JPS6014364Y2 - Rotary weeding device in combine harvester - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rotary weeding device for a combine harvester.

(Prior Art) A conventional combine harvester is equipped with a reaping device that raises the standing stubble lying in an upright position at the front of the machine body and cuts the root of the stubble.
It was configured to perform threshing using an automatic feeding threshing device at the rear.

In addition, the conventional combine harvester has an inverted triangular weed cover in the front position, and has a weed divider in front of the weed cover that has a weed divider lug that rotates in a plane parallel to the direction of movement of the machine. It had a structure in which a lifting device was provided behind the weeding cover and had a lifting lug that rotated in a plane substantially perpendicular to the direction of movement of the aircraft (Japanese Patent Laid-Open Publication No. 4881/1983). .

In the conventional combine harvester, the unstubble on the side of the machine leans towards the machine and interferes with various operations, so a guide rod called a narrow guide is attached to the side of the machine to lean against. It prevented getting stuck.

(Problem that the invention aims to solve) However, as is well known, the conventional narrow guide is of a fixed type and simply pushes the unstubble to the side, so it is not decisive, but rather The disadvantage was that the narrow guide pushed the unstubbed trees forward.

That is, since the weeding device having the weeding lug described in the above-mentioned Japanese Patent Application Laid-Open No. 53-4881 is also located in front of the weeding cover, it simply divides the standing stubble into right and left sides. A guide rod called a narrow guide was used to prevent unstubble from leaning against the fuselage.

(Means for Solving the Problem) Therefore, the present invention has been devised by providing a lifting device 5 having a lifting lug 9 for pulling up the stubble at the front position of the combine harvester, and installing a lifting device 5 on the side of the machine body on the side of the lifting device 5. A weeding device 10 having a rotary weeding lug 26 for separating unstubble is provided, and the weeding device 10 has a sprocket shaft 14 at the bottom of the pulling device 5 and a sprocket at the bottom of the weeding device 10. between the shaft 22,
It is attached to a combine harvester through a power transmission mechanism and a device capable of raising and lowering in both the front, rear, left and right directions, and a weed cover 4 is attached to the front position of the power transmission mechanism and the device that can raise and lower in front, rear, left and right directions to cover this. This invention overcomes the above-mentioned defects by using a rotary type weeding device.

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a traveling device, which is composed of a pair of crawlers.

2 is an automatic feeding type threshing device mounted on the traveling device 1.

A reaping device 3 is provided at a position in front of the traveling device 1.

The reaping device 3 is formed by a weed cover 4, a pulling device 5, a cutting blade device 6, and the like.

Reference numeral 7 designates a conveying device for transporting the standing stubble harvested by the reaping device 3 to the automatic feeding type threshing device 2, and 8 designates a raking device.

However, the lifting device 5 is
It has a lifting lug 9 that rotates along a plane perpendicular to that direction.

A weed tearing device 10 is provided on the side of the pulling device 5.

That is, 11 and 12 are a pair of upper and lower sprockets provided on the upper and lower sides of the lifting device 5, 13 is a chain wound around the sprockets 11 and 12, and the lifting lug 9 is connected to the chain 13.
The shaft 14 of the lower sprocket 12 of the sprockets 11 and 12 projects rearward, and a gear 16 is fixed to the protruding end 15.

A gear 17 that forms a pair with the gear 16 is mounted so as to be shifted in the uncut land side P direction when viewed from the front side, and both gears 16.1
Wind the Cheno 18 around 7.

A bevel gear 20 is fixed to the shaft 19 of the gear 17.

The rotating shaft 2 of the bevel gear 21 that engages with the bevel gear 20
2 protrudes substantially horizontally toward the uncut land side P, and a lower sprocket 23 is attached to its tip.

A chino 25 is installed between the sprocket 23 and the paired upper sprocket 24.

A case 27 surrounds the gears 16 and 17 and the chino 1B, and the case 27 also surrounds the bevel gears 20 and 21.

The case 27 is mounted on a shaft tube 29 of a shaft fitting 28 that is in contact with the lifting device 5.

The shaft cylinder 29 is provided on the outside of the shaft 14 so as to be concentric with the shaft 14, and 30 is an outer cylinder on the case 27 side that fits around the outer periphery of the shaft cylinder 29.

The case 27 and the shaft fitting 28 are in sliding contact with each other at a position apart from the shaft tube 29, and a long hole 32 is provided in the sliding contact portion.
It is fixed at.

Therefore, when the stopper 31 is loosened, the case 27 rotates about the shaft 14 using the elongated hole 32, and the weeding device 10 is adjusted in elevation in the horizontal direction when viewed from the front.

33 is concentric with the rotating shaft 22 and is connected to the case 27.
The shaft cylinder 34 that protrudes more is an outer cylinder that fits on the outside of the long hole 32, and the outer cylinder 34 has a shaft fitting 35 fixed to the weeding device 10.
The shaft fitting 35 and the case 27 are formed in a part of the
They slide into contact with each other at a position outside the outer cylinder 34 and are fixed with a stopper 36 through a long hole 37.

Therefore, when the stopper 36 is loosened, the shaft fitting 35 rotates around the shaft 22, and the weeding device 10 is adjusted in elevation in the front-rear direction when viewed from the side.

The stopper 31, the elongated hole 32, the stopper 36, and the elongated hole 37 are respectively adjustable devices for vertically and horizontally undulation of the weeding device 10, and in order to prevent the standing plants from getting entangled in these parts. , a weed cover 4 is provided at the front part thereof to cover it.

(Function) Since the present invention has the above-mentioned configuration, when the engine installed at a desired position on the aircraft is started and the aircraft moves forward, and each part is rotated, the standing stubble is separated from side to side by the weeding cover 4. Then, the falling stubble is raised by the lifting lug 9 which rotates along a plane perpendicular to the direction of movement of the machine, the root is cut by the cutting blade device 6, and the raking device 8
The raking is carried out by the conveyor device 7, and the automatic feeding type threshing device 2 is moved by the conveyor device 7.
to be sent to thresh.

Therefore, the lower sprocket 12 of the pulling device 5 of the present invention
When it rotates, it is transmitted through the gear 16 → chain 18 → gear 17 → bevel gear 20 → bevel gear 21 to rotate the sprocket 23, and the chino 25 wound between it and the upper sprocket 24 of the weeding device 10 is Since the weeding lug 26 is attached, it moves upward and removes the standing cuttings on the uncut land side P from the weeding lug 26.
This prevents the user from trying to lean toward the aircraft by lifting it up.

The weeding device 10 is formed to be able to rise and fall freely both in the left and right directions when viewed from the front, and also in the front and rear directions when viewed from the side, so that the inclination can be adjusted in the front, back, right and left directions according to the lodging state of the standing stubble. By doing this, the standing stubble that is leaning strongly against the fuselage side is guided somewhat more strongly and further away, and when it is not leaning strongly against the fuselage side, the above-mentioned weeding device 1 is used.
0 to guide the erect saplings, and in this way adjust the erect stubble to the best condition according to the erect state of the erect stubble.

At this time, the grass cutting cover 4 provided in front of the pulling device 5 and the grass cutting device 10 prevents the standing plants from becoming entangled with the power transmission device and the undulation adjustment device of the grass cutting device 10.

(Effects) As mentioned above, with conventional combines, the unstubble on the side of the machine leans toward the machine and obstructs various operations. It was attached to the side to prevent the uncut part of the standing hair from resting on the fuselage side.

However, as is well known, conventional narrow guides are of a fixed type, and the fixed rod simply pushes the unstubbed stubble to the side, so it is not decisive. This had the disadvantage of being pushed down and trampled by the combine's crawler.

However, in the present invention, a lifting device 5 having a lifting lug 9 for pulling up unstubble is provided at the front position of the combine, and a rotary type puller is provided on the side of the pulling device 5 to separate the unstubble from the side of the combine harvester. A weeding device 10 having a weeding lug 26 is provided, the weeding device 10
is installed between the lower sprocket shaft 14 of the pulling device 5 and the lower sprocket shaft 22 of the weeding device 10 through a power transmission mechanism and a device capable of raising and lowering in both front, rear, right and left directions, and the power transmission mechanism and The rotary weeding device for a combine harvester has a weeding cover 4 attached to the front position of the device that can be raised and lowered from front to back and left and right to cover the device, so that it is possible to weed the unstubbed body of the machine. Since it is prevented by the lug 26, it can be reliably raised and guided away.

Furthermore, by adding a slight structure to the power transmission mechanism, the weed splitting device 10 can be adjusted in up and down in the front and back and left and right directions, so that it can be guided according to the standing state of the standing stubble. In addition, with the above configuration, there is a fear that the standing plants may become entangled in the power transmission device between the pulling device 5 and the weed splitting device 10, but the present invention has a weed splitting cover 4 in front of it.
Since it is installed, there is no need to worry about this.

[Brief explanation of drawings]

Figure 1 is a front view of the combine, Figure 2 is a side view of the same, and Figure 3 is a front view of the combine harvester.
The figure is a partially vertical front view of the main parts of the pulling device and weeding device,
FIG. 4 is a plan view of the reaping device, and FIG. 5 is a partially cross-sectional plan view of FIG. 3. Explanation of symbols, 1... Traveling device, 2...
Automatic feeding type threshing device, 3... Reaping device, 4...
... Grass cutting cover, 8 ... Raising device, 6 ...
...Mower blade device, 7...Transportation device, Death...
... Scratching device, 9... Lifting lug, 10...
... Grass splitting device, 11 ... Sprocket, 12.
...Sprocket, 13...Che 7.1
4...Shaft, 15...Protruding end, 16.
...gear, 17...gear, 18...
...Che 7.19...shaft, 20...bevel gear, 21...bevel gear, 22...
... Rotating shaft, 23 ... Sprocket, 24 ...
...Top sprocket, 25...Che7.
26... Sewing rug, 27... Case,
28...Shaft fitting, 29...Shaft cylinder, 30
・・・・・・Outer cylinder, 31 ・・・Stopper, 32...
...Elongated hole, 33...Shaft cylinder, 34...
・Outer cylinder, 35...shaft fitting, 36 stopper, 37.
...Long hole, P...Unmoved land side.

Claims (1)

[Scope of utility model registration request] A lifting device with a lifting lug for pulling up the stubble is installed at the front of the combine, and a rotating weeding lug 26 is installed on the side of the lifting device to separate the unstubble on the side of the machine. A grass cutting device 11 is provided with a power transmission mechanism between the sprocket shaft earthwork at the lower part of the pulling device and the sprocket shaft 22 at the lower part of the grass cutting device 11, and the grass cutting device 11 is movable in the longitudinal and horizontal directions. A rotary weeding device for a combine harvester, in which a weeding cover 4 is attached to the front position of the power transmission mechanism and the device that can be raised and lowered forward, backward, leftward and rightward to cover the power transmission mechanism and the device.