CN1354332A - Three-pivot seal testing device - Google Patents
Three-pivot seal testing device Download PDFInfo
- Publication number
- CN1354332A CN1354332A CN 01136988 CN01136988A CN1354332A CN 1354332 A CN1354332 A CN 1354332A CN 01136988 CN01136988 CN 01136988 CN 01136988 A CN01136988 A CN 01136988A CN 1354332 A CN1354332 A CN 1354332A
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- Prior art keywords
- bearing
- main shaft
- bearings
- groups
- seal
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- 238000012360 testing method Methods 0.000 title claims abstract description 68
- 238000007789 sealing Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The present invention relates to a three-fulcrum type seal test device, on the seal test main shaft a three-fulcrum type structure is placed for supporting said shaft. The described three-fulcrum type structure is characterized by that three groups of bearings which are mutually spaced at a certain distance are mounted on the seal test main sahft, in which two groups of bearings are respectively mounted into two fixed bearing seats; another group of bearing of mounted in a removable bearing seat, between the removable beairng seat and its adjacent fixed bearing seat, the tested seal cavity and tested seal are mounted. Said invention possesses the folloiwng advantages: good rigidity of test seal main shaft, high critical rotating speed, and said device is suitable for testing various gas seals.
Description
Technical field
The invention belongs to seal test device, particularly relating to a kind of end face seal that is used for various sealings especially gas lubrication is the three-pivot seal testing device that dry gas seal carries out high-speed test (HST).
Background technique
In present known seal test device, a kind of is two fulcrum types or title freely-supported beam type seal test device, placed between two groups of bearings by the test sealing, though it has the little and strong characteristics of rigidity of fulcrum span, but the diameter of axle in the device is poor for applicability to the product different size, by test sealing dismounting complexity, experimentation cost is very high.Another kind is the single swing arm type seal test device, it has compact structure, easy accessibility, adaptability is strong and experimentation cost is low advantage, but its shortcoming is greater than advantage, leakage test main shaft poor rigidity, critical speed of rotation is low, is unsuitable for the large-diameter sealing and does high speed test.Also having a kind of in addition is exactly disclosed CNZL88214684 on February 21 nineteen ninety " running shaft seal arrangement test stand ", it is to adopt two cantilevers or four fulcrum type structures, owing to adopt the dedicated gear transmission, so overall volume is huge, complex structure, investment is big, and it is big to take the test site, and noise is big, and experimental enviroment is abominable.
Summary of the invention
The present invention provides a kind of three-pivot seal testing device for solving the technical problem that exists in the known technology.
The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is:
Three-pivot seal testing device is made up of frequency control motor, leakage test main shaft, bearing pack, bearing support and seal chamber, be characterised in that the leakage test main shaft is three fulcrum type structures, three groups of bearings in a certain distance apart from one another promptly are housed on the leakage test main shaft, there are two groups of bearings to be contained in respectively in two fixed bearing blocks in three groups of bearings, another group bearing is contained in the bearing support easy to assemble, is equipped with between bearing support easy to assemble and the fixed bearing block that is adjacent by the test seal chamber and by the test sealing.
The present invention can also adopt following technical measures to realize:
The described distance range that is loaded on one group of bearing in the bearing support easy to assemble and is loaded between one group of interior bearing of an adjacent fixed bearing block is made as the 100-350 millimeter.
Each group bearing number in described three groups of bearings is 1-4.
Described motor shaft connects the leakage test main shaft by coupling.
Described motor shaft connects gear speeder by coupling, and gear speeder connects the leakage test main shaft by another coupling again.
The sponson of described motor shaft can be the leakage test main shaft.
Advantage and good effect that the present invention has are: because the leakage test main shaft among the present invention has adopted three fulcrum type structures, therefore test seals the main shaft good rigidly, and the critical speed of rotation height is suitable for high speed test is carried out in sealing; By test sealing easy accessibility, the axial-radial dimensional range is big, highly versatile, and experimentation cost is low; Testing apparatus vibration and noise are low; Compact structure, occupied ground is little.This testing apparatus be suitable for to various sealings particularly dry gas seal carry out high-speed test (HST).
Description of drawings
Fig. 1 is a first embodiment of the present invention structural representation;
Fig. 2 is a second embodiment of the present invention structural representation;
Fig. 3 is a third embodiment of the present invention structural representation.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Embodiment one: see also Fig. 1, the housing 2 of frequency control motor 5 is housed on base 1, one group of bearing 3,7 respectively is equipped with by fixed bearing block 4,6 respectively in its two ends, support the motor shaft 501 of frequency control motor 5 by two groups of bearings 3,7, the overhanging end of motor shaft 501 is equipped with coupling 8, connect with leakage test main shaft 12 by the end of coupling 8 motor shaft 501, leakage test main shaft 12 is contained in the housing 11 and stretches out housing 11 to the left, is equipped with in housing 11 left sides by test seal chamber 15 and by test sealing 16.Above-mentioned leakage test main shaft 12 is three fulcrum type structures, promptly support by being contained in the two groups of bearings 9,14 in the housing 11 and being contained in by one group of bearing 17 of test seal chamber 15 outer ends, wherein two groups of bearings 9,14 are loaded on respectively within back fixed bearing block 10 and the preceding fixed bearing block 13, and another group bearing 17 is loaded within the bearing support 18 easy to assemble.Two groups of bearings 9,14 after being loaded within fixed bearing block 10 and the preceding fixed bearing block 13 generally do not need frequent dismounting except that maintenance; But owing to needed frequent dismounting by test sealing 16, thus bearing support easy to assemble 18 should be convenient to dismounting and and two fixed bearing blocks 10,13 between the good coaxality of maintenance.Like this, leakage test main shaft 12 is just supported by three groups of bearings, is three fulcrum type structures.In order to guarantee that being tested sealing 16 has enough installing spaces, simultaneously can make leakage test main shaft 12 that good rigidity is arranged again, be loaded on one group of bearing 17 within the bearing support 18 easy to assemble with the one group of bearing 14 that is loaded within the preceding fixed bearing block 13 between the scope of distance A should be within the scope of 100-350 millimeter.The number that is loaded on the every group of bearing 9,14,17 in three bearing supports 10,13,18 in the figure is followed successively by 2,3 and 2 from left to right, but the present invention is not limited to this arrangement, and the number of every group of middle (center) bearing can be 1 to 4.Core concept of the present invention is to provide three supporting points (every group of bearing is considered as a supporting point) for the leakage test main shaft, so that improve the rigidity and the critical speed of rotation of leakage test main shaft significantly, to be fit to the requirement of sealing high-speed test (HST), can be convenient to the dismounting of tested sealing simultaneously again.
Embodiment two: see also Fig. 2, the overhanging to the left part 2101 of the motor shaft 21 of frequency control motor 20 is the leakage test main shaft, this supports by the three groups of bearings 28,27,26 that are loaded within back fixed bearing block 19, preceding fixed bearing block 22 and the bearing support easy to assemble 25, test seal chamber 24 and one group and is tested and seal 23 and be loaded between bearing support 25 easy to assemble and the preceding fixed bearing block 22; The scope apart from B that is loaded between the bearing in these two bearing supports is the 100-350 millimeter.The number of three bearing pack middle (center) bearings is followed successively by 2,2 and 2 from left to right in the figure, but the present invention is not limited to this arrangement, and the number of every group of middle (center) bearing is 1 to 4.Different with embodiment 1, leakage test main shaft and motor shaft are not mutually independently in the present embodiment, but are same axle, and the overhanging to the left part of motor shaft is exactly the leakage test main shaft.Yet in these two embodiments, substantive characteristics of the present invention has all obtained embodiment: the leakage test main shaft all has three supporting points (every group of bearing is considered as a supporting point).
Implementing the solution of the present invention can also have multiplely, and as embodiment three: see also Fig. 3, different is with embodiment one: increased a gear speeder 29 on embodiment one basis, and so on.In any case but, each embodiment all must possess above-described three fulcrum type structure characteristics, three groups of bearings that are the leakage test main shaft by in a certain distance apart from one another support (every group of bearing is considered as a fulcrum), the number of every group of middle (center) bearing is 1 to 4, and the distance that is loaded between one group of bearing in the bearing support easy to assemble one group of bearing interior with being loaded on an adjacent fixed bearing block is the 100-350 millimeter.
Claims (6)
1. three-pivot seal testing device, form by frequency control motor, leakage test main shaft, bearing pack, bearing support and seal chamber, it is characterized in that: the leakage test main shaft is three fulcrum type structures, three groups of bearings in a certain distance apart from one another promptly are housed on the leakage test main shaft, there are two groups of bearings to be contained in respectively in two fixed bearing blocks in three groups of bearings, another group bearing is contained in the bearing support easy to assemble, is equipped with between bearing support easy to assemble and the fixed bearing block that is adjacent by the test seal chamber and by the test sealing.
2. three-pivot seal testing device according to claim 1 is characterized in that: the distance range that is loaded between one group of bearing in the bearing support easy to assemble one group of bearing interior with being loaded on an adjacent fixed bearing block is made as the 100-350 millimeter.
3. three-pivot seal testing device according to claim 1 is characterized in that: each the group bearing number in three groups of bearings is 1-4.
4. according to claim 1 or 2 or 3 described three-pivot seal testing devices, it is characterized in that: motor shaft connects the leakage test main shaft by coupling.
5. according to claim 1 or 2 or 3 described three-pivot seal testing devices, it is characterized in that: motor shaft connects gear speeder by coupling, and gear speeder connects the leakage test main shaft by another coupling again.
6. according to claim 1 or 2 or 3 described three-pivot seal testing devices, it is characterized in that: the sponson of motor shaft can be the leakage test main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136988 CN1128992C (en) | 2001-12-27 | 2001-12-27 | Three-pivot seal testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136988 CN1128992C (en) | 2001-12-27 | 2001-12-27 | Three-pivot seal testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1354332A true CN1354332A (en) | 2002-06-19 |
| CN1128992C CN1128992C (en) | 2003-11-26 |
Family
ID=4674063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01136988 Expired - Fee Related CN1128992C (en) | 2001-12-27 | 2001-12-27 | Three-pivot seal testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1128992C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502859A (en) * | 2020-10-09 | 2021-03-16 | 蓝箭航天技术有限公司 | High-speed dynamic sealing element test device for rocket engine |
| CN114486083A (en) * | 2021-12-29 | 2022-05-13 | 西安理工大学 | High-speed mechanical sealing performance comprehensive test bench |
-
2001
- 2001-12-27 CN CN 01136988 patent/CN1128992C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502859A (en) * | 2020-10-09 | 2021-03-16 | 蓝箭航天技术有限公司 | High-speed dynamic sealing element test device for rocket engine |
| CN112502859B (en) * | 2020-10-09 | 2022-03-04 | 蓝箭航天技术有限公司 | High-speed dynamic sealing element test device for rocket engine |
| CN114486083A (en) * | 2021-12-29 | 2022-05-13 | 西安理工大学 | High-speed mechanical sealing performance comprehensive test bench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1128992C (en) | 2003-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 1136988.4 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 1279591.7 utility model patent to be given up, and in the 19 volume of the 48 issue of the new type of communique on the patent right to abandon the announcement. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JOHN CRANE DINGMING SEALED (TIANJIN) CO., LTD. Free format text: FORMER NAME OR ADDRESS: DINGMING SEAL CO. LTD., TIANJIN NEW TECHNOLOGY INDUSTRIAL ZONE |
|
| CP03 | Change of name, title or address |
Address after: 300192 No. 7 East scientific research road, Tianjin, Nankai District Patentee after: Dingming Sealing Co., Ltd., Tianjin New Technology Zone Address before: 300192 No. 7 East scientific research road, Tianjin, Nankai District Patentee before: Dingming Seal Co., Ltd., Tianjin New Technology Industrial Zone |
|
| C56 | Change in the name or address of the patentee |
Owner name: JOHNKERLAN TECHNOLOGY (TIANJIN) CO., LTD. Free format text: FORMER NAME: JOHNKERLAN-DINGMING SEALING (TIANJIN) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 300384 Tianjin New Technology Industrial Park Huayuan Industrial Area (outer ring) Haitai Huake Road No. 9 Patentee after: John crane technology (Tianjin) Co., Ltd. Address before: 300192 No. 7 East scientific research road, Tianjin, Nankai District Patentee before: Dingming Sealing Co., Ltd., Tianjin New Technology Zone |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031126 Termination date: 20181227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |