CN209943517U - Thin oil sealing structure - Google Patents
Thin oil sealing structure Download PDFInfo
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- CN209943517U CN209943517U CN201920303831.4U CN201920303831U CN209943517U CN 209943517 U CN209943517 U CN 209943517U CN 201920303831 U CN201920303831 U CN 201920303831U CN 209943517 U CN209943517 U CN 209943517U
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- oil
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- ring
- hole cover
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Abstract
The utility model belongs to a thin oil sealing structure; the oil splashing device is arranged in the shell, a through hole cover is arranged at the front end of the shell, a sealing ring is arranged in the through hole cover, a rebound part is arranged on one side of the sealing ring, an oil collection and return part is fixed in the through hole cover and arranged on one side of the rebound part, the position of the oil collection and return part and the position of the oil splashing prevention part are arranged in a manner of corresponding to each other in the radial direction of the shaft, and an oil baffle ring is connected to the oil splashing prevention part; the thin oil lubrication sealing device has the advantages that thin oil lubrication sealing can be effectively realized, the phenomenon of oil leakage of equipment cannot be caused, and therefore manual maintenance cost and maintenance shutdown cost are reduced.
Description
Technical Field
The utility model belongs to the technical field of the thin oil seal, concretely relates to thin oil seal structure.
Background
At present, most of thin oil sealing methods are in a sealing ring form, the structure components generally comprise a shell, a bearing (optional), a shaft, a through hole cover, a labyrinth cover (optional), an oil baffle ring, a sealing ring and the like, the requirement on the smoothness of two joint surfaces is high for a static joint surface, and a rubber sealing ring is arranged between the two joint surfaces for the static joint surface, so that the structure is reliable in sealing after initial assembly, but after repeated assembly, sealing failure occurs, and the reasons are that the sealing ring is deformed, the two joint surfaces are deformed, the smoothness of the joint surfaces is reduced and the like; the dynamic joint surface has higher requirements on the smoothness of the static joint surface, also has higher requirements on the hardness, and needs to replace the sealing ring regularly to achieve the reliability of sealing, and the failure reasons are mostly the friction force between a rotating part and a relatively static part, so that the sealing ring is abraded, the joint surface is abraded and the like; therefore, the prior sealing technology adopts the preliminary sealing measure of an oil baffle ring for sealing oil splashing after bearing lubrication and assists felt ring oil sealing, and has the defects that an effective non-contact sealing mode is not adopted for axial flow lubricating oil, and simultaneously, no further improvement measure is provided for the resilience of the felt sealing oil seal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect among the prior art and provide a structural design is reasonable, can effectively realize the lubricated sealed of thin oil, can not produce the phenomenon of equipment oil leak to reduce artifical cost of maintenance and reduce a thin oil seal structure of maintenance shut-down cost.
The purpose of the utility model is realized like this: the oil splashing device is arranged in the casing, a through hole cover is arranged at the front end of the casing, a sealing ring is arranged in the through hole cover, a rebound part is arranged on one side of the sealing ring, the oil collection and return part is fixed in the through hole cover and arranged on one side of the rebound part, the position of the oil collection and return part corresponds to the position of the oil splashing prevention part in the radial direction of the shaft, and an oil baffle ring is connected to the oil splashing prevention part.
Preferably, the oil splashing device is a gear or an oil splashing ring.
Preferably, the oil throwing prevention piece is further provided with a labyrinth cover.
Preferably, the oil throwing prevention piece is made of nylon or nonmetal.
Preferably, the structure of the oil collecting member is a groove type or a hole type.
The utility model discloses be equipped with resilience piece and sealing washer elastic contact on the sealing washer, adopt the sealed mode of this kind of non-contact to make equipment can not lead to sealed inefficacy because of the operation wearing and tearing, the resilience force of sealing washer has compensated the wearing and tearing volume simultaneously and has avoided the sealed inefficacy problem that leads to because of the sealing washer inefficacy, has the sealed that can effectively realize the thin oil lubrication, can not produce the phenomenon of equipment oil leak to reduce artifical cost of maintenance and reduce the advantage of maintenance shut-down cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic view of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, in which like reference numerals refer to like parts in the drawings. For the sake of simplicity, only the parts related to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product.
As shown in fig. 1 and 2, the utility model relates to a thin oil seal structure, including axle 6, axle 6 pass through bearing 2 to be fixed in casing 1, be equipped with the device that splashes oil in casing 1, casing 1's front end is equipped with through-hole lid 3, is equipped with sealing washer 7 in the through-hole lid 3, and one side of sealing washer 7 is equipped with the rebound spare 11, and collection oil return 9 is fixed in through-hole lid 3 and is established in one side of rebound spare 11, and collection oil return 9's position and the position that hinders oil slinger 10 correspond the setting in the footpath of axle 6, hinder and be connected with oil scraper ring 4 on the oil slinger 10. The oil splashing device is a gear or an oil splashing ring. The oil throwing prevention piece 10 is also provided with a labyrinth cover 5. The oil throwing prevention piece 10 is made of nylon or nonmetal. The structure of the oil collection and return piece 9 is groove type or hole type.
The shaft 6 of the utility model is fixed in the casing 1 through the bearing 2, the thin oil in the casing 1 plays a role of lubricating parts such as the bearing 2 and the like, the labyrinth cover 5 rotates along with the shaft 6 to play a role of adjusting and limiting the inner ring of the bearing, the oil throwing-resistant part 10 rotates along with the shaft 6 to play a role of stopping the oil from flowing along the outside of the shaft and throwing the oil away from the rotating shaft at the same time, the labyrinth cover 5 is not a necessary part of the utility model, the oil throwing prevention part 10 is a necessary part of the utility model, the labyrinth cover 5 and the oil throwing prevention part 10 can adopt a mode of combining two into one, the through hole cover 3 is fixed on the casing 1 to play a role of adjusting and limiting the outer ring of the bearing 2, the position of the oil return collection part 9 corresponds to the position of the oil throwing prevention part 10 in the radial direction of the shaft 6, the oil return collection part 9 can be fixed on the through hole cover, and the oil return collection part 9 and the through hole cover 3 can adopt a mode of combining two into one, the utility model adopts a combined mode; sealing washer 7 dress is in through-hole lid 3, is sealed last link, plays sealed and dustproof effect, and rebound 11 plays the effect of the lasting contact rotating member of sealing washer, the utility model discloses a splash oil device can be for gear or splash oil ring, and splash oil ring 4 plays the effect that keeps off intracavity oil.
The utility model discloses a theory of operation does: after the bearing 2 is lubricated by splashing oil in the inner cavity of the machine shell 1, the oil in the cavity is blocked by the oil retainer ring 4, so that a primary sealing measure is achieved; a small part of oil is diffused to the shaft end along the shaft 6 under the action of axial flow force, the oil splashing prevention part 10 blocks the oil from continuously diffusing to the shaft end, the oil is splashed from the oil splashing prevention part 10 under the action of centrifugal force, the oil thrown from the rotating shaft can be collected by the oil collection part 9, and the oil flows back to the oil cavity of the shell from the oil return channel under the action of gravity, so that a secondary sealing measure is achieved, and the secondary sealing measure adopts a non-contact sealing structure; the oil seal is arranged in the through hole cover 3, plays a role of sealing and dust prevention by seamless contact with the rotating piece on the shaft, prolongs the service life by reducing the friction coefficient between the sealing ring 7 and the rotating piece on the shaft, and achieves a three-level sealing measure which adopts a contact type sealing structure; the application of resilient member 11 in the elastic force of sealing washer 7 is the utility model discloses improve the oil blanket life-span, increase the important mode of sealing reliability.
The utility model realizes effective sealing of thin oil lubrication, and the mode of minor repair is improved to basically avoid the equipment maintenance phenomenon caused by oil leakage and oil leakage because of solving the sealing problem in the prior art; the personnel cost and the shutdown cost of maintenance standby are effectively reduced; the direct reason for this effect was analyzed to be: the reliability of the non-contact sealing structure can not cause sealing failure due to the running abrasion of equipment, and meanwhile, the resilience force of the sealing ring compensates the abrasion loss to avoid the sealing failure caused by the failure of the sealing ring.
The above examples are only specific illustrations of feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments, modifications and alterations without departing from the technical spirit of the present invention are intended to be included in the scope of the present invention.
Claims (5)
1. The utility model provides a thin oil seal structure, passes through bearing (2) including axle (6), axle (6) and fixes in casing (1), is equipped with the splash oil device in casing (1), its characterized in that: the front end of the casing (1) is provided with a through hole cover (3), a sealing ring (7) is arranged in the through hole cover (3), one side of the sealing ring (7) is provided with a rebound part (11), an oil collection and return part (9) is fixed in the through hole cover (3) and arranged on one side of the rebound part (11), the position of the oil collection and return part (9) and the position of the oil blocking and slinging part (10) are arranged in a radial direction of the shaft (6) correspondingly, and the oil blocking and slinging part (10) is connected with an oil blocking ring (4).
2. The thin oil seal structure of claim 1, wherein: the oil splashing device is a gear or an oil splashing ring.
3. The thin oil seal structure of claim 1, wherein: the oil throwing prevention piece (10) is also provided with a labyrinth cover (5).
4. The thin oil seal structure of claim 1, wherein: the oil throwing prevention piece (10) is made of nylon or nonmetal.
5. The thin oil seal structure of claim 1, wherein: the structure of the oil collection and return piece (9) is groove type or hole type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920303831.4U CN209943517U (en) | 2019-03-11 | 2019-03-11 | Thin oil sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920303831.4U CN209943517U (en) | 2019-03-11 | 2019-03-11 | Thin oil sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209943517U true CN209943517U (en) | 2020-01-14 |
Family
ID=69123591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920303831.4U Active CN209943517U (en) | 2019-03-11 | 2019-03-11 | Thin oil sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209943517U (en) |
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2019
- 2019-03-11 CN CN201920303831.4U patent/CN209943517U/en active Active
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