CN204922002U - High pressure resistant mechanical seal of brachmorphy - Google Patents
High pressure resistant mechanical seal of brachmorphy Download PDFInfo
- Publication number
- CN204922002U CN204922002U CN201520726581.7U CN201520726581U CN204922002U CN 204922002 U CN204922002 U CN 204922002U CN 201520726581 U CN201520726581 U CN 201520726581U CN 204922002 U CN204922002 U CN 204922002U
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- spring
- seat
- rotating seat
- rotating
- high pressure
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Abstract
The utility model provides a high pressure resistant mechanical seal of brachmorphy, including the rotating seat, the rotating ring, a spring, the spring holder, the installation end close -fitting of rotating ring is in the inner of rotating seat, outer the registrating on the spring holder of outer end activity of rotating seat, be equipped with on the spring holder spring holder fastening on the rotation axis and the head is arranged in the fastener in the rotating seat outer end rectangular hole of axial, the spring is wave spring, wave spring acts on on spring holder and the rotating seat and wave spring's both ends are tight respectively supports in the spring holder spacing wall in tip and the rotating seat, still be equipped with between the inside wall of rotating seat and the lateral wall of spring holder and adorn on the rotating seat inside wall and the relative gliding movable sealing ring of spring holder, the diameter of movable sealing ring's sliding point place circle is more than or equal to the actual friction surface interior diameter of rotating ring and is less than the actual friction surface external conjugate diameter of rotating ring. High pressure resistant mechanical seal of brachmorphy axial dimensions is short high pressure resistant again.
Description
Technical field
The utility model relates to technical field of mechanical, specifically refers to the high pressure resistant mechanical seal of a kind of brachmorphy.
Background technique
Mechanical seal, also known as end face seal, is mainly used in the sealing of running shaft of pump, reactor, compressor, hydraulic transmission and other similar devices.The form of mechanical seal has multiple, there are high voltage bearing balanced mechanical seal and unbalanced type mechanical seal, and although comparatively common balanced mechanical seal is high pressure resistant, but overall axial length is longer, although but not the form that balanced mechanical seal has overall axial length shorter, not high pressure resistant.
For this reason, how compact the and sealed environment of high pressure for some axial installing spaces, design a kind of not only high pressure resistant but also to have compared with the balanced mechanical seal of short axial length be technical problem in the urgent need to address in industry.
Model utility content
The technical problems to be solved in the utility model is, provides the short high voltage bearing brachmorphy again of a kind of axial dimension high pressure resistant mechanical seal.
For solving the problems of the technologies described above, the technological scheme that the utility model provides is: comprise rotating seat, rotating ring, spring, spring seat, the mounting end close-fitting of described rotating ring is in the inner of rotating seat, the outer end moving sleeve of described rotating seat is combined on spring seat, described spring seat is provided with the fastening piece that spring seat is on the rotary shaft fastening and head is arranged in the axial strip hole of rotating seat outer end, described spring is wavy spring, described wavy spring acts on spring seat and rotating seat and the two ends of wavy spring are tight against limited wall in spring seat inner end and rotating seat respectively, also be provided with between the madial wall of described rotating seat and the outer side wall of spring seat and be loaded on rotating seat madial wall and the dynamic seal ring that slides of opposed spring seats, the sliding point place diameter of a circle of described dynamic seal ring is more than or equal to rotating ring actual rubbing surface inner diameter and is less than the actual rubbing surface outer diameter of rotating ring.
Described fastening piece is Cock screw, and Cock screw fastening effect is good, and is easy to buy.
Described axial strip hole is axial slotted hole, and axial slotted hole two ends are mellow and full, few to Cock screw wearing and tearing.
The high pressure resistant mechanical seal of brachmorphy of the present utility model, pass through rotating seat, rotating ring, spring, being equipped with of spring seat, compared to existing technologies, particularly adopt wavy spring as elastic member, effectively reduce the axial length of whole mechanical seal, overall structure closely, rationally, and the sliding point place diameter of a circle of dynamic seal ring is more than or equal to rotating ring actual rubbing surface inner diameter and is less than the actual rubbing surface outer diameter of rotating ring, result in formation of high voltage bearing balanced mechanical seal structure, make the very applicable axial installing space of the high pressure resistant mechanical seal of brachmorphy of the present utility model compact and the sealed environment of high pressure.
Accompanying drawing explanation
Accompanying drawing is the sectional structure schematic diagram of the high pressure resistant mechanical seal of brachmorphy of the present utility model.
Shown in the utility model figure: 1 rotating seat, limited wall in 1.1,2 rotating rings, 3 springs, 4 spring seats, 5 running shafts, 6 axial strip holes, 7 fastening pieces, 8 dynamic seal rings, 9 stationary rings, 10 stationary seats.
The sliding point place diameter of a circle of D dynamic seal ring, the actual rubbing surface inner diameter of D1 rotating ring, the actual rubbing surface outer diameter of D2 rotating ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in the figure, the high pressure resistant mechanical seal of brachmorphy of the present utility model, comprise rotating seat 1, rotating ring 2, spring 3, spring seat 4, certainly, the stationary seat 10 that the high pressure resistant mechanical seal of whole brachmorphy also comprises stationary ring 9 and installs for stationary ring 9, wherein rotating ring and stationary ring end face seal coordinate, rotating seat, rotating ring, spring seat, spring, stationary ring, stationary seat are all set on running shaft 5, and rotating seat, rotating ring, spring seat, spring rotate together with running shaft 5, and stationary ring and stationary seat be connected relative rotation axi 5 with pump case static.
Unlike the prior art, the mounting end close-fitting of described rotating ring 2 is in the inner of rotating seat 1, the outer end moving sleeve of described rotating seat 1 is combined on spring seat 4, described spring seat 4 is provided with and spring seat 4 is fastened on the fastening piece 7 that head on running shaft 5 is arranged in the axial strip hole 6 in rotating seat 1 outer end, in the present embodiment, described axial strip hole 6 is axial slotted hole, and fastening piece 7 is Cock screw, now the head of Cock screw is positioned at axial slotted hole, under external force, rotating seat is moved by axial slotted hole opposed spring seats.
Described spring 3 is wavy spring, described wavy spring acts on spring seat 4 and rotating seat 1 and the two ends of wavy spring are tight against limited wall 1.1 in spring seat 4 inner end and rotating seat 1 respectively, is also provided with and is loaded on rotating seat 1 madial wall and the dynamic seal ring 8 that slides of opposed spring seats 4 between the madial wall of described rotating seat 1 and the outer side wall of spring seat 4.The sliding point place diameter of a circle D of described dynamic seal ring 8 is more than or equal to rotating ring 2 actual rubbing surface inner diameter D1 and is less than rotating ring actual rubbing surface outer diameter D2.
The high pressure resistant mechanical seal of brachmorphy of the present utility model adopts wavy spring as elastic member, overall axial dimension is little, compact structure, rationally, and defines balanced mechanical seal structure, high-pressure medium environment can be adapted to, be very applicable to high pressure and the compact sealed environment of axial installing space.
Claims (3)
1. the high pressure resistant mechanical seal of brachmorphy, comprise rotating seat (1), rotating ring (2), spring (3), spring seat (4), it is characterized in that: the mounting end close-fitting of described rotating ring (2) is in the inner of rotating seat (1), the outer end moving sleeve of described rotating seat (1) is combined on spring seat (4), described spring seat (4) is provided with and spring seat (4) is fastened on the fastening piece (7) that head on running shaft (5) is arranged in the axial strip hole (6) in rotating seat (1) outer end, described spring (3) is wavy spring, described wavy spring acts on spring seat (4) and rotating seat (1) is upper and the two ends of wavy spring are tight against spring seat (4) inner end and rotating seat (1) interior limited wall (1.1) respectively, also be provided with between the madial wall of described rotating seat (1) and the outer side wall of spring seat (4) and be loaded on rotating seat (1) madial wall and the dynamic seal ring (8) that slides of opposed spring seats (4), sliding point place diameter of a circle (D) of described dynamic seal ring (8) is more than or equal to rotating ring (2) actual rubbing surface inner diameter (D1) and is less than the actual rubbing surface outer diameter (D2) of rotating ring.
2. the high pressure resistant mechanical seal of brachmorphy according to claim 1, is characterized in that: described fastening piece (7) is Cock screw.
3. the high pressure resistant mechanical seal of brachmorphy according to claim 2, is characterized in that: described axial strip hole (6) is axial slotted hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726581.7U CN204922002U (en) | 2015-09-18 | 2015-09-18 | High pressure resistant mechanical seal of brachmorphy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726581.7U CN204922002U (en) | 2015-09-18 | 2015-09-18 | High pressure resistant mechanical seal of brachmorphy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922002U true CN204922002U (en) | 2015-12-30 |
Family
ID=54971131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520726581.7U Active CN204922002U (en) | 2015-09-18 | 2015-09-18 | High pressure resistant mechanical seal of brachmorphy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922002U (en) |
-
2015
- 2015-09-18 CN CN201520726581.7U patent/CN204922002U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 65, Mingke Road, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province, 315191 Patentee after: Ningbo Tiangong Fluid Technology Co.,Ltd. Country or region after: China Address before: No. 18 High Voltage Road, Science and Technology Park, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province, 315191 Patentee before: NINGBO TIANGONG MACHINERY SEALING CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |