JP2513138Y2 - Transport structure of the pre-cutting device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention provides a spiral blade for laterally feeding a conveyer grain culm as the drum rotates, on the outer peripheral surface of the drum arranged along the left-right direction of the machine body, and the end of the spiral blade. In succession, the scraping feed claw for scraping the conveyed grain stalk laterally fed by the spiral blade to the rear of the machine body is rotatable integrally with the drum around an axis eccentric from the rotation axis of the drum, and The present invention relates to a conveyance structure of a pre-mowing treatment device, which is provided so as to project radially outward from the outer peripheral surface of the cutting device.

[0002]

2. Description of the Related Art In the transport structure of the above-mentioned cutting pretreatment device, conventionally, as shown in, for example, Japanese Utility Model Laid-Open No. 63-112435, the rotary shaft core of the scraping feed claw is more than the rotary shaft core of the drum. In addition to being located on the front side of the machine, each scraping pawl is made of a linear rod, and the tip of each scraping pawl is arranged so as to project slightly outward from the outer peripheral end locus of the spiral blade in the side view. It was there.

[0003]

The above-mentioned structure is configured such that the cut culms are gathered in the center and conveyed and fed toward the threshing device while setting a sufficiently large cutting width. In the above conventional structure, a belt conveyor is interposed between the mowing device and the rotary drum to prevent the mowing grain culms from staying between them, so that the amount of protrusion of each scraping feed claw is reduced. Even if it was set to, it was possible to prevent the harvested grain culm from staying.

However, since the belt conveyor provided at the rear part of the reaper as described above is provided over substantially the entire width of the reaper, it has been a major factor of cost increase. Therefore, for the purpose of cost reduction, there has been proposed a configuration in which the belt conveyor is eliminated and the rotary drum is arranged immediately behind the mowing device. However, according to such an improved structure, a dead space is formed between the scraping feed claw that makes a rotary motion and the reaping device, and the gathered grain culms are retained in this portion and smoothly scraped and conveyed. In order to reduce this dead space, the amount of eccentricity between the drum and the scraping feed claw is increased so that the scraping action side of the scraping feed claw, that is, the protrusion of the drum on the front side of the machine body is projected. It is necessary to increase the amount.

However, when the scraping-feeding pawl is made to project largely in this way, in the above-mentioned conventional structure, the scraping-feeding pawl is a linear rod member, and therefore when scraping backward, the scraping-feeding pawl and the drum outer peripheral surface are scraped. The angle with the feed claw becomes smaller,
There was a drawback that the grain culms were caught and continuously rotated, wound around the drum, and stayed, eventually obstructing the transportation.

An object of the present invention is to eliminate the above-mentioned problems.

[0007]

According to the characteristic construction of the present invention, in the conveying structure of the pre-mowing treatment device described at the beginning, the tip end side of the retractable scraping feed claw is set in a direction opposite to the rotating direction of the drum. The point is that it is bent toward.

[0008]

[Function] Since the tip end of the scraping feed claw is bent in the direction opposite to the rotating direction of the drum, the angle between the drum outer peripheral surface and the scraping feed claw increases when the grain stem is fed to the rear side. The transport grain culms that are caught by the scraping feed claws and are about to rotate are easily separated from the scraping feed claws as the scraping feed claws move in and out of the drum.

[0009]

Therefore, according to the present invention, the eccentric distance between the rotary shaft of the scraping claw and the rotary shaft of the drum is increased by a very simple structural improvement in order to prevent the accumulation of grain culms.
Even when the amount of protrusion is large, it is possible to effectively prevent winding around the outer peripheral portion of the drum due to continuous rotation.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 4 shows an all culm input type combine with a cutting pretreatment section according to the present invention. In this combine, a threshing device 3 is mounted on a traveling machine body 2 including a crawler traveling device 1, and a boarding operation unit 4 is provided on a front lateral side of the threshing device 3.
Is arranged, and the pre-mowing processing unit 5 is connected to the front of the machine body so as to be movable up and down. The threshing device 3 includes a handling cylinder 6 that rotates and handles around an axis along the longitudinal direction of the machine body and a sorting unit 7 that sorts the handled material into grains and straw chips below the handling cylinder 6. In addition, the sorted grains are collected in a grain tank 8 arranged on the side of the threshing device 3.

The cutting pretreatment unit 5 includes a rotary reel 9 for scraping the tip end side of the planted grain culm to the rear side of the machine body, a clipper type cutting device 10 for cutting the root side of the planted grain culm, and the harvested grain. It consists of an auger 11 that collects culms to the center side and sends them backward, a conveyor 12 that scrapes and conveys the culms sent from the auger 11 toward the entrance of the threshing device 3. As shown in FIGS. 2 and 3, a ladder 13 for maintenance work is attached to one lateral side of the front surface of the threshing device 3, and a handle 14 formed on the lateral outside of the ladder 13 has a
A weeding rod 15 pivotally supported at the side end of the pre-mowing treatment unit 5 is slidably inserted and supported, and this weeding rod 15 can also be used as a step when riding on the ladder 13.

As shown in FIGS. 1 and 2, the auger 11 is provided with a rotary drum 16 which is driven and rotated around the horizontal axis X in the entire cutting width, and the drum is provided on the outer peripheral surface of the rotary drum 16. A spiral blade 17 for laterally feeding the conveyed grain culm as the rotation of 16 is provided, and subsequently to the end of the spiral blade 17, the conveyed grain culm laterally fed by the spiral blade 17 is scraped to the rear of the machine. The claw 18 is integrally rotatable with the drum 16 around an axis Y that is eccentric from the rotation axis X of the drum 16 toward the front side of the machine body, and extends outward from the outer peripheral surface of the drum 16 in the radial direction. It is provided so as to project in a retractable manner. The auger 11 is provided immediately behind the reaping device 10, and the scraping feed claw 18 is provided in order to prevent accumulation of grain culms after cutting at the position where the scraping feed claw 18 is arranged.
The tip end locus of the blade is largely projected from the outer peripheral edge of the spiral blade 17, and the tip end locus of the scraping tine 9a of the rotary reel 9 is set to be superposed on the tip end rotation locus of the scraping claw 18 in a side view. It is configured so that the dead space of the culm transportation is reduced. Further, the bottom plate 19 is formed with a groove 20 into which the scraping pawl 18 can freely enter, so that the protrusion amount of the scraping pawl 18 can be increased and the spiral blade 1
The gap between the outer peripheral edge of 7 and the conveying surface of the bottom plate 19 is reduced,
It is configured to smoothly perform the lateral feed operation.

The tip end side of the scraping feed claw 18 is bent in the direction opposite to the rotation direction of the drum 16, and the claw penetrating sliding contact portion 21 of the drum 16 is formed in an outwardly expanding shape and is relatively formed. It is designed to allow a wide angle shift.

In this way, even when the eccentric distance between the rotary shaft cores X and Y is increased to reduce the dead space, the scraping claw 18 is caught and tries to rotate continuously. By bending the scraping feed claw 18, the grain culm can easily escape to the outside, and it becomes possible to prevent the winding and retention.

In the claims of the utility model registration, reference numerals are written to facilitate comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of an auger arrangement section.

FIG. 2 is a cutaway plan view of an auger arrangement portion.

FIG. 3 is a front view of a weeding rod supporting portion.

FIG. 4 is an overall side view of the combine.

[Explanation of symbols]

 16 drum 17 spiral blade 18 scraping claw

Claims (1)

(57) [Scope of utility model registration request] 1. A spiral blade (17) is provided on the outer peripheral surface of a drum (16) arranged along the left-right direction of the machine body to laterally feed a conveyed grain culm as the drum (16) rotates.
Subsequent to the end of the spiral blade (17), a scraping feed claw (18) for scraping the conveyed grain stalk laterally fed by the spiral blade (17) to the rear of the machine is provided from the rotation axis of the drum (16). A pre-mowing treatment device provided so as to rotate integrally with a drum (16) around an eccentric shaft center and to project outwardly and radially outwardly from the outer peripheral surface of the drum (16). A transport structure of a pre-mowing treatment device, wherein a tip side of the retractable scraping claw (18) is bent in a direction opposite to a rotation direction of the drum (16).