CN214146301U - Novel multi-channel sealing device for improved slewing bearing - Google Patents
Novel multi-channel sealing device for improved slewing bearing Download PDFInfo
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- CN214146301U CN214146301U CN202023223862.0U CN202023223862U CN214146301U CN 214146301 U CN214146301 U CN 214146301U CN 202023223862 U CN202023223862 U CN 202023223862U CN 214146301 U CN214146301 U CN 214146301U
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Abstract
The utility model relates to a novel multi-sealing device for an improved slewing bearing, which comprises an outer ring and an inner ring, wherein the outer ring is connected with the inner ring through balls, an upper sealing mechanism and a lower sealing mechanism are arranged at the butt joint of the outer ring and the inner ring, the outer part of the lower sealing mechanism is arranged on the outer ring, and the inner part of the lower sealing mechanism is arranged on the inner ring; the upper sealing mechanism is arranged on an inner ring at the upper part of the lower sealing mechanism, and a sealing cavity is formed between the upper sealing mechanism and the lower sealing mechanism. The utility model has the advantages that: through setting up sealing mechanism, lower sealing mechanism and clamp plate etc. realized multichannel seal structure, it is tight to seal, effective waterproof dustproof. The lower rubber sealing ring can be effectively prevented from being separated from the sealing groove; and a lubricating oil passage is also arranged, so that lubrication can be always provided for the lower rubber sealing ring and the upper rubber sealing ring, the service life of the lower rubber sealing ring and the upper rubber sealing ring is prolonged, and external impurities can be effectively prevented from entering the rubber sealing ring.
Description
Technical Field
The utility model relates to a novel multichannel sealing device that modified slewing bearing used for the sealing of bearing.
Background
The slewing bearing is a large bearing capable of bearing comprehensive loads and can simultaneously bear larger axial and radial loads and overturning moments. The slewing bearing is widely applied to the industries of ship equipment, engineering machinery, light industry machinery, metallurgical machinery, medical machinery, industrial machinery and the like.
At present, most of sealing devices of slewing bearings adopt single-layer dustproof rubber plane sealing strips, have simple structures but insufficient waterproof and dustproof performances, and cannot meet the requirements of the slewing bearings on special environments with severe working conditions and serious environmental pollution.
The slewing bearing often makes the slewing bearing raceway lose sealing protection because the dustproof sealing strip of interior outer lane wears out failure or drops in the use, makes the slewing bearing appear that the clearance enlarges, the oil leak, life seriously reduces a series of problems such as life.
Disclosure of Invention
For overcoming prior art's defect, the utility model aims to provide a novel multiple sealing device that modified slewing bearing used to solve the problem that traditional slewing bearing seal structure sealing performance that proposes in the above-mentioned background art is not enough, easy wearing and tearing became invalid, easily drop. The technical scheme of the utility model is that:
the improved novel multi-channel sealing device for the slewing bearing comprises an outer ring (1) and an inner ring (2), wherein the outer ring (1) and the inner ring (2) are connected through a ball (3), an upper sealing mechanism and a lower sealing mechanism are installed at the butt joint of the outer ring (1) and the inner ring (2), the outer part of the lower sealing mechanism is installed on the outer ring (1), and the inner part of the lower sealing mechanism is installed on the inner ring (2); the upper sealing mechanism is arranged on an inner ring (2) at the upper part of the lower sealing mechanism, and a sealing cavity (17) is formed between the upper sealing mechanism and the lower sealing mechanism; the upper sealing mechanism comprises an upper rubber sealing ring (9), a trapezoidal groove is formed in the middle of the upper rubber sealing ring (9), the upper rubber sealing ring (9) is sleeved on the periphery of the inner ring (2), the inner wall (13) of the upper rubber sealing ring (9) is tightly attached to the outer surface of the inner ring (2), the outer edge (14) of the upper rubber sealing ring (9) is arranged in an outward inclined mode, a third included angle (D) is formed between the outer edge (14) of the upper rubber sealing ring (9) and the vertical direction, and the third included angle (D) is an acute angle; the annular bulge (12) and the trapezoidal groove form the sealing cavity (17); the outer side of the inner ring (2) is also provided with a sunk groove (18), the inner edge (19) of the upper rubber sealing ring (9) is embedded into the sunk groove (18), and the inner edge (19) of the upper rubber sealing ring (9) is pressed tightly.
The lower sealing mechanism comprises an integrally formed lower rubber sealing ring (7), a plurality of upper lips (10) and lower lips (11) are arranged on the inner side of the lower rubber sealing ring (7), the upper end face of the lower rubber sealing ring (7) is provided with the upper lips (10), each upper lip (10) is arranged in an outward inclined mode, and a space is formed between every two adjacent upper lips (10); the lower end face of the lower rubber sealing ring (7) is provided with the lower lips (11), each lower lip (11) is arranged in an inward inclined mode, and a space is formed between every two adjacent lower lips (11); the upper lip (10) and the lower lip (11) are both arranged in the sealing ring groove (5) of the inner ring (2); an annular bulge (12) is also arranged on the upper end surface of the lower rubber sealing ring (7), and the annular bulge (12) corresponds to the upper sealing mechanism; the lower rubber sealing ring (7) is pressed and fixed at an outer sinking groove (4) of the outer ring by an annular pressing plate (8), and the outer sinking groove (4) is arranged adjacent to the sealing ring groove (5); the outer edge of the upper rubber sealing ring (9) is pressed on the top surface of the annular pressure plate (8).
The upper end face of the annular bulge is higher than the upper end face of the outer ring, and a height difference is formed between the annular bulge and the outer ring.
The upper lip (10) and the horizontal plane form a first included angle (A), and the first included angle (A) is an acute angle; the lower lip (11) and the horizontal plane form a second included angle (B), the second included angle (B) is an acute angle, and the upper lip (10) and the lower lip (11) are tightly matched with the sealing ring groove (5).
A lubricating oil channel (6) is further arranged in the seal ring groove (5), a lubricating joint (15) is arranged at the upper part of the inner ring (2), an oil inlet of the lubricating joint (15) is connected to a lubricating system, and an oil outlet corresponds to the lubricating oil channel (6).
The utility model has the advantages that: through setting up sealing mechanism and lower sealing mechanism, realized multichannel seal structure, it is tight to seal, effective waterproof dustproof. The lower rubber sealing ring can be effectively prevented from being separated from the sealing ring groove; and a lubricating oil passage is also arranged, so that lubrication can be always provided for the lower rubber sealing ring and the upper rubber sealing ring, the service life of the lower rubber sealing ring and the upper rubber sealing ring is prolonged, and external impurities can be effectively prevented from entering the rubber sealing ring.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention in half section.
Fig. 2 is a schematic structural view of the outer ring of fig. 1.
Fig. 3 is a schematic view of the inner ring of fig. 1.
Fig. 4 is a schematic structural view of the lower sealing mechanism in fig. 1.
Fig. 5 is a schematic structural view of the upper sealing mechanism in fig. 1.
Detailed Description
The invention will be further described with reference to specific embodiments, the advantages and features of the invention will become more apparent as the description proceeds. These examples are merely illustrative and do not limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Referring to fig. 1 to 5, the present invention relates to a novel multi-sealing device for an improved slewing bearing, which comprises an outer ring 1 and an inner ring 2, wherein the outer ring 1 and the inner ring 2 are connected through balls 3, an upper sealing mechanism and a lower sealing mechanism are installed at the butt joint of the outer ring 1 and the inner ring 2, the outer part of the lower sealing mechanism is installed on the outer ring 1, and the inner part of the lower sealing mechanism is installed on the inner ring 2; the upper sealing mechanism is arranged on the inner ring 2 at the upper part of the lower sealing mechanism, and a sealing cavity 17 is formed between the upper sealing mechanism and the lower sealing mechanism. The upper sealing mechanism comprises an upper rubber sealing ring 9, a trapezoidal groove is formed in the middle of the upper rubber sealing ring 9, the upper rubber sealing ring 9 is sleeved on the periphery of the inner ring 2, the inner wall 13 of the upper rubber sealing ring 9 is tightly attached to the outer surface of the inner ring 2, the outer edge 14 of the upper rubber sealing ring 9 is arranged in an outward inclined mode, a third included angle D is formed between the outer edge 14 of the upper rubber sealing ring 9 and the vertical direction, and the third included angle D is an acute angle; the annular bulge 12 and the trapezoidal groove form the sealing cavity 17; an inner sunken groove 18 is further formed in the outer side upper edge of the inner ring 2, an inner edge 19 of the upper rubber sealing ring 9 is embedded into the inner sunken groove 18, and when the slewing bearing is installed, the top installation surface tightly presses the inner edge 19 of the upper rubber sealing ring 9.
The lower sealing mechanism comprises an integrally formed lower rubber sealing ring 7, a plurality of upper lips 10 and lower lips 11 are arranged on the inner side of the lower rubber sealing ring 7, the upper end face of the lower rubber sealing ring 7 is provided with the upper lips 10, each upper lip 10 is obliquely arranged towards the outer side, and a space is formed between every two adjacent upper lips 10; the lower end face of the lower rubber sealing ring 7 is provided with the lower lips 11, each lower lip 11 is arranged in an inward inclined mode, and a space is formed between every two adjacent lower lips 11; the upper lip 10 and the lower lip 11 are both arranged in the sealing ring groove 5 of the inner ring 2; the upper end surface of the lower rubber sealing ring 7 is also provided with an annular bulge 12, and the annular bulge 12 corresponds to the upper sealing mechanism; the annular pressing plate 8 tightly presses and fixes the lower rubber sealing ring 7 at an outer sunken groove 4 of the outer ring, and the outer sunken groove 4 is arranged adjacent to the sealing ring groove 5; the outer edge of the upper rubber sealing ring 9 presses on the top surface of the annular pressure plate 8.
The upper end surface of the annular protrusion 12 is higher than the upper end surface of the outer ring 1, and a height difference is formed between the annular protrusion and the outer ring 1, so that the inflow of outside shower water is prevented.
The upper lip 10 and the horizontal plane form a first included angle A which is an acute angle; the lower lip 11 and the horizontal plane form a second included angle B which is an acute angle, and the upper lip 10 and the lower lip 11 are tightly matched with the sealing ring groove 5.
A lubricating oil channel 6 is further arranged in the seal ring groove 5, a lubricating joint 15 is arranged at the upper part of the inner ring 2, an oil inlet of the lubricating joint 15 is connected to a lubricating system (in the prior art), and an oil outlet corresponds to the lubricating oil channel 6.
The utility model discloses a theory of operation is: lubricating grease is continuously conveyed into a sealing cavity 17 between the lower rubber sealing ring 7 and the upper rubber sealing ring 9 through a lubricating system (the lubricating grease enters a sealing ring groove through a lubricating grease channel and then enters the sealing cavity), so that lubrication can be provided for the lower rubber sealing ring 7 and the upper rubber sealing ring 9 all the time, the service life of the lower rubber sealing ring is prolonged, and external impurities can be effectively prevented from entering the sealing cavity.
The arrangement of the pressing plate realizes the fixation of the lower sealing mechanism on the outer ring and the inner ring, and the upper sealing mechanism is provided with the upper lip, the lower lip and the annular bulge, so that the multi-sealing of the outer ring and the inner ring is realized, the external dust and impurities are strictly prevented from entering the roller path 16, and meanwhile, the lubricating grease is ensured to smoothly enter and be kept in the sealing cavity 17 between the lower rubber sealing ring 7 and the upper rubber sealing ring 9, and the lubricating grease is prevented from losing.
This scheme still can be used to on the slewing bearing of mixer or collergang, the effect is showing, and simple structure, with low costs.
Claims (5)
1. The improved novel multi-channel sealing device for the slewing bearing comprises an outer ring (1) and an inner ring (2), wherein the outer ring (1) and the inner ring (2) are connected through balls (3), and is characterized in that an upper sealing mechanism and a lower sealing mechanism are installed at the butt joint of the outer ring (1) and the inner ring (2), the outer part of the lower sealing mechanism is installed on the outer ring (1), and the inner part of the lower sealing mechanism is installed on the inner ring (2); the upper sealing mechanism is arranged on an inner ring (2) at the upper part of the lower sealing mechanism, and a sealing cavity (17) is formed between the upper sealing mechanism and the lower sealing mechanism; the upper sealing mechanism comprises an upper rubber sealing ring (9), a trapezoidal groove is formed in the middle of the upper rubber sealing ring (9), the upper rubber sealing ring (9) is sleeved on the periphery of the inner ring (2), the inner wall (13) of the upper rubber sealing ring (9) is tightly attached to the outer surface of the inner ring (2), the outer edge (14) of the upper rubber sealing ring (9) is arranged in an outward inclined mode, a third included angle (D) is formed between the outer edge (14) of the upper rubber sealing ring (9) and the vertical direction, and the third included angle (D) is an acute angle; the annular bulge (12) and the trapezoidal groove form the sealing cavity (17); the outer side of the inner ring (2) is also provided with a sunk groove (18), the inner edge (19) of the upper rubber sealing ring (9) is embedded into the sunk groove (18), and the inner edge (19) of the upper rubber sealing ring (9) is pressed tightly.
2. The improved novel multi-seal device for the slewing bearing according to claim 1, wherein the lower seal mechanism comprises an integrally formed lower rubber seal ring (7), a plurality of upper lips (10) and lower lips (11) are arranged on the inner side of the lower rubber seal ring (7), the upper lips (10) are arranged on the upper end surface of the lower rubber seal ring (7), each upper lip (10) is obliquely arranged towards the outer side, and a space is formed between two adjacent upper lips (10); the lower end face of the lower rubber sealing ring (7) is provided with the lower lips (11), each lower lip (11) is arranged in an inward inclined mode, and a space is formed between every two adjacent lower lips (11); the upper lip (10) and the lower lip (11) are both arranged in the sealing ring groove (5) of the inner ring (2); an annular bulge (12) is also arranged on the upper end surface of the lower rubber sealing ring (7), and the annular bulge (12) corresponds to the upper sealing mechanism; the lower rubber sealing ring (7) is pressed and fixed at an outer sinking groove (4) of the outer ring by an annular pressing plate (8), and the outer sinking groove (4) is arranged adjacent to the sealing ring groove (5); the outer edge of the upper rubber sealing ring (9) is pressed on the top surface of the annular pressure plate (8).
3. The improved multichannel sealing device for the slewing bearing as claimed in claim 2, wherein the upper end surface of the annular protrusion is higher than the upper end surface of the outer ring, and a height difference is formed between the annular protrusion and the outer ring.
4. A novel multipass seal for an improved slewing bearing according to claim 2 or 3, wherein said upper lip (10) forms a first angle (a) with the horizontal plane, said first angle (a) being acute; the lower lip (11) and the horizontal plane form a second included angle (B), the second included angle (B) is an acute angle, and the upper lip (10) and the lower lip (11) are tightly matched with the sealing ring groove (5).
5. The improved multichannel sealing device for the slewing bearing as claimed in claim 2 or 3, wherein a lubricating oil channel (6) is further arranged in the sealing ring groove (5), a lubricating joint (15) is arranged at the upper part of the inner ring (2), an oil inlet of the lubricating joint (15) is connected to a lubricating system, and an oil outlet corresponds to the lubricating oil channel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223862.0U CN214146301U (en) | 2020-12-28 | 2020-12-28 | Novel multi-channel sealing device for improved slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023223862.0U CN214146301U (en) | 2020-12-28 | 2020-12-28 | Novel multi-channel sealing device for improved slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214146301U true CN214146301U (en) | 2021-09-07 |
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ID=77542279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023223862.0U Active CN214146301U (en) | 2020-12-28 | 2020-12-28 | Novel multi-channel sealing device for improved slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214146301U (en) |
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2020
- 2020-12-28 CN CN202023223862.0U patent/CN214146301U/en active Active
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