CN212838432U - Long service life's special type fan - Google Patents
Long service life's special type fan Download PDFInfo
- Publication number
- CN212838432U CN212838432U CN202020557605.1U CN202020557605U CN212838432U CN 212838432 U CN212838432 U CN 212838432U CN 202020557605 U CN202020557605 U CN 202020557605U CN 212838432 U CN212838432 U CN 212838432U
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- China
- Prior art keywords
- bearing
- impeller
- main shaft
- service life
- long service
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- Expired - Fee Related
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Abstract
The utility model relates to a special fan with long service life, which comprises a frame, wherein two bearing blocks are arranged on the frame, a main shaft is rotatably arranged on the bearing blocks, an impeller is fixed at one end of the main shaft, and the other end of the main shaft is connected with a motor in a transmission way; a heat insulation cover is arranged on the rear side of the impeller, and a heat dissipation impeller is fixed on the main shaft between the heat insulation cover and the bearing seat; the frame is also fixedly provided with an aggregation shell, the aggregation shell is positioned between the heat dissipation impeller and the bearing seat, and the heat dissipation impeller extends into the aggregation shell; the radiating pipe is internally provided with a radiating air flow channel; the radiating pipe is communicated with the inner cavity of the gathering shell after being sequentially contacted with the two bearing seats. Through the mutual cooperation of cooling tube and heat dissipation impeller, force to form rapid air current in bearing frame department to can be better dispel the heat to main shaft and bearing frame, thereby great extension the life of fan.
Description
Technical Field
The utility model relates to a fan especially relates to a long service life's special type fan.
Background
The plug-in high-temperature centrifugal fan is required to be used in high-temperature environments such as hot air circulation, drying equipment and a hot blast stove, although the high-temperature contact between the plug-in volute and the motor can be blocked by the existing plug-in centrifugal fan, the temperature of the driving side is improved and the service life of the fan is shortened because the driving mechanism is closer to the heat insulation layer and heat is transferred through air. Because the motor and the bearing of the fan can not operate in a high-temperature environment, the temperature of the motor and the bearing can be increased by high-temperature gas in the system, and the coil and the bearing are burnt. Therefore, it is necessary to improve the heat radiation effect of the plug-in centrifugal fan.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a long service life's that the radiating effect is good special fan is provided.
In order to solve the technical problem, the technical scheme of the utility model is that: a special fan with long service life comprises a rack, wherein two bearing blocks are arranged on the rack, a main shaft is rotatably arranged on each bearing block, an impeller is fixed at one end of the main shaft, and the other end of the main shaft is in transmission connection with a motor; a heat insulation cover is arranged on the rear side of the impeller, and a heat dissipation impeller is fixed on the main shaft between the heat insulation cover and the bearing seat; the frame is also fixedly provided with an aggregation shell, the aggregation shell is positioned between the heat dissipation impeller and the bearing seat, and the heat dissipation impeller extends into the aggregation shell; the radiating pipe is internally provided with a radiating air flow channel; the radiating pipe is communicated with the inner cavity of the gathering shell after being sequentially contacted with the two bearing seats.
As an optimized technical scheme, the bearing seats are also provided with clamping grooves with arc-shaped longitudinal sections, and each radiating pipe is clamped in the two clamping grooves on the bearing seats
As a preferred technical scheme, a bearing mounting hole is formed in the bearing seat, baffle holes are respectively formed in two ends of the bearing mounting hole, and the outer diameter of each baffle hole is larger than the inner diameter of the bearing mounting hole; the outer edge of the baffle plate is fixed on the inner wall of the baffle plate hole and is in sealing connection with the inner wall of the baffle plate hole; an air inlet channel is arranged between the inner edge of the baffle and the main shaft, and an intermediate air channel is formed between the baffle and the bearing; the bearing seat is provided with an air outlet channel communicated with the intermediate air channel and the inner cavity of the heat radiating pipe; and one end of the radiating pipe, which is far away from the radiating impeller, is sealed.
As the preferred technical scheme, the radiating pipe is a copper pipe or an aluminum pipe.
As a preferable technical scheme, a plurality of the radiating pipes are uniformly arranged on the bearing seat at intervals.
As a preferable technical scheme, an annular rib is arranged on the side surface of the heat shield facing the heat dissipation impeller, and the heat dissipation impeller extends into the inner side of the baffle.
As a preferred technical scheme, the flange is trumpet-shaped, and the small end of the flange is connected with the heat insulation cover.
As a preferred technical scheme, one end of the radiating pipe, which is close to the radiating impeller, is in a horn shape.
By adopting the technical scheme, the special fan with long service life is forced to form rapid airflow at the bearing seat through the mutual matching of the radiating pipe and the radiating impeller, so that the main shaft and the bearing seat can be better radiated, and the service life of the fan is greatly prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a bearing seat in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a middle heat shield according to an embodiment of the present invention.
Detailed Description
As shown in figure 1, the special fan with long service life comprises a frame 1, wherein two bearing blocks 5 are arranged on the frame 1, a main shaft 3 is rotatably arranged on the bearing blocks 5, an impeller 4 is fixed at one end of the main shaft 3, and the other end of the main shaft 3 is in transmission connection with a motor 2. The rear side of the impeller 4 is provided with a heat shield 8,
a heat radiation impeller 13 is fixed on the main shaft 3 between the heat shield 8 and the bearing seat 5. The frame 1 is also fixed with a gathering shell 7, the gathering shell 7 is positioned between the heat dissipation impeller 13 and the bearing seat 5, and the heat dissipation impeller 13 extends into the gathering shell 7. The radiating pipe is characterized by further comprising a plurality of radiating pipes 6, wherein the radiating pipes 6 are communicated with the inner cavity of the gathering shell 7 after being sequentially contacted with the two bearing seats 5, and radiating air flow channels are formed in the radiating pipes 6.
When the heat radiation impeller 13 rotates with the main shaft 3, air flows are forcibly formed on the opposite sides of the heat radiation impeller 13, and the air flows from the bearing housing 5 side to the heat shield 8 side. The contact surface between the radiating pipe 6 and the bearing seat 5 is as large as possible, so that the heat exchange area is increased, and the radiating effect is improved.
In order to facilitate the installation, replacement and the like of the radiating pipe 6, clamping grooves with arc-shaped longitudinal sections are further formed in the bearing seats 5, and the radiating pipe 6 is clamped in the clamping grooves in the two bearing seats 5 simultaneously.
As shown in fig. 2, a bearing mounting hole is formed in the bearing seat 5, baffle holes are respectively formed at two ends of the bearing mounting hole, and the outer diameter of each baffle hole is larger than the inner diameter of each bearing mounting hole; the baffle plate structure also comprises an annular baffle plate 11, wherein the outer edge of the baffle plate 11 is fixed on the inner wall of the baffle plate hole and is in sealing connection; an air inlet channel 12 is arranged between the inner edge of the baffle 11 and the main shaft 3, and an intermediate air channel 9 is formed between the baffle 11 and the bearing; the bearing seat 5 is provided with an air outlet channel 10 for communicating the middle air channel 9 with the inner cavity of the radiating pipe 6; the end of the radiating pipe 6 remote from the radiating impeller 7 is closed.
One end of the radiating pipe 6 is sealed, the air flow flowing through the two end faces of the bearing seat 5 is large, the contact surface of the air flow and the bearing seat is increased, and the effective heat exchange area is increased.
Preferably, the heat dissipation tube 6 is made of copper or aluminum tube with high heat conduction efficiency. A plurality of radiating pipes 6 are uniformly spaced on the bearing housing 5.
The side of the heat shield 8 facing the heat dissipation impeller 13 is provided with an annular flange 12, and the heat dissipation impeller 13 extends into the inner side of the baffle 12. Preferably, the rib 12 is flared and its small end is connected to the heat shield 8.
In order to improve the air flow guiding effect, one end of the heat dissipation pipe 6 adjacent to the heat dissipation impeller 13 is trumpet-shaped.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A special fan with long service life comprises a rack, wherein two bearing blocks are arranged on the rack, a main shaft is rotatably arranged on each bearing block, an impeller is fixed at one end of the main shaft, and the other end of the main shaft is in transmission connection with a motor; the rear side of impeller is equipped with separates heat exchanger, its characterized in that: a heat dissipation impeller is fixed on the main shaft between the heat shield and the bearing seat; the frame is also fixedly provided with an aggregation shell, the aggregation shell is positioned between the heat dissipation impeller and the bearing seat, and the heat dissipation impeller extends into the aggregation shell; the radiating pipe is internally provided with a radiating air flow channel; the radiating pipe is communicated with the inner cavity of the gathering shell after being sequentially contacted with the two bearing seats.
2. A special fan with a long service life according to claim 1, characterized in that: the radiating pipe is characterized in that the bearing seats are also provided with clamping grooves with arc-shaped longitudinal sections, and each radiating pipe is clamped in the clamping grooves on the two bearing seats.
3. A special fan with a long service life according to claim 1, characterized in that: a bearing mounting hole is formed in the bearing seat, baffle holes are formed in two ends of the bearing mounting hole respectively, and the outer diameter of each baffle hole is larger than the inner diameter of the bearing mounting hole; the outer edge of the baffle plate is fixed on the inner wall of the baffle plate hole and is in sealing connection with the inner wall of the baffle plate hole; an air inlet channel is arranged between the inner edge of the baffle and the main shaft, and an intermediate air channel is formed between the baffle and the bearing; the bearing seat is provided with an air outlet channel communicated with the intermediate air channel and the inner cavity of the heat radiating pipe; and one end of the radiating pipe, which is far away from the radiating impeller, is sealed.
4. A special fan with a long service life according to any one of claims 1 to 3, characterised in that: the radiating pipe is a copper pipe or an aluminum pipe.
5. A special fan with a long service life according to claim 1, characterized in that: and a plurality of radiating pipes are uniformly arranged on the bearing seat at intervals.
6. A special fan with long service life according to claim 3, characterized in that: the side face of the heat insulation cover facing the heat dissipation impeller is provided with an annular flange, and the heat dissipation impeller extends into the inner side of the baffle.
7. A special fan with long service life according to claim 6, characterized in that: the flange is trumpet-shaped, and the small end of the flange is connected with the heat insulation cover.
8. A special fan with a long service life according to claim 1, characterized in that: the cooling tube is close to the one end of heat dissipation impeller is loudspeaker form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020557605.1U CN212838432U (en) | 2020-04-15 | 2020-04-15 | Long service life's special type fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020557605.1U CN212838432U (en) | 2020-04-15 | 2020-04-15 | Long service life's special type fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212838432U true CN212838432U (en) | 2021-03-30 |
Family
ID=75151582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020557605.1U Expired - Fee Related CN212838432U (en) | 2020-04-15 | 2020-04-15 | Long service life's special type fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212838432U (en) |
-
2020
- 2020-04-15 CN CN202020557605.1U patent/CN212838432U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210330 |