CN103195822A - Waterproof and air leakage-proof bearing - Google Patents
Waterproof and air leakage-proof bearing Download PDFInfo
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- CN103195822A CN103195822A CN2013101310138A CN201310131013A CN103195822A CN 103195822 A CN103195822 A CN 103195822A CN 2013101310138 A CN2013101310138 A CN 2013101310138A CN 201310131013 A CN201310131013 A CN 201310131013A CN 103195822 A CN103195822 A CN 103195822A
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- seal ring
- ring
- bearing
- sealing ring
- leak
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- Sealing Of Bearings (AREA)
Abstract
The invention relates to a waterproof and air leakage-proof bearing. The waterproof and air leakage-proof bearing comprises a sealing ring, wherein the sealing ring comprises a first sealing ring and a second sealing ring, the peripheral surface of the first sealing ring and the inner circumferential wall of an outer ring are fixed together, the inner circumferential surface of the first sealing ring and the peripheral wall of an inner ring are in tight contact to support together, the inner circumferential surface of the second sealing ring and the peripheral wall of the inner ring are tightly fixed together, the peripheral surface of the second sealing ring and the inner circumferential wall of the outer ring are in tight contact to support together, and a cavity is formed between the first sealing ring and the second sealing ring. The waterproof and air leakage-proof bearing has the advantages that the waterproof and air leakage-proof bearing is provided with the first sealing ring and the second sealing ring, and the annular cavity is formed by bridging with a spacer of the first sealing ring in a sealing way and filled with viscous grease, so that the sealing effect is enhanced, and the requirement on the reliability of the bearing is greatly improved. Moreover, a framework of a metal plate is arranged, so that the strength of the sealing ring is increased, the sealing effect of a sealing element is improved, the life of the sealing element is prolonged, and the using requirements are met.
Description
Technical field
The present invention relates to field of mechanical technique, especially refer to a kind of bearing that is applied to the waterproof anti-gas-leak of bearing.
Background technique
The purpose of bearing seal is to prevent leaking outside of bearing portion in-lubricant, and prevents that harmful objects such as outside dust, moisture, foreign matter from invading the bearing inside, makes that bearing can be under desired cond, safety and running enduringly.Existing a kind of application number is CN201110207307.5, the Chinese invention patent that name is called " sealing configuration that is applied to bearing " discloses a kind of structure, the outer ring, inner ring and the seal ring that comprise bearing, the outer rim of seal ring are elastomer, the bottom interference fit of elastomer and outer ring seal groove; The inner edge of seal ring is provided with first sealing lip, be connected with second sealing lip, the 3rd sealing lip under first sealing lip, described second sealing lip is arranged in the inner ring seal groove, the bottom non-contact of itself and inner ring seal groove, the both sides of inner ring seal groove are respectively the little cylindrical of cylindrical and close end face, and described the 3rd sealing lip contacts with little cylindrical.This invention reduces to leak fat, reduces temperature rise and running torque, and leak preventing effect is better, but sealing lip and outer ring, inner ring, it is undesirable that useful between sealing lip and the sealing lip is connected effect, and have the easy deformation of seal ring, and hardness is inappropriate, after repeatedly using, cause seal leakage.
Summary of the invention
Technical problem to be solved by this invention is the bearing that rational in infrastructure, the good seal performance of a kind of waterproof, anti-gas-leak, dust protection is provided at above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above the technological scheme that adopts: the bearing of the waterproof anti-gas-leak of present embodiment, include the outer ring, inner ring, rolling element and seal ring, described rolling physical efficiency rollably places between outer ring and the inner ring, described seal ring places between outer ring and the inner ring and is positioned at the top and bottom of annular chamber, it is characterized in that: described seal ring includes first seal ring and second seal ring, the outer circumferential face of described first seal ring and the inner circle wall of outer ring fix, the inner peripheral surface of described first seal ring is supported on the periphery wall close contact of inner ring, the inner peripheral surface of described second seal ring and inner ring periphery wall fasten together, the described second seal ring outer circumferential face is supported on the inner circle wall close contact of outer ring, and described first seal ring is positioned at second seal ring outside and is arranged above and below together, is formed with cavity between described first seal ring and second seal ring.
As improvement, be extended with partition in described first seal ring, described partition is divided into each self-packing cavity one and cavity two with the cavity in first seal ring and second seal ring, be used for filling grease, and prevent internal grease or fluid to external leakage, also can prevent extraneous dabbling or the intrusion of dust.
Improve, described partition is conical partition again, and described partition is supported on the surperficial close contact of second seal ring from first seal ring oblique the stretching out in middle part, thus the space between dynamic seal (packing) ground bridge joint bearing and the seal ring.
Improve, the first seal ring outer circumferential face is in the annular groove of setting with the outer ring inwall of the first seal ring outer circumferential face opposite position, compact structure again.
Improve, the second seal ring inner peripheral surface is in the annular cavity of setting with the inner ring inwall of the second seal ring inner peripheral surface opposite position again.
Improve again, the last liner of described first seal ring has tinsel skeleton one, increase the intensity of seal ring, do not made it easy to wear or scratch, thereby guaranteed good sealing effect, and this seal ring is not yielding, durable in use, make things convenient for the installation of seal ring greatly, better guarantee the assembling and positioning of seal ring, guarantee sealing effect, the lubricant medium that can be good at satisfying lubrication system does not leak or seepage.
Improve, the last liner of described second seal ring has tinsel skeleton two again.
Compared with prior art, the invention has the advantages that: the bearing of described waterproof anti-gas-leak arranges first seal ring, second seal ring, seal the grease that bridge joint forms toroidal cavity and is filled with viscosity with the partition of first seal ring, strengthened sealing effect, the lubricant medium that blocks in gas and the bearing bore leaks or seepage on the one hand; And the water, dust etc. in the running are also intercepted by these two toroidal cavities respectively on the other hand, make these impurity be difficult to enter bearing cavity, greatly improved the reliability requirement of bearing, and be provided with the skeleton of sheet metal, increased the intensity of seal ring, thereby improved sealing effect and the life-span of Sealing, satisfied usage requirement.
Description of drawings
Fig. 1 is the stereogram of the embodiment of the invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the stereogram of Fig. 1 different visual angles;
Fig. 4 is along the sectional view of A-A line among Fig. 3;
Fig. 5 is the enlarged view of I portion among Fig. 4;
Fig. 6 is the sectional perspective exploded view of Fig. 1;
Fig. 7 is the three-dimensional exploded view of Fig. 1.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Extremely shown in Figure 7 as Fig. 1, a kind of bearing of waterproof anti-gas-leak, include outer ring 2, inner ring 1, rolling element 3 and seal ring, described rolling element 3 can rollably place between outer ring 2 and the inner ring 1, described seal ring places between outer ring 2 and the inner ring 1 and is positioned at the top and bottom of annular chamber, it is characterized in that: described seal ring includes first seal ring 5 and second seal ring 6, the inner circle wall of the outer circumferential face of described first seal ring 5 and outer ring 2 fixes, the inner peripheral surface of described first seal ring 5 is supported on the periphery wall close contact of inner ring 1, the inner peripheral surface of described second seal ring 6 and inner ring 1 periphery wall fasten together, described second seal ring, 6 outer circumferential faces are supported on the inner circle wall close contact of outer ring 2, and described first seal ring 5 is positioned at second seal ring, 6 outsides and is arranged above and below together, is formed with cavity between described first seal ring 5 and second seal ring 6.
Be extended with partition 54 in described first seal ring 5, described partition 54 is divided into each self-packing cavity 1 and cavity 29 with the cavity in first seal ring 5 and second seal ring 6.Described partition 54 is preferably conical partition, described partition 54 is supported on the surperficial close contact of second seal ring 6 from first seal ring oblique the stretching out in 5 middle parts, first seal ring, 5 outer circumferential faces are in the annular groove 21 of setting with outer ring 2 inwalls of first seal ring, 5 outer circumferential face opposite positions, and second seal ring, 6 inner peripheral surfaces are in the annular cavity 11 of setting with inner ring 1 inwall of second seal ring, 6 inner peripheral surface opposite positions.Described first seal ring 5 and second seal ring, 6 preferred liner are lined with tinsel skeleton 1 and 61.
Working principle of the present invention: during enforcement, this bearing processing and assembling on bearing structure, and in time is filled with the grease of viscosity in annular cavity, improves the lubricating condition of bearing.Therefore, the bearing seal steady quality of waterproof anti-gas-leak of the present invention is reliable, easily manufactured, and cost is low, is worthy of popularization.
Claims (7)
1. the bearing of a waterproof anti-gas-leak, include outer ring (2), inner ring (1), rolling element (3) and seal ring, described rolling element (3) can rollably place between outer ring (2) and the inner ring (1), described seal ring places between outer ring (2) and the inner ring (1) and is positioned at the top and bottom of annular chamber, it is characterized in that: described seal ring includes first seal ring (5) and second seal ring (6), the inner circle wall of the outer circumferential face of described first seal ring (5) and outer ring (2) fixes, the inner peripheral surface of described first seal ring (5) is supported on the periphery wall close contact of inner ring (1), the inner peripheral surface of described second seal ring (6) and inner ring (1) periphery wall fasten together, described second seal ring (6) outer circumferential face is supported on the inner circle wall close contact of outer ring (2), and described first seal ring (5) is positioned at second seal ring (6) outside and is arranged above and below together, is formed with cavity between described first seal ring (5) and second seal ring (6).
2. the bearing of waterproof anti-gas-leak according to claim 1, it is characterized in that: be extended with partition (54) in described first seal ring (5), described partition (54) is divided into each self-packing cavity one (8) and cavity two (9) with the cavity in first seal ring (5) and second seal ring (6).
3. the bearing of waterproof anti-gas-leak according to claim 2, it is characterized in that: described partition (54) is conical partition, and described partition (54) is supported on the surperficial close contact of second seal ring (6) from first seal ring (5) oblique the stretching out in middle part.
4. according to the bearing of arbitrary described waterproof anti-gas-leak in the claim 1 to 3, it is characterized in that: described first seal ring (5) outer circumferential face is for setting in the annular groove (21) with outer ring (2) inwall of first seal ring (5) outer circumferential face opposite position.
5. according to the bearing of arbitrary described waterproof anti-gas-leak in the claim 1 to 3, it is characterized in that: described second seal ring (6) inner peripheral surface is for setting in the annular cavity (11) with inner ring (1) inwall of second seal ring (6) inner peripheral surface opposite position.
6. according to the bearing of arbitrary described waterproof anti-gas-leak in the claim 1 to 3, it is characterized in that: described first seal ring (5) liner has tinsel skeleton one (51).
7. according to the bearing of arbitrary described waterproof anti-gas-leak in the claim 1 to 3, it is characterized in that: described second seal ring (6) liner has tinsel skeleton two (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101310138A CN103195822A (en) | 2013-04-15 | 2013-04-15 | Waterproof and air leakage-proof bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101310138A CN103195822A (en) | 2013-04-15 | 2013-04-15 | Waterproof and air leakage-proof bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103195822A true CN103195822A (en) | 2013-07-10 |
Family
ID=48718558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101310138A Pending CN103195822A (en) | 2013-04-15 | 2013-04-15 | Waterproof and air leakage-proof bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103195822A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929421U (en) * | 1982-08-19 | 1984-02-23 | 内山工業株式会社 | Bearing sealing device |
| US4792243A (en) * | 1986-05-24 | 1988-12-20 | Koyo Seiko Co., Ltd. | Bearing |
| WO2009060715A1 (en) * | 2007-11-09 | 2009-05-14 | Ntn Corporation | Bearing for alternator |
| CN201258919Y (en) * | 2008-09-09 | 2009-06-17 | 东莞市Tr轴承有限公司 | Bearing seal structure |
| CN202659721U (en) * | 2011-09-07 | 2013-01-09 | 日本精工株式会社 | Rolling bearing device with gasket |
| CN203257897U (en) * | 2013-04-15 | 2013-10-30 | 宁波三泰轴承有限公司 | Waterproof air leakage-preventing bearing |
-
2013
- 2013-04-15 CN CN2013101310138A patent/CN103195822A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929421U (en) * | 1982-08-19 | 1984-02-23 | 内山工業株式会社 | Bearing sealing device |
| US4792243A (en) * | 1986-05-24 | 1988-12-20 | Koyo Seiko Co., Ltd. | Bearing |
| WO2009060715A1 (en) * | 2007-11-09 | 2009-05-14 | Ntn Corporation | Bearing for alternator |
| CN201258919Y (en) * | 2008-09-09 | 2009-06-17 | 东莞市Tr轴承有限公司 | Bearing seal structure |
| CN202659721U (en) * | 2011-09-07 | 2013-01-09 | 日本精工株式会社 | Rolling bearing device with gasket |
| CN203257897U (en) * | 2013-04-15 | 2013-10-30 | 宁波三泰轴承有限公司 | Waterproof air leakage-preventing bearing |
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Application publication date: 20130710 |