JPS585450Y2 - Combine harvester - Google Patents

Description

[Detailed Description of the Invention] The present invention has a stock base that can be freely oscillated relative to the rear conveyance mechanism with the starting end as the center, below the rear conveyance mechanism that feeds the stem culms from the reaping section to the threshing device. A combine harvester, comprising: a clamping conveyance device; and a handling depth adjustment mechanism capable of changing the holding position of the conveyed stem culm in the rear conveyance mechanism from a starting end to a terminal end of the rear conveyance mechanism. This invention relates to a stem culm transport mechanism.

In the stem culm conveyance mechanism of the above-mentioned combine harvester, a mechanism for adjusting the handling depth has conventionally been installed below the rear conveyance mechanism in the culm length direction of the conveyed stem culms, as shown in Japanese Utility Model Application Publication No. 48-17327. It has been known to have a stock head clamping and conveying device that swings and displaces the stock head in the vertical direction, but when such a mechanism is used, there is a space below the stock head clamping and conveying device for the swinging displacement. This requires a large moving space and a space for arranging a swinging displacement device, which limits how the space below the stock clamping and conveying device can be used.

Therefore, it was considered to use a device known from Japanese Utility Model Application Publication No. 49-127330, which adjusts the handling depth by oscillating the stock head clamping and conveying device in the lateral direction below the ear tip conveying device. - The handling depth adjustment mechanism by this device is such that the posture of the conveyed stem culm is made oblique by the gripping conveyance device which is oscillated in the horizontal direction, and the straight line distance between it and the upper tip conveyance device is lengthened. It is a device that adjusts the depth.If you try to increase the handling depth by increasing the straight line distance, the gripping and conveying device must be further oscillated in the direction of lateral force. Due to the large change in the posture of the stem culm being transported by the clamping and conveying device, the transfer of the conveyed stalk culm to the feed chain of the threshing device may not be carried out smoothly enough, and the clamping and conveying device may protrude too far from the side of the machine, making it difficult to carry out work. Up.

There was a risk that this would cause some inconvenience.

The present invention solves these problems, expands the utilization of the space below the rear conveyance device, and allows the transfer of the conveyor culms to the feed chain of the threshing device to be carried accurately and reliably, with a small amount of rocking displacement. The purpose of the present invention is to provide a stem culm conveying mechanism for a combine harvester that can sufficiently adjust the handling quality by changing the amount of chestnuts handled.

In the stem culm conveyance mechanism of the combine harvester described above, the present invention comprises one rear conveyance mechanism that is vertically overlaid with a head locking rear conveyance device and a stock head rear conveyance device, and also includes a swinging motion of the stock head clamping conveyance device. The displacement direction is configured to be freely displaceable in the lateral direction, so that the starting end of the stock head rear conveyance device and the starting end of the stock head clamping and conveying device are arranged so that the starting end of the stock head rear conveying device and the starting end of the stock head clamping and conveying device are aligned as viewed in the direction of the swing center axis of the stock head holding and conveying device. It is characterized by overlapping.

That is, since the stem culm is conveyed by three members: the tip-locking rear conveyance device and the stock head conveyance device which are stacked vertically, and the stock head clamping conveyance device which is oscillated in the lateral direction, the above-mentioned stock head clamping means Due to the lateral rocking displacement of the conveyance device, the upright stem culms are bent laterally between the plant head rear conveyance device and the plant head clamping conveyance device, and the upright stem culms are bent laterally between the plant head rear conveyance device and the plant head clamping conveyance device. The handling depth is adjusted by changing the distance from the device and being pulled out.Rather than changing the linear distance, the handling depth of the stem culm can be adjusted by a small amount of rocking displacement in the lower layer. In addition, since the stock clamping and conveying device is capable of swinging in the lateral direction, the space below it can be utilized more widely.

The conveying stem culm can be reliably and accurately transferred to the feed chain by the above-mentioned plant rear conveyance device.

Next, embodiments of the present invention will be described in detail based on illustrative drawings.

FIG. 1 shows the entire combine harvester.

In other words, - a lifting reaping mechanism 1 is provided at the front part for raising and reaping the planted culm, and the culm confluence point A of this reaping mechanism 1 is provided.
From there, the reaped husk culm is changed to a horizontal position and transported by a rear transport mechanism 3 toward a threshing device 2 provided on a traveling vehicle body 4 located at the rear.

Then, the feed chain 5 of the threshing device 2 is configured to clamp and convey the intermediate portion of the husk in the horizontally suspended position, and the threshing device is sent inside to handle and thresh the grain.

Next, the structure of the lifting reaping mechanism 1 shown in FIGS. 1 and 2 will be explained.The first section is located at the front part and is inclined rearward and upward. 2nd, 3rd
The lifting devices 6, 7, and 8 are sequentially arranged side by side in the lateral direction of the fuselage.

The first and second lifting devices 6, 7 have lifting claws 6', 1', 6', 6', 1', 6', 6', 6', 6', 6', 1', 6', 6', 6', 6', 7', 6', 6', 6', 6', 6', 6', 6', 6', 6', 6', 6', 1', 6', 6', 6', 6', 1', 6', 6', 6', 6', 1', 6', 6', 6', 1', 6', 6', 1', 6', 1', 6', 6', 6', 1', 6', 6', 1', 6', 6', 6', 6', 1', which are respectively projected from opposite sides.
・It is designed to be triggered and acted upon.

- A first conveyor belt 9 with claws is provided below the first lifting device 6 and is inclined rearward and upward in a side view, while being inclined toward the rear of the second lifting device 7 in a plan view. An auxiliary transport device 10 is provided.

Further, a rotary body 11 with one claw is provided below the second lifting device 7, and a first lifting device 6 is provided toward the rear in a plan view covering the upper part of the rotating body 11.
A cover unit 13 having lateral sides 12 inclined toward the rear side.
A second auxiliary conveyance device 1-4 is provided.

In the middle part of the five-car auxiliary conveyance device 10, 14, there is an intermediate plate 1 having fins 15 and 16 facing the respective conveyance parts.
7 is provided.

With this configuration, the first. Below the middle part of the culm being raised by the second lifting device 6°7.

It is divided into left and right parts by the middle plate 17, and the lower part of the divided middle part is divided into the first part. Second auxiliary conveyance device 10
．． 14 to the rear, and both auxiliary conveyance devices 10,1
After cutting the base of the stock with the cutting blade 18 located below the end of 2.
Merging point A after the end of both auxiliary conveyance devices 10°14
A first lifting path 19 is configured to merge below the intermediate portion.

During this lifting, reaping, and merging work, the culm tips that are simultaneously pulled up by the single-car pulling devices 6 and 7 are not separated.

The third lifting device 8 is the second lifting device γ.
Lifting claw 8' protruding from the side toward the side...
・It is designed to be more effective.

Upper and lower 2
Rotating body with step claws 20.21. A lateral side 22 of the cover unit 13 covering the upper side is formed so as to be inclined toward the rear of the third lifting device 8, and serves as a guide portion to constitute a third auxiliary conveying device 23.

In this way, the second lifting path 24 is constructed.

With this structure, the middle part of the planted stem culm pulled up by the third lifting device 8 is sent to the rear of the third lifting device 8 by the third auxiliary conveyance device Auxiliary conveyance device 2
The cutting blade 8 near the end of the culm is arranged to cut off the base of the planted stem culm.

On the rear side of the second and third auxiliary conveyance devices 14 and 23, there is a head-holding lateral conveyance device 25 that sends the cut husk sent by the third auxiliary conveyance device 23 toward the merging point A. and a stock stopper horizontal conveyance device 26 are provided.

The rear sides 27 of the covers 1 and 3 of the second and third auxiliary conveyance devices 14.23 are connected to the both lateral conveyance devices 25.26.
It is formed along the lateral conveying devices 25 and 26 and serves as a holding tool to prevent the culm from detaching from the lateral conveying devices 25 and 26.

The terminal end of the stock head locking horizontal conveyance device 26 is further bent and extended rearward and upward, sandwiching the merging point A.

A claw-equipped rake rotor 28 is provided at a location facing the extended portion 26a, and is configured to rake and send out the stem culms that have merged at the merging point A toward the rear end of the extended portion 26a.

Next, the rear conveyance mechanism 3 for conveying grain culms from the confluence point A to the threshing device 2 will be explained based on FIGS. 2 and 3.

A rear tip-locking rear conveyance device 30 with claws is provided in the upper stage, and the starting end faces the terminal end of the ear tip lateral conveyance device 25, and the terminal end is placed on the entrance steel plate 29 on the front side of the threshing device 2. A starting end sprocket 3 is installed on the end sprocket 31 of the extension portion 26a of the stock horizontal conveyance device 26 and the same M32.
3 is pivoted.

The rear conveyance mechanism 3 is constructed by providing a rear conveyance device 34 with its terminal end close to above the start end of the feed chain 5.

The shaft 3 is placed below the stock back conveyance device 34.
At 2, there is disposed a stock head holding and conveying device 36 which pivotally supports the starting end sprocket 35 and has a conveying length approximately 2/3 of the five stock base rear conveyance device 34.

Configure it like this. As shown in FIG.
When viewed in the axial direction, the terminal end of the extension portion 26a is overlapped with the starting ends of the two-plant base clamping conveyance device 36 and the plant base rear conveyance device 34, and the stem culm sent from the free-flowing point A is transferred to the rear conveyance mechanism 3. The arrangement is such that the stock is smoothly fed into the stock clamping and conveying device 36.

The rear conveyance mechanism 3 and the stock clamping conveyance device 36 have conveyance directions parallel to each other, rearward and upward in side view.

The stock holding and conveying device 3-6 is configured to be able to swing laterally around the shaft 32.

and. The stock head rear conveyance device 34 is provided with a guide rod 37 so that no clamping force is applied from its starting end until the conveyance action of the stock head clamping and conveying device 36 is completed. A clamping rail 38 is provided at the portion.

With this configuration, the rear conveyance device 3
4, when the stock head clamping and conveying device 36 is inclined in plan view, it gradually pulls out the stock head of the grain culm fed from the merging point A at the extension portion 26a, and removes the stock part in an amount that matches this inclination angle. After being pulled out, the stock is held and transported at the terminal end of the rear transport device 34.

Therefore, by adjusting the swing angle of this stock head clamping and conveying device 36, the culm clamping position at the terminal end of the one stock head rear conveying device 34 is adjusted, so that the terminal end is placed in a horizontally suspended position and fed. The handle on the chain 5 adjusts the handling depth of the culm being passed.

Furthermore, when passing the receptacle to the feed chain 5, the stem culm is always fed at a fixed position with respect to the feed chain 5, so it is reliable.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the stem culm conveyance mechanism of the combine harvester according to the present invention, and FIG. 1 is a side view showing the entire combine harvester;
FIG. 2 is a plan view showing the front part of the combine harvester, and FIG. 3 is a schematic side view of the main parts. 1... Reaping section, 2... Threshing device, 3.
...Backward conveyance mechanism-s...Feed chain, 26a・River...Stem and culm conveyance device, 30...
Rear conveyance device with tip locking. 34... stock rear transport device, 36...
Stock clamping and conveying device, A... Merging point.

Claims (1)

[Scope of utility model registration request] Below the rear conveyance mechanism 3 that feeds stem culms from the reaping section 1 toward the threshing device 2, there is provided a stock head clamping conveyance device 36 that can freely swing relative to the rear conveyance mechanism 3 around the starting end. , the stem culm conveyance of a combine harvester is provided with a handling depth adjustment mechanism capable of changing the holding position of the conveyed stem culm in the rear conveyance mechanism 3 from the starting end to the terminal end of the rear conveyance mechanism 3; In the mechanism, the rear conveyance mechanism 3 is vertically overlapped with the ear tip locking rear conveyance device 30.
and a stock head rear conveyance device 34, and the direction in which the stock head holding and conveying device 36 swings is movable in the lateral direction.
A stem culm conveying mechanism for a combine harvester, characterized in that a starting end of the stock head clamping and conveying device 36 overlaps with the starting end when viewed in the direction of the swing center axis of the stock head clamping and conveying device 36.