CN206958261U - Mechanical seal - Google Patents
Mechanical seal Download PDFInfo
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- CN206958261U CN206958261U CN201720534961.XU CN201720534961U CN206958261U CN 206958261 U CN206958261 U CN 206958261U CN 201720534961 U CN201720534961 U CN 201720534961U CN 206958261 U CN206958261 U CN 206958261U
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- section
- stretch section
- seal
- mechanical seal
- rotating ring
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Abstract
The utility model discloses a kind of mechanical seal, solves mechanical seal in the prior art when circular runout occurs for axle, can not ensure the sealing of mechanical seal.Its drip irrigation device is a kind of mechanical seal, including rotating ring and stationary ring, the one end of the rotating ring away from stationary ring is provided with the resilient seal pipe that rotating ring is pressed to stationary ring, the resilient seal pipe includes being used for the construction section for installing rotating ring, the stretch section of stress deformation and outwardly convex and the seal section being interference fitted with axle can be passed through, the stretch section includes the first stretch section being connected with construction section and the second stretch section being connected with seal section, first stretch section is the cambered surface to cave inward, the elastic force load maintainer that the seal section is provided with annular boss in one end away from stretch section and is arranged between annular boss and stretch section and compresses stretch section, the mechanical seal keeps good sealing when circular runout occurs for axle.
Description
Technical field
A kind of seal is the utility model is related to, more particularly to a kind of mechanical seal.
Background technology
Mechanical seal (mechanical seal) refers to by least one pair of perpendicular to the end face of rotation axis in Fluid pressure
With compensation mechanism elastic force（Or magnetic force）In the presence of and the cooperation of auxiliary seal under keep be bonded and formed with respect to slip
The device for preventing fluid from leaking.
Authorization Notice No. is that CN202867170U utility model discloses a kind of mechanical seal, is mainly included quiet
Ring, and the stationary ring pad of stationary ring projection both sides is arranged on, the right side of stationary ring sets rotating ring, is set in the groove of described rotating ring
Dynamic seal ring, described rotating ring right side set rotating seat, and spring and spring pad are arranged in the groove of rotating seat, and support block is set
On the right side of dynamic seal ring.
But rotating ring is only pressed on stationary ring by above-mentioned mechanical seal by spring, when the axle for being provided with above-mentioned mechanical seal
During generation circular runout, the sealing effectiveness of above-mentioned mechanical seal can not be ensured.
Utility model content
The purpose of this utility model is to provide a kind of mechanical seal, and the mechanical seal is kept when circular runout occurs for axle
Good sealing.
To solve the above problems, a kind of mechanical seal of the utility model offer, including rotating ring and stationary ring, the rotating ring are remote
One end of stationary ring is provided with the resilient seal pipe that rotating ring is pressed to stationary ring, and the resilient seal pipe includes being used for the peace for installing rotating ring
Fill section, can be by the stretch section of stress deformation and outwardly convex and the seal section being interference fitted with axle, the stretch section bag
The first stretch section being connected with construction section and the second stretch section being connected with seal section are included, first stretch section is to concave
Sunken cambered surface, the seal section are provided with annular boss in one end away from stretch section and are arranged on annular boss and stretch section
Between and by stretch section compress elastic force load maintainer.
By using above-mentioned technical proposal, when mechanical seal is installed on axle, on the seal section and axle of resilient seal pipe
Position limiting structure offset, elastic force load maintainer compresses the stretch section of resilient seal pipe, and by stretch section by construction section with
And the rotating ring being installed on construction section presses to stationary ring, the good sealing effectiveness of mechanical seal ensure that.Because seal section and axle
To be interference fitted, and stretch section can deform upon in stress, so when axle occurs radially or axially to beat, seal section
Axle can be followed to move together, ensure that the sealing of mechanical seal.First stretch section is the cambered surface to cave inward, simultaneously
First stretch section is one section of stretch section away from seal section, and this structure and position ensure that the first stretch section can be preferably
Deform upon, ensure that axle occur radially or axially beat when, the first stretch section can deform upon ensure seal section with
Good sealing property between axle.
As further improvement of the utility model, the rotating ring includes the first annulus that end face and stationary ring be affixed and straight
Footpath is more than the second annulus of the first annulus, and the construction section is provided with the mounting hole for rotating ring installation, the depth of the mounting hole
Not less than the height of the second annulus, the construction section and the second annulus are interference fitted.
By using above-mentioned technical proposal, said structure ensure that the connectivity robustness between rotating ring and resilient seal pipe,
It ensure that rotating ring can follow resilient seal pipe together to rotate.
As further improvement of the utility model, the elastic mechanism elastic force load maintainer includes and the second stretch section phase
The first cover plate and annular boss end face the second cover plate to offset supported and the pressure being arranged between the first cover plate and the second cover plate
Contracting spring, one end of first cover plate towards the second cover plate are provided with the first flange, be provided with the inside of second cover plate with
The second flange that seal section is affixed.
By using above-mentioned technical proposal, spring loaded mechanism can ensure to give what stretch section one compressed stretch section
Pressure, while the spring loaded mechanism is simple in construction, it is easy for installation.
As further improvement of the utility model, the mechanical seal also includes being set in the gold on the outside of resilient seal pipe
Belong to protective case, the metal coating is enclosed on the edge away from rotating ring and is provided with some breach, and the outer edge of second cover plate is set
It is equipped with the 3rd flange being caught in breach.
By using which above-mentioned technical proposal, the setting of metal protection protector reduces extraneous factor to resilient seal pipe
Damage, while after the 3rd flange of the second cover plate and the breach of metal protection protector are coordinated, can be to the week of metal protection protector
It is spacing to carrying out.
As further improvement of the utility model, the breach is being provided at both ends with card close to metal protection protector edge
Block, the 3rd flange are the T-shaped flange that can be caught in breach.
By using above-mentioned technical proposal, the setting of fixture block and the 3rd flange are T-shaped flange in breach, can pass through this
Kind sets the axial direction progress to metal protection protector spacing.
As further improvement of the utility model, the side wall of the metal protection protector is provided with the pressure towards stretch section
Piece.
By using above-mentioned technical proposal, the setting of tabletting can strengthen the axial limiting of metal protection protector.
As further improvement of the utility model, the material of the rotating ring and stationary ring is carborundum.
By using above-mentioned technical proposal, the material of rotating ring and stationary ring is carborundum, carborundum high temperature resistant, corrosion-resistant, strong
Degree is big, heat conductivility is good, wear-resisting, it is possible to increase the service life of rotating ring and stationary ring.
As further improvement of the utility model, the material of the resilient seal pipe is fluorubber.
By using above-mentioned technical proposal, fluorubber have excellent heat-resisting heat, inoxidizability, oil resistivity, corrosion resistance,
Mechanical performance, make mechanical seal that all there is good sealing property in various working environments, while improve mechanical seal
Service life.
In summary, the utility model has the advantages that：
1st, elastic section is set in resilient seal pipe, wherein elastic force section includes the first elastic force section of easily deformation, ensures
When axle occurs radially or axially to beat, the first stretch section can deform upon ensure it is good close between seal section and axle
Feng Xing；
2nd, metal protection protector reduces damage of the extraneous factor to resilient seal pipe；
3rd, the breach and the 3rd flange of the second cover plate that metal coating is put are coordinated, metal coating puts setting for tabletting
Put, the installation for strengthening metal protection protector is strong；
4th, the material of resilient seal pipe is fluorubber, and the material of rotating ring and stationary ring is carborundum, and above-mentioned setting is by setting
Excellent material is put, adds the service life of mechanical seal.
Brief description of the drawings
Fig. 1 is mechanical seal structure schematic diagram；
Fig. 2 is mechanical seal axial direction diagrammatic cross-section；
Fig. 3 is the enlarged drawing at A in Fig. 2；
Fig. 4 is enlarged drawing at B in Fig. 2.
In figure：1st, rotating ring；11st, the first annulus；12nd, the second annulus；2nd, stationary ring；21st, the 3rd round platform；22nd, the 4th round platform；
23rd, sealing ring；3rd, elastic packing pipe；31st, construction section；311st, mounting hole；32nd, stretch section；321st, the first stretch section；322nd, second
Stretch section；33rd, seal section；331st, annular boss；34th, fixes sleeve；341st, fixed sidewall；342nd, fixed bottom plate；35th, the first lid
Plate；351st, the first flange；36th, the second cover plate；361st, the second flange；362nd, the 3rd flange；37th, compression spring；4th, metal coating
Cover；41st, breach；42nd, fixture block；43rd, tabletting；5th, axle.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, a kind of mechanical seal, mainly include rotating ring 1, stationary ring 2, be arranged at rotating ring 1 away from stationary ring 2
One end and the metal protection protector 4 that rotating ring 1 is pressed into the resilient seal pipe 3 of stationary ring 2 and is set on the outside of resilient seal pipe 3.
In the present embodiment, the material of rotating ring 1 and stationary ring 2 is carborundum, and the material of resilient seal pipe 3 is fluorubber.
Stationary ring 2 and rotating ring 1 are hollow double step annulus, and wherein stationary ring 2 includes the 3rd annulus 21, external diameter is more than the 3rd
4th annulus 22 of annulus 21, the first annulus 11 and diameter that fourth annulus 22 of the rotating ring 1 including end face and stationary ring 2 is affixed
More than the second annulus 12 of the first annulus 11.The internal diameter of stationary ring 2 is less than the internal diameter of rotating ring 1,21 sides outside the 3rd annulus of stationary ring 2
It is provided with sealing ring 23.
As shown in Fig. 2 resilient seal pipe 3 include be used for install rotating ring 1 construction section 31, can by stress deformation and to
The stretch section 32 of outer lug and the seal section 33 being interference fitted with axle 5.
As shown in Figures 2 and 3, construction section 31 is provided with the mounting hole 311 installed for rotating ring 1 in the end face towards rotating ring 1
Interior, wherein the depth of mounting hole 311 is not less than the height of the second annulus 12, and construction section 31 is interference fitted with the second annulus 12.
Fixes sleeve 34 is provided with the outer sheath of construction section 31, wherein fixes sleeve 34 includes the affixed side being affixed with the lateral wall of construction section 31
Wall 341 and the fixation bottom plate 342 being affixed with end face of the construction section 31 away from rotating ring 1.
As shown in Fig. 2 stretch section 32 includes the first stretch section 321 being connected with construction section 31 and is connected with seal section 33
The second stretch section 322, the first stretch section 321 is the cambered surface that caves inward, and the second stretch section 322 is smooth inclined-plane.
As shown in Fig. 2 seal section 33 is provided with annular boss 331 in one end away from stretch section 32.Seal section 33 it is interior
Footpath is less than the internal diameter of construction section 31.
As shown in Figure 2 and Figure 4, seal section 33 compresses between annular boss 331 and stretch section 32 and by stretch section 32
Elastic force load maintainer.Wherein, elastic mechanism elastic force load maintainer include offseted with the second stretch section 322 the first cover plate 35, with
The second cover plate 36 that the end face of annular boss 331 offsets and the compression spring being arranged between the first cover plate 35 and the second cover plate 36
37, the first cover plate 35 is provided with towards the flange 351 of the second cover plate 36 first, the inner side of the second cover plate 36 and is provided with and the phase of seal section 33
Second flange 361 of patch.
As depicted in figs. 1 and 2, metal protection protector 4 is provided with some breach 41, the second cover plate at the edge away from rotating ring 1
36 outer edge is provided with the 3rd flange 362 that can be caught in breach 41, and which part breach 41 is close to metal protection protector 4
Edge is provided at both ends with fixture block 42, and the 3rd flange 362 is the T-shaped flange that can be caught in breach 41.In the present embodiment, metal
Circumferencial direction of the protective case 4 along metal protection protector 4 is evenly arranged with four breach 41, and the breach 41 that two of which is oppositely arranged is set
Fixture block 42 is equipped with, and the second cover plate 36 is provided with two the 3rd flange 362 that can be caught in the two breach 41.
The side wall of metal protection protector 4 is additionally provided with the tabletting 43 towards stretch section 32.
When axial direction or circular runout occur for axle 5, seal section 33 can follow axle 5 to move together, ensure that machine
The sealing of tool sealing, now, by the pulling force or pressure of seal section 33, the first stretch section 321 occurs accordingly stretch section 32
Deformation, so as to not influence the fitting of rotating ring 1 and the end face of stationary ring 2.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of mechanical seal, including rotating ring (1) and stationary ring (2), it is characterised in that：The one of the remote stationary ring (2) of the rotating ring (1)
End is provided with the resilient seal pipe (3) that rotating ring (1) is pressed to stationary ring (2), and the resilient seal pipe (3) includes being used to install rotating ring
(1) construction section (31), can be interference fitted by the stretch section (32) of stress deformation and outwardly convex and with axle (5) it is close
Seal section (33), the stretch section (32) include the first stretch section (321) for being connected with construction section (31) and with seal section (33)
The second stretch section (322) of connection, first stretch section (321) are the cambered surface to cave inward, and the seal section (33) is remote
One end from stretch section (32) is provided with annular boss (331) and is arranged between annular boss (331) and stretch section (32)
And the elastic force load maintainer for compressing stretch section (32).
2. mechanical seal according to claim 1, it is characterised in that：The rotating ring (1) is affixed including end face with stationary ring (2)
The first annulus (11) and diameter be more than the second annulus (12) of the first annulus (11), the construction section (31) is provided with for dynamic
The mounting hole (311) of ring (1) installation, the depth of the mounting hole (311) are not less than the height of the second annulus (12), the installation
Section (31) is interference fitted with the second annulus (12).
3. mechanical seal according to claim 1, it is characterised in that：The elastic force load maintainer includes and the second stretch section
(322) the second cover plate (36) and be arranged on the first lid that the first cover plate (35) to offset and annular boss (331) end face offset
Compression spring (37) between plate (35) and the second cover plate (36), one end of the first cover plate (35) second cover plate of direction (36)
The first flange (351) is provided with, the second flange being affixed with seal section (33) is provided with the inside of second cover plate (36)
(361)。
4. mechanical seal according to claim 3, it is characterised in that：The mechanical seal also includes being set in resilient seal
The metal protection protector (4) on the outside of (3) is managed, the metal protection protector (4) is provided with some breach at the edge away from rotating ring (1)
(41), the outer edge of second cover plate (36) is provided with the 3rd flange (362) being caught in breach (41).
5. mechanical seal according to claim 4, it is characterised in that：The breach (41) is close to metal protection protector (4)
Edge is provided at both ends with fixture block (42), and the 3rd flange (362) is the T-shaped flange that can be caught in breach (41).
6. the mechanical seal according to claim 4 or 5, it is characterised in that：The side wall of the metal protection protector (4) is provided with
Towards the tabletting (43) of stretch section (32).
7. mechanical seal according to claim 1, it is characterised in that：The material of the rotating ring (1) and stationary ring (2) is carbon
SiClx.
8. mechanical seal according to claim 1, it is characterised in that：The material of the resilient seal pipe (3) is fluorubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720534961.XU CN206958261U (en) | 2017-05-13 | 2017-05-13 | Mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720534961.XU CN206958261U (en) | 2017-05-13 | 2017-05-13 | Mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206958261U true CN206958261U (en) | 2018-02-02 |
Family
ID=61375967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720534961.XU Active CN206958261U (en) | 2017-05-13 | 2017-05-13 | Mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206958261U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591452A (en) * | 2018-05-10 | 2018-09-28 | 中国原子能科学研究院 | a kind of sealing device |
| CN108869553A (en) * | 2018-09-25 | 2018-11-23 | 洛阳中伟环保科技有限公司 | Integrated machine seals bearing |
| CN110725364A (en) * | 2019-10-24 | 2020-01-24 | 马鞍山楚锐科技信息咨询有限公司 | Relay water tank |
-
2017
- 2017-05-13 CN CN201720534961.XU patent/CN206958261U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591452A (en) * | 2018-05-10 | 2018-09-28 | 中国原子能科学研究院 | a kind of sealing device |
| CN108869553A (en) * | 2018-09-25 | 2018-11-23 | 洛阳中伟环保科技有限公司 | Integrated machine seals bearing |
| CN110725364A (en) * | 2019-10-24 | 2020-01-24 | 马鞍山楚锐科技信息咨询有限公司 | Relay water tank |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |