CN205350351U - Be applied to rotating machinery's axial plane mechanical seal - Google Patents
Be applied to rotating machinery's axial plane mechanical seal Download PDFInfo
- Publication number
- CN205350351U CN205350351U CN201620117933.3U CN201620117933U CN205350351U CN 205350351 U CN205350351 U CN 205350351U CN 201620117933 U CN201620117933 U CN 201620117933U CN 205350351 U CN205350351 U CN 205350351U
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- China
- Prior art keywords
- rotating machinery
- ring
- mechanical seal
- axial plane
- stationary ring
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Abstract
The utility model provides a be applied to rotating machinery's axial plane mechanical seal, axial plane mechanical seal includes quiet ring, elasticity seal and casing, wherein, quiet ring cup joints on the outer periphery of rotating machinery's main shaft, and the elasticity seal cup joints on the outer periphery of quiet ring, and in the casing was placed in to the elasticity seal, the internal surface of the outer periphery of elasticity seal, the radial tip of casing and the internal surface of two lateral walls enclosed into the sealed chamber of pressing fully, press the chamber to be used for through conveyer pipe intercommunication biasing means fully, quiet ring lie in the footpath ascending some place the casing in. According to the utility model provides a technical scheme has realized rotating machinery's shaft seal through structures comparatively simple, easy loading and unloading to velocity gradient value between the friction surface is definite value, small friction.
Description
Technical field
The present invention relates to mechanical seal field, particularly to a kind of axial plane mechanical seal being applied to rotating machinery.
Background technology
At present, end surface mechanical sealing is generally adopted with the rotating machinery of rotary part.End surface mechanical sealing is a kind of gland seal device being applied to rotating machinery, and described rotating machinery is such as the equipment such as centrifugal pump, centrifuge and compressor.In rotating machinery, owing to power transmission shaft is typically opening through inside and outside equipment, a circumferential clearance is there is between power transmission shaft and equipment, medium in equipment may be leaked out by this gap, if pressure is lower than atmospheric pressure in equipment, then air is likely in equipment to penetrate into, it is therefore necessary to have one to stop leakage or the gland seal device penetrated into.
Regrettably, the structure of end surface mechanical sealing is complicated, dismounting inconvenience.Such as centrifugal pump, it is necessary to after being dismantled by pump head, end surface mechanical sealing could be dismantled.Further, the assembly precision of end surface mechanical sealing requires height, and the velocity gradient between rubbing surface is variate, and frictional force changes along with the change of velocity gradient value.It addition, end surface mechanical sealing in use exists the unbalanced phenomenon of axial force, process more difficult during generation contingent.Therefore, it is necessary to improve for the drawbacks described above existed in prior art.
Summary of the invention
For defects such as the structure complexity overcoming end surface mechanical sealing of the prior art to exist, dismounting and assembling inconveniences, this application provides a kind of axial plane mechanical seal being applied to rotating machinery.
To achieve these goals, the invention provides a kind of axial plane mechanical seal being applied to rotating machinery, described axial plane mechanical seal includes stationary ring, elastic sealed body and housing；Wherein, described stationary ring is socketed on the outer circumference surface of the main shaft of described rotating machinery, described elastic sealed body is socketed on the outer circumference surface of described stationary ring, described elastic sealed body is placed in described housing, the outer circumference surface of described elastic sealed body, the inner surface of longitudinal end of described housing and the inner surface of two sidewalls surround the standby pressure chamber of sealing, described standby pressure chamber is for by carrying pipe connection device for exerting, and the part radially that is positioned at of described stationary ring is placed in described housing.
Further, being provided with rotating ring between described stationary ring and main shaft, described rotating ring rotates on the outer circumference surface being socketed in the main shaft of described rotating machinery and with described main shaft.
Further, the inner peripheral surface of described stationary ring is provided with at least one closing seam line, described stationary ring is for shrinking to described rotating ring when being subject to the radial pressure of described elastic sealed body so that the outer circumference surface laminating of described closing seam line and described rotating ring is formed and seals.
Further, described stationary ring includes sealing ring, and sealing ring described in multilamellar stacks together formation circulus.
Further, described sealing ring includes blade, and multiple described blades are in same circumferentially spaced about layout.
Further, described sealing ring also includes alignment pin, and described blade is provided with the installation portion for installing described alignment pin.
Further, the adjacent circumferentially-spaced diameter more than described alignment pin between two described blades.
Further, described stationary ring includes at least two layers of described sealing ring, and in the central axial direction of described stationary ring, the blade of sealing ring described in adjacent two-layer staggers setting, and the blade alignment of sealing ring described in the two-layer of interlayer is arranged.
Further, described stationary ring includes at least sealing ring described in three layers, and in the central axial direction of described stationary ring, the blade of sealing ring described in adjacent two-layer staggers setting, and the blade alignment of sealing ring described in the two-layer of interlayer is arranged.
Further, described housing includes two arch sections cooperating.
Further, said two arch section is provided with the fixture with through hole.
Further, the outer surface of at least one sidewall of described housing is provided with seal groove or sealing surface.
Application technical scheme, by sealing relatively simple, that easily assembling structure achieves rotating machinery, and the velocity gradient value between rubbing surface is definite value, and frictional force is little.Additionally, have employed the mode of socket to reduce the requirement of assembly precision, the fit structure of elastic sealed body and stationary ring etc. is also beneficial to eliminate axial force energy imbalance when using.
Accompanying drawing explanation
The Figure of description constituting the part of the application is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the axial plane mechanical seal being applied to rotating machinery according to embodiments of the present invention；
Fig. 2 is the structural representation of stationary ring according to embodiments of the present invention；
Fig. 3 is the structural representation of blade according to embodiments of the present invention；
Fig. 4 is the structural representation of rotating ring according to embodiments of the present invention；
Fig. 5 is the structural representation of elastic sealed body according to embodiments of the present invention；
Fig. 6 is the structural representation of housing according to embodiments of the present invention；And
Fig. 7 is the sectional view of the axial plane mechanical seal being applied to rotating machinery according to embodiments of the present invention.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In order to solve the defect that prior art exists, the invention provides a kind of axial plane mechanical seal being applied to rotating machinery, axial plane mechanical seal includes stationary ring 20, elastic sealed body 30 and housing 40；Wherein, stationary ring is socketed on the outer circumference surface of the main shaft of rotating machinery, elastic sealed body 30 is socketed on the outer circumference surface of stationary ring 20, elastic sealed body 30 is placed in housing 40, the outer circumference surface of elastic sealed body 30, the inner surface of longitudinal end of housing 40 and the inner surface of two sidewalls surround the standby pressure chamber of sealing, standby pressure chamber is for by carrying pipe connection device for exerting, and the part radially that is positioned at of stationary ring 20 is placed in housing 40.
According to technical scheme provided by the invention, by sealing relatively simple, that easily assembling structure achieves rotating machinery, and the velocity gradient value between rubbing surface is definite value, and frictional force is little.Additionally, have employed the mode of socket to reduce the requirement of assembly precision, the fit structure of elastic sealed body and stationary ring etc. is also beneficial to eliminate axial force energy imbalance when using.
Fig. 1 is the structural representation of the axial plane mechanical seal being applied to rotating machinery according to embodiments of the present invention, and wherein, Fig. 1 eliminates the sidewall of housing, to facilitate the display of the end face structure of stationary ring.Fig. 7 is the sectional view of the axial plane mechanical seal being applied to rotating machinery according to embodiments of the present invention.Described rotating machinery refers to the plant equipment with rotary part, for instance the equipment such as centrifugal pump, centrifuge and compressor.As illustrated in figures 1 and 7, described axial plane mechanical seal includes rotating ring 10, stationary ring 20, elastic sealed body 30 and housing 40.
Wherein, being provided with rotating ring 10 between stationary ring 20 and main shaft, rotating ring 10 is for being socketed in the outer circumference surface of the main shaft of described rotating machinery, and rotating ring 10 can rotate along with described main shaft.Stationary ring 20 is socketed on the outer circumference surface of rotating ring 10.Elastic sealed body 30 is socketed on the outer circumference surface of stationary ring 20.Elastic sealed body 30 such as can adopt rubber etc. to have elastic material and make.
As shown in Figure 7, housing 40 is socketed on the outer circumference surface of elastic sealed body 30, and, elastic sealed body 30 is placed in housing 40, the outer circumference surface of elastic sealed body 30, the inner surface of longitudinal end of housing 40 and the inner surface of two sidewalls surround the standby pressure chamber of sealing, described standby pressure chamber is for by carrying pipe connection device for exerting, and the part radially that is positioned at of stationary ring 20 is placed in housing 40.Thus, when described axial plane mechanical seal is for water pump, described device for exerting can be water pump, and described standby pressure chamber is by carrying the pump chamber of pipe connection water pump, and certainly, device for exerting can also select other equipment.Described pressure equipment is to standby pressure chamber pumped (conveying) medium, and the outer circumference surface of stationary ring is uniformly pressed by medium by elastic sealed body, it is achieved the sealing between stationary ring and rotating ring.
In said structure, rotating ring 10 is combined closely on the outer circumference surface of the main shaft of described rotating machinery, and rotating ring 10 connects described main shaft and rotates together；Corresponding, stationary ring 20, elastic sealed body 30 and housing 40 are socketed successively, and they make as a whole to remain static relative to rotating ring 10, thus forming movable sealing between the inner peripheral surface and the outer circumference surface of rotating ring 10 of stationary ring 20.
Further, when rotating ring 10 rotates along with described main shaft, it is socketed in the elastic sealed body 30 on the outer circumference surface of stationary ring 20 and can provide radially inner power for stationary ring 20, so that the outer circumference surface of the inner peripheral surface of stationary ring 20 and rotating ring 10 fits tightly.
Thus, the axial plane mechanical seal that the embodiment of the present invention provides is by sealing relatively simple, that easily assembling structure achieves rotating machinery, and the velocity gradient value between rubbing surface is definite value, and frictional force is little.Additionally, have employed the mode of socket to reduce the requirement of assembly precision, the fit structure of elastic sealed body and stationary ring etc. is also beneficial to eliminate axial force energy imbalance when using.
Preferably, on the inner peripheral surface of stationary ring 20, it is provided with at least one closing seam line.Thus, shrink to rotating ring 10 when stationary ring 20 is subject to the radial pressure of elastic sealed body 30, it is possible to make the outer circumference surface laminating formation sealing of described closing seam line and rotating ring 10.Thus, arranged by simple structure, further increase the sealing property between rotating ring 10 and stationary ring 20.Certainly, the quantity of closing seam line can be determined according to the condition such as requirement and actual working environment of sealing property.
Fig. 2 is the structural representation of stationary ring according to embodiments of the present invention, and Fig. 3 is the structural representation of blade according to embodiments of the present invention.
As shown in Figures 2 and 3, stationary ring 20 can include multilayer sealing ring, and described multilayer sealing ring stacks together formation circulus；Each sealing ring can include multiple blade 21, and the plurality of blade is in same circumferentially spaced about layout, i.e. the plurality of blade is spaced apart in the circumferential.Certainly, every layer of sealing ring can also be formed as complete circulus, combines without by more blades 21.The number of plies of sealing ring can be two-layer or more than two-layer.
Further, every layer of sealing ring can also include alignment pin 22, blade 21 can be arranged to install the installation portion of described alignment pin.Described installation portion can be the installation through hole on described blade, it is also possible to be the locating slot that arranges on the edge of described elastic sealed body of described blade.Thus, it is possible to the blade 21 that be will be located on different layers by alignment pin 22 is linked together, be conducive to improving the overall construction intensity of stationary ring 20.It is of course also possible to multilayer sealing ring is stacked together by the mode of directly crimping.
Preferably, when adopting alignment pin 22, the adjacent circumferentially-spaced diameter more than described alignment pin between two described blades, when elastic sealed body 30 provides radially inner power for stationary ring 20, to realize stationary ring to contract so that the outer circumference surface laminating of described closing seam line and rotating ring 10 is formed and seals.
Preferably, stationary ring 20 can include at least two layers of sealing ring, and in the central axial direction of stationary ring 20, and the blade 21 of adjacent two-layer sealing ring staggers setting.That is, along the central axial direction of stationary ring 20, on adjacent two-layer sealing ring, the end of two corresponding blades 21 is offset from each other setting.
Preferably, as in figure 2 it is shown, adopting when alignment pin 22, stationary ring 20 can include three-layer sealed ring, in the central axial direction of stationary ring 20, the blade 21 of adjacent two-layer sealing ring staggers settings, the blade 21 alignment setting of the two-layer sealing ring of interlayer.Namely, along the central axial direction of stationary ring 20, on adjacent two-layer sealing ring, the end of two corresponding blades 21 is offset from each other setting, on the two-layer sealing ring of interlayer (a non-conterminous and alternating floor), the end of two corresponding blades 21 is that alignment is arranged.
Thus, when elastic sealed body 30 provides radially inner power for stationary ring 20, achieve stationary ring to contract, make the outer circumference surface laminating formation sealing of described closing seam line and rotating ring 10, and facilitate the blade 21 utilizing alignment pin 22 to connect different layers, also by stagger setting and the alignment set-up mode that set especially, it is ensured that all even Mass Distribution of stationary ring 20 structural strength in the circumferential is uniform.Certainly, depending on application scenario, the stationary ring 20 with above-mentioned connection and/or set-up mode can also include the sealing ring more than three layers.
Fig. 4 is the structural representation of rotating ring according to embodiments of the present invention.As shown in Figure 4, rotating ring 10 is the ring bodies with certain axial length, and its axial length can be determined according to the structure of matched described main shaft.
Fig. 5 is the structural representation of elastic sealed body according to embodiments of the present invention.As it is shown in figure 5, elastic sealed body 30 is also the ring bodies with certain axial length, its axial length both can less than the axial length of matched stationary ring 20, it is also possible to more than the axial length of matched stationary ring 20.Elastic sealed body 30 such as can adopt rubber etc. to have elastic material and make.
Fig. 6 is the structural representation of housing according to embodiments of the present invention.In conjunction with Fig. 1 and Fig. 6, housing 40 includes two arch sections cooperated, for instance, two arch sections can be cooperated by the mode of latch or joggle, collectively forms the overall structure of housing 40.All can arranging the fixture 41 with through hole on two arch sections, housing 40 is fixed by fixture 41, for instance be fixed on the pump housing.Additionally, the outer surface of at least one sidewall of housing 40 is provided with seal groove or sealing surface, for the sealing between outer surface and the parts of fixing housing of the sidewall of described housing.
Compared with prior art, the simple in construction of axial plane mechanical seal of the present invention, easy installation and removal, and the velocity gradient value between rubbing surface is definite value, frictional force is little, therefore, it is possible to meet the sealing requirement of rotating machinery better.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (12)
1. the axial plane mechanical seal being applied to rotating machinery, it is characterised in that described axial plane mechanical seal includes stationary ring, elastic sealed body and housing；
Wherein, described stationary ring is socketed on the outer circumference surface of the main shaft of described rotating machinery, described elastic sealed body is socketed on the outer circumference surface of described stationary ring, described elastic sealed body is placed in described housing, the outer circumference surface of described elastic sealed body, the inner surface of longitudinal end of described housing and the inner surface of two sidewalls surround the standby pressure chamber of sealing, described standby pressure chamber is for by carrying pipe connection device for exerting, and the part radially that is positioned at of described stationary ring is placed in described housing.
2. the axial plane mechanical seal being applied to rotating machinery according to claim 1, it is characterised in that being provided with rotating ring between described stationary ring and main shaft, described rotating ring rotates on the outer circumference surface being socketed in the main shaft of described rotating machinery and with described main shaft.
3. the axial plane mechanical seal being applied to rotating machinery according to claim 2, it is characterized in that, the inner peripheral surface of described stationary ring is provided with at least one closing seam line, described stationary ring is for shrinking to described rotating ring when being subject to the radial pressure of described elastic sealed body so that the outer circumference surface laminating of described closing seam line and described rotating ring is formed and seals.
4. the axial plane mechanical seal being applied to rotating machinery according to Claims 2 or 3, it is characterised in that described stationary ring includes sealing ring, sealing ring described in multilamellar stacks together formation circulus.
5. the axial plane mechanical seal being applied to rotating machinery according to claim 4, it is characterised in that described sealing ring includes blade, and multiple described blades are in same circumferentially spaced about layout.
6. the axial plane mechanical seal being applied to rotating machinery according to claim 5, it is characterised in that described sealing ring also includes alignment pin, and described blade is provided with the installation portion for installing described alignment pin.
7. the axial plane mechanical seal being applied to rotating machinery according to claim 6, it is characterised in that the adjacent circumferentially-spaced diameter more than described alignment pin between two described blades.
8. the axial plane mechanical seal being applied to rotating machinery according to claim 6, it is characterised in that described stationary ring includes at least two layers of described sealing ring, in the central axial direction of described stationary ring, the blade of sealing ring described in adjacent two-layer staggers setting.
9. the axial plane mechanical seal being applied to rotating machinery according to claim 6, it is characterized in that, described stationary ring includes at least sealing ring described in three layers, in the central axial direction of described stationary ring, the blade of sealing ring described in adjacent two-layer staggers setting, and the blade alignment of sealing ring described in the two-layer of interlayer is arranged.
10. the axial plane mechanical seal being applied to rotating machinery according to claim 1 and 2, it is characterised in that described housing includes two arch sections cooperated.
11. the axial plane mechanical seal being applied to rotating machinery according to claim 10, it is characterised in that be provided with the fixture with through hole on said two arch section.
12. the axial plane mechanical seal being applied to rotating machinery according to claim 1, it is characterised in that the outer surface of at least one sidewall of described housing is provided with seal groove or sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117933.3U CN205350351U (en) | 2016-02-05 | 2016-02-05 | Be applied to rotating machinery's axial plane mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117933.3U CN205350351U (en) | 2016-02-05 | 2016-02-05 | Be applied to rotating machinery's axial plane mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350351U true CN205350351U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620117933.3U Withdrawn - After Issue CN205350351U (en) | 2016-02-05 | 2016-02-05 | Be applied to rotating machinery's axial plane mechanical seal |
Country Status (1)
| Country | Link |
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| CN (1) | CN205350351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587862A (en) * | 2016-02-05 | 2016-05-18 | 沈阳耐蚀合金泵股份有限公司 | Axial surface mechanical seal applied to rotating machinery |
-
2016
- 2016-02-05 CN CN201620117933.3U patent/CN205350351U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587862A (en) * | 2016-02-05 | 2016-05-18 | 沈阳耐蚀合金泵股份有限公司 | Axial surface mechanical seal applied to rotating machinery |
| WO2017133554A1 (en) * | 2016-02-05 | 2017-08-10 | 沈阳耐蚀合金泵股份有限公司 | Shaft surface mechanical seal applied to rotating machinery |
| CN105587862B (en) * | 2016-02-05 | 2019-05-24 | 沈阳耐蚀合金泵股份有限公司 | Axial plane mechanical seal applied to rotating machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160629 Effective date of abandoning: 20190524 |