JP3131983B2 - Reaper - Google Patents

Description

Description: TECHNICAL FIELD [0001] The present invention relates to a reaper provided in a reaper, a combine, or the like.

[Conventional technology]

A configuration in which the height and angle of the cutting blade device can be changed with respect to the reaping frame is disclosed in Japanese Utility Model Laid-Open No. 57-41026. Each of which is publicly known.

[Problems to be solved by the invention]

When the harvester reaches the ridge in the combine operation, it is hindered by the weeding frame that projects forward from the reaper or the cereal stem raising device, etc. Leaves mowing.

Further, Japanese Utility Model Application Laid-Open No. 57-41026 and Japanese Utility Model Application Laid-Open No.
In the reaper disclosed in the above publication, the range in which the cutting blade device can be lowered with respect to the reaping frame is small, and when the reaping frame is raised to a position where the weeding frame does not protrude into the ridge surface, the reaping device does not It is not possible to follow the ground, and it is not possible to perform reaping work near the ridge.

The present invention seeks to reduce cutting residue by moving the cutting blade device as close to the ridge as possible while proceeding in a state perpendicular to the ridge.

[Means for solving the problem]

The present invention employs the following technical means in order to solve the above-mentioned problems.

That is, a weeding frame 1 for weeding the culm, a cereal culm raising device 2 for raising the culm of the weeded culm in a certain posture, and a raking on the lower part of the weeding frame culm to the cutting side. The vehicle body 4 having the device 3 and the like
The mowing frame 5 provided to be able to move up and down freely,
A cutting blade device 6 for cutting a root portion of the stalked stalk stalked by the stalk stalk scraping device 3 or the like is provided so that the cutting height can be controlled by automatically moving the cutting blade device 6 up and down by detection of the cutting height sensor 7. The cutting frame 5 is moved to a position where the weeding frame 1 does not protrude into the ridge A surface.
The cutting blade device 6 is configured to maintain the cutting height along the cutting ground even when the cutting height rises.

When cutting the culm by moving the vehicle body 4 forward, the culm weeded by the weeding frame 1 is raised to a fixed posture by the raising device 2, and the lower part is raked by the scraping device 3 to the cutting section side. And the root of the stock is cut by the cutting blade device 6.

The mowing frame 5 is controlled to move up and down so as to keep the mowing height almost constant by an operation by a pilot, detection by a sensor, or the like. The mowing frame 5 is raised so that the weeding frame 1 and the like do not plunge into the ridge A. At this time,
The cutting blade device 6 detects the height with respect to the ground by the detection of the cutting height sensor 7, and is controlled so that the cutting height of the cutting blade device 6 is kept constant. Despite being raised on the ridge, the cutting height is maintained along the cutting ground. When the cutting blade device 6 approaches the edge of the ridge and reaches a position where it cannot advance any further, the advance of the vehicle body 4 may be stopped.

As described above, when the cutting frame 5 is raised and lowered to raise the weeding frame 1 and the cereal stem raising device 2 and the like over the ridges and over the ridges to prevent the rush into the ridge A surface, the cutting blade device 6 Since the cutting height is always maintained along the cutting ground by the detection of the cutting sensor 7, the cutting blade device 6 is advanced along the cutting ground to the ridge to continue cutting, and At the time of ridges, the uncut portion of the grain stem is reduced, and the interval between the raking device 3 and the cutting blade device 6 changes. Since the stalks are cut, the stalks of the cut stalks are not greatly disturbed, and a smooth cutting state is maintained.

〔The invention's effect〕

As described above, the present invention provides a weeding frame 1 for weeding grain culms, a cereal stem raising device 2 for raising the culms of the weeded culms in a certain posture, and a lower part of the grass culm. A stock of the stalked stalks stalked by the stalks stalking device 3 or the like into a cutting frame 5 having a squeezing device 3 or the like for squeezing to the reaping side and being provided to be able to move up and down with respect to the vehicle body 4. The cutting blade device 6 that cuts the root portion is automatically moved up and down by the detection of the cutting height sensor 7 so that the cutting height can be controlled, so that even if the cutting frame 5 rises to a position where it does not plunge into the ridge A surface, The cutting blade device 6 is a cutting device characterized in that it is configured to maintain the cutting height along the cutting ground, so that the uncut portion at the edge of a ridge by a combine or the like is reduced, and The necessity of the manual cutting operation can be reduced, and the labor of the cutting operation can be reduced.

[Embodiment of the invention]

In the illustrated example, a cutting frame 5 for mounting a cutting device
Is mounted on a supporting frame 8 on the front part of the vehicle body 4 around a horizontal lift shaft 9 with a pipe as a main body, and a horizontal frame 10 is integrally provided at the lower end thereof. The weeding frame 1 at each weeding position is projected forward from the horizontal frame 10, the supporting frame 11 of the grain stalk raising device 2 is projected upward, and the cutting blade supporting frame 12 is vertically moved forward from both left and right ends. A cutting blade device 6 in the form of a clipper is provided horizontally between the left and right cutting blade support frames 12 so as to be rotatable.

The weeding frame 1 is provided with a scraping device 3 composed of a belt with a rug, a star wheel, or the like in the middle, and is interlocked so as to engage the lower part of the grain stalk and scrape backward. On the rear side, the culm of the raised grain culm is engaged and guided from both left and right sides.

The cereal stem raising device 2 has a raising lug driven by a raising chain that is rotated in a raising case that is inclined upward from the rear side of the weeding frame 1, and the raising lug controls the culm of each cutting line. The culm is aligned to a certain standing posture while being lifted toward the ear. The lower end of the raising device 2 is connected to the weeding frame 1 and the upper end is the support frame 11.
And transmitted through a transmission mechanism in the support frame 11.

The interlocking configuration with the cutting blade device 6 and the cereal stem raising device 2 and the like transmits a horizontal shaft 13 in a horizontal frame 10 via a cutting transmission shaft in the cutting frame 5, and cuts from the horizontal shaft 13. Blade support frame 12
By transmitting a cutting blade transmission shaft 14 in the inside, and further transmitting a crankshaft 16 for driving a movable cutting blade via a cutting blade angle shaft 15 for adjusting a cutting blade angle, the cutting device 6 is configured to be interlocked. . The raising device 2 is transmitted from the horizontal shaft 13 by a transmission shaft passing through the support frame 11 in the middle of the horizontal frame 10, and the raking device 3 is transmitted from the horizontal shaft 13 by a transmission shaft passing through the weeding frame 1. Configuration.

The structure for vertically moving the cutting blade device 6 and changing the vertical angle is as follows.
The cutting height control motor 17 provided on the horizontal frame 10 and the cutting blade support frame 12
The cutting edge angle control motor 18 provided in the
So that the cutting blade supporting frame 12 rotates vertically with respect to the pinion 19 of the motor shaft and the wheel rack 20 on the cutting blade supporting frame 12 side. The cutting blade mounting frame 21 on which is mounted is driven up and down by meshing with a pinion 22 of a motor shaft and a wheel rack 23 on the side of the cutting blade mounting frame 21, respectively. In addition, each of these motors
17 and 18 are driven by an output from a controller having a microcomputer, and the vertical angle of the cutting blade device 6 is set to be substantially horizontal with respect to the vertical angle of the cutting blade support frame 12 so as to be at a certain function position. Thus, the cutting blade device 6 is maintained substantially horizontal regardless of the cutting height. The cutting height sensors 7 in the illustrated example are provided in a pair at the front and rear, and input the detection of the ground contact state to the controller, so that the height of the cutting blade device 6 from the soil surface is constant. 17 and the cutting blade angle control motor 18 is output so that the front and rear inclination angles of the cutting height sensor 7 become substantially horizontal.

The cutting height sensor 7 controls the cutting height control motor 18 by detecting only one of the front and rear sensors.
Alternatively, the cutting height control motor 18 may be output with an input when the cutting blade device 6 is in the front-rear horizontal state. Further, a non-contact sensor such as an ultrasonic wave may be used as the cutting height sensor 7.

At the upper end of the cutting frame 5, a grain culm transfer device 24 rotatable around the lift shaft 9 is provided to hold the harvested grain culm collected and fed from the scraping device 3 and the grain culm raising device 2 to the rear. To the starting end of the feed chain 26 of the threshing device 25. or,
The grain culm transfer device 24 is controlled to rotate up and down with respect to the scraping device 3, rotates in a direction synchronized with the up and down movement of the cutting blade device 6, and supplies the grain culm to the threshing device 25. In order to maintain the uniformity, the depth control motor for vertically rotating the grain culm transfer device 25 may be interlocked by the cutting height control motor 7 or the like.

Reference numeral 27 denotes a control device, reference numeral 28 denotes a crawler, reference numeral 29 denotes a lift cylinder which raises and lowers the mowing frame 5 by hydraulic pressure.

During the cutting operation, the cutting frame 5 is lowered to an appropriate position, and the cutting operation is performed while being driven forward by the crawler 28. When the height of the cutting blade device 6 between the cutting surface and the soil surface changes due to the vertical change of the cutting ground, or the crawler 28 sinks on the soil surface, the cutting height sensor 7 detects this and controls the cutting height. The motor 17 and the cutting blade angle control motor 18 are controlled to change the position of the cutting blade device 6 up and down so that the cutting height is maintained at a substantially constant height. Further, when the mowing device reaches the ridge B, the weeding frame 1 and the like rise so as not to penetrate the surface of the ridge A. At this time, the height of the cutting blade device 6 by the cutting height sensor 7 is maintained at a predetermined cutting height until the cutting height sensor 7 reaches the ridge B.
The mowing height can be kept constant until mowing. The traveling is stopped at a position where the cutting blade device 6 does not plunge into the ridge.

When the height change of the ridge A surface is gentle, the cutting blade device 6 is moved upward by the detection of the cutting height sensor 7,
Even if mowing is not stopped, continue running as it is and ridge A
It can be exceeded.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is a partial plan sectional view, FIG. 3 is a partial front sectional view, and FIG. FIG. DESCRIPTION OF SYMBOLS 1 ... Weeding frame 2 ... Grain culm raising device 3 ... Scraping device 4 ... Car body 5 ... Cutting frame 6 ... Cutting blade device 7 ... Cutting height sensor

Claims (1)

(57) [Claims] 1. A weeding frame 1 for weeding a culm, a culm raising device 2 for raising the culm of the weeded culm to a fixed posture, and a lower part of the weeding grain culm to a cutting side. A cutting frame 5 having a scraping device 3 and the like, which is provided so as to be able to move up and down with respect to the vehicle body 4.
In addition, a cutting blade device 6 for cutting the root portion of the stalks stalked by the stalk stalk scraping device 3 or the like is provided so that the cutting height can be controlled by automatically moving the cutting blade device 6 up and down by the detection of the cutting height sensor 7. Therefore, even if the cutting frame 5 rises to a position where the weeding frame 1 does not protrude into the ridge A surface, the cutting blade device 6 is configured to maintain the cutting height along the cutting ground. Reaper.