JP3652938B2 - Diamond wire sawing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a diamond wire sawing device used for cutting concrete structures, stones and the like.
[0002]
[Prior art]
In recent years, cutting and dismantling of concrete structures using diamond wire saws (see Japanese Patent Laid-Open No. 9-41682, Japanese Patent No. 2595470) and cutting of stone materials at quarries (see Japanese Patent Laid-Open No. 6-246736) Has been done.
[0003]
As disclosed in the above publications and the like, the diamond wire saw used above is, for example, a steel wire with or without a diamond bead for cutting having a diamond abrasive grain layer, with or without an intermediate spacer such as a coil spring or resin. Are fixed at appropriate intervals.
[0004]
The diamond wire sawing device includes the diamond wire saw, a traveling drive device for the diamond wire saw, an advancing / retreating drive device for driving the traveling drive device forward and backward, and a guide pulley for causing the diamond wire saw to travel in a desired state. Configured. The traveling drive device is composed of a wire saw driving pulley around which a diamond wire saw is wound, and a prime mover such as a hydraulic motor or an electric motor that rotationally drives the wire saw driving pulley. In addition, as the advance / retreat drive device, a device provided with a drive wheel on a gantry provided with a travel drive device and moved forward and backward along the rail, a device provided with a drive pinion and moved forward and backward along the rack, and a travel drive device are further provided. A device that provides a hydraulic cylinder between the gantry and the fixed gantry and moves it back and forth along the track or guide is used as appropriate.
[0005]
[Problems to be solved by the invention]
By the way, when a concrete structure or stone material (hereinafter referred to as a structure to be cut) is cut using the above conventional diamond wire sawing device, it requires a considerable distance to advance and retreat the diamond wire saw traveling drive device. If the structure to be cut cannot be cut by a single retraction, a series of operations such as once retracting and cutting, then stopping the cutting operation, cutting the diamond wire saw to shorten the length, and then retreating and cutting again Will be repeated. In particular, when the cutting outer periphery of the structure to be cut is large and the traveling distance of the diamond wire saw traveling drive device cannot be taken, the cutting work is required several times, and the cutting work efficiency is poor. In this case, the diamond wire saw has a small length and a different outer diameter, which makes it difficult to reuse and is uneconomical.
[ 0006 ]
The present invention has been made in order to solve the above-mentioned problems, and one of the purposes is a relatively narrow cutting work site, and it is possible to cut a diamond wire saw without adjusting the length. Ru der provides a diamond wire sawing device capable of cutting the structure.
[ 0007 ]
[Means for Solving the Problems]
In order to achieve the above object, a diamond wire sawing device according to the present invention (Claim 1) includes a fixed frame, and a movable frame that can be moved forward and backward along a guide by a driving unit with respect to the fixed frame, A pair of outer guide pulleys provided in a direction intersecting the moving direction of the movable frame on the fixed frame, at least one middle guide pulley provided between the outer guide pulleys, and a wire saw drive provided on the movable frame An endless diamond wire saw wound around a pair of outer guide pulleys of the fixed frame and a wire saw driving pulley of the movable frame so as to be able to run around, and including a pulley and at least one guide pulley; between wire saw drive pulley, in at least one of opposing fixed frame Those formed by travelable the wound folded into a guide pulley of Idopuri the moving platform.
[ 0008 ]
In the above configuration, a guide pulley is attached to each of the fixed gantry provided on the structure to be cut and the movable gantry provided with the wire saw driving pulley, and the pair of outer guide pulleys of the fixed gantry and the wire saw driving pulley of the movable gantry. The endless diamond wire saw that is wound around the outer periphery of the wire can be folded between the outer guide pulley and the wire saw drive pulley to at least one of the fixed guide of the fixed base and the guide pulley of the mobile base. Unlike the case where the retraction distance of the moving gantry when cutting the structure to be cut is guided only by the outer guide pulley of the fixed gantry and travels only with the wire saw drive pulley of the moving gantry, Shorten the cutting cost of the structure to be cut and reduce the receding distance In it is larger cutting, which makes it possible to cut the object to be cut structure without a relatively narrow cutting work site at a cut to length adjustment of the diamond wire saw even.
[ 0009 ]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view of a diamond wire sawing device according to the present invention (Claims 1 to 3), and FIG. 2 is a view as viewed in the direction of arrow X in FIG. In the figure, the diamond wire sawing apparatus A is configured to include a fixed gantry 1, a movable gantry 2, and a diamond wire saw 3.
[ 0010 ]
The fixed base 1 includes a base 4, a frame 5 mounted thereon, and a slide column 6. The base 4 is configured to be fixed to a structure to be cut S or the like with an anchor or the like. The frame 5 is provided with a pair of outer guide pulleys 7 and 8 on the outer side in the longitudinal direction and a pair of middle guide pulleys 9 and 10 between the outer guide pulleys 7 and 8 on the same side of the frame 5. ing. Further, a slide 12 is provided with a rack 11 and a slider 12 to which the movable frame 2 is attached. The slider 12 can be moved forward and backward by a drive pinion 13.
[ 0011 ]
The movable base 2 is composed of a base 14 attached to the slider 12 and a frame 15 attached to the base 14 so as to face the frame 5, and the base 14 is used for circulating a diamond wire saw. A wire saw drive pulley 16 and a drive motor 17 are attached. The frame 15 is provided with a pair of guide pulleys 18 and 19 on the same side of the frame 15 in the longitudinal direction. The outer guide pulleys 7 and 8 and the middle guide pulleys 9 and 10 and the wire saw driving pulley 16 and the guide pulleys 18 and 19 are arranged so that the disk surfaces of the pulleys are located in the same plane.
[ 0012 ]
The diamond wire saw 3 is the same as that described in the section of the prior art, and details thereof are omitted. For example, a diamond bead for cutting having a diamond abrasive layer is passed through an intermediate spacer such as a coil spring or a resin or the like. In this structure, the steel wire is fixed at an appropriate interval without being interposed.
[ 0013 ]
The cutting of the structure to be cut by the diamond wire sawing apparatus having the above configuration will be described with reference to FIG.
[ 0014 ]
The base 4 of the fixed base 1 of the diamond wire sawing apparatus A is fixed and attached to the side surface of the prism-shaped structure S to be cut by the anchor, and the diamond wire saw 3 is cut to the structure S to be cut. The outer guide pulley 7, the guide pulley 18, the middle guide pulley 9, the wire saw driving pulley 16, the middle guide pulley 10, the guide pulley 19, and the outer guide pulley 8 are wound around the outer periphery of the position. After winding in this way, the wire saw driving pulley 16 and the drive pinion 13 are driven simultaneously, so that the diamond wire saw 3 is bitten and cut while being ground from the outer periphery of the predetermined cutting position of the structure S to be cut. Is called.
[ 0015 ]
In the above cutting, the diamond wire saw 3 is wound so as to be able to travel between the middle guide pulleys 9 and 10 of the fixed frame 1 and the guide pulleys 18 and 19 of the movable frame 2. The structure to be cut S can be cut at a shorter receding distance than when traveling only with the wire saw driving pulley 16 of the movable gantry 2 guided by the outer guide pulleys 7 and 8 of the fixed gantry 1. Therefore, with the diamond wire sawing apparatus A having the above-described configuration, the structure to be cut S can be cut without adjusting the length by cutting the diamond wire saw 3 even in a relatively narrow cutting work site. it can.
[ 0016 ]
In the above example, the middle guide pulleys 9 and 10 of the fixed base 1 and the two guide pulleys 18 and 19 of the movable base 2 have been described. Although the retreat distance becomes long, the above effect can be enjoyed. However, it is preferable that the even number, such as two or four, be arranged symmetrically with respect to the backward path of the wire saw driving pulley 16 because the balance of the apparatus structure is good. In the above example, the example in which the fixed base 1 is directly fixed to the structure to be cut S or the like with an anchor or the like has been described. However, even if the fixed base 1 is fixed to a base other than the structure to be cut S or the like. It is also possible to cut the structure to be cut S at a high place or a low place by attaching the fixed mount 1 to a backhoe or the like.
[ 0017 ]
【The invention's effect】
As described above, according to the diamond wire sawing device according to the present invention, the diamond wire saw includes at least one intermediate guide pulley of the fixed gantry and the guide pulley of the movable gantry between the outer guide pulley and the wire saw driving pulley. since the travelable the wound folded in, retraction distance of the moving platform is to be in a shorter retreat distance than when traveling only between the wire saw drive pulley of the mobile platform is guided by the outer guide pulley fixed frame The cutting structure can be cut, and the structure to be cut can be cut without adjusting the length by cutting the diamond wire saw even in a relatively narrow cutting work site.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a diamond wire sawing apparatus according to the present invention.
FIG. 2 is a view taken in the direction of arrow X in FIG.
FIG. 3 is an explanatory diagram of a cutting procedure of a structure to be cut by the diamond wire sawing apparatus according to the present invention, where a is the initial stage of cutting, b is in the middle of cutting, and c is the state of completion of cutting.
[Explanation of symbols]
A: Diamond wire sawing device 1: Fixed stand 2: Moving stand 3: Diamond wire saw 4: Foundation stand 5: Frame 6: Slide strut 7, 8: Outer guide pulley 9, 10: Middle guide pulley
11: Rack 12: Slider
13: Drive pinion 14: Base stand
15: Frame 16: Wire saw drive pulley
17: Drive motor 18, 19: Guide pulley S: Structure to be cut

Claims (3)

A fixed gantry, a moving gantry provided to the fixed gantry so as to be able to advance and retreat along a guide by a driving means, a pair of outer guide pulleys provided on the fixed gantry in a direction crossing a moving direction of the movable gantry, And at least one middle guide pulley provided between the outer guide pulleys, a wire saw drive pulley and at least one guide pulley provided on the movable frame, and a pair of outer guide pulleys of the fixed frame and the An endless diamond wire saw wound around a wire saw driving pulley of a movable frame so that it can circulate is arranged between at least one opposed fixed frame and a guide pulley of the movable frame between the outer guide pulley and the wire saw driven pulley. It is in the running to be able to wound folded to door Diamond wire sawing device comprising.   The guide pulley of the movable frame is disposed symmetrically in a direction perpendicular to the moving direction with the wire saw drive pulley interposed therebetween, and the same number of guide pulleys of the fixed frame as the guide pulleys of the movable frame are disposed. The diamond wire sawing device according to 1.   The diamond wire sawing device according to claim 2, wherein two guide pulleys of the movable frame are arranged.

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