JPS611585A - Combine - Google Patents

Abstract

PURPOSE:To prevent the height of mowing from being uneven, by providing a lateral inclination adjustment/control device for laterally sustaining an oscillating machine frame in accordance with the detection of lateral inclination with respect to the ground while leaving a combine in a condition such that it floats up from the ground. CONSTITUTION:A lateral inclination adjustment/control device W controls the operation of a vertical hydraulic device 17 to incline and oscillate an oscillating machine frame 13 with respect to carrier beds 12, 12. Further, the attitude of combines suspended by the oscillating machine frame 13 is controlled such that their lateral directions are made parallel with the ground surface. Further, the device W is composed of a control valve device 19 in a hydraulic device 16, in which a solenoid selector valve (a) is disposed for switchingly controlling the operation of the vertical hydraulic device 17, and a to-ground lateral inclination detecting device 18 which is attached to a machine frame 6, for controlling the switching operation of the selector valve (a) in the device 19 in accordance with the detection of lateral inclination of the oscillating machine frame 13 with respect to the ground.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in combine harvesters in which grain culms harvested by a reaping device are threshed in a threshing section.

When a combine harvester's chassis, which is driven by a traveling device, tilts to the left or right due to irregularities in the field, the clipper-type reaping device, which is supported by a machine frame mounted on the chassis, will cut off one end of its cutting blade. There is a defect in that the cutting height position of the culm within the cutting width varies because it is tilted from side to side so that one end side is low and the other end side is high.

The present invention was first made to correct the above-mentioned defects that occur in conventional combine harvesters. , detects the horizontal inclination of the reaping device, corrects the posture of the reaping device based on it, automatically aligns the cutting height on the left and right sides of the reaping device, and causes one of the left and right ends of the reaping device to protrude into the ground. The purpose is to provide a combiner that can be used in combinations.

To this end, in the present invention, a swinging IF frame on which a reaping device is mounted at a low front position is provided on a vehicle chassis having a traveling device so that it can be raised and lowered using a vertical hydraulic system,
The present invention proposes a combine harvester equipped with a left-right tilt adjustment control device for maintaining the reaping device substantially parallel to the left-right direction in a floating state with respect to the ground based on the detection of the left-right tilt of the rocker frame relative to the ground.

Next, an example of implementation will be described in detail with reference to the drawings.

FIG. 1 shows an outline of a combine harvester (1) seen from the side, in which the present invention can be implemented. In the same figure, (2) is a traveling device consisting of a pair of crawlers provided on the left and right (one is omitted in the drawing), and 0.3+ is the traveling device (2).
2) is mounted on the chassis f12)/+12) (Fig. 3), (6) is the aircraft mounted on the rocker frame 03), and (7) is the aircraft (6). ), (3) is a weeding body disposed in front of the threshing unit supply port (7) and mounted on the rocker frame 03), and (4) is the weeding body (3). ).
) A clipper-type reaping device arranged at the rear position and mounted on the rocker frame α3), (5) supplies the culm cut by the reaping device (4) to the threshing section supply 1) i7) A conveyance device for conveyance is shown. The combine (1) is driven by a traveling device type (2) (2) consisting of left and right crawlers, and a hair clipper type is used to cut the weeds at the edge of the culm with a weed cutting body (3) at the front end. This is a combine harvester in which a harvesting device (4) harvests the harvest, and a conveying device (5) transports and supplies the harvested husk to the threshing section supply port (7), and these aspects are the same as the conventional combine harvester. And the conveyance device (5)
These include a grain culm pulling device (5a) that pulls up the grain culm, a grain culm conveying device (5b) that grips and conveys the root of the harvested grain culm, and a grain tip conveying device (5C) that conveys the tip of the separate grain culm. The traveling device (2) has a driving wheel (9) and a driven wheel (9) attached to a longitudinally long frame (8), and the traveling device (2) has a driving wheel (9) and a driven wheel (9) mounted on a longitudinally long frame (8). This is a normal crawler in which a track OD is endlessly looped around a plurality of roller wheels (10) loosely supported along the track (Fig. 4).

Therefore, the chassis (12), 02) on which the left and right traveling devices (2) -+21 are mounted are divided into left and right halves as shown in FIG. The left and right traveling devices (2) and (2) are mounted separately. At the front and rear ends of each of the left and right chassis (12), there are support rods (1)...
The lower ends of the support rods are connected to each other by pivoting so that they can rotate back and forth, and the upper ends of each of the support rods (one... They are fitted into the provided guide cylinder portions Oa so as to slide only in the vertical direction, respectively, and in the rocker frame α3), there are separately actuated cylinders at positions adjacent to the guide @ portion side. The upper ends of the upper and lower hydraulic devices 07), which extend and retract up and down, are connected to each other so as to freely rotate back and forth, and these upper and lower hydraulic devices a...
The respective lower ends of the left and right chassis 0 and 0 are pivotally connected to the parts adjacent to the support rods a9 and 05) at the front and rear ends of the left and right chassis 0 and 0 so as to be rotatable in the front and rear direction, and , the rocker frame 03) is connected to the vehicle chassis (13 has a vertical hydraulic system 07).
It is equipped so that it can be raised and lowered freely by the operation of the
- (It is installed so that it can tilt and swing relative to 121.

W controls the operation of the vertical hydraulic system 07), thereby tilting and swinging the swinging frame 03) with respect to the vehicle chassis 02, 02), thereby raising the reaping device (4) supported on the swinging frame (13).
) is a horizontal inclination adjustment control device for controlling the posture of the vehicle so that its horizontal direction is parallel to the ground, and as shown in Fig. 5, it controls the operation of the vertical hydraulic device (17) mentioned above. The switching operation of the control valve device α9 of the hydraulic device αG) that houses the solenoid-type switching valve a to be controlled and the switching operation of the switching valve a of the control valve device 09) is performed on the left and right sides of the rocker frame α3). Aircraft controlled by tilt detection (6)
When the vehicle chassis (12) (12) tilts to the left or right due to unevenness in the field, the rocker frame (I3) tilts to the left or right, and the rocker frame (I3) tilts to the left or right. When the reaping device (4) mounted on the reaping device (4) tilts to the left or right, the left/right tilt detection device 08) detects the tilt and sends out a signal to operate the switching valve a.
3) is configured to tilt the vehicle platform (121. Maintain it in a state almost parallel to.

4 is a transmission means for transmitting the power of the prime mover (not shown) to the left and right traveling devices (2), (2), and in this embodiment, the axle (21) of the drive wheel (9) and the transmission mechanism A mission case with a main shaft (main shaft protruding from both sides)
23) via a universal joint (24), and is configured to be able to conduct transmission regardless of the vertical movement of the traveling devices (2). Note that (3o) is a stopper that restricts the range of vertical movement of each support rod 05).

In the combine harvester according to the present invention, when the chassis tilts left and right due to unevenness in the field and the mowing device tilts left and right, the left and right tilt adjustment control device performs a control operation,
The posture of the rocker frame on which the reaping device is mounted is corrected, and the ground posture of the reaping device is maintained in a state in which the left and right sides are approximately parallel to the ground, which effectively eliminates uneven cutting heights caused by the vehicle platform tilting left and right. This also solves the problem of the tip of the reaping device penetrating into the ground due to left and right inclination of the reaping device.

[Brief explanation of the drawing]

Fig. 1 is a side view of a combine harvester embodying the present invention, Fig. 2 is a cutaway front view of the main parts, Fig. 3 is a front view showing the operating state,
FIG. 4 is a side view thereof, and FIG. 5 is a circuit diagram. Explanation of drawing symbols

Claims (1)

[Claims] A rocking frame, on which the reaping device is installed at a low front position, is installed on a vehicle chassis with a traveling device so that it can be raised and lowered using a vertical hydraulic system, and the rocking frame is used to harvest based on the detection of horizontal and horizontal inclinations relative to the ground. A combine harvester equipped with a left-right tilt adjustment control device to maintain the device substantially parallel in the left-right direction while floating above the ground.