A tail brush for a shield

Abstract

The utility model relates to a shield tail brush, sponge is arranged in the shell, and the shell is filled up, the gasbag is connected to the sponge in the shell through the grease injection pipe, the fastening bolt penetrates the shell, and the upper and lower ends are respectively through the nut and resist the upper and lower ends of shell, and the oil is filled in the sponge through the gasbag and grease injection pipe, and the upper and lower ends of shell are resisted by screwing the nut, and the oil in the sponge is extruded and enters the steel wire brush lubrication between upper baffle and lower baffle, the device sets up the sponge in the shell, and the oil is transported in the sponge through the grease injection pipe by the gasbag, and the oil in the sponge is extruded and sent into the steel wire brush lubrication by the cooperation extrusion shell of fastening bolt and nut, and the manual operation mode is replaced more convenient and fast, and the gasbag can be taken down and add oil in the case of insufficient oil, guaranteeing the sufficiency of oil, not affecting normal construction.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine equipment technology, specifically to a shield tail brush. Background Technology

[0002] With the continuous acceleration of urbanization in my country, the demand for urban pipeline construction is increasing, and the shield tunneling method has been increasingly widely used due to its advantages such as safety, speed, and convenience.

[0003] During tunnel boring machine (TBM) construction, the tail brush can form a sealing system between the TBM shell and the assembled segment rings, preventing groundwater, soil, sand, mud, and grout from entering the tunnel from the tail gap, thus ensuring the cleanliness and safety of the tunnel environment.

[0004] There are two main types of shield tail brushes: steel plate brushes and steel wire brushes. Among them, steel wire brushes are widely used due to their ease of lubrication. Currently, shield tail brushes are lubricated manually by applying oil to the steel wire brushes, which is inefficient. When the grease in the steel wire brush of the shield tail brush is insufficient, it is necessary to replenish or replace the shield tail brush in a timely manner, which is cumbersome and affects construction efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a shield tail brush to solve the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a shield tail brush, including a shell, an upper baffle and a lower baffle, a wire brush is provided between the upper baffle and the lower baffle, and also includes a sponge, fastening bolts, an airbag and a grease injection tube;

[0007] The sponge is placed inside the outer shell to fill it completely;

[0008] The airbag is filled with grease and connected to a sponge inside the outer shell via a grease injection tube.

[0009] Fastening bolts penetrate the outer casing, and nuts are used to tighten the upper and lower ends of the outer casing, respectively.

[0010] Grease is filled into the sponge through the air bladder and grease injection tube. The nuts are tightened to press against the upper and lower ends of the outer shell, squeezing the grease out of the sponge and into the wire brush between the upper and lower baffles for lubrication.

[0011] As a further technical solution to the above solution, mounting blocks are provided at the top and bottom of the inner wall of the outer shell, and an anti-bending spring is provided between the two mounting blocks.

[0012] As a further technical solution of the above solution, the grease injection tube is set horizontally, and multiple grease injection holes are provided on the side wall of the grease injection tube.

[0013] As a further technical solution to the above solution, the fastening bolts are provided in multiple sets.

[0014] As a further technical solution to the above solution, the phrase "a wire brush is provided between the upper baffle and the lower baffle" is replaced with "a corrugated wire bundle is provided between the upper baffle and the lower baffle".

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: The device has a sponge inside the shell, and uses an airbag to deliver grease into the sponge through a grease injection tube. By tightening the shell with bolts and nuts, the grease in the sponge is squeezed and sent into the wire brush for lubrication, which is more convenient and faster than manual operation. Moreover, when the grease is insufficient, the airbag can be removed at any time to add grease, ensuring sufficient grease and not affecting normal construction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this device.

[0017] Figure 2 This is a schematic diagram of the internal structure of the outer shell.

[0018] The labels in the diagram are as follows: outer shell - 1; upper baffle - 2; lower baffle - 3; sponge - 4; fastening bolt - 5; airbag - 6; grease injection tube - 7; nut - 8; mounting block - 9; bending spring - 10; corrugated steel wire bundle - 11. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0020] like Figure 1-2 As shown, a shield tail brush includes a shell 1, an upper baffle 2 and a lower baffle 3, with a wire brush provided between the upper baffle 2 and the lower baffle 3, and also includes a sponge 4, a fastening bolt 5, an airbag 6 and a grease injection tube 7.

[0021] Sponge 4 is placed inside the outer shell 1 to fill the outer shell 1 completely;

[0022] The airbag 6 is filled with grease and is connected to the sponge 4 inside the outer shell 1 through the grease injection tube 7;

[0023] Fastening bolt 5 penetrates the outer casing 1, and nuts 8 are used to tighten the upper and lower ends of the outer casing 1 respectively;

[0024] The sponge 4 is filled with grease through the airbag 6 and the grease injection tube 7. The nut 8 is tightened to press against the upper and lower ends of the outer shell 1, and the grease in the sponge 4 is squeezed into the wire brush between the upper baffle 2 and the lower baffle 3 for lubrication.

[0025] When using this device, the outer shell 1 is filled with sponge 4. By squeezing the air bladder 6, the grease in the air bladder 6 is injected into the outer shell 1 through the grease injection tube 7. The grease is absorbed by the sponge 4. When it is necessary to lubricate the wire brush, tighten the fastening bolt 5 by tightening the nut 8. The nut 8 squeezes the upper and lower sides of the outer shell 1. The outer shell 1 is under pressure and squeezes the sponge 4 inside the outer shell 1. The grease in the sponge 4 is squeezed into the wire brush between the upper baffle 2 and the lower baffle 3 to lubricate the wire brush. Using the above method to replace manual oiling is more convenient and faster, ensuring the normal use of the shield tail brush. If the grease is insufficient, the air bladder 1 can be removed at any time to add grease to ensure sufficient grease to meet the construction requirements.

[0026] like Figure 2 As shown in the preferred embodiment, mounting blocks 9 are provided at the top and bottom of the inner wall of the outer shell 1, and an anti-bending spring 10 is provided between the two mounting blocks 9. In this embodiment, the mounting blocks 9 are set as the mounting base for the anti-bending spring 10. When the outer shell 1 is compressed, the anti-bending spring 10 is compressed by force. Due to the action of the anti-bending spring 10, the compression of the outer shell 1 is slowed down, so that the upper and lower side plates of the outer shell 1 slowly and evenly squeeze the sponge 4. The grease in the sponge 4 is squeezed into the wire brush more slowly and evenly, and the wire brushes transfer the grease to each other to make the grease evenly distributed.

[0027] like Figure 2 As shown, in a preferred embodiment, the grease injection tube 7 is horizontally arranged, and multiple grease injection holes are provided on the side wall of the grease injection tube 7. In this embodiment, the grease injection tube 7 is inserted into the side wall of the housing, and the grease is injected simultaneously through multiple grease injection holes during the transportation process of the grease injection tube 7, which improves the efficiency of grease injection and makes the grease injection more uniform.

[0028] like Figure 1 As shown, in a preferred embodiment, multiple sets of fastening bolts 5 are provided. In this embodiment, multiple fastening bolts 5 are provided, and during the compression process, multiple fastening bolts 5 compress simultaneously, and multiple force points make the process of the outer shell 1 compressing the sponge 4 more uniform.

[0029] like Figure 1As shown, in a preferred embodiment, the "wire brush between the upper baffle 2 and the lower baffle 3" is replaced with a corrugated wire bundle 11 between the upper baffle 2 and the lower baffle 3. In this embodiment, the wire brush in the prior art is replaced with a corrugated wire bundle 11. The corrugated wire bundle 11 is formed by layers of corrugated wires. Traditional wire bundles are composed of long strips of wire, which can easily lead to uneven distribution of grease when applying oil. The improved corrugated wires have a larger contact area with the grease, allowing for the transfer of grease during compression. Even when the layers of corrugated wire bundle 11 are damaged, the next layer of wires still functions, avoiding the loss of sealing after the traditional wire bundle is damaged.

[0030] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0031] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A shield tail brush, comprising a housing (1), an upper baffle (2) and a lower baffle (3), wherein a wire brush is provided between the upper baffle (2) and the lower baffle (3), characterized in that: It also includes a sponge (4), fastening bolts (5), an airbag (6), and a grease injection tube (7); Sponge (4) is placed inside the outer shell (1) to fill the outer shell (1); The airbag (6) is filled with grease and is connected to the sponge (4) inside the outer shell (1) through the grease injection tube (7). The fastening bolt (5) penetrates the outer shell (1), and the upper and lower ends are respectively secured to the upper and lower ends of the outer shell (1) by nuts (8); Grease is filled into the sponge (4) through the airbag (6) and grease injection tube (7), and the nut (8) is tightened to press against the upper and lower ends of the outer shell (1), squeezing the grease in the sponge (4) into the wire brush for lubrication.

2. A shield tail brush as described in claim 1, characterized in that: The inner wall of the outer shell (1) is provided with mounting blocks (9) at the top and bottom of the inner wall, and an anti-bending spring (10) is provided between the two mounting blocks (9).

3. A shield tail brush as described in claim 1, characterized in that: The grease injection tube (7) is horizontally arranged, and multiple grease injection holes are provided on the side wall of the grease injection tube (7).

4. A shield tail brush as described in claim 1, characterized in that: The fastening bolts (5) are provided in multiple sets.

5. A shield tail brush as described in claim 1, characterized in that: Replace "a wire brush is provided between the upper baffle (2) and the lower baffle (3)" with: "a corrugated wire bundle (11) is provided between the upper baffle (2) and the lower baffle (3)".

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