CN218669354U

CN218669354U - Shovel-shaped cutting tooth for heading machine

Info

Publication number: CN218669354U
Application number: CN202222827111.2U
Authority: CN
Inventors: 毕胜春; 毕德玉; 张委铭; 毕德新; 戴明君
Original assignee: Haicheng Pailou Town Hongqi Magnesite Mine Co ltd
Current assignee: Haicheng Pailou Town Hongqi Magnesite Mine Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-21
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a shovel type pick for entry driving machine, including shovel type pick body, the surface of shovel type pick body is provided with the enhancement layer, the enhancement layer includes antirust coat, corrosion resistant layer and wearing layer, the surface of enhancement layer is provided with the inoxidizing coating, the inoxidizing coating includes insulating layer, high temperature resistant layer and enhancement layer, the wearing layer is located the surface on corrosion resistant layer, corrosion resistant layer is located the surface of antirust coat, and the insulating layer is located the surface on high temperature resistant layer, and high temperature resistant layer is located the surface of enhancement layer. The utility model discloses a shovel type pick body, enhancement layer, antirust coat, corrosion resistant coating, wearing layer, inoxidizing coating, insulating layer, high temperature resistant layer and the cooperation of enhancement layer are used, can effectual wear-resisting, corrosion-resistant and the heat-proof quality that improves shovel type pick body, improve the life of shovel type pick body, and the surface of having solved the pick does not set up the inoxidizing coating, leads to the relatively poor problem of wearability and corrosion resistance of pick.

Description

Shovel-shaped cutting tooth for heading machine

Technical Field

The utility model relates to a entry driving machine technical field specifically is a shovel type pick for entry driving machine.

Background

The heading machine is a machine for cutting a roadway on a flat ground, and has multiple types: the method is divided into a common machine and a tunnel boring machine according to operation objects, and is divided into an open type boring machine and a shield type boring machine according to operation modes, wherein the operation modes are as follows: the cutting head in the working mechanism continuously crushes rocks and transports the crushed rocks away along with the forward propulsion of the travelling mechanism, so that the cutting head has the advantages of safety, high efficiency, good tunneling quality and the like, but the cutting head is high in manufacturing cost, complex in structure and high in loss, and the shovel-type cutting teeth are important components of the development machine;

the patent number is CN103603663A and discloses a novel wear-resisting pickaxe type cutting pick for entry driving machine, including integrative tooth head and tooth body, the tooth body top is the toper, and the lateral surface evenly distributed at tooth body top has a plurality of axial recess, installs axial alloy strengthening rib and welding in the axial recess. The invention not only can efficiently complete related coal mining operation, but also can play a better role in impact resistance, greatly reduces the abrasion of the pick body and simultaneously prolongs the service life of the cutting pick;

the novel wear-resistant pickaxe-type cutting pick for the heading machine has the following problems in use, and a protective layer is not arranged on the surface of the cutting pick in use, so that the cutting pick is poor in wear resistance and corrosion resistance.

Disclosure of Invention

An object of the utility model is to provide a shovel type pick for entry driving machine possesses wear-resisting and good advantage of corrosion resistance, has solved the surface of pick and has not set up the inoxidizing coating, leads to the relatively poor problem of wear resistance and corrosion resistance of pick.

In order to achieve the above object, the utility model provides a following technical scheme: the shovel-type cutting tooth for the heading machine comprises a shovel-type cutting tooth body, wherein a reinforcing layer is arranged on the outer surface of the shovel-type cutting tooth body and comprises an anti-rust layer, a corrosion-resistant layer and a wear-resistant layer, a protective layer is arranged on the outer surface of the reinforcing layer, and the protective layer comprises a thermal insulation layer, a high temperature-resistant layer and a reinforcing layer.

Preferably, the wear-resistant layer is positioned on the outer surface of the corrosion-resistant layer, and the corrosion-resistant layer is positioned on the outer surface of the anti-rust layer.

Preferably, the heat insulation layer is positioned on the outer surface of the high temperature resistant layer, and the high temperature resistant layer is positioned on the outer surface of the reinforcing layer.

Preferably, the antirust layer is made of epoxy zinc-rich primer, and the corrosion-resistant layer is made of epoxy resin coating.

Preferably, the material of the wear-resistant layer is wear-resistant ceramic paint, and the thickness of the wear-resistant layer is ten to twenty millimeters.

Preferably, the material of the heat insulation layer is heat insulation paint, and the material of the high temperature resistant layer is high temperature resistant insulating material.

Preferably, the material of the reinforcing layer is tungsten-cobalt alloy, and the thickness of the reinforcing layer is five to eight millimeters.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a shovel type pick body, enhancement layer, antirust coat, corrosion resistant coating, wearing layer, inoxidizing coating, insulating layer, high temperature resistant layer and the cooperation of enhancement layer are used, can effectual wear-resisting, corrosion-resistant and the heat-proof quality that improves shovel type pick body, improve the life of shovel type pick body, and the surface of having solved the pick does not set up the inoxidizing coating, leads to the relatively poor problem of wearability and corrosion resistance of pick.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the shovel-shaped cutting pick body of the present invention;

fig. 3 is a schematic view of the structure of the enhancement layer of the present invention;

fig. 4 is a schematic view of the protective layer of the present invention.

In the figure: 1. a spade-type cutting pick body; 2. an enhancement layer; 21. a rust-proof layer; 22. a corrosion-resistant layer; 23. a wear resistant layer; 3. a protective layer; 31. a thermal insulation layer; 32. a high temperature resistant layer; 33. and a reinforcing layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, a shovel-type cutting pick for a heading machine includes a shovel-type cutting pick body 1, a reinforcing layer 2 is disposed on an outer surface of the shovel-type cutting pick body 1, the reinforcing layer 2 includes an anti-rust layer 21, an anti-corrosion layer 22 and a wear-resistant layer 23, a protective layer 3 is disposed on an outer surface of the reinforcing layer 2, and the protective layer 3 includes a thermal insulation layer 31, a high temperature resistant layer 32 and a reinforcing layer 33.

The wear-resistant layer 23 is positioned on the outer surface of the corrosion-resistant layer 22, and the corrosion-resistant layer 22 is positioned on the outer surface of the anti-rust layer 21;

the heat insulation layer 31 is positioned on the outer surface of the high temperature resistant layer 32, and the high temperature resistant layer 32 is positioned on the outer surface of the reinforcing layer 33;

the antirust layer 21 is made of epoxy zinc-rich primer, and the corrosion-resistant layer 22 is made of epoxy resin coating;

by arranging the anti-rust layer 21, the epoxy zinc-rich primer has the characteristics of quick natural drying, strong adhesive force, strong anti-rust performance and the like, and by arranging the corrosion-resistant layer 22, the epoxy resin coating has strong adhesive force, excellent mechanical performance and excellent corrosion resistance.

The wear-resistant layer 23 is made of wear-resistant ceramic paint, and the thickness of the wear-resistant layer 23 is ten to twenty millimeters;

by arranging the wear-resistant layer 23, the wear-resistant ceramic coating has the advantages of insulation, high temperature resistance, good mechanical property, very good adhesion with metal, very hardness, very high mechanical strength and rigidity, and excellent toughness and shock resistance.

The heat insulation layer 31 is made of heat insulation coating, and the high temperature resistant layer 32 is made of high temperature resistant insulating material;

through setting up insulating layer 31, the insulating coating has thermal-insulated, waterproof, rust-resistant and corrosion resistance's advantage, and through setting up high temperature resistant layer 32, high temperature resistant insulating material has high temperature resistant, excellent mechanical properties, wearability, insulating properties and weather resistance good characteristics.

The material of the reinforcing layer 33 is tungsten-cobalt alloy, and the thickness of the reinforcing layer 33 is five to eight millimeters;

by arranging the reinforcing layer 33, the tungsten-cobalt alloy has the advantages of high hardness, high bending strength, high compressive strength and good impact toughness.

When the coating is used, the epoxy zinc-rich primer has the characteristics of quick natural drying, strong adhesive force, strong antirust performance and the like through the antirust layer 21, the epoxy resin coating has extremely strong adhesive force, excellent mechanical performance and excellent corrosion resistance through the corrosion-resistant layer 22, the wear-resistant ceramic coating has the advantages of insulation, high temperature resistance, good mechanical performance, very good adhesive force with metal, very hard property, extremely high mechanical strength and rigidity, and excellent toughness and shock resistance through the wear-resistant layer 23, the heat-insulating coating has the advantages of good heat insulation, water resistance, rust resistance and corrosion resistance through the heat-resistant layer 31, the high-temperature-resistant insulating material has the characteristics of high temperature resistance, excellent mechanical performance, wear resistance, insulating performance and weather resistance through the high-temperature-resistant layer 32, and the tungsten-cobalt alloy has the advantages of high hardness, high bending strength, high compressive strength and good impact toughness through the reinforcing layer 33.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shovel type pick for entry driving machine, includes shovel type pick body (1), its characterized in that: the external surface of the shovel-shaped cutting pick body (1) is provided with a reinforcing layer (2), the reinforcing layer (2) comprises an anti-rust layer (21), an anti-corrosion layer (22) and a wear-resistant layer (23), the external surface of the reinforcing layer (2) is provided with a protective layer (3), and the protective layer (3) comprises a heat-insulating layer (31), a high-temperature-resistant layer (32) and a reinforcing layer (33).

2. The shovel-type cutting pick for a heading machine according to claim 1, wherein: the wear-resistant layer (23) is positioned on the outer surface of the corrosion-resistant layer (22), and the corrosion-resistant layer (22) is positioned on the outer surface of the anti-rust layer (21).

3. The shovel-type cutting pick for a heading machine according to claim 1, wherein: the heat insulation layer (31) is positioned on the outer surface of the high-temperature resistant layer (32), and the high-temperature resistant layer (32) is positioned on the outer surface of the reinforcing layer (33).

4. The shovel-type cutting pick for a heading machine according to claim 1, wherein: the antirust layer (21) is made of epoxy zinc-rich primer, and the corrosion-resistant layer (22) is made of epoxy resin coating.

5. The shovel-type cutting pick for a heading machine according to claim 1, wherein: the wear-resistant layer (23) is made of wear-resistant ceramic paint, and the thickness of the wear-resistant layer (23) is ten to twenty millimeters.

6. The shovel-type cutting pick for a heading machine according to claim 1, wherein: the heat insulation layer (31) is made of heat insulation coating, and the high temperature resistant layer (32) is made of high temperature resistant insulating material.

7. The shovel-type cutting pick for a heading machine according to claim 1, wherein: the material of the reinforcing layer (33) is tungsten-cobalt alloy, and the thickness of the reinforcing layer (33) is five to eight millimeters.