CN201300492Y

CN201300492Y - Triangle gear-protecting turbine diamond round saw blade

Info

Publication number: CN201300492Y
Application number: CNU2008202276637U
Authority: CN
Inventors: 朱竞; 李春红; 李志国
Original assignee: Hebei Husqvarna Jikai Diamond Tools Co Ltd
Current assignee: Hebei Husqvarna Jikai Diamond Tools Co Ltd
Priority date: 2008-12-04
Filing date: 2008-12-04
Publication date: 2009-09-02
Anticipated expiration: 2018-12-04

Abstract

The utility model discloses a triangle gear-protecting turbine diamond round saw blade which comprises a base body (2), protective gears (3) which are sintered on the circumferential edges of the base body (2) by metal powder and diamond granules which are mixed and pressed, and a tool bit (1), wherein the protective gears (3) are a reversed triangle which is connected with the tool bit (1) into a whole, and extends to the inner portion of the base body, and both the protective gears (3) and the tool bit (1) are provided with turbine grooves which lead to the inner portion or the outer portion of the saw blade. A heat dissipating hole (4) is arranged between the two protective gears (3) on the base body (2). A circuit of reinforced ribs (5) which are evenly distributed are further arranged between the central hole of the base body (2) and the protective gears. The connection of the tool bit, the protective gears and the base body of the utility model has strong intensity, the saw blade stably rotates, and has small shaking and impact, and the saw blade base body does not contact with cut objects, thereby reducing the abrasion to the base body, reducing heat, dissipating heat in time, improving cutting speed and prolonging service life of the saw blade.

Description

A kind of triangle teeth protection type turbine diamond disc

Technical field

The utility model relates to a kind of instrument that is used to cut abrasiveness materials such as concrete, pitch, refers in particular to a kind of sintered diamond saw blade of turbine type.

Background technology

When the sintered diamond saw blade was used for the cutting of abrasiveness materials such as construction material, concrete, pitch at present, generally all away from the water source, water was very inconvenient, and therefore majority all adopts dried mode of cutting.The rotating speed of saw blade is very high during cutting, and heat-dissipating space is very little, because concrete is more much smaller than the thermal conductivity factor of metal, the heat that produces during sawing mainly distributes by air from saw bit matrix, the speed of heat radiation makes substrate temperature raise rapidly slowly, reduces the intensity of saw blade, the saw blade easy deformation.In order to reduce the too much heat that saw blade produces, prevent the saw blade distortion, need protect tooth at the cutter head of saw blade and the junction setting of saw bit matrix, can reduce saw bit matrix and the friction that is cut material like this, reduce the generation of heat.Chinese patent 200320100704.3 discloses a kind of pitch road diamond saw blade, and it comprises cutter head, protects tooth piece, matrix; Cutter head, protect the tooth piece and mix after Thermocompressed sintering and forming is welded on the matrix, protect tooth piece and cutter head and link into an integrated entity, protect the center that tooth progressively stretches to matrix by diamond particles and metal dust.The saw blade of this structure to protect tooth less, can only not contact at the matrix of the initial stage of sawing protection saw blade, but when deeply cutting, just lost effect with being cut object.Therefore Chinese patent literature 200420058832.0 provides a kind of turbine to protect the tooth diamond disc again, and its tooth that protects is divided into and longly protects tooth and shortly protect tooth, and length is protected the space of teeth and evenly distributed.But it is still thinner that it protects tooth, be difficult to guarantee that the matrix of saw blade does not contact with the cut material body, so it still can produce more heat, do not solve the frictional heat of saw blade and the problem of heat radiation fully.

The utility model content

When providing a kind of the use, the utility model technical issues that need to address produce that heat is few, the turbine sintered diamond saw blade of triangle teeth protection type that can fine heat radiation, thus the cutting performance and the service life of improving saw blade.

For solving the problems of the technologies described above, technical solution adopted in the utility model is:

A kind of triangle teeth protection type turbine diamond disc; comprise matrix, cutter head, protect tooth; cutter head and protect tooth and mix the back compacting sintering on the circumferential edges of matrix by metal dust and diamond particles; protect tooth and cutter head links into an integrated entity; protect tooth and stretch to the matrix center position by the cutter head place at saw blade edge, protecting tooth is del.

Further improvement of the utility model is: protect to be provided with on tooth and the cutter head and lead to the inner or outside turbine groove of saw blade.Matrix is provided with louvre, and louvre is two positions of protecting between the tooth.In addition, the uniform reinforcement of a circle also can be set on matrix between centre bore and the cutter head.

Owing to adopted technique scheme, the obtained technological progress of the utility model is:

The matrix that the utility model adopts cutter head, protect tooth and metal carries out integral sintered form, has increased cutter head, has protected the bonding strength of tooth and matrix.Protect tooth and be del, make saw blade in cutting process, protecting tooth is progressively to enter the cutting face; make the saw blade running steadily, reduce shake and impact, can protect matrix simultaneously; reduce to be cut contacting of object and saw bit matrix, therefore can reduce the generation of heat, minimizing is to the wearing and tearing of matrix.Protect on the matrix of centre of tooth two and to bore one or more louvres, help distribute heat; Cutter head and protect the turbine groove that is provided with on the tooth and can get rid of chip timely and effectively, prevent its to cutter head repeat grind, both improved cutting speed, can prolong the service life of saw blade again.The reasonable setting of reinforcement promptly can improve the intensity of matrix, does not influence the cutting work of cutter head again.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is an another kind of structural representation of the present utility model.

Wherein: 1, cutter head, 2, matrix, 3, protect tooth, 4, louvre, 5, reinforcement.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further details:

Embodiment 1

Present embodiment as shown in Figure 1; be a kind of triangle teeth protection type turbine diamond disc; it comprises cutter head 1, protects tooth 3 and matrix 2, and cutter head 1 links into an integrated entity with matrix behind oversintering with matrix 2 press formings after tooth 3 is mixed by metal dust and diamond particles with protecting again.Cutter head 1 and protecting on the circumferential edges that tooth 3 is positioned at matrix 2 protects tooth 3 and stretches out to the center position of matrix 2 from cutter head 1 beginning, protects tooth 3 and is del, and each protects has two to the outside turbine grooves that extend of matrix on the tooth 3.On two matrixes 2 that protect between the tooth 3, be drilled with louvre 4, at the centre bore of matrix 2 with protect and also be provided with the uniform reinforcement 5 of a circle between the tooth 3.

Embodiment 2

Present embodiment as shown in Figure 2.The difference of present embodiment and embodiment 1 is: present embodiment protect tooth 3 triangle for distortion, protect four turbine grooves that stretch to saw blade inside be set on the tooth 3, the next door of protecting tooth 3 at the triangle of distortion is drilled with four louvres 4.At the centre bore of matrix 2 with protect between the tooth 3 and reinforcement be not set.

Claims

1, a kind of triangle teeth protection type turbine diamond disc; comprise matrix (2), mix back compacting sintering protecting tooth (3) and having the cutter head (1) of turbine groove on matrix (2) circumferential edges by metal dust and diamond particles, it is characterized in that: protecting tooth (3) is the del of stretching to matrix inside that links into an integrated entity with cutter head (1).

2, a kind of triangle teeth protection type turbine diamond disc according to claim 1 is characterized in that the described tooth (3) that protects is provided with and leads to the inner or outside turbine groove of saw blade.

3, a kind of triangle teeth protection type turbine diamond disc according to claim 1 is characterized in that being positioned on the described matrix (2) two positions of protecting between the tooth (3) and is provided with louvre (4).

4, a kind of triangle teeth protection type turbine diamond disc according to claim 1 is characterized in that also being provided with on the described matrix (2) the uniform reinforcement (5) of a circle between centre bore and cutter head.