CN213479453U - Simple structure's anti-dress formula spherical seal structure - Google Patents
Simple structure's anti-dress formula spherical seal structure Download PDFInfo
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- CN213479453U CN213479453U CN202022236184.5U CN202022236184U CN213479453U CN 213479453 U CN213479453 U CN 213479453U CN 202022236184 U CN202022236184 U CN 202022236184U CN 213479453 U CN213479453 U CN 213479453U
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- simple structure
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Abstract
The utility model discloses a simple structure's anti-dress formula spherical seal structure, including pivot and casing, the one end of pivot runs through the casing and rotates with the casing to be connected, the pivot is located the inside one end surface of casing and is equipped with cyclic annular arch, a plurality of screw holes have been seted up to the one end surface of casing, the outside of casing and the position that is close to the screw hole are equipped with the middle section gland, the surface of middle section gland runs through there are a plurality ofly fasteners corresponding with the screw hole. The utility model discloses in, because the inside shape of casing is concave sphere, and spherical sealing ring's shape is convex sphere to make the stress that spherical sealing ring received inwards, under extruded state, the pressure that can bear is bigger, and then makes sealed aligning position by being close to the center by being removed to the direction that is closer to the pivot, thereby can carry out effectual compensation to the offset.
Description
Technical Field
The utility model relates to a seal structure technical field especially relates to a simple structure's anti-dress formula spherical seal structure.
Background
The spherical sealing structure is a dynamic sealing structure widely applied to media such as steam, hot oil and the like. Because the temperature of the high-temperature medium is far higher than the temperature resistance limit of some auxiliary seals of the mechanical seal, the bearing can not be used as a guiding means under most working condition parameters. The spherical sealing structure gives up the two weaknesses, uses the aligning of the spherical main seal to replace the auxiliary seal, and uses the high-temperature oilless bearing to replace the common metal bearing. Also compensated by the spring, the primary seal ring still maintains the end face seal structure characteristics.
Most of the existing spherical seals on the market are designed in a matching mode that a shaft is used as a convex ball and a main sealing element is used as a concave ball. Because main sealing ring is the concave ball, when the pipeline pressure boost, most strength acts on main sealing ring, and at this moment, under the effect of stress, the main sealing ring is damaged more easily appears. And the existing spherical surface aligning position is closer to the center, and the generated aligning effect is poorer.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a reverse-mounted spherical sealing structure with simple structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a reverse spherical sealing structure with a simple structure comprises a rotating shaft and a shell, wherein one end of the rotating shaft penetrates through the shell and is rotatably connected with the shell, the outer surface of one end, positioned inside the shell, of the rotating shaft is provided with an annular bulge, the outer surface of one end of the shell is provided with a plurality of threaded holes, a middle-section gland is arranged outside the shell and close to the threaded holes, the outer surface of the middle-section gland is penetrated with a plurality of fasteners corresponding to the threaded holes, one side, far away from the shell, of the outer surface of the middle-section gland is fixedly connected with a tee cover, one end, positioned inside the shell, of the rotating shaft is sleeved with a spherical sealing ring at a position between the annular bulge and the inner wall of the shell, a support ring is sleeved at the outer surface of one end, positioned inside the shell, of the, the both ends of spring contact with the surface of middle section gland and support ring respectively, fixedly connected with quick change flange is established to the one end surface cover that the pivot is located the casing outside.
As a further description of the above technical solution:
one end of the fastener extends to the inside of the threaded hole and is fixedly connected with the threaded hole through threads.
As a further description of the above technical solution:
the outer surface of the middle section gland and one side close to the rotating shaft are provided with a first limiting groove, and one end of the spring extends to the inside of the first limiting groove.
As a further description of the above technical solution:
the outer surface of the support ring and the side close to the spring are provided with a second limiting groove, and one end of the spring extends to the inside of the second limiting groove.
As a further description of the above technical solution:
and sealing gaskets are arranged on two sides of the outer surface of the middle-section gland and on one side respectively connected with the shell and the three-way cover.
As a further description of the above technical solution:
the surface of casing and the one side of keeping away from the middle section gland imbed in proper order has vice support ring and retaining ring, vice support ring and retaining ring are run through in proper order to the pivot, just the retaining ring is connected with the inside block of casing.
The utility model discloses following beneficial effect has:
this simple structure's anti-dress formula spherical seal structure, pivot through setting up, a housing, the middle section gland, a spring, the support ring, cyclic annular arch, spherical sealing ring and vice support ring, when the middle section gland is installed, drive spring extrusion support ring, thereby extrude spherical sealing ring through cyclic annular arch, because the inside shape of casing is concave sphere, and spherical sealing ring's shape is convex sphere, thereby make the stress that spherical sealing ring received inwards, under extruded state, the pressure that can bear is bigger, and then make sealed aligning position by being close to the center by being removed to the direction that is closer to the pivot, thereby can carry out effectual compensation to the offset, can further support the countershaft through the vice support ring that sets up, thereby make the pivot more stable when high-speed rotation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Illustration of the drawings:
1. a rotating shaft; 2. a housing; 3. a middle section gland bush; 4. a three-way cover; 5. quickly replacing the flange; 6. a spherical sealing ring; 7. a support ring; 8. a spring; 9. a fastener; 10. an annular projection; 11. a threaded hole; 12. a first limit groove; 13. a second limit groove; 14. a gasket; 15. an auxiliary support ring; 16. and a retainer ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, 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 invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present invention provides an embodiment: a reverse spherical sealing structure with a simple structure comprises a rotating shaft 1 and a shell 2, one end of the rotating shaft 1 penetrates through the shell 2 and is rotatably connected with the shell 2, the outer surface of one end, positioned inside the shell 2, of the rotating shaft 1 is provided with an annular bulge 10, the outer surface of one end of the shell 2 is provided with a plurality of threaded holes 11, the outer part of the shell 2 and the position close to the threaded holes 11 are provided with a middle-section gland 3, the outer surface of the middle-section gland 3 penetrates through a plurality of fasteners 9 corresponding to the threaded holes 11, one side, far away from the shell 2, of the outer surface of the middle-section gland 3 is fixedly connected with a three-way cover 4, the position, positioned between the annular bulge 10 and the inner wall of the shell 2, of the rotating shaft 1 is sleeved with a spherical sealing ring 6, the outer surface, positioned between the annular bulge 10 and the middle-section gland 3, of the, the both ends of spring 8 contact with the surface of middle section gland 3 and support ring 7 respectively, and fixedly connected with quick change flange 5 is established to the one end surface cover that pivot 1 is located the casing 2 outside.
One end of the fastener 9 extends to the inside of the threaded hole 11 and is fixedly connected with the threaded hole 11 through threads, and the middle-section gland 3 and the shell 2 are conveniently separated through threaded connection.
The surface of support ring 7 and the one side that is close to spring 8 have seted up second spacing groove 13, and spring 8's one end extends to the inside of second spacing groove 13, and second spacing groove 13 is for the convenience spacing is carried out to spring 8's the other end to can avoid spring 8's the other end to appear removing.
The sealing gasket 14 is arranged on both sides of the outer surface of the middle-section gland 3 and on one side connected with the shell 2 and the three-way cover 4 respectively, and the sealing performance of the sealing structure can be greatly improved through the sealing gasket 14.
The surface of casing 2 and keep away from one side of middle section gland 3 and imbed vice support ring 15 and retaining ring 16 in proper order, and vice support ring 15 and retaining ring 16 are run through in proper order to pivot 1, and retaining ring 16 is connected with casing 2's inside block, can further support pivot 1 through the vice support ring 15 that sets up to make pivot 1 more stable when high-speed rotation, retaining ring 16 is for the convenience of prescribing a limit to vice support ring 15.
The working principle is as follows: when using simple structure's anti-dress formula spherical seal structure, during the installation of middle section gland 3, drive spring 8 extrusion support ring 7, thereby extrude spherical sealing ring 6 through annular protrusion 10, because the inside shape of casing 2 is concave sphere, and spherical sealing ring 6's shape is convex sphere, thereby make the stress that spherical sealing ring 6 received inwards, under the extruded state, the pressure that can bear is bigger, and then make sealed aligning position by being close to the center by being removed to the direction that is closer to pivot 1, thereby can carry out effectual compensation to the offset, can further support pivot 1 through the vice support ring 15 that sets up, thereby make pivot 1 more stable when high-speed rotation.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a simple structure's anti-dress formula spherical seal structure, includes pivot (1) and casing (2), its characterized in that: the one end of pivot (1) runs through casing (2) and rotates with casing (2) to be connected, the one end surface that pivot (1) is located casing (2) inside is equipped with cyclic annular arch (10), a plurality of screw holes (11) have been seted up to the one end surface of casing (2), the outside of casing (2) and the position that is close to screw hole (11) are equipped with middle section gland (3), the surface of middle section gland (3) runs through has a plurality of fasteners (9) corresponding with screw hole (11), one side fixedly connected with tee bend lid (4) of casing (2) are just kept away from to the surface of middle section gland (3), pivot (1) is located the one end of casing (2) inside and is located the position cover between cyclic annular arch (10) and casing (2) inner wall and is equipped with spherical sealing ring (6), pivot (1) is located the position surface that casing (2) inside one end just is located between cyclic annular arch (10) and middle section gland (3) and is equipped with spherical The cover is equipped with support ring (7), be equipped with spring (8) between middle section gland (3) and support ring (7), the both ends of spring (8) contact with the surface of middle section gland (3) and support ring (7) respectively, fixedly connected with quick change flange (5) are established to the outside one end surface cover that is located casing (2) in pivot (1).
2. The reverse-mounted spherical sealing structure with simple structure as claimed in claim 1, wherein: one end of the fastener (9) extends to the interior of the threaded hole (11) and is fixedly connected with the threaded hole (11) through threads.
3. The reverse-mounted spherical sealing structure with simple structure as claimed in claim 1, wherein: first spacing groove (12) have been seted up to the surface of middle section gland (3) and the one side that is close to pivot (1), the one end of spring (8) extends to the inside in first spacing groove (12).
4. The reverse-mounted spherical sealing structure with simple structure as claimed in claim 1, wherein: the outer surface of the support ring (7) and one side close to the spring (8) are provided with a second limiting groove (13), and one end of the spring (8) extends to the inside of the second limiting groove (13).
5. The reverse-mounted spherical sealing structure with simple structure as claimed in claim 1, wherein: and sealing gaskets (14) are arranged on two sides of the outer surface of the middle-section pressing cover (3) and on one side respectively connected with the shell (2) and the three-way cover (4).
6. The reverse-mounted spherical sealing structure with simple structure as claimed in claim 1, wherein: the outer surface of the shell (2) and one side of the middle-section gland (3) away from the outer surface are sequentially embedded with an auxiliary support ring (15) and a check ring (16), the rotating shaft (1) sequentially penetrates through the auxiliary support ring (15) and the check ring (16), and the check ring (16) is connected with the inner portion of the shell (2) in a clamping mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022236184.5U CN213479453U (en) | 2020-10-10 | 2020-10-10 | Simple structure's anti-dress formula spherical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022236184.5U CN213479453U (en) | 2020-10-10 | 2020-10-10 | Simple structure's anti-dress formula spherical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213479453U true CN213479453U (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022236184.5U Active CN213479453U (en) | 2020-10-10 | 2020-10-10 | Simple structure's anti-dress formula spherical seal structure |
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| Country | Link |
|---|---|
| CN (1) | CN213479453U (en) |
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- 2020-10-10 CN CN202022236184.5U patent/CN213479453U/en active Active
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