CN205715678U - A kind of mechanically-sealing apparatus of band spring cylindrical pin - Google Patents
A kind of mechanically-sealing apparatus of band spring cylindrical pin Download PDFInfo
- Publication number
- CN205715678U CN205715678U CN201620392705.7U CN201620392705U CN205715678U CN 205715678 U CN205715678 U CN 205715678U CN 201620392705 U CN201620392705 U CN 201620392705U CN 205715678 U CN205715678 U CN 205715678U
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- China
- Prior art keywords
- spring
- ring
- cylindrical pin
- rotating ring
- mechanically
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- Expired - Fee Related
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Abstract
A kind of mechanically-sealing apparatus of band spring cylindrical pin, the rotating ring including the spring base being fixed on pump shaft by holding screw, being arranged at spring base coaxial direction and the stationary ring being closely set in rotating ring one end, described rotating ring is cascade ring structure, one end of described rotating ring short round spring abutment is provided with a throw-out collar, being provided with the spring cylindrical pin preventing spring beat that some mobilizable springs are connected with throw-out collar between described throw-out collar and spring base, described spring cylindrical pin is positioned in the endoporus of spring；Described rotating ring and stationary ring fit tightly formation primary sealing area under spring force and pressure medium effect.Rotating ring of the present utility model provides stretch compensation by multiple springs, both form stretch compensation assembly, use multiple spring uniform, spring cylindrical pin is coordinated to use, its axial thrust more uniformly spreads, the overall floatability of elastic compensating assembly is more preferable, is not easily caused friction and tilts and be allowed to damage, being possible to prevent spring beat thus provide stretch compensation the most equably.
Description
Technical field
This utility model relates to mechanical seal, uses spring to make flexible member and the mechanically-sealing apparatus of band spring cylindrical pin particularly to a kind of.
Background technology
Spring type mechanical sealing device is extensively applied and in oil, chemical industry, thermoelectricity, recover the oil, in the fluid machinery chemical pump with apparatus for rotating of the industries such as fridge, the core of mechanical seal is the condensate film stability of the sealing surface of sealing ring, there is various factors in actual applications affects sealing effectiveness at present, owing to flexible member is susceptible to beat by centrifugal action, spring mechanical is sealed, the beat of spring can make the uneven even elastic force of elastic force acting on sealing surface lose efficacy, cause the instability of mechanical seal, bad result is seal failure, drastically influence production and safety.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art to provide the fridge mechanically-sealing apparatus of band spring cylindrical pin of a kind of stable, strong adaptability and length in service life.
For achieving the above object, this utility model adopts the following technical scheme that:
A kind of mechanically-sealing apparatus of band spring cylindrical pin, the rotating ring including the spring base being fixed on pump shaft by holding screw, being arranged at spring base coaxial direction and the stationary ring being closely set in rotating ring one end, described rotating ring is cascade ring structure, one end of described rotating ring short round spring abutment is provided with a throw-out collar, being provided with the spring cylindrical pin preventing spring beat that some mobilizable springs are connected with throw-out collar between described throw-out collar and spring base, described spring cylindrical pin is positioned in the endoporus of spring；Described rotating ring and stationary ring fit tightly formation primary sealing area under spring force and pressure medium effect.
Further, one end away from rotating ring of described stationary ring connects a gland, and the position that described gland contacts with stationary ring is provided with a stop pin, and stationary ring is opened and is shaped with a groove and matches with this stop pin, this groove and stop pin composition anti-rotation structure.
Further, being provided with a stationary ring sealing ring with at gland sealing outside described stationary ring, this stationary ring sealing ring is a relocatable O.
Further, described seal ring of moving ring is a relocatable O.
Further, described spring base is provided with the some lugs coordinating transmission moment of torsion with rotating ring.
Further, one end inwall of the nearly rotating ring of described spring base is provided with a jump ring.
Further, described spring cylindrical pin length is more than the pressure also height of spring.
This utility model has the beneficial effect that:
One, rotating ring provides stretch compensation by multiple springs, both form stretch compensation assembly, use multiple spring uniform, coordinating spring cylindrical pin to use, its axial thrust more uniformly spreads, and the overall floatability of elastic compensating assembly is more preferable, it is not easily caused friction and tilts and be allowed to damage, being possible to prevent spring beat thus stretch compensation is provided the most equably；Spring is positioned in spring eye uniform on spring base, and spring does not contacts with medium, and working environment is improved.
Its two, spring cylindrical pin length more than spring pressure and height, can effectively prevent the spring of mechanically-sealing apparatus from causing elastic force to lose efficacy because decrement is excessive.
Its three, the stationary ring sealing ring of O shape and seal ring of moving ring can float, it is ensured that sealing effectiveness when elastic compensating assembly is axially movable, it is ensured that the effectiveness of high pressure conditions lower seal.
Its four, the ledge arrangement of spring base coordinates with rotating ring, can preferably transmit moment of torsion, prevent transmit dynamic failure.
Accompanying drawing explanation
Fig. 1 is this utility model schematic diagram.
Drawing reference numeral illustrates:
1, rotating ring；2, stop pin；3, stationary ring；4, seal ring of moving ring；5, jump ring；6, throw-out collar；7, spring；8, spring base；9, holding screw；10, spring cylindrical pin；11, back-up ring；12, stationary ring sealing ring.
Detailed description of the invention
1 introduce a kind of detailed description of the invention of the present utility model below in conjunction with the accompanying drawings.
As it is shown in figure 1, the mechanically-sealing apparatus of a kind of band spring cylindrical pin is made up of spring cylindrical pin 10, spring 7, rotating ring 1, stationary ring 3, seal ring of moving ring 4, stationary ring sealing ring 12, throw-out collar 6, jump ring 5, back-up ring 11, spring base 8.Spring 7 and spring cylindrical pin 10 are arranged in spring base 8, spring cylindrical pin 10 length is more than the pressure also height of spring 7, spring cylindrical pin 10 is positioned over spring 7 endoporus, is located between throw-out collar 6 and spring base 8 and produces interaction force by compression spring, provides stretch compensation for rotating ring 1；Spring base 8 is designed with ledge arrangement and coordinates transmission moment of torsion with rotating ring 1, and spring base 8 is fixed on pump shaft to transmit power by holding screw 9；The cascade ring structure that rotating ring 1 designs for balanced type, rotating ring 1 and stationary ring 3 fit tightly formation primary sealing area under spring force with pressure medium effect, and rotating ring 1 and stationary ring 3 are under the flexible member effect of multiple springs 7, and the formation sliding friction that contacts with each other realizes sealing；A stop pin 2 is installed in gland and stationary ring 3 afterbody contact position, matches with the groove of stationary ring 3 afterbody, it is achieved anti-rotation effect.Being provided with a jump ring 5 on one end inwall of the nearly rotating ring 1 of spring base 8, jump ring 5 limits rotating ring 1 at axial horizontal moving ranges.
Seal ring of moving ring 4 is located between back-up ring 11 and throw-out collar 6, by realizing sealing with the compression of rotating ring 1 and pump shaft；Stationary ring sealing ring 12 be located at outside stationary ring 3 with gland sealing at, by realizing sealing with the compression of gland and stationary ring 3 outer surface, seal ring of moving ring 4 and stationary ring sealing ring 12 are all relocatable O.
Rotating ring 1 is floated and is installed in the rotating ring hole of rotating ring 1 and pump shaft formation by seal ring of moving ring 4, stationary ring 3 is installed in gland side medium endoporus, in the uniform spring eye being positioned over spring base 8 of some springs 7, spring 7 provides stretch compensation for rotating ring 1, rotating ring 1 and stationary ring 3 form slipper seal, rotating ring 1 fits tightly formation primary sealing area with stationary ring 3 under spring force with pressure medium effect, and mechanical single seal is integrally formed.
Technical scope of the present utility model is not imposed any restrictions by the above, all according to this utility model technical spirit, any amendment, equivalent variations and the modification being made above embodiment, all still falls within the range of the technical solution of the utility model.
Claims (6)
1. the mechanically-sealing apparatus of a band spring cylindrical pin, the rotating ring including the spring base being fixed on pump shaft by holding screw, being arranged at spring base coaxial direction and the stationary ring being closely set in rotating ring one end, it is characterized in that: described rotating ring is cascade ring structure, one end of described rotating ring short round spring abutment is provided with a throw-out collar, being provided with the spring cylindrical pin preventing spring beat that some mobilizable springs are connected with throw-out collar between described throw-out collar and spring base, described spring cylindrical pin is positioned in the endoporus of spring；Described rotating ring and stationary ring fit tightly formation primary sealing area under spring force and pressure medium effect.
The mechanically-sealing apparatus of a kind of band spring cylindrical pin the most according to claim 1, it is characterized in that: one end away from rotating ring of described stationary ring connects a gland, the position that described gland contacts with stationary ring is provided with a stop pin, stationary ring is opened and is shaped with a groove and matches with this stop pin, this groove and stop pin composition anti-rotation structure.
The mechanically-sealing apparatus of a kind of band spring cylindrical pin the most according to claim 2, it is characterised in that: being provided with a stationary ring sealing ring with at gland sealing outside described stationary ring, this stationary ring sealing ring is a relocatable O.
The mechanically-sealing apparatus of a kind of band spring cylindrical pin the most according to claim 1, it is characterised in that: described spring base is provided with the some lugs coordinating transmission moment of torsion with rotating ring.
The mechanically-sealing apparatus of a kind of band spring cylindrical pin the most according to claim 1, it is characterised in that: one end inwall of the nearly rotating ring of described spring base is provided with a jump ring.
The mechanically-sealing apparatus of a kind of band spring cylindrical pin the most according to claim 1, it is characterised in that: described spring cylindrical pin length is more than the pressure also height of spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620392705.7U CN205715678U (en) | 2016-05-04 | 2016-05-04 | A kind of mechanically-sealing apparatus of band spring cylindrical pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620392705.7U CN205715678U (en) | 2016-05-04 | 2016-05-04 | A kind of mechanically-sealing apparatus of band spring cylindrical pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715678U true CN205715678U (en) | 2016-11-23 |
Family
ID=57333021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620392705.7U Expired - Fee Related CN205715678U (en) | 2016-05-04 | 2016-05-04 | A kind of mechanically-sealing apparatus of band spring cylindrical pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715678U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355415A (en) * | 2017-07-28 | 2017-11-17 | 丹东克隆集团有限责任公司 | Nuclear power condensate pump mechanically-sealing apparatus |
| CN107956878A (en) * | 2017-12-28 | 2018-04-24 | 温州市天成密封件制造有限公司 | Periphery wave V-shaped ring mechanical seal |
| CN109163098A (en) * | 2018-10-31 | 2019-01-08 | 东莞市华汇精密机械有限公司 | A kind of dry-type mechanical sealing device for prohibiting grease health blender |
| CN109654230A (en) * | 2018-12-28 | 2019-04-19 | 洛普兰机械设备(宁波)有限公司 | Hydraulic propeller mechanical sealing device used for pump |
| CN110005819A (en) * | 2019-04-30 | 2019-07-12 | 西安永华集团有限公司 | A kind of superhigh pressure sealing modular construction |
| CN114576195A (en) * | 2022-04-28 | 2022-06-03 | 中密控股股份有限公司 | Novel compensation seal assembly for secondary seal of static pressure shaft seal of nuclear main pump |
-
2016
- 2016-05-04 CN CN201620392705.7U patent/CN205715678U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355415A (en) * | 2017-07-28 | 2017-11-17 | 丹东克隆集团有限责任公司 | Nuclear power condensate pump mechanically-sealing apparatus |
| CN107355415B (en) * | 2017-07-28 | 2023-07-18 | 丹东克隆集团有限责任公司 | Nuclear power condensate pump mechanical seal device |
| CN107956878A (en) * | 2017-12-28 | 2018-04-24 | 温州市天成密封件制造有限公司 | Periphery wave V-shaped ring mechanical seal |
| CN107956878B (en) * | 2017-12-28 | 2024-02-02 | 温州市天成密封件制造有限公司 | Peripheral wave-shaped sealing ring mechanical seal |
| CN109163098A (en) * | 2018-10-31 | 2019-01-08 | 东莞市华汇精密机械有限公司 | A kind of dry-type mechanical sealing device for prohibiting grease health blender |
| CN109654230A (en) * | 2018-12-28 | 2019-04-19 | 洛普兰机械设备(宁波)有限公司 | Hydraulic propeller mechanical sealing device used for pump |
| CN109654230B (en) * | 2018-12-28 | 2023-10-03 | 洛普兰机械设备(宁波)有限公司 | Mechanical sealing device for pump of water-jet propeller |
| CN110005819A (en) * | 2019-04-30 | 2019-07-12 | 西安永华集团有限公司 | A kind of superhigh pressure sealing modular construction |
| CN114576195A (en) * | 2022-04-28 | 2022-06-03 | 中密控股股份有限公司 | Novel compensation seal assembly for secondary seal of static pressure shaft seal of nuclear main pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161123 |