JPS646040Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention is a threshing device in which the angle of the chaff sheave, which is the horizontal crosspiece of the swinging sorting device, is adjustable with respect to the entire swinging sorting device, and This invention relates to an adjustment device that can be adjusted according to the degree of maturity and harvesting time.

(b) Conventional technology When harvesting grain culms earlier than the appropriate harvesting time, there is sufficient moisture left in the leaves and stems, and if fine grains are mixed in these chaffs, it is difficult to separate them. It is necessary to rock on top for a long time.

On the other hand, grain culms that are past the optimum harvesting time have a low moisture content in their leaves and stems, and their chaff is broken into pieces, so they can be sorted out by just shaking them slightly.

By changing the chaff sheave angle of the swing sorting device according to these cases, the optimum sorting condition can always be obtained and the reaping efficiency can be improved.

A technique for adjusting the angle of the chaff sheave for this purpose has already been applied for.

(c) Problems to be solved by the invention The present invention attempts to make it possible to adjust the chaff sheave even while the threshing device is in operation.

A conventional chaff sheave adjustment device is one in which a long hole is made in the side plate of the threshing device, and the lever, which swings integrally with the swinging sorting device, is adjusted by stopping the swinging sorting device from the outside.

The other structure was such that the movement of the swing sorting device was absorbed by interlocking wires and adjusted by a lever on the outside of the machine.

However, in the former case, it was necessary to stop the machine for adjustment, and in the latter case, the structure of the Wyler system became complicated, making it difficult to disassemble and reassemble the swinging sorting device.

The present invention attempts to solve these problems by using a simple link mechanism.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

Chaff sheave 18 is attached to the side plate 26 of the swing sorting device C.
The upper end of the chaff sheave 18 is pivotally supported by a pivot shaft 18a, the lower end of the shaft sheave 18 is pivoted by a pivot shaft 18b, and the angle adjustment lever 12, which can be rotated and fixed, is supported by a pivot shaft 28. The rotating rod 15, which is pivotally connected to the side plate 22 of the threshing device and connects the angle adjustment lever 12 and the swing linking rod 16, is connected to the upper and lower pivot pins 29,
38 so as to be rotatably supported, and the rotation locus of the rotation rod 15 is made to substantially coincide with the rocking locus accompanying the rocking of the rocking sorting device.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

FIG. 1 is an overall side view of the combine harvester.

A weed splitting plate 1 is protruded from the tip of the machine body, and the base part of the grain culm is weeded by the weed splitting plate 1 and guided to a pulling device 2.

While the lodging grain culm is raised by the raising device 2, the stock base is raked by the raking device 4, and cut by the cutting blade 3. The cut stock part is transported to the lower part of the vertical transport device 7 by the stock transport device 5, and after being transferred to the vertical transport device 7, it is rapidly lifted and clamped to the feed chain 8 of the threshing device 9.

One of the ears is guided from the raising device 2 to the upper conveying device 6 and conveyed to the entrance of the threshing device 9.

The stock head is held and conveyed by feed chain 8,
The tip portion passes through a threshing device 9 and is threshed.

The waste culm after shredding is conveyed to the waste culm processing device 11 by the waste culm chain 10.

The present invention relates to a chaff sheave angle adjusting device for a swing sorting device C provided in a side plate 22 of a threshing device in FIG.

Fig. 2 is a side view of the swing sorting device C, Fig. 3 is a plan view of the chap sheave angle adjustment device, Fig. 4 is an enlarged side view of the link mechanism of the chap sheave angle adjustment device, and Fig. 5 is an enlarged side view of the link mechanism of the chap sheave angle adjustment device. The drawings showing the embodiment, FIGS. 6 and 7, are drawings showing the angle adjustment lever in a rotated state.

The swing sorting device C is arranged at the lower part of the handling cylinder.

A sorting plate 27 is installed in front of the left and right side plates 26, 26 of the oscillating sorting device, and a chaff sheave 18 is arranged from the cutting edge of the sorting plate 27 to the rear end, and is constituted by a horizontal bar inclined rearward and upward. ing.

In the present invention, the angle of some of the rear sorting plates of the chaff sheave 18 can be adjusted freely, thereby improving the sorting performance and increasing the sorting capacity.

The swinging sorting device C is suspended at both rear ends by hanging rods 14, 14, and at the front by hanging rods 21, 21.
The swinging link 19 is swung back and forth by the crankshaft 20, and the entire oscillating sorting device C is swung.

Of the grains that are threshed in the handling drum and fall into the swing sorting device C through the crimp net or dust outlet, fine grains fall onto the conveyor 24 first against the sorting wind of the sorting fan 23. The immature grains and fine grains mixed with straw are blown away by the sorting wind and fall onto the No. 2 conveyor 25.

The straw waste and dust that have not fallen from the top of the oscillating sorting device C are suctioned by the suction dust removal fan 13 and discharged outside the machine.

In such a swinging sorting device, the present invention adjusts the angles of the first four to five chaff sheaves 18 after the sorting plate 27 is cut, since these have the greatest influence on sorting.

A pivot shaft 18a at the upper end of the chaff sheave 18 is pivotally supported on a side plate 26 of the swing sorting device C, and a pivot shaft 18b at the lower end of the chaff sheave 18 is pivoted on a swing linking rod 16 on the outside of the side plate 26. . Since the pivot shaft 18b rotates in a fan shape around the pivot shaft 18a, the side plate 26 has an elongated hole through which the pivot shaft 18b can rotate.

On the other hand, the angle adjustment lever 12 is connected to the side plate 22 of the threshing device.
The end of the angle adjusting lever 12 extends inside the side plate 22 of the threshing device to form an arm 12b.

and the side plate 2 of the threshing device of the angle adjustment lever 12.
The part that protrudes from 2 is linked to a lever located on the driver's seat.

The present invention is based on the arm 12b of the angle adjustment lever 12.
Attach the upper part of the rotating rod 15 to the tip of the pivot pin 29.
The lower end of the rotating rod 15 is pivotally supported to the swing linking rod 16 by a pivot pin 38.

The rotating rod 15 freely rotates as the oscillating sorting device C swings, and absorbs the oscillating motion of the oscillating sorting device C.

After adjusting the angle of the chaf sheave 18, the angle adjustment lever 12 is fixed at the adjusted position by a stopper 12a, and does not swing around with respect to the movement of the swing sorting device.

The angle adjustment lever 12 is pivotally connected to the side plate 22 of the threshing device by a pivot shaft 28, and can be fixed after the adjustment rotation.On the contrary, the portion from the swing linking rod 16 to the chaff sheave 18 is Since it is integrated with the device C and swings, the movement between the two is controlled by the rotating rod 15.
It is absorbed by the oscillation of the

When the angle adjustment lever 12 is rotated to adjust the angle of the chaf sheave 18, the movement of the angle adjustment lever 12 is controlled by the rotation rod 15 and the swing link rod 16.
The angle is adjusted accordingly.

When the angle adjustment lever 12 is fixed, the position of the pivot pin 29 is fixed, and as the swing sorting device C swings, the pivot rod 15 rotates around the pivot pin 29 as shown in FIG. The pivot pin 38 rotates on a rotation locus A of a circle.

On the other hand, the pivoting rod pivot pin 38 on the swinging linking rod 16 differs depending on the angle adjustment position of the chaff sheave 18, but since it is suspended by the hanging rods 14 and 21, both hanging rods 1
4 and 21, it is swung along a swiveling trajectory B synthesized by 4 and 21.

In the present invention, the length of the rotation rod 15 and the pivot pin 29,
38, a swing trajectory A that overlaps the swing trajectory B is selected and constructed.

In this way, the rotation rod 15 and the originating pins 29, 38
By arranging this position, the rotating rod 15 absorbs the swinging motion of the swinging sorting device C, so that the angle adjustment lever 12 and the pivot shaft 28 do not need to be moved.

Therefore, the angle adjustment lever 12 can be pivotally supported on the side plate 22 of the threshing device by the pivot shaft 28, and the angle of the chaff sheave 18 can be adjusted even while the threshing device is in operation. .

3 and 5 show plan views of the angle adjustment device.

In the case of Figures 2 and 3, the angle adjustment lever 12
The tip 12b of the pivot shaft 28 is disposed inside the side plate 22, and the pivot pin 29 and rotation rod 15 are also disposed inside the side plate 22, so that there is no long hole for the pivot pin 38 to rotate. is also not necessary.

With the above configuration, the angle adjustment lever 12 for adjusting the chaff sheave 18 can be pivotally supported on the side plate 22 of the threshing device, and the angle of the chaff sheave can be adjusted even while the threshing device is in operation.

Further, as shown in FIG. 7, if the swinging trajectory A of the pivoting rod 15 and the swinging trajectory B of the swinging sorting device C do not completely match, the pivoting rod 1 of the pivot pin 38
This can be absorbed by enlarging the insertion hole in 5 and providing play.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, in the conventional chaff sheave adjustment device, since the angle adjustment lever was attached to the swing sorting device, it was necessary to stop the drive of the threshing device when adjusting the chaff sheave angle.

In the present invention, since the angle adjustment lever 12 can be pivotally supported on the side plate 22 of the threshing device, the angle adjustment lever 12 can be adjusted from the outside of the side plate of the threshing device even during operation without stopping the operation of the threshing device.
This can be adjusted by.

Second, even when an angle adjustment lever is provided on the swinging link 16 of the swing sorting device C, the angle adjustment lever and the lever on the driver's seat can be connected by a wire to operate the threshing device. However, in this case, it is necessary to install the wire from the outside to the inside of the side plate 22 of the thresher, and the wire may get caught on something, or grains or grains may get caught on the wire. There was a problem with straw debris getting caught.

The present invention was able to solve these problems by making the side plate 22 of the threshing device adjustable from the outside using a simple link mechanism.

[Brief explanation of the drawing]

Figure 1 is an overall side view of the combine, Figure 2 is a side view of the swing sorting device C, Figure 3 is a plan view of the chaff sheave angle adjustment device, and Figure 4 is an enlarged side view of the link mechanism of the chaff sheave angle adjustment device. , FIG. 5 is a drawing showing another embodiment of the link mechanism, FIGS. 6 and 7
The figure shows the angle adjustment lever in a rotated state. A... Rotating trajectory of the rotating plate, B... Rocking trajectory of the swinging link, C... Rocking sorting device, 12... Angle adjustment lever,
12b...Arm inside the side plate of the threshing device, 15...
Rotating rod, 16... Swinging link, 18... Chaff sheave,
22... Side plate of threshing device, 29, 38... Pivot pin.

Claims (1)

[Scope of utility model registration request] Chaff sheave 18 is attached to the side plate 26 of the swing sorting device C.
The upper end of the chaff sheave 18 is pivotally supported by a pivot shaft 18a, the lower end of the shaft sheave 18 is pivoted by a pivot shaft 18b, and the angle adjustment lever 12, which can be rotated and fixed, is supported by a pivot shaft 28. The rotating rod 15, which is pivotally connected to the side plate 22 of the threshing device and connects the angle adjustment lever 12 and the swing linking rod 16, is connected to the upper and lower pivot pins 29,
38, the threshing device is rotatably supported, and the swinging trajectory A of the rotating rod 15 is made to substantially match the swinging trajectory B accompanying the swinging of the swinging sorting device C.