CN217607613U - Flame-proof type high-temperature-resistant three-phase asynchronous motor - Google Patents
Flame-proof type high-temperature-resistant three-phase asynchronous motor Download PDFInfo
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- CN217607613U CN217607613U CN202221184292.5U CN202221184292U CN217607613U CN 217607613 U CN217607613 U CN 217607613U CN 202221184292 U CN202221184292 U CN 202221184292U CN 217607613 U CN217607613 U CN 217607613U
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Abstract
The utility model discloses a flame-proof type high temperature resistant three-phase asynchronous motor, which comprises a motor shell, a stator core, a stator winding, a rotor core, a rotor winding and a rotating shaft, wherein a rotating gap is arranged between the stator winding and the rotor winding, and a flame-proof component communicated with the rotating gap is arranged on the motor shell; in the utility model, when the air pressure in the motor is too high due to short circuit of the winding coil or other reasons, the air pressure in the motor pushes the valve plug to move towards the first air port, the valve plug is gradually separated from the sealing ring and finally moves into the accommodating cavity of the first limiting plate, at the moment, the first cavity is communicated with the second cavity, and the air pressure is finally discharged out of the motor through the second air port, the communication hole of the second limiting plate, the second cavity, the sealing ring, the first cavity, the communication hole of the first limiting plate and the first air port in sequence; thereby avoiding the explosion of the motor caused by overhigh air pressure in the motor.
Description
Technical Field
The utility model belongs to the technical field of three-phase asynchronous motor, a flame proof type high temperature resistant three-phase asynchronous motor is related to.
Background
The existing explosion-proof motor is of a closed structure, when a large amount of heat is generated in the explosion-proof motor and accumulated, the heat accumulation can cause abnormal work of parts in the motor, and in addition, the accumulated heat can affect a stator winding coil of the explosion-proof motor, so that the winding coil is damaged, and fatal damage is caused to the explosion-proof motor; if the winding coil takes place the short circuit then can lead to the inside circuit of motor to burn out, the inside a large amount of dense cigarettes that produce of motor simultaneously, the motor is inside because of the too high motor explosion that causes of atmospheric pressure, for solving above-mentioned problem, the utility model provides a flame proof type high temperature resistant three-phase asynchronous motor.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the background art, the utility model provides a flame-proof type high temperature resistant three-phase asynchronous motor.
In order to realize the purpose, the utility model adopts the technical scheme as follows: a flame-proof high-temperature-resistant three-phase asynchronous motor comprises a motor shell, a stator core, a stator winding, a rotor core, a rotor winding and a rotating shaft, wherein a rotating gap is formed between the stator winding and the rotor winding, and a flame-proof assembly communicated with the rotating gap is arranged on the motor shell; the explosion-proof assembly comprises a mounting pipe with a first air port and a second air port, a valve plug movably mounted in the mounting pipe and an adjusting piece mounted in the mounting pipe; the first air port is communicated with the outside air, and the second air port is communicated with the rotating gap; the adjusting piece adjusts the on-off of the first air port and the second air port by changing the position of the valve plug in the mounting pipe.
Further, the adjusting piece comprises a first limiting plate, a second limiting plate, a first spring, a second spring and a push rod; the first limiting plate and the second limiting plate are both provided with stepped holes along the axes thereof, and two ends of the push rod are slidably arranged in the small-diameter sections of the stepped holes of the first limiting plate and the second limiting plate in a penetrating manner; the valve plug is coaxially fixed in the middle of the push rod; the first spring is positioned in the large-diameter section of the stepped hole of the first limiting plate, and two ends of the first spring are respectively abutted against the first limiting plate and the valve plug; the second spring is positioned in the large-diameter section of the stepped hole of the second limiting plate, and two ends of the second spring are respectively abutted against the second limiting plate and the valve plug; a plurality of communicating holes are formed in the first limiting plate and the second limiting plate.
Furthermore, a limiting bulge is fixed on the inner wall of the mounting pipe positioned at the second air port; the middle part in the installation pipe is also provided with an annular middle plate matched with the valve plug; the first limiting plate, the annular middle plate and the second limiting plate are sequentially arranged in the mounting pipe, and the second limiting plate is abutted to the limiting protrusions.
Further, a sealing ring is arranged on the inner wall of the annular middle-arranged plate; the valve plug is arranged in the sealing ring in a penetrating way and is connected with the sealing ring in a sealing way.
Further, a first annular stop plate is arranged between the first limiting plate and the annular middle plate, and a second annular stop plate is arranged between the annular middle plate and the second limiting plate.
Further, the lateral wall of first limiting plate orientation valve plug and the lateral wall of second limiting plate orientation valve plug all offer the chamber that holds that supplies the valve plug to stretch into.
Further, the inner wall of the mounting pipe positioned at the first air port is fixed with a limit ring in a threaded mode.
Compared with the prior art, the utility model discloses following beneficial effect has: in the utility model, when the air pressure inside the motor is too high due to short circuit of the winding coil or other reasons, the air pressure inside the motor pushes the valve plug to move towards the first air port, the valve plug gradually breaks away from the sealing ring and finally moves into the accommodating cavity of the first limiting plate, at the moment, the first cavity is communicated with the second cavity, and the air pressure is finally discharged out of the motor through the second air port, the communication hole of the second limiting plate, the second cavity, the sealing ring, the first cavity, the communication hole of the first limiting plate and the first air port in sequence; thereby avoiding the explosion of the motor caused by overhigh air pressure in the motor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a sectional view taken along B-B in fig. 1.
In the figure: 1. a motor housing; 2. a rotating shaft; 3. a first gas port; 4. a second gas port; 5. installing a pipe; 6. a valve plug; 7. a first limit plate; 8. a second limiting plate; 9. a first spring; 10. a second spring; 11. a push rod; 12. a stepped hole; 13. a communicating hole; 14. a limiting bulge; 15. an annular middle plate; 16. a seal ring; 17. a first annular stop plate; 18. a second annular stop plate; 19. an accommodating chamber; 20. a limiting ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the technical solution adopted by the present invention is as follows: a flame-proof high-temperature resistant three-phase asynchronous motor comprises a motor shell 1, a stator core, a stator winding, a rotor core, a rotor winding and a rotating shaft 2; the stator winding is wound on the stator core and fixed on the inner wall of the motor shell 1; the rotor winding is wound on the rotor core, and the rotating shaft 2 penetrates through and is fixed on the rotor core along the central axis of the rotor core; the stator core is rotatably arranged in the motor shell 1 through a rotating shaft 2; be equipped with the running clearance between stator winding and the rotor winding, install the flame proof subassembly with this running clearance intercommunication on the motor casing 1, when the inside great atmospheric pressure that produces of motor, this flame proof subassembly can be with the inside and the outside intercommunication of motor, make the inside pressure release of motor to avoid the motor to explode.
In this embodiment, the flameproof component includes installation pipe 5, valve plug 6 and regulating part.
A mounting pipe 5 is welded on the motor shell 1, the mounting pipe 5 is provided with a first air port 3 and a second air port 4, the first air port 3 is communicated with the outside air, and the second air port 4 is communicated with the rotating gap; the valve plug 6 is movably arranged in the mounting pipe 5 through an adjusting piece, and the adjusting piece adjusts the on-off of the first air port 3 and the second air port 4 by changing the position of the valve plug 6 in the mounting pipe 5, so that the on-off of the inside of the motor and the outside of the motor is adjusted; when the motor works normally, the first air port 3 is not communicated with the second air port 4, and the inside of the motor and the outside of the motor are in a cut-off state, so that external objects are prevented from entering the inside of the motor, and the stable operation of the motor is ensured; when the internal pressure of the motor is too high, the first air port 3 is communicated with the second air port 4, the inside of the motor is communicated with the outside of the motor, the pressure of the motor is relieved, and the motor is prevented from exploding.
In this embodiment, the adjusting member includes a first limiting plate 7, a second limiting plate 8, a first spring 9, a second spring 10, and a push rod 11.
The first limiting plate 7 and the second limiting plate 8 are both provided with a stepped hole 12 along the axis thereof, and the stepped hole 12 of the first limiting plate 7 and the stepped hole 12 of the second limiting plate 8 are arranged oppositely; two ends of the push rod 11 are slidably arranged in the small-diameter sections of the stepped holes 12 of the first limiting plate 7 and the second limiting plate 8 in a penetrating manner; the valve plug 6 is fixed at the middle position of the push rod 11; the first spring 9 is positioned in the large-diameter section of the stepped hole 12 of the first limiting plate 7, and two ends of the first spring are respectively abutted against the inner wall of the stepped hole 12 of the first limiting plate 7 and the left side wall of the valve plug 6; the second spring 10 is located in the large-diameter section of the stepped hole 12 of the second limiting plate 8, and two ends of the second spring respectively abut against the inner wall of the stepped hole 12 of the second limiting plate 8 and the right side wall of the valve plug 6.
The first limiting plate 7 and the second limiting plate 8 are both provided with a plurality of communicating holes 13 uniformly along the axes; the communicating hole 13 on the first limiting plate 7 is communicated with the first air port 3, and the communicating hole 13 on the second limiting plate 8 is communicated with the second air port 4.
In this embodiment, the inner wall of the installation pipe 5, which is located at the second air port 4, is welded with a limiting bulge 14; an annular middle plate 15 matched with the valve plug 6 is further arranged in the middle of the installation pipe 5; a first annular stop plate 17 is further arranged between the first limit plate 7 and the annular middle plate 15; a second annular stop plate 18 is also mounted between the annular intermediate plate 15 and the second limit plate 8.
The second limiting plate 8, the second annular stop plate 18, the annular middle plate 15, the first annular stop plate 17 and the first limiting plate 7 sequentially slide and penetrate into the installation pipe 5, the second limiting plate 8 abuts against the limiting bulge 14, and finally the limiting ring 20 penetrating through the threads in the installation pipe 5 is fixed to the first limiting plate 7.
A first annular stop plate 17 forms a first cavity between the first limit plate 7 and the annular middle plate 15, and a second annular stop plate 18 forms a second cavity between the second limit plate 8 and the annular middle plate 15; the communicating hole 13 arranged on the first limit plate 7 communicates the first air port 3 with the first cavity, and the communicating hole 13 arranged on the second limit plate 8 communicates the second air port 4 with the second cavity.
In this embodiment, a sealing ring 16 is installed in the annular middle plate 15, and the valve plug 6 is inserted into the sealing ring 16 and is connected with the sealing ring 16 in a sealing manner; when the valve plug 6 is in the sealing ring 16, the first and second cavities are not in communication.
Preferably, a wider sealing ring 16 is used, so that the valve plug 6 is completely inserted into the sealing ring 16, further improving the sealing effect.
In this embodiment, the sidewall of the first limiting plate 7 facing the valve plug 6 and the sidewall of the second limiting plate 8 facing the valve plug 6 are both provided with an accommodating cavity 19 into which the valve plug 6 extends; when the first cavity and the second cavity need to be communicated, the valve plug 6 extends into any accommodating cavity 19, and the communication degree of the first cavity and the second cavity is further improved.
When the device is used:
in an initial state, the second limit plate 8, the second annular stop plate 18, the annular middle plate 15, the first annular stop plate 17 and the first limit plate 7 sequentially slide and penetrate into the mounting pipe 5; the valve plug 6 is arranged in the mounting pipe 5 through a push rod 11 and is positioned in a sealing ring 16 through the action of a first spring 9 and a second spring 10; the first and second ports 3 and 4 are in a shut-off state.
When the motor is inside when leading to atmospheric pressure too high because of winding coil short circuit or other reasons, the inside atmospheric pressure of motor promotes valve plug 6 and removes to 3 directions of first gas ports, valve plug 6 breaks away from sealing washer 16 gradually, and finally remove in the chamber 19 that holds of first limiting plate 7, first cavity and second cavity intercommunication this moment, atmospheric pressure is in proper order through second gas port 4, the intercommunicating pore 13 of second limiting plate 8, the second cavity, sealing washer 16, first cavity, the intercommunicating pore 13 of first limiting plate 7, first gas port 3, the motor that finally discharges is outside.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a flame-proof type high temperature resistant three-phase asynchronous motor, includes motor housing (1), stator core, stator winding, rotor core, rotor winding and pivot (2), its characterized in that: a rotating gap is formed between the stator winding and the rotor winding, and an explosion-proof assembly communicated with the rotating gap is arranged on the motor shell (1); the explosion-proof assembly comprises a mounting pipe (5) with a first air port (3) and a second air port (4), a valve plug (6) movably mounted in the mounting pipe (5), and an adjusting piece mounted in the mounting pipe (5); the first air port (3) is communicated with the outside air, and the second air port (4) is communicated with the rotating gap; the adjusting piece adjusts the on-off of the first air port (3) and the second air port (4) by changing the position of the valve plug (6) in the installation pipe (5).
2. The flameproof high-temperature-resistant three-phase asynchronous motor according to claim 1, characterized in that: the adjusting piece comprises a first limiting plate (7), a second limiting plate (8), a first spring (9), a second spring (10) and a push rod (11); the first limiting plate (7) and the second limiting plate (8) are both provided with stepped holes (12) along the axis of the first limiting plate and the second limiting plate, and two ends of the push rod (11) are slidably arranged in the small-diameter sections of the stepped holes (12) of the first limiting plate (7) and the second limiting plate (8); the valve plug (6) is coaxially fixed at the middle position of the push rod (11); the first spring (9) is positioned in the large-diameter section of the stepped hole (12) of the first limiting plate (7), and two ends of the first spring are respectively abutted against the first limiting plate (7) and the valve plug (6); the second spring (10) is positioned in the large-diameter section of the stepped hole (12) of the second limiting plate (8), and two ends of the second spring are respectively abutted against the second limiting plate (8) and the valve plug (6); a plurality of communicating holes (13) are formed in the first limiting plate (7) and the second limiting plate (8).
3. The flameproof high-temperature-resistant three-phase asynchronous motor according to claim 2, characterized in that: a limiting bulge (14) is fixed on the inner wall of the mounting pipe (5) positioned at the second air port (4); an annular middle plate (15) matched with the valve plug (6) is further mounted in the middle of the mounting pipe (5); the first limiting plate (7), the annular middle plate (15) and the second limiting plate (8) are sequentially mounted in the mounting pipe (5), and the second limiting plate (8) abuts against the limiting protrusion (14).
4. The flameproof high-temperature-resistant three-phase asynchronous motor according to claim 3, characterized in that: a sealing ring (16) is arranged on the inner wall of the annular middle plate (15); the valve plug (6) penetrates through the sealing ring (16) and is connected with the sealing ring (16) in a sealing mode.
5. The flameproof high-temperature-resistant three-phase asynchronous motor according to claim 3, characterized in that: a first annular stop plate (17) is arranged between the first limiting plate (7) and the annular middle plate (15), and a second annular stop plate (18) is arranged between the annular middle plate (15) and the second limiting plate (8).
6. The flameproof high-temperature-resistant three-phase asynchronous motor according to claim 3, characterized in that: the lateral wall of first limiting plate (7) orientation valve plug (6) and second limiting plate (8) orientation valve plug (6) all offer the chamber (19) that holds that supplies valve plug (6) to stretch into.
7. The flameproof high-temperature-resistant three-phase asynchronous motor according to claim 3, characterized in that: the mounting pipe (5) is positioned on the inner wall of the first air port (3) and is fixed with a limiting ring (20) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221184292.5U CN217607613U (en) | 2022-05-18 | 2022-05-18 | Flame-proof type high-temperature-resistant three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221184292.5U CN217607613U (en) | 2022-05-18 | 2022-05-18 | Flame-proof type high-temperature-resistant three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217607613U true CN217607613U (en) | 2022-10-18 |
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ID=83568298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221184292.5U Active CN217607613U (en) | 2022-05-18 | 2022-05-18 | Flame-proof type high-temperature-resistant three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217607613U (en) |
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2022
- 2022-05-18 CN CN202221184292.5U patent/CN217607613U/en active Active
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