the midway of the conveyance of the vertical conveyance unit 15b, the main conveyance body 1
It is merged with the transport culm on the 5th side. By the way, the main carrier 15
Since the transfer merging portion J of the sub-transporter 16 is raised and the non-acting sides are provided behind the raising cases 4a and 4b opposite to each other, the raising device 4 does not affect the feeding culm stable. The merging can be performed in the space described above, and thereby, the disturbance of the conveyance at the conveyance merging portion J can be minimized, and the posture can be easily and surely changed from the lateral feeding posture to the backward vertical feeding posture. After the confluence, the transported grain culm is fed through the lifting transport device 7 to the feed chain 8 of the threshing section A.
Since it is lifted and conveyed in a substantially straight line to the side, the grain culms can be supplied to the threshing section A side extremely smoothly and reliably without causing conveyance clogging.

Further, a guide cover 23 having inclined guide surfaces 23a and 23b along the transfer passages of the main carrier 15 and the sub carrier 16 is provided on the front side of the merging part J formed in the delta shape. The respective transport grain culms are reliably guided and guided by the guide cover 23 without falling forward, and are transported to the merging portion J while maintaining an orderly transport posture. For this reason, the action of joining the transported grain stems by the main carrier 15 and the sub carrier 16 is performed more smoothly.

By the way, the lateral feed portion 15a of the main carrier 15
Is for cutting a majority of the cut culms, and
Since it acts to laterally feed from the side toward the uncut land b, the front-back width of the lateral feeding portion 15a can be made as narrow as possible,
Therefore, the driver's seat 6 and the cabin 6a behind it can be sufficiently secured in the space c, and there is no need to worry about the space for the driver's seat 6.

[0015]

Since the present invention is constructed as described above,
Since the transport merging part of the main transporter and the sub-transporter is provided behind the rear side of the raising case where the non-acting sides face each other, they are joined in a stable space that is not affected by the raising device to the transport grain stems. As a result, it is possible to easily and surely perform posture conversion from the lateral feeding conveyance posture to the backward vertical feeding conveyance posture by minimizing the disturbance of the conveyance at the conveyance merging portion.

[Brief description of drawings]

FIG. 1 is a developed plan view of a pretreatment unit of a combine equipped with the present invention.

FIG. 2 is a side view of a pretreatment unit.

FIG. 3 is a plan view showing a relationship between a raising device, a main carrier, and a sub carrier.

[Explanation of symbols]

 4 Raising device 4a Raising case 4b Raising case 7 Lifting carrier 8 Feed chain 15 Main carrier 16 Sub carrier A Threshing part J Confluence part of carrier culms a Existing land b Uncut land

Claims (1)

[Claims] 1. A multi-row cutting combine in which the harvested culms are brought up in the opposite direction from the left and right sides of the cutting width at the rear of the raising device and then merged, and then taken over by the lifting and conveying device,
Of the total number of cuts, the majority of the cut culms are fed laterally from the already-cut area toward the uncut area, and the cut corn for the remaining number of rows is located on the side of the main carrier. The sub-carriers for sending the culms in the direction of the cut land are respectively raised and arranged behind the device, and the transport merging portions of the main carrier and the sub-carriers are raised so that the non-acting side of the device faces each other. A combine grain culm transporting device, which is located rearward on the back side and is provided in a delta shape.