CN108019520A - A kind of balancing earth-pressure shielding machine concave is hinged sealing structure - Google Patents
A kind of balancing earth-pressure shielding machine concave is hinged sealing structure Download PDFInfo
- Publication number
- CN108019520A CN108019520A CN201711414998.XA CN201711414998A CN108019520A CN 108019520 A CN108019520 A CN 108019520A CN 201711414998 A CN201711414998 A CN 201711414998A CN 108019520 A CN108019520 A CN 108019520A
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- China
- Prior art keywords
- concave
- sealing
- grease injection
- grease
- urgent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 100
- 239000004519 grease Substances 0.000 claims abstract description 37
- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 238000012856 packing Methods 0.000 claims abstract description 11
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 6
- 239000008187 granular material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 210000004712 air sac Anatomy 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A kind of balancing earth-pressure shielding machine concave is hinged sealing structure, including being arranged on articulated structure between middle shield and tail shield, concave is equipped with articulated structure and middle shield cooperation successively to seal, ring packing and urgent waterstop sealing, it is arranged at intervals between the urgent waterstop sealing and other sealings, and urgent waterstop sealing seals for inflatable airbag, the ring packing is equipped with the first grease injection port passage, first grease injection channel is connected at articulated structure and middle shield cooperation, the concave sealing middle part is equipped with the second grease injection channel, the recess of second grease injection channel connection concave sealing, the aperture of the second grease injection channel is about the 1/10 of concave sealed width, the wearability of the concave sealing is less than ring packing.The present apparatus by between the lips that concave seals concave section open up the second grease injection hole, using Pneumatic grease pump to grease is injected at concave sealing, injection grease can be extruded answers granule foreign at sealing, avoids local excessive abrasion.
Description
Technical field
The present invention provides a kind of balancing earth-pressure shielding machine concave and is hinged sealing structure, belongs to shield-tunneling construction field.
Background technology
It is structure type shown in Fig. 1 mostly that balancing earth-pressure shielding machine, which hingedly seals, currently on the market, this structure type is deposited
In following shortcoming：Pressure bladder in no gaseity, does not seal usually.Pressure bladder cannot bear very big rub
Power is wiped, occurs that rupture and leakage easily occurs when friction and extruding.Generation rupture will be unable to repair, and cause greatly to be stranded to replace
It is difficult.The durability deficiency of sealing.To solve the above-mentioned problems, CN204140079U disclosed in Patent Office of the People's Republic of China discloses a kind of hinge
Sealing device is connect, such as the structure type of Fig. 2, it is sealed by concave, twice block, adjustment bolt, compact heap, together urgent sealing
Sealing composition.It solves the above problem by the sealing of adjustable concave.The structure type solves most of earth pressure balances
Shield machine is constructed under geological conditions complicated and changeable, carries out the replacement, curve traveling and many places radius of turn of hinged sealing not
Deng when the failure that hingedly seals, cause the mud outside shield body, water to immerse tunnel internal, damage the electrical equipment in equipment, increase
The shortcomings of construction cost.
Concave sealing is a kind of elastomer of high saturation, has good resistance, anti-corrosive properties.Due to height saturation itself
Structure, excellent incompressible, high intensity, high tear can characteristic, be one of comprehensive fantabulous rubber.Urgent sealing
Sealing is air sac type structure, is usually in not gaseity, and have certain interval with middle shield.Only an emergency situation is encountered for shield machine
When, it can just inflate being closed shield hinge point.Prevent to leak.Without using urgent sealing under normal driving state
Sealing, inflates only in shield machine shutdown status and uses urgent waterstop sealing.Balancing earth-pressure shielding machine concave articulated structure fills
Put, from structure it can be seen that in shield correction, curve tunneling process, there are relative motion, shield attitude with concave sealing for tail shield
Constantly adjustment, concave be sealed with enough deflections can adjust automatically elasticity therewith, effectively ensure sealing effect.Work as shield
When larger fluctuation occurs in structure machine posture, tunnel entirety axis is seamlessly transitted not along tunnel camber line, in this case, is be easy to cause
Tail shield gets stuck with section of jurisdiction, and hinged oil cylinder cannot timely and effectively be shunk at this time, seal pressure can be caused to reduce, the hinge of common form
Sealing is connect easily by underground water and mud to be punctured.Concave seals（As shown in Figure 2）Concave can be adjusted by adjusting adjustment bolt
The elasticity of sealing ensures the validity of seal pressure without breakdown.When concave sealing wear（Damage）When to a certain degree,
Emergency pneumatic waterstop sealing is enabled, concave sealing is replaced and solves to carry out replacing hinged this problem of sealing in construction.It is but above-mentioned recessed
Type sealing still has the problem of certain, and the convex portions sealed after practical for a long time in concave can form substantial amounts of bulky grain
Impurity, causes the abrasion between sealing ring and middle shield, it is necessary to often replace concave sealing.In addition it is understood that the ring of above-mentioned patent
The internal diameter smaller of the general internal diameter opposing female sealing of shape sealing ring, allows frictional force bigger at annular sealing ring, if both
Wearability material it is identical, annular sealing ring is easier to wear bad, it is also desirable to often replace annular sealing ring, it is of high cost, take
When it is laborious.
The content of the invention
The present invention solves a kind of balancing earth-pressure shielding machine concave of above-mentioned technical problem offer and is hinged sealing structure, by recessed
Concave section opens up grease injection hole between the lips of type sealing, using Pneumatic grease pump to injection grease at concave sealing, injects
Grease can be extruded and answer granule foreign at sealing, avoid local excessive abrasion, reduce sealing and the frictional force of tail shield；In addition lead to
Cross the setting of increase ring type seal wearability material, it is ensured that two kinds of sealing rings have identical abrasion, reach while replace
Effect, it is time saving and energy saving.
The present invention solves the technical solution that technical problem uses：
A kind of balancing earth-pressure shielding machine concave is hinged sealing structure, including is arranged on articulated structure between middle shield and tail shield, hinged
Be equipped with concave sealing, ring packing and urgent waterstop sealing at structure and middle shield cooperation successively, the urgent waterstop sealing with
It is arranged at intervals between other sealings, and urgent waterstop sealing seals for inflatable airbag, the ring packing is equipped with first
Grease injection port passage, the first grease injection channel are connected at articulated structure and middle shield cooperation, it is characterised in that：The concave
Sealing middle part is equipped with the second grease injection channel, the recess of the second grease injection channel connection concave sealing, the described second oil
The aperture of fat injection channel is about the 1/10 of concave sealed width, and the wearability of the concave sealing is less than ring packing.
Above-mentioned urgent waterstop sealing sets one or is arranged at intervals multiple.
Above-mentioned articulated structure end is connected with block by trip bolt；The concave sealing side end, which is equipped with, to be compressed
Block, compact heap outside are equipped with adjustment bolt, the compression degree for adjusting compact heap by adjusting adjustment bolt and being sealed to concave, so that
Control the sealing performance of concave sealing.
Reserved bentonite inlet is additionally provided with above-mentioned articulated structure.
The aperture of the second above-mentioned grease injection channel is 6.5mm.
Beneficial effects of the present invention：
1st, the present apparatus by between the lips that concave seals concave section open up the second grease injection hole, using Pneumatic grease pump to
Grease is injected at concave sealing, injection grease can be extruded answers granule foreign at sealing, avoids local excessive abrasion, reduces close
Envelope and the frictional force of tail shield；Set additionally by increase ring type seal wearability material, it is ensured that two kinds of sealing rings have
Identical abrasion, the effect for reaching while replacing are time saving and energy saving.
2nd, concave section opens up the aperture of the second grease injection hole and is arranged to concave sealed width between the lips of concave sealing
1/10, preferably 6.5mm, can have the best effect solved the problems, such as, if aperture is excessive, seal grease can waste
Greatly, and the intensity of concave sealing can be reduced, if the too small impurity that can not discharge inside in aperture, it is less than skill to be solved
Art problem.
3rd, multiple urgent waterstop sealings may insure the effect of emergency sealing, and when one damages, its complementary energy is promptly stopped
Water, or work at the same time the speed for increasing urgent sealing.
4th, the demands of other sealing lubrications can be facilitated equipped with reserved bentonite inlet.
Brief description of the drawings
Illustrated below in conjunction with attached drawing with embodiment
Fig. 1 is the structure diagram of the prior art one；
Fig. 2 is the structure diagram of the prior art two；
Fig. 3 is the structure diagram of the present invention.
Embodiment
Referring to the drawings 3, a kind of balancing earth-pressure shielding machine concave is hinged sealing structure, including be arranged on middle shield 1 and tail shield 2 it
Between articulated structure 3, concave sealing 5, ring packing 6 and urgent waterstop sealing 7, institute are equipped with articulated structure and middle shield cooperation successively
It is arranged at intervals between the urgent waterstop sealing stated and other sealings, and urgent waterstop sealing seals for inflatable airbag, it is described
Ring packing is equipped with the first grease injection port passage 8, and the first grease injection channel is connected at articulated structure and middle shield cooperation, institute
The concave sealing middle part stated is equipped with the second grease injection channel 9, and the recess of the second grease injection channel connection concave sealing is described
The aperture of the second grease injection channel be about the 1/10 of concave sealed width, it is close that the wearability of concave sealing is less than annular
Envelope.
Preferably, the urgent waterstop sealing sets one or is arranged at intervals multiple.
Preferably, the articulated structure end is connected with block 10 by trip bolt 11；The concave sealed sides
End is equipped with compact heap 12, and adjustment bolt 13 is equipped with the outside of compact heap, close to concave by adjusting adjustment bolt adjustment compact heap
The compression degree of envelope, so as to control the sealing performance that concave seals.
Preferably, reserved bentonite inlet 14 is additionally provided with the articulated structure.
Preferably, the aperture of the second grease injection channel is 6.5mm.
The gap of shield and tail shield during the grease seal of shield tail can be filled effectively, forms in concave sealed external and protects together
Barrier is protected, plays the role of water proof every sand.When concave sealing wear（Damage）When to a certain degree, it is close to enable emergency pneumatic sealing
Envelope, replaces concave sealing and solves to carry out replacing hinged this problem of sealing in construction.This patent balancing earth-pressure shielding machine concave is cut with scissors
Connect structure type, technology maturation, it is simple in structure it is advanced, auxiliary facility is complete, safety coefficient higher, safer.
Hinged sealing structure carries the pose adjustment task in whole shield tunneling process, turns in shield driving
Curved, curve is advanced and correction, and tail shield hingedly seals that there are certain relative motion with tail shield.Analyze the change of hinged sealing
Shape characteristic, by using the effective service life hingedly sealed that improves as target, prevents to be hinged by what the failure hingedly sealed triggered
Leakage accident, powerful guarantee is provided for efficient, the safety driving of TBM.
Protection scope of the present invention is not limited to the above embodiments, it is clear that those skilled in the art can be to this hair
It is bright to carry out various changes and deformation without departing from scope and spirit of the present invention.If these changes and deformation belong to power of the present invention
In the range of profit requirement and its equivalent technologies, then including the intent of the present invention is also changed and deformed comprising these.
Claims (5)
1. a kind of balancing earth-pressure shielding machine concave is hinged sealing structure, including is arranged on middle shield（1）With tail shield（2）Between hingedly tie
Structure（3）, concave is equipped with articulated structure and middle shield cooperation successively and is sealed（5）, ring packing（6）With urgent waterstop sealing（7）, institute
It is arranged at intervals between the urgent waterstop sealing stated and other sealings, and urgent waterstop sealing seals for inflatable airbag, it is described
Ring packing is equipped with the first grease injection port passage（8）, at the first grease injection channel connection articulated structure and middle shield cooperation,
It is characterized in that：The concave sealing middle part is equipped with the second grease injection channel（9）, the second grease injection channel connection concave
The recess of sealing, the aperture of the second grease injection channel are about the 1/10 of concave sealed width, the concave sealing
Wearability is less than ring packing.
2. balancing earth-pressure shielding machine concave according to claim 1 is hinged sealing structure, it is characterized in that：Described promptly stops
Water-stop sets one or is arranged at intervals multiple.
3. balancing earth-pressure shielding machine concave according to claim 1 or 2 is hinged sealing structure, it is characterized in that：The hinge
Connect structure end and pass through trip bolt（11）It is connected with block（10）；The concave sealing side end is equipped with compact heap（12）,
Adjustment bolt is equipped with the outside of compact heap（13）, the compression degree that is sealed to concave of compact heap is adjusted by adjusting adjustment bolt, from
And the sealing performance for controlling concave to seal.
4. balancing earth-pressure shielding machine concave according to claim 1 or 2 is hinged sealing structure, it is characterized in that：The hinge
Reserved bentonite inlet is additionally provided with binding structure（14）.
5. balancing earth-pressure shielding machine concave according to claim 1 or 2 is hinged sealing structure, it is characterized in that：Described
The aperture of two grease injection channels is 6.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711414998.XA CN108019520A (en) | 2017-12-25 | 2017-12-25 | A kind of balancing earth-pressure shielding machine concave is hinged sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711414998.XA CN108019520A (en) | 2017-12-25 | 2017-12-25 | A kind of balancing earth-pressure shielding machine concave is hinged sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108019520A true CN108019520A (en) | 2018-05-11 |
Family
ID=62072889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711414998.XA Pending CN108019520A (en) | 2017-12-25 | 2017-12-25 | A kind of balancing earth-pressure shielding machine concave is hinged sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108019520A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825248A (en) * | 2018-07-17 | 2018-11-16 | 中铁工程装备集团有限公司 | A kind of interim prosthetic device of hingedly sealing for Suporting structure |
| CN109826639A (en) * | 2019-03-19 | 2019-05-31 | 上海隧道工程有限公司 | The double hinged deviation control systems of push-bench |
| CN110295914A (en) * | 2019-07-12 | 2019-10-01 | 中国铁建重工集团股份有限公司 | A kind of hinge seal device and the shield machine with the hinge seal device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204140079U (en) * | 2014-07-24 | 2015-02-04 | 中国铁建重工集团有限公司 | A kind of hinge seal device and the shield machine comprising hinge seal device |
| CN204783028U (en) * | 2015-07-06 | 2015-11-18 | 中铁工程装备集团有限公司 | It constructs novel articulated sealing device initiatively to articulate formula shield |
| CN205315003U (en) * | 2015-12-31 | 2016-06-15 | 中铁十八局集团第三工程有限公司 | Shield constructs articulated sealed protection device of machine |
| CN205896176U (en) * | 2016-08-01 | 2017-01-18 | 上海力行工程技术发展有限公司 | Articulated seal assembly |
| CN206175661U (en) * | 2016-09-28 | 2017-05-17 | 广州宝力特密封技术有限公司 | Fishbone -shaped articulates sealing washer |
| CN206246125U (en) * | 2016-12-01 | 2017-06-13 | 中铁七局集团第三工程有限公司 | A kind of modified earth pressure balanced shield, EPBS hinge seal device |
| CN208204010U (en) * | 2017-12-25 | 2018-12-07 | 辽宁三三工业有限公司 | A kind of hinged sealing structure of balancing earth-pressure shielding machine concave |
-
2017
- 2017-12-25 CN CN201711414998.XA patent/CN108019520A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204140079U (en) * | 2014-07-24 | 2015-02-04 | 中国铁建重工集团有限公司 | A kind of hinge seal device and the shield machine comprising hinge seal device |
| CN204783028U (en) * | 2015-07-06 | 2015-11-18 | 中铁工程装备集团有限公司 | It constructs novel articulated sealing device initiatively to articulate formula shield |
| CN205315003U (en) * | 2015-12-31 | 2016-06-15 | 中铁十八局集团第三工程有限公司 | Shield constructs articulated sealed protection device of machine |
| CN205896176U (en) * | 2016-08-01 | 2017-01-18 | 上海力行工程技术发展有限公司 | Articulated seal assembly |
| CN206175661U (en) * | 2016-09-28 | 2017-05-17 | 广州宝力特密封技术有限公司 | Fishbone -shaped articulates sealing washer |
| CN206246125U (en) * | 2016-12-01 | 2017-06-13 | 中铁七局集团第三工程有限公司 | A kind of modified earth pressure balanced shield, EPBS hinge seal device |
| CN208204010U (en) * | 2017-12-25 | 2018-12-07 | 辽宁三三工业有限公司 | A kind of hinged sealing structure of balancing earth-pressure shielding machine concave |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825248A (en) * | 2018-07-17 | 2018-11-16 | 中铁工程装备集团有限公司 | A kind of interim prosthetic device of hingedly sealing for Suporting structure |
| CN108825248B (en) * | 2018-07-17 | 2024-04-02 | 中铁工程装备集团有限公司 | Hinge seal temporary repairing device for shield equipment |
| CN109826639A (en) * | 2019-03-19 | 2019-05-31 | 上海隧道工程有限公司 | The double hinged deviation control systems of push-bench |
| CN109826639B (en) * | 2019-03-19 | 2021-08-06 | 上海隧道工程有限公司 | Double-hinge deviation control system of push bench |
| CN110295914A (en) * | 2019-07-12 | 2019-10-01 | 中国铁建重工集团股份有限公司 | A kind of hinge seal device and the shield machine with the hinge seal device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180511 |