CN203594787U - Integrated double-end-face mechanical seal - Google Patents
Integrated double-end-face mechanical seal Download PDFInfo
- Publication number
- CN203594787U CN203594787U CN201320801168.3U CN201320801168U CN203594787U CN 203594787 U CN203594787 U CN 203594787U CN 201320801168 U CN201320801168 U CN 201320801168U CN 203594787 U CN203594787 U CN 203594787U
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- CN
- China
- Prior art keywords
- ring
- rotating ring
- drive sleeve
- retainer
- mechanical seal
- 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.)
- Withdrawn - After Issue
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- Mechanical Sealing (AREA)
Abstract
The utility model relates to a sealing device of a rotating shaft, in particular to an integrated double-end-face mechanical seal. The mechanical seal comprises a transmission base, a fixed ring, a movable ringI, a movable II and a floating transmission device. The movable ring I and the movable II are sequentially arranged on the outer side of the transmission base in a sleeved mode from inside to outside, and the inner wall of the movable II is connected with the transmission base in a sealing mode. One end of the movable ring I and one end of the movable II are connected with the transmission base through the floating transmission device. The other end of the movable ring I and the other end of the movable II are attached to the fixed ring. A sealing material is reasonably selected, the sealing space is efficiently used, the mechanical seal is compact in structure and convenient to disassemble, the excellent performance of the mechanical seal is played to the greatest extent, use is stable and reliable, and the sealing problem of media which are scaled easily and contain sand is solved.
Description
Technical field
The utility model relates to rotation shaft seal, specifically a kind of integrated form double mechanical seal.
Background technique
According to the requirement of symbol API610 standard production pump, supporting sealing should adopt API682 standard production.Pump has the seal chamber of standard, and supporting sealing configuration size is answered symbol DIN24960 or GB6556 standard.Symbol standard seal has good interchangeability, compact structure, and conventional media usability is stable.When standard seal is applied to easy fouling, contains the media such as sand,, often there is short term failure phenomenon in stability in use wretched insufficiency.Existing specific aim solution is to adopt two cover sealing serial or parallel connections to arrange, complex structure also takies larger axis to space, and sealing cost increases.
Model utility content
For the problems referred to above, the purpose of this utility model is to provide a kind of integrated form double mechanical seal.This mechanical seal makes full use of the installing space of standard seal, and reasonable Arrangement double seals in parallel, considers independent compensation and lubricated, adopts balance type structure, different Material Matting pairings, and using scope is more extensive.
To achieve these goals, the utility model is by the following technical solutions:
A kind of integrated form double mechanical seal, comprise retainer, stationary ring, rotating ring I, rotating ring II and floating transmission device, wherein rotating ring II and rotating ring I are sheathed on the outside of retainer and inwall and the retainer of rotating ring II are tightly connected from inside to outside successively, one end of described rotating ring I and rotating ring II is connected with retainer by floating transmission device, and the other end of rotating ring I and rotating ring II is all fitted with stationary ring.
Described floating transmission device comprises drive sleeve I, drive sleeve II, spring I and spring II, wherein drive sleeve II and drive sleeve I are set in the outside of rotating ring II, also flexible connection successively from inside to outside successively, described drive sleeve I is connected with retainer, described rotating ring II and drive sleeve II have mobile vertically displacement amount, and described rotating ring I is connected with the end of drive sleeve I; Described spring I and spring II are placed in drive sleeve I, the spring groove I butt that the two ends of described spring I are provided with rotating ring II and retainer respectively, the spring groove II butt that the two ends of described spring II are provided with drive sleeve II and retainer respectively.
On the inwall of described drive sleeve I and drive sleeve II, be respectively equipped with vertically groove I and groove II, be equipped with lug I and lug II on the outer wall of described drive sleeve II and rotating ring II, described lug I is connected with groove I inserting, and described lug II is connected with groove II inserting.Between described spring I and rotating ring II, be provided with throw-out collar.
Between described drive sleeve I and drive sleeve II and between rotating ring II and retainer, be respectively equipped with rotating ring O-ring seals II and rotating ring O-ring seals I, the inwall of described retainer and the outer wall of stationary ring are respectively equipped with retainer O-ring seals and stationary ring O-ring seals.
A side of described rotating ring O-ring seals II is spacing by the limiting stopper of drive sleeve I end, and opposite side is spacing by baffle ring and snap ring.On described retainer, be radially provided with the Cock screw for being connected with revolving part.
Advantage of the present utility model and good effect are:
1. the utility model utilizes standard seal installation dimension, arranges two groups of kinetic friction pairs, and independent realization seals.
2. the utility model good sealing effect, long service life.
3. the utility model collection assembling structure is simple, reduces costs.
4. the utility model choose reasonable sealed material, efficiently utilizes seal space, compact structure, and convenient disassembly, brings into play mechanical seal superior function to greatest extent, uses reliable and stablely, has solved easy fouling, sealing problem containing the medium such as sand.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1 is rotating ring O-ring seals I, and 2 is throw-out collar, and 3 is drive sleeve II, 4 is retainer O-ring seals, and 5 is spring I, and 6 is drive sleeve I, 7 is retainer, and 8 is stationary ring O-ring seals, and 9 is stationary ring, 10 is rotating ring I, and 11 is rotating ring O-ring seals II, and 12 is baffle ring, 13 is jump ring, 14 is rotating ring II, and 15 is spring II, and 16 is Cock screw.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model comprises retainer 7, stationary ring 9, rotating ring I10, rotating ring II14 and floating transmission device, wherein rotating ring II14 and rotating ring I10 are sheathed on successively from inside to outside the outside of retainer 7 inwall of rotating ring II14 and retainer 7 and are tightly connected, one end of described transmission ring I10 and rotating ring II14 is connected with retainer 7 by floating transmission device, and the other end of transmission ring I10 and rotating ring II14 is all fitted with stationary ring 9.On described retainer 7, be radially provided with the Cock screw 16 for being connected with revolving part, this Cock screw 16 is interior hexagon concave-end locking screw.
Described floating transmission device comprises drive sleeve I6, drive sleeve II3, spring I5 and spring II15, wherein drive sleeve II3 and drive sleeve I6 are set in the outside of rotating ring II14, also flexible connection successively from inside to outside successively, described drive sleeve I6 and retainer 7 weld, and described rotating ring II14 and drive sleeve II3 have mobile vertically displacement amount.The end of described rotating ring I10 insert and drive sleeve I6.Described spring I5 and spring II15 are placed in drive sleeve I6, the spring groove I butt that the two ends of described spring I5 are provided with rotating ring II14 and retainer 7 respectively, the spring groove II butt that the two ends of described spring II15 are provided with drive sleeve II3 and retainer 7 respectively, is provided with throw-out collar 2 between described spring I5 and rotating ring II14.
On the inwall of described drive sleeve I6 and drive sleeve II3, be respectively equipped with vertically groove I and groove II, on the outer wall of described drive sleeve II3 and rotating ring II14, be equipped with lug I and lug II, described lug I is connected with groove I inserting, and described lug II is connected with groove II inserting.
Between described drive sleeve I6 and drive sleeve II3 and between rotating ring II14 and retainer 7, be respectively equipped with rotating ring O-ring seals II11 and rotating ring O-ring seals I1, a side of described rotating ring O-ring seals II11 is spacing by the limiting stopper of drive sleeve I6 end, and opposite side is spacing by baffle ring 12 and snap ring 13.The outer wall of the inwall of described retainer 7 and stationary ring 9 is respectively equipped with retainer O-ring seals 4 and stationary ring O-ring seals 8.
Working principle of the present utility model is:
The utility model is multiple-spring mechanical seal, comprises media end kinetic friction pair and atmosphere end kinetic friction pair.Two kinetic friction pairs are arranged in parallel, and friction torque is transmitted by drive sleeve, and two groups of springs are independently realized the closure of friction pair, guarantee the servo-actuated property of operating condition friction pair.Between two friction pairs, inject lubricant oil, guarantee that two groups of sealings are in good running state.When operation, two secondary independent servo-actuated compensation of kinetic friction, are equivalent to two cover sealing operations simultaneously, in limited space, efficiently bring into play the performance of mechanical seal, guarantee the stability of overall operation.
The utility model erection sequence is: will between two kinetic friction pairs, inject moderate lubrication oil, highly determine dynamic sealing assembly position according to design work, fastening interior hexagon concave-end locking screw, meets sealing fitting operation rules and get final product running device.
The utility model is applicable to standard seal cavity, mainly for easily fouling, containing media such as sand, solves the problem of use standard mechanical single seal stability deficiency.The utility model adopts Double End structure in parallel, and two sealings all adopt balanced type design, are applicable to the occasion that pressure is higher.The utility model makes full use of the bulk of standard seal, and Double End friction pair adopts different materials, and media end friction pair adopts insert hard material-structure, and atmosphere end friction pair adopts graphite material.Between two sealings, there is oil lubrication, the stability of sealing is further enhanced.
Claims (7)
1. an integrated form double mechanical seal, it is characterized in that: comprise retainer (7), stationary ring (9), rotating ring I (10), rotating ring II (14) and floating transmission device, wherein rotating ring II (14) and rotating ring I (10) are sheathed on the outside of retainer (7) from inside to outside successively, and the inwall of rotating ring II (14) and retainer (7) are tightly connected, one end of described rotating ring I (10) and rotating ring II (14) is connected with retainer (7) by floating transmission device, the other end of rotating ring I (10) and rotating ring II (14) is all fitted with stationary ring (9).
2. by integrated form double mechanical seal claimed in claim 1, it is characterized in that: described floating transmission device comprises drive sleeve I (6), drive sleeve II (3), spring I (5) and spring II (15), wherein drive sleeve II (3) and drive sleeve I (6) are set in the outside of rotating ring II (14) from inside to outside successively, and be flexibly connected successively, described drive sleeve I (6) is connected with retainer (7), described rotating ring II (14) and drive sleeve II (3) have mobile vertically displacement amount, described rotating ring I (10) is connected with the end of drive sleeve I (6), described spring I (5) and spring II (15) are placed in drive sleeve I (6), the spring groove I butt that the two ends of described spring I (5) are provided with rotating ring II (14) and retainer (7) respectively, the spring groove II butt that the two ends of described spring II (15) are provided with drive sleeve II (3) and retainer (7) respectively.
3. by integrated form double mechanical seal claimed in claim 2, it is characterized in that: on the inwall of described drive sleeve I (6) and drive sleeve II (3), be respectively equipped with vertically groove I and groove II, on the outer wall of described drive sleeve II (3) and rotating ring II (14), be equipped with lug I and lug II, described lug I is connected with groove I inserting, and described lug II is connected with groove II inserting.
4. by integrated form double mechanical seal claimed in claim 2, it is characterized in that: between described spring I (5) and rotating ring II (14), be provided with throw-out collar (2).
5. by integrated form double mechanical seal claimed in claim 2, it is characterized in that: between described drive sleeve I (6) and drive sleeve II (3) and between rotating ring II (14) and retainer (7), be respectively equipped with rotating ring O-ring seals II (11) and rotating ring O-ring seals I (1), the outer wall of the inwall of described retainer (7) and stationary ring (9) is respectively equipped with retainer O-ring seals (4) and stationary ring O-ring seals (8).
6. by integrated form double mechanical seal claimed in claim 5, it is characterized in that: a side of described rotating ring O-ring seals II (11) is spacing by the limiting stopper of drive sleeve I (6) end, opposite side is spacing by baffle ring (12) and snap ring (13).
7. by the integrated form double mechanical seal described in claim 1-6 any one, it is characterized in that: on described retainer (7), be radially provided with the Cock screw (16) for being connected with revolving part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320801168.3U CN203594787U (en) | 2013-12-04 | 2013-12-04 | Integrated double-end-face mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320801168.3U CN203594787U (en) | 2013-12-04 | 2013-12-04 | Integrated double-end-face mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594787U true CN203594787U (en) | 2014-05-14 |
Family
ID=50675679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320801168.3U Withdrawn - After Issue CN203594787U (en) | 2013-12-04 | 2013-12-04 | Integrated double-end-face mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594787U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696517A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Integrated double mechanical seal |
| CN105422860A (en) * | 2014-09-19 | 2016-03-23 | 天津市富鑫达密封有限公司 | Novel mechanical sealing device with two radial end faces for kettle |
-
2013
- 2013-12-04 CN CN201320801168.3U patent/CN203594787U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696517A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Integrated double mechanical seal |
| CN105422860A (en) * | 2014-09-19 | 2016-03-23 | 天津市富鑫达密封有限公司 | Novel mechanical sealing device with two radial end faces for kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140514 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |