CN203656193U - Bearing isolator - Google Patents
Bearing isolator Download PDFInfo
- Publication number
- CN203656193U CN203656193U CN201320871271.5U CN201320871271U CN203656193U CN 203656193 U CN203656193 U CN 203656193U CN 201320871271 U CN201320871271 U CN 201320871271U CN 203656193 U CN203656193 U CN 203656193U
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- CN
- China
- Prior art keywords
- ring
- isolator
- sealing
- bearing
- poor
- 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 - Lifetime
Links
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 abstract description 21
- 238000007789 sealing Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 210000002268 wool Anatomy 0.000 abstract description 2
- 244000126211 Hericium coralloides Species 0.000 abstract 2
- 239000000314 lubricant Substances 0.000 description 8
- 208000002925 dental caries Diseases 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Sealing Of Bearings (AREA)
Abstract
The utility model provides a bearing isolator and relates to a sealing device. Problem of low precision of sealing size, poor sealing effects, poor stability and poor adaptive capacity to working conditions, serious leakage of lubricating oil, and short service life during operation of a felt collar oil seal are solved for a current pump body end cover which is sealed by sealing structure made of a felt collar ring which is made of belt-shaped half-thick wool felt. The bearing isolator is formed by a static ring and a moving ring; a mutually-interlaced comb-tooth shape is formed between the moving ring and the static ring which are in clearance fit with each other. The bearing isolator is compact in structure, the moving ring and the static ring are an integrated whole, and the mutually-interlaced comb-tooth shape is formed in the isolator, so sealing effect is good; an built-in packing seal installation method can be adopted without restriction on installation methods, so the isolator is completely compatible to a current device; and externally-mounted method can be adopted, so the isolator is convenient to disassemble and assemble; and the service lifetime of the isolator is more than 50000 hours.
Description
Technical field
The utility model relates to a kind of seal arrangement, specifically relates to the bearing isolator on a kind of oil transfer pump.
background technique
Known pump housing end cap, what sealing adopted is felt circle sealing configuration and form.Felt collar material is banded half common and braid wool felt, make by hand, closure size precision is not high, and the on-stream sealing effect that exists of felt collar oil sealing is poor, and the adaptive capacity of poor stability and operating mode is poor, seepage lubricant oil is serious, simultaneously felt collar oil sealing easily damages, and causes Seal in Bearing Box not tight, and easy to wear, the fragile and journal wear of bearing housing packing seal used causes poorly sealed, cause oil seepage, strengthened lubricant oil and added frequency; Make the part of fuel oil seepage of mechanical seal normal leakage enter bearing housing, pollute gear-bearing lubricant oil, shortened Working Life of Lubricating Oil, accelerated oil change frequency, increased cost of production.What the sealing configuration of outside framework oil seal adopted is quality separation principle, by leak fluid simply being blocked with direct contact of axle.Such principle shortcoming is that the lip of oil sealing can produce wearing and tearing, and the life-span is shorter.The oil sealing of same size is using several all after dates, and because axle journal position has also produced larger wearing and tearing, then when the oil sealing of same specification is installed, sealing effect is poor, easy to leak.In routine use discovery bearing housing lubricant oil color variable color (black brown) in recent years, on average, about one month, cause lubricant oil life cycle short, greatly shorten lubricant oil normal service life, strengthen cost of production.Seepage causes pump housing poor hygienic; When pump maintenance, crude oil, moisture, impurity easily enter lubricating oil tank, cause deterioration of lubricant, and bearing bush temperature raises, and makes the safe operation of oil transfer pump have hidden danger.
Summary of the invention
The purpose of this utility model is a kind of good sealing effect proposing for above-mentioned deficiency, easy accessibility, the bearing isolator of long service life.
Technical solution of the present utility model is: isolator is made up of stationary ring and rotating ring, is interlaced " broach " shape and adopts Spielpassung to connect between dynamic and static ring.
Between dynamic and static ring described in technical solution of the present utility model, be provided with the O type circle that floats, the O type circle that floats is arranged in the lock buckling groove of stationary ring and rotating ring.
The outer ring of the stationary ring described in technical solution of the present utility model is provided with stationary ring O type circle, and the inner ring of rotating ring is provided with rotating ring O type circle.
The utility model
havefollowing advantage:
I, compact structure, dynamic and static ring is an entirety completely, the oil sealing of the complete compatible existing GB of installation dimension energy and international standard, is the ideal substitute of filler oil sealing;
II, the maximum linear velocity that uses can exceed 160m/s.The full symmetric formula design of rotating ring cross section has thoroughly solved " vibration " under High Rotation Speed;
III, seal leakage fluid adopt the double action of quality isolation and degradation of energy.First fundamentally reduce the dynamics energy of fluid leakage, introducing again flexibility " broach " design concept, present interlaced " broach " in isolator inside and reached the effect that quality seals;
IV, mounting type are not limited, can adopt the same built-in type of packing seal to install, and reach the complete compatibility with existing equipment; Can adopt again external mounted to install, facilitate the dismounting of isolator;
V, can be used in operating mode with pressure (≤0.5MPa), be that the optimal isolation device that the bearing housings such as oil mist lubrication bearing use is selected;
VI, long service life, the design concept of non-contact theory not only makes product can do running, and working life is more than 50000 hours.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged view of I in Fig. 1.
Embodiment
As Fig. 1, shown in 2, bearing isolator of the present utility model is made up of stationary ring 2 and rotating ring 5, stationary ring 2 adopts alloyed steel 1Cr18Ni9Ti to process, rotating ring 5 materials are H90, moving, stationary ring 5, between 2, adopt Spielpassung to connect, moving, stationary ring 5, between 2, be interlaced " broach " shape, moving, stationary ring 5, between 2, be provided with the O type circle 3 that floats, the O type circle 3 that floats is arranged in the lock buckling groove of stationary ring 2 and rotating ring 5, in the time that rotating, the pump housing forms snap close between rotating ring 5 and stationary ring 2, anti-stop ring 5 axial displacements, and can absorb pump shaft 8 axial string momentums, on the outer ring of stationary ring 2, be provided with stationary ring O type circle 1, be used for the sealing between bearing box end cap 7, the inner ring of rotating ring 5 is provided with rotating ring O type circle 4, for and the interior pump shaft 8 of bearing housing 6 between sealing, dynamic and static ring O type circle 4,1 adopts fourth rubber material to make, when the utility model is installed, in bearing box end cap 7, be provided with a cavity matching with the utility model isolator profile, the utility model is pressed into by static(al) in this cavity of bearing box end cap 7, the outer ring of stationary ring 2 and bearing box end cap 7 cavitys are interference fit, stationary ring 2 is Spielpassung with pump shaft 8, when installation, seal chamber and pump shaft 8 should be cleaned up, seal ring should be coated with lubricating grease, cavity and pump shaft 8 should be smeared suitable lubricant oil and be convenient to install, and when installation, static(al) is evenly pressed into cavity, rotating ring O type circle 4 is housed between rotating ring 5 and pump shaft 8, between pump shaft 8 and rotating ring 5, form static seal, rotating ring 5 is interference fit with pump shaft 8, rotating ring 5 is fixed on pump shaft 8 and rotates together with pump shaft 8, and rotating ring 5 is Spielpassung with bearing box end cap 7 cavitys and stationary ring 2, between rotating ring 5 and stationary ring 2 and bearing box end cap 7 cavitys, isolate and the double action of degradation of energy by quality.First fundamentally reduce the dynamics energy of fluid leakage, more reached the effect of quality sealing by rotating ring 5,2 interlaced " broach " of formation of stationary ring; Isolator integral installation of the present utility model, after bearing box end cap 7 cavitys, is pushed into bearing housing 6 two ends by bearing box end cap 7 and isolator of the present utility model through pump shaft 8 static(al)s; Again bearing box end cap 7 is bolted on bearing housing 6.After installation, answer jiggering to determine and have no abnormal sound or clamping stagnation.
Claims (3)
1. a bearing isolator, is characterized in that: isolator is made up of stationary ring (2) and rotating ring (5), is interlaced " broach " shape and adopts Spielpassung to connect between dynamic and static ring (5,2).
2. a kind of bearing isolator according to claim 1, is characterized in that: between described dynamic and static ring (5,2), be provided with the O type circle (3) that floats, the O type circle (3) that floats is arranged in the lock buckling groove of stationary ring (2) and rotating ring (5).
3. a kind of bearing isolator according to claim 1, is characterized in that: the outer ring of described stationary ring (2) is provided with stationary ring O type circle (1), and the inner ring of rotating ring (5) is provided with rotating ring O type circle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871271.5U CN203656193U (en) | 2013-12-27 | 2013-12-27 | Bearing isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871271.5U CN203656193U (en) | 2013-12-27 | 2013-12-27 | Bearing isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656193U true CN203656193U (en) | 2014-06-18 |
Family
ID=50922581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320871271.5U Expired - Lifetime CN203656193U (en) | 2013-12-27 | 2013-12-27 | Bearing isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605229A (en) * | 2016-02-29 | 2016-05-25 | 邓伦胜 | Gas-liquid isolating device |
-
2013
- 2013-12-27 CN CN201320871271.5U patent/CN203656193U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605229A (en) * | 2016-02-29 | 2016-05-25 | 邓伦胜 | Gas-liquid isolating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |