CN102082479B - Flameproof face structure for explosion-proof motor - Google Patents
Flameproof face structure for explosion-proof motor Download PDFInfo
- Publication number
- CN102082479B CN102082479B CN2010106069248A CN201010606924A CN102082479B CN 102082479 B CN102082479 B CN 102082479B CN 2010106069248 A CN2010106069248 A CN 2010106069248A CN 201010606924 A CN201010606924 A CN 201010606924A CN 102082479 B CN102082479 B CN 102082479B
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- Prior art keywords
- annular groove
- rear end
- wire hole
- proof motor
- rotating shaft
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- 238000007789 sealing Methods 0.000 claims abstract description 43
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 22
- 229920001195 polyisoprene Polymers 0.000 claims description 22
- 238000004880 explosion Methods 0.000 claims description 21
- 239000000565 sealant Substances 0.000 claims description 13
- 230000013011 mating Effects 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009795 derivation Methods 0.000 claims 2
- 230000001012 protector Effects 0.000 description 4
- 239000002360 explosive Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an explosion-proof motor, and provides a flameproof face structure for an explosion-proof motor with a simple structure, good sealing performance and high safety. The flameproof face structure solves the technical problems of short service life and low safety of the explosion-proof motor caused by bad sealing performance of a flameproof face of an explosion-proof motor existing in the prior art. The flameproof face structure comprises a rear end cover and a front end cover, and a sealed accommodating cavity is formed by joint enclosure of the front end cover and the rear end cover; a motor stator and a motor rotor are arranged in the sealed accommodating cavity; one end of the rotating shaft of the motor rotor is rotatably connected on the rear end cover, and the other end of the rotating shaft extends out of the front end cover; a first annular groove is arranged on a matching surface of the rear end cover and the front end cover; seal gum is filled in the first annular groove; a second annular groove is arranged on the matching surface of the rotating shaft and the front end cover; and a ripple seal cartridge is embedded in the second annular groove.
Description
Technical field
The present invention relates to a kind of fire-proof motor, relate in particular to a kind of simple in structure, good airproof performance, the explosion suppresion surface structure of safe fire-proof motor.
Background technology
Fire-proof motor be a kind of can be at the employed a kind of motor of inflammable and explosive factory; It is widely used in industries such as colliery, petroleum gas, petrochemical industry and chemical industry, compares with common electric machine, and the design feature of fire-proof motor is that matching parts such as the forward and backward end cap of motor, terminal box are arranged to explosion suppresion surface; The mating surface of explosion suppresion surface and common electric machine is compared and is required to have higher sealing; People are employed in usually and are coated with fluid sealant on the explosion suppresion surface or add methods such as rubber gasket for this reason, but after use after a while, explosion suppresion surface is coated with fluid sealant and often very easily comes off; Cause motor explosion suppresion surface sealing to reduce thus; Especially rubber gasket wear extent after use after a while increases, and causes the sealing of the relevant explosion suppresion surface of motor further to reduce, and directly reduces the useful life and the safety in utilization of fire-proof motor.
Chinese patent discloses a kind of fire-proof motor (CN2842851Y); It comprises motor, temperature protector; Temperature protector is serially connected with a temperature controller, and the lead-out wire of motor and cable segment connector are equipped with one and water the sealing cover shell, and watering to pour into a mould to be full of in the sealing cover shell has epoxy resin.This device is through a temperature protector that links to each other with temperature controller is set; And through unusual conditions such as electric arc in the temperature protector induction machine and spark and in time disable motor improve fail safe; And casting epoxy resin fixes the motor lead-out wire in case; To avoid it to light explosive mixture on every side, though said structure and method can improve and improve the fail safe of motor to a certain extent, complex structure, cost height; And the mating face seal property of its machine shaft and forward and backward end cap is poor, so safety in utilization is poor.
Summary of the invention
The present invention has mainly provided a kind of simple in structure; Good airproof performance, the explosion suppresion surface structure of safe fire-proof motor, the sealing of explosion suppresion surface that has solved the fire-proof motor that exists in the prior art is poor; Cause the useful life of fire-proof motor short thus, the low technical problem that waits of fail safe.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals: the explosion suppresion surface structure of fire-proof motor; Comprise that rear end cap reaches the front end housing that synthesizes airtight container cavity with the rear end cap one common peripheral; In said airtight container cavity, be provided with motor stator and rotor, rotating shaft one end of said rotor is rotatably connected on the rear end cap, and the other end of rotating shaft extends to outside the front end housing; On the mating surface of said rear end cap and front end housing, be provided with first annular groove; In said first annular groove, be filled with fluid sealant, on the mating surface of said rotating shaft and front end housing, be provided with second annular groove, in said second annular groove, be embedded with the ripple sealing shroud.Through first annular groove is set on the mating surface of forward and backward end cap, and in first annular groove filling with sealant, can fluid sealant be fixed in first annular groove, remain sealing thereby make between forward and backward end cap; Through second annular groove is set on the mating surface of rotating shaft and front end housing, and in the rotating shaft corresponding with second annular groove suit ripple sealing shroud, the ripple sealing shroud is inlaid in again in second annular groove; Keep sealing between rotating shaft and front end housing thereby make, the ripple sealing shroud makes and keeps multi-sealed between rotating shaft and front end housing, and has effectively increased the elasticity of sealing shroud; Compensated the influence of scale error to greatest extent, it not only relies on the elasticity of sealing shroud material self, the elasticity and the intensity effect that also have ripple struction to produce; Therefore improved sealing; Thereby prolonged the useful life of fire-proof motor, simple in structure, safe.
Rear end cap can ring set in the outside of front end housing; As preferably; Said rear end cap comprises circular bottom plate and with being located in the annular case on the circular bottom plate base plate, said circular bottom plate is that integral type is connected with annular case, and said front end housing is that the bottom surface is provided with the columnar structured of axis hole; Said second annular groove is located on the inner ring surface of axis hole; In the end of annular case, and the annular boss on the end face of said annular case and the front end housing internal face offsets the openend of said front end housing towards annular case and ring set, and said first annular groove is located at the outer ring surface end of annular case.The airtight container cavity that forward and backward end cap connects together and constitutes, the version of forward and backward relatively end cap end face butt has increased the mating surface of the two, improves sealing; First annular groove is located at the outer ring surface end of annular case, has increased fluid sealant and the contact area of the two, improve sealing.
As more preferably, the said first annular groove introversive outer step trough that has several steps that successively decrease of serving as reasons.The step trough of step can increase the quantity of fluid sealant, has also increased the contact area of fluid sealant and forward and backward end cap simultaneously, improves sealing reliability.
As more preferably, be connected with in the outer end of said axis hole and be provided with interstage sleeve, said interstage sleeve ring set in the rotating shaft and the inner face of interstage sleeve be connected on the end face of ripple sealing shroud.Through the interstage sleeve that spins of the outer end at axis hole, and the ripple sealing shroud is pressed in second annular groove through interstage sleeve, easy for installation, and can adjust the dynamics that compresses of interstage sleeve as required, improve the sealing of ripple sealing shroud.
As preferably, said ripple sealing shroud is that axial cross section is corrugated fluorubber outside framework oil seal.Fluorubber skeleton oil seal performance is good, and sealing intensity is high.
As preferably; On said rear end cap, be provided with and be used for the wire hole that the motor stator lead-in wire is derived; Said wire hole is a counterbore, in said wire hole, is embedded with the elastic caoutchouc cover, and said elastic caoutchouc cover is set in outside the lead-in wire; And the inner face of elastic caoutchouc cover and the bottom surface of wire hole offset, and the outer face of elastic caoutchouc cover offsets with the gland that is screwed in the wire hole end.Through suit elastic caoutchouc cover on the motor stator lead-in wire; And through gland the elastic caoutchouc cover is pressed in the wire hole, make the swelling of elastic caoutchouc cover between lead-in wire and wire hole, thereby guarantee the sealing at wire hole place; Simple in structure, the safety in utilization of raising motor.
Therefore; The explosion suppresion surface structure of fire-proof motor of the present invention has following advantage: through first annular groove is set on the mating surface of forward and backward end cap; And in first annular groove filling with sealant, can make the mating surface of forward and backward end cap keep sealing through fluid sealant; Through second annular groove is set on the mating surface of rotating shaft and front end housing, and in second annular groove setting-in ripple sealing shroud, can make through the ripple sealing shroud to keep multi-sealed, simple in structure between rotating shaft and front end housing, good airproof performance, safe; Through suit elastic caoutchouc cover on motor stator lead-in wire, and the elastic caoutchouc cover is pressed in the wire hole, makes the swelling of elastic caoutchouc cover between lead-in wire and wire hole, thereby guarantee the sealing of wire hole through gland.
Description of drawings:
Fig. 1 is the structural representation of the explosion suppresion surface structure of fire-proof motor of the present invention;
Fig. 2 is an A place enlarged drawing shown in Figure 1;
Fig. 3 is a B place enlarged drawing shown in Figure 1;
Fig. 4 is a C place enlarged drawing shown in Figure 1.
Embodiment:
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment:
As shown in Figure 1, the explosion suppresion surface structure of fire-proof motor of the present invention comprises that rear end cap 1 reaches and rear end cap 1 offsets and the front end housing 2 of the synthetic airtight container cavity 3 of one common peripheral; Wherein rear end cap 1 comprises that circular bottom plate 11 and coaxial integral type are connected the annular case 12 on circular bottom plate 11 base plates, and front end housing 2 is provided with the columnar structured of axis hole 21 for the bottom surface, and the openend of front end housing 2 is towards rear end cap 1 and the ring set end at annular case 12; And the end face of annular case 12 is connected on the annular boss 22 on front end housing 2 internal faces and passes through bolted; Motor stator 4 of coaxial setting-in passes motor stator 4 and is provided with rotor 5 in the airtight container cavity 3 corresponding to front end housing 2 sides, and rotating shaft 6 one ends of rotor 5 are rotatably connected on rear end cap 1 middle part through bearing; The other end of rotating shaft 6 passes the outside that axis hole 21 extends to front end housing 2; As shown in Figure 2, have first annular groove, 7, the first annular grooves 7 introversive outer step trough that has three steps that successively decrease of serving as reasons in annular case 12 outer ring surface ends corresponding to front end housing 2 inwalls; In step trough, be full of fluid sealant 8; As shown in Figure 3, on the inner ring surface of axis hole 21, have second annular groove 9, corresponding to axis hole 21 ends in second annular groove, 9 outsides through the screw thread interstage sleeve 10 that spins; Interstage sleeve 10 ring sets are in rotating shaft 6; Ripple sealing shroud 91 of suit on corresponding to the rotating shaft 6 of second annular groove 9, ripple sealing shroud 91 is corrugated fluorubber outside framework oil seal for axial cross section, and ripple sealing shroud 91 is inlaid in second annular groove 9 and the inner faces of interstage sleeve 10 are connected on the outer face of ripple sealing shroud 91; As shown in Figure 4; On the annular case 12 of rear end cap 1, have one and be used for the wire hole 13 that motor stator 4 lead-in wires 41 are derived, wire hole 13 is counterbores, at the elastic caoutchouc cover 14 of lead-in wire 41 outside suits corresponding to wire hole 13; The inner face of elastic caoutchouc cover 14 and the bottom surface of wire hole 13 offset, and the outer face of elastic caoutchouc cover 14 offsets with the gland 15 that is screwed in wire hole 13 ends.
During use; 2 of rear end cap 1 and front end housings keep sealing through the fluid sealants 8 that are filled in first annular groove 7; The ripple sealing shrouds 91 that 6 of front end housing 2 and rotating shafts are passed through in second annular groove 9 keep sealing; 41 in rear end cap 1 and lead-in wire overlap 14 through the elastic caoutchouc in the wire hole 13 and keep sealing, and charged parts and the outer explosive mixture partition of motor in the motor are left, and make it can not be in contact with one another or not reach the degree with explosion risk.
Specific embodiment described herein only is that design of the present invention is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (6)
1. the explosion suppresion surface structure of a fire-proof motor; Comprise that rear end cap (1) reaches the front end housing (2) that synthesizes airtight container cavity (3) with rear end cap (1) one common peripheral; In said airtight container cavity (3), be provided with motor stator (4) and rotor (5); Rotating shaft (6) one ends of said rotor (5) are rotatably connected on the rear end cap (1); The other end of rotating shaft (6) extends to outside the front end housing (2); It is characterized in that: on the mating surface of said rear end cap (1) and front end housing (2), be provided with first annular groove (7), in said first annular groove (7), be filled with fluid sealant (8), on the mating surface of said rotating shaft (6) and front end housing (2), be provided with second annular groove (9); In said second annular groove (9), be embedded with ripple sealing shroud (91), ripple sealing shroud (91) makes and keeps multi-sealed between rotating shaft (6) and front end housing (2); Said rear end cap (1) comprises circular bottom plate (11) and is located in the annular case (12) on circular bottom plate (11) base plate together; Said circular bottom plate (11) is connected for integral type with annular case (12); Said front end housing (2) is provided with the columnar structured of axis hole (21) for the bottom surface; Said second annular groove (9) is located on the inner ring surface of axis hole (21); The openend of said front end housing (2) is towards annular case (12) and the ring set end in annular case (12); And the annular boss (22) on the end face of said annular case (12) and front end housing (2) internal face offsets, and said first annular groove (7) is located at the outer ring surface end of annular case (12).
2. the explosion suppresion surface structure of fire-proof motor according to claim 1 is characterized in that: said first annular groove (7) the introversive outer step trough that has several steps that successively decrease of serving as reasons.
3. the explosion suppresion surface structure of fire-proof motor according to claim 1; It is characterized in that: be connected with in the outer end of said axis hole (21) and be provided with interstage sleeve (10), said interstage sleeve (10) ring set is gone up and the inner face of interstage sleeve (10) is connected on the end face of ripple sealing shroud (91) in rotating shaft (6).
4. according to the explosion suppresion surface structure of any described fire-proof motor in the claim 1 to 3, it is characterized in that: said ripple sealing shroud (91) is corrugated fluorubber outside framework oil seal for axial cross section.
5. according to the explosion suppresion surface structure of any described fire-proof motor in the claim 1 to 3; It is characterized in that: on said rear end cap (1), be provided with the wire hole (13) that is used for motor stator (4) lead-in wire (41) derivation; Said wire hole (13) is a counterbore; In said wire hole (13), be embedded with elastic caoutchouc cover (14); Said elastic caoutchouc cover (14) is set in outside the lead-in wire (41), and the bottom surface of the inner face of elastic caoutchouc cover (14) and wire hole (13) offsets, and the outer face of elastic caoutchouc cover (14) offsets with the gland (15) that is screwed in wire hole (13) end.
6. the explosion suppresion surface structure of fire-proof motor according to claim 4; It is characterized in that: on said rear end cap (1), be provided with the wire hole (13) that is used for motor stator (4) lead-in wire (41) derivation; Said wire hole (13) is a counterbore; In said wire hole (13), be embedded with elastic caoutchouc cover (14); Said elastic caoutchouc cover (14) is set in outside the lead-in wire (41), and the bottom surface of the inner face of elastic caoutchouc cover (14) and wire hole (13) offsets, the outer face of elastic caoutchouc cover (14) be screwed in the gland (15) that wire hole (13) end leads and offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106069248A CN102082479B (en) | 2010-12-27 | 2010-12-27 | Flameproof face structure for explosion-proof motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106069248A CN102082479B (en) | 2010-12-27 | 2010-12-27 | Flameproof face structure for explosion-proof motor |
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| Publication Number | Publication Date |
|---|---|
| CN102082479A CN102082479A (en) | 2011-06-01 |
| CN102082479B true CN102082479B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106069248A Active CN102082479B (en) | 2010-12-27 | 2010-12-27 | Flameproof face structure for explosion-proof motor |
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| Country | Link |
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| CN (1) | CN102082479B (en) |
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| CN102916549B (en) * | 2011-08-04 | 2016-08-03 | 湖北毅源科技开发有限公司 | A kind of explosion-proof brushless DC motor |
| CN103066718A (en) * | 2011-10-24 | 2013-04-24 | 太仓富田瑞兰得电机有限公司 | High protective axial flow fan motor and high protective axial flow fan with the same |
| CN103216435B (en) * | 2013-01-30 | 2015-10-28 | 山东新煤方舟科技有限公司 | The explosion-proof compressor of mine emergency hedge refrigerator dedicated pouring type and prepare fixation method |
| CN103401343B (en) * | 2013-07-30 | 2016-04-27 | 浙江安美德汽车配件有限公司 | A kind of integral mining explosion-proof power generator |
| CN104625070B (en) * | 2014-12-24 | 2016-10-05 | 中山市新泰兴粉末冶金有限公司 | The anti-explosion mechanism of debinding furnace |
| CN107404174B (en) * | 2017-08-28 | 2024-03-26 | 广东威灵电机制造有限公司 | Motor shell and motor |
| EP3754816B1 (en) * | 2018-02-15 | 2024-03-20 | Panasonic Intellectual Property Management Co., Ltd. | Motor and electric device with the same |
| CN111878581B (en) * | 2020-07-24 | 2022-05-17 | 舟山海山机械密封材料股份有限公司 | Novel sealing gasket structure for sealing engine |
| CN113162324B (en) * | 2021-03-02 | 2023-01-03 | 包头市国安工程机械有限公司 | Conveyor belt energy recovery device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215202U (en) * | 1987-12-17 | 1988-12-14 | 衡阳市电机厂 | Constant magnetic generator of explosion-proof type |
| CN2318749Y (en) * | 1997-09-22 | 1999-05-12 | 沈阳防爆电机总厂 | Explosion-proof electric machine installed cable direct lead-in device |
| CN2449410Y (en) * | 2000-08-17 | 2001-09-19 | 机械工业部南阳防爆电气研究所 | IP 55 grade explosion proof motor |
| CN201582387U (en) * | 2009-11-18 | 2010-09-15 | 天津埃柯特阀门控制设备有限公司 | Plane flame-proof sealing structure |
-
2010
- 2010-12-27 CN CN2010106069248A patent/CN102082479B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215202U (en) * | 1987-12-17 | 1988-12-14 | 衡阳市电机厂 | Constant magnetic generator of explosion-proof type |
| CN2318749Y (en) * | 1997-09-22 | 1999-05-12 | 沈阳防爆电机总厂 | Explosion-proof electric machine installed cable direct lead-in device |
| CN2449410Y (en) * | 2000-08-17 | 2001-09-19 | 机械工业部南阳防爆电气研究所 | IP 55 grade explosion proof motor |
| CN201582387U (en) * | 2009-11-18 | 2010-09-15 | 天津埃柯特阀门控制设备有限公司 | Plane flame-proof sealing structure |
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| Publication number | Publication date |
|---|---|
| CN102082479A (en) | 2011-06-01 |
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Address after: 311401, No. 6, No. 12, Dongzhou Industrial Park, Hangzhou, Zhejiang, Fuyang Applicant after: HANGZHOU AOTAI ELECTRICAL Co.,Ltd. Address before: 311401, No. 6, No. 12, Dongzhou Industrial Park, Hangzhou, Zhejiang, Fuyang Applicant before: HANGZHOU FUNING ELECTRICAL APPLIANCE Co.,Ltd. |
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Effective date of registration: 20220121 Address after: 311400 Building 2, No. 12, No. 6 road, Dongzhou industrial functional zone, Dongzhou street, Hangzhou, Zhejiang Patentee after: Zhejiang Xinli Electrical Technology Co.,Ltd. Address before: 311401 No. 12, No. 6 road, Dongzhou Industrial Park, Fuyang City, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU AOTAI ELECTRICAL Co.,Ltd. |
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Denomination of invention: Flameproof surface structure of explosion-proof motor Effective date of registration: 20221011 Granted publication date: 20121121 Pledgee: Zhejiang Fuyang rural commercial bank Limited by Share Ltd. Dongzhou branch Pledgor: Zhejiang Xinli Electrical Technology Co.,Ltd. Registration number: Y2022330002541 |
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