CN204784721U - A seal structure for rotary part - Google Patents
A seal structure for rotary part Download PDFInfo
- Publication number
- CN204784721U CN204784721U CN201520439461.9U CN201520439461U CN204784721U CN 204784721 U CN204784721 U CN 204784721U CN 201520439461 U CN201520439461 U CN 201520439461U CN 204784721 U CN204784721 U CN 204784721U
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- pressure
- oil blanket
- sealing
- ring
- oil sealing
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a seal structure for rotary part, including rotation axis, ring flange and the retaining element continuous with the rotation axis, be provided with the decompression ring that reduces high -pressure oil blanket department pressure when the high -speed rotation of rotation axis between rotation axis and the retaining element, be provided with oil blanket seat circle between high pressure oil blanket and rotation axis and the ring flange, high -pressure oil blanket and the oil blanket seat circle department of meeting realize the movive seal, seal up through the labyrinth seals structure with the ring flange side of high pressure oil blanket. The utility model discloses a decompression design, the oil blanket is sealed, and the mode that static seal and labyrinth seals combined together is taked to seal to the rotary part under the high -pressure condition. From sealed effect, the utility model discloses it is secretly better than traditional independent oil blanket in the sealed effect under the high -pressure condition to rotatory part. Secondarily, the utility model discloses easy maintenance, the oil blanket seat circle of dismantling when changing the oil blanket just can be very convenient changes high -pressure oil blanket, and the process of dismantlement rotation axis when having avoided changing the oil blanket.
Description
[technical field]
The utility model belongs to sealing configuration technical field, relates to a kind of sealing configuration for rotary component.
[background technique]
The current sealing for rotary motion part often adopts the form of oil sealing sealing, but in the great situation of sealed medium pressure, under condition of high voltage, oil seal lip easily produces skew or distortion, affects sealing effect.Only use High-pressure oil sealing to seal rotary component and often leakage of oil occurs.Sealing problem under a kind of knockdown sealing configuration could be adopted to solve high pressure conditions.
A buck configuration can be adopted before High-pressure oil sealing first to reduce the working pressure of High-pressure oil sealing, and then the method taking static seal and labyrinth seal to combine is to stop small leakage, improves the airtight quality of rotary component.
[model utility content]
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, provides a kind of sealing configuration for rotary component.
For achieving the above object, the utility model is achieved by the following technical solutions:
For a sealing configuration for rotary component, the retaining element comprising running shaft, flange plate and be connected with running shaft; The pressure-reducing ring reducing High-pressure oil sealing place pressure when running shaft High Rotation Speed is provided with between running shaft and retaining element; High-pressure oil sealing is arranged on retaining element, High-pressure oil sealing and be provided with oil sealing seat ring between running shaft and flange plate, and High-pressure oil sealing and oil sealing seat ring connecting part realize motive sealing; Side and the flange plate of High-pressure oil sealing are sealed by labyrinth seal structure.
Further improvement of the utility model is:
Pressure-reducing ring is installed in the pressure-reducing ring groove that running shaft offers.
Pressure-reducing ring is provided with an overlap joint mouth, and this overlap joint mouth is obliquely installed.
Pressure-reducing ring adopts the macromolecular material with toughness and wear resistance to make.
The part of running shaft and flange plate and oil sealing seat ring connecting part offers groove respectively, installs an O RunddichtringO in the groove on running shaft, installs the 2nd O RunddichtringO in the groove on flange plate.
The mounting hole interference fit of High-pressure oil sealing and retaining element.
Labyrinth seal structure comprises labyrinth inner ring and labyrinth outer shroud; Labyrinth inner ring and retaining element connecting part, the outside of labyrinth outer shroud and flange plate connecting part.
The outside of labyrinth inner ring offers the groove for installing the 3rd O RunddichtringO.
Labyrinth outer shroud and labyrinth inner ring are equipped with several ring packing teeth be arranged in order, and have the cell of some complications between the two.
Compared with prior art, the utility model has following beneficial effect:
The utility model adopts decompression design, oil sealing sealing, and the mode that static seal and labyrinth seal combine takes sealing to the rotary component under condition of high voltage, and different sealing mode combines, and plays good sealing effect.From sealing effect, the utility model is closeer than traditional independent oil sealing good for rotating part sealing effect under elevated pressure conditions.Secondly, the utility model is easy to maintenance, and oil sealing seat ring of dismantling when changing oil sealing just can be changed High-pressure oil sealing very easily, and avoids the process of dismounting running shaft when changing oil sealing.
Further, the utility model pressure-reducing ring is provided with an overlap joint mouth, when High Rotation Speed, because the effect overlap joint mouth of centrifugal force can open a micro-gap, plays decompression, for reducing High-pressure oil sealing place pressure, and lift-off seal effect.
Further, the utility model labyrinth outer shroud and labyrinth inner ring are equipped with several ring packing teeth be arranged in order, there is flexuose cell perhaps between the two, air outside oil sealing produces throttle effect when the gap by tortuous labyrinth and reaches the effect reducing air flowing, thus avoids fluid to be sucked out.
[accompanying drawing explanation]
Fig. 1 is overall structure schematic diagram figure of the present utility model;
Fig. 2 is the structural representation of the utility model pressure-reducing ring;
Fig. 3 is the structural representation of the utility model pressure-reducing ring overlap joint mouth.
Wherein: 1 is pressure-reducing ring; 2 is running shaft; 3 is an O RunddichtringO; 4 is the 2nd O RunddichtringO; 5 is High-pressure oil sealing; 6 is oil sealing seat ring; 7 is labyrinth outer shroud; 8 is labyrinth inner ring; 9 is the 3rd O RunddichtringO; 10 is flange plate; 11 is overlap joint mouth.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail:
See Fig. 1, when the utility model normally works, pressure-reducing ring 1, running shaft 2, oil sealing seat ring 6, labyrinth outer shroud 7, flange plate 10 rotate jointly.Pressure ring 1 is arranged in the groove of running shaft 2, and High-pressure oil sealing 5 and the mounting hole of retaining element are interference fit transfixion when normally working, and contact with oil sealing seat ring 6 effect playing motive sealing.One O RunddichtringO 3 and the 2nd O RunddichtringO 4 are arranged in the groove of running shaft 2 and flange plate 10 respectively.Labyrinth inner ring 8 bolt is installed on retaining element, and labyrinth inner ring 8 arranged outside groove is for installing the 3rd O RunddichtringO 9.The utility model adopts decompression design, oil sealing sealing, and the mode that static seal and labyrinth seal combine takes sealing to the rotary component under condition of high voltage, and different sealing mode combines, and plays good sealing effect.
The utility model pressure-reducing ring 1 adopts macromolecular material, good toughness should be had, structure as shown in Figures 2 and 3, pressure-reducing ring is provided with an overlap joint mouth 11 when High Rotation Speed, because the effect overlap joint mouth of centrifugal force can open a micro-gap, play decompression, for reducing High-pressure oil sealing 5 place pressure, lift-off seal effect.One O type circle the 3, the 2nd O type circle 4 and the 3rd O RunddichtringO 9, for static seal, avoid the micro-seepage of fluid.In addition, rotating part easily produces larger air-flow when High Rotation Speed, adverse influence can be produced to oil sealing sealing, the utility model labyrinth outer shroud 7 and labyrinth inner ring 8 are equipped with several ring packing teeth be arranged in order, there is flexuose cell perhaps between the two, air outside oil sealing produces throttle effect when the gap by tortuous labyrinth and reaches the effect reducing air flowing, thus avoids fluid to be sucked out.
Above content is only and technological thought of the present utility model is described; protection domain of the present utility model can not be limited with this; every technological thought according to the utility model proposes, any change that technological scheme basis is done, within the protection domain all falling into the utility model claims.
Claims (9)
1. for a sealing configuration for rotary component, it is characterized in that, the retaining element comprising running shaft (2), flange plate (10) and be connected with running shaft (2); The pressure-reducing ring (1) reducing High-pressure oil sealing (5) place pressure when running shaft (2) High Rotation Speed is provided with between running shaft (2) and retaining element; High-pressure oil sealing (5) is arranged on retaining element, High-pressure oil sealing (5) and be provided with oil sealing seat ring (6) between running shaft (2) and flange plate (10), High-pressure oil sealing (5) and oil sealing seat ring (6) connecting part realize motive sealing; Side and the flange plate (10) of High-pressure oil sealing (5) are sealed by labyrinth seal structure.
2. the sealing configuration for rotary component according to claim 1, is characterized in that, described pressure-reducing ring (1) is installed in the pressure-reducing ring groove that running shaft (2) offers.
3. the sealing configuration for rotary component according to claim 1 and 2, is characterized in that, described pressure-reducing ring (1) is provided with an overlap joint mouth (11), and this overlap joint mouth (1) is obliquely installed.
4. the sealing configuration for rotary component according to claim 3, is characterized in that, described pressure-reducing ring (1) adopts the macromolecular material with toughness and wear resistance to make.
5. the sealing configuration for rotary component according to claim 1, it is characterized in that, described running shaft (2) and flange plate (10) offer groove respectively with the part of oil sealing seat ring (6) connecting part, in groove on running shaft (2), an O RunddichtringO (3) is installed, in the groove on flange plate (10), the 2nd O RunddichtringO (4) is installed.
6. the sealing configuration for rotary component according to claim 1, is characterized in that, the mounting hole interference fit of described High-pressure oil sealing (5) and retaining element.
7. the sealing configuration for rotary component according to claim 1, is characterized in that, described labyrinth seal structure comprises labyrinth inner ring (8) and labyrinth outer shroud (7); Labyrinth inner ring (8) and retaining element connecting part, the outside of labyrinth outer shroud (7) and flange plate (10) connecting part.
8. the sealing configuration for rotary component according to claim 7, is characterized in that, the outside in described labyrinth inner ring (8) offers the groove for installing the 3rd O RunddichtringO (9).
9. the sealing configuration for rotary component according to claim 7 or 8, it is characterized in that, described labyrinth outer shroud (7) and labyrinth inner ring (8) are equipped with several ring packing teeth be arranged in order, and have the cell of some complications between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439461.9U CN204784721U (en) | 2015-06-24 | 2015-06-24 | A seal structure for rotary part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439461.9U CN204784721U (en) | 2015-06-24 | 2015-06-24 | A seal structure for rotary part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784721U true CN204784721U (en) | 2015-11-18 |
Family
ID=54524773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520439461.9U Active CN204784721U (en) | 2015-06-24 | 2015-06-24 | A seal structure for rotary part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648354A (en) * | 2020-12-18 | 2021-04-13 | 重庆隆鑫通航发动机制造有限公司 | Box assembly and engine |
-
2015
- 2015-06-24 CN CN201520439461.9U patent/CN204784721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648354A (en) * | 2020-12-18 | 2021-04-13 | 重庆隆鑫通航发动机制造有限公司 | Box assembly and engine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |