CN2929367Y - Narrow body mechanical seal - Google Patents
Narrow body mechanical seal Download PDFInfo
- Publication number
- CN2929367Y CN2929367Y CN 200620091459 CN200620091459U CN2929367Y CN 2929367 Y CN2929367 Y CN 2929367Y CN 200620091459 CN200620091459 CN 200620091459 CN 200620091459 U CN200620091459 U CN 200620091459U CN 2929367 Y CN2929367 Y CN 2929367Y
- Authority
- CN
- China
- Prior art keywords
- fixed
- mechanical seal
- ring
- narrow body
- axle sleeve
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 241000233855 Orchidaceae Species 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013023 gasketing Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
Abstract
A narrow body mechanical seal relates to an improvement of a sealing structure. The utility model provides a narrow mechanical seal which can be used in narrow space. The utility model discloses a rotating ring, quiet ring, its structural feature rotating ring passes through the bellows and links to each other with the fixed disk, and on the fixed disk was fixed in the axle sleeve that has the sealed pad of axial, quiet ring was provided with sealed the pad outward.
Description
Technical field:
The utility model relates to the improvement of sealing configuration.
Background technique:
At present, the skeleton rubber seal ring is mostly adopted in the sealing of using in narrow seal space, and the tightening force of skeleton rubber seal ring pressure that to be the magnitude of interference by cushion rubber sword limit and axle produce and spring reaches the sealing purpose to axle; Therefore, it is to axle and himself certain wearing and tearing are arranged all, has the shortcoming of weak point in working life, wearing and tearing axle.In addition, the skeleton rubber seal ring also is unsuitable for the shaft sealing of high temperature, high pressure.And common mechanical sealing axial dimension is bigger, can't use in narrow space.
The model utility content:
The utility model is exactly at the problems referred to above, provide a kind of can be in the narrow body mechanical seal of using than crawl space.
The utility model adopts following technological scheme: the utility model comprises rotating ring, stationary ring, and its structure outline rotating ring links to each other with fixed tray by bellows, and fixed tray is fixed on the axle sleeve with axial gasket, and stationary ring is outside equipped with sealing gasket.
The beneficial effects of the utility model:
Narrow body mechanical seal of the present utility model can be widely used in the axial seal of various rotating machineries in the equipment manufacture, is specially adapted to narrow sealings such as gear-box, water pump, line belt, stirrer.Working pressure: 30kg/cm
2, temperature: 350 ℃, linear velocity＜25m/s.
Multitest has been passed through in narrow body mechanical seal of the present utility model.Temperature on probation is 30kg/cm at 350 ℃, pressure
2The normal down operation of linear velocity 25m/s 3 months, sealing effect is good.Can in the narrow environment of seal space, replace reinforced seal and use, this narrow body mechanical seal, long service life, applied widely more reliable than general backbone sealing ring sealability.Also can replace general mechanical seal uses at pump class or other machinery.Can reduce the size of pump Seal cage like this, reduce the pump cost of production.Itself manufacture cost of narrow body mechanical seal is the 1/2-1/3 of common mechanical sealing manufacture cost just also, is desirable novel narrow body mechanical seal.
Narrow body mechanical seal of the present utility model is that an end of the bellows of thin stainless steel sheets punching press shearing welding processing is welded on the bellows fixed tray; The rectangular rotating seat of the other end and end face outer is welded together, and the rotating seat inboard is then inlayed rotating ring bellows fixed tray and is welded on the axle sleeve.Whole like this swivel assembly becomes one.Not only dwindle axial length, and reduce by a quiet leakage point than the conventional machinery sealing.In addition, bellows length is also dwindled relatively according to actual conditions, and the entire length of swivel assembly shortens greatly like this, and the shortest have only 7-9mm.The stationary ring of this narrow body mechanical seal also stationary ring than the conventional machinery sealing is thinner.The sealing of stationary ring adopts the rectangular shape rubber sheet gasketing to make the total length of stationary ring and rubber cushion in 5mm.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the narrow body mechanical seal among Fig. 1 and the structural representation of relevant portion;
Fig. 3 is the narrow body mechanical seal that high temperature, high pressure are used;
Fig. 4 is the structural representation of the wedge-type seal pad relevant portion among Fig. 3;
Fig. 5 is the schematic representation of the existing reinforced seal structure of using.
Embodiment:
The utility model comprises rotating ring 6, stationary ring 14, and rotating ring 6 links to each other with fixed tray 4 by bellows 5, and fixed tray 4 is fixed on the axle sleeve 17 with axial gasket 11, and stationary ring 14 is outside equipped with sealing gasket 7.
For increasing high temperature resistant, the high pressure ability of this practical mechanical seal, can be provided with wedge-type seal pad 26 in axle sleeve 17 outer ends; Wedge-type seal pad 26, axle sleeve 17 are outside equipped with and tighten up card orchid 22, tighten up outside the card blue 22 to be wild card orchid 23; Wild card orchid 23 is fixed on the fixed card orchid 24 by bolt 25; Stationary ring 14 is arranged on the stationary seat 18, and stationary seat 18 has the sealing gasket 20 of expanding ring 21, and stationary seat 18 can be fixed on the bearing gland 12 by screw 19.
Be provided with sealing gasket 10 between bearing gland 12 and the body.
Descend and accompanying drawings installation process of the present utility model:
The swivel assembly of the narrow body mechanical seal of the utility model (see figure 1) is integrally welded rotating ring 6, rotating seat 13, bellows 5, fixed tray 4.Factory's assembling the time on the inner side end of bearing gland 12, pack into rectangular shape sealing gasket 7 and stationary ring 14, again the rubbing surface of the rotating ring 6 of whole swivel assembly is packed in the cavity 3 of bearing gland 12 facing to the rubbing surface of stationary ring 14, welding axle sleeve 17 is fixed on positioning plate 8 on the axle sleeve 17 fixed card orchids 15 with positioning plate fixing bolt 9 with fixed card orchid 15 again on the axle sleeve 17 in bearing gland 12 outsides then.And be bumped into axial gasket 11 in the groove in axle sleeve 17.When installing so at the scene, the Sealing that assembles when dispatching from the factory is directly packed on the bearing housing, tightens bearing gland 12 fixing bolts on the bearing 2.With jackscrew 16 axle sleeve 17 is fixed on the axle again, simultaneously, unclamps positioning plate fixing bolt 9 and take off positioning plate 8.
Fig. 2 is that narrow body mechanical seal is applicable to that high temperature, hyperbaric environment use, and different with Fig. 1 is, and its axial gasket 11 and stationary ring 14 sealing backsides adopt soft metal U grommet type seal 20 and 26 sealings of wedge type sealing gasket, can high temperature resistant, high pressure.What its mounting type was different with Fig. 1 is that this mechanical seal comes sealing and fixing on axle 1 with axial clamping mode.
Claims (2)
1, narrow body mechanical seal, comprise rotating ring (6), stationary ring (14), it is characterized in that rotating ring (6) links to each other by the same fixed tray of bellows (5) (4), fixed tray (4) is fixed on the have axial gasket axle sleeve (17) of (11), and stationary ring (14) is outside equipped with sealing gasket (7).
2, narrow body mechanical seal according to claim 1 is characterized in that axle sleeve (17) outer end is provided with wedge-type seal pad (26); Wedge-type seal pad (26), axle sleeve (17) are outside equipped with and tighten up card blue (22), and tightening up card blue (22) outer is wild card orchid (23); Wild card orchid (23) is fixed on the fixed card orchid (24) by bolt (25); Stationary ring (14) is arranged on the stationary seat (18), and stationary seat (18) has the sealing gasket (20) of expanding ring (21), and stationary seat (18) is fixed on the bearing gland (12) by screw (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091459 CN2929367Y (en) | 2006-06-09 | 2006-06-09 | Narrow body mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091459 CN2929367Y (en) | 2006-06-09 | 2006-06-09 | Narrow body mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929367Y true CN2929367Y (en) | 2007-08-01 |
Family
ID=38307749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620091459 Expired - Fee Related CN2929367Y (en) | 2006-06-09 | 2006-06-09 | Narrow body mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929367Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696516A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Shaft sleeve-compensable packaging mechanical seal |
-
2006
- 2006-06-09 CN CN 200620091459 patent/CN2929367Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696516A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Shaft sleeve-compensable packaging mechanical seal |
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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: 20070801 |