CN213899875U - Friction ring non-thermal inlay type sealing device - Google Patents
Friction ring non-thermal inlay type sealing device Download PDFInfo
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- CN213899875U CN213899875U CN202022407050.5U CN202022407050U CN213899875U CN 213899875 U CN213899875 U CN 213899875U CN 202022407050 U CN202022407050 U CN 202022407050U CN 213899875 U CN213899875 U CN 213899875U
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Abstract
The utility model discloses a friction ring non-thermal inlay type sealing device, which comprises a static ring, a static ring seat, a dynamic ring, a shaft sleeve and a spring, wherein the shaft sleeve is sleeved outside a water pump rotating shaft, the dynamic ring is sleeved outside the shaft sleeve, the static ring seat is connected with the water pump shell, the static ring is sleeved outside the water pump rotating shaft, the static ring seat is sleeved outside a static ring side wall, the static ring is abutted against the static ring seat, a follow-up ring is arranged between the dynamic ring and the static ring, two end faces of the follow-up ring are respectively abutted against the dynamic ring and the static ring, the follow-up ring comprises a large ring and a small ring, the small ring is made of spring steel and comprises a plurality of side wings, a ring body and a cover body A, the ring body is concentrically arranged with a through hole A, the side wings are arranged at the outer annular edge of the ring body, an included angle between the side faces of the ring body and the end faces of the ring body is not zero, the large ring comprises a cover body B, the openings of the cover body A and the cover body B are oppositely arranged, the ring body and the side wings are abutted against the inner top wall of the cover body B, this device can prevent that the elastic restoring force of spring from reducing and leading to sealed effect to weaken.
Description
Technical Field
The utility model relates to a mechanical seal field is a friction ring non-heat inlays formula sealing device particularly.
Background
Mechanical seal generally comprises rotating ring, quiet ring, rotating ring sealing washer, quiet ring sealing washer, spring holder, holding screw, stop pin etc. and its theory of operation is: when the mechanical seal works, the movable ring and the static ring are mutually attached and move relatively by the axial force caused by the pressure of the sealing fluid, the elasticity of the elastic element and the like, a tiny gap is formed at the boundary between the sealing end faces due to the tight fit of the two sealing end faces, when a pressure medium passes through the gap, an extremely thin liquid film is formed, resistance is generated, the medium leakage is prevented, and meanwhile, the end faces are lubricated by the liquid film, so that the long-term sealing effect is obtained.
In the prior art, the mechanical seal only depends on the spring to provide elastic restoring force to enable the movable ring and the static ring to keep in a close contact state, however, when the mechanical seal works, the friction between the movable ring and the static ring can generate heat, so that the spring is in a high-temperature environment, and after the mechanical seal is used for a period of time, the spring can generate abrasion and plastic deformation, so that the elastic force is weakened, and the sealing effect is weakened.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to: provided is a friction ring non-thermal insert type sealing device capable of preventing the reduction of the elastic restoring force of a spring to weaken the sealing effect.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a friction ring non-hot-inlaid type sealing device comprises a static ring, a static ring seat, a movable ring, a shaft sleeve and a spring, wherein the shaft sleeve is sleeved outside a water pump rotating shaft, the movable ring is sleeved outside the shaft sleeve, the static ring seat is connected with a water pump shell, the static ring is sleeved outside the water pump rotating shaft, the static ring seat is sleeved outside the side wall of the static ring, the static ring is abutted against the static ring seat, and a first sealing ring is arranged between the static ring seat and the static ring;
the axial section of the moving ring is of a T-shaped structure comprising a transverse edge and a vertical edge, a boss is arranged on the shaft sleeve, the bottom of the vertical edge is in sliding fit with the outer side wall of the shaft sleeve, the transverse edge is in sliding fit with the top wall of the boss, an accommodating cavity with an opening is arranged on the vertical edge of the moving ring, the spring is partially arranged in the accommodating cavity, two ends of the spring are respectively abutted against the shaft sleeve and the moving ring, and a closed space is defined by the inner wall of the accommodating cavity, the outer wall of the shaft sleeve, the inner wall of the transverse edge and the side wall of the boss;
a follower ring is arranged between the movable ring and the stationary ring, two end faces of the follower ring are respectively abutted against the movable ring and the stationary ring, the follower ring comprises a large ring and a small ring, the small ring is made of spring steel and comprises a plurality of side wings, a ring body and a cover body A, a through hole A with the same radius as the inner circumference of the ring body is arranged on the top wall of the cover body A, the ring body and the through hole A are concentrically arranged, the side wings are arranged on the outer ring edge of the ring body, the included angle between the side wings and the end faces of the ring body is not zero, on the same horizontal plane, the height of the highest point of each side wing is higher than that of the highest point of the ring body, and the ring body and the top wall of the cover body A are concentrically connected;
the large ring comprises a cover body B, the openings of the cover body A and the cover body B are oppositely arranged, the skirt inner wall of the cover body B is in sliding fit with the skirt outer wall of the cover body A, the ring body, the side wings and the inner top wall of the cover body B are abutted, the side wings point to the cover body B, the top wall of the cover body B and the through holes A on the top wall of the cover body A are concentrically provided with through holes B, and the through holes A and the through holes B are used for penetrating the water pump rotating shaft into the through holes A.
Further, a second sealing ring is arranged between the static ring and the static ring seat.
Further, a third sealing ring is arranged between the static ring seat and the water pump shell.
Further, a fourth sealing ring is arranged between the movable ring and the shaft sleeve.
Further, the side wings of the small ring and the ring body of the small ring are integrally formed.
Further, the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are rubber sealing rings.
Furthermore, a fifth sealing ring is arranged on the contact surface of the skirt edge of the cover body B and the skirt edge of the cover body A.
Compared with the prior art, the utility model, following beneficial effect has:
1. in the initial state, the large ring and the small ring are not only pushed by the static ring and the dynamic ring, but also subjected to the elastic restoring force of the side wings, and are in a stress balance state under the action of the spring, when the elastic restoring force of the spring is weakened, the elastic restoring force of the side wings acts on the dynamic ring and the static ring, the dynamic ring moves to a position where the spring and the elastic restoring force of the side wings are rebalanced, and the elastic restoring force of the side wings enables the dynamic ring, the static ring and the follow-up ring to keep in an abutting state, so that the sealing effect is maintained and is not weakened.
2. The inner wall of the accommodating cavity, the outer wall of the shaft sleeve, the inner wall of the transverse edge and the side wall of the boss form a closed space in a surrounding mode, the spring is protected, and the service life of the spring is prolonged.
Drawings
FIG. 1 is an internal structure view of the friction ring non-thermal insert type sealing device of the present invention;
FIG. 2 is a schematic view of the connection of the take-out lever and the jacking mechanism;
fig. 3 is an internal structure view of the jack mechanism.
List of reference numerals
1-static ring seat, 2-static ring, 3-follow-up ring, 4-transverse edge, 5-vertical edge, 6-boss, 7-shaft sleeve, 8-spring, 9-containing cavity, 10-cover body B, 11-cover body A, 12-annular body, 13-flank, 14-fourth sealing ring, 15-second sealing ring and 16-third sealing ring.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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 is to be understood that the terms "upper", "lower", "front", "rear", "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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.
As shown in fig. 1~3, a friction ring non-heat is inlayed formula sealing device, includes quiet ring 2, quiet ring holder 1, rotating ring, axle sleeve 7, spring 8, its characterized in that: the shaft sleeve 7 is sleeved outside the water pump rotating shaft, the moving ring is sleeved outside the shaft sleeve 7, the static ring seat 1 is connected with the water pump shell, the static ring 2 is sleeved outside the water pump rotating shaft, the static ring seat 1 is sleeved outside the side wall of the static ring 2, the static ring 2 is abutted against the static ring seat 1, and a first sealing ring is arranged between the static ring seat 1 and the static ring 2;
the axial section of the moving ring is of a T-shaped structure comprising a transverse edge 4 and a vertical edge 5, a boss 6 is arranged on the shaft sleeve 7, the bottom of the vertical edge 5 is in sliding fit with the outer side wall of the shaft sleeve 7, the transverse edge 4 is in sliding fit with the top wall of the boss 6, an accommodating cavity 9 with an opening is arranged on the vertical edge 5 of the moving ring, the spring 8 is partially arranged in the accommodating cavity 9, two ends of the spring 8 are respectively abutted against the shaft sleeve 7 and the moving ring, and the inner wall of the accommodating cavity 9, the outer wall of the shaft sleeve 7, the inner wall of the transverse edge 4 and the side wall of the boss 6 enclose a closed space;
a follow-up ring 3 is arranged between the movable ring and the static ring 2, two end faces of the follow-up ring 3 are respectively abutted against the movable ring and the static ring 2, the follow-up ring 3 comprises a large ring and a small ring, the small ring is made of spring steel and comprises a plurality of side wings 13, a ring body 12 and a cover body A11, a through hole A with the same radius as the inner circumference of the ring body 12 is arranged on the top wall of the cover body A11, the ring body 12 and the through hole A are concentrically arranged, the side wings 13 are arranged on the outer ring edge of the ring body 12, an included angle between the side wings 13 and the end faces of the ring body 12 is not zero, the height of the highest point of the side wings 13 is higher than that of the ring body 12 on the same horizontal plane, and the ring body 12 and the top wall of the cover body A11 are concentrically connected;
the large ring comprises a cover body B10, openings of the cover body A11 and the cover body B10 are arranged oppositely, the inner wall of the skirt of the cover body B10 is in sliding fit with the outer wall of the skirt of the cover body A11, the annular body 12 and the side wings 13 are abutted to the inner top wall of the cover body B10, the side wings 13 point to the cover body B10, a through hole B is concentrically arranged on the top wall of the cover body B10 and the through hole A on the top wall of the cover body A11, and the through hole A and the through hole B are used for inserting a water pump rotating shaft into the through hole A.
The utility model discloses a theory of operation does: the movable ring is tightly pressed on the fixed ring 2 under the action of the elastic force of the spring 8, when the pump shaft rotates, the movable ring rotates along with the rotating shaft of the water pump, the fixed ring 2 is static, and the contact surfaces of the movable ring, the fixed ring 2 and the follow-up ring 3 form a sealing surface, so that the purpose of preventing a medium from leaking from the junction of the pump shaft and the pump shell is achieved.
The working principle of the follow-up ring 3 is as follows: when the movable ring, the driven ring 3 and the static ring 2 are installed in sequence, the driven ring 3 is installed between the movable ring and the static ring 2, the contact surfaces between the cover A11 and the cover B10 and the movable ring and the static ring 2 form a sealing surface, the gap between the large ring and the small ring is sealed by the skirts of the cover A11 and the cover B10, the large ring and the small ring are squeezed by the elastic restoring force of the spring 8, because the circular ring body 12 and the flank 13 are made of spring steel, when the flank 13 is compressed until the included angle between the flank 13 and the end surface of the circular ring body 12 becomes smaller, the large ring and the small ring are not only pushed by the fixed ring 2 and the movable ring, but also are in a stress balance state under the action of the spring 8 by the elastic restoring force of the flank 13, and when the elastic restoring force of the spring 8 is weakened, the elastic restoring force of the flank 13 can act on the movable ring and the static ring, The stationary ring 2 is held in contact with the stationary ring to maintain the sealing effect without being weakened.
The utility model discloses in, should rationally set up lid A11, lid B10's length prevents to work as when big ring, ringlet are separately, lid A11, lid B10 can't keep sliding fit.
Because the inner wall of the accommodating cavity 9, the outer wall of the shaft sleeve 7, the inner wall of the transverse edge 4 and the side wall of the boss 6 are enclosed to form a closed space, when the spring 8 is installed behind the closed space, the spring 8 cannot be directly connected with a medium in the water pump, the closed space is right for the spring 8 to play a role in protecting the spring from being corroded by the medium in the water pump, and the service life of the spring 8 is prolonged.
The utility model discloses in, should rationally set up the length of horizontal limit 4 makes the rotating ring is relative when axle sleeve 7 removes, horizontal limit 4 remain throughout with the roof sliding fit of boss 6.
Further, a second sealing ring 15 is arranged between the stationary ring 2 and the stationary ring seat 1.
The second sealing ring 15 seals a gap between the static ring 2 and the static ring seat 1, and prevents a medium from leaking from the gap between the static ring 2 and the static ring seat 1.
Further, a third sealing ring 16 is arranged between the static ring seat 1 and the water pump shell.
The third sealing ring 16 seals the gap between the static ring seat 1 and the water pump housing, and prevents the medium from leaking from the gap between the static ring seat 1 and the water pump housing.
Further, a fourth sealing ring 14 is arranged between the movable ring and the shaft sleeve 7.
The fourth seal ring 14 seals a gap between the rotating ring and the shaft sleeve 7, and prevents a medium from leaking from the gap between the rotating ring and the shaft sleeve 7.
Further, the side wings 13 of the small ring are integrally formed with the ring body 12 of the small ring.
The side wing 13 of the small ring and the circular ring body 12 of the small ring are integrally formed, so that no connecting gap exists between the side wing 13 and the circular ring body 12, and the connecting strength of the side wing 13 and the circular ring body 12 is increased.
Further, the first seal ring, the second seal ring 15, the third seal ring 16, and the fourth seal ring 14 are rubber seal rings.
The rubber sealing ring has the advantages of simple structure, compact installation position, good working reliability and low manufacturing cost, and reduces the production cost of the device.
Furthermore, a fifth sealing ring is arranged on the contact surface of the skirt edge of the cover body B10 and the skirt edge of the cover body A11.
By providing a fifth sealing ring (not shown), the sealing effect between the cover B10 and the cover A11 is increased, and the medium is prevented from leaking between the skirts of the covers A11 and B10.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the embodiments in the above description, and the technical concept of the present invention can be within the scope of the present invention, and can be modified to various simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features. In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (7)
1. The utility model provides a formula sealing device is inlayed to friction ring non-heat, includes quiet ring (2), quiet ring holder (1), rotating ring, axle sleeve (7), spring (8), its characterized in that: the shaft sleeve (7) is sleeved outside the water pump rotating shaft, the rotating ring is sleeved outside the shaft sleeve (7), the static ring seat (1) is connected with a water pump shell, the static ring (2) is sleeved outside the water pump rotating shaft, the static ring seat (1) is sleeved outside the side wall of the static ring (2), the static ring (2) is abutted against the static ring seat (1), and a first sealing ring is arranged between the static ring seat (1) and the static ring (2);
the axial cross section of the moving ring is of a T-shaped structure comprising a transverse edge (4) and a vertical edge (5), a boss (6) is arranged on the shaft sleeve (7), the bottom of the vertical edge (5) is in sliding fit with the outer side wall of the shaft sleeve (7), the transverse edge (4) is in sliding fit with the top wall of the boss (6), an accommodating cavity (9) with an opening is formed in the vertical edge (5) of the moving ring, the spring (8) is partially arranged in the accommodating cavity (9), two ends of the spring (8) are respectively abutted to the shaft sleeve (7) and the moving ring, and a closed space is defined by the inner wall of the accommodating cavity (9), the outer wall of the shaft sleeve (7), the inner wall of the transverse edge (4) and the side wall of the boss (6);
a follow-up ring (3) is arranged between the dynamic ring and the static ring (2), two end surfaces of the follow-up ring (3) are respectively abutted against the dynamic ring and the static ring (2), the follow-up ring (3) comprises a large ring and a small ring, the small ring is made of spring steel, which comprises a plurality of side wings (13), a ring body (12) and a cover body A (11), the top wall of the cover body A (11) is provided with a through hole A with the same radius as the inner circumference of the ring body (12), the circular ring body (12) is arranged concentrically with the through hole A, the side wing (13) is arranged on the outer ring edge of the circular ring body (12), the included angle between the side wing (13) and the end surface of the ring body (12) is not zero, on the same horizontal plane, the height of the highest point of the side wing (13) is higher than that of the highest point of the ring body (12), the ring body (12) is concentrically connected with the top wall of the cover body A (11);
the big ring comprises a cover body B (10), the openings of the cover body A (11) and the cover body B (10) are arranged oppositely, the skirt inner wall of the cover body B (10) is in sliding fit with the skirt outer wall of the cover body A (11), the ring body (12), the side wings (13) are abutted to the inner top wall of the cover body B (10), the side wings (13) point to the cover body B (10), the top wall of the cover body B (10) and the through holes A on the top wall of the cover body A (11) are concentrically provided with through holes B, and the through holes A and the through holes B are used for penetrating the water pump rotating shaft into the through holes A.
2. A friction ring non-thermal setting seal as defined in claim 1 wherein: and a second sealing ring (15) is arranged between the static ring (2) and the static ring seat (1).
3. A friction ring non-thermal setting seal as defined in claim 2 wherein: and a third sealing ring (16) is arranged between the static ring seat (1) and the water pump shell.
4. A friction ring non-thermal setting seal as defined in claim 3 wherein: a fourth sealing ring (14) is arranged between the movable ring and the shaft sleeve (7).
5. A friction ring non-thermal setting seal as defined in claim 4 wherein: the side wings (13) of the small ring and the ring body (12) of the small ring are integrally formed.
6. A friction ring non-thermal setting seal as defined in claim 5 wherein: the first sealing ring, the second sealing ring (15), the third sealing ring (16) and the fourth sealing ring (14) are rubber sealing rings.
7. The friction ring non-thermal setting seal as claimed in claim 6 wherein: and a fifth sealing ring is arranged on the contact surface of the skirt edge of the cover body B (10) and the skirt edge of the cover body A (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022407050.5U CN213899875U (en) | 2020-10-26 | 2020-10-26 | Friction ring non-thermal inlay type sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022407050.5U CN213899875U (en) | 2020-10-26 | 2020-10-26 | Friction ring non-thermal inlay type sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN213899875U true CN213899875U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022407050.5U Active CN213899875U (en) | 2020-10-26 | 2020-10-26 | Friction ring non-thermal inlay type sealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996216A (en) * | 2021-12-31 | 2022-02-01 | 浙江汉信科技有限公司 | Dispersion machine with airtight structure |
-
2020
- 2020-10-26 CN CN202022407050.5U patent/CN213899875U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996216A (en) * | 2021-12-31 | 2022-02-01 | 浙江汉信科技有限公司 | Dispersion machine with airtight structure |
| CN113996216B (en) * | 2021-12-31 | 2022-08-12 | 浙江汉信科技有限公司 | Dispersion machine with airtight structure |
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