CN107612224B - Circulation cooling type explosion-proof motor - Google Patents
Circulation cooling type explosion-proof motor Download PDFInfo
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- CN107612224B CN107612224B CN201711129423.3A CN201711129423A CN107612224B CN 107612224 B CN107612224 B CN 107612224B CN 201711129423 A CN201711129423 A CN 201711129423A CN 107612224 B CN107612224 B CN 107612224B
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- cooling
- motor
- rotating shaft
- motor rotating
- pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a circulating cooling type explosion-proof motor. The cooling device solves the problems that in the prior art, a motor rotating shaft cannot be cooled and a cooling water pipe is fixed and complicated. The cooling pipe is spirally wound outside the machine base, and one end of the cooling pipe is communicated with the circulating pump; annular grooves are respectively formed in the motor rotating shaft, a cooling air duct is axially formed in the motor rotating shaft, and the cooling air duct is communicated with the annular grooves through communication holes; the motor is characterized in that a fixed seat is arranged on a motor rotating shaft, one end of a connecting pipe is tightly fixed with the fixed seat, a pipe cavity of the connecting pipe is communicated with the annular groove through a through hole on the fixed seat, the other end of the connecting pipe is tightly connected with the engine base and extends out of the engine base, and a cooling fan is communicated with the end part of the connecting pipe outside the engine base. The utility model cools the motor rotating shaft and the engine base at the same time, reduces the temperature of the explosion-proof motor during working, prolongs the service life and improves the working efficiency.
Description
Technical Field
The utility model relates to a motor cooling system using liquid cooling medium and provided with a closed shell, in particular to a circulating cooling type explosion-proof motor.
Background
An explosion-proof motor is known to be a motor which can be used in flammable and explosive places and does not generate electric sparks during operation. The device is mainly used for coal mines, petroleum and natural gas, petrochemical industry and chemical industry, and is generally used for driving pumps, fans, compressors, other transmission machinery and the like. The explosion-proof motor is damaged due to the fact that the cooling performance is poor, and the service life of the motor is shortened. Therefore, the explosion-proof motor is improved by a large number of technicians, a cooling system is added in the explosion-proof motor, for example, CN 203871993U Chinese patent specification disclosed in 10 months and 8 days of 2014 discloses a circulating cooling type explosion-proof motor, a liquid storage bin is fixedly connected to the outer end of a shell, two ends of the liquid storage bin are respectively communicated with two ends of a cooling pipe, a circulating pump is arranged on the cooling pipe, and the cooling pipe is fixedly connected with the shell. Although the motor in this publication can utilize circulation cooling to reduce the temperature of the motor during operation, which prolongs the service life of the motor, the motor rotation shaft cannot be cooled. In addition, the cooling pipe is fixedly connected and attached to the shell through the clamping ring, and the defect of complicated fixation exists.
Disclosure of Invention
In order to overcome the defect that a motor rotating shaft and a cooling water pipe cannot be cooled and are complex to fix in the prior art, the utility model provides the circulating cooling type explosion-proof motor which is reasonable in design, good in motor rotating heat dissipation and easy to fix the cooling water pipe.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an explosion-proof motor of circulative cooling formula, its includes a frame, a stator, a rotor, a motor shaft, both ends lid, a cooling tube and a circulating pump, the stator assembly be in the frame in both ends that both ends lid were fixed respectively at the frame, the rotor assembly in motor shaft, motor shaft together with the rotor assembly in the interior circle of stator to the both ends of motor shaft rotate respectively and support on both ends lid, its characterized in that: the cooling pipe is spirally wound outside the machine base, and one end of the cooling pipe is communicated with the circulating pump; annular grooves are respectively formed in motor rotating shafts at two ends of the rotor, cooling air channels are axially formed in the motor rotating shafts, and two ends of each cooling air channel are respectively communicated with the annular grooves through communication holes; the motor rotating shaft is provided with fixed seats corresponding to the annular grooves respectively, the fixed seats are respectively provided with through holes, the fixed seats are respectively and hermetically fixed with one end of a connecting pipe, the pipe cavity of the connecting pipe is communicated with the annular grooves through the through holes on the fixed seats, and the other end of the connecting pipe is hermetically connected with the base and extends out of the base; the end part of a connecting pipe outside the machine base is communicated with a cooling fan.
The fixing seat comprises an upper fixing seat and a lower fixing seat, wherein the upper fixing seat and the lower fixing seat are clasped on the motor rotating shaft and rotate relative to the motor rotating shaft.
Annular bosses are arranged on the upper fixing seat and the lower fixing seat corresponding to the annular grooves, and are embedded in the annular grooves.
And a wear-resistant pad is arranged between the side table wall of the annular boss and the side groove wall of the annular groove.
The cooling pipe is spirally wound outside the engine base, and the cooling pipe and the engine base are easy to fix; annular grooves are formed in motor rotating shafts at two ends of the rotor, cooling air channels are axially formed in the motor rotating shafts, and two ends of each cooling air channel are respectively communicated with the annular grooves through communication holes; the motor rotating shaft is respectively connected with the connecting pipe through the fixing seat, the pipe cavity of the connecting pipe is communicated with the annular groove on the motor rotating shaft through the through hole on the fixing seat, the connecting pipe is in airtight connection with the engine base, the other end of the connecting pipe extends out of the engine base, and the end part of the connecting pipe is communicated with the cooling fan. The cooling air generated by the cooling fan cools the motor rotating shaft through the connecting pipe, the fixing seat, the annular groove and the cooling air channel, so that the temperature of the main shaft and the shell of the explosion-proof motor is reduced, the service life of the explosion-proof motor is prolonged, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic view of a construction of the present utility model;
fig. 2 is an enlarged cross-sectional view taken along line A-A of fig. 1.
The marks in the figure: 1. the engine comprises an engine base, a stator, a rotor, a motor rotating shaft, an end cover, a cooling pipe, a circulating pump, an annular groove, a cooling air duct, a communication hole, a fixing seat, an upper fixing seat, a lower fixing seat, an annular boss, a through hole, a connecting pipe, a cooling fan and a wear-resistant pad.
Description of the embodiments
The utility model will be described in further detail with reference to the drawings and examples.
In fig. 1, a circulation cooling type explosion-proof motor comprises a base 1, a stator 2, a rotor 3, a motor rotating shaft 4, two end covers 5, a cooling pipe 6 and a circulation pump 7.
As shown in fig. 1, a stator 2 is assembled in a machine base 1, two end covers 5 are respectively fixed on two ends of the machine base 1 by bolts, a rotor 3 is assembled on a motor rotating shaft 4, the motor rotating shaft 4 and the rotor 3 are assembled in an inner circle of the stator 2, and two ends of the motor rotating shaft 4 are respectively supported on the two end covers 5 through bearings in a rotating manner.
In fig. 1, the cooling tube 6 is spirally wound outside the housing 1, and the cooling tube 6 may be spirally wound outside the housing 1 after being bent or welded outside the housing 1 after being bent and deformed, and is easily fixed to the housing 1.
As shown in fig. 1, one end of the cooling pipe 6 communicates with a circulation pump 7.
In fig. 1, annular grooves 8 are respectively formed in motor shafts 4 at two ends of a rotor 3, cooling air channels 9 are axially formed in the motor shafts 4, and two ends of the cooling air channels 9 are respectively communicated with the annular grooves 8 through communication holes 10.
In order to realize the communication between the annular groove 8 and the outside of the machine base 1, in fig. 1 and 2, fixing seats 11 are respectively arranged on the motor rotating shaft 4 corresponding to the annular groove 8. As shown in fig. 1 and 2, through holes 13 are respectively formed in the fixing base 11, the fixing base 11 is respectively and hermetically fixed with one end of a connecting pipe 14, a pipe cavity of the connecting pipe 14 is communicated with the annular groove 8 through the through holes 13 in the fixing base 11, and the other end of the connecting pipe 14 is hermetically connected with the machine base 1 and extends out of the machine base 1.
In fig. 1, a cooling fan 15 is connected to the end of a connecting pipe 14 outside the housing 1.
It should be further noted that, as shown in fig. 2, the fixing base 11 includes an upper fixing base 111 and a lower fixing base 112, the upper fixing base 111 and the lower fixing base 112 are clasped on the motor shaft 4 and are symmetrically fixed by bolts, and the upper fixing base 111 and the lower fixing base 112 rotate relative to the motor shaft 4.
In order to prevent the fixed seat 11 from axially displacing on the motor rotating shaft 4, as shown in fig. 1, annular bosses 12 are respectively arranged on the upper fixed seat 111 and the lower fixed seat 112 corresponding to the annular grooves, and the annular bosses 12 are embedded in the annular grooves 8.
In order to increase the service life of the fixing seat 11 and the motor rotating shaft, a wear-resistant pad 16 is arranged between the side table wall of the annular boss 12 and the side groove wall of the annular groove 8. The wear pad 16 may be a copper pad.
When the cooling machine is used, cooling water pumped by the circulating pump 7 is sent into the cooling pipe 6 for circulation and then sent out from the other end of the cooling pipe, and the cooling pipe 6 is attached to the machine base 1, so that the cooling water takes away heat on the machine base 1, and the cooling effect of the machine base 1 is good. The cooling air pumped by the cooling fan 15 is sent into the cooling air channel 9 inside the motor rotating shaft 4 for internal circulation through the connecting pipe 14, the through hole 13 on the fixing seat 11, the annular groove 8 on the motor rotating shaft 4 and the communication hole 10, and then sent out of the machine base 1 through the fixing seat 11 and the connecting pipe 14 on the other end of the motor rotating shaft 4. The cooling air takes away the heat on the motor rotating shaft 4, and the cooling effect of the motor rotating shaft 4 is good.
According to the utility model, the motor rotating shaft 4 and the machine base 1 are cooled simultaneously, so that the explosion-proof motor is cooled rapidly and efficiently, the working temperature of the explosion-proof motor is reduced, the phenomenon of damage to the motor caused by overhigh temperature is avoided, the service life of the explosion-proof motor is prolonged, and the working efficiency is improved.
Claims (3)
1. The utility model provides an explosion-proof motor of circulative cooling formula, its includes a frame, a stator, a rotor, a motor shaft, both ends lid, a cooling tube and a circulating pump, the stator assembly be in the frame in both ends that both ends lid were fixed respectively at the frame, the rotor assembly in motor shaft, motor shaft together with the rotor assembly in the interior circle of stator to the both ends of motor shaft rotate respectively and support on both ends lid, its characterized in that: the cooling pipe is spirally wound outside the machine base, and one end of the cooling pipe is communicated with the circulating pump; annular grooves are respectively formed in motor rotating shafts at two ends of the rotor, cooling air channels are axially formed in the motor rotating shafts, and two ends of each cooling air channel are respectively communicated with the annular grooves through communication holes; the motor rotating shaft is provided with fixed seats corresponding to the annular grooves respectively, the fixed seats are respectively provided with through holes, the fixed seats are respectively and hermetically fixed with one end of a connecting pipe, the pipe cavity of the connecting pipe is communicated with the annular grooves through the through holes on the fixed seats, and the other end of the connecting pipe is hermetically connected with the base and extends out of the base; the end part of a connecting pipe outside the machine base is communicated with a cooling fan; the fixing seat comprises an upper fixing seat and a lower fixing seat, wherein the upper fixing seat and the lower fixing seat are clasped on the motor rotating shaft and rotate relative to the motor rotating shaft.
2. A circulation cooling type explosion-proof motor according to claim 1, wherein: annular bosses are arranged on the upper fixing seat and the lower fixing seat corresponding to the annular grooves, and are embedded in the annular grooves.
3. A circulation cooling type explosion-proof motor according to claim 2, wherein: and a wear-resistant pad is arranged between the side table wall of the annular boss and the side groove wall of the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129423.3A CN107612224B (en) | 2017-11-15 | 2017-11-15 | Circulation cooling type explosion-proof motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129423.3A CN107612224B (en) | 2017-11-15 | 2017-11-15 | Circulation cooling type explosion-proof motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107612224A CN107612224A (en) | 2018-01-19 |
| CN107612224B true CN107612224B (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711129423.3A Active CN107612224B (en) | 2017-11-15 | 2017-11-15 | Circulation cooling type explosion-proof motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN107612224B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829691A (en) * | 2019-12-04 | 2020-02-21 | 北斗航天汽车（北京）有限公司 | Motor with shaft cooling channel |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007043656A1 (en) * | 2007-09-13 | 2009-05-07 | Siemens Ag | Electrical machine has rotor supported on hollow shaft, where hollow shaft is formed in inner side of closed hollow space and stator is arranged within housing |
| JP2011223805A (en) * | 2010-04-13 | 2011-11-04 | Sinfonia Technology Co Ltd | Rotary device |
| CN203166694U (en) * | 2013-03-29 | 2013-08-28 | 黑龙江弗耐德国茂电机有限公司 | Compulsive air-cooled frequency conversion speed regulation motor |
| CN103650294A (en) * | 2011-07-07 | 2014-03-19 | 西门子公司 | Electric machine with rotor interior ventilation |
| CN203871993U (en) * | 2014-05-25 | 2014-10-08 | 常州市凯拉电气有限公司 | Circulating cooling-type explosion-proof motor |
| JP2015027173A (en) * | 2013-07-26 | 2015-02-05 | トヨタ自動車株式会社 | Motor |
| CN106026499A (en) * | 2016-07-27 | 2016-10-12 | 吴继成 | Water cooling motor |
| CN106451915A (en) * | 2016-08-26 | 2017-02-22 | 中国船舶重工集团公司第七〇二研究所 | External rotor permanent magnet motor stator |
| CN106451863A (en) * | 2016-10-19 | 2017-02-22 | 长春工业大学 | Motor rotor cooling structure |
| CN106505598A (en) * | 2016-12-09 | 2017-03-15 | 枣庄度秘信息科技有限公司 | A kind of cooling system of flywheel accumulator |
| CN206117332U (en) * | 2016-09-13 | 2017-04-19 | 丁小礼 | Motor with wheel limit fastening structure |
| CN206237254U (en) * | 2016-10-27 | 2017-06-09 | 蔚来汽车有限公司 | Motor liquid cooling structure |
| CN207353995U (en) * | 2017-11-15 | 2018-05-11 | 威海众泰电机有限公司 | A kind of circulating cooling type fire-proof motor |
-
2017
- 2017-11-15 CN CN201711129423.3A patent/CN107612224B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007043656A1 (en) * | 2007-09-13 | 2009-05-07 | Siemens Ag | Electrical machine has rotor supported on hollow shaft, where hollow shaft is formed in inner side of closed hollow space and stator is arranged within housing |
| JP2011223805A (en) * | 2010-04-13 | 2011-11-04 | Sinfonia Technology Co Ltd | Rotary device |
| CN103650294A (en) * | 2011-07-07 | 2014-03-19 | 西门子公司 | Electric machine with rotor interior ventilation |
| CN203166694U (en) * | 2013-03-29 | 2013-08-28 | 黑龙江弗耐德国茂电机有限公司 | Compulsive air-cooled frequency conversion speed regulation motor |
| JP2015027173A (en) * | 2013-07-26 | 2015-02-05 | トヨタ自動車株式会社 | Motor |
| CN203871993U (en) * | 2014-05-25 | 2014-10-08 | 常州市凯拉电气有限公司 | Circulating cooling-type explosion-proof motor |
| CN106026499A (en) * | 2016-07-27 | 2016-10-12 | 吴继成 | Water cooling motor |
| CN106451915A (en) * | 2016-08-26 | 2017-02-22 | 中国船舶重工集团公司第七〇二研究所 | External rotor permanent magnet motor stator |
| CN206117332U (en) * | 2016-09-13 | 2017-04-19 | 丁小礼 | Motor with wheel limit fastening structure |
| CN106451863A (en) * | 2016-10-19 | 2017-02-22 | 长春工业大学 | Motor rotor cooling structure |
| CN206237254U (en) * | 2016-10-27 | 2017-06-09 | 蔚来汽车有限公司 | Motor liquid cooling structure |
| CN106505598A (en) * | 2016-12-09 | 2017-03-15 | 枣庄度秘信息科技有限公司 | A kind of cooling system of flywheel accumulator |
| CN207353995U (en) * | 2017-11-15 | 2018-05-11 | 威海众泰电机有限公司 | A kind of circulating cooling type fire-proof motor |
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| Publication number | Publication date |
|---|---|
| CN107612224A (en) | 2018-01-19 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230728 Address after: No. 48, Rongchang Road, Rongcheng City, Weihai City, Shandong Province, 264300 Applicant after: Shandong Zhongtai explosion proof Motor Co.,Ltd. Address before: No. 48, Rongchang Road, Rongcheng City, Weihai City, Shandong Province, 264300 Applicant before: WEIHAI ZHONGTAI MOTOR Co.,Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |