CN217271901U - Rotary mechanical oil seal - Google Patents
Rotary mechanical oil seal Download PDFInfo
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- CN217271901U CN217271901U CN202220006077.XU CN202220006077U CN217271901U CN 217271901 U CN217271901 U CN 217271901U CN 202220006077 U CN202220006077 U CN 202220006077U CN 217271901 U CN217271901 U CN 217271901U
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- ring
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- groove
- oil seal
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Abstract
The application discloses rotation type mechanical oil seal, including first connecting portion and second connecting portion, first connecting portion link to each other and lean on with the bearing counterbalance with the end cover, the second connecting portion link to each other with the pivot, first connecting portion with the second connecting portion rotate to be connected, first connecting portion with be provided with seal assembly on the second connecting portion, seal assembly includes first sealing washer and second sealing washer, first sealing washer is used for sealing clearance between first connecting portion and the end cover, the second sealing washer is used for sealing clearance between second connecting portion and the pivot. This application can play better sealed effect to the grease.
Description
Technical Field
The application relates to the technical field of oil seals, in particular to a rotary mechanical oil seal.
Background
An oil seal is a mechanical element used to seal grease (oil is the most common liquid substance in a transmission system and also refers to a general liquid substance) and isolates parts requiring lubrication from driven parts so as not to allow oil leakage.
Traditional oil blanket structure can not play comparatively qualified sealed effect mostly, and traditional oil blanket can produce wearing and tearing to the rotating shaft simultaneously, influences sealed effect.
SUMMERY OF THE UTILITY MODEL
In order to play better sealed effect to grease, this application provides a rotation type mechanical oil seal.
The application provides a rotation type mechanical oil seal adopts following technical scheme:
the utility model provides a rotation type mechanical oil seal, includes first connecting portion and second connecting portion, first connecting portion link to each other with the end cover and lean on with the bearing counterbalance, the second connecting portion link to each other with the pivot, first connecting portion with the second connecting portion rotate to be connected, first connecting portion with be provided with seal assembly on the second connecting portion, seal assembly includes first sealing washer and second sealing washer, first sealing washer is used for sealing clearance between first connecting portion and the end cover, the second sealing washer is used for sealing clearance between second connecting portion and the pivot.
Through above-mentioned technical scheme, first connecting portion lean on the back with the bearing, cooperation seal assembly seals the grease in the oil tank, and simultaneously, pivot and the fixed back of second connecting portion, second connecting portion rotate with first connecting portion and are connected, do not influence the normal use of pivot, and first sealing washer makes the cooperation between first connecting portion and the end cover inseparabler, and the second sealing washer makes the cooperation between second connecting portion and the pivot inseparabler.
Further, the first connecting portion includes a stationary ring, the stationary ring is fixedly connected to the end cover, a first sealing groove is formed in an outer annular wall of the stationary ring, and the first sealing ring is sleeved in the first sealing groove.
Through above-mentioned technical scheme, first sealing washer can seal completely to the clearance between quiet ring and the end cover, can prevent grease from outwards spilling from the clearance between quiet ring and the end cover completely.
Furthermore, the second connecting portion include a rotating ring, the rotating ring is fixedly connected with the rotating shaft, a second sealing groove is formed in the inner annular wall of the rotating ring, and the second sealing ring is sleeved in the second sealing groove.
Through above-mentioned technical scheme, the second sealing washer can be sealed completely to the clearance between rotating ring and the pivot, can prevent grease from outwards leaking from the clearance between rotating ring and the pivot completely.
Furthermore, a first connecting ring is arranged on the static ring, a second connecting ring is arranged on the dynamic ring, and the first connecting ring and the second connecting ring are attached to each other.
Through above-mentioned technical scheme, first go-between and second go-between have increased the area of contact between quiet ring and the rotating ring, make the rotation between movable ring and the quiet ring be connected more stably.
Furthermore, a third sealing groove is formed in the first connecting ring, the sealing assembly comprises a third sealing ring, and the third sealing ring is sleeved in the third sealing groove.
Through the technical scheme, the third sealing ring seals the gap between the first connecting ring and the second connecting ring, and the possibility that grease flows out from the gap between the first connecting ring and the second connecting ring is reduced.
Optionally, a fourth seal groove is formed in the second connection ring, and the third seal ring is clamped with the fourth seal groove.
Through above-mentioned technical scheme, third seal groove and fourth seal groove carry on spacingly to the third sealing washer jointly, make the third sealing washer set up more steadily between first go-between ring and second go-between.
Optionally, an end of the first connecting ring abuts against an end surface of the movable ring.
Through adopting above-mentioned technical scheme, the stability of being connected between rotating ring and the quiet ring can be promoted to the terminal surface of the tip of first go-between ring and rotating ring back of closing, has further reduced the possibility that grease flowed from the clearance between first go-between ring and the second go-between ring.
Optionally, an end of the second connection ring abuts against an end surface of the stationary ring.
Through adopting above-mentioned technical scheme, the tip of second go-between and the terminal surface of quiet ring support the back, can promote the stability of being connected between rotating ring and the quiet ring, further reduced the possibility that grease flowed out from the clearance between first go-between ring and the second go-between.
Further, the third sealing ring is an elastic part.
Through adopting above-mentioned technical scheme, the assembly between first go-between and the second go-between has been made things convenient for to the third sealing washer that elasticity set up, has made things convenient for with the third sealing washer block between third seal groove and fourth seal groove.
Furthermore, a positioning groove is formed in the stationary ring, and the groove wall of the positioning groove abuts against the end cover.
Through adopting above-mentioned technical scheme, the constant head tank plays the positioning action to the quiet ring, has promoted the holistic installation accuracy of device, and the setting of constant head tank is spacing to the quiet ring simultaneously, makes the quiet ring more stable with being connected between the end cover.
In summary, the present application includes at least one of the following advantageous technical effects:
(1) the first sealing ring can completely seal a gap between the static ring and the end cover, and can completely prevent grease from leaking outwards from the gap between the static ring and the end cover;
(2) the second sealing ring can completely seal the gap between the movable ring and the rotating shaft, and can completely prevent the grease from leaking out from the gap between the driven ring and the rotating shaft;
(3) the third sealing ring seals a gap between the first connecting ring and the second connecting ring, and the possibility that grease flows out from the gap between the first connecting ring and the second connecting ring is reduced.
Drawings
FIG. 1 is a top view of the overall structure of the present application;
FIG. 2 is a cross-sectional view of the overall structure of the present application;
fig. 3 is an enlarged view of a portion a in fig. 2.
The reference numbers in the figures illustrate:
1. a stationary ring; 11. a first seal groove; 12. positioning a groove; 2. a moving ring; 21. a second seal groove; 22. a stabilizing slot; 3. a first connecting ring; 31. a third seal groove; 4. a second connection ring; 41. a fourth seal groove; 5. a seal assembly; 51. a first seal ring; 52. a second seal ring; 53. a third seal ring; 6. an end cap; 7. a rotating shaft; 8. a third connecting ring; 9. and (5) positioning the boss.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a rotary mechanical oil seal, please refer to fig. 1-3, which includes a first connecting portion and a second connecting portion, and a sealing assembly 5 is disposed on the first connecting portion and the second connecting portion.
Referring to fig. 1 and 2, first connecting portion include quiet ring 1, second connecting portion include rotating ring 2, quiet ring 1 and end cover 6 fixed connection just support with bearing (not shown in the figure) and lean on, quiet ring 1 is close to integrated into one piece on the end wall of rotating ring 2 and has location boss 9, the external diameter of location boss 7 is greatly greater than the external diameter of quiet ring 1, the turning between location boss 7 and the quiet ring 1 is constant head tank 12, constant head tank 12 supplies end cover 6 to support and supports, rotating ring 2 and pivot 7 fixed connection, quiet ring 1 rotates with rotating ring 2 to be connected.
Referring to fig. 2 and 3, a first connecting ring 3 is coaxially arranged on the side wall of the stationary ring 1 close to the moving ring 2, the inner ring wall of the first connecting ring 3 is attached to the rotating shaft 7, a second connecting ring 4 is coaxially arranged on the side wall of the moving ring 2 close to the stationary ring 1, the inner ring wall of the second connecting ring 4 is attached to the outer ring wall of the first connecting ring 3, the end portion of the first connecting ring 3 abuts against the end wall of the moving ring 2, and the end wall of the second connecting ring 4 abuts against the end wall of the stationary ring 1.
Referring to fig. 2 and 3, the sealing assembly 5 includes a first sealing ring 51, the first sealing ring 51 is coaxially sleeved outside the stationary ring 1, a first sealing groove 11 is formed on a groove wall of the positioning groove 12, the first sealing ring 51 is located in the first sealing ring 51, and an outer annular wall of the first sealing ring 51 abuts against an inner annular wall of the end cover 6.
Referring to fig. 2 and 3, the first sealing ring 51 can completely seal the gap between the stationary ring 1 and the end cover 6, and completely prevent grease from leaking out from the gap between the stationary ring 1 and the end cover 6.
Referring to the stationary ring 1, the sealing assembly 5 includes a second sealing ring 52, the second sealing ring 52 is coaxially sleeved outside the rotating shaft 7, the inner annular wall of the moving ring 2 is provided with a second sealing groove 21, the second sealing ring 52 is located in the second sealing groove 21, and the outer annular wall of the second sealing ring 52 abuts against the bottom wall of the second sealing groove 21.
Referring to the stationary ring 1, the second sealing ring 52 can completely seal the gap between the moving ring 2 and the rotating shaft 7, and completely prevent the grease from leaking out from the gap between the moving ring 2 and the rotating shaft 7.
Referring to the moving ring 2, the outer annular wall of the first connecting ring 3 is provided with a third sealing groove 31, the inner annular wall of the second connecting ring 4 is provided with a fourth sealing groove 41, the third sealing groove 31 is communicated with the fourth sealing groove 41, and a third sealing ring 53 is coaxially sleeved in the third sealing groove 31.
Referring to the rotating ring 2, the third seal ring 53 seals the gap between the first connecting ring 3 and the second connecting ring 4, and reduces the possibility of grease flowing out from the gap between the first connecting ring 3 and the second connecting ring 4.
Referring to fig. 3, a third connecting ring 8 is integrally formed on the end surface of the positioning boss 9, the third connecting ring 8 is located on one side of the positioning boss 9 departing from the positioning groove 12, a stabilizing groove 22 is formed on the end surface of the moving ring 2 close to the stationary ring, and the end portion of the third connecting ring 8 is inserted into the stabilizing groove 22 and attached to the groove wall of the stabilizing groove 22.
Referring to fig. 3, the third connection ring 8 and the stabilizing groove 22 further limit the connection between the stationary ring 1 and the moving ring 2, thereby increasing the contact area between the stationary ring 1 and the moving ring 2 and stabilizing the moving ring 2 during the rotation.
Referring to fig. 3, the first seal ring 51, the second seal ring 52, and the third seal ring 53 are elastic members and made of a material such as rubber.
The application embodiment of the application relates to a principle of implementation of a rotary mechanical oil seal: when the oil seal is assembled, the first sealing ring 51 is sleeved in the first sealing groove 11, the third sealing ring 53 is sleeved in the third sealing groove 31, then the second sealing ring 52 and the movable ring 2 are sleeved on the rotating shaft 7, so that the second connecting ring 4 is sleeved outside the first connecting ring 3, and external force is applied to the movable ring 2, so that the third sealing ring 53 is deformed and clamped in the fourth sealing groove 41. And finally, integrally pressing the oil seal in the end cover 6 to enable the positioning groove 12 to be abutted against the end cover 6.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A rotation type mechanical oil seal which characterized in that: including first connecting portion and second connecting portion, first connecting portion link to each other and lean on with bearing counterbalance with end cover (6), the second connecting portion link to each other with pivot (7), first connecting portion with the second connecting portion rotate to be connected, first connecting portion with be provided with seal assembly (5) on the second connecting portion, seal assembly (5) include first sealing washer (51) and second sealing washer (52), first sealing washer (51) are used for sealing clearance between first connecting portion and end cover (6), second sealing washer (52) are used for sealing clearance between second connecting portion and pivot (7).
2. A rotary machine oil seal as defined in claim 1, wherein: the first connecting portion comprises a static ring (1), the static ring (1) is fixedly connected with the end cover (6), a first sealing groove (11) is formed in the outer ring wall of the static ring (1), and the first sealing ring (51) is sleeved in the first sealing groove (11).
3. A rotary machine oil seal as defined in claim 2, wherein: the second connecting portion include rotating ring (2), rotating ring (2) and pivot (7) fixed connection, second seal groove (21) have been seted up on the inner ring wall of rotating ring (2), second sealing washer (52) cover is located in second seal groove (21).
4. A rotary machine oil seal as defined in claim 3, wherein: the movable ring is characterized in that a first connecting ring (3) is arranged on the static ring (1), a second connecting ring (4) is arranged on the movable ring (2), and the first connecting ring (3) and the second connecting ring (4) are attached to each other.
5. A rotary machine oil seal as defined in claim 4, wherein: the first connecting ring (3) is provided with a third sealing groove (31), the sealing assembly (5) comprises a third sealing ring (53), and the third sealing ring (53) is sleeved in the third sealing groove (31).
6. A rotary machine oil seal as defined in claim 5, wherein: and a fourth sealing groove (41) is formed in the second connecting ring (4), and the third sealing ring (53) is clamped with the fourth sealing groove (41).
7. A rotary machine oil seal according to claim 4, wherein: the end part of the first connecting ring (3) is abutted against the end surface of the movable ring (2).
8. A rotary machine oil seal as defined in claim 7, wherein: the end part of the second connecting ring (4) is abutted against the end surface of the static ring (1).
9. A rotary machine oil seal as defined in claim 5, wherein: the third sealing ring (53) is an elastic piece.
10. A rotary machine oil seal as defined in claim 9, wherein: the fixed ring (1) is provided with a positioning groove (12), and the groove wall of the positioning groove (12) is abutted against the end cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220006077.XU CN217271901U (en) | 2022-01-04 | 2022-01-04 | Rotary mechanical oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220006077.XU CN217271901U (en) | 2022-01-04 | 2022-01-04 | Rotary mechanical oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217271901U true CN217271901U (en) | 2022-08-23 |
Family
ID=82892127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220006077.XU Active CN217271901U (en) | 2022-01-04 | 2022-01-04 | Rotary mechanical oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217271901U (en) |
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2022
- 2022-01-04 CN CN202220006077.XU patent/CN217271901U/en active Active
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