CN220354475U - Mechanical seal with good sealing performance - Google Patents
Mechanical seal with good sealing performance Download PDFInfo
- Publication number
- CN220354475U CN220354475U CN202321724239.4U CN202321724239U CN220354475U CN 220354475 U CN220354475 U CN 220354475U CN 202321724239 U CN202321724239 U CN 202321724239U CN 220354475 U CN220354475 U CN 220354475U
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- mounting groove
- sealing
- ring
- fixedly connected
- power component
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- 238000007789 sealing Methods 0.000 title claims abstract description 162
- 239000004575 stone Substances 0.000 claims abstract description 20
- 230000003068 static effect Effects 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model relates to the technical field of mechanical sealing, in particular to a mechanical sealing with good sealing performance, which comprises a lower mounting groove, an upper mounting groove and an upper power component, wherein a sealing cavity is formed between the lower mounting groove and the upper mounting groove, a sealing gasket is arranged at the sealing cavity, the upper mounting groove is penetrated by a fastening piece and is connected to the top end of the lower mounting groove in a threaded manner, the lower power component is arranged in the sealing cavity, the upper power component is positioned at one end of the upper mounting groove far away from the lower mounting groove, the upper power component is connected to the top end of the upper mounting groove through the fastening piece, and the upper power component comprises an upper movable ring seat; the inner walls of the upper stone mill sealing pad and the lower stone mill sealing pad are fixedly connected with the upper sealing ring and the lower sealing ring, so that the tightness of the contact between the upper power assembly and the lower power assembly and other objects is enhanced, and the abrasion of the upper stone mill sealing pad and the lower stone mill sealing pad by other objects is reduced.
Description
Technical Field
The utility model relates to the technical field of mechanical sealing, in particular to a mechanical seal with good sealing performance.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis and keeps fit and relatively slide under the action of fluid pressure and the elasticity (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal. Such as centrifugal pumps, centrifuges, kettles, compressors and the like. Since the drive shaft extends through the inside and outside of the apparatus, there is a gap between the shaft and the apparatus through which the medium in the apparatus leaks outwards, and if the pressure in the apparatus is below atmospheric pressure, air permeates into the apparatus, and therefore a shaft seal means for preventing permeation is necessary. The conventional shaft seals are of various types, and the mechanical seal has the advantages of small leakage amount, long service life and the like, so that the mechanical seal becomes a main shaft sealing mode of the equipment. The mechanical seal is a rotary shaft dynamic seal and is divided into a contact type mechanical seal and a non-contact type mechanical seal, and the contact type mechanical seal is adopted at present. However, the conventional contact type mechanical seal has poor sealing property and has the problem of oil leakage when used for a long time.
Disclosure of Invention
Aiming at the problems in the prior art, a mechanical seal with good sealing performance is provided.
The specific technical scheme is as follows:
the mechanical seal with good sealing performance is designed, the mechanical seal comprises a lower mounting groove, an upper mounting groove and an upper power component, a sealing cavity is formed between the lower mounting groove and the upper mounting groove, a sealing gasket is arranged at the sealing cavity, the sealing gasket is fixedly connected with one end of the lower mounting groove close to the upper mounting groove and stretches into the upper mounting groove, the upper mounting groove is penetrated by a fastening piece and is connected to the top end of the lower mounting groove in a threaded manner, the lower power component is arranged in the sealing cavity, the upper power component is located at one end of the upper mounting groove far away from the lower mounting groove, the upper power component is connected with the top end of the upper mounting groove through a fastening piece, the upper power component comprises an upper movable ring seat, an upper pump effect ring is connected with the inner side of the upper movable ring seat through a fastening piece, an upper stone seal pad is fixedly connected with the inner wall of the upper movable ring seat, the lower mounting groove, the upper power component is connected with the top end of the lower mounting groove through a fastening piece, the lower sealing ring is connected with the lower sealing ring through a rotating pin, the lower sealing ring is connected with the bottom of the sealing ring seat through the sealing ring, the lower sealing ring is tightly fixed with the sealing ring seat, the sealing ring is connected with the bottom of the sealing ring through the sealing ring, the sealing ring is tightly fixed at the bottom of the sealing seat through the sealing ring, the sealing ring is tightly connected with the sealing ring seat through the sealing ring, and the sealing gasket is tightly fixed at the bottom of the sealing seat, the sealing gasket is fixedly connected in the groove of the lower mounting groove and wraps the lower stationary ring, one side, away from the sealing gasket, of the lower stationary ring is fixedly connected with an auxiliary sealing ring, the auxiliary sealing ring is tightly attached to the outer side of the rotating shaft, a sealing ring is fixedly connected to the groove at the top end of the upper mounting groove, an upper stationary ring is fixedly connected to the inner wall of the sealing ring, and a fixed sealing gasket is fixedly connected to the inner wall of the upper stationary ring.
Preferably, the bottom fixedly connected with of pivot goes up the mount pad, go up the mount pad and run through and threaded connection down the mount pad by the fastener, the pivot go up the mount pad and down the mount pad has seted up the through-hole, the inner wall fixedly connected with auxiliary sealing ring of mount pad down.
Preferably, the lower mounting groove, the upper power assembly and the lower power assembly are penetrated by the rotating shaft, and the rotating shaft is movably connected with the lower mounting groove and the upper mounting groove.
The technical scheme has the following advantages or beneficial effects:
1. the device is integrally provided with two layers of sealing structures, namely an upper power assembly and a lower power assembly, and when the sealing effect of the upper power assembly is invalid, the lower power assembly can still seal the device; the fixed sealing gasket is arranged in the upper static ring to absorb the vibration of the upper static ring, so that the stability between the upper static ring and the rotating shaft is improved, and the sealing performance of the mechanical sealing element is improved; an auxiliary sealing ring is arranged in the lower static ring to absorb the vibration of the lower static ring, so that the stability between the lower static ring and the rotating shaft is improved, and the sealing performance of the mechanical sealing piece is improved; the inner walls of the upper stone mill sealing pad and the lower stone mill sealing pad are fixedly connected with the upper sealing ring and the lower sealing ring, so that the tightness of the contact between the upper power assembly and the lower power assembly and other objects is enhanced, and the abrasion of the upper stone mill sealing pad and the lower stone mill sealing pad by other objects is reduced.
2. The upper mounting seat and the lower mounting seat of the rotating shaft are connected with the bottom of the lower mounting groove through fasteners; the auxiliary sealing ring is fixedly connected inside the lower mounting seat of the rotating shaft and is beneficial to sealing ports connected with the rotating shaft, and the tightness of connection between the ports of the rotating shaft and other ports is enhanced.
Drawings
Embodiments of the present utility model will now be described more fully with reference to the accompanying drawings. The drawings, however, are for illustration and description only and are not intended as a definition of the limits of the utility model.
FIG. 1 is a schematic structural view of a mechanical seal with good sealing performance according to the present utility model;
FIG. 2 is a schematic structural view of a mechanical seal with good sealing performance, wherein the mechanical seal is provided with an upper power assembly;
FIG. 3 is a schematic view of the structure of an upper mounting groove in a mechanical seal with good sealing performance;
FIG. 4 is a schematic structural view of a mechanical seal with good sealing performance, in which the lower power assembly is provided in the present utility model;
fig. 5 is a schematic structural view of an auxiliary sealing ring in a mechanical seal with good sealing performance.
The above reference numerals denote: the lower mounting groove 1, the anti-rotation pin 10, the first auxiliary sealing ring 11, the sealing gasket 12, the sealing cavity 13, the lower static ring 14, the upper mounting groove 2, the upper static ring 21, the sealing ring 22, the fixed sealing gasket 23, the upper power assembly 3, the upper moving ring seat 31, the upper pump efficiency ring 32, the upper stone grinding sealing gasket 33, the upper sealing ring 34, the rotating shaft 4, the upper mounting seat 41, the lower mounting seat 42, the second auxiliary sealing ring 44, the lower power assembly 5, the lower moving ring seat 51, the lower pump efficiency ring 52, the lower sealing ring 53 and the lower stone grinding sealing gasket 54.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
Referring to figures 1-5, a mechanical seal with good sealing performance comprises a lower mounting groove 1, an upper mounting groove 2 and an upper power component 3, wherein a sealing cavity 13 is formed between the lower mounting groove 1 and the upper mounting groove 2, a sealing gasket 12 is arranged at the sealing cavity 13, the sealing gasket 12 is fixedly connected with one end of the lower mounting groove 1 close to the upper mounting groove 2 and stretches into the upper mounting groove 2, the upper mounting groove 2 is penetrated by a fastener and is connected to the top end of the lower mounting groove 1 in a threaded manner, the lower power component 5 is arranged in the sealing cavity 13, the upper power component 3 is positioned at one end of the upper mounting groove 2 away from the lower mounting groove 1, the upper power component 3 is connected to the top end of the upper mounting groove 2 through the fastener, the upper power component 3 comprises an upper movable ring seat 31, an upper pump efficiency ring 32 is connected to the inside of the upper movable ring seat 31 through the fastener, one end of the upper pump efficiency ring 32 away from the upper movable ring seat 31 is fixedly connected with an upper stone sealing cushion 33, the inner wall of the upper stone mill sealing pad 33 is fixedly connected with an upper sealing ring 34, a lower mounting groove 1, an upper mounting groove 2, an upper power component 3 and a lower power component 5 are penetrated by a rotating shaft 4, the lower power component 5 comprises a lower movable ring seat 51, a lower pump effect ring 52 is connected inside the lower movable ring seat 51 through a fastener, the bottom end of the lower pump effect ring 52 is fixedly connected with a lower stone mill sealing pad 54, the inner wall of the lower stone mill sealing pad 54 is fixedly connected with a lower sealing ring 53, the bottom of the lower stone mill sealing pad 54 is tightly attached to the bottom of a sealing cavity 13 on the lower mounting groove 1, a lower stationary ring 14 is fixedly connected at a groove of one end of the lower mounting groove 1 close to the upper mounting groove 2, an anti-rotation pin 10 is fixedly connected at a groove of the lower mounting groove 1, the anti-rotation pin 10 prevents the lower stationary ring 14, the lower stationary ring 14 is positioned below the sealing gasket 12, the sealing gasket 12 is fixedly connected in the groove of the lower mounting groove 1 and wraps the lower stationary ring 14, the first auxiliary sealing ring 11 of one side fixedly connected with that sealing washer 12 is kept away from to quiet ring 14 down, the outside of pivot 4 is hugged closely to first auxiliary sealing ring 11, go up mounting groove 2 top recess fixedly connected with sealing washer 22, the inner wall fixedly connected with of sealing washer 22 goes up quiet ring 21, go up quiet ring 21's inner wall fixedly connected with fixed sealing pad 23, this device wholly has two-layer seal structure, be respectively power pack 3 and power pack 5 down, when last power pack 3 sealed effect inefficacy, power pack 5 still can seal this device down, go up the movable ring seat 51 including: a movable ring, a corrugated pipe and a lower sealing ring; the lower ring seat 31 also includes: the movable ring, the corrugated pipe and the lower sealing ring.
Further, the bottom of the rotating shaft 4 is fixedly connected with an upper mounting seat 41, the upper mounting seat 41 is penetrated by a fastener and is in threaded connection with a lower mounting seat 42, through openings are formed in the rotating shaft 4, the upper mounting seat 41 and the lower mounting seat 42, and the inner wall of the lower mounting seat 42 is fixedly connected with a second auxiliary sealing ring 44; the lower mounting groove 1, the upper mounting groove 2, the upper power assembly 3, the power assembly 5 and the connecting part of the rotating shaft 4 are all provided with sealing gaskets, the first auxiliary sealing ring 11 is arranged in the lower static ring 14, the vibration of the lower static ring 14 is absorbed, the stability between the lower static ring 14 and the rotating shaft 4 is improved, the sealing performance of a mechanical sealing piece is improved, the fixed sealing gaskets 23 are arranged in the upper static ring 21, the vibration of the upper static ring 21 is absorbed, the stability between the upper static ring 21 and the rotating shaft 4 is improved, and the sealing performance of the mechanical sealing piece is improved.
Further, the lower mounting groove 1, the upper mounting groove 2, the upper power component 3 and the lower power component 5 are penetrated by a rotating shaft 4, and the rotating shaft 4 is movably connected with the lower mounting groove 1 and the upper mounting groove 2; the upper mounting seat and the lower mounting seat of the rotating shaft are connected with the bottom of the lower mounting groove through fasteners; the second auxiliary sealing ring 44 is fixedly connected inside the lower mounting seat 42 of the rotating shaft 4, and the second auxiliary sealing ring 44 is beneficial to sealing the connecting port connected with the rotating shaft 4, so that the sealing performance of the connection of the port of the rotating shaft 4 with other ports is enhanced.
Working principle: when the device is used, the upper movable ring seat 31 and the upper pump effect ring 32 are connected together through the fastening piece in a threaded manner, the upper movable ring seat 31 and the upper pump effect ring 32 are connected to form an upper power component 3, the upper power component 3 comprises a mechanical seal, the upper movable ring seat 31, a movable ring, a corrugated pipe, a sealing piece, an upper sealing ring 34, the upper pump effect ring 32 and an upper stone mill sealing pad 33, the upper power component 3 is penetrated through the fastening piece, the upper power component 3 is mounted at the groove of the top end of the upper mounting groove 2, the groove of the upper mounting groove 2 comprises an upper static ring 21, an upper sealing ring 22 and a fixed sealing pad 12, an object in the groove of the upper mounting groove 2 is tightly attached to the outer side of the upper pump effect ring 32, the upper mounting groove 2 is penetrated and connected to the lower mounting groove 1 through the fastening piece by the fastening piece, a sealing cavity 13 is formed between the upper mounting groove 2 and the lower mounting groove 1, a sealing gasket 12 is arranged at the joint of the sealing cavity 13, the lower power component 5 is fixedly connected to the sealing gasket 12, the lower power component 5 is arranged in the sealing cavity 13, the lower power component 5 comprises the mechanical seal, a lower seat 51, the movable ring, the corrugated pipe, the sealing piece, the lower sealing ring 53, the lower sealing ring 52, the lower sealing pad 52 is connected to the lower sealing ring 4, the upper power component 4 is fixedly connected to the lower power component 4 through the upper sealing groove 2 and the lower sealing groove 4, the upper power component 4 is fixedly connected to the lower power component 4, the upper power component 4 and the lower power component 4, the lower power component 4 is fixedly connected to the upper power component 4 through the upper sealing groove 2 and the lower sealing groove 4, the upper sealing seat 4, the lower sealing seat 4 and the upper sealing seat 4, the lower 4 and the lower sealing seat 4 and the upper sealing seat 4 and the lower 4.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included within the scope of the present utility model.
Claims (3)
1. A mechanical seal with good tightness, characterized in that: including lower mounting groove (1), go up mounting groove (2) and last power component (3), down mounting groove (1) with set up sealed chamber (13) between last mounting groove (2), sealed chamber (13) department is equipped with sealing washer (12), sealing washer (12) fixed connection down mounting groove (1) is close to the one end of last mounting groove (2), and stretches into in last mounting groove (2), go up mounting groove (2) by the fastener run through and threaded connection to the top of lower mounting groove (1), be equipped with down power component (5) in sealed chamber (13), go up power component (3) are located go up mounting groove (2) keep away from down the one end of mounting groove (1), go up power component (3) through the fastener connection go up the top of mounting groove (2), go up power component (3) including last rotating ring seat (31), the inside of going up rotating ring seat (31) is connected with last pump effect ring (32) through the fastener, go up rotating ring (32), be away from on the one end of last rotating ring (33) of sealing washer (1), seal ring (33) have on the fixed pad (33) is kept away from down in the mounting groove (2) The upper power assembly (3) and the lower power assembly (5) are penetrated by the rotating shaft (4), the lower power assembly (5) comprises a lower movable ring seat (51), a lower pump effect ring (52) is connected inside the lower movable ring seat (51) through a fastener, a lower stone grinding sealing pad (54) is fixedly connected to the bottom end of the lower pump effect ring (52), a lower sealing ring (53) is fixedly connected to the inner wall of the lower stone grinding sealing pad (54), the bottom of the lower stone grinding sealing pad (54) is tightly attached to the bottom of a sealing cavity (13) on the lower mounting groove (1), a lower static ring (14) is fixedly connected to the groove at one end of the lower mounting groove (1), an anti-rotation pin (10) is fixedly connected to the groove of the lower mounting groove (1), the anti-rotation pin (10) is used for anti-rotation of the lower static ring (14), the lower static ring (14) is positioned below the sealing pad (12), the sealing pad (12) is fixedly connected to the lower static ring (14) and is tightly attached to the first side of the lower sealing ring (14), the auxiliary sealing ring (11) is tightly attached to the outer side of the first sealing ring (11), the sealing ring (22) is fixedly connected to the groove at the top end of the upper mounting groove (2), the inner wall of the sealing ring (22) is fixedly connected with the upper stationary ring (21), and the inner wall of the upper stationary ring (21) is fixedly connected with the fixed sealing gasket (23).
2. A mechanical seal with good sealing properties according to claim 1, characterized in that: the bottom fixedly connected with of pivot (4) goes up mount pad (41), go up mount pad (41) and run through and threaded connection down mount pad (42) by the fastener, pivot (4) go up mount pad (41) and down mount pad (42) have seted up the through-hole, the inner wall fixedly connected with second auxiliary seal ring (44) of lower mount pad (42).
3. A mechanical seal with good sealing properties according to claim 2, characterized in that: the lower mounting groove (1), the upper mounting groove (2), the upper power assembly (3) and the lower power assembly (5) are penetrated by the rotating shaft (4), and the rotating shaft (4) is movably connected with the lower mounting groove (1) and the upper mounting groove (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724239.4U CN220354475U (en) | 2023-07-03 | 2023-07-03 | Mechanical seal with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724239.4U CN220354475U (en) | 2023-07-03 | 2023-07-03 | Mechanical seal with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220354475U true CN220354475U (en) | 2024-01-16 |
Family
ID=89479052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321724239.4U Active CN220354475U (en) | 2023-07-03 | 2023-07-03 | Mechanical seal with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220354475U (en) |
-
2023
- 2023-07-03 CN CN202321724239.4U patent/CN220354475U/en active Active
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