CN202545814U - Mechanical sealing device with adjustable pre-tightening force - Google Patents
Mechanical sealing device with adjustable pre-tightening force Download PDFInfo
- Publication number
- CN202545814U CN202545814U CN2012201775634U CN201220177563U CN202545814U CN 202545814 U CN202545814 U CN 202545814U CN 2012201775634 U CN2012201775634 U CN 2012201775634U CN 201220177563 U CN201220177563 U CN 201220177563U CN 202545814 U CN202545814 U CN 202545814U
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- CN
- China
- Prior art keywords
- stationary
- sealing device
- seat
- ring
- stationary ring
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/346—Pressing means the pressing force varying during operation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The utility model relates to a mechanical sealing device with adjustable pre-tightening force. The mechanical sealing device comprises a movable ring 8, a movable ring seat 9, a stationary ring 7, a stationary ring seat 6, a spring 10, a clamp ring 5 and an adjusting bolt 2; the movable ring 8 is inlaid in the movable ring seat 9, and is tightly attached to the end surface of the stationary ring 7 under the effect of the spring 10; the stationary ring 7 is inlaid in the stationary ring seat 6; and the adjusting bolt 2 is connected to the stationary ring seat 6 through the clamp ring 5. With the adoption of the mechanical sealing device, the problem that when low-pressure liquid (gas) needs to be sealed, the abrasion to an end surface is aggravated due to the pre-tightening force designed in the sealing high pressure is solved, the adjusting bolt 2 is adopted to move the stationary ring seat 6 for compensating the abrasion loss, the sealing effect is effectively ensured, and the service life of the mechanical sealing device is prolonged. Besides, the mechanical sealing device with adjustable pre-tightening force has a reasonable and scientific structural design and strong practicality.
Description
Technical field
The utility model relates to a kind of mechanical seal device, is specifically related to the adjustable mechanical seal device of a kind of pretightening force.
Background technique
[0002] as indispensable seal arrangement in the rotating equipment, characteristics such as mechanical seal is little because of its reliable operation, leakage rate, long service life, power consumpiton are few have obtained using widely on manufacturing equipments such as compressor, reaction kettle, stirrer.It is to lean on the contact end face of dynamic and static ring under the impacting force effect of sealing-fluid pressure and elastic element, to fit tightly, and slide relative reaches sealing.The end-face friction pair of dynamic and static ring is the key of decision mechanical seal friction, wearing and tearing and sealability as the main sealing surface of mechanical seal, also determines the operating life of mechanical seal simultaneously.According to statistics, the nearly 80%-95% of the leakage of mechanical seal is owing to the seal face friction pair causes.Yet in the reality in the applied mechanical seal; No matter sealed high pressure still hangs down hydraulic fluid (gas) body, and the pretightening force under spring action between dynamic and static ring is constant, and the spring that when sealed high pressure, is designed undoubtedly is applied to low pressure seal can aggravate the wearing and tearing between end face; And under the situation of long-time running; Wearing and tearing between end face can cause pretightening force to reduce, and sealing effect reduces, and directly influence the working life of mechanical seal.
Summary of the invention
Constant and use problems such as sealing effect reduction for a long time in order to overcome the sealing pretightening force of existing mechanical sealing applications under different pressures; The utility model proposes the adjustable mechanical seal device of a kind of pretightening force; This mechanical seal device has not only overcome the deficiency of existing technology; And can guarantee that amount of leakage is controlled in the requirement of being agreed through regulating the gap when working between bolt control dynamic and static ring; Simultaneously, enough leakage rates play cooling and lubricated effect between end face.
The technological scheme that the utility model adopted is: the adjustable mechanical seal device of a kind of pretightening force comprises rotating ring 8, rotating seat 9, stationary ring 7, stationary seat 6, spring 10, collar 9 and regulates bolt 2; It is characterized in that: said rotating ring 8 is embedded on the rotating seat 9, under spring 10 effects, fits tightly on stationary ring 7 end faces; Said stationary ring 7 is embedded on the stationary seat 6; Said adjusting bolt 2 is connected on the stationary seat 6 through collar 5.
In addition, said adjusting bolt 2 and end cap 3 are for being threaded.
In addition, there is the gap between said stationary seat 6 and the end cap 3.
The application's beneficial effect is: when this mechanical seal device has not only solved sealing low pressure liquid (gas) body; Adopt the pretightening force that sealed high pressure designed and cause end face aggravation wear problems; And move stationary seat through the adjusting bolt and come the compensate for wear amount; Effectively guarantee sealing effect, improved the working life of mechanical seal device.In addition, it is reasonable, practical to have a scientific structure design.
Description of drawings
Fig. 1 is the maximum pre-fastening structure figure of the utility model;
Fig. 2 is the minimum pre-fastening structure figure of the utility model;
Wherein: 1 is axle, and 2 for regulating bolt, and 3 is end cap, and 4 is casing, and 5 is collar, and 6 is stationary seat, and 7 is stationary ring, and 8 is rotating ring, and 9 is rotating seat, and 10 is spring, and 11 is spring seat.
Embodiment
The utility model proposes the adjustable mechanical seal device of a kind of pretightening force, and is as depicted in figs. 1 and 2, its objective is to reach the can regulate pretightening force to adapt to the sealing under the different pressures, and the compensate for wear amount guarantees sealing effect.This mechanical seal device mainly is made up of rotating ring 8, rotating seat 9, stationary ring 7, stationary seat 6, spring 10, collar 5 and adjusting bolt 2; Spring seat 11 is fixed on the axle 1 through Cock screw; Under spring 10 effects, the rotating ring 8 that is embedded on the rotating seat 9 is fitted tightly on stationary ring 7 end faces, stationary ring 7 is embedded on the stationary seat 6, and rotary threaded is connected the adjusting bolt 2 on the end cap 3; To drive stationary seat 6 along casing 4 move left and right, reach the purpose of regulating pretightening force and compensate for wear amount.
When sealed high pressure liquid (gas) body, can stationary seat 6 be moved right rotation adjusting bolt 2, pretightening force increases, to satisfy the requirement that the needed pretightening force of sealed high pressure reaches the sealing defined; When sealing low pressure liquid (gas) body, rotation adjusting bolt 2 is moved to the left stationary seat 6, and pretightening force reduces, and is satisfying under the desired leakage rate of sealing, and pretightening force is unlikely to too high and the wearing and tearing aggravation end face simultaneously.For operating time mechanical seal more of a specified duration, the stationary seat 6 that can rotation adjusting bolt 2 moves right is with the pretightening force that compensation reduces because of wearing and tearing, the working life of having improved mechanical seal device.
Claims (3)
1. the adjustable mechanical seal device of pretightening force comprises rotating ring, rotating seat, stationary ring, stationary seat, spring, collar and adjusting bolt; It is characterized in that: said rotating ring is embedded on the rotating seat, under spring action, fits tightly on the stationary ring end face; Said stationary ring is embedded on the stationary seat; Said adjusting bolt is connected on the stationary seat through collar.
2. the adjustable mechanical seal device of a kind of pretightening force according to claim 1 is characterized in that: said adjusting bolt and end cap are for being threaded.
3. the adjustable mechanical seal device of a kind of pretightening force according to claim 1 is characterized in that: have the gap between said stationary seat and the end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201775634U CN202545814U (en) | 2012-04-25 | 2012-04-25 | Mechanical sealing device with adjustable pre-tightening force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201775634U CN202545814U (en) | 2012-04-25 | 2012-04-25 | Mechanical sealing device with adjustable pre-tightening force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545814U true CN202545814U (en) | 2012-11-21 |
Family
ID=47166452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201775634U Expired - Fee Related CN202545814U (en) | 2012-04-25 | 2012-04-25 | Mechanical sealing device with adjustable pre-tightening force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545814U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486268A (en) * | 2013-09-15 | 2014-01-01 | 丹东克隆集团有限责任公司 | Mechanical dry gas sealing device for pumps |
| CN103775539A (en) * | 2014-02-20 | 2014-05-07 | 重庆广播电视大学 | Mechanical automatically-pre-tightening type clutch |
| CN103791095A (en) * | 2014-03-06 | 2014-05-14 | 重庆广播电视大学 | Automatic pre-tightening mechanical seal assembly |
| CN105526361A (en) * | 2015-11-09 | 2016-04-27 | 宁波市鄞州飞矢机械密封件厂 | Mechanical sealing piece |
| CN105526356A (en) * | 2015-11-09 | 2016-04-27 | 宁波市鄞州飞矢机械密封件厂 | Mechanical sealing structure |
| CN105526354A (en) * | 2015-11-09 | 2016-04-27 | 宁波市鄞州飞矢机械密封件厂 | Mechanical sealing device |
| CN105526360A (en) * | 2015-11-09 | 2016-04-27 | 宁波市鄞州飞矢机械密封件厂 | Mechanical sealing mechanism |
| CN106351847A (en) * | 2016-11-01 | 2017-01-25 | 天津市合润科技有限责任公司 | Mechanical sealing device with axial adjusting function for large-sized dredger sludge pump |
| CN108746163A (en) * | 2018-07-19 | 2018-11-06 | 深圳市朗坤环境集团股份有限公司 | Reaction kettle for handling animal solid waste |
| CN110081176A (en) * | 2019-04-02 | 2019-08-02 | 浙江长城搅拌设备股份有限公司 | Long-life type mechanical seal |
| CN111622979A (en) * | 2020-04-07 | 2020-09-04 | 福建福清核电有限公司 | Method for improving sealing reliability of third-stage mechanical seal of main pump |
| CN114962647A (en) * | 2022-04-26 | 2022-08-30 | 国家海洋技术中心 | Sealing structure of constant-temperature seawater tank |
-
2012
- 2012-04-25 CN CN2012201775634U patent/CN202545814U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486268A (en) * | 2013-09-15 | 2014-01-01 | 丹东克隆集团有限责任公司 | Mechanical dry gas sealing device for pumps |
| CN103775539B (en) * | 2014-02-20 | 2016-05-18 | 重庆广播电视大学 | The automatic pre-tensioned type clutch of mechanical type |
| CN103775539A (en) * | 2014-02-20 | 2014-05-07 | 重庆广播电视大学 | Mechanical automatically-pre-tightening type clutch |
| CN103791095A (en) * | 2014-03-06 | 2014-05-14 | 重庆广播电视大学 | Automatic pre-tightening mechanical seal assembly |
| CN103791095B (en) * | 2014-03-06 | 2016-05-18 | 重庆广播电视大学 | Automatically the mechanical seal assembly of pretension |
| CN105526356A (en) * | 2015-11-09 | 2016-04-27 | 宁波市鄞州飞矢机械密封件厂 | Mechanical sealing structure |
| CN105526360B (en) * | 2015-11-09 | 2018-05-15 | 宁波市鄞州飞矢机械密封件厂 | Mechanical sealing mechanism |
| CN105526354A (en) * | 2015-11-09 | 2016-04-27 | 宁波市鄞州飞矢机械密封件厂 | Mechanical sealing device |
| CN105526361A (en) * | 2015-11-09 | 2016-04-27 | 宁波市鄞州飞矢机械密封件厂 | Mechanical sealing piece |
| CN105526360A (en) * | 2015-11-09 | 2016-04-27 | 宁波市鄞州飞矢机械密封件厂 | Mechanical sealing mechanism |
| CN105526354B (en) * | 2015-11-09 | 2018-05-15 | 宁波市鄞州飞矢机械密封件厂 | Mechanically-sealing apparatus |
| CN105526356B (en) * | 2015-11-09 | 2018-05-15 | 宁波市鄞州飞矢机械密封件厂 | Mechanical seal structure |
| CN106351847A (en) * | 2016-11-01 | 2017-01-25 | 天津市合润科技有限责任公司 | Mechanical sealing device with axial adjusting function for large-sized dredger sludge pump |
| CN106351847B (en) * | 2016-11-01 | 2018-08-31 | 天津市合润科技有限责任公司 | The mechanically-sealing apparatus of large dredger dredge pump with axially adjustable function |
| CN108746163A (en) * | 2018-07-19 | 2018-11-06 | 深圳市朗坤环境集团股份有限公司 | Reaction kettle for handling animal solid waste |
| CN110081176A (en) * | 2019-04-02 | 2019-08-02 | 浙江长城搅拌设备股份有限公司 | Long-life type mechanical seal |
| CN110081176B (en) * | 2019-04-02 | 2024-05-28 | 浙江长城搅拌设备股份有限公司 | Long-life mechanical seal |
| CN111622979A (en) * | 2020-04-07 | 2020-09-04 | 福建福清核电有限公司 | Method for improving sealing reliability of third-stage mechanical seal of main pump |
| CN114962647A (en) * | 2022-04-26 | 2022-08-30 | 国家海洋技术中心 | Sealing structure of constant-temperature seawater tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130425 |