CN218912891U

CN218912891U - Subway shield constructs quick-witted tool bit structure

Info

Publication number: CN218912891U
Application number: CN202223029732.2U
Authority: CN
Inventors: 曹权
Original assignee: Suzhou Shenheng Rail Transit Technology Co ltd
Current assignee: Suzhou Shenheng Rail Transit Technology Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-04-25
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses a cutter head structure of a subway shield tunneling machine, and relates to the technical field of shield tunneling machines. The utility model comprises a cutter body, wherein a mounting hole is formed in the cutter body, a cutter head is arranged at the side end of the cutter body, the cutter head is fixedly connected with the cutter body, a plurality of cutter edge clamping grooves are formed in one side of the cutter head, clamping grooves are formed in the bottoms of the cutter edge clamping grooves, cutting edges are arranged in the cutter edge clamping grooves, a fixing buckle is arranged at the bottom of each cutter edge, the fixing buckle is opposite to the clamping groove in position, extends into the clamping groove and is clamped with the clamping groove.

Description

Subway shield constructs quick-witted tool bit structure

Technical Field

The utility model belongs to the technical field of shield machines, and particularly relates to a cutter head structure of a subway shield machine.

Background

The shield tunneling machine is a tunneling machine using a shield tunneling method, the construction method of the shield is that the tunneling machine constructs (lays) a "shield" (refer to a supporting segment) of a tunnel while tunneling, the tunneling machine is different from an open construction method, the international generalized shield tunneling machine can also be used for rock strata, the tunneling machine is different from an open (non-shield) tunneling method, the tunneling machine for soft soil strata is conventionally called a (narrow) shield tunneling machine in China, the tunneling machine for rock strata is called a (narrow) TMB, and the shield tunneling machine is generally classified into a hand tunneling shield, an extrusion shield, a semi-mechanical shield (local air pressure and global air pressure), a mechanic shield (open-chest cutting shield, a slurry pressurization shield, a soil pressure balance shield, a mixed shield and a special shield) according to the working principle.

The Chinese authorized antirust cutter head of the shield machine with the publication number of CN21374347U can perform antirust treatment on the antirust cutter head of the shield machine by adding an antirust coating, a wear-resistant coating and the like on the surface of the cutter body, can well protect the cutter head of the shield machine and prevent the cutter head of the shield machine from rusting, but the cutting edge of the conventional antirust cutter head of the shield machine cannot be replaced, and the abrasion resistance degree of the cutting edge is insufficient, so that a cutter head structure of the shield machine of the subway is provided.

Disclosure of Invention

The utility model aims to provide a cutter head structure of a subway shield tunneling machine, which solves the existing problems: the Chinese authorized anti-rust cutter head of the shield machine with the publication number of CN21374347U can well protect the cutter head of the shield machine and prevent the cutter head of the shield machine from rusting by adding an anti-rust coating, a wear-resistant coating and the like on the surface of the cutter body, but the cutting edge of the existing anti-rust cutter head of the shield machine cannot be replaced, and the wear resistance of the cutting edge is insufficient.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a subway shield tunneling machine tool bit structure which comprises a tool body, wherein a mounting hole is formed in the tool body, a tool bit is arranged at the side end of the tool body, the tool bit is fixedly connected with the tool body, a plurality of blade clamping grooves are formed in one side of the tool bit, clamping grooves are formed in the bottoms of the blade clamping grooves, blades are arranged in the blade clamping grooves, a fixing buckle is arranged at the bottom of each blade, the fixing buckle is opposite to the clamping groove in position, and the fixing buckle extends into the clamping groove and is clamped with the clamping groove.

Further, the inside material of cutting edge is wear-resisting metal, wear-resisting metal's outside is provided with high strength wear-resisting welding layer.

Further, a friction plate is arranged at the top of the blade clamping groove and fixedly connected with the blade clamping groove, a friction head is arranged on the surface of the friction plate, and the friction head abuts against the blade.

Further, the cutter body and the cutter head are made of basic steel, graphene antirust coatings are arranged on the surfaces of the cutter body and the cutter head, corrosion-resistant coatings are arranged on the surfaces of the graphene antirust coatings, and wear-resistant coatings are arranged on the surfaces of the corrosion-resistant coatings.

Further, the three blades are arranged, the three blades are rectangular trapezoids, and the sizes of the three blades are different.

Further, the number of the cutting edge clamping grooves is three, and the sizes of the three cutting edge clamping grooves are different.

Further, the three groups of the buckling grooves are two, and the sizes of the three groups of the buckling grooves are different.

The utility model has the following beneficial effects:

1. the side surface of the cutter head is provided with the cutter blade clamping groove, the bottom of the cutter blade clamping groove is provided with the clamping groove, the bottom of the cutter blade is provided with the fixed clamp, the cutter blade is fixedly connected with the fixed clamp, and the fixed clamp can be combined with the clamping groove for application, so that the cutter blade can be detached and replaced.

2. The friction plate is arranged at the top of the blade clamping groove, the friction head is arranged on the surface of the friction plate and fixedly connected with the friction plate, and the friction structure can increase the friction force between the blade and the blade, so that the blade is not easy to fall off.

3. According to the utility model, the cutter body and the cutter head are both made of basic steel, and the graphene antirust coating, the corrosion-resistant coating and the wear-resistant coating are arranged on the surface of the basic steel, so that the cutter body and the cutter head can be well protected by the coating structures, and the cutter body and the cutter head are not easy to rust and wear.

4. The blade is made of the wear-resistant alloy, and the surface of the wear-resistant alloy is provided with the wear-resistant welding layer with rigidity, so that the wear resistance of the blade is improved, and the service life of the blade is prolonged.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a left side schematic view of the present utility model;

FIG. 3 is a schematic view of a cross-sectional mechanism of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of the present utility model at A;

FIG. 5 is an enlarged schematic view of the structure of the present utility model at B;

fig. 6 is a schematic diagram of an amplifying mechanism at C of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a cutter body; 2. a cutter head; 3. a blade; 4. a mounting hole; 5. a fixing buckle; 6. a friction plate; 7. a buckle groove; 8. a friction head; 9. a graphene rust-proof coating; 10. a corrosion-resistant coating; 11. a wear-resistant coating; 12. a base steel body; 13. a blade clamping groove; 14. wear-resistant metal; 15. high-strength wear-resistant welding layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the utility model discloses a cutter head structure of a subway shield tunneling machine, which comprises a cutter body 1, wherein a mounting hole 4 is formed in the cutter body 1, a cutter head 2 is arranged at the side end of the cutter body 1, the cutter head 2 is fixedly connected with the cutter body 1, a plurality of cutter blade clamping grooves 13 are formed in one side of the cutter head 2, clamping grooves 7 are formed in the bottoms of the plurality of cutter blade clamping grooves 13, a cutter blade 3 is arranged in the plurality of cutter blade clamping grooves 13, a fixing buckle 5 is arranged at the bottom of the cutter blade 3, a cutter blade clamping groove 13 is formed in the side surface of the cutter head 2, a clamping groove 7 is formed in the bottom of the cutter blade 13, a fixing buckle 5 is fixedly connected with the cutter blade 3, the fixing buckle 5 can be combined with the clamping groove 7 for application, the cutter blade 3 can be detached and replaced, the fixing buckle 5 is opposite to the clamping groove 7 in position, the fixing buckle 5 extends into the clamping groove 7 and is clamped with the clamping groove 7, the inside of the blade 3 is made of wear-resistant metal 14, the surface of the wear-resistant metal 14 is provided with a high-strength wear-resistant welding layer 15, so that the wear resistance of the blade 3 is increased, the service life of the blade 3 is prolonged, the outside of the wear-resistant metal 14 is provided with the high-strength wear-resistant welding layer 15, the top of the blade clamping groove 13 is provided with a friction plate 6, the surface of the friction plate 6 is provided with a friction head 8, the friction head 8 is fixedly connected with the friction plate 6, the friction structure is arranged, the friction force of the blade 3 and the blade 2 can be increased, the blade 3 is not easy to fall off, the friction plate 6 is fixedly connected with the blade clamping groove 13, the surface of the friction plate 6 is provided with a friction head 8, the friction head 8 is propped against the blade 3, the materials of the blade body 1 and the blade 2 are all basic steel bodies 12, according to the utility model, the cutter body 1 and the cutter head 2 are both made of a base steel body 12, the graphene antirust coating 9, the corrosion-resistant coating 10 and the wear-resistant coating 11 are arranged on the surface of the base steel body 12, the cutter body 1 and the cutter head 2 can be well protected by the coating structures, the cutter body 1 and the cutter head 2 are not easy to rust and wear, the graphene antirust coating 9 is arranged on the surface of the cutter body 1 and the cutter head 2, the corrosion-resistant coating 10 is arranged on the surface of the graphene antirust coating 9, the wear-resistant coating 11 is arranged on the surface of the corrosion-resistant coating 10, three blades 3 are rectangular solids with right-angle trapezoids, the three blades 3 are different in size, three blade clamping grooves 13 are different in size, three groups of clamping grooves 7 are arranged, two groups of clamping grooves 7 are different in size, and three groups of clamping grooves 7 are different in size.

One specific application of this embodiment is: the cutter body 1 is provided with the mounting hole 4, so that the cutter is conveniently mounted on a shield tunneling machine, one side of the cutter head 2 is provided with the cutter blade clamping groove 13, the bottom of the cutter blade clamping groove 13 is provided with the clamping groove 7, the inside of the cutter blade clamping groove 13 is provided with the cutter blade 3, the bottom of the cutter blade 3 is provided with the fixed clamping buckle 5, the fixed clamping buckle 5 can extend into the clamping groove 7, the fixed clamping buckle 5 is clamped with the clamping groove 7, and the cutter blade 3 can be inserted into the cutter blade clamping groove 13 from one side of the cutter head 2 by utilizing the fixed clamping buckle 5 at the bottom and is clamped with the cutter blade clamping groove 13.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides a subway shield constructs quick-witted tool bit structure, includes cutter body (1), its characterized in that: the utility model discloses a cutter, including cutter body (1), cutter head (2) and cutter body (1) fixed connection, a plurality of cutting edge draw-in groove (13) have been seted up to one side of cutter head (2), a plurality of buckle groove (7) have all been seted up to the bottom of cutting edge draw-in groove (13), a plurality of all be provided with cutting edge (3) in cutting edge draw-in groove (13), the bottom of cutting edge (3) is provided with fixed buckle (5), fixed buckle (5) are relative with buckle groove (7) position, fixed buckle (5) extend to in buckle groove (7) and with buckle groove (7) joint.

2. The subway shield tunneling machine cutter head structure according to claim 1, wherein: the inside material of cutting edge (3) is wear-resisting metal (14), the outside of wear-resisting metal (14) is provided with high strength wear-resisting welding layer (15).

3. The subway shield tunneling machine cutter head structure according to claim 1, wherein: the top of cutting edge draw-in groove (13) is provided with friction plate (6), friction plate (6) and cutting edge draw-in groove (13) fixed connection, the surface of friction plate (6) is provided with friction head (8), friction head (8) offsets with cutting edge (3).

4. The subway shield tunneling machine cutter head structure according to claim 1, wherein: the novel cutter comprises a cutter body (1) and a cutter head (2), wherein the cutter body (1) and the cutter head (2) are made of basic steel (12), graphene antirust coatings (9) are arranged on the surfaces of the cutter body (1) and the cutter head (2), corrosion-resistant coatings (10) are arranged on the surfaces of the graphene antirust coatings (9), and wear-resistant coatings (11) are arranged on the surfaces of the corrosion-resistant coatings (10).

5. The subway shield tunneling machine cutter head structure according to claim 1, wherein: the three blades (3) are arranged, the three blades (3) are rectangular trapezoids, and the sizes of the three blades (3) are different.

6. The subway shield tunneling machine cutter head structure according to claim 1, wherein: the number of the cutting edge clamping grooves (13) is three, and the sizes of the three cutting edge clamping grooves (13) are different.

7. The subway shield tunneling machine cutter head structure according to claim 1, wherein: the three groups of the buckling grooves (7) are respectively two, and the three groups of the buckling grooves (7) are different in size.