CN112583186A - Explosion-proof axial flow fan motor - Google Patents
Explosion-proof axial flow fan motor Download PDFInfo
- Publication number
- CN112583186A CN112583186A CN201910947604.XA CN201910947604A CN112583186A CN 112583186 A CN112583186 A CN 112583186A CN 201910947604 A CN201910947604 A CN 201910947604A CN 112583186 A CN112583186 A CN 112583186A
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- CN
- China
- Prior art keywords
- explosion
- junction box
- axial flow
- flow fan
- fan motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
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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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to the field of motors, in particular to an explosion-proof axial flow fan motor which overcomes the defects of the existing explosion-proof axial flow fan motor. The casing (1) is made of high-strength cast iron, the inner cavity of the casing is enough to contain the expansion coefficient of gas, and three smooth support ribs (9) are uniformly distributed on the outer circle of the casing; the stator (2) is embedded into an excitation winding (11) with 80 percent of current-carrying capacity of a common motor, and the end parts of two ends of the excitation winding are shortened; a semicircular groove (26) for installing an O-shaped sealing ring (25) is arranged on the junction box cover (19); end rings (4) at two ends of the rotor (3) are thickened; the front end of the nut (8) is round; a flame-retardant sealing ring (6) is arranged between the rotating shaft (7) and the front end (5); the outlet hole (14) is provided with a sealing insulating rubber tube (15); a porcelain insulator (17) is arranged between the copper binding post (18) and the junction box (16); a compressed rubber sheath (24) is arranged in the pipeline (20) of the power-on waterline (23) of the junction box cover (19).
Description
Technical Field
The invention belongs to the field of motors, and particularly relates to an explosion-proof axial flow fan motor.
Background
At present, in coal mines, storage, workshops with inflammable and explosive gases and the like, the YT 35-shaped explosion-proof axial flow fan motor is used for achieving the purpose of explosion prevention, except for the space increase of the shell and the inner cavity of the shell, the junction box cover and a pipeline leading in a lead have structural defects, the installation and wiring are troublesome, the fan generates vibration and noise, and a plurality of potential safety hazards exist.
According to the defects of the prior art, the explosion-proof axial flow fan motor which eliminates vibration and noise and is convenient to mount and connect is invented.
Disclosure of Invention
The explosion-proof axial flow fan motor is used in coal mine, warehouse, workshop with inflammable and explosive gas and other places to reach the aim of explosion-proof and smooth axial flow wind direction motor, eliminate original defect, reduce vibration, reduce loss and eliminate noise.
According to the invention, the casing (1) is made of high-strength cast iron, the volume of the inner cavity is large enough to accommodate the expansion limit of gas, and the pressure of the inner cavity is reduced, three support ribs (9) are uniformly distributed on the outer circle of the casing (1), the protruding parts of the support ribs (9) must be smooth, and screw holes (10) are arranged on the support ribs (9); a stator core (2) is arranged in a machine shell (1), an excitation winding (11) is embedded in a slot of the stator core (2), the current-carrying capacity of the excitation winding (11) is 80% of the current of a common motor with the same power, so that the temperature rise is reduced, the thickness of insulating paper is enhanced in the slots of the excitation winding (11) and the stator core (2), the end parts of two ends of the winding (11) are shortened, and the arc-climbing distance is increased.
Rotor (3) are equipped with in the middle of stator core (2), end links (4) at the both ends of rotor (3) are for reducing the resistance thickening, the current-carrying capacity has been increased, reduce its temperature rise, rotor (3) middle pivot (7) of penetrating, the axle of pivot (7) is stretched the end and is established to the screw, nut (8) front end is established to circularly, reduce windage noise abatement and vibration, the axle of pivot (7) of rotor (3) is stretched the end and is worn out the middle of front end housing (5) and the position of the pivot (7) of wearing out, be equipped with fire-retardant sealing washer (6).
A lead (12) of the excitation winding (11) penetrates out of a wire outlet hole (14) of a rear end cover (13) and is linked at one end of a copper wiring terminal (18), a sealing insulating rubber tube (15) is arranged in the wire outlet hole (14), a porcelain insulator (17) is arranged between the copper wiring terminal (18) and a junction box (16), the rear end cover (13) is linked with the junction box (16), the junction box (16) is closely linked with a junction box cover (19), an O-shaped sealing ring (25) is arranged at the connecting position, a pipeline (20) electrified with a waterline (23) is arranged on the junction box cover (19), a flange (21) is arranged on the head, the flange (21) is tightly connected with a pressure plate (22), a compressed rubber sheath (24) is arranged in the pipeline (20), the electrified waterline (23) is penetrated through the compressed rubber sheath, and the thread end of the penetrated electrified waterline (23) is firmly and well connected on the copper binding post (18).
A semicircular groove (26) for installing an O-shaped sealing ring (25) is arranged on the junction box cover (19).
Drawings
FIG. 1 is a cross-sectional view of the complete machine of the motor of the explosion-proof axial flow fan of the present invention;
FIG. 2 is a right side view of the motor housing of the explosion-proof axial flow fan of the present invention;
FIG. 3 is a cross-sectional view of the explosion-proof axial flow fan motor housing of the present invention;
FIG. 4 is a cross-sectional view of the front end cover of the explosion-proof axial flow fan motor of the present invention;
FIG. 5 is a left side view of the front end cover of the explosion-proof axial flow fan motor of the present invention;
FIG. 6 is a schematic view of the rear end cap of the explosion-proof axial flow fan motor of the present invention;
FIG. 7 is a cross-sectional view of the rear end cap of the explosion-proof axial flow fan motor of the present invention;
FIG. 8 is a schematic view of the junction box of the motor of the explosion-proof axial flow fan of the present invention;
FIG. 9 is a cross-sectional view of the explosion-proof axial fan motor junction box of the present invention;
fig. 10 is a sectional view of a junction box cover of an explosion-proof axial flow fan motor according to the present invention.
This is further described below in conjunction with the figures.
Detailed Description
As shown in the figure, the casing 1 is made of high-strength cast iron, the volume of an inner cavity is large enough to contain the expansion limit of gas, so that the pressure of the inner cavity is reduced, three support ribs 9 are uniformly distributed on the outer circle of the casing 1, the protruding parts of the support ribs 9 are required to be smooth, and screw holes 10 are formed in the support ribs 9; the stator core 2 is arranged in the machine shell 1, the exciting winding 11 is embedded in the slot of the stator core 2, the current-carrying capacity of the exciting winding 11 is 80% of the current of the common motor with the same power, so that the temperature rise is reduced, the thickness of the insulating paper is enhanced in the slots of the exciting winding 11 and the stator core 2, the end parts of two ends of the winding 11 are shortened, and the arc-climbing distance is increased.
The lead 12 of the excitation winding 11 penetrates out of a wire outlet hole 14 of a rear end cover 13 and is connected with one end of a copper binding post 18, a sealing insulating rubber tube 15 is arranged in the wire outlet hole 14, a porcelain insulator 17 is arranged between the copper binding post 18 and a binding box 16, the rear end cover 13 is connected with the binding box 16, the binding box 16 is closely connected with a binding box cover 19, an O-shaped sealing ring 25 is arranged at the connection position, a pipeline 20 of a power-on water line 23 is arranged on the binding box cover 19, a flange 21 is arranged on the head of the binding box, the flange 21 is closely connected with a pressing plate 22, a compressed rubber sheath 24 is arranged in the pipeline 20 and penetrates the power-on water line 23, and the wire head of the penetrated power-on water line 23 is.
The junction box cover 19 is provided with a semicircular groove 26 for mounting the O-shaped sealing ring 25.
The explosion-proof axial flow fan motor of the invention thoroughly changes the defects of the prior YT 35-shaped explosion-proof axial flow fan motor. The motor of the explosion-proof axial flow fan achieves explosion prevention, keeps the axial flow air smooth, eliminates vibration and noise, is convenient to install and wire, reduces loss, and is safe and reliable to use and long in service life.
Claims (4)
1. Explosion-proof axial fan motor, in order to reach explosion-proof and reduce the vibration and reduce the loss noise elimination, its characterized in that: the casing (1) is made of high-strength cast iron, the volume of an inner cavity is large enough to contain the expansion limit of gas, so that the pressure of the inner cavity is reduced, three support ribs (9) are uniformly distributed on the outer circle of the casing (1), the protruding parts of the support ribs (9) must be smooth, and screw holes (10) are formed in the support ribs (9); a stator core (2) is arranged in a machine shell (1), an excitation winding (11) is embedded in a slot of the stator core (2), the current-carrying capacity of the excitation winding (11) is 80% of the current of a common motor with the same power, so that the temperature rise is reduced, the thickness of insulating paper is enhanced in the slots of the excitation winding (11) and the stator core (2), the end parts of two ends of the winding (11) are shortened, and the arc-climbing distance is increased.
2. The motor of the explosion-proof axial flow fan according to claim 1, wherein a rotor (3) is arranged in the middle of a stator core (2), end rings (4) at two ends of the rotor (3) are thickened for reducing resistance, increasing current-carrying capacity and reducing temperature rise of the rotor, a rotating shaft (7) penetrates into the middle of the rotor (3), a shaft extension end of the rotating shaft (7) is arranged as a screw, the front end of a nut (8) is arranged as a circle, wind resistance is reduced, noise and vibration are reduced, and a flame-retardant sealing ring (6) is arranged at a position where the shaft extension end of the rotating shaft (7) of the rotor (3) penetrates out of the middle of a front end cover (5) and out of the.
3. The explosion-proof axial flow fan motor according to claim 1, wherein a lead wire (12) of the excitation winding (11) penetrates out of a wire outlet hole (14) of the rear end cover (13) and is connected with one end of a copper binding post (18), a sealing insulating rubber tube (15) is arranged in the wire outlet hole (14), a porcelain insulator (17) is arranged between the copper binding post (18) and a junction box (16), the rear end cover (13) is connected with the junction box (16), and the junction box (16) is tightly connected with a junction box cover (19), an O-shaped sealing ring (25) is arranged at the connecting position, a pipeline (20) electrified with a waterline (23) is arranged on the junction box cover (19), a flange (21) is arranged on the head, the flange (21) is tightly connected with a pressure plate (22), a compressed rubber sheath (24) is arranged in the pipeline (20), the electrified waterline (23) is penetrated through the compressed rubber sheath, and the thread end of the penetrated electrified waterline (23) is firmly and well connected on the copper binding post (18).
4. An explosion-proof axial flow fan motor according to claim 1 or 3, wherein the junction box cover (19) is provided with a semicircular groove (26) for mounting the O-shaped sealing ring (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947604.XA CN112583186A (en) | 2019-09-30 | 2019-09-30 | Explosion-proof axial flow fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910947604.XA CN112583186A (en) | 2019-09-30 | 2019-09-30 | Explosion-proof axial flow fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112583186A true CN112583186A (en) | 2021-03-30 |
Family
ID=75117109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910947604.XA Pending CN112583186A (en) | 2019-09-30 | 2019-09-30 | Explosion-proof axial flow fan motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112583186A (en) |
-
2019
- 2019-09-30 CN CN201910947604.XA patent/CN112583186A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210330 |
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| WD01 | Invention patent application deemed withdrawn after publication |