CN204201083U - Revolution lip labyrinth gland - Google Patents
Revolution lip labyrinth gland Download PDFInfo
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- CN204201083U CN204201083U CN201420599381.5U CN201420599381U CN204201083U CN 204201083 U CN204201083 U CN 204201083U CN 201420599381 U CN201420599381 U CN 201420599381U CN 204201083 U CN204201083 U CN 204201083U
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- stationary ring
- grease channel
- rotating ring
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Abstract
The utility model provides a kind of revolution lip labyrinth gland, at least comprise stationary ring and cover on the rotating shaft and the rotating ring rotated with the axis, described stationary ring and rotating ring are two-layer stratigraphic structure, described rotating ring and buckle interlaced with stationary ring is connected, between stationary ring and rotating ring, common Formation cross-section is the passage of S shape, described passage has been disposed radially three layers, is respectively grease channel, grease channel isolation and sewage routeway from the inside to the outside; Be provided with in described passage towards the sealing lip of inner bulge, bottom it, be provided with the oil-return groove that leads to Seal cage vertically in described grease channel, bottom it, be provided with one in described sewage routeway vertically lead to extraneous dump tank.The utility model solves deficiency of the prior art, and this device can either prevent the oil leakage in Seal cage, extraneous pollutant can be stoped again to enter Seal cage, its long service life, and applicability is wide simultaneously.
Description
Technical field
The utility model provides running shaft bearing housing or gear box lubricating oil labyrinth gland in a kind of machinery, belongs to seal arrangement technical field.
Background technique
Labyrinth seal is the belt sealing tooth establishing several to be arranged in order around rotatingshaft, forms a series of gap and expansion cavity of damming between tooth and tooth, and sealed medium produces throttle effect when the gap by tortuous labyrinth and reaches the device of the object of Drain Resistance.Owing to there is gap between the rotor of labyrinth seal and casing, without solid contact, and allowed thermal expansion, therefore adapt to the occasion of high temperature, high pressure, high speed-frequency, this seal form is widely used in steam turbine, gas turbine, compressor, the axle head of blower and the sealing of each inter-stage.
In the occasion that some usage requirements are stricter, seal arrangement not only will reach the zero leakage of lubricant oil in Seal cage in use, but also the object preventing extraneous pollutant from entering Seal cage inside will be reached, in addition, also there is higher requirement in working life for Sealing, therefore, provides a kind of sealability very excellent, and the seal arrangement of long perfomance life, becomes related domain problem demanding prompt solution.
Summary of the invention
The utility model provides a kind of revolution lip labyrinth gland, solve the deficiency in background technique, this device can either prevent the oil leakage in Seal cage, and extraneous pollutant can be stoped again to enter Seal cage simultaneously, its long service life, and applicability is wide.
Realizing the technological scheme that the utility model above-mentioned purpose adopts is:
A kind of revolution lip labyrinth gland, at least comprise stationary ring and cover on the rotating shaft and the rotating ring rotated with the axis, stationary ring is mounted by means of bolts on equipment end and covers, described stationary ring is two-layer stratigraphic structure, comprise outer stationary ring, interior stationary ring and the connecting ring A of radial direction that outer stationary ring and interior stationary ring are fixed, three is integral type structure, described connecting ring A is positioned on outer stationary ring and stationary ring near extraneous side, and outer stationary ring is disposed radially the positioning step of a circle towards outer lug, described positioning step is positioned near extraneous side, positioning step is provided with axial bolt hole, positioning step is installed fixing by bolt and equipment end cap,
Described rotating ring is two-layer stratigraphic structure, the connecting ring B of radial direction comprising outer rotating ring, interior rotating ring and outer rotating ring and interior rotating ring are fixed, and three is integral type structure, and described connecting ring B is positioned at the side near Seal cage on outer rotating ring and rotating ring; Described rotating ring and buckle interlaced with stationary ring is connected, its China and foreign countries' rotating ring is between outer stationary ring and interior stationary ring, interior stationary ring is between outer rotating ring and interior rotating ring, between stationary ring and rotating ring, common Formation cross-section is the passage of S shape, described passage has been disposed radially three layers, is respectively grease channel, grease channel isolation and sewage routeway, and grease channel isolation is positioned at middle one deck, Seal cage is led in one end of grease channel, and the external world is led in one end of sewage routeway;
Be provided with in described grease channel, grease channel isolation and sewage routeway towards the sealing lip of inner bulge, described sealing lip is arranged ringwise along rotating ring and stationary ring, and is at least provided with the sealing lip of more than two in every one deck passage;
Bottom it, be provided with the oil-return groove that leads to Seal cage vertically in described grease channel, described oil-return groove is positioned on the inner surface of stationary ring, enters lubricant oil in grease channel under gravity, flows back to Seal cage by oil-return groove; Bottom it, be provided with one in described sewage routeway vertically lead to extraneous dump tank, described dump tank is positioned on the inner surface of outer stationary ring, enters sewage in sewage routeway under gravity, enters the external world by dump tank; Isolation fat is filled with in described grease channel isolation.
In described sealing lip, one end is inwardly sealed end, one end is outwardly connecting end, the width of sealed end is less than the width of connecting end, the connecting end of above-mentioned sealing lip is connected and fixed with the surface of outer stationary ring, outer rotating ring and interior stationary ring respectively, sealed end respectively with outer rotating ring, interior stationary ring and interior dynamic surperficial ring close contact.
Described grease channel, grease channel isolation and sewage routeway distribute from the inside to the outside successively.
Four sealing lips are provided with in described sewage routeway, grease channel isolation and grease channel.
Revolution lip labyrinth gland provided by the utility model has the following advantages: owing to being provided with the passage of S shape between stationary ring and rotating ring, be respectively grease channel, grease channel isolation and sewage routeway, the sealing lip of interference fit is provided with in above-mentioned passage, therefore in use, lubricant oil is difficult to enter grease channel under the iris action of sealing lip, even if there has been parts of lubricating oil to cross, sealing lip enters grease channel, owing to being provided with the oil-return groove that leads to Seal cage vertically in grease channel bottom it, enter lubricant oil in grease channel under gravity, also Seal cage can be flowed back to by oil-return groove, therefore, it is possible to prevent oil leakage completely.Equally, because sealing lip set in sewage routeway can stop sewage, sewage is difficult to enter in sewage routeway equally, even if the sealing lip that had part of contaminated water to cross and enter in sewage routeway, extraneous dump tank is led to owing to being provided with one in sewage routeway bottom it vertically, therefore the sewage entered in sewage routeway under gravity, can enter the external world by dump tank.Be filled with isolation fat in described grease channel isolation, seal gease can come thoroughly isolated between grease channel and sewage routeway, guarantees the perfectly safe of sealing effect.
The revolution lip labyrinth gland long service life that the utility model provides, after employing 2-3, even if the end face of sealing lip weares and teares, after isolated effect reduces, this device can also proceed to use, because under gravitational and centrifugal forces, oil-return groove and dump tank still can play a role, and grease channel and sewage routeway can separate by the isolation fat in grease channel isolation in the same old way.In addition, the revolution lip labyrinth gland that the utility model provides is applicable to the shaft sealing under various occasion, is even also applicable to the sealing of vertical equipment.
Accompanying drawing explanation
The overall structure schematic diagram of the revolution lip labyrinth gland that Fig. 1 provides for the utility model;
Fig. 2 is the structural representation of stationary ring;
In figure: the outer stationary ring of 1-, stationary ring in 2-, 3-connecting ring A, 4-positioning step, the outer rotating ring of 5-, rotating ring in 6-, 7-connecting ring B, 8-grease channel, 9-grease channel isolation, 10-sewage routeway, 11-oil-return groove, 12-dump tank, 13-sealing lip.
Embodiment
Below in conjunction with drawings and the specific embodiments, detailed specific description is done to the utility model, but protection domain of the present utility model is not limited to following examples.
The structure of the revolution lip labyrinth gland that the utility model provides as depicted in figs. 1 and 2, at least comprise stationary ring and cover on the rotating shaft and the rotating ring rotated with the axis, stationary ring is mounted by means of bolts on equipment end and covers, described stationary ring is two-layer stratigraphic structure, comprise outer stationary ring 1, interior stationary ring 2 and the connecting ring A3 of radial direction that outer stationary ring 1 and interior stationary ring 2 are fixed, three is integral type structure, described connecting ring A3 is positioned on outer stationary ring 1 and stationary ring 2 near extraneous side, and outer stationary ring 1 is disposed radially the positioning step 4 of a circle towards outer lug, described positioning step 4 is positioned near extraneous side, positioning step 4 is provided with axial bolt hole, positioning step 4 is installed fixing by bolt and equipment end cap.
Described rotating ring is two-layer stratigraphic structure, the connecting ring B7 of radial direction comprising outer rotating ring 5, interior rotating ring 6 and outer rotating ring 5 and interior rotating ring 6 are fixed, and three is integral type structure, and described connecting ring B7 is positioned at the side near Seal cage on outer rotating ring 5 and rotating ring 6; Described rotating ring and buckle interlaced with stationary ring is connected, its China and foreign countries' rotating ring 5 is between outer stationary ring 1 and interior stationary ring 2, interior stationary ring 2 is between outer rotating ring 5 and interior rotating ring 6, between stationary ring and rotating ring, common Formation cross-section is the passage of S shape, described passage has been disposed radially three layers, be respectively grease channel 8, grease channel isolation 9 and sewage routeway 10 from the inside to the outside, wherein Seal cage is led in one end of grease channel 8, and the external world is led in one end of sewage routeway 10.
Be provided with in described grease channel 8, grease channel isolation 9 and sewage routeway 10 towards the sealing lip 13 of inner bulge, described sealing lip 13 is arranged ringwise along rotating ring and stationary ring, and be provided with four sealing lips 13 in every one deck passage, in described sealing lip, one end is inwardly sealed end, one end is outwardly connecting end, the width of sealed end is less than the width of connecting end, the connecting end of above-mentioned sealing lip is connected and fixed with the surface of outer stationary ring, outer rotating ring and interior stationary ring respectively, sealed end respectively with outer rotating ring, interior stationary ring and interior dynamic surperficial ring close contact.
Bottom it, be provided with the oil-return groove 11 that leads to Seal cage in described grease channel 8 vertically, described oil-return groove 11 is positioned on the inner surface of stationary ring 2, enters lubricant oil in grease channel under gravity, flows back to Seal cage by oil-return groove; Bottom it, be provided with one in described sewage routeway 10 vertically lead to extraneous dump tank 12, described dump tank 12 is positioned on the inner surface of outer stationary ring 1, enters sewage in sewage routeway under gravity, enters the external world by dump tank; Isolation fat is filled with in described grease channel isolation.
In the present embodiment, when the diameter of axle of rotatingshaft is comparatively large or rotating speed is higher, for anti-stop ring and rotatingshaft skid and asynchronous rotation, interior rotating ring outwardly can be extended, so that it is auxiliary fixing or adopt clip to assist to fix to adopt jackscrew to implement at extending part.
Claims (4)
1. a revolution lip labyrinth gland, at least comprise stationary ring and cover on the rotating shaft and the rotating ring rotated with the axis, stationary ring is mounted by means of bolts on equipment end and covers, it is characterized in that: described stationary ring is two-layer stratigraphic structure, comprise outer stationary ring, interior stationary ring and the connecting ring A of radial direction that outer stationary ring and interior stationary ring are fixed, three is integral type structure, described connecting ring A is positioned on outer stationary ring and stationary ring near extraneous side, and outer stationary ring is disposed radially the positioning step of a circle towards outer lug, described positioning step is positioned near extraneous side, positioning step is provided with axial bolt hole, positioning step is installed fixing by bolt and equipment end cap,
Described rotating ring is two-layer stratigraphic structure, the connecting ring B of radial direction comprising outer rotating ring, interior rotating ring and outer rotating ring and interior rotating ring are fixed, and three is integral type structure, and described connecting ring B is positioned at the side near Seal cage on outer rotating ring and rotating ring; Described rotating ring and buckle interlaced with stationary ring is connected, its China and foreign countries' rotating ring is between outer stationary ring and interior stationary ring, interior stationary ring is between outer rotating ring and interior rotating ring, between stationary ring and rotating ring, common Formation cross-section is the passage of S shape, described passage has been disposed radially three layers, is respectively grease channel, grease channel isolation and sewage routeway, and grease channel isolation is positioned at middle one deck, Seal cage is led in one end of grease channel, and the external world is led in one end of sewage routeway;
Be provided with in described grease channel, grease channel isolation and sewage routeway towards the sealing lip of inner bulge, described sealing lip is arranged ringwise along rotating ring and stationary ring, and is at least provided with the sealing lip of more than two in every one deck passage;
Bottom it, be provided with the oil-return groove that leads to Seal cage vertically in described grease channel, described oil-return groove is positioned on the inner surface of stationary ring, enters lubricant oil in grease channel under gravity, flows back to Seal cage by oil-return groove; Bottom it, be provided with one in described sewage routeway vertically lead to extraneous dump tank, described dump tank is positioned on the inner surface of outer stationary ring, enters sewage in sewage routeway under gravity, enters the external world by dump tank; Isolation fat is filled with in described grease channel isolation.
2. revolution lip labyrinth gland according to claim 1, it is characterized in that: in described sealing lip, one end is inwardly sealed end, one end is outwardly connecting end, the width of sealed end is less than the width of connecting end, the connecting end of above-mentioned sealing lip is connected and fixed with the surface of outer stationary ring, outer rotating ring and interior stationary ring respectively, sealed end respectively with outer rotating ring, interior stationary ring and interior dynamic surperficial ring close contact.
3. revolution lip labyrinth gland according to claim 1, is characterized in that: described grease channel, grease channel isolation and sewage routeway distribute from the inside to the outside successively.
4. revolution lip labyrinth gland according to claim 1, is characterized in that: be provided with four sealing lips in described sewage routeway, grease channel isolation and grease channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599381.5U CN204201083U (en) | 2014-10-16 | 2014-10-16 | Revolution lip labyrinth gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599381.5U CN204201083U (en) | 2014-10-16 | 2014-10-16 | Revolution lip labyrinth gland |
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| Publication Number | Publication Date |
|---|---|
| CN204201083U true CN204201083U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420599381.5U Active CN204201083U (en) | 2014-10-16 | 2014-10-16 | Revolution lip labyrinth gland |
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| CN (1) | CN204201083U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315150A (en) * | 2014-10-16 | 2015-01-28 | 武汉新置密封科技有限公司 | Rotary lip labyrinth sealing device |
| CN107524812A (en) * | 2017-08-08 | 2017-12-29 | 东台市岳东橡胶密封件厂 | A kind of embedded rotating ring stationary ring attachment structure |
| WO2018059249A1 (en) * | 2016-09-30 | 2018-04-05 | 桂林端面油封科技有限公司 | Axial lip sealing device for rotating shaft |
| CN110886844A (en) * | 2018-09-10 | 2020-03-17 | 布鲁斯密封***有限公司 | Shaft seal with shaft seal ring |
| CN115108555A (en) * | 2021-10-19 | 2022-09-27 | 天华化工机械及自动化研究设计院有限公司 | Activation furnace top seal structure |
-
2014
- 2014-10-16 CN CN201420599381.5U patent/CN204201083U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315150A (en) * | 2014-10-16 | 2015-01-28 | 武汉新置密封科技有限公司 | Rotary lip labyrinth sealing device |
| WO2018059249A1 (en) * | 2016-09-30 | 2018-04-05 | 桂林端面油封科技有限公司 | Axial lip sealing device for rotating shaft |
| CN107524812A (en) * | 2017-08-08 | 2017-12-29 | 东台市岳东橡胶密封件厂 | A kind of embedded rotating ring stationary ring attachment structure |
| CN110886844A (en) * | 2018-09-10 | 2020-03-17 | 布鲁斯密封***有限公司 | Shaft seal with shaft seal ring |
| CN115108555A (en) * | 2021-10-19 | 2022-09-27 | 天华化工机械及自动化研究设计院有限公司 | Activation furnace top seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171128 Address after: 435300 Qichun County, Hubei Province, Chek Tung Village, Chek Tung town, Qichun County Patentee after: New Polytron Technologies Inc in Hubei Address before: 430000 Hubei Wuhan city East Lake Development Zone, Wuhan University Science Park pioneering Building 2 building Patentee before: WUHAN XINZHI SEAL TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right |