CN210919055U

CN210919055U - Shield constructs dismantlement structure of machine A ring

Info

Publication number: CN210919055U
Application number: CN201921584701.9U
Authority: CN
Inventors: 于遵博; 薛建国; 张佳佳; 张开猛; 郭磊; 陈兴富; 夏庆发
Original assignee: China Railway Engineering Service Co Ltd
Current assignee: China Railway Engineering Service Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-07-03
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses a disassembly structure of a shield machine ring A, which comprises a ring A, wherein a cutting line is arranged on the ring A, and the disassembly structure also comprises positioning devices, the positioning devices are symmetrically arranged at two sides of the cutting line, the positioning devices corresponding to two sides of the cutting line are overlapped, the positioning devices which are overlapped are fixedly connected through a detachable structure, an intermediate plate is arranged between the positioning devices which are overlapped, and a gap is arranged between the intermediate plate and the ring A; the utility model discloses dismantle the A ring of shield structure machine and repair under current cutting mode, come the position between each A ring after quick location cutting through positioner, can weld between each A ring and repair from coming, the A ring of having solved the shield structure machine is by the problem of unable used many times after the cutting, has practiced thrift manufacturing cost greatly.

Description

Shield constructs dismantlement structure of machine A ring

Technical Field

The utility model belongs to the technical field of shield constructs quick-witted equipment, specifically belong to a shield constructs dismantlement structure of quick-witted A ring.

Background

A shield machine is a tunnel boring machine using a shield method. The shield construction method is a shield (referring to a supporting segment) for constructing (laying) a tunnel while a heading machine is heading, and is different from an open construction method;

the shield machine comprises a plurality of shield bodies, the shield bodies are divided into a cutter head, an A ring, a B ring, a C ring and a D ring in a driving hinged mode, the shield bodies are usually designed to be integrally welded when the shield machine is in factory design, and the shield machine has the characteristic of being not detachable. At present, urban subway construction scale is larger and larger, lines are denser and denser, subway lines newly designed later often pass through densely populated areas, high buildings and road traffic dense areas, a shield machine is not hoisted out of a well, and only a subsurface excavation section, namely a road surface lower excavation space is designed to be used for dismantling the shield machine.

And the shield body of the existing shield machine is designed to be integrally welded, and the shield machine is not detachable, namely, the existing detaching method only adopts the method of destroying the shield machine at the underground excavation section, the shield body can not be repaired after detaching, so that the shield body needs to be newly manufactured at the later stage, and the detaching scheme can greatly improve the use cost of the shield machine.

SUMMERY OF THE UTILITY MODEL

The machine is torn open to taking destruction of shield structure machine A ring among the prior art, dismantles the unable restoration of back A ring, makes the problem that the use cost of shield structure machine improved, the utility model provides a structure of dismantling of shield structure machine A ring, its aim at: the disassembly structure solves the problem that an A ring of the shield tunneling machine cannot be repaired after disassembly, and reduces the use cost of the shield tunneling machine.

The utility model adopts the technical scheme as follows:

the utility model provides a shield constructs dismantlement structure of quick-witted A ring, includes the A ring, the A ring includes ring and main drive, be provided with the line of cut on the A ring, still include positioner, the positioner symmetry sets up in the line of cut both sides, the corresponding positioner stack in line of cut both sides sets up, through detachable construction fixed connection between the corresponding positioner in line of cut both sides, be provided with the intermediate lamella between the corresponding positioner in line of cut both sides, the intermediate lamella with the gap has between the A ring, positioner includes rectangle bolt flange board and dysmorphism locating plate, rectangle bolt flange board establishes the position that is provided with the line of cut in the ring outside of A ring, dysmorphism locating plate setting is provided with the line of cut position at the main drive of A ring.

In the scheme, the position of the cutting line is determined on the ring A before the cutting, the rectangular bolt connecting flange plate and the special-shaped positioning plate are respectively arranged at the position of the cutting line arranged on the outer side of the ring A and the position of the cutting line arranged on the main drive of the ring A, two identical positioning devices are distributed at two sides of the cutting line, an intermediate plate is arranged between the two positioning devices, the intermediate plate and the two positioning devices are detachably connected through positioning pins and bolts, one side of each positioning device is welded on the ring A, the intermediate plate is not welded on the ring A, a gap is formed between the intermediate plate and the ring A, the ring A is cut according to the determined cutting line, because the gap is formed between the intermediate plate and the ring A, when the ring A is cut, the intermediate plate cannot be cut, the positioning devices are distributed at two sides of the cutting line and cannot be cut, and after the cutting is finished, the positioning pins and the bolts are taken down, the divided A rings are respectively provided with a single positioning device, and when the A rings are repaired subsequently, the separated A rings are positioned and combined together through the single positioning devices, so that the rapid positioning and butt joint of the separated A rings can be realized; the utility model discloses dismantle the A ring of shield structure machine and repair under current cutting mode, come the position between each A ring after quick location cutting through positioner, can weld between each A ring and repair from coming, the A ring of having solved the shield structure machine is by the problem of unable used many times after the cutting, has practiced thrift manufacturing cost greatly.

Preferably, the ring A is provided with an anti-deformation support, and the anti-deformation support is I-shaped steel or a steel pipe. Adopt this preferred scheme, support A ring through setting up the shape support of preapring for an unfavorable turn of events, prevent that A ring produces the deformation and influences the subsequent restoration of A ring in cutting process.

Preferably, the stacking direction of the positioning devices is perpendicular to the cutting line, and the stacking direction of the positioning devices is perpendicular to the axial direction of the A ring. Adopt this preferred scheme, compare in the axial direction parallel of positioner superimposed direction and A ring, the utility model discloses a positioner superimposed direction simultaneously with the axial direction perpendicular of line of cut and A ring, this makes the utility model discloses a positioner's effective location length is longer, and the location effect is better.

Preferably, the shape of the middle plate is the same as the shape of the corresponding superposed positioning device, and the length of each side of the middle plate is smaller than that of each side of the corresponding positioning device. By adopting the preferred scheme, the length of each side length of the middle plate is smaller than that of each side length of the corresponding positioning device, so that a gap can be formed between the middle plate and the ring A, and the middle plate and the ring A are the same in shape, convenient to manufacture uniformly and convenient to replace.

Preferably, the position that the ring outside is provided with the line of cut is provided with the binding face, the binding face is the rectangle, rectangle bolted connection flange board sets up on the binding face. By adopting the preferred scheme, the rectangular bolt connecting flange plate and the outer side of the circular ring can be attached as far as possible, and the positioning accuracy is improved.

Preferably, the part of the main drive, which is provided with the cutting line, is provided with an A-ring shell, a main drive mounting seat, a soil bin partition plate and a connecting flange plate respectively, and four sides of the special-shaped positioning plate are fixedly arranged on the A-ring shell, the main drive mounting seat, the soil bin partition plate and the connecting flange plate respectively. By adopting the preferred scheme, the special-shaped positioning plate and the main drive can be attached as far as possible, and the positioning accuracy is improved.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the rectangular bolt connecting flange plate and the special-shaped positioning plate are respectively arranged at the position of a cutting line arranged on the outer side of a ring of the A ring and the position of a cutting line arranged on a main drive of the A ring, two same positioning devices are distributed at two sides of the cutting line, an intermediate plate is arranged between the two positioning devices, the intermediate plate and the two positioning devices are detachably connected through positioning pins and bolts, one side of each positioning device is welded on the A ring, the intermediate plate is not welded on the A ring, a gap is formed between the intermediate plate and the A ring, the A ring is cut according to the determined cutting line, the intermediate plate cannot be cut when the A ring is cut due to the gap between the intermediate plate and the A ring, the positioning devices are distributed at two sides of the cutting line and cannot be cut, after the cutting is finished, the positioning pins and the bolts are taken down, and the A ring after the cutting is respectively provided with a single, when the A ring is repaired subsequently, the A ring is positioned and combined together through a single positioning device, so that the rapid positioning and butt joint of the disassembled A rings can be realized; the utility model discloses dismantle the A ring of shield structure machine and repair under current cutting mode, come the position between each A ring after quick location cutting through positioner, can weld between each A ring and repair from coming, the A ring of having solved the shield structure machine is by the problem of unable used many times after the cutting, has practiced thrift manufacturing cost greatly.

2. The ring A is supported by the anti-deformation support, so that the ring A is prevented from deforming in the cutting process to influence the subsequent repair of the ring A; compare in the axial direction parallel of positioner superimposed direction and A ring, the utility model discloses a positioner superimposed direction simultaneously with the axial direction of line of cut and A ring, this makes the utility model discloses a positioner's effective location length is longer, and the location effect is better.

3. The length of each side length of the middle plate is smaller than that of each side length of the corresponding positioning device, so that a gap is formed between the middle plate and the ring A, and the middle plate and the ring A are the same in shape, convenient to manufacture uniformly and convenient to replace.

4. The positioning devices in different shapes meet the requirements of the structures of different parts of the A ring, and the positioning devices are reasonable in design and high in practicability.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of: the utility model discloses an embodiment's normal view schematic diagram.

FIG. 2 is a diagram of: the enlarged schematic view at M of FIG. 1.

FIG. 3 is a diagram of: fig. 2 is a schematic top view.

FIG. 4 is a diagram of: the utility model provides a concrete implementation mode schematic diagram of rectangle bolted connection flange board.

FIG. 5 is a diagram of: the utility model provides a concrete implementation mode schematic diagram of dysmorphism locating plate.

Reference numerals: 1-a cutting line; 2-deformation-preventing support; 3-a middle plate; 4-rectangular bolts are connected with the flange plate; 5-a circular ring; 6-a shell; 7-a main drive mounting seat; 8-a special-shaped positioning plate; 9-main drive; 10-connecting a flange plate; 11-soil bin partition.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1 to 5.

A dismounting structure of a shield machine A ring comprises the A ring, the A ring comprises a circular ring 5 and a main drive 9, the ring A is provided with a cutting line 1 and also comprises positioning devices which are symmetrically arranged at two sides of the cutting line 1, the corresponding positioning devices at the two sides of the cutting line 1 are arranged in an overlapping way, the corresponding positioning devices at the two sides of the cutting line are fixedly connected through a detachable structure, an intermediate plate 3 is arranged between the corresponding positioning devices at the two sides of the cutting line, a gap is arranged between the intermediate plate 3 and the ring A, the positioning device comprises a rectangular bolt connecting flange plate 4 and a special-shaped positioning plate 8, the rectangular bolt connecting flange plate 4 is arranged at the position, provided with a cutting line 1, of the outer side of a ring 5 of the ring A, and the special-shaped positioning plate 8 is arranged at the position, provided with the cutting line 1, of a main drive 9 of the ring A.

The ring A is provided with an anti-deformation support 2, and the anti-deformation support 2 is I-shaped steel or a steel pipe.

The stacking direction of the positioning devices is perpendicular to the cutting line 1, and the stacking direction of the positioning devices is perpendicular to the axial direction of the ring A.

The shape of the middle plate 3 is the same as that of the corresponding superposed positioning device, and the length of each side of the middle plate 3 is smaller than that of each side of the corresponding positioning device.

The position that the 5 outsides of ring were provided with the line of cut is provided with the binding face, the binding face is the rectangle, rectangle bolted connection flange board 4 sets up on the binding face.

The special-shaped positioning plate is characterized in that an A-ring shell 6, a main drive mounting seat 7, a soil bin partition plate 11 and a connecting flange plate 10 are respectively arranged at the position 1 of the main drive where the cutting line is arranged, and four sides of the special-shaped positioning plate 8 are respectively fixedly arranged on the A-ring shell 6, the main drive mounting seat 7, the soil bin partition plate 11 and the connecting flange plate 10.

In the above scheme, the position of the cutting line 1 of the ring a is shown in fig. 1, the cutting line 1 avoids the damage of the reinforcing rib of the ring a, the bolt mounting hole of the main drive 9 and other parts, the cutting line 1 divides the ring a into an upper part and a lower part, before cutting, the ring a needs to be provided with the deformation-preventing support 2 by I-shaped steel, two I-shaped steel bars are respectively arranged on the upper part and the lower part of the ring a, the rectangular joint surface is arranged at the position of the cutting line arranged at the outer side of the ring 5 of the ring a, in order to ensure that the positioning device is well welded at the outer side of the ring 5 of the ring a, namely the positioning device is as close to the outer side of the ring 5 of the ring a as possible, the positioning accuracy is improved, two groups of rectangular bolt connecting flange plates 4 are arranged at the joint of the outer side of the ring 5 of the ring a and the cutting line 1, and in order to avoid the deformation and the, considering that the casing 6 of the ring A, the main drive mounting seat 7, the soil bin partition plate 11 and the connecting flange plate 10 need to be cut off, as shown in fig. 3, the notches formed by the four devices are suitable for a rectangular positioning device or a special-shaped rectangular figure, and considering that the length and width of the rectangle are larger than the side length of the special-shaped rectangle under the condition of the same positioning effect, the weight of the rectangular bolt connecting positioning plate is larger than that of the special-shaped positioning plate 8, so that the positioning device is selected to be in the special shape, and a group is arranged on the left and the right respectively.

As shown in FIG. 5, each group of rectangular bolt connection flange plates 4 are formed by overlapping two identical rectangular bolt connection flange plates 4 which are connected through bolts and positioning pins, an intermediate plate 3 is arranged between the two rectangular bolt connection flange plates 4, the shape of the intermediate plate 3 is the same as that of the rectangular bolt connection flange plate 4, but the width of the intermediate plate 3 is smaller than that of the rectangular bolt connection flange plates 4, the rectangular bolt connection flange plates 4 are provided with four bolt holes and two positioning pin holes in total, the intermediate plate 3 is also provided with through holes matched in the same number, one sides of the two rectangular bolt connection flange plates 4 are fixed at the position of a cutting line 1 of the shell of the ring A through welding, the overlapping direction of the rectangular bolt connection flange plates 4 is simultaneously vertical to the axial direction of the cutting line 1 and the ring A, a gap is arranged between the intermediate plate 3 and the ring 5 of the ring A, namely the intermediate plate 3 is not contacted with the ring 5 of the ring A, the middle plate 3 is arranged between two rectangular bolt connecting flange plates 4, the position of the cutting line 1 corresponds to the central line of the middle plate 3, the two rectangular bolt connecting flange plates 4 are distributed at two sides of the cutting line 1, when the A ring is divided along the cutting line 1, the middle plate 3 can not be cut, simultaneously, in order to avoid the deformation of the installation structure of the A ring main drive 9 and the convenient recovery, two groups of special-shaped positioning plates 8 are welded at the position of the A ring main drive 9 side provided with the cutting line 1, a group is respectively arranged at the left side and the right side, each group of special-shaped positioning plates 8 are mutually overlapped by two same special-shaped positioning plates 8 and are connected by bolts and positioning pins, the middle plate 3 is also arranged between the two special-shaped positioning plates 8, the shape of the middle plate 3 is the same as that of the special-shaped positioning plates 8, but the length of all sides of the middle plate 3 is less than the length of the, the through hole can be matched with a bolt and a positioning pin, each side of two special-shaped positioning plates 8 is fixed at a main drive 9 of an A ring by welding except for a bevel edge, namely, each side of the special-shaped positioning plates 8 is respectively welded on a shell of the A ring, a mounting seat of the main drive 9, a soil bin partition plate 11 and a connecting flange plate, as shown in figure 1, the superposition direction of the special-shaped positioning plates 8 is simultaneously vertical to the axial direction of a cutting line 1 and the A ring, a gap is arranged between an intermediate plate 3 and the main drive 9 of the A ring, namely, the intermediate plate 3 is not contacted with the main drive 9 of the A ring, the intermediate plate 3 is arranged between the two special-shaped positioning plates 8, the position of the cutting line 1 corresponds to the central line of the intermediate plate 3, when the A ring is divided along the cutting line 1, the intermediate plate 3 can not be cut, each side of the special-shaped positioning plates 8 is respectively welded on the shell 6 of, namely, gaps are respectively arranged among the intermediate plate 3, the shell 6 of the ring A, the main driving mounting seat 7, the soil bin partition plate 11 and the connecting flange plate 10.

Cutting the A ring from the middle position of the A ring to two sides of the A ring by using a flame cutting machine, detaching all bolts and positioning pins after the cutting is finished, cutting the A ring into an upper part and a lower part, wherein each part is provided with a rectangular bolt connecting flange plate 4 and a special-shaped positioning plate 8, quickly positioning the A ring by using the rectangular bolt connecting flange plate 4 and the special-shaped positioning plate 8 in the subsequent repair process, respectively enabling through holes between the rectangular bolt connecting flange and the special-shaped positioning plate 8 which are mutually overlapped and matched to be mutually matched, and inserting the bolts and the positioning pins into the through holes of the rectangular bolt connecting flange plate and the special-shaped positioning plate 8 which are mutually matched to realize the quick positioning between the upper part and the lower part of the A ring; after the positioning is completed, welding repair is carried out on the ring A, the size and the shape of the ring A are adjusted in the repair process, after the welding repair is completed, the anti-deformation support 2 and all the positioning devices are disassembled, and then the ring A is subjected to size and weld seam flaw detection inspection and painted sequentially.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. The utility model provides a shield constructs dismantlement structure of quick-witted A ring, includes the A ring, the A ring includes ring (5) and main drive (9), be provided with line of cut (1), its characterized in that on the A ring: still include positioner, the positioner symmetry sets up in line of cut (1) both sides, the corresponding positioner stack in line of cut (1) both sides sets up, through detachable construction fixed connection between the corresponding positioner in line of cut (1) both sides, be provided with intermediate lamella (3) between the corresponding positioner in line of cut (1) both sides, intermediate lamella (3) with the gap has between the A ring, positioner includes rectangle bolted flange board (4) and dysmorphism locating plate (8), the position that is provided with line of cut (1) in ring of A ring (5) outside is established in rectangle bolted flange board (4), dysmorphism locating plate (8) set up and are provided with line of cut (1) position in main drive (9) of A ring.

2. The dismounting structure of the shield machine A ring according to claim 1, characterized in that: the anti-deformation support (2) is arranged on the ring A, and the anti-deformation support (2) is I-shaped steel or a steel pipe.

3. The dismounting structure of the shield machine A ring according to claim 1, characterized in that: the stacking direction of the positioning devices is perpendicular to the cutting line (1), and the stacking direction of the positioning devices is perpendicular to the axial direction of the ring A.

4. The dismounting structure of the shield machine A ring according to claim 1, characterized in that: the shape of the middle plate (3) is the same as that of the corresponding superposed positioning device, and the length of each side of the middle plate (3) is smaller than that of each side of the corresponding positioning device.

5. The dismounting structure of the shield machine A ring according to claim 1, characterized in that: the position that the ring (5) outside was provided with line of cut (1) is provided with the binding face, the binding face is the rectangle, rectangle bolted connection flange board (4) set up on the binding face.

6. The dismounting structure of the shield machine A ring according to claim 1, characterized in that: the special-shaped positioning plate is characterized in that an A-ring shell (6), a main drive mounting seat (7), a soil bin partition plate (11) and a connecting flange plate (10) are respectively arranged at the position, where the main drive is provided with the cutting line (1), of the main drive, and four sides of the special-shaped positioning plate (8) are fixedly arranged on the A-ring shell (6), the main drive mounting seat (7), the soil bin partition plate (11) and the connecting flange plate (10) respectively.