CN204201095U - To slide ring seal in a kind of - Google Patents
To slide ring seal in a kind of Download PDFInfo
- Publication number
- CN204201095U CN204201095U CN201420648101.5U CN201420648101U CN204201095U CN 204201095 U CN204201095 U CN 204201095U CN 201420648101 U CN201420648101 U CN 201420648101U CN 204201095 U CN204201095 U CN 204201095U
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- ring
- chute
- rotating ring
- flange
- rotating
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Abstract
The utility model provides a kind of interior to slide ring seal, 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 made up of flange, sleeve and end cap, be bolted to connection between three, cylindrically, the middle part of rotating ring is provided with protruding stepped portions to described rotating ring, jointly form the chamber of an annular between described stationary ring and rotating ring, in chamber, be provided with slip ring and floating seal ring; The excircle of the stepped portions of described rotating ring is evenly distributed with chute, chute in the shape of a spiral, be provided with straight pin in slip ring, the inner circumference that straight pin is vertically embedded in slip ring stretches in chute, and straight pin and chute are worked in coordination and straight pin can slide along groove in chute.The device that the utility model provides automatically can seal under equipment downtime state, thus stops grease by the gap between rotating ring and stationary ring to external leakage.
Description
Technical field
The utility model provides running shaft bearing housing or gear box lubricating oil slide ring seal in a kind of machinery, particularly relating to a kind of slip-ring seal device that can at once seal when shutting down, belonging to seal arrangement technical field.
Background technique
Labyrinth seal is the ring packing 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 slip ring and reaches the device of the object of Drain Resistance.Owing to there is gap between the rotor of bearing ring 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.
Labyrinth seal in existing market, when normal fuel injection and normal rotation, generally there will not be oil leak, this is because under rotary state, lubricant oil relies on running shaft centrifugal action to be sealed in the oil storage tank of slip ring completely.But shut down or start process in, often can produce oil leakage, this is because equipment in the running, just can fuel cut-off after must first shutting down, and must first fuel feeding before start.And after a shutdown with start before, because equipment is in halted state, cause rely on centrifugal force realize sealing labyrinth seal then lose sealing function completely, lubricant oil flows out from the gap location of stators and rotators.For above-mentioned situation, also there is no any solution in the market, generally can only let alone to leak, so not only create waste, and befouling environment.
Summary of the invention
The utility model provides to slide ring seal in one, and solve the deficiency in background technique, this device automatically can seal under equipment downtime state, thus stops lubricant oil by the gap between rotating ring and stationary ring to external leakage.
Realizing the technological scheme that the utility model above-mentioned purpose adopts is:
To slide ring seal in a kind of, 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, and described stationary ring is made up of flange, sleeve and end cap, is bolted to connection between three, described rotating ring cylindrically, the middle part of rotating ring is provided with protruding stepped portions, the right-hand member of rotating ring in flange and and have gap between flange, the left end of rotating ring is stretched out by the central hole of end cap, and be provided with packing cavity between the two, be filled with stuffing box packing in described packing cavity, the opening of packing cavity be provided with Gland by its closure of openings, stepped portions is positioned at stationary ring, the end face on the right side of stepped portions is provided with annular groove, throw-out collar is provided with in annular groove, three spring eyes are evenly distributed with at least vertically in the bottom of annular groove, be provided with spring in described spring eye, one end of spring is stretched out and is withstood on throw-out collar from spring eye, the chamber of an annular is jointly formed between described stationary ring and rotating ring, slip ring and floating seal ring is provided with in chamber, described slip ring sleeve is in rotating ring stepped portions and contact with rotating ring stepped portions, one end of slip ring is provided with towards rotating shaft direction extension and maintains the flange in gap with rotating ring periphery, the right side that flange covers the stepped portions of rotating ring contacts with throw-out collar, floating seal ring is enclosed within rotating ring, and between flange outer end face and flange interior edge face, when rotatingshaft remains static, floating seal ring contacts with the exterior edge face of flange and the interior edge face of flange respectively and is extruded and is out of shape and realizes sealing under the effect of the axial elastic force of spring, the excircle of the stepped portions of described rotating ring is evenly distributed with the chute of more than two, one end of the stepped portions of chute driven torus extends to the other end, chute in the shape of a spiral, and become 5 ~ 75 ° of angles with the center line of rotatingshaft, the sense of rotation of chute and the direction of rotation of rotatingshaft, the straight pin corresponding with the number of chute is provided with in slip ring, straight pin to be vertically embedded in slip ring and to stretch in chute, straight pin and chute are worked in coordination and straight pin can slide along groove in chute, when rotating ring rotates with rotatingshaft, straight pin drives slip ring rotate with rotatingshaft and slide to end cap direction along chute under chute drives, till the end face withstanding on rotating ring stepped portions until the flange of slip ring cannot continue to slide.
The bottom surface contacted with equipment end cap in described stationary ring is provided with the axial seal groove of annular, is provided with axial sealing ring in axial seal groove.
The left end of described rotating ring is provided with the bolt hole of at least one radial direction, is provided with jackscrew in bolt hole, and rotating ring is fixed on the rotating shaft by the top, top of jackscrew on the rotating shaft, drives rotating ring to rotate when rotatingshaft rotates.
The inner ring surface contacted with rotatingshaft in described rotating ring is provided with the radial seal groove of annular, is provided with radial direction seal ring in radial seal groove.
Provided by the utility modelly interiorly to have the following advantages to slide ring seal: 1, because the left end of rotating ring is provided with at least one radial bolts hole, in bolt hole, jackscrew is installed, rotating ring is fixed on the rotating shaft by the top, top of jackscrew on the rotating shaft, drives rotating ring to rotate when therefore rotatingshaft rotates.The excircle of the stepped portions of rotating ring is evenly distributed with the chute of more than two, one end of the stepped portions of chute driven torus extends to the other end, chute in the shape of a spiral, and become 5 ~ 75 ° of angles with the center line of rotatingshaft, the sense of rotation of chute and the direction of rotation of rotatingshaft, be provided with the straight pin corresponding with the number of chute in slip ring, straight pin to be vertically embedded in slip ring and to stretch in chute, and straight pin and chute are worked in coordination and straight pin can along slide in chute.Therefore, when rotating ring rotates with rotatingshaft, straight pin drives slip ring rotate with rotatingshaft and slide to end cap direction along chute under chute drives, till the end face withstanding on rotating ring stepped portions until the flange of slip ring cannot continue to slide.Now floating seal ring is not subject to the extruding of flange and flange, floats in chamber, can not cause wearing and tearing.And the lubricant oil now in chamber, under the influence of centrifugal force, converge in the oil storage tank between slip ring and stationary ring, can not leakage be produced.2, when equipment downtime; rotatingshaft rotating speed is reduced to gradually and stops operating; in the process; throw-out collar ejects towards flange direction gradually by spring under elastic force effect; flange is subject to the active force of throw-out collar; under this active force, slip ring is along slide, to be pressed in gradually on floating seal ring and to extrude floating seal ring, and floating seal ring is sandwiched in contact and be extruded between the exterior edge face of flange and the interior edge face of flange and with both ends of the surface and is out of shape and realizes sealing.3, in the utility model, because the bottom surface contacted with equipment end cap in stationary ring is provided with the axial seal groove of annular, axial sealing ring is provided with in axial seal groove, therefore, it is possible to prevent lubricant oil from leaking out between stationary ring and equipment end cap.4, the inner ring surface contacted with rotatingshaft in rotating ring is provided with the radial seal groove of annular, is provided with radial direction seal ring, therefore, it is possible to prevent lubricant oil from leaking out between rotatingshaft and rotating ring in radial seal groove.
Accompanying drawing explanation
Fig. 1 for the utility model provide in the overall structure schematic diagram of slide ring seal;
Fig. 2 is the left view of Fig. 1;
In figure: 1-flange, 2-sleeve, 3-end cap, 4-axial sealing ring, the outer spill port of 5-, 6-stuffing box packing, 7-jackscrew, 8-chute, 9-spring, 10-radial direction seal ring, 11-throw-out collar, 12-Gland, 13-floating seal ring, 14-slip ring, 15-positioning block, 16-rotating ring.
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 interior overall structure to slide ring seal provided in the present embodiment as depicted in figs. 1 and 2, at least comprise stationary ring and cover on the rotating shaft and the rotating ring 16 rotated with the axis, the inner ring surface contacted with rotatingshaft in rotating ring 16 is provided with the radial seal groove of annular, be provided with radial direction seal ring 10 in radial seal groove, can prevent lubricant oil from leaking out between rotatingshaft and rotating ring 16.
Stationary ring is mounted by means of bolts on equipment end and covers, and described stationary ring is made up of flange 1, sleeve 2 and end cap 3, is bolted to connection between three; Outer spill port 5 is provided with bottom described stationary ring.The face contacted with equipment end cap in stationary ring is provided with the axial seal groove of annular, is provided with axial sealing ring 4, can prevents lubricant oil from leaking out between stationary ring and equipment end cap 3 in axial seal groove.
Described rotating ring 16 cylindrically, the middle part of rotating ring 16 is provided with protruding stepped portions, the right-hand member of rotating ring 16 in flange 1 and and have gap between flange 1, the left end of rotating ring 16 is stretched out by the central hole of end cap 3, and be provided with packing cavity between the two, be filled with stuffing box packing 6 in described packing cavity, the opening of packing cavity be provided with Gland 12 by its closure of openings.The left end of described rotating ring is provided with the bolt hole of at least one radial direction, is provided with jackscrew 7 in bolt hole, and rotating ring 16 is fixed on the rotating shaft by the top, top of jackscrew 7 on the rotating shaft, drives rotating ring 16 to rotate when rotatingshaft rotates.In the installation process of this device, by bolt hole, positioning block 15 is installed, one end of positioning block 15 is arranged in gap, and to ensure to keep rational axial clearance between rotating ring 16 and slip ring 14 and stationary ring, positioning block 15 is removed for subsequent use when sealing device installs.
Described stepped portions is positioned at stationary ring, and the end face on the right side of stepped portions is provided with annular groove, is provided with throw-out collar 11 in annular groove, is evenly distributed with three spring eyes in the bottom of annular groove at least vertically, is provided with five spring eyes in the present embodiment.Be provided with spring 9 in described spring eye, one end of spring 9 is stretched out and is withstood on throw-out collar 11 from spring eye.
The chamber of an annular is jointly formed between described stationary ring and rotating ring 16, slip ring 14 and floating seal ring 13 is provided with in chamber, the stepped portions that described slip ring 14 is enclosed within rotating ring contacts with the stepped portions of rotating ring, one end of slip ring 14 is provided with towards rotating shaft direction extension and maintains the flange in gap with rotating ring periphery, the right side that flange covers the stepped portions of rotating ring contacts with throw-out collar 11, floating seal ring 13 is enclosed within rotating ring, and between flange outer end face and flange interior edge face, when rotatingshaft remains static, floating seal ring contacts with the exterior edge face of flange and the interior edge face of flange respectively and is extruded and is out of shape and realizes sealing under the effect of the axial elastic force of spring.
The excircle of the stepped portions of described rotating ring 16 is evenly distributed with the chute 8 of more than two, is provided with three chutes 8 in the present embodiment.One end of the stepped portions of chute 8 driven torus extends to the other end, and chute 8 in the shape of a spiral, and becomes 5 ~ 75 ° of angles with the center line of rotatingshaft, the sense of rotation of chute and the direction of rotation of rotatingshaft.
The straight pin corresponding with the number of chute 8 is provided with in slip ring 14, straight pin to be vertically embedded in slip ring and to stretch in chute 8, straight pin and chute are worked in coordination and straight pin can slide along groove in chute, when rotating ring 16 rotates with the axis, straight pin drives slip ring rotate with rotatingshaft and slide to end cap direction along chute under chute drives, till the end face withstanding on rotating ring stepped portions until the flange of slip ring cannot continue to slide.
The interior working principle to slide ring seal that the present embodiment provides is as follows: the left end due to rotating ring is provided with at least one radial bolts hole, in bolt hole, jackscrew is installed, rotating ring is fixed on the rotating shaft by the top, top of jackscrew on the rotating shaft, drives rotating ring to rotate when therefore rotatingshaft rotates.The excircle of the stepped portions of rotating ring is evenly distributed with the chute of more than two, one end of the stepped portions of chute driven torus extends to the other end, chute in the shape of a spiral, and become 5 ~ 75 ° of angles with the center line of rotatingshaft, the sense of rotation of chute and the direction of rotation of rotatingshaft, be provided with the straight pin corresponding with the number of chute in slip ring, straight pin to be vertically embedded in slip ring and to stretch in chute, and straight pin and chute are worked in coordination and straight pin can along slide in chute.Therefore, when rotating ring rotates with rotatingshaft, straight pin drives slip ring rotate with rotatingshaft and slide to end cap direction along chute under chute drives, till the end face withstanding on rotating ring stepped portions until the flange of slip ring cannot continue to slide.Now floating seal ring is not subject to the extruding of flange and flange, floats in chamber, can not cause wearing and tearing.And the lubricant oil now in chamber, under the influence of centrifugal force, converge in the oil storage tank between rotating ring and stationary ring, can not leakage be produced.When equipment downtime; rotatingshaft rotating speed is reduced to gradually and stops operating; in the process; throw-out collar ejects towards flange direction gradually by spring under elastic force effect; flange is subject to the active force of throw-out collar; under this active force, slip ring is along slide, to be pressed in gradually on floating seal ring and to extrude floating seal ring, and floating seal ring is sandwiched in contact and be extruded between the exterior edge face of flange and the interior edge face of flange and with both ends of the surface and is out of shape and realizes sealing.
Claims (4)
1. an introversive slide ring seal, 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, and it is characterized in that: described stationary ring is made up of flange, sleeve and end cap, is bolted to connection between three, described rotating ring cylindrically, the middle part of rotating ring is provided with protruding stepped portions, the right-hand member of rotating ring in flange and and have gap between flange, the left end of rotating ring is stretched out by the central hole of end cap, and be provided with packing cavity between the two, be filled with stuffing box packing in described packing cavity, the opening of packing cavity be provided with Gland by its closure of openings, stepped portions is positioned at stationary ring, the end face on the right side of stepped portions is provided with annular groove, throw-out collar is provided with in annular groove, three spring eyes are evenly distributed with at least vertically in the bottom of annular groove, be provided with spring in described spring eye, one end of spring is stretched out and is withstood on throw-out collar from spring eye, the chamber of an annular is jointly formed between described stationary ring and rotating ring, slip ring and floating seal ring is provided with in chamber, described slip ring sleeve is in rotating ring stepped portions and contact with rotating ring stepped portions, one end of slip ring is provided with towards rotating shaft direction extension and maintains the flange in gap with rotating ring periphery, the right side that flange covers the stepped portions of rotating ring contacts with throw-out collar, floating seal ring is enclosed within rotating ring, and between flange outer end face and flange interior edge face, when rotatingshaft remains static, floating seal ring contacts with the exterior edge face of flange and the interior edge face of flange respectively and is extruded and is out of shape and realizes sealing under the effect of the axial elastic force of spring, the excircle of the stepped portions of described rotating ring is evenly distributed with the chute of more than two, one end of the stepped portions of chute driven torus extends to the other end, chute in the shape of a spiral, and become 5 ~ 75 ° of angles with the center line of rotatingshaft, the sense of rotation of chute and the direction of rotation of rotatingshaft, the straight pin corresponding with the number of chute is provided with in slip ring, straight pin to be vertically embedded in slip ring and to stretch in chute, straight pin and chute are worked in coordination and straight pin can slide along groove in chute, when rotating ring rotates with rotatingshaft, straight pin drives slip ring rotate with rotatingshaft and slide to end cap direction along chute under chute drives, till the end face withstanding on rotating ring stepped portions until the flange of slip ring cannot continue to slide.
2. according to claim 1 interior to slide ring seal, it is characterized in that: the bottom surface contacted with equipment end cap in described stationary ring is provided with the axial seal groove of annular, is provided with axial sealing ring in axial seal groove.
3. according to claim 1 interior to slide ring seal, it is characterized in that: the left end of described rotating ring is provided with the bolt hole of at least one radial direction, be provided with jackscrew in bolt hole, rotating ring is fixed on the rotating shaft by the top, top of jackscrew on the rotating shaft, drives rotating ring to rotate when rotatingshaft rotates.
4. according to claim 1 interior to slide ring seal, it is characterized in that: the inner ring surface contacted with rotatingshaft in described rotating ring is provided with the radial seal groove of annular, is provided with radial direction seal ring in radial seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648101.5U CN204201095U (en) | 2014-10-31 | 2014-10-31 | To slide ring seal in a kind of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648101.5U CN204201095U (en) | 2014-10-31 | 2014-10-31 | To slide ring seal in a kind of |
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| Publication Number | Publication Date |
|---|---|
| CN204201095U true CN204201095U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420648101.5U Expired - Fee Related CN204201095U (en) | 2014-10-31 | 2014-10-31 | To slide ring seal in a kind of |
Country Status (1)
| Country | Link |
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| CN (1) | CN204201095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-10-31 CN CN201420648101.5U patent/CN204201095U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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: 20171127 Address after: 435300 Qichun County, Hubei Province, Chek Tung Village, Chek Tung town, Qichun County Patentee after: HUBEI XINZHI TECHNOLOGY CO.,LTD. Address before: No. 435300 Huanggang Road, Hubei County in Qichun Province Yang Si Ling Industrial Park, energy-saving lamps Patentee before: HUBEI XINZHI SEALS CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20211031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |