CN218985289U

CN218985289U - Cutting bit and gang saw

Info

Publication number: CN218985289U
Application number: CN202221791087.5U
Authority: CN
Inventors: 杨和芳; 徐丰; 周晶; 梁熙; 杨辉芳
Original assignee: Jiangxi Sulun Teshi High Tech Material Co ltd
Current assignee: Jiangxi Sulun Teshi High Tech Material Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2023-05-09
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a cutting tool bit, which comprises a tool bit base body and a cutting unit arranged on the tool bit base body, wherein an auxiliary supporting part is arranged at one side of the bottom of the cutting unit so as to assist in limiting the toppling of the cutting unit; the cutting unit comprises a wear structure piece, wherein the cutting blades are used for forming chip removal channels, the wear structure piece is arranged between two adjacent cutting blades, and the hardness of the wear structure piece is lower than that of the cutting blades. Correspondingly, a gang saw adopting the cutter head is also disclosed. By adopting the utility model, the cutting efficiency is high and the service life is long.

Description

Cutting bit and gang saw

Technical Field

The utility model relates to the technical field of cutting equipment, in particular to a cutter head and a gang saw.

Background

In the application of cutting rock materials, fine particles are generated in the process that a cut object is cut by a cutter head, and the cut particles can be discharged out of a cutting surface after a period of time in the subsequent cutting, so that the cut particles can be repeatedly crushed by the cutter head, unnecessary abrasion of the cutter head is increased, and meanwhile, the cutting performance of the cutter head is reduced.

Moreover, the existing tool bits are welded on the saw blade main body one by one in a welding mode, so that the existing tool bits are generally larger and thicker for convenient welding so as to obtain a larger welding area, avoid toppling over in the welding process, correspondingly limit the minimum cutting width of the gang saw and influence the cutting efficiency and the use cost.

Disclosure of Invention

The utility model aims to solve the technical problems of providing a cutting tool bit which is high in cutting efficiency and long in service life.

The utility model aims to solve the technical problem of providing a gang saw with high cutting efficiency.

In order to solve the technical problems, the utility model provides a cutter head, which comprises a cutter head base body and a cutting unit arranged on the cutter head base body, wherein an auxiliary supporting part is arranged at one side of the bottom of the cutting unit so as to assist in limiting the toppling of the cutting unit;

the cutting unit comprises a wear structure piece, wherein the cutting blades are used for forming chip removal channels, the wear structure piece is arranged between two adjacent cutting blades, and the hardness of the wear structure piece is lower than that of the cutting blades.

As an improvement of the above-mentioned scheme, the projections of the cutting edges of two adjacent cutting units on the vertical plane are in the same straight line and continuous with respect to the vertical plane of the cutting direction.

As an improvement of the scheme, 2 cutting units are arranged on the cutter head base body, and the two cutting units and the auxiliary supporting part of the two cutting units are diagonally arranged.

As an improvement of the above scheme, the cutting unit is of an integrated structure.

As an improvement of the above scheme, the cutting blade is a diamond blade.

As an improvement of the above, the wear structure sheet is a graphite sheet or other metal sheet having a hardness less than that of the cutting blade.

As an improvement of the above scheme, the cutting unit and the auxiliary supporting part are of an integrated structure.

As an improvement of the above, the sum of the thicknesses of the cutting unit and the auxiliary supporting portion is 2mm to 4mm.

The gang saw comprises the tool bit and a saw blade main body used for being welded and fixed with the tool bit, wherein a plurality of tool bits are arranged on the saw blade main body along the sawing direction.

As an improvement of the scheme, the projections of the cutting edges of two adjacent cutter heads on the vertical surface are in the same straight line and continuous relative to the vertical surface of the sawing direction.

The implementation of the utility model has the following beneficial effects:

the utility model discloses a cutting tool bit, which comprises a tool bit base body and a cutting unit arranged on the tool bit base body, wherein an auxiliary supporting part is arranged at one side of the bottom of the cutting unit so as to reduce the integral gravity center of the tool bit, so that the cutting unit and the tool bit base body are not easy to topple over when being welded, and the cutting unit is convenient for manual processing, thereby improving the production efficiency.

Moreover, the cutting unit comprises a wear structure piece for forming a chip removal channel by the cutting blades, the wear structure piece is arranged between two adjacent cutting blades, the hardness of the wear structure piece is lower than that of the cutting blades, so that the wear structure piece is worn before the cutting blades in the cutting process, the cutting surface of the cutting unit is in a wavy shape in the cutting process, namely the number of cutting edges of the cutting unit is increased, the cutting performance is improved, and fine particles at the cut-off position are firstly extruded to the wear structure piece, so that unnecessary wear of the cutting blades is prevented from being aggravated.

Correspondingly, the utility model also provides a gang saw that adopts above-mentioned cutting tool bit, and cutting efficiency is high, is difficult for collapsing the sword.

Drawings

FIG. 1 is a schematic view of the structure of a cutting bit of the present utility model;

FIG. 2 is a schematic view of another angle of the cutting bit of the present utility model

FIG. 3 is a schematic view of the structure of the cutting unit and auxiliary support of the present utility model;

FIG. 4 is a schematic view of the gang saw of the present utility model;

fig. 5 is a schematic view of another angle of the gang saw of the utility model.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

Referring to fig. 1, 2 and 3, the present utility model provides a cutting bit, comprising a bit base 1 and a cutting unit 2 provided on the bit base 1, wherein an auxiliary supporting portion 3 is provided at one side of the bottom of the cutting unit 2 to assist in restricting the tilting of the cutting unit 2;

the cutting unit 2 comprises a wear structure piece 22 for forming a chip removing channel by the cutting blades 21, wherein the wear structure piece 22 is arranged between two adjacent cutting blades 21, and the hardness of the wear structure piece 22 is lower than that of the cutting blades 21.

Specifically, in order to ensure the cutting performance of the cutting bit, the projections of the cutting edges of two adjacent cutting units 2 on the vertical plane are in the same straight line and continuous relative to the vertical plane of the cutting direction, so that the cutting bit is in the cutting track, a cutting gap is avoided, and the cut object at the gap is not cut.

Preferably, the cutter head base 1 is provided with 2 cutting units 2, and both the two cutting units 2 and the auxiliary supporting portion 3 thereof are diagonally arranged to form a "field" shaped structure. In this way, the dimension width of the bit base body 1 can be narrowed as much as possible, so that the entire width of the bit base body 1 is equal to the sum of the thicknesses of the cutting unit 2 and the auxiliary supporting portion 3. Compared with the existing cutting tool bit with the same size, based on the fact that the cutting unit 2 is relatively thin, the cutting tool bit can achieve the effect of the same cutting width, cutting sharpness is higher, and cutting efficiency is higher.

Moreover, the body of the cutting unit 2 is basically composed of the cutting blade 21 and the wear structural piece 22, the cutting blade 21 is thinner and sharper, and the hardness of the wear structural piece 22 is lower than that of the main cutter head body 1, so that the wear structural piece can be quickly worn away in the cutting process, and a chip removing channel is formed to discharge the broken particles generated in the cutting, so that the probability that the cutting blade 21 is broken by the broken particles is reduced. Preferably, the cutting blade 21 is a diamond blade and the wear structural piece 22 is a graphite piece.

More preferably, since the cutting unit 2 has a multi-layered sheet structure, an integrated structure can be formed by sintering. The core cutting blade 21 has weak lateral impact strength, and if the diamond blade is excessively exposed and loses the support of the wear structural sheet 22, the probability of breakage of the cutting blade 21 is relatively increased, thereby reducing the average service life. The wear plate 22 may be selected from a metal plate having a hardness less than that of the cutting blade 21 to avoid excessive wear rate differences between the fragile structure 22 and the cutting blade 21.

On the other hand, the structure of the cutting blade 21 may be adopted for the auxiliary supporting portion 3 so that the basic cutting performance can be maintained even when the cutting unit 2 is worn to the position of the auxiliary supporting portion 3.

Compared with the conventional cutter head, the cutter head has larger thickness and mainly takes a trapezoid structure, namely the cutter head is wider at the upper part and narrower at the lower part, so that the welding is convenient. For the present embodiment, the sum of the thicknesses of the cutting unit 2 and the auxiliary supporting portion 3 is 2mm to 4mm. Because the thickness of the cutting unit 2 is smaller, the cutting unit is difficult to stand alone, the auxiliary supporting portion 3 can assist the cutting unit 2 to stand up, and the welding area with the cutter head base body 1 can be increased, so that the welding is firmer.

Preferably, the cutting unit 2 and the auxiliary supporting part 3 are an integrated structure, which can be formed by sintering.

Referring to fig. 4 and 5, the utility model also discloses a gang saw, which comprises a cutting head 4 and a saw blade main body 5 for being welded and fixed with the cutting head, wherein the saw blade main body 5 is provided with a plurality of the cutting heads 4 along the sawing direction.

And the projections of the cutting edges of two adjacent cutting heads on the vertical surface are in the same straight line and are continuous relative to the vertical surface of the sawing direction.

The structure of the cutter head 4 is the same as that shown in fig. 1, 2 and 3, and will not be described in detail here.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.

Claims

1. The cutting tool bit is characterized by comprising a tool bit base body and a cutting unit arranged on the tool bit base body, wherein an auxiliary supporting part is arranged at one side of the bottom of the cutting unit so as to assist in limiting the toppling of the cutting unit;

2. A cutting head according to claim 1, wherein the cutting edges of two adjacent cutting units are co-linear and continuous in projection on a vertical plane with respect to the vertical plane of the cutting direction.

3. The cutting bit according to claim 1 or 2, wherein 2 cutting units are provided on the bit body, and both the cutting units and their auxiliary support portions are diagonally arranged.

4. The cutting bit of claim 1, wherein the cutting unit is of unitary construction.

5. The cutting bit of claim 1, wherein the cutting blade is a diamond blade.

6. The cutting bit of claim 1, wherein the wear feature is a graphite sheet or other sheet of metal having a hardness less than the cutting blade.

7. The cutting bit of claim 1, 5 or 6, wherein the cutting unit and auxiliary support are of unitary construction.

8. The cutter head of claim 7, wherein the sum of the thicknesses of the cutting unit and the auxiliary support portion is 2mm-4mm.

9. Gang saw characterized by comprising a cutting head according to any of claims 1-8 and a saw blade body for welded fastening with the cutting head, which saw blade body is provided with a plurality of the cutting heads in the sawing direction.

10. Gang saw as defined in claim 9, characterized in that, with respect to the vertical plane of the sawing direction, the projections of the cutting edges of two adjacent cutting heads on this vertical plane are collinear and continuous.