CN202127342U - Explosion-proof three-phase asynchronous outer-rotor motor - Google Patents
Explosion-proof three-phase asynchronous outer-rotor motor Download PDFInfo
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- CN202127342U CN202127342U CN2011202228866U CN201120222886U CN202127342U CN 202127342 U CN202127342 U CN 202127342U CN 2011202228866 U CN2011202228866 U CN 2011202228866U CN 201120222886 U CN201120222886 U CN 201120222886U CN 202127342 U CN202127342 U CN 202127342U
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- proof
- flame
- phase asynchronous
- explosion
- rotor motor
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Abstract
The utility model relates to an explosion-proof three-phase asynchronous outer-rotor motor which comprises an outer rotor and an inner stator, wherein the inner stator is coaxially arranged in the outer rotor, a coil is embedded on the inner stator, and the coil is connected with a lead-out wire. The explosion-proof three-phase asynchronous outer-rotor motor is characterized in that two end covers are arranged on two end faces of the outer rotor; a fixed shaft penetrates through the center of the inner stator and is closely matched with the inner stator; two ends of the fixed shaft extend out from the centers of the two end covers; the two end covers are respectively assembled on the fixed shaft by a bearing; one end of the fixed shaft is provided with a screwed hole and a plane for fixing; the side wall of the other end of the fixed shaft and the axial center are provided with wire holes; the lead-out wire on a coil passes through the thread hole and a protecting sleeve at the end part of the fixed shaft; and an explosion-proof filler with a certain length is filled between the outer wall of the lead-out wire and the inner wall of the wire hole. The explosion-proof three-phase asynchronous outer-rotor motor has simple structure and attractive appearance and can be used in explosive gas atmosphere; and the explosive-proof grade of the explosion-proof three-phase asynchronous outer-rotor motor achieves 'ExdIIBT4'.
Description
Technical field
The utility model belongs to field of motor manufacturing, specifically relates to the phase asynchronous outer rotor motor of a kind of flame-proof type.
Background technology
Along with outer rotor motor being widely used in the blower fan field; Also progressively require outer rotor motor to possess the ability that adapts to explosive gas atmosphere; And present outer rotor motor both domestic and external is except the universal structure of general service (non-explosion-proof); The blast resistance construction that also has only INCREASEDSAFETY " e type " can not satisfy the environmental requirement of ventilation blower flame-proof type " d type ".
Summary of the invention
The purpose of the utility model is to overcome the above-mentioned deficiency that exists in the prior art, and providing a kind of can use in explosive gas atmosphere, and explosive-proof grade reaches the phase asynchronous outer rotor motor of flame-proof type of " Exd II BT4 ".
The technical scheme that provides according to the utility model: the phase asynchronous outer rotor motor of said flame-proof type, comprise external rotor and internal stator, internal stator is coaxial to be arranged in the external rotor, is embedded with coil on the internal stator, is connected with lead-out wire on the coil; It is characterized in that: two end caps are installed on the both ends of the surface of said external rotor, and said internal stator center is run through and close-fitting has fixed axis, and stretch out from the center of two end caps at the fixed axis two ends, and two end caps are assemblied on the fixed axis through bearing respectively; Said fixed axis one end has the fixedly screwed hole and the plane of usefulness; The sidewall and the axial centre of the fixed axis other end offer through wires hole; Lead-out wire on the coil passes through the protective sleeve of through wires hole and fixed axis end, is filled with the explosion-proof filler of certain-length between lead-out wire outer wall and the through wires hole inwall.
As the further improvement of the utility model, said external rotor is the integrative-structure of being cast once more together by common cast-aluminum rotor and Birmasil shell.
As the further improvement of the utility model, the material of said Birmasil shell is a magnesium content less than 6% Birmasil.
As the further improvement of the utility model, said explosion-proof filler is an epoxy resin.
As the further improvement of the utility model, the seal length of said explosion-proof filler is at least 20mm.
As the further improvement of the utility model, have flame proof seam composition surface between the both ends of the surface of said external rotor and the end cap, have axial flameproof joint between said end cap and the fixed axis.
As the further improvement of the utility model, said flame proof seam composition surface by axial flame proof seam composition surface and radially flame proof seam composition surface form; Said external rotor end face is provided with along the recess of the vertical depression of external rotor axis direction; Said end cap seam plane is provided with the convex edge; Convex edge and recess tabling; Constitute described axial flame proof seam composition surface between convex edge outer wall and the recess inwall, constitute radially flame proof seam composition surface between external rotor end face and the end cap seam plane.
As the further improvement of the utility model, said end cap center is provided with the thickening part, offers on the thickening part to be used for fixing the axis hole that shaft extension goes out, and constitutes said axial flameproof joint between the inwall of axis hole and the outer wall of fixed axis.
As the further improvement of the utility model, the periphery wall of said external rotor is provided with the flange circle that is used to install draught fan impeller.
The utility model compared with prior art, advantage is: the utility model is simple for structure, good looking appearance; Lead-out wire on the coil waters through epoxy resin in the through wires hole that is enclosed in fixed axis, and its seal length meets relevant explosion-proof criteria requirement, has improved the sealing and the explosion insulation performance of the utility model; Has flame proof seam composition surface between the both ends of the surface of external rotor and the end cap; Has axial flameproof joint between end cap and the fixed axis; The surface roughness of these two flameproof joints, gap and composition surface width all meet relevant explosion-proof criteria requirement, effectively play explosion-proof; The phase asynchronous outer rotor motor of the flame-proof type of processing can use in explosive gas atmosphere, and explosive-proof grade reaches " Exd II BT4 ".
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the A-A cutaway view among Fig. 1.
Fig. 3 is the B-B cutaway view among Fig. 1.
Fig. 4 is the C-C cutaway view among Fig. 1.
Description of reference numerals: 1-external rotor, 2-internal stator, 3-hold-down screw, 4-end cap, 5-bearing, 6-fixed axis, the explosion-proof filler of 7-, 8-lead-out wire, 9-protective sleeve, 10-flange circle, the axial flameproof joint of 11-, 12-coil, 13-recess, 14-convex edge, 15-flame proof seam composition surface, the axial flame proof seam of 15a-composition surface, 15b-be flame proof seam composition surface, 16-cast-aluminum rotor, 17-Birmasil shell, 18-screwed hole, 19-plane radially.
Embodiment
Below in conjunction with concrete accompanying drawing the utility model is described further.
As shown in the figure, the phase asynchronous outer rotor motor of described flame-proof type mainly is made up of parts such as external rotor 1, internal stator 2, hold-down screw 3, end cap 4, bearing 5, fixed axis 6, explosion-proof filler 7, lead-out wire 8, protective sleeve 9 and coils 12.
Like Fig. 1 ~ shown in Figure 4, said internal stator 2 coaxial being arranged in the external rotor 1 are embedded with coil 12 on the internal stator 2, be connected with lead-out wire 8 on the coil 12; Through hold-down screw 3 is fastening two end caps 4 are installed on the both ends of the surface of said external rotor 1; Said internal stator 2 centers are run through and close-fitting fixed axis 6; Stretch out from the center of two end caps 4 at fixed axis 6 two ends; Two end caps 4 are assemblied on the fixed axis 6 through bearing 5 respectively, and external rotor 1 and connected two end caps 4 can rotate around internal stator 2; Said fixed axis 6 one ends have the fixedly screwed hole 18 and plane 19 of usefulness; The sidewall and the axial centre of fixed axis 6 other ends offer through wires hole; Lead-out wire 8 on the coil 12 passes through the protective sleeve 9 of through wires hole and fixed axis 6 ends, is filled with the explosion-proof filler 7 of certain-length between lead-out wire 8 outer walls and the through wires hole inwall.The said explosion-proof filler 7 preferred epoxy resin that adopt, explosion-proof filler 7 should water the enough seal lengths of envelope, should be 20mm at least, to play explosion insulation performance.
As shown in Figure 1, the said external rotor 1 of the utility model is the integrative-structure of being cast once more together by common cast-aluminum rotor 16 and Birmasil shell 17, and the material of Birmasil shell 17 preferably adopts magnesium content less than 6% Birmasil.
As shown in Figure 1, have flame proof seam composition surface 15 between the both ends of the surface of said external rotor 1 and the end cap 4, among the embodiment flame proof seam composition surface 15 of external rotor 1 motor by axial flame proof seam composition surface 15a and radially flame proof seam composition surface 15b form; Said external rotor 1 end face is provided with along the recess 13 of the vertical depression of external rotor 1 axis direction; Said end cap 4 seam planes are provided with convex edge 14; Convex edge 14 and recess 13 tablings; Constitute described axial flame proof seam composition surface 15a between convex edge 14 outer walls and recess 13 inwalls, constitute radially flame proof seam composition surface 15b between external rotor 1 end face and the end cap 4 seam planes.
As shown in Figure 1, have axial flameproof joint 11 between said end cap 4 and the fixed axis 6; Said end cap 4 centers are provided with thickening part 20, offer on the thickening part 20 to be used for fixing the axis hole that axle 6 stretches out, and constitute said axial flameproof joint 11 between the outer wall of the inwall of axis hole and fixed axis 6.
As shown in Figure 1, the periphery wall of said external rotor 1 is provided with the flange circle 10 that is used to install draught fan impeller.Certainly, external rotor 1 also can directly be cast straight barrel type, and metalworking goes out the structure that can be press-fitted with draught fan impeller on its periphery wall then.
Claims (9)
1. the phase asynchronous outer rotor motor of flame-proof type comprises external rotor (1) and internal stator (2), and internal stator (2) is coaxial to be arranged in the external rotor (1), is embedded with coil (12) on the internal stator (2), is connected with lead-out wire (8) on the coil (12); It is characterized in that: two end caps (4) are installed on the both ends of the surface of said external rotor (1); Said internal stator (2) center is run through and close-fitting has fixed axis (6); Stretch out from the center of two end caps (4) at fixed axis (6) two ends, and two end caps (4) are assemblied on the fixed axis (6) through bearing (5) respectively; Said fixed axis (6) one ends have the fixedly screwed hole of usefulness (18) and plane (19); The sidewall and the axial centre of fixed axis (6) other end offer through wires hole; Lead-out wire (8) on the coil (12) passes through the protective sleeve (9) of through wires hole and fixed axis (6) end, is filled with the explosion-proof filler (7) of certain-length between lead-out wire (8) outer wall and the through wires hole inwall.
2. the phase asynchronous outer rotor motor of flame-proof type as claimed in claim 1 is characterized in that: said external rotor (1) is the integrative-structure of being cast once more together by common cast-aluminum rotor (16) and Birmasil shell (17).
3. the phase asynchronous outer rotor motor of flame-proof type as claimed in claim 2 is characterized in that: the material of said Birmasil shell (17) is a magnesium content less than 6% Birmasil.
4. the phase asynchronous outer rotor motor of flame-proof type as claimed in claim 1 is characterized in that: said explosion-proof filler (7) is an epoxy resin.
5. the phase asynchronous outer rotor motor of flame-proof type as claimed in claim 1 is characterized in that: the seal length of said explosion-proof filler (7) is at least 20mm.
6. the phase asynchronous outer rotor motor of flame-proof type as claimed in claim 1; It is characterized in that: have flame proof seam composition surface (15) between the both ends of the surface of said external rotor (1) and the end cap (4), have axial flameproof joint (11) between said end cap (4) and the fixed axis (6).
7. the phase asynchronous outer rotor motor of flame-proof type as claimed in claim 6 is characterized in that: said flame proof seam composition surface (15) by axial flame proof seam composition surface (15a) and radially flame proof seam composition surface (15b) form; Said external rotor (1) end face is provided with along the recess (13) of the vertical depression of external rotor (1) axis direction; Said end cap (4) seam plane is provided with convex edge (14); Convex edge (14) and recess (13) tabling; Constitute described axial flame proof seam composition surface (15a) between convex edge (14) outer wall and recess (13) inwall, constitute radially flame proof seam composition surface (15b) between external rotor (1) end face and end cap (4) the seam plane.
8. the phase asynchronous outer rotor motor of flame-proof type as claimed in claim 6; It is characterized in that: said end cap (4) center is provided with thickening part (20); Offer on the thickening part (20) and be used for fixing the axis hole that axle (6) stretches out, formation said axial flameproof joint (11) between the outer wall of the inwall of axis hole and fixed axis (6).
9. the phase asynchronous outer rotor motor of flame-proof type as claimed in claim 1 is characterized in that: the periphery wall of said external rotor (1) is provided with the flange circle (10) that is used to install draught fan impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202228866U CN202127342U (en) | 2011-06-28 | 2011-06-28 | Explosion-proof three-phase asynchronous outer-rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202228866U CN202127342U (en) | 2011-06-28 | 2011-06-28 | Explosion-proof three-phase asynchronous outer-rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202127342U true CN202127342U (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202228866U Expired - Fee Related CN202127342U (en) | 2011-06-28 | 2011-06-28 | Explosion-proof three-phase asynchronous outer-rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202127342U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255454A (en) * | 2011-06-28 | 2011-11-23 | 无锡锡山特种风机有限公司 | Explosive-proof type three-phase asynchronous outer-rotor motor |
| CN103321959A (en) * | 2013-06-28 | 2013-09-25 | 周峰 | Fan |
| CN110445297A (en) * | 2019-07-29 | 2019-11-12 | 江苏金丰机电有限公司 | A kind of automobile-used high efficiency motor of electrical salf-walking being easily installed |
-
2011
- 2011-06-28 CN CN2011202228866U patent/CN202127342U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255454A (en) * | 2011-06-28 | 2011-11-23 | 无锡锡山特种风机有限公司 | Explosive-proof type three-phase asynchronous outer-rotor motor |
| CN102255454B (en) * | 2011-06-28 | 2013-04-03 | 无锡锡山特种风机有限公司 | Explosive-proof type three-phase asynchronous outer-rotor motor |
| CN103321959A (en) * | 2013-06-28 | 2013-09-25 | 周峰 | Fan |
| CN110445297A (en) * | 2019-07-29 | 2019-11-12 | 江苏金丰机电有限公司 | A kind of automobile-used high efficiency motor of electrical salf-walking being easily installed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20130628 |