CN117404097B - Construction method for taking out broken bolts on cutter head of shield tunneling machine - Google Patents
Construction method for taking out broken bolts on cutter head of shield tunneling machine Download PDFInfo
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- CN117404097B CN117404097B CN202311521344.2A CN202311521344A CN117404097B CN 117404097 B CN117404097 B CN 117404097B CN 202311521344 A CN202311521344 A CN 202311521344A CN 117404097 B CN117404097 B CN 117404097B
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- electric spark
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- broken
- machine
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- 238000010276 construction Methods 0.000 title claims abstract description 20
- 230000005641 tunneling Effects 0.000 title claims abstract description 18
- 238000003754 machining Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000013049 sediment Substances 0.000 claims abstract description 4
- 238000010892 electric spark Methods 0.000 claims description 127
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- 229910052799 carbon Inorganic materials 0.000 claims description 21
- 239000000498 cooling water Substances 0.000 claims description 16
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- 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
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a construction method for taking out broken bolts on a cutter head of a shield machine, which comprises the following steps: clearing up sediment in bolt holes at the positions of broken bolts on a cutter head of the shield tunneling machine and around the bolt holes; installing and fixing a first bolt taking tool, electrifying the first bolt taking tool by water, and machining an inner hexagonal groove in a broken bolt through the first bolt taking tool; after the inner hexagonal groove is machined to a set depth, the first bolt taking tool is taken down; and extending the second bolt taking tool into the bolt hole to rotate and take out the broken bolt. The first bolt taking tool is used for machining the inner hexagonal groove on the broken bolt, the second bolt taking tool is used for taking out the broken bolt, construction is quick and effective, simplicity and convenience are achieved, and the broken bolt taking process is time-saving and labor-saving. The design of the first bolt taking tool can conveniently and rapidly process the inner hexagonal groove on the broken bolt, thereby bringing convenience for subsequent broken bolt taking and simplifying the broken bolt taking process.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a construction method for taking out broken bolts on a cutter head of a shield machine.
Background
The shield tunneling machine is a special engineering machine for tunneling, has the functions of cutting soil body by excavation, transporting soil residues, splicing tunnel lining, measuring, guiding, correcting deviation and the like, and is high-tech construction equipment for realizing one-time tunneling, soil discharge, support and the like in tunneling engineering, and widely used for tunnel engineering of urban rail transit, railway, highway, municipal administration, hydropower and the like.
In use of the shield machine, the cutter head bolts are broken, but the cutter head bolts are broken by one or two pieces, so that the construction process is not affected at all, and the cutter head bolts are pulled to a factory for unified maintenance after the excavated tunnel is completed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention designs a construction method for taking out broken bolts on a cutter head of a shield machine, which comprises the following steps: step 1, cleaning sediment in bolt holes at the positions of broken bolts on a cutter head of a shield tunneling machine and surrounding the bolt holes; step 2, installing and fixing a first bolt taking tool, electrifying the first bolt taking tool through water, and machining an inner hexagonal groove in a broken bolt through the first bolt taking tool; step 3, after the machining of the inner hexagonal groove reaches a set depth, taking down the first bolt taking tool; and 4, extending a second bolt taking tool into the bolt hole, and rotating to take out the broken bolt.
Preferably, the first bolting means comprises: the electric spark machine head, the electric spark machine clamping head, the electric spark lengthening bar, the electric spark positioning sleeve, the electric spark carbon head, the electric spark cooling water pipe and the electric spark base; the electric spark machine chuck and the electric spark base are fixedly arranged on the electric spark machine head; the electric spark lengthening bar is arranged on the clamping head of the electric spark machine, the electric spark carbon head is arranged at the end part of the electric spark lengthening bar, and the electric spark positioning sleeve is sleeved on the outer side of the electric spark lengthening bar; the electric spark cooling water pipe is arranged on the electric spark positioning sleeve.
Preferably, in step 2, the first bolting tool is installed and fixed, comprising the steps of: assembling a first bolt taking tool; and installing a first bolt taking tool.
Preferably, assembling the first bolting tool comprises the steps of: the electric spark machine chuck and the electric spark base are fixedly arranged on the electric spark machine head; the electric spark carbon head is arranged at one end of the electric spark extension bar, the electric spark positioning sleeve is sleeved on the electric spark extension bar, and the other end of the electric spark extension bar is arranged on the clamping head of the electric spark machine; and fixing the electric spark cooling water pipe on the electric spark positioning sleeve.
Preferably, the mounting of the first bolting means comprises the steps of: installing an electric spark extension bar, an electric spark positioning sleeve, an electric spark carbon head and an electric spark cooling water pipe in a bolt hole at the position of a broken bolt on a cutter head of the shield machine; and installing the electric spark base on a cutter head of the shield tunneling machine.
Preferably, the electric spark positioning sleeve is of a hollow structure, and a limiting groove is formed in the outer side of the electric spark positioning sleeve; the hollow inner diameter of the electric spark positioning sleeve is 0.3 plus or minus 0.1mm larger than the outer diameter of the electric spark extension rod; the electric spark cooling water pipe is arranged in the limiting groove.
Preferably, the second bolt taking tool adopts an internal hexagonal 17 mm spanner, and the structure of the electric spark carbon head is matched with that of the second bolt taking tool.
Preferably, the electric spark positioning sleeve is made of wool fabric.
Preferably, the material of the electric spark carbon head is red copper or brass.
Preferably, in step 3, the predetermined depth is 2cm to 3cm.
Compared with the closest prior art, the invention has the beneficial effects that:
The method is characterized in that a large number of cutter head bolts are broken under the condition of complex underground construction environment, so that when construction cannot be continued, the shield machine needs to be maintained under the condition that the bolt holes of the cutter head bolts are 38mm in general diameter and 400mm in depth, broken bolts are quite difficult to take out, the cutter head of the shield machine needs to be transported to a factory for maintenance according to the thought of maintaining the cutter head of the shield machine, holes are formed in the positions of the shield machine to the ground before transportation, and then the cutter head is hung to the ground.
Based on the problems, the first bolt taking tool can process the hexagon socket on the broken bolt in the thin and deep threaded hole, then the broken bolt is taken out through the second bolt taking tool, the first bolt taking tool can finish work under the condition of water and electricity, and the shield tunneling machine cutterhead can be maintained without complex procedures of hole punching, transportation, hole backfilling and the like, so that the construction efficiency is improved. And through the design to first bolt instrument of getting, provide a new thinking for underground maintenance shield constructs quick-witted blade disc, overcome the unable problem of taking out the broken bolt in the long and thin bolt hole in the underground tunnel, first bolt instrument of getting cyclic utilization, green has reduced project loss expense, has reduced project cost.
Drawings
Fig. 1 is a schematic structural view of a broken bolt in a cutter head of a shield machine.
Fig. 2 is a first structural schematic diagram of the operation of the first bolting tool according to the invention.
FIG. 3 is a second schematic view of the operation of the first bolting tool of the invention.
Fig. 4 is a schematic structural diagram of the second bolting tool according to the invention.
Fig. 5 is a schematic view of the structure of the broken bolt of the present invention after being taken out.
Fig. 6 is a schematic structural view of a first bolting tool according to the invention.
Fig. 7 is a schematic structural view of the spark positioning sleeve of the present invention.
Fig. 8 is a schematic structural view of an electric spark carbon head according to the present invention.
Fig. 9 is a schematic structural view of a second bolting tool according to the invention.
Reference numerals:
The device comprises a cutter head of a shield machine, a 2-broken bolt, a 3-first bolt taking tool, a 31-electric spark machine head, a 32-electric spark machine chuck, a 33-electric spark extension bar, a 34-electric spark positioning sleeve, a 35-electric spark carbon head, a 36-electric spark cooling water pipe, a 37-electric spark base and a 4-second bolt taking tool.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1 to 9, the invention provides a construction method for taking out broken bolts on a cutter head of a shield tunneling machine, which comprises the following steps:
Step one, cleaning sediment in bolt holes at the positions of broken bolts 2 and around the bolt holes on a cutter head 1 of the shield tunneling machine;
and step two, installing and fixing a first bolt taking tool 3, electrifying the first bolt taking tool 3 by water, and processing the inner hexagonal groove on the broken bolt 2 through the first bolt taking tool 3.
Wherein the first bolting tool 3 comprises: the electric spark machine head 31, the electric spark machine clamping head 32, the electric spark lengthening bar 33, the electric spark positioning sleeve 34, the electric spark carbon head 35, the electric spark cooling water pipe 36 and the electric spark base 37; the electric discharge machine chuck 32 and the electric discharge machine base 37 are fixedly arranged on the electric discharge machine head 31; the electric spark lengthening bar 33 is arranged on the electric spark machine clamping head 32, the electric spark carbon head 35 is arranged at the end part of the electric spark lengthening bar 33, and the electric spark positioning sleeve 34 is sleeved outside the electric spark lengthening bar 33; a spark cooling water pipe 36 is provided on the spark positioning sleeve 34. Preferably, the electric spark positioning sleeve 34 is of a hollow structure, and a limiting groove is formed in the outer side of the electric spark positioning sleeve 34; the hollow inner diameter of the electric spark positioning sleeve 34 is 0.3 plus or minus 0.1mm larger than the outer diameter of the electric spark extension rod 33; the spark cooling water pipe 36 is installed in the limiting groove. The spark positioning sleeve 34 is made of wool fabric. The spark carbon head 35 is made of red copper or brass. The design of the first bolt taking tool can conveniently and rapidly process the inner hexagonal groove on the broken bolt, thereby bringing convenience for subsequent broken bolt taking and simplifying the broken bolt taking process.
The first bolting tool 3 comprises the following steps:
Assembling a first bolt taking tool 3:
The electric spark machine clamping head 32 and the electric spark base 37 are fixedly arranged on the electric spark machine head 31; the electric spark carbon head 35 is arranged at one end of the electric spark extension rod 33, the electric spark positioning sleeve 34 is sleeved on the electric spark extension rod 33, and the other end of the electric spark extension rod 33 is arranged on the clamping head 32 of the electric spark machine; the spark cooling water pipe 36 is fixed to the spark positioning sleeve 34.
Installing a first bolt taking tool 3:
The electric spark lengthening bar 33, the electric spark positioning sleeve 34, the electric spark carbon head 35 and the electric spark cooling water pipe 36 are arranged in bolt holes at the position of the broken bolt 2 on the shield tunneling machine cutterhead 1; the electric spark base 37 is arranged on the shield tunneling machine cutterhead 1. During installation, care needs to be taken that the electric spark extension rod 33, the electric spark positioning sleeve 34, the electric spark carbon head 35 and the fracture bolt are concentric.
And thirdly, after the machining of the inner hexagonal groove reaches a set depth, taking down the first bolt taking tool 3. Wherein the predetermined depth is 2cm-3cm.
And fourthly, extending a second bolt taking tool 4 into the bolt hole to rotate and take out the broken bolt 2. Preferably, the second bolt taking tool 4 adopts a hexagonal 17 mm spanner, and the structure of the electric spark carbon head 35 is matched with that of the second bolt taking tool 4.
According to the invention, the first bolt taking tool is used for machining the inner hexagonal groove on the broken bolt, and the second bolt taking tool is used for taking out the broken bolt, so that the construction is quick and effective, simple and convenient, and the broken bolt taking process is time-saving and labor-saving. The first bolt taking tool and the second bolt taking tool can be recycled after being used, so that the method is environment-friendly, project loss cost is reduced, and project cost is reduced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention as filed.
Claims (6)
1. The construction method for taking out the broken bolt on the cutter head of the shield tunneling machine is characterized by comprising the following steps:
Step 1, cleaning sediment in a slender bolt hole and around the bolt hole at the position of a broken bolt (2) on a cutter head (1) of the shield tunneling machine;
step 2, installing and fixing a first bolt taking tool (3), and electrifying the first bolt taking tool (3) by water, and processing an inner hexagonal groove on the broken bolt (2) through the first bolt taking tool (3);
Wherein the first bolt taking tool (3) comprises: the electric spark machine head (31), an electric spark machine clamping head (32), an electric spark lengthening bar (33), an electric spark positioning sleeve (34), an electric spark carbon head (35), an electric spark cooling water pipe (36) and an electric spark base (37);
The electric spark machine clamping head (32) and the electric spark base (37) are fixedly arranged on the electric spark machine head (31);
The electric spark lengthening rod (33) is arranged on the electric spark machine clamping head (32), the electric spark carbon head (35) is arranged at the end part of the electric spark lengthening rod (33), and the electric spark positioning sleeve (34) is sleeved on the outer side of the electric spark lengthening rod (33);
The electric spark cooling water pipe (36) is arranged on the electric spark positioning sleeve (34);
the first bolt taking tool (3) comprises the following steps:
Assembling a first bolt taking tool (3): the electric spark machine clamping head (32) and the electric spark base (37) are fixedly arranged on the electric spark machine head (31); the electric spark carbon head (35) is arranged at one end of the electric spark extension rod (33), an electric spark positioning sleeve (34) is sleeved on the electric spark extension rod (33), and the other end of the electric spark extension rod (33) is arranged on the clamping head (32) of the electric spark machine; fixing an electric spark cooling water pipe (36) on the electric spark positioning sleeve (34);
installing a first bolt taking tool (3): the electric spark lengthening bar (33), the electric spark positioning sleeve (34), the electric spark carbon head (35) and the electric spark cooling water pipe (36) are arranged in bolt holes at the position of a broken bolt (2) on a cutter head (1) of the shield tunneling machine; the electric spark base (37) is arranged on a cutter head (1) of the shield tunneling machine;
step 3, after the machining of the inner hexagonal groove reaches a set depth, taking down the first bolt taking tool (3);
and 4, extending a second bolt taking tool (4) into the bolt hole, and rotating to take out the broken bolt (2).
2. The construction method for removing broken bolts on a cutter head of a shield machine according to claim 1, wherein the electric spark positioning sleeve (34) is of a hollow structure, and a limit groove is formed on the outer side of the electric spark positioning sleeve (34);
The hollow inner diameter of the electric spark positioning sleeve (34) is 0.3 plus or minus 0.1mm larger than the outer diameter of the electric spark extension rod (33);
The electric spark cooling water pipe (36) is arranged in the limiting groove.
3. The construction method for removing broken bolts on a cutter head of a shield machine according to claim 1, wherein the second bolt removing tool (4) adopts a hexagonal 17 mm wrench, and the structure of the electric spark carbon head (35) is matched with that of the second bolt removing tool (4).
4. The construction method for removing broken bolts on a cutter head of a shield machine according to claim 1, wherein the electric spark positioning sleeve (34) is made of a wool rod.
5. The construction method for removing broken bolts on a cutter head of a shield machine according to claim 1, wherein the electric spark carbon head (35) is made of red copper or brass.
6. The construction method for removing broken bolts from a cutterhead of a shield machine according to claim 1, wherein in the step 3, the predetermined depth is 2cm to 3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311521344.2A CN117404097B (en) | 2023-11-15 | 2023-11-15 | Construction method for taking out broken bolts on cutter head of shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311521344.2A CN117404097B (en) | 2023-11-15 | 2023-11-15 | Construction method for taking out broken bolts on cutter head of shield tunneling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117404097A CN117404097A (en) | 2024-01-16 |
| CN117404097B true CN117404097B (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311521344.2A Active CN117404097B (en) | 2023-11-15 | 2023-11-15 | Construction method for taking out broken bolts on cutter head of shield tunneling machine |
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| Country | Link |
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| CN (1) | CN117404097B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216242A (en) * | 2012-11-20 | 2013-07-24 | 山东天工岩土工程设备有限公司 | Anti-loose structure of cutter for shield tunneling machine |
| CN103448026A (en) * | 2013-08-08 | 2013-12-18 | 吉林龙源风力发电有限公司 | Method for fetching broken bolts from bolt holes |
| CN204002807U (en) * | 2014-06-18 | 2014-12-10 | 中铁隧道集团二处有限公司 | A kind of cutter head of shield machine connecting bolt locking mechanism |
| CN207344508U (en) * | 2017-08-14 | 2018-05-11 | 河北大唐国际新能源有限公司 | Fan blade break bolt extraction device |
| CN207863961U (en) * | 2018-01-19 | 2018-09-14 | 青岛韵展工贸有限公司 | A kind of shield machine tearing cutter fixing device |
-
2023
- 2023-11-15 CN CN202311521344.2A patent/CN117404097B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216242A (en) * | 2012-11-20 | 2013-07-24 | 山东天工岩土工程设备有限公司 | Anti-loose structure of cutter for shield tunneling machine |
| CN103448026A (en) * | 2013-08-08 | 2013-12-18 | 吉林龙源风力发电有限公司 | Method for fetching broken bolts from bolt holes |
| CN204002807U (en) * | 2014-06-18 | 2014-12-10 | 中铁隧道集团二处有限公司 | A kind of cutter head of shield machine connecting bolt locking mechanism |
| CN207344508U (en) * | 2017-08-14 | 2018-05-11 | 河北大唐国际新能源有限公司 | Fan blade break bolt extraction device |
| CN207863961U (en) * | 2018-01-19 | 2018-09-14 | 青岛韵展工贸有限公司 | A kind of shield machine tearing cutter fixing device |
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| Publication number | Publication date |
|---|---|
| CN117404097A (en) | 2024-01-16 |
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