CN104158335A - Explosion-proof-type motor seal structure for draw-out-type blower fan - Google Patents
Explosion-proof-type motor seal structure for draw-out-type blower fan Download PDFInfo
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- CN104158335A CN104158335A CN201410407318.1A CN201410407318A CN104158335A CN 104158335 A CN104158335 A CN 104158335A CN 201410407318 A CN201410407318 A CN 201410407318A CN 104158335 A CN104158335 A CN 104158335A
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- bearing
- deep groove
- groove ball
- end cover
- cover
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Abstract
The invention relates to an explosion-proof-type motor seal structure for a draw-out-type blower fan. The motor seal structure comprises a deep groove ball bearing arranged in an end cap bearing chamber, wherein the deep groove ball bearing is internally provided with a rotation shaft. The motor seal structure is characterized in that the two sides of the deep groove ball bearing are provided with a bearing inner cover and a bearing outer cover respectively; a wave spring piece playing a limitation function is arranged between the deep groove ball bearing and the bearing outer cover; the outer side of the bearing outer cover is provided with a seal disc; the bearing inner cover, the bearing outer cover, the wave spring piece and the seal disc are sleeved on the rotation shaft; and a seal ring is arranged between the bearing outer cover and the rotation shaft. The motor seal structure adopts a double seal structure, thereby effectively preventing water and impurities from going into the inner side of the motor from the place where the shaft passes through, and meeting the requirement of use conditions.
Description
Technical field
The present invention relates to a kind of motor hermetically-sealed construction, especially a kind of exhaust fan flameproof motor hermetically-sealed construction.
Background technology
On the basis of advancing by leaps and bounds in exhaust fan research and development, motor sealing structure becomes the weak link of a relative thin.Because exhaust fan running environment high humidity, coal dust is many, and operating mode is severe, will cause burn-down of electric motor, thereby bring larger economic loss once sealing goes wrong.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of exhaust fan flameproof motor hermetically-sealed construction be provided, adopt double sealing structure, can effectively anti-sealing and impurity from axle perforation, enter motor internal, meet applying working condition requirement.
According to technical scheme provided by the invention, a kind of exhaust fan flameproof motor hermetically-sealed construction, comprise and be arranged on the indoor deep groove ball bearing of bearing with end cover, in deep groove ball bearing, be provided with rotating shaft, it is characterized in that: the both sides of described deep groove ball bearing are respectively equipped with internal bearing cover and bearing end cover, between deep groove ball bearing and bearing end cover, be provided with the wavy spring sheet of position-limiting action, bearing end cover outside is provided with seal disc; Described internal bearing cover, bearing end cover, wavy spring sheet and seal disc are all set in rotating shaft, between bearing end cover and rotating shaft, are provided with sealing ring.
Described internal bearing cover, end cap, bearing end cover are connected by bolt, packing ring.
Between described seal disc and bearing end cover, form bent line structure.
Described seal disc adopts interference fit hot jacket in rotating shaft.
Hermetically-sealed construction of the present invention meets the requirement of exhaust fan degree of protection, can effectively anti-sealing and coal dust from axle, connect and enter motor internal, meet the working condition requirement of exhaust fan operation, in the extensive use of the field of exhaust fan.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 1: described a kind of exhaust fan comprises rotating shaft 1, seal disc 2, bearing end cover 3, end cap 4, bolt 5, packing ring 6, internal bearing cover 7, deep groove ball bearing 8, wavy spring sheet 9, sealing ring 10 etc. with flameproof motor hermetically-sealed construction.
As shown in Figure 1, the present invention includes the deep groove ball bearing 8 being arranged in end cap 4 bearing chambers, in deep groove ball bearing 8, be provided with rotating shaft 1, the both sides of deep groove ball bearing 8 are respectively equipped with internal bearing cover 7 and bearing end cover 3, between deep groove ball bearing 8 and bearing end cover 3, be provided with the wavy spring sheet 9 of position-limiting action, bearing end cover 3 outsides are provided with seal disc 2; Internal bearing cover 7, bearing end cover 3, wavy spring sheet 9 and seal disc 2 are all set in rotating shaft 1, between bearing end cover 3 and rotating shaft 1, are provided with sealing ring 10;
Internal bearing cover 7, end cap 4, bearing end cover 3 are connected by bolt 5, packing ring 6;
Between seal disc 2 and bearing end cover 3, form bent line structure, anti-sealing and coal dust enter axle and connect;
Seal disc 2 adopts interference fit hot jacket with motor, to rotate in rotating shaft 1.
Operation principle of the present invention and the course of work: as shown in Figure 1, deep groove ball bearing 8 can bear the axial load of radial load and either direction, the coaxiality error of adjustment blower fan and motor-shaft extending, meets the requirement that load rotating inertia is large; The labyrinth seal that bearing end cover 3 and seal disc 2 forms is as primary seal structure, is embedded in sealing ring 10 between bearing end cover 3 and rotating shaft 1 as secondary seal structure, jointly forms dual-seal, and effective anti-sealing and impurity enter axle and connects.
Claims (4)
1. an exhaust fan flameproof motor hermetically-sealed construction, comprise the deep groove ball bearing (8) being arranged in end cap (4) bearing chamber, in deep groove ball bearing (8), be provided with rotating shaft (1), it is characterized in that: the both sides of described deep groove ball bearing (8) are respectively equipped with internal bearing cover (7) and bearing end cover (3), between deep groove ball bearing (8) and bearing end cover (3), be provided with the wavy spring sheet (9) of position-limiting action, bearing end cover (3) outside is provided with seal disc (2); It is upper that described internal bearing cover (7), bearing end cover (3), wavy spring sheet (9) and seal disc (2) are all set in rotating shaft (1), between bearing end cover (3) and rotating shaft (1), is provided with sealing ring (10).
2. exhaust fan as claimed in claim 1 flameproof motor hermetically-sealed construction, is characterized in that: described internal bearing cover (7), end cap (4), bearing end cover (3) are connected by bolt (5), packing ring (6).
3. exhaust fan as claimed in claim 1 flameproof motor hermetically-sealed construction, is characterized in that: between described seal disc (2) and bearing end cover (3), form bent line structure.
4. exhaust fan as claimed in claim 1 flameproof motor hermetically-sealed construction, is characterized in that: described seal disc (2) adopts interference fit hot jacket in rotating shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407318.1A CN104158335A (en) | 2014-08-18 | 2014-08-18 | Explosion-proof-type motor seal structure for draw-out-type blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407318.1A CN104158335A (en) | 2014-08-18 | 2014-08-18 | Explosion-proof-type motor seal structure for draw-out-type blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104158335A true CN104158335A (en) | 2014-11-19 |
Family
ID=51883774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410407318.1A Pending CN104158335A (en) | 2014-08-18 | 2014-08-18 | Explosion-proof-type motor seal structure for draw-out-type blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104158335A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528405A (en) * | 2016-06-21 | 2017-12-29 | 中电电机股份有限公司 | The sealing device of dust explosion-proof motor |
| CN108667197A (en) * | 2018-05-28 | 2018-10-16 | 胡明 | A kind of explosion separation structure of motor |
| CN109274197A (en) * | 2018-11-22 | 2019-01-25 | 北京精密机电控制设备研究所 | A kind of low temperature electric machine of internal immersion liquid medium |
| CN110594741A (en) * | 2019-10-10 | 2019-12-20 | 南阳市中通防爆电机电器有限公司 | Explosion-proof ultralow nitrogen combustor |
| CN112134394A (en) * | 2020-10-12 | 2020-12-25 | 珠海宇飞科技有限公司 | High-impact-resistance motor and mounting method thereof |
| WO2022041487A1 (en) * | 2020-08-24 | 2022-03-03 | 江苏嘉轩智能工业科技股份有限公司 | Explosion-proof structure of drum 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201194360Y (en) * | 2008-04-30 | 2009-02-11 | 无锡市中达电机有限公司 | Motor bearing component construction special for compressor |
| CN203352353U (en) * | 2013-07-25 | 2013-12-18 | 上海电气集团上海电机厂有限公司 | Bearing structure of double-fed wind-driven generator |
| CN204030808U (en) * | 2014-08-18 | 2014-12-17 | 中达电机股份有限公司 | Exhaust fan flameproof motor hermetically-sealed construction |
-
2014
- 2014-08-18 CN CN201410407318.1A patent/CN104158335A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201194360Y (en) * | 2008-04-30 | 2009-02-11 | 无锡市中达电机有限公司 | Motor bearing component construction special for compressor |
| CN203352353U (en) * | 2013-07-25 | 2013-12-18 | 上海电气集团上海电机厂有限公司 | Bearing structure of double-fed wind-driven generator |
| CN204030808U (en) * | 2014-08-18 | 2014-12-17 | 中达电机股份有限公司 | Exhaust fan flameproof motor hermetically-sealed construction |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528405A (en) * | 2016-06-21 | 2017-12-29 | 中电电机股份有限公司 | The sealing device of dust explosion-proof motor |
| CN108667197A (en) * | 2018-05-28 | 2018-10-16 | 胡明 | A kind of explosion separation structure of motor |
| CN109274197A (en) * | 2018-11-22 | 2019-01-25 | 北京精密机电控制设备研究所 | A kind of low temperature electric machine of internal immersion liquid medium |
| CN109274197B (en) * | 2018-11-22 | 2020-06-23 | 北京精密机电控制设备研究所 | Low-temperature motor with liquid medium soaked inside |
| CN110594741A (en) * | 2019-10-10 | 2019-12-20 | 南阳市中通防爆电机电器有限公司 | Explosion-proof ultralow nitrogen combustor |
| WO2022041487A1 (en) * | 2020-08-24 | 2022-03-03 | 江苏嘉轩智能工业科技股份有限公司 | Explosion-proof structure of drum motor |
| CN112134394A (en) * | 2020-10-12 | 2020-12-25 | 珠海宇飞科技有限公司 | High-impact-resistance motor and mounting method thereof |
| 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 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141119 |
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| WD01 | Invention patent application deemed withdrawn after publication |