CN203448194U - Sealing device of centrifugal machine main shaft - Google Patents
Sealing device of centrifugal machine main shaft Download PDFInfo
- Publication number
- CN203448194U CN203448194U CN201320514705.6U CN201320514705U CN203448194U CN 203448194 U CN203448194 U CN 203448194U CN 201320514705 U CN201320514705 U CN 201320514705U CN 203448194 U CN203448194 U CN 203448194U
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- CN
- China
- Prior art keywords
- lip
- admission hole
- air admission
- type packing
- shaped sealing
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Abstract
The utility model discloses a sealing device of a centrifugal machine main shaft. The sealing device comprises a main shaft, a protection sleeve and a gasket, wherein the protection sleeve and the gasket are arranged on the main shaft, a bearing is sleeved in a bearing seat on the main shaft, the end surface of the bearing seat is provided with a pressing cover, the inner side of the pressing cover is provided with a sealing sleeve and a spacing sleeve, a supporting ring a, a lip-shaped sealing ring a and a lip-shaped sealing ring b are arranged between the pressing cover and the sealing sleeve, and the lip-shaped sealing ring a and the lip-shaped sealing ring b are sleeved on the protection sleeve; a supporting ring b, a lip-shaped sealing ring c and a lip-shaped sealing ring d are arranged between the sealing sleeve and the spacing sleeve, and the lip-shaped sealing ring c and the lip-shaped sealing ring d are sleeved on the protection sleeve; a sealed cavity a is formed by the lip-shaped sealing ring a, the lip-shaped sealing ring b and the protection sleeve, a sealed cavity b is formed by the lip-shaped sealing ring b, the lip-shaped sealing ring c and the protection sleeve, and a sealed cavity c is formed by the lip-shaped sealing ring c, the lip-shaped sealing ring d and the protection sleeve. According to the sealing device disclosed by the utility model, the three sealed cavities are formed between the protection sleeve and a plurality of lip-shaped sealing rings, sterilization and disinfection on the lip-shaped sealing rings can be effectively realized by filling gases in different pressures into the three sealed cavities, and thus a centrifugal machine can work under a sterile environment.
Description
Technical field
The utility model relates to centrifuge, especially relates to a kind of centrifuge principal axis sealing device.
Background technology
Centrifuge is as a kind of solid-liquid separating equipment, use in the industries such as chemical industry, pharmacy in a large number, but, in the aseptic occasion of pharmacy or food service industry, also do not use in a large number at present centrifuges as solid-liquid separating equipment, the centrifuge that gnotobasis is used generally needs high temperature and high pressure steam to carry out sterilizing, sealing device is as the device of separating centrifugal chamber casing and lubricating chamber, just there is the problem of polluting in itself, the sealing device of most can not be realized effectively self sterilizing, thereby has restricted the application of centrifuge in aseptic industry.
Utility model content
The purpose of this utility model is to provide a kind of centrifuge principal axis sealing device, it
can effectively prevent that lubricating oil from leaking to rotary drum side, can solve the problem that centrifuge self can not effective sterilizing simultaneously.
The problem of the required solution of the utility model realizes by the following technical solutions:
Centrifuge principal axis sealing device, comprise main shaft, be arranged on sheath and packing ring on main shaft, main shaft one end is provided with rotary drum, bearing holder (housing, cover) is contained in the bearing block on main shaft, bearing block end face is provided with gland, it is characterized in that: gland inner side is provided with sealing shroud and spacer, is provided with support ring a and is sleeved on lip-type packing a, the lip-type packing b on sheath between described gland and sealing shroud; Between described sealing shroud and spacer, be provided with support ring b and be sleeved on lip-type packing c and the lip-type packing d on sheath; Lip-type packing a, lip-type packing b and sheath are formed with closed chamber a, and lip-type packing b, lip-type packing c and sheath are formed with closed chamber b, and lip-type packing c, lip-type packing d and sheath are formed with closed chamber c; Described gland is provided with air admission hole a, air admission hole b, air admission hole c, air admission hole d and outage a, outage b, and described air admission hole a, air admission hole b and outage a communicate with closed chamber a respectively; Described air admission hole c, outage b communicate with closed chamber b respectively, and described air admission hole d communicates with closed chamber c; Air admission hole a described in the utility model, air admission hole b, air admission hole c and air admission hole d communicate with air inlet pipe, and outage a, outage b communicate with discharging tube;
As optimization, described lip-type packing a and lip-type packing b are separately positioned on ，Qi upper end, support ring a both sides and support ring a contact position is provided with sealing ring; Between described packing ring and sheath, be also provided with spring; Described jacket surface is provided with anticorrosive anti-wear coating.
the utility model is by forming three closed chamber between sheath and some lip-type packings, three closed chamber communicate with the pore on gland respectively, by three closed chamber being passed into the gas of different pressures, can effectively realize lip-type packing is carried out to sterilization, can prevent that lubricating oil from leaking to rotary drum side, thereby centrifugal function is worked under gnotobasis simultaneously.
Accompanying drawing explanation
Figure 1 shows that structural representation of the present utility model;
Figure 2 shows that the C-C cutaway view of Fig. 1;
Figure 3 shows that the enlarged drawing of D part in Fig. 1;
In figure 1, main shaft, 2, sheath, 3, gland, 4, sealing shroud, 5, support ring a, 6, support ring b, 7, spacer, 8, lip-type packing a, 9, lip-type packing b, 10, lip-type packing c, 11, lip-type packing d, 12, packing ring, 13, spring, 14, bearing, 15, air inlet pipe, 16, rotary drum, 17, sealing ring, 18, air admission hole a, 19, air admission hole b, 20, air admission hole c, 21, air admission hole d, 22, outage a, 23, outage b, 24, bearing block, 25, discharging tube, 26, closed chamber a, 27, closed chamber b, 28, closed chamber c.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Centrifuge principal axis sealing device, comprise main shaft 1, be arranged on sheath 2 and packing ring 12 on main shaft 1, main shaft 1 one end is provided with rotary drum 16, bearing 14 is sleeved in the bearing block 24 on main shaft 1, bearing block 24 end faces are provided with gland 3, and gland 3 inner sides are provided with sealing shroud 4 and spacer 7, and 4 of described gland 3 and sealing shrouds are provided with support ring a5 and are sleeved on lip-type packing a8, the lip-type packing b9 on sheath 2; 7 of described sealing shroud 4 and spacers are provided with support ring b6 and are sleeved on lip-type packing c10 and the lip-type packing d11 on sheath 2; Lip-type packing a8, lip-type packing b9 and sheath 2 are formed with closed chamber a26, and lip-type packing b9, lip-type packing c10 and sheath 2 are formed with closed chamber b27, and lip-type packing c10, lip-type packing d11 and sheath 2 are formed with closed chamber c28; Described gland 3 is provided with air admission hole a18, air admission hole b19, air admission hole c20, air admission hole d21 and outage a22, outage b23, and described air admission hole a18, air admission hole b19 and outage a22 communicate with closed chamber a26 respectively; Described air admission hole c20, outage b23 communicate with closed chamber b27 respectively, and described air admission hole d21 communicates with closed chamber c28;
Air admission hole a18 described in the utility model, air admission hole b19, air admission hole c20 and air admission hole d21 communicate with air inlet pipe 15, and outage a22, outage b23 communicate with discharging tube 25;
As optimization, described lip-type packing a8 and lip-type packing b9 are separately positioned on ，Qi upper end, support ring a5 both sides and support ring a5 contact position is provided with sealing ring 17, has guaranteed air-tightness; 2 of described packing ring 12 and sheaths are also provided with spring 13; Described sheath 2 surfaces are provided with anticorrosive anti-wear coating, have greatly strengthened service life.
In the utility model normal operation situation, only need to through air admission hole a18 and air admission hole d21, pass into the gas slightly higher than rotary drum 16 side chamber pressures respectively to closed chamber a26 and closed chamber c28 by air inlet pipe 15 can effectively isolate the lubricating oil of bearing 14, thereby
can prevent that lubricating oil from leaking to rotary drum side.
When needs carry out steam sterilizing work to bowl 16 side cavitys, first by air admission hole c20 to closed chamber b27, and to rotary drum 16 side cavitys, passing into the gas that pressure is slightly larger than steam pressure simultaneously, the steam that is then passed into certain pressure by air admission hole b19 to closed chamber a26 carries out sterilization to it; Secondly, by air admission hole b19, to closed chamber a26, pass into the gas that pressure is slightly larger than steam pressure, then to rotary drum 16 side cavitys, pass into steam it is carried out to sterilizing; Again, by air admission hole c20, to closed chamber b27, pass into the gas that pressure is slightly larger than steam pressure, then to rotary drum 16 side cavitys and closed chamber a26, pass into steam simultaneously and carry out sterilization; Finally, to closed chamber a26 and closed chamber c28, pass into than the slightly high gas of rotary drum 16 side chamber pressure simultaneously, by above-mentioned flow process, can complete the abundant sterilizing works to sealing device, also can use as the main shaft seal of general occasion simultaneously.
Obviously; above-described embodiment of the present utility model is only for the utility model example is clearly described; but be not used for limiting scope of the present utility model; all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by every claim.
Claims (4)
1. centrifuge principal axis sealing device, comprise main shaft (1), be arranged on sheath (2) and packing ring (12) on main shaft (1), main shaft (1) one end is provided with rotary drum (16), bearing (14) is sleeved in the bearing block (24) on main shaft (1), bearing block (24) end face is provided with gland (3), it is characterized in that: gland (3) inner side is provided with sealing shroud (4) and spacer (7), between described gland (3) and sealing shroud (4), is provided with support ring a(5) and be sleeved on the lip-type packing a(8 on sheath (2)), lip-type packing b(9); Between described sealing shroud (4) and spacer (7), be provided with support ring b(6) and be sleeved on the lip-type packing c(10 on sheath (2)) and lip-type packing d(11); Lip-type packing a(8), lip-type packing b(9) and sheath (2) be formed with closed chamber a(26), lip-type packing b(9), lip-type packing c(10) with sheath (2) be formed with closed chamber b(27), lip-type packing c(10), lip-type packing d(11) and sheath (2) be formed with closed chamber c(28); Described gland (3) is provided with air admission hole a(18), air admission hole b(19), air admission hole c(20), air admission hole d(21) and outage a(22), outage b(23),
described air admission hole a(18), air admission hole b(19) and outage a(22) respectively with closed chamber a(26) communicate; Described air admission hole c(20), outage b(23) respectively with closed chamber b(27) communicate, described air admission hole d(21) with closed chamber c(28) communicate;described air admission hole a(18), air admission hole b(19), air admission hole c(20) and air admission hole d(21) be connected with air inlet pipe (15), outage a(22), outage b(23) be connected with discharging tube (25).
2. a kind of centrifuge principal axis sealing device according to claim 1, it is characterized in that: described lip-type packing a(8) and lip-type packing b(9) be separately positioned on support ring a(5) ，Qi upper end, both sides and support ring a(5) contact position is provided with sealing ring (17).
3. a kind of centrifuge principal axis sealing device according to claim 1, is characterized in that: between described sheath (2) and packing ring (12), be provided with spring (13).
4. a kind of centrifuge principal axis sealing device according to claim 1, is characterized in that: described sheath (2) surface is provided with anticorrosive anti-wear coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320514705.6U CN203448194U (en) | 2013-08-22 | 2013-08-22 | Sealing device of centrifugal machine main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320514705.6U CN203448194U (en) | 2013-08-22 | 2013-08-22 | Sealing device of centrifugal machine main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203448194U true CN203448194U (en) | 2014-02-26 |
Family
ID=50128099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320514705.6U Withdrawn - After Issue CN203448194U (en) | 2013-08-22 | 2013-08-22 | Sealing device of centrifugal machine main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203448194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447165A (en) * | 2013-08-22 | 2013-12-18 | 江苏赛德力制药机械制造有限公司 | Main shaft sealing device of centrfugal machine |
| CN106984445A (en) * | 2017-05-22 | 2017-07-28 | 江苏赛德力制药机械制造有限公司 | A kind of runner assembly of centrifuge |
-
2013
- 2013-08-22 CN CN201320514705.6U patent/CN203448194U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447165A (en) * | 2013-08-22 | 2013-12-18 | 江苏赛德力制药机械制造有限公司 | Main shaft sealing device of centrfugal machine |
| CN103447165B (en) * | 2013-08-22 | 2015-07-22 | 江苏赛德力制药机械制造有限公司 | Main shaft sealing device of centrfugal machine |
| CN106984445A (en) * | 2017-05-22 | 2017-07-28 | 江苏赛德力制药机械制造有限公司 | A kind of runner assembly of centrifuge |
| CN106984445B (en) * | 2017-05-22 | 2019-08-09 | 江苏赛德力制药机械制造有限公司 | A kind of runner assembly of centrifuge |
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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: 20140226 Effective date of abandoning: 20150722 |
|
| RGAV | Abandon patent right to avoid regrant |