JPS5915B2 - combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention includes a lifting device that acts on a planted stem culm during reaping, a device that detects the reaped length of the stem culm, and a device that lifts and transports the reaped stem culm immediately after reaping. Regarding combine harvesters.

For example, when changing and adjusting the handling depth of stem culms, it is necessary to detect the cutting length of the stem culms as early as possible, and for this purpose, conventionally, a cutting length detection device is installed in the pulling device. However, when the tip of the stem culm reaches the detection device, there is a change in the position of the plant base, and since the stem culm is lifted and transported after reaping, the longer the plant head is in front, the shorter the detection length will be. The length tends to be thick compared to the actual length, which has the disadvantage that precise control cannot be performed.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to reliably reduce the error between the detected length and the actual length, thereby enabling accurate control.

In the combine harvester described above, the present invention provides an auxiliary pulling device in front of the pulling device that acts to pull up the planted stem culm to near the tip side end before reaping, and
It is characterized in that the detection by the cutting length detection device is performed immediately before the end of lifting by the auxiliary lifting device.

In other words, before reaping, the auxiliary lifting device detects the specific position of the culm where the culm has extended its entire length to the tip, making it possible to accurately measure the length of the reaped culm at an extremely early stage. As a result, it has become possible to perform, for example, handling depth control with greater precision.

Next, embodiments of the present invention will be described based on illustrative drawings.

A frame body 2 that can freely swing up and down around a horizontal axis is extended forward from a machine body equipped with a crawler traveling device 1, and a shell culm lifting device 3, a shell culm reaping device 4, and a shell culm reaping device 4 are installed at the rear of the machine immediately after reaping the cut shell culm. A device 5 for lifting and conveying the feed chain 6 is provided on the frame body 2, so that the mowing height can be adjusted by swinging the frame body 2, and the starting end of the feed chain 6 is made to face the terminal end of the conveying device 5. A threshing device I and a waste straw processing device 8 for shredding and discharging the threshed waste straw are installed, and as the machine runs, it raises the planted husks, reaps, threshes the harvested husks, and removes the threshed waste straw. This is a combine harvester that is capable of shredding.

The hoisting device 3 is composed of a main hoisting device 3a and an auxiliary hoisting device 3b, and when the main hoisting device 3a is installed, its starting end is in front of the reaping device 4, and its ending end is in front of the reaping device. 4 is in an inclined state with the main end positioned above and rearward, and the main end is configured to act on the panicle of the culm during reaping, and the auxiliary pulling device 3b is disposed. It is located in front of the pulling device 3a, and is configured so that the action end portion is able to pull up the tip of the culm before reaping.

Two upper and lower sensors 9a, 9a are made to protrude into the lifting path of the auxiliary lifting device 3b, and both sensors 9a, 9
The culm reaping length detector device 9 is configured to determine that the reaping length is at the desired dimension when the tip passes through the space a, and the culm reaping length detector device 9 is configured to determine that the reaping length is at the desired dimension when the tip passes through the space a. The system is configured to detect the position of the tip of the planted culm, which has been stretched over its entire length to the tip by the auxiliary pulling device 3b.

The vertical conveyance chain 5a of the conveyance device 5 can be vertically swung and fixed around the horizontal axis, and the handling depth can be changed and adjusted by swinging the chain 5a with the cylinder 10 based on the detection result of the detection device 9. It is configured to do the following.

Incidentally, the detection result by the cutting length detection device 9 may be displayed or an alarm may be issued to artificially perform necessary control such as handling depth control.

[Brief explanation of drawings]

The drawings illustrate embodiments of the combine harvester according to the invention,
FIG. 1 is an overall side view, FIG. 2 is a side view showing the main parts and their operating states, and FIG. 3 is a plan view of the main parts. 3...Lifting device, 3b...Auxiliary lifting device, 5...Transportation device, 9...Detection device.

Claims (1)

[Claims] 1. A lifting device 3 that acts on the planted stem culm during reaping;
The combine harvester is equipped with a device 9 for detecting the reaped length of the stem culm, and a device 5 for lifting and transporting the reaped stem culm immediately after reaping, and in front of the lifting device 3, there is a device 9 for the planted stem culm. An auxiliary pulling device 3b is provided which acts to pull up the ear to near the tip side end before reaping, and the cutting length detecting device 9 is configured to perform detection immediately before the auxiliary pulling device 3b finishes lifting. A combine harvester that is characterized by one thing.