JPH0462686B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a harvesting machine for forage crops, etc.

[Prior Art] As shown in FIG. 1, a conventional feed crop harvesting machine A is equipped with a feed crop 3 such as grass or corn grown in a field while moving a frame 2 with a running wheel 1. The crop is harvested by a reaping mechanism 4 installed at the front end of the harvester 2, where it is immediately shredded by a shredding unit 5, and then blown from a blow-up mechanism 6 through its chute 7 to a loading platform 8 at the rear for harvesting. There is something.

[Problems to be Solved by the Invention] The harvesting machine A of this form has a long distance from the running wheel 1 on the front end side to the harvesting work parts such as the reaping mechanism 4 and the shredding part 5. It is difficult to raise and lower the harvester according to the unevenness of the ground, and the heavy harvesting work part is installed with a large overhang in front of the running wheel 1 at the front end.
The center of gravity of the aircraft moved significantly forward, and the weight balance could not be maintained. Furthermore, since the chute 7 is located in front of the driver's seat 9, the rolling motion of the loading platform 8, which becomes heavy due to the progress of the work of the reaping mechanism 4, affects the front frame 10 and the running wheels 1 on the front end side. It was making the accuracy worse.

[Means for Solving the Problems] The present invention has been made in order to solve the problems of the prior art. The purpose of the present invention is to provide a new harvesting machine for forage crops, etc., which improves work accuracy.

Therefore, the present invention has been completed based on knowledge obtained through various studies and experiments in order to solve the above-mentioned problems.

That is, the frame 17 on the harvester main body side and the frame 18 on the loading platform side are viewed in plan V as shown in FIG.
The wheels 16 are pivotally supported on both open sides of the frames 17 and 18, and
The frames 17 and 18 are butted against each other at their closed angle sides and connected by a single vertical shaft 19 with the frame 17 on the side of the harvester main body positioned at the front, thereby forming an X-shaped vehicle body 11 in plan view. , a cutting blow-up device 12 is removably attached to the frame 17 of the vehicle body 11 on the side of the harvester main body, and arranged between left and right wheels 16, 16 pivotally supported on both open sides of the frame 17; Blowing chute 2 of the cutting blowing device 12
A driver's seat 14 is mounted in the front position of the driver's seat 14 so as to be rotatable to the side position as shown in FIGS. By arranging the communicating picking-up and conveying device 13 and detachably attaching it to the frame 17 on the main body side of the harvester, the harvesting work part closely follows the unevenness of the ground, and the weight balance of the entire harvester is well maintained. Furthermore, the present invention is based on the results that the work situation of picking up feed can be clearly seen, and the accuracy of the picking work is also improved.

Therefore, in the present invention, as a means for achieving the above object, a cutting blow-up device is disposed between the front wheels of a self-propelled vehicle body having a wheel running section equipped with at least two front wheels. A high-dump type loading platform is detachably attached to the rear of the platform to accommodate the cut material blown up by the cutting blow-up device and can be discharged by a high dump. The front side is removably equipped with a reaping conveyance device or a pick-up conveyance device that communicates with the cutting blow-up device, and the driver's seat is placed in a side position above the cutting blow-up device and in front of the blow-up chute. This invention proposes a harvesting machine for forage crops, etc., which is rotatably mounted on the machine.

[Example] Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 2 shows a harvester for forage crops, etc., in which the present invention can be implemented.

In FIG. 2, the harvester A has a car body 11,
A cutting blow-up device 12, a pick-up and conveyance device 13,
It is composed of a driver's seat 14 and a high dump type loading platform 15. 16 is a wheel.

As shown in FIG. 3, the vehicle body 11 has a frame 17 on the side of the harvester body and a frame 18 on the loading platform side, each formed in a V-shape in plan view, and wheels are mounted on both open sides of the frames 17 and 18, respectively. 16, and the frames 17 and 18 are butted against each other at their closed angle sides with the frame 17 on the harvester main body side positioned at the front, and connected by a single vertical shaft 19 to form an approximately X shape in plan view. It is structured in the form of letters.

In FIG. 3, a cutting blow-up device 12 is removably attached to a frame 17 on the side of the main body of the harvester, disposed between left and right wheels 16 pivotally supported on both open sides of the frame 17.

As shown in FIG. 4, a muzzle-loading work equipment mounting unit 20 can be replaced on the frame 17 of the harvester main body from which the cutting blow-up device 12 has been removed. 20a is a top link, and 20b is a lower link.

This front-loading work equipment mounting unit 20 has a fifth
As shown in the figure, a snow blower 21 or the like can be appropriately attached.

When attaching the cutting blow-up device 12 to the frame 17 on the side of the harvester main body described above, as shown in FIG. 2, above the cutting blow-up device 12,
The driver's seat 1 is located in front of the blow-up chute 22.
4 is mounted thereon, and on the front side of the cutting blow-up device 12, a pick-up and conveyance device 13 communicating with the cutting blow-up device 12 is arranged and detachably installed. Therefore, the work situation of picking up and transporting can be seen through from the driver's seat 14.

For the convenience of attaching and detaching the blow-up chute 22, the driver's seat 14 is arranged such that the driver's seat 14, which is located at the chain line in FIG. Alternatively, as shown in FIG. 7, the driver's seat 14, which is in the position of the chain line in the same figure, can be moved sideways as shown in the solid line.
Allowing for lateral rotation around the support shaft 14a,
As a result, the upper surface of the V-shaped portion on the front end side of the frame 17 on the side of the harvester main body can be bent and opened.

Of the vehicle body 11, the frame 18 on the loading platform side
may be formed not in a V-shape in plan view but in a cross-shape, as shown in FIG. In either shape, a high dump type loading platform 15 is mounted on the frame 18 on the loading platform side at two points 15 on the left and right on the axle 16a.
b. It is removably supported at a total of three points, one point 15a near the front butt connection part 19a, and can swing left and right at one point 15a near the connection part 19a.

FIG. 8 is a side sectional view of the high dump type loading platform 15 attached to the frame 18 on the loading platform side, and FIG. 9 is a rear view of the attached condition.

FIGS. 10 to 12 are explanatory diagrams of a method for attaching and detaching the loading platform side frame 18 and the high dump type loading platform 15. FIG.

As shown in FIGS. 10 to 13, the high dump type loading platform 15 has a bottom frame 23a and a back frame 23b.
The frame 23 has a single area (see Figure 13).
and a loading platform 15 supported by the frame 23;
It is composed of a stand 24 that is pivotally supported in a link shape on the front end of the bottom frame 23a, and a hydraulic cylinder 25 that connects the stand 24 and the loading platform 15 and expands and contracts. The stand 24 and the bottom frame 23a are lockable. 26 is a pin hole for locking. Further, a docking portion 27 is provided on the intermediate lower surface of the bottom frame 23a, and can be fitted to a docking portion 28 of the frame 18 on the loading platform side of the vehicle body 11. The rear upper end of the loading platform 15 is connected to the back frame 23
It is pivoted to the upper end of b. In Figure 13,
29 is a shaft rod.

When this high dump type loading platform 15 is attached to the frame 18 on the loading platform side of the vehicle body 11, as shown in FIG. After adjusting the height of the docking portion 27, while backing up the vehicle body 11, the docking portion 28 of the cargo bed side frame 18 is attached to the docking portion 27.
to fit. Next, the hydraulic cylinder 25 is retracted,
When the stand 24 is folded and stored, the high dump type loading platform 15 rides on the frame 18 due to its own weight or the force of the hydraulic cylinder 25 (if a double-acting cylinder is used), and the three points 15a, 15b, 1
It comes to be supported by 5b. (Figure 1). The stored stand 24 is attached to the bottom frame 2 by the pin 26a.
Lock to 3a.

In addition, this high dump type loading platform 15 is attached to the frame 1.
8, the operation is the reverse of the above-mentioned mounting operation.

FIG. 13 is a side view showing the opening operation of the loading platform 15 when the hydraulic cylinder 25 is extended and the loading platform 15 is high-dumped from the state in which the loading platform 15 is attached as shown in FIG. 12.

In FIG. 13, the loading platform 15 is connected to a hydraulic cylinder 25 with the shaft rod 29 at the upper end of the back frame 23b as a pivot.
Stretching causes it to rotate approximately 90 degrees clockwise, opening and releasing the harvest. Then, when the hydraulic cylinder 25 is contracted, the loading platform 15 is moved approximately counterclockwise around the shaft rod 29.
It rotates 90 degrees and returns to its original position as shown in Figure 12.

FIG. 14 is a side view of a power distribution device in which a hydraulic pump 30 for operating the hydraulic cylinder 25 is assembled, and FIG. 15 is a front view thereof.

14 and 15, a hydraulic pump 30 is mounted on the flywheel housing 31a of the engine 31.
By assembling these, a power distribution device (power divider) 32 is constructed, and it is made into a unit for easy handling. 33 is a V-belt, and 34 is a pulley.

FIG. 16 is a schematic diagram of a hydraulic circuit that is a power transmission device of the harvester A.

In FIG. 16, the left and right front and rear wheels 16 are each equipped with a hydraulic motor M, resulting in a four-wheel drive system, and each hydraulic motor M can be supplied with oil from two hydraulic pumps 30. Switching valve 3
A hydraulic circuit including 5 is constructed. R is a reduction gear provided in each wheel 16.

The action of this hydraulic circuit is as follows.

When the circuits of the left and right hydraulic pumps 30 are merged by the switching valve 35, oil of the same pressure is supplied to the hydraulic motor M that drives each wheel 16, and a large amount of oil is supplied to the side with less load. , each wheel 1
6 rotates at a rotational speed that provides the same load.

On the other hand, the left and right hydraulic pumps 30 are
In a state where the circuit is divided, that is, in a closed-circuit hydraulic drive system, it is basically unlikely that a large amount of oil will leak, so the engine will surely rotate at the set rotation speed until the set hydraulic pressure is reached. Therefore, the side with the greater load will either turn or not.

Therefore, in a state where the oil is divided by the switching valve 35, the left and right wheels 16 are rotated by oil sent from separate hydraulic pumps 30. If the different hydraulic pumps 30 are of the same shape and capacity, and are driven together by the same drive shaft that is connected to the output shaft of the engine 31, then the same amount of oil will be applied to the left and right wheels 16. When the load on one side is large and the load on the other side is small, the hydraulic pressure on the side with the large load is large, and the hydraulic pressure on the side with the small load is Although the engine speed becomes smaller, the rotation speed remains the same, resulting in a deflock state.

The load on the side with the larger load increases further and exceeds the set hydraulic pressure, and at the same time, the rotation on the side with the larger load stops.

In the power transmission system of the harvester shown in FIG. 16, when the front and rear wheels 16 are separated, they are separated at the illustrated position Y, and the steering of the vehicle body is changed by changing the discharge amount of the left and right hydraulic pumps 30 (left and right). This can be done by the difference in rotation of the wheels.

FIG. 17 shows a case in which casters 36 are replaced in place of the loading platform side frame 18 of the harvester A (FIG. 1).
In addition, FIG. 18 is a side view of the cutting and blowing device 12 in which the cutting and conveying device 37 has been replaced in front of it.
It is a side view of the harvesting machine A in which a tandem long cart 38 has been replaced in place of the loading frame 18, and the picking up and conveying device 13 in front of the cutting blow-up device 12 has been removed.

In the harvester A, frame 1 on the harvester main body side
There is a limit to the bending angle between the frame 17 and the cargo bed side frame 18, and the center of rotation is the angle at which each frame 17 and the cargo bed side frame 18 are bent, as shown in FIG.
This is the intersection point O of the virtual extension lines x and x of the 18 wheels 16a and 16a, and therefore the radius r of headland turning is large.

On the other hand, as shown in FIG.
Then, as shown in Fig. 20, the center of rotation is
The grounding point 16b of the wheel 16 on one side of the frame 17 on the harvester main body side can be used as the grounding point 16b, and therefore the radius r of headland turning can be significantly reduced.
Therefore, the headland can be made significantly narrower.

[Effects of the Invention] As described above, according to the present invention, the distance between the front wheels of the harvester and the harvesting work portion is shortened.
The harvesting work part adapts well to the unevenness of the ground, making it possible to maintain a constant cutting height or pick up hay etc. accurately, and to monitor these operations well from the driver's seat. When harvesting work such as reaping is carried out while cutting objects and loading them onto the rear loading platform, the horizontal sway of the loading platform does not affect the harvesting section in front, so the harvester can run stably. , it is possible to maintain good work accuracy.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a conventional harvesting machine for forage crops, etc., FIG. 2 is a side view of a harvesting machine for forage crops, etc., in which the present invention can be implemented, and FIG. 3 is a side view of a harvesting machine for forage crops, etc., in which the present invention can be implemented. Figure 4 is a plan view of the harvester shown in Figure 3 with the front reaping transport section and cutting blow-up device replaced with a muzzleloader mounting unit; Fig. 5 is a plan view of a snow blower attached to the front-mounted work equipment mounting unit shown in Fig. 4; FIG. 7 is a plan view of a harvester in which the present invention can also be implemented, with the operator's seat rotated to the side;
FIG. 8 is a schematic vertical cross-sectional view of the rear loading platform of a harvester that can also implement the present invention, FIG. 9 is a rear view of the loading platform shown in FIG. 8, and FIGS. These are explanatory diagrams of a method of attaching the rear loading platform of a harvester that can be carried out, of which Figure 10 is a side view of the vehicle body with the height of the docking section of the loading platform adjusted, and Figure 11 is a side view of the docking section of the loading platform with the height adjusted. An explanatory diagram of the state in which the docking part of the vehicle body is fitted, Figure 12 is a side view of the loading platform assembled to the vehicle body, Figure 13 is a side view showing the loading platform opening operation, and Figure 14 is the hydraulic cylinder actuated. FIG. 15 is a front view of the same power distribution device; FIG. 16 is a hydraulic circuit diagram of a power transmission device for a harvester in which the present invention can be implemented; FIG. 17 18 is a side view of a harvester in which the carrier side frame of a harvester embodying the present invention has been replaced with a caster and the blow-up device has been removed; FIG. Fig. 19 is a side view of a transport vehicle obtained by replacing the tandem type long cart and removing the picking and conveying device and the blowing device. 2
FIG. 0 is an explanatory diagram of headland turning of a harvesting machine in which casters are replaced with the loading frame of the harvesting machine according to the present invention. Explanation of drawing symbols, A... Harvester, M... Hydraulic motor, R... Reduction gear, r... Headland turning radius, 1
... Running wheel, 10 ... Front frame, 2 ... Frame, 3 ... Feed crop, 4 ... Reaping mechanism, 5 ... Shredding section, 6 ... Blow-up mechanism, 7 ... Shoot, 8 ...
Loading platform, 9... Driver's seat, 11... Vehicle body, 12... Cutting blow-up device, 13... Picking up and conveying device, 14...
...Driver's seat, 15...High tamp loading platform, 15a.
15b...Support point, 16...Wheel, 16a...Axle, 16b...Grounding point, 17...Frame on the main body side, 18...Frame on the loading platform side, 19...Vertical shaft,
19a... Connection section, 20... Unit, 20a...
...Top link, 20b...Lower link, 21
... Snow blower, 22 ... Fukiage shoot, 23
... Frame body, 23a ... Bottom frame, 23b ... Back frame, 2
4...Stand, 25...Hydraulic cylinder, 26...
...Pin hole, 26a...Pin, 27, 28...Docking part, 29...Shaft rod, 30...Hydraulic pump,
31...Engine, 31a...Flywheel housing, 32...Power distribution device, 33...V belt, 34...Pulley, 35...Switching valve, 3
6... Caster, 37... Reaping conveyance device, 38
...Long truck.

Claims (1)

[Claims] 1. A cutting blow-up device is removably attached to a self-propelled vehicle body having a wheel running section with at least two front wheels, and a cutting blow-up device is arranged between the front wheels, and a cutting blow-up device is installed behind it. A high dump type loading platform is removably attached to accommodate the cut material blown up by the device and can be discharged by a high dump, and on the front side of the cutting blow up device there is a reaping conveyance device or pick-up device that communicates with the cutting blow up device. A harvesting machine for forage crops, etc., which is removably equipped with a lifting conveyance device, and has a driver's seat mounted above the cutting blow-up device and in front of the blow-up chute so as to be rotatable to a side position. .