CN214480079U - Special motor for hot air circulating fan - Google Patents
Special motor for hot air circulating fan Download PDFInfo
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- CN214480079U CN214480079U CN202120868241.3U CN202120868241U CN214480079U CN 214480079 U CN214480079 U CN 214480079U CN 202120868241 U CN202120868241 U CN 202120868241U CN 214480079 U CN214480079 U CN 214480079U
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- bearing
- shaft section
- steel shaft
- motor
- carbon steel
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Abstract
The utility model discloses a special motor of heated air circulation fan belongs to heated air circulation machine field. The special motor for the hot air circulating fan comprises a frame, a composite rotating shaft, a graphite sleeve and an oil duct, wherein the composite rotating shaft comprises a carbon steel shaft section and a stainless steel shaft section, the carbon steel shaft section is located in the frame, the stainless steel shaft section extends out of the frame, a first bearing is arranged on the left side of the carbon steel shaft section, the oil duct is arranged beside the first bearing, a lubricant can be injected into the first bearing through the oil duct, the graphite sleeve is arranged on the left side of the first bearing, the composite rotating shaft penetrates through the graphite sleeve, the graphite sleeve can isolate heat, and the service life of a motor shaft and the service life of the bearing can be prolonged when the performance of the motor meets the requirement.
Description
Technical Field
The utility model belongs to heated air circulation machine field, more specifically say, relate to heated air circulation fan special motor.
Background
The special motor for the heated air circulation fan works in the occasions with the temperature as high as 800 ︒ C, and has high temperature resistance requirements on a motor bearing and a motor rotating shaft.
In the prior art, a special motor front end cover inner cavity is ventilated to cool a bearing, and a special high-temperature resistant stainless steel is used for manufacturing a motor shaft.
Because the working environment of the motor is higher, the front bearing of the motor is damaged by dry grinding due to the drying of grease. The whole stainless steel is used for manufacturing the motor shaft, so that the no-load current of the motor is multiplied, and the use performance of the motor cannot be achieved.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a special motor of hot-blast circulating fan, it can realize when the performance of motor reaches the requirement, has prolonged the life of motor shaft and bearing.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
The special motor for the heated air circulation fan comprises a frame 1, a composite rotating shaft 3, a graphite sleeve 4 and an oil duct 6.
The composite spindle 3 comprises a carbon steel shaft section 301 and a stainless steel shaft section 302. Stainless steel has better corrosion resistance than carbon steel, but carbon steel has a relatively low cost. The composite shaft 3 combines the advantages of both, balancing the corrosivity and the cost.
A carbon steel shaft section 301 is located within the housing 1 and a stainless steel shaft section 302 extends out of the housing 1. The stainless steel may resist corrosion from the environment outside the frame 1.
The carbon steel shaft section 301 has a first bearing 5 on the left side. The first bearing 5 supports the composite rotating shaft 3 to rotate.
Next to the first bearing 5 there is an oil channel 6, through which channel 6 lubricant can be injected into the first bearing 5. When lubricant is injected into the first bearing 5, the frame 1 does not need to be opened, so that the risk of foreign matters entering the frame 1 is reduced, and the first bearing 5 is convenient to maintain.
The graphite sleeve 4 is arranged on the left side of the first bearing 5, and the composite rotating shaft 3 penetrates through the graphite sleeve 4.
The graphite sleeve 4 can insulate heat. And the damage of excessive heat to the bearing is blocked.
Further, the lubricant is grease. The lubricating grease has long service life and can avoid frequent addition of the lubricating grease.
Further, the ventilation device 2 is arranged on the upper side of the first bearing 5.
Air may enter the ventilation device 2, cooling the first bearing 5. After the air enters the ventilating device 2, the air is not in direct contact with the first bearing 5, so that the air is prevented from flowing to dry lubricating grease, and the bearing is prevented from being damaged by dry grinding.
Further, a stator 7, a rotor 8 and a second bearing 9 are arranged in the frame 1.
The stator 7 is fixed in the frame 1.
The rotor 8 is fixed on the carbon steel shaft section 301, and the stator 7 corresponds to the rotor 8.
The second bearing 9 is located to the right of the carbon steel shaft segment 301, with the carbon steel shaft segment 301 passing through the second bearing 9.
Further, a heat dissipation reinforcing rib 10 is arranged on the outer side of the frame 1, and the heat dissipation reinforcing rib 10 covers the frame 1 where the stator 7 is located. The heat dissipation ribs 10 can increase the heat dissipation effect of the rack 1.
Furthermore, a protective cover 11 is arranged at the right end of the machine frame 1, and the protective cover 11 is fixedly connected with the machine frame 1.
Further, the machine frame 1 adopts insulating bolts. The insulating bolt can increase the insulation of the frame 1.
Further, the carbon steel shaft section 301 and the stainless steel shaft section 302 are welded together.
Further, the first bearing 5 and the second bearing 9 adopt deep groove ball bearings.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) this scheme installs a high temperature resistant graphite cover additional in front of the bearing, blocks the injury of too much heat to the bearing.
(2) This scheme is through dedicated oil duct to bearing filling high temperature lubricating grease, prolongs the life of bearing.
(3) The motor shaft extension part is made of high-temperature-resistant stainless steel materials, the interior of the motor is made of carbon steel, and the two materials are welded together by special welding rods to form a motor shaft, so that the performance of the motor meets the requirement. The service life of the motor shaft is prolonged.
Drawings
Fig. 1 is a schematic plan half-sectional structural view of a first embodiment of the present invention;
fig. 2 is a schematic plan half-sectional structural view of a first embodiment of the present invention;
fig. 3 is a schematic plan half-sectional structural view of a composite rotating shaft according to a first embodiment of the present invention;
fig. 4 is a schematic plan sectional structural view of a first bearing and an oil passage according to a first embodiment of the present invention;
fig. 5 is a schematic view of a planar half-section structure according to a first embodiment of the present invention.
The reference numbers in the figures illustrate:
the device comprises a frame 1, a ventilation device 2, a composite rotating shaft 3, a graphite sleeve 4, a first bearing 5, an oil duct 6, a stator 7, a rotor 8, a second bearing 9, a heat dissipation reinforcing rib 10, a protective cover 11, a carbon steel shaft section 301 and a stainless steel shaft section 302.
Detailed Description
The first embodiment is as follows: referring to fig. 1-5, the motor for hot air circulation fan includes a frame 1, a composite shaft 3, a graphite sleeve 4 and an oil passage 6.
The composite spindle 3 comprises a carbon steel shaft section 301 and a stainless steel shaft section 302. Stainless steel has better corrosion resistance than carbon steel, but carbon steel has a relatively low cost. The composite shaft 3 combines the advantages of both, balancing the corrosivity and the cost.
A carbon steel shaft section 301 is located within the housing 1 and a stainless steel shaft section 302 extends out of the housing 1. The stainless steel may resist corrosion from the environment outside the frame 1.
The carbon steel shaft section 301 has a first bearing 5 on the left side. The first bearing 5 supports the composite rotating shaft 3 to rotate.
Next to the first bearing 5 there is an oil channel 6, through which channel 6 lubricant can be injected into the first bearing 5. When lubricant is injected into the first bearing 5, the frame 1 does not need to be opened, so that the risk of foreign matters entering the frame 1 is reduced, and the first bearing 5 is convenient to maintain.
The graphite sleeve 4 is arranged on the left side of the first bearing 5, and the composite rotating shaft 3 penetrates through the graphite sleeve 4.
The graphite sleeve 4 can insulate heat. And the damage of excessive heat to the bearing is blocked.
Further, the lubricant is grease. The lubricating grease has long service life and can avoid frequent addition of the lubricating grease.
Further, the ventilation device 2 is arranged on the upper side of the first bearing 5.
Air may enter the ventilation device 2, cooling the first bearing 5. After the air enters the ventilating device 2, the air is not in direct contact with the first bearing 5, so that the air is prevented from flowing to dry lubricating grease, and the bearing is prevented from being damaged by dry grinding.
Further, a stator 7, a rotor 8 and a second bearing 9 are arranged in the frame 1.
The stator 7 is fixed in the frame 1.
The rotor 8 is fixed on the carbon steel shaft section 301, and the stator 7 corresponds to the rotor 8.
The second bearing 9 is located to the right of the carbon steel shaft segment 301, with the carbon steel shaft segment 301 passing through the second bearing 9.
Further, a heat dissipation reinforcing rib 10 is arranged on the outer side of the frame 1, and the heat dissipation reinforcing rib 10 covers the frame 1 where the stator 7 is located. The heat dissipation ribs 10 can increase the heat dissipation effect of the rack 1.
Furthermore, a protective cover 11 is arranged at the right end of the machine frame 1, and the protective cover 11 is fixedly connected with the machine frame 1.
Further, the machine frame 1 adopts insulating bolts. The insulating bolt can increase the insulation of the frame 1.
Further, the carbon steel shaft section 301 and the stainless steel shaft section 302 are welded together.
Further, the first bearing 5 and the second bearing 9 adopt deep groove ball bearings.
Claims (9)
1. The special motor for the heated air circulation fan is characterized in that: comprises a frame (1), a composite rotating shaft (3), a graphite sleeve (4) and an oil duct (6);
the composite rotating shaft (3) comprises a carbon steel shaft section (301) and a stainless steel shaft section (302);
the carbon steel shaft section (301) is positioned in the rack (1), and the stainless steel shaft section (302) extends out of the rack (1);
a first bearing (5) is arranged on the left side of the carbon steel shaft section (301);
an oil duct (6) is arranged beside the first bearing (5), and lubricant can be injected into the first bearing (5) through the oil duct (6);
a graphite sleeve (4) is arranged on the left side of the first bearing (5), and the composite rotating shaft (3) penetrates through the graphite sleeve (4);
the graphite sleeve (4) can insulate heat.
2. The special motor for the heated air circulation fan according to claim 1, wherein: the lubricant is grease.
3. The special motor for the heated air circulation fan according to claim 1, wherein: the upper side of the first bearing (5) is provided with a ventilation device (2);
air may enter the ventilation device (2) cooling the first bearing (5).
4. The special motor for the heated air circulation fan according to claim 1, wherein: a stator (7), a rotor (8) and a second bearing (9) are also arranged in the frame (1);
the stator (7) is fixed in the frame (1);
the rotor (8) is fixed on the carbon steel shaft section (301), and the stator (7) corresponds to the rotor (8);
the second bearing (9) is positioned at the right side of the carbon steel shaft section (301), and the carbon steel shaft section (301) penetrates through the second bearing (9).
5. The motor special for the heated air circulation fan according to claim 4, wherein: and the outer side of the frame (1) is provided with a heat dissipation reinforcing rib (10), and the heat dissipation reinforcing rib (10) covers the frame (1) where the stator (7) is positioned.
6. The motor special for the heated air circulation fan according to claim 4, wherein: a protective cover (11) is arranged at the right end of the rack (1), and the protective cover (11) is fixedly connected with the rack (1).
7. The special motor for the heated air circulation fan according to claim 1, wherein: the machine frame (1) adopts insulating bolts.
8. The special motor for the heated air circulation fan according to claim 1, wherein: the carbon steel shaft section (301) and the stainless steel shaft section (302) are welded.
9. The motor special for the heated air circulation fan according to claim 4, wherein: the first bearing (5) and the second bearing (9) adopt deep groove ball bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120868241.3U CN214480079U (en) | 2021-04-25 | 2021-04-25 | Special motor for hot air circulating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120868241.3U CN214480079U (en) | 2021-04-25 | 2021-04-25 | Special motor for hot air circulating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214480079U true CN214480079U (en) | 2021-10-22 |
Family
ID=78180558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120868241.3U Active CN214480079U (en) | 2021-04-25 | 2021-04-25 | Special motor for hot air circulating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214480079U (en) |
-
2021
- 2021-04-25 CN CN202120868241.3U patent/CN214480079U/en active Active
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