JPS6129243Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a roll for a conditioner.

There is a well-known conditioner that bends and cracks the stems of grass clippings by rotating a rubber roll and a steel roll that are brought into pressure contact with each other using a bullet or the like, and passing grass clippings between the two rolls. be.
By the way, in the past, the rubber roll had a simple cylindrical shape, so even if a large amount of grass clippings entered between the two rolls during forming, the outer peripheral surface of the rubber roll had some elasticity only on the radially inward side. It only deforms, and the escape from large amounts of grass clippings is small.
Therefore, in the past, in the above-mentioned case, the stems of the grass clippings were crushed too much by the strong pressing force, causing the problem that the liquid components inside the stems leaked out.

The present invention was devised in view of the above-mentioned circumstances, and is characterized by a conditioner roll that is rigid and faces a roll having grooves formed in a spiral shape on its outer circumferential surface. Discs made of an elastic material and having the core rod inserted through the center are arranged in the axial direction on the core rod, and a part of the outer peripheral surface of the disc is made to have a larger diameter than the other part. That's what I did.

Hereinafter, the first embodiment of the present invention will be explained based on the drawings of FIGS. 1 to 5. In FIGS. 1 to 3, 1 is a tractor, 2 is a mower conditioner, and via a three-point linkage mechanism 3 so that it can be moved up and down. The mower conditioner 2 includes a machine frame 4 located at the rear of the tractor 1, and a working part 5 provided on the side thereof so as to be freely raised.
It consists of The working section 5 includes a machine frame 6 and a mower section 7.
The mower section 7 and the conditioner section 8 are connected to the PTO shaft transmission mechanism 10 of the tractor 1.
It is driven by receiving power transmission through etc.
The mower part 7 has a pair of left and right cutter parts 11,
Each cutter portion 11 includes a rotating drum 12, a cutting blade body 1
It is composed of a rotary disk 14 having a rotary disk 3, etc. Both cutter parts 11 are driven to rotate in opposite directions as shown by the arrows in FIG. 1, and grass clippings are discharged rearward from the inner side of both cutter parts 11. The conditioner section 8 has an upper roll 15,
and a lower roll 16 located diagonally downward to the rear thereof, and both rolls 15 and 16 are pressed into contact with each other by a pressure mechanism with an adjustment mechanism (not shown).
As shown by the arrow directions in the figure, the mower section 7 is driven to rotate in opposite directions, and the grass clippings cut by the mower section 7 are discharged rearward through between the two rolls 15 and 16. The lower roll 16 is made of steel, and several grooves 17 are spirally formed on its outer peripheral surface.

As shown in FIGS. 4 and 5, the upper roll 15
has a core rod 18 made of steel, and disks 19 made of an elastic material such as rubber are arranged in rows in the axial direction through the center of which the core rod 18 is inserted and removably inserted. ing. The disc 19 has a tapered shape, and the taper directions of a pair of adjacent discs 19 are opposite to each other, and the large diameter end face of the adjacent disc 19 has a large diameter The side end faces are in contact with each other, and the small diameter end face of the adjacent disc 19 is in contact with the small diameter end face. One end of the core rod 18 has a circular receiving plate 2 on which the small-diameter end surface of the outer disk 19 comes into contact.
0 is fixedly provided, and a support shaft 21 is provided to protrude outward from the center of the receiving plate 20. Further, a circular receiving plate 22 is disposed on the other end side of the core rod 18, and the circular receiving plate 22 is in contact with the small diameter side end surface of the outer disk 19.
are removably attached to the core rod 18 by a plurality of bolts 23 (four in the illustrated example) equally spaced in the circumferential direction. 19 is provided between both receiving plates 20 and 22. Reference numeral 24 denotes a pair of anti-rotation rods, which are inserted and removably inserted into radially symmetrical locations of the disks 19 arranged in a row, and whose both ends are inserted into the engagement recesses 25 on the inner side of both the receiving plates 20 and 22. By being detachably engaged, rotation of the disk 19 with respect to the core rod 18 is prevented. A circular mounting plate 26 is provided on the outer surface of the receiving plate 22.
are removably attached by a plurality of bolts 27 equally spaced in the circumferential direction, and a support shaft 28 is provided to protrude outward from the center of the mounting plate 26 . Both support shafts 21 and 28 of the upper roll 15 are rotatably supported by the machine frame 6, and power is transmitted to one of the support shafts 21 and 28, thereby rotationally driving the upper roll 15.

Next, the action will be explained. When the mower conditioner 2 is towed by the tractor 1 while the mower section 7 and conditioner section 8 are being driven, the grass is cut by both cutter sections 11 of the mower section 7. is ejected backwards. The discharged grass clippings then pass between the upper and lower rolls 15 and 16 which are driven to rotate, and are further discharged to the rear. In this case, if the pressing force of the upper and lower rolls 15 and 16 is properly determined by the elastic mechanism, when the grass clippings pass between the upper and lower rolls 15 and 16, their stems will not be cut and will be bent appropriately. There is no risk that the stem will be crushed too much and the liquid component inside will flow out. Also, both rolls 15, 16
Even if a large amount of grass clippings gets in between the upper roll 1
5 is mainly composed of a large number of tapered disks 19 arranged in the axial direction, so that the disk 19 strongly presses the grass clippings between it and the lower roll 16.
The large diameter side portion of the disc 19 is suitably elastically deformed not only in the radial direction but also on the small diameter side in the axial direction. Even in the case of
5, 16 smoothly without a big impact, and both rolls 15, 16 press the grass clippings moderately.
6, the stem is bent appropriately without being cut, causing cracks in the stem, and there is a risk that the stem may be crushed and the liquid components inside it may leak out. There is no such thing. In addition, when a part of the upper roll 15 is broken or damaged, only the broken or damaged disk 19 needs to be replaced with a new one, which has the advantage of reducing maintenance costs.

FIG. 6 shows a second embodiment of the present invention, in which tapered disks 19 are arranged in a row in the axial direction with their taper directions in the same direction.

FIG. 7 shows a third embodiment of the present invention, in which the outer peripheral surface of the disk 19 is curved and convex inward in the radial direction.
Both end faces have a larger diameter than the center side. Incidentally, the disk 19 may be further divided into two parts in the axial direction as shown by imaginary lines in FIG.

FIG. 8 shows a fourth embodiment of the present invention, in which the outer circumferential surface of the disk 19 has a constant diameter except for one end in the axial direction, and the diameter of the outer circumferential surface of the disk 19 is constant as it goes outward. The protrusion 29 has a diameter that gradually increases, and the outer circumferential surface of the protrusion 29 has a curved convex shape radially inward. The disks 19 are arranged in a row in the axial direction with the protruding stripes 29 on the same side with respect to the axial direction. Note that the disks 19 may be arranged in a row so that the protrusions 29 of adjacent disks 19 are in contact with each other.

FIG. 9 shows a fifth embodiment of the present invention, in which one end in the axial direction of the outer circumferential surface of the disk 19 has a protrusion 29 having a larger diameter and a constant diameter than the other end. and,
Similar to the fourth embodiment, the discs 19 are arranged in a row in the axial direction with the protruding stripes 29 on the same side with respect to the axial direction. Note that the disks 19 may be arranged in a row so that the protrusions 29 of adjacent disks 19 are in contact with each other.

As described in detail above, in the present invention, disks made of an elastic material and having the core rods inserted through the center are arranged in the axial direction on the core rod, and a part of the outer circumferential surface of the disks is arranged. The roll for the conditioner is constructed by making the diameter larger than the other parts.If the roll of the present invention is installed in the conditioner, even if a large amount of grass clippings enters between the two rolls of the conditioner, The large-diameter side of the disk is elastically deformed not only inward in the radial direction, but also on the small-diameter side in the axial direction, and the large-diameter side of the disk escapes a large amount of grass clippings. Even in the above case, a large amount of grass clippings smoothly enters between the two rolls without a large impact, and both rolls press the grass appropriately, so that the grass clippings do not have their stems cut. It is bent and cracked appropriately, and there is no risk that the stem will be crushed too much and the liquid component inside will flow out. In addition, in the present invention, by making a part of the outer circumferential surface of the disk that mainly constitutes the roll into a large diameter shape, the outer circumferential surface of the roll is made uneven in the axial direction. Despite this, rolls can be easily manufactured at low cost. The present invention has the above advantages and is of great practical benefit.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is an overall plan view, FIG. 2 is a rear view of the same, FIG. 3 is a side view of the same, and FIG. 4 is a partial view of the main parts. A partially sectional front view, FIG. 5 is a partially exploded perspective view of the same, and FIGS. 6 to 9
Each of the figures is a front view of a main part showing each of the second to fifth embodiments of the present invention. 2...Mower conditioner, 8...Conditioner section, 15, 16...Upper and lower rolls, 18...
... Core rod, 19 ... Disk, 29 ... Protrusion portion.

Claims (1)

[Scope of Claim for Utility Model Registration] A roll for a conditioner that is rigid and is opposed to a roll having grooves formed in a spiral shape on its outer circumferential surface, the core being made of an elastic material, and the core being made of an elastic material. A roll for a conditioner, characterized in that disks inserted through the center are arranged in a row in the axial direction, and a portion of the outer peripheral surface of the disks has a larger diameter than other portions.