JPH0671376B2 - Input-type combine harvester pretreatment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides a first mowing device for cutting the root side of a planted culm and a second mowing device for cutting a lower part of a graining part. The present invention relates to an input-type combine harvesting pretreatment device configured to supply and convey only a graining portion of a harvested culm toward a rear threshing device.

[Conventional technology]

In general input type combine harvesters, since all the cut grain culms are supplied to the threshing device for printing, the grain culm, such as rice and wheat, which has a grained part only at the upper end of the culm is harvested. It is preferable to cut only the graining part of No. 3 and supply it to the threshing device in order to improve the processing capacity and the sorting performance. However, if only the grained part is cut off, the stock left uncut in the field may hinder the next plowing work. Therefore, as disclosed in Japanese Patent Laid-Open No. 63-7711, the first
There has been a device in which a mowing device and a second mowing device are arranged in front and rear, and after the graining part is mowed by the first mowing device, the uncut stock is mowed near the ground by the second mowing device.

[Problems to be Solved by the Invention] In the mowing pretreatment device as cited above, for example, when performing mowing work while rotating the machine body in a field,
As shown in FIG. 8, the cutting area of the first cutting device (10) and the cutting area of the first cutting device (10) are misaligned. Then, in the area (S) on the inner side of turning as shown by the diagonal lines, the tip side of the planted culm is
Cutting the uncut grain culm, which is guided by the weeding tool (14) or the side wall at the front end to the outside laterally, but has not finished cutting the graining part, from the plant base with the second cutting device (12). was there. Therefore, the grain culms in the shaded area (S) were cut but not collected, and the grain loss was caused by that amount.

In the present invention, in such a mowing pretreatment device, the main purpose is to eliminate the harmful effects of cutting the uncut grain culms and causing the loss of the grains when swirling is performed during the mowing operation, and Another purpose is to enable good harvesting of not only wheat but also other effects.

[Means for Solving the Problems]

The feature of the present invention for achieving the above-mentioned object is to provide a raising device that causes a plurality of rows of planted grain culms to be in an upright posture, and then arrange the first mowing device at a lower part of the first mowing device. A pair of pinching / conveying devices for nipping and conveying the grain culms of each line cut by the machine in an upright posture are provided facing each other so that their conveying paths are adjacent to each other, and each nipping / conveying device is detachably clamped to the chain with protrusions. Composed of rails,
Further, the second reaping device is detachably arranged at a lower portion on the terminal side of the sandwiching and conveying device.

[Action]

The planting side of the planted culm, which was caused to stand in a standing position by the raising device, is cut by the first reaping device provided at the lower position,
The harvested grain culms of each row are sandwiched and conveyed rearward by the sandwiching and conveying device while standing. Then join several articles,
At the end portion of the sandwiching and conveying device where the grain culms of each row merge, the lower portion of the graining portion is cut by the second cutting device. The cut granulation part is supplied and conveyed to the threshing device.

Also, when using this pre-mowing device to mow crops with expanded stems such as soybeans, remove the nipping rail and the second mower of each nipping and conveying device, and remove the gap between each pair of protruding chains. Widen. Then, the crops caused by the pair of raising devices are mowed by the first mowing device, and each row is locked and conveyed backward by the cooperation of the pair of chains with protrusions.

[Effect of the invention] Therefore, according to the present invention, even when performing the work while turning the machine body, there is no concern of cutting down the grain culm which has not yet trimmed the graining part from the plant base side, and the grain resulting therefrom. Will not cause a loss. Moreover, since the nipping rail and the second cutting device are detachable, not only rice and wheat but also various crops such as beans whose stems are spread laterally can be cut.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 7 shows the whole of the throw-in type combine according to the present invention. This throw-in type combine has a cutting body (B) provided at the front end of a traveling vehicle body (A) having a pair of left and right crawler traveling devices (1) so as to be able to move up and down, and on the traveling vehicle body (A) located behind it. , Threshing section (2), sorting section (3),
It is equipped with an axial-flow threshing device (C) consisting of a recovery unit (4).

The mowing unit (B) includes a mowing pretreatment device (5), an auger (6), and a scraping device (7) having three rotating drums (7A) to (7B). The planted grain culms are raised by the pre-cutting device (5) to cut off the grained part, and the cut grained parts are conveyed to the middle of the cutting width by the auger (6) and collected to collect the grained part. Is conveyed upward and backward through the conveying path (R) by the scraping device (7) and supplied to the axial flow type threshing device (C).

As shown in FIG. 2, the pre-mowing treatment device (5) has 6
Raising device for raising the planted culm of the strip in a standing position (9)
A first harvesting device (10) for cutting off the plant root of the planted grain stalk that has been raised, and 6 rows of grain stalks clipped by the first slicing device (10) are nipped and conveyed in an upright posture, and The sandwiching and conveying device (11) joins two lines each, and the second cutting device (12) and the like for cutting the lower part of the grain-bearing part of the grain culm conveyed by the sandwiching and conveying device (11).

As shown in FIG. 1, the raising device (9) has a total of 6
There are two pieces, and two pulling claws (9a) are provided to face each other. A pair of raising devices (9) for arranging the planted culms of the line separated by the weeding tool (14) at the tip.
Guide it in between and raise it using the raising claw (9a). Near the ground behind these raising devices (9), a first mowing device (10) for cutting off the raised root of the planted grain culm is provided over the entire width of the device.

As shown in FIGS. 3 to 5, the holding and conveying device (11) is a device in which a rotating chain (15) with a protrusion and a holding rail (16) having a U-shaped cross section are closely arranged. They are provided below and behind the sushi device (9). Like the pulling device (9), the sandwiching and conveying device (11) is paired by two, and the conveying routes are faced so as to be adjacent to each other. Grain stalks mowed by the first reaping device (10) are nipped and conveyed rearward at each strip, and merge at every two stalks at the terminal end.

The sandwiching rails (16) are attached to the lower weeding frame (17) in pairs, and are arranged in the middle of the paired raising devices (9). Supplementally, each grass frame (17)
A front stay (18A) and a rear stay (18B) are detachably provided in a vertical position, and a pair of holding rails (16) are provided on both sides of the upper ends of these stays (18A) and (18B) with leaf springs (19). ) Is attached. The elastic force of the leaf spring (19) clamps the grain culm being conveyed. Further, a rail cover (13) for closing the gap between the pair of sandwiching rails (16) is provided on one of the pair of sandwiching rails (16) so that grain culms, weeds, etc. can enter the gap. I try not to.

The second reaping device (12) has a small width, and the front part of the second reaping device (12) is located at the lower side of the terminal side of the paired holding and conveying device (11).
Individually arranged (see FIG. 1). The second harvesting device (12) is bolted to the outer frame (21) provided on the harvesting part frame (20), and the bolt hole (21
The height can be adjusted in four steps by changing a) (see Fig. 2). The second cutting device (12) is used to cut the lower part of the granulation part of the grain culms which have joined at the end of the sandwiching and conveying device (11).

An ear tip locking transport device (22) is provided at an upper portion on the terminal side of the sandwiching transport device (11). The tip locking transfer device (22) includes a second drive shaft (31) having a hexagonal cross section, which will be described later.
It has a structure that can be moved up and down along. Second
The graining portion cut by the reaping device (12) is guided to the rear by the locking claws (22a) of the tip locking and conveying device (22), laid down inside, and thrown into the auger (6).

Between the rear end portion of the second reaping device (12) and the front end side of the bottom plate (23) of the auger (6), there is a tip locking transport device (22).
A cover (24) is installed to smoothly guide the granulated part thrown out from the auger (6). This cover (24) has a hinge (25) at the rear end of the second reaping device (12).
Front cover (24A) and bottom plate (23)
The rear cover (24B) attached via a hinge (26) to the front end of the is overlapped and connected with a bolt. Even if the distance between the hinges (25) and (26) is changed by vertically adjusting the second reaping device (12), the front cover (24
The degree of overlap between A) and the rear cover (24B) can be changed to adjust the length of the front and back to accommodate any situation.

Next, the transmission structure of the pre-mowing treatment device (5) will be briefly described.

As shown in FIG. 2, a hydrostatic continuously variable transmission (HST) is provided above the auger (6), and the output shaft (27) of this hydrostatic continuously variable transmission (HST) is Raising device (9)
It is interlockingly connected to the raising drive shaft (28) provided at the upper end of the via a transmission belt (V). Further, a vertical drive shaft (29) corresponding to each lift device (9) is connected to the raising drive shaft (28) by a bevel gear, and the lower end of the vertical transmission shaft (29) is raised. The bevel gear is connected to the first drive shaft (30) for the brushing device (9) and the second drive shaft (31) for the tip locking portion transport device (22). Furthermore, the third drive shaft (3) for the sandwiching and conveying device (11) is attached to the lower end of the second drive shaft (31).
2) is connected to the bevel gear, and the holding and conveying device (11) has a fourth drive shaft (3) for the first and second mowing devices (10) and (12).
3) are linked together.

The connecting portion between the vertical transmission shaft (29) and the second drive shaft (31) and the connecting portion between the second drive shaft (31) and the third drive shaft (32) are
Both are housed in bevel gear cases (34), (35). These bevel gears (34), (35) are fixed to a vertical frame (37) supported by a case (36) of the raising drive shaft (28) and a weeding frame (17).

The pre-mowing treatment device has a structure in which the stem is spread laterally like soybeans and even a short crop can be mowed.
That is, the second reaping device (12) and the sandwiching rail (16) can be respectively removed, and by removing them, as shown in FIG. With the attached chain (15), the harvested crops can be locked and transported and can be directly put into the auger (6).

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a cutting pretreatment device for a throw-in combine according to the present invention. Fig. 1 is a plan view, Fig. 2 is a side view, Fig. 3 is a plan view of a sandwiching rail, and Fig. 4 is the same side. Fig. 5 and Fig. 5 are vertical sectional views of the same, Fig. 6 is a plan view with a holding rail removed, Fig. 7 is a vertical sectional view of a throw-in type combine, and Fig. 8 is a conventional pre-mowing treatment device. FIG. (9) …… Raising device, (10) …… First harvesting device, (1
1) …… Nipple transport device, (12) …… Second mowing device, (1
6) …… Clamping rail, (15) …… Chain with protrusions,
(C) ... Threshing device.

Claims (1)

[Claims] 1. A reaper for cutting a cultivated grain culm, comprising a first reaping device (10) for slicing a plant root side of a planted grain culm and a second reaping device (12) for cutting a lower part of a graining part. A harvesting pretreatment device for an input combine harvester configured to supply and convey only a grain portion toward a rear threshing device (C), and a raising device (9) for causing a plurality of rows of planted grain culms to stand upright After that, the first reaping device (10) is arranged in the lower part after this, and the nipping and conveying device (11) for nipping and conveying the grain culms of each row cut by the first reaping device (10) in an upright position. ) Are provided facing each other so that their conveying paths are adjacent to each other,
Each nipping / conveying device (11) is composed of a chain (15) with a protrusion and a detachable nipping rail (16), and further, the second reaping device (1) is provided at a lower portion on the terminal side of the nipping and conveying device (11).
2) The harvesting pretreatment device for the combine harvester that is detachably installed.