CN203146822U - Multi-ring lip line sealed bearing protector - Google Patents
Multi-ring lip line sealed bearing protector Download PDFInfo
- Publication number
- CN203146822U CN203146822U CN201320167999XU CN201320167999U CN203146822U CN 203146822 U CN203146822 U CN 203146822U CN 201320167999X U CN201320167999X U CN 201320167999XU CN 201320167999 U CN201320167999 U CN 201320167999U CN 203146822 U CN203146822 U CN 203146822U
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- Prior art keywords
- ring
- lip
- sealing
- seal ring
- lip line
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Abstract
The utility model discloses a multi-ring lip line sealed bearing protector. The multi-ring lip line sealed bearing protector comprises a rigid skeleton ring, an L-shaped compression ring, a plurality of sealing ring pieces, a supporting ring and a gasket, wherein the gasket, the supporting ring, the sealing ring pieces and the L-shaped compression ring are assembled on the rigid skeleton ring in a stacking mode in sequence. The multi-ring lip line sealed bearing protector is simple in structure, small in friction coefficient, long in wear-resisting time and good in sealing effect, compared with the pressure of an ordinary lip piece oil seal, the pressure of sealing media of the same side double-lip bearing protector is increased by more than 50%, and the multi-ring lip line sealed bearing protector is mainly applied to screw compressors, internal combustion engines, axles, gearboxes, gear cases, bearing boxes, various rotary seals for power, speed-regulating clutch seals and the like.
Description
Technical field
The utility model relates to a kind of oil sealing, especially a kind of many ring lip linear sealing bearing protectors.
Background technique
Existing teflon lip bearing protector has the helical back flash in the lip, when work, it can be with medium back flow, thereby plays seal action; Because back flash is to carve lip sheet surface, in the shaping of lip bending tablet and long-time using process, near the lip the back flash is torn easily, thereby has influenced sealing effect and the working life of oil sealing but then.On the other hand, existing teflon lip bearing protector is all based on single lip, major-minor procheilon structure, or can only seal unidirectional medium, or can only adapt to unidirectional main shaft rotates operating mode, and condition adaptability is relatively poor.
Summary of the invention:
The purpose of this utility model is: a kind of many rings lip linear sealing bearing protector that adapts to the unidirectional or two-way rotation of main shaft, withstand voltage height, good sealing effect, long service life is provided.
Technical solution of the present utility model is: a kind of many ring lip linear sealing bearing protectors, it comprises rigid backbone ring, L type pressure ring, a plurality of seal ring piece, support ring and packing ring.Packing ring, support ring, seal ring piece and L type pressure ring are superimposed upon successively in the rigid backbone ring and are assembled.There is the sealing lip line of projection on the seal ring piece surface, and the sealing lip line height of projection is not less than 0.2mm, and the sealing lip line cross section of projection is spherical or trapezoidal, and the sealing lip line of projection is distributed in the ring plate side in the mode of concentric circle or helix, and quantity is no less than two circles; Seal ring piece is no less than two.Seal ring piece is the rubber and plastic material.
Have the gap between the protruding sealing lip line on the seal ring piece surface, can store certain lubricant oil, when work, form enough oil films for the friction surface of seal ring piece, reduced the relative friction of lip and main shaft, also increased the wear resistance of seal ring piece; A plurality of seal ring pieces can increase leakage way, have promoted withstand voltage properties and the sealability of product greatly.
When sealing means is one-way sealing, and spindle rotating direction is when uncertain, and the sealing lip line of projection can be that helix also can be concentric circle on the seal ring piece surface, but last one seal ring piece must have concentric circle sealing lip line.
When sealing means is two way sealed, and spindle rotating direction is when uncertain, and near the both sides sealing ring plate of medium, the sealing lip line of its rat must be concentric circle, and remaining sealing lip line can be that concentric fenestra can be helix.
The beneficial effects of the utility model: to encircle lip linear sealing bearing protector structure simple more, long, good sealing effect of little, wear-resisting time of friction factor, and the common lip sheet oil sealing of the pressure ratio of the bearing protector sealing medium of homonymy lips improves more than 50%.Be mainly used in the rotary seal of helical-lobe compressor, internal-combustion engine, vehicle bridge, gearbox, gear-box, bearing housing and various power, variable-speed clutch sealing etc.
Description of drawings:
Fig. 1 is many ring lip linear sealing bearing protector mounting structure figure of the present utility model;
Fig. 2 is many rings lip linear sealing bearing protector sectional view of embodiment 2 of the present utility model;
Fig. 3 is that sealing lip line of the present utility model is spherical and is concentrically ringed seal ring piece sectional view;
Fig. 4 is that sealing lip line of the present utility model is spherical and is the seal ring piece sectional view of helix.
Embodiment
Specify the utility model below in conjunction with accompanying drawing.
Embodiment 1:
When sealing means is one-way sealing, seal ring piece quantity is two.As shown in Figure 1, many ring lip linear sealing bearing protectors of the present utility model, it comprises rigid backbone ring 1, L type pressure ring 2, seal ring piece 3.1, seal ring piece 3.2, support ring 4 and packing ring 5.As shown in Figure 1, seal ring piece 1 and seal ring piece 2 3.2 are by rubber-plastics material turning or compression molding, seal ring piece 1 is the first road sealing lip, seal ring piece 2 3.2 is the second road sealing lip, one side surface of seal ring piece 1 and seal ring piece 2 3.2 close inner rings all has the concentric circle sealing lip line 6.1 of hemisphere jut, and the lip line height of projection and width are all greater than 0.2mm.Support ring 4 is processed by the rigidity material, and it is installed between two seal ring pieces, plays the effect of support and isolating seal ring plate.Packing ring 5 by rebound elasticity preferably the rubber material process.Rigid backbone ring 1 and L type pressure ring 2 form by the turning of metal tube bar or by metallic plate punching.All parts are assembled by Fig. 1 structure, afterwards the rigid backbone ring are closed up, at last with shaping die with the flange moulding of seal ring piece lip position.
As shown in figures 1 and 3; many ring lip linear sealing bearing protectors of the present utility model are installed in the cavity; rigid backbone ring 1 tightly fits in gland 8 inner rings, and the concentric circle sealing lip line 6.1 of seal ring piece 1 and seal ring piece 2 3.2 dribbling shape projectioies is close to main shaft 7 surfaces.When main shaft rotated, the lubricant oil that stores between the concentric circle sealing lip line 6.1 can form good lubricating oil film, has reduced the relative friction of lip and main shaft 7, has also increased the wear resistance that seals main lip; On the other hand, seal ring piece 1 can stop medium together with the concentric circle sealing lip line 6.1 of projection on the seal ring piece 3.2, obstruction by concentric circle sealing lip line 6.1 on two seal ring pieces, it is almost nil to arrive the medium in the oil sealing outside by seepage at last, has promoted withstand voltage properties and the sealability of teflon so greatly.
Embodiment 2:
When sealing means is two way sealed, seal ring piece quantity is three.As shown in Figure 2, many ring lip linear sealing bearing protectors of the present utility model, it comprises rigid backbone ring 1, L type pressure ring 2, seal ring piece 1, seal ring piece 2 3.2, seal ring piece 3 3.3, support ring 4 and packing ring 5.As shown in Figure 2, seal ring piece is by rubber-plastics material turning or compression molding, seal ring piece 1 has the spiral seal lip line 6.2 of hemisphere jut near a side of inner ring, helix direction and spindle rotating direction are opposite, one side of seal ring piece 2 3.2 and seal ring piece 3 3.3 close inner rings has the concentric circle sealing lip line 6.1 of hemisphere jut, and the lip line height of projection and width are all greater than 0.2mm.Support ring 4 is processed by the rigidity material, and it is installed between seal ring piece 1 and the seal ring piece 2 3.2.Packing ring 5 by rebound elasticity preferably the rubber material process.Rigid backbone ring 1 and L type pressure ring 2 form by the turning of metal tube bar or by metallic plate punching.All parts are assembled by Fig. 2 structure, afterwards the rigid backbone ring are closed up, at last with shaping die with the flange moulding of seal ring piece lip position.
As Fig. 2, Fig. 3 and shown in Figure 4, many ring lip linear sealing bearing protectors of the present utility model, seal ring piece 1 and seal ring piece 2 3.2 seal a side medium simultaneously, seal ring piece 3 3.3 sealing opposite side media.When main shaft often rotates with a direction, the reverse acting spiral sealing lip line 6.2 that has projection on the seal ring piece 1 constantly is back to medium in the cavity, and the concentric circle sealing lip line 6.1 of band projection is the enhanced leaktightness on seal ring piece 1 on the seal ring piece 2 3.2; The seal action that the concentric circle sealing lip line 6.1 of band projection plays the opposite side medium on the seal ring piece 3 3.3.Under the effect of seal ring piece 1, seal ring piece 2 3.2 and seal ring piece 3 3.3, the media implementation of both sides the sealing function of relative isolation.
Claims (3)
1. encircle lip linear sealing bearing protector one kind, it comprises rigid backbone ring, L type pressure ring, seal ring piece, support ring and packing ring, it is characterized in that: packing ring, support ring, seal ring piece and L type pressure ring are superimposed upon successively in the rigid backbone ring and are assembled more.
2. encircle lip linear sealing bearing protectors according to claim 1, it is characterized in that: there is the sealing lip line of projection on the seal ring piece surface more; The sealing lip line height of projection is not less than 0.2mm; The sealing lip line cross section of projection is spherical or trapezoidal; The sealing lip line of projection is distributed in the ring plate side in the mode of concentric circle or helix, and quantity is no less than two circles.
3. encircle lip linear sealing bearing protectors according to claim 1, it is characterized in that: seal ring piece quantity is no less than two more; Seal ring piece is the rubber and plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320167999XU CN203146822U (en) | 2013-04-07 | 2013-04-07 | Multi-ring lip line sealed bearing protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320167999XU CN203146822U (en) | 2013-04-07 | 2013-04-07 | Multi-ring lip line sealed bearing protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146822U true CN203146822U (en) | 2013-08-21 |
Family
ID=48974346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320167999XU Expired - Lifetime CN203146822U (en) | 2013-04-07 | 2013-04-07 | Multi-ring lip line sealed bearing protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146822U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017034669A1 (en) * | 2015-08-25 | 2017-03-02 | Eaton Corporation | High pressure rotor seal configuration for supercharger |
| CN107166040A (en) * | 2017-05-31 | 2017-09-15 | 广州流体密封科技有限公司 | A kind of rotary shaft sealing of cylindrical self sealss |
| CN108105389A (en) * | 2017-12-21 | 2018-06-01 | 合肥仨力机械制造有限公司 | A kind of high sealing fluid proof seal washer |
| CN111810250A (en) * | 2019-04-11 | 2020-10-23 | 三菱日立电力系统株式会社 | Steam turbine rotor and steam turbine |
| CN112074676A (en) * | 2018-07-17 | 2020-12-11 | Nok株式会社 | Sealing device |
| CN114906308A (en) * | 2022-06-23 | 2022-08-16 | 宁波海伯集团有限公司 | Electric propeller for ship |
-
2013
- 2013-04-07 CN CN201320167999XU patent/CN203146822U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3341602A4 (en) * | 2015-08-25 | 2019-06-19 | Eaton Intelligent Power Limited | High pressure rotor seal configuration for supercharger |
| CN108138646A (en) * | 2015-08-25 | 2018-06-08 | 伊顿智能动力有限公司 | For the high pressure rotor seal construction of booster |
| US20180179947A1 (en) * | 2015-08-25 | 2018-06-28 | Eaton Corporation | High pressure rotor seal configuration for supercharger |
| WO2017034669A1 (en) * | 2015-08-25 | 2017-03-02 | Eaton Corporation | High pressure rotor seal configuration for supercharger |
| CN107166040A (en) * | 2017-05-31 | 2017-09-15 | 广州流体密封科技有限公司 | A kind of rotary shaft sealing of cylindrical self sealss |
| CN108105389A (en) * | 2017-12-21 | 2018-06-01 | 合肥仨力机械制造有限公司 | A kind of high sealing fluid proof seal washer |
| CN108105389B (en) * | 2017-12-21 | 2019-05-21 | 合肥仨力机械制造有限公司 | A kind of high sealing fluid proof seal washer |
| CN112074676A (en) * | 2018-07-17 | 2020-12-11 | Nok株式会社 | Sealing device |
| CN112074676B (en) * | 2018-07-17 | 2022-12-23 | Nok株式会社 | Sealing device |
| CN111810250A (en) * | 2019-04-11 | 2020-10-23 | 三菱日立电力系统株式会社 | Steam turbine rotor and steam turbine |
| CN111810250B (en) * | 2019-04-11 | 2023-02-17 | 三菱重工业株式会社 | Steam turbine rotor and steam turbine |
| CN114906308A (en) * | 2022-06-23 | 2022-08-16 | 宁波海伯集团有限公司 | Electric propeller for ship |
| CN114906308B (en) * | 2022-06-23 | 2024-03-01 | 宁波海伯集团有限公司 | Electric propeller for ship |
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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 |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |