CN206608180U - A kind of slurry shield machine hobboing cutter with multi-sealing structure - Google Patents
A kind of slurry shield machine hobboing cutter with multi-sealing structure Download PDFInfo
- Publication number
- CN206608180U CN206608180U CN201720313953.2U CN201720313953U CN206608180U CN 206608180 U CN206608180 U CN 206608180U CN 201720313953 U CN201720313953 U CN 201720313953U CN 206608180 U CN206608180 U CN 206608180U
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- China
- Prior art keywords
- cutter
- end cap
- seal
- sealing
- shield machine
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- 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
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of slurry shield machine hobboing cutter with multi-sealing structure, belongs to shield machine field of components.It includes installing the cutter hub of cutter ring, sealing support and a left side that the cutter shaft and Bearing outer installed in the axis hole of cutter hub by bearing are set, right end cap, the cutter hub and a left side, right end cap joint is provided with conical grooves, an external floating seal is provided with the conical grooves, form the first resealing, the cutter hub and a left side, right end cap joint is provided with seal groove, dynamic seal is provided with the seal groove, form the second resealing, the cutter hub is provided with O-ring seal with sealing support joint, form triple seal, the sealing support and a left side, conical bore is provided with the inside of right end cap, floating seal in one pair is provided with the conical bore, form the 4th resealing, it is final to ensure that impurity enter inside hobboing cutter.The hobboing cutter sealing structure good sealing effect, is conducive to extending under high hydraulic pressure muddy water environment the service life of shield machine roller cutter.
Description
Technical field
The utility model belongs to shield machine field of components, and in particular to sealing structure, more particularly to a kind of with multiple close
The slurry shield machine hobboing cutter of seal structure.
Background technology
Hobboing cutter be on shield excavation machine be used for tunnel critical piece, hobboing cutter mainly by cutter ring, cutter hub, cutter shaft, bearing and
Sealing composition.Sealing structure is the critical piece for ensureing hobboing cutter internal pressure and bearing normal work, once bad seals,
The impurity such as outside muddy water, native slag will be caused to enter inside hobboing cutter, rolling blade losing efficacy is caused, reduce the operating efficiency of shield machine, very
To the personnel that directly influence, the safety of equipment.
The sealing effectiveness of hobboing cutter is always problem of concern, and such as China Patent Publication No. is：CN 205225265U,
Publication date is：The patent document on May 11st, 2016, discloses a kind of closed type shield machine roller cutter, and its cutter shaft is arranged on rolling
In dynamic bearing, limit baffle ring of the outer peripheral face provided with annular of cutter shaft left end, the lateral surface of left end cap is provided with and spacing ring phase
The stopper slot of matching, the right-hand member of cutter shaft is threadedly coupled with right end cap, and the intersection of left end cap and right end cap and cutter hub is provided with
Floating seal ring, provided with left end cap sealing on the cutter shaft of left end cap and rolling bearing intersection, is handed in right end cap and rolling bearing
Cutter shaft at boundary is sealed provided with right end cap.The utility model is only to having carried out seal en-hancement between end cap and cutter hub, in high hydraulic pressure
Under muddy water environment, extraneous muddy water and native slag are entered in floating seal easily by the gap between cutter hub and end cap, cause to float
Dynamic sealing fails, and only primary seal, and sealing effectiveness is undesirable.
The content of the invention
A kind of slurry shield machine with multi-sealing structure is that providing a kind of two ends has multiple with the purpose of hobboing cutter
The shield machine roller cutter of sealing structure, can be applicable the shield-tunneling construction of more adverse circumstances, solve current hob cutter for shield machine sealing
The problem of DeGrain, extend the service life of shield machine roller cutter.
The purpose of this utility model is to be achieved through the following technical solutions：
A kind of slurry shield machine hobboing cutter with multi-sealing structure, mainly including cutter shaft, cutter hub, outer floating seal,
Interior floating seal, sealing support, left end cap, right end cap, bearing, cutter ring, wherein sealing support is arranged on cutter hub two by external diameter
In the stepped hole at end, its inner side offers, conical bore for install interior floating seal, its periphery symmetrical with left and right end cap
Seal groove is offered on face, for mounting O-shaped sealing ring, right end cap is arranged on the right-hand member of cutter shaft by its endoporus, and its inner side is opened
It is symmetrical with cutter hub provided with being offered with sealing support on symmetrical, the conical bore for installing interior floating seal, its outer peripheral face,
Seal groove is offered on conical grooves for installing outer floating seal, its outer peripheral face, for installing dynamic seal, left end cap leads to
The left end that its endoporus is arranged on cutter shaft is crossed, its inner side offers, circle for install interior floating seal symmetrical with sealing support
, conical grooves for install outer floating seal symmetrical with cutter hub are offered on taper hole, its outer peripheral face, its radial direction offers close
Sealing groove, circle for install outer floating seal symmetrical with left and right end cap is offered for installing on dynamic seal, cutter hub
Bore groove.
The sealing supporting section can be quadrangle, pentagon or polygon.
The O-ring seal is the circular ring being made up of rubber.
The dynamic seal is lip-type packing.
The beneficial effects of the utility model are：It is close by the outer floating in cutter hub and left end cap, the setting of right end cap joint
Envelope, forms the first resealing, prevents the impurity such as the soil of bulky grain to enter inside hobboing cutter；By in outer floating seal and interior
The dynamic seal set between floating seal, forms the second resealing, prevents the little particle impurity such as muddy water to enter hobboing cutter
It is internal；By setting O-ring seal at cutter hub with sealing support composition surface, triple seal is formd；By in sealing branch
Support and left end cap, right end cap joint set interior floating seal, form the 4th resealing, finally ensure that impurity will not enter rolling
Inside knife.The hobboing cutter sealing structure good sealing effect, adapts to the shield-tunneling construction under high hydraulic pressure and adverse circumstances, is conducive in height
Extend the service life of shield machine roller cutter under hydraulic pressure muddy water environment.
Brief description of the drawings
Fig. 1 is a kind of slurry shield machine hobboing cutter main structure diagram with multi-sealing structure.
Fig. 2 is a kind of slurry shield machine hobboing cutter left view structural representation with multi-sealing structure.
Fig. 3 is a kind of slurry shield machine hob-cutter structure partial enlarged drawing with multi-sealing structure.
In figure：1st, cutter ring；2nd, cutter hub；3rd, outer floating seal；4th, sealing support；5th, interior floating seal；6th, cutter shaft；7th, left end
Lid；8th, right end cap；9th, bearing；10th, dynamic seal；11st, O-ring seal；
Embodiment
The utility model is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of slurry shield machine with multi-sealing structure described in the utility model is used
Hobboing cutter, including the cutter hub 2 of cutter ring 1 is installed, that the cutter shaft 6 and Bearing outer installed by bearing 9 in the axis hole of cutter hub 2 are set is close
Envelope support 4, left end cap 7, right end cap 8, the sealing support 4 are arranged on by external diameter in the stepped hole at the two ends of cutter hub 2, its inner side
Offer with left and right end cap symmetrically, the conical bore for installing interior floating seal 5, its outside offers seal groove, for pacifying
O-ring seal 11 is filled, the right end cap 8 is arranged on the right-hand member of cutter shaft 6 by its endoporus, its inner side is offered and sealing support 4
Symmetrically, for install offered on the conical bore of interior floating seal 5, its outer peripheral face it is symmetrical with cutter hub 2, it is outer floating for installing
Seal groove is offered on the conical grooves of dynamic sealing 3, its outer peripheral face, for installing dynamic seal 10, the left end cap 7 passes through it
Endoporus is arranged on the left end of cutter shaft, and its inner side offers, circular cone for install interior floating seal 5 symmetrical with sealing support 4
Offer and offered on, the conical grooves for installing outer floating seal 3 symmetrical with cutter hub 2, its outer peripheral face on hole, its outer peripheral face
Seal groove, is offered with left and right end cap symmetrically, for installing outer floating for installing on dynamic seal 10, the cutter hub 2
The conical grooves of sealing 3.
By setting outer floating seal 3 in cutter hub 2 and left end cap 7, the joint of right end cap 8, outer floating seal 3 can be in cutter hub
Free floating in 2, advantageously reduces the rotation of cutter hub 2 and vibrates on sealedly influence, form the first resealing, prevent big
The impurity such as the soil of particle enter inside hobboing cutter；By setting dynamic seal between outer floating seal 3 and interior floating seal 5
10, the second resealing is formd, prevents the little particle such as muddy water impurity to enter inside hobboing cutter, makes sealing more efficient；By
Cutter hub 2 goes out to set O-ring seal 11 with 4 composition surfaces of sealing support, forms triple seal；By on sealing support 4 and a left side
End cap 7, the joint of right end cap 8 set interior floating seal 5, form the 4th resealing, finally ensure that impurity will not enter hobboing cutter
It is internal.The hobboing cutter sealing structure good sealing effect, adapts to the shield-tunneling construction under high hydraulic pressure and adverse circumstances, is conducive in Gao Shui
Press the service life for extending shield machine roller cutter under muddy water environment.
Schematically the utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing
Shown in be also the utility model patent one of embodiment, actual structure is not limited thereto.So, if this
The those of ordinary skill in field is enlightened by it, in the case where not departing from the utility model creation objective, is set without creative
The frame mode and case study on implementation similar to the technical scheme is counted out, protection domain of the present utility model is belonged to.
Claims (3)
1. a kind of slurry shield machine hobboing cutter with multi-sealing structure, it includes installing cutter hub (2), the cutter hub of cutter ring (1)
(2) sealing that the cutter shaft (6) and Bearing outer installed in axis hole by bearing (9) are set supports (4), left end cap (7), right-hand member
Cover (8), it is characterised in that：The cutter hub (2) offers symmetrical circular cone with the left end cap (7), right end cap (8) joint
It is provided with groove, the conical grooves on outer floating seal (3), the left end cap (7), right end cap (8) outer peripheral face and offers seal groove,
Dynamic seal (10) is provided with the seal groove, the sealing is supported provided with seal groove, and O is provided with the seal groove
Type sealing ring (11), the sealing support (4) offers symmetrical circular cone with the left end cap (7), right end cap (8) joint
Interior floating seal (5) is provided with groove, the conical grooves.
2. a kind of slurry shield machine hobboing cutter with multi-sealing structure according to claim 1, it is characterised in that：Institute
It can be quadrangle, pentagon or polygon to state sealing support (4) section.
3. a kind of slurry shield machine hobboing cutter with multi-sealing structure according to claim 1, it is characterised in that：Institute
It is lip-type packing to state dynamic seal (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720313953.2U CN206608180U (en) | 2017-03-29 | 2017-03-29 | A kind of slurry shield machine hobboing cutter with multi-sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720313953.2U CN206608180U (en) | 2017-03-29 | 2017-03-29 | A kind of slurry shield machine hobboing cutter with multi-sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608180U true CN206608180U (en) | 2017-11-03 |
Family
ID=60173256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720313953.2U Expired - Fee Related CN206608180U (en) | 2017-03-29 | 2017-03-29 | A kind of slurry shield machine hobboing cutter with multi-sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821505A (en) * | 2019-11-29 | 2020-02-21 | 天津立林钻头有限公司 | 21-22 inch heavy shield hobbing cutter and manufacturing method thereof |
-
2017
- 2017-03-29 CN CN201720313953.2U patent/CN206608180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821505A (en) * | 2019-11-29 | 2020-02-21 | 天津立林钻头有限公司 | 21-22 inch heavy shield hobbing cutter and manufacturing method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20180329 |