JPH0253415A - Reaping unit in combine - Google Patents

Abstract

PURPOSE:To provide the title unit equipped with a grain stem-raking reel above so designed that the rolling speed is made higher than the rotational speed of the raking reel, thereby stabilizing grain stem-raking performance. CONSTITUTION:In a combine work, the tilting to left or right of a reaping unit 1 is detected by a horizontal sensor, a rolling cylinder is stretched or contracted to put the reaping unit 1 to rolling control around the center of rolling, and when a horizontality is detected by said sensor, the reaping unit stops operation. During the combine work, a raking tine 15 hooks front grain stems and rakes them into a rear pretreatment frame 13, and the grain stems thus raked are cut by a cutting edge device 11. The rolling speed of the reaping unit is set to be higher than the rotational speed of the raking reel to put the reaping unit 1 to rolling in a left-and-right balanced state against the running soil surface faster than the actuation of the raking tine.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a reaping device for a combine harvester, in which a grain culm raking reel is provided above the reaping device, and the reaping device is provided so as to be able to roll freely relative to the main machine. .

PRIOR ART AND PROBLEMS TO BE SOLVED BY THE INVENTION A raking rule having raking tines that engages the front grain culm and rakes it rearward while rotating above the reaping device is provided. The combine harvester is designed to be able to roll freely against the main machine side, and in wet fields where the soil surface is soft, the vehicle body tends to tilt left and right.In order to reduce the influence of this tilt, the to keep the reaping device in a horizontal position by rolling it in the direction opposite to the inclined side.
As the raking reel rotates, the raking tines engage the front grain culm and rak it rearward, and this grain culm is harvested by the reaping device.

In this reaping work, if the rolling speed of the reaping device is slow compared to the rotational speed of the raking reel, it will not be possible to control the reaping device to a horizontal position by rolling in time, so the raking reel will not be able to smoothly rake the grain culm. If this is not done, the scraping performance will become unstable.

Therefore, an object of the present invention is to stabilize the raking performance of grain culms by making the rolling speed of the reaping device faster than the rotational speed of the raking reel.

Means for Solving the Problems This invention provides a reaping device (1) that can be freely controlled in rolling with respect to a grain culm conveying device (3) on the side of a vehicle body (2), and a reaping device (1) that can move the grain culm above the grain culm transport device (3). The structure of the reaping device for a combine harvester is characterized in that the rolling speed of the reaping device W (1) is made faster than the rotational speed of the raking reel (4).

Effect of the Invention While traveling on the vehicle body (2), the grain culm in front is raked rearward by the rotation of the grain culm raking reel (4), and this raked grain culm is harvested by the reaping device (1), The grain is transported by the grain transport device (3) and supplied to the threshing device.

If the vehicle body (2) and the reaping device (1) tilt significantly to the left or right because the soil surface on which the vehicle body (2) runs is soft, etc., the reaping device (II) will tilt toward the vehicle body (2) side. The grain conveying device (3) is controlled to roll toward the side opposite to the inclined side of the vehicle body (2), so that regardless of whether the vehicle body (2) is traveling in an inclined position, the reaping device (II) is Reaping work is performed while maintaining the left and right sides parallel to the surface.

In this rolling control, when the vehicle body (2) and the reaping device (1) are inclined to the left or right side, the rolling action is quickly performed, and this rolling speed is adjusted to the grain culm raking reel (4). ), the reaping device (1) is maintained horizontally parallel to the running soil surface.

Effects of the Invention As described above, since the rolling speed when the reaping device is tilted and controlled to be in a horizontal state is made faster than the rotational speed of the grain culm raking rule (4), the grain culm in front is not engaged. The reaping device (1) is rolled horizontally parallel to the running soil surface faster than the operation of the grain culm raking reel (4), which rakes the grain culm backwards. Scraping is performed appropriately and stabilization of scraping performance can be achieved.

Embodiment In addition, when turning, a threshing device (8) equipped with a handling barrel (6) and a sorting device (7) is mounted on the car body (2) having a left and right traveling device (5), and A reaping device W(1) is provided.

Further, a grain tank is provided on the side of the threshing device (8) on the vehicle body (2), and a cabin (9) in which the driver's seat is installed is installed in the front side of the grain tank.
has been established. (IQ is the grain ejection auger.

The reaping device [1] includes a cutting blade device (IQ and an auger (pre-processing frame f+3 having one shaft)) which scrapes and collects grain culms while reaping them, and a cutting blade device (pre-processing frame f+3 with an IQ and an auger (1 shaft)), and a reaping device in the pre-processing frame f+3 located at the rear of this device. A grain culm conveying device (3) equipped with an elevator +141 for conveying the harvested grain culm to the threshing device (8) is installed in series. A raking tine (151) that engages and rakes grain culms while rotating around an axis
A grain culm scraping reel (4), which is disposed around the rotating circumference, is supported by a support arm (10) that protrudes forward from the pretreatment frame (1).

A rear wall frame OB that protrudes to the rear side across the upper side and both left and right sides is provided on the pretreatment frame (1 A communication port (191) is opened at (m).The communication port (191) of the grain culm conveying device (3) is connected to the communication port (Igl).

The grain culm conveyor! (3) The upper side and both left and right sides of the end.

and the pretreatment frame f13) rear wall frame (on the inside of the old one,
A rolling support portion I21) that supports the communication port 1'312[) in a rolling manner is partially disposed around the center (P) of the communication port 1'312[). The reaping device f1) is a grain culm conveying device (
3), it is configured to be able to roll freely around the center (P) of the communication port (19121).

A rolling cylinder (2i5) for controlling rolling is rotatably connected to one of the left and right sides of the rear wall frame (1) 3, and the base is connected externally from the lower end of the grain culm conveying device (3). In addition, a horizontal sensor 241 for detecting the inclination of the reaping device i1 (1) in the left-right direction is provided inside the upper side.

The elevator (+41) of the grain culm transport device (3) is configured to receive power from a reaping input shaft 129 driven from the upper motor side. A shaft (n) is provided on the lower side wall of this conveying device W (3), and the grain culm raking reel (4) is transmitted from this shaft (5) by a chino I2e provided along the outer wall
is driven by a belt, and an auger (1) and a cutting blade [
(II) are respectively transmitted.

The hydraulic circuit of the rolling cylinder δ is provided with a rolling valve that switches the rolling direction based on the inclination detection result of the horizontal sensor 24). The rolling speed when controlling the inclination of the reaping device (1) to a horizontal state by hydraulic operation of the rolling cylinder (2) is equal to the moving speed of the raking tine (!9) caused by the rotation of the grain culm raking reel (4). The pressure receiving area, supply pressure oil amount, etc. on the supply side of the rolling cylinder aX5 are set so as to increase the speed.

The reaping device (1) and the threshing device (8) are driven by the prime mover.
) is transmitted and the traveling device (5) is transmitted, and the vehicle body (2) travels to perform combine harvesting work.

In this combine work, when the horizontal sensor I24 detects the left and right inclination of the reaping device (1), the rolling cylinder (2a) is expanded and contracted to control the reaping device (1) to roll around the rolling center (P), and the horizontal sensor I24 extends and contracts the reaping device (1). 4
It stops when it detects horizontality.

During the combine operation, while the grain culm raking reel (4) rotates, one of these raking tines engages the front grain culm and rakes it into the rear pretreatment frame (1'5). The raked grain culms are harvested with a cutting blade device 0+l.

Since the rolling speed of the reaping device (1) is made faster than the rotational speed of the grain culm raking reel (4), the raking tine 1
) 9, the reaping device (1) is rolled horizontally and parallel to the running soil surface, thereby stabilizing the grain culm raking performance.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an overall side view of the combine harvester, Fig. 2 is a rear view of the reaping device, and Fig. 3 is a rear view of the reaping device.
The figure is a plan view of a part of it. In the figure, reference numeral (1) indicates a reaping device, (2) a vehicle body, (3) a grain culm conveying position, and (4) a grain culm raking reel.

Claims (1)

[Claims] The reaping device (1) is provided to be able to freely control rolling relative to the grain culm conveying device (3) on the vehicle body (2) side, and the rotational speed of the grain culm raking reel (4) above the reaping device (1) is controlled. A reaping device for a combine harvester, characterized in that the rolling speed of the reaping device (1) is increased.