CN108356433A - TBM cutterheads and base bearing repair method - Google Patents
TBM cutterheads and base bearing repair method Download PDFInfo
- Publication number
- CN108356433A CN108356433A CN201810204318.XA CN201810204318A CN108356433A CN 108356433 A CN108356433 A CN 108356433A CN 201810204318 A CN201810204318 A CN 201810204318A CN 108356433 A CN108356433 A CN 108356433A
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- CN
- China
- Prior art keywords
- cutterhead
- welding
- base bearing
- welded
- repair method
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Classifications
-
- 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
-
- 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
- B23P6/00—Restoring or reconditioning objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of TBM cutterheads and base bearing repair method, the above method can accurately position cutterhead in such a way that anchor pole coordinates with spacer pad, and then the separation of cutterhead and base bearing is realized by jack, the lip packing and dust seal in being held by changing main-spindle and the welding manner realization said program to cutterhead damaged part.The repair method solves the technical issues of cutterhead and base bearing fail in the shield machine course of work, effectively extends the shield machine service life, improves shield efficiency.
Description
Technical field
The invention belongs to shield machine repair field more particularly to a kind of TBM cutterheads and base bearing repair method.
Background technology
Shield machine mainly realizes driving, therefore knife by the various cutters on cutterhead to the extrusion shearing of ground
Disk is the core component of shield machine.Shield machine cutterhead in tunneling process is directly contacted with working face, in the course of time on cutterhead
The main components such as compartment have larger abrasion, panel abrasion to be particularly acute, the impurity meeting such as dust, water for being generated in tunneling process
It is entered in base bearing and gear-box by lip packing and dust seal through cutterhead, while gear oil also can iris out fat from interior
Mouth outflow causes cutterhead and base bearing to fail.
Invention content
In order to solve the above technical problems, the present invention provides a kind of TBM cutterheads and base bearing repair method, the repair method
It solves the technical issues of cutterhead and base bearing fail in the shield machine course of work, effectively extends the shield machine service life, improve
Shield efficiency.
For achieving the above object, the present invention is with the following method：
When shield machine tunnels and seals cross section place to quasi- replacement, rotating cutter-head is to scraping cinder hole with tunnel center line at symmetrical before shutting down
Position, so as to installing for fixing anchor bar and lip block；
Anchor pole is buried on the palisades of periphery using the cinder hole of scraping on cutter head center line top, and after anchoring securely, all anchor poles are welded
In on cutterhead side wall；If anchor pole is not easy to directly weld with cutterhead, steel plate can be used as connector, be welded in knife
On disk, then anchor pole is welded on junction steel plate again, it is with this that cutterhead and anchor pole connection is integral, it is fixed on palisades；
The superposition of slag piece will be scraped and be welded together as cutter head support cushion block, cinder hole is scraped by lip block by cutter head center line lower part
It is installed between cutterhead and scar, to ensure the firm of lip block, it is necessary first to clean out scar void slag, ensure support
Cushion block is contacted with complete scar, then increases the face of contact of the cushion block with cutterhead using wedge-shaped steel cushion block, to block as far as possible
Dead cutterhead, while cushion block and cutterhead can be welded together；
The position that need not be rebuild among cutter head panel selects four points, welds four I-steel and contacts working face, rises solid
The effect of stationary knife disk and working face；
The attachment bolt between cutterhead and base bearing is gradually loosened, jack is installed between cutterhead rear end steel plate and shield,
It is carried out at the same time reinforcing cutterhead and base bearing is made to refer to and buckle disengagings, interior triumphant rack retreats, and required working space is sealed to provide to replace；
The lip packing worn on base bearing, dust seal are removed, the residue in groove is cleared up, groove is damaged with polishing machine
Position polishes smooth smooth, re-replaces lip packing and dust seal；
Cutterhead retreats, and builds man-made support in cutterhead front, is welded to cutterhead damaged part.
The welding includes the following steps：
1, all welding positions are rinsed well, and will be thoroughly dried around it, there cannot be water instillation；Then it is polished dry
Only；
2, each hole for boring a 5mm at the point of crackle both ends is drilled through with electric hand drill；Then it is clamped from two holes to centre with carbon plane
Plane, until can't see crackle；Plane can form a double V-groove after holding, angle is 30-40 °, and groove lower end requires to be less than
Groove is polished flat with abrasive machine and ensures the impurity such as no coating by 10mm later；
3, before welding, welding rod is heated to 300 ° or so, keeps the temperature 1--2 hour, drying, with baking with.
4, welding uses reversal connection mode, i.e. anode to connect soldering turret；DC low current short arc operation；Before welding, by cracks plus
Heat starts to weld to 80-100 degree；Using 3.2mm507 welding rods or welding wire bottoming, 4.0mm507 welding rods built-up welding or straight is then used
It connects and is welded using CO2 shield welder；Often weldering together, is polished off impurity with abrasive machine；After welding, it is heated to
250--300 degree or so, natural cooling.
Technique effect：
1, repair method of the invention can effectively repair the cutterhead and base bearing of failure, be coordinated using anchor pole and spacer pad
Mode can accurately position cutterhead, and then the accurate separation for realizing cutterhead and base bearing, and standard is provided for subsequent renovation process
Determine position；
2, repair method of the invention can effectively extend shield machine service life, save production cost, shorten the construction period；
3, the welding method in the present invention effectively ensures the bonding strength of each component of cutterhead after repairing, and reuses long lifespan,
It saves production cost and shortens maintenance time.
Description of the drawings：
1, Fig. 1 is cutterhead location structure front view.
Specific implementation mode：
TBM cutterheads and base bearing repair method, when shield machine tunnels and seals cross section place to quasi- replacement, rotating cutter-head before shutting down
1 to scraping cinder hole 3 and tunnel center line into symmetric position, so as to installing for fixing anchor bar 2 and lip block 4；
Anchor pole 2 is buried on the palisades of periphery using the cinder hole of scraping on cutterhead in addition to bottom, and after anchoring securely, all anchor poles 2 are welded
It is connected on 1 side wall of cutterhead；If anchor pole is not easy to directly weld with cutterhead, steel plate can be used as connector, welded
In on cutterhead 1, then anchor pole 2 is welded on junction steel plate again, is connected cutterhead 1 and anchor pole 2 with this integral, is fixed on rock
On wall；
The superposition of slag piece will be scraped and be welded together as cutter head support cushion block 4, cinder hole is scraped by supporting pad by cutter head center line lower part
Block is installed between cutterhead and scar, to ensure the firm of lip block 4, it is necessary first to clean out scar void slag, ensure
Lip block 4 is contacted with complete scar, then increases the face of cushion block and the contact of cutterhead 1 using wedge-shaped steel cushion block, to the greatest extent may be used
The stuck cutterhead 1 of energy, while cushion block and cutterhead can be welded together；
The position that need not be rebuild among 1 panel of cutterhead selects four points, welds four I-steel and contacts working face, rises solid
The effect of stationary knife disk 1 and working face；
The attachment bolt between cutterhead and base bearing is gradually loosened, jack is installed between cutterhead rear end steel plate and shield,
It is carried out at the same time reinforcing cutterhead and base bearing is made to refer to and buckle disengagings, interior triumphant rack retreats, and required working space is sealed to provide to replace；
The lip packing worn on base bearing, dust seal are removed, the residue in groove is cleared up, groove is damaged with polishing machine
Position polishes smooth smooth, re-replaces lip packing and dust seal；
Cutterhead retreats, and builds man-made support in cutterhead front, is welded to cutterhead damaged part.
The welding includes the following steps：
1, all welding positions are rinsed well, and will be thoroughly dried around it, there cannot be water instillation；Then it is polished dry
Only；
2, each hole for boring a 5mm at the point of crackle both ends is drilled through with electric hand drill；Then it is clamped from two holes to centre with carbon plane
Plane, until can't see crackle；Plane can form a double V-groove after holding, angle is 30-40 °, and groove lower end requires to be less than
Groove is polished flat with abrasive machine and ensures the impurity such as no coating by 10mm later；
3, before welding, welding rod is heated to 300 ° or so, keeps the temperature 1--2 hour, drying, with baking with；
4, welding uses reversal connection mode, i.e. anode to connect soldering turret；DC low current short arc operation；Before welding, cracks are heated to
80-100 degree starts to weld；Using 3.2mm507 welding rods or welding wire bottoming, then adopt using the built-up welding of 4.0mm507 welding rods or directly
It is welded with CO2 shield welder；Often weldering together, is polished off impurity with abrasive machine；After welding, it is heated to 250--
300 degree or so, natural cooling.
Claims (3)
1. a kind of TBM cutterheads and base bearing repair method, it is characterised in that include the following steps：
When shield machine tunnels and seals cross section place to quasi- replacement, rotating cutter-head is to scraping cinder hole with tunnel center line at symmetrical before shutting down
Position, so as to installing for fixing anchor bar and lip block；
Anchor pole is buried on the palisades of periphery using the cinder hole of scraping on cutter head center line top, and after anchoring securely, all anchor poles are welded
In on cutterhead side wall；
The superposition of slag piece will be scraped and be welded together as cutter head support cushion block, cinder hole is scraped by lip block by cutter head center line lower part
It is installed between cutterhead and scar, to ensure the firm of lip block, it is necessary first to clean out scar void slag, ensure support
Cushion block is contacted with complete scar, then increases the face of contact of the cushion block with cutterhead using wedge-shaped steel cushion block；
The position that need not be rebuild among cutter head panel selects four points, welds four I-steel and contacts working face, rises solid
The effect of stationary knife disk and working face；
The attachment bolt between cutterhead and base bearing is gradually loosened, jack is installed between cutterhead rear end steel plate and shield,
It is carried out at the same time reinforcing cutterhead and base bearing is made to refer to and buckle disengagings, interior triumphant rack retreats, and required working space is sealed to provide to replace；
The lip packing worn on base bearing, dust seal are removed, the residue in groove is cleared up, groove is damaged with polishing machine
Position polishes smooth smooth, re-replaces lip packing and dust seal；
Cutterhead retreats, and builds man-made support in cutterhead front, is welded to cutterhead damaged part.
2. a kind of TBM cutterheads according to claim 1 and base bearing repair method, it is characterised in that：The welding includes
Following steps：
1）All welding positions are rinsed well, and will thoroughly be dried around it, there cannot be water instillation；Then it is polished dry
Only；
2）With electric hand drill by each hole for boring a 5mm at the point of crackle both ends, drill through；Then it is clamped from two holes to centre with carbon plane
Plane, until can't see crackle；Plane can form a double V-groove after holding, angle is 30-40 °, and groove lower end requires to be less than
Groove is polished flat with abrasive machine and ensures the impurity such as no coating by 10mm later；
3）Before welding, welding rod is heated to 300 ° or so, keeps the temperature 1--2 hour, drying, with baking with；
4）Welding uses reversal connection mode, i.e. anode to connect soldering turret；DC low current short arc operation；Before welding, cracks are heated to
80-100 degree starts to weld；Using 3.2mm507 welding rods or welding wire bottoming, then adopt using the built-up welding of 4.0mm507 welding rods or directly
It is welded with CO2 shield welder；Often weldering together, is polished off impurity with abrasive machine；After welding, it is heated to 250--
300 degree or so, natural cooling.
3. a kind of TBM cutterheads according to claim 1 and base bearing repair method, it is characterised in that：Anchor pole is welded with cutterhead
In termination process, using steel plate as connector, it is welded on cutterhead, then anchor pole is welded on junction steel plate again,
It is with this that cutterhead and anchor pole connection is integral, it is fixed on palisades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810204318.XA CN108356433A (en) | 2018-03-13 | 2018-03-13 | TBM cutterheads and base bearing repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810204318.XA CN108356433A (en) | 2018-03-13 | 2018-03-13 | TBM cutterheads and base bearing repair method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108356433A true CN108356433A (en) | 2018-08-03 |
Family
ID=63004071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810204318.XA Pending CN108356433A (en) | 2018-03-13 | 2018-03-13 | TBM cutterheads and base bearing repair method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108356433A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994442A (en) * | 2018-09-17 | 2018-12-14 | 北京石油化工学院 | A kind of friction stir welding method of aluminum/steel dissimilar material connection |
| CN110405317A (en) * | 2019-07-25 | 2019-11-05 | 吉林省维尔特隧道装备有限公司 | A kind of automatic welding method of development machine tool apron |
| CN114109416A (en) * | 2021-12-03 | 2022-03-01 | 中铁隧道局集团有限公司 | Method for replacing TBM main bearing in tunnel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305082A (en) * | 2011-07-23 | 2012-01-04 | 中铁十二局集团第二工程有限公司 | Method for relieving and cutterhead repairing of shield machine in weathering groove |
| CN106640101A (en) * | 2016-12-18 | 2017-05-10 | 中铁二十局集团第五工程有限公司 | Shied cutter head abrasion repairing construction method in tunnel |
-
2018
- 2018-03-13 CN CN201810204318.XA patent/CN108356433A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305082A (en) * | 2011-07-23 | 2012-01-04 | 中铁十二局集团第二工程有限公司 | Method for relieving and cutterhead repairing of shield machine in weathering groove |
| CN106640101A (en) * | 2016-12-18 | 2017-05-10 | 中铁二十局集团第五工程有限公司 | Shied cutter head abrasion repairing construction method in tunnel |
Non-Patent Citations (8)
| Title |
|---|
| 刘宏志: "TBM主轴承密封滑道环洞内免更换快速修复技术", 《科技创新导报》 * |
| 姜桥: "TB880E隧道(硬岩)掘进机主轴承密封故障诊断与处理 ", 《隧道建设》 * |
| 姜桥: "TB880E隧道(硬岩)掘进机主轴承密封故障诊断与处理", 《隧道建设》 * |
| 李光前等: "大直径TBM地下洞室刀盘拼装及焊接技术研究", 《水利水电施工》 * |
| 沈春盛: "狮子洋海底隧道盾构机刀盘修复焊接技术", 《中国建材科技》 * |
| 黄健龙: "《金工实训教程》", 30 September 2014, 化学工业出版社 * |
| 齐梦学: "TBM主轴承唇形密封洞内修复技术 ", 《工程机械》 * |
| 齐梦学: "TBM主轴承唇形密封洞内修复技术", 《工程机械》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994442A (en) * | 2018-09-17 | 2018-12-14 | 北京石油化工学院 | A kind of friction stir welding method of aluminum/steel dissimilar material connection |
| CN110405317A (en) * | 2019-07-25 | 2019-11-05 | 吉林省维尔特隧道装备有限公司 | A kind of automatic welding method of development machine tool apron |
| CN114109416A (en) * | 2021-12-03 | 2022-03-01 | 中铁隧道局集团有限公司 | Method for replacing TBM main bearing in tunnel |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180803 |