CN209325041U - The main shaft sealing construction of centrifuge - Google Patents
The main shaft sealing construction of centrifuge Download PDFInfo
- Publication number
- CN209325041U CN209325041U CN201822119897.6U CN201822119897U CN209325041U CN 209325041 U CN209325041 U CN 209325041U CN 201822119897 U CN201822119897 U CN 201822119897U CN 209325041 U CN209325041 U CN 209325041U
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- ring
- main shaft
- metal
- bearing
- sealing
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a kind of good seal performance, it can be used for the main shaft sealing construction of the centrifuge with corrosive gas or flammable explosive gas, including main shaft mounting base, main shaft is equipped with by the rotation of upper and lower two groups of bearing groups in main shaft mounting base, drum assembly is arranged on main shaft, steam line is equipped in main shaft mounting base, upper bearing (metal) outer ring gland and upper bearing (metal) inner ring positioning ring are equipped on upper bearing (metal) group top on the main shaft, upper bearing (metal) outer ring gland medial surface is equipped with annular mounting groove, is equipped with gas pipeline in the gland of upper bearing (metal) outer ring；Ring skeleton sealing ring and air inlet ring are equipped in annular mounting groove, air inlet ring outer wall is equipped with annular groove, several air inlets being arranged radially circumferentially are evenly equipped on air inlet ring, air inlet ring top is equipped with upper sealing gasket, the rotation direction screw thread contrary with main axis is equipped on the inside of upper sealing gasket, upper bearing (metal) outer ring gland is equipped with the locating cover for being pressed together upper sealing gasket, air inlet ring, ring skeleton sealing ring.
Description
Technical field
The utility model relates to a kind of main shaft sealing constructions of centrifuge.
Background technique
The complexity of centrifuge conditions, when separating the material with corrosive gas, if the outside framework oil seal of main shaft fails,
Various corrosive gas are once necessarily will affect the service life of the even entire transmission system of bearing into bearing bore；Have in separation
When solvent, organic solvent will affect the service life of outside framework oil seal, and organic solvent is once necessarily will affect biography into bearing bore
The explosion-proof security and service life of dynamic system；When separating some other inflammable and explosive material, if explosion hazard gases enters master
The bearing portion of axis, bearing is since the temperature that runs at high speed is higher, and there are security risks, influences the reliability and safety of centrifuge
Property.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of good seal performance, it can be used for band corrosive gas
Or the main shaft sealing construction of the centrifuge of flammable explosive gas.
In order to solve the above technical problems, the technology employed by the present utility model is the main shaft sealing construction of centrifuge,
Including main shaft mounting base, main shaft is equipped with by the rotation of upper and lower two groups of bearing groups in main shaft mounting base, is arranged with rotary drum on main shaft
Component, is equipped with the steam line for being passed through nitrogen or inert gas in main shaft mounting base, on upper bearing (metal) group top on the main shaft
Equipped with upper bearing (metal) outer ring gland and upper bearing (metal) inner ring positioning ring, lower axle pressure cap is equipped with under in the lower part of lower bearing group on main shaft
Bearing inner race positioning ring is equipped with positioning ring between upper bearing (metal) group and lower bearing group, upper bearing (metal) outer ring gland is close to the inside of main shaft
Face is equipped with annular mounting groove, and the gas pipeline of connection steam line and annular mounting groove is equipped in the gland of upper bearing (metal) outer ring；Ring
Ring skeleton sealing ring and air inlet ring are from bottom to top equipped in shape mounting groove, in the inner wall and upper bearing (metal) of ring skeleton sealing ring
Circle positioning ring fits, and is equipped with annular groove in the position for corresponding to gas pipeline on air inlet ring outer wall, corresponds to ring on air inlet ring
Several air inlets being arranged radially circumferentially are evenly equipped at shape slot, air inlet ring top is equipped with upper sealing gasket, upper sealing gasket inside
Equipped with the rotation direction screw thread contrary with main axis, upper bearing (metal) outer ring gland is equipped with upper sealing gasket, air inlet ring, annular
The locating cover that backbone sealing ring is pressed together, lower axle pressure cap and lower bearing inner ring positioning interannular are equipped with lower seal.
As a preferred solution, the main shaft mounting base includes outer seat and is embedded in tubular inner seat wherein, institute
It states steam line to be threaded through in outer seat, the part that tubular inner seat top is pierced by outer seat is equipped with the positioning connecting with outer seat and connects
Connect ring.
As a preferred solution, upper bearing (metal) outer ring gland is located on the steam line and is located by connecting between ring
It is arranged with sealing shroud on part, is equipped with sealing ring between sealing shroud and steam line, under sealing shroud and upper bearing (metal) outer ring gland
Sealing ring also is provided between surface.
The beneficial effects of the utility model are: due to being passed through nitrogen or inert gas at centrifuge principal axis bearing, due to
It is equipped with the rotation direction screw thread contrary with main axis on the inside of upper sealing gasket, forces uninterrupted introducing nitrogen or inert gas warp
The chamber that outside framework oil seal upper channel enters between metal (upper group is crossed, avoids the gas inside centrifuge from invading, to protect
The drive cavity of centrifuge is not corroded by various organic solvents and corrosive gas, is also avoided the entrance of flammable explosive gas, is mentioned
The safety and reliability that high centrifuge uses.
Since main shaft mounting base includes outer seat and is embedded in tubular inner seat wherein, the steam line is threaded through outer seat
In body, the part that tubular inner seat top is pierced by outer seat is equipped with the ring that is located by connecting connecting with outer seat, so that main shaft mounting base
Processing be relatively easy to, reduce processing cost.
Due to being arranged with sealing shroud on the part on steam line between upper bearing (metal) outer ring gland and the ring that is located by connecting,
It is equipped with sealing ring between sealing shroud and steam line, also is provided with sealing between sealing shroud and the lower surface of upper bearing (metal) outer ring gland
Circle, so that the connection of steam line and gas pipeline on the gland of upper bearing (metal) outer ring is more reliable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial enlargement structural representation of Fig. 1.
Fig. 1 is into Fig. 2: 1. main shaft mounting bases, 101. outer seats, 102. tubular inner seats, and 103. are located by connecting ring, 2. bearings
Group, 3. main shafts, 4. drum assemblies, 5. steam lines, 6. upper bearing (metal) outer ring glands, 61. gas pipelines；7. upper bearing (metal) inner ring positions
Ring, 8. lower axle pressure caps, 9. lower bearing inner ring positioning rings, 10. positioning rings, 11. sealing shrouds, 12. sealing rings, 13. sealing rings,
14. backbone sealing ring, 15. air inlet rings, 151. air inlets, 16. upper sealing gaskets, 17. locating covers, 18. lower seals.
Specific embodiment
With reference to the accompanying drawing, the specific embodiment of the utility model is described in detail.
As shown in Figs. 1-2,3 sealing structure of main shaft of centrifuge, including main shaft mounting base 1, by upper in main shaft mounting base 1
Lower two groups of bearing groups 2 rotation is equipped with main shaft 3, and drum assembly 4 is arranged on main shaft 3, and main shaft mounting base 1 includes outer seat 101
And it is embedded the steam line 5 for being equipped in tubular inner seat 102 wherein, outer seat 101 and being passed through nitrogen or inert gas, tubular
The part that 102 top of inner seat is pierced by outer seat 101 is equipped with the ring 103 that is located by connecting connecting with outer seat.
Upper bearing (metal) outer ring gland 6 and upper bearing (metal) inner ring positioning ring 7, main shaft 3 are equipped on upper bearing (metal) group top on the main shaft 3
On the lower part of lower bearing group be equipped with lower axle pressure cap 8 and lower bearing inner ring positioning ring 9, set between upper bearing (metal) group and lower bearing group
There is a positioning ring 10, upper bearing (metal) outer ring gland 6 is equipped with annular mounting groove close to the medial surface of main shaft 3, in upper bearing (metal) outer ring gland 6
Gas pipeline 61 equipped with connection steam line 5 and annular mounting groove；It is located at upper bearing (metal) outer ring gland 6 on steam line 5 and determines
It is arranged with sealing shroud 11 on part between the connection ring 103 of position, sealing ring 12 is equipped between sealing shroud 11 and steam line 5, it is close
Sealing ring 13 also is provided between big envelope 11 and the lower surface of upper bearing (metal) outer ring gland 6.
Ring skeleton sealing ring 14 and air inlet ring 15, ring skeleton sealing ring 14 are from bottom to top equipped in annular mounting groove
Inner wall fit with upper bearing (metal) inner ring positioning ring 7, on 15 outer wall of air inlet ring correspond to gas pipeline 61 position be equipped with ring
Shape slot corresponds on air inlet ring 15 at annular groove and is circumferentially evenly equipped with several air inlets being arranged radially, and 15 top of air inlet ring is equipped with
Upper sealing gasket 16 is equipped with the rotation direction screw thread opposite with 3 rotation direction of main shaft, upper bearing (metal) outer ring gland on the inside of upper sealing gasket 16
6 are equipped with the locating cover 17 for being pressed together upper sealing gasket 16, air inlet ring 15, ring skeleton sealing ring 14, lower axle pressure-bearing
Lower seal 18 is equipped between lid 8 and lower bearing inner ring positioning ring 9.
The principles and effects of the invention, and the implementation that part uses only is illustrated in the above embodiments
Example, rather than limits the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from this hair
Under the premise of bright concept, various modifications and improvements can be made, and these are all within the protection scope of the present invention.
Claims (3)
- Pass through upper and lower two groups of bearing groups 1. the main shaft sealing construction of centrifuge, including main shaft mounting base, in main shaft mounting base to rotate It is equipped with main shaft, drum assembly is arranged on main shaft, the air supply pipe for being passed through nitrogen or inert gas is equipped in main shaft mounting base Road is equipped with upper bearing (metal) outer ring gland and upper bearing (metal) inner ring positioning ring on upper bearing (metal) group top on the main shaft, in lower axle on main shaft The lower part for holding group is equipped with lower axle pressure cap and lower bearing inner ring positioning ring, and positioning ring is equipped between upper bearing (metal) group and lower bearing group, It is characterized by: upper bearing (metal) outer ring gland is equipped with annular mounting groove, upper bearing (metal) outer ring gland close to the medial surface of main shaft The interior gas pipeline for being equipped with connection steam line and annular mounting groove；Ring skeleton is from bottom to top equipped in annular mounting groove to seal Circle and air inlet ring, inner wall and the upper bearing (metal) inner ring positioning ring of ring skeleton sealing ring fit, in correspondence on air inlet ring outer wall It is equipped with annular groove in the position of gas pipeline, corresponds at annular groove on air inlet ring and is circumferentially evenly equipped with several air inlets being arranged radially Hole, air inlet ring top are equipped with upper sealing gasket, the rotation direction screw thread contrary with main axis are equipped on the inside of upper sealing gasket, on Bearing outer ring gland is equipped with the locating cover for being pressed together upper sealing gasket, air inlet ring, ring skeleton sealing ring, lower bearing Gland and lower bearing inner ring positioning interannular are equipped with lower seal.
- 2. the main shaft sealing construction of centrifuge as described in claim 1, it is characterised in that: the main shaft mounting base includes outer seat It body and is embedded in tubular inner seat wherein, the steam line is threaded through in outer seat, and tubular inner seat top is pierced by outer seat Part is equipped with the ring that is located by connecting connecting with outer seat.
- 3. the main shaft sealing construction of centrifuge as claimed in claim 2, it is characterised in that: be located at upper axis on the steam line It is arranged with sealing shroud on part between bearing outer-ring gland and the ring that is located by connecting, sealing is equipped between sealing shroud and steam line Circle, also is provided with sealing ring between sealing shroud and the lower surface of upper bearing (metal) outer ring gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119897.6U CN209325041U (en) | 2018-12-17 | 2018-12-17 | The main shaft sealing construction of centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119897.6U CN209325041U (en) | 2018-12-17 | 2018-12-17 | The main shaft sealing construction of centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209325041U true CN209325041U (en) | 2019-08-30 |
Family
ID=67727168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822119897.6U Active CN209325041U (en) | 2018-12-17 | 2018-12-17 | The main shaft sealing construction of centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209325041U (en) |
-
2018
- 2018-12-17 CN CN201822119897.6U patent/CN209325041U/en active Active
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