CN207795254U - Shield machine sealing ring - Google Patents
Shield machine sealing ring Download PDFInfo
- Publication number
- CN207795254U CN207795254U CN201820063034.9U CN201820063034U CN207795254U CN 207795254 U CN207795254 U CN 207795254U CN 201820063034 U CN201820063034 U CN 201820063034U CN 207795254 U CN207795254 U CN 207795254U
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- China
- Prior art keywords
- sealing
- support portion
- annular gap
- shield machine
- length
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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.)
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Abstract
Shield machine sealing ring, including columnar support portion and it is connected to support portion one end inclined sealing inwardly, the sealing is in taper barrel, angle between the sealing and the support portion is between 40 ° to 50 °, the sealing connect the annular gap for being provided on the inside of one end and weakening sealing rigidity, the rectangular in cross-section of the annular gap with support portion.Advantage is：Angle between sealing and the support portion can be such that preload piece is easier between indentation sealing portion and support portion between 40 ° to 50 °, and when making 0 shape circle just between indentation sealing portion and support portion, the pressing force between sealing and sealing surface can be increased, to improve sealing effect, and the effect of annular gap is the rigidity of Jiangdu sealing, sealing is set to be easier to deform, to make the preload stroke of preload piece be increased, to further increase the contact of sealing and sealing surface, sealing effect is improved.
Description
Technical field
The utility model is related to shield machine water-tight equipment more particularly to shield machine sealing rings.
Background technology
With shield machine carry out tunnel construction with high degree of automation, save manpower, speed of application fast, a cavitation, no
Climate can control surface subsidence, reduces the influence to above ground structure and not influence water when excavating under water when influencing, excavating
The features such as face traffic, in the case where tunnel line is longer, buried depth is larger, with shield machine construction more economical rationality.
It can be provided with lippacking in the central rotary joint of shield machine, to prevent shield machine from carrying out Tunnel construction
When, silt enters in body, needs to be inserted into using the preload piece of annular when lippacking to be installed in central rotary joint
In the lip of lippacking, to increase the contact between sealing lip and sealing surface, to effectively prevent silt to enter
In body, but led since existing lippacking deformability is not strong when being inserted into existing lippacking using preload piece
It causes the early warning stroke of preload piece small, causes to seal surface contact pressure deficiency, lead to existing lippacking sealing performance not
It is good.
Utility model content
The purpose of this utility model is to provide shield machine sealing ring, its advantage is that having excellent sealing effect, passes through
Change structure, ensures that preload piece has the enough displacement load for pre-tightening stroke and applying bigger, improve the contact of sealing surface, from
And obtain excellent sealing effect.
The above-mentioned technical purpose of the utility model technical scheme is that：
Shield machine sealing ring, including columnar support portion and it is connected to the inclined sealing inwardly of support portion one end
Portion, the sealing are in taper barrel, and the angle between the sealing and the support portion is described close between 40 ° to 50 °
Envelope portion connect the annular gap for being provided on the inside of one end and weakening sealing rigidity with support portion, and the section of the annular gap is in square
The long side of shape, the annular gap is parallel with the length direction of support portion.
Through the above technical solutions, the angle between sealing and the support portion can make preload between 40 ° to 50 °
Part is easier between indentation sealing portion and support portion, and being arranged such can also be such that sealing is directly turned round with shield machine center
Sealing surface contact on section so that 0 shape circle just between indentation sealing portion and support portion when, you can increase sealing and sealing surface
Between pressing force, to improve sealing effect, and the effect of annular gap is the rigidity of Jiangdu sealing, makes sealing more
It is easily deformed, to make the preload stroke of preload piece be increased, to further increase contact pressure of the sealing with sealing surface
Power improves sealing effect.
The utility model is further arranged to：The length of the support portion and the length ratio of sealing are 1.35-1.45.
Through the above technical solutions, being more suitable for the mounting groove of sealing ring in the rotary joint of shield machine center, make sealing ring and peace
Tankage more matches.
The utility model is further arranged to：The ratio between the length of the annular gap and the width of annular gap are 2.4-
2.6, the length of the annular gap and the length ratio of sealing are 2.9-3.1.
Through the above technical solutions, annular gap can be opened up reasonably, the setting due to annular gap is avoided to cause close
The intensity in envelope portion is too low, and sealing is made to be broken.
The utility model is further arranged to：The width of support portion and the overall thickness and the annular gap of sealing junction
Degree with the ratio between be 6.9-7.1.
Through the above technical solutions, being further limited to annular gap, the setting due to annular gap is avoided to cause close
The intensity in envelope portion is too low, and sealing is made to be broken.
The utility model is further arranged to：It is provided with fillet at the sealing and support portion angle.
Through the above technical solutions, the setting of fillet can to avoid stress concentration at sealing and support portion angle,
Cause the junction of sealing and support portion crack occur, influences product quality and sealing effect.
The utility model is further arranged to：The thickness of the sealing is from sealing and support portion junction to away from branch
Support part one end is gradually reduced.
Through the above technical solutions, can ensure sealing integral strength, the rigidity of sealing is reduced, is made close
Envelope portion is easier to deform, to improve the preload stroke of preload piece, to further increase the contact of sealing and sealing surface,
Improve sealing effect.
In conclusion the utility model has the advantages that：
One, the angle between sealing and the support portion can make between 40 ° to 50 ° preload piece be easier to be pressed into it is close
Between envelope portion and support portion, and being arranged such can also be such that sealing is directly connect with the sealing surface on the rotary joint of shield machine center
Touch so that 0 shape circle just between indentation sealing portion and support portion when, you can increase the pressing force between sealing and sealing surface,
To improve sealing effect, and the effect of annular gap is the rigidity of Jiangdu sealing, and sealing is made to be easier to deform, to
So that the preload stroke of preload piece is increased, to further increase the contact of sealing and sealing surface, improves sealing effect
Fruit；
Two, annular gap can be reasonably opened up, the setting due to annular gap is avoided to cause the intensity of sealing too low,
Sealing is set to be broken；
Three, it can ensure sealing integral strength, to reducing the rigidity of sealing, sealing made to be easier to become
Shape, to further increase the contact of sealing and sealing surface, improves sealing effect to improve the preload stroke of preload piece
Fruit.
Description of the drawings
Fig. 1 is to embody the sectional view that the structure of the utility model is done.
In figure, 1, support portion；2, sealing；3, annular gap；A, the length of support portion；B, the length of sealing；C, it props up
The overall thickness of support part and sealing junction.
Specific implementation mode
Embodiment：
Shield machine sealing ring, referring to Fig.1 shown in, including columnar support portion 1 and to be connected to 1 one end of support portion inside
The inclined sealing 2 in taper barrel in side, support portion 1 and 2 integrated injection molding of sealing, between sealing 2 and support portion 1
Angle between 40 ° to 50 °, the ratio between the length A of support portion and the length 2 of sealing are between 1.35-1.45.In sealing
2 with 1 angle of support portion at be provided with fillet, prevent stress concentration.The thickness of above-mentioned sealing 2 is by sealing 2 and branch
1 junction of support part is gradually reduced to away from 1 one end of support portion.
Shown in referring to Fig.1, the annular for weakening 2 rigidity of sealing is provided on the inside of one end that sealing 2 is connect with support portion 1
The long side of gap 3, the rectangular in cross-section of annular gap 3, annular gap 3 is parallel with the directions length A of support portion, annular gap 3
Length and annular gap 3 the ratio between width between 2.4-2.6, the length 2 of sealing and the length ratio of annular gap 3 exist
Between 2.9-3.1, the width of the overall thickness C of support portion and sealing junction and annular gap 3 with the ratio between 6.9-7.1 it
Between.
The course of work：After sealing ring is installed on the rotary joint of shield machine center, as preload piece is gradually inserted sealing 2
Between support portion 1, miniature deformation occurs for sealing 2, deeper to make preload piece be inserted into, to improve sealing 2 and shield
Pressing force in the rotary joint of structure machine center between sealing surface, to improve sealing effect.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (6)
1. shield machine sealing ring, including columnar support portion (1) and to be connected to support portion (1) one end inclined close inwardly
Envelope portion (2), the sealing (2) they are in taper barrel, it is characterized in that：Folder between the sealing (2) and the support portion (1)
Between 40 ° to 50 °, the sealing (2), which connect to be provided on the inside of one end with support portion (1), weakens sealing (2) rigidity at angle
Annular gap (3), the rectangular in cross-section of the annular gap (3), the length of the long side and support portion of the annular gap (3)
(A) direction is parallel.
2. shield machine sealing ring according to claim 1, it is characterized in that：The length (A) and sealing of the support portion
The ratio between length (B) be 1.35-1.45.
3. shield machine sealing ring according to claim 2, it is characterized in that：The length of the annular gap (3) and annular
The ratio between width of gap (3) is 2.4-2.6, and the length (B) of the sealing is 2.9- with the length ratio of annular gap (3)
3.1。
4. shield machine sealing ring according to claim 3, it is characterized in that：The overall thickness of support portion and sealing junction
(C) with the width of the annular gap (3) with the ratio between be 6.9-7.1.
5. shield machine sealing ring according to claim 1, it is characterized in that：The sealing (2) and support portion (1) institute at
Angle is provided with fillet.
6. shield machine sealing ring according to claim 1, it is characterized in that：The thickness of the sealing (2) is by sealing
(2) it is gradually reduced to away from support portion (1) one end with support portion (1) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820063034.9U CN207795254U (en) | 2018-01-15 | 2018-01-15 | Shield machine sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820063034.9U CN207795254U (en) | 2018-01-15 | 2018-01-15 | Shield machine sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795254U true CN207795254U (en) | 2018-08-31 |
Family
ID=63272029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820063034.9U Active CN207795254U (en) | 2018-01-15 | 2018-01-15 | Shield machine sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109048655A (en) * | 2017-06-08 | 2018-12-21 | 株式会社迪思科 | Chuck table |
-
2018
- 2018-01-15 CN CN201820063034.9U patent/CN207795254U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109048655A (en) * | 2017-06-08 | 2018-12-21 | 株式会社迪思科 | Chuck table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |