CN201717708U - Explosion-proof motor - Google Patents
Explosion-proof motor Download PDFInfo
- Publication number
- CN201717708U CN201717708U CN2010202597175U CN201020259717U CN201717708U CN 201717708 U CN201717708 U CN 201717708U CN 2010202597175 U CN2010202597175 U CN 2010202597175U CN 201020259717 U CN201020259717 U CN 201020259717U CN 201717708 U CN201717708 U CN 201717708U
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- shaft
- seal groove
- flame
- rotating shaft
- electric motor
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Abstract
The utility model relates to an explosion-proof motor, which is mainly characterized in that an outer end face of an outer cover is provided with a shaft end sealing groove, in which are disposed a shaft end sealing ring and a protective cover which are connected with a rotating shaft The motor enables to enhance the dynamic protection ability, to reduce the friction loss and to achieve the aim of high protection and low loss at the part where a shaft passes. Meanwhile, a Y-delta transform can also be satisfied, achieving the effect that the same motor can adapts to different voltages and frequencies.
Description
Technical field
The utility model belongs to technical field of motors, is a kind of flame-proof electric motor.
Background technology
In technique known, flame-proof electric motor normally between end cap and the housing, between terminal box and the motor field frame and the binding site of junction box seat and connector cover adopt flame-proof type composition surface structure, to reach the purpose of flame proof.There is major defect in these motor: the one, and the sealing grade is low, only can reach the IP55 level, can not adapt to the requirement of explosion proof under the adverse circumstances, especially shaft extension end enclosing cover and end cap connecting portion and rotor shaft and enclosing cover junction surface are subjected to the intrusion of dust and water easily, influence the normal operation of motor; The 2nd, the mode of connection of main electrical scheme box is single, a motor can only use in the electrical network of a kind of voltage and frequency, can not adapt to the diversified power supply grid requirement of electricity consumption condition, and the thermometric of motor and the heating wiring all be arranged on outside the main electrical scheme box, cause the complicated of motor overall structure and explosive-proof sealed structure.
The utility model content
The purpose of this utility model provides a kind of sealing grade height, and flame proof is effective, and vibrating noise is low, and can adapt to the flame-proof electric motor of different voltages and frequency operating position needs.
Realize that the technical scheme that the purpose of this utility model is taked is: this motor comprises rotating shaft, housing, the main electrical scheme box, end cap, rotor, stator and enclosing cover, enclosing cover is installed on the shaft extension end of rotating shaft, be connected by bolt with end cap, wherein, the outer face of enclosing cover is provided with the shaft end seal groove, be provided with in this shaft end seal groove with rotating shaft and install shaft end seal circle and the protective cover that is connected, enclosing cover and end cap jointing end face are provided with annular seal groove, sealing ring is housed in the seal groove, bolt hole position, end cap outer face is provided with bolt seal groove and bolt seal circle, terminal block equipped in the main electrical scheme box is provided with 10 binding posts, wherein 6 binding posts are connected with the motor lead wire, 2 binding posts are connected with the temperature measurement signal transmission line, and other 2 binding posts are connected with the heating lead-in wire.
Described shaft end seal circle and rotating shaft interference fit, and rotate with rotating shaft.
The excircle position of described shaft end seal groove is provided with the waterproof flange.
The diameter of described protective cover is greater than the external diameter of waterproof flange.
Have four groups of fin that be arranged in parallel respectively on the outer circle wall of described housing, eight-sided formation is adopted in the gabarit cross section of fin.
According to the flame-proof electric motor that such scheme is made, its beneficial effect is:
1) by the axial plane sealing of shaft extension end and the sealing of enclosing cover and end cap junction, not only water can be got rid of, increase dynamic protective capacities, also can reduce friction loss, reach the low-loss purpose of the high protection of perforation place, make degree of protection reach the IP66 degree of protection simultaneously.
2) by improvement to the main electrical scheme box mode of connection, can satisfy the conversion of Y-Δ simultaneously, under the electrical network service condition, it is that 400V, rated frequency are the electrical network use of 50Hz that same motor not only can satisfy rated voltage, and can not use at 400V at 60Hz and voltage yet, reach the effect that same motor can adapt to the use of several different voltages and frequency, can be suitable for different power supply grids.
3) the electric machine casing fin adopts four groups to be arranged in parallel respectively, and eight-sided formation is all adopted in the cross section of its gabarit, and not only good looking appearance also can reach the effect that increases protection reduction vibration noise.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the partial structurtes enlarged diagram of embodiment one I among Fig. 1;
Fig. 4 is the partial structurtes enlarged diagram of embodiment two I among Fig. 1.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, flame-proof electric motor of the present utility model comprises rotating shaft 1, housing 2, main electrical scheme box 3, end cap 4, rotor 6, stator 5 and enclosing cover 7, and wherein, enclosing cover 7 is installed on the shaft extension end of rotating shaft 1, and is connected by bolt with end cap 4.On enclosing cover 7 and end face that end cap 4 engages, be provided with annular seal groove 18, sealing ring 19 is housed in the seal groove 18, bolt hole position, end cap 4 outer face is provided with bolt seal groove 16 and bolt seal circle 17, bolt seal circle 17 is positioned at bolt seal groove 16, and install with bolt and to be connected, can prevent that dust and sewage from entering in the motor along bolt hole.Be provided with shaft end seal groove 15 in the outer face of enclosing cover 7, be provided with in this shaft end seal groove 15 with rotating shaft 1 and install shaft end seal circle 13 and the protective cover 14 that is connected, shaft end seal circle 13 and rotating shaft 1 interference fit, and with rotating shaft 1 rotation.When motor adopts the vertical installation that shaft extension makes progress (referring to the embodiment two of Fig. 4), can waterproof flange 20 be set at the excircle position of shaft end seal groove 15, and the diameter of increasing protective cover 14, make it external diameter greater than waterproof flange 20, protective cover 14 forms the protection of bent road with waterproof flange 20, simultaneously the axial plane sealing lip of shaft end seal circle 13 is attached on the smooth inwall of shaft end seal groove 15, can realize effective seal under the expulsion pressure of water jets under high pressure.The centrifugal force that shaft end seal circle 13 and protective cover 14 produce when rotating with rotating shaft 1 not only can get rid of water, increases dynamic protective capacities, also can reduce friction loss, reaches the low-loss purpose of the high protection of perforation place, and makes degree of protection reach the IP66 degree of protection.Be provided with 10 binding posts on the terminal block 11 that is equipped with in main electrical scheme box 3, wherein 6 binding posts 10 are connected with the motor lead wire, and 2 binding posts 9 are connected with the temperature measurement signal transmission line, and other 2 binding posts 8 are connected with the heating lead-in wire.This main electrical scheme box 3 can satisfy the conversion of Y-Δ simultaneously, under the electrical network service condition, it is that 400V, rated frequency are the electrical network use of 50Hz that same motor not only can satisfy rated voltage, and can not use at 400V at 60Hz and voltage yet, reach the effect that same motor can adapt to the use of several different voltages and frequency, can be suitable for different power supply grids.Have four groups of fin that be arranged in parallel respectively 12 on the outer circle wall of housing 2, the gabarit cross section of fin 12 is adopted and is eight-sided formation, can reach the effect that increases protection, reduces vibration noise.
Claims (5)
1. flame-proof electric motor, this motor comprises rotating shaft, housing, the main electrical scheme box, end cap, rotor, stator and enclosing cover, enclosing cover is installed on the shaft extension end of rotating shaft, be connected by bolt with end cap, it is characterized in that: the outer face of enclosing cover is provided with the shaft end seal groove, be provided with in this shaft end seal groove with rotating shaft and install shaft end seal circle and the protective cover that is connected, enclosing cover and end cap jointing end face are provided with annular seal groove, sealing ring is housed in the seal groove, bolt hole position, end cap outer face is provided with bolt seal groove and bolt seal circle, terminal block equipped in the main electrical scheme box is provided with 10 binding posts, wherein 6 binding posts are connected with the motor lead wire, 2 binding posts are connected with the temperature measurement signal transmission line, and other 2 binding posts are connected with the heating lead-in wire.
2. flame-proof electric motor according to claim 1 is characterized in that: described shaft end seal circle and rotating shaft interference fit, and rotate with rotating shaft.
3. flame-proof electric motor according to claim 1 is characterized in that: the excircle position of described shaft end seal groove is provided with the waterproof flange.
4. flame-proof electric motor according to claim 1 is characterized in that: the diameter of described protective cover is greater than the external diameter of waterproof flange.
5. flame-proof electric motor according to claim 1 is characterized in that: have four groups of fin that be arranged in parallel respectively on the outer circle wall of described housing, eight-sided formation is adopted in the gabarit cross section of fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202597175U CN201717708U (en) | 2010-07-15 | 2010-07-15 | Explosion-proof motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202597175U CN201717708U (en) | 2010-07-15 | 2010-07-15 | Explosion-proof motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717708U true CN201717708U (en) | 2011-01-19 |
Family
ID=43463714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202597175U Expired - Fee Related CN201717708U (en) | 2010-07-15 | 2010-07-15 | Explosion-proof motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717708U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290941A (en) * | 2011-09-02 | 2011-12-21 | 南阳防爆集团股份有限公司 | High-pressure explosion-proof type three-phase asynchronous motor |
| CN103475144A (en) * | 2013-09-27 | 2013-12-25 | 无锡锡山安达防爆电气设备有限公司 | Explosion-proof motor outer shell structure capable of rapidly dissipating heat |
| CN109256904A (en) * | 2018-11-12 | 2019-01-22 | 中车永济电机有限公司 | Mine trolley locomotive driving motor |
| CN114337053A (en) * | 2021-12-27 | 2022-04-12 | 佳木斯电机股份有限公司 | Dual explosion-proof high protection level's motor |
-
2010
- 2010-07-15 CN CN2010202597175U patent/CN201717708U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290941A (en) * | 2011-09-02 | 2011-12-21 | 南阳防爆集团股份有限公司 | High-pressure explosion-proof type three-phase asynchronous motor |
| CN103475144A (en) * | 2013-09-27 | 2013-12-25 | 无锡锡山安达防爆电气设备有限公司 | Explosion-proof motor outer shell structure capable of rapidly dissipating heat |
| CN109256904A (en) * | 2018-11-12 | 2019-01-22 | 中车永济电机有限公司 | Mine trolley locomotive driving motor |
| CN114337053A (en) * | 2021-12-27 | 2022-04-12 | 佳木斯电机股份有限公司 | Dual explosion-proof high protection level's motor |
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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: 20110119 Termination date: 20130715 |