CN205552898U

CN205552898U - Diamond toothed bit

Info

Publication number: CN205552898U
Application number: CN201620268846.8U
Authority: CN
Inventors: 翁文彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2016-09-07
Anticipated expiration: 2026-03-31

Abstract

The utility model discloses a diamond toothed bit, including connector, circle tubular metal base member and the diamond bit who connects gradually, the surface of circle tubular metal base member is equipped with the caulking groove, has inlayed asbestos layer and indicator board in the caulking groove in proper order, and wherein the indicator board is fixed in the asbestos layer, and the asbestos layer is fixed in in the caulking groove, the indicator board is the changeable colour under environment 500 degrees centigrade about. The utility model provides a pair of diamond toothed bit can give staff's instruction when having the drill bit high temperature.

Description

A kind of diamond belt teeth drill bit

Technical field

This utility model relates to drill bit, particularly to diamond bit.

Background technology

Diamond bit is mainly used on the hard article such as pottery, glass punching, and the case hardness of these article is higher.

The local temperature of the diamond bit of high speed rotating can more than 1000 degrees Celsius, but, work at such temperature, easily make broken drill, therefore, when using drill bit, staff must the most intermittently disable drill bit, is continuing with after it disperses partial heat.If the operating experience of staff is not enough, it is easy for excessively using drill bit, is broken.

Utility model content

The purpose of this utility model is to provide a kind of diamond belt teeth drill bit, have temperature of diamond bit too high time can give staff's instruction.

Above-mentioned purpose of the present utility model technical scheme is that.

A kind of diamond belt teeth drill bit, including the union joint being sequentially connected with, circular tube shaped metallic matrix and diamond bit, the outer surface of described circular tube shaped metallic matrix is provided with caulking groove, is embedded with asbestos layer and indicator board in caulking groove successively, wherein indicator board is fixed on asbestos layer, and asbestos layer is fixed in caulking groove；

Described indicator board is changeable colour in the environment of about 500 degrees Celsius.

By using technique scheme, when the temperature of drill bit raises, staff can be pointed out by indicator board, in order to avoid staff makes broken drill because of shortcoming operating experience, wherein, asbestos board isolation circular tube shaped metallic matrix and indicator board are utilized, the temperature being transferred to indicator board can be reduced, so, indicator board can be reduced the heatproof requirement to indicator board in lower temperature generation variable color.

Indicator board is fixed by blend stop, has good fixed effect, in use without departing from circular tube shaped metallic matrix.

Preferred: described metallic matrix length is about 30mm, wall thickness is about 3mm, included that length is about the first paragraph of 5mm, length is about the second segment of 20mm successively by connector position to diamond bit and length is about the 3rd section of 5mm, wherein first paragraph, the 3rd section be hard alloy, wherein second segment includes that thickness is about the outer hard alloy layer that interior hard alloy layer, graphite linings and the thickness of 1.2mm are about 1.2mm the most successively, and wherein graphite linings is gradually increased near diamond bit thickness by near connector position.

By using technique scheme, the wall thickness of metallic matrix is arranged to about 3mm, much larger than conventional 1.5mm, so, graphite linings can be set inside metallic matrix；And metallic matrix is divided into three sections, wherein near the intensity that one section of needs of diamond bit are enough, therefore hard alloy is used, serious near the side heat production of diamond bit, it is thus desirable to thickening graphite linings, for ensureing the intensity of whole metallic matrix, near one section of employing hard alloy of union joint.

Preferred: open multiple elongated through hole along metallic matrix length direction on the surface of metallic matrix, multiple through holes are in the uniformly arrangement of metallic matrix.

By using technique scheme, use elongated through hole, both can be used as limbers, heat dispersion to be improved again

Preferred: described through hole length is about 15mm.

Preferred: being placed with multiple groove on diamond bit equably, described groove number is identical with through hole；

Multiple grooves stagger in the lateral cross section of metallic matrix equably with multiple through holes.

By using technique scheme, owing to perforate or fluting can affect the bulk strength of drill bit, therefore groove is staggered with through hole, make perforate or fluting that the impact of drill bit intensity to be reduced.

Preferred: the link position at metallic matrix Yu diamond bit is provided with multiple elongate slots along metallic matrix length direction, and multiple elongate slots are in the uniformly arrangement of metallic matrix.

By using technique scheme, due to diamond bit essence, diamond coatings is coated metal base surface and formed, therefore, for strengthening the stability after diamond coatings is fixed on metal base surface, be provided with multiple elongate slots.

Accompanying drawing explanation

Fig. 1 is the view of diamond belt teeth drill bit；

Fig. 2 is the A portion enlarged drawing in Fig. 1；

Fig. 3 is the part sectioned view of Fig. 1.

In figure, 1, union joint；2, metallic matrix；21, through hole；22, interior hard alloy layer；23, graphite linings；24, outer hard alloy layer；3, diamond bit；31, groove；32, elongate slots；4, indicator board；5, caulking groove；6, asbestos layer.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

With reference to Fig. 1, Fig. 2, a kind of diamond belt teeth drill bit, including the union joint 1 being sequentially connected with, circular tube shaped metallic matrix 2 and diamond bit 3；Open multiple elongated through hole 21 along metallic matrix 2 length direction on the surface of metallic matrix 2, multiple through holes 21 are in the uniformly arrangement of metallic matrix 2；Being placed with multiple groove 31 on diamond bit 3 equably, groove 31 number is identical with through hole 21；Multiple grooves 31 stagger in the lateral cross section of metallic matrix 2 equably with multiple through holes 21.So, use elongated through hole 21, both can be used as limbers, heat dispersion to be improved again；Further, since perforate or fluting can affect the bulk strength of drill bit, therefore groove 31 is staggered with through hole 21, make perforate or fluting that the impact of drill bit intensity to be reduced.

Referring again to Fig. 1, the link position at metallic matrix 2 with diamond bit 3 is provided with multiple elongate slots 32 along metallic matrix 2 length direction, and multiple elongate slots 32 are in the uniformly arrangement of metallic matrix 2.So, due to diamond bit 3 essence, diamond coatings is coated metallic matrix 2 surface and formed, therefore, for strengthening the stability after diamond coatings is fixed on metallic matrix 2 surface, be provided with multiple elongate slots 32.

With reference to Fig. 3, metallic matrix 2 length is about 30mm, be about the first paragraph of 5mm including length, length is about the second segment of 20mm and length is about the 3rd section (first, second, third section be mark in figs. 2 and 3) of 5mm, wherein first paragraph, the 3rd section be hard alloy, wherein second segment includes that thickness is about the outer hard alloy layer 24 that the interior hard alloy layer 22 of 1.2mm, graphite linings 23 and thickness are about 1.2mm the most successively, and wherein graphite linings 23 is gradually increased to thickness at diamond bit by near union joint 1.

So, the wall thickness of metallic matrix 2 is arranged to about 3mm, much larger than conventional 1.5mm, so, graphite linings 23 can be set inside metallic matrix 2；And metallic matrix 2 is divided into three sections, wherein near the intensity that one section of needs of diamond bit 3 are enough, therefore hard alloy is used, serious near the side heat production of diamond bit 3, it is thus desirable to thicken graphite linings 23, for ensureing the intensity of whole metallic matrix 2, near one section of employing hard alloy of union joint 1.

This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.

Claims

1. a diamond belt teeth drill bit, including the union joint (1) being sequentially connected with, circular tube shaped metallic matrix (2) and diamond bit (3), it is characterized in that the outer surface of described circular tube shaped metallic matrix (2) is provided with caulking groove (5), asbestos layer (6) and indicator board (4) it is embedded with successively in caulking groove (5), wherein indicator board (4) is fixed on asbestos layer (6), and asbestos layer (6) is fixed in caulking groove (5)；

Described indicator board (4) is changeable colour in the environment of about 500 degrees Celsius.

Diamond belt teeth drill bit the most according to claim 1, it is characterized in that described metallic matrix (2) length is about 30mm, wall thickness is about 3mm, included that length is about the first paragraph of 5mm successively by union joint (1) to diamond bit, length is about the second segment of 20mm and length is about the 3rd section of 5mm, wherein first paragraph, 3rd section is hard alloy, wherein second segment includes that thickness is about the interior hard alloy layer (22) of 1.2mm the most successively, graphite linings (23) and thickness are about the outer hard alloy layer (24) of 1.2mm, wherein graphite linings (23) is gradually increased to thickness at diamond bit by near union joint (1).

Diamond belt teeth drill bit the most according to claim 2, it is characterized in that opening multiple elongated through hole (21) along metallic matrix (2) length direction on the surface of metallic matrix (2), multiple through holes (21) are in the uniformly arrangement of metallic matrix (2).

Diamond belt teeth drill bit the most according to claim 3, it is characterised in that described through hole (21) length is about 15mm.

Diamond belt teeth drill bit the most according to claim 3, it is characterised in that be placed with multiple groove (31) on diamond bit (3) equably, described groove (31) number is identical with through hole (21)；

Multiple grooves (31) stagger in the lateral cross section of metallic matrix (2) equably with multiple through holes (21).

Diamond belt teeth drill bit the most according to claim 3, it is characterized in that being provided with multiple elongate slots (32) along metallic matrix (2) length direction at the link position of metallic matrix (2) Yu diamond bit (3), multiple elongate slots (32) are in the uniformly arrangement of metallic matrix (2).