JPH0718260Y2 - Stem stalk scraping and conveying device at the combine harvesting section - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a stem-and-cule scraping and conveying device in a harvesting section of a combine.

(B) Conventional technology A stem-and-cullet scraping and conveying device, which is constructed by disposing a pair of scraping star wheels and a scraping belt above a cutting blade, has already been developed.
Although it is widely known in the 60-57934 publication, etc.,
A conventional one of this type, as seen in the above publication, is configured so that a drive scraping star wheel is hung by a stay extending from a wrapping area of a lower transport chain and is commonly driven by the lower transport chain, The driven scraping star wheel that is rotated by meshing with the driving scraping star wheel is structured to be supported by a shaft support that stands upright from the mowing frame.
Further, in Japanese Utility Model Laid-Open No. 58-73429, a stay is extended from the rear to the front in parallel with the stalk-and-crown feeding path, and the upper end of the rotary shaft of the driven foil star wheel is suspended at its tip. It is shown.

(C) Problems to be Solved by the Invention In the conventional stalk-and-scraper conveying device, the lower conveying chain, which is the drive mechanism of the driving-scraping star wheel, cannot be omitted. Even if it is supported in a suspended state, there is a lower transport chain below it, and the entire scraping and transporting device is not simplified.In addition, the driven scraping star wheel where stalks are likely to be wound is removed from the mowing frame. Since it is supported by the shaft support which is erected upright, in order to surely prevent the winding of the stem culms around the shaft support, etc., the stem culm guide must be attached in double and triple, and the whole device becomes more complicated. In addition, even if the stay is extended from the rear to the front parallel to the stalk-and-stalk-conveying path, and the upper end of the rotary shaft of the driven-scraping star wheel is suspended at its tip, the position of the stay is Conveyance of culm Since the position is laterally separated from the path, the conveying stem culm can be finally disengaged from the star wheel tooth portion by the rotation of the star wheel and the cooperation of the stay, but the disengaged position is the stem-cone conveying path. There is a problem in that the stems are lopsided from the side, and the stems are apt to be broken, the bundles are not aligned, and variations due to the left-right behavior.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to simplify the stalk guide guide on the driven scraping star wheel side and to drive the driving scraping star wheel side. Another object of the present invention is to provide a stalk-and-roe-conveying device for a combine harvester, which has a structure that does not require a lower conveying chain and is simplified in its entirety.

(D) Means for Solving the Problems In order to achieve the above object, the stalk-and-scraper conveying device according to the present invention has a cutting blade horizontally mounted on a cutting frame connected to a transmission pipe extending forward from the vehicle body. Installed on the left and right sides of the drive blade and driven star wheel, which are engaged with each other above the cutting blade and on a substantially extended line of the transmission pipe in plan view. In the stalk-and-scraper conveying device, in which a stalk-and-scraping conveying path is formed, and the stalk-and-scraping conveying paths are respectively stretched from the rotation axes of the both-scraping star wheels toward the front, the support of the driven-scraping star wheel is supported. In a plan view, the body is made to extend from the transmission pipe along one side of the stalk-and-scraper feeding path toward the root tangent direction of the star wheel in front, and the shaft core is provided from a substantially lateral portion of the rotating shaft. Bend in the direction of the star wheel The upper end of the rotating shaft is suspended, and the supporting body also serves as a stalk guide guide on the upper surface side of the driven scraping star wheel.

(E) Action When the stem / cule scraping / conveying device configured as described above operates, the root portion of the planted stem / culm is cut by the cutting blade while being scraped by both the scraping belts, and the stems cut from the stem are cut. The culm is scraped by the both scraping star wheels and is transferred from between the both scraping star wheels along the stem-stalk scraping conveyance path formed at the rear. As described above, the stem culm that is scraped and conveyed is a support that extends from the transmission pipe along one side of the stalk-scraped conveying path toward the root tangential direction of the star wheel in front. Depending on the body, there is no left-right movement from the stalk-scraping conveyance path between the left and right star wheels toward the rear stalk-scraping conveyance path, which can cause stem stalk breakage, uneven bundles, and variations. In this case, the transfer is made smoothly without any trouble, and it is carried without causing winding around the driven scraping star wheel.

(F) Examples Examples will be described with reference to the drawings.

In FIG. 3, the combine is a crawler traveling unit (1).
Threshing part (3) on the vehicle body (2) supported by (1)
And a mowing part (4) is mounted on the front part of the vehicle body (2) so as to be adjustable up and down, and these crawler running parts (1) are mounted.
The (1), the threshing section (3), and the mowing section (4) can be driven by an engine (5) arranged on the vehicle body, and their driving operations can be performed by the control section (6) on the vehicle body. Is configured.

In FIGS. 1 and 2, the mowing part (4) is the vehicle body (2).
The cutting frame (8) is connected to the front end of the transmission pipe (7) extending from the front to the front, and the grass bodies (9) (10) (11) are attached to the respective tips of the grass pipe extending forward. The stem culm erecting device (12) is installed from the rear part of the left and right grass bodies (9) (11).
(12) is slanted obliquely rearward and upward, and a cutting blade (13) straddling a weeding pipe is provided laterally below the rear part of the stem-culm raising device.

Further, above the cutting blade (13) and on a substantially extended line of the transmission pipe in a plan view, there are a drive scraping star wheel (14) and a driven scraping star wheel (15) rotated by meshing with it. Placed on the left and right, both scraped star wheels (14)
A culm-sucking conveyance path (16) is formed in the rear from between (15),
The stem culm lifting and conveying device (17) is provided in the stalk and stalk scraping conveying path (16).
The leading end of the sheet is exposed.

In addition, the rotating shaft (1
Pulleys (22) and (22) are fitted on the upper portions of 8) and (19), and small-diameter pulleys (23) and (23) are provided at positions diagonally forward and outward of each of the pulleys (22) and (22). Between the belt (2
4) and (24) are each hung.

Then, the upper end of the rotation shaft of the driven scraping star wheel (15) is seen from a plan view from the transmission pipe (7) to the stalk and scraping conveying path (1).
6) Extends along the one side part toward the root tangent direction of the star wheel (15) in front, and bends from the substantially lateral part of the rotary shaft (19) in the axial direction of the shaft (19). The driven scraping star wheel (15) is suspended by the supporting body (25), and the supporting body (25) also serves as a stalk guide guide on the upper surface side of the driven scraping star wheel (15). There is something.

The mowing frame (8) is configured to include a transmission case (26) accommodating a transmission device that interlocks with a transmission mechanism inside the transmission pipe (7), and is driven and swept by the transmission device inside the transmission case (26). It is configured so as to be able to drive the rotating shaft (18) and the cutting blade (13) of the star wheel (14). In addition, reference numerals (27) and (28) in the drawing denote a stalk guide guide installed on the side of the driving scraping star wheel, and (29) a stalk guide guide installed on the lower surface side of the driven scraping star wheel, ( Reference numeral 30) is a belt cover arranged above each scraping belt, and reference numeral (31) is a stand for facilitating attachment and detachment work of the mowing part with respect to the vehicle body.

(G) Effect of the invention Since the invention is configured as described above,
The following effects are achieved.

By driving the driving scraping star wheel (14) by the transmission mechanism of the transmission pipe (7), it is possible to make a stalk-and-scraping conveying device without a lower conveying chain. The device can be a simple structure with a clean lower part. A support body (25) for suspending and supporting the upper end of the rotation shaft of the driven scraping star wheel (15) extends from the transmission pipe (7) along one side of the stalk and scraping conveying path (16) in plan view. Since the star wheel (15) is extended toward the root bottom tangential direction of the star wheel (15) in the front direction and also functions as a stalk guide guide on the upper surface side of the driven scraped star wheel (15), a star wheel support device is provided. In addition to being able to double as a stem culm guide and reducing the number of parts by eliminating the need for a special stalk culm guide, the support and the star wheel tooth portion retracting from the stem culm feeding path Due to the cooperative action of the stalks, even when the stalks are transferred from the star wheel transfer route to the backward stalk transfer route, the left and right movements of the stalks do not occur and the stem stalks are broken and the bundles are not aligned. , It was possible to eliminate the variation, and it was possible to make a smooth transition. Is.

[Brief description of drawings]

FIG. 1 is a plan view of a stalk-and-cusp conveying device, FIG. 2 is a partially cutaway side view of the stalk-and-causing conveying device shown in FIG. 1, and FIG. 3 is an overall perspective view of a combine. Is. (2) …… Car body, (18) (19) …… Rotating shaft (7) …… Transmission pipe, (25) …… Supporting body (8) …… Mowing frame (13) …… Mowing blade (14)… … Drive scraping star wheel (15) …… Driven scraping star wheel (16)… Stem-scraping conveying path

Claims (1)

[Scope of utility model registration request] 1. A cutting blade (1) is attached to a mowing frame (8) connected to a transmission pipe (7) extending forward from a vehicle body (2).
3) is installed horizontally, and the drive scraping star wheel (14) and the driven scraping star wheel (15) that are engaged with each other above the cutting blade (13) and on the substantially extended line of the transmission pipe in plan view It is installed to form a stalk-scraping conveying path (16) rearward between the two sweeping star wheels (14) (15), and the rotary shafts (18) of the both sweeping star wheels (14) (15). In a stalk-and-scraper-carrying device in which the scraping belts (24) and (24) are respectively stretched from the (19) toward the front, the supporting body (25) of the driven scraping star wheel (15) is seen in a plan view. From the transmission pipe (7), along the one side of the stalk-and-scraper conveying path (16), the star wheel (15) is extended toward the root tangential direction of the star wheel (15), and the rotary shaft (1
Bend from the substantially lateral part of 9) toward the axis of the shaft (19),
The rotating shaft (19) of the driven foil star wheel (15) at its tip
And a support device (25) for suspending the upper end of the support device (25) so that the support member (25) also serves as a guide for guiding the stem shoots on the upper surface of the driven scraping star wheel (15).