CN110671121A - Disassembly structure, disassembly method and repair method of shield machine - Google Patents
Disassembly structure, disassembly method and repair method of shield machine Download PDFInfo
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- CN110671121A CN110671121A CN201910924532.7A CN201910924532A CN110671121A CN 110671121 A CN110671121 A CN 110671121A CN 201910924532 A CN201910924532 A CN 201910924532A CN 110671121 A CN110671121 A CN 110671121A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008439 repair process Effects 0.000 title claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 154
- 238000003466 welding Methods 0.000 claims abstract description 25
- 230000005641 tunneling Effects 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 6
- 206010066054 Dysmorphism Diseases 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 15
- 238000007789 sealing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 101100008044 Caenorhabditis elegans cut-1 gene Proteins 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P17/00—Metal-working operations, not covered by a single other subclass or another group in this subclass
- B23P17/02—Single metal-working processes; Machines or apparatus therefor
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- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a disassembly structure, a disassembly method and a repair method of a shield machine, belonging to the technical field of shield machine equipment, comprising a plurality of shield bodies, wherein each shield body is provided with a cutting line, and the shield machine also comprises positioning devices, wherein the positioning devices are symmetrically arranged at two sides of the cutting line, the corresponding positioning devices at two sides of the cutting line are arranged in an overlapping way, the mutually overlapped positioning devices are fixedly connected through a detachable structure, and gaps are formed between the shield bodies and the two overlapped positioning devices; the invention respectively aims at shield bodies of the shield machine in the prior cutting mode as follows: the cutter head, the ring A, the ring B, the ring C and the ring D are disassembled and repaired, the position of each shield body after cutting is rapidly positioned through the positioning device, so that welding repair can be carried out between the shield bodies, the problem that the shield body of the shield machine cannot be used repeatedly after being cut is solved, and the manufacturing cost is greatly saved.
Description
Technical Field
The invention belongs to the technical field of shield machine equipment, and particularly belongs to a disassembly structure, a disassembly method and a repair method of a shield machine.
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 according to active hinge, the front shield and the middle shield are usually designed to be integrally welded when the shield machine is in factory design, and the shield machine has the characteristic of non-detachability. 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.
Disclosure of Invention
The invention provides a disassembly structure, a disassembly method and a repair method of a shield machine, aiming at solving the problems that the shield machine in the prior art is disassembled by adopting the damage, and the shield body can not be repaired after the disassembly, so that the use cost of the shield machine is increased, and the aim is as follows: the method and the structure for disassembling and repairing the shield solve the problem that the shield body of the shield machine cannot be repaired after being disassembled, and reduce the use cost of the shield machine.
The technical scheme adopted by the invention is as follows:
the utility model provides a shield constructs dismantlement structure of machine, includes the several shield body, be provided with the line of cut on each shield body, still include positioner, 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 positioner that superposes each other, the shield body with have the gap between two positioner three that overlap.
In the scheme, the position of a cutting line is determined on a shield body before disassembly, positioning devices are welded on the shield body, a plurality of same positioning devices are distributed on two sides of the cutting line and are connected with each other through positioning pins and bolts, one sides of the positioning devices are welded on the shield body, the shield body is cut according to the determined cutting line, and the shield body is cut from the middle to two ends of the shield body at the same time; the invention respectively aims at shield bodies of the shield machine in the prior cutting mode as follows: the cutter head, the ring A, the ring B, the ring C and the ring D are disassembled and repaired, the position of each shield body after cutting is rapidly positioned through the positioning device, so that welding repair can be carried out between the shield bodies, the problem that the shield body of the shield machine cannot be used repeatedly after being cut is solved, and the manufacturing cost is greatly saved.
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 shield body. By adopting the preferred scheme, compared with the situation that the stacking direction of the positioning device is parallel to the axial direction of the shield body, the stacking direction of the positioning device is simultaneously vertical to the axial directions of the cutting line and the shield body, so that the positioning device has almost no invalid positioning length, the effective positioning length is longer, and the positioning effect is better. The ineffective positioning length is understood to be a length provided to satisfy the structure of the positioning device (for example, the length of the entire positioning device is increased due to some bent structures); correspondingly, the effective positioning length is understood to be the length of the parts necessary for the positioning function (e.g. the total length of the parts where the positioning devices are superimposed and fixed on each other and the parts where the gap with the shield is left).
Preferably, the shield body is provided with an anti-deformation support, and the anti-deformation support is I-shaped steel or a steel pipe. By adopting the preferred scheme, the shield body is supported by the anti-deformation support, so that the shield body is prevented from deforming in the cutting process to influence the subsequent repair of the shield body.
Preferably, the shield body includes the blade disc, the blade disc includes first ring and spoke roof beam, and the positioner who is connected with the blade disc is arc bolted flange board and rectangle bolted flange board, rectangle bolted flange board sets up the position that is provided with the line of cut in the first ring outside of blade disc, arc bolted flange board sets up the position that is provided with the line of cut at the spoke roof beam of blade disc. Adopt this preferred scheme, the position department that is provided with the line of cut in the first ring outside of blade disc sets up rectangle bolted flange board, the position department that is provided with the line of cut at the spoke roof beam of blade disc sets up arc bolted flange board, connect through locating pin and positioning bolt between the positioner that superposes each other, positioner that superposes each other sets up respectively in the both sides of line of cut, accomplishes the quick location to cutter head cutting member, convenient follow-up can be quick weld the restoration to the blade disc.
Preferably, the shield body includes the D ring, the D ring includes the second ring, the positioner who is connected with the D ring is rectangle bolted connection flange board, rectangle bolted connection flange board sets up the position that is provided with the line of cut outside the second ring of D ring. Adopt this preferred scheme, the position department that is provided with the line of cut in the second ring outside of D ring sets up rectangle bolted connection flange board, connects through locating pin and positioning bolt between the positioner that superposes each other, and the positioner that superposes each other sets up respectively in the both sides of line of cut, accomplishes the quick location to D ring cutting part, and convenient follow-up can be quick weld the restoration to the D ring.
Preferably, the shield body includes the C ring, the C ring includes the third ring, and the positioner who is connected with the C ring includes accurate triangle-shaped locating plate, accurate triangle-shaped locating plate sets up the position that is provided with the line of cut in the third ring inside of C ring. Adopt this preferred scheme, the position department that is provided with the line of cut at the third ring inboard of C ring sets up accurate triangle-shaped locating plate, through locating pin and positioning bolt connection between the accurate triangle-shaped locating plate of mutual stack, the accurate triangle-shaped locating plate of mutual stack sets up respectively in the both sides of line of cut, accomplishes the quick location to C ring cutting part, and convenient follow-up can be quick weld the restoration to C ring.
Preferably, the shield body includes B ring, B ring includes the fourth ring, with the positioner that B ring is connected is rectangle bolted flange board and accurate triangle-shaped locating plate, rectangle bolted flange board sets up the position that is provided with the line of cut in the fourth ring outside of B ring, accurate triangle-shaped locating plate sets up the position that is provided with the line of cut in the fourth ring inboard of B ring. Adopt this preferred scheme, the position department that is provided with the line of cut in the fourth ring outside of B ring sets up rectangle bolted connection flange board, the length of B ring is longer and be close to 2 meters, the event sets up accurate triangle-shaped locating plate in the position department that is provided with the line of cut in the fourth ring inboard of B ring simultaneously, connect through the locating pin between the positioner that superposes each other, positioner that superposes each other sets up the both sides at the line of cut respectively, the completion is to the quick location of B ring cutting part, convenient follow-up can be quick weld the restoration to the B ring.
Preferably, the shield body includes a ring A, the ring A includes fifth ring and main drive, the positioner who is connected with ring A is rectangle bolted connection flange board and dysmorphism locating plate, rectangle bolted connection flange board is established and is provided with the position of line of cut in the five rings of ring A outside, dysmorphism locating plate sets up the position that is provided with the line of cut in the main drive of ring A. Adopt this preferred scheme, set up rectangle bolted connection flange board in the fifth ring outside of A ring and the junction of line of cut, for avoiding A ring main drive mounting structure to warp and be convenient for resume, set up two special-shaped locating plates in the main drive of A ring and the junction of line of cut, connect through the locating pin between the positioner of mutual stack, positioner of mutual stack sets up the both sides at the line of cut respectively, the completion is to the quick location of A ring cutting part, convenient follow-up can be quick restores the A ring.
A dismounting method applied to a dismounting structure of a shield tunneling machine comprises the following steps:
the method comprises the following steps: determining the disassembly sequence of each shield body of the shield machine;
step two: determining the cutting line position of each shield body of the shield machine;
step three: the shield body is provided with an anti-deformation supporting device, a positioning device is arranged at the position of a cutting line, the positioning devices are symmetrically arranged at two sides of the cutting line, the positioning devices corresponding to the two sides of the cutting line are overlapped, and the positioning devices which are mutually overlapped are fixedly connected through detachable structures;
step four: cutting the shield body along the cutting line, separating the shield body from the shield machine main body after the cutting is finished, disassembling the positioning devices which are mutually overlapped, and separating the shield body after the cutting is finished.
A repair method applied to a disassembly structure of a shield tunneling machine comprises the following steps:
the method comprises the following steps: splicing the detached and separated shield bodies according to cutting lines, superposing the positioning devices installed during detachment one by one again to ensure that the positions of the separated shield bodies are accurate, and then fixedly connecting the positioning devices which are superposed correspondingly to each other again;
step two: inspecting the shield body, adjusting the position with improper size and shape caused by inaccurate splicing, and welding the shield body after determining that the splicing is correct;
step three: and after the welding is confirmed to be correct, the deformation-preventing support and the positioning device are disassembled, and the size and the weld seam flaw detection of the shield body are sequentially checked.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the plurality of positioning devices are connected through positioning pins and positioning bolts, one sides of the positioning devices are welded on the shield body, the shield body is cut according to a determined cutting line, and the shield body is cut from the middle of the shield body to two ends simultaneously, because gaps are formed between the positioning devices and the shield body, the positioning devices cannot be cut when the shield body is cut, after the cutting is finished, the positioning pins and the positioning bolts are taken down, the divided shield bodies are respectively provided with a single positioning device, and then when the shield body is repaired, the single positioning devices are positioned and combined together, so that the rapid positioning and butt joint of the divided shield bodies after the shield body is disassembled can be realized; the invention respectively aims at shield bodies of the shield machine in the prior cutting mode as follows: the cutter head, the ring A, the ring B, the ring C and the ring D are disassembled and repaired, the position of each shield body after cutting is rapidly positioned through the positioning device, so that welding repair can be carried out between the shield bodies, the problem that the shield body of the shield machine cannot be used repeatedly after being cut is solved, and the manufacturing cost is greatly saved.
2. Compared with the positioning device with the stacking direction parallel to the axial direction of the shield body, the positioning device with the stacking direction perpendicular to the axial direction of the cutting line and the shield body has the advantages that the positioning device is almost free of invalid positioning length, the effective positioning length is longer, and the positioning effect is better. The ineffective positioning length is understood to be a length provided to satisfy the structure of the positioning device (for example, the length of the entire positioning device is increased due to some bent structures); correspondingly, the effective positioning length is understood to be the length of the parts necessary for the positioning function (e.g. the total length of the parts where the positioning devices are superimposed and fixed on each other and the parts where the gap with the shield is left).
3. Support the shield body through setting up the shape support of preapring for an unfavorable turn of events, prevent that the shield body from producing the subsequent restoration of deformation influence shield body in cutting process.
4. The positioning devices with different shapes meet different shield body structures, 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 invention discloses a shield tunneling machine cutterhead dismounting structure, which is a schematic diagram of a specific implementation mode.
FIG. 2 is a diagram of: the invention discloses a shield tunneling machine D ring dismounting structure.
FIG. 3 is a diagram of: the invention discloses a shield tunneling machine C-ring dismounting structure.
FIG. 4 is a diagram of: the invention discloses a shield tunneling machine B-ring dismounting structure.
FIG. 5 is a diagram of: the invention discloses a shield tunneling machine A ring dismounting structure.
FIG. 6 is a diagram of: the invention discloses a schematic diagram of a specific embodiment of a rectangular bolt connection flange plate.
FIG. 7 is a diagram of: the invention discloses a schematic diagram of a concrete embodiment of an arc bolt connecting flange plate.
FIG. 8 is a diagram of: the invention discloses a schematic diagram of a specific implementation mode of a special-shaped positioning plate.
FIG. 9 is a schematic diagram of: the invention discloses a schematic diagram of a specific implementation mode of a quasi-triangular positioning plate.
FIG. 10 is a schematic diagram of: the invention is illustrated schematically at M in FIG. 5.
FIG. 11 is a graph of: fig. 10 is a schematic top view of the present invention.
Reference numerals: 1-a cutting line; 2-deformation-preventing support; 3, connecting the arc bolt with the flange plate; 4-rectangular bolts are connected with the flange plate; 51-a first circular ring; 52-a second ring; 53-third ring; 54-a fourth ring; 55-fifth ring; 6-spoke beam; 7-quasi-triangular positioning plate; 8-a special-shaped positioning plate; 9-main drive.
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 is described in detail below with reference to fig. 1-11.
The utility model provides a shield constructs dismantlement structure of machine, includes the several shield body, be provided with line of cut 1 on each shield body, still include positioner, positioner symmetry sets up in 1 both sides of line of cut, the corresponding positioner stack in 1 both sides of line of cut sets up, through detachable construction fixed connection between the positioner that superposes each other, the shield body with the gap has between two positioner three that overlap.
A dismounting method applied to a dismounting structure of a shield tunneling machine comprises the following steps:
the method comprises the following steps: determining the disassembly sequence of each shield body of the shield machine;
step two: determining the cutting line position of each shield body of the shield machine;
step three: the shield body is provided with an anti-deformation supporting device, a positioning device is arranged at the position of a cutting line, the positioning devices are symmetrically arranged at two sides of the cutting line, the positioning devices corresponding to the two sides of the cutting line are overlapped, and the positioning devices which are mutually overlapped are fixedly connected through detachable structures;
step four: cutting the shield body along the cutting line, separating the shield body from the shield machine main body after the cutting is finished, disassembling the positioning devices which are mutually overlapped, and separating the shield body after the cutting is finished.
A repair method applied to a disassembly structure of a shield tunneling machine comprises the following steps:
the method comprises the following steps: splicing the detached and separated shield bodies according to cutting lines, superposing the positioning devices installed during detachment one by one again to ensure that the positions of the separated shield bodies are accurate, and then fixedly connecting the positioning devices which are superposed correspondingly to each other again;
step two: inspecting the shield body, adjusting the position with improper size and shape caused by inaccurate splicing, and welding the shield body after determining that the splicing is correct;
step three: and after the welding is confirmed to be correct, the deformation-preventing support and the positioning device are disassembled, and the size and the weld seam flaw detection of the shield body are sequentially checked.
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 shield body.
The shield body is provided with anti-deformation support 2, and the anti-deformation support 2 is I-shaped steel or a steel pipe.
The following examples are all preferably obtained on the basis of the above-described protocol.
In embodiment one, the shield body includes the blade disc, the blade disc includes first ring 51 and spoke roof beam 6, and the positioner who is connected with the blade disc is arc bolted flange board 3 and rectangle bolted flange board 4, rectangle bolted flange board 4 sets up the position that is provided with line of cut 1 in the first ring 51 outside of blade disc, arc bolted flange board 3 sets up the position that is provided with line of cut 1 in the spoke roof beam 6 of blade disc.
The cutting line 1 of the cutter head is positioned as shown in figure 1, the cutting line 1 avoids damage of a cutter head welding tool to a super digging cutter and an oil pipe, the cutter head is divided into an upper part, a middle part and a lower part by the cutting line 1, in order to prevent the cutter head from deforming in the cutting process, an anti-deformation support 2 is required to be made on the cutter head by using two I-shaped steels, the two I-shaped steels are respectively arranged on the upper part and the lower part of the cutter head, a rectangular joint surface is arranged at the position of the cutting line arranged outside a first ring 51 of the cutter head, in order to enable a positioning device to be well welded outside the first ring 51 of the cutter head, namely the positioning device is jointed with the outer side of the first ring 51 as far as possible, the positioning accuracy is improved, the shape of the positioning device at the position of the cutting line 1 arranged outside the first ring 51 of the cutter head is selected to be, the side surface of the spoke beam 6 is a cylindrical surface, and in order to enable the positioning device to be well welded on the side surface of the spoke beam 6 of the cutter head, namely the positioning device is attached to the spoke beam 6 as much as possible, and the positioning accuracy is improved, the positioning device at the position of the spoke beam 6 of the cutter head, where the cutting line 1 is arranged, is selected to be arc-shaped; four groups of rectangular bolt connecting flange plates 4 are arranged at the position of a cutting line 1 arranged on the outer side of a first circular ring 51 of a cutter head, two groups are respectively arranged on the left and the right, as shown in figure 1, the rectangular bolt connecting flange plates 4 are required to be arranged at four positions in total, each group of rectangular bolt connecting flange plates 4 are formed by mutually overlapping two identical rectangular bolt connecting flange plates 4 and are connected through positioning pins and bolts, an intermediate plate is also arranged between the two rectangular bolt connecting flange plates 4, the shape of the intermediate plate is the same as that of the rectangular bolt connecting flange plates 4, but the width of the intermediate plate is smaller than that of the rectangular bolt connecting flange plates 4, the rectangular bolt connecting flange plates 4 are provided with four bolt holes and two positioning pin holes in total, the intermediate plate is also provided with through holes with the same number and matching, one side of the two rectangular bolt connecting flange plates 4 is fixed at the connecting position of the outer side of the first circular ring 51 of the cutter head and the cutting, the superposition direction of the rectangular bolt connecting flange plates 4 is simultaneously vertical to the axial direction of the cutting line 1 and the cutter head, a gap is arranged between the middle plate and the outer side of the first circular ring 51 of the cutter head, namely the middle plate is not contacted with the outer side of the first circular ring 51 of the cutter head, the middle plate is arranged between the two rectangular bolt connecting flange plates 4, the position of the cutting line 1 corresponds to the central line of the middle plate, the two rectangular bolt connecting flange plates 4 are distributed at the two sides of the cutting line 1, when the cutter head is cut along the cutting line 1, the middle plate can not be cut, simultaneously four groups of arc bolt connecting flange plates 3 are welded at the position of the spoke beam 6 of the cutter head, the left and the right are respectively provided with two groups, four groups of arc bolt connecting flange plates 3 are required to be arranged at four positions in total, each group of arc bolt connecting flange plates 3 are formed by mutually superposing two same arc bolt connecting flange plates 3 and are, an intermediate plate is arranged between the two arc bolt connecting flange plates 3, the shape of the intermediate plate is the same as that of the arc bolt connecting flange plates 3, but the width of the intermediate plate is smaller than that of the arc bolt connecting flange plates 3, through holes which are mutually matched are respectively arranged on the arc bolt connecting flange plates 3 and the intermediate plate, the through holes are respectively provided with four bolt holes and a positioning pin hole, the through holes can be matched with bolts and positioning pins, one side of the two arc bolt connecting flange plates 3 is fixed at the position of a spoke beam 6 of the cutter head, which is provided with a cutting line 1, by welding, the superposition direction of the arc bolt connecting flange plates 3 is simultaneously vertical to the axial directions of the cutting line 1 and the cutter head, a gap is arranged between the intermediate plate and the outer side of a first ring 51 of the cutter head, namely, the intermediate plate is not contacted with the outer side of the first ring 51 of the cutter head, the intermediate plate is arranged between the two, the position of the cutting line 1 corresponds to the center line of the middle plate, and when the cutter disc is divided along the cutting line 1, the middle plate cannot be cut; cutting from the middle position of the cutter disc to two sides of the cutter disc by using a flame cutting machine, detaching all bolts and positioning pins on a positioning device after cutting is finished, cutting the cutter disc into an upper part, a middle part and a lower part, wherein each part is provided with an arc bolt connecting flange plate 3 and a rectangular bolt connecting flange plate 4; after the positioning is completed, the cutter head is welded and repaired, the size and the shape of the cutter head are adjusted in the repairing process, after the welding and repairing are completed, the anti-deformation support 2 and all the positioning devices are disassembled, and then the cutter head is subjected to size and welding seam flaw detection and painted sequentially.
In the second embodiment, the shield body comprises a D ring, the D ring comprises a second circular ring 52, the positioning device connected with the D ring is a rectangular bolt connecting flange plate 4, and the rectangular bolt connecting flange plate (4) is arranged at a position, where the cutting line 1 is arranged, outside the second circular ring 52 of the D ring.
The position of a cutting line 1 of a D ring is shown in figure 2, the cutting line 1 avoids damage of a grouting pipe and a grease injection pipe of the D ring, the cutting line 1 divides the D ring into an upper part, a left middle part, a right middle part and a lower part, in order to prevent the D ring from deforming in the cutting process, four groups of I-shaped steel are required to be used on the D ring to be well supported by an anti-deformation support 2, the four groups of I-shaped steel are respectively arranged on the upper part, the left middle part, the right middle part and the lower part of the D ring, and in consideration of the fact that a rectangular attaching surface is arranged at the position of the cutting line arranged on the outer side of the D ring, in order to enable a positioning device to be well welded on the outer side of a second ring 52 of the D ring, namely the positioning device is attached to the outer side of the second ring 52 as much as possible, the positioning accuracy is.
Four groups of rectangular bolt connecting flange plates 4 are arranged at the joint of the outer side of a second circular ring 52 of the D ring and a cutting line 1, namely the outer side of a D ring shell, two groups of rectangular bolt connecting flange plates 4 are arranged on the left side and the right side respectively, as shown in figure 2, four groups of rectangular bolt connecting flange plates 4 are needed in total, each group of rectangular bolt connecting flange plates 4 are formed by overlapping two identical rectangular bolt connecting flange plates 4 and are connected through bolts and positioning pins, an intermediate plate is also arranged between the two rectangular bolt connecting flange plates 4, the shape of the intermediate plate is the same as that of the rectangular bolt connecting flange plates 4, but the width of the intermediate plate is smaller than that of the rectangular bolt connecting flange plates 4, the rectangular bolt connecting flange plates 4 are provided with four bolt holes and two positioning pin holes in total, the intermediate plate is also provided with the same number of matched through holes, one side of the two rectangular bolt connecting flange plates 4 is fixed at the position of the cutting line 1 arranged on the outer side of the second circular ring 52, the superposition direction of the rectangular bolt connecting flange plates 4 is simultaneously vertical to the axial direction of the cutting line 1 and the D ring, a gap is formed between the middle plate and the second ring 52 of the D ring, namely the middle plate is not contacted with the second ring 52 of the D ring, the middle plate is arranged between the two rectangular bolt connecting flange plates 4, the position of the cutting line 1 corresponds to the central line of the middle plate, the two rectangular bolt connecting flange plates 4 are distributed at two sides of the cutting line 1, and when the D ring is divided along the cutting line 1, the middle plate cannot be cut; cutting the D ring from the middle position of the D ring to two sides of the D ring by using a flame cutting machine, detaching all bolts and positioning pins after the cutting is finished, cutting the D ring into an upper part, a left middle part, a left part, a right part and a lower part, wherein each part is provided with a rectangular bolt connecting flange plate 4, quickly positioning the D ring by using the rectangular bolt connecting flange plates 4 in the subsequent repair process, enabling through holes between the rectangular bolt connecting flange plates 4 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 plates 4 which are mutually matched to realize the quick positioning between the upper part, the left middle part, the right middle part and the lower part of the D ring; after the completion location, begin to weld the restoration to the D ring, should pay attention to the size, the shape of D ring to adjust among the repair process, after welding restoration is accomplished, dismantle the deformation support 2 of preapring for an unfavorable turn of events and all positioner can, follow-up carry out size, welding seam flaw detection inspection and brush paint to the D ring in proper order.
In the third implementation, the shield body includes a C-ring, the C-ring includes a third ring 53, the positioning device connected to the C-ring is a quasi-triangular positioning plate 7, and the quasi-triangular positioning plate 7 is disposed at a position where the cutting line 1 is disposed inside the third ring 53 of the C-ring.
The position of a cutting line 1 of the C ring is shown in figure 3, the cutting line 1 avoids the damage of the installation position of a C ring hinged oil cylinder, the C ring is divided into an upper part and a lower part by the cutting line 1, in order to prevent the C ring from deforming in the cutting process, an anti-deformation support 2 is required to be made on the C ring by using two I-shaped steels, and the I-shaped steels are respectively arranged on the upper part and the lower part of the C ring; because the thickness of the sealing hinge ring, namely the third ring 53 of the C ring, is thin, the surface quality repaired after cutting can not meet the requirement of matching for sealing use, the sealing hinge ring in the C ring needs to be newly manufactured when being recovered, and in addition, the length of the third ring 53 of the C ring is shorter, so that two groups of quasi-triangular positioning plates 7, namely the graphs formed by cutting two acute angles of a right-angled triangle, are arranged at the positions of the inner side of the third ring 53 of the C ring, namely the positions of the right-angled triangle and the right-angled triangle, and a group of quasi-triangular positioning plates 7 are respectively arranged at the left and the right, the space length of the positions of the cutting lines arranged at the inner side of the third ring 53 of the C ring is considered to be smaller, and the length and the width of the rectangle are considered to be equal to the two sides of the quasi-triangular positioning plates under the condition of the same positioning effect, the weight of the positioning plates connected by the rectangular, the accuracy of location is improved, so select positioner's shape to be accurate triangle-shaped, do not select the rectangle, the two shorts sides of accurate triangle-shaped locating plate weld respectively on C ring's connection ring flange and C ring casing.
As shown in fig. 3, each set of quasi-triangular positioning plates 7 is formed by overlapping two identical quasi-triangular positioning plates 7 with each other and connecting the same through bolts and positioning pins, a middle plate is further arranged between the two quasi-triangular flange plates, the shape of the middle plate is the same as that of the quasi-triangular positioning plates, but the length of the two short sides of the middle plate is less than that of the length of the two short sides of the quasi-triangular positioning plates 7, six bolt holes and two positioning pin holes are arranged on the quasi-triangular positioning plates 7 in total, the middle plate is also provided with through holes matched with the same number, the two short sides of the two quasi-triangular positioning plates 7 are fixed at the position of the inner side of the third ring 53 of the C ring, which is provided with the cutting line 1, namely, the two short sides of the quasi-triangular positioning plates are respectively welded on the connecting flange of the C ring, a gap is formed between the middle plate and the inner side of the third ring 53 of the C ring, namely the middle plate is not contacted with the inner side of the third ring 53 of the C ring, the middle plate is arranged between the two quasi-triangular positioning plates 7, the position of the cutting line 1 corresponds to the central line of the middle plate, the two quasi-triangular positioning plates 7 are distributed at two sides of the cutting line 1, when the C ring is divided along the cutting line 1, the middle plate cannot be cut, the two short edge lengths of the quasi-triangular positioning plates are respectively welded on the connecting flange and the C ring shell, namely the middle plate is respectively provided with a gap with the connecting flange and the C ring shell; cutting the C ring from the middle position of the C ring to two sides of the C ring along the cutting line 1 by using a flame cutting machine, detaching all bolts and positioning pins after the cutting is finished, cutting the C ring into an upper part and a lower part, wherein each part is provided with a quasi-triangular positioning plate 7, and in the subsequent repair process, the quasi-triangular positioning plates 7 can be used for quickly positioning the C ring, so that through holes between the quasi-triangular positioning plates 7 which are mutually overlapped and matched are mutually matched, and the bolts and the positioning pins are inserted into the through holes of the quasi-triangular positioning plates 7 which are mutually matched, so that the quick positioning between the upper part and the lower part of the C ring can be realized; after the completion location, begin to weld the restoration to C ring, should pay attention to the size, the shape of C ring to adjust among the restoration process, after welding restoration is accomplished, dismantle the deformation support 2 of preapring for an unfavorable turn of events and all positioner can, follow-up carry out size, welding seam flaw detection inspection and brush paint to C ring in proper order.
In the fourth embodiment, the shield body comprises a ring B, the ring B comprises a fourth ring 54, the positioning devices connected with the ring B are a rectangular bolt connecting flange plate 4 and a quasi-triangular positioning plate 7, the rectangular bolt connecting flange plate 4 is arranged at the joint of the outer side of the fourth ring 54 of the ring B and the cutting line 1, and the quasi-triangular positioning plate 7 is arranged at the position of the inner side of the fourth ring 54 of the ring B, where the cutting line 1 is arranged.
The position of a cutting line 1 of the ring B is shown in figure 4, the cutting line 1 avoids the damage of the hinged cylinder seat and other parts of the ring B, the ring B is divided into an upper part and a lower part by the cutting line 1, in order to prevent a fourth ring 54 of the ring B from deforming in the cutting process, two groups of steel pipes are required to be used on the ring B for preparing an anti-deformation support 2, and the steel pipes are respectively arranged on the upper part and the lower part of the ring B; because the thickness of the sealing hinge ring, namely the fourth ring 54 of the ring B is thin, the surface quality repaired after cutting can not meet the requirement of sealing use matching, the sealing hinge ring in the ring B needs to be newly manufactured when being recovered, and in addition, the positioning connection between the shell of the ring B and the sealing hinge ring needs to be considered, a rectangular bolt connecting flange plate 4 is arranged outside the fourth ring 54 of the ring B, namely the sealing hinge ring, a rectangular joint surface is arranged on the position of the outer side of the fourth ring 54 of the ring B, in order to enable the positioning device to be well welded on the outer side of the fourth ring 54 of the ring B, namely the positioning device and the outer side of the fourth ring 54, and improve the positioning accuracy, the shape of the positioning device on the position of the outer side of the fourth ring 54 of the ring B, which is provided with the cutting line 1, is selected to be rectangular, and the connecting flange of the ring B and the shell of the ring B need to be cut on the inner side of the fourth ring 54 of the ring B, therefore, two groups of quasi-triangular positioning plates 7 are arranged at the position where the cutting line 1 is arranged on the inner side of the fourth ring 54 of the ring B, the quasi-triangular shape is a right-angled triangle and a figure formed by cutting two acute angles, the left side and the right side of the quasi-triangular positioning plates 7 are respectively arranged, the length and the width of a rectangle are equal to the length of two sides of the quasi-triangular positioning plates under the condition of the same positioning effect, the weight of the rectangular bolt connecting positioning plates is larger than that of the quasi-triangular positioning plates 7, even if the positioning device is well welded on the inner side of the fourth ring 54 of the ring B, the positioning device is attached to the inner side of the fourth ring 54 as much as possible, and the positioning accuracy is improved, so that the quasi-triangular positioning device is selected in shape, the rectangle is not selected, and the two short; as shown in fig. 4, each set of quasi-triangular positioning plates 7 is formed by overlapping two identical quasi-triangular positioning plates 7 with each other and connecting the same by bolts and positioning pins, a middle plate is further arranged between the two quasi-triangular flange plates, the shape of the middle plate is the same as that of the triangular positioning plates, but the length of the two short side lengths of the middle plate is smaller than that of the two short side lengths of the quasi-triangular positioning plates 7, the quasi-triangular flange plates are provided with six bolt holes and two positioning pin holes, the middle plate is also provided with through holes with the same number and matching, one side of the two quasi-triangular positioning plates 7 is fixed on the position of the inner side of the fourth ring 54 of the ring B by welding, namely, the two short side lengths of the quasi-triangular positioning plates are respectively welded on the connecting flange of the ring B and the ring shell of the ring B, the overlapping direction of the, a gap is formed between the middle plate and the inner side of the fourth ring 54 of the ring B, namely the middle plate is not contacted with the inner side of the fourth ring 54 of the ring B, the middle plate is arranged between the two quasi-triangular positioning plates 7, the position of the cutting line 1 corresponds to the central line of the middle plate, the two quasi-triangular positioning plates 7 are distributed at two sides of the cutting line 1, when the ring B is divided along the cutting line 1, the middle plate cannot be cut, two short edges of the quasi-triangular positioning plates are respectively welded on the connecting flange plate and the ring B shell of the ring B, namely, gaps are formed between the middle plate and the connecting flange plate and the ring B shell; meanwhile, because the length of the ring B is close to two meters, four groups of rectangular bolt connecting flange plates 4 are required to be arranged at the position of the fourth ring 54 of the ring B, which is provided with the cutting line 1, two groups are respectively arranged at the left side and the right side, each group of rectangular bolt connecting flange plates 4 are formed by mutually overlapping two identical rectangular bolt connecting flange plates 4 and are connected through bolts and positioning pins, an intermediate plate is also arranged between the two rectangular bolt connecting flange plates 4, the shape of the intermediate plate is the same as that of the rectangular bolt connecting flange plates 4, but the width of the intermediate plate is smaller than that of the rectangular bolt connecting flange plates 4, the rectangular bolt connecting flange plates 4 are provided with four bolt holes and two positioning pin holes in total, the intermediate plate is also provided with through holes in the same number, one side of the two rectangular bolt connecting flange plates 4 is fixed at the position of the outer side of the fourth ring 54 of the ring B through welding, which is provided with the cutting, the superposition direction of the rectangular bolt connecting flange plates 4 is simultaneously vertical to the axial directions of the cutting line 1 and the ring B, a gap is formed between the middle plate and the outer side of the fourth ring 54 of the ring B, namely the middle plate is not contacted with the outer side of the fourth ring 54 of the ring B, the middle plate is arranged between the two rectangular bolt connecting positioning plates, the position of the cutting line 1 corresponds to the central line of the middle plate, the two rectangular bolt connecting flange plates 4 are distributed at two sides of the cutting line 1, when the ring B is divided along the cutting line 1, the middle plate can not be cut, a flame cutting machine is used for cutting from the middle position of the ring B to two sides of the ring B along the cutting line 1, all bolts and positioning pins are detached after the cutting is finished, the ring B is cut into an upper part and a lower part, each part is provided with a quasi-triangular positioning plate 7 and a rectangular bolt connecting flange plate 4, the quasi-triangular positioning plate 7 and the rectangular bolt connecting flange plates 4 can be used for quickly positioning the, the through holes between the quasi-triangular positioning plate 7 and the rectangular bolt connecting flange plate 4 which are mutually overlapped and matched are mutually matched respectively, and the bolts and the positioning pins are respectively inserted into the through holes of the quasi-triangular positioning plate 7 and the rectangular bolt connecting flange plate 4 which are mutually matched, so that the quick positioning between the upper part and the lower part of the B ring can be realized; after the positioning is completed, welding repair is carried out on the B ring, the size and the shape of the B ring are adjusted by attention in the repair process, after the welding repair is completed, the anti-deformation support 2 and all the positioning devices are disassembled, and then size, welding seam flaw detection inspection and paint brushing are sequentially carried out on the B ring.
In the fifth embodiment, the shield body comprises an a ring which comprises a fifth ring 55 and a main drive 9, the positioning devices connected with the a ring are 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 of the fifth ring 55 of the a ring where the cutting line 1 is arranged, and the special-shaped positioning plate 8 is arranged at the position of the main drive 9 of the a ring where the cutting line is arranged.
The position of a cutting line 1 of the ring A is shown in figure 5, the cutting line 1 avoids the damage of a reinforcing rib of the ring A, a bolt mounting hole of a main drive 9 and other components, the cutting line 1 divides the ring A into an upper part and a lower part, an anti-deformation support 2 is required to be made on the ring A by I-shaped steel before cutting, two I-shaped steel bars are respectively arranged on the upper part and the lower part of the ring A, a rectangular joint surface is arranged at the position of the cutting line arranged on the outer side of a fifth ring 55 of the ring A, in order to enable a positioning device to be well welded on the outer side of the fifth ring 55 of the ring A, namely the positioning device and the outer side of the fifth ring 55 to be jointed as far as possible, the positioning accuracy is improved, two groups of rectangular bolt connecting flange plates 4 are selected to be arranged at the joint of the outer side of the fifth ring 55 of the ring A and the cutting line 1, in order to avoid the deformation and the convenient recovery of the mounting, considering that the casing of the ring A, the mounting seat of the main drive 9, the soil bin partition plate and the connecting flange plate need to be cut, as shown in FIG. 11, the notches formed by the four devices are suitable for being shaped like a special-shaped rectangle, namely a figure formed by cutting a right angle away, or suitable for being shaped like a rectangular positioning device, 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, so that the weight of the rectangular bolt connecting positioning plate is larger than that of the special-shaped positioning plate 8, the shape of the positioning device is selected to be shaped like a special shape, and a group is respectively arranged on the left and the right, as shown in FIG. 5, each group of rectangular bolt connecting flange plates 4 is formed by overlapping two identical rectangular bolt connecting flange plates 4 and is connected through bolts and positioning pins, an intermediate plate is also arranged between the two rectangular bolt connecting flange plates 4, and the shape of the intermediate plate is, the width of the middle plate is smaller than that of the rectangular bolt connecting flange plate 4, the rectangular bolt connecting flange plate 4 is provided with four bolt holes and two positioning pin holes, the middle plate is also provided with through holes with the same number and matching, one side of the two rectangular bolt connecting flange plates 4 is fixed at the position of the shell of the A ring where the cutting line 1 is arranged by welding, the stacking direction of the rectangular bolt connecting flange plates 4 is simultaneously vertical to the axial directions of the cutting line 1 and the A ring, a gap is arranged between the middle plate and the fifth ring 55 of the A ring, namely the middle plate is not contacted with the fifth ring 55 of the A ring, the middle plate is arranged between the two rectangular bolt connecting flange plates 4, the position of the cutting line 1 corresponds to the central line of the middle plate, the two rectangular bolt connecting flange plates 4 are distributed at the two sides of the cutting line 1, when the A ring is divided along the cutting line 1, the middle plate can not be cut, meanwhile, in order to avoid the deformation of the mounting structure of the A-ring main drive 9 and facilitate the recovery, two groups of special-shaped positioning plates 8 are welded at the position of the cutting line 1 arranged on the side of the A-ring main drive 9, a group is respectively arranged on the left and the right, each group of special-shaped positioning plates 8 are formed by overlapping two same special-shaped positioning plates 8 and are connected through bolts and positioning pins, an intermediate plate is also arranged between the two special-shaped positioning plates 8, the shape of the intermediate plate is the same as that of the special-shaped positioning plates 8, but the length of all edges of the intermediate plate is smaller than that of the corresponding side length of the special-shaped positioning plates 8, the special-shaped positioning plates 8 and the intermediate plate are respectively provided with through holes which are matched with the bolts and the positioning pins, the edges of the two special-shaped positioning plates 8 are fixed at the main drive 9 of the A-ring by, On the soil bin partition plate and the connecting flange plate, as shown in fig. 11, the stacking direction of the special-shaped positioning plate 8 is simultaneously vertical to the axial direction of the cutting line 1 and the ring A, a gap is formed between the middle plate and the main drive 9 of the ring A, namely the middle plate is not contacted with the main drive 9 of the ring A, the middle plate is arranged between the two special-shaped positioning plates 8, the position of the cutting line 1 corresponds to the central line of the middle plate, when the ring A is divided along the cutting line 1, the middle plate cannot be cut, each side of the special-shaped positioning plate 8 is respectively welded on the shell of the ring A, the mounting seat of the main drive 9, the soil bin partition plate and the connecting flange plate, namely, gaps are respectively formed between the middle plate and the shell of the ring A, the mounting seat of the main; cutting from the middle position of the ring A to two sides of the ring A along a cutting line 1 by using a flame cutting machine, detaching all bolts and positioning pins after the cutting is finished, cutting the ring A 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 ring A 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 cutter head; 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 middle plate is arranged between the two positioning devices which are overlapped with each other, the shape of the middle plate is the same as that of the positioning devices, the side length of the middle plate is smaller than the length of the corresponding side of the positioning devices, so that a gap is formed between the shield body and the two positioning devices which are overlapped, a bulge can also be arranged at the end surface of the positioning devices close to the middle position, the two positioning devices which are overlapped with each other are symmetrically arranged, the bulges on the two positioning devices are respectively in contact fit, a certain distance is formed between the bulge and each side of the positioning devices, the distance range is 1cm-3cm, and the height range of the bulge is 1cm-3cm, so that a gap is formed between the shield body and the two positioning devices which are overlapped.
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 (10)
1. The utility model provides a shield constructs dismantlement structure of machine, includes the several shield body, be provided with line of cut (1), its characterized in that on each shield body: still include positioner, positioner symmetry sets up in line of cut (1) both sides, the corresponding positioner stack setting in line of cut (1) both sides, through detachable construction fixed connection between the positioner that superposes each other, the shield body with have the gap between two positioner three that overlap.
2. The shield tunneling machine dismounting structure 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 shield body.
3. The shield tunneling machine dismounting structure according to claim 1, characterized in that: the shield is characterized in that the shield body is provided with an anti-deformation support (2), and the anti-deformation support (2) is I-shaped steel or a steel pipe.
4. The shield tunneling machine dismounting structure according to claim 1, characterized in that: the shield body includes the blade disc, the blade disc includes first ring (51) and spoke roof beam (6), and the positioner who is connected with the blade disc is arc bolted flange board (3) and rectangle bolted flange board (4), rectangle bolted flange board (4) set up the position that is provided with line of cut (1) in the first ring (51) outside of blade disc, arc bolted flange board (3) set up the position that is provided with line of cut (1) in spoke roof beam (6) of blade disc.
5. The shield tunneling machine dismounting structure according to claim 1, characterized in that: the shield body includes the D ring, the D ring includes second ring (52), and the positioner who is connected with the D ring is rectangle bolted connection flange board (4), rectangle bolted connection flange board (4) set up the position that is provided with line of cut (1) in the second ring (52) outside of D ring.
6. The shield tunneling machine dismounting structure according to claim 1, characterized in that: the shield body includes C ring, C ring includes third ring (53), and the positioner who is connected with C ring includes accurate triangle-shaped locating plate (7), accurate triangle-shaped locating plate (7) set up the position that is provided with line of cut (1) in third ring (53) inboard of C ring.
7. The shield tunneling machine dismounting structure according to claim 1, characterized in that: the shield body includes B ring, B ring includes fourth ring (54), and the positioner who is connected with B ring is rectangle bolted connection flange board (4) and accurate triangle-shaped locating plate (7), rectangle bolted connection flange board (4) set up the position that is provided with line of cut (1) in fourth ring (54) outside of B ring, accurate triangle-shaped locating plate (7) set up the position that is provided with line of cut (1) in fourth ring (5) inboard of B ring.
8. The shield tunneling machine dismounting structure according to claim 1, characterized in that: the shield body includes A ring, A ring includes fifth ring (55) and main drive (9), and the positioner who is connected with A ring is rectangle bolted flange board (4) and dysmorphism locating plate (8), rectangle bolted flange board (4) are established and are provided with the position of line of cut (1) in fifth ring (55) outside of A ring, dysmorphism locating plate (8) set up the position that is provided with line of cut (1) in main drive (9) of A ring.
9. A method for dismounting a dismounting structure of a shield tunneling machine using the shield tunneling machine of claim 1, comprising the steps of:
the method comprises the following steps: determining the disassembly sequence of each shield body of the shield machine;
step two: determining the cutting line position of each shield body of the shield machine;
step three: the shield body is provided with an anti-deformation supporting device, a positioning device is arranged at the position of a cutting line, the positioning devices are symmetrically arranged at two sides of the cutting line, the positioning devices corresponding to the two sides of the cutting line are overlapped, and the positioning devices which are mutually overlapped are fixedly connected by a detachable structure;
step four: cutting the shield body along the cutting line, separating the shield body from the shield machine main body after the cutting is finished, disassembling the positioning devices which are mutually overlapped, and separating the shield body after the cutting is finished.
10. A repair method for a disassembled structure of a shield tunneling machine, which is applied to the shield tunneling machine of claim 1, and comprises the following steps:
the method comprises the following steps: splicing the detached and separated shield bodies according to cutting lines, superposing the positioning devices installed during detachment one by one again to ensure that the positions of the separated shield bodies are accurate, and then fixedly connecting the positioning devices which are superposed correspondingly to each other again;
step two: inspecting the shield body, adjusting the position with improper size and shape caused by inaccurate splicing, and welding the shield body after determining that the splicing is correct;
step three: and after the welding is confirmed to be correct, the deformation-preventing support and the positioning device are disassembled, and the size and the weld seam flaw detection of the shield body are sequentially checked.
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| CN201910924532.7A CN110671121A (en) | 2019-09-23 | 2019-09-23 | Disassembly structure, disassembly method and repair method of shield machine |
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| CN201910924532.7A CN110671121A (en) | 2019-09-23 | 2019-09-23 | Disassembly structure, disassembly method and repair method of shield machine |
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| CN111250819A (en) * | 2020-02-15 | 2020-06-09 | 盾构及掘进技术国家重点实验室 | Method for welding cutter head and cutter of shield machine in high-pressure environment |
| CN112253144A (en) * | 2020-08-31 | 2021-01-22 | 辽宁三三工业有限公司 | Rear supporting device of shield tunneling machine and mounting method thereof |
| CN113047855A (en) * | 2021-03-31 | 2021-06-29 | 中铁十六局集团北京轨道交通工程建设有限公司 | Novel shield cutter head based on existing cutter head reducing transformation and construction method thereof |
| CN113273387A (en) * | 2021-04-09 | 2021-08-20 | 江苏大学 | Regenerated rice harvesting header with disc cutting knife and harvester provided with header |
| CN114961759A (en) * | 2022-07-29 | 2022-08-30 | 北京建工土木工程有限公司 | Modular double-shell shield host and shelling, disassembling and remanufacturing method thereof |
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| CN111250819A (en) * | 2020-02-15 | 2020-06-09 | 盾构及掘进技术国家重点实验室 | Method for welding cutter head and cutter of shield machine in high-pressure environment |
| CN111250819B (en) * | 2020-02-15 | 2021-08-13 | 盾构及掘进技术国家重点实验室 | Method for welding cutter head and cutter of shield machine in high-pressure environment |
| CN112253144A (en) * | 2020-08-31 | 2021-01-22 | 辽宁三三工业有限公司 | Rear supporting device of shield tunneling machine and mounting method thereof |
| CN112253144B (en) * | 2020-08-31 | 2022-08-02 | 辽宁三三工业有限公司 | Rear supporting device of shield tunneling machine and mounting method thereof |
| CN113047855A (en) * | 2021-03-31 | 2021-06-29 | 中铁十六局集团北京轨道交通工程建设有限公司 | Novel shield cutter head based on existing cutter head reducing transformation and construction method thereof |
| CN113047855B (en) * | 2021-03-31 | 2024-03-15 | 中铁十六局集团北京轨道交通工程建设有限公司 | New shield cutter head based on existing cutter head reducing transformation and construction method thereof |
| CN113273387A (en) * | 2021-04-09 | 2021-08-20 | 江苏大学 | Regenerated rice harvesting header with disc cutting knife and harvester provided with header |
| CN114961759A (en) * | 2022-07-29 | 2022-08-30 | 北京建工土木工程有限公司 | Modular double-shell shield host and shelling, disassembling and remanufacturing method thereof |
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