Structure of low noise saw and low noise diamond sawc

A diamond saw, low-noise technology, applied in the direction of sawing machine tools, metal processing equipment, metal sawing equipment, etc., can solve the problems of chipping, limiting cutting depth, and increasing the overall quality of the saw

Inactive Publication Date: 2009-01-28
KOREA INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the damper has a large mass, the overall mass of the saw increases
Also, since there is a gap between the metal plate and the damper, the metal plate may chip when collidi

Method used

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  • Structure of low noise saw and low noise diamond sawc
  • Structure of low noise saw and low noise diamond sawc
  • Structure of low noise saw and low noise diamond sawc

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0027] The present invention provides a saw structure capable of reducing noise generated during cutting operations by installing a damper on a part of a base body.

[0028] image 3 It is a cross-sectional view showing the principle of vibration absorption of the low-noise saw 1 according to the present invention. A hole is formed in the metal plate 10, and a damper 20 in the form of a rivet is inserted into the hole. Here, the vibration absorption capacity depends on the thickness of the metal plate contacting the damper (t 1 ) And the internal distance of the damper (t 2 ) Becomes different.

[0029] In the present invention, a damper in the form of a rivet (2 mm head thickness, 15 mm diameter) is installed on a metal plate (2 mm thickness, 100 mm lateral length, 100 mm longitudinal length), and according to the gap (t 2 -t 1 ) To measure the vibration absorption capacity. in Figure 4 The medium vibration absorption capacity is shown as the specific damping capacity (SDC), th...

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PUM

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Abstract

Disclosed is a diamond saw capable of reducing noise by installing a damper for absorbing vibration in a shank. The low noise diamond saw comprises: a shank formed of a circular metallic plate; and a diamond blade bonded to an outer circumferential surface of the shank, in which a damper is partially bonded to one or both of upper and lower surfaces of the shank by a spot welding. Said one or both of the upper and lower surfaces of the shank may be provided with recesses having a thickness enough for an uppermost portion of the damper not to be higher than an uppermost portion of the diamond blade According to another embodiment of the present invention, a low noise diamond saw comprises: a shank formed of a circular metallic plate; and a diamond blade bonded to an outer circumferential surface of the shank, in which a plurality of recesses having a predetermined depth are formed in upper an d lower surfaces of the shank in correspondence with each other in a circumferential direction, a hole having a diameter smaller than that of the recess is formed in the recess, and a damper is mounted in the hole so that a clearance may not be generated between a surface of the recess and a surface of the damper. In the diamond saw, noise is reduced as the number of the dampers is increased.

Description

Technical field [0001] The present invention relates to a structure of a low-noise saw, and more particularly, to a diamond saw and saw for cutting wood, metal, etc., capable of reducing noise generated during cutting operations. Background technique [0002] Such as figure 1 As shown, the diamond saw used to cut stones, concrete, asphalt, etc. when constructing buildings or roads includes a diamond blade which is bonded to the outer periphery of a disc-shaped substrate formed of cold-rolled carbon steel. [0003] When cutting stones or concrete with a diamond saw, severe noise is generated due to the vibration of the substrate. Therefore, it is mandatory to use low-noise diamond saws in Korea. In developed countries, low-noise diamond saws are commonly used on construction sites. [0004] Such as figure 2 As shown, the base of the low-noise diamond saw has a sandwich structure, in which a thin copper plate is inserted between two carbon steel plates and then spot welded. There...

Claims

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Application Information

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IPC IPC(8): B23D61/02B23D61/00
Inventor 池光救金允培韩濬铉韩承熙
Owner KOREA INST OF SCI & TECH
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