CN219639440U - Built-in double-end-face mechanical seal for bottom stirring - Google Patents
Built-in double-end-face mechanical seal for bottom stirring Download PDFInfo
- Publication number
- CN219639440U CN219639440U CN202223515553.XU CN202223515553U CN219639440U CN 219639440 U CN219639440 U CN 219639440U CN 202223515553 U CN202223515553 U CN 202223515553U CN 219639440 U CN219639440 U CN 219639440U
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- ring
- mechanical seal
- sealed box
- sleeve
- double
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- 238000003756 stirring Methods 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims description 14
- 230000003068 static effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The utility model belongs to the technical field of mechanical sealing, and particularly relates to a double-end-face mechanical seal for built-in bottom stirring. This mechanical seal has cup jointed the cauldron mouth flange at axle sleeve middle part fixed surface, and cauldron mouth flange top sets up the sealed box, and the inside cavity setting that is of sealed box, and the axle sleeve is located the inside one section of sealed box and has cup jointed atmospheric end quiet ring and atmospheric end moving ring sub-assembly respectively, and sealed box top is provided with the end cover, adopts holding screw fixed connection between end cover and the sealed box, is provided with medium end quiet ring between end cover and the axle sleeve. According to the utility model, the traditional mechanical sealing kettle mouth flange is arranged at the lowest side of the mechanical seal, and the position close to the medium is displaced towards the atmosphere, so that all parts above the mechanical sealing kettle mouth flange are placed into the equipment, the installation height of the outer side of the mechanical seal is effectively shortened, the design length of the stirring shaft is shortened, and the stability of the whole equipment is improved.
Description
Technical Field
The utility model belongs to the technical field, and particularly relates to a double-end-face mechanical seal for built-in bottom stirring.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end surfaces perpendicular to a rotation axis and keeping fit and sliding relatively under the action of fluid pressure and elasticity (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal, and is a shaft seal device of a rotary machine, such as a centrifugal pump, a centrifugal machine, a reaction kettle, a compressor and the like.
At present, mechanical sealing can also be used on some stirring equipment to prevent leakage, and practical double-end-face mechanical sealing on the stirring equipment can lead to increasing the length of a stirring shaft, and when the length of the stirring shaft is increased, the stirring equipment is easy to generate eccentric separation, so that unstable stirring is caused.
Therefore, it is necessary to solve the above-mentioned problems by providing a double mechanical seal for internal bottom stirring.
Disclosure of Invention
In order to solve the problems, the utility model provides the double-end-face mechanical seal for the built-in bottom stirring, and the traditional mechanical seal kettle opening flange is arranged at the lowest side of the mechanical seal, and is close to the medium position to displace towards the atmosphere, so that all parts above the mechanical seal kettle opening flange are placed into the equipment, the installation height of the outer side of the mechanical seal is effectively shortened, the design length of a stirring shaft can be shortened, the stability of the whole equipment is improved, and the problems in the background art are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a built-in end stirring is with bi-polar face mechanical seal, includes the axle sleeve, axle sleeve middle part fixed surface has cup jointed the cauldron mouth flange, cauldron mouth flange top is provided with the sealed box, the inside cavity that sets up of sealed box, and the axle sleeve is located the inside one section of sealed box and has cup jointed atmospheric end quiet ring and atmospheric end moving ring sub-assembly respectively, sealed box top is provided with the end cover, adopt holding screw fixed connection between end cover and the sealed box, be provided with the quiet ring of medium end between end cover and the axle sleeve, the one end that the quiet ring of medium end is located the end cover outside is provided with the medium end moving ring, fixed connection between medium end moving ring and the axle sleeve.
Further, a spring seat is arranged on one end surface of the medium end static ring, which is positioned in the sealing box body, a push ring and a spring are arranged in the spring seat, and the push ring and the spring are connected with the spring seat by a set screw.
Further, the surface of the atmosphere end moving ring assembly is provided with a moving ring sleeve, the moving ring sleeve is connected with the shaft sleeve by a key, and a clamp spring is arranged between the end part of the moving ring sleeve and the shaft sleeve.
Further, the bottom of cauldron mouth flange is provided with the bearing frame, the bottom of bearing frame is provided with bearing cover, adopt holding screw to be connected between bearing cover and the bearing frame, the inside aligning roller bearing that is provided with of bearing frame, and be provided with the skeleton oil blanket between aligning roller bearing and the cauldron mouth flange.
Furthermore, one side of the bottom of the bearing gland is provided with a positioning card, the positioning card is connected with the bearing gland by a set screw, and the bottom of the bearing gland is also provided with a lifting screw.
Furthermore, the outer ring of the locking chuck is fixedly sleeved on the surface of the bottom of the shaft sleeve, the inner ring of the locking chuck is connected with the surface of the outer ring of the locking chuck in a staggered manner, and the outer ring of the locking chuck is fixedly connected with the inner part of the locking clamp ring through a hexagon head bolt.
Further, O-shaped rings are arranged on the inner wall of the shaft sleeve, between the atmospheric end moving ring assembly and the shaft sleeve, between the atmospheric end static ring and the end cover, between the medium end static ring and the kettle mouth flange, between the medium end moving ring and the shaft sleeve and between the self-aligning roller bearing and the shaft sleeve.
The utility model has the technical effects and advantages that:
according to the utility model, the traditional mechanical sealing kettle mouth flange is arranged at the lowest side of the mechanical seal, and the position close to the medium is displaced towards the atmosphere, so that all parts above the mechanical sealing kettle mouth flange are placed into the equipment, the installation height of the outer side of the mechanical seal is effectively shortened, the design length of the stirring shaft is shortened, and the stability of the whole equipment is improved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model;
in the figure: 1. a shaft sleeve; 2. a kettle opening flange; 3. sealing the box body; 4. an atmospheric end static ring; 5. an atmospheric end ring assembly; 6. an end cap; 7. a medium end static ring; 8. a media end ring; 9. a spring seat; 10. a push ring; 11. a spring; 12. a movable sleeve; 13. clamping springs; 14. a bearing seat; 15. a bearing gland; 16. a self-aligning roller bearing; 17. a framework oil seal; 18. positioning the card; 19. a suspension ring screw; 20. locking the outer ring of the chuck; 21. locking the inner ring of the chuck; 22. an O-ring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. 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.
The utility model provides a double-end-face mechanical seal for internal bottom stirring, as shown in figure 1, which comprises a shaft sleeve 1, wherein a kettle mouth flange 2 is fixedly sleeved on the surface of the middle part of the shaft sleeve 1, a sealing box body 3 is arranged at the top of the kettle mouth flange 2, the inside of the sealing box body 3 is hollow, an atmospheric end static ring 4 and an atmospheric end dynamic ring assembly 5 are respectively sleeved on one section of the shaft sleeve 1 positioned in the sealing box body 3, an end cover 6 is arranged at the top of the sealing box body 3, the end cover 6 is fixedly connected with the sealing box body 3 by adopting a set screw, a medium end static ring 7 is arranged between the end cover 6 and the shaft sleeve 1, a medium end dynamic ring 8 is arranged at one end of the medium end static ring 7 positioned outside the end cover 6, the medium end dynamic ring 8 is fixedly connected with the shaft sleeve 1, a spring seat 9 is arranged at one end surface of the medium end static ring 7 positioned in the sealing box body 3, the inside push ring 10 and spring 11 that are provided with of spring holder 9, push ring 10 and spring 11 are connected with spring holder 9 with holding screw, medium end moving ring 8 and medium end stationary ring 7 of this double-end mechanical seal are designed into stationary structure, and set up spring 11 and push ring 10 in the back of medium end stationary ring 7, thus with the whole sealed face external in the medium, medium end moving ring 8 and medium end stationary ring 7 sealed face outside diameter the same have dead angle, thus make the material in the apparatus can not run into the gap of traditional structure, can breed the bacterium in the dead angle too much, in addition both sides terminal surface size unanimity can prevent the wearing and tearing of hard material to the terminal surface effectively, put the sealed box 3 of mechanical seal into the inside of the apparatus, can reduce the installation height of mechanical seal in the outside by 50%, can be suitable for all racks almost, and the single-end mechanical seal can be directly replaced, the design of the length of the main shaft is not influenced by the built-in part, and the length of the whole stirring shaft is shortened, so that the stirring is more stable than the traditional design.
Further, a movable sleeve 12 is arranged on the surface of the atmosphere end movable ring assembly 5, the movable sleeve 12 is connected with the shaft sleeve 1 by adopting a key, and a clamp spring 13 is arranged between the end part of the movable sleeve 12 and the shaft sleeve 1; the bottom of cauldron mouth flange 2 is provided with bearing frame 14, the bottom of bearing frame 14 is provided with bearing gland 15, be connected with adopting set screw between bearing gland 15 and the bearing frame 14, be provided with aligning roller bearing 16 inside the bearing frame 14, and be provided with the skeleton oil blanket 17 between aligning roller bearing 16 and the cauldron mouth flange 2, one side of bearing gland 15 bottom is provided with location card 18, be connected with adopting set screw between location card 18 and the bearing gland 15, bearing gland 15 bottom still is provided with rings screw 19, sleeve 1 bottom surface fixation cup joints locking chuck outer loop 20, locking chuck outer loop 20 surface cross connection has locking chuck inner ring 21, adopt hexagon head bolt fixed connection between locking chuck outer loop 20 and the locking snap ring inside, all be provided with O type circle 22 between sleeve 1 inner wall, atmosphere end ring assembly 5 and the sleeve 1, between atmosphere end ring 4 and end cover 6, between medium end ring 7 and the cauldron mouth flange 2, between medium end ring 8 and the sleeve 1 and between aligning roller bearing 16 and the sleeve 1.
According to the utility model, the traditional mechanical sealing kettle mouth flange 2 is arranged at the lowest side of the mechanical seal, and the position close to a medium is displaced towards the atmosphere, so that all parts above the mechanical sealing kettle mouth flange 2 are placed into the equipment, the installation height of the outer side of the mechanical seal is effectively shortened, the design length of a stirring shaft is shortened, and the stability of the whole equipment is improved.
Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. The utility model provides a built-in end stirring is with bi-polar face mechanical seal, includes axle sleeve (1), its characterized in that: the utility model discloses a sealing device for a gas turbine engine, including axle sleeve (1), cauldron mouth flange (2) have been cup jointed to axle sleeve (1) middle part fixed surface, cauldron mouth flange (2) top is provided with sealed box (3), sealed box (3) inside is the cavity setting, and axle sleeve (1) are located sealed box (3) inside one section and have cup jointed atmospheric end quiet ring (4) and atmospheric end moving ring sub-assembly (5) respectively, sealed box (3) top is provided with end cover (6), adopt holding screw fixed connection between end cover (6) and sealed box (3), be provided with medium end quiet ring (7) between end cover (6) and axle sleeve (1), the one end that medium end quiet ring (7) are located the outside of end cover (6) is provided with medium end moving ring (8), fixed connection between medium end moving ring (8) and the axle sleeve (1).
2. The double-ended mechanical seal for internal bottom stirring of claim 1, wherein: the medium end static ring (7) is located one end surface inside the sealing box body (3) and is provided with a spring seat (9), a push ring (10) and a spring (11) are arranged inside the spring seat (9), and the push ring (10) and the spring (11) are connected with the spring seat (9) through set screws.
3. The double-ended mechanical seal for internal bottom stirring of claim 1, wherein: the surface of the atmosphere end moving ring assembly (5) is provided with a moving ring sleeve (12), the moving ring sleeve (12) is connected with the shaft sleeve (1) by a key, and a clamp spring (13) is arranged between the end part of the moving ring sleeve (12) and the shaft sleeve (1).
4. The double-ended mechanical seal for internal bottom stirring of claim 1, wherein: the bottom of cauldron mouth flange (2) is provided with bearing frame (14), the bottom of bearing frame (14) is provided with bearing gland (15), adopt holding screw to be connected between bearing gland (15) and bearing frame (14), inside aligning roller bearing (16) that are provided with of bearing frame (14), and be provided with skeleton oil blanket (17) between aligning roller bearing (16) and cauldron mouth flange (2).
5. The double-ended mechanical seal for internal bottom stirring of claim 4, wherein: the bearing gland (15) bottom one side is provided with location card (18), adopt holding screw to be connected between location card (18) and the bearing gland (15), bearing gland (15) bottom still is provided with flying ring screw (19).
6. The double-ended mechanical seal for internal bottom stirring of claim 1, wherein: the locking chuck is characterized in that a locking chuck outer ring (20) is fixedly sleeved on the bottom surface of the shaft sleeve (1), locking chuck inner rings (21) are connected to the surface of the locking chuck outer ring (20) in a staggered mode, and the locking chuck outer ring (20) is fixedly connected with the inner part of the locking clamp ring through a hexagon head bolt.
7. The double-ended mechanical seal for internal bottom stirring of claim 4, wherein: o-shaped rings (22) are arranged on the inner wall of the shaft sleeve (1), between the atmosphere end moving ring assembly (5) and the shaft sleeve (1), between the atmosphere end stationary ring (4) and the end cover (6), between the medium end stationary ring (7) and the kettle opening flange (2), between the medium end moving ring (8) and the shaft sleeve (1) and between the aligning roller bearing (16) and the shaft sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223515553.XU CN219639440U (en) | 2022-12-28 | 2022-12-28 | Built-in double-end-face mechanical seal for bottom stirring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223515553.XU CN219639440U (en) | 2022-12-28 | 2022-12-28 | Built-in double-end-face mechanical seal for bottom stirring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219639440U true CN219639440U (en) | 2023-09-05 |
Family
ID=87811318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223515553.XU Active CN219639440U (en) | 2022-12-28 | 2022-12-28 | Built-in double-end-face mechanical seal for bottom stirring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219639440U (en) |
-
2022
- 2022-12-28 CN CN202223515553.XU patent/CN219639440U/en active Active
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