CN212508321U - Shield constructs tail brush structure of machine of conveniently changing - Google Patents
Shield constructs tail brush structure of machine of conveniently changing Download PDFInfo
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- CN212508321U CN212508321U CN202021108077.8U CN202021108077U CN212508321U CN 212508321 U CN212508321 U CN 212508321U CN 202021108077 U CN202021108077 U CN 202021108077U CN 212508321 U CN212508321 U CN 212508321U
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Abstract
The utility model provides a shield constructs tail brush structure of machine that convenient change. The shield tail brush structure convenient to replace comprises at least three shield brush mounting ring pieces which are arranged in parallel and a sliding rod which connects the at least three shield brush mounting ring pieces, wherein a shield tail brush is welded on the inner ring surface of each shield brush mounting ring piece, and a plurality of mounting holes are formed in the shield brush mounting ring pieces; the sliding rod is arranged on the outer ring surface of at least three shield brush mounting ring pieces, and a sliding groove matched with the sliding rod is arranged at the position where the shield tail brush is mounted on the inner wall of the shield tail shell, and a plurality of bolt mounting grooves are correspondingly formed in the sliding groove; at least three shield brush mounting ring pieces slide into a sliding groove in the inner wall of the shield tail shell through a sliding rod, and the shield brush mounting ring pieces are fixed on the inner wall of the shield tail shell through fastening bolts. The utility model provides a current welding formula shield tail brush when changing waste time, hard, the problem of inefficiency, avoided the space restriction that welding shield tail brush exists in the tunnel to and the various problems that the welding brought.
Description
Technical Field
The invention relates to the field of shield construction, and particularly provides a shield tail brush structure which can be conveniently replaced in shield construction.
Background
With the large-scale development of domestic subway construction, the shield construction method is widely used in subway interval construction due to the characteristics of safety, rapidness, wide adaptability and the like. The shield tail brush of the shield machine is positioned at the tail part of the shield host machine, is generally formed by fluffy steel wire bending back, can be in close contact with the duct piece, mainly plays a role in preventing water, mud and the like from flowing into the inside of the shield along the back part of the duct piece, and is a key sealing facility for preventing the shield tail from generating sand gushing and mud gushing. 2 sealed chambeies are constituteed to 3 sealed brushes of shield tail brush, and chamber between the shield tail brush is through pouring into shield tail sealing grease into, guarantees that the section of jurisdiction synchronous slip casting behind one's back thick liquid and mud can not spill from the clearance between section of jurisdiction and the shield structure machine, prevents simultaneously that groundwater from leaking to the shield structure built-in, if shield tail sealing performance is bad, can cause adverse effect to the shield construction under this condition, can have huge construction risk when the condition is serious.
In the shield tunnel construction process, inevitable wearing and tearing take place between shield tail brush and the shield tunnel, when shield tail brush wearing and tearing to certain extent, will lead to the shield tail to take place the percolating water, leak the silt even, so in case discover shield tail brush great extensive damage, just need in time change shield tail brush. Along with the high-speed development of infrastructure, the distance between single sections of the tunnel is longer and longer, the condition that the normal service life of the shield tail brush is exceeded is more and more, especially when the shield machine passes through a sandy soil or pebble stratum rich in water, because the control of the tunneling process is poor or the self quality of the tail brush and the welding installation do not reach the standard, the transition of certain point positions or the whole abrasion of the shield tail brush is easily caused, the water and slurry stopping effect is not achieved, the construction risk is brought, and the shield tail brush is required to be replaced when the shield machine is positioned in the tunnel.
The shield tail brushes on the existing shield machine are directly welded on the inner side of the shield shell tail, and when the shield machine is replaced, all the old shield tail brushes need to be planed off and new shield tail brushes need to be welded. Because the space in the tunnel is small, the digging and brushing are very inconvenient, potential safety hazards exist in the tunnel during welding, the welding process is long, the leaked grouting liquid is solidified on the brush wires, and the original good tail brush can be damaged after the tail brush is operated again; in addition, the existing shield brushes are uniformly distributed along the 360-degree circumferential direction of the inner wall of the shield tail in a welding mode, generally three circles with the diameter of 6 meters need about 300 shield brushes, the number of the large-diameter shield machines is more and more, the number of the required tail brushes is more, the large number of the tail brushes causes great difficulty for welding construction, and the installation is time-consuming and labor-consuming and low in efficiency.
Disclosure of Invention
The utility model discloses the problem that exists to prior art provides a shield constructs tail brush structure of convenient change, and this shield constructs tail brush structure can realize that multichannel shield tail brush changes simultaneously, and it changes the simple controllable of process, can solve the problem that wastes time, difficultly, inefficiency that exists when current welding formula shield tail brush is changed, the space restriction that exists when avoiding changing the shield in the tunnel to and the influence that the welding brought.
In order to solve the technical problem, the utility model provides a shield constructs tail brush structure of machine that convenient the change. The shield tail brush structure convenient to replace comprises at least three shield brush mounting ring pieces arranged in an arc-shaped parallel manner and a sliding rod for connecting the at least three shield brush mounting ring pieces, wherein a shield tail brush is welded on the inner ring surface of each shield brush mounting ring piece, and a plurality of mounting holes are formed in the shield brush mounting ring pieces; the sliding rod is arranged on the outer ring surface of at least three shield brush mounting ring pieces, and a sliding groove matched with the sliding rod is arranged at the position where the shield tail brush is mounted on the inner wall of the shield tail shell, and a plurality of bolt mounting grooves are correspondingly formed in the sliding groove; at least three shield brush mounting ring pieces slide into a sliding groove of the inner wall of the shield tail shell through a sliding rod, mounting holes in each shield brush mounting ring piece correspond to bolt mounting grooves in the inner wall of the shield tail shell respectively, and the shield brush mounting ring pieces are fixed on the inner wall of the shield tail shell through fastening bolts.
The utility model discloses further technical scheme: the two sliding rods are symmetrically arranged on the outer ring surfaces of at least three shield brush mounting ring pieces in a bolt or welding mode, when the sliding rods are embedded into the sliding grooves, the outer ring surface of each shield brush mounting ring piece is in contact with the inner wall of the shield tail shell, and a sealing gasket is arranged on the outer ring surface of each shield brush mounting ring piece.
The utility model discloses further technical scheme: the shield brush installation ring piece is provided with a distance adjusting structure, and the distance adjusting structure comprises adjusting racks distributed along the circumferential direction of the shield brush installation ring piece and adjusting gears meshed with the adjusting racks.
The utility model discloses better technical scheme: the shield brush mounting ring piece is divided into a shield brush welding area and a mounting area, the shield brush welding area and the mounting area are annular areas which are parallel to each other, and the mounting holes are distributed in the mounting area of the shield brush mounting ring piece.
The utility model discloses better technical scheme: the mounting hole is a strip-shaped mounting hole and is formed in the position, where the shield brush mounting ring sheet is not connected with the sliding rod.
The utility model discloses better technical scheme: one end of the sliding rod is arc-shaped, the other end of the sliding rod is provided with a clamping groove, an inlet of the sliding groove is a splayed enlarged opening, and the tail end of the sliding groove is correspondingly provided with an elastic clamping piece.
The utility model discloses better technical scheme: the sliding rod and the sliding groove contact surface are arc surfaces or are provided with a plurality of sliding balls.
The utility model discloses better technical scheme: the sealing gasket is a rubber gasket and is distributed at the position where each shield brush installation ring piece is not contacted with the sliding rod.
The utility model discloses better technical scheme: the shield brush mounting ring pieces are three, and the distances between the shield tail brushes on the three shield tail brush ring pieces are equal; the distance adjusting structure is arranged on the shield tail brush ring piece in the middle.
The utility model discloses a shield constructs quick-witted tail brush structure and connects multichannel shield tail brush as a whole, then imbeds in the slide of shield tail shells inner wall through the slide bar to through the bolt fastening, when carrying out the dismouting, only need to twist the bolt of shield tail brush and send, alright withdraw from the slide and dismantle it in the shield structure process, the installation only need slide new shield brush whole into the slide, and through the bolt fastening alright, its installation is simple and convenient; the problem of exist when current welding formula shield tail brush is changed waste time, hard, inefficiency is solved, the space restriction of welding shield tail brush existence in the tunnel has been avoided to and the various problems that the welding brought.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a middle shield tail brush of the present invention;
FIG. 3 is a side view of the middle shield tail brush of the present invention;
fig. 4 is a plan view of a shield tail brush in an embodiment of the present invention;
fig. 5 is an installation diagram of the shield tail brush of the present invention.
In the figure: the shield brush mounting structure comprises a shield brush mounting ring piece, 2-a sliding rod, 200-a clamping groove, 200-a sliding ball, 3-a shield tail brush, 4-a mounting hole, 5-a shield tail shell, 6-a sliding groove, 600-an elastic clamping piece, 601-a splayed expansion opening, 7-a bolt mounting groove, 8-a fastening bolt, 9-a distance adjusting structure, 900-an adjusting rack, 901-an adjusting gear and 10-a sealing gasket.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. Fig. 1 to 5 are drawings of the embodiment, which are drawn in a simplified manner and are only used for the purpose of clearly and concisely illustrating the embodiment of the present invention. The following detailed description of the embodiments of the present invention is presented in the drawings and is not intended to limit the scope of the invention as claimed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The shield structure tail brush structure that embodiment provided conveniently changed, as shown in fig. 1 to 3, include three parallel arrangement's arc shield brush collar segment 1 and with three slide bar 2 that shield brush collar segment 1 connects, shield brush collar segment 1 divide into shield brush weld zone and installing zone, shield brush weld zone and installing zone are the annular region that is parallel to each other, have shield tail brush 3 in the welding of the inner ring face of the shield brush weld zone of every shield brush collar segment 1, seted up a plurality of mounting holes 4 in shield brush collar segment 1 installing zone, for convenient installation, mounting holes 4 are rectangular shape mounting holes, and set up the position that shield brush collar segment 1 is not connected with slide bar 2. The number of the sliding rods 2 is two, the two sliding rods are symmetrically arranged on the outer ring surfaces of the three shield brush installation ring pieces 1 in a bolt or welding mode, the insertion end of each sliding rod 2 is arc-shaped, the other end of each sliding rod is provided with a clamping groove 200, a sealing gasket 10 is arranged on the outer ring surface of each shield brush installation ring piece 1, and the sealing gasket 10 is a rubber gasket and is distributed at the position, not in contact with the sliding rod 2, of each shield brush installation ring piece 1. The middle shield brush installation ring piece 1 is provided with a distance adjusting structure 9, the distance adjusting structure comprises an adjusting rack 900 distributed along the circumferential direction of the shield brush installation ring piece 1 and an adjusting gear 901 meshed with the adjusting rack 900, and the circumferential distance of the three shield brush installation ring pieces 1 can be finely adjusted through the distance adjusting structure 9.
As shown in fig. 1 and 5, two sliding grooves 6 matched with the sliding rods 2 are arranged at the positions where the shield tail brushes are installed on the inner wall of the shield tail shell 5, and a plurality of bolt installation grooves 7 (or bolt installation holes) are correspondingly formed in the areas outside the sliding grooves 6; the inlet port of spout 6 is splayed and enlarges mouthful 601 to the tail end correspondence at spout 6 is equipped with elasticity fastener 600, three shield brush installation ring pieces 1 slide in 6 of spout of shield tail shell 5 inner wall through slide bar 2, it is more smooth and easy in order to make the slip, can slide bar 2 and 6 contact surfaces of spout be the arcwall face or be provided with a plurality of slip ball 200, the installation of slip ball 200 has seted up the ball mounting groove at the slide bar 2 back, ball embedding cell body, its part arc exposes the mounting groove, and can roll at will in the mounting groove. The mounting holes 4 on each shield brush mounting ring piece 1 correspond to the bolt mounting grooves 7 on the inner wall of the shield tail shell 5 respectively, the shield brush mounting ring pieces 1 are fixed on the inner wall of the shield tail shell 5 through fastening bolts 8, and when the sliding rods 2 are embedded into the sliding grooves 6, the sealing gaskets 8 on the outer ring surface of each shield brush mounting ring piece 1 are in close contact with the inner wall of the shield tail shell 5.
The utility model discloses during specific installation, be a complete annular shield tail brush is pieced together by a plurality of shield constructs quick-witted tail brush structure, during its specific installation, as shown in fig. 1, in the spout 6 of 5 inner walls of single shield tail brush structure through slide bar 2 embedding shield tail casing to through a plurality of fastening bolt 8 with its locking alright. When the disassembly and replacement are carried out, the fastening screw 8 is only screwed and delivered and then slides out through the sliding groove 6, so that the disassembly and replacement are simple and convenient. The utility model discloses before embedding spout 6, if the position corresponds inaccurately, can also finely tune its hoop position through roll adjustment structure 9.
To sum up, for the utility model discloses an embodiment of listing, nevertheless the utility model discloses not only be limited to above-mentioned embodiment, as long as reach with any same or similar means the technical effect of the utility model, all should belong to the scope of the protection of the utility model.
Claims (9)
1. The utility model provides a shield constructs tail brush structure of convenient change which characterized in that: the shield brush mounting structure comprises at least three arc-shaped shield brush mounting ring pieces (1) which are arranged in parallel and a sliding rod (2) which connects the at least three shield brush mounting ring pieces (1), wherein a shield tail brush (3) is welded on the inner ring surface of each shield brush mounting ring piece (1), and a plurality of mounting holes (4) are formed in the shield brush mounting ring pieces (1); the sliding rod (2) is arranged on the outer ring surface of at least three shield brush mounting ring pieces (1), a sliding groove (6) matched with the sliding rod (2) is arranged at the position where the shield tail brush is mounted on the inner wall of the shield tail shell (5), and a plurality of bolt mounting grooves (7) are correspondingly formed; at least three shield brush mounting ring pieces (1) slide into a sliding groove (6) in the inner wall of a shield tail shell (5) through a sliding rod (2), a mounting hole (4) in each shield brush mounting ring piece (1) corresponds to a bolt mounting groove (7) in the inner wall of the shield tail shell (5) respectively, and the shield brush mounting ring pieces (1) are fixed on the inner wall of the shield tail shell (5) through fastening bolts (8).
2. The shield tunneling machine tail brush structure convenient to replace according to claim 1, and is characterized in that: the two sliding rods (2) are symmetrically arranged on the outer annular surfaces of at least three shield brush installation ring pieces (1) in a bolt or welding mode, when the sliding rods (2) are embedded into corresponding sliding grooves (6), the outer annular surface of each shield brush installation ring piece (1) is in contact with the inner wall of a shield tail shell (5), and a sealing gasket (10) is arranged on the outer annular surface of each shield brush installation ring piece (1).
3. The shield tunneling machine tail brush structure convenient to replace according to claim 1, and is characterized in that: the shield brush installation ring piece (1) is provided with a distance adjusting structure (9), and the distance adjusting structure comprises adjusting racks (900) distributed along the circumferential direction of the shield brush installation ring piece (1) and adjusting gears (901) meshed with the adjusting racks (900).
4. The shield tail brush structure convenient to replace according to claim 1 or 2, wherein: the shield brush mounting ring piece (1) is divided into a shield brush welding area and a mounting area, the shield brush welding area and the mounting area are annular areas which are parallel to each other, and the mounting holes (4) are distributed in the mounting area of the shield brush mounting ring piece (1).
5. The shield tail brush structure convenient to replace according to claim 1 or 2, wherein: the mounting hole (4) is a strip-shaped mounting hole and is formed in a position where the shield brush mounting ring piece (1) is not connected with the sliding rod (2).
6. The shield tail brush structure convenient to replace according to claim 1 or 2, wherein: one end of the sliding rod (2) is arc-shaped, the other end of the sliding rod is provided with a clamping groove (200), an inlet of the sliding groove (6) is a splayed expanding opening (601), and the tail end of the sliding groove (6) is correspondingly provided with an elastic clamping piece (600).
7. The shield tail brush structure convenient to replace according to claim 1 or 2, wherein: the contact surface of the sliding rod (2) and the sliding groove (6) is an arc surface or is provided with a plurality of sliding balls.
8. The shield tunneling machine tail brush structure convenient to replace according to claim 2, and is characterized in that: the sealing gasket (10) is a rubber gasket and is distributed at the position where each shield brush installation ring piece (1) is not contacted with the sliding rod (2).
9. The shield tunneling machine tail brush structure convenient to replace according to claim 3, characterized in that: the shield brush mounting ring pieces (1) are provided with three shield tail brushes, and the distances between the shield tail brushes on the three shield brush mounting ring pieces (1) are equal; the distance adjusting structure (9) is arranged on the shield brush mounting ring sheet (1) in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108077.8U CN212508321U (en) | 2020-06-15 | 2020-06-15 | Shield constructs tail brush structure of machine of conveniently changing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108077.8U CN212508321U (en) | 2020-06-15 | 2020-06-15 | Shield constructs tail brush structure of machine of conveniently changing |
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| Publication Number | Publication Date |
|---|---|
| CN212508321U true CN212508321U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021108077.8U Active CN212508321U (en) | 2020-06-15 | 2020-06-15 | Shield constructs tail brush structure of machine of conveniently changing |
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| CN (1) | CN212508321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706340A (en) * | 2020-06-15 | 2020-09-25 | 中铁十一局集团城市轨道工程有限公司 | Shield tail brush convenient to replace and method for replacing shield tail brush under long-distance non-reinforced working condition |
-
2020
- 2020-06-15 CN CN202021108077.8U patent/CN212508321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706340A (en) * | 2020-06-15 | 2020-09-25 | 中铁十一局集团城市轨道工程有限公司 | Shield tail brush convenient to replace and method for replacing shield tail brush under long-distance non-reinforced working condition |
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