CN203395062U - Corrugated spring and floating-ring sealing device provided with same - Google Patents
Corrugated spring and floating-ring sealing device provided with same Download PDFInfo
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- CN203395062U CN203395062U CN201320367958.5U CN201320367958U CN203395062U CN 203395062 U CN203395062 U CN 203395062U CN 201320367958 U CN201320367958 U CN 201320367958U CN 203395062 U CN203395062 U CN 203395062U
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- ring
- transmission shaft
- elastic sheet
- ripple spring
- sealing device
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Abstract
The utility model provides a corrugated spring and a floating-ring sealing device provided with the same. The corrugated spring is formed by connecting a first elastic sheet with a second elastic sheet end to end, wherein the first elastic sheet and the second elastic sheet are wound in a Chinese doughnut shape. The corrugated spring is simple in structure, convenient in processing, applicable to a high-temperature environment and long in service life. The utility model further provides a floating-ring sealing device which comprises a sealing socket, wherein the sealing socket is sleeved on a transmission shaft and is in a flange plate shape; an inwardly-dished ring groove is formed in the middle of the end face of one end of the sealing socket; the floating-ring sealing device further comprises a floating ring which is sleeved on the transmission shaft and is arranged inside the ring groove, a locking plate which is sleeved on the transmission shaft and fixedly arranged outside the ring groove, and the corrugated spring which is sleeved on the transmission shaft and is arranged between the floating ring and the locking plate. The floating-ring sealing device is simple in structure, easy to install, small in required installation space, compact in structure, reliable in seal, high in security, applicable to a high-temperature environment and long in service life.
Description
Technical field
The utility model relates to the field of locating technology of floating-ring seal, especially, relates to a kind of ripple spring.In addition, the utility model also relates to a kind of float-ring sealing device that is equiped with above-mentioned ripple spring.
Background technique
Float-ring sealing device is a kind of contactless fluid seal apparatus, be installed on transmission shaft and obturage in order to transmission shaft is carried out to fluid type, its generally comprise sealing seat, floating ring and to floating ring along the spacing stop component of the axial direction of transmission shaft, wherein, floating ring and transmission shaft form little Spielpassung, by the fluid resistance effect in seal clearance, reach the object of obturaging.Floating ring in float-ring sealing device can produce radial and axial displacement with transmission shaft run-out and axle center whirling motion, but the axial freedom of floating ring need to limit to a certain extent, otherwise can cause that floating ring and transmission shaft collide, not only cannot effectively obturage, also likely damage floating ring.
In prior art, the Position Design of floating ring is generally an axial side and realizes axial limiting by leaning against on the inner side end of sealing seat, the opposite side of floating ring adopts stop design, and means of retention generally comprises following several: 1, adopt sprue (as back-up ring or pad) to block the assemblage gap between sealing seat and transmission shaft; 2, between sealing seat and transmission shaft, compress rubber o-ring; 3, between sealing seat and transmission shaft, helical spring is set.
When adopting the first means of retention; owing to there is no pretightening force between sprue and floating ring; in the time of can only relying on the buoyancy of the fluid film forming between floating ring and axle center to guarantee work, floating ring does not contact with axle center; the buoyancy of fluid film is relevant with the density of fluid; if obturaged, the density of fluid is too little; be difficult to form enough buoyancy and prop up floating ring, thereby be only applicable to hydraulic seal; When adopting the second means of retention, because rubber o-ring can not be for high temperature condition, and easily loss at work, therefore rubber o-ring is short general working life, need to often change, increase cost of production; When adopting the third means of retention, need to increase extra structure in order to fixing helical spring, make complicated integral structure, and helical spring compacting height restriction its application area.
Model utility content
The utility model aim to provide a kind of simple in structure, easy to process, can be applied to environment that temperature is higher and the ripple spring of long service life; Also provide a kind of simple in structure, be easy to installing, little, the compact structure of required installing space, sealing reliable, safe, can be applied to environment that temperature is higher and the float-ring sealing device of long service life, with solve the sealing that existing float-ring sealing device exists unreliable, be not suitable with that high temperature condition, working life are short, complex structure, technical problem that cost of production is high.
For achieving the above object, the utility model provides a kind of ripple spring, and ripple spring is formed by the first elastic sheet and the second elastic sheet end-to-end, and the first elastic sheet and the second elastic sheet are twisted shape and are wound around.
Further, the first elastic sheet and the second elastic sheet are arranged symmetrically with about the line of its end-to-end point, and the first elastic sheet is sinusoidal waveform in the projection of crossing the horizontal plane of line, and the second elastic sheet is cosine waveform in the projection of crossing horizontal plane.
Further, sinusoidal waveform comprises two crests and a trough, and described cosine waveform comprises two troughs and a crest.
Further, ripple spring is by the moulding of punching equipment integrated punching.
According on the other hand of the present utility model, a kind of float-ring sealing device is also provided, be installed on transmission shaft and obturage in order to transmission shaft is carried out to fluid type; comprise: sealing seat; be sheathed on transmission shaft, and the end face middle part that is flange plate-like ，Qi one end is processed with the annular groove of indent; Floating ring, is sheathed on transmission shaft, and is installed in the inner side of annular groove; Locking plate, is sheathed on transmission shaft, and is fixedly arranged on the outside of annular groove; And ripple spring described above, be sheathed on transmission shaft, and be arranged between floating ring and locking plate.
Further, between floating ring and ripple spring, be also provided with pad, pad is sheathed on transmission shaft, and the internal ring wall of its external annulus and annular groove is close to.
Further, the external annulus of pad is provided with protruding tongue, offers the straight trough along its Axis Extension on the internal ring wall of annular groove, and protruding tongue is arranged in straight trough.
Further, also offer all grooves of vertical straight trough on the internal ring wall of annular groove, locking plate is arranged in all grains.
Further, floating ring comprise graphite annulus and be sheathed on graphite annulus outer and with the friction tight steel bushing of graphite annulus, the both sides of graphite annulus respectively with inner side and the pad butt of annular groove.
Further, the two internal diameter of pad, ripple spring and locking plate is equal to or is greater than the internal diameter of floating ring.
The utlity model has following beneficial effect:
According to ripple spring of the present utility model, simple in structure, easy to process, can be applied to the float-ring sealing device that environment that temperature is higher and long service life are equiped with this ripple spring, compared to existing technology, simple in structure, be easy to installing; Highly low, the required installing space of the compacting of ripple spring is little; therefore can be applicable to the installation of the shorter chamber of axial distance; after installing, make the length of whole seal arrangement on axial direction very short; compact structure, sealing are reliably; can also reduce vibration and the axial float of floating ring; reduce operating noise, extend the working life of seal arrangement, improve the Security of seal arrangement; And ripple spring has can be applied to the advantages such as environment that temperature is higher and long service life, therefore be equiped with the float-ring sealing device of this ripple spring, have too and can be applied to the advantages such as environment that temperature is higher and long service life.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the main TV structure schematic diagram according to ripple spring of the present utility model;
Fig. 2 is the left TV structure schematic diagram of Fig. 1;
Fig. 3 is the broken section structural representation according to float-ring sealing device of the present utility model;
Fig. 4 is the right TV structure schematic diagram of Fig. 3;
Fig. 5 is the main TV structure schematic diagram of the pad in Fig. 3; And
Fig. 6 is the main TV structure schematic diagram of the locking plate in Fig. 3.
Marginal data
1, sealing seat; 11, annular groove; 12, mounting hole; 2, floating ring; 21, graphite annulus; 22, steel bushing; 3, pad; 31, protruding tongue; 4, ripple spring; 5, locking plate; 10, straight trough; 20, all grooves.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As depicted in figs. 1 and 2, ripple spring of the present utility model is formed by the first elastic sheet and the second elastic sheet end-to-end, and the first elastic sheet and the second elastic sheet are twisted shape and are wound around.According to ripple spring of the present utility model, sprue, rubber o-ring and helical spring in compared to existing technology, its have simple in structure, easy to process, can be applied to the advantages such as environment that temperature is higher and long service life.
Particularly, the line of the first elastic sheet and the second elastic sheet both end-to-end points about it is arranged symmetrically with, the first elastic sheet is sinusoidal waveform in the projection of crossing the horizontal plane of this line, the second elastic sheet is cosine waveform in the projection of crossing this horizontal plane, and in the projection of this horizontal plane, first crest of bullet part thin slice and the trough of the second elastic sheet are arranged symmetrically with about the line of the two end-to-end point, and the crest of the trough of the first elastic sheet and the second elastic sheet is arranged symmetrically with about this line equally.
In the present embodiment, as shown in Figure 1, be sine-shaped the first elastic sheet and comprise two crests and a trough, the second elastic sheet that is cosine waveform comprises two troughs and a crest.
Preferably, ripple spring of the present utility model is established each integrated punching moulding by punching press, and processing is simple, and join strength is high; Ripple spring after impact briquetting passes through tempering operation again, can reach the intensity of design or job requirement, under working state, the decrement of ripple spring is controlled within the scope of the linear deformation of ripple spring, and the span of ripple amount of spring compression is by calculating.
As shown in Figure 3 and Figure 4; the utility model also comprises a kind of float-ring sealing device; be installed on transmission shaft and obturage in order to transmission shaft is carried out to fluid type; it comprises: be sheathed on transmission shaft and be the sealing seat 1 of flange plate-like, the end face middle part of wherein one end of sealing seat 1 is also processed with the annular groove 11 concaving; Device also comprises floating ring 2, and this floating ring 2 is sheathed on transmission shaft, and is installed in the inner side of annular groove 11; Device also comprises locking plate 5, and this locking plate 5 is sheathed on transmission shaft, and is fixedly arranged on the outside of annular groove 11; Device also comprises ripple spring 4 described above, and ripple spring 4 is sheathed on transmission shaft, and is arranged between floating ring 2 and locking plate 5.According to float-ring sealing device of the present utility model; one side of floating ring 2 and the inner side butt of annular groove 11; the opposite side of floating ring 2 is by locking plate 5 and ripple spring 4 butts; because locking plate 5 is fixedly arranged on the outside of annular groove 11; therefore floating ring 2 is located between the inner side and ripple spring 4 of annular groove 11; again because ripple spring 4 has certain elasticity; thereby floating ring 2 has obtained restriction to a certain extent along the degrees of freedom of drive shaft axis direction; avoid floating ring 2 and transmission shaft to collide, realized effectively obturaging to transmission shaft; Several means of retention to floating ring 2 compared to existing technology, the utility model adopts ripple spring 4 and locking plate 5 can realize the stop to floating ring 2, simple in structure, and is easy to installing; Ripple spring 4 is compared helical spring; highly low, the required installing space of its compacting is little; therefore can be applicable to the installation of the shorter chamber of axle base; after installing, make the length of whole seal arrangement on axial direction very short; compact structure, sealing reliably, can also reduce vibration and the axial float of floating ring 2, reduce operating noise; extend the working life of seal arrangement, improve the Security of seal arrangement; Again because ripple spring 4 has advantages such as can being applied to environment that temperature is higher and long service life, therefore be equiped with the float-ring sealing device of this ripple spring 4, there is too advantages such as can being applied to environment that temperature is higher and long service life.
Further, as shown in Figure 4 and Figure 5, between floating ring 2 and ripple spring 4, be also provided with pad 3, pad 3 is sheathed on transmission shaft, and the internal ring wall of the external annulus of pad 3 and annular groove 11 is close to, one side of floating ring 2 and the inner side butt of annular groove 11, the opposite side of floating ring 2 and pad 3 butts, due to pad 3 and annular groove 11 drive fits, therefore floating ring 2 is further limited along the degrees of freedom of drive shaft axis direction, avoided floating ring 2 and transmission shaft to collide, thereby further transmission shaft has effectively been obturaged.
Preferably, as shown in Figure 5, the external annulus of pad 3 is provided with outwardly protruding tongue 31, on the internal ring wall of annular groove 11, offer the straight trough 10 along its Axis Extension, protruding tongue 31 is arranged in straight trough 10, pad 3 not only can coordinate more closely with annular groove 11, and pad 3 is also limited along the rotation of transmission shaft contour direction, and then more stably to floating ring 2, carries out spacing.
Further, as shown in Figure 4 and Figure 6, on the internal ring wall of annular groove 11, also offer all grooves 20 of vertical straight trough 10, locking plate 5 is arranged in all grooves 20, because locking plate 5 has elasticity, therefore while installing, in the time of only need making to act on power on locking plate 5 and make locking plate 5 be set on transmission shaft, it shortens at transmission shaft height radially, the edge card of locking plate 5 can be located in all grooves 20, thereby be made stable being installed on transmission shaft of locking plate 5.
Again further, as shown in Figure 3, be processed with mounting hole 12 on the flange of sealing seat 1, the links such as bolt, through after mounting hole 12, are fixedly arranged on sealing seat 1 on the casing of motor.
As shown in Figure 1, floating ring 2 of the present utility model comprise graphite annulus 21 and be sheathed on graphite annulus 21 outer and with the friction tight steel bushing 22 of graphite annulus 21, graphite annulus 21 both sides respectively with inner side and pad 3 butts of annular groove 11, the active force of ripple spring 4 passes to graphite annulus 21 by pad 3, thereby make graphite annulus 21 make progress in its week stressed evenly, be convenient to better transmission shaft be sealed.
Preferably, pad 3, ripple spring 4 and locking plate 5 threes' internal diameter is equal to or is greater than the internal diameter of floating ring 2.Float-ring sealing device is the fluid resistance effect in the gap of obturaging relying between floating ring and rotating shaft and produce the effect of obturaging, and therefore when design, minimum diameter should be at floating ring place.In addition, working state lower rotary shaft has axial runout by a small margin, and for avoiding pad 3, locking plate 5 or ripple spring 4 to touch mill with rotating shaft, three's internal diameter need be greater than the internal diameter of floating ring 2.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
According to ripple spring of the present utility model, simple in structure, easy to process, can be applied to environment and long service life that temperature is higher; Be equiped with the float-ring sealing device of this ripple spring, compared to existing technology, adopt ripple spring and locking plate can realize the stop to floating ring, simple in structure, be easy to installing; Ripple spring is compared helical spring; highly low, the required installing space of its compacting is little; therefore can be applicable to the installation of the shorter chamber of axial distance; after installing, make the length of whole seal arrangement on axial direction very short; compact structure, sealing reliably, can also reduce vibration and the axial float of floating ring, reduce operating noise; extend the working life of seal arrangement, improve the Security of seal arrangement; And ripple spring has can be applied to the advantages such as environment that temperature is higher and long service life, therefore be equiped with the float-ring sealing device of this ripple spring, have too and can be applied to the advantages such as environment that temperature is higher and long service life.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a ripple spring, is characterized in that, described ripple spring is formed by the first elastic sheet and the second elastic sheet end-to-end, and described the first elastic sheet and described the second elastic sheet are twisted shape and are wound around.
2. ripple spring according to claim 1, it is characterized in that, described the first elastic sheet and described the second elastic sheet are arranged symmetrically with about the line of its end-to-end point, described the first elastic sheet is sinusoidal waveform in the projection of crossing the horizontal plane of described line, and described the second elastic sheet is cosine waveform in the projection of crossing the horizontal plane of described line.
3. ripple spring according to claim 2, is characterized in that, described sinusoidal waveform comprises two crests and a trough, and described cosine waveform comprises two troughs and a crest.
4. ripple spring according to claim 3, is characterized in that, described ripple spring is by the moulding of punching equipment integrated punching.
5. a float-ring sealing device, is installed on transmission shaft and obturages in order to described transmission shaft is carried out to fluid type, it is characterized in that, comprising:
Sealing seat (1), is sheathed on described transmission shaft, and the end face middle part that is flange plate-like ，Qi one end is processed with the annular groove (11) of indent;
Floating ring (2), is sheathed on described transmission shaft, and is installed in the inner side of described annular groove (11);
Locking plate (5), is sheathed on described transmission shaft, and is fixedly arranged on the outside of described annular groove (11); And
Ripple spring (4) as described in any one in claim 1 to 4, is sheathed on described transmission shaft, and is arranged between described floating ring (2) and described locking plate (5).
6. float-ring sealing device according to claim 5, it is characterized in that, between described floating ring (2) and described ripple spring (4), be also provided with pad (3), described pad (3) is sheathed on described transmission shaft, and the internal ring wall of its external annulus and described annular groove (11) is close to.
7. float-ring sealing device according to claim 6, it is characterized in that, the external annulus of described pad (3) is provided with protruding tongue (31), on the internal ring wall of described annular groove (11), offer the straight trough (10) along its Axis Extension, described protruding tongue (31) is arranged in described straight trough (10).
8. float-ring sealing device according to claim 7, it is characterized in that, the all grooves (20) that also offer vertical described straight trough (10) on the internal ring wall of described annular groove (11), described locking plate (5) is arranged in described all grooves (20).
9. float-ring sealing device according to claim 8, it is characterized in that, described floating ring (2) comprise graphite annulus (21) and be sheathed on described graphite annulus (21) outer and with the friction tight steel bushing of described graphite annulus (21) (22), the both sides of described graphite annulus (21) respectively with inner side and described pad (3) butt of described annular groove (11).
10. float-ring sealing device according to claim 9, is characterized in that, described pad (3), described ripple spring (4) and described locking plate (5) three's internal diameter is equal to or is greater than the internal diameter of described floating ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320367958.5U CN203395062U (en) | 2013-06-25 | 2013-06-25 | Corrugated spring and floating-ring sealing device provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320367958.5U CN203395062U (en) | 2013-06-25 | 2013-06-25 | Corrugated spring and floating-ring sealing device provided with same |
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| Publication Number | Publication Date |
|---|---|
| CN203395062U true CN203395062U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320367958.5U Expired - Lifetime CN203395062U (en) | 2013-06-25 | 2013-06-25 | Corrugated spring and floating-ring sealing device provided with same |
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| CN (1) | CN203395062U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061276A (en) * | 2014-07-02 | 2014-09-24 | 中国科学院长春光学精密机械与物理研究所 | Spatial optical load ontrack vibration isolator |
| CN105972216A (en) * | 2016-07-22 | 2016-09-28 | 中国航空动力机械研究所 | Circumferential graphite sealing device |
| CN106704594A (en) * | 2015-08-04 | 2017-05-24 | 四川日机密封件股份有限公司 | Totally split type carbon ring sealing device |
| CN107084244A (en) * | 2017-06-15 | 2017-08-22 | 中国科学院工程热物理研究所 | Comb tooth and floating ring combined sealing structure |
| CN107327571A (en) * | 2017-06-15 | 2017-11-07 | 中国科学院工程热物理研究所 | Floating-ring seal component with skewed slot |
| CN107588139A (en) * | 2017-08-24 | 2018-01-16 | 长沙明道信息科技有限公司 | A kind of wave type springs |
| CN109342046A (en) * | 2018-12-13 | 2019-02-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of seal assembly floating performance Online Transaction Processing |
| CN110285219A (en) * | 2019-06-28 | 2019-09-27 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of efficient double zero leakage float-ring sealing device |
| CN111656062A (en) * | 2018-01-29 | 2020-09-11 | 特瑞堡密封系统德国有限公司 | Axial shaft seal ring and seal assembly |
-
2013
- 2013-06-25 CN CN201320367958.5U patent/CN203395062U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061276A (en) * | 2014-07-02 | 2014-09-24 | 中国科学院长春光学精密机械与物理研究所 | Spatial optical load ontrack vibration isolator |
| CN106704594A (en) * | 2015-08-04 | 2017-05-24 | 四川日机密封件股份有限公司 | Totally split type carbon ring sealing device |
| CN106704594B (en) * | 2015-08-04 | 2018-11-27 | 四川日机密封件股份有限公司 | Complete section fraction carbon ring seal device |
| CN105972216A (en) * | 2016-07-22 | 2016-09-28 | 中国航空动力机械研究所 | Circumferential graphite sealing device |
| CN107084244A (en) * | 2017-06-15 | 2017-08-22 | 中国科学院工程热物理研究所 | Comb tooth and floating ring combined sealing structure |
| CN107327571A (en) * | 2017-06-15 | 2017-11-07 | 中国科学院工程热物理研究所 | Floating-ring seal component with skewed slot |
| CN107327571B (en) * | 2017-06-15 | 2018-09-11 | 中国科学院工程热物理研究所 | Floating-ring seal component with skewed slot |
| CN107588139A (en) * | 2017-08-24 | 2018-01-16 | 长沙明道信息科技有限公司 | A kind of wave type springs |
| CN111656062A (en) * | 2018-01-29 | 2020-09-11 | 特瑞堡密封系统德国有限公司 | Axial shaft seal ring and seal assembly |
| CN109342046A (en) * | 2018-12-13 | 2019-02-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of seal assembly floating performance Online Transaction Processing |
| CN110285219A (en) * | 2019-06-28 | 2019-09-27 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of efficient double zero leakage float-ring sealing device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |