CN201030620Y

CN201030620Y - Porous matrix and narrow block compound structure vibration-damping noise reduction diamond circular saw blade

Info

Publication number: CN201030620Y
Application number: CNU2006201492409U
Authority: CN
Inventors: 胡映宁; 王成勇; 胡珊珊; 王小纯; 陈邦道
Original assignee: Guangxi University
Current assignee: Guangxi University
Priority date: 2006-09-26
Filing date: 2006-09-26
Publication date: 2008-03-05
Anticipated expiration: 2016-09-26

Abstract

A porous matrix and a vibration damping noise reducing diamond circular saw bit with a narrow-blocked compound structure of the utility model are phi350 mm laser welding saw bits, which comprises a 30 CrMo steel body and a iron based joint block embedded with a diamond granule. Noise reducing air cooling holes 4 with 6 mm diameter are evenly arranged on the body of the saw bits according to a plurality of curves. A narrow shallow groove 1 and a broad deep groove 2 are arranged on the circle of the body. The iron based joint block 3 is 21 mm in length, 2 mm in thickness, and 7 mm in height, and has 48 blocks. The diamond circular saw bit is achieved by welding the joint blocks on the external periphery of the steel body. The utility model increases cooling routs by adopting heat dissipating grooves and noise reducing holes, improves the continuity and steadiness of the cutting process, and reduces the librations, noise and heat distortion, therefore the force situation, the service life and the processing quality of the saw bits are improved.

Description

The vibration and noise reducing diamond disc of porous matrix and narrow joint piece composite construction

Technical field

The utility model is about diamond saw blade, particularly about the noise reduction vibration damping diamond disc of nonmetal crisp and hard materials such as dry type cutting stone material and concrete.

Background technology

Diamond disc is widely used in the metal and the processing of nonmetal crisp and hard material of industries such as machinery and building, comprises the cutting of hard brittle materials such as stone material and concrete.As the conventional structure of this saw blade, as shown in Figure 2.The excircle of the thin discoid matrix 3 of entity be spacedly distributed tank and etc. arc length joint piece.There is the soldered joint method being connected of joint piece and matrix, the laser weld bonding method, or after saving piece and matrix cold moudling sintering.

Common diamond disc is generally 24 joint pieces, 24 road tanks.In fact the working condition of saw blade has comprised complicated cycle dynamic loading, thermal stress, fluid dynamic (air stream, cooling fluid stream, talus glacier) and heat transfer process, thereby can produce strong periodic vibration and harsh noise, strong periodic vibration is to saw blade generation alternate load repeatedly, the service life and the sawing crudy of saw blade have been weakened greatly, produced simultaneously noise intensity is usually above 100 decibels, in this high noise environments, work for a long time, easily cause noise deafness, feel sick, various relevant diseases such as dizziness.Therefore, come vibration and noise reducing to become very important important step in the diamond disc design by improving saw-blade structure.

Summary of the invention

The diamond saw blade of matrix adopting loose structure, the utilization aerodynamic principle, by some groups of apertures that on matrix, distribute regularly, the local reinforcement transmission of noise in matrix that cuts off the sawing generation, reduce the thermal deformation of saw blade simultaneously by the air-flow cooling effect of aperture, thereby reached the effect that reduces noise and saw blade air cooling.

Adopt close tooth diamond saw blade, by on matrix, having increased by 24 road tanks, thereby increased the cooling duct, reduced the thermal deformation of saw blade.Narrow tank has improved the continuity and the stationarity of sawing process simultaneously.

In conjunction with the advantage of above two kinds of saw-blade structures, adopt the diamond disc (see figure 1) of porous matrix and narrow joint piece composite construction, the sawing evidence can reach obvious raising sawing stationarity and the effect that reduces noise.

The technical scheme that the utility model technical solution problem is adopted is: on the basis of conventional structure saw blade by on saw bit matrix, having narrow shallow-water tank (1), wide bendway (2) and aperture (4); The joint number of blocks of saw blade is 48 and is evenly arranged on the circumference simultaneously.

Outstanding effect of the present utility model is: heat dissipation water tank and noise reduction small structure have increased the cooling duct, improve the continuity and the stationarity of working angles, reduce vibration, noise and thermal deformation in the sawing process.Obviously improve the stress of saw blade thus, improved the life-span and the crudy of saw blade.

Description of drawings

Fig. 1 is the schematic diagram of the utility model saw-blade structure.

Fig. 2 is the schematic diagram of conventional saw-blade structure.

The specific embodiment

As shown in Figure 1, diamond saw blade of the present utility model is a Φ 350mm laser weld saw blade, is made up of 30CrMo steel matrix and impregnated iron-based matrix joint piece by diamond particles.Wherein have narrow shallow-water tank 1 on the matrix, wide bendway 2 and aperture 4.The degree of depth of narrow shallow-water tank 1 is 15mm, and width is 1.6mm, and the degree of depth of wide bendway 2 is 20mm, and width is 2mm, and the diameter of aperture 4 is 6mm, and hole count is 72.The length of iron-based matrix joint piece 3 is 21mm, and thickness is 3mm, highly is 7mm, and joint piece number is 48.

Preparation method of the present invention is: hot pressed sintering iron-based matrix joint piece, on common Φ 350mm steel saw blade matrix, bore the aperture of Φ 6 by some sets of curves rules, at last with 48 joint pieces with laser weld on the neighboring of steel matrix, get final product diamond saw blade.

Claims

1. the vibration and noise reducing diamond disc of a porous matrix and narrow joint piece composite construction is characterized in that: saw bit matrix has aperture and width, tank that the degree of depth is different, and the joint number of blocks of saw blade is 48.

2. according to the vibration and noise reducing diamond disc of right 1 described porous matrix and narrow joint piece composite construction, its feature comprises: have narrow shallow-water tank (1) on the saw bit matrix, wide bendway (2) and aperture (4), the degree of depth of narrow shallow-water tank (1) is 15mm, width is 1.6mm, and the degree of depth of wide bendway (2) is 20mm, and width is 2mm, the diameter of aperture (4) is 6mm, and hole count is 72.

3. according to the vibration and noise reducing diamond disc of right 1 described porous matrix and narrow joint piece composite construction, its feature comprises: the length of iron-based matrix joint piece (3) is 21mm, and thickness is 3mm, highly is 7mm,