JPS596660Y2 - 3-row combine harvester - Google Patents

Description

[Detailed description of the invention] The present invention consists of three grain culm pulling devices, a first and second grain culm source transport device for transporting the harvested grain culm backwards and merging them, and a merging grain culm. A lifting and conveying device that supplies the stock side to the feed chain on the outside of the threshing device, and a head side locking and conveying device that locks and conveys the head side of the merged grain culm to the handling port side of the threshing device. This invention relates to a three-row mowing combine harvester that is disposed at the front of a rotary mowing machine with the feed chain side being the uncut side.

In the combine harvester with the above structure, conventionally, two of the three grain culm lifting devices on the opposite side of the feed chain are arranged in a pair to raise and reap the two grain culms, and The remaining one is placed on the feed chain side to pull up one row of grain culms for reaping, and the remaining one is placed behind the grain culm pulling device on the feed chain side to raise one row of reaped grain. A first grain culm conveying device that conveys the culms rearward in substantially the same direction as the traveling direction of the machine is disposed, and two rows of harvested grain culms from the first grain culm are placed behind the pair of grain culm conveying devices. A second conveying device for joining the first grain culm conveying device is arranged such that its conveying direction is orthogonal to the conveying direction of the first grain culm conveying device.

However, in the above-mentioned structure, in order to merge the reaped grain culms in two rows with the reaped grain culms in one row, the merging cannot be performed smoothly and the posture tends to be disturbed. Since the conveyance route of the harvested grain culm is long, the proportion of posture disturbance along that route increases, and the posture disorder tends to increase at the confluence, which tends to cause problems in threshing.

In addition, if the above-mentioned combine harvester is to be used as a two-row mowing type depending on the threshing load, for example, two grain culm lifting devices on the feed chain side are naturally used, but in this configuration, Although it is simply two-row mowing, it is forced to take the form of merging, and one planted grain culm is connected to two pulling devices on the opposite side of the feed chain.
They are introduced into the raising path of the rows, where they tend to cause posture disturbances, and the center divider must be aligned between the two rows of planted grain culms to be harvested. However, the work was extremely difficult and lacked workability.

In addition, during the conveyance of the grain tip side after merging, there was a drawback that grains were easily shed due to the combing action caused by the forced path deformation of the grain tip side.

The present invention was developed in view of the above-mentioned circumstances, and includes three grain culm lifting devices, first and second grain culm conveying devices for merging harvested grain culms, and a tip-side locking conveyor. The aim is to eliminate all of the above-mentioned drawbacks by appropriately improving the arrangement of the device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a three-row harvester according to the present invention will be described below with reference to the drawings.

In the figure, co is a three-row combine that mowing in a circular motion with the feed chain side outside the threshing device on the uncut side, and from the front there are three pulling devices I A, I B, and I.
C, the reaping frame 2, the transmission part 3, and the threshing device 4 are sequentially arranged, and the reaping device 19 consists of a cutting blade 5, a receiving blade 5', etc., and three grain culm raking bodies (star wheels) 6A. ,6B
, 6C, and first and second grain culm stock transport devices 7A, 7B that transport the stock end side of the grain culm, and ear end locking transport devices 17A, 17B that transport the grain end side of the grain culm are installed. has been done.

Each of the lifting devices IA, IB, and IC has an endless chain with a protrusion, and two of the three lifting devices IA and IB are located on the feed chain side (on the right side of the figure). The grain culms 8A and 8B on the right side in the figure are arranged in pairs so as to simultaneously raise them.

The remaining pulling device 1C is installed independently on the side opposite to the feed chain side (left side in the figure), and is designed to pull up one grain culm 8C in the third row from the feed chain side. It is structured as follows.

The reaping frame 2 basically has two vertical rods 2 a , 2 a' located on both sides of the fuselage, and is horizontally (transverse to the direction of travel of the aircraft) so as to interconnect these vertical rods at their front ends. The cutting blade 5 is installed on the cutting blade stand 2b, which has a substantially --shaped structure.

Immediately behind the cutting blade stand 2b, a support rod 9A is connected to the vertical rods 2a, 2.
a', and the star wheels 6A, 6B, and 6C are mounted on this support rod 9A.

Two of these star foils 6A, 6
Similar to the pulling devices, B is arranged in pairs on the feed chain side, and is adapted to rake in the two rows of grain culms cut by the cutting blade 5 and receiving blade 5'.

Further, a horizontal rod 9B is provided at a position appropriately spaced rearward from the support rod 9A, and a wide space is formed between the support rod 9A and this horizontal rod 9B.

The support rod 9A is further provided with a conveying device 7 on the stock side and the tip side.
A, 7 B, 17 A, 17 B are supported,
Conveying devices 7A, 1 on the 1st grain culm base side and ear side among them
7A is disposed behind the pair of pulling devices IA and IB on the feed chain side, facing almost the same direction as the moving direction of the machine, and is located on the other second grain culm stock side and The conveying devices 7B and 17B on the tip side are connected to the lifting device 1 on the opposite side.
They are disposed so as to extend from the rear of C and merge with the transport devices 7A, 17A, respectively, and such that the transport direction thereof is at an acute angle with respect to the transport direction of the first transport devices 7A, 17A.

These conveying devices 7 A, 7 B, 17 A, 17 B each have lower endless chains 7 a, 7 b or upper endless chains 17 a, 17 b with claws, of which the second ear-side locking conveying device 17B is in a state where its merging grain culm locking and conveying action part is directed in substantially the same direction as the traveling direction of the machine body, and the threshing device 4 is moved from the merging point P.
It extends in a straight line towards the handling port side.

Between the first and second grain culm stock transfer devices 7A, 7B and the threshing device 4, a lifting transfer device is provided at a position that connects the starting end of the feed chain 11 of the threshing device 4 immediately after the confluence P. 1
2 is installed.

This conveying device 12 has an endless chain with claws arranged at an angle, and transfers the grain culms that are merged and conveyed in a substantially upright state to the second ear-side locking conveying device 17.
It has a function of gradually tilting the upper chain 17b from an upright state in cooperation with the rear extending portion of the upper chain 17b at B, and finally introducing it into the threshing device 4 in a state of being tilted in a substantially horizontal direction.

The lifting and conveying device 12 is configured to be able to change its inclination angle, and is adjusted according to the length of the grain culm.

The transmission unit 3 consists of a series of transmission shafts, gear mechanisms, and transmission cases, and is arranged centrally at the rear of the reaping frame 2, and transmits rotational force from a drive source (not shown) to the grain pulling device 1.
A to 1C, cutting blade 5, star foil 6A to 6C, conveyance device 7 A, 7 B, 17 A, 17 B, lifting conveyance device 1
2. It is transmitted to the feed chain 11, etc., and controls these drives.

For example, when driving the cutting blade 5, the rotational force of the transmission part 3 is first converted into vertical reciprocating motion of the cutting blade driving rod 14 via the crank 13 provided at the left end of the driving part, and then the swinging arm 15 and a connecting member 16 having an elongated hole, the arc motion is converted into a lateral reciprocating motion, whereby the cutting blade 5 reciprocates in the lateral direction and becomes capable of cutting.

As explained above, in the three-row harvester described at the beginning, the present invention arranges two of the three grain pulling devices on the feed chain side as a pair, and The remaining one is placed on the opposite side of the chain, and the second one is placed behind the pair of grain culm pulling devices.
A first grain culm stock transport device is arranged to transport the harvested grain culms in a row in the same direction as the moving direction of the machine, and a first grain culm stock transport device is arranged behind the remaining grain culm pulling device to transport the harvested grain culms in the next row. A second grain culm stock transport device for merging the harvested grain stalks with the first grain culm stock transport device, the transport direction of which is at an acute angle with respect to the transport direction of the first grain culm stock transport device. Further, the grain end side locking and conveying device is arranged in such a manner that its merged grain culm locking and conveying action portion faces substantially in the same direction as the traveling direction of the machine body.

In other words, in a three-row combine harvester where the feed chain side is the uncut side, the two rows of planted grain culms are pulled up and harvested on the side that takes the shortest path to the feed chain, and then moved backwards. At the same time, one row of planted grain culms is raised and harvested on the side that takes the longest route, and the one row of reaped grain culms joins the two reaped grain culms at an acute angle. Therefore, grain culms in one row can be merged extremely smoothly with minimal disturbance of posture, and as mentioned above, by making the reaped grain culms in rows take a long path, it is possible to easily transport them. The rate of posture disturbance along the route has also been reduced, making it possible to eliminate problems in threshing caused by disturbances in the transportation posture of harvested grain culms and posture disturbances due to merging.

In addition, in the 3-row harvester with the above structure, it is
In the case of row mowing type work, the two rows of planted grain culms are introduced between a pair of lifting devices and are pulled up and harvested, and then transported to the first grain culm that takes the shortest route. Since the device transports the device backwards, the posture may be disturbed, and the central divider (not shown, but naturally placed at the front of each hoisting device) should be used to cut two rows. By simply positioning it on the outside of the planted grain culm, it is now possible to easily perform two-row cutting with good workability.

Furthermore, since the tip side of the merged grain culm is conveyed from the confluence point toward the handling port in the same direction as the moving direction of the machine, unreasonable changes in the conveyance route that involve combing are avoided. Therefore, it is possible to effectively suppress grain shedding, and as a whole, 3
By appropriately setting the positional relationship between the base lifting device and the first and second grain culm conveying devices, and by properly arranging the head-side locking and conveying device, the drawbacks of the conventional combine harvester can be overcome without changing the overall structure of the combine. We have now been able to resolve this issue and improve the overall usability.

[Brief explanation of drawings]

The drawing is a plan view showing an embodiment of a three-row harvester according to the present invention. I A, I B, I C... Grain culm pulling device,
4...Threshing device, 7A...First grain culm stock transfer device, 7B...Second grain culm stock transfer device,
11...Feed chain, 17B...
- Tip side locking conveyance device.

Claims (1)

[Scope of utility model registration request] Three grain culm pulling devices, first and second grain culm root conveying devices that transport the harvested grain culms backwards and merge them, and a feed on the outside side of the threshing device that transports the root side of the merged grain culms to the side of the threshing device. A lifting conveyance device for supplying to the chain, and a head side locking and conveying device for locking and conveying the head side of the merged grain culm to the handling port side of the threshing device,
In the three-row mowing combine disposed at the front part of the machine that performs rotational mowing with the feed chain side on the uncut side, the three-row mowing combine
Among the grain culm lifting devices, two on the feed chain side are arranged in a pair, and the remaining one is placed on the opposite side to the feed chain, and the pair of grain culm lifting devices are arranged in pairs. A first grain culm stock source conveying device for transporting the next two rows of harvested grain culms in substantially the same direction as the traveling direction of the machine is arranged behind the machine, and a first grain culm stock source conveying device is arranged behind the remaining grain culm pulling device. , a second grain culm stock transfer device for merging one row of harvested grain stems therefrom into the first grain culm stock transfer device, the conveyance direction of which is the conveyance direction of the first grain culm stock transfer device; Further, the ear-side locking and conveying device is arranged in such a manner that its merging grain locking and conveying action portion is directed essentially in the same direction as the traveling direction of the machine body. This is a 3-row harvester with the following features: