CN104218721A - High-impact-resistant overload motor - Google Patents
High-impact-resistant overload motor Download PDFInfo
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- CN104218721A CN104218721A CN201310418947.XA CN201310418947A CN104218721A CN 104218721 A CN104218721 A CN 104218721A CN 201310418947 A CN201310418947 A CN 201310418947A CN 104218721 A CN104218721 A CN 104218721A
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- bearing
- end cap
- rotating shaft
- motor
- high impact
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides a high-impact-resistant overload motor. The high-impact-resistant overload motor comprises a rotor, an end cap and a bearing, wherein the rotor is provided with a rotating shaft; a bearing housing is formed in the end cap; a bearing is inlaid in the bearing housing, is arranged on the rotating shaft and is positioned in the bearing housing; a positioning piece which is used for positioning an inner race of the bearing in the axial direction is also arranged in the bearing housing and clings to an end surface of the inner race of the bearing; and an outer race of the bearing is in clearance fit with the bearing housing. The end cap of the high-impact-resistant overload motor is improved; a portion, which is in contact with the bearing, of the positioning piece for positioning the inner race of the bearing is changed; after the bearing is mounted in the bearing housing of the end cap, the inner face of the bearing is positioned by the positioning piece; the outer race of the bearing is in clearance fit with the inner wall of the end cap; and when the motor overloads in the axial direction, only the inner race of the bearing is stressed but the outer race of the bearing is not stressed under the effect of impact force generated by the rotor, balls and a raceway of the bearing are seldom stressed, the bearing is not easy to damage, and the high-impact-resistant overload performance of the whole motor is improved.
Description
Technical field
The present invention relates to a kind of motor, be specifically related to a kind of anti-high impact overload motor.
Background technology
Motor is widely used in the various fields such as industry, business, public utility and household electrical appliance, as the power of the various equipment such as blower fan, water pump, compressor, lathe.Along with the continuous progress of China's science and technology, more and more harsher requirement be it is also proposed to the index such as environmental suitability, reliability of motor.Especially for some specific area, very high requirement is proposed to the anti-high impact overload performance of motor.
The structure of existing motor is generally: as shown in Figure 1, 2, a bearing 2 is installed respectively at the two ends of rotor shaft 3, then bearing 2 is installed in the bearing chamber of end cap 1, therefore, the end face of bearing inner race D and rotating shaft close contact, the end face of bearing outer ring C and end cap close contact.The major defect of this kind of structure existence is: when motor axial load factor, under the impact force action that rotor produces, power is delivered to bearing inner race by ball by bearing outer ring, force bearing ball to depart from raceway time serious, Internal and external cycle is separated and destroys, and then reduce the anti-high impact overload performance of whole motor, be difficult to meet in the requirement of specific area to motor performance.
Summary of the invention
For the defect that prior art exists, the invention provides a kind of anti-high impact overload motor, there is stronger anti-high impact overload performance.
The technical solution used in the present invention is as follows:
The invention provides a kind of anti-high impact overload motor, comprising: there is the rotor of rotating shaft, end cap and bearing; Wherein, be provided with the bearing chamber of bearing described in setting-in in described end cap, described bearing to be arranged in described rotating shaft and to be positioned at described bearing chamber; In described bearing chamber, be also provided with the keeper of axial location bearing inner race, the end face of described keeper and bearing inner race is close together, and bearing outer ring and described bearing chamber are matched in clearance.
Preferably, described keeper is boss.
Preferably, the quantity of described end cap and described bearing is respectively two; A bearing and an end cap supporting with this bearing are installed respectively at the two ends of described rotating shaft; Be arranged on described rotating shaft wherein also elastic elements between the bearing of one end and end cap.
Preferably, stator and casing is also comprised; Adopt interference fit between described stator and described casing, fixed by holding screw in the radial direction.
Preferably, at the sheathed magnet steel of the outer round surface of described rotating shaft; At the sheathed rotor jacket of the outer round surface of described magnet steel, described magnet steel and described rotor jacket are interference fit.
Preferably, described magnet steel is bonded in the outer round surface of described rotating shaft.
Anti-high impact overload motor provided by the invention has the following advantages:
Anti-high impact overload motor provided by the invention, improves end cap, changes the keeper of location bearing inner ring and the contact site of bearing, when bearing is installed to after in the bearing chamber of end cap, and keeper location bearing inner ring; And bearing outer ring and end cap inwall matched in clearance; Therefore, when motor axial load factor, under the impact force action that rotor produces, bearing only has inner ring stressed, and outer ring does not stress, therefore, the ball of bearing and raceway also stressed hardly, so bearing is less likely to occur to destroy, and then improves the anti-high impact overload performance of whole motor.
Accompanying drawing explanation
The structural representation of the motor that Fig. 1 provides for prior art;
Fig. 2 is the partial enlarged drawing of II part in Fig. 1;
Fig. 3 is the structural representation of anti-high impact overload motor provided by the invention;
Fig. 4 is the partial enlarged drawing of I part in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figure 3,4, the invention provides a kind of anti-high impact overload motor, comprising: there is the rotor of rotating shaft 8, end cap 1 and bearing 3; Wherein, be provided with the bearing chamber of setting-in bearing in end cap, bearing to be arranged in rotating shaft and to be positioned at bearing chamber; In bearing chamber, be also provided with the keeper of axial location bearing inner race, the end face of keeper and bearing inner race B is close together, and, bearing outer ring
abe matched in clearance with bearing chamber.The specific constructive form of the present invention to keeper does not limit, every parts with location bearing inner ring are all within scope, and such as, keeper can be boss, this boss and end cap integrated design, the end face of boss and bearing inner race is close together; Or keeper is a pad, and pad is arranged between end cap and the end face of bearing inner race, the end face of pad and bearing inner race is close together.In addition, the present invention does not limit the concrete model of motor and type, and such as, can be brushless, permanently excited direct current motor, also can be all kinds of generators etc.
In addition, in practical application, the quantity of end cap and bearing is respectively two; A bearing and an end cap supporting with this bearing are installed respectively at the two ends of rotating shaft; Be arranged on rotating shaft wherein also preferred elastic elements 6 between the bearing of one end and end cap, when motor axial load factor, the impulsive force produced by flexible member dampen rotor, prevents end cap failures.In addition, only in one end elastic elements of rotating shaft, instead of in the equal elastic elements in rotating shaft two ends, reason is: when motor axial load factor, general is all only have a direction to bear very large impulsive force, the power that oppositely withstands shocks is less, therefore, if be subject to one end elastic elements of impulsive force compared with general orientation, then flexible member is very easy to destroy, so, in the present invention, only in one end elastic elements of bearing less impulsive force direction.In addition, for reducing the overall weight of motor, end cap and casing can adopt aluminum alloy materials.
In addition, the present invention also takes following two kinds of ancillary methods, thus improves the anti-high impact overload performance of motor: adopt interference fit between (one) stator 4 and casing 2, fixed in the radial direction by holding screw; In addition, fixed by straight pin 9 between casing 2 and end cap 1.。(2) at the sheathed magnet steel 7 of the outer round surface of rotating shaft, magnet steel can be bonded in the outer round surface of rotating shaft securely by high-temp glue, thus ensures that magnet steel axial displacement does not occur when high impact overload; At the sheathed rotor jacket 5 of the outer round surface of magnet steel, magnet steel and rotor jacket are interference fit, thus make magnet steel be subject to suitable pretightning force, bear impact suffered when radial direction is transshipped to reduce magnet steel.
In sum, anti-high impact overload motor provided by the invention, improves end cap, changes the keeper of location bearing inner ring and the contact site of bearing, when bearing is installed to after in the bearing chamber of end cap, and keeper location bearing inner ring; And bearing outer ring and end cap inwall matched in clearance; Therefore, when motor axial load factor, under the impact force action that rotor produces, bearing only has inner ring stressed, and outer ring does not stress, therefore, the ball of bearing and raceway also stressed hardly, so bearing is less likely to occur to destroy, and then improves the anti-high impact overload performance of whole motor.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should look protection scope of the present invention.
Claims (6)
1. an anti-high impact overload motor, is characterized in that, comprising: have the rotor of rotating shaft, end cap and bearing; Wherein, be provided with the bearing chamber of bearing described in setting-in in described end cap, described bearing to be arranged in described rotating shaft and to be positioned at described bearing chamber; In described bearing chamber, be also provided with the keeper of axial location bearing inner race, the end face of described keeper and bearing inner race is close together, and bearing outer ring and described bearing chamber are matched in clearance.
2. anti-high impact overload motor according to claim 1, is characterized in that, described keeper is boss.
3. anti-high impact overload motor according to claim 1, is characterized in that, the quantity of described end cap and described bearing is respectively two; A bearing and an end cap supporting with this bearing are installed respectively at the two ends of described rotating shaft; Be arranged on described rotating shaft wherein also elastic elements between the bearing of one end and end cap.
4. anti-high impact overload motor according to claim 1, is characterized in that, also comprise stator and casing; Adopt interference fit between described stator and described casing, fixed by holding screw in the radial direction.
5. anti-high impact overload motor according to claim 1, is characterized in that, at the sheathed magnet steel of the outer round surface of described rotating shaft; At the sheathed rotor jacket of the outer round surface of described magnet steel, described magnet steel and described rotor jacket are interference fit.
6. anti-high impact overload motor according to claim 5, it is characterized in that, described magnet steel is bonded in the outer round surface of described rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418947.XA CN104218721A (en) | 2013-09-13 | 2013-09-13 | High-impact-resistant overload motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418947.XA CN104218721A (en) | 2013-09-13 | 2013-09-13 | High-impact-resistant overload motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104218721A true CN104218721A (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310418947.XA Pending CN104218721A (en) | 2013-09-13 | 2013-09-13 | High-impact-resistant overload motor |
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| CN (1) | CN104218721A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070059A (en) * | 2017-04-20 | 2017-08-18 | 黄河科技学院 | Anti- axial high impact overload motor |
| CN107131286A (en) * | 2017-06-29 | 2017-09-05 | 佛山市威灵洗涤电机制造有限公司 | Driving member mounting structure and household electrical appliance |
| CN109149844A (en) * | 2018-10-19 | 2019-01-04 | 核心驱动科技（金华）有限公司 | Disc type electric machine and its fixed structure of rotor |
| WO2019090939A1 (en) * | 2017-11-13 | 2019-05-16 | 格力电器（武汉）有限公司 | Bearing installation and fixation structure and compressor |
| CN111030356A (en) * | 2019-12-26 | 2020-04-17 | 陕西宝成航空仪表有限责任公司 | Bearing support structure suitable for high acceleration overload condition |
| CN111277070A (en) * | 2018-12-04 | 2020-06-12 | 佛山市威灵洗涤电机制造有限公司 | Motor and electric pump |
| CN115842430A (en) * | 2023-03-01 | 2023-03-24 | 广州市瑞宝电器有限公司 | High-strength impact-resistant outer rotor direct-current brushless motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549207A (en) * | 1991-08-07 | 1993-02-26 | Fuji Electric Co Ltd | Radial ball bearing device provided with resistance to shock |
| US20020190598A1 (en) * | 1999-05-06 | 2002-12-19 | Bartman Daniel E. | Alternator |
| CN102710084A (en) * | 2012-06-20 | 2012-10-03 | 昆山库克自动化科技有限公司 | Brushless direct-current motor resisting axial impact force |
| CN202957684U (en) * | 2012-11-13 | 2013-05-29 | 北京自动化控制设备研究所 | Permanent magnet synchronous motor |
| CN203481977U (en) * | 2013-09-13 | 2014-03-12 | 黄河科技学院 | Anti-high impact overload motor |
-
2013
- 2013-09-13 CN CN201310418947.XA patent/CN104218721A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549207A (en) * | 1991-08-07 | 1993-02-26 | Fuji Electric Co Ltd | Radial ball bearing device provided with resistance to shock |
| US20020190598A1 (en) * | 1999-05-06 | 2002-12-19 | Bartman Daniel E. | Alternator |
| CN102710084A (en) * | 2012-06-20 | 2012-10-03 | 昆山库克自动化科技有限公司 | Brushless direct-current motor resisting axial impact force |
| CN202957684U (en) * | 2012-11-13 | 2013-05-29 | 北京自动化控制设备研究所 | Permanent magnet synchronous motor |
| CN203481977U (en) * | 2013-09-13 | 2014-03-12 | 黄河科技学院 | Anti-high impact overload motor |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070059A (en) * | 2017-04-20 | 2017-08-18 | 黄河科技学院 | Anti- axial high impact overload motor |
| CN107070059B (en) * | 2017-04-20 | 2023-04-25 | 黄河科技学院 | Axial high impact overload resistant motor |
| CN107131286A (en) * | 2017-06-29 | 2017-09-05 | 佛山市威灵洗涤电机制造有限公司 | Driving member mounting structure and household electrical appliance |
| WO2019090939A1 (en) * | 2017-11-13 | 2019-05-16 | 格力电器（武汉）有限公司 | Bearing installation and fixation structure and compressor |
| US11280343B2 (en) | 2017-11-13 | 2022-03-22 | Gree Electric Appliances (Wuhan) Co., Ltd | Bearing installation and fixation structure and compressor |
| CN109149844A (en) * | 2018-10-19 | 2019-01-04 | 核心驱动科技（金华）有限公司 | Disc type electric machine and its fixed structure of rotor |
| CN109149844B (en) * | 2018-10-19 | 2024-04-02 | 浙江盘毂动力科技有限公司 | Disk motor and rotor fixing structure thereof |
| CN111277070A (en) * | 2018-12-04 | 2020-06-12 | 佛山市威灵洗涤电机制造有限公司 | Motor and electric pump |
| CN111277070B (en) * | 2018-12-04 | 2022-05-03 | 佛山市威灵洗涤电机制造有限公司 | Motor and electric pump |
| CN111030356A (en) * | 2019-12-26 | 2020-04-17 | 陕西宝成航空仪表有限责任公司 | Bearing support structure suitable for high acceleration overload condition |
| CN115842430A (en) * | 2023-03-01 | 2023-03-24 | 广州市瑞宝电器有限公司 | High-strength impact-resistant outer rotor direct-current brushless motor |
| CN115842430B (en) * | 2023-03-01 | 2023-04-18 | 广州市瑞宝电器有限公司 | High-strength impact-resistant outer rotor direct-current brushless motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151111 Address after: Branch of Beijing economic and Technological Development Zone fourteen Beijing City 99 street 101111 No. 2 Building 3 layer 304 Applicant after: BEIJING CHINA STAR TECHNOLOGY CO., LTD. Address before: 450006 Zhengzhou City, Henan province Navigation Road No. 94 Applicant before: Huanghe S & T College Applicant before: BEIJING CHINA STAR TECHNOLOGY CO., LTD. Applicant before: CHINA STAR TECHNOLOGY ELECTRONICS LTD. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141217 |
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| RJ01 | Rejection of invention patent application after publication |