CN101162047A - Highly effective mechanically-sealing apparatus - Google Patents
Highly effective mechanically-sealing apparatus Download PDFInfo
- Publication number
- CN101162047A CN101162047A CNA2007101146640A CN200710114664A CN101162047A CN 101162047 A CN101162047 A CN 101162047A CN A2007101146640 A CNA2007101146640 A CN A2007101146640A CN 200710114664 A CN200710114664 A CN 200710114664A CN 101162047 A CN101162047 A CN 101162047A
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- air sac
- air bag
- air
- cavity
- mechanical seal
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Abstract
The invention relates to a mechanical seal device, in particular to an efficient mechanical seal device. The technical proposal of the invention is that a mechanical seal device is arranged outside a spindle; the mechanical seal device mainly comprises a seal casing, an air bag body and a gasket, wherein, the seal casing along the axial direction of the spindle is provided with an air bag seal cavity, one side of the seal casing is provided with a channel which is communicated with the air bag seal cavity; the air bag body is arranged inside the air bag seal cavity to match with the cavity; an outer end of the seal casing is fixed with the air bag body through the gasket and a gland nut; the air bag body and the spindle are firmly contacted under air pressure. The invention has the advantages that the air bag body and the spindle are firmly contacted under air pressure; the efficient mechanical seal device has simple structure, low cost, convenient installation and maintenance, and good seal effect; the air bag body can be conveniently changed through the detachable gasket; good economic benefit and social benefit are provided.
Description
One, technical field:
The present invention relates to a kind of mechanical seal device, particularly relate to a kind of highly effective mechanically-sealing apparatus.
Two, background technique:
Sealing is that mechanical industry is used very common part, its application is very extensive, Sealing commonly used is O type circle, outside framework oil seal, Y-shaped ring, mechanical seal etc., these Sealings are applied to the sealing position of distinct device, good sealing effect is all arranged, and mechanical seal is used on the equipment such as various pump classes, reactor more, but its complex structure, the cost height, the maintain and replace trouble.
Three, summary of the invention:
Purpose of the present invention is exactly the above-mentioned defective that exists at prior art, provides a kind of simple in structure, and cost is low, the highly effective mechanically-sealing apparatus of installation and maintenance convenience and good sealing effect.
Its technological scheme is: at the main shaft peripheral hardware mechanical seal device is arranged, described mechanical seal device mainly is made up of can, air sac, pad and gland nut, be provided with the air sac sealing cavity at described can along the axial direction of main shaft, one side of can is provided with the duct that communicates with the air sac sealing cavity, install the air sac that matches with cavity in the air sac sealing cavity, the outer end of can compresses air sac by pad and gland nut, and air sac closely contacts under air pressure with main shaft.
Described air sac is made up of air bag annular space, charging valve, and the air bag annular space is filled in the air sac sealing cavity and the center is provided with through hole and main shaft forms mechanical seal, and the charging valve of air bag is outside the duct reaches can.
Described air sac sealing cavity is the circular cone sealed cavity, the taper air bag of described air bag for matching with the circular cone sealed cavity.
Described air sac is provided with the air sac separating surface.
The invention has the beneficial effects as follows: air sac closely contacts under air pressure with main shaft, and it is simple in structure, and cost is low, convenient and the good sealing effect of installation and maintenance, by being provided with dismountable gland nut and pad, be convenient to the replacing of air sac, have good economic benefit and social benefit.
Four, description of drawings:
Accompanying drawing 1 is the structural representation of air sac of the present invention;
Accompanying drawing 2 is structural representations of air sac left view of the present invention;
Accompanying drawing 3 is structural representations of embodiments of the invention;
Among the figure: 1, charging valve, 2, the air bag annular space, 3, axis hole, 4, the air sac separating surface, 5, can, 6, pad, 7, gland nut, 8, main shaft, 9, bolt and pad, 10, machine case, 11, the O RunddichtringO.
Five, embodiment:
1-3 in conjunction with the accompanying drawings, the invention will be further described:
Its technological scheme is: at main shaft 8 peripheral hardwares mechanical seal device is arranged, described mechanical seal device mainly by can 5,
Air sac, pad 6 and gland nut 7 are formed, be provided with the air sac sealing cavity at described can 5 along the axial direction of main shaft 8, one side of can 5 is provided with the duct that communicates with the air sac sealing cavity, described air sac sealing cavity is the circular cone sealed cavity, the taper air sac of described air bag for matching with the circular cone sealed cavity, the outer end of can 5 is by gland nut 7 and pad 6 fixed air utricules, air sac closely contacts under air pressure with main shaft 8, and pad 6 centers are provided with axis hole 3 and are convenient to main shaft and pass.
Air sac is made up of air bag, air bag annular space 2, charging valve 1, and air bag annular space 2 is filled in the air sac sealing cavity and the center is provided with through hole and main shaft 8 forms mechanical seal, and the charging valve 1 of air bag is outside the duct reaches can 5.
During use, can 5 is loaded onto O RunddichtringO 11 also to be installed on the machine case 10 with bolt 9, air sac is packed in the can 5, cling at separating surface 4 place's gluings, put into pad 6, tighten gland nut 7, main shaft 8 penetrates wherein, charge into air with pump or other inflators in the air sac, guaranteeing has certain pressure between air bag inwall and the main shaft.
Working principle is: when machine run, to outflow, O type circle 11 does not flow out liquid the mating face sealing of machine 10 and seal casinghousing 5 to the liquid (as wet goods) in the machine along main shaft 8; To outflow, then air sac closely contacts under air pressure with main shaft, and liquid is not flow out, and has so just reached sealing effect along main shaft in the liquid continuation.
After main shaft and air sac wearing and tearing, the pressure of air can guarantee that still main shaft 8 closely contacts with air sac in the air sac, remains sealing state, so its sealing effect is good.
When air sac wears up to inefficacy, the air sac that need more renew.Change also very simply, only need gland nut 7 is backed out, pad 6 is withdrawed from, the air sac destructiveness that lost efficacy is taken off, with new changing, at air sac separating surface 4 place's gluings, compress.Push pad 6 again, tighten gland nut 7 and get final product.
The mechanical seal of this kind air sac type can make it to adapt to the diameter of axle requirement of different machines according to series standardized, the seriation of the diameter of axle.
Claims (4)
1. highly effective mechanically-sealing apparatus, at main shaft (8) peripheral hardware mechanical seal device is arranged, it is characterized in that: described mechanical seal device is mainly by can (5), air sac, pad (6) and gland nut (7) are formed, be provided with the air sac sealing cavity at described can (5) along the axial direction of main shaft (8), one side of can (5) is provided with the duct that communicates with the air sac sealing cavity, install the air sac that matches with cavity in the air sac sealing cavity, the outer end of can (5) is by pad (6) and gland nut (7) fixed air utricule, and air sac closely contacts under air pressure with main shaft (8).
2. highly effective mechanically-sealing apparatus according to claim 1, it is characterized in that: described air sac is made up of air bag annular space (2), charging valve (1), air bag annular space (2) is filled in the air sac sealing cavity and the center is provided with through hole and main shaft (8) forms mechanical seal, and the charging valve of air bag (1) is outside the duct reaches can (5).
3. highly effective mechanically-sealing apparatus according to claim 2 is characterized in that: described air sac sealing cavity is conical sealed cavity, the taper air bag of described air sac for matching with conical sealed cavity.
4. highly effective mechanically-sealing apparatus according to claim 1 is characterized in that: described air sac is provided with air sac separating surface (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101146640A CN101162047A (en) | 2007-11-27 | 2007-11-27 | Highly effective mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101146640A CN101162047A (en) | 2007-11-27 | 2007-11-27 | Highly effective mechanically-sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101162047A true CN101162047A (en) | 2008-04-16 |
Family
ID=39297016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101146640A Pending CN101162047A (en) | 2007-11-27 | 2007-11-27 | Highly effective mechanically-sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101162047A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205119A (en) * | 2018-09-14 | 2019-01-15 | 南京新核复合材料有限公司 | A kind of tank body inflation pressure maintaining sealing axis |
| CN111457095A (en) * | 2020-05-07 | 2020-07-28 | 王以军 | Double-thread sealing device of water pump turbine |
| CN113757434A (en) * | 2021-08-03 | 2021-12-07 | 唐山黑猫炭黑有限责任公司 | Bleeding valve in carbon black production line |
-
2007
- 2007-11-27 CN CNA2007101146640A patent/CN101162047A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205119A (en) * | 2018-09-14 | 2019-01-15 | 南京新核复合材料有限公司 | A kind of tank body inflation pressure maintaining sealing axis |
| CN111457095A (en) * | 2020-05-07 | 2020-07-28 | 王以军 | Double-thread sealing device of water pump turbine |
| CN113757434A (en) * | 2021-08-03 | 2021-12-07 | 唐山黑猫炭黑有限责任公司 | Bleeding valve in carbon black production line |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |