CN106050248A - Soil chamber sealing device for tunnel boring machine - Google Patents
Soil chamber sealing device for tunnel boring machine Download PDFInfo
- Publication number
- CN106050248A CN106050248A CN201610569513.3A CN201610569513A CN106050248A CN 106050248 A CN106050248 A CN 106050248A CN 201610569513 A CN201610569513 A CN 201610569513A CN 106050248 A CN106050248 A CN 106050248A
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- China
- Prior art keywords
- floating ring
- cover plate
- mounting groove
- sealing device
- face
- 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.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 74
- 239000002689 soil Substances 0.000 title claims abstract description 49
- 238000007667 floating Methods 0.000 claims abstract description 87
- 230000007704 transition Effects 0.000 claims abstract description 47
- 238000005461 lubrication Methods 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 19
- 238000012856 packing Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000004519 grease Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 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
- E21D9/08—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
-
- 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
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Provided in the invention is a soil chamber sealing device for a tunnel boring machine. The device comprises a transition shaft and a mounting groove; a window hole is formed in the bottom of the mounting groove; and the transition shaft penetrates the window hole. In addition, the device also includes a floating ring and a cover plate; the floating ring sleeves the transition shaft and is arranged in the mounting groove; and the cover plate covers an opening of the mounting groove and is fixed at the opening of the mounting groove. The floating ring has a rear end surface and a front end surface; and the rear end surface of the floating ring is in sealed connection with the bottom of the mounting groove. Sealing between the floating ring and the transition shaft is kept. A slot is formed in the front end surface of the floating ring. A stop pin is fixedly arranged on the cover plate; one end of the stop pin extends into the slot; and the floating ring can move relative to the stop pin along the length direction of the slot. Because of the floating ring floating with the transition shaft, a large coaxiality error between an external circle of the transition shaft and the rotation center is allowed. Moreover, the device has advantages of ingenious structure, low processing and manufacturing costs, and high sealing reliability; and compared with the service life of the existing sealing device, the service life of the soil chamber sealing device is prolonged substantially.
Description
Technical field
The present invention relates to a kind of soil storehouse sealing device, particularly relate to a kind of shield machine soil storehouse sealing device.
Background technology
With shield machine carry out that tunnel construction has that automaticity is high, saves manpower, speed of application is fast, cavitation, no
Controllably face sedimentation when climate impact, excavation, reduce on the impact of above ground structure and under water excavation time do not affect water
The features such as face traffic, in the case of, buried depth longer at tunnel line is relatively big, with shield machine construction more economical rationality.
The basic functional principle of shield machine is exactly that a cylindrical steel assembly is pushed ahead while to soil along canal axes
Earth excavates.The housing of this cylinder component i.e. shield, it plays temporary support to the most unlined Tunnel Section excavated
Effect, bear the pressure of soil layer around, sometimes keep off outside also subject to ground water pressure and by subsoil water.Excavation, casting, lining
The operations such as block are carried out under the shielding of shield.
The cutterhead of shield machine is when cutting, it will usually is aided with the medium such as foam or bentonite and cuts environment with improvement, because of
This would generally be provided with the central rotary joint of transmission medium between the cutterhead and shield body of shield machine, central authorities' rotary joint be arranged on
In the native storehouse sealing device that cutterhead connects, soil storehouse sealing device from soil storehouse toward overhanging, the transmission of cutterhead power to be taken into account, soil
The sealing in storehouse and the conveying of medium etc. act on, but this coaxial between large-scale equipment cutterhead and shield machine shield body of shield machine
Spend owing to the relation manufactured and assemble often exists bigger error, outside existing soil storehouse sealing device transition axis and transition axis
Sealing device be exactly fixing structure, both installation accuracies require that height, the sealing structure of soil storehouse sealing device need according to two
The difference of person's axiality adjusts at any time, and cutterhead is not coaxial with shield body simultaneously also can cause disadvantageous to relative soil storehouse sealing device
Radial force, the life-span of sealing is relatively low, poor reliability.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve cutterhead and the coaxiality error of shield body mounting groove, can affect
Installing and the problem in service life of soil storehouse sealing device, the invention provides a kind of shield machine soil storehouse sealing device and solves
The problems referred to above.
The technical solution adopted for the present invention to solve the technical problems is: a kind of shield machine soil storehouse sealing device, including
Transition axis and shield body, described shield body is provided with mounting groove, and the bottom land of described mounting groove is provided with fenestra, and described transition axis is arranged in institute
Stating among fenestra, described soil storehouse sealing device also includes floating ring and cover plate；Described floating ring is annular, is set in described transition
It is placed on axle in mounting groove, the cylindrical of described floating ring and the inner hole wall matched in clearance of mounting groove；Described cover plate is annular, institute
State cover plate to cover and be fixed at the notch of mounting groove；Described floating ring has rear end face and the front end of nearly cover plate of nearly fenestra
Face, the rear end face of floating ring is tightly connected with the bottom land of mounting groove；The first seal groove is offered on the inner hole wall of described floating ring,
The native storehouse sealing ring being in sealing contact with transition axis it is provided with in first seal groove；Slit is offered on the front end face of described floating ring,
The length direction of described slit is the radial direction of floating ring, and the end face of the nearly mounting groove side of described cover plate is fixed with spline
Pin, one end of described spline pin is stretched in slit, and floating ring can move along the length direction of slit relative to spline pin.
Further: the front end face of described floating ring and described cover plate for sealing connect, described cover plate and the notch of mounting groove
It is tightly connected.
Further: the bottom land of described mounting groove is provided with the second seal groove, is provided with and floating ring in the groove of the second seal groove
The second O of being tightly connected of rear end face；The inner face of described cover plate is provided with the 3rd seal groove, in the groove of the 3rd seal groove
It is provided with the 3rd O that the front end face with floating ring is tightly connected；On the inner face of described cover plate, cover plate contacts with mounting groove
Position be provided with the 4th seal groove, be provided with, in described 4th seal groove, the 4th O that the notch with mounting groove is in sealing contact.
Further: on the inner hole wall of described floating ring, offer the first seal groove that quantity is more than two vertically,
Inner hole wall between adjacent two the first seal grooves is provided with the first oil-way, and described cover plate is provided with the first lubrication hydraulic fluid port,
First oil-way and first are lubricated the first oil leab that hydraulic fluid port connects with being provided with in floating ring by cover plate.
Further: described soil storehouse sealing ring is lip-type packing, and the pressure-bearing lip of lip-type packing is arranged in the face of fenestra.
Further: described cover plate is provided with the second profit of the cylindrical the connecting floating ring gap location with mounting groove inner hole wall
Lubricating oil mouth；Described cover plate is provided with the second lubrication hydraulic fluid port, is provided with the outer wall and second of floating ring in described cover plate and floating ring
Second oil leab of lubrication hydraulic fluid port connection.
Further: the cylindrical of described floating ring is at least monolateral 5mm with the gap of mounting groove inner hole wall.
Further: described transition axis is provided with axially through medium channel.
The invention has the beneficial effects as follows, one shield machine of the present invention soil storehouse sealing device can be along with transition by arranging
The floating ring that axle floats, it is allowed to having bigger coaxiality error between cylindrical and the center of rotation of transition axis, this apparatus structure is skilful
Wonderful, processing and manufacturing cost is relatively low, and sealing reliability is high, and the life-span more existing sealing device of soil storehouse sealing device is compared
It is greatly improved.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of a kind of shield machine of present invention soil storehouse sealing device optimum embodiment；
Fig. 2 is enlarged drawing at the A of Fig. 1；
Fig. 3 is the structural representation of difference and a kind of shield machine soil storehouse sealing device of Fig. 1 section view；
Fig. 4 is enlarged drawing at the B of Fig. 3；
Fig. 5 is the structural representation of mounting groove；
Fig. 6 is structural representation when floating ring and transition axis installation；
Fig. 7 is the right view of floating ring as shown in Figure 6；
Fig. 8 is the structural representation of lip-type packing.
In figure 1, mounting groove, 2, transition axis, 3, floating ring, 4, cover plate, the 5, first seal groove, 6, lip-type packing, 7, narrow
Groove, 8, spline pin, the 9, first oil-way, the 10, first lubrication hydraulic fluid port, the 11, second lubrication hydraulic fluid port, the 12, second seal groove, 13,
3rd seal groove, the 14, the 4th seal groove, 15, medium channel, the 16, first oil leab, the 17, second oil leab, 100, shield
Body, 101, cutterhead, 102, central authorities' rotary joint.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.On the contrary, originally
Inventive embodiment includes all changes in the range of the spirit falling into attached claims and intension, revises and be equal to
Thing.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " axially ",
" radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or position relationship, merely to just
In describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation, with
Specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or imply relatively important
Property.In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is connected ", " connection " should
It is interpreted broadly, connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary.Common for this area
For technical staff, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.Additionally, in description of the invention
In, except as otherwise noted, " multiple " are meant that two or more.
In flow chart or at this, any process described otherwise above or method description are construed as, and expression includes
One or more is for realizing the module of code, fragment or the portion of the executable instruction of the step of specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not by shown or discuss suitable
Sequence, including according to involved function by basic mode simultaneously or in the opposite order, performs function, and this should be by the present invention
Embodiment person of ordinary skill in the field understood.
As shown in Figures 1 to 8, the invention provides a kind of shield machine soil storehouse sealing device, including transition axis 2 and shield body
100, described shield body 100 is provided with mounting groove 1, and the bottom land of described mounting groove 1 is provided with fenestra 103, and described transition axis 2 is arranged in institute
Stating among fenestra 103, described soil storehouse sealing device also includes floating ring 3 and cover plate 4；Described floating ring 3 is annular, is set in institute
State and be placed on transition axis 2 in mounting groove 1, the cylindrical of described floating ring 3 and the inner hole wall matched in clearance of mounting groove 1；Described lid
Plate 4 is annular, and described cover plate 4 covers and is fixed at the notch of mounting groove 1；Described floating ring 3 has the rear end of nearly fenestra 103
Face and the front end face of nearly cover plate 4, the rear end face of floating ring 3 is tightly connected with the bottom land of mounting groove 1；The endoporus of described floating ring 3
Offer the first seal groove 5 on wall, in the first seal groove 5, be provided with the native storehouse sealing ring being in sealing contact with transition axis 2；Such as Fig. 6 and
Shown in Fig. 7, the front end face of described floating ring 3 offers slit 7, the radial direction side that length direction is floating ring 3 of described slit 7
To, the end face of nearly mounting groove 1 side of described cover plate 4 is fixed with spline pin 8, slit 7 is stretched in one end of described spline pin 8
In, floating ring 3 can move along the length direction of slit 7 relative to spline pin 8.
After the cutterhead 101 and shield body 100 installation of shield machine, need to carry out the installation of sediment improvement equipment, simultaneously
Need soil storehouse sealing device is installed, by transition axis 2, cutterhead 101 and central authorities' rotary joint 102 are linked together.Improvement dregs
Medium is just transported in cutterhead 101 by transition axis 2 by central authorities' rotary joint 102；And the center of rotation of cutterhead 101 and shield body
Certain coaxiality error can be there is in the mounting groove 1 of 100 due to processing and manufacturing and assembling.The such structure of the present invention, by floating
Rotating ring 3 carries out Tu Cang sealing, and when mounted, transition axis 2 and cutterhead 101 are fixed, and the center of rotation of transition axis 2 is just and cutterhead
The center of rotation of 101 is consistent, floats when the cylindrical of transition axis 2 and the center of rotation of transition axis 2 exist certain coaxiality error
Ring 3 can float along the length direction of slit 7 in mounting groove 1 so that outside floating ring 3 can be all the time with transition axis 2
Circle keeps with one heart, it is to avoid the transition axis 2 caused due to bias to shield body 100 or the situation of sealing device contact wear, and
When floating, floating ring 3 and mounting groove 1 and transition axis 2 are always maintained at the state sealed, outside preventing the dregs of Tu Cang from leaking into
Portion, uses such structure to also reduce the difficulty of processing, cutterhead 101 and the axiality of mounting groove 1 and the rotation of transition axis 2
The cylindrical center of center and transition axis 2 can allow bigger error.
Front end face and the described cover plate 4 of described floating ring 3 are tightly connected, and the notch of described cover plate 4 and mounting groove 1 seals even
Connect.
The notch of cover plate 4 and mounting groove 1 is tightly connected, and is on the one hand possible to prevent the dust impurity in the external world to enter mounting groove 1
Among, on the other hand the sealing between the bottom land of the rear end face of floating ring 3 and mounting groove 1 can also be played the work of auxiliary seal
With, prevent dregs from being leaked out by the junction of cover plate 4 and mounting groove 1.
The bottom land of described mounting groove 1 is provided with the second seal groove 12, be provided with in the groove of the second seal groove 12 with floating ring 3 after
The second O that end face seal connects；The inner face of described cover plate 4 is provided with the 3rd seal groove 13, the groove of the 3rd seal groove 13
Inside it is provided with the 3rd O that the front end face with floating ring 3 is tightly connected；On the inner face of described cover plate 4, cover plate 4 and installation
The position of groove 1 contact is provided with the 4th seal groove 14, is provided with the notch with mounting groove 1 and is in sealing contact in described 4th seal groove 14
The 4th O.
The sealing of mounting groove 1 and floating ring 3 can regard that static seal, the sealing of cover plate 4 and floating ring 3 can also be regarded as
Being static seal, be sealed into static seal in cover plate 4 and mounting groove 1, this several places static seal can select O, and O is made quiet close
Seal reliable during envelope and cost be relatively low, and the processing of seal groove is the simplest, it is easy to accomplish.
It should also be noted that the first seal groove the 5, second seal groove the 12, the 3rd seal groove 13 and the 4th seal groove 14
Should not be limited to above-mentioned installation position, it is also possible to be arranged on another parts sealed against each other, as long as two portions can be met
The effect that part seals against each other.
The first seal groove 5 that quantity is more than two is offered vertically on the inner hole wall of described floating ring 3, adjacent two
Inner hole wall between first seal groove 5 is provided with the first oil-way 9, and described cover plate 4 is provided with the first lubrication hydraulic fluid port 10, cover plate
First oil-way 9 is lubricated, with first, the first oil leab 16 that hydraulic fluid port 10 connects with being provided with in floating ring 3 by 4.
Being sealed into movable sealing between floating ring 3 and transition axis 2, therefore, it is close that the dregs in soil storehouse is easier to destroy soil storehouse
Seal, from leaking out the external world between floating ring 3 and transition axis 2, uses multiple tracks soil storehouse sealing ring and close in adjacent native storehouse
First oil-way 9 is set between seal, in the first lubrication hydraulic fluid port 10, injects lubricant grease by the first lubrication hydraulic fluid port 10, can
Provide lubrication to soil storehouse sealing ring, meanwhile, lubricant grease has certain pressure, can set up auxiliary between the sealing ring of soil storehouse
The pressure grease seal area helped, extrudes the dregs impurity etc. being mixed in the sealing ring sealing surface of soil storehouse, substantially reduces soil storehouse close
The abrasion of seal, extends the service life of soil storehouse sealing ring, improves the reliable of floating ring 3 and transition axis 2 movable sealing simultaneously
Property.
As shown in Figure 8, described soil storehouse sealing ring is lip-type packing 6, and the pressure-bearing lip of lip-type packing 6 is in the face of fenestra
103 are arranged.
Soil storehouse sealing ring uses lip-type packing 6, and the sealing position that lip-type packing 6 contacts with the cylindrical of transition axis 2 is relatively
Few, the impurity such as dregs can be stoped to be mixed among sealing position, meanwhile, the lubrication with pressure being provided with between the sealing ring of soil storehouse
Oils and fats easily can apply pressure to lip so that the lip of lip-type packing 6 is at Tu Cang side and the pressure of lubricant grease side
Balance, decreases dregs in soil storehouse through sealing the trend at position, and have the lubricant grease of pressure also can easily by
It is mixed into the dregs impurity sealed in the position extrusion of lip, decreases the abrasion of soil storehouse sealing ring, extend service life.
Described cover plate 4 is provided with the second lubrication hydraulic fluid port of the cylindrical connecting floating ring 3 gap location with mounting groove 1 inner hole wall
11；Described cover plate 4 is provided with the second lubrication hydraulic fluid port 11, is provided with the outer wall and of floating ring 3 in described cover plate 4 and floating ring 3
Second oil leab 17 of two lubrication hydraulic fluid port 11 connections.
Inject lubricating oil to the gap location of the cylindrical of floating ring 3 and the inner hole wall of mounting groove 1 by the second lubrication hydraulic fluid port 11
Fat, on the one hand can give and provide lubrication between floating ring 3 and the sealing position of mounting groove 1, it is also possible to floating ring 3 and cover plate 4
Sealing position between lubrication is provided so that the floating ring 3 floating frictional force in mounting groove 1 reduces, and floats more freely, subtracts
The little abrasion of potted component, on the other hand, the lubricant grease of injection can be opposite to the certain support of floating ring 3 therein and make
With so that floating ring 3 preferably can keep concentric with the cylindrical of transition axis 2.
The cylindrical of described floating ring 3 is at least monolateral 5mm with the gap of mounting groove 1 inner hole wall.
Center of rotation, the mounting groove 1 of shield body 100 and the mismachining tolerance of transition axis 2 cylindrical according to cutterhead 101, also has
Many cumulative errors such as each parts assembling, the gap of floating ring 3 and mounting groove 1 ensures the most monolateral 5mm, it is ensured that
Floating ring 3 can in mounting groove 1 free floating, simultaneously meet seal needs.
Described transition axis 2 is provided with axially through medium channel 15.
Transition axis 2 connects cutterhead 101 and central authorities' rotary joint 102, and the medium channel 15 being provided with in transition axis 2 connects central authorities and returns
The medium channel of trochanter 102 and the sediment improvement mouth of cutterhead 101, the medium channel in transition axis 2 is by central authorities' rotary joint 102
Medium be transported in cutterhead 101, then be assigned in each relevant position by cutterhead 101, it is achieved sediment improvement.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of described term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.
Claims (8)
1. a shield machine soil storehouse sealing device, including transition axis (2) and shield body (100), described shield body (100) is provided with peace
Tankage (1), the bottom land of described mounting groove (1) is provided with fenestra (103), described transition axis (2) be arranged in described fenestra (103) it
In, it is characterised in that: described soil storehouse sealing device also includes floating ring (3) and cover plate (4)；
Described floating ring (3) is annular, is set on described transition axis (2) and is placed in mounting groove (1), described floating ring (3)
Cylindrical and the inner hole wall matched in clearance of mounting groove (1)；
Described cover plate (4) is annular, and described cover plate (4) covers and is fixed at the notch of mounting groove (1)；
Described floating ring (3) has rear end face and the front end face of nearly cover plate (4) of nearly fenestra (103), the rear end face of floating ring (3)
It is tightly connected with the bottom land of mounting groove (1)；Offering the first seal groove (5) on the inner hole wall of described floating ring (3), first seals
The native storehouse sealing ring being in sealing contact with transition axis (2) it is provided with in groove (5)；Slit is offered on the front end face of described floating ring (3)
(7), the radial direction that length direction is floating ring (3) of described slit (7), the end of nearly mounting groove (1) side of described cover plate (4)
Being fixed with spline pin (8) on face, one end of described spline pin (8) is stretched in slit (7), and floating ring (3) can be along slit (7)
Length direction moves relative to spline pin (8).
2. a kind of shield machine as claimed in claim 1 soil storehouse sealing device, it is characterised in that: before described floating ring (3)
End face and described cover plate (4) are tightly connected, and the notch of described cover plate (4) and mounting groove (1) is tightly connected.
3. a kind of shield machine as claimed in claim 2 soil storehouse sealing device, it is characterised in that: the groove of described mounting groove (1)
The end, is provided with the second seal groove (12), is provided with the be tightly connected with the rear end face of floating ring (3) in the groove of the second seal groove (12)
Two O；The inner face of described cover plate (4) is provided with the 3rd seal groove (13), is provided with floating in the groove of the 3rd seal groove (13)
The 3rd O that the front end face of rotating ring (3) is tightly connected；On the inner face of described cover plate (4), cover plate (4) and mounting groove (1)
The position of contact is provided with the 4th seal groove (14), is provided with the notch with mounting groove (1) and seals in described 4th seal groove (14)
4th O of contact.
4. shield machine as claimed in claim 1 a kind of soil storehouse sealing device, it is characterised in that: described floating ring (3) interior
The first seal groove (5) that quantity is more than two is offered vertically, interior between adjacent two the first seal grooves (5) on hole wall
Hole wall is provided with the first oil-way (9), and described cover plate (4) is provided with the first lubrication hydraulic fluid port (10), cover plate (4) and floating ring
(3) the first oil leab (16) connected with the first lubrication hydraulic fluid port (10) by the first oil-way (9) it is provided with in.
5. a kind of shield machine as claimed in claim 4 soil storehouse sealing device, it is characterised in that: described soil storehouse sealing ring is lip
Shape sealing ring (6), the pressure-bearing lip of lip-type packing (6) is arranged in the face of fenestra (103).
6. a kind of shield machine as claimed in claim 2 soil storehouse sealing device, it is characterised in that: described cover plate (4) is provided with
Connect the second lubrication hydraulic fluid port (11) of the cylindrical of floating ring (3) and the gap location of mounting groove (1) inner hole wall；On described cover plate (4)
It is provided with in being provided with the second lubrication hydraulic fluid port (11), described cover plate (4) and floating ring (3) and the outer wall and second of floating ring (3) is lubricated
The second oil leab (17) that hydraulic fluid port (11) connects.
7. a kind of shield machine as claimed in claim 1 soil storehouse sealing device, it is characterised in that: outside described floating ring (3)
Circle is at least monolateral 5mm with the gap of mounting groove (1) inner hole wall.
8. a kind of shield machine as claimed in claim 1 soil storehouse sealing device, it is characterised in that: described transition axis sets in (2)
Have axially through medium channel (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569513.3A CN106050248A (en) | 2016-07-20 | 2016-07-20 | Soil chamber sealing device for tunnel boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569513.3A CN106050248A (en) | 2016-07-20 | 2016-07-20 | Soil chamber sealing device for tunnel boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050248A true CN106050248A (en) | 2016-10-26 |
Family
ID=57188106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610569513.3A Pending CN106050248A (en) | 2016-07-20 | 2016-07-20 | Soil chamber sealing device for tunnel boring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050248A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948830A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of native storehouse sealing device of novel shield machine |
| CN106948824A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of floating type shield machine sediment improvement medium conveying apparatus |
| CN108374668A (en) * | 2018-02-14 | 2018-08-07 | 上海隧道工程有限公司 | Telescopic locking device for shield excavation machine Tu Cang and shell |
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| CN105971924A (en) * | 2016-05-31 | 2016-09-28 | 北京航天动力研究所 | Circumferential sectioned helium sealing device for oxygen turbine pump of hydrogen oxygen engine |
| CN205895250U (en) * | 2016-07-20 | 2017-01-18 | 江苏腾旋科技股份有限公司 | Shield constructs machine soil storehouse sealing device |
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| US4175755A (en) * | 1978-12-11 | 1979-11-27 | Carrier Corporation | Mechanical seal assembly |
| US4348029A (en) * | 1980-01-17 | 1982-09-07 | Mitsubishi Denki Kabushiki Kaisha | Seal-ring type shaft-sealing device |
| CN201575250U (en) * | 2009-12-11 | 2010-09-08 | 苏州有色金属研究院有限公司 | Novel swivel joint provided with soft floating ring sealing structure |
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| CN203742606U (en) * | 2013-11-12 | 2014-07-30 | 南京城盾重工机械制造有限公司 | Combined sealing system for shield machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948830A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of native storehouse sealing device of novel shield machine |
| CN106948824A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of floating type shield machine sediment improvement medium conveying apparatus |
| CN108374668A (en) * | 2018-02-14 | 2018-08-07 | 上海隧道工程有限公司 | Telescopic locking device for shield excavation machine Tu Cang and shell |
| CN108374668B (en) * | 2018-02-14 | 2019-10-22 | 上海隧道工程有限公司 | Telescopic locking device for shield excavation machine Tu Cang and shell |
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Application publication date: 20161026 |