JPH06303812A - Leaf and stalk cutting apparatus of self-propelled harvester - Google Patents

Abstract

PURPOSE:To uniformly transfer root crops without causing the deviation and to accurately and efficiently cut the leaves and stalks of the crop by keeping the surface of arranged rollers in horizontal state even on a field inclined in longitudinal or lateral direction. CONSTITUTION:A supporting frame 12 supported in a state freely swinging around a supporting shaft in longitudinal direction is provided with a number of spiral rollers 29 and smooth rollers 30 arranged alternately to each other and rotating inwards. The front side of the frame (b) of the rollers is supported with a front side supporting shaft 21 in a laterally swingable manner and the rear side of the frame (b) is supported with the rear side supporting shaft 27 of a vertically movable apparatus (c) in a laterally swingable manner. The front-side supporting shaft 21 and the rear-side supporting shaft 27 are positioned on one straight line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a foliage cutting device for a self-propelled harvester.

[0002]

2. Description of the Related Art A self-propelled harvester that scoops onions such as onions in a field by a scooping device installed on the front side of an automatic traveling device, which is installed behind the traveling device. The one in which the foliage is cut and conveyed to the device and loaded and stored in a container is disclosed in, for example, Japanese Utility Model Sho 62-28.
It is described in Japanese Patent No. 819 and is publicly known, and a root and vegetables in which the foliage has been cut are left in the field again for land drying.

For cutting the foliage, a plurality of sets of a pair of spiral rollers and smooth rollers which rotate inwardly toward each other are provided in a row, and these are driven all at once, whereby the root vegetables received from the scooping device to one side. Is conveyed by the spiral lead of the spiral roller toward the other side in the axial direction thereof, that is, toward the stacking device, and the foliage of the root vegetable is squeezed downward between both rollers during the conveyance to cut the foliage.

[0004]

With this foliage cutting device, in order to reliably and efficiently cut the foliage while conveying the root vegetables in a predetermined direction, the upper surface of the foliage cutting device, more specifically, the spiral. It is preferable that the root vegetables are placed on the upper surfaces of the roller and the smooth roller in a row so that the root vegetables do not overlap each other and are evenly held over the entire surface.

However, when the field is tilted to the front or back or to the left or right, the foliage cutting device is also tilted along the tilt, so that the root vegetables are biased toward the lower side and overlap, and the foliage is conveyed without being cut. This results in the inconvenience that only one spiral roller and one smooth roller are used.

The object of the present invention is to eliminate the above-mentioned drawbacks by making it possible to always keep the upper surface of the foliage cutting device horizontal even if the self-propelled harvester tilts back and forth or left and right due to the inclination of the field. is there.

[0007]

[Means for Solving the Problems] That is, the foliage cutting device of the present invention conveys root vegetables scooped from the field by a scooping device installed on the front side of the automatic traveling device while cutting the foliage and transporting them. In a self-propelled harvester that is either fed to the loading device or left in the field again for land-drying, a spiral is mounted on a support frame 12 that is swingable back and forth around fulcrum shafts 15 and 15. The roller 29 and the smooth roller 30 are alternately supported by the front fulcrum shaft 21 so that the front side of the roller arranging frame b, which is arranged in a plurality of rows so as to rotate inwardly, is rotatable left and right.
The rear side of the roller row frame b is rotatably supported on the rear fulcrum shaft 27 of the vertical movement device c, and the front fulcrum shaft 21 and the rear fulcrum shaft 27 are arranged in a straight line. It is a stem and leaf cutting device.

[0008]

The roller row installation frame body b is vertically rotated about the fulcrum shafts 15 and 15 of the support frame by the vertical movement device c,
Further, since the front fulcrum shaft 21 and the rear fulcrum shaft 27 can be rotated left and right, the roller row installation surface can be kept horizontal regardless of the inclination of the field. Therefore, the root vegetables are not biased on one side and overlapped, and the foliage is conveyed without being cut, and the disadvantage that only the spiral roller 29 and the smooth roller 30 on one side are used does not occur.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described in detail below. FIG. 1 shows a schematic side view of the entire self-propelled harvesting machine, in which a movable base a'is provided with a required hydraulic drive means with respect to a fixed base a installed on a machine frame 1 of an automatic traveling device A such as a crawler. It is installed so as to be slidable back and forth, and a scooping device B is provided at the front side of the moving base a ′, a loading device C is provided at the rear side thereof, and a foliage cutting device D is provided at the center.
Is installed on board.

The scooping device B is an auxiliary conveyor 2 with blades for scraping root vegetables in the field, for example, an onion, a scooping conveyor 3 for scooping up, and the scooping device D for moving it upward and backward. And a transfer conveyor 4 which is mounted on the front side of the moving base a ′ so as to be vertically movable. Reference numeral 5 is a gauge wheel for keeping the front side of the scooping conveyor 3 constant with respect to the field scene.

The loading device C is mounted on a pair of left and right lift masts 6 (only one of which is shown) established on the rear side of the moving base a ', and a lift 8 mounted vertically by a hydraulic cylinder 7.
And a receiving end portion 9'for receiving root vegetables such as onions, which have been cut off from the foliage, is placed opposite to the delivery end side of the foliage cutting device D, and the discharge end 9 "is placed on the left and right arm rods 8'of the lift 8. It is composed of a transfer conveyor 9 that can be appropriately adjusted and installed in the opening of the container 10 on which it is placed.

This loading device C increases in weight as the amount of the root vegetables stored in the container 10 increases,
The center of gravity of the entire self-propelled harvester is to be moved to the rear of the automatic traveling apparatus A, but at an appropriate time, by sliding the moving base a ′ forward, the center of gravity of the automatic traveling apparatus A is almost centered. Therefore, the scooping device B is prevented from being lifted to cause an error in scooping root vegetables in the field.

The structure of the foliar cutting device D is as follows. Reference numerals 11 and 11 denote a pair of stanchions formed on the front side of the movable base a ′ and right and left immediately after the scooping device B. Reference numeral 12 denotes a support frame in which standing rods 14 and 14 are erected at the left and right ends of the horizontal rod 13. , The support frame 12 has its upright rods 14, 1
The upper end of 4 is mounted on the upper ends of the columns 11, 11 so as to be able to swing back and forth around the fulcrum shafts 15, 15.

Reference numeral b denotes a roller-arranged frame body in which a front frame 17 and a rear frame 18 are horizontally mounted on the left and right side frames 16, 16 and an auxiliary frame 19 is horizontally mounted further on the front side of the front frame 17. 1
The center of 9 is rotatably supported by a bracket 20 established on the horizontal rod 13 of the support frame 12 by a front fulcrum shaft 21, and the bracket 20 and the auxiliary frame 19 are supported.
A hydraulic cylinder 22 is installed between the and.

Reference numeral c is a vertical movement mechanism installed between the rear side of the roller row frame b and the moving base a ', which is a moving base a'.
2 whose base end is rotatably supported by a bracket 23 of
Bracket 2 supported at the free end of No. 4 via universal joint 25
6, the rear frame 18 of the roller row frame b is attached to the rear fulcrum shaft 27
A hydraulic cylinder 28 is erected between the movable base a ′ and the arm 24 so that the hydraulic cylinder 28 can be swung left and right. In the present embodiment, the front fulcrum shaft 21 and the rear fulcrum shaft 27 are arranged on a straight line passing through the center of the roller row installation frame b, but the arrangement of these both fulcrum shafts may be on a straight line. It suffices that it is not necessarily on the center line of the roller row frame b.

Therefore, the roller array frame b is driven by driving the hydraulic cylinder 28 of the vertical movement mechanism c.
The rear side can be moved up and down around the fulcrum shafts 15 of the support frame 12, and the front fulcrum shaft 21 and the rear fulcrum shaft 2 can be driven by driving the hydraulic cylinder 22.
It can rotate left and right around 7.

Numeral 29 is a spiral roller and numeral 30 is a smooth roller, which are rotatably and laterally movably supported between the front frame 17 and the rear frame 18 of the roller-lined frame body b. The rollers 29 and 30 are arranged so as to rotate alternately and inwardly.

More specifically, a roller chain 33 is wound between a sprocket 31 fixed to each spiral roller 29 and a sprocket 32 mounted on the lower side of the sprocket 31. When the spiral rollers 29 are driven by the intermediate drive section 35, the spiral rollers 29 are forcibly driven to rotate, and the smooth rollers 30 pressed against the spiral rollers 29 are driven to rotate.

Both rollers 29, 30 are provided with adjusting bolts 3 mounted at four positions on the front and rear sides of the left and right side frames 16, 16.
When the roller presser 37 is elastically pressed against the roller presser 38 by means of 6, and the foliage is caught between the rollers 29 and 30, or a foreign substance such as a small stone is sandwiched between them, the chain tension roller 39 and the roller 39 It is absorbed by the tension spring 40 so that normal rotation is always performed.

Reference numeral 41 is a chute installed on the front end side of the roller row frame b, that is, on the receiving end side, for feeding root vegetables conveyed by the scooping device B to the foliage cutting device D, and 42 is The chute is installed on the rear end side of the roller-lined frame body b, that is, on the delivery end side, and is used to feed root vegetables that have been cut and fed by the foliage cutting device D to the loading device C.

As the self-propelled harvester travels, root vegetables such as onions in the field are scooped up by the scooping device B and conveyed, and the foliar cutting device D is passed through the chute 41.
The spiral roller 29 and the smoothing roller 30 are transferred to the upper surface of the row. The transposed root vegetables are conveyed by the spiral lead of the spiral roller 29 in the axial direction thereof, that is, in the loading device C direction, and the foliage is transferred between the rollers 29, 3 during the conveyance.
It is wound downward between 0 and cut, and then fed through the chute 42 to the receiving end 9 ′ of the conveyor 9 of the loading device C and loaded on the container 10.

In the above, when the field is tilted to the front or back or to the left or right, the root of the whole self-propelled harvester and hence the top of the forage cutting device D is also tilted in the same manner along the tilt. However, by vertically moving the rear side of the roller arranging frame b by the hydraulic cylinder 28 of the vertical movement device c, or by moving the roller arranging frame b by the hydraulic cylinder 22. By swinging to the left and right, the upper surface of the foliage cutting device D, that is, the roller row surface can be made horizontal.

Therefore, the root vegetables are biased on one side and overlap with each other, and the foliage is conveyed without being cut,
The disadvantage of using only one spiral roller and a smooth roller is eliminated.

The operation of the hydraulic cylinders 22 and 28 may be performed manually, but it is clear that the hydraulic cylinders 22 and 28 can be automatically controlled by installing a horizontal sensor.

[0025]

As is apparent from the above description, the present invention has the following effects. The roller row frame is
The vertical movement device allows vertical rotation around the fulcrum shaft of the support frame, and horizontal rotation around the front fulcrum shaft and the rear fulcrum shaft, so the roller row surface is always horizontal regardless of the slope of the field. Can be kept. Therefore, the root vegetables are not biased on one side and overlapped with each other, and the foliage is conveyed without being cut, and the disadvantage that only the spiral roller and the smooth roller on one side are used does not occur. In addition, in order to eliminate stem and leaf cutting mistakes due to bias of root vegetables,
There is no need to slow down the traveling speed of the self-propelled harvester as in the past.

[Brief description of drawings]

FIG. 1 is a schematic side view of a self-propelled harvester equipped with a foliage cutting device of the present invention.

FIG. 2 is a front view of an essential part showing a state in which the foliage-cutting device of the present invention is kept in a horizontal state on the right inclined surface of the field.

FIG. 3 is a front view of an essential part showing a state in which the foliage-cutting device of the present invention is kept in a horizontal state on the left inclined surface of the field.

FIG. 4 is a plan view of the foliage cutting device of the present invention.

FIG. 5 is a front view of the above.

FIG. 6 is a rear view of the above.

[Explanation of symbols]

 A Automatic traveling device B Scooping device C Loading device D Stem and leaf cutting device a Fixed base a'Movement base b Roller row installation frame c Vertical movement device 1 Machine frame 12 Support frame 15 Front fulcrum shaft 21 Front fulcrum shaft 27 Rear side Fulcrum shaft 29 spiral roller 30 smooth roller

Claims (3)

[Claims] 1. A root vegetable picked up from a field by a scooping device installed on the front side of an automatic traveling device is conveyed while cutting its foliage and fed to a loading device on the rear side or for land-drying. In a self-propelled harvester that is to be left in the field again, a support frame mounted so as to be able to swing back and forth around a fulcrum shaft is arranged so that spiral rollers and smooth rollers are alternately and inwardly rotated. Supports the front side of the roller row installation frame that is arranged in multiple rows by the front fulcrum shaft so that it can rotate left and right, and the rear side of the roller row installation frame that can rotate left and right by the rear fulcrum shaft of the vertical movement device. A foliar cutting device for a self-propelled harvester, which is supported and in which the front fulcrum shaft and the rear fulcrum shaft are arranged in a straight line. 2. A root vegetable picked up from a field by a picking device installed on the front side of an automatic traveling device is conveyed while cutting its foliage and fed to a loading device on the rear side or for land-drying. In a self-propelled harvester that is to be left in the field again, a plurality of roller arranging frames in which spiral rollers and smooth rollers are alternately and inwardly rotated are arranged in a straight line. A forage cutting device for a self-propelled harvester, which is rotatably supported by a front fulcrum shaft and a rear fulcrum shaft. 3. A self-propelled harvester in which a movable base is erected on the upper surface of a machine frame of an automatic traveling device so as to be slidable back and forth, and a scooping device is mounted on the front side of the movable base and a loading device is mounted on the rear side of the movable base. The foliage cutting device of a self-propelled harvester according to claim 1 or 2, wherein the foliage cutting device is mounted on the center of the movable base of the machine.