CN104514888A - Mechanical seal for large-shaft diameter equipment - Google Patents
Mechanical seal for large-shaft diameter equipment Download PDFInfo
- Publication number
- CN104514888A CN104514888A CN201410822044.2A CN201410822044A CN104514888A CN 104514888 A CN104514888 A CN 104514888A CN 201410822044 A CN201410822044 A CN 201410822044A CN 104514888 A CN104514888 A CN 104514888A
- Authority
- CN
- China
- Prior art keywords
- mechanical seal
- rotating seat
- diameter equipment
- ring
- spring
- 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.)
- Pending
Links
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The invention discloses a mechanical seal for large-shaft diameter equipment. The mechanical seal for the large-shaft diameter equipment comprises stationary rings, moving rings, moving ring seats, springs and transmission sleeves, the springs are arranged on the transmission sleeves, the moving ring seats, moving rings and stationary rings are symmetrically arranged at two ends of each spring in sequence, all of the moving ring seats, moving rings and stationary rings sleeve shaft housings, the moving rings are arranged in the moving ring seats, and the moving ring seats are connected with the transmission sleeves. The mechanical seal for the large-shaft diameter equipment is featured with simple structure and good sealing property, the disadvantage that a normal mechanical seal structure is easy to lose efficacy when being used for the large-shaft diameter equipment is overcame, and the long-period reliable running of the mechanical seal can be guaranteed under the severe conditions.
Description
Technical field
The present invention relates to mechanical seal field, be specifically related to a kind of mechanical seal for large-diameter equipment.
Background technique
Along with the large scale development increasingly of chemical industry fluid machinery, higher requirement be it is also proposed to the Reliability of Mechanical Seal of large-diameter fluid device, this type of large-diameter fluid device diameter of axle often reaches 400 ~ 500mm, even larger, because the equipment diameter of axle is very large, cause axle to be altered, thermal expansion amount, oscillating quantity, vibration all can be thereupon larger, the mechanical seal of conventional construction pattern is often easy lost efficacy under this application conditions.
Summary of the invention
The object of the invention is to overcome above-mentioned not enough problem, a kind of mechanical seal for large-diameter equipment is provided.
The technological scheme that the present invention is adopted for achieving the above object is: a kind of mechanical seal for large-diameter equipment, comprise stationary ring, rotating ring, rotating seat, spring, drive sleeve, described spring fitting is in drive sleeve, described both ends of the spring is symmetrical arranged rotating seat, rotating ring, stationary ring successively, described rotating seat, rotating ring, stationary ring are all sleeved on axle sleeve, described rotating ring is arranged on rotating seat inside, and described rotating seat is connected with drive sleeve.
Described rotating seat is connected by transmission screw with drive sleeve.
Described transmission screw is positioned at rotating seat place and is set with screw sheath, is provided with spacer between described screw sheath and drive sleeve.
Described spacer is sleeved on transmission screw.
Between the rotating seat of spring both sides, driving pin is installed.
Described driving pin both sides are positioned at corresponding rotating seat place and are all set with guide.
Two exterior edge faces of described stationary ring are all provided with seal ring.
Described spring is through the spring eye of drive sleeve.
Described rotating ring adopts graphite rotating ring, and described rotating seat adopts metal rotating seat.
Between described rotating ring and rotating seat, stop pin is installed.
Feature of the present invention is: structure is simple, good seal performance, overcomes the defect that conventional mechanical sealing configuration easily lost efficacy under large-diameter equipment application conditions, can ensure that mechanical seal long periodicity reliably operates under this type of harsh application conditions.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1, O shape circle 1, stationary ring 3, O shape circle 24, rotating ring 5, O shape circle 6, rotating seat 7, screw sheath 8, transmission screw 9, spring 10, spacer 11, stop pin 12, guide 13, driving pin 14, drive sleeve 15, jackscrew.
Embodiment
As shown in Figure 1, the present invention adopts back-to-back, share spring structure, comprise stationary ring 2, rotating ring 4, rotating seat 6, spring 9, drive sleeve 14, described drive sleeve 14 is arranged on axle sleeve by jackscrew 15, described spring 9 is through the spring eye of drive sleeve 14, and its two ends are symmetrical arranged rotating seat 6 successively, rotating ring 4, stationary ring 2, described rotating seat 6, rotating ring 4, stationary ring 2 is all sleeved on axle sleeve, it is inner that described rotating ring 4 is arranged on rotating seat 6, therebetween stop pin 11 is installed, between two rotating seats 6, driving pin 13 is installed, driving pin 13 both sides are positioned at corresponding rotating seat 6 place and are all set with guide 12, by guide 12, driving pin 13 realizes transmission and the move guidance of both sides sealing, described rotating seat 6 is connected by transmission screw 8 with drive sleeve 14, transmission screw 8 is screwed in drive sleeve 14, and transmission screw 8 and rotating seat 6 Spielpassung, transmission screw 8 limits the movable amount of rotating seat 6 and circle swing amount, described transmission screw 8 is positioned at rotating seat 6 place and is set with screw sheath 7, between described screw sheath 7 and drive sleeve 14, spacer 10 is installed, described spacer 10 to be sleeved on transmission screw 8 and to be connected with drive sleeve 14, to realize the collection dress sealing core part, and realize the adjustment to the amount of spring compression of both sides sealing by adjustment spacer 10 quantity, described rotating ring 4 adopts graphite rotating ring, described rotating seat 6 adopts metal rotating seat, graphite rotating ring is by metal rotating seat and stop pin 11 combining form, overcome the shortcoming that graphite annulus fragility is frangible, be provided with again good frictional behaviour simultaneously, described spring 9 acts on metal rotating seat through its two ends of spring eye of drive sleeve 14 respectively, can available protecting graphite rotating ring, spring 9 can servo-actuated ring seat 6 move left and right, rotating ring 4 working depth of both sides can alter automatic adjustment with axle, adapt to the large axle amount of altering, two exterior edge faces of described stationary ring 2 are all provided with seal ring, i.e. O type circle 1 and O type circle 23, by adopting two-sided O type circle support float type structure, stationary ring 2 can be swung by follow-up ring 4, deflection, to adapt to the large swing of equipment, vibration.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technological scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. the mechanical seal for large-diameter equipment, it is characterized in that: comprise stationary ring (2), rotating ring (4), rotating seat (6), spring (9), drive sleeve (14), described spring (9) is arranged in drive sleeve (14), described spring (9) two ends are symmetrical arranged rotating seat (6), rotating ring (4), stationary ring (2) successively, described rotating seat (6), rotating ring (4), stationary ring (2) are all sleeved on axle sleeve, it is inner that described rotating ring (4) is arranged on rotating seat (6), and described rotating seat (6) is connected with drive sleeve (14).
2. a kind of mechanical seal for large-diameter equipment as claimed in claim 1, is characterized in that: described rotating seat (6) is connected by transmission screw (8) with drive sleeve (14).
3. a kind of mechanical seal for large-diameter equipment as claimed in claim 2, it is characterized in that: described transmission screw (8) is positioned at rotating seat (6) place and is set with screw sheath (7), is provided with spacer (10) between described screw sheath (7) and drive sleeve (14).
4. a kind of mechanical seal for large-diameter equipment as claimed in claim 3, is characterized in that: described spacer (10) is sleeved on transmission screw (8).
5. a kind of mechanical seal for large-diameter equipment as claimed in claim 1, is characterized in that: be provided with driving pin (13) between the rotating seat (6) of spring 9 both sides.
6. a kind of mechanical seal for large-diameter equipment as claimed in claim 5, is characterized in that: described driving pin both sides are positioned at corresponding rotating seat place and are all set with guide.
7. a kind of mechanical seal for large-diameter equipment as claimed in claim 1, is characterized in that: two exterior edge faces of described stationary ring (2) are all provided with seal ring.
8. a kind of mechanical seal for large-diameter equipment as claimed in claim 1, is characterized in that: described spring (9) is through the spring eye of drive sleeve (14).
9. a kind of mechanical seal for large-diameter equipment as claimed in claim 1, is characterized in that: described rotating ring (4) adopts graphite rotating ring, and described rotating seat (6) adopts metal rotating seat.
10. a kind of mechanical seal for large-diameter equipment as claimed in claim 1, is characterized in that: install stop pin (11) between described rotating ring (4) and rotating seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410822044.2A CN104514888A (en) | 2014-12-26 | 2014-12-26 | Mechanical seal for large-shaft diameter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410822044.2A CN104514888A (en) | 2014-12-26 | 2014-12-26 | Mechanical seal for large-shaft diameter equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104514888A true CN104514888A (en) | 2015-04-15 |
Family
ID=52790603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410822044.2A Pending CN104514888A (en) | 2014-12-26 | 2014-12-26 | Mechanical seal for large-shaft diameter equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514888A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221427A (en) * | 2015-11-05 | 2016-01-06 | 山东三牛机械有限公司 | A kind of Roots blower integrated mechanical sealing |
| JP2021028511A (en) * | 2019-08-09 | 2021-02-25 | イーグル工業株式会社 | Double mechanical seal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3931978A (en) * | 1973-09-26 | 1976-01-13 | Burmah Engineering Company Limited | Mechanical seals |
| US4377290A (en) * | 1982-03-22 | 1983-03-22 | John Crane-Houdaille, Inc. | Symmetrical seal package for multiple face seals |
| CN203023025U (en) * | 2012-11-02 | 2013-06-26 | 任振林 | Double mechanical seal for fluoroplastic pump |
| CN203395183U (en) * | 2013-07-23 | 2014-01-15 | 天津市联强机械密封技术有限公司 | Dry running mechanical seal with reactor equipment double-end-surface collecting well design |
| CN203594785U (en) * | 2013-12-04 | 2014-05-14 | 丹东波纹管密封有限公司 | Follow-up double mechanical seal for kettle |
-
2014
- 2014-12-26 CN CN201410822044.2A patent/CN104514888A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3931978A (en) * | 1973-09-26 | 1976-01-13 | Burmah Engineering Company Limited | Mechanical seals |
| US4377290A (en) * | 1982-03-22 | 1983-03-22 | John Crane-Houdaille, Inc. | Symmetrical seal package for multiple face seals |
| CN203023025U (en) * | 2012-11-02 | 2013-06-26 | 任振林 | Double mechanical seal for fluoroplastic pump |
| CN203395183U (en) * | 2013-07-23 | 2014-01-15 | 天津市联强机械密封技术有限公司 | Dry running mechanical seal with reactor equipment double-end-surface collecting well design |
| CN203594785U (en) * | 2013-12-04 | 2014-05-14 | 丹东波纹管密封有限公司 | Follow-up double mechanical seal for kettle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221427A (en) * | 2015-11-05 | 2016-01-06 | 山东三牛机械有限公司 | A kind of Roots blower integrated mechanical sealing |
| JP2021028511A (en) * | 2019-08-09 | 2021-02-25 | イーグル工業株式会社 | Double mechanical seal |
| JP7234073B2 (en) | 2019-08-09 | 2023-03-07 | イーグル工業株式会社 | double mechanical seal |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150415 |
|
| RJ01 | Rejection of invention patent application after publication |