CN217583180U - Novel oil seal mechanical seal device - Google Patents
Novel oil seal mechanical seal device Download PDFInfo
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- CN217583180U CN217583180U CN202221679075.3U CN202221679075U CN217583180U CN 217583180 U CN217583180 U CN 217583180U CN 202221679075 U CN202221679075 U CN 202221679075U CN 217583180 U CN217583180 U CN 217583180U
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Abstract
The utility model discloses a novel oil seal mechanical sealing device, which relates to the technical field of mechanical sealing and comprises a shell, an embedded ring seat, a static ring, a dynamic ring and a repulsion magnetic group, wherein the shell is arranged on the mechanical sealing seat through a positioning pin; the embedded ring seat is arranged on the inner platform of the shell, and the middle part of the embedded ring seat is sleeved on the main shaft in a clearance fit manner; the static ring is fixed in the embedded ring seat, and the middle part of the static ring is sleeved on the main shaft in a clearance fit manner; the movable ring is fixed at the shaft shoulder of the main shaft, and the end surface of the movable ring is in contact seal with the end surface of the static ring; the repulsive magnetic group is arranged between the contact surfaces of the shell and the embedded ring seat. Compared with the prior art, the device can be exchanged with a standard oil seal, the elastic compensation part comprises two groups of permanent magnets with repulsive magnetic force, the small cylindrical permanent magnets are respectively embedded on the machine seal shell and the static ring embedded ring seat to replace the traditional spring, the technical problems that a common spring is easy to be deformed, and the radial and axial sizes of the sealing device are overlarge are solved, and the service life of the sealing device is greatly prolonged.
Description
Technical Field
The utility model relates to a mechanical seal technical field, concretely relates to novel oil blanket mechanical seal device.
Background
The oil seal is commonly used in rotary equipment for sealing lubricating oil, common forms are various, and all parts of a conveying body, which are provided with liquid lubricating oil and connected with the outside, need oil seals, such as a crankshaft rear oil seal, a gearbox front oil seal, a left half shaft oil seal, a right half shaft oil seal, a main reducer front oil seal, an air compressor crankshaft oil seal and the like. At present, common oil seals mainly comprise rubber parts, the application working condition range of the oil seals is relatively small, and when the main shaft rotating speed ratio is high, the oil pressure (medium) is high, corrosive oil is encountered, and the temperature is higher than 150 ℃, the conventional oil seals cannot adapt. However, many devices are generally designed according to the installation size of a standard oil seal, and cannot be installed by using a special mechanical seal. Simultaneously, when the lip of oil blanket and axle or axle sleeve swivelling contact, its lip also can wear and tear, also can pull out groove type wearing and tearing on axle or axle sleeve, influence normal production.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a novel oil blanket mechanical seal device to improve above-mentioned not enough, the device can exchange with standard oil blanket, and elasticity compensation piece is two sets of magnetic force permanent magnets that repel each other, and small circle column permanent magnet is inlayed respectively on machine seals casing and quiet ring inlay ring seat, in order to replace traditional spring, has solved the too big technical problem of ordinary spring volatile bullet, sealing device radial and axial dimensions, very big extension its working life.
In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:
the utility model provides a novel oil blanket mechanical seal device, installs on the seal receptacle, its characterized in that, include the casing, inlay ring carrier, quiet ring, rotating ring and repel magnetic force group, wherein: the shell is arranged on the machine seal seat through a positioning pin; the embedded ring seat is arranged on the inner table of the shell, and the middle part of the embedded ring seat is sleeved on the main shaft in a clearance fit manner; the static ring is fixed in the embedded ring seat, and the middle part of the static ring is sleeved on the main shaft in a clearance fit manner; the movable ring is fixed at the shaft shoulder of the main shaft, and the end surface of the movable ring is in contact seal with the end surface of the static ring; the repulsion magnetic group is arranged between the contact surfaces of the shell and the embedded ring seat.
Preferably, the device further comprises a movable ring clamping sleeve, wherein the movable ring clamping sleeve is sleeved on the main shaft and used for limiting the movable ring.
Preferably, a static sealing ring is arranged between the contact surface of the shell and the machine seal seat, and a dynamic sealing ring is arranged between the contact surface of the shell and the embedded ring seat.
Preferably, the shell is connected with the embedded ring seat through an anti-rotation pin.
Preferably, one end of the embedded ring seat is provided with a limiting clamp spring for limiting the shell, one end of the embedded ring seat is provided with a mounting table for mounting a static ring, and the embedded ring seat is further provided with a pin hole for connecting an anti-rotation pin.
Preferably, the repulsion magnetic group comprises a first permanent magnet and a second permanent magnet, the first permanent magnet is arranged in the static mounting cavity of the shell, the second permanent magnet is arranged in the dynamic mounting cavity of the embedded ring seat, and the homopolarity of the first permanent magnet and the homopolarity of the second permanent magnet are adjacent to generate repulsion force.
The utility model discloses a novel oil blanket mechanical seal device has following beneficial effect:
the device can be exchanged with a standard oil seal, the elastic compensation piece is two groups of permanent magnets with repulsive magnetic force, and the small cylindrical permanent magnets are respectively embedded on the machine seal shell and the static ring embedded ring seat to replace the traditional spring, so that the technical problems of easy cartridge loss of a common spring and overlarge radial and axial sizes of the sealing device are solved, and the service life of the sealing device is greatly prolonged. In addition, the device can be used in corrosive media with the temperature below 276 ℃, the rotating speed below 10000rpm and the pressure below 25 bar. The elasticity compensation is stable, and the elasticity can be designed according to the requirement. The sealing assembly is in a pre-compressed state before installation, is positioned by the tail limiting clamp spring, and is connected into a whole, so that the sealing installation is easy to realize; after the machine is installed, the distance between the magnetic poles at the two ends is shortened, the repulsive force is increased, and the clamp spring is separated from the sealing shell.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a first partial schematic view of the present invention;
fig. 3 is a second partial schematic view of the present invention;
fig. 4 is a third partial schematic view of the present invention.
In the figure, 1-machine seal seat, 101-positioning pin, 2-shell, 201-static sealing ring, 202-dynamic sealing ring, 203-anti-rotation pin, 204-static installation cavity, 3-embedded ring seat, 301-limiting clamp spring, 302-installation table, 303-pin hole, 304-dynamic installation cavity, 4-main shaft, 5-static ring, 6-dynamic ring, 7-dynamic ring sealing ring clamping sleeve, 8-repulsion magnetic group, 801-first permanent magnet and 802-second permanent magnet.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 4, the oil seal mechanical sealing device is mounted on a machine seal base 1, and is characterized by comprising a shell 2, an embedded ring base 3, a stationary ring 5, a moving ring 6 and a repulsive magnetic group 8, wherein the shell 2 is mounted on the machine seal base 1 through a positioning pin 101; the embedded ring seat 3 is arranged on the inner platform of the shell 2, and the middle part of the embedded ring seat 3 is sleeved on the main shaft 4 in a clearance fit manner; the static ring 5 is fixed in the embedded ring seat 3, and the middle part of the static ring 5 is sleeved on the main shaft 4 in a clearance fit manner; the movable ring 6 is fixed at the shaft shoulder of the main shaft 4, an O-shaped sealing ring is arranged between the movable ring 6 and the main shaft 4, and the end surface of the movable ring 6 is in contact sealing with the end surface of the static ring 5; the repulsive magnetic group 8 is arranged between the contact surfaces of the shell 2 and the mosaic ring seat 3.
Specifically, the device can be exchanged with a standard oil seal, the elastic compensation part is two groups of permanent magnets with repulsive magnetic force, the small cylindrical permanent magnets are respectively embedded on the machine seal shell and the fixed ring embedded ring seat to replace the traditional spring, the technical problems of easy bullet loss of a common spring and overlarge radial and axial sizes of the sealing device are solved, the service life of the sealing device is greatly prolonged, and in addition, the device can be used for corrosive media with the temperature lower than 276 ℃, the rotating speed lower than 10000rpm, and the pressure lower than 25 bar.
In this embodiment, the device further comprises a movable ring clamping sleeve 7, and the movable ring clamping sleeve 7 is sleeved on the main shaft 4 and used for limiting the movable ring 6. A static sealing ring 201 is arranged between the contact surfaces of the shell 2 and the machine seal seat 1, and a dynamic sealing ring 202 is arranged between the contact surfaces of the shell 2 and the embedded ring seat 3. The shell 2 is connected with the embedded ring seat 3 through an anti-rotation pin 203. One end of the embedded ring seat 3 is provided with a limiting clamp spring 301 for limiting the shell 2, one end of the embedded ring seat 3 is provided with an installation platform 302 for installing the static ring 5, and the embedded ring seat 3 is further provided with a pin hole 303 for connecting the anti-rotation pin 203.
It should be noted that the repulsive magnetic group 8 includes a first permanent magnet 801 and a second permanent magnet 802, the first permanent magnet 801 is disposed in the static installation cavity 204 of the housing 2, the second permanent magnet 802 is disposed in the dynamic installation cavity 304 of the embedded ring base 3, and the same poles of the first permanent magnet 801 and the second permanent magnet 802 are adjacent to each other to generate a repulsive force. In this embodiment, the adjacent poles of the first permanent magnet 801 and the second permanent magnet 802 are both S poles.
In practical application, the elasticity compensation is stable, and the elasticity can be designed according to needs. The sealing assembly is in a pre-compressed state before installation, is positioned by the tail limiting clamp spring, and is connected into a whole, so that the sealing installation is easy to realize; after the machine is installed, the distance between the magnetic poles at the two ends is shortened, the repulsive force is increased, and the clamp spring is separated from the sealing shell.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. The utility model provides a novel oil blanket mechanical seal device, installs on seal receptacle (1), its characterized in that, include casing (2), inlay ring carrier (3), quiet ring (5), rotating ring (6) and repel magnetic group (8), wherein:
the shell (2) is arranged on the sealing seat (1) through a positioning pin (101);
the embedded ring seat (3) is arranged on the inner platform of the shell (2), and the middle part of the embedded ring seat (3) is sleeved on the main shaft (4) in a clearance fit manner;
the static ring (5) is fixed in the embedded ring seat (3), and the middle part of the static ring (5) is sleeved on the main shaft (4) in a clearance fit manner;
the movable ring (6) is fixed at the shaft shoulder of the main shaft (4), and the end surface of the movable ring (6) is in contact seal with the end surface of the static ring (5);
the repulsion magnetic group (8) is arranged between the contact surfaces of the shell (2) and the embedded ring seat (3).
2. A novel oil-sealed mechanical sealing device as claimed in claim 1, further comprising a movable ring clamping sleeve (7), wherein the movable ring clamping sleeve (7) is sleeved on the main shaft (4) and used for limiting the movable ring (6).
3. A novel oil-sealed mechanical sealing device as claimed in claim 1, wherein a static sealing ring (201) is arranged between the contact surfaces of the shell (2) and the machine seal seat (1), and a dynamic sealing ring (202) is arranged between the contact surfaces of the shell (2) and the embedded ring seat (3).
4. A new oil-sealed mechanical seal device, as claimed in claim 1, characterized in that, the housing (2) and the embedded ring seat (3) are connected by an anti-rotation pin (203).
5. A novel oil seal mechanical sealing device as claimed in claim 1, wherein one end of the embedded ring seat (3) is provided with a limit snap spring (301) for limiting the shell (2), one end of the embedded ring seat (3) is provided with a mounting table (302) for mounting the static ring (5), and the embedded ring seat (3) is further provided with a pin hole (303) for connecting the anti-rotation pin (203).
6. A new oil-sealed mechanical seal device according to claim 1, characterized in that the said repulsive magnetic group (8) comprises a first permanent magnet (801) and a second permanent magnet (802), the said first permanent magnet (801) is disposed in the static mounting cavity (204) of the housing (2), the second permanent magnet (802) is disposed in the dynamic mounting cavity (304) of the mosaic ring seat (3), the same poles of the first permanent magnet (801) and the second permanent magnet (802) are adjacent to generate repulsive force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221679075.3U CN217583180U (en) | 2022-07-01 | 2022-07-01 | Novel oil seal mechanical seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221679075.3U CN217583180U (en) | 2022-07-01 | 2022-07-01 | Novel oil seal mechanical seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217583180U true CN217583180U (en) | 2022-10-14 |
Family
ID=83533150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221679075.3U Active CN217583180U (en) | 2022-07-01 | 2022-07-01 | Novel oil seal mechanical seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217583180U (en) |
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2022
- 2022-07-01 CN CN202221679075.3U patent/CN217583180U/en active Active
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