JP3036493U - Diamond wire saw - Google Patents

Abstract

(57) [Summary] [Purpose] The diamond wire saw itself is provided with cooling water feeding means, and the cooling water supplied from the outside of the cut object is fed to the end along the diamond wire saw cut inside the cut object. To do so. [Structure] Diamond beads 4 obtained by sintering diamond abrasive grains 5 together with various metal powders are bonded to a core metal 3, and the core metal 3 is pressure-bonded to the outer circumference of a steel wire rope 2 at predetermined intervals in the longitudinal direction, In the diamond wire saw in which the coating 6 made of synthetic resin, rubber or the like is applied to the outer circumference of the steel wire rope 2 between the diamond beads 4 and 4, the concave groove 7 is formed along the longitudinal direction of the outer circumference of the coating 6.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a diamond wire saw in which cooling water supplied from the outside of an object to be cut is sent to the end along a diamond wire saw cut inside the object to be cut.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, a diamond wire saw method has been known as a method for performing large-section cutting or underwater cutting of large concrete structures such as dams, bridges, and buildings.

This diamond wire saw 30 will be described with reference to FIG. 5. A core metal 32 is crimped to the outer periphery of a long steel wire rope 31 twisted together at a predetermined interval in the longitudinal direction, Diamond beads 33 are bonded to the outer circumference of each core 32. The diamond beads 33 are formed by sintering diamond abrasive grains 34 together with various metal powders to form a short tubular shape.

A coating 35 made of synthetic resin or the like is provided between the diamond beads 33 on the outer circumference of the steel wire rope 31.

To use such a diamond wire saw 30, for example, as shown in FIG. 6, an annular diamond wire saw 30 is fed and moved by a driving device 36 in a certain direction, and the driving device 36 itself is moved. It is configured to run. Then, the diamond wire saw 30 is wound around the object to be cut 37 in an annular shape, and the driving device 36 is moved in the direction of the arrow to exert a tension on the diamond wire saw 30. The object 37 to be cut is cut by the cutting effect.

In FIG. 6, by moving the drive device 36 in the direction of the arrow, the diamond wire saw 30 having a predetermined length is cut into the object 37 to be cut, so that the diamond wire saw 30 is completely cut. Leads to.

[0007]

[Problems to be solved by the device]

 By the way, in such a conventional diamond wire saw 30, during the cutting operation, chips such as concrete, stone or iron are generated depending on the material of the object to be cut 37, and the chips are attached to the surface of the diamond beads 33. However, there has been a problem that the cutting ability and the life span are significantly reduced.

Further, there is a problem in that the feeding movement of the diamond wire saw 30 causes abrasion heat to be generated on the object to be cut 37 such as concrete.

In order to solve such a problem, conventionally, a cooling water 38 is sprinkled from a feed side end of the diamond wire saw 30 with a hose or the like to wash away the chips adhering to the outer periphery of the diamond wire saw 30. However, since the diamond wire saw 30 itself does not have a means for feeding the cooling water 38, the cooling water 38 does not reach a long distance, and the cutting chips 39 are extremely hard at the cutting end in the feeding direction. There was a situation where it spouted out with force.

As described above, the diamond wire saw is effective in cutting a large stone material or a concrete structure containing iron material, but on the other hand, the larger the cut object is, the more the cooling water is cut off. There was a problem that it was difficult to feed the diamond wire saw into the cut object to a distant place along the diamond wire saw.

The present invention has been made in view of the above circumstances, and the diamond wire saw itself is provided with a cooling water feeding means so that the cooling water supplied from the outside of the object to be cut is supplied to the inside of the object to be cut. It is an object of the present invention to provide a diamond wire saw that is fed to the end along the diamond wire saw cut in.

[0012]

[Means for Solving the Problems]

 In order to solve the above problems, the diamond wire saw of the present invention uses diamond beads obtained by sintering diamond abrasive grains together with various kinds of metal powder on a core metal, and the core metal is attached to the outer circumference of a steel wire rope. A diamond wire saw with a wire made of synthetic resin or rubber applied to the outer circumference of the steel wire rope between the diamond beads by crimping at a specified interval in the longitudinal direction. To form a groove.

Further, the concave groove is preferably a spiral groove formed along the longitudinal direction of the steel wire rope.

[0014]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a vertical sectional view of a diamond wire saw according to the present invention. FIG. 2 is a side view of the diamond wire saw according to the present invention. FIG. 3 is a cross-sectional view of a diamond wire saw according to the present invention. FIG. 4 is a side view showing a linear groove in the present invention.

As shown in FIG. 1, the diamond wire saw 1 of the present embodiment has a steel cored bar 3 pressed at a predetermined interval in the longitudinal direction of the outer circumference of a long steel wire rope 2 twisted together. The diamond beads 4 are joined to the outer circumference of each core metal 3. The diamond beads 4 are obtained by sintering diamond abrasive grains 5 together with various metal powders to form a short tubular shape.

Further, the outer circumference of the steel wire rope 2 is covered with a coating 6 made of synthetic resin or rubber between the diamond beads 4 and 4 to protect the steel wire rope 2 and fix the diamond beads 4. I'm trying to help.

In the present invention, one or a plurality of recessed grooves 7 are formed along the longitudinal direction on the outer circumference of each coating 6 between the diamond beads 4 and 4.

However, in the present embodiment, as shown in FIG. 3, three grooves are formed in each groove between the diamond beads 4 and 4. It is desirable to provide such recessed grooves 7 as deeply as possible and to provide a large number of them, but there is also a demand for securing the strength of the coating 6 and the adhesive force to the steel wire rope 2, and it should be decided in relation to this. is there.

The concave groove 7 may have a linear shape as shown by 7'in FIG. 4, but as shown in FIG. 2, it has a spiral shape formed along the longitudinal direction of the steel wire rope 2. Preferably. By doing so, the concave groove per unit length can be increased, and the concave groove 7 exists over the entire circumference of the coating 6.

When the object 6 to be cut is cut by the diamond wire saw 1, the diamond wire saw 1 is pre-twisted and moved so that the diamond beads 4 are evenly worn. By this, each diamond bead 4 cuts the object to be cut while rotating spirally in the twisting direction and advancing in the feeding direction. When the concave groove 7 is spirally formed as described above, The spiral groove 7 itself also advances while rotating spirally, and the chips generated on the outer periphery of the diamond bead 4 can be accommodated in the groove 7 without leaving.

As described above, by forming the concave groove 7 along the longitudinal direction on the outer periphery of the coating 6 between the respective diamond beads 4 and 4, water is accumulated in the concave groove 7 of each coating 6, The chips adhering to the minute pool become muddy and are transferred in the feed direction.

Then, outside the object to be cut, water chips ejected from a hose or the like are used to wash away the chips accumulated in each groove 7, and in this state, the chips are sent again into the object to be cut and moved. Becomes

[0024]

[Effect of the invention]

 As described above, since the diamond wire saw of the present invention is provided with the elongated groove along the longitudinal direction of the outer circumference of each coating between the diamond beads, the diamond wire saw is supplied to the outside of the object to be cut. While the collected water is stored in this groove, the chips adhere to it to form a muddy shape, and these muddy chips accumulate in each groove to allow the diamond wire saw to cut into the inside of the object to be cut. Can be transported to a distant place.

As a result, it is possible to dispose of the cutting chips during cutting in each groove and prevent the generation of wear heat, which is useful for improving the cutting ability and the life span.

Further, by forming the concave groove in a spiral shape, a space for the concave groove per unit length can be increased, and since the concave groove exists over the entire circumference of the coating, the diamond can be formed. When the wire saw is pre-twisted and transferred, the spiral groove itself also advances in a spiral shape, and if chips generated on the outer circumference of the diamond beads remain, they can be housed in the groove without rolling. It will be possible.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a diamond wire saw according to the present invention.

FIG. 2 is a side view of a diamond wire saw according to the present invention.

FIG. 3 is a cross-sectional view of a diamond wire saw according to the present invention.

FIG. 4 is a side view showing a linear groove in the present invention.

FIG. 5 is a vertical cross-sectional view of a conventional diamond wire saw.

FIG. 6 is a schematic view showing an example of a usage state of a diamond wire saw.

[Description of sign]

 1 ... Diamond wire saw 2 ... Steel wire rope 3 ... Core metal 4 ... Diamond beads 5 ... Diamond abrasive grains 6 ... Coating 7 ... Concave groove

Claims (2)

[Utility model registration claims] 1. Diamond beads obtained by sintering diamond abrasive grains together with various metal powders are bonded to a cored bar, and the cored bar is pressure-bonded to the outer circumference of a steel wire rope at predetermined intervals in the longitudinal direction to obtain each diamond bead. A diamond wire saw having a coating made of synthetic resin, rubber, or the like on the outer circumference of the steel wire rope in between, wherein a groove is formed along the longitudinal direction of the outer circumference of the coating. 2. The diamond wire saw according to claim 1, wherein the concave groove is a spiral groove formed along a longitudinal direction of the steel wire rope.