CN105402381A - Dual-ring labyrinth seal structure for gearbox - Google Patents
Dual-ring labyrinth seal structure for gearbox Download PDFInfo
- Publication number
- CN105402381A CN105402381A CN201510922122.0A CN201510922122A CN105402381A CN 105402381 A CN105402381 A CN 105402381A CN 201510922122 A CN201510922122 A CN 201510922122A CN 105402381 A CN105402381 A CN 105402381A
- Authority
- CN
- China
- Prior art keywords
- flute profile
- groove
- axis body
- seal structure
- ring
- 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
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention relates to a dual-ring labyrinth seal structure for a gearbox. The dual-ring labyrinth seal structure is used for sealing a transparent cover on the gearbox and a shaft and comprises a static sealing ring fixedly connected with the outer end face of the transparent cover and a movable sealing ring, wherein the shaft is fixedly sleeved with the movable sealing ring. The section of the static sealing ring is a first groove, and the section of the movable sealing ring is a second groove. Groove openings of the first groove and the second groove are formed oppositely. One groove wall of the first groove extends into the second groove. One groove wall of the second groove extends into the first groove. The dual-ring labyrinth seal structure is mainly composed of the two sealing rings, the movable sealing ring is installed on the shaft and rotates along with the shaft in work, and the static sealing ring is installed on the transparent cover and keeps static relative to the transparent cover in work. When the gearbox works, the two sealing rings rotate oppositely, so that a labyrinth channel with the sharp gear top and the sharp turn is formed; when lubricating oil flows through the labyrinth channel, the local abrasion resistance effect is large, and the sealing effect is good; and a gap is reserved between the two sealing rings, so that abrasion is avoided, and regular replacement is not needed.
Description
Technical field
The present invention relates to field of sealing technology, be specifically related to a kind of dicyclo labyrinth seal structure for gear-box.
Background technique
Existing gearbox seals technology has soft packing seal, mechanical seal, skeleton oil seal and labyrinth seal etc.All there are wearing and tearing in wherein soft packing seal, mechanical seal, outside framework oil seal, needs periodic replacement, and existing common labyrinth seal structure generally takes up room comparatively large, and sealing effect is general, often occurs mist of oil, gets rid of wet goods phenomenon.
Summary of the invention
Object of the present invention is just to provide a kind of dicyclo labyrinth seal structure for gear-box, and it can effectively solve the problem, and can realize good gearbox seals in less space.
For achieving the above object, present invention employs following technological scheme:
A kind of dicyclo labyrinth seal structure for gear-box, it is characterized in that: the sealing of dicyclo labyrinth seal structure on gear-box between transparent cover and axis body, comprise the rotary packing ring be located at the stationary seal ring of transparent cover exterior edge face Joint and fixed cover on axis body, the cross section of stationary seal ring is the first flute profile, the cross section of rotary packing ring is the second flute profile, the notch of first and second flute profile is arranged in opposite directions, a cell wall of the first flute profile extends in the second flute profile, and a cell wall of the second flute profile extends in the first flute profile.
Concrete scheme is: the notch of first and second flute profile is closing in shape.First flute profile is U-shaped, first flute profile carries out turnover formation flanging near the cell wall of axis body to the side away from axis body, second flute profile is that angle is arranged near the cell wall of axis body side and the heart yearn of axis body, and angle points to static sealing ring side, first flute profile extends in the second flute profile away from the cell wall of axis body side, and the cell wall of the second flute profile near axis body side extends in the first flute profile.The groove width of the second flute profile first increases gradually along groove depth direction, after reduce gradually.
The dicyclo labyrinth seal structure provided in technique scheme:
1, in less space, multiple tracks labyrinth seal is realized;
2, two seal rings form peak, turn round anxious labyrinth channel, good sealing effect;
3, two seal ring thickness is thin, quality light, saves material;
4, do not need to regularly replace Sealing.
Accompanying drawing explanation
Fig. 1 is that the present invention assembles schematic diagram;
Fig. 2 is the A place enlarged diagram in Fig. 1;
Fig. 3 is the structural representation of stationary seal ring;
Fig. 4 is the structural representation of rotary packing ring.
Embodiment
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is specifically described.Should be appreciated that following word only in order to describe one or more concrete mode of executions of the present invention, considered critical is not carried out to the protection domain that the present invention specifically asks.
The technological scheme that the present invention takes is as Fig. 1, shown in 2, a kind of dicyclo labyrinth seal structure for gear-box, the sealing of dicyclo labyrinth seal structure on gear-box between transparent cover 12 and axis body 11, comprise the rotary packing ring 22 be located at the stationary seal ring of transparent cover 12 exterior edge face Joint and fixed cover on axis body 11, the cross section of stationary seal ring 21 is the first flute profile 211, the cross section of rotary packing ring 22 is the second flute profile 221, first, the notch of two flute profiles is arranged in opposite directions, a cell wall of the first flute profile 211 extends in the second flute profile 221, a cell wall of the second flute profile 221 extends in the first flute profile 211.Axis body 11 is output shafts of gear-box, and transparent cover 12 pairs of axis bodies 11 carry out axially locating and compression, and coordinate stationary seal ring and rotary packing ring to seal.Labyrinth seal structure provided by the invention forms primarily of two seal rings, and rotary packing ring 22 is arranged on axle, rotates during work with axle; Stationary seal ring 21 is arranged in transparent cover 12, during work and transparent cover 12 keep static.During gear-box work, two seal rings relatively rotate, and form peak, turn round anxious labyrinth channel, and when lubricant oil is by this labyrinth channel, local mill inhibition effect is large, and good sealing effect, leaves gap between two seal rings, without wearing and tearing, does not need periodic replacement.
Concrete scheme is, as shown in Figure 2,3, 4, the notch of first and second flute profile is closing in shape.First flute profile 211 is U-shaped, first flute profile 211 carries out turnover formation flanging 212 near the cell wall of axis body 11 to the side away from axis body 11, second flute profile 221 is that angle is arranged near the cell wall of axis body 11 side and the heart yearn of axis body 11, and angle points to static sealing ring side, first flute profile 211 extends in the second flute profile 221 away from the cell wall of axis body 11 side, and the cell wall of the second flute profile 221 near axis body 11 side extends in the first flute profile 211.The groove width of the second flute profile 221 first increases gradually along groove depth direction, after reduce gradually.By the enforcement of above-mentioned concrete mode, its sealing effect is better.
Above-mentioned labyrinth seal structure may be used for the sealing of the high speed shaft of wind turbine gearbox, and rotary packing ring 22 is arranged on high speed shaft, rotates during work with high speed shaft; Stationary seal ring 21 is arranged in transparent cover 12, during work and transparent cover 12 keep static, when wind turbine gearbox works, two seal rings form labyrinth seals, through actual tests checking, have good sealing effect.
The above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; to know in the present invention after contents; under the premise without departing from the principles of the invention; can also make some equal conversion to it and substitute, these convert on an equal basis and substitute and also should be considered as belonging to protection scope of the present invention.
Claims (4)
1. the dicyclo labyrinth seal structure for gear-box, it is characterized in that: the sealing of dicyclo labyrinth seal structure on gear-box between transparent cover and axis body, comprise the rotary packing ring be located at the stationary seal ring of transparent cover exterior edge face Joint and fixed cover on axis body, the cross section of stationary seal ring is the first flute profile, the cross section of rotary packing ring is the second flute profile, the notch of first and second flute profile is arranged in opposite directions, a cell wall of the first flute profile extends in the second flute profile, and a cell wall of the second flute profile extends in the first flute profile.
2. the dicyclo labyrinth seal structure for gear-box according to claim 1, is characterized in that: the notch of first and second flute profile is closing in shape.
3. the dicyclo labyrinth seal structure for gear-box according to claim 1, it is characterized in that: the first flute profile is U-shaped, first flute profile carries out turnover formation flanging near the cell wall of axis body to the side away from axis body, second flute profile is that angle is arranged near the cell wall of axis body side and the heart yearn of axis body, and angle points to static sealing ring side, first flute profile extends in the second flute profile away from the cell wall of axis body side, and the cell wall of the second flute profile near axis body side extends in the first flute profile.
4. the dicyclo labyrinth seal structure for gear-box according to claim 1, is characterized in that: the groove width of the second flute profile first increases gradually along groove depth direction, after reduce gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922122.0A CN105402381A (en) | 2015-12-14 | 2015-12-14 | Dual-ring labyrinth seal structure for gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922122.0A CN105402381A (en) | 2015-12-14 | 2015-12-14 | Dual-ring labyrinth seal structure for gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402381A true CN105402381A (en) | 2016-03-16 |
Family
ID=55468053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510922122.0A Pending CN105402381A (en) | 2015-12-14 | 2015-12-14 | Dual-ring labyrinth seal structure for gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058439A (en) * | 2018-10-30 | 2018-12-21 | 长沙天创粉末技术有限公司 | A kind of planetary ball mill static pressure labyrinth teeth roller box |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005016705A1 (en) * | 2005-04-12 | 2006-10-19 | Schaeffler Kg | Cartridge seal for rail vehicle, has seal carrier ring with elastomer seal, and centrifuge ring, where height constant axial gap is provided between short profile side of simultaneously rotatable centrifuge rings and ring surface of seal |
| CN101344170A (en) * | 2008-04-16 | 2009-01-14 | 大连橡胶塑料机械股份有限公司 | Non-friction mechanical sealing mechanism |
| CN104235329A (en) * | 2013-06-21 | 2014-12-24 | 加特可株式会社 | Sealing structure of automatic transmission |
| CN104455054A (en) * | 2013-09-24 | 2015-03-25 | 本田技研工业株式会社 | Sealing structure for constant-speed coupling |
| CN205226311U (en) * | 2015-12-14 | 2016-05-11 | 南京安维士传动技术股份有限公司 | A dicyclo labyrinth seal structure for gear box |
-
2015
- 2015-12-14 CN CN201510922122.0A patent/CN105402381A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005016705A1 (en) * | 2005-04-12 | 2006-10-19 | Schaeffler Kg | Cartridge seal for rail vehicle, has seal carrier ring with elastomer seal, and centrifuge ring, where height constant axial gap is provided between short profile side of simultaneously rotatable centrifuge rings and ring surface of seal |
| CN101344170A (en) * | 2008-04-16 | 2009-01-14 | 大连橡胶塑料机械股份有限公司 | Non-friction mechanical sealing mechanism |
| CN104235329A (en) * | 2013-06-21 | 2014-12-24 | 加特可株式会社 | Sealing structure of automatic transmission |
| CN104455054A (en) * | 2013-09-24 | 2015-03-25 | 本田技研工业株式会社 | Sealing structure for constant-speed coupling |
| CN205226311U (en) * | 2015-12-14 | 2016-05-11 | 南京安维士传动技术股份有限公司 | A dicyclo labyrinth seal structure for gear box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058439A (en) * | 2018-10-30 | 2018-12-21 | 长沙天创粉末技术有限公司 | A kind of planetary ball mill static pressure labyrinth teeth roller box |
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| 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: 20160316 |
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| RJ01 | Rejection of invention patent application after publication |