JPH046513Y2 - - Google Patents

Description

[Detailed description of the invention] The machine frame of the reaping device in a conventional combine harvester must support the device on various parts such as a cutting body, a raking wheel, and a raking body. The reaping device of a combine harvester that reaps grain culms has a wide width and rolls, while a self-retracting combine harvester is installed on one side of the machine and the harvested grain culm is sandwiched between the feed chain of the threshing device. The grain culm transport device that supplies the grain to the starting end of the shedding rail shakes a lot and becomes unstable, making the transfer of the merged grain culms to the grain culm transport device unsmooth, resulting in culm leakage and culm clogging. There were problems such as the occurrence of

In addition, since the amount of grain culms increases and a device for changing the direction of conveyance of the harvested grain culms is provided at the confluence section of the harvested grain culms, there are problems such as extreme instability.

The purpose of the present invention is to solve the above-mentioned problems, and includes a plurality of raking wheels that are pivotally supported at the front part of the cutting blade to scrape multiple rows of grain culms into at least two raking paths. A reaping device is configured such that the reaped grain culms raked into one raking path merge with the reaped grain culms raked into the other raking path, and the reaping frame of the reaping device is The upper part is pivoted to a horizontal shaft installed above the front of the machine body, and is fixed to the lower part of a cylinder frame in which a transmission shaft is installed, and the reaped grain culm is supplied to the threshing device on the side where the reaped grain culm joins. In a combine harvester equipped with a grain culm transport device, a frame member in the front and rear direction is arranged closer to the grain culm transport device than the cylindrical frame,
The horizontal shaft extends toward the grain culm transport device, the upper part of the frame member is pivoted to the extension of the horizontal shaft, the lower part is lower than the cylindrical frame, and is lower than the starting end of the grain culm transport device. It is also characterized in that it is configured to be connected to the side part of the reaping frame on the outside so as to intersect with the grain culm conveying device in plan view.

The embodiments shown in the drawings will be explained below.
Reference numeral 1 denotes a threshing device mounted on one side of a machine platform 3 having a traveling device 2, and the other side of the machine platform 3 is equipped with an operation panel, a pilot's seat, a shell grain tank, an engine, etc. in order from the front. A reaping device 4 and a grain culm conveying device 5 for supplying the reaped grain culms to the rear threshing device 1 are provided at the front of the threshing device 1, and the reaping device 4 has a cutting body 6... Two pairs of left and right grain culm raising bodies 7
...and a scraping wheel 8 consisting of four star foils that form left and right scraping passages in a mutually engaged state...
...and the panicle side that protrudes from the top of the stock raking chains 9, 9 and intermediate raking wheels 8, 8 along each raking path toward the center front of the machine width and has a large number of raking claws. Raking chains 10, 10, and a panicle side raking chain 1 with raking claws extending from the front to the rear of the raking wheels 8, 8 on both sides.
0', 10', a cutting blade 11, and a horizontal transfer chain 12 whose transfer action section extends from the rear of the right raking passage to the rear of the left raking passage, and the grain culm conveying device 5 has a triangular shape. It is composed of a grain side conveyor 5a stretched over the grain side conveyor 5a, and a grain base conveyor 5b extending from the end of the horizontal transfer chain 12 to the supply port of the threshing device 1. It is driven by a horizontal shaft 13 that interlocks with the output pulley, and is tilted up and down about the horizontal shaft 13 as shown in FIG. 1 to adjust the handling depth.

As shown in FIGS. 2 and 3, the reaping frame 14 includes a front horizontal frame 14a, a rear horizontal frame 14b, and left and right side frames 1.
4c and 14c are framed so that the inside becomes a space A, and a transmission for distributing power to each part of the reaping device is mounted on a mounting seat 15 fixed slightly to the right of the middle of the rear horizontal frame 14b. A transmission case 17 with a case 16 attached thereto and mounted on the horizontal shaft 13 so as to be tiltable up and down is connected to the transmission case 16 by a cylindrical frame 18 in which a transmission shaft is housed, and is fixed to the left side portion of the rear horizontal frame 14b. The mounting seat 15' is connected to the horizontal shaft 13 by a frame member 19 so as to be tiltable up and down.

By providing the frame member 19, the reaping frame 14
The cylindrical frame 18, the holding cylinder of the horizontal shaft 13, and the reaping frame 14 constitute a rectangular framework, which prevents twisting, lateral vibration, and vibration of the reaping device 4.

Further, the rear part of the grass dividing frame 20 to which the grass dividing body 6 is attached to the front part is fixed at two points: the front horizontal frame 14a and the cutting blade frame 21 to which the cutting blade 11 is attached, The grain culm pulling body 7... is attached to the center and both side weeding frames 20... to the brackets 22...
are connected and supported by.

The transfer action portion of the lateral transfer chain 12 faces above the space A as shown in FIG.

In the above-mentioned device, when the pretreatment clutch is engaged, the drive sprocket 23 of the transmission case 16 drives the lateral transfer chain 12, and the drive sprocket 24 of the transmission case 16a rotates the left scraper chain 9; 9 rotates the shaft of the raking wheel 8 in front of it in the clockwise direction, so each raking wheel 8 on the right side is driven in a meshed state, and along with this, the ear side raking chains 10 and 10' also rotate. Rotate.

When the machine is moved forward in this state, the four rows of planted grain culms are divided by the weeding body 6..., and are also raised by the grain culm pulling body 7..., and the raking wheels 8..., stock head raking Chains 9, 9 and panicle side scraped chains 10, 10,
10', 10'... and cut by the cutting blade 11.
Grain culms in the row are transferred to the horizontal transfer chain 12 and the ear side conveyor 5a.
It is transferred to the left side of the front part of the grain culm, and joins two rows of harvested grain culm from the raking passage b on the left side.
The ears of the merged grain culms go around as they are and are sent later by the ear side conveyor 5a, and the stock part is inherited by the stock part conveyor rear b and is sent later, and is further transferred to the feed chain of the threshing device 1. The grain is transferred to 1a for threshing.

Then, from the grain culms that are raked in from the raking passage a on the right side and transported laterally by the lateral transfer chain 12, straw waste called hakama at the base of the stock, entangled weeds, etc. fall; Since it is configured in the space A, the straw waste and the like do not get entangled with the reaping frame 14 or accumulate, but fall directly to the ground.

In the present invention, as described above, a plurality of raking wheels are pivotally supported in the front part of the cutting blade 11, and at least two grain culms of a plurality of rows are
Grain is harvested by raking in two raking passages a and b, and the harvested grain culm raked in one raking passage a is transferred to the other raking passage b.
The reaping device 4 is constructed so as to join the reaped grain culm that has been raked into the reaping frame 14 of the reaping device 4.
is fixed to the lower part of a cylindrical frame 18 whose upper part is pivoted to a horizontal shaft 13 installed above the front part of the machine body 3 and has a transmission shaft installed therein, and the reaped grain culm is attached to the reaped grain culm confluence side. In a combine harvester in which a grain culm conveying device 5 for supplying to a threshing device is disposed, a frame member 19 in the front-rear direction is disposed closer to the grain culm conveying device 5 than the cylindrical frame 18, and the horizontal shaft 13 is connected to the grain culm conveying device. The upper part of the frame member 19 is pivoted to the extending part of the horizontal shaft 13, and the lower part is lower than the cylindrical frame 18 and is located outside the starting end of the grain culm conveying device 5. Since the configuration is such that it is connected to the side of the reaping frame 14 and intersects with the grain culm conveying device in a plan view, the reaped grain culm that has been raked from a plurality of raking paths and merged at the side of the machine width is , the grain culm conveying device 5 that moves up and down under the influence of the reaping device that tends to roll, and should inherit this.
The conveyance start end of the frame member 19 is also unstable and moves up and down, but the frame member 19 has a front portion that extends beyond the grain culm conveyance device and supports the reaping frame 14 on the outside thereof, and a rear portion that supports the reaping frame 14 on the outside of the grain culm conveying device. The reaping frame 14, particularly , it becomes possible to minimize the relative positional fluctuation between the harvested grain culm merging part and the starting end of the grain culm transport device 5, and the grain culm transport of a plurality of harvested grain culms that have been raked and merged. Inheritance to the device can be carried out reliably and orderly, and culm omission and culm clogging can be prevented.

Moreover, the front part of the frame member 19 has the cutting side 14
It protrudes outward beyond the front part of the grain culm conveying device 5 to support the sides of the grain culm conveying device 5, but since that part is configured low, the grain culm conveyed by the grain culm conveying device 5 from the confluence section The movement of the stock base is not obstructed, and the transportation posture of the grain culm and ultimately the feeding posture to the threshing device are not disturbed.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
FIG. 1 is a side view of the front part of the combine harvester, FIG. 2 is a plan view of the same as above, FIG. 3 is a plan view of the machine frame of the reaping device, and FIG. 4 is a side view of the reaping frame. 4... Reaping device, 6... Grass cutting body, 8... Rake wheel, 9... Stock head raking chain, 10, 10'... Panicle side raking chain, 12... Lateral transfer chain, 14...
Reaping frame, A...space.

Claims (1)

[Scope of utility model registration request] A plurality of raking wheels are pivotally supported on the front part of the cutting blade 11, and a plurality of grain culms are harvested by raking into at least two raking passages a and b, and the harvested grain is raked into one raking passage a. The reaping device 4 is constructed so that the grain culm joins the reaped grain culm that has been raked into the other raking passage b, and the reaping frame 14 of the reaping device 4 is constructed such that its upper part is above the front part of the machine body 3. A grain culm conveying device 5 is arranged at the lower part of a cylindrical frame 18 which is pivoted on a horizontal shaft 13 and has a transmission shaft installed therein, and supplies the reaped grain culm to the threshing device on the reaped grain culm confluence side. In this combine harvester, a frame member 19 in the front-rear direction is arranged closer to the grain culm conveying device 5 than the cylindrical frame 18, and the horizontal shaft 13 is extended to the grain culm conveying device 5 side, and the frame member 19 is The upper part is pivoted to the extension of the horizontal shaft 13, and the lower part is lower than the cylindrical frame 18 and connected to the side of the reaping frame 14 outside the starting end of the grain culm conveying device 5. A machine frame for a reaping device in a combine harvester, characterized in that it is configured to intersect with a grain culm conveying device in a plan view.