SU1732096A1 - Labyrinth seal for revolving shafts - Google Patents
Labyrinth seal for revolving shafts Download PDFInfo
- Publication number
- SU1732096A1 SU1732096A1 SU904806254A SU4806254A SU1732096A1 SU 1732096 A1 SU1732096 A1 SU 1732096A1 SU 904806254 A SU904806254 A SU 904806254A SU 4806254 A SU4806254 A SU 4806254A SU 1732096 A1 SU1732096 A1 SU 1732096A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cavity
- seal
- labyrinth seal
- shaft
- working fluid
- Prior art date
Links
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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/80—Labyrinth sealings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Изобретение относитс к уплотнитель- ной технике. Цель изобретени - повышение надежности работы. Уплотнение вала 1 содержит корпус 2 и обойму 3, разделенные сливной полостью 4. На охватывающих вал поверхност х корпуса и обоймы выполнены винтовые канавки 5, при этом в обойме выполнен сквозной продольный наклонный в сторону полости 4 паз 7, обеспечивающий конденсацию в нем паров рабочей жидкости и слив ее в полость 4 и снижающий тем протечку рабочей жидкости через уплотнение . 2 ил. СО С VJ GO ю О О ОThe invention relates to a sealing technique. The purpose of the invention is to increase the reliability of work. Seal shaft 1 includes a housing 2 and a yoke 3, separated by a drain cavity 4. Screw grooves 5 are made on the surfaces of the body and yoke enveloping the shaft, while the groove 7 is made through the longitudinal through longitudinal inclined towards the cavity 4, providing condensation of working fluid vapors in it and drain it into the cavity 4 and thereby reducing the leakage of the working fluid through the seal. 2 Il. SO WITH VJ GO YO O O O O
Description
Изобретение относитс к уплотнитель- ной технике, в частности к бесконтактным уплотнени м вращающихс валов.The invention relates to a sealing technique, in particular to contactless seals of rotating shafts.
Цель изобретени - повышение надежности работы уплотнени .5The purpose of the invention is to increase the reliability of the seal .5
На фиг. 1 изображено уплотнение, продольный разрез; на фиг. 2 -узел I на фиг. 1.FIG. 1 shows a seal, a longitudinal section; in fig. 2 is node I in FIG. one.
Уплотнение вала 1 содержит корпус 2 и наружную обойму 3, разделенные кольцевой сливной полостью 4. На охватывающих 10 вал с зазором поверхност х корпуса и обоймы выполнены маслоотгонные винтовые канавки 5, при этом на наружной поверхности вала также выполнена винтова канавка 6. В обойме 3 выполнен сквозной продольный 15 паз 7, наклонный в сторону полости 4. В корпусе выполнено сливное отверстие 8.Seal shaft 1 includes a housing 2 and an outer race 3, separated by an annular drain cavity 4. On the surfaces of the housing 10 covering the shaft and the sleeves with oil clearance, screw-drain grooves 5 are made, while screw groove 6 is also made on the outer surface of the shaft. through longitudinal 15 groove 7, inclined towards the cavity 4. In the case there is a drain hole 8.
Уплотнение работает следующим образом .Seal works as follows.
При вращении вала 1 в зазоре между 20 ним и обоймой 3 происходит разделение вух встречных потоков воздуха - воздух из окружающей среды канавкой 6 вала 1 нагнетаетс в уплотн емую полость, а смешанный с парами и капл ми рабочей жидкости 25When the shaft 1 rotates in the gap between 20 it and the holder 3, the separation of air from opposite currents takes place — air from the environment by the groove 6 of shaft 1 is injected into the sealing cavity, and mixed with vapors and drops of working fluid 25
(масла) выходит через канавки 5 корпуса 2 и обоймы 3 в окружающую среду, при этом при расширении его в наклонном пазу 7 происходит конденсаци паров и капель рабочей жидкости и слив ее в полость 4. При остановке вала в рабочую жидкость со стенок канавки 5 обоймы 3 стекает в паз 7, а затем через полость 4 и отверстие 8 в уплотн емую полость.(oil) escapes through the grooves 5 of the housing 2 and the casing 3 into the environment, while expanding it in the inclined groove 7, the vapors and drops of the working fluid condense and drain into the cavity 4. When the shaft stops, the working fluid from the walls of the groove 5 of the cage 3 flows into the groove 7, and then through the cavity 4 and the hole 8 into the sealed cavity.
Таким образом, выполнение паза в обойме снижает протечку рабочей жидкости в окружающую среду и тем повышает надежность работы уплотнени .Thus, making the groove in the cage reduces the leakage of the working fluid into the environment and thereby increases the reliability of the seal.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU904806254A SU1732096A1 (en) | 1990-03-27 | 1990-03-27 | Labyrinth seal for revolving shafts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU904806254A SU1732096A1 (en) | 1990-03-27 | 1990-03-27 | Labyrinth seal for revolving shafts |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1732096A1 true SU1732096A1 (en) | 1992-05-07 |
Family
ID=21503954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU904806254A SU1732096A1 (en) | 1990-03-27 | 1990-03-27 | Labyrinth seal for revolving shafts |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1732096A1 (en) |
-
1990
- 1990-03-27 SU SU904806254A patent/SU1732096A1/en active
Non-Patent Citations (1)
Title |
---|
Бушмарин Л.Б. и др. Механические передачи вертолетов. М.: Машиностроение, 1983, с. .120. * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO980596D0 (en) | Sealing device for a rotor shaft and a screw compressor with such a device | |
DE3168428D1 (en) | High pressure upstream pumping seal combination | |
CA1270026A (en) | Sealing method for bearing assemblies | |
ES2179229T3 (en) | DEVICE FOR OBTURING AN ANNULAR INTERSTICE BETWEEN A HOUSING AND A SHAFT. | |
CA2043236A1 (en) | Split mechanical face seal | |
ES2179296T3 (en) | CIRCUFFERENTIAL HERMETIC BOARD WITH CERAMIC ROTOR. | |
FR2552179B3 (en) | COMBINED FERROFLUID BEARING | |
SE8701123D0 (en) | SCREW ROTOR MACHINE | |
IT1219158B (en) | PROVISION FOR WATERPROOF SEALING OF BEARINGS IN A SPECIAL WAY OF ARTICULATED BEARINGS | |
SE8007344L (en) | TETNINGSRING | |
BR8704789A (en) | CASSETTE SEALING | |
ATE20129T1 (en) | RADIAL SHAFT SEAL. | |
SU1732096A1 (en) | Labyrinth seal for revolving shafts | |
ATE49630T1 (en) | MOTOR PUMP UNIT WITH NO EXTERNAL OIL LEAKAGE. | |
US4065136A (en) | Shaft seal assembly for a rotary machine | |
KR100279013B1 (en) | Shaft seal | |
IE830112L (en) | Mechanical seal for valve spindle | |
SU651161A1 (en) | Combination seal of revolving shaft | |
SE8403572L (en) | AXELTETNING | |
ATE79665T1 (en) | MECHANICAL SEAL. | |
GB538318A (en) | Improvements in or relating to means for sealing moving parts against leakage of oilor other liquids or gases or dust or the like | |
JPS55142914A (en) | Double casing turbine | |
SU1569484A1 (en) | Shaft packing | |
RU2056003C1 (en) | Bearing assembly of compressor crankshaft | |
PT1075613E (en) | MECHANICAL SEALANT IN PARTICULAR FOR PUMP |