CN204201092U - A kind of bi-directional combination ring gear seal arrangement - Google Patents
A kind of bi-directional combination ring gear seal arrangement Download PDFInfo
- Publication number
- CN204201092U CN204201092U CN201420647948.1U CN201420647948U CN204201092U CN 204201092 U CN204201092 U CN 204201092U CN 201420647948 U CN201420647948 U CN 201420647948U CN 204201092 U CN204201092 U CN 204201092U
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- ring
- chute
- ring gear
- rotating
- rotating ring
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Abstract
The utility model provides a kind of bi-directional combination ring gear seal arrangement, 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, described rotating ring cylindrically, the middle part of rotating ring is provided with protruding stepped portions, jointly form the chamber of an annular between described stationary ring and rotating ring, in chamber, be provided with two ring gears and two floating seal rings; 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 two ring gears, the inner circumference that straight pin is vertically embedded in ring gear 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 ring gear seal arrangement in a kind of machinery, particularly relating to a kind of tooth ring type sealing 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 ring gear and reaches the device of the object of Drain Resistance.Gap is there is between the rotor sealed due to ring gear 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 ring gear 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 a kind of bi-directional combination ring gear seal arrangement, solves the deficiency in background technique, and 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:
A kind of bi-directional combination ring gear seal arrangement, 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; Cylindrically, the middle part of rotating ring is provided with protruding stepped portions to described rotating ring, 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; Stepped portions is positioned at stationary ring, the left side of stepped portions and the end face on right side are provided with annular groove all accordingly, throw-out collar is equipped with in two annular grooves, be respectively throw-out collar A and throw-out collar B, throw-out collar A is positioned at left side, and throw-out collar B is positioned at right side, three equally distributed through holes are at least provided with between the bottom of two annular grooves, two annular grooves are connected by through hole, are provided with spring in through hole, and the two ends of spring withstand on two throw-out collars respectively; The chamber of an annular is jointly formed between described stationary ring and rotating ring, two ring gears and two floating seal rings are provided with in chamber, two described ring gears be enclosed within left section of rotating ring stepped portions respectively and right section upper and contact with stepped portions, wherein be positioned at left section for ring gear A, be positioned at right section for ring gear B, the excircle of ring gear A and ring gear B is provided with flexuose projection, on the stage casing of stepped portions and stationary ring, the inner headed face place corresponding with this position is also provided with flexuose projection, and the projection at above-mentioned two positions is interlaced; Left section of described stepped portions and the excircle of right-hand member are distributed with the chute of at least two, chute in the shape of a spiral, and become 5 ~ 75 ° of angles with the center line of rotatingshaft, be respectively chute A and chute B, the wherein sense of rotation of chute A and the direction of rotation of rotatingshaft, the sense of rotation of chute B and the direction of rotation of chute A;
One end of two ring gears is equipped with the flange extended towards rotating shaft direction, flange to cover respectively on the left side of stepped portions and right side and contacts with throw-out collar, two floating seal rings are all enclosed within rotating ring, be respectively floating seal ring A and floating seal ring B, floating seal ring A is between end cap and ring gear A, and floating seal ring B is between flange and ring gear B;
The straight pin corresponding with the number of chute A is provided with in described ring gear A, straight pin to be vertically embedded in ring gear A and to stretch in chute A, the straight pin corresponding with the number of chute B is provided with in ring gear B, straight pin to be vertically embedded in ring gear B and to stretch in chute B, 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 ring gear A and ring gear B rotate with rotatingshaft and slide to the central direction of rotating ring along chute under chute drives, till the left and right end face withstanding on rotating ring stepped portions until the flange of ring gear 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.
Bi-directional combination ring gear seal arrangement provided by the utility model has the following advantages: 1, when equipment downtime, rotatingshaft rotating speed is reduced to gradually and stops operating, in the process, throw-out collar A and throw-out collar B ejects in the opposite direction gradually by spring under elastic force effect, ring gear A is subject to the active force of throw-out collar A, under this active force, ring gear A slides along chute A, being pressed in gradually on floating seal ring A and extruding floating seal ring A, floating seal ring A is sandwiched in contact and be extruded between the exterior edge face of ring gear A and the interior edge face of end cap and with both ends of the surface and is out of shape and realizes sealing; Ring gear B is subject to the active force of throw-out collar B simultaneously, under this active force, ring gear B slides along chute B, being pressed in gradually on floating seal ring B and extruding floating seal ring B, floating seal ring B is sandwiched in contact and be extruded between the exterior edge face of ring gear B and the interior edge face of flange and with both ends of the surface and is out of shape and realizes sealing.
2, because the left end of rotating ring stretches out in stationary ring, the position of stretching out is provided with at least one bolt hole perpendicular to rotatingshaft, 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 therefore rotatingshaft rotates.When rotating ring rotates with rotatingshaft, straight pin drives ring gear A rotate with rotatingshaft and slide to flange direction along chute A under chute A drives, under chute B drives, drive ring gear B rotate with rotatingshaft and slide to the direction away from flange along chute B, till ring gear A contacts with stepped portions both sides end face respectively with ring gear B, ring gear A and ring gear B jointly by spring compresses in rotating ring.Now floating seal ring A and floating seal ring B is not subject to any extruding, floats in chamber, can not cause wearing and tearing.And the grease now in chamber, under the influence of centrifugal force, to converge in oil storage tank and to be back in equipment grease chamber by outer spill port, can not leakage be produced.3, in the present invention, 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 grease from leaking 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 grease from leaking out between rotatingshaft and rotating ring in radial seal groove.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram that mazy type provided by the invention shuts down bilateral sealing device;
Fig. 2 is the sectional view that mazy type provided by the invention shuts down bilateral sealing device;
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 A, 9-spring, 10-radial direction seal ring, 11-throw-out collar A, 12-Gland, 13-floating seal ring A, 14-straight pin, 15-positioning block, 16-rotating ring, 17-chute B, 18-throw-out collar B, 19-floating seal ring B, 20-ring gear A, 21-ring gear B, 22-flexuose is protruding.
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 overall structure of the bi-directional combination ring gear seal arrangement 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 ring gear and stationary ring, positioning block 15 is removed for subsequent use when sealing device installs.
Stepped portions is positioned at stationary ring, the left side of stepped portions and the end face on right side are provided with annular groove all accordingly, throw-out collar is equipped with in two annular grooves, be respectively throw-out collar A11 and throw-out collar B18, throw-out collar A11 is positioned at left side, and throw-out collar B18 is positioned at right side, three equally distributed through holes are at least provided with between the bottom of two annular grooves, two annular grooves are connected by through hole, are provided with spring 9 in through hole, and the two ends of spring 9 withstand on two throw-out collars respectively.
The chamber of an annular is jointly formed between described stationary ring and rotating ring 16, two ring gears and two floating seal rings are provided with in chamber, two described ring gears be enclosed within left section of rotating ring stepped portions respectively and right section upper and contact with stepped portions, wherein be positioned at left section for ring gear A20, be positioned at right section for ring gear B21, the excircle of ring gear A20 and ring gear B21 is provided with flexuose projection 22, on the stage casing of stepped portions and stationary ring, the inner headed face place corresponding with this position is also provided with flexuose projection 22, and the projection at above-mentioned two positions is interlaced; Left section of described stepped portions and the excircle of right-hand member are distributed with the chute of at least two, chute in the shape of a spiral, and become 5 ~ 75 ° of angles with the center line of rotatingshaft, be respectively chute A8 and chute B17, the wherein sense of rotation of chute A8 and the direction of rotation of rotatingshaft, the sense of rotation of chute B17 and the direction of rotation of chute A8;
One end of two ring gears is equipped with the flange extended towards rotating shaft direction, flange to cover respectively on the left side of stepped portions and right side and contacts with throw-out collar, two floating seal rings are all enclosed within rotating ring 16, be respectively floating seal ring A13 and floating seal ring B19, floating seal ring A13 is between end cap 3 and ring gear A20, and floating seal ring B19 is between flange 1 and ring gear B21;
The straight pin corresponding with the number of chute A8 is provided with in described ring gear A20, straight pin to be vertically embedded in ring gear A and to stretch in chute A, the straight pin corresponding with the number of chute B17 is provided with in ring gear B21, straight pin to be vertically embedded in ring gear B and to stretch in chute B, 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 ring gear A and ring gear B rotate with rotatingshaft and slide to the central direction of rotating ring along chute under chute drives, till the left and right end face withstanding on rotating ring stepped portions until the flange of ring gear cannot continue to slide.
The working principle of the bi-directional combination ring gear seal arrangement that the present embodiment provides is as follows: because the left end of rotating ring stretches out in stationary ring, the position of stretching out is provided with at least one bolt hole perpendicular to rotatingshaft, 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.When rotating ring rotates with rotatingshaft, straight pin drives ring gear A rotate with rotatingshaft and slide to flange direction along chute A under chute A drives, under chute B drives, drive ring gear B rotate with rotatingshaft and slide to the direction away from flange along chute B, till ring gear A contacts with stepped portions both sides end face respectively with ring gear B, ring gear A and ring gear B jointly by spring compresses in rotating ring.Now floating seal ring A and floating seal ring B is not subject to any extruding, floats in chamber, can not cause wearing and tearing.And the grease now in chamber, under the influence of centrifugal force, to converge in oil storage tank and to be back in equipment grease chamber by outer spill port, can not leakage be produced.When equipment downtime, rotatingshaft rotating speed is reduced to gradually and stops operating, in the process, throw-out collar A and throw-out collar B ejects in the opposite direction gradually by spring under elastic force effect, ring gear A is subject to the active force of throw-out collar A, under this active force, ring gear A slides along chute A, to be pressed in gradually on floating seal ring A and to extrude floating seal ring A, and floating seal ring A is sandwiched in contact and be extruded between the exterior edge face of ring gear A and the interior edge face of end cap and with both ends of the surface and is out of shape and realizes sealing; Ring gear B is subject to the active force of throw-out collar B simultaneously, under this active force, ring gear B slides along chute B, being pressed in gradually on floating seal ring B and extruding floating seal ring B, floating seal ring B is sandwiched in contact and be extruded between the exterior edge face of ring gear B 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. a bi-directional combination ring gear seal arrangement, 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, stepped portions is positioned at stationary ring, the left side of stepped portions and the end face on right side are provided with annular groove all accordingly, throw-out collar is equipped with in two annular grooves, be respectively throw-out collar A and throw-out collar B, throw-out collar A is positioned at left side, throw-out collar B is positioned at right side, three equally distributed through holes are at least provided with between the bottom of two annular grooves, two annular grooves are connected by through hole, spring is provided with in through hole, the two ends of spring withstand on two throw-out collars respectively, the chamber of an annular is jointly formed between described stationary ring and rotating ring, two ring gears and two floating seal rings are provided with in chamber, two described ring gears be enclosed within left section of rotating ring stepped portions respectively and right section upper and contact with stepped portions, wherein be positioned at left section for ring gear A, be positioned at right section for ring gear B, the excircle of ring gear A and ring gear B is provided with flexuose projection, on the stage casing of stepped portions and stationary ring, the inner headed face place corresponding with this position is also provided with flexuose projection, and the projection at above-mentioned two positions is interlaced, left section of described stepped portions and the excircle of right-hand member are distributed with the chute of at least two, chute in the shape of a spiral, and become 5 ~ 75 ° of angles with the center line of rotatingshaft, be respectively chute A and chute B, the wherein sense of rotation of chute A and the direction of rotation of rotatingshaft, the sense of rotation of chute B and the direction of rotation of chute A,
One end of two ring gears is equipped with the flange extended towards rotating shaft direction, flange to cover respectively on the left side of stepped portions and right side and contacts with throw-out collar, two floating seal rings are all enclosed within rotating ring, be respectively floating seal ring A and floating seal ring B, floating seal ring A is between end cap and ring gear A, and floating seal ring B is between flange and ring gear B;
The straight pin corresponding with the number of chute A is provided with in described ring gear A, straight pin to be vertically embedded in ring gear A and to stretch in chute A, the straight pin corresponding with the number of chute B is provided with in ring gear B, straight pin to be vertically embedded in ring gear B and to stretch in chute B, 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 ring gear A and ring gear B rotate with rotatingshaft and slide to the central direction of rotating ring along chute under chute drives, till the left and right end face withstanding on rotating ring stepped portions until the flange of ring gear cannot continue to slide.
2. bi-directional combination ring gear seal arrangement according to claim 1, 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. bi-directional combination ring gear seal arrangement according to claim 1, it is characterized in that: the left end of described rotating ring is provided with the bolt hole of at least one radial direction, 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 rotatingshaft rotates.
4. bi-directional combination ring gear seal arrangement according to claim 1, 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 |
|---|---|---|---|
| CN201420647948.1U CN204201092U (en) | 2014-10-31 | 2014-10-31 | A kind of bi-directional combination ring gear seal arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647948.1U CN204201092U (en) | 2014-10-31 | 2014-10-31 | A kind of bi-directional combination ring gear seal arrangement |
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| Publication Number | Publication Date |
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| CN204201092U true CN204201092U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420647948.1U Expired - Fee Related CN204201092U (en) | 2014-10-31 | 2014-10-31 | A kind of bi-directional combination ring gear seal arrangement |
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| CN (1) | CN204201092U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721654A (en) * | 2018-07-13 | 2018-11-02 | 中国检验检疫科学研究院 | A kind of sterilization kettle revolving body support wheel |
| CN109236996A (en) * | 2018-12-05 | 2019-01-18 | 飞翼股份有限公司 | A kind of gear-box |
| CN109322986A (en) * | 2018-12-05 | 2019-02-12 | 飞翼股份有限公司 | A kind of shaft end oil seal structure of gear-box |
-
2014
- 2014-10-31 CN CN201420647948.1U patent/CN204201092U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721654A (en) * | 2018-07-13 | 2018-11-02 | 中国检验检疫科学研究院 | A kind of sterilization kettle revolving body support wheel |
| CN108721654B (en) * | 2018-07-13 | 2024-03-26 | 中国检验检疫科学研究院 | Rotary body supporting wheel of sterilization kettle |
| CN109236996A (en) * | 2018-12-05 | 2019-01-18 | 飞翼股份有限公司 | A kind of gear-box |
| CN109322986A (en) * | 2018-12-05 | 2019-02-12 | 飞翼股份有限公司 | A kind of shaft end oil seal structure of gear-box |
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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: 20171124 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 |
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| CF01 | Termination of patent right due to non-payment of annual fee |