CN206753596U - Adapt to the shield hobboing cutter sealing that high hydraulic pressure environment uses - Google Patents
Adapt to the shield hobboing cutter sealing that high hydraulic pressure environment uses Download PDFInfo
- Publication number
- CN206753596U CN206753596U CN201720502865.7U CN201720502865U CN206753596U CN 206753596 U CN206753596 U CN 206753596U CN 201720502865 U CN201720502865 U CN 201720502865U CN 206753596 U CN206753596 U CN 206753596U
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- Prior art keywords
- cutter
- ring
- hobboing cutter
- end cover
- pressure environment
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Abstract
The utility model discloses a kind of shield hobboing cutter sealing for adapting to high hydraulic pressure environment and using, including cutter shaft（1）, in addition to plug cock（2）, upper end cover（14）, bottom end cover（3）, knife hub（4）, cutter ring（5）, bearing（7）, floating seal（9）With fixed baffle ring（10）, upper end cover（14）, bottom end cover（3）And bearing（7）Equal interference fit is in cutter shaft（1）On, bearing（7）Bearing outer ring elastic conjunction in knife hub（4）Inside, cutter ring（5）It is nested with knife hub（4）On.Moveable piston of the present utility model can move in cutter shaft inner intracavitary, when hobboing cutter external pressure environment changes, according to The Ideal-Gas Equation formula, pressure inside hobboing cutter is adjusted by movement of the moveable piston in cutter shaft die cavity, it is set to keep dynamic equilibrium with the pressure outside hobboing cutter, so as to ensure the stability of shield hobboing cutter hobboing cutter performance when high hydraulic pressure environment tunnels.
Description
Technical field
The shield cutter technical field that the utility model belongs in underground engineering application, and in particular to one kind adapts to high hydraulic pressure
The shield hobboing cutter sealing that environment uses.
Background technology
Railway traffic engineering is just vigorously built in the current each big city in China, shield method due to its unrivaled advantage,
Extensive use is obtained in rail tunnel construction.
Shield machine is that hobboing cutter is shield in recent years in underground engineering and wide variety of a kind of construction machinery in tunnel piercing
A kind of one of Common Use Tools for being used to tunnel, are mainly made up of cutter ring on machine knife disk.Hobboing cutter at work, relies primarily on hobboing cutter rotation
Turn impulsive force and extruding force broken rock caused by propulsion.Due to the high intensity and high rigidity of massif rock, make hobboing cutter cutter ring broken
Very big radial forces are subjected to during rock, and also suffer the sharp wear of hard mineral facies in rock, work as hobboing cutter
When external pressure environment changes, hobboing cutter is easily broken.
Utility model content
The purpose of this utility model is, for above-mentioned the deficiencies in the prior art, there is provided one kind adapts to high hydraulic pressure environment and used
Shield hobboing cutter sealing, the hobboing cutter sealing can when hobboing cutter external pressure environment changes, hobboing cutter can adjust hobboing cutter inside
Pressure, it is set to keep dynamic equilibrium with the pressure outside hobboing cutter.
In order to solve the above technical problems, technical scheme is as follows used by the utility model：
The utility model adapts to the shield hobboing cutter sealing that high hydraulic pressure environment uses, including cutter shaft, in addition to plug cock, upper end
Lid, bottom end cover, knife hub, cutter ring, bearing, floating seal and fixed baffle ring, bottom end cover and the equal interference fit of bearing are in cutter shaft
On, inside knife hub, cutter ring is nested with knife hub bearing elastic conjunction, and cutter ring limits its axial movement by fixed baffle ring,
Floating seal is arranged in upper end cover, bottom end cover and gland to realize the seal request of hobboing cutter, and plug cock is arranged on upper end cover with
On end cap.
As preferred scheme of the present utility model, the cutter shaft is provided with internal die cavity, and internally die cavity is internally provided with shifting
Piston, internally die cavity termination be provided with tight fixed bolt, be provided with through hole at tight fixed bolt center, in high hydraulic pressure environment, muddy water
Cutter shaft die cavity is entered by tight fixed bolt through hole, moves piston, to realize the pressure balance inside and outside hobboing cutter.
As preferred scheme of the present utility model, the cutter ring quantity is two, is arranged on before and after two cutter rings on knife hub,
Spacer ring is provided between two cutter rings, back-up ring is provided with the right side of the cutter ring positioned at right side, and back-up ring is snapped onto on knife hub.
As preferred scheme of the present utility model, centre bore is provided with spacer ring, the quantity of the centre bore is four, is led to
Centre bore is crossed to realize flowing of the lubricating oil inside hobboing cutter between cutter shaft die cavity.
As preferred scheme of the present utility model, the size of the cutter ring is 19 cun.
The advantages of shield hobboing cutter sealing that the high hydraulic pressure environment of the utility model adaptation uses is that moveable piston can be in knife
Axle inner intracavitary moves, when hobboing cutter external pressure environment changes, according to The Ideal-Gas Equation formula, by can
Movement of the piston in cutter shaft die cavity is moved to adjust the pressure inside hobboing cutter, makes it keep dynamic flat with the pressure outside hobboing cutter
Weighing apparatus, so as to ensure the stability of shield hobboing cutter hobboing cutter performance when high hydraulic pressure environment tunnels, so as to cost saving, reduce
Surrounding enviroment influence, shortening duration etc. are significant, and economic and social benefit is notable.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Embodiment
As shown in drawings, the utility model adapts to the shield hobboing cutter sealing that high hydraulic pressure environment uses, including cutter shaft 1, also wraps
Include plug cock 2, upper end cover 14, bottom end cover 3, knife hub 4, cutter ring 5, bearing 7, floating seal 9 and fixed baffle ring 10, upper end cover 14, under
End cap 3 and 7 equal interference fit of bearing are on cutter shaft 1, and the bearing outer ring elastic conjunction of bearing 7 is inside knife hub 4, cutter ring 5
It is nested with knife hub 4, cutter ring 5 limits its axial movement by fixed baffle ring 10, and floating seal 9 is arranged on upper end cover, lower end
The seal request of hobboing cutter is realized in lid and gland 15, plug cock 2 is arranged on upper end cover and bottom end cover.The quantity of plug cock is three
Individual, one of them is arranged on bottom end cover for three plug cocks, and two other is arranged on upper end cover.
The cutter shaft 1 is provided with internal die cavity, and internally die cavity is internally provided with mobile piston 12, and internally die cavity termination is set
There is tight fixed bolt 13, be provided with through hole at the center of tight fixed bolt 13, in high hydraulic pressure environment, muddy water is entered by tight fixed bolt through hole
Cutter shaft die cavity, moves piston, to realize the pressure balance inside and outside hobboing cutter.When hobboing cutter assembles, the position of mobile piston has
It is certain to require, it is necessary to according to specifically used operating mode by being calculated.
The quantity of cutter ring 5 is two, is arranged on knife hub 4 before and after two cutter rings 5, is provided between two cutter rings 5
Spacer ring 6, back-up ring 8 is provided with the right side of the cutter ring positioned at right side, and back-up ring is snapped onto on knife hub.
Further, cutter ring 5 is preferably dimensioned to be 19 cun, and the size increases its wear-resisting limiting quantity, reduces number of changing knife.
Centre bore is provided with spacer ring 6, the quantity of the centre bore is four, realizes that lubricating oil is rolling by centre bore
Flowing inside knife between cutter shaft die cavity.Circulated for the oil gas inside hob-cutter structure with external environment condition.
In structure design of the present utility model, moveable piston can move in cutter shaft inner intracavitary, when outside hobboing cutter
When portion's pressure environment changes, according to The Ideal-Gas Equation formula, pass through shifting of the moveable piston in cutter shaft die cavity
Moving to adjust the pressure inside hobboing cutter, makes it keep dynamic equilibrium with the pressure outside hobboing cutter, so as to ensure shield hobboing cutter in height
The stability of hobboing cutter performance when hydraulic pressure environment tunnels.
Claims (5)
1. a kind of shield hobboing cutter sealing for adapting to high hydraulic pressure environment and using, including cutter shaft（1）, it is characterised in that：Also include plug cock
（2）, upper end cover（14）, bottom end cover（3）, knife hub（4）, cutter ring（5）, bearing（7）, floating seal（9）With fixed baffle ring（10）, on
End cap（14）, bottom end cover（3）And bearing（7）Equal interference fit is in cutter shaft（1）On, bearing（7）Bearing outer ring interference dress
Fit over knife hub（4）Inside, cutter ring（5）It is nested with knife hub（4）On, cutter ring（5）Pass through fixed baffle ring（10）Axially moved to limit it
It is dynamic, floating seal（9）It is arranged on upper end cover, bottom end cover and gland（15）In realize the seal request of hobboing cutter, plug cock（2）Set
On upper end cover and bottom end cover.
2. the shield hobboing cutter sealing according to claim 1 for adapting to high hydraulic pressure environment and using, it is characterised in that：The cutter shaft
（1）Internal die cavity is provided with, internally die cavity is internally provided with mobile piston（12）, internally die cavity termination be provided with tight fixed bolt
（13）, in tight fixed bolt（13）Center is provided with through hole, and in high hydraulic pressure environment, muddy water enters cutter shaft type by tight fixed bolt through hole
Chamber, move piston, to realize the pressure balance inside and outside hobboing cutter.
3. the shield hobboing cutter sealing according to claim 1 for adapting to high hydraulic pressure environment and using, it is characterised in that：The cutter ring
（5）Quantity is two, two cutter rings（5）It is front and rear to be arranged on knife hub（4）On, in two cutter rings（5）Between be provided with spacer ring（6）,
Back-up ring is provided with the right side of the cutter ring positioned at right side（8）, and back-up ring is snapped onto on knife hub.
4. the shield hobboing cutter sealing according to claim 3 for adapting to high hydraulic pressure environment and using, it is characterised in that：In spacer ring
（6）On be provided with centre bore, the quantity of the centre bore is four, realizes lubricating oil inside hobboing cutter and cutter shaft by centre bore
Flowing between die cavity.
5. the shield hobboing cutter sealing according to claim 1 for adapting to high hydraulic pressure environment and using, it is characterised in that：The cutter ring
（5）Size be 19 cun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502865.7U CN206753596U (en) | 2017-05-08 | 2017-05-08 | Adapt to the shield hobboing cutter sealing that high hydraulic pressure environment uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502865.7U CN206753596U (en) | 2017-05-08 | 2017-05-08 | Adapt to the shield hobboing cutter sealing that high hydraulic pressure environment uses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206753596U true CN206753596U (en) | 2017-12-15 |
Family
ID=60617513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720502865.7U Active CN206753596U (en) | 2017-05-08 | 2017-05-08 | Adapt to the shield hobboing cutter sealing that high hydraulic pressure environment uses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206753596U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278321A (en) * | 2021-12-31 | 2022-04-05 | 株洲硬质合金集团有限公司 | TBM hob pressure release device, TBM hob and assembling process |
| CN116044425A (en) * | 2022-06-29 | 2023-05-02 | 中铁工程装备集团隧道设备制造有限公司 | Shaft type triple hob for shield cutter head |
-
2017
- 2017-05-08 CN CN201720502865.7U patent/CN206753596U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278321A (en) * | 2021-12-31 | 2022-04-05 | 株洲硬质合金集团有限公司 | TBM hob pressure release device, TBM hob and assembling process |
| CN114278321B (en) * | 2021-12-31 | 2023-08-22 | 株洲硬质合金集团有限公司 | TBM hob pressure release device, TBM hob and assembly process |
| CN116044425A (en) * | 2022-06-29 | 2023-05-02 | 中铁工程装备集团隧道设备制造有限公司 | Shaft type triple hob for shield cutter head |
| CN116044425B (en) * | 2022-06-29 | 2023-12-08 | 中铁工程装备集团隧道设备制造有限公司 | Shaft type triple hob for shield cutter head |
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| GR01 | Patent grant |