JPH0153005B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a raking device for raking planted stem culms;
A cutter that harvests the base side of the planted stem culm that is being raked in, a conveyor that receives the cut stem culm with the tip side facing toward the rear of the machine and transports it to the rear of the machine, and a conveyor that transports the stem culm to a predetermined location in the left and right direction of the machine. The present invention relates to a combine harvester in which an auger for raking the culms and a locking and conveying device for locking the tip side of the collected stem culms and conveying them to a threshing and sorting section are successively connected to a traveling vehicle body.

Conventionally, when an auger is provided in the above-mentioned combine harvester, the harvested stem culm transported by a conveyor is dropped downward at the lower part of the transport end, and in the dropped state, the auger scrapes the harvested stalks in the left and right directions of the machine. The lower part of the auger in the circumferential direction was positioned lower than the upper part of the conveyance end of the conveyor.

However, as the harvested stem culms being conveyed by the conveyor are changed to a position with the tip side facing downward at the end of the conveyance, the plant base side is floated from the conveyor and the harvested stem culms being conveyed subsequently. This resulted in a situation in which the harvested stem culm was lifted by being hooked onto the tip side, causing disturbance in the posture of the transported harvested stem culm, and with the raking action of the auger, the cutting action was applied to the stem culm more than necessary, resulting in grain shedding. In addition, because the auger is located low, the slope of the locking and conveying device for conveying the harvested stem culms scraped together by the auger to the threshing and sorting section becomes steep. A large locking force is required against the tip of the
There were disadvantages in that grains were easily shed during transportation, and conveyance failures were likely to occur due to slippage.

In view of the above-mentioned points, the present invention enables the transportation of cut stem culms from the conveyor to the threshing sorting section with minimal changes in posture.
Moreover, the purpose is to enable the process to be performed with less shedding.

In order to achieve the above object, the present invention provides the above-mentioned combine harvester with the auger having its circumferential lower part positioned near the top of the conveyance end of the conveyor, and a guide of the locking conveyance device. is provided in an inclined position facing in the tangential direction of the outer periphery of the auger.

The effects of the above configuration are as follows.

That is, the conveyed stem culms transported by the conveyor are scraped up by the auger in order from the tip side without changing their posture in the vertical direction, and the scraped stem culms are scraped up by the auger. The grain is supplied to the locking and conveying device while making good use of the rotational force, and then transported to the threshing and sorting section.

The effects of the above action are shown below.

In other words, there is no vertical change in posture when conveying the cut stem culm from the conveyor to the auger, and it is possible to suppress posture disturbances and to suppress shedding due to the action of the auger. Since it is in an inclined position facing in the tangential direction of the outer circumferential part of the sheet, there is no disturbance in the posture when transferring from the auger to the locking conveyance device, and the rotational force of the auger can be used to ensure good transfer. In addition, by positioning the auger higher than before, the locking and conveying device can be placed in a gently inclined position, which suppresses both shedding and slippage caused by locking and conveying, and allows for threshing and sorting from the reaped stem culm conveyor. It has become possible to transport the grains to the department better by reducing both posture changes and grain shedding.

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

A reaping and transporting section 5 is installed in the front part of a traveling vehicle body which is equipped with a crawler traveling device 1 and a control section 2 and is also equipped with a threshing section 3, and is driven via a hydraulic cylinder 4 so as to be able to swing up and down. The combine harvester is configured to reap from the plant base side and supply the entire reaped stem culm to a threshing and sorting section 3 for threshing and sorting processing.

The reaping and conveying section 5 includes a cutter 6 that cuts the base side of the planted stem culm, a conveyor 7 that conveys the cut stem culm with the tip side leading, and a conveyor 7 that scrapes the planted stem culm toward the cutter 6 side. After reaping, a raking device 8 receives the harvested stems onto the conveyor 7 with the tip side facing backward, an auger 9 that rakes the reaped stem culms conveyed by the conveyor 7 to a predetermined location in the left and right direction of the machine, and the raked reaped harvest. A locking and conveying device 10 is provided that locks the tip side of the stem culm and conveys it to the threshing sorting section 3.

When the auger 9 is provided, the lower part of the outer periphery of the helical body 9a in the circumferential direction is provided close to the upper part of the conveyance end of the conveyor 7, so that the auger 9 does not change its posture in the vertical direction from the conveyor 7. The structure is such that the harvested stem culm is transported by the culm.

The conveying guide 10a of the locking and conveying device 10 for the stalk culm whose tip side is locked is configured to be in an inclined position facing in the tangential direction of the outer circumference of the helical body 9a.

A cylindrical case 12 is connected by bolts to each of the left and right sides of the case 11 in which the locking and conveying device 10 is housed, and both cylindrical cases 12 and 12 are supported through bearings 13. The drive shaft 14 is passed through the case 11 from the cylindrical cases 12, 12, and the respective ends of the cylindrical cases 12, 12 are attached to boss members 15, 15 connected to the body side. It is rotatably attached via 16.

The conveyor 7 is divided into three parts in the left-right direction of the machine, and each pair of drive sprockets 17 of each conveyor 7 corresponds to one drive shaft 1.
At the same time, a pair of tensioning sprockets 19, 19 are provided on the transport start end side so as to be independently displaceable between the divided conveyors, and the chain is wound around both sprockets 17, 17, 19, 19. 20,20 link plate 2
1 and 21, an angular conveyance plate 22 is provided in series.

A holder 24 is provided on the support shaft 23 attached to the pair of tensioning sprockets 19, 19, and the holder 24 is provided on the guide 25 so as to be movable in a predetermined direction of the machine body.A rod 26 is connected to the holder 24, and the rod A compression spring 27 is interposed in the bracket 30, and a pushing member 29 that acts on the spring receiver 28 for the compression spring 27 is attached to the bracket 30.
A stopper bolt 31 for preventing the pushing member 29 from swinging upward is screwed onto a support shaft 32 rotatably attached to the bracket 30. In addition, the head of the stopper bolt 31 is placed at a location where it can be operated from between the adjacent conveyors 7, 7, and a tool such as a box wrench is inserted between the adjacent conveyors 7, 7 to tighten the stopper bolt. 31 is rotated to easily adjust the tension on each conveyor 7.

In the figure, 33 indicates a cover detachably provided to cover the gap between the adjacent conveyors 7, 7.

[Brief explanation of drawings]

The drawings show an embodiment of the combine harvester according to the present invention, FIG. 1 is a partially cutaway side view of the main part, FIG. 2 is a plan view of the main part, and FIG. 3 is a partially cutaway view of the main part of FIG. The enlarged plan view and FIG. 4 are partially cutaway side views of the main parts of FIG. 1. 3... Threshing sorting section, 6... Cutter, 7... Conveyor, 8... Scraping device, 9... Auger, 1
0... Locking conveyance device, 10a... Guide.

Claims (1)

[Claims] 1 A raking device 8 for raking the planted stem culm, a cutter 6 for cutting the base side of the planted stem culm to be raked, a cutter 6 for reaping the plant base side of the planted stem culm to be raked, and a cutter 6 for receiving the cut stem culm with the tip side facing toward the rear of the machine and moving it to the rear of the machine. A conveyor 7 for conveying, an auger 9 for scraping the conveyed stem culm to a predetermined location in the left and right direction of the machine,
This is a combine harvester in which a locking and conveying device 10 that locks the tips of gathered stem culms and conveys them to the threshing sorting section 3 is sequentially connected to a traveling vehicle body, and the auger 9 is attached to a lower portion in the circumferential direction of the combine harvester. is provided near the top of the conveyance end of the conveyor 7, and the guide 10a of the locking conveyance device 10 is provided in an inclined position facing in the tangential direction of the outer circumference of the auger 9. combine harvester.