JPS6117446B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a culm discharge device that improves the method for discharging the culms of a cane harvesting machine that harvests long culms such as cane as long culms and releases them into the field. .

Conventionally, this type of sweet potato harvesting machine pushes down the stem culms planted in the field, harvests them from the roots, and transports the harvested stem culms backwards along the direction of movement of the machine, with the roots first. The leaves are removed, and the defoliated stem culm is moved from the rear end of the aircraft to the rear or side of the aircraft.
It is designed to be emitted almost parallel to the direction of travel of the aircraft. The stem culms that are sequentially released from the aircraft are
Since the stems are overlapped and stacked together with their ends not aligned, it is troublesome to gather and bundle the stems to align them lengthwise when carrying them out of the field, which requires a lot of effort and time. I had a problem.

The present invention was conceived in view of the above circumstances, and the present invention is made by contacting the tip of the stem culm, which has been moved along the direction of movement of the harvesting machine, at the terminal end of the harvesting machine, and moving it in the left-right direction of the harvesting machine. The reaped stalk culm is disposed of in a direction substantially perpendicular to the machine body, and is discharged into the field from a discharge port that can be discharged.
The ends of the stem culms can be discharged into the field perpendicularly to the reaping ridge without overlapping, with the ends almost aligned, making it easier to collect and bundle the stems when carrying them out of the field, and reducing the labor involved in carrying them out. The cane harvester's stem cutting time can be reduced, and the left and right discharge direction can be freely selected, allowing the harvester to reciprocate, thereby reducing damage to the discharged stem culms without the harvester trampling on them. A culm discharge device is provided.

The invention will now be described with reference to illustrated embodiments.

In FIG. 1, reference numeral 1 denotes a running vehicle body, which has a pair of left and right front wheels 2 and a rear wheel 3. An engine 4 is mounted on the front part of the vehicle body, and the front and rear wheels 2 and 3 are operated at the same time or at the same time. 3, and is equipped with a hydraulic system 5 at the rear. A pair of left and right crop dividers 6 are mounted at the forefront of the vehicle body 1 in a rearwardly inclined manner. The crop divider 6 is adapted to be rotated in one direction by a hydraulic motor 7 provided at its upper end, and is provided with a shoe 8 at a rotation support portion at its lower end. A push bar 9 that pushes forward the cane stalks (culms) raised by the shoe 8 and the crop divider 6 is horizontally supported by the vehicle body 1 at approximately the middle position on the front side of the left and right crop dividers 6. . The crop divider 6 and shoe 8 can be adjusted up and down with respect to the traveling vehicle body 1 using a hydraulic cylinder 10, and the inclination angle of the crop divider 6 and shoe 8 can be adjusted using another hydraulic cylinder (not shown). It's summery.

Between the front wheels 2, 2 and the rear wheels 3, 3 on the lower side of the traveling vehicle body 1, the stalk culm of the sweet potato remains long and grows in height as it goes backwards during work. A path is formed that can be passed through. This passage includes a roll 11 that feeds the stem culm pushed down by the pusher bar 9 backward, a base cutter 12 that cuts the root of the stem culm, and scrapes the cut stem culm backward with the root of the cut stem in front. In order from 12 to the rear, a pair of upper and lower retraction rolls 13, a single feed roll 14, a pair of upper and lower supply rolls 15, a pair of upper and lower chain type defoliation rolls 16,
A pair of upper and lower drawer rolls 17 are provided. A culm discharge device 18, which is shown in detail in FIGS. 2 and 3, is provided at the rear end of the vehicle body 1 in succession to the pull-out roll 17.

The stem culm discharge device 18 divides the stem culm passage into a left passage 20 and a right passage 21, which branch from the straight passage 19 to the left and right, forming discharge ports 22 and 23. At the end of the straight passage 19, three deflection rolls 25 are installed in a straight line on a long and narrow horizontal chain case 24.
are vertically supported and arranged in parallel so as to rotate in a fixed direction, and the rear end of the chain case 24 is pivotably supported in the widthwise center of the straight path 19 so as to be rotatable in the left-right direction. A free end is formed on the distal end side, and can be displaced toward the left passage 20 or the right passage 21, and this rotation operation is performed by a hydraulic cylinder 26. Further, a fan-shaped upper guide plate 27 is provided between the chain case 24 and the direction change roll 25, and can rotate left and right together with the chain case 24 and the direction change roll 25.

On the other hand, a pair of upper and lower discharge rolls 28, a delivery roll 29, and a discharge auxiliary plate 30 are provided in the left and right passages 20, 21, respectively. The chain case 24
A hydraulic motor 31 is mounted on the pivot part of the chain case 24, and drives a rotating shaft that also serves as the pivot part of the chain case 24 so as to be able to rotate in forward and reverse directions.As shown in FIG. The rotary power is transmitted to a gearbox 32 provided below by penetrating and fixing one of the gearboxes. In the chain case 24, other two deflection rolls 25, 25 are connected via a chain transmission system.
Transmit power so that they rotate in the same direction,
Power is transmitted from the gearbox 32 to the discharge roll 28 and delivery roll 29 via a bevel gear and a shaft via a chain transmission system. Note that the upper part of the discharge roll 28 is of a floating type.

In the stem culm discharge device having such a configuration, the harvesting machine is introduced into a field where sweet potatoes are cultivated in rows,
When the traveling vehicle body 1 is driven by driving each part, the stem culms planted in the field are first divided at the base by the shoe 8, and then introduced into the vehicle while being divided upward by the crop divider 6. , the pusher bar 9 is used to push it forward, and the feed roll 11 is used to feed it backwards, and at the same time, the base cutter 12 is used to cut off the roots. The harvested stem culm is raked in with the root at the top and sent backwards to be gripped by a pull-in roll 13, followed by a feed roll 14 and a supply roll 1.
At step 5, the leaves are fed to a defoliating roll 16 for defoliating. The defoliated stem culm is sent to a stem culm discharge device 18 via a pull-out roll 17.

In the stem culm discharging device 18, the direction changing rolls 25 are switched to the direction in which the stem culms are to be discharged.
5 is rotated in the feeding direction, and the tip of the stem culm changes its direction from the straight path 19 to one of the left and right paths 20 and 21 by colliding with the direction changing roll 25, and is sent to the discharge roll 28. It is gripped and biased, and is discharged into the field via the delivery roll 29 and the discharge auxiliary plate 30. The stem culms released into the field are
They are arranged in parallel with their leading and trailing ends almost aligned in an attitude that is almost perpendicular to the direction of movement of the aircraft. The direction of discharge of the stem culms can be changed simply by rotating the chain case 24 around its pivot point by expanding and contracting the hydraulic cylinder 26, and by reversing the direction of rotation of the hydraulic motor 31. can be easily done.
In addition, when the stem culms discharged to the field are carried out from the field, since the stem culms are discharged in an orderly manner in a direction substantially perpendicular to the reaping ridge, collection, gathering, and bundling can be carried out easily and efficiently. Furthermore, the stem culms can be freely discharged into the field that has already been harvested.
The harvester does not step on the discharged stem culms,
Do not damage the stem culm. In addition, the stem culm is rotated by the direction changing roll 25.
When changing direction, the culm collides with the rotating rolls and is struck, removing dead leaves, dirt, etc. attached to the culm.

As explained above, according to the stem culm discharging device of the cane harvester of the present invention, the stem culm that has been harvested and is sent back inside the machine body as a long stem along the running direction of the machine collides with the stem culm, causing the stem culm to move left and right. The machine changes its direction, and an ejection port is provided on the side of the change of direction, so that it is discharged into the field in a position that is almost perpendicular to the direction of travel of the machine, so that the stem culms discharged into the field are almost in line with the cut ridges. The stems are lined up at right angles, making it easier to collect and tie the stems, reducing work time.Also, since the discharge direction can be easily switched, the harvester can reciprocate, allowing the harvester to cut the discharged stems. Since the harvester does not step on the culm, there is less loss, and the change of direction of the stem culm is done smoothly even though it is a long culm, so there is less damage such as breakage, and it is ensured and smooth. Evacuation work can be performed without clogging.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the entire harvesting machine of the present invention, FIG. 2 is a plan view of the stem and culm discharge device, FIG. 3 is a perspective view thereof, and FIG. 4 is a system diagram of the transmission system. 1... Traveling vehicle body, 18... Stem culm discharge device, 19
...straight passage, 20...left passage, 21...right passage, 22, 23...discharge port, 24...chain case, 25...direction change roll, 26...hydraulic cylinder for switching discharge direction, 31... …Hydraulic motor.

Claims (1)

[Claims] 1 Cut off the stem culms planted in the field from the base,
In a sweet potato harvester that transports the cut stem culms as long stems backward along the direction of movement of the machine body and releases them into the field from the rear end of the machine, the machine moves to the rear end of the machine body. Provided with a direction changing mechanism that contacts the tip of the stem culm, changes its direction of movement from side to side, and selects the direction of movement to either left or right;
A stalk culm discharge device for a sugarcane harvester, characterized in that a discharge port is provided at the rear stage of this deflection mechanism, which can discharge the diverted stalk culms in the left-right direction of the machine body at an angle substantially perpendicular to the machine body.