JPS611586A - Working machine - Google Patents

Abstract

PURPOSE:To automatically hold a ground working machine in a predetermined working attitude even though a carrier bed is laterally inclined, by providing such an arrangement that the ground working machine which is vertically moved relative to the carrier bed is made rollingably controllable in accordance with the inclination of the vehicle bed. CONSTITUTION:A vertical hydraulic cylinder device 17 for vertically moving a ground working machine relative to a carrier bed, is coupled to a hydraulic device 16 through the intermediary of a control valve device 19 which is controlled in accordance with the result of the derection of inclination by an inclination detecting device 18. That is, the device 17 is extended and retracted in accordance with an inclination signal from the device 18 to compensate and control the ground working machine in a predetermined attitude in which the machine is parallel with the ground surface.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that a vehicle chassis that is driven by a traveling device is equipped with a ground-based work machine that performs work while maintaining a fixed posture relative to the ground. The present invention relates to an improvement of a work machine that performs a predetermined work using a machine.

Regarding the above-mentioned type of working machine, when it comes to the reaping device which is a passenger/inner reaping device installed on the front end side of the vehicle platform which is driven by a traveling device, when the vehicle platform is traveling, this reaping device which is a ground-based working device touches the ground. By being held in a nearly parallel position, the machine performs the prescribed work of cutting the culms at a constant cutting height. As a result, the machine tilts left and right, changing its posture on the ground and making it impossible to perform certain tasks. For this reason, it is desirable for this type of work equipment to be able to automatically correct the ground attitude of the ground work equipment to a state in which it can perform the specified work when the traveling chassis is tilted. .

The present invention has been made in response to this demand, and is capable of automatically maintaining the posture of the ground work machine in a predetermined working posture even if the vehicle platform tilts left and right due to the tilting of the left and right traveling devices. The purpose is to provide a new work machine that can stably perform ground work.

For this purpose, in the present invention, a ground work machine is provided on a vehicle chassis having a traveling device so as to expand and contract its relative relationship with the vehicle chassis in the vertical direction via a hydraulic cylinder device, and the ground work machine is The present invention proposes a work machine configured to enable rolling control based on the detection results of an inclination detection device.

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

FIG. 1 shows a schematic side view of a container 1 in which the present invention can be implemented. In the figure, reference numeral 2 denotes a traveling device consisting of a pair of left and right crawlers (one is omitted in the drawing), and 13 denotes a chassis 1 on which the traveling devices 2, 2 are mounted.
2 and 12 (Fig. 3) are mounted on the rocker frame, 6 is the machine body mounted on the rocker frame 13, 7 is the threshing section supply port provided in the machine body 6, and 3 is the threshing section supply lower. 4 is a weed cutting body arranged in front of the weed cutting body 3 and mounted on the rocking frame 13, and 4 is a clipper mounted on the rocking machine frame 13 arranged so as to cut the end of the culm cut by the grass cutting body 3. A ground work machine consisting of a type reaping device, 5
1 shows a conveying device for conveying the culm harvested by the reaping device, which is the ground work machine 4, to the threshing section supply lower.

The traveling device 2 consisting of the crawler includes a driving wheel 9 and a driven wheel mounted on a longitudinally long frame 8, and a plurality of rolling wheels 10 which are loosely supported along the longitudinal direction of the frame 8.
・This is a normal type consisting of endless crawler belts 11 (Fig. 4).

Therefore, the chassis 1 on which the left and right traveling devices 2, 2 are mounted
2-12 is divided into left and right halves as shown in FIG.
are mounted separately. The lower ends of the support rods 15 are connected to the front and rear ends of the left and right chassis 12 so that they can rotate three times forward and backward. The upper ends of each of the above-mentioned rocker frame 13 are fitted into the guide tube portions 14 provided symmetrically in the front and rear directions, respectively, so as to slide only in the vertical direction, respectively, and the rocker frame 13 includes each of the guide tube portions 1
The upper end portions of hydraulic cylinder devices 17, which are operated separately and extend and contract up and down, are connected to positions adjacent to the hydraulic cylinder devices 17 so as to freely rotate back and forth, and these hydraulic cylinder devices 17... The lower ends of each of the above are pivotally connected to the front and rear ends of the left and right chassis 12φ12 and adjacent to the support rods 15, 15 so as to be rotatable in the front and rear direction, so that the ground work machine 4 can be supported. The rocking frame 13 is mounted on the chassis 12 so as to be freely raised and lowered by the operation of hydraulic cylinder devices 17, and the swing frame 13 is mounted on the chassis 12 so as to be freely raised and lowered by the operation of the lower hydraulic cylinder devices 17. 12, 12 so that the ground work machine 4 can be tilted and swung relative to the hydraulic cylinder device 17.
W controls the operation of the hydraulic cylinder device 17 based on the detection result of the inclination detection device 18 so that the relative position with respect to the chassis 12-12 can be freely displaced in the vertical direction by the operation of... Tilt adjustment control for correcting and controlling the attitude of the ground work machine 4 supported by the swinging machine frame 13 to a predetermined working attitude parallel to the ground by tilting and swinging the motive frame 13 with respect to the chassis 12φ12. As shown in FIG. 5, the device includes a control valve device 19 of the hydraulic device 16 that can house a solenoid-type switching valve a for switching and controlling the operation of the aforementioned hydraulic cylinder device 17; The switching operation of the switching valve a of the control valve device 19 is controlled by the detection of the left and right inclination of the ground work machine 4.
It consists of a tilt detection device 18 provided in the chassis 12 and
12 is tilted left and right due to unevenness in the field, the rocker frame 13 is tilted left and right, and when the ground work equipment 4 mounted on the rocker frame 13 is tilted left and right, the tilt detection device 1
8 detects its inclination and sends it out by No. 48 a;n
a... to operate the hydraulic cylinder device 17... to tilt the rocker frame 13 with respect to the chassis 12-12, thereby correcting the ground attitude of the ground work machine 4 horizontally. As a result, the ground work machine 4 is maintained in a state substantially parallel to the ground in the left-right direction with respect to the ground.

20 is the power of the prime mover (not shown) to the left and right traveling devices? In this embodiment, a universal joint 2 is connected to the axle 21 of the driving wheel 9 and the main shaft 23 protruding to both sides of the transmission case 22 which houses the transmission mechanism.
4, and is configured to be able to conduct transmission regardless of the vertical movement of the traveling devices 2. In addition, 30 is each support rod 15
It is a damper that regulates the range of vertical movement of the

In the work machine according to the present invention, when the chassis tilts left and right due to unevenness in the field, and the ground work machine tilts left and right, the tilt detection device detects the tilt, and based on the detection result, the hydraulic cylinder The device is activated to roll the ground-based work equipment relative to the vehicle platform, and automatically corrects the lateral attitude of the ground-based work equipment to the ground, so the ground-based work equipment maintains a constant ground-based working position regardless of the inclination of the traveling device. You can now hold it and work.

[Brief explanation of drawings]

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 a...Switching valve 1...Combine harvester 2...Traveling device 3...Grass splitter 30...Stock bar 4...Ground work machine 6...Body 7...Threshing Part supply port 8...Frame 9...Drive wheel 9
'... Driven wheel 10... Rolling wheel 11... Crawler track
12... Vehicle chassis 13... Rocker frame 14... Guide tube portion 15... Support rod 16... Hydraulic system
17... Hydraulic cylinder device 18... Incline detection device 19... Control valve device 20... Transmission means
21...Axle 22...Mission case
23... Main shaft 24... Universal joint

Claims (1)

[Claims] A ground working machine is installed on a vehicle chassis having a traveling device so as to expand and contract its relative relationship with the chassis in the vertical direction via a hydraulic cylinder device, and the ground working machine is rolled based on the detection result of the inclination detection device. A work machine configured to be controllable.