JPS6340109Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a feed roller of a maize harvester that feeds maize to a shredding device.

The feed roller of a conventional maize harvester has a plurality of circumferential protrusions protruding from the outer circumferential surface of the cylinder, and the maize cut by the cutting blades below the protrusions is transferred to the shredding device. Since all the protrusions are at the same height and are widely spaced apart in the circumferential direction, maize may not adhere to the outer circumferential surface of the cylinder or get caught on the protrusions. Otherwise, the maize may become wrapped, reducing maize feeding efficiency or making maize feeding difficult.

In view of these conventional problems, the present invention reduces maize on the cylinder by forming small protrusions with a smaller protrusion than the protrusions between the protrusions on the outer peripheral surface of the cylinder. The purpose of this is to provide a feed roller for a maize harvester that does not cause adhesion or wrapping, and its features are as follows:
disposed above each of the pair of cutting blades 31;
In order to send the cut maize C to the shredding device 24 at the rear thereof, a plurality of protrusions 36 are provided on the outer peripheral surface 45a of the cylinder 45 at intervals in the circumferential direction and are long in the axial direction of the cylinder and protrude radially outward. In the feed roller of the maize harvester provided herein, the outer circumferential surface 45a has a long protrusion 36 between each protrusion 36 in the axial direction of the cylinder.
The point is that a small protrusion 46 for preventing winding is formed with a smaller amount of protrusion in the radial outward direction.

Embodiments of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 1 and 2,
The maize reaping device 1 includes a traveling vehicle 2 typified by a tractor, a maize harvester 3, and a harvest storage container (not shown) mounted on the bonnet of the traveling vehicle 2.

Traveling vehicle 2 indicates a back and forth type tractor,
4 is a transmission case that forms part of the fuselage, 8
9 indicates a rear axle case, 9 indicates a rear wheel, and 12 indicates a rear wheel fender. An operating section 13 is formed between and in front of both rear wheel fenders 12.
3, a seat 14 and a handle 15 are arranged, and these can be rearranged between a forward position and a reverse position, and in FIGS. is the forward direction of work progress.

Reference numeral 16 indicates a hydraulic system provided at the rear upper part of the transmission case 4, and reference numeral 17 indicates a three-point link mechanism having a pair of left and right lower links 18 and one top link 19, which allows the maize harvester 3 to move up and down. .

This maize harvester 3 includes a divider 21, a guide rod 22, a cutting feed device 23, a casing 24a, a flywheel 25, and a blow-up chute 2.
6 and a shredding device 24 having a mounting frame 27.

There are a pair of left and right dividers 21, and they are attached to the casing 24a side via side plates 28 and the like.

The cutting feed device 23 has a pair of left and right feed rollers 30 supported by a vertical shaft 29, and a star-shaped cutting blade 31 is attached to the lower end of each feed roller 30 so as to cut the vicinity of the root of the maize C. It is being Each vertical shaft 29 is rotatably supported by an upper transmission case 32 and a lower bearing member 33 mounted on the front surface of the casing 24a.
They are interlocked with the rotating shaft 35 of the flywheel 25 via a transmission mechanism in the drive mechanism 2, and are driven in opposite directions to transport the harvested maize C rearward while falling over.

In the shredding device 24, the casing 24a has a blow-up chute 26 connected to its upper wall, and its front wall is located below the rotating shaft 35 and in the direction of rotation of the flywheel 25 with respect to the center of the cutting feed device 23. A square hole-shaped supply port 37 is formed so as to be slightly eccentric on the opposite side, and an L-shaped fixed blade 38 is attached to the inner surface along the edge of the supply port 37. Of course, this fixed blade 38 is provided astride the rotation direction side and the lower edge side of the flywheel 25.

The flywheel 25 is rotatably supported within the casing 24a by a rotating shaft 35, and a movable blade 39 is attached to the front surface of the flywheel 25, and blow-up blades 40 are provided radially projecting from the outer periphery. ing. The movable blade 39 is used to shred the maize C supplied into the casing 24a from the supply port 37 between it and the fixed blade 38, and is fixed to a mounting base attached to the flywheel 25 with bolts. The movable blade 39 is inclined by a predetermined angle so that its radially outer side lags behind the rotational direction of the flywheel 25. Therefore, the movable blade 39 cuts the maize C from the radially inner side first between the movable blade 39 and the vertical part of the fixed blade 38.

The rotating shaft 35 is interlocked and connected to an input shaft 42 mounted on the rear wall of the casing 24a through a winding transmission mechanism 41, and the input shaft 42 is connected to the rear PTO shaft of the traveling vehicle 2 through a universal joint shaft. 43 in a detachable manner.

The mounting frame 27 is attached to the rear surface of the casing 24a so as to be slightly eccentric in the lateral direction.
is detachable from the three-point linkage mechanism 17 of the vehicle 2.

Each of the feed rollers 30 has a circular cylindrical body 45 fixed to the vertical shaft 29 and the cutting blade 31, and has a plurality of protrusions 36 (protrusions) formed on the outer circumferential surface 45a at equal intervals in the circumferential direction. ), and each feed blade 36 is long in the axial direction, and in the embodiment is formed over the entire length of the cylinder 45, and the maize C cut by the cutting blade 31 is sent to the supply port of the shredding device 24. Send it to 37.

Further, on the outer circumferential surface 45a of the feed roller 30, small protrusions 46 are formed between the respective feed blades 36.
This small protrusion 46 is similar to the feed blade 36 and is connected to the cylindrical body 4.
5 are welded together along the axial direction of the cylinder body, and the amount of radially outward protrusion from the cylinder body 45 is set to be smaller than the amount of protrusion of the feed vane 36. The left and right feed rollers 30 are driven in opposite directions, and the left and right feed blades 36
The rotational trajectories of the outer radial ends of the two are overlapping, and the center of the two feed blades 36 is located between the two feed blades 36 of the other side.
The small projections 46 are also located at a position slightly offset from the center between the sending blades 36 so as not to collide with the opposing feeding blades 36.
However, the small protrusion 46 may be arranged in the center between the feed blades 36 as long as the rotation locus of its radially outer end does not overlap with the rotation locus of the feed blade 36 on the opposite side. Furthermore, since maize C has thick stems and branches and leaves, it is possible to feed the maize C even if the rotation loci of the left and right feeding blades 36 do not overlap.

As described above, by forming the small protrusions 46 between the feeding blades 36, the maize C fed into the supply port 37 by the feeding blades 36 is prevented from adhering to or wrapping around the outer circumferential surface 45a of the cylinder body 45. Instead, it is always floating between the feeding blades 36, allowing reliable feeding.

FIGS. 3 and 4 show a second embodiment of the feed roller 36, in which a large protrusion 36 and a small protrusion 46 protruding from the outer peripheral surface 45a of the cylinder 45 cut the iron plate at an acute angle. It is bent to have greater strength than that of the first embodiment, and is designed to prevent the maize C from getting caught. Note that if maize C is cut by the feed roller 30 before being shredded, the shredded lengths will be uneven, which is undesirable. It's better to leave it alone.

According to the present invention detailed above, the feed roller 30
A small protrusion 46, which is also long in the axial direction of the cylinder and has a smaller protrusion than the protrusion 36, is formed between the protrusions 36 on the outer peripheral surface 45a of the cylinder 45, which are long in the axial direction of the cylinder. , the maize C is shredded by the device 2 using the protrusion 36.
4, the maize C can be floated from the outer circumferential surface 45a between the protrusions 36, thereby preventing the maize C from adhering to or wrapping around the feed roller 30, increasing the maize feeding efficiency. can be maintained and reliably fed.

[Brief explanation of the drawing]

1 and 2 show a first embodiment of the present invention, FIG. 1 is an overall sectional side view, FIG. 2 is an overall sectional plan view, and FIGS. 3 and 4 are a second embodiment of the invention. An example is shown in which FIG. 3 is a sectional plan view of a main part, and FIG. 4 is a partially sectional front view. 3... Maize harvester, 23... Cutting feed device, 24... Shredding device, 30... Feeding roller, 3
1... Cutting blade, 36... Feed blade (large protrusion),
37... Supply port, 45... Cylindrical body, 45a... Outer peripheral surface, 46... Small protrusion, C... Maize.

Claims (1)

[Scope of utility model registration request] It is arranged above each of the pair of cutting blades 31, and the cut maize C is shredded by the shredding device 24 behind the cutting blades 31.
In a feeding roller of a maize harvester, a plurality of protrusions 36 are provided on the outer peripheral surface 45a of the cylinder 45 at intervals in the circumferential direction and are long in the axial direction of the cylinder and protrude radially outward. A maze characterized in that a small protrusion 46 for preventing winding is formed on the surface 45a between each protrusion 36, which is long in the axial direction of the cylinder body and projects less in the radial outward direction than the protrusion 36. Harvester feed roller.