CN102644579A - Mechanical seal for crankshaft device of compressor - Google Patents
Mechanical seal for crankshaft device of compressor Download PDFInfo
- Publication number
- CN102644579A CN102644579A CN2012101270530A CN201210127053A CN102644579A CN 102644579 A CN102644579 A CN 102644579A CN 2012101270530 A CN2012101270530 A CN 2012101270530A CN 201210127053 A CN201210127053 A CN 201210127053A CN 102644579 A CN102644579 A CN 102644579A
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- China
- Prior art keywords
- spring
- mechanical seal
- sleeved
- sealing
- spring seat
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- 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.)
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Abstract
The invention discloses a mechanical seal for a crankshaft device of a compressor, which comprises a spring and two identical sealing assemblies. Each sealing assembly consists of a non-compensation ring combination, a compensation ring and a spring which are successively connected and sleeved on a shaft, the two sealing assemblies are symmetrically sleeved on the shaft, the two non-compensation ring combinations are located on the outer sides of the sealing assemblies, one ends of spring seats are sleeved on the shaft, the other ends of the spring seats are sleeved on the outer sides of the compensation rings, two ends of each spring are respectively mounted in the corresponding spring seat, and an O-shaped ring is mounted in a space formed by each spring seat, the corresponding compensation ring and the shaft. The mechanical seal has the advantages that the mechanical seal is a non-balance type seal, and is simple in structure and applicable to sealing a low-pressure compressor crankshaft, a backrest arrangement mode is adopted for the back of the mechanical seal, the springs and anti-rotation pins are shared, flushing to a sealing surface is facilitated, arrangement spaces are saved, the service life of the seal is prolonged, the O-shaped rings are used for transmission, triangular bidirectional surface contact type sealing is realized, and accordingly the mechanical seal is safe and reliable.
Description
Technical field
The present invention relates to the mechanical sealing technology field, be specifically related to a kind of mechanical seal that is used for the compressor crank shaft device.
Background technique
Because compressor crank shaft axial runout amount is bigger, the crankcase seals cavity space is less, and the design of mechanical seal has been proposed higher requirement, and general conventional mechanical seal is difficult to arrange, and is difficult to working life guarantee.
Summary of the invention
The objective of the invention is to overcome above-mentioned not enough problem, a kind of mechanical seal that is used for the compressor crank shaft device is provided.
The present invention for realizing the technological scheme that above-mentioned purpose adopted is: a kind of mechanical seal that is used for the compressor crank shaft device; Comprise spring and two groups of identical sealing group; Said sealing group is made up of the uncompensated ring combination, compensated loop, the spring seat that connect successively and be sleeved on the axle, and two groups of described sealing group symmetries are sleeved on the axle, and two said uncompensated ring combinations are positioned at the outside; Said spring seat one end is sleeved on the axle; The other end is sleeved on the outside of said compensated loop, and the two ends of said spring are installed in respectively in two said spring seats, in the space that said spring seat, compensated loop and axle form O type circle is installed.
Said spring seat, compensated loop and axle form subtriangular space, and said O type circle contacts with spring seat, compensated loop and forms gore.
Two said spring seats connect through stop pin.
Characteristics of the present invention are: adopt unbalanced type, and simple in structure, be applicable to the compressor crank shaft sealing of low-pressure; Carry on the back and adopt the backrest arrangement, shared spring and stop pin save arrangement space when helping the sealing surface flushing, and prolongation seal working life; The transmission of O shape circle, the two-way face contact type sealing of triangle, safe and reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein: 1, uncompensated ring combination 2, compensated loop 3, spring seat 4, spring 5, O type circle 6, stop pin.
Embodiment
As shown in Figure 1; The present invention includes spring 4 and two groups of identical sealing group, said sealing group is made up of the uncompensated ring combination 1, compensated loop 2, the spring seat 3 that connect successively and be sleeved on the axle, and two groups of described sealing group symmetries are sleeved on the axle; And two said uncompensated ring combinations 1 are positioned at the outside; Two pairs of described uncompensated ring combinations 1 have formed two pairs of back-to-back seal faces with compensated loop 2, and said spring seat 3 one ends are sleeved on the axle, and the other end is sleeved on the outside of said compensated loop 2; The two ends of said spring 4 are installed in respectively in two said spring seats 4; And two said spring seats 4 connect transmissions through stop pin 6, realize shared spring 4 and stop pin 6, installation O type circle 5 in the subtriangular space that said spring seat 3, compensated loop 2 and axle form; 5 transmissions of said O type circle contact the two-way face contact type sealing of formation triangle with spring seat, compensated loop.
The above; Be merely the preferable embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technician who is familiar with the present technique field is equal to replacement or change according to technological scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (3)
1. mechanical seal that is used for the compressor crank shaft device; It is characterized in that: comprise spring (4) and two groups of identical sealing group; Said sealing group is made up of uncompensated ring combination (1), the compensated loop (2), the spring seat (3) that connect successively and be sleeved on the axle; Two groups of described sealing group symmetries are sleeved on the axle; And two said uncompensated ring combinations (1) are positioned at the outside, and said spring seat (3) one ends are sleeved on the axle, and the other end is sleeved on the outside of said compensated loop (2); The two ends of said spring (4) are installed in respectively in two said spring seats (3), in the space that said spring seat (3), compensated loop (2) and axle form O type circle (5) are installed.
2. the mechanical seal that is used for the compressor crank shaft device as claimed in claim 1; It is characterized in that: said spring seat (3), compensated loop (2) form subtriangular space with axle, and said O type circle (5) contacts with spring seat (3), compensated loop (2) and forms gore.
3. the mechanical seal that is used for the compressor crank shaft device as claimed in claim 1 is characterized in that: two said spring seats (3) connect through stop pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101270530A CN102644579A (en) | 2012-04-27 | 2012-04-27 | Mechanical seal for crankshaft device of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101270530A CN102644579A (en) | 2012-04-27 | 2012-04-27 | Mechanical seal for crankshaft device of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102644579A true CN102644579A (en) | 2012-08-22 |
Family
ID=46657613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101270530A Pending CN102644579A (en) | 2012-04-27 | 2012-04-27 | Mechanical seal for crankshaft device of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102644579A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3534452A1 (en) * | 1985-09-27 | 1987-04-16 | Goetze Ag | Stirrer seal |
| CN86210334U (en) * | 1986-12-19 | 1987-10-07 | 宁波调压器厂 | Toggle mechanical sealing device |
| CN2311628Y (en) * | 1997-04-25 | 1999-03-24 | 广州市第一水泵厂 | Efficient sealed submersible pump |
| CN2826028Y (en) * | 2005-08-10 | 2006-10-11 | 杭州南方特种泵业有限公司 | Mechanical sealing structure for pump |
| DE102007002644A1 (en) * | 2007-01-12 | 2008-07-17 | Aumüller, Hermann | Stern tube seal, has housing fastened at stern tube and surrounding drive shaft, and sliding ring consisting softer material lying in holder and held in holder in removable manner by retaining units i.e. 0-rings |
| CN201090501Y (en) * | 2007-10-22 | 2008-07-23 | 大庆石油管理局 | Sand pump |
| CN201330726Y (en) * | 2009-01-15 | 2009-10-21 | 台州冠宇密封件有限公司 | Water pump mechanical seal |
| JP2010019083A (en) * | 2008-07-08 | 2010-01-28 | Tsurumi Mfg Co Ltd | Shaft sealing device |
| CN202612032U (en) * | 2012-04-27 | 2012-12-19 | 大连华阳光大密封有限公司 | Mechanical seal used for compressor bent shaft device |
-
2012
- 2012-04-27 CN CN2012101270530A patent/CN102644579A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3534452A1 (en) * | 1985-09-27 | 1987-04-16 | Goetze Ag | Stirrer seal |
| CN86210334U (en) * | 1986-12-19 | 1987-10-07 | 宁波调压器厂 | Toggle mechanical sealing device |
| CN2311628Y (en) * | 1997-04-25 | 1999-03-24 | 广州市第一水泵厂 | Efficient sealed submersible pump |
| CN2826028Y (en) * | 2005-08-10 | 2006-10-11 | 杭州南方特种泵业有限公司 | Mechanical sealing structure for pump |
| DE102007002644A1 (en) * | 2007-01-12 | 2008-07-17 | Aumüller, Hermann | Stern tube seal, has housing fastened at stern tube and surrounding drive shaft, and sliding ring consisting softer material lying in holder and held in holder in removable manner by retaining units i.e. 0-rings |
| CN201090501Y (en) * | 2007-10-22 | 2008-07-23 | 大庆石油管理局 | Sand pump |
| JP2010019083A (en) * | 2008-07-08 | 2010-01-28 | Tsurumi Mfg Co Ltd | Shaft sealing device |
| CN201330726Y (en) * | 2009-01-15 | 2009-10-21 | 台州冠宇密封件有限公司 | Water pump mechanical seal |
| CN202612032U (en) * | 2012-04-27 | 2012-12-19 | 大连华阳光大密封有限公司 | Mechanical seal used for compressor bent shaft device |
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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 | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Applicant after: DALIAN HUAYANG SEALS CO., LTD. Address before: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Applicant before: Dalian Huayang Seals Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DALIAN HUAYANG GUANGDA SEALING CO., LTD. TO: DALIAN HUAYANG SEALS CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |