CN203146404U - Mechanical sealing structure - Google Patents
Mechanical sealing structure Download PDFInfo
- Publication number
- CN203146404U CN203146404U CN 201320192517 CN201320192517U CN203146404U CN 203146404 U CN203146404 U CN 203146404U CN 201320192517 CN201320192517 CN 201320192517 CN 201320192517 U CN201320192517 U CN 201320192517U CN 203146404 U CN203146404 U CN 203146404U
- Authority
- CN
- China
- Prior art keywords
- ring
- seat
- static
- pump shaft
- stationary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title abstract description 10
- 230000003068 static effect Effects 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a mechanical sealing structure, comprising a pump shaft and a shaft sleeve sleeved on the pump shaft; a static assembly and a mobile ring assembly are sequentially sleeved on the shaft sleeve from left to right, the static ring assembly comprises a static ring seat and a static ring arranged in the static ring seat, the mobile ring assembly comprises a mobile ring seat, a spring seat and a mobile ring arranged in the mobile ring seat, a spring is arranged in the middle of the mobile ring seat and the spring seat, the right end of the static ring is tightly attached to the left end of the mobile ring, and a seal ring is arranged between the static ring seat and the static ring as well as between the mobile ring seat and the mobile ring; a limiting ring sleeved on the pump shaft is arranged at the left end of the static ring seat, and the match face between the limiting ring and the pump shaft is a conical face expanding from right to left; and an expanding slot is formed at each of the left and right ends of each seal ring and an O-shaped seal ring is arranged in each expanding slot. In the mechanical sealing structure, the match face between the limiting ring and the pump shaft is the conical face expanding from right to left, so the static ring seat is effectively prevented from moving leftwards, thus ensuring the constant tight attaching of the static and mobile rings and ensuring the sealing effect.
Description
Technical field
The utility model relates to the seal arrangement field, relates in particular to a kind of for the mechanical seal structure between pump case and the pump shaft.
Background technique
At present, can there be certain interval for being rotatably connected in the pump shaft in the various transfer pumps and pump case between pump shaft and the pump case, in order to prevent fed sheet of a media seepage in the gap, must between pump shaft and pump case mechanical seal structure be set.At present mechanical seal structure generally comprises static components and moving ring assembly, but in use finds, static components is easily to the direction slippage away from moving ring assembly, and then causes stationary ring and rotating ring not to fit tightly, and influences sealing effect.
The model utility content
Technical problem to be solved in the utility model provides a kind of mechanical seal structure of good sealing effect.For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of mechanical seal structure, comprise pump shaft and the axle sleeve that is enclosed within on the pump shaft, be with static components and moving ring assembly on the described axle sleeve from left to right successively, described static components comprises stationary seat, be installed in the stationary ring in the stationary seat, moving ring assembly comprises rotating seat, spring seat, be installed in the rotating ring in the rotating seat, be provided with a spring between described rotating seat and the spring seat, and stationary ring right-hand member and rotating ring left end fit tightly, between described stationary seat and the stationary ring, be equipped with a seal ring between rotating seat and the rotating ring, described stationary seat left end is provided with a position limit cycle that is enclosed within on the pump shaft, and the fitting surface of described position limit cycle and pump shaft is a conical surface of expanding from right to left; Two ends, the described seal ring left and right sides all offer an expansion groove, are provided with an O RunddichtringO in the described expansion groove.
Preferably, described spring seat and axle sleeve are interference fit.
Preferably, be provided with first seal ring between described position limit cycle and the stationary seat.
In the mechanical seal structure that the utility model relates to, because the fitting surface of position limit cycle and pump shaft is a conical surface of expanding from right to left, thus prevent that effectively stationary seat is offset left, and then guarantee that stationary ring and rotating ring fit tightly all the time, guarantee sealing effect; In addition, when the pressure between stationary seat and stationary ring, rotating seat and the rotating ring is excessive, the expansion trench brace of seal ring can be held, thus the two ends up and down that make the expansion groove fit tightly respectively at stationary seat, stationary ring (or with rotating seat, rotating ring), further guarantee sealing effect.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
See Fig. 1, a kind of mechanical seal structure that the utility model relates to, comprise pump shaft 1 and the axle sleeve 2 that is enclosed within on the pump shaft 1, be with static components and moving ring assembly on the described axle sleeve 2 from left to right successively, described static components comprises stationary seat 3, be installed in the stationary ring 4 in the stationary seat 3, moving ring assembly comprises rotating seat 5, spring seat 6, be installed in the rotating ring 7 in the rotating seat 5, be provided with a spring 8 between described rotating seat 5 and the spring seat 6, and stationary ring 4 right-hand members and rotating ring 7 left ends fit tightly, between described stationary seat 3 and the stationary ring 4, be equipped with a seal ring 9 between rotating seat 5 and the rotating ring 7, described stationary seat 3 left ends are provided with a position limit cycle 10 that is enclosed within on the pump shaft 1, and described position limit cycle 10 is a conical surface of expanding from right to left with the fitting surface 13 of pump shaft 1; Two ends, described seal ring 9 left and right sides all offer an expansion groove 91, are provided with an O RunddichtringO 11 in the described expansion groove 91.
Preferably, described spring seat 6 is interference fit with axle sleeve 2, thereby is convenient to installation, maintenance and the replacing of spring seat 6.
Preferably, be provided with first seal ring 12 between described position limit cycle 10 and the stationary seat 3.
In the mechanical seal structure that the utility model relates to, because the fitting surface of position limit cycle and pump shaft is a conical surface of expanding from right to left, thus prevent that effectively stationary seat is offset left, and then guarantee that stationary ring and rotating ring fit tightly all the time, guarantee sealing effect; In addition, when the pressure between stationary seat and stationary ring, rotating seat and the rotating ring is excessive, the expansion trench brace of seal ring can be held, thus the two ends up and down that make the expansion groove fit tightly respectively at stationary seat, stationary ring (or with rotating seat, rotating ring), further guarantee sealing effect.
Claims (3)
1. mechanical seal structure, comprise pump shaft (1) and be enclosed within axle sleeve (2) on the pump shaft (1), be with static components and moving ring assembly on the described axle sleeve (2) from left to right successively, described static components comprises stationary seat (3), be installed in the stationary ring (4) in the stationary seat (3), moving ring assembly comprises rotating seat (5), spring seat (6), be installed in the rotating ring (7) in the rotating seat (5), be provided with a spring (8) between described rotating seat (5) and the spring seat (6), and stationary ring (4) right-hand member and rotating ring (7) left end fit tightly, between described stationary seat (3) and the stationary ring (4), be equipped with a seal ring (9) between rotating seat (5) and the rotating ring (7), it is characterized in that: described stationary seat (3) left end is provided with a position limit cycle (10) that is enclosed within on the pump shaft (1), and described position limit cycle (10) is a conical surface of expanding from right to left with the fitting surface (13) of pump shaft (1); Described seal ring (9) two ends, the left and right sides all offer an expansion groove (91), are provided with an O RunddichtringO (11) in the described expansion groove (91).
2. mechanical seal structure according to claim 1 is characterized in that: described spring seat (6) is interference fit with axle sleeve (2).
3. mechanical seal structure according to claim 1 is characterized in that: be provided with first seal ring (12) between described position limit cycle (10) and the stationary seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320192517 CN203146404U (en) | 2013-04-17 | 2013-04-17 | Mechanical sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320192517 CN203146404U (en) | 2013-04-17 | 2013-04-17 | Mechanical sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146404U true CN203146404U (en) | 2013-08-21 |
Family
ID=48973932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320192517 Expired - Fee Related CN203146404U (en) | 2013-04-17 | 2013-04-17 | Mechanical sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146404U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839555A (en) * | 2017-02-14 | 2017-06-13 | 浙江安派餐饮设备有限公司 | Snowflake machine cylinder |
| CN107355541A (en) * | 2017-07-28 | 2017-11-17 | 丹东克隆集团有限责任公司 | Nuclear power safety injection pump mechanically-sealing apparatus drag ring and the fit structure of its ring seat |
| CN107409500A (en) * | 2017-09-15 | 2017-12-01 | 何岸雄 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
| CN109372992A (en) * | 2018-09-28 | 2019-02-22 | 安徽安密机械密封有限公司 | A kind of spring mechanical sealing compensation ring assemblies and its processing technology |
| CN113931869A (en) * | 2021-09-28 | 2022-01-14 | 中核核电运行管理有限公司 | On-line maintenance method for mechanical seal of circulating water pump |
-
2013
- 2013-04-17 CN CN 201320192517 patent/CN203146404U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839555A (en) * | 2017-02-14 | 2017-06-13 | 浙江安派餐饮设备有限公司 | Snowflake machine cylinder |
| CN106839555B (en) * | 2017-02-14 | 2023-03-03 | 安派智厨(浙江)有限公司 | Roller of snowflake machine |
| CN107355541A (en) * | 2017-07-28 | 2017-11-17 | 丹东克隆集团有限责任公司 | Nuclear power safety injection pump mechanically-sealing apparatus drag ring and the fit structure of its ring seat |
| CN107409500A (en) * | 2017-09-15 | 2017-12-01 | 何岸雄 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
| CN109372992A (en) * | 2018-09-28 | 2019-02-22 | 安徽安密机械密封有限公司 | A kind of spring mechanical sealing compensation ring assemblies and its processing technology |
| CN113931869A (en) * | 2021-09-28 | 2022-01-14 | 中核核电运行管理有限公司 | On-line maintenance method for mechanical seal of circulating water pump |
| CN113931869B (en) * | 2021-09-28 | 2024-06-11 | 中核核电运行管理有限公司 | Online maintenance method for mechanical seal of circulating water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: POLYTECHNIC SCHOOL OF SHENYANG LIGONG UNIVERSITY Free format text: FORMER OWNER: LI YINYU Effective date: 20140108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 110035 SHENYANG, LIAONING PROVINCE TO: 113122 FUSHUN, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140108 Address after: 113122, Binhe Road (East Section), Fushun Economic Development Zone (Shen Fu new town), Liaoning, Fushun Province, No. 1 Patentee after: Polytechnic School of Shenyang Ligong University Address before: 110035 room 3-5-2, No. 6, Cangshan Road, Huanggu District, Liaoning, Shenyang Patentee before: Li Yinyu |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140417 |