Corrosion-resistant shield tail brush with polymer coating

Abstract

The utility model relates to the technical field of shield tunneling machines, in particular to a corrosion-resistant shield tail brush with a polymer coating. The utility model discloses a steel wire brush assembly, which comprises a bottom plate, a lower bending plate, a steel wire brush group, an upper bending plate assembly and a cover plate which are laminated in this way, both the lower bending plate and the upper bending plate assembly tilt towards one side opposite to the bottom plate, the bottom plate and the cover plate are fixed through a plurality of connecting pieces, and both the lower bending plate and the upper bending plate assembly are coated with a layer of anti-corrosion polymer coating. The utility model has the beneficial effects that according to the technical scheme, the lower bending plate and the upper bending plate assembly are respectively coated with an anti-corrosion polymer coating, so that the plates are prevented from being corroded, the service life of the whole bending plate is prolonged, the efficiency is greatly improved, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machines, in particular to a corrosion-resistant shield tail brush with a polymer coating. Background Art

[0002] The shield machine, whose full name is shield tunnel boring machine, is a special engineering machinery for tunnel excavation. Modern shield tunnel boring machines integrate optical, mechanical, electrical, hydraulic, sensor and information technology. They have the functions of excavating and cutting soil and rock, conveying soil and ballast, assembling tunnel lining, measuring and guiding deviation correction, etc. They involve multiple disciplines and technologies such as geology, civil engineering, machinery, mechanics, hydraulics, electricity, control, and measurement. Moreover, they must be designed and manufactured in a "tailor-made" manner according to different geology, and the reliability requirements are extremely high. Shield tunnel boring machines have been widely used in tunnel projects such as subways, railways, highways, municipal administration, and hydropower.

[0003] The shield tail brush is a component that prevents mud and water from seeping into the tail of the shield machine. There are generally two types: steel plate brush and wire brush. Among them, the wire brush is a shield tail brush with a mesh-shaped main sealing part formed by folding many wavy steel wires. After the wire brush is injected with grease, the grease will be adsorbed in the steel wire network. During operation, the oil will form an oil seal between the wire brush and the inner wall of the shield machine, thus preventing liquid from entering the shield machine. The composite shield tail brush is a shield tail brush form that combines the advantages of wire brushes and steel plate brushes. It is a natural electrolyte with strong corrosiveness. The ocean area accounts for about 71% of the total area of ​​the earth.

[0004] In the prior art, the shield tail brush needs to be placed in seawater for use. However, seawater is a large amount in nature and contains a large amount of salts, mainly sodium chloride, and a large amount of oxygen. Therefore, the plate surface of the shield tail brush is constantly eroded by seawater, causing surface corrosion, which affects its service life.

[0005] Therefore, it is necessary to design a corrosion-resistant shield tail brush with a polymer coating to solve the above problems. Summary of the invention

[0006] The purpose of the utility model is to provide a corrosion-resistant shield tail brush with a polymer coating to overcome the above-mentioned shortcomings of the current prior art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A corrosion-resistant shield tail brush with a polymer coating, which includes a stacked base plate, a lower bending plate, a wire brush group, an upper bending plate assembly and a cover plate. The lower bending plate and the upper bending plate assembly are both tilted toward the side away from the base plate, and the base plate and the cover plate are fixed by a plurality of connecting parts. It is characterized in that: the lower bending plate and the upper bending plate assembly are both coated with a layer of anti-corrosion polymer coating.

[0009] Preferably, the upper bending plate assembly includes a left inner protection plate, a right inner protection plate, and an outer front protection plate which are arranged in sequence from the inside to the outside.

[0010] Preferably, the left inner protection plate, the right inner protection plate, and the outer front protection plate are single-layer or multi-layer plates.

[0011] Preferably, the left inner protective plate and the right inner protective plate are respectively arranged alternately on the left and the right inner protective plate, and the staggered end parts of the left inner protective plate and the right inner protective plate overlap each other, and the outer front protective plate is placed in front of the left inner protective plate and the right inner protective plate, and in the middle of the left inner protective plate and the right inner protective plate.

[0012] The beneficial effect of the utility model is that the technical solution coats a layer of anti-corrosion polymer coating on the lower bending plate and the upper bending plate assembly to prevent the plates from being corroded, increase the overall working life, greatly improve efficiency and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a utility model of a corrosion-resistant shield tail brush with a polymer coating;

[0014] Figure 2 This is a schematic diagram of the structure of an upper bending plate assembly of a corrosion-resistant shield tail brush with a polymer coating in the utility model;

[0015] In the figure: 1, bottom plate; 2, lower bending plate; 3, wire brush assembly; 4, upper bending plate assembly; 5, cover plate; 6, connecting piece; 41, left inner protection plate; 42, right inner protection plate; 43, outer front protection plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0018] Reference Figure 1 and2 A corrosion-resistant shield tail brush with a polymer coating, comprising a bottom plate 1, a lower bending plate 2, a wire brush assembly 3, an upper bending plate assembly 4 and a cover plate 5 stacked thereon, the lower bending plate 2 and the upper bending plate assembly 4 are both tilted toward the side facing away from the bottom plate 1, and the bottom plate 1 and the cover plate 5 are fixed by a plurality of connectors 6;

[0019] The lower bending plate 2 and the upper bending plate assembly 4 are both coated with a layer of anti-corrosion polymer coating; a layer of polymer coating is applied to the lower bending plate 2 and the upper bending plate assembly 4 to isolate the plate surface from contact with seawater or oxygen, thereby playing an anti-corrosion role; and the polymer coating contains some acid-resistant and alkali-resistant materials and corrosion-resistant materials;

[0020] The upper bending plate assembly 4 includes a left inner protective plate 41, a right inner protective plate 42, and an outer front protective plate 43 which are arranged in sequence from the inside to the outside. The left inner protective plate 41 and the right inner protective plate 42 are respectively staggered left and right, and the staggered end portions of the left inner protective plate 41 and the right inner protective plate 42 overlap each other. The outer front protective plate 43 is placed in front of the left inner protective plate 41 and the right inner protective plate 42, and in the middle of the left inner protective plate 41 and the right inner protective plate 42.

[0021] The left inner protection plate 41, the right inner protection plate 42, and the outer front protection plate 43 are single-layer or multi-layer plates, which are specifically arranged according to geological construction conditions.

[0022] The benefit of the utility model is that the technical solution coats a layer of anti-corrosion polymer coating on the lower bending plate and the upper bending plate assembly to prevent the plates from being corroded, increase the overall working life, greatly improve efficiency and save costs.

[0023] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and inventive concept of the utility model, which should be covered by the protection scope of the utility model.

Claims

1. A corrosion-resistant shield tail brush with a polymer coating, comprising a bottom plate, a lower bending plate, a wire brush assembly, an upper bending plate assembly and a cover plate laminated thereon, wherein the lower bending plate and the upper bending plate assembly are both tilted toward the side facing away from the bottom plate, and the bottom plate and the cover plate are fixed by a plurality of connectors, characterized in that: The lower bending plate and the upper bending plate assembly are both coated with a layer of anti-corrosion polymer coating.

2. The corrosion-resistant shield tail brush with polymer coating according to claim 1, characterized in that: The upper bending plate assembly comprises a left inner protection plate, a right inner protection plate, and an outer front protection plate which are arranged in sequence from the inside to the outside.

3. The corrosion-resistant shield tail brush with polymer coating according to claim 2 is characterized in that: The left inner protection plate, the right inner protection plate, and the outer front protection plate are single-layer or multi-layer plates.

4. The corrosion-resistant shield tail brush with polymer coating according to claim 3 is characterized in that: The left inner protective plate and the right inner protective plate are respectively arranged alternately on the left and right, and the staggered end parts of the left inner protective plate and the right inner protective plate overlap each other, and the outer front protective plate is placed in front of the left inner protective plate and the right inner protective plate, and is located in the middle of the left inner protective plate and the right inner protective plate.

Images