CN217129532U - Convenient shield tail brush of changing - Google Patents

Abstract

The utility model discloses a shield tail brush convenient to replace, which comprises a mounting seat (1), wherein one end of the mounting seat (1) is provided with a convex connecting table (2), and the connecting table (2) is provided with a counter bore (4) used for being connected with a shield tail (3) and a threaded hole (6) used for being connected with a duct piece (5); the mounting seat (1) is provided with a plurality of connecting reinforcing parts (7), and the connecting reinforcing parts (7) and the mounting seat (1) are fixedly provided with a shield tail brush (8). The utility model does not need to carry out additional reinforcement around the soil body, thereby reducing the construction period; the mounted duct pieces do not need to be dismantled, so that repeated operation is reduced; the installation mode of the shield tail brush is changed, the workload is reduced, and the service life of the shield machine is prolonged; the whole process of replacing the shield tail brush does not need to be stopped.

Description

Convenient shield tail brush of changing

Technical Field

The utility model relates to a convenient shield tail brush of changing belongs to shield structure construction technical field.

Background

Along with the continuous acceleration of the urbanization process in China, the demand of urban pipe network construction is more and more, and the shield construction method is fully utilized in the urban pipe network construction due to the characteristics of safety, rapidness, wide adaptability and the like.

In the shield construction process, in order to prevent sundries such as water, soil, grouting materials and the like from entering the shield machine from the shield tail, a shield tail brush needs to be arranged between the shield tail and the duct piece of the shield machine. The shield tail brush generally adopts a steel wire brush and steel sheet pressing plate structure, grease needs to be filled in the steel wire brush, and shield tail grease is filled between the shield tail brushes in the tunneling process of the shield tunneling machine, so that the shield tail brushes have elasticity and plasticity, the slurry and water coming from the outside are blocked, the sealing performance of the shield tunneling machine is ensured, and the safety of shield construction is ensured.

However, as the construction is carried out, the shield tail brush is worn due to the influence of various factors, so that the shield tail brush cannot fully exert the function of the shield tail brush, the progress of the shield construction is hindered, and the damaged shield tail brush needs to be replaced.

As shown in fig. 1, the existing method for replacing the tail brush of the shield mainly includes the following points: firstly, performing wall back grouting on a rear segment to achieve a water stopping effect, then removing a ring of segments close to a shield tail sealing steel wire brush according to a certain sequence, then removing an old shield tail brush and replacing a new shield tail brush, and finally sequentially installing the removed segments according to the sequence. In order to achieve the water stopping effect, the soil body needs to be reinforced, and a freezing method is generally used.

In view of the above, the existing shield tail brush replacement has the following problems in the construction process:

1. the freezing method is used for reinforcing, so that the construction period is long;

2. removing the duct piece, then reinstalling the duct piece, and repeating the operation;

3. the shield tail brush is welded on the shield tail of the shield machine, so that the shield tail is difficult to dig out, the shield tail of the shield machine is damaged, and the service life of the shield machine is shortened;

4. the whole process of replacing the shield tail brush needs shutdown operation, and the construction period is prolonged.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that traditional scheme exists, the utility model provides a shield tail brush of convenient change.

In order to realize the purpose, the technical scheme of the utility model is that:

a shield tail brush convenient to replace comprises an installation seat, wherein a convex connecting table is arranged at one end of the installation seat, and a countersunk hole used for being connected with a shield tail and a threaded hole used for being connected with a duct piece are formed in the connecting table; the mounting seat is provided with a plurality of connecting reinforcing parts, and the connecting reinforcing parts and the mounting seat are fixedly provided with a shield tail brush.

And the mounting seat, the connection reinforcing piece and the shield tail brush are welded to form the compound shield tail brush.

The connection reinforcement comprises round steel.

The connection reinforcing part and the shield tail brush are at least 3.

The shield tail is connected with the countersunk hole through a shield tail bolt.

The duct piece is connected with the threaded hole through a duct piece bolt.

The duct piece comprises a first annular duct piece for assisting in disassembling an old compound shield tail brush and a second annular duct piece for assisting in installing a new compound shield tail brush.

And the first ring pipe piece and the second ring pipe piece are both provided with mounting holes of the compound shield tail brush.

The mounting seat is an arc-shaped steel plate.

The utility model discloses the beneficial effect who reaches:

the utility model does not need to be additionally reinforced around the soil body, thereby reducing the construction period; the mounted duct pieces do not need to be dismantled, so that repeated operation is reduced; the mounting mode of the shield tail brush is changed (the utility model adopts the mode of bolt connection), the workload is reduced, and the service life of the shield machine is prolonged; the whole process of replacing the shield tail brush does not need to be stopped. Namely, the utility model discloses not demolising original section of jurisdiction, do not need the condition of extensive shut down and shut down production to get off and realize the change of new and old shield tail brush. In addition, when the current shield tail brush is changed, the freezing method can not be adopted to solidify the surrounding soil body and the installed segment needs to be removed, and the utility model discloses avoid this two points to can not delay the construction process.

Drawings

FIG. 1 is a schematic diagram of a prior art shield tail brush;

FIG. 2 is a schematic structural view of the double entry shield tail brush of the present invention;

FIG. 3 is an installation view of the double shield tail brush of the present invention;

FIG. 4 is a schematic view of the present invention showing the replacement of a double shield tail brush;

fig. 5 is a schematic diagram of the present invention for completing the replacement of the double shield tail brush.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1

As shown in fig. 2, in this embodiment, a shield tail brush convenient to replace is composed of the following parts: the mounting base 1, three round steel (namely three connection reinforcing parts 7), three shield tail brushes 8 and the duct piece 5.

Mounting seat 1: one section arc steel sheet, above-mentioned threaded hole 6 and counter sink 4 of opening, as required, threaded hole 6 passes through section of jurisdiction bolted connection with section of jurisdiction 5, and counter sink 4 passes through shield tail bolted connection with shield tail 3.

Round steel: the connection performance of the shield tail brush 8 and the mounting seat 1 is enhanced.

Brushing the tail of the shield: the steel wire brush adds the steel sheet clamp plate structure, is current structure.

The three parts are welded together to form a compound shield tail brush.

Specifically, as shown in fig. 3, the shield tail brush convenient to replace comprises a mounting seat 1, wherein one end of the mounting seat 1 is provided with a convex connecting platform 2, and the connecting platform 2 is provided with a countersunk hole 4 used for being connected with a shield tail 3 and a threaded hole 6 used for being connected with a duct piece 5; the mounting base 1 is provided with 3 connecting reinforcing parts 7, the connecting reinforcing parts 7 and the mounting base 1 are fixedly provided with a shield tail brush 8.

And the installation seat 1, the connection reinforcing part 7 and the shield tail brush 8 are welded to form a compound shield tail brush.

The connection reinforcing member 7 is a round bar.

The tube piece 5 comprises a first tube piece 10 for assisting in the removal of an old compound shield tail brush and a second tube piece 11 for assisting in the installation of a new compound shield tail brush.

And the first duct piece 10 and the second duct piece 11 are both provided with mounting holes 9 of the compound shield tail brush.

The specific construction process of the embodiment is as follows:

1. monitoring the shield tail 3 in real time, and determining whether to replace a shield tail brush 8 according to the actual situation on site;

2. the shield machine is operated to a soil body drying section, and the shield attitude is controlled;

3. as shown in fig. 4, a first ring segment 10 is hoisted, the first ring segment 10 is provided with a through hole (i.e. a mounting hole 9 for mounting the compound shield tail brush), after assembly is completed, the first ring segment 10 and the compound shield tail brush are connected through the through hole on the first ring segment 10 and the threaded hole 6 on the mounting seat 1, and meanwhile, the bolt connection between the old compound shield tail brush and the shield tail 3 is loosened;

4. as shown in fig. 5, the second ring segment 11 is hoisted in, and a new compound shield tail brush is installed at the corresponding position of the second ring segment 11. After the assembly is completed, the second ring segment 11 and the bolts on the new compound shield tail brush are loosened, and the mounting seat 1 and the shield tail 3 of the new compound shield tail brush are connected by the bolts, so that the replacement of the compound shield tail brush is completed.

As described above, the embodiment does not need to adopt a freezing method and the like to solidify surrounding soil bodies and does not need to dismantle the installed segments, the embodiment can avoid the two points, and the construction process is not delayed.

Example 2

The present example differs from example 1 in that:

a shield tail brush convenient to replace is characterized in that a connecting reinforcing piece 7 and a shield tail brush 8 are 4.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A shield tail brush convenient to replace is characterized by comprising an installation seat (1), wherein one end of the installation seat (1) is provided with a convex connecting table (2), and the connecting table (2) is provided with a counter bore (4) used for being connected with a shield tail (3) and a threaded hole (6) used for being connected with a duct piece (5); the mounting seat (1) is provided with a plurality of connecting reinforcing parts (7), and the connecting reinforcing parts (7) and the mounting seat (1) are fixedly provided with a shield tail brush (8).

2. The shield tail brush convenient to replace according to claim 1, wherein the mounting seat (1), the connection reinforcing member (7) and the shield tail brush (8) are welded to form a compound shield tail brush.

3. The shield tail brush of claim 1, wherein the connection reinforcement (7) comprises round steel.

4. The shield tail brush of claim 1, wherein the connection reinforcement (7) and the shield tail brush (8) are each at least 3.

5. The shield tail brush convenient to replace according to claim 1, wherein the shield tail (3) is connected with the counter bore (4) through a shield tail bolt.

6. The shield tail brush convenient to replace according to claim 1, wherein the pipe piece (5) is connected with the threaded hole (6) through a pipe piece bolt.

7. A conveniently replaceable shield tail brush according to claim 2, wherein said tube sheet (5) comprises a first ring sheet (10) for assisting in the removal of an old compound shield tail brush and a second ring sheet (11) for assisting in the installation of a new compound shield tail brush.

8. The shield tail brush convenient to replace of claim 7 is characterized in that the first ring segment (10) and the second ring segment (11) are provided with mounting holes (9) of the compound shield tail brush.

9. The shield tail brush convenient to replace according to claim 1, wherein the mounting seat (1) is an arc-shaped steel plate.

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