JPH1146552A - Reaping section of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the vibration and noise of the reaping section. SOLUTION: A cutting device 7 for cutting the root portions of plural rows of raised standing grain straws and a pair of left and right rotary packers 8L, 8R for raking and gathering the standing grain straws and the reaped grain straws into the carriage-starting portion of a backward carriage device are disposed in the reaping section of a combine harvester. The cutting device 7 is formed by arranging plural disk type rotary cutters 11 for being rotated to cut the root portions of standing grain straws on both the left and right sides of the joined portion of the rotary packers 8L, 8R in a state that the plural adjacent rotary cutters 11 are vertically superposed. The driven rotation direction of the rotary cutter 11 placed on the left side of the joined portion is set to be the same as the rotation direction of the rotary packer 8L placed on the left side of the joined portion. The rotation direction of the rotary cutter 11 placed on the right side of the joined portion is also set to be the same as the rotation direction of the rotary packer 8R placed on the right side of the joined portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device for cutting the roots of a plurality of planted grain culms that have been caused, and a planting culm and a harvested grain culm at a transport start end of a conveying device for moving backward. The present invention relates to a combine harvester provided with a pair of left and right rotary packers for scraping and joining.

[0002]

2. Description of the Related Art Conventionally, a cutting device for cutting a root of a planted grain culm by reciprocatingly sliding a cutting blade with respect to a fixed blade has been provided.

[0003]

However, according to the above-mentioned conventional technique, since the cutting blade is cut by reciprocating sliding with respect to the fixed blade, a large vibration and noise are generated.

An object of the present invention is to reduce vibration and noise.

[0005]

The features, functions and effects of the first aspect of the present invention are as follows.

[Features] A cutting device for cutting the roots of a plurality of raised planted grain culms, and right and left for bringing the planted grain culm and the harvested grain culm into the conveying start end of the conveying device backward and joining them. A harvester of a combine provided with a pair of rotating packers, wherein the cutting device is configured to rotate and cut the root of the planted grain culm on each of the left and right sides of a junction by the rotating packers. A plurality of disk-shaped rotary cutters are arranged side by side in such a manner that a plurality of adjacent rotary cutters vertically overlap each other, and the driving rotation direction of the rotary cutter located on the left side of the junction is located on the left side of the junction. The rotation direction of the rotary packer is set to be the same as that of the rotary packer, and the rotation direction of the rotary cutter located on the right side of the junction is set to be the same as the rotation direction of the rotary packer located on the right side of the junction.

According to the first aspect of the present invention, a cutting device is constituted by arranging a plurality of disk-shaped rotary cutters on the left and right sides of the merging portion in the left-right direction, and by rotating the rotary cutters. Since it cuts, the vibration and noise generated by each rotating cutter are small.

In addition, since the adjacent ones are arranged so as to be overlapped vertically, it is possible to reliably cut off the roots of the plurality of raised planted grain culms.

In addition, the rotation directions of the rotary cutter and the rotary packer located on the left side of the junction are set to be the same, and the rotation directions of the rotary cutter and the rotary packer located on the right side of the junction are made the same. The grain culm can be cut by the rotary cutter because the setting is made so that the grain culm feed direction accompanying the cutting by the rotary cutter and the grain culm feed direction along with the rotation of the rotary grain cutter on the rotary cutter are rotated. Not only can the culm be sent to the junction.

[Effects] Therefore, according to the first aspect of the present invention, the grain culm can be cut reliably with reduced vibration and noise, and the ability to transport the grain culm to the confluence can be improved.

According to the second aspect of the present invention, the features, functions,
The effects are as follows.

[Features] In the features of the first invention,
The point is that adjacent rotary cutters are vertically overlapped with the rotary cutter on the side farther from the confluence part facing upward.

[Operation] In the second aspect of the present invention, when the rotating cutters adjacent to each other on the left and right are vertically overlapped, the rotating cutter on the side farther from the merging portion is disposed on the upper side, so that the rotating cutter is placed on the rotating cutter. In the transport of the cut cereal stem to the confluence part side due to the rotation of the rotary cutter, the grain stalk conveyed is prevented from being caught by the rotary cutter on the lower side of the transport, and the lower side of the transport from the rotary cutter on the upper side of the transport is rotated. The movement of the cereal stem onto the cutter can be performed smoothly.

[Effects] Therefore, according to the second aspect of the present invention, the grain stalks can be smoothly transported to the junction by the rotary cutter.

According to the third aspect of the present invention, the features, functions,
The effects are as follows.

[Features] In the features of the first and second aspects of the present invention, the rotary cutter is set to rotate at a higher speed as the rotary cutter is farther from the junction.

[Operation] In the combined conveyance by the rotary packer, the grain culm located farther from the confluence has a greater degree of falling toward the confluence.

Focusing on the above points, according to the third aspect of the present invention, the rotating cutter on the far side from the confluent portion is rotated at a higher speed, and the cereal stem stock is conveyed to the converging portion side by the far-side rotating cutter. By increasing the speed, a force in the upright direction is applied to the cereal stem, so that the fall of the cereal stem toward the confluent portion can be corrected.

[Effect] Therefore, according to the third aspect of the present invention, regardless of the position of the grain stalks in the cutting width direction, the grain stalks are aligned in substantially the same standing posture, so that the stalks are merged in a state where the ends of the stalks are aligned. And the ability to adjust the handling depth in the transfer device can be improved.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a harvester of a combine includes a crawler-type traveling device 1 and a threshing device 2.
A cutting frame 4 is connected to the front part of the body frame 3 of the self-propelled body so as to be able to move up and down freely by swinging around the axis P facing left and right. A plurality of weeding tools 5 for weeding, a pair of left and right elevating devices 6 for causing two weeded planted culms,
A cutting device 7 for cutting the root of the planted grain culm of the strip, and the planted grain culm and the harvested grain culm are rotated at around the vertical axes PL, PR to be scraped into one predetermined location in the cutting width direction and merged. A pair of left and right rotating packers 8L and 8R to be rotated, and a pair of right and left locking and conveying belts 9L and 9R for rotating and bringing the planted grain culm and the harvested grain culm into the above-mentioned predetermined location and joining them.
And a transporting device 10 for transporting the raked and mixed cereal stems to the threshing device 2.

As shown in FIG. 3 and FIG. 4, the cutting device 7 rotates around the vertical axis Y around the right and left sides of the confluence of the rotating packers 8L and 8R, respectively. A plurality of disk-shaped rotary cutters 11 for cutting a stock are arranged side by side in a left-right direction such that a plurality of adjacent rotary cutters are vertically overlapped with each other. Is set in the same direction as the rotation direction of the rotary packer 8L located on the left side of the junction, that is, in the clockwise direction in plan view, while the drive rotation direction of the rotary cutter 11 located on the right side of the junction is The rotation direction is set in the same direction as the rotation direction of the rotation packer 8R located on the right side of the junction, that is, in the counterclockwise direction in plan view.

The rotary cutter 11 is attached via a left-right frame 4B to a front end of a front-rear frame 4A of the mowing frame 4 which is mounted on the body frame 3 so as to be vertically swingable. 5
Is supported by a cutter frame 4D that supports the rear end of the weeding rod 4C in the front-rear position, which supports the rear end of the weeding rod 4C, in a state where the rotary cutter 11 farther from the confluence part is on the upper side and the adjacent ones are vertically overlapped. I have.

The driving means of the rotary cutter 11 includes a pair of left and right transmission chains 13L and 13R driven via a group of transmission shafts 12 passing through the front-rear frame 3A and the left-right frame 3B. A passive sprocket wheel 14 that meshes with the corresponding transmission chains 13L, 13R and rotates with the rotation of the transmission chains 13L, 13R.
The passive sprocket wheel 14 has a smaller diameter as it is farther from the merging portion. That is, the rotation cutter 11 is set to rotate at a higher speed as it is farther from the junction. Reference numeral 15 denotes a tighter that loosens the right transmission chain 13R.

[Alternative Embodiment] The driving means of the rotary cutter 11 can be changed as appropriate.

The number of the rotating cutters 11 arranged on each of the right and left sides of the junction can be appropriately changed.

In the above embodiment, the rotary cutter 11 disposed on the left side of the junction and the rotary cutter 11 disposed on the right side have the same diameter, but they may be configured to have different diameters. . Further, the rotary cutters 11 arranged on the same side may have different diameters from each other.

[Brief description of the drawings]

FIG. 1 is a side view of the front of the combine.

FIG. 2 is a plan view of a reaper.

FIG. 3 is a plan view showing the mounting and driving structure of the rotary cutter.

FIG. 4 is a cutaway front view of the cutting device.

[Explanation of symbols]

 7 Cutting device 8L, 8R Rotary packer 10 Transport device 11 Rotary cutter

Claims (3)

[Claims] 1. A cutting device for cutting the roots of a plurality of raised planted grain culms, and a pair of left and right for scraping the planted grain culm and the harvested grain culm to a transport start end portion of a backward transport device. The harvester of a combine provided with a rotating packer, wherein the cutting device is configured to rotate and cut the root of the planted cereal stem on each of the left and right sides of the junction by the rotating packer. A plurality of disk-shaped rotary cutters are arranged side by side in the left-right direction so that adjacent ones are vertically overlapped, and the rotation direction of the rotary cutter located on the left side of the junction is rotated to the left of the junction. A combine harvester in which the direction of rotation of the rotary cutter located on the right side of the junction is set to be the same as the direction of rotation of the rotary packer located on the right side of the junction. 2. The combine harvester according to claim 1, wherein adjacent rotary cutters are vertically overlapped with each other with the rotary cutter on the side farther from the confluence portion facing upward. 3. The combine harvester according to claim 1, wherein the rotating cutter located farther from the junction is rotated at a higher speed.