JP2003259716A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester functioning to integrally turn ear side rake-in conveyors with a threshing depth conveyor and avoiding the misregistration of the ear side rake-in conveyors with respect to a raiser and/or plant foot side rake-in conveyor through restraining the lateral shake of the ear side rake-in conveyors. <P>SOLUTION: The combine harvester equipped with the pair of left and right stem culm ear side rake-in conveyors 8L and 8R and the threshing depth conveyor 11 on a pretreatment section 2 for reaping stem culms, wherein the threshing depth conveyor 11 functions to convey stem culms raked in by the conveyors 8L and 8R to a threshing section 3, and functioning to vertically turn the threshing depth conveyor 11 about the conveyance terminal end side as a support, has the following scheme. The conveyors 8L and 8R are turned integrally with the threshing depth conveyor 11, wherein there is provided a guide 24 for restraining the lateral positions of the conveyors 8L and 8R. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to a technical field of a combine for rotating an ear side pick-up carrier body integrally with a handling depth carrier body.

[0002]

2. Description of the Related Art Generally, in a combine, a pair of left and right ear side scraping carriers for scraping the ear side of the stems and a pair of the ear side scraping conveyors scrape into the pretreatment section for cutting the stems. And a handling depth carrier for carrying the stems and shoots to the threshing section. The handling depth transporter is configured to be rotatable around the transport start end side or the transport end side as a fulcrum, and the handling depth of the stalks at the threshing portion is adjusted according to the rotation.

[0003]

However, in the case of rotating the handling depth transporter with its transport end side as a fulcrum, the rotation causes the handling depth transporter and the spike-side scraping transporter to move. There is a possibility that the position will be misaligned, and the conveyance will be disturbed or leakage will occur. Therefore, it is proposed to integrally rotate the ear side scraping carrier and the handling depth carrier. In this case, the ear side scraping carrier and the handling depth carrier are rotated as described above. Since it is supported in a cantilever manner by the fulcrum, there is a possibility that the ear-side scraping conveyance body far from the rotation fulcrum will largely roll.
As a result, there is a possibility that the ear-side scraping carrier is misaligned to the left or right with respect to the raising device or the stock-side scraping carrier, and transport disorder or leakage may occur.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances in order to solve these problems. The pretreatment unit for cutting stalks is provided with a stem culm. A pair of left and right ear side scraping carriers for scraping the ear side and a handling depth carrier for transporting the stalks scraped by the ear side scraping carrier to the threshing section are provided, and the handling depth carrier is provided. In a combine in which the body is rotated in the up-down direction with the conveyance end side as a fulcrum, when rotating the ear side scraping carrier integrally with the handling depth carrier, the left and right sides of the ear side scraping carrier are It is characterized in that a left and right position regulation guide for regulating the position is provided. In other words, the ear-side scraping carrier can be rotated integrally with the handling depth carrier, but the rolling of the ear-side scraping carrier can be regulated, and as a result, the raising device and the stock side It is possible to avoid the positional deviation of the ear side scraping carrier with respect to the scraping carrier, and to prevent the transport disorder and the leakage. Also,
The left-right position regulation guide is configured to include a guide bracket provided on the bristle-side scraping conveyance body and a guide rod that vertically penetrates the guide bracket. In this case, the left and right position regulation guides can be simply configured to avoid the structure from becoming complicated. Also,
The left and right position regulation guides are provided on the non-conveying working side of the spike-side scraping conveying body arranged on the opposite side of the handling depth conveying body with the stem-culm conveying path interposed therebetween. In this case, it is possible to effectively prevent the rolling on the side of the left and right ear side scraping conveyors where it is difficult to firmly support the conveying depth conveyors.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, one of the embodiments of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a combine traveling machine body, and a pre-processing section 2 for cutting stalks is movably connected to a front portion of the traveling machine body 1. The stem culms cut by the pretreatment unit 2 are conveyed to the threshing unit 3 mounted on the traveling machine body 1 and taken over by the threshing feed chain 4. The threshing feed chain 4 conveys the stem culm received from the pretreatment unit 2 along the threshing unit 3, and the threshing process by the threshing unit 3 is performed in the conveying process.

The pretreatment unit 2 divides an uncut stem culm by a divider 5, a raising device 6 for causing stem culm, a cutting blade device 7 for cutting the root portion of the stem, and a stem for cutting stems. Ear-side scraping carrier 8 for scraping the ear side, stock-side scraping carrier 9 for scraping the stem-plant side of the stem culm, and stock-source carrier for sandwiching and carrying the scrap-plant side of the stem culm A chain 10 and a handling depth carrier 11 that receives the stem culm at the terminal end of the ear side scraping carrier 8 (stock yuan carrier chain 10) and conveys it to the starting end of the threshing feed chain 4 are provided. Composed.

The handling depth carrier 11 is a brush-side pick-up carrier 8.
From the end part of the stem, the ear side of the stem culm 12 which receives the ear side of the stem and transports it toward the threshing unit 3, and the end of the stock source transport chain 10 transfers the stem side of the stem to the stem side. The stocker side transfer part (feed chain) 13 which receives and transfers this to the threshing part 3 is provided in a vertically parallel manner. The handling depth transport frame 14 that supports the bristle-side transport unit 12 and the stocker-side transport unit 13 is supported rotatably up and down with its transport end side as a fulcrum, and its rotational position is a handling depth adjustment actuator ( It is adjusted based on the driving of (not shown). Thereby, the stocker side conveyance part 13 pinches the appropriate position of a stalk, and the handling depth of the stalk in the threshing part 3 is optimized.

The combine of the present embodiment has a four-row cutting specification, and as shown in FIG.
Two stem culm introduction routes are formed. The stocker side scraping conveyance bodies 9 provided on the back side of the stem culm introduction route are arranged in a C shape in a plan view with two pairs as one set. The stem culms of the stems introduced from are merged into two rows. The pair of left and right stock-source transport chains 10 that take over the stems that have been joined in two rows are also arranged in a C shape in plan view, and at the end of the transport, the stock-source sides of the stems are joined in one row and handled. It is taken over by the stocker side transfer unit 13 of the depth transfer body 11. On the other hand, the ear side of the stems is scraped and conveyed by a pair of left and right side scoop conveying bodies 8. The pair of left and right ear side scraping conveyors 8 are arranged in a C shape in plan view, and on the conveying end side thereof, the ear sides of the stems are joined in one row, and the ear side of the handling depth carrier 11 is formed. It is taken over by the transport unit 12.

The left and right ear side scraping conveyors 8 each have a chain 8a with a claw, and by driving the chain 8a with a claw, the stem and shoots are scraped and carried. Right ear side pick-up carrier 8
The rear end of R is integrally connected to the handling depth carrier 11 and is driven by the power directly transmitted from the handling depth carrier 11. On the other hand, since the left ear side scraping carrier 8L is arranged on the opposite side of the handling depth carrier 11 with the stem-culm conveying path sandwiched therebetween, the inverted U-shaped ear side scraping straddles the stem-culm conveying path. It is integrally connected to the base end portion of the handling depth carrier 11 via the insertion transmission cylinder 15, and is driven by the power transmitted from the spike-side incorporation transmission cylinder 15. That is, the left and right ear side scraping transfer bodies 8L and 8R are integrally connected to the handling depth transfer body 11 and configured to rotate up and down together with the handling depth transfer body 11. As a result, the handling depth carrier 1 accompanying the handling depth adjustment
The positional deviation between 1 and the ear side scraping conveyance body 8L, 8R is avoided.

A scraping guide 17 for sandwiching the stem culm between the spike side scraping carriers 8L and 8R is arranged at a position opposite to the transporting parts of the spike side scraping carriers 8L and 8R. The scraping guide 17 is formed by a wire rod that bends in a letter shape in a plan view so as to follow the left and right ear-side scraping carriers 8L and 8R, and also the handling depth carrier 11 via the guide support member 18.
It is supported integrally on the side. As a result, the scraping guide 1
7 and the bristle-side scraping conveyors 8L and 8R rotate integrally with the handling depth conveyor 11, so that the misalignment between the scraping guide 17 and the spike-side scraping conveyors 8L and 8R. Avoided.

The upper end portion of the guide support member 18 is an intermediate portion of the spike-side scraping transmission cylinder 15 (spike-side scraping conveying bodies 8L, 8).
It is integrally supported at a position above the merging portion of R), and the scraping guide 17 is integrally supported at the lower end thereof. The guide support member 18 of the present embodiment extends to one side from the middle portion of the spike-side scraping transmission cylinder 15 and reaches the position of the scraping guide 17 while bending in a side view from here. It is formed. As a result, it is not permissible to secure the stem-culm conveying path (spike side scraping path) on both left and right sides of the guide support member 18,
A sufficient space is secured above the stem and culm transport path, and the tip end portion is prevented from being caught by the guide support member 18.

The scraping guide 17 is provided with a first auxiliary guide member 19 for restricting the fall of the stems. The first auxiliary guide member 19 is a plate-like member along the scraping guide 17, and is provided so as to hang from the scraping guide 17. As a result, the raking guide 1 formed of the wire rod
While squeezing the ear side of the stalk by 7 and preventing the fall of the stalk by the first auxiliary guide member 19, avoiding the inconvenience that short stalks such as delayed ears fall and transport disturbance and spillage occur. To be done.

Further, a second auxiliary guide member 20 is provided at the end of the first auxiliary guide member 19. The second auxiliary guide member 20 is a flexible rod-shaped member, and extends from the terminal end portion of the first auxiliary guide member 19 toward the front position of the start end portion of the ear side transport unit 12. That is, at the starting end portion (claw turning region) of the bristle side transport unit 12, the feed claw 12a may sweep the stem culm forward, but this sweeping is restricted by the second auxiliary guide member 20. The tip side of the second auxiliary guide member 20 is
While overlapping below the claw locus of the ear side conveyance unit 12, the middle portion of the scraping guide 17 overlaps above the claw locus of the ear side conveyance unit 12. As a result, the ear side of the culm, which has been scraped and conveyed to the start end of the ear side conveying section 12, is subjected to the sweep-out restricting action of the scraping guide 17 and the second auxiliary guide member 20, and the feeding claw 12a is fed between them. Will be affected. As a result, the inconvenience that the stem culm is swept out at the starting end of the ear-side transport unit 12 cannot be reliably avoided, and the fall of short culm can be prevented.

The pre-processing section 2 includes a plurality of raising transmission cylinders 21.
Are erected at predetermined intervals in the left-right direction. The raising transmission cylinder 21 is tilted forward so as to raise the power supplied from the traveling machine body 1 side via the pretreatment transmission cylinder 22 and transmit it to the upper portion of the device 6. In addition, in the middle part of the raising transmission cylinder 21,
A stock side scraping transmission cylinder 23 protruding forward is integrally provided, and power is transmitted to the stock stock side scraping conveying body 9 via the stock stock side scraping transmission cylinder 23.

On the non-conveying side of the ear side scraping carrier 8L which is arranged on the opposite side of the handling depth carrier 11 with the stem-culm carrying path interposed therebetween, the left and right positions of the ear side scraping carriers 8L and 8R are provided. A left and right position regulation guide 24 for regulating the position is provided. The left-right position control guide 24 includes a plate-shaped guide bracket 25 projectingly provided on the non-conveying working side of the bristle-side scraping conveying body 8L, and a guide rod 26 penetrating vertically through a guide hole 25a of the guide bracket 25. It is configured with. The guide rod 26 is curved and formed in an arc shape around the rotation fulcrum S of the handling depth carrier 11, and its upper end is raised and fixed integrally to the upper end of the transmission cylinder 21, The lower end thereof is integrally fixed to the stock-side scraping power transmission cylinder 23. That is, the left-right position regulation guide 24 moves the guide bracket 25 along the arc-shaped guide rod 26, whereby the handling depth carrier 1
The left and right positions of the ear side scraping conveyance bodies 8L and 8R are regulated while permitting the rotation of 1 and the ear side scraping conveyance bodies 8L and 8R. As a result, the ear-side scraping conveyors 8L and 8R can be rotated integrally with the handling depth conveyor 11, but the roll-side scraping conveyors 8L and 8R can be restricted from rolling.
As a result, it is possible to avoid the positional deviation of the ear side scraping conveyers 8L and 8R with respect to the raising device 6 and the stock side scraping conveyer 9. Moreover, the left and right position regulation guide 24 is
Since the ears are provided on the non-conveying working side of the ear side scraping conveyer 8L arranged on the opposite side of the handling depth conveying body 11 with the culm conveying path interposed therebetween, it is difficult to firmly support the treating depth conveying body 11. It becomes possible to effectively prevent the side scraping conveyance body 8L from rolling laterally.

Further, in the present embodiment, when the guide bracket 25 is provided on the ear side scraping carrier 8L, the position is set to the lower side of the ear side scraping carrier 8L, and
The feed claw 8b is set so as to overlap the standing rotation trajectory (near the lower side). As a result, even if dust is accumulated on the guide bracket 25, the spike-side pick-up carrier 8
Since it is possible to remove dust by utilizing the L feed claw 8b, and the upper limit position of the guide bracket 25 is lowered,
It is possible to make the upper end position of the guide rod 26 as low as possible.

In the construction as described above, a pair of left and right ear side scraping carriers 8L and 8R for scraping the ears of the stalks into the pretreatment section 2 for cutting the stalks, and the ears side scraping. A handling depth carrier 11 for transporting the stem culm scraped by the carriers 8L and 8R to the threshing unit 3, and the handling depth carrier 11 is provided.
In a vertical direction with the conveyance end side thereof as a fulcrum in a vertical direction.
When integrally rotating the handling depth conveyance body 11,
Since the left and right position regulating guides 24 that regulate the left and right positions of the ear side scraping conveyors 8L and 8R are provided, the ear side scraping conveyor 8 is provided.
L and 8R can be rotated integrally with the handling depth carrier 11, but the rolling motion of the spike-side scraping carrier 8L, 8R can be restricted, and as a result, the raising device 6 and the stocker side It is possible to avoid misalignment of the bristle-side scraping carriers 8L and 8R with respect to the scraping carrier 9 and prevent transport disturbance and culm leakage.

The left and right position regulating guides 24 are guide brackets 25 provided on the bristle side pick-up carrier 8L.
And a guide rod 26 penetrating the guide bracket 25 in the vertical direction, the left and right position regulating guide 2
4 can be simply configured, and the complexity of the structure can be avoided.

Further, since the right and left position regulating guide 24 is provided on the non-conveying working side of the spike-side scraping conveying body 8L arranged on the opposite side of the handling depth conveying body 11 with the stem-culm conveying path interposed therebetween. Of the left and right ear side pick-up carriers 8L and 8R, it is possible to effectively prevent the rolling on the side where it is difficult to firmly support the handling depth carrier 11.

[Brief description of drawings]

FIG. 1 is a side view of a pretreatment unit.

FIG. 2 is a plan view of a main part of a pretreatment unit.

[Explanation of symbols]

1 traveling aircraft 2 Pretreatment section 3 Threshing Department 6 Raising device 8 Ear side scraping carrier 9 Stock side scraping carrier 11 Handling depth carrier 24 Left and right position regulation guide 25 guide bracket 26 Guide rod

Continued front page    (72) Inventor Kaoru Hirose             Shimane Prefecture Yatsuka-gun Higashi Izumo-cho Ojiyacho 667             1 Within Mitsubishi Agricultural Machinery Co., Ltd. F-term (reference) 2B076 AA03 CA17                 2B084 AA01 BD21 BD30 CC05

Claims (3)

[Claims] 1. A pair of left and right ears-side scraping carriers for scraping the ears of the stalks, and a stem culm scraped by the ears-side scraping carrier for the pretreatment section for cutting the stalks. In the combine, which has a handling depth transporter for transporting up to the handling depth, the handling depth transporter is rotated vertically in a vertical direction with the transport end side as a fulcrum. The combine combine is provided with a left-right position control guide that restricts the left-right position of the spike-side scraping conveyance body when the body is integrally rotated. 2. The left and right position regulation guide according to claim 1, wherein the left and right position regulation guide includes a guide bracket provided on the spike-side scraping conveyance body, and a guide rod vertically penetrating the guide bracket. Characteristic combine. 3. The left and right position regulating guides according to claim 1, wherein the left and right position regulating guides are provided on the non-conveying action side of the spike-side scraping conveyer arranged on the opposite side of the handling depth conveyer with the stem-culm conveying path interposed therebetween. A combine characterized by being provided.