CN107313780B - Novel sealing form shield machine center steering body - Google Patents
Novel sealing form shield machine center steering body Download PDFInfo
- Publication number
- CN107313780B CN107313780B CN201710658651.3A CN201710658651A CN107313780B CN 107313780 B CN107313780 B CN 107313780B CN 201710658651 A CN201710658651 A CN 201710658651A CN 107313780 B CN107313780 B CN 107313780B
- Authority
- CN
- China
- Prior art keywords
- revolving body
- seal ring
- shield machine
- machine center
- center steering
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 27
- 238000007667 floating Methods 0.000 claims abstract description 31
- 230000007704 transition Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 239000002689 soil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
-
- 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)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of novel sealing form shield machine center steering bodies, including shell, revolving body afterwards, transition plates, preceding revolving body and rotation stop frame, revolving body is arranged in shell after described, revolving body is connected with preceding revolving body by transition plates after described, floating seal ring and labyrinth seal ring are provided on the preceding revolving body surface, the labyrinth seal ring setting is in floating seal ring by nearby revolving body extension end side, the floating seal ring has three VD lip seal configurations, the rotation stop frame is arranged in preceding revolving body and housing bottom, the rotation stop frame is provided with compensation bracket on side, the novel sealing form shield machine center steering body sealing effect is good and abnormal damage caused by capable of reducing local compression to floating seal ring.
Description
Technical field
The present invention relates to shield machine technical fields, more particularly to a kind of novel sealing form shield machine center steering body.
Background technique
Shielding tunnel excavator, abbreviation shield machine.It is a kind of special engineering machinery of tunnel piercing, modern shield excavation machine
Integrate light, mechanical, electrical, liquid, sensing, information technology, has and excavate the cutting soil body, conveying soil quarrel, assembled tunnel-liner, measurement
The functions such as guiding correction are related to the multiple subjects technology such as geology, building, machinery, mechanics, hydraulic, electrical, control, measurement, and
The design and manufacture of " cutting the garment according to the figure " formula are carried out according to different geology, reliability requirement is high.Shield excavation machine is used extensively
In Tunnel Engineering such as subway, railway, highway, municipal administration, water power.
Center tip form on the market is suitble to outside fluid media (medium) in addition to consideration fluid channel quantity at present, mainly close
Envelope form is undesirable, does not fully consider that mud, dregs can be squeezed at sealing under the effect of soil cabin pressure in tunneling process, cause
Rapid Damage is sealed, rotary dynamic seal is not accounted for and is declined for a long time using sealing effect, there are also rotating shafts and cutterhead, main driving
Decentraction, which is generated, accelerates sealing wear situation to sealing local compression, but actual use has generation in problem above.
It is accordingly required in particular to a kind of sealing effect it is good and caused by local compression to floating seal ring can be reduced it is abnormal
The novel sealing form shield machine center steering body of damage, to solve problems of the prior art.
Summary of the invention
The purpose of the present invention is to solve defect in the prior art, it is good and can reduce to floating to provide a kind of sealing effect
The novel sealing form shield machine center steering body of abnormal damage caused by the local compression of rotary packing ring, to solve the prior art
The problem of.
To achieve the above object, technical scheme is as follows:
A kind of novel sealing form shield machine center steering body, including shell, rear revolving body, transition plates, preceding revolving body and only
Pivoted frame, the rear revolving body are arranged in shell, and the rear revolving body is connected with preceding revolving body by transition plates, turn round before described
Floating seal ring and labyrinth seal ring are provided on body surface face, the labyrinth seal ring setting is turned round in floating seal ring by nearby
Body extension end side, the floating seal ring have a three VD lip seal configurations, rotation stop frame setting in preceding revolving body and
Housing bottom, the rotation stop frame are provided with compensation bracket on side.
In order to further realize the present invention, the transition plates one side is fixedly connected with rear revolving body, and the transition plates is another
One side is fixedly connected with preceding revolving body.
In order to further realize the present invention, floating ring end cap is provided on the floating seal ring surface.
In order to further realize the present invention, the compensation bracket includes fixed plate, elastic device and support plate, the fixation
Plate is fixed on the side of rotation stop frame by screw, and described elastic device one end is fixed in fixed plate, the other end
On the supporting plate, the support plate and housing bottom contradict and are arranged for fixed setting.
In order to further realize the present invention, the elastic device includes spring and bolt, and spring is set on bolt, bolt
Upper end is threadedly secured in support plate, and bolt lower end is fixed in fixed plate by nut, spring setting in support plate and
Between fixed plate.
Beneficial effect
(1) present invention can effectively stop mud, dregs, sandstone axially to squeeze into floating close by being provided with labyrinth seal ring
Seal ring, and labyrinth clearance is adjusted according to the case where driving soil layer, labyrinth seal ring is to be detachably connected with preceding revolving body, labyrinth
Sealing ring is directly exposed in soil cabin, is easy to be worn by sandstone in rotation, thus be designed as it is detachable, convenient for into cabin quickly more
It changes, by being provided with floating seal ring, floating seal ring is not fixed installation, guarantees to be sealed with rotary shaft in rotation concentric, enhancing
Sealing effect.
(2) present invention is by being provided with compensation bracket, as Auxiliary support, effectively mitigate cutter head center block support force and
Torque, compensation rotating shaft and the main driving concentricity of cutterhead, to reduce abnormal caused by the local compression to floating seal ring
Damage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of novel sealing form shield machine center steering body of the present invention；
Fig. 2 is the structural schematic diagram that bracket is compensated in novel sealing form shield machine center steering body of the present invention；
Fig. 3 is the structural schematic diagram of labyrinth seal ring in novel sealing form shield machine center steering body of the present invention.
Description of symbols:
1, shell；2, rear revolving body；3, transition plates；4, preceding revolving body；41, floating seal ring；411, floating ring end cap；
42, labyrinth seal ring；421, labyrinth semicircular ring；422, bolt is connected；423, flat key is positioned；424, positioning screw；5, rotation stop frame；
6, bracket is compensated；61, fixed plate；62, elastic device；621, spring；622, bolt；63, support plate.
Specific embodiment
The present invention is further described in detail with reference to the accompanying drawing, these attached drawings are simplified schematic diagram, only
The basic structure that the invention is illustrated in a schematic way, the direction of this specific implementation is using the direction Fig. 1 as standard.
Embodiment one
As shown in Figure 1-Figure 3, novel sealing form shield machine center steering body of the present invention includes shell 1, rear revolving body 2, mistake
Cab apron 3, preceding revolving body 4 and rotation stop frame 5, in which:
Revolving body 2 is arranged in shell 1 afterwards, and rear revolving body 2 and preceding revolving body 4 are connected by transition plates 3, transition plates 3 one
Side is fixedly connected with rear revolving body 2, and 3 another side of transition plates is fixedly connected with preceding revolving body 4, is set on preceding 4 surface of revolving body
It is equipped with floating seal ring 41 and labyrinth seal ring 42, the setting of labyrinth seal ring 42 is stretched in floating seal ring 41 by nearby revolving body 4
Outlet side, floating seal ring 41 have three VD lip seal configurations, and floating seal ring 42 includes two labyrinth semicircular rings
421, bolt 422, positioning flat key 423 and positioning screw 424 are connected, two labyrinth semicircular rings 421 are combined by connection bolt 422
Installation is fixed, and positioning screw 424 is arranged in labyrinth semicircular ring 421, and positioning flat key is arranged on the inner end of positioning screw, is floated
Floating ring end cap 411 is provided on 41 surface of rotary packing ring, maximum pressure is pusher axial compressive force in native storehouse, passes through setting
There is labyrinth seal ring 42, can effectively stop mud, dregs, sandstone axially to squeeze into floating seal ring 41, and according to driving soil layer
The case where labyrinth clearance adjusted by positioning screw 424 and positioning flat key 423, labyrinth seal ring 42 and preceding revolving body 4 are removable
Unload connection, labyrinth seal ring 42 is directly exposed in soil cabin, in rotation be easy worn by sandstone, therefore be designed as it is detachable,
Convenient for into cabin quick-replaceable, by being provided with floating seal ring 41, floating seal ring 41 is not fixed installation, guarantee to seal in rotation
Have that rotary shaft is concentric, enhances sealing effect.
The setting of rotation stop frame 5 is provided with compensation bracket 6, compensation branch on 1 bottom of preceding revolving body 4 and shell, 5 side of rotation stop frame
Frame 6 includes fixed plate 61, elastic device 62 and support plate 63, and fixed plate 61 is fixed at the side of rotation stop frame 5 by screw
On, 62 one end of elastic device is fixed in fixed plate 61, and the other end is fixed in support plate 63, and elastic device 62 wraps
Spring 621 and bolt 622 are included, spring 621 is set on bolt 622, and 622 upper end of bolt is threadedly secured to support plate 63
On, 622 lower end of bolt is fixed in fixed plate 61 by nut, and spring 621 is arranged between support plate 63 and fixed plate 61, branch
Fagging 63 and 1 bottom of shell, which contradict, to be arranged, and by being provided with compensation bracket 6, as Auxiliary support, effectively mitigates cutter head center block
Support force and torque, the compensation rotating shaft and main driving concentricity of cutterhead, to reduce the local compression to floating seal ring 41
Caused abnormal damage.
The foregoing is merely better embodiments of the invention, and the invention is not limited to above embodiment, are implementing
The structural modification small there may be part in the process, if various changes or modifications of the invention are not departed from essence of the invention
Mind and range, and belong within the scope of claim and equivalent technologies of the invention, then the present invention is also intended to encompass these changes
And modification.
Claims (5)
1. a kind of novel sealing form shield machine center steering body, which is characterized in that including shell, rear revolving body, transition plates, preceding time
Swivel and rotation stop frame, the rear revolving body are arranged in shell, and the rear revolving body is connected with preceding revolving body by transition plates, institute
Floating seal ring and labyrinth seal ring are provided with before stating on revolving body surface, the labyrinth seal ring setting is leaned in floating seal ring
Nearby revolving body extension end side, described includes two labyrinth semicircular rings, connection bolt, positioning flat key and positioning screw, and two
Labyrinth semicircular ring is fixed by connection bolt combination installation, and positioning screw is arranged in the semicircular ring of labyrinth, and positioning flat key setting exists
On the inner end of positioning screw；The floating seal ring has three VD lip seal configurations, and the rotation stop frame is arranged at preceding time
Swivel and housing bottom, the rotation stop frame are provided with compensation bracket on side.
2. novel sealing form shield machine center steering body according to claim 1, which is characterized in that the transition plates side
Face is fixedly connected with rear revolving body, and the transition plates another side is fixedly connected with preceding revolving body.
3. novel sealing form shield machine center steering body according to claim 1, which is characterized in that the floating seal ring
Floating ring end cap is provided on surface.
4. novel sealing form shield machine center steering body according to claim 1, which is characterized in that the compensation bracket packet
Fixed plate, elastic device and support plate are included, the fixed plate is fixed on the side of rotation stop frame by screw, the elasticity
Device one end is fixed in fixed plate, and the other end is fixedly installed on the supporting plate, and the support plate and housing bottom contradict
Setting.
5. novel sealing form shield machine center steering body according to claim 4, which is characterized in that the elastic device packet
Spring and bolt are included, spring is set on bolt, and bolt upper end is threadedly secured in support plate, and bolt lower end passes through nut
It is fixed in fixed plate, spring is arranged between support plate and fixed plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710658651.3A CN107313780B (en) | 2017-08-04 | 2017-08-04 | Novel sealing form shield machine center steering body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710658651.3A CN107313780B (en) | 2017-08-04 | 2017-08-04 | Novel sealing form shield machine center steering body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107313780A CN107313780A (en) | 2017-11-03 |
| CN107313780B true CN107313780B (en) | 2018-12-07 |
Family
ID=60170324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710658651.3A Active CN107313780B (en) | 2017-08-04 | 2017-08-04 | Novel sealing form shield machine center steering body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313780B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442934B (en) * | 2018-03-28 | 2019-11-05 | 辽宁工程技术大学 | A kind of shield machine sealing structure for set of tunneling construction |
| CN109681709A (en) * | 2018-12-14 | 2019-04-26 | 中船重型装备有限公司 | A kind of shield machine flexible conduit centre revolving joint |
| CN109681218B (en) * | 2018-12-14 | 2020-10-30 | 中船重型装备有限公司 | Novel central revolving body of shield tunneling machine |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2930577B1 (en) * | 1998-03-20 | 1999-08-03 | 川崎重工業株式会社 | Two-stage shield machine |
| JP2000145378A (en) * | 1998-11-13 | 2000-05-26 | Daiho Constr Co Ltd | Shaft-section seal structure |
| CN2672337Y (en) * | 2003-08-28 | 2005-01-19 | 广东凌霄泵业股份有限公司 | Novel seal structure multi stage centrifugal pump |
| CN201908659U (en) * | 2010-12-24 | 2011-07-27 | 三一重型装备有限公司 | Dustproof structure of cutting part of heading machine |
| CN102494136B (en) * | 2011-11-30 | 2015-02-04 | 广州广船国际股份有限公司 | Seal structure of main shaft of excavating equipment |
| CN202867855U (en) * | 2012-09-14 | 2013-04-10 | 上海申科滑动轴承有限公司 | Explosion-proof type labyrinth seal |
| CN203239932U (en) * | 2013-02-21 | 2013-10-16 | 北京建科汇峰科技有限公司 | Large shield tunneling machine lip-shaped seal ring |
| 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 |
| CN204083753U (en) * | 2014-09-20 | 2015-01-07 | 辽宁三三工业有限公司 | Shield machine centre revolving joint |
| CN105508620B (en) * | 2016-01-18 | 2017-12-05 | 沈阳航空航天大学 | It is a kind of acted on using gas differential pressure realize float from concentric seal and its installation method |
| CN205654354U (en) * | 2016-04-29 | 2016-10-19 | 中铁工程装备集团有限公司 | Shield constructs unsteady connecting device of quick -witted centre revolving joint |
| CN205558914U (en) * | 2016-04-29 | 2016-09-07 | 中交天和机械设备制造有限公司 | A centre revolving joint for shield constructs quick -wittedly |
| CN106641267B (en) * | 2016-11-24 | 2017-12-29 | 江苏凯宫隧道机械有限公司 | Shield machine center steering body leakage-preventing sealing device |
| 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 |
-
2017
- 2017-08-04 CN CN201710658651.3A patent/CN107313780B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107313780A (en) | 2017-11-03 |
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