CN206769909U - A kind of shield cutter rotary central shaft soil sand sealing structure - Google Patents
A kind of shield cutter rotary central shaft soil sand sealing structure Download PDFInfo
- Publication number
- CN206769909U CN206769909U CN201720465527.0U CN201720465527U CN206769909U CN 206769909 U CN206769909 U CN 206769909U CN 201720465527 U CN201720465527 U CN 201720465527U CN 206769909 U CN206769909 U CN 206769909U
- Authority
- CN
- China
- Prior art keywords
- sealing
- central shaft
- cutter rotary
- rotary central
- lip packing
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 77
- 239000002689 soil Substances 0.000 title claims abstract description 24
- 239000004576 sand Substances 0.000 title claims abstract description 21
- 238000012856 packing Methods 0.000 claims abstract description 39
- 239000004519 grease Substances 0.000 claims description 23
- 238000005299 abrasion Methods 0.000 abstract description 6
- 230000008439 repair process Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A kind of shield cutter rotary central shaft soil sand sealing structure, including cutter rotary central shaft and native storehouse dividing plate, sealing is provided with native storehouse dividing plate in the position corresponding with cutter rotary central shaft to support, sealing is installed in sealing support, sealing includes at least one of lip packing and at least twice combination lip packing, sleeve is removably secured on cutter rotary central shaft, sealing is close to the surface of sleeve.The characteristics of the utility model has good seal performance, and rotary middle spindle abrasion is small, repairs simplicity, and cost is low.
Description
Technical field
Shield method tunnel construction field is the utility model is related to, especially relates to a kind of shield cutter rotary central shaft
Soil sand sealing structure.
Background technology
Shield cutter rotary central shaft is the important component of shield, in shield machine soil storehouse dividing plate and main driving
The heart, be connecting fluid inside shield to the unique passage cutterhead；Generally it is rigidly connected with cutterhead spoke and follows cutterhead
Rotation, axis body are stretched into shield body, are connected with shield machine internal flow pipeline.At present, rotary middle spindle is more using central shaft, close
Envelope, the design of connector, the sealing of existing cutter rotary central shaft are primarily present following weak point：1) seal simpler
Single, sealing property is low, if occurring soil sand seal failure in tunneling process, soil sand easily causes axle into parts of bearings in native storehouse
Hold the abrasion of stuck or rotary middle spindle；2) in tunneling process, soil sand easily grinds cutter rotary central shaft into sealing in native storehouse
Going out a lot of groove, rotary middle spindle abrasion is big, thus reduces the sealing of each fluid circuit in cutter rotary center and axle,
Cause shield machine sediment improvement not in place or imitation-shaped knife fails；3) the revolving body central shaft after wearing repairs complexity, need to remove whole
Individual rotary middle spindle, subsequent job could be carried out, workload is big, low construction efficiency, and cost is high.
Utility model content
The utility model is in order to solve the above-mentioned technical problem, there is provided and a kind of good seal performance, rotary middle spindle abrasion is small,
Repair easy, the low shield cutter rotary central shaft soil sand sealing structure of cost.
In order to realize the purpose of this utility model, used technical scheme is：A kind of shield cutter rotary central shaft soil
Sand sealing structure, including cutter rotary central shaft and native storehouse dividing plate, relative with cutter rotary central shaft on the native storehouse dividing plate
The position answered is provided with sealing and supported, and sealing is provided with the sealing support, it is characterised in that：The sealing is included at least together
Lip packing and at least twice combine lip packing, and sleeve has been removably secured on the cutter rotary central shaft, described close
Envelope is close to the surface of sleeve.
As further improvement of the utility model, the combination lip packing is connected to form by two lip packing,
As further improvement of the utility model, combine and be provided with the first grease between two lip packing of lip packing
Hand-hole, the sealing support is interior to be provided with the grease channel being connected with the first grease hand-hole.
As further improvement of the utility model, the sealing is provided with the second grease note between being supported on adjacent sealing
Enter hole, the grease channel being connected with the second grease hand-hole is provided with the sealing support.
As further improvement of the utility model, the length of the sleeve is more than the sealing model of cutter rotary central shaft
Enclose, make position of the sleeve on cutter rotary central shaft adjustable.
As further improvement of the utility model, the combination sealing is bolted in sealing support.
As further improvement of the utility model, the lip packing has together, and the combination lip packing has twice,
Order according to lip packing, combination lip packing, combination lip packing is arranged in order.
The beneficial effects of the utility model are：First, Seal Design is optimized, combining lip packing by least twice enhances
The sealing property of cutter rotary center sealing, bearing caused by avoiding seal failure is stuck or cutter rotary central shaft wears
The problem of；2nd, by the setting of sleeve, by cutter rotary central shaft and sealed separation, it is direct to avoid cutter rotary central shaft
Contacted with sealing and soil sand, reduce the abrasion of cutter rotary central shaft, ensure that the sealing effectiveness of cutter rotary central shaft with
Service life；3rd, sleeve cost is low, service life length, maintenance time is few, is not required to frequently change, and sleeve is detachable, repair and
It is convenient to change, during reparation or replacing, it is not necessary to remove cutter rotary central shaft, have easy to maintenance, operating efficiency
The characteristics of high.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Wherein, cutter rotary central shaft 10, native storehouse dividing plate 20, sealing support 21, grease channel 211, the injection of the second grease
Hole 212, sealing 30, lip packing 31, combination lip packing 32, the first grease hand-hole 321, sleeve 40.
Embodiment
With reference to specific embodiment and accompanying drawing, the utility model is described in further detail.
As shown in figure 1, a kind of shield cutter rotary central shaft soil sand sealing structure, including cutter rotary central shaft 10 and soil
Storehouse dividing plate 20, sealing support 21, sealing support are provided with native storehouse dividing plate 20 in the position corresponding with cutter rotary central shaft 10
Sealing 30 is installed, sealing 30 includes at least one of lip packing 31 and at least twice combination lip packing 32, cutterhead return on 21
Turn to be removably secured sleeve 40 on central shaft 10, the surface of sleeve 40 is close to 30 lips of sealing, by sealing 30 and cutterhead
Rotary middle spindle 10 is separated.In the present embodiment, combination lip packing 32 is connected to form by two lip packing；Lip packing
31 have together, and combination lip packing 32 has twice, according to lip packing 31, combination lip packing 32, combine lip packing 32
Order is arranged in order；The build-in of lip packing 31 is close in sealing support 21, and combination lip packing 32 is fixed by bolts to sealing
In support 21；Sleeve 40 is replaceable wear-resisting steel bushing；Sleeve 40 is fixed on cutter rotary central shaft 10 by way of welding
On, sleeve 40 dismantled by way of weld seam removal, is firmly installed and easy-to-dismount purpose so as to reach.When needing to repair
Or when changing sleeve 40, first the weld seam between sleeve 40 and cutter rotary central shaft 10 is removed, then entirely removed sleeve 40,
It is welded on again on cutter rotary central shaft 10 again after repairing or renewing.
In the present embodiment, the sealing property of two seals, so close at first after being strengthened with combination lip packing 32
In the case that envelope effect is undesirable, the sealing of second and third road can still ensure sealing effectiveness, so as to prevent that soil sand enters cutterhead in native storehouse
In rotary middle spindle 10 and shield machine；In addition, cutter rotary central shaft 10 and sealing 30 are separated using sleeve 40, so as to keep away
The soil sand exempted from sealing 30 causes abrasion or stuck to cutter rotary central shaft 10, ensures the sealing of cutter rotary central shaft 10
Effect and service life；When the serious wear of sleeve 40 needs to repair or changed, it is not required to pull down cutter rotary central shaft 10, directly
Connect and sleeve 40 is taken apart into reparation or changed, there is the characteristics of easy to maintenance, operating efficiency is high, and cost is low.
Further, the first grease hand-hole 321, sealing support are provided between two lip packing of combination lip packing 32
The grease channel 211 being connected with the first grease hand-hole 321 is provided with 21；Sealing support 21 is set between adjacent sealing 30
There is the second grease hand-hole 212 being connected with grease channel 211.Cavity between sealing 30 is using the first grease hand-hole
321 and second the grease that injects of grease hand-hole 212 be filled lubrication, can effectively prevent soil sand in native storehouse from entering to seal
In 30, sealing function is played.
Further, the length of sleeve 40 is more than the sealing range of cutter rotary central shaft 10, makes sleeve 40 in cutter rotary
Position on central shaft 10 is adjustable.When there is effect of attrition sealing effectiveness in sleeve 40, it is not necessary to change immediately, adjusting sleeve can be passed through
Cylinder 40 and the relative position of sealing 30, make the lip of sealing 30 be close to the surface of sleeve 40 that is new, not being worn, close so as to ensure
The sealing property of envelope 30.When adjusting sleeve 40 and the relative position of sealing 30, first by between sleeve 40 and cutter rotary central shaft 10
Weld seam remove, then adjust the position of sleeve 40, the lip of sealing 30 is close to the surface of sleeve 40 that is new, not being worn, most
Sleeve 40 is welded on cutter rotary central shaft 10 again afterwards.
In summary, such as specification and diagramatic content actual sample is made and through test is used for multiple times in the utility model,
In terms of the effect using test, provable the utility model can reach its desired purpose, and practical value is unquestionable.
Embodiment provided above is only used for convenient illustration the utility model, not makees any formal limit to the utility model
System, any those of ordinary skill in the art, if in the range of not departing from the utility model and carrying technical characteristic,
Using the equivalent embodiment for locally changing or modifying made by the utility model disclosed technology content, and without departing from this practicality
New technical feature content, in the range of still falling within the utility model technical characteristic.
Claims (7)
1. a kind of shield cutter rotary central shaft soil sand sealing structure, including cutter rotary central shaft and native storehouse dividing plate, the soil
Sealing is provided with the position corresponding with cutter rotary central shaft to support, sealing is installed in the sealing support on the dividing plate of storehouse,
It is characterized in that：Described seal includes at least one of lip packing and at least twice combination lip packing, in the cutter rotary
Sleeve is removably secured in mandrel, the sealing is close to the surface of sleeve.
A kind of 2. shield cutter rotary central shaft soil sand sealing structure according to claim 1, it is characterised in that：Described group
Lip packing is closed to be connected to form by two lip packing.
A kind of 3. shield cutter rotary central shaft soil sand sealing structure according to claim 2, it is characterised in that：Combine lip
The first grease hand-hole is provided between two lip packing of shape sealing, is provided with and the first grease hand-hole in the sealing support
The grease channel being connected.
A kind of 4. shield cutter rotary central shaft soil sand sealing structure according to claim 1, it is characterised in that：It is described close
Envelope is provided with the second grease hand-hole between being supported on adjacent sealing, is provided with and the second grease hand-hole phase in the sealing support
The grease channel of connection.
A kind of 5. shield cutter rotary central shaft soil sand sealing structure according to claim 1, it is characterised in that：The set
The length of cylinder is more than the sealing range of cutter rotary central shaft, makes position of the sleeve on cutter rotary central shaft adjustable.
A kind of 6. shield cutter rotary central shaft soil sand sealing structure according to claim 1, it is characterised in that：Described group
Lip packing is closed to be bolted in sealing support.
7. a kind of shield cutter rotary central shaft soil sand sealing structure according to claim any one of 1-6, its feature exist
In：The lip packing has together, and the combination sealing has twice, close according to lip packing, combination lip packing, combination lip
The order of envelope is arranged in order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720465527.0U CN206769909U (en) | 2017-04-28 | 2017-04-28 | A kind of shield cutter rotary central shaft soil sand sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720465527.0U CN206769909U (en) | 2017-04-28 | 2017-04-28 | A kind of shield cutter rotary central shaft soil sand sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206769909U true CN206769909U (en) | 2017-12-19 |
Family
ID=60634598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720465527.0U Expired - Fee Related CN206769909U (en) | 2017-04-28 | 2017-04-28 | A kind of shield cutter rotary central shaft soil sand sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206769909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233860A (en) * | 2021-12-28 | 2022-03-25 | 中铁工程装备集团有限公司 | TBM and TBM main driving device |
| CN114233860B (en) * | 2021-12-28 | 2024-05-17 | 中铁工程装备集团有限公司 | TBM and TBM main driving device |
-
2017
- 2017-04-28 CN CN201720465527.0U patent/CN206769909U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233860A (en) * | 2021-12-28 | 2022-03-25 | 中铁工程装备集团有限公司 | TBM and TBM main driving device |
| CN114233860B (en) * | 2021-12-28 | 2024-05-17 | 中铁工程装备集团有限公司 | TBM and TBM main driving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 |