CN108916387A - For dynamic sealing means of the rotating shaft in uneven radial deformation state - Google Patents
For dynamic sealing means of the rotating shaft in uneven radial deformation state Download PDFInfo
- Publication number
- CN108916387A CN108916387A CN201811088704.3A CN201811088704A CN108916387A CN 108916387 A CN108916387 A CN 108916387A CN 201811088704 A CN201811088704 A CN 201811088704A CN 108916387 A CN108916387 A CN 108916387A
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- Prior art keywords
- dynamic sealing
- dynamic
- seal
- rotating shaft
- block
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- 238000007789 sealing Methods 0.000 title claims abstract description 164
- 230000003068 static effect Effects 0.000 claims abstract description 25
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 229910002804 graphite Inorganic materials 0.000 claims description 15
- 239000010439 graphite Substances 0.000 claims description 15
- 238000009304 pastoral farming Methods 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
Abstract
The invention discloses a kind of dynamic sealing means for rotating shaft in uneven radial deformation state, including：Annular base plate, the first seal assembly and the second dynamic sealing assembly；Wherein, the centre bore of annular base plate is that rotating shaft passes through through-hole；First seal assembly is located in annular base plate, first seal assembly is equipped with the multiple dynamic seals being arranged around the centre bore of annular base plate and multiple static seals, towards centre bore, energy gluing, sealing lives the rotating shaft surface in centre bore for sealed end and the preceding sealed end of each static seal before the elasticity of each dynamic seal；Second seal assembly is located in annular base plate, and the second seal assembly is equipped with the multiple dynamic seals being arranged around the centre bore of annular base plate, and for sealed end towards centre bore, energy elastic fit seals up the rotating shaft surface in centre bore before the elasticity of each dynamic seal.
Description
Technical field
It is the present invention relates to sealing field, in particular to a kind of dynamic in uneven radial deformation state for rotating shaft
State sealing device.
Background technique
When rotary kiln device is run, the kiln hood at both ends, kiln tail are static, and intermediate kiln body does rotary motion, in rotary kiln
Material and flue gas are moved from kiln body to kiln tail, to prevent the smoke contacts in the air and rotary kiln outside rotary kiln, are needed in kiln
Sealing device is arranged at body and kiln hood, kiln tail.Current seal of rotary kiln device mainly has contactless labyrinth seal, contact
Scale sealing of formula etc..Since ignition temperature is up to 800 DEG C or so in rotary kiln, along in kiln material distribution it is random
Property, cause rotary kiln to be experienced hot uneven, it may appear that the radial section of kiln body becomes elliptical shape by original circle, thus
Increase the sealing difficulty of rotary kiln, existing sealing device effect is undesirable.
Summary of the invention
Based on the problems of prior art, the object of the present invention is to provide one kind for rotating shaft uneven radial
Dynamic sealing means when deformation state can be sealed rotating shaft in uneven radial deformation state, reach preferable
Sealing effect.
The purpose of the present invention is what is be achieved through the following technical solutions：
Embodiment of the present invention provides a kind of dynamic sealing means for rotating shaft in uneven radial deformation state,
Including：
Annular base plate, the first seal assembly and the second dynamic sealing assembly；Wherein,
The centre bore of the annular base plate is that rotating shaft passes through through-hole；
First seal assembly is located in the annular base plate, and first seal assembly is equipped with around the annular base
Multiple dynamic seals of the centre bore setting of plate and multiple static seals, sealed end and each static seal before the elasticity of each dynamic seal
For the preceding sealed end of part towards the centre bore, energy gluing, sealing lives the rotating shaft surface in the centre bore；
Second seal assembly is located in the annular base plate, and second seal assembly is equipped with around the annular base
Multiple dynamic seals of the centre bore setting of plate, sealed end, can elasticity towards the centre bore before the elasticity of each dynamic seal
Gluing, sealing lives the rotating shaft surface in the centre bore.
As seen from the above technical solution provided by the invention, the rotating shaft provided in an embodiment of the present invention that is used for is in unevenness
Dynamic sealing means when even radial deformation state, its advantages are：
By the way that the first seal assembly and the second dynamic sealing assembly are respectively set in annular base plate, pass through the first seal assembly
Multiple dynamic seals and multiple dynamic seals of multiple static seals and the second dynamic sealing assembly can be bonded rotating shaft table
Face, to rotating shaft face seal, due to the sealing for being multiple dynamic seals and multiple static seals collectively constitute, conformal performance is more
It is good, it can guarantee the sealing effect being still bonded always when rotating shaft form changes.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of dynamic sealing means provided in an embodiment of the present invention；
Fig. 2 is the schematic front view of dynamic sealing means provided in an embodiment of the present invention；
Fig. 3 is the schematic cross-sectional view at the L-L in Fig. 2；
Fig. 4 is the partial schematic sectional view of dynamic sealing means provided in an embodiment of the present invention；
Fig. 5 is the partial schematic diagram of the first dynamic sealing assembly of dynamic sealing means provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram of dynamic sealing block provided in an embodiment of the present invention；
In figure：The first sealed box body of 1-；2- the first dynamic sealing block；3- the second dynamic sealing block；The second dynamic sealing of 4- adjusts spiral shell
Bolt；5- the second dynamic sealing spring；6- fixing bolt；7- axial compression spring；8- axial compression block；9- rotary kiln body；10-
Annular base plate；The second sealed box body of 11-；12- axial compression plate；The first dynamic sealing of 13- adjusts bolt；14- the first static seal block；
15- the first dynamic sealing spring.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.The content being not described in detail in the embodiment of the present invention belongs to this field professional technique
The prior art well known to personnel.
As shown in Figures 1 to 4, the embodiment of the present invention provides a kind of dynamic in uneven radial deformation state for rotating shaft
State sealing device, including：
Annular base plate, the first seal assembly and the second dynamic sealing assembly；Wherein,
The centre bore of the annular base plate is that rotating shaft passes through through-hole；
First seal assembly is located in the annular base plate, and first seal assembly is equipped with around the annular base
Multiple dynamic seals of the centre bore setting of plate and multiple static seals, sealed end and each static seal before the elasticity of each dynamic seal
For the preceding sealed end of part towards the centre bore, energy gluing, sealing lives the rotating shaft surface in the centre bore；
Second seal assembly is located in the annular base plate, and second seal assembly is equipped with around the annular base
Multiple dynamic seals of the centre bore setting of plate, sealed end, can elasticity towards the centre bore before the elasticity of each dynamic seal
Gluing, sealing lives the rotating shaft surface in the centre bore.
In above-mentioned dynamic sealing means, multiple dynamic seals of the first seal assembly and multiple static seals are distributed in a ring
It is located at around the centre bore of the annular base plate, is arranged in such a way that a dynamic seal is arranged alternately with a static seal.
In above-mentioned dynamic sealing means, each dynamic seal of the first seal assembly includes：
First sealed box body, fixing bolt, the first dynamic sealing block, the first dynamic sealing spring and the first dynamic sealing adjust spiral shell
Bolt；Wherein,
First sealed box body is located in the annular base plate by fixing bolt fixation, first sealed box body
Centre bore of the front opening towards the annular base plate；
The first dynamic sealing block is actively installed in first sealed box body, close before the elasticity of the first dynamic sealing block
Sealing end is the concave curved surface with the rotating shaft surface matching；
The first dynamic sealing spring is arranged in the rear end of the first dynamic sealing block in first sealed box body；
First dynamic sealing adjusts bolt and is located at first sealed box body rear end, which adjusts bolt
Front end, which is protruded into first sealed box body, withstands the first dynamic sealing spring, can be adjusted by the first dynamic sealing spring
The intracorporal first dynamic sealing block elastic force in the radial direction of first seal box.
In above-mentioned dynamic sealing means, the first dynamic sealing block has the graphite grazing block of concave curved surface, energy using front end
The preferably outer surface of fitting rotating shaft.
In above-mentioned dynamic sealing means, the second seal assembly is in the top of first seal assembly, with described first
Seal assembly forms double-layer sealing structure, forms three-dimensional sealing surface in this way, can reach complementary sealing, guarantees better seal effect
Fruit.Preferably, each dynamic seal of the second seal assembly may be provided in above the static seal of the first seal assembly.
In above-mentioned dynamic sealing means, each dynamic seal of the second seal assembly includes：
Second sealed box body, fixing bolt, the second dynamic sealing block, axial compression spring, axial compression block, the second dynamic sealing
Spring and the second dynamic sealing adjust bolt；Wherein,
Second sealed box body is located in the annular base plate by fixing bolt, the front end of second sealed box body
The centre bore being open towards the annular base plate；
The second dynamic sealing block is actively installed in second sealed box body, close before the elasticity of the second dynamic sealing block
Sealing end is the concave curved surface with the rotating shaft surface matching；
Second sealed box body is equipped with the axial compression spring and axial compression block, can be along the axis of the rotating shaft
To the compression intracorporal second dynamic sealing block of the second seal box；
The second dynamic sealing spring is arranged in the rear end of the second dynamic sealing block in second sealed box body；
Second dynamic sealing adjusts bolt and is located at first sealed box body rear end, which adjusts bolt
Front end, which is protruded into second sealed box body, withstands the first dynamic sealing spring, can be adjusted by the second dynamic sealing spring
The intracorporal second dynamic sealing block elastic force in the radial direction of second seal box.
Second seal assembly of this structure, the convenient elastic force in radiai adjustment the second dynamic sealing block, preferably guarantee pair
The gluing, sealing on rotating shaft surface, and conveniently adjusting the second dynamic sealing block in the axial direction is preferably adjacent to the first of first layer
Dynamic sealing block, reduces the gap in the two axial direction, preferably realizes complementary sealing.
In above-mentioned dynamic sealing means, the second sealing block has the graphite grazing block of concave curved surface using front end, can be more
The outer surface of good fitting rotating shaft.
In above-mentioned dynamic sealing means, multiple dynamic seals of the first seal assembly and multiple static seals and second move it is close
The total quantity of multiple dynamic seals of sealing assembly is no less than 150.By the way that a fairly large number of dynamic seal and static seal is arranged,
Better conformal performance can be reached, it is ensured that be sealed to the rotating shaft surface of change in shape.
As shown in figure 5, in above-mentioned dynamic sealing means, each static seal of the first seal assembly includes：
Fixing seal box, and graphite grazing block of the front end with concave curved surface being located in the fixing seal box.By
There is in static seal block using front end the graphite grazing block of concave curved surface, can preferably replace rotating shaft surface in this way.
Preferably, fixing seal box and the first sealed box body of the first seal assembly of the first seal assembly are connected as one
Change structure.
Rotating shaft in above-mentioned dynamic sealing means is also possible to the cylindrical surface of rotary kiln body.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
The present embodiment provides a kind of dynamic sealing means, radially uniform when can do rotary motion to revolving body to become larger, become smaller
(being still circular cross-section) carry out dynamic sealing, solve elliptic cross-section revolving body deform in rotary motion caused by sealing imitate
The bad problem of fruit can be applied to the radial section ovalizing deflection sealing of rotary kiln body, bad close caused by solving because of deformation
Envelope or the bad problem of sealing effect.The dynamic sealing means are made of two layers of seal assembly, wherein the first seal assembly includes：
Multiple first dynamic sealing blocks 2 (graphite grazing block being used, referring to Fig. 6) and multiple static seal blocks 14 (using graphite grazing block)；The
Two seal assemblies include：There are the first dynamic sealing spring in multiple second dynamic sealing blocks 3, the tail portion of the first, second dynamic sealing block respectively
With the effect of the second dynamic sealing spring 15,5, guarantee the first, second dynamic sealing block and (the rotary kiln body 9 herein of rotary kiln body 9
As rotating shaft, the present embodiment using rotary kiln body 9 as rotating shaft for be illustrated) cylindrical surface fitting；Second sealing
Second dynamic sealing block of component 3 plays the role of holddown spring 7 in the axial direction, guarantees that two layers of dynamic sealing block fits closely.First is dynamic
Sealing block can slide on the guide seal cover of annular base plate 10；Second dynamic sealing block 3 can be in the guiding of the second sealed box body 11
It is slided above sealing surface and the first dynamic sealing block 2.It should be noted that：Since rotary kiln body 9 is relatively large in diameter, first move it is close
Seal block, the second dynamic sealing block total quantity generally at 150 pieces or more, such dynamic sealing block use graphite grazing block when, monolithic
Graphite grazing block size is smaller, not easily broken, and in practice the indent radian of the graphite grazing block front end of monolithic it is very big (referring to
Fig. 6), close to straight line, it is understood that close to a point, and due to graphite softness, graphite grazing a fairly large number of in this way
Block can preferably can be bonded with rotary kiln body 9, and have preferable shape compensation characteristic, can reach better seal effect
Fruit, the negligible amounts for the dynamic sealing block illustrated in each figure, purpose be intended merely to can clearer signal dynamic sealing block position and
Working principle.
When 9 uneven heating of rotary kiln body is even, the circle in kiln body section becomes oval, at this point, being moved using two layers close
Envelope block radially slides, and guarantees that dynamic sealing block is fitted closely with rotary kiln body, to realize the effect of sealing.
Specifically, rotary kiln body 9 becomes elliptical cylinder-shape from cylinder at this time, at this time elliptical cylinder-shape when rotary kiln heats up
Using the centre of gyration before as shaft rotary motion, when a high point goes to the first dynamic sealing block 2 of first layer, the first dynamic sealing
Block 2 can move out, at this time due to there is the subsequent first dynamic sealing spring 15 of the first dynamic sealing block 2 to act on, so that first layer is dynamic
Sealing block 2 is still fitted closely with the holding of rotary kiln body 9；Similarly, when low spot moves to the second dynamic sealing 3 position of block, by
In there is the subsequent second dynamic sealing spring 5 of the second dynamic sealing block 3 to act on so that the second dynamic sealing block 3 still with rotary kiln body 9
Holding fits closely；There is axial compression spring 7 above the second dynamic sealing block 3 to act on simultaneously so that the second dynamic sealing block 3 to
First dynamic sealing block, 2 direction fits closely, and has adjusting bolt (i.e. first, second behind the first, second dynamic sealing spring
Dynamic sealing adjusts bolt 13,4) adjusts the elastic force of two springs and the first, second dynamic sealing block, to play good entirety
The effect of sealing.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (10)
1. a kind of dynamic sealing means for rotating shaft in uneven radial deformation state, which is characterized in that including：
Annular base plate, the first seal assembly and the second dynamic sealing assembly；Wherein,
The centre bore of the annular base plate is that rotating shaft passes through through-hole；
First seal assembly is located in the annular base plate, and first seal assembly is equipped with around the annular base plate
Multiple dynamic seals of centre bore setting and multiple static seals, sealed end and each static seal before the elasticity of each dynamic seal
For preceding sealed end towards the centre bore, energy gluing, sealing lives the rotating shaft surface in the centre bore；
Second seal assembly is located in the annular base plate, and second seal assembly is equipped with around the annular base plate
Multiple dynamic seals of centre bore setting, sealed end, can elastic fit towards the centre bore before the elasticity of each dynamic seal
Seal up the rotating shaft surface in the centre bore.
2. according to claim 1 be used for dynamic sealing means of the rotating shaft in uneven radial deformation state, spy
Sign is that multiple dynamic seals of first seal assembly and multiple static seals are distributed are located at the annular base plate in a ring
Centre bore around, arranged in such a way that a dynamic seal is arranged alternately with a static seal.
3. according to claim 1 or 2 be used for dynamic sealing means of the rotating shaft in uneven radial deformation state,
It is characterized in that, each dynamic seal of first seal assembly includes：
First sealed box body, fixing bolt, the first dynamic sealing block, the first dynamic sealing spring and the first dynamic sealing adjust bolt；Its
In,
First sealed box body is located in the annular base plate by fixing bolt fixation, the front end of first sealed box body
The centre bore being open towards the annular base plate；
The first dynamic sealing block is actively installed in first sealed box body, sealed end before the elasticity of the first dynamic sealing block
For the concave curved surface with the rotating shaft surface matching；
The first dynamic sealing spring is arranged in the rear end of the first dynamic sealing block in first sealed box body；
First dynamic sealing adjusts bolt and is located at first sealed box body rear end, which adjusts the front end of bolt
It protrudes into first sealed box body and withstands the first dynamic sealing spring, it can be by described in the first dynamic sealing spring adjusting
The intracorporal first dynamic sealing block elastic force in the radial direction of first seal box.
4. according to claim 3 be used for dynamic sealing means of the rotating shaft in uneven radial deformation state, spy
Sign is that the first dynamic sealing block has the graphite grazing block of concave curved surface using front end.
5. according to claim 1 or 2 be used for dynamic sealing means of the rotating shaft in uneven radial deformation state,
It is characterized in that, second seal assembly is in the top of first seal assembly, is formed with first seal assembly double
Layer sealing structure.
6. according to claim 1 or 2 be used for dynamic sealing means of the rotating shaft in uneven radial deformation state,
It is characterized in that, each dynamic seal of second seal assembly includes：
Second sealed box body, fixing bolt, the second dynamic sealing block, axial compression spring, axial compression block, the second dynamic sealing spring
Bolt is adjusted with the second dynamic sealing；Wherein,
Second sealed box body is located in the annular base plate by fixing bolt, the front opening of second sealed box body
Towards the centre bore of the annular base plate；
The second dynamic sealing block is actively installed in second sealed box body, sealed end before the elasticity of the second dynamic sealing block
For the concave curved surface with the rotating shaft surface matching；
Second sealed box body is equipped with the axial compression spring and axial compression block, can be along the axial direction pressure of the rotating shaft
The tight intracorporal second dynamic sealing block of second seal box；
The second dynamic sealing spring is arranged in the rear end of the second dynamic sealing block in second sealed box body；
Second dynamic sealing adjusts bolt and is located at first sealed box body rear end, which adjusts the front end of bolt
It protrudes into second sealed box body and withstands the first dynamic sealing spring, it can be by described in the second dynamic sealing spring adjusting
The intracorporal second dynamic sealing block elastic force in the radial direction of second seal box.
7. according to claim 6 be used for dynamic sealing means of the rotating shaft in uneven radial deformation state, spy
Sign is that second sealing block has the graphite grazing block of concave curved surface using front end.
8. according to claim 1 or 2 be used for dynamic sealing means of the rotating shaft in uneven radial deformation state,
It is characterized in that, multiple dynamic seals of first seal assembly and multiple static seals and the multiple of the second dynamic sealing assembly move
The total quantity of sealing element is no less than 150.
9. according to claim 1 or 2 be used for dynamic sealing means of the rotating shaft in uneven radial deformation state,
It is characterized in that, each static seal of first seal assembly includes：
Fixing seal box, and graphite grazing block of the front end with concave curved surface being located in the fixing seal box.
10. according to claim 9 be used for dynamic sealing means of the rotating shaft in uneven radial deformation state, spy
Sign is that the static seal block has the graphite grazing block of concave curved surface using front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088704.3A CN108916387B (en) | 2018-09-18 | Dynamic sealing device for a rotary shaft in a non-uniform radial deformation state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088704.3A CN108916387B (en) | 2018-09-18 | Dynamic sealing device for a rotary shaft in a non-uniform radial deformation state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108916387A true CN108916387A (en) | 2018-11-30 |
| CN108916387B CN108916387B (en) | 2024-04-26 |
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| CN106090232A (en) * | 2016-07-29 | 2016-11-09 | 湖南万容科技股份有限公司 | A kind of rotary kiln inner core rotary seal |
| CN206449200U (en) * | 2017-01-12 | 2017-08-29 | 河南东和环保科技股份有限公司 | A kind of wide arc gap huge revolving mechanism dynamic sealing means |
| CN107604969A (en) * | 2017-11-03 | 2018-01-19 | 三重机有限公司 | Center-rotary joint and hydraulic crawler excavator |
| CN107741151A (en) * | 2017-11-28 | 2018-02-27 | 河南昱千鑫金属科技有限公司 | A kind of totally-enclosed metallurgical rotary kiln |
| CN209370466U (en) * | 2018-09-18 | 2019-09-10 | 启迪桑德环境资源股份有限公司 | For dynamic sealing means of the rotating shaft in uneven radial deformation state |
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