CN111130266B - Air cooling structure of outer rotor electric roller - Google Patents
Air cooling structure of outer rotor electric roller Download PDFInfo
- Publication number
- CN111130266B CN111130266B CN202010248041.8A CN202010248041A CN111130266B CN 111130266 B CN111130266 B CN 111130266B CN 202010248041 A CN202010248041 A CN 202010248041A CN 111130266 B CN111130266 B CN 111130266B
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- air
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses an air cooling structure of an outer rotor electric roller, which comprises: the stator assembly comprises a stator sleeve (1), an axial rib plate (4), an air guide plate structure, a bearing seat (3), a main shaft (9) and a stator coil iron core assembly (12), wherein the air guide plate structure is respectively connected with the axial rib plate (4) and the main shaft (9), the axial rib plate (4) is respectively connected with the bearing seat (3), the stator sleeve (1) and the main shaft (9), an air inlet and outlet channel is distributed on the fixing seat (27), and an air inlet and outlet channel is distributed on the end cover assembly, wherein an air channel is formed between the stator sleeve (1), the air guide plate structure and the axial rib plate (4) outside a shaft, a fan at one end of the main shaft (9) sends cooling air to the air channel through the fixing seat (27) and the end cover assembly to cool a stator iron core, and then the cooling air flow entering the stator is improved through the air channel outside the shaft, the radiating effect is enhanced, and therefore the service life of the electric roller is effectively prolonged.
Description
Technical Field
The invention relates to the technical field of electric transmission systems, in particular to an air cooling structure of an outer rotor electric roller.
Background
The outer rotor electric roller has the advantages of simple structure, reliable operation, less loss, high efficiency, direct drive control and the like, is particularly suitable for application occasions with low speed and large torque, and is widely applied to industries such as petroleum, mining, metallurgy and steel rolling. When the outer rotor electric roller works, a coil arranged on the stator of the outer rotor electric roller can generate a large amount of induction heat, the motor is easy to age, the service life of the outer rotor electric roller is influenced, and in order to improve the heat dissipation capacity of the outer rotor electric roller, a reasonable cooling system is very necessary for controlling the temperature rise of the outer rotor electric roller, so that equipment needs to be cooled. In the prior art, when an external rotor electric roller is cooled, a water cooling mode is mostly adopted, and a small part of the external rotor electric roller is also cooled by air.
In chinese patent CN101944813A, an outer rotor direct drive type permanent magnet synchronous motor for a belt conveyor is disclosed, which adopts an air cooling/water cooling structure as a cooling structure of an outer rotor electric drum. The outer rotor electric roller adopts a rotating shaft with a front shaft hole and a rear shaft hole, the rotating shaft is fixed on a bracket, and an air inlet or water hole and an air exhaust or water hole are arranged in the rotating shaft. Namely, the air is fed into the central hole in the rotating shaft for cooling, and then the air is discharged from the central hole at the other end in the rotating shaft.
Chinese patent CN106451915A discloses an outer rotor permanent magnet motor stator, which adopts an air cooling structure as a cooling structure of an outer rotor electric drum. The outer rotor permanent magnet motor comprises a hollow shaft, a stator support arranged on the hollow shaft, and a stator core and a stator coil which are arranged on the stator support, wherein the axial middle of the hollow shaft is closed, and a hollow shaft radial air inlet and a hollow shaft radial air outlet are formed in the hollow shaft in the radial direction. Air is supplied from the inside of the hollow shaft, and air is discharged from the other end of the inside of the hollow shaft.
When above-mentioned cooling structure cylinder design is water-cooling structure, need join in marriage water cooling equipment in addition, the field installation occupies a large amount of spaces, water cooling equipment and coupling all need spend manpower and material resources to go regularly to maintain, equipment manufacturing cost is also higher itself, simultaneously the air-cooled technique cavity axle hole air inlet leads to the wind flow for a short time less, and the axle hole is far away with the motor stator part distance that generates heat, heat transfer is slow, be difficult to in time the heat dissipation, the wind resistance that flows in the stator from the axial radial hole is great in addition, need highly-compressed air, the installation site often receives the condition restriction.
Disclosure of Invention
The invention aims to solve the problems and provides the air cooling structure of the outer rotor electric roller, which has the advantages of large air flow, good heat dissipation effect and small required air pressure.
The technical scheme provided comprises the following steps:
the air cooling structure of the outer rotor electric roller comprises: the stator assembly comprises a stator sleeve 1, axial rib plates 4, an air guide plate structure, a main shaft 9 and a bearing seat 3, wherein the stator sleeve 1 is connected with the axial rib plates 4, the axial rib plates 4 are connected with the air guide plate structure, the air guide plate structure is connected with the main shaft 9, the main shaft 9 is connected with the bearing seat 3, the bearing seats 3 are distributed at two ends of the stator sleeve 1, the air guide plate structure is located between the stator sleeve 1 and the main shaft 9, the air guide plate structure is respectively connected with two adjacent axial rib plates 4, the air guide plate structure and the stator sleeve 1 form a ventilation channel outside the main shaft 9, and the inside of the stator 27 is communicated with the ventilation channel.
In the air cooling structure of the outer rotor electric roller, the inner ring of the stator sleeve 1 is distributed with the heat dissipation rib plates 2, and the heat dissipation rib plates 2 are uniformly distributed along the circumferential direction of the inner ring of the stator sleeve 1.
In the air cooling structure of the outer rotor electric roller, the fixing seat 27 comprises a middle shaft sleeve 26, axial support rib plates 22 and a fixed outer ring 24, the middle shaft sleeve 26 is fixedly connected with the main shaft 9, the axial support rib plates 22 are respectively and fixedly connected with the fixed outer ring 24 and the middle shaft sleeve 26 and are uniformly distributed along the circumferential direction of the middle shaft sleeve 26, and air duct openings 23 are formed among the axial support rib plates 22, the middle shaft sleeve 26 and the fixed outer ring 24.
In the air cooling structure of the outer rotor electric roller, the stator assembly comprises a bearing seat 3, the outer ring of the bearing seat 3 is in a step shape, the inner ring of the bearing seat is provided with a chamfer, and the chamfer angle is 5-45 degrees.
In the air cooling structure of the outer rotor electric roller, the end cover assembly comprises an end cover 15, an oil cover assembly, a bearing 17 and a sealing device, two ends of the stator sleeve 1 are welded with an outer ring of the bearing seat 3, an inner ring of the bearing seat 3 is welded with the axial rib plate 4, and a plurality of air inlets and air outlets are formed among the inner ring of the bearing seat 3, the axial rib plate 4 and the shaft sleeve 7.
In the air cooling structure of the outer rotor electric roller, the axial rib plates 4 are fixedly connected with the main shaft 9 through the shaft sleeve 7, the axial rib plates 4 are welded with the shaft sleeve 7 and are uniformly distributed along the circumferential direction of the outer ring of the shaft sleeve 7, and the shaft sleeve 7 is fixed on the main shaft 9 in an interference fit or key groove connection mode.
In the air cooling structure of the outer rotor electric roller, the axial rib plate 4 is directly welded with the main shaft 9.
In the air cooling structure of the outer rotor electric roller, the air deflector structure comprises a plurality of first air deflectors 5, the first air deflectors 5 are respectively positioned at the front end and the rear end of a main shaft 9, the first air deflectors 5 are fan-shaped, the plurality of first air deflectors 5 are annularly arranged on the main shaft 9, the front ends of the first air deflectors 5 are connected with the main shaft 9 and are respectively welded on two adjacent axial rib plates 4, and the first air deflectors 5 are uniformly distributed along the circumferential direction of the outer ring of the main shaft 9 and are opposite to the air inlet and the air outlet one by one.
In the air cooling structure of the outer rotor electric roller, the air guide plate structure further comprises a second air guide plate 6, the cross section of the second air guide plate 6 is in an arc shape, the second air guide plate 6 is respectively welded with the rear ends of the first air guide plates 5 at two ends of the main shaft 9, two side ends of the second air guide plate 6 are respectively welded on two adjacent axial rib plates 4, and the second air guide plates 6 are uniformly distributed along the circumferential direction of the outer ring of the main shaft 9 and are opposite to the first air guide plates 5 one by one.
The invention has the beneficial effects that:
1. the air cooling structure is adopted, so that corresponding water cooling equipment is directly reduced, the maintenance of a water cooling joint and equipment in the later period is omitted, the manufacturing cost is saved, and energy is saved;
2. the large-aperture bearing 17 is adopted, the aperture of the bearing is directly used as an air inlet, the air inlet space is greatly improved, and the flow of cooling air entering the stator is improved;
3. adopt deflector structure to make the intake flow more steady, more effectual and stator sleeve 1 inner circle and heat dissipation gusset 2 contact carry out the heat transfer, increase substantially the radiating effect to extension motorized pulley's life reduces the demand wind pressure of air inlet simultaneously, does not receive the high-pressure wind restriction, use ordinary fan can.
Drawings
FIG. 1 is a sectional view of an air-cooled structure according to the present invention
FIG. 2 is a left side view of the air-cooled structure of the present invention
FIG. 3 is a cross-sectional view of an axial rib plate according to the present invention
FIG. 4 is a schematic structural view of a circular truncated cone formed by the first air deflectors of the present invention
FIG. 5 is a front elevational view of the end cap assembly of the present invention
FIG. 6 is a cross-sectional view taken along line A-A of the end cap assembly of FIG. 5
FIG. 7 is a schematic structural view of an end cap according to the present invention
FIG. 8 is a schematic structural view of a fixing base of the present invention
FIG. 9 is a schematic view of a cylindrical structure formed by second air deflectors according to the present invention
The stator comprises a stator sleeve 1, a heat dissipation rib plate 2, a bearing seat 3, an axial rib plate 4, a first air deflector 5, a second air deflector 6, an axle sleeve 7, a flat key 8, a main shaft 9, a lock nut 10, a threading pipe 11, a stator coil iron core assembly 12, an outer oil cover 13, a first sealing ring 14, an end cover 15, an end cover mounting hole 15.1, a second sealing ring 16, a bearing 17, an inner oil cover 18, a screw plug 19, a rotary shaft lip-shaped sealing ring 20, an oil nozzle 21, a through hole 21.1 for the oil nozzle, an axial support rib plate 22, an air duct opening 23, a fixed outer ring 24, a hanging hole 25, a middle axle sleeve 26, a fixed seat 27, an air direction 28, a fixed mounting hole 29, a contact surface a of the axial rib plate and the bearing seat, a contact surface b of the axial rib plate and the.
Detailed Description
The present description is specifically described below with reference to the accompanying drawings:
as shown in fig. 1-8, the present invention includes a fixing base 27, an end cap assembly, and a stator assembly. The fixing seat 27 comprises a middle shaft sleeve 26, an axial supporting rib plate 22 and a fixed outer ring 24, the end cover assembly comprises an end cover 15, an oil cover assembly, a bearing 17 and a sealing device, and the stator assembly comprises a stator sleeve 1, an axial rib plate 4, an air guide plate structure, a bearing seat 3, a main shaft 9 and a stator coil core assembly 12. Wherein the fixed seat 27 is fixed together through the key connection or the shrink fit of the middle shaft sleeve 26 and the main shaft 9, and the stator assembly and the end cover assembly are connected together through the welding of the stator sleeve 1 and the outer ring of the bearing seat 3.
As shown in fig. 8, in the preferred embodiment of the air-cooling structure of the external rotor electric drum of the present invention, the fixing base 27 may be integrally cast or wire-cut, or welded from each constituent structure.
In the preferred embodiment of the air cooling structure of the external rotor electric roller of the present invention, the fixing seat 27 fixes the roller main shaft 9 through the middle shaft sleeve 26, preferably 6 axial support rib plates 22 are respectively fixed with the fixed outer ring 24 and the middle shaft sleeve 26, and the 6 axial support rib plates 22 are uniformly distributed along the circumferential direction of the middle shaft sleeve 26, and 6 equally-divided air duct openings 23 are formed between the middle shaft sleeve 26, the axial support rib plates 22 and the fixed outer ring 24.
In the preferred embodiment of the air cooling structure of the external rotor electric roller of the present invention, the front and rear planes of the fixed outer ring 24 are provided with screw holes for mounting the fan guard and the connection cover, and the left and right protruding ends are respectively provided with fixing mounting holes 29 for fixing the fixing base 27.
In the preferred embodiment of the air cooling structure of the external rotor electric roller of the present invention, the fixed outer ring 24 is provided with hanging holes 25, which are located above the fixed outer ring 24 and used for installing a hoisting device to facilitate hoisting.
In the preferred embodiment of the air cooling structure of the outer rotor electric roller, the cooling air flow generated by the fan enters or is discharged from the air duct opening 23 on the fixed seat 27, so that the fixing effect of the original fixed seat 27 is ensured, meanwhile, the corresponding air duct opening 23 is added, the ventilation fluency is improved, the heat dissipation effect of the outer rotor electric roller is ensured, and the outer rotor electric roller is more suitable for fixing the outer rotor electric roller adopting the air cooling structure.
As shown in fig. 5 to 7, in the preferred embodiment of the air cooling structure of the external rotor electric drum of the present invention, the bearing 17 in the end cap assembly is a large diameter hole bearing 17, preferably a deep groove ball bearing 17 having an inner diameter greater than 400.
In the preferred embodiment of the air cooling structure of the outer rotor electric roller of the present invention, the end cover 15 is tightly fitted to the outer ring of the bearing 17 by pressing the bearing 17 directly into the end cover 15 by a shrink fit or by a bearing press-fitting machine.
In the preferred embodiment of the air cooling structure of the outer rotor electric roller of the invention, the oil cover assembly comprises an outer oil cover 13 and an inner oil cover 18, the outer oil cover 13 is fixed with one side of the end cover 15 through a fastener and is provided with a sealing device, a rotary shaft lip-shaped sealing ring 20 is installed in an inner hole of the outer oil cover 13 to ensure the sealing performance of the outer oil cover, and a plurality of countersunk holes are arranged on the outer side of the outer oil cover 13 and are uniformly distributed along the circumferential direction of the outer side of the outer oil cover 13 to install an oil nozzle 21 and a screw plug 19; the inner oil cover 18 is arranged at the other side of the end cover 15 through a fastening piece and is provided with a sealing device, and oil grooves are uniformly distributed on the circumference of the inner oil cover 18 for injecting oil.
In a preferred embodiment of the air cooling structure of the outer rotor electric drum of the present invention, the sealing device includes a first sealing ring 14 and a second sealing ring 16, the first sealing ring 14 is used for ensuring the sealing performance between the outer oil cover 13 and the end cover 15, and the second sealing ring 16 is used for ensuring the sealing performance between the inner oil cover 18 and the end cover 15.
In the preferred embodiment of the air cooling structure of the outer rotor electric roller of the invention, the end cover 15 is in a stepped flange shape, the outer side of the end cover is uniformly provided with end cover mounting holes 15.1 along the circumferential direction for fixedly connecting with the outer rotor electric roller, and the inner side of the end cover is provided with through holes 21.1 for oil nozzles along the circumferential direction for communicating with an oil groove of the inner oil cover 18, so that a loop is formed between the oil nozzles 21 and the screw plugs 19.
In the preferred embodiment of the air cooling structure of the outer rotor electric roller, the outer ring of the bearing seat 3 is in a step shape, the inner hole of the bearing seat is provided with a chamfer angle, the chamfer angle is adjustable within 5-45 degrees and can be adjusted along with the length of the bearing seat 3 and the size of a channel, and the preferred chamfer angle is 35 degrees to play a role in air guiding.
In the preferred embodiment of the air cooling structure of the outer rotor electric roller, the bearing seat 3 is welded with the axial rib plate 4 at the contact surface a of the axial rib plate and the bearing seat, the axial rib plate 4 and the shaft sleeve 7 are respectively welded at the contact surface c of the axial rib plate and the shaft sleeve, the preferred number of the axial rib plates 4 is 6, the axial rib plates 4 are uniformly distributed along the circumferential direction of the shaft sleeve 7, and air inlets and air outlets which are equally distributed at 6 positions are formed among the shaft sleeve 7, the axial rib plate 4 and the bearing seat 3 and are in one-to-one correspondence with the air outlets 23 of the fixed seat 27.
In the preferred embodiment of the air cooling structure of the outer rotor electric roller, the axial rib plate 4 can be directly welded with the main shaft 9.
In the preferred embodiment of the air cooling structure of the outer rotor electric roller of the invention, the bearing 17, the end cover 15 and the oil cover assembly are integrated and directly installed on the bearing seat 3 of the outer rotor electric roller adopting the air cooling structure, and enough space is reserved for the air inlet and the air outlet inside the bearing seat 3.
As shown in fig. 1-4, in the preferred embodiment of the air cooling structure of the outer rotor electric roller of the present invention, a plurality of heat dissipation rib plates 2 are uniformly distributed on the circumference of the inner ring of the stator sleeve 1, the number of the heat dissipation rib plates can be increased or decreased according to the actual heat dissipation requirement, and the heat dissipation effect of the outer rotor electric roller is further improved by increasing the heat dissipation area.
In the preferred embodiment of the air cooling structure of the external rotor electric roller of the invention, the threading holes are distributed inside the main shaft 9, the stator coil iron core component 12 is fixed on the outer ring of the stator sleeve 1, and the coil thereof can be led into the threading holes at one side of the main shaft 9 through the threading pipe 11.
In a preferred embodiment of the air cooling structure of the outer rotor electric roller, as shown in fig. 3, the cross section of the axial rib plate 4 is polygonal in a streamline shape, the stator sleeve 1 is welded on the bearing seats 3 at two ends, meanwhile, the inner ring of the stator sleeve 1 and 6 axial rib plates 4 are respectively welded at the contact surface b of the axial rib plate and the stator sleeve, 6 axial rib plates 4 and the shaft sleeve 7 are respectively welded at the contact surface c of the axial rib plate and the shaft sleeve, and the stator sleeve 1 is supported by the bearing seats 3 and 6 axial rib plates 4.
In a preferred embodiment of the air cooling structure of the outer rotor electric roller of the present invention, as shown in fig. 4, the first air guiding plate 5 is fan-shaped, and preferably 6 first air guiding plates 5 form a circular truncated cone cylinder with a small front and a large rear, which are respectively arranged at the air inlet and the air outlet, and the front end of the first air guiding plate 5 is welded to the shaft sleeve 7 and respectively welded to two adjacent axial rib plates 4.
In a preferred embodiment of the air cooling structure of the outer rotor electric drum of the present invention, the front end of the first air deflector 5 may be directly welded to the main shaft 9.
In a preferred embodiment of the air cooling structure of the outer rotor electric drum of the present invention, as shown in fig. 1-2, the left view of the second air guiding plate 6 is a circular arc shape, as shown in fig. 9, the top view of the second air guiding plate 6 is a rectangular shape, preferably 6 second air guiding plates 6 form a cylindrical tube shape, the front and rear ends of the second air guiding plate 6 are respectively welded to the rear ends of the first air guiding plates 5 at both ends of the main shaft 9, and the other two side ends are respectively welded to two adjacent axial rib plates 4.
In the preferred embodiment of the air cooling structure of the external rotor electric drum of the present invention, an air duct is formed between the first air deflector 5, the second air deflector 6, the axial web and the stator sleeve 1, the left side of the preferred main shaft 9 is used as an air inlet, that is, the cooling air flow generated by the fan enters from the air duct port 23 of the fixed seat 27, the air flow is formed through the air inlet of the bearing seat 3 and the air duct between the first air deflector 5, the second air deflector 6, the axial web and the stator sleeve 1, and the air flow flows out from the air duct port 23 of the fixed seat 27 at the air outlet of the right bearing seat 3 of the main shaft 9, so as to cool the stator core.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that although the present specification describes the embodiments, the above-mentioned embodiments are exemplary and not intended to limit the scope of the present invention, and any changes, modifications, substitutions and alterations made by those skilled in the art without departing from the principle and spirit of the present invention shall be included in the scope of the present invention.
Claims (8)
1. An air cooling structure of an outer rotor electric roller is characterized by comprising: the stator comprises a fixed seat (27), a stator assembly and an end cover component, wherein the fixed seat (27) is connected with the stator assembly, the stator assembly is connected with the end cover component, the stator assembly comprises a stator sleeve (1), an axial rib plate (4), an air deflector structure, a main shaft (9) and a bearing seat (3), the stator sleeve (1) is connected with the axial rib plate (4), the axial rib plate (4) is connected with the air deflector structure, the air deflector structure is connected with the main shaft (9), the main shaft (9) is connected with the bearing seat (3), the bearing seat (3) is distributed at two ends of the stator sleeve (1), the air deflector structure is positioned between the stator sleeve (1) and the main shaft (9), the air deflector structure is respectively connected with two adjacent axial rib plates (4), and the air deflector structure and the stator sleeve (1) form an air duct outside the main shaft (9), the inside of the fixed seat (27) is communicated with the ventilation channel;
the stator assembly comprises a bearing seat (3), the outer ring of the bearing seat (3) is in a step shape, and the inner ring of the bearing seat is provided with a chamfer;
the end cover assembly comprises an end cover (15), an oil cover assembly, a bearing (17) and a sealing device, two ends of the stator sleeve (1) are welded with an outer ring of the bearing seat (3), an inner ring of the bearing seat (3) is welded with the axial rib plate (4), and a plurality of air inlets and air outlets are formed among the inner ring of the bearing seat (3), the axial rib plate (4) and the shaft sleeve (7).
2. The air cooling structure of the external rotor electric roller according to claim 1, wherein heat dissipation rib plates (2) are distributed on the inner ring of the stator sleeve (1), and the heat dissipation rib plates (2) are uniformly distributed along the circumferential direction of the inner ring of the stator sleeve (1).
3. The air cooling structure of the external rotor electric roller according to claim 1, wherein the fixing seat (27) comprises an intermediate shaft sleeve (26), an axial support rib plate (22) and a fixed outer ring (24), the intermediate shaft sleeve (26) is fixedly connected with the main shaft (9), the axial support rib plate (22) is respectively fixedly connected with the fixed outer ring (24) and the intermediate shaft sleeve (26) and is uniformly distributed along the circumferential direction of the intermediate shaft sleeve (26), and an air inlet/outlet port (23) is formed among the axial support rib plate (22), the intermediate shaft sleeve (26) and the fixed outer ring (24).
4. The air-cooling structure of an external rotor electric roller as claimed in claim 1, wherein the chamfer angle of the inner ring is 5 ° to 45 °.
5. The air cooling structure of the external rotor electric roller according to claim 1, wherein the axial rib plates (4) are fixedly connected with the main shaft (9) through a shaft sleeve (7), the axial rib plates (4) are welded with the shaft sleeve (7) and are uniformly distributed along the circumferential direction of the outer ring of the shaft sleeve (7), and the shaft sleeve (7) is fixed on the main shaft (9) in an interference fit or key groove connection mode.
6. The air cooling structure of the external rotor electric roller according to claim 1, wherein the axial rib plate (4) is directly welded to the main shaft (9).
7. The air cooling structure of the external rotor electric roller according to claim 1, wherein the air deflector structure comprises a plurality of first air deflectors (5), the first air deflectors (5) are respectively located at the front end and the rear end of the main shaft (9), the first air deflectors (5) are fan-shaped, the plurality of first air deflectors (5) are annularly arranged on the main shaft (9), the front ends of the first air deflectors (5) are connected with the main shaft (9) and respectively welded on two adjacent axial rib plates (4), and the first air deflectors (5) are circumferentially and uniformly distributed along the circumference of the outer ring of the main shaft (9) and are one-to-one opposite to the air inlet and outlet.
8. The air cooling structure of the external rotor electric roller according to claim 7, wherein the air deflector structure further comprises a second air deflector (6), the cross section of the second air deflector (6) is arc-shaped, the second air deflector (6) is welded to the rear end of the first air deflector (5) at the two ends of the main shaft (9), the two side ends of the second air deflector (6) are welded to two adjacent axial rib plates (4) respectively, and the second air deflector (6) is uniformly distributed along the circumferential direction of the outer ring of the main shaft (9) and is opposite to the first air deflector (5) one by one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248041.8A CN111130266B (en) | 2020-04-01 | 2020-04-01 | Air cooling structure of outer rotor electric roller |
| PCT/CN2020/095531 WO2021196405A1 (en) | 2020-04-01 | 2020-06-11 | Air cooling structure of outer rotor electric roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248041.8A CN111130266B (en) | 2020-04-01 | 2020-04-01 | Air cooling structure of outer rotor electric roller |
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| CN111130266A CN111130266A (en) | 2020-05-08 |
| CN111130266B true CN111130266B (en) | 2020-06-30 |
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| CN202010248041.8A Active CN111130266B (en) | 2020-04-01 | 2020-04-01 | Air cooling structure of outer rotor electric roller |
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| WO (1) | WO2021196405A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130266B (en) * | 2020-04-01 | 2020-06-30 | 江苏嘉轩智能工业科技股份有限公司 | Air cooling structure of outer rotor electric roller |
| CN111313580A (en) * | 2020-05-13 | 2020-06-19 | 江苏嘉轩智能工业科技股份有限公司 | Permanent-magnet direct-drive roller |
| CN111541317B (en) * | 2020-07-07 | 2021-02-26 | 江苏嘉轩智能工业科技股份有限公司 | Air-cooled permanent magnet roller |
| CN111835124A (en) * | 2020-07-29 | 2020-10-27 | 江苏嘉轩智能工业科技股份有限公司 | Permanent magnet electric roller with non-return device |
| CN112196909B (en) * | 2020-09-16 | 2021-08-27 | 广东力科泵业科技有限公司 | Air-cooled cylinder type coupler |
| CN113726043B (en) * | 2021-09-06 | 2022-04-01 | 合肥恒大江海泵业股份有限公司 | Submersible motor rotor |
| CN114194775B (en) * | 2021-12-20 | 2024-05-14 | 苏州九鲤智能科技有限公司 | Electric drum type narrow-band sorting machine |
| CN113965015B (en) * | 2021-12-23 | 2022-03-15 | 承德盛乾特种电机制造有限公司 | Air cooling structure of outer rotor permanent magnet motor |
| CN114421689B (en) * | 2021-12-31 | 2023-09-26 | 佳木斯电机股份有限公司 | Bearing temperature measurement, oil injection and drainage and armature water cooling integrated device and method |
| CN116987995B (en) * | 2023-09-27 | 2023-12-26 | 江苏嘉轩智能工业科技股份有限公司 | Corrosion prevention technology for water cooling channel of permanent magnet direct-drive roller |
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| JP5388636B2 (en) * | 2009-03-09 | 2014-01-15 | 本田技研工業株式会社 | Rotating electric machine |
| CN211629990U (en) * | 2020-04-01 | 2020-10-02 | 江苏嘉轩智能工业科技股份有限公司 | Fixing seat of air-cooled outer rotor electric roller |
| CN111130266B (en) * | 2020-04-01 | 2020-06-30 | 江苏嘉轩智能工业科技股份有限公司 | Air cooling structure of outer rotor electric roller |
-
2020
- 2020-04-01 CN CN202010248041.8A patent/CN111130266B/en active Active
- 2020-06-11 WO PCT/CN2020/095531 patent/WO2021196405A1/en active Application Filing
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| CN101110539A (en) * | 2006-07-19 | 2008-01-23 | 天蝎星精密工业（香港）有限公司 | Ventilated motor |
| CN201388088Y (en) * | 2009-03-23 | 2010-01-20 | 中船重工电机科技股份有限公司 | Large-diameter generator rotor structure |
| CN106972692A (en) * | 2017-04-05 | 2017-07-21 | 中山市朗宇模型有限公司 | A kind of transmission mechanism is built in the external rotor brushless reducing motor of stator |
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| CN111130266A (en) | 2020-05-08 |
| WO2021196405A1 (en) | 2021-10-07 |
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