CN105134957A - Shaft seal with labyrinth seal structure - Google Patents
Shaft seal with labyrinth seal structure Download PDFInfo
- Publication number
- CN105134957A CN105134957A CN201510649194.2A CN201510649194A CN105134957A CN 105134957 A CN105134957 A CN 105134957A CN 201510649194 A CN201510649194 A CN 201510649194A CN 105134957 A CN105134957 A CN 105134957A
- Authority
- CN
- China
- Prior art keywords
- shaft
- ring
- main shaft
- copper ring
- seal
- Prior art date
- 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.)
- Pending
Links
Abstract
The invention discloses a shaft seal with a labyrinth seal structure, which comprises a main shaft, wherein a shaft sleeve and a wearing ring are sheathed on the lower end of the lower end; the shaft sleeve and wearing ring can rotate along with the main shaft in the main shaft rotation process; a copper ring fixed seat is fixedly arranged between the shaft sleeve and wearing ring; a self-lubrication copper ring is installed in the copper ring fixed seat; when the shaft sleeve rotates along with the main shaft, the generated backward thrust can prevent the material from flowing out; and when a small amount of material still flows out, the thrust of the self-lubrication copper ring and wearing ring further prevents the material from flowing out. The shaft seal has the advantages of obvious leakage control effect and simple and feasible principle, and does not need grease in the traditional shaft seal structure in the working process (such as intervention of DOP oil), thereby greatly lowering the cost. The self-lubrication copper ring is small in structure and convenient for maintenance.
Description
Technical field
The present invention relates to machinery seal arrangement field, be specially a kind of shaft seal being designed with labyrinth seal structure.
Background technique
Gland seal device is the common mechanical sealing of rotating machinery, as equipment such as centrifugal pump, centrifuge, reactor and compressors.Because transmission shaft is applied in inside and outside equipment, a circumferential clearance is there is between such axle and equipment, medium in equipment passes through this gap to outward leakage, if equipment internal pressure is lower than barometric pressure, then air extrudes in equipment, if equipment internal pressure is higher than barometric pressure, then internal flows is to equipment outward leakage, therefore for stoping the gland seal device of leakage to seem particularly necessary.
But existing shaft seal still has stays technology shortcoming to be further improved.Sealing means as conventional powder machinery work rotating shaft adopts backbone sealing ring and seal ring substantially, but disintegrating apparatus can produce a large amount of dust in the course of the work, these dust along with air all-pervasive, accumulation can be formed there being the region arranging Sealing, these deposits can combine by grease that is piecemeal and sealing position, final formation oil clot, makes the gap of Sealing and axle grind larger and larger, ultimate failure.
In addition, also there is the problems such as cost is high, inconvenient maintenance in many gland seal devices.
Summary of the invention
For the problems referred to above, the invention provides a kind of shaft seal being designed with labyrinth seal structure, it is effective that it controls to leak material, and it is convenient to realize, and can effectively save production cost.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of shaft seal being designed with labyrinth seal structure, comprise main shaft, described main shaft lower end is arranged with axle sleeve and wear ring, wherein said axle sleeve and wear ring together rotate with it in main axis process, and be fixedly installed a copper ring fixed base therebetween, one is provided with from moistening copper ring in described copper ring fixed base, when described axle sleeve together rotates with main shaft, it produces reaction thrust and prevents material from flowing out, when still having a small amount of material to flow out, the described thrust from profit copper ring and wear ring prevents material from flowing out further.
As the improvement of technique scheme, described axle sleeve is provided with the screw thread of inclination.
As the improvement of technique scheme, described wear ring is provided with two, is provided with spring therebetween.
The beneficial effect that the present invention brings has:
In this shaft seal structure, axle sleeve and wear ring are dynamic structure, the two together rotates with main shaft, the yellow fixed base of copper is then static structure with certainly moistening copper ring, when axle sleeve together rotates with main shaft, material can be squeezed in by its reaction thrust produced again, thus prevents most material from flowing out, when still having a small amount of material to flow out, can effectively prevent material from flowing out further from the thrust of profit copper ring and wear ring.
The present invention controls Lou to expect successful, and principle is simple and easy to realize, and without the need to grease in traditional shaft seal structure in its working procedure, as the intervention of DOP oil, cost is greatly reduced, and simultaneously from profit copper ring compact structure, is extremely convenient to maintenance.
Accompanying drawing explanation
Below in conjunction with drawings and the specific embodiments, the invention will be further described,
Fig. 1 is shaft seal structure schematic diagram of the present invention;
Fig. 2 is axle sleeve structure schematic diagram of the present invention;
Fig. 3 is wear-resisting ring structure schematic diagram of the present invention;
Fig. 4 is copper ring fixed seat structure schematic diagram of the present invention;
Fig. 5 is of the present invention from profit copper ring structural representation;
Reference name in figure corresponding to each sequence number is as follows:
Main shaft 1, axle sleeve 2, wear ring 3, copper ring fixed base 4, certainly profit copper ring 5.
Embodiment
The invention provides a kind of shaft seal being designed with labyrinth seal structure, it is effective that it controls to leak material, and it is convenient to realize, and can effectively save production cost.
Specifically see Fig. 1 to Fig. 5, as a kind of shaft seal, it mainly comprises main shaft 1, described main shaft 1 lower end is arranged with axle sleeve 2 and wear ring 3, its Intermediate shaft sleeve 2 and wear ring 3 together rotate with it in main shaft 1 rotation process, and be fixedly installed a copper ring fixed base 4 therebetween, one is then provided with from profit copper ring 5 in copper ring fixed base 4, when above-mentioned axle sleeve 2 together rotates with main shaft 1, it can produce reaction thrust thus prevent material from flowing out, when still having a small amount of material to flow out, can prevent material from flowing out further from the thrust of profit copper ring 5 and wear ring 3.
Wherein, axle sleeve 2 is provided with the screw thread of inclination, it can produce certain reaction thrust in main shaft 1 rotation process, and wear ring 3 is provided with two simultaneously, is provided with spring therebetween, forms buffer protection function.
In this shaft seal structure, axle sleeve 2 and wear ring 3 are dynamic structure, the two together rotates with main shaft 1, the yellow fixed base of copper is then static structure with certainly moistening copper ring 5, when axle sleeve 2 together rotates with main shaft 1, material can be squeezed in by its reaction thrust produced again, thus prevents most material from flowing out, when still having a small amount of material to flow out, can effectively prevent material from flowing out further from the thrust of profit copper ring 5 and wear ring 3.
The present invention controls Lou to expect successful, and principle is simple and easy to realize, and without the need to grease in traditional shaft seal structure in its working procedure, as the intervention of DOP oil, cost is greatly reduced, and simultaneously from profit copper ring 5 compact structure, is extremely convenient to maintenance.
Above specific embodiments of the invention have been described in detail, but content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (3)
1. one kind is designed with the shaft seal of labyrinth seal structure, it is characterized in that: comprise main shaft (1), described main shaft (1) lower end is arranged with axle sleeve (2) and wear ring (3), wherein said axle sleeve (2) and wear ring (3) together rotate with it in main shaft (1) rotation process, and be fixedly installed a copper ring fixed base (4) therebetween, one is provided with from moistening copper ring (5) in described copper ring fixed base (4), when described axle sleeve (2) together rotates with main shaft (1), it produces reaction thrust and prevents material from flowing out, when still having a small amount of material to flow out, the described thrust from moistening copper ring (5) and wear ring (3) prevents material from flowing out further.
2. a kind of shaft seal being designed with labyrinth seal structure according to claim 1, is characterized in that: the screw thread described axle sleeve (2) being provided with inclination.
3. a kind of shaft seal being designed with labyrinth seal structure according to claim 1, is characterized in that: described wear ring (3) is provided with two, is provided with spring therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649194.2A CN105134957A (en) | 2015-10-09 | 2015-10-09 | Shaft seal with labyrinth seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649194.2A CN105134957A (en) | 2015-10-09 | 2015-10-09 | Shaft seal with labyrinth seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105134957A true CN105134957A (en) | 2015-12-09 |
Family
ID=54720431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510649194.2A Pending CN105134957A (en) | 2015-10-09 | 2015-10-09 | Shaft seal with labyrinth seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134957A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107261610A (en) * | 2017-06-08 | 2017-10-20 | 恒力石化（大连）有限公司 | Filter with supporting construction |
| CN107355543A (en) * | 2017-08-30 | 2017-11-17 | 天津市联强机械密封技术有限公司 | A kind of outer flushing built-in bearing integrated mechanical sealing |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3612548A (en) * | 1969-11-26 | 1971-10-12 | Borg Warner | Mechanical seal spring holder |
| CN2059699U (en) * | 1990-01-23 | 1990-07-25 | 中国石油天然气总公司管道局襄樊输油公司 | Spiral seal device for d oil-line pump |
| CN2077936U (en) * | 1990-11-28 | 1991-05-29 | 沈阳辽宁机械密封技术服务公司 | Machinery sealing |
| CN2178811Y (en) * | 1993-10-26 | 1994-10-05 | 汪启麟 | Self-lubricating sealing ring |
| US6315297B1 (en) * | 1998-10-21 | 2001-11-13 | Sealing Technology Pty Ltd. | Seal |
| CN201258969Y (en) * | 2008-08-05 | 2009-06-17 | 崔小锋 | Container type mechanical seal apparatus |
| CN101696730A (en) * | 2009-10-22 | 2010-04-21 | 天津大学 | Sealing device of dynamic mixer |
| CN103527790A (en) * | 2013-10-11 | 2014-01-22 | 中国航天科技集团公司第六研究院第十一研究所 | Metal self-lubrication piston ring |
| CN205001515U (en) * | 2015-10-09 | 2016-01-27 | 张家港市兰航机械有限公司 | Design has bearing seal of labyrinth seals structure |
-
2015
- 2015-10-09 CN CN201510649194.2A patent/CN105134957A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3612548A (en) * | 1969-11-26 | 1971-10-12 | Borg Warner | Mechanical seal spring holder |
| CN2059699U (en) * | 1990-01-23 | 1990-07-25 | 中国石油天然气总公司管道局襄樊输油公司 | Spiral seal device for d oil-line pump |
| CN2077936U (en) * | 1990-11-28 | 1991-05-29 | 沈阳辽宁机械密封技术服务公司 | Machinery sealing |
| CN2178811Y (en) * | 1993-10-26 | 1994-10-05 | 汪启麟 | Self-lubricating sealing ring |
| US6315297B1 (en) * | 1998-10-21 | 2001-11-13 | Sealing Technology Pty Ltd. | Seal |
| CN201258969Y (en) * | 2008-08-05 | 2009-06-17 | 崔小锋 | Container type mechanical seal apparatus |
| CN101696730A (en) * | 2009-10-22 | 2010-04-21 | 天津大学 | Sealing device of dynamic mixer |
| CN103527790A (en) * | 2013-10-11 | 2014-01-22 | 中国航天科技集团公司第六研究院第十一研究所 | Metal self-lubrication piston ring |
| CN205001515U (en) * | 2015-10-09 | 2016-01-27 | 张家港市兰航机械有限公司 | Design has bearing seal of labyrinth seals structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107261610A (en) * | 2017-06-08 | 2017-10-20 | 恒力石化（大连）有限公司 | Filter with supporting construction |
| CN107355543A (en) * | 2017-08-30 | 2017-11-17 | 天津市联强机械密封技术有限公司 | A kind of outer flushing built-in bearing integrated mechanical sealing |
| CN107355543B (en) * | 2017-08-30 | 2023-12-26 | 天津市联强机械密封技术有限公司 | External flushing built-in bearing cartridge type mechanical seal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203604655U (en) | Combined sealing structure of main bearing of roller press | |
| CN202392110U (en) | Shaft sealing device of horizontal scraper centrifuge | |
| CN205001515U (en) | Design has bearing seal of labyrinth seals structure | |
| CN105134957A (en) | Shaft seal with labyrinth seal structure | |
| CN201193709Y (en) | Magnetic mechanical oil seal | |
| CN104989825B (en) | A kind of gland seal device | |
| CN205559794U (en) | Mining double -chain conveyor seals sub -assembly | |
| CN204942057U (en) | Blower fan non-contact mechanical seal structure | |
| CN204511957U (en) | With the mechanical face seals of centrifugal pumps structure of bidirectional screw seal ring | |
| CN103047171A (en) | Novel full-function floating throttling device | |
| CN103851289B (en) | Large high-temperature chicksan | |
| CN202733253U (en) | Connector of centrifuge hydraulic driver and oil pipe | |
| CN203585633U (en) | Rotating joint for natural luster finishing machine | |
| CN104006243B (en) | A kind of high-temperature high-speed rotary joint | |
| CN104235185A (en) | A sliding bearing of a forging press | |
| CN203963014U (en) | A kind of sealed bearing housing structure of bulking machine | |
| CN104964035A (en) | Sealing ring and rotary sealing device thereof | |
| CN204041469U (en) | A kind of air pressure mortar pump seal arrangement | |
| CN202597023U (en) | High-pressure packing sealing device for compressor | |
| CN206221660U (en) | A kind of banbury axle end sealing device | |
| CN203413123U (en) | Mechanical sealing device for pump | |
| CN204299939U (en) | Pump hermetically-sealed construction | |
| CN203796953U (en) | Sealing structure of spider arm conveying arm transmission shaft of cigarette making and tipping machine unit | |
| CN103807442A (en) | Self-cleaning mechanical seal cavity structure | |
| CN203548312U (en) | High-temperature-resistance and high-impurity-content-resistance pump sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
|
| RJ01 | Rejection of invention patent application after publication |