CN211629991U - End cover assembly of air-cooled outer rotor electric roller - Google Patents
End cover assembly of air-cooled outer rotor electric roller Download PDFInfo
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- CN211629991U CN211629991U CN202020455812.6U CN202020455812U CN211629991U CN 211629991 U CN211629991 U CN 211629991U CN 202020455812 U CN202020455812 U CN 202020455812U CN 211629991 U CN211629991 U CN 211629991U
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Abstract
The utility model discloses an air-cooled external rotor electric drum's end cover subassembly, include: end cover (15), oil cover subassembly, bearing (17), bearing frame (3), sealing device, oil cover subassembly and end cover (15) and bearing (17) connect gradually, sealing device is located between end cover (15) and the oil cover subassembly, improves its sealing performance, bearing (17) and stator assembly structural connection the utility model discloses well bearing (17), end cover (15) and oil cover subassembly are constituteed integratively, then install on bearing frame (3), make things convenient for the installation and the dismantlement of bearing (17), circle cloth in bearing frame (3) have with the business turn over wind gap of business turn over wind channel one-to-one on the fixing base, need not punch on end cover (15), improve end cover (15) performance, make the wind channel effectively utilize simultaneously, further improve air-cooled external rotor electric cylinder's radiating effect.
Description
Technical Field
The utility model relates to an electric drive system technical field, more specifically say, relate to an air-cooled external rotor motorized pulley's end cover subassembly.
Background
The outer rotor electric roller has the advantages of simple mechanism, 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 a 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, 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 equipment needs to be cooled.
Chinese patent CN110635624A discloses an external rotor motor, in which a fan is disposed inside one end of a housing, an air outlet is disposed on a side wall of the housing corresponding to the fan, and an air inlet is disposed on the other end of the housing, so that when the housing rotates, the fan is driven to rotate, and air in the housing is exhausted from the air outlet.
In chinese patent CN101944813A, an outer rotor direct drive type permanent magnet synchronous motor for a belt conveyor is disclosed, which adopts an air duct/water channel 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. The air inlet cooling of the centre bore from the inside of pivot promptly, from the centre bore air-out of the inside other end of pivot again, do not need the trompil on the end cover in this patent, but because of its installation bearing, the bearing is adorned earlier and is installed the end cover after epaxial, and it is inconvenient to dismouting bearing afterwards, and its structure is complicated simultaneously, manufacturing process is complicated and the ventiduct can not effectively be utilized, leads to high in production cost, radiating effect poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the aforesaid provided, provide a simple to operate, with low costs, the good end cover subassembly of forced air cooling external rotor motorized pulley of radiating effect.
The technical scheme provided comprises the following steps:
the end cover component of the air-cooled outer rotor electric roller of the utility model comprises an end cover 15, an oil cover component, a bearing 17, a bearing seat 3 and a sealing device, the oil cover component is connected with an end cover 15, the end cover 15 is connected with the bearing 17, the bearing 17 is connected with the bearing seat 3, the sealing device is positioned between the end cover 15 and the oil cover component, the inner ring of the bearing seat 3 is directly used as an air inlet and an air outlet, the end cover 15 is respectively connected with two ends of a stator assembly structure, the stator assembly structure is distributed with an air duct positioned outside a shaft, and the two ends of the ventilation channel correspond to the air inlet and the air outlet, and cooling air flows through the air inlet of the end cover component at one end of the stator assembly structure, enters the off-axis ventilation channel of the stator assembly structure to cool the stator and is discharged through the air outlet of the end cover component at the other end of the stator assembly structure.
In the end cover assembly of the air-cooled external rotor electric roller of the present invention, the bearing 17 is a hole bearing.
In the end cover assembly of the air-cooled outer rotor electric roller, the end cover assembly comprises an inner oil cover 18 and an outer oil cover 13, the inner oil cover 18 and the outer oil cover 13 are both hollow or annular, the inner oil cover 18 and the outer oil cover 13 are respectively located on two sides of the end cover 15, and the end cover 15 is fixedly connected with a fastener.
Air-cooled external rotor electric cylinder's end cover subassembly in, rotation axis lip seal 20 is installed to the hole of outer oil cover 13, outer oil cover 13 is equipped with a plurality of counter bores along circumference.
In the end cover assembly of the air-cooled outer rotor electric roller, the inner oil cover 18 is provided with oil grooves along the circumferential direction and the uniform distribution.
In the end cover assembly of the air-cooled outer rotor electric roller, the sealing device comprises a first sealing ring 14 and a second sealing ring 16, the first sealing ring 14 is located between the outer oil cover 13 and the end cover 15, and the second sealing ring 16 is located between the inner oil cover 18 and the end cover 15.
Air-cooled external rotor electric roller's end cover subassembly in, end cover 15 is stairstepping flange shape, there is through-hole 23 for the glib talker along circumference evenly distributed on the end cover 15, through-hole 23 for the glib talker with the oil groove one-to-one.
In the end cover assembly of the air-cooled external rotor electric roller, the outer ring of the bearing seat 3 is in a step shape, the inner ring is provided with a chamfer, and the chamfer angle is 5-45 degrees.
Air-cooled external rotor electric roller's end cover subassembly in, 3 inner circles of bearing frame and the welding of axial gusset 4, axial gusset 4 and main shaft 9 welding, form a plurality of business turn over wind gaps between 3 inner circles of bearing frame, axial gusset 4 and the main shaft 9.
The utility model has the advantages that:
1. the bearing 17, the end cover 15, the outer oil cover 13 and the inner oil cover 18 are integrated and then are arranged on the bearing block 3, so that the bearing 17 can be conveniently mounted and dismounted;
2. the end cover 15 is in a stepped flange mounting mode, has simple structure, is easy to manufacture and reduces the production cost;
3. the inner ring of the bearing seat 3 is directly used as an air inlet and an air outlet, and holes do not need to be formed in the upper surface of the end cover 15, so that the strength of the end cover 15 is improved, the ventilation duct is effectively utilized, and the heat dissipation effect of the ventilation duct is improved.
Drawings
FIG. 1 is a sectional view of the air cooling structure of the present invention
FIG. 2 is a front view of the end cap assembly of the present invention
3 FIG. 3 3 3 is 3a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3A 3- 3A 3 of 3 the 3 end 3 cap 3 assembly 3 of 3 FIG. 3 2 3
FIG. 4 is a schematic structural view of the end cap of the present invention
Shown in the figure are: stator sleeve 1, heat dissipation rib plate 2, bearing seat 3, axial rib plate 4, first air deflector 5, second air deflector 6, shaft sleeve 7, flat key 8, main shaft 9, lock nut 10, threading pipe 11, stator coil iron core assembly 12, outer oil cover 13, first sealing ring 14, end cover 15, second sealing ring 16, bearing 17, inner oil cover 18, plug screw 19, rotating shaft lip-shaped sealing ring 20, oil nozzle 21, end cover mounting hole 22, through hole 23 for oil nozzle
Detailed Description
The present description is specifically described below with reference to the accompanying drawings:
as shown in fig. 1-4, the preferred embodiment of the end cap assembly of the air-cooled external rotor electric roller of the present invention comprises: the end cover assembly comprises an end cover 15, an oil cover assembly, a bearing 17, a bearing seat 3 and a sealing device, and the stator assembly comprises a stator sleeve 1, an axial rib plate 4, an air guide plate structure, a shaft sleeve 7, a main shaft 9 and a stator coil core assembly 12. The stator assembly structure and the end cover assembly are connected with the outer ring of the bearing seat 3 through the stator sleeve 1 in a welded mode.
As shown in fig. 2-4, in the preferred embodiment of the end cap assembly of the air-cooled external rotor electric roller of the present invention, the end cap 15 is tightly fitted to the outer ring of the bearing 17 by pressing the bearing 17 directly into the end cap 15 through a shrink fit or a bearing press-fitting machine.
In the preferred embodiment of the end cover assembly of the air-cooled external rotor electric roller of the utility model, 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 simultaneously, 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; 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.
The utility model discloses in the preferred embodiment of air-cooled external rotor electric drum's end cover subassembly, interior oil blanket 18 and outer oil blanket 13 are cavity or annular, with the back is connected to end cover 15, form sealed chamber between interior oil blanket 18 and the end cover 15 and between outer oil blanket 13 and the end cover 15.
The utility model discloses in the preferred embodiment of air-cooled external rotor electric roller's end cover subassembly, sealing device includes first sealing washer 14 and second sealing washer 16, and first sealing washer 14 is used for guaranteeing the leakproofness between outer oil cover 13 and the end cover 15, and second sealing washer 16 is used for guaranteeing the leakproofness between interior oil cover 18 and the end cover 15.
The utility model discloses in the preferred embodiment of air-cooled external rotor motorized pulley's end cover subassembly, as shown in FIG. 2, end cover 15 is the stairstepping flange shape, and its outside evenly is equipped with end cover mounting hole 22 along circumference for with external rotor motorized pulley fixed connection, the inboard is equipped with through-hole 23 for the glib talker along circumference, is used for being linked together with the oil groove of interior oil cap 18, thereby makes to form the return circuit between glib talker 21 and the plug screw 19.
The utility model discloses in the preferred embodiment of air-cooled external rotor motorized pulley's end cover subassembly, 3 outer lanes of bearing frame are the ladder shape, and its centre bore has the chamfer, and the chamfer angle is adjustable at 5-45, can be along with 3 length of bearing frame and the adjustment of passageway size, and its chamfer angle of preferred is 35, plays the effect of air-guide.
The utility model discloses in the preferred embodiment of air-cooled external rotor electric drum's end cover subassembly, bearing frame 3 through with axial gusset 4 welding, axial gusset 4 and axle sleeve 7 welding, the quantity of preferred axial gusset 4 be 6 and along 7 circumference evenly distributed of axle sleeve, form the business turn over wind gap of 6 equal divisions between axle sleeve 7, axial gusset 4 and the bearing frame 3.
The utility model discloses in the preferred embodiment of air-cooled external rotor motorized pulley's end cover subassembly, bearing 17, end cover 15 and oil cover subassembly are constituteed integratively, and direct mount leaves sufficient space for the inside business turn over wind gap of bearing frame 3 on the external rotor motorized pulley's that adopts the air-cooled structure bearing frame 3.
The utility model discloses in air-cooled external rotor electric roller's the preferred embodiment of end cover subassembly, 1 inner circle circumference evenly distributed of stator sleeve has a plurality of heat dissipation gusset 2, and its quantity can increase or reduce according to actual heat dissipation demand, further improves external rotor electric roller's radiating effect through increasing heat radiating area.
The utility model discloses in the preferred embodiment of air-cooled external rotor motorized pulley's end cover subassembly, the inside cloth of main shaft 9 has the through wires hole, and stator coil iron core subassembly 12 is fixed in 1 outer lane of stator sleeve, and 9 one side through wires holes of main shaft are introduced to its coil accessible through wires pipe 11.
The utility model discloses in the preferred embodiment of air-cooled external rotor electric drum's end cover subassembly, the cross-section of axial gusset 4 is the streamline, and 1 welding of stator sleeve is on both ends bearing frame 3, and 1 inner circle of stator sleeve and 6 axial gussets 4 welds simultaneously, and 6 axial gussets 4 weld with axle sleeve 7, support stator sleeve 1 through bearing frame 3 and 6 axial gussets 4.
The utility model discloses in air-cooled outer rotor motorized pulley's the preferred embodiment of end cover subassembly, 5 front ends of first aviation baffle and axle sleeve 7 welding, 5 both sides of first aviation baffle and the 9 central lines of main shaft of 9 one ends are 35, and 5 both sides of the first aviation baffle of the 9 other ends of main shaft are 145 with the 9 central lines of main shaft, weld respectively on two adjacent axial gusset 4.
The utility model discloses in air-cooled outer rotor motorized pulley's the preferred embodiment of end cover subassembly, the front and back end of second aviation baffle 6 welds with the rear end of the first aviation baffle 5 at main shaft 9 both ends respectively, and all the other two sides weld respectively on two adjacent axial gusset 4.
The utility model discloses in air-cooled external rotor motorized pulley's the preferred embodiment of end cover subassembly, first aviation baffle 5, second aviation baffle 6, form the ventiduct in the main shaft 9 outside of stator assembly structure between axial radials and stator sleeve 1, the left side of preferred main shaft 9 is as the air intake, the cooling air current that the fan produced promptly enters the air from bearing frame 3's air intake, then via first aviation baffle 5, second aviation baffle 6, the ventiduct between axial radials and the stator sleeve 1 forms the air current, discharge by the air outlet of main shaft 9's right side bearing frame 3 again, thereby cool off stator core.
The above-mentioned embodiments are further described in detail for the purpose of the present invention, and it should be understood that although the present invention is described in terms of implementation, the above-mentioned embodiments are exemplary and not intended to limit the scope of the present invention, and any changes, modifications, substitutions and variations of the above-mentioned embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. An end cover component of an air-cooled outer rotor electric roller is characterized by comprising an end cover (15), an oil cover component, a bearing (17), a bearing seat (3) and a sealing device, wherein the oil cover component is connected with the end cover (15), the end cover (15) is connected with the bearing (17), the bearing (17) is connected with the bearing seat (3), the sealing device is positioned between the end cover (15) and the oil cover component, the inner ring of the bearing seat (3) is directly used as an air inlet and an air outlet, the end cover (15) is respectively connected with two ends of a stator assembly structure, ventilation ducts positioned outside a shaft are distributed on the stator assembly structure, two ends of the ventilation ducts correspond to the air inlet and the air outlet, cooling air flows enter the ventilation ducts outside the shaft of the stator assembly structure through an air inlet of the end cover component at one end of the stator assembly structure to cool a stator, and then discharged through an air outlet of the end cover component at the other end of the stator assembly structure.
2. The end cap assembly of the air-cooled external rotor electric roller of claim 1, wherein the bearing (17) is a bore bearing.
3. The end cover assembly of the air-cooled external rotor electric roller as recited in claim 1, wherein the end cover assembly comprises an inner oil cover (18) and an outer oil cover (13), the inner oil cover (18) and the outer oil cover (13) are both hollow or annular, the inner oil cover (18) and the outer oil cover (13) are respectively located at two sides of the end cover (15) and fixedly connected with the end cover (15) through a fastener.
4. The end cover assembly of the air-cooled external rotor electric roller as recited in claim 3, characterized in that the inner hole of the external oil cover (13) is provided with a rotary shaft lip-shaped sealing ring (20), and the external oil cover (13) is provided with a plurality of countersunk holes along the circumferential direction.
5. The end cover assembly of the air-cooled external rotor electric roller as recited in claim 3, wherein the inner oil cover (18) has oil grooves uniformly distributed along the circumferential direction.
6. The end cap assembly for an air-cooled external rotor motorized pulley according to claim 3, wherein the sealing means comprises a first seal ring (14) and a second seal ring (16), the first seal ring (14) being located between the outer oil cap (13) and the end cap (15), the second seal ring (16) being located between the inner oil cap (18) and the end cap (15).
7. The end cover assembly of the air-cooled external rotor electric roller of claim 5, wherein the end cover (15) is in a stepped flange shape, through holes (23) for oil nozzles are uniformly distributed on the end cover (15) along the circumferential direction, and the through holes (23) for oil nozzles correspond to the oil grooves one by one.
8. The end cover assembly of the air-cooled external rotor electric roller as claimed in claim 1, wherein the outer ring of the bearing seat (3) is in a step shape, and the inner ring is provided with a chamfer angle, and the chamfer angle is 5-45 degrees.
9. The end cover assembly of the air-cooled external rotor electric roller according to claim 1, wherein an inner ring of the bearing seat (3) is welded with an axial rib plate (4), the axial rib plate (4) is welded with the main shaft (9), 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 main shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455812.6U CN211629991U (en) | 2020-04-01 | 2020-04-01 | End cover assembly of air-cooled outer rotor electric roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455812.6U CN211629991U (en) | 2020-04-01 | 2020-04-01 | End cover assembly of air-cooled outer rotor electric roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211629991U true CN211629991U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020455812.6U Active CN211629991U (en) | 2020-04-01 | 2020-04-01 | End cover assembly of air-cooled outer rotor electric roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211629991U (en) |
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2020
- 2020-04-01 CN CN202020455812.6U patent/CN211629991U/en active Active
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