CN214007589U - Sealing structure of fan and fan - Google Patents
Sealing structure of fan and fan Download PDFInfo
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- CN214007589U CN214007589U CN202022380522.2U CN202022380522U CN214007589U CN 214007589 U CN214007589 U CN 214007589U CN 202022380522 U CN202022380522 U CN 202022380522U CN 214007589 U CN214007589 U CN 214007589U
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Abstract
The utility model relates to a centrifugal fan equipment field, concretely relates to seal structure and fan of fan. A sealing structure of a fan comprises a fan shaft, a sealing assembly and a circulating pipe; the sealing assembly comprises an end cover, a first oil seal, a sealing seat, a second oil seal and a special end seat, and the end cover, the first oil seal, the sealing seat, the second oil seal and the special end seat are sequentially arranged on the fan shaft from left to right; the special end seat is provided with a circulating pipe. A fan comprises the sealing structure of the fan, a motor, an air inlet, an impeller, an air outlet, a shell, a coupling and a bearing; the coupling is connected with the motor and the fan shaft. The leakage problem of the corrosive gas conveying fan shaft can be solved, the sealing effect is good, the structure is simple, the installation is convenient, and the running period of the fan can be greatly prolonged.
Description
Technical Field
The utility model relates to a centrifugal fan equipment field, concretely relates to seal structure and fan of fan.
Background
Centrifugal fans are a large class of general equipment widely used in industrial production, and are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and ventilation and air induction of boilers and industrial furnaces and kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion. When the centrifugal fan for industrial production is used for conveying gas, the sealing between the fan shell and the main shaft is poor, gas leakage is easy to cause, and danger is easy to cause. Especially when corrosive gases are transported, the leaking gases pose a safety hazard.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses a first purpose provides a seal structure of fan, solves gaseous leakage problem, the utility model discloses a second purpose provides a fan.
In order to achieve the above object, the utility model provides a following technical scheme:
a sealing structure of a fan comprises a fan shaft, a sealing assembly and a circulating pipe; the sealing assembly comprises an end cover, a first oil seal, a sealing seat, a second oil seal and a special end seat, and the end cover, the first oil seal, the sealing seat, the second oil seal and the special end seat are sequentially arranged on the fan shaft from left to right; the special end seat is provided with a circulating pipe.
As a preferable technical scheme, a suction duct is arranged at the lower part of the special end seat and is communicated with the circulating pipe.
As a preferable technical scheme, the top end of the sealing seat is provided with an oil filling port.
As a preferable technical solution, a sealing cover is provided on the oil filler.
As a preferred technical scheme, the first oil seal, the second oil seal and the fan shaft are in interference fit.
As a preferable technical solution, the sealing seat and the special end seat are connected by a thread or a bolt.
As a preferable technical solution, the end cover and the sealing seat are connected by a screw thread or a bolt.
A fan comprises a sealing structure of the fan, a motor, an air inlet, an impeller, an air outlet, a shell, a coupler and a bearing; the coupling is connected with the motor and the fan shaft.
As a preferable technical solution, the circulation pipe communicates the suction duct and the air inlet.
As a preferred technical solution, the coupling is mounted on the casing.
Has the advantages that:
the utility model provides a sealing structure of a fan and the fan, wherein a sealing cavity is formed by double oil seals, and lubricating grease is added into the cavity to jointly form a sealing structure of a fan shell and a main shaft; by arranging the oil filling port on the sealing seat, lubricating grease can be added more conveniently. The low pressure of the air inlet of the fan sucks accumulated gas, the problem of leakage at the shaft of the corrosive gas conveying fan can be solved, the sealing effect is good, the structure is simple, the installation is convenient, and the running period of the fan can be greatly prolonged.
Drawings
Fig. 1 is a schematic structural view of a sealing structure of a fan according to the present invention;
fig. 2 is a schematic structural diagram of the fan provided by the present invention.
The device comprises a fan shaft 1, a sealing component 2, a circulation pipe 3, an end cover 4, a first oil seal 51, a second oil seal 52, a sealing seat 6, a special end seat 7, an air suction duct 8, an oil filling port 9, a sealing cover 10, a motor 11, an air inlet 12, an impeller 13, an air outlet 14, a machine shell 15, a coupler 16 and a bearing 17.
Detailed Description
The disclosure may be further understood in conjunction with the following detailed description of preferred embodiments of the invention and the examples included.
In this document, relational terms such as first, second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a component, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such component, apparatus, or device.
The meaning of "and/or" in the present invention means that they exist individually or both at the same time.
The meaning of "inside and outside" in the present invention means that the direction of the inside of the pointing device is inside and vice versa for the device itself, rather than being specifically limited to the mechanism of the device of the present invention.
The utility model discloses in the meaning of "left and right" indicate that the reader is just when the drawing, the left side of reader is left promptly, and the right of reader is right promptly, and is not right the utility model discloses a specific limited of device mechanism.
The meaning of "up and down" in the present invention means that when the reader is right facing the drawings, the top of the reader is up, and the bottom of the reader is down, rather than the specific limitation of the mechanism of the present invention.
The term "connected" as used herein may mean either a direct connection between elements or an indirect connection between elements through other elements.
When describing embodiments of the present application, the use of "preferred," "preferably," "more preferred," etc. means that the subject technology can provide certain benefits under certain circumstances. However, other solutions may be preferred, under the same or other circumstances. In addition, the expression of one or more preferred solutions does not imply that other solutions are not available, nor is it intended to exclude other solutions from the scope of the invention.
The utility model firstly provides a sealing structure of a fan, which comprises a fan shaft, a sealing component and a circulating pipe; the sealing assembly comprises an end cover, a first oil seal, a sealing seat, a second oil seal and a special end seat, and the end cover, the first oil seal, the sealing seat, the second oil seal and the special end seat are sequentially arranged on the fan shaft from left to right; the special end seat is provided with a circulating pipe.
In some preferred embodiments, the lower portion of the special end seat is provided with a suction duct, and the suction duct is communicated with the circulation tube.
In some preferred embodiments, the top end of the sealing seat is provided with a fuel filling opening. Grease can be added at any time.
In some preferred embodiments, a sealing cover is provided on the oil filler opening.
In some preferred embodiments, the first oil seal, the second oil seal and the fan shaft are in interference fit, so that the sealing effect is ensured.
In some preferred embodiments, the sealing seat and the special end seat are connected by threads and/or bolts, so that the stability of the equipment is enhanced and the sealing effect is ensured.
In some preferred embodiments, the end cover and the sealing seat are in threaded connection and/or bolted connection, so that the stability of the device is enhanced and the sealing effect is ensured.
The utility model also provides a fan, which comprises the sealing structure, the motor, the air inlet, the impeller, the air outlet, the shell, the coupling and the bearing of the fan; the coupling is connected with the motor and the fan shaft.
In some preferred embodiments, the circulation duct communicates the suction duct and the air inlet.
In some preferred embodiments, the special end mount is mounted on the housing.
The working principle is as follows: the motor is powered on, the fan shaft is driven to rotate through the coupler, the fan shaft drives the impeller to rotate, and the impeller rotates at a high speed to form negative pressure at the air inlet, absorb external air and discharge the air from the air outlet; the special end seat penetrates through the fan shaft and is fixed on the shell, the first oil seal penetrates through the fan shaft and is matched with the protruding structure of the special end seat, the sealing seat penetrates through the fan shaft and is in contact with the first oil seal, the second oil seal penetrates through the fan shaft and is in contact with the sealing seat, and the end cover penetrates through the fan shaft and is matched and fixed with the sealing seat. After the sealing assembly is installed, the first oil seal and the second oil seal form a sealing cavity, lubricating grease is injected into the oil filling port, the sealing cover is installed on the oil filling port, and the lubricating grease and the sealing cavity jointly form a sealing structure of the main shaft of the fan. The special end seat is provided with an air suction duct which is connected with the air inlet through the circulating pipe, and the air accumulated at the shaft of the fan is sucked through the circulating pipe and the air suction duct in the special end seat by utilizing the low-pressure area of the air inlet, so that the air leakage is reduced, the sealing effect is good, the structure is simple, the installation is convenient, and the running period of the fan can be greatly prolonged.
Examples
The technical solution of the present invention is described in detail below with reference to the embodiments, but the scope of the present invention is not limited to the embodiments.
The working principle is as follows: the power supply is switched on, the motor 11 is started, the fan shaft 1 is driven to rotate through the coupler 16, the fan shaft 1 drives the impeller 13 to rotate, and the impeller 13 rotates at a high speed, so that negative pressure is formed at the air inlet 12, external air is absorbed, and the air is discharged from the air outlet 14; the special end seat 7 penetrates through the fan shaft 1 and is fixed on the machine shell 15, the first oil seal 51 penetrates through the fan shaft 1 and is matched with a convex structure of the special end seat 7, the seal seat 6 penetrates through the fan shaft 1 and is contacted with the first oil seal 51, the second oil seal 52 penetrates through the fan shaft 1 and is contacted with the seal seat 6, and the end cover 4 penetrates through the fan shaft 1 and is matched and fixed with the seal seat 6. After the sealing assembly 2 is installed, the first oil seal 51 and the second oil seal 52 form a sealing cavity, lubricating grease is injected into the oil filling port 9, the sealing cover 10 is installed on the oil filling port 9, and the lubricating grease and the sealing cavity together form a sealing structure of the main shaft of the fan. The special end seat 7 is provided with an air suction duct 8 which is connected with the air inlet through the circulating pipe 3, and the air accumulated at the fan shaft 1 is sucked by utilizing the low-pressure area of the air inlet through the circulating pipe 3 and the air suction duct 8 in the special end seat 7, so that the air leakage is reduced, the sealing effect is good, the structure is simple, the installation is convenient, and the running period of the fan can be greatly prolonged.
Embodiment 2, a blower according to fig. 1 and 2 comprises a motor 11, a blower shaft 1, a sealing assembly 2, a circulation pipe 3, an air inlet 12, an impeller 13, an air outlet 14, a casing 15, a coupling 16, and a bearing 17; the sealing assembly 2 comprises an end cover 4, a first oil seal 51, a sealing seat 6, a second oil seal 52 and a special end seat 7, wherein the end cover 4, the first oil seal 51, the sealing seat 6, the second oil seal 52 and the special end seat 7 are sequentially arranged on the fan shaft 1 from left to right; the special end seat 7 is provided with a circulating pipe 3. The lower part of the special end seat 7 is provided with an air suction duct 8, and the air suction duct 8 is communicated with the circulating pipe 3. The sealing seat 6 is connected with the special end seat 7 through threads and bolts, so that the stability of the equipment is enhanced and the sealing effect is ensured; the end cover 4 and the sealing seat 6 are connected through threads and bolts, so that the stability of the equipment is enhanced, and the sealing effect is guaranteed. The circulation pipe 3 is communicated with the air suction duct 8 and the air inlet 12, and the special end seat 7 is installed on the machine shell 15.
The top end of the sealing seat 6 is provided with an oil filling port 9, and lubricating grease can be added at any time; the oil filling opening 9 is provided with a sealing cover 10.
Embodiment 3, a fan according to fig. 1 and 2 comprises a motor 11, a fan shaft 1, a sealing assembly 2, a circulation pipe 3, an air inlet 12, an impeller 13, an air outlet 14, a casing 15, a coupling 16, and a bearing 17; the sealing assembly 2 comprises an end cover 4, a first oil seal 51, a sealing seat 6, a second oil seal 52 and a special end seat 7, wherein the end cover 4, the first oil seal 51, the sealing seat 6, the second oil seal 52 and the special end seat 7 are sequentially arranged on the fan shaft 1 from left to right; the special end seat 7 is provided with a circulating pipe 3. The lower part of the special end seat 7 is provided with an air suction duct 8, and the air suction duct 8 is communicated with the circulating pipe 3. The sealing seat 6 is connected with the special end seat 7 through threads and bolts, so that the stability of the equipment is enhanced and the sealing effect is ensured; the end cover 4 and the sealing seat 6 are connected through threads and bolts, so that the stability of the equipment is enhanced, and the sealing effect is guaranteed. The circulation pipe 3 is communicated with the air suction duct 8 and the air inlet 12, and the special end seat 7 is installed on the machine shell 15.
The top end of the sealing seat 6 is provided with an oil filling port 9, and lubricating grease can be added at any time; the oil filling port 9 is provided with a sealing cover 10; the first oil seal 51, the second oil seal 52 and the fan shaft 1 are in interference fit, and the sealing effect is guaranteed.
It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. A sealing structure of a fan is characterized by comprising a fan shaft (1), a sealing assembly (2) and a circulating pipe (3); the sealing assembly (2) comprises an end cover (4), a first oil seal (51), a sealing seat (6), a second oil seal (52) and a special end seat (7), wherein the end cover (4), the first oil seal (51), the sealing seat (6), the second oil seal (52) and the special end seat (7) are sequentially installed on the fan shaft (1) from left to right; the special end seat (7) is provided with a circulating pipe (3).
2. The sealing structure of the fan according to claim 1, wherein a suction duct (8) is arranged at the lower part of the special end seat (7), and the suction duct (8) is communicated with the circulating pipe (3).
3. The sealing structure of the fan according to claim 2, wherein the top end of the sealing seat (6) is provided with an oil filling port (9).
4. A sealing structure of a blower fan according to claim 3, characterized in that a sealing cover (10) is provided on the oil filler opening (9).
5. The sealing structure of the fan according to claim 3, wherein the first oil seal (51), the second oil seal (52) and the fan shaft (1) are in interference fit.
6. The sealing structure of the fan according to claim 3, wherein the sealing seat (6) and the special end seat (7) are connected by screw threads or bolts.
7. The sealing structure of the fan according to claim 3, wherein the end cover (4) and the sealing seat (6) are connected by screw threads or bolts.
8. A fan, characterized by comprising a sealing structure of the fan according to any one of claims 2 to 7, a motor (11), an air inlet (12), an impeller (13), an air outlet (14), a casing (15), a coupling (16) and a bearing (17); the coupling (16) is connected with the motor (11) and the fan shaft (1).
9. The fan according to claim 8, wherein the circulation duct (3) communicates the suction duct (8) with the inlet opening (12).
10. The fan according to claim 8, characterised in that the special end seat (7) is mounted on the housing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022380522.2U CN214007589U (en) | 2020-10-23 | 2020-10-23 | Sealing structure of fan and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022380522.2U CN214007589U (en) | 2020-10-23 | 2020-10-23 | Sealing structure of fan and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214007589U true CN214007589U (en) | 2021-08-20 |
Family
ID=77302544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022380522.2U Active CN214007589U (en) | 2020-10-23 | 2020-10-23 | Sealing structure of fan and fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214007589U (en) |
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2020
- 2020-10-23 CN CN202022380522.2U patent/CN214007589U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220308 Address after: 223800 100 meters south of the intersection of Yongjin road and Kexing Road, development zone, Sucheng District, Suqian City, Jiangsu Province Patentee after: Photoelectric materials Co.,Ltd. Address before: 071000 No.6, Lekai South Street, Jingxiu District, Baoding City, Hebei Province Patentee before: CHINA LUCKY Group Corp. |
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| TR01 | Transfer of patent right |