JP2002154045A - Disk cutter with internal gear and cutting device for disk cutter with internal gear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To largely increase a cutting depth of a disk cutter. SOLUTION: A concentric internal gear is mounted on the disk cutter. The disk cutter provided with the internal gear is engaged with a pinion gear, and is supported by a plurality of members of the pinion gear, a two-flange rollers and a pressure roller.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cutter with an internal gear used for an electric cutter, an engine cutter or a circular saw, etc., and a cutting device for a disk cutter with an internal gear for rotating the disk cutter to cut an object. is there.

[0002]

2. Description of the Related Art Conventionally, a disc cutter includes a diamond disc cutter and a circular saw blade. These are disk-shaped, and the center of the circle is fixed to the output shaft of a cutting machine, and this is rotated to cut an object. The power for rotating the disc cutter may be any of electric, engine, hydraulic motor and air motor.

[0003]

In the prior art, a cutting depth of only about one third of the diameter of the disk cutter could be obtained. The reason why the cutting depth is limited is that the flange for fixing the disk cutter to the rotating shaft of the cutting machine and the housing of the cutting machine main body around the rotating shaft come into contact with the object to be cut.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a disk cutter with an internal gear, wherein the disk cutter has a concentric internal gear, and a concentric internal gear. Is provided, a pinion gear is meshed with an internal gear of the disk cutter, and the pinion gear is linked to a power transmission link, and the pinion gear and the two pieces are attached to a blade cover joined to a cutting machine body. A flange roller and a pressure roller are attached, and the pinion gear, a two-flange roller and a pressure roller support the disk cutter at several points. is there.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. In FIG. 1 or FIG. 2, (1) is a disk cutter with an internal gear. The disk cutter has a concentric hole having a size of about 65% of a diameter (a donut shape). An internal gear (2) was formed around the hole. (3) is a pinion gear. The pinion gear has a gear integrated pulley (4) on one side.
(5) is a drive pulley, which is fixed to an output shaft (7) projecting from the cutting machine body (6). The gear integrated pulley (4) and the drive pulley (5) are linked by a belt (8) of a power transmission link. Here, the power transmission link is not limited to such a bending transmission link, but may be a mechanism using gear transmission or chain transmission. (9) is a two-flange roller having a gap groove (10) between the two flanges. The gap groove (10) is a gap groove that can sandwich the disc cutter with internal gear (1) with a loose and tight gap. The valley of the gap and the internal gear of the disk cutter with internal gear (1) are formed. 2) Rolling contact with the tip. (11) is a pressure roller, the cutting edge (12) of the disk cutter (1) with an internal gear.
Rolling contact with the tip. Pressure roller (1
1) is installed three as shown, and each is connected with a connecting rod (1).
3). The connecting rod (13) moves in conjunction with the screw-type feeding mechanism (14). A blade cover (15) supports the pinion gear (3) and the two-flange roller (9) on the blade cover (15), and is screwed with a screw-type feeding mechanism (14). The screw type delivery mechanism (14) and the connecting rod (13) are screwed together. Since the pressure roller (11) comes into contact with the blade, the material of the roller surface is appropriately selected. Embodiments include urethane rubber and hard rubber. The diamond blade cuts well on hard ones, but it is hard to stand on soft ones, and the rollers play a role as pressure because the rollers roll together with the rotation of the blades. In addition, (16) is a dust suction passage provided alongside the blade cover (15).

Thus, the disk cutter (1) with the internal gear is provided with a rolling contact or a meshing contact at the six points of the two-flange roller (9), the pinion gear (3) and the pressure roller (11), thereby forming a gear with the gear. Hold the disk cutter (1). These rollers and pinion gears take a fulcrum at the blade cover (15) which is joined to the cutting machine body (6), and a pressure roller (11) makes a fulcrum at the blade cover (15) via a feeding mechanism (14). I am taking. These fulcrums serve as reaction force fulcrums opposing the force applied to the cutting edge, and can grip the disk cutter (1) with the internal gear. The pinion gear (3) meshes with the internal gear (2) of the disk cutter with internal gear (1) gripped in this manner. The rotation output of the driving pulley (5) travels along the belt (8) to rotate the gear integrated pulley (4). The pulley is integrated with the pinion gear (3), and the rotation of the gear is transmitted to the meshing of the internal gear (2) to rotate the disk cutter (1) with the internal gear. The pressure roller (11) is protruded and moved by tightening the screw-type feeding mechanism (14). By the protrusion, the holding state of the disk cutter (1) with the internal gear is adjusted. The gap groove (10) of the two-flange roller (9) plays a role of a guide for holding the rotation trajectory of the disk cutter (1) with the internal gear.

As described above, the disk cutter with internal gear (1) is supported at several points by a pinion gear, a two-flange roller and a pressure roller as shown in FIG. The cutting machine main body housing, the blade cover, and the rollers, which hinder the securing of the cutting depth, can be arranged in the area of the right half circle from the center. As a result, not only the entire area of the left semicircle from the center of the disk cutter with gears (1) but also the area of the right side of the semicircle until it comes into contact with the blade cover can be used for cutting.

According to the present invention, one third of the conventional cutting depth is two-thirds (twice that of the conventional product) to three-fifths (1.
8 times). Since the effective cutting depth can be greatly increased, a disk cutter (1) with an internal gear having a smaller diameter than a conventional disk cutter is sufficient. Further, the disk cutter (1) with the internal gear has a donut shape, and the ratio of the frictional heat generation area can be reduced. During cutting, the disk cutter is cut into the object to be cut, but at this time, high-temperature dust or frictional heat stays in the gap between the two, and the blade may be damaged by heat. The disk cutter (1) with the internal gear has a donut shape, and a gap for promoting heat radiation is created.

[0009]

The effective cutting depth becomes extremely large. A disk cutter smaller in diameter than before can be used for conventional work. Lightening and cutting work are facilitated. An adverse effect on the cutter blade due to frictional heat can be reduced, and the life of the blade can be extended. Heat dissipation and dust emission are promoted, and cutting efficiency is dramatically improved.

[Brief description of the drawings]

FIG. 1 is a side view of a cutting device for a disk cutter with an internal gear.

FIG. 2 is a perspective view of a cutting device for a disk cutter with an internal gear.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc cutter with internal gear 2 Internal gear 3 Pinion gear 4 Gear pulley 5 Drive pulley 6 Cutting machine main body 7 Output shaft 8 Belt 9 Two flange rollers 10 Gap groove 11 Pressure roller 12 Blade tip 13 Connecting rod 14 Sending out mechanism 15 Blade cover 16 Dust suction passage

Claims (2)

[Claims] 1. A disk cutter with an internal gear, wherein a concentric internal gear is formed on the disk cutter. 2. A disk cutter in which a concentric internal gear is formed, a pinion gear is meshed with the internal gear of the disk cutter, and the pinion gear is linked to a power transmission link and is joined to a cutting machine body. Attach the pinion gear, two-flange roller and pressure roller to the blade cover, these pinion gear,
A cutting device for a disk cutter with an internal gear, wherein the disk cutter is supported at several points by two flange rollers and a pressure roller.