CN211046636U - Medium-large motor - Google Patents
Medium-large motor Download PDFInfo
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- CN211046636U CN211046636U CN201922314649.1U CN201922314649U CN211046636U CN 211046636 U CN211046636 U CN 211046636U CN 201922314649 U CN201922314649 U CN 201922314649U CN 211046636 U CN211046636 U CN 211046636U
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Abstract
The utility model provides a medium-large motor. The medium-large motor comprises: the motor comprises a motor main body, a rear shell, a front shell and a rotating shaft; the rear bearing mounting seat is arranged on one side of the inner wall of the motor main body; the front bearing mounting seat is arranged at the center of the front shell, the rear bearing mounting seat and the front bearing mounting seat are arranged inside and located on the surface of the rotating shaft, and the rear bearing mounting seat and the front bearing mounting seat are arranged inside and located on one side of the bearing fixedly connected with a steel ring. The utility model provides a medium and large-scale motor has through a side-mounting steel ring 8 at the bearing, and the external diameter 250mm of steel ring, and thickness 20mm carries on spacingly through the steel ring to the bearing, can prevent effectively that the bearing stress face from taking place the displacement, and oil lubrication plays good lubrication action, and bearing temperature is now stabilized about the degree, has prolonged motor life, has reduced the fault rate, has ensured motor steady operation.
Description
Technical Field
The utility model relates to a well large-scale motor field especially relates to a well large-scale motor.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, and the motor mainly functions to generate driving torque and is used as a power source of electric appliances or various machines.
The bearing often appears generating heat when using 560KW three-phase asynchronous machine at present, and the temperature can be up to 90 ℃, in the use, because inside bearing uses the atress after for a long time, the condition of position deviation appears easily, when bearing position deviation, bearing temperature rising and lead to the shut down incident can appear at the in-process of motor work, need often change the bearing, troublesome poeration, it is with high costs.
Therefore, it is necessary to provide a medium-large motor to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a medium and large-scale motor has solved medium and large-scale motor, and the condition of skew appears easily after long-time use atress in the inside bearing, and the motor during operation can arouse the bearing temperature and rise and lead to the problem of shut down incident.
In order to solve the technical problem, the utility model provides a medium-large motor, include: the motor comprises a motor main body, a rear shell, a front shell and a rotating shaft;
the rear bearing mounting seat is arranged on one side of the inner wall of the motor main body;
the front bearing mounting seat is arranged in the center of the front shell, a bearing is arranged inside the rear bearing mounting seat and the front bearing mounting seat and positioned on the surface of the rotating shaft, and a steel ring is fixedly connected inside the rear bearing mounting seat and the front bearing mounting seat and positioned on one side of the bearing;
the fan is sleeved on the surface of the rotating shaft and is positioned in the rear shell, and a precooling assembly is fixedly arranged between the top and the bottom of the inner wall of the rear shell and positioned on one side of the fan;
the air inlet is formed in one side of the rear shell and is obliquely arranged;
the V-shaped heat dissipation holes are formed in the front shell.
Preferably, the precooling assembly comprises heat-conducting frames, a plurality of heat-conducting plates are fixedly connected between the heat-conducting frames, a cooling cavity is formed in the heat-conducting plates, and cooling liquid is arranged in the cooling cavity.
Preferably, the bottom of the upper top of the heat conducting plate is provided with a wavy surface, and the two sides of the heat conducting plate are provided with circular arcs.
The inside that can enter into the motor after the air current precooling that produces by the fan through setting up the precooling subassembly makes radiating effect better, and the air current that gets into passes through the heat-conducting plate in proper order, the upper and lower both sides of heat-conducting plate do not all set up to the wave face to and both sides all set up to the arc surface, can increase the area of contact with the air current, can accelerate to pour the heat in the air current into to inside coolant liquid, the heating is to the cooling of air current, improve radiating efficiency.
Preferably, a connecting pipe is communicated between the adjacent heat conducting plates, and one side of each heat conducting plate is communicated with a supplementary pipe.
The adjacent heat conduction plates are communicated through the connecting pipe, and when the volatilization of the cooling liquid in the heat conduction plates is reduced, the rear shell can be detached and supplemented through the supplement pipe.
Preferably, a plurality of through holes are formed in the left side of the inner wall of the motor main body, and a circular hole is formed in the center of the precooling assembly.
Preferably, a first dust screen is bonded on the inner wall of the front shell and at a position corresponding to the V-shaped heat dissipation hole.
Set up V font louvre with the exhaust vent, when the dust enters through its hole, because the gravity most stops in the lowest of V font louvre, the first dust screen of cooperation, the entering of reduction dust that can be very big, and when the fan was opened, can blow off the dust that is located V font louvre inside.
Preferably, a second dustproof net is bonded on the inner wall of the rear shell and at a position corresponding to the air inlet hole.
The air inlet holes are obliquely arranged, when dust enters, the dust can slide downwards under the action of gravity, and the second dust screen can more effectively prevent the dust from entering the motor through the air inlet holes.
Compared with the prior art, the utility model provides a medium and large-scale motor has following beneficial effect:
the utility model provides a medium-large motor, through installing steel ring 8 in one side of bearing, and the external diameter 250mm of steel ring, thickness 20mm, carry on the spacing to the bearing through the steel ring, can prevent effectively that the bearing stress surface from not taking place the displacement, the oil lubrication plays good lubrication action, the bearing temperature is stabilized about the degree now, has lengthened the service life of the motor, has reduced the fault rate, has ensured the stable operation of the motor;
the fan precools and cools the air through the precooling assembly and then the air enters the motor, so that the heat dissipation effect is better;
set up the fresh air inlet slope, when the dust enters into, the effect that receives gravity can roll-off downwards, cooperation second dust screen can more effectually prevent that the dust from entering into the motor through the fresh air inlet inside, and set up V font louvre with the exhaust vent, when the dust enters into through its hole, because the gravity most stops in the lower of V font louvre, cooperation first dust screen, the entering of the dust that reduces that can be very big, and when the fan was opened, can blow off the dust that is located V font louvre inside, it is dustproof effectual.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a medium-large motor according to the present invention;
FIG. 2 is a side view of the pre-cooling assembly shown in FIG. 1;
fig. 3 is an enlarged schematic view of a portion a shown in fig. 1.
Reference numbers in the figures: 1. motor main part, 2, backshell, 3, preceding shell, 4, axis of rotation, 5, rear bearing mount pad, 6, front bearing mount pad, 7, bearing, 8, steel ring, 9, precooling subassembly, 91, heat conduction frame, 92, heat-conducting plate, 93, coolant liquid, 94, wave face, 95, connecting pipe, 96, supplementary pipe, 97, round hole, 10, V font louvre, 11, first dust screen, 12, fresh air inlet, 13, second dust screen, 14, fan, 15, through-hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a medium-large motor according to a preferred embodiment of the present invention; FIG. 2 is a side view of the pre-cooling assembly shown in FIG. 1; fig. 3 is an enlarged schematic view of a portion a shown in fig. 1. Medium and large-sized electric machine comprising: the motor comprises a motor main body 1, a rear shell 2, a front shell 3 and a rotating shaft 4;
the rear bearing mounting seat 5 is arranged on one side of the inner wall of the motor main body 1;
the front bearing mounting seat 6 is arranged at the center of the front shell 3, a bearing 7 is arranged inside the rear bearing mounting seat 5 and the front bearing mounting seat 6 and on the surface of the rotating shaft 4, and a steel ring 8 is fixedly connected inside the rear bearing mounting seat 5 and the front bearing mounting seat 6 and on one side of the bearing 7;
the fan 14 is sleeved on the surface of the rotating shaft 4 and is positioned inside the rear shell 2, and a precooling assembly 9 is fixedly installed between the top and the bottom of the inner wall of the rear shell 2 and on one side of the fan 14;
the air inlet 12 is formed in one side of the rear shell 2, and the air inlet 12 is obliquely arranged;
v font louvre 10, V font louvre 10 seted up on the preceding shell 3.
The outer diameter of the steel ring is 250mm, and the thickness of the steel ring is 20 mm.
The heat conducting plate 92 and the heat conducting frame 91 are made of metal materials with good heat conducting performance, and can be made of aluminum materials, the heat conducting plate 92 and the heat conducting frame 91 are fixed in a bonding or welding mode, and the distance between every two adjacent heat conducting plates 92 is 1-2 cm.
The bottom of the upper top of the heat conducting plate 92 is provided with a wavy surface, and the two sides of the heat conducting plate 92 are provided with circular arcs.
A connecting pipe 95 is communicated between the adjacent heat conduction plates 92, and a supplement pipe 96 is communicated with one side of the heat conduction plate 92.
One end of the supplementary duct 96 is provided with a sealing cap, and the supplementary duct 96 is located at a side away from the fan 14.
A plurality of through holes 15 are formed in the left side of the inner wall of the motor main body 1, and a circular hole 97 is formed in the center of the precooling assembly 9.
The through hole 15 is used for introducing the airflow into the motor main body 1, and the pre-cooling assembly 9 is sleeved on the surface of the rotating shaft 4 through the circular hole 97.
A first dust screen 11 is bonded on the inner wall of the front shell 3 and at a position corresponding to the V-shaped heat dissipation hole 10.
And a second dustproof net 13 is bonded on the inner wall of the rear shell 2 and at a position corresponding to the air inlet 12.
The aperture of the first dust screen 11 and the second dust screen is not more than 0.1 mm;
the center of the inner wall of the rear shell 2 is provided with a circular groove cavity matched with the rotating shaft 4, and the end part of the rotating shaft 4 is positioned in the circular groove cavity.
The motor main body 1 includes necessary motor components such as a stator, a rotor, and brushes.
The utility model provides a large-and-medium-sized motor's theory of operation as follows:
the steel ring 8 is arranged on one side of the bearing, the outer diameter of the steel ring is 250mm, the thickness of the steel ring is 20mm, the bearing 7 is limited through the steel ring, the bearing stress surface can be effectively prevented from being displaced, oil lubrication has a good lubrication effect, the temperature of the bearing is stabilized at about 50 ℃, the service life of the motor is prolonged, the failure rate is reduced, and the stable operation of the motor is guaranteed;
when the fan 14 is used for dissipating heat inside the motor, the fan 14 precools and cools air through the precooling assembly 9 and then enters the motor, so that the heat dissipation effect is better;
the entering airflow sequentially passes through the heat conducting plate 92, the upper side and the lower side of the heat conducting plate 92 are not provided with the wavy surfaces 94, and the two sides are provided with the arc surfaces, so that the contact area with the airflow can be increased, the heat in the airflow can be accelerated to be poured into the cooling liquid 93 in the heat conducting plate, the airflow is cooled by heating, and the heat dissipation efficiency is improved;
set up the fresh air inlet 12 slope, when the dust enters into, the effect that receives gravity can roll-off downwards, cooperation second dust screen 13 can more effectually prevent that the dust from entering into the motor through fresh air inlet 12 inside, and set up V font louvre 10 with the exhaust vent, when the dust enters into through its hole, because the gravity most stops in the lower of V font louvre 10, cooperate first dust screen 11, the entering of reduction dust that can be very big, and when the fan was opened, can blow off the inside dust that is located V font louvre, it is dustproof effectual.
Compared with the prior art, the utility model provides a medium and large-scale motor has following beneficial effect:
the steel ring 8 is arranged on one side of the bearing, the outer diameter of the steel ring is 250mm, the thickness of the steel ring is 20mm, the bearing 7 is limited through the steel ring, the bearing stress surface can be effectively prevented from being displaced, oil lubrication has a good lubrication effect, the temperature of the bearing is stabilized at about 50 ℃, the service life of the motor is prolonged, the failure rate is reduced, and the stable operation of the motor is guaranteed;
the fan 14 precools and cools the air through the precooling assembly 9 and then the air enters the motor, so that the heat dissipation effect is better;
set up the fresh air inlet 12 slope, when the dust enters into, the effect that receives gravity can roll-off downwards, cooperation second dust screen 13 can more effectually prevent that the dust from entering into the motor through fresh air inlet 12 inside, and set up V font louvre 10 with the exhaust vent, when the dust enters into through its hole, because the gravity most stops in the lower of V font louvre 10, cooperate first dust screen 11, the entering of reduction dust that can be very big, and when the fan was opened, can blow off the inside dust that is located V font louvre, it is dustproof effectual.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (7)
1. A medium or large-sized motor comprising: the motor comprises a motor main body, a rear shell, a front shell and a rotating shaft; the method is characterized in that:
the rear bearing mounting seat is arranged on one side of the inner wall of the motor main body;
the front bearing mounting seat is arranged in the center of the front shell, a bearing is arranged inside the rear bearing mounting seat and the front bearing mounting seat and positioned on the surface of the rotating shaft, and a steel ring is fixedly connected inside the rear bearing mounting seat and the front bearing mounting seat and positioned on one side of the bearing;
the fan is sleeved on the surface of the rotating shaft and is positioned in the rear shell, and a precooling assembly is fixedly arranged between the top and the bottom of the inner wall of the rear shell and positioned on one side of the fan;
the air inlet is formed in one side of the rear shell and is obliquely arranged;
the V-shaped heat dissipation holes are formed in the front shell.
2. The medium-large motor according to claim 1, wherein the pre-cooling assembly comprises heat-conducting frames, a plurality of heat-conducting plates are fixedly connected between the heat-conducting frames, cooling cavities are formed in the heat-conducting plates, and cooling liquid is arranged in the cooling cavities.
3. The medium or large-sized motor according to claim 2, wherein the bottom of the upper top of the heat conductive plate is formed as a wavy surface, and both sides of the heat conductive plate are formed in a circular arc shape.
4. The medium or large-sized motor according to claim 2, wherein a connecting pipe is communicated between the adjacent heat-conducting plates, and a supplementary pipe is communicated with one side of the heat-conducting plate.
5. The medium-large motor according to claim 1, wherein a plurality of through holes are formed in the left side of the inner wall of the motor body, and a circular hole is formed in the center of the precooling assembly.
6. The medium-large motor according to claim 1, wherein a first dust screen is bonded to a position of the inner wall of the front case corresponding to the position of the V-shaped heat dissipation hole.
7. The medium-large motor according to claim 1, wherein a second dust screen is bonded to the inner wall of the rear case at a position corresponding to the air inlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922314649.1U CN211046636U (en) | 2019-12-21 | 2019-12-21 | Medium-large motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922314649.1U CN211046636U (en) | 2019-12-21 | 2019-12-21 | Medium-large motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211046636U true CN211046636U (en) | 2020-07-17 |
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ID=71539466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922314649.1U Active CN211046636U (en) | 2019-12-21 | 2019-12-21 | Medium-large motor |
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| Country | Link |
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| CN (1) | CN211046636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738323A (en) * | 2017-02-21 | 2017-05-31 | 王宏保 | Portable mixed mud mixer |
-
2019
- 2019-12-21 CN CN201922314649.1U patent/CN211046636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738323A (en) * | 2017-02-21 | 2017-05-31 | 王宏保 | Portable mixed mud mixer |
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