CN204082637U - Turbine pump and bellow seal thereof - Google Patents
Turbine pump and bellow seal thereof Download PDFInfo
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- CN204082637U CN204082637U CN201420487417.0U CN201420487417U CN204082637U CN 204082637 U CN204082637 U CN 204082637U CN 201420487417 U CN201420487417 U CN 201420487417U CN 204082637 U CN204082637 U CN 204082637U
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Abstract
The utility model discloses a kind of bellow seal of turbine pump, comprise rotating ring, stationary ring, stationary seat, bellows and the sealing gland for being fixedly connected with the housing of turbine pump, the side of described rotating ring and described stationary ring abuts, described stationary ring is arranged on described stationary seat, the two ends of described bellows are fixedly connected with described sealing gland with described stationary seat respectively, and described stationary seat is fixedly connected with described sealing gland.In the bellow seal of the turbine pump provided at the utility model, stationary seat is fixedly connected with sealing gland, and sealing gland is fixedly connected with the housing of turbine pump.When rotatingshaft drives rotating ring to rotate, because stationary seat is fixedly connected with sealing gland, its stationary ring is arranged on stationary seat, rotate so rotating ring is difficult to band dynamic and static ring, and then the situation avoiding bellows to reverse, therefore, the working life of the bellow seal that the application provides extends.This practical habit also discloses a kind of turbine pump comprising above-mentioned bellow seal.
Description
Technical field
The utility model relates to technical field of mechanical, particularly a kind of bellow seal of turbine pump.The application also relates to a kind of turbine pump comprising above-mentioned bellow seal.
Background technique
Turbine pump drives pump by turbine, and carry out to liquid a kind of linkage that constituent element-oxygenant and fuel carry out supercharging, wherein turbine is connected with pump by rotatingshaft.Operationally, the high rotating speed of rotatingshaft can up to 60000 revs/min, and the working fluid of turbine pump and fuel medium need to be separated completely with the combustion gas of driving turbine, seal by the rotatingshaft between turbine and pump arranges bellow seal for turbine pump.
Traditional bellow seal comprises rotating ring, stationary ring, stationary seat, bellows, sealing gland, wherein rotating ring and stationary ring are all on the rotating shaft sheathed, the side of rotating ring and stationary ring abuts, and stationary ring is arranged on stationary seat, and the two ends of bellows are fixedly connected with sealing gland with stationary seat respectively.Sealing gland is fixedly mounted on the housing of turbine pump, and rotating ring is connected with rotation axle key.Operationally, rotatingshaft drives rotating ring to rotate to turbine pump, and rotating ring side and stationary ring side extrude to be formed and seal, and by bellows along the compression of rotatingshaft axial direction, realizes the sealing of turbine pump.
But, because the end face of rotating ring and stationary ring abuts, when rotatingshaft rotates, rotatingshaft drives rotating ring to rotate, frictional force band dynamic and static ring fine rotation between rotating ring and stationary ring, and then drive stationary seat to rotate, because bellows is fixedly connected with stationary seat, so stationary seat drives one end of bellows to reverse, because the other end of bellows is connected with sealing gland, so the bellows the other end is motionless, cause bellows entirety to produce to reverse, finally cause bellows to damage, the sealing of bellow seal lost efficacy, and the working life of bellow seal is shorter.
Therefore, how extending the working life of bellow seal, is those skilled in the art's technical problems urgently to be resolved hurrily.
Model utility content
The purpose of this utility model is to provide a kind of bellow seal of turbine pump, and the working life of this bellow seal extends.Another object of the present utility model is to provide a kind of turbine pump comprising above-mentioned bellow seal.
For achieving the above object, the utility model provides a kind of bellow seal of turbine pump, comprise rotating ring, stationary ring, stationary seat, bellows and the sealing gland for being fixedly connected with the housing of turbine pump, the side of described rotating ring and described stationary ring abuts, described stationary ring is arranged on described stationary seat, the two ends of described bellows are fixedly connected with described sealing gland with described stationary seat respectively, and described stationary seat is fixedly connected with described sealing gland.
Preferably, the outer surface of described stationary seat and the internal surface one of described sealing gland are provided with spacing preiection, and another one is provided with the anti-torsion draw-in groove with described spacing preiection adaptation.
Preferably, described spacing preiection and described anti-torsion draw-in groove are multiple, multiple described spacing preiection with the center of rotation of rotatingshaft for center of circle circumference is uniformly distributed.
Preferably, described bellows comprises the multiple metal clipss welded successively.
Preferably, the two ends of described bellows are welded with described stationary seat and described sealing gland respectively.
Preferably, described sealing gland comprises pressure ring, and described pressure ring to be set in outside described stationary seat and to be fixedly connected with described stationary seat.
Preferably, described stationary ring comprises the stationary ring abutting part abutted with described rotating ring and the stationary ring assembly department be arranged on described stationary seat, described stationary ring abutting part and described stationary ring assembly department are integral type structure, edge is perpendicular on rotatingshaft axial direction, and the width of described stationary ring abutting part is less than the width of described stationary ring assembly department.
A kind of turbine pump, comprise rotatingshaft and be arranged on the bellow seal on described rotatingshaft, described bellow seal is bellow seal described in above-mentioned any one.
Preferably, the axle sleeve be set in outside described rotatingshaft is also comprised.
Preferably, also comprise seal ring, described axle sleeve is provided with the seal groove of accommodating described seal ring, and described seal ring side abuts with described rotatingshaft, described axle sleeve and described rotating ring.
In technique scheme, the bellow seal of the turbine pump that the utility model provides comprises rotating ring, stationary ring, stationary seat, bellows, sealing gland, and the side of rotating ring and stationary ring abuts, and stationary ring is arranged on stationary seat.The two ends of bellows are fixedly connected with sealing gland with stationary seat respectively, and stationary seat is fixedly connected with sealing gland, and sealing gland is used for being fixedly connected with the housing of turbine pump.
Known by foregoing description, in the bellow seal of the turbine pump provided at the utility model, stationary seat is fixedly connected with sealing gland, and sealing gland is fixedly connected with the housing of turbine pump.When rotatingshaft drives rotating ring to rotate, because stationary seat is fixedly connected with sealing gland, its stationary ring is arranged on stationary seat, rotate so rotating ring is difficult to band dynamic and static ring, and then the situation avoiding bellows to reverse, therefore, the working life of the bellow seal that the application provides extends.
Accompanying drawing explanation
The structural representation of the bellow seal that Fig. 1 provides for the utility model embodiment;
The side view of the bellow seal that Fig. 2 provides for the utility model embodiment
Wherein in Fig. 1-2: 1-axle sleeve, 2-sealing gland, 3-pressure ring, 4-stationary seat, 5-rotating ring, 6-seal ring, 7-stationary ring, 8-bellows, 9-spacing preiection.
Embodiment
Core of the present utility model is to provide a kind of bellow seal of turbine pump, and the working life of this bellow seal extends.Another core of the present utility model is to provide a kind of turbine pump comprising above-mentioned bellow seal.
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with drawings and embodiments, the utility model is described in further detail.
Please refer to Fig. 1 to Fig. 2, in a kind of embodiment, the bellow seal of the turbine pump that the utility model provides comprises rotating ring 5, stationary ring 7, stationary seat 4, bellows 8, sealing gland 2, concrete, bellows 8 can be pressure forming bellows, but pressure forming bellows 8 circumferential size is large, and inside and outside footpath stress is concentrated, the application is preferred, and bellows 8 is welded metal bellow, and namely bellows 8 comprises the multiple metal clipss welded successively.The side of rotating ring 5 and stationary ring 7 abuts, and stationary ring 7 is arranged on stationary seat 4.The two ends of bellows 8 are fixedly connected with sealing gland 2 with stationary seat 4 respectively, and wherein ripple can be fixedly connected with sealing gland 2 with stationary seat 4 by modes such as bonding, welding.Stationary seat 4 is fixedly connected with sealing gland 2, concrete, and stationary seat 4 can be fixedly connected with sealing gland 2 by modes such as bonding, welding.Sealing gland 2 is for being fixedly connected with the housing of turbine pump, concrete, and sealing gland 2 is bolted on the housing of turbine pump by 16.
Operationally, rotatingshaft drives rotating ring 5 to rotate to turbine pump, and the stationary ring 7 as compensated loop keeps sealing with rotating ring 5 and contacts under the pre-compression force of bellows 8, and namely rotating ring 5 side and stationary ring 7 side extrude to be formed and seal.By bellows 8 along the compression of rotatingshaft axial direction, realize the sealing of turbine pump.
Known by foregoing description, in the bellow seal of the turbine pump provided at the utility model specific embodiment, stationary seat 4 is fixedly connected with sealing gland 2, and sealing gland 2 is fixedly connected with the housing of turbine pump.When rotatingshaft drives rotating ring 5 to rotate, because stationary seat 4 is fixedly connected with sealing gland 2, its stationary ring 7 is arranged on stationary seat 4, rotate so rotating ring 5 is difficult to band dynamic and static ring 7, and then the situation avoiding bellows 8 to reverse, therefore, the working life of the bellow seal that the application provides extends, and achieves turbine pump stable operation.
Preferably, the internal surface one of stationary seat 4 outer surface and sealing gland 2 is provided with spacing preiection 9, and another one is provided with the anti-torsion draw-in groove with spacing preiection 9 adaptation, and stationary seat 4 and sealing gland 2 are for removably connecting.Concrete, when anti-torsion draw-in groove is arranged on stationary seat 4, the opening upwards of anti-torsion draw-in groove; When anti-torsion draw-in groove is arranged on sealing gland 2, Open Side Down for anti-torsion draw-in groove, concrete, on sealing gland 2, the opening of the projection of anti-torsion draw-in groove is 40 degree, merely add the weight that part is a small amount of, simple and compact for structure, higher compared with the rotation prevention structure intensity of other Type of Welding.When anti-torsion draw-in groove is arranged on sealing gland 2, in order to avoid rotatingshaft drives bellows 8 to move radially along rotatingshaft, the application is preferred, and anti-torsion draw-in groove is the U-shaped draw-in groove that Open Side Down.Because stationary seat 4 realizes being connected by spacing preiection 9 and anti-torsion draw-in groove with sealing gland 2, be convenient to staff's dismounting stationary seat 4, when avoiding stationary seat 4 and the damage of sealing gland 2 one, both all need situation about changing, and reduce the user cost of bellow seal simultaneously.
More preferred, spacing preiection 9 and anti-torsion draw-in groove are multiple, multiple spacing preiection 9 with the center of rotation of rotatingshaft for center of circle circumference is uniformly distributed.By arranging multiple spacing preiection 9 and anti-torsion draw-in groove, make each position uniform force on stationary seat 4 further, avoid when only having a spacing preiection 9, the situation of spacing preiection 9 place force localization, extends the working life of bellow seal further.
Further, sealing gland 2 comprises pressure ring 3, and wherein, pressure ring 3 to be set in outside stationary seat 4 and to be fixedly connected with stationary seat 4.By arranging pressure ring 3, avoid stationary seat 4 along rotatingshaft radial vibration, and then avoid bellows 8 along the situation of rotatingshaft radial vibration, further extend the working life of bellow seal.
Further, stationary ring 7 comprises the stationary ring abutting part abutted with rotating ring 5 and the stationary ring assembly department be arranged on stationary seat 4, stationary ring abutting part and stationary ring assembly department are integral type structure, and edge is perpendicular on rotatingshaft axial direction, and the width of stationary ring abutting part is less than the width of stationary ring assembly department.Width due to stationary ring abutting part is less than the width of stationary ring assembly department, reduces stationary ring 7 and the area of contact of rotating ring 5, avoids stationary ring 7 compared with the situation of quick-wearing.
The bellow seal that a kind of turbine pump that the application provides comprises rotatingshaft and installs on the rotating shaft, wherein bellow seal is any one bellow seal above-mentioned, and rotatingshaft can be connected by key with rotating ring 5.Concrete, the inner ring place of rotating ring 5 has two keyways, and coordinating with the key of rotatingshaft can High Rotation Speed thereupon, and stability of rotation, reliability is high.
In order to avoid turbine pump in use rotatingshaft comparatively quick-wearing, this turbine pump also comprises the axle sleeve 1 be set in outside rotatingshaft, concrete, and axle sleeve 1 is fixedly connected with rotatingshaft, and axle sleeve 1 or can be cast the materials such as blue or green steel and processes by cast iron.
Further, this turbine pump also comprises seal ring 6, and axle sleeve 1 is provided with the seal groove of accommodating seal ring 6, and seal ring 6 side abuts with rotatingshaft, axle sleeve 1 and rotating ring 5, concrete, and sealing circle 6 is rubber ring.By arranging seal ring 6, by rotatingshaft and seal groove inner ring surface radial compression, the surface of contact axial compression of seal groove interior edge face and rotating ring 5, can reach axial, radial seal simultaneously.Effectively improve the sealing of turbine pump, extend the working life of turbine pump further.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the bellow seal of a turbine pump, comprise rotating ring (5), stationary ring (7), stationary seat (4), bellows (8) and the sealing gland (2) for being fixedly connected with the housing of turbine pump, the side of described rotating ring (5) and described stationary ring (7) abuts, described stationary ring (7) is arranged on described stationary seat (4), the two ends of described bellows (8) are fixedly connected with described sealing gland (2) with described stationary seat (4) respectively, it is characterized in that, described stationary seat (4) is fixedly connected with described sealing gland (2).
2. bellow seal according to claim 1, it is characterized in that, the outer surface of described stationary seat (4) and the internal surface one of described sealing gland (2) are provided with spacing preiection (9), and another one is provided with the anti-torsion draw-in groove adaptive with described spacing preiection (9).
3. bellow seal according to claim 2, it is characterized in that, described spacing preiection (9) and described anti-torsion draw-in groove are multiple, multiple described spacing preiection (9) with the center of rotation of rotatingshaft for center of circle circumference is uniformly distributed.
4. bellow seal according to claim 1, is characterized in that, described bellows (8) comprises the multiple metal clipss welded successively.
5. bellow seal according to claim 1, is characterized in that, the two ends of described bellows (8) are welded with described stationary seat (4) and described sealing gland (2) respectively.
6. bellow seal according to claim 1, it is characterized in that, described sealing gland (2) comprises pressure ring (3), and described pressure ring is set in described stationary seat (4) outside and is fixedly connected with described stationary seat (4).
7. bellow seal according to claim 1, it is characterized in that, described stationary ring (7) comprises the stationary ring abutting part abutted with described rotating ring (5) and the stationary ring assembly department be arranged on described stationary seat (4), described stationary ring abutting part and described stationary ring assembly department are integral type structure, edge is perpendicular on rotatingshaft axial direction, and the width of described stationary ring abutting part is less than the width of described stationary ring assembly department.
8. a turbine pump, comprise rotatingshaft and be arranged on the bellow seal on described rotatingshaft, it is characterized in that, described bellow seal is bellow seal according to any one of claim 1-7.
9. turbine pump according to claim 8, is characterized in that, also comprises the axle sleeve (1) be set in outside described rotatingshaft.
10. turbine pump according to claim 9, it is characterized in that, also comprise seal ring (6), described axle sleeve (1) is provided with the seal groove of accommodating described seal ring (6), and described seal ring (6) side abuts with described rotatingshaft, described axle sleeve (1) and described rotating ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487417.0U CN204082637U (en) | 2014-08-27 | 2014-08-27 | Turbine pump and bellow seal thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487417.0U CN204082637U (en) | 2014-08-27 | 2014-08-27 | Turbine pump and bellow seal thereof |
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| Publication Number | Publication Date |
|---|---|
| CN204082637U true CN204082637U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420487417.0U Active CN204082637U (en) | 2014-08-27 | 2014-08-27 | Turbine pump and bellow seal thereof |
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| CN (1) | CN204082637U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757252A (en) * | 2016-04-26 | 2016-07-13 | 成都通密封股份有限公司 | Anti-deflection follow-up seal of low-speed device |
| CN106089794A (en) * | 2016-07-07 | 2016-11-09 | 合肥通用环境控制技术有限责任公司 | A kind of ultra-low temperature pump axle head mechanically-sealing apparatus |
| CN109737094A (en) * | 2018-11-13 | 2019-05-10 | 陕西蓝箭航天技术有限公司 | Dynamic sealing device and gas-turbine-pump combination for turbine pump |
| CN109779947A (en) * | 2019-03-01 | 2019-05-21 | 北京星际荣耀空间科技有限公司 | A kind of dynamic sealing device reused suitable for low-temperature and high-speed |
-
2014
- 2014-08-27 CN CN201420487417.0U patent/CN204082637U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757252A (en) * | 2016-04-26 | 2016-07-13 | 成都通密封股份有限公司 | Anti-deflection follow-up seal of low-speed device |
| CN106089794A (en) * | 2016-07-07 | 2016-11-09 | 合肥通用环境控制技术有限责任公司 | A kind of ultra-low temperature pump axle head mechanically-sealing apparatus |
| CN109737094A (en) * | 2018-11-13 | 2019-05-10 | 陕西蓝箭航天技术有限公司 | Dynamic sealing device and gas-turbine-pump combination for turbine pump |
| CN109737094B (en) * | 2018-11-13 | 2020-05-12 | 陕西蓝箭航天技术有限公司 | Dynamic sealing device for turbine pump and turbine pump set |
| CN109779947A (en) * | 2019-03-01 | 2019-05-21 | 北京星际荣耀空间科技有限公司 | A kind of dynamic sealing device reused suitable for low-temperature and high-speed |
| CN109779947B (en) * | 2019-03-01 | 2024-05-24 | 北京星际荣耀空间科技有限公司 | Dynamic sealing device suitable for low-temperature high-speed reuse |
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Address after: 611130 Changan Road, Liucheng, Wenjiang District, Chengdu, Sichuan Province, No. 198 Patentee after: Sichuan Aerospace beacon Servo Control Technology Co., Ltd. Address before: 611100 Liucheng Road, Wenjiang, Sichuan, No. Changan Road, No. 198 Patentee before: Fenghuo Machine Works of China Aerospace Science and Technology Corporation |