CN212672243U - Novel grease sealing ring for bearing - Google Patents
Novel grease sealing ring for bearing Download PDFInfo
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- CN212672243U CN212672243U CN202021240116.XU CN202021240116U CN212672243U CN 212672243 U CN212672243 U CN 212672243U CN 202021240116 U CN202021240116 U CN 202021240116U CN 212672243 U CN212672243 U CN 212672243U
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- rubber body
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- bearing
- sealing rubber
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Abstract
The utility model discloses a novel grease sealing ring for a bearing, which comprises an annular framework, wherein an annular sealing rubber body is arranged around the framework, the inner ring side wall of the sealing rubber body is provided with an inner lip, and the outer ring side wall of the sealing rubber body is provided with an outer lip; a chamfer inclined plane is arranged between the outer wall of the outer lip and the sealing rubber body, a sealing ring is integrally formed outwards on the chamfer inclined plane, and the cross section of the sealing ring is L-shaped; the inner lip comprises a connecting part, an upper inner lip and a lower inner lip which are integrally formed on the connecting part, and the connecting part is connected to the side wall of the inner ring of the sealing rubber body; the outer side wall of the lower inner lip is provided with an annular sealing sheet along the radial direction. The utility model has the advantages of it is following and effect: the new mechanical structure of this scheme utilization adopts and establishes to two sealings between outer lip and outer lane bearing, establishes to three sealings between inner lip and inner circle bearing, and sealing effect is better, and the area of contact between the seal groove of inside and outside lip and bearing is less, and the bearing rotates the in-process wearing and tearing less, and life is longer.
Description
Technical Field
The utility model relates to a sealing member technical field, in particular to a novel grease sealing washer for bearing.
Background
The bearing sealing ring is a sealing part arranged on the inner ring and the outer ring of the bearing, is a main influence part related to the dustproof and grease leakage prevention performance of the bearing and the temperature rise performance, and has a key effect on the performance due to the structure. Common bearing seal rings generally have three lip structures of a single lip, double lips and three lips, and most of the common bearing seal rings are double lips and three lips in an inner ring seal groove bearing. Need possess dustproof, the higher operating mode of waterproof requirement to the sealing washer, most current sealing washers are through increaseing sealing washer inner lip and inner circle seal groove interference fit to reach dustproof and waterproof effect, but the temperature rise of bearing will aggravate in high rotational speed of above-mentioned mode causes great damage, so need carry out optimal design to traditional structure, reduce wearing and tearing.
Disclosure of Invention
The utility model aims at providing a novel grease sealing washer for bearing has the effect that wearing and tearing are less, sealed effect is better.
The above technical purpose of the present invention can be achieved by the following technical solutions: a novel grease sealing ring for a bearing comprises an annular framework, wherein an annular sealing rubber body is arranged around the framework, an inner lip is arranged on the side wall of an inner ring of the sealing rubber body, and an outer lip is arranged on the side wall of an outer ring of the sealing rubber body; a chamfer inclined plane is arranged between the outer wall of the outer lip and the sealing rubber body, a sealing ring is integrally formed outwards on the chamfer inclined plane, and the cross section of the sealing ring is L-shaped; the inner lip comprises a connecting part, an upper inner lip and a lower inner lip which are integrally formed on the connecting part, and the connecting part is connected to the side wall of the inner ring of the sealing rubber body; the outer side wall of the lower inner lip is provided with an annular sealing sheet along the radial direction.
Through adopting above-mentioned technical scheme, the setting on chamfer inclined plane is convenient for install the sealing washer in the seal groove of outer lane bearing, when the sealing washer outer lip is installed in the seal groove, the oblique lateral wall of outer lip upper end and seal groove offsets and realizes sealed cooperation, the vertical lateral wall of sealing ring and seal groove offsets and realizes sealed cooperation, when the inner lip of sealing washer is installed in the seal groove of inner circle bearing, its main contact stress derives from the thickness of inner lip, avoid the direct seal groove contact interference with the inner circle bearing of inner lip, the inner circle bearing friction torque's of being convenient for control. The oblique lateral wall of last inner lip top and seal groove supports to realize sealed cooperation, the bottom of lower inner lip supports tightly with the lower lateral wall of seal groove and realizes sealed cooperation, and the gasket supports with the vertical lateral wall of seal groove and realizes sealed cooperation, so, the effect of double sealing has between outer lip and the outer lane bearing, three sealed effects have between inner lip and the inner circle bearing, and the inner lip has the wearing and tearing compensation function, enable inner lip and inner circle bearing seal groove to remain good contact throughout, sealing effect is better, thereby guarantee the sealing washer to dustproof, waterproof, the requirement of leak protection fat performance, and interior, area of contact between the seal groove of outer lip and bearing is less, the bearing rotates the in-process, wearing and tearing are less, long service life.
The utility model discloses a further set up to: a pressure relief groove is formed between the outer lip and the sealing rubber body, and the pressure relief groove is annularly formed.
Through adopting above-mentioned technical scheme, set up pressure relief groove, increased the friction torque of outer lip to outer lane bearing seal groove under the condition that reduces outer lip and turn over the edge to can reduce the sealing washer along with the outer lane bearing possibility of turning round.
The utility model discloses a further set up to: the lower inner lip is provided with an annular groove, and the end surfaces of two sides of the annular groove are both arc-shaped.
Through adopting above-mentioned technical scheme, form the sealed isolation of twice between the bottom of lower inner lip and the sealed tank bottom wall of inner circle bearing, the ring channel can play interim oil storage effect, and sealed effect is better, in addition, because terminal surface is arc under the both sides of ring channel, convex top and the sealed cooperation of seal groove diapire, area of contact between the two is less for the bearing rotates the in-process, and relative wear is littleer.
The utility model discloses a further set up to: a lower end groove is formed among the sealing rubber body, the connecting part and the lower inner lip, and an upper end groove is formed among the sealing rubber body, the connecting part and the upper inner lip.
The utility model discloses a further set up to: the cross-section of lower extreme recess sets up to trapezoidal, is provided with a plurality of strengthening ribs in the lower extreme recess, and the one end of strengthening rib is fixed in the external wall of the sealing rubber body, and the other end of strengthening rib is fixed in the inner wall of lower lip, and the whole slope of strengthening rib sets up.
Through adopting above-mentioned technical scheme, the setting of strengthening rib has the supporting role to interior lip down for the gasket of interior lip lateral wall can have better tight power of supporting all the time with between the vertical wall of the seal groove of inner circle bearing down, thereby improves sealed effect.
The utility model discloses a further set up to: the outer side wall circumference of lower inner lip has seted up the oil storage tank, and the oil storage tank is located between upper inner lip and the gasket.
Through adopting above-mentioned technical scheme, when the inner lip was installed in the seal groove of inner circle bearing, formed the cavity between the seal groove of lower inner lip, last inner lip and inner circle bearing, when inside grease leaked to the cavity in through lower inner lip, the oil storage tank can play the effect of oil storage, and the outside dust particle that the upper inner lip did not successfully block also can be kept in the cavity temporarily.
The utility model discloses a further set up to: the oil storage tank is a parallel double-channel oil storage tank.
Through adopting above-mentioned technical scheme, the setting of two pass oil storage tanks can increase the oil reserve to a certain extent, reduces the possibility of oil spilling.
The utility model discloses a further set up to: the inner side wall of the sealing rubber body close to the inner lip is provided with an oil guide inclined surface.
Through adopting above-mentioned technical scheme, lead setting up of oil inclined plane and can tentatively block in the foreign matter gets into the seal groove of inner circle bearing, lead in oil inclined plane can effectively guide the grease in the operation and get back to inner circle bearing channel, improve the performance of leak protection fat.
To sum up, the utility model discloses following beneficial effect has:
1. the double-seal structure is characterized in that double seals are arranged between an outer lip and an outer ring bearing, three seals are arranged between an inner lip and an inner ring bearing, the inner lip has a wear compensation function, so that the inner lip and a seal groove of the inner ring bearing are always kept in good contact, the sealing effect is good, the requirements of the seal ring on dust-proof, water-proof and grease-leakage-proof performances are met, the contact areas between the inner lip and the seal groove of the bearing are small, the wear is small in the bearing rotating process, and the service life is long;
2. the mode that the pressure relief groove is formed between the outer lip and the sealing rubber body is adopted, so that the friction torque of the outer lip on the sealing groove of the outer ring bearing is increased under the condition of reducing the turning edge of the outer lip, and the possibility that the sealing ring rotates along with the outer ring bearing can be reduced;
3. the mode of adopting oil guide inclined plane can preliminarily prevent foreign matters from entering the seal groove of the inner ring bearing, and the oil guide inclined plane can effectively guide the grease in operation to return to the inner ring bearing channel, thereby improving the grease leakage prevention performance.
Drawings
Fig. 1 is a schematic diagram of the overall structural relationship of the embodiment.
Fig. 2 is a schematic diagram of the overall structure of another view angle of the embodiment.
Fig. 3 is a top view of the embodiment.
Fig. 4 is a sectional view of section a-a in fig. 3.
FIG. 5 is a sectional view of a portion of the bearing to which the embodiment is attached.
In the figure: 1. a framework; 2. a sealing rubber body; 21. an oil guide inclined plane; 3. an inner lip; 31. a connecting portion; 32. an upper inner lip; 33. a lower inner lip; 331. sealing the sheet; 332. an annular groove; 4. an outer lip; 41. chamfering the inclined plane; 42. a seal ring; 43. a pressure relief groove; 5. a lower end groove; 6. an upper end groove; 7. reinforcing ribs; 8. an oil storage tank; 9. an inner race bearing; 10. and an outer ring bearing.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. For convenience of explanation, the terms "up" and "down" are used in the same direction as shown in fig. 5.
A novel grease sealing ring for a bearing is shown in figures 1-5 and comprises an annular framework 1, an annular sealing rubber body 2 is arranged around the framework 1, an inner ring side wall of the sealing rubber body 2 is provided with an inner lip 3, and an outer ring side wall of the sealing rubber body 2 is provided with an outer lip 4.
As shown in fig. 4 and 5, a chamfer inclined surface 41 is arranged between the outer wall of the outer lip 4 and the sealing rubber body 2, a sealing ring 42 is integrally formed outwards on the chamfer inclined surface 41, the cross section of the sealing ring 42 is L-shaped, a pressure relief groove 43 is arranged between the outer lip 4 and the sealing rubber body 2, and the pressure relief groove 43 is annularly arranged on the upper end surface; the inner lip 3 comprises a connecting part 31, an upper inner lip 32 and a lower inner lip 33 which are integrally formed on the connecting part 31, and the outer side wall of the connecting part 31 is connected with the inner ring side wall of the sealing rubber body 2; the lateral wall of lower inner lip 33 is along radially being provided with annular sealing fin 331, annular groove 332 has been seted up to the lower terminal surface of lower inner lip 33, the both sides terminal surface of annular groove 332 all sets up to arc, the sealing rubber body 2, form lower extreme recess 5 between connecting portion 31 and the lower inner lip 33, the sealing rubber body 2, form upper end recess 6 between connecting portion 31 and the last inner lip 32, the cross-section of lower extreme recess 5 sets up to trapezoidal, be provided with a plurality of strengthening ribs 7 in the lower extreme recess 5, the one end of strengthening rib 7 is fixed in the 2 outer walls of sealing rubber body, the other end of strengthening rib 7 is fixed in lower inner lip 33 inner wall, and the whole slope of strengthening rib 7 sets up, the setting of strengthening rib 7 has the supporting role to lower inner lip 33, make have better tight power of supporting all the time between the sealing fin 331 of lower inner lip 33 lateral wall and. The outer side wall of the lower inner lip 33 is circumferentially provided with a parallel double oil storage tank 8, and the oil storage tank 8 is positioned between the upper inner lip 32 and the sealing sheet 331.
The pressure relief groove 43 is formed, so that the friction torque of the outer lip 4 to the sealing groove of the outer ring bearing 10 is increased under the condition that the turning edge of the outer lip 4 is reduced, and the possibility that the sealing ring rotates along with the outer ring bearing 10 can be reduced. The bottom of lower inner lip 33 and the sealed tank bottom wall of inner circle bearing 9 form the sealed isolation of twice, and ring channel 332 can play temporary oil storage effect, and sealed effect is better, in addition, because ring channel 332's both sides terminal surface is arc, and convex top and the sealed groove diapire are sealed to be cooperated, and area of contact between the two is less for the bearing rotates the in-process, and relative wear is littleer. When the inner lip 3 is installed in the seal groove of the inner ring bearing 9, a cavity is formed among the lower inner lip 33, the upper inner lip 32 and the seal groove of the inner ring bearing 9, when the internal grease leaks into the cavity through the lower inner lip 33, the oil storage tank 8 can play a role in oil storage, external dust particles which are not successfully blocked by the upper inner lip 32 can be temporarily stored in the cavity, the oil storage amount can be increased to a certain extent by the arrangement of the double-channel oil storage tank 8, and the possibility of oil overflow is reduced.
As shown in fig. 5, the inner side wall of the sealing rubber body 2 close to the inner lip 3 is provided with an oil guiding inclined surface 21, and the oil guiding inclined surface 21 is inclined from top to bottom towards the center of the sealing ring. The oil guide inclined plane 21 can primarily prevent foreign matters from entering a sealing groove of the inner ring bearing 9, and the oil guide inclined plane 21 can effectively guide oil in operation to return to the channel of the inner ring bearing 9, so that the performance of preventing oil leakage is improved.
The utility model discloses a basic operating principle does: the setting of chamfer inclined plane 41 is convenient for install the sealing washer in outer lane bearing 10's seal groove, when the sealing washer outer lip 4 is installed in the seal groove, the oblique lateral wall of outer lip 4 upper end and seal groove is supported and is realized sealed cooperation, sealing ring 42 is supported and is realized sealed cooperation with the vertical lateral wall of seal groove, when the inner lip 3 of sealing washer is installed in the seal groove of inner circle bearing 9, its main contact stress derives from the thickness of inner lip 3, avoid the direct seal groove contact interference with inner circle bearing 9 of inner lip 3, the control of the inner circle bearing 9 friction torque of being convenient for. The oblique lateral wall of last inner lip 32 top and seal groove supports and realizes sealed cooperation, the bottom of lower inner lip 33 supports tightly with the lower lateral wall of seal groove and realizes sealed cooperation, and gasket 331 supports with the vertical lateral wall of seal groove and realizes sealed cooperation, so, have the effect of double seal between outer lip 4 and the outer lane bearing 10, the effect of three sealings has between inner lip 3 and the inner circle bearing 9, and inner lip 3 has the wearing and tearing compensation function, enable inner lip 3 and the good contact of inner circle bearing 9 seal groove to keep throughout, sealing effect is better, thereby guarantee the sealing washer to dustproof, waterproof, the requirement of leak protection fat performance, and interior, the area of contact between the seal groove of outer lip and bearing is less, the bearing rotates the in-process, wearing and tearing are less, long service life.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.
Claims (8)
1. The utility model provides a novel grease sealing washer for bearing, includes annular skeleton (1), be provided with annular sealing rubber body (2) around skeleton (1), its characterized in that: an inner lip (3) is arranged on the side wall of the inner ring of the sealing rubber body (2), and an outer lip (4) is arranged on the side wall of the outer ring of the sealing rubber body (2); a chamfer inclined plane (41) is arranged between the outer wall of the outer lip (4) and the sealing rubber body (2), a sealing ring (42) is integrally formed outwards on the chamfer inclined plane (41), and the section of the sealing ring (42) is L-shaped; the inner lip (3) comprises a connecting part (31), an upper inner lip (32) and a lower inner lip (33) which are integrally formed on the connecting part (31), and the connecting part (31) is connected to the side wall of the inner ring of the sealing rubber body (2); the outer side wall of the lower inner lip (33) is provided with an annular sealing sheet (331) along the radial direction.
2. The novel grease seal ring for a bearing according to claim 1, characterized in that: a pressure relief groove (43) is formed between the outer lip (4) and the sealing rubber body (2), and the pressure relief groove (43) is annularly formed.
3. The novel grease seal ring for a bearing according to claim 1, characterized in that: annular groove (332) have been seted up to lower inner lip (33), the both sides terminal surface of annular groove (332) all sets up to arc.
4. The novel grease seal ring for a bearing according to claim 1, characterized in that: the sealing rubber body (2), connecting portion (31) with form lower extreme recess (5) down between interior lip (33), the sealing rubber body (2) connecting portion (31) with form upper end recess (6) between last interior lip (32).
5. The novel grease seal ring for a bearing according to claim 4, characterized in that: the cross-section of lower extreme recess (5) sets up to trapezoidal, be provided with a plurality of strengthening ribs (7) in lower extreme recess (5), the one end of strengthening rib (7) is fixed in the sealing rubber body (2) outer wall, the other end of strengthening rib (7) is fixed in lower inner lip (33) inner wall, just strengthening rib (7) whole slope sets up.
6. The novel grease seal ring for a bearing according to claim 1, characterized in that: an oil storage tank (8) is circumferentially arranged on the outer side wall of the lower inner lip (33), and the oil storage tank (8) is located between the upper inner lip (32) and the sealing sheet (331).
7. The novel grease seal ring for a bearing according to claim 6, characterized in that: the oil storage tank (8) is a parallel double-channel oil storage tank (8).
8. The novel grease seal ring for a bearing according to claim 1, characterized in that: the inner side wall of the sealing rubber body (2) close to the inner lip (3) is provided with an oil guide inclined surface (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021240116.XU CN212672243U (en) | 2020-06-30 | 2020-06-30 | Novel grease sealing ring for bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021240116.XU CN212672243U (en) | 2020-06-30 | 2020-06-30 | Novel grease sealing ring for bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212672243U true CN212672243U (en) | 2021-03-09 |
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ID=74818564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021240116.XU Active CN212672243U (en) | 2020-06-30 | 2020-06-30 | Novel grease sealing ring for bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212672243U (en) |
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2020
- 2020-06-30 CN CN202021240116.XU patent/CN212672243U/en active Active
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