JPH04104719A - Reaper - Google Patents

Abstract

PURPOSE:To always maintain reaping height to constant by detection of a reaping sensor when a thrust into levee is prevented by raising grass-dividing frame and grain culm raising device, etc., on the levee and across the levee by raising and lowering of a reaping blade frame. CONSTITUTION:When a thrust into levee face is prevented by raising grass- dividing frame 1 and grain culm on a levee and across the levee by raising and lowering of a reaping blade frame 5, a reaping blade device 6 is controlled so that reaping height is always maintained to constant by detection of a reaping sensor 7. Thereby a reaping blade device 6 is advanced till the side of levee along the soil face to continue reaping and grain culm left on the levee side can be reduced and smooth reaping can be maintained without large putting reaping grain culm on the levee side.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a reaping device and can be used in reapers, combines, etc.

(Prior Art and Problems to be Solved by the Invention) A structure in which a cutting blade device is provided with respect to a cutting frame so that its height and angle can be changed is disclosed in Japanese Utility Model Application Publication No. 57-41026. A configuration for suppressing posture changes is disclosed in Japanese Utility Model Application Publication No. 59-98733.

During combine operation, when the reaping device reaches the edge of the ridge, it is obstructed by the weeding frame that protrudes forward from the reaping device, the grain culm lifting device, etc., and cannot move forward any further, making it impossible to reap.
Leaving mowing residue at the edge of the ridge. This invention attempts to reduce the amount of uncut material by moving the cutting blade device as close to the ridge as possible without moving perpendicularly toward the ridge.

(Means for Solving the Problems) The present invention includes a weeding frame 1 for weeding grain culms, a grain culm lifting device 2 for raising the culm body of the weeded grain culms in a fixed posture. and a reaping frame 5 which is provided with a raking device 3 etc. for raking the lower part of the grass culm toward the reaping side and is movable up and down with respect to the vehicle body 4.
A cutting blade device 6 for reaping the stock base of the raked grain culm that has been raked by the grain culm raking device 3 etc. is provided so that the cutting height can be freely controlled by automatically moving up and down based on the detection of the cutting height sensor 7. The configuration of the reaping device is as follows.

(Action and effect of invention) When harvesting grain culms by moving the vehicle body 4 forward.

Grain culms to be weeded by the weeding frame 1 are pulled up into a certain posture by the pulling device 2, the lower part of which is raked toward the reaping section by the raking device 3, and the base of the stalk is raised by the cutting blade device 6. reap.

The mowing frame 5 is controlled to move up and down to keep the mowing height constant by operation by the operator or detection by a sensor, but when the weeding frame 1 reaches the edge of the ridge, it crosses over the ridge. The reaping frame 5 is raised in such a way that it does not fall into the ridge. At this time, the cutting height sensor 7 detects the height of the cutting blade from the ground, and the cutting blade device 6 is controlled to maintain a constant cutting height, and the cutting height is controlled so that the cutting height is maintained constant. To maintain the height to the soil surface at the cutting height even though the first grade is raised high on the ridge.

When the cutting blade device 6 approaches the edge of a ridge and reaches a position where it cannot advance any further, the vehicle body 4 stops moving.

In this way, by raising and lowering the cutting blade frame 5, the weeding frame 1
or grain culm lifting equipment [When preventing entry into the ridge surface by raising the second grade above the ridge and crossing the ridge, use the cutting blade equipment W6
Since the cutting height is controlled to be kept constant at all times by the detection of the cutting sensor 7, the cutting blade device 6 is advanced along the soil surface to the edge of the ridge to continue cutting, and the cutting height is maintained constant at all times. It is possible to reduce the amount of grain culms left uncut at the edge of the ridge, and although the distance between the raking device 3 and the cutting blade device 6 is different at the edge of the ridge, the grain culm is not raked by the raking device 3. Since the root of the grain is harvested, the harvested grain culm is not disturbed greatly and smooth harvesting can be maintained.

(Example) In the rotation, the reaping frame 5 to which the reaping device is attached is mainly made of pipe material, and its upper end is supported around a horizontal lift shaft 9 on a support frame 8 on the front part of the vehicle body 4. A horizontal horizontal frame 10 is integrally provided at this lower end, and from this horizontal frame 10, the grass dividing frame 1 at each grass dividing position projects forward.
The supporting frame 11 of the grain culm pulling device 2 projects upward, and the cutting blade supporting frame 12 is provided to project from the left and right ends to the front side so as to be rotatable in the vertical direction, and between the left and right cutting blade supporting frames 12. A clipper-shaped cutting blade device 6 is provided horizontally throughout.

The weeding frame 1 has a raking device 3 made of a belt with a lug, a star foil, etc. in the middle, and is configured to be interlocked so as to engage the lower part of the grain culm and rak it rearward. On the rear side, the culm of the raised grain culm is engaged and guided from both left and right sides.

The grain culm lifting device 2 has a lifting lug that is driven by a lifting cinchon that is rotated within a lifting case that slopes upward from the rear side of the weeding frame 1. It engages and plows up toward the tip of the ear, aligning the culm in a certain upright posture. This lifting device 2
Its lower end is connected to the weeding frame 1, and its upper end is connected to the supporting frame 11.
The structure is such that transmission is transmitted via a transmission mechanism within this support frame 11.

The interlocking structure of these cutting blade devices 6, grain culm lifting devices 2, etc. is such that power is transmitted through a horizontal shaft 13 in the horizontal frame 10 via a reaping transmission shaft in the reaping frame S, and from this horizontal shaft 13, the mowing By transmitting power through the cutting blade transmission shaft 14 in the blade support frame 12, and further through the cutting blade angle shaft 15 for adjusting the cutting blade angle, and by transmitting power to the crankshaft 16 that drives the movable cutting blade, the mowing device M6 is operated. It has an interlocking configuration. Further, the lifting device 2 is connected to the raking device 3 via a transmission shaft passing through the support frame 11 in the middle of the horizontal frame 10.
are connected to the horizontal shaft 13 by a transmission shaft passing through the weeding frame 1, etc.
The structure is such that power is transmitted from the

The mowing blade device 6 is moved up and down and the vertical angle is changed by a cutting height control motor 17 provided on the horizontal frame 10 and a cutting blade angle control motor 18 provided on the cutting blade support frame 12. so as to move the cutting blade support frame 12 up and down.
It engages with the pinion 19 of the motor shaft and the wheel rack 2o on the cutting blade support frame 12 side, and moves up and down the cutting blade mounting frame 21 to which the cutting blade device 16 is attached to the cutting blade support frame 12.
The structure is such that they are each driven by meshing with a pinion 22 of the motor shaft and a wheel rack 23 on the cutting blade mounting frame 21 side. Each of these motors 17 and 18 is driven by an output from a controller having a microcomputer, and the vertical angle of the cutting blade device 6 is kept in a constant horizontal relationship with respect to the vertical angle of the cutting blade support frame 12. No matter what cutting height the cutting blade device 6 is at, it remains horizontal. The cutting height sensor 7 for rotation is provided in a pair at the front and rear, and inputs the detection of the ground contact state to the controller, and controls the cutting height control motor so that the height of the cutting blade device 6 from the soil surface is at a constant position. 17, and the cutting blade angle control motor 18 is configured to output an output so that the front and rear inclination angle of this cutting height sensor is horizontal.

Note that the control by the cutting height sensor 7 is controlled by the cutting height control motor 18 by detection by only one of the front and rear sensors.
Further, the cutting height control motor 18 may be outputted using the input when the cutting blade device 6 is in the front-rear horizontal state. It is also good to use a non-contact sensor such as an ultrasonic sensor for cutting height sensing.

A grain culm transfer device 24 rotatable around the lift shaft 9 is provided at the upper end of the reaping frame 5, and the grain culm transfer device 24, which is rotatable around the lift shaft 9, is installed to sandwich the reaped grain culms collected and conveyed from the raking device 3 and the grain culm pulling device 2, and to move the grain culms to the rear. It is transferred and supplied to the starting end of the foot chain 26 of the threshing device 25.

Moreover, this grain culm transfer device 24 is controlled to rotate up and down with respect to the raking device 13, and rotates in a direction synchronized with the vertical movement of the cutting blade device 6, so that it can be used as a threshing device! The handling depth control motor that moves the grain culm transfer device 25 up and down may be controlled in conjunction with the cutting height control motor 7 or the like so that the feeding depth of the grain culm to the grain culm transfer device 25 is maintained constant.

27 is a control device, 28 is a crawler, and 29 is a lift cylinder that raises and lowers the reaping frame 5 using hydraulic pressure, and is configured to output the lifting and lowering rotation manually or by a cutting height sensor or the like.

During the reaping work, the reaping frame 5 is lowered to an appropriate position and moved forward by the drive of the crawler 28, and then the reaping work is performed. When the height between the cutting blade device 6 and the soil surface changes due to the mowing ground changing vertically or the crawler 28 sinking to the soil surface, the cutting height sensor 7 detects this and
The cutting height control motor 17, the cutting blade angle control motor 18, etc. are controlled to change the position of the cutting blade device 6 up and down, and the cutting height is controlled to be maintained at a constant height. Further, when the reaping device reaches the edge of the ridge B, the weeding frame 1 and the like rises so as not to touch the surface of the ridge A. At this time, the height of the cutting blade device 6 determined by the cutting height sensor 7 is maintained at a predetermined cutting height until the cutting height sensor 7 reaches the ridge B. It is possible to reap while maintaining a constant height. Traveling is stopped at a position where the cutting blade device 6 does not run into the ridge.

In addition, if the height change of the ridge A surface is gradual, the cutting height sensor 7 detects this and the cutting blade device 6 is moved upward, so the mowing machine can continue to move without stopping the cutting movement. It is also possible to continue over ridge A.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan sectional view of a part thereof, Fig. 3 is a front sectional view of a part thereof, and Fig. 4 is a part thereof. FIG. (Explanation of symbols) 1 Grass dividing frame 2 Grain culm pulling device 3 Raking device!
4 Vehicle body 5 Reaping frame 6 Reaping blade device 7 Reaping height sensor

Claims (1)

[Claims] A weeding frame 1 for weeding grain culms, a grain culm lifting device 2 for raising the culm body of the weeded grain culms in a fixed posture, and a raking device 3 for raking the lower part of the weeded grain culms toward the reaping side. A cutting blade device 6 for reaping the stock base of the raked grain culm that has been raked by the grain culm raking device 3 etc. A reaping device is provided in which the mowing height can be freely controlled by automatically moving up and down based on detection by a mowing height sensor 7.