CN202940683U - High-voltage dust explosion-proof three-phase asynchronous motor - Google Patents
High-voltage dust explosion-proof three-phase asynchronous motor Download PDFInfo
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- CN202940683U CN202940683U CN 201220661964 CN201220661964U CN202940683U CN 202940683 U CN202940683 U CN 202940683U CN 201220661964 CN201220661964 CN 201220661964 CN 201220661964 U CN201220661964 U CN 201220661964U CN 202940683 U CN202940683 U CN 202940683U
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Abstract
The utility model relates to a high-voltage dust explosion-proof three-phase asynchronous motor. The motor comprises a stator, a rotor, a bearing device, end covers, a high-voltage junction box, auxiliary junction boxes, an external fan and end shields. The stator includes a base and a winding-containing stator core; the rotor includes a rotor body, a motor shaft, a balancing ring and an internal fan; the base and the end covers are connected to form a sealed space in which the winding-containing stator core, the rotor body, the motor shaft, the balancing ring and the internal fan are arranged; two ends of the motor shaft are respectively installed in the middle parts of the two end covers through the bearing device, and one end of the motor shaft extends out of the corresponding end cover; the external fan is installed at the out-extended end of the motor shaft, and the end shields are covered outside the external fan; and the high-voltage junction box and the auxiliary junction boxes are arranged in the upper part of the base and are in sealed connection with the base. The utility model provides a high-voltage dust explosion-proof three-phase asynchronous motor which has good heat dissipation and protection functions.
Description
(1), technical field: the utility model relates to a kind of motor, particularly a kind of high pressure dust explosion protection type threephase asynchronous.
(2), background technology: the dust explosion protection motor refer to its shell in accordance with regulations condition manufacture and design, can stop dust to enter in motor casing, though or can not stop dust to enter fully, but its inlet does not hinder the motor safe operation, and the accumulation of inner dust is difficult for producing lights danger, also can not cause the motor of explosive dust mixture blast on every side during use.Existing dust explosion protection motor usually is used in coal industry etc. and contains in the explosive atmosphere of dust, willow catkins flying in the air, coal is the main energy sources of China, coal mining and chemical industry refine and relate to a lot of dust explosion environment, and the power of using under this operating mode need to satisfy requirement of explosion proof.
The key technology of existing high pressure dust explosion protection type threephase asynchronous is to control case surface temperature and the protection level that improves shell.Because existing high pressure dust explosion protection type threephase asynchronous capacity is very large, so its caloric value is also very large, and this has increased great difficulty for the skin temperature of controlling motor; In addition, the volume of existing high pressure dust explosion protection type threephase asynchronous is also larger, and this has brought very large challenge for the shell protection grade that improves motor.This just need to carry out the science design to motor could guarantee motor in higher-wattage grade situation, and the temperature that can control case surface can make again shell reach 6 grades of dustproof requirements.
(3), utility model content:
The technical problems to be solved in the utility model is: not enough for prior art, a kind of thermal diffusivity and protective high pressure dust explosion protection preferably type threephase asynchronous is provided.
The technical solution of the utility model:
a kind of high pressure dust explosion protection type threephase asynchronous, contain stator, rotor, bearing arrangement, end cap, the high-voltage connection box, assistant junction box, external fan and end shield, stator contains organic block and winding stator core is arranged, rotor contains rotor block, the axle of motor, gimbal and internal fan, support and end cap are joined together to form a seal cavity, have winding stator core be fixedly installed on the sealing space around, rotor block is arranged on the middle part in sealing space, rotor block is arranged on the axle of motor, gimbal and internal fan also are arranged in the sealing space and are arranged on an end of the axle of motor, the two ends of the axle of motor are arranged on respectively the middle part of two end caps by bearing arrangement, one end of the axle of motor stretches out from end cap, external fan is arranged on an end of the axle of this motor that stretches out, end shield covers on the outside of external fan, high-voltage connection box and assistant junction box are arranged on the top of support and are tightly connected with support, the outer surface of support is provided with fin, the high-voltage connection box contains the first terminal block housings, the first connector cover and the first cable outlet mouth, be provided with the first binding post in the first terminal block housings, the first cable is drawn from the first cable outlet mouth, the first connector cover is sealedly connected on the first terminal block housings by the first lid sealing gasket, the first terminal block housings is tightly connected by the first support sealing gasket and support, the first cable outlet mouth place is provided with the first sealing ring, the first wiring bucket and the first gland head, assistant junction box contains the second terminal block housings, the second connector cover, measuring temperature of bearing line entrance, stator thermometric line entrance and the second cable outlet mouth, be provided with the second binding post in the second terminal block housings, the measuring temperature of bearing line is from the porch introducing of measuring temperature of bearing line, stator thermometric line is from the porch introducing of stator thermometric line, the second cable is drawn from the second cable outlet mouth, the second connector cover is sealedly connected on the second terminal block housings by the second lid sealing gasket, the second terminal block housings is tightly connected by the second support sealing gasket and support, the second cable outlet mouth place is provided with the second sealing ring, the second wiring bucket and the second gland head, bearing arrangement contains bearing end cover, bearing, internal bearing cover, disc, oil fuel tube, oil exit pipe and bearing protector, bearing seal is arranged on the central authorities of end cap, the shaft seal of motor is arranged in bearing, bearing end cover and internal bearing cover lay respectively at the outside and the inboard of bearing, bearing end cover and internal bearing cover respectively with End cover for motor in, outer both sides are tightly connected, bearing protector sealing shroud is contained on the axle of motor, and the sealing of bearing protector is arranged on the outer surface of bearing end cover, disc also is sleeved on the axle of motor, disc is between bearing end cover and bearing, contain one between disc and bearing end cover and get rid of oil-gap, oil fuel tube and oil exit pipe are separately positioned on the upper and lower of bearing end cover, oil fuel tube and oil exit pipe inner with get rid of oil-gap and be communicated with.
The first cable outlet mouth and the second cable outlet mouth place have adopted the double protection design; Ground floor coordinates with cable by sealing ring, forms the first protection; The second layer coordinates with cable by gland head, forms the second protection.
Joint face between the first connector cover and the first terminal block housings is the joint face with positioning spigot, and the joint face between the first terminal block housings and support also is the joint face with positioning spigot; Joint face between the second connector cover and the second terminal block housings is the joint face with positioning spigot, and the joint face between the second terminal block housings and support also is the joint face with positioning spigot.Make like this terminal box improve again degree of protection when satisfying requirement of explosion proof.
The material of support is steel plate, and this lays a good foundation by the seam Explosion-proof Design for motor body.
Distance between fin is as far as possible close, and the distance between each fin root is not more than 22.5mm, can improve area of dissipation like this, controls the temperature of the shell of motor.
The first lid sealing gasket and the first support sealing gasket are the refractory seals pad; The second lid sealing gasket and the second support sealing gasket also are the refractory seals pad.
Measuring temperature of bearing line porch is provided with measuring temperature of bearing line pressure piece, and the measuring temperature of bearing line is sealed in measuring temperature of bearing line pressure piece by certainly dried glue; Stator thermometric line porch is provided with stator thermometric line pressure piece, and stator thermometric line is sealed in stator thermometric line pressure piece by certainly dried glue.
Be that the XH epoxy is from dried glue from dried glue; Assistant junction box cavity and the isolation of motor body cavity are had a style of one's own.
The width that gets rid of oil-gap is 2mm.
The bearing protector embeds on the outer surface of bearing end cover.The bearing protector has improved motor reel and has connected the degree of protection of part, and then has improved the degree of protection of whole motor.
Be tightly connected between the axle of internal bearing cover and motor.The explosion-proof composition surface that forms between the axle of internal bearing cover and motor is except satisfying GB12476.1-2000, flameproof gap is also pressed the GB3836-2010 design, this explosion-proof composition surface does not have on GB12476.1-2000, be the important breakthrough to this standard, solved after bearing arrangement band injection-discharge oil device how explosion-proof problem.
This bearing arrangement contains three road safeguard procedures: the bearing protector coordinates with the axle of motor, forms first dust seal composition surface; Get rid of oil-gap and form second dust seal composition surface; Bearing coordinates with the axle of motor, forms dustproof composition surface, the 3rd road.
The beneficial effects of the utility model:
1. the design accuracy of support of the present utility model, end cap, high-voltage connection box, assistant junction box and bearing arrangement is higher, thereby makes barrier propterty of the present utility model better, and motor integral protection grade can reach IP66; And the outer surface of support is provided with fin, can effectively the heat in motor be exhaled, and has guaranteed the normal operation of motor.
2. between connector cover of the present utility model and terminal block housings, all adopted sealing gasket to add connected mode with positioning spigot between the support of terminal block housings and motor, measuring temperature of bearing line entrance and stator thermometric line porch employing briquetting and the sealing of certainly dried glue, cable outlet mouth place adopts sealing ring, wiring bucket and gland head to reach double protection, therefore, barrier propterty of the present utility model is better.
3. the utility model adopts on the basis that bearing end cover and internal bearing cover protect bearing existing; having increased bearing protector, disc, oil fuel tube and oil exit pipe protects; and also be tightly connected between the axle of internal bearing cover and motor, make like this barrier propterty of bearing arrangement better.
(4), description of drawings:
Fig. 1 is the structural representation of high pressure dust explosion protection type threephase asynchronous;
Fig. 2 is the left TV structure schematic diagram of Fig. 1;
Fig. 3 is the structure for amplifying schematic diagram of high-voltage connection box;
Fig. 4 is the structure for amplifying schematic diagram of assistant junction box;
Fig. 5 is the structure for amplifying schematic diagram of bearing arrangement.
(5), embodiment:
referring to Fig. 1～Fig. 5, in figure, high pressure dust explosion protection type threephase asynchronous contains stator, rotor, bearing arrangement, end cap 2, high-voltage connection box 4, assistant junction box 5, external fan and end shield, stator contains organic block 1 and winding stator core is arranged, rotor contains rotor block, the axle 7 of motor, gimbal and internal fan, support 1 and end cap 2 are joined together to form a seal cavity, have winding stator core be fixedly installed on the sealing space around, rotor block is arranged on the middle part in sealing space, rotor block is arranged on the axle 7 of motor, gimbal and internal fan also are arranged in the sealing space and are arranged on an end of the axle 7 of motor, the two ends of the axle 7 of motor are arranged on respectively the middle part of two end caps 2 by bearing arrangement, one end of the axle 7 of motor stretches out from end cap 2, external fan is arranged on an end of the axle 7 of this motor that stretches out, end shield covers on the outside of external fan, high-voltage connection box 4 and assistant junction box 5 are arranged on the top of support 1 and are tightly connected with support 1, the outer surface of support 1 is provided with fin 3, high-voltage connection box 4 contains the first terminal block housings 31, the first connector cover 32 and the first cable outlet mouth 311, be provided with the first binding post 310 in the first terminal block housings 31, the first cable 37 is drawn from the first cable outlet mouth 311, the first connector cover 32 is sealedly connected on the first terminal block housings 31 by the first lid sealing gasket 33, the first terminal block housings 31 is tightly connected by the first support sealing gasket 34 and support 1, and the first cable outlet mouth 311 places are provided with the first sealing ring 38, the first wiring bucket 39 and the first gland head 36, assistant junction box 5 contains the second terminal block housings 41, the second connector cover 42, measuring temperature of bearing line entrance 46, stator thermometric line entrance 47 and the second cable outlet mouth 48, be provided with the second binding post 49 in the second terminal block housings 41, measuring temperature of bearing line 410 is introduced from measuring temperature of bearing line entrance 46, stator thermometric line 413 is introduced from stator thermometric line entrance 47, the second cable 416 is drawn from the second cable outlet mouth 48, the second connector cover 42 is sealedly connected on the second terminal block housings 41 by the second lid sealing gasket 43, the second terminal block housings 41 is tightly connected with support 1 by the second support sealing gasket 44, the second cable outlet mouth 48 places are provided with the second sealing ring 417, the second wiring bucket 418 and the second gland head 419, bearing arrangement contains bearing end cover 6, bearing 52, internal bearing cover 55, disc 57, oil fuel tube 8, oil exit pipe 9 and bearing protector 56, bearing 52 sealings are arranged on the central authorities of end cap 2, axle 7 sealings of motor are arranged in bearing 52, bearing end cover 6 and internal bearing cover 55 lay respectively at the outside and the inboard of bearing 52, bearing end cover 6 and internal bearing cover 55 respectively with End cover for motor 2 in, outer both sides are tightly connected, bearing protector 56 sealing shrouds are contained on the axle 7 of motor, and 56 sealings of bearing protector are arranged on the outer surface of bearing end cover 6, disc 57 also is sleeved on the axle 7 of motor, disc 57 is between bearing end cover 6 and bearing 52, contain one between disc 57 and bearing end cover 6 and get rid of oil-gap 58, oil fuel tube 8 and oil exit pipe 9 are separately positioned on the upper and lower of bearing end cover 6, oil fuel tube 8 and oil exit pipe 9 inner with get rid of oil-gap 58 and be communicated with.
The first cable outlet mouth 311 and the second cable outlet mouth 48 places have adopted the double protection design; Ground floor coordinates with cable by sealing ring, forms the first protection; The second layer coordinates with cable by gland head, forms the second protection.
Joint face between the first connector cover 32 and the first terminal block housings 31 is the joint face with positioning spigot, and the joint face between the first terminal block housings 31 and support 1 also is the joint face with positioning spigot; Joint face between the second connector cover 42 and the second terminal block housings 41 is the joint face with positioning spigot, and the joint face between the second terminal block housings 41 and support 1 also is the joint face with positioning spigot.Make like this terminal box improve again degree of protection when satisfying requirement of explosion proof.
The material of support 1 is steel plate, and this lays a good foundation by the seam Explosion-proof Design for motor body.
Distance between fin 3 is as far as possible close, and the distance between each fin 3 roots is not more than 22.5mm, can improve area of dissipation like this, controls the temperature of the shell of motor.
The first lid sealing gasket 33 and the first support sealing gasket 34 are the refractory seals pad; The second lid sealing gasket 43 and the second support sealing gasket 44 also are the refractory seals pad.
Measuring temperature of bearing line entrance 46 places are provided with measuring temperature of bearing line pressure piece 411, and measuring temperature of bearing line 410 is sealed in measuring temperature of bearing line pressure piece 411 by certainly dried glue 412; Stator thermometric line entrance 47 places are provided with stator thermometric line pressure piece 414, and stator thermometric line 413 is sealed in stator thermometric line pressure piece 414 by certainly dried glue 415.
Be that the XH epoxy is from dried glue from dried glue 412,415; Assistant junction box cavity and the isolation of motor body cavity are had a style of one's own.
The width that gets rid of oil-gap 58 is 2mm.
Be tightly connected between the axle 7 of internal bearing cover 55 and motor.The explosion-proof composition surface that forms between the axle 7 of internal bearing cover 55 and motor is except satisfying GB12476.1-2000, flameproof gap is also pressed the GB3836-2010 design, this explosion-proof composition surface does not have on GB12476.1-2000, be the important breakthrough to this standard, solved after bearing arrangement band injection-discharge oil device how explosion-proof problem.
This bearing arrangement contains three road safeguard procedures: bearing protector 56 coordinates with the axle 7 of motor, forms first dust seal composition surface; Get rid of oil-gap 58 and form second dust seal composition surface; Bearing 52 coordinates with the axle 7 of motor, forms dustproof composition surface, the 3rd road.
Claims (9)
1. high pressure dust explosion protection type threephase asynchronous, contain stator, rotor, bearing arrangement, end cap, the high-voltage connection box, assistant junction box, external fan and end shield, stator contains organic block and winding stator core is arranged, rotor contains rotor block, the axle of motor, gimbal and internal fan, support and end cap are joined together to form a seal cavity, have winding stator core be fixedly installed on the sealing space around, rotor block is arranged on the middle part in sealing space, rotor block is arranged on the axle of motor, gimbal and internal fan also are arranged in the sealing space and are arranged on an end of the axle of motor, the two ends of the axle of motor are arranged on respectively the middle part of two end caps by bearing arrangement, one end of the axle of motor stretches out from end cap, external fan is arranged on an end of the axle of this motor that stretches out, end shield covers on the outside of external fan, high-voltage connection box and assistant junction box are arranged on the top of support and are tightly connected with support, the outer surface of support is provided with fin, it is characterized in that: the high-voltage connection box contains the first terminal block housings, the first connector cover and the first cable outlet mouth, be provided with the first binding post in the first terminal block housings, the first cable is drawn from the first cable outlet mouth, the first connector cover is sealedly connected on the first terminal block housings by the first lid sealing gasket, the first terminal block housings is tightly connected by the first support sealing gasket and support, the first cable outlet mouth place is provided with the first sealing ring, the first wiring bucket and the first gland head, assistant junction box contains the second terminal block housings, the second connector cover, measuring temperature of bearing line entrance, stator thermometric line entrance and the second cable outlet mouth, be provided with the second binding post in the second terminal block housings, the measuring temperature of bearing line is from the porch introducing of measuring temperature of bearing line, stator thermometric line is from the porch introducing of stator thermometric line, the second cable is drawn from the second cable outlet mouth, the second connector cover is sealedly connected on the second terminal block housings by the second lid sealing gasket, the second terminal block housings is tightly connected by the second support sealing gasket and support, the second cable outlet mouth place is provided with the second sealing ring, the second wiring bucket and the second gland head, bearing arrangement contains bearing end cover, bearing, internal bearing cover, disc, oil fuel tube, oil exit pipe and bearing protector, bearing seal is arranged on the central authorities of end cap, the shaft seal of motor is arranged in bearing, bearing end cover and internal bearing cover lay respectively at the outside and the inboard of bearing, bearing end cover and internal bearing cover respectively with End cover for motor in, outer both sides are tightly connected, bearing protector sealing shroud is contained on the axle of motor, and the sealing of bearing protector is arranged on the outer surface of bearing end cover, disc also is sleeved on the axle of motor, disc is between bearing end cover and bearing, contain one between disc and bearing end cover and get rid of oil-gap, oil fuel tube and oil exit pipe are separately positioned on the upper and lower of bearing end cover, oil fuel tube and oil exit pipe inner with get rid of oil-gap and be communicated with.
2. high pressure dust explosion protection type threephase asynchronous according to claim 1, it is characterized in that: the joint face between described the first connector cover and the first terminal block housings is the joint face with positioning spigot, and the joint face between the first terminal block housings and support also is the joint face with positioning spigot; Joint face between the second connector cover and the second terminal block housings is the joint face with positioning spigot, and the joint face between the second terminal block housings and support also is the joint face with positioning spigot.
3. high pressure dust explosion protection type threephase asynchronous according to claim 1, it is characterized in that: the material of described support is steel plate.
4. high pressure dust explosion protection type threephase asynchronous according to claim 1, it is characterized in that: the distance between described each fin root is not more than 22.5mm.
5. high pressure dust explosion protection type threephase asynchronous according to claim 1, it is characterized in that: described the first lid sealing gasket and the first support sealing gasket are the refractory seals pad; The second lid sealing gasket and the second support sealing gasket also are the refractory seals pad.
6. high pressure dust explosion protection type threephase asynchronous according to claim 1 is characterized in that: described measuring temperature of bearing line porch is provided with measuring temperature of bearing line pressure piece, and the measuring temperature of bearing line is sealed in measuring temperature of bearing line pressure piece by certainly dried glue; Stator thermometric line porch is provided with stator thermometric line pressure piece, and stator thermometric line is sealed in stator thermometric line pressure piece by certainly dried glue.
7. high pressure dust explosion protection type threephase asynchronous according to claim 1, it is characterized in that: the described width that gets rid of oil-gap is 2mm.
8. high pressure dust explosion protection type threephase asynchronous according to claim 1, is characterized in that: on the outer surface of described bearing protector embedding bearing end cover.
9. high pressure dust explosion protection type threephase asynchronous according to claim 1, is characterized in that: be tightly connected between the axle of described internal bearing cover and motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661964 CN202940683U (en) | 2012-12-05 | 2012-12-05 | High-voltage dust explosion-proof three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661964 CN202940683U (en) | 2012-12-05 | 2012-12-05 | High-voltage dust explosion-proof three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940683U true CN202940683U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220661964 Expired - Fee Related CN202940683U (en) | 2012-12-05 | 2012-12-05 | High-voltage dust explosion-proof three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940683U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072869A (en) * | 2015-07-15 | 2015-11-18 | 芜湖仅一机械有限公司 | Heat dissipation casing |
| CN106533022A (en) * | 2016-12-29 | 2017-03-22 | 山东颜山泵业有限公司 | Horizontal flame-proof type electric motor for high-temperature non-leakage pump |
| CN106972675A (en) * | 2017-05-09 | 2017-07-21 | 泰州市姜堰德力电机有限公司 | Waterproof machine |
| 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 |
-
2012
- 2012-12-05 CN CN 201220661964 patent/CN202940683U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072869A (en) * | 2015-07-15 | 2015-11-18 | 芜湖仅一机械有限公司 | Heat dissipation casing |
| CN106533022A (en) * | 2016-12-29 | 2017-03-22 | 山东颜山泵业有限公司 | Horizontal flame-proof type electric motor for high-temperature non-leakage pump |
| CN106533022B (en) * | 2016-12-29 | 2023-05-30 | 山东颜山泵业有限公司 | Horizontal explosion-proof motor for high-temperature leak-free pump |
| CN106972675A (en) * | 2017-05-09 | 2017-07-21 | 泰州市姜堰德力电机有限公司 | Waterproof machine |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |