CN203481977U - Anti-high impact overload motor - Google Patents
Anti-high impact overload motor Download PDFInfo
- Publication number
- CN203481977U CN203481977U CN201320571708.3U CN201320571708U CN203481977U CN 203481977 U CN203481977 U CN 203481977U CN 201320571708 U CN201320571708 U CN 201320571708U CN 203481977 U CN203481977 U CN 203481977U
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- bearing
- high impact
- rotating shaft
- end cap
- motor
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- Expired - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Provided in the utility model is an anti-high impact overload motor comprising a rotor having a rotating shaft, an end cover and a bearing. A bearing chamber for embedding of the bearing is arranged in the end cover; and the bearing is installed at the rotating shaft and is arranged in the bearing chamber. A positioning element for axial positioning of a bearing inner ring is also arranged in the bearing chamber and the positioning element and the end surface of the bearing inner ring are tightly contacted; and the outer ring of the bearing and the bearing chamber are in clearance fit. According to the scheme of the anti-high impact overload motor, the end cover is improved and the portion of contact of the positioning element for bearing inner ring positioning with the bearing is changed. After the bearing is installed in the bearing chamber of the end cover, the positioning element carries out positioning on the bearing inner ring and the bearing outer ring and the end cover inner wall are in clearance fit. Therefore, when axial overloading of the motor occurs, only the inner ring of the bearing is affected by forces and the outer ring is not carried by any force under the effect of the impact force generated by the rotor, and thus the ball and the rolling way of the bearing are not affected by any force almost, so that the bearing is not damaged easily and thus the anti-high impact overloading performance of the whole motor is further improved.
Description
Technical field
The utility model relates to a kind of motor, is 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 devices such as blower fan, water pump, compressor, lathe.Along with the continuous progress of China's science and technology, the indexs such as the environmental suitability of motor, reliability have also been proposed to more and more harsher requirement.Especially for some specific area, the anti-high impact overload performance of motor has been proposed to very high requirement.
The structure of existing motor is generally: as shown in Figure 1, 2, at the two ends of rotor shaft 3, a bearing 2 is installed respectively, 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 producing at rotor, bearing outer ring is delivered to bearing inner race by ball by power, when serious, force that bearing ball departs from raceway, Internal and external cycle is separated and destroy, and then reduced the anti-high impact overload performance of whole motor, be difficult to meet at specific area the requirement to motor performance.
Utility model content
The defect existing for prior art, the utility model provides a kind of anti-high impact overload motor, has stronger anti-high impact overload performance.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of anti-high impact overload motor, comprising: rotor, end cap and the bearing with rotating shaft; Wherein, be provided with the bearing chamber of bearing described in setting-in in described end cap, described bearing is arranged in described rotating shaft and is 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; At the two ends of described rotating shaft, install respectively a bearing and with the supporting end cap of this bearing; Be arranged on wherein elastic elements also between the bearing of one end and end cap of described rotating shaft.
Preferably, also comprise stator and casing; Between described stator and described casing, adopt interference fit, by holding screw, fix in the radial direction.
Preferably, at the sheathed magnet steel of outer round surface of described rotating shaft; At the sheathed rotor jacket of 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.
The anti-high impact overload motor that the utility model provides has the following advantages:
The anti-high impact overload motor that the utility model provides, improves end cap, changes the keeper of location bearing inner ring and the contact site of bearing, after bearing is installed 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 producing at rotor, bearing only has inner ring stressed, and outer ring does not stress, therefore, the ball of bearing and raceway are also stressed hardly, so bearing is not easy to destroy, and then improved 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;
The structural representation of the anti-high impact overload motor that Fig. 3 provides for the utility model;
Fig. 4 is the partial enlarged drawing of I part in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
As shown in Figure 3,4, the utility model provides a kind of anti-high impact overload motor, comprising: rotor, end cap 1 and the bearing 3 with rotating shaft 8; Wherein, be provided with the bearing chamber of setting-in bearing in end cap, bearing is arranged in rotating shaft and is 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
awith bearing chamber be matched in clearance.The utility model does not limit the specific constructive form of keeper, every parts with location bearing inner ring are all within the utility model protection range, and for example, 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, pad is arranged between end cap and the end face of bearing inner race, and the end face of pad and bearing inner race is close together.In addition, the utility model does not limit concrete model and the type of motor, for example, can be brushless, permanently excited direct current motor, can be all kinds of generators etc. yet.
In addition, in practical application, the quantity of end cap and bearing is respectively two; At the two ends of rotating shaft, install respectively a bearing and with the supporting end cap of this bearing; Be arranged on wherein preferred elastic elements 6 also between the bearing of one end and end cap of rotating shaft, when motor axial load factor, by flexible member, cushion the impulsive force that rotor produces, prevent that end cap from destroying.In addition, only in one end of rotating shaft elastic elements, rather than in the equal elastic elements in rotating shaft two ends, former because: when motor axial load factor, general is all to only have a direction to bear very large impulsive force, the power that oppositely withstands shocks is less, therefore, if be subject to impulsive force compared with one end elastic elements of general orientation, flexible member is very easy to destroy, so, in the utility model, only bearing one end elastic elements of 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 utility model is also taked following two kinds of ancillary methods, thereby improves the anti-high impact overload performance of motor: between (one) stator 4 and casing 2, adopt interference fit, fix in the radial direction by holding screw; In addition, fixing by straight pin 9 between casing 2 and end cap 1.。(2) at the sheathed magnet steel 7 of outer round surface of rotating shaft, magnet steel can be bonded in securely by high-temp glue the outer round surface of rotating shaft, thereby guarantees that axial displacement does not occur magnet steel when high impact overload; At the sheathed rotor jacket 5 of outer round surface of magnet steel, magnet steel and rotor jacket are interference fit, thereby make magnet steel be subject to suitable pretightning force, to reduce magnet steel, bear impact suffered while radially transshipping.
In sum, the anti-high impact overload motor that the utility model provides, improves end cap, changes the keeper of location bearing inner ring and the contact site of bearing, after bearing is installed 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 producing at rotor, bearing only has inner ring stressed, and outer ring does not stress, therefore, the ball of bearing and raceway are also stressed hardly, so bearing is not easy to destroy, and then improved the anti-high impact overload performance of whole motor.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection range of the present utility model.
Claims (6)
1. an anti-high impact overload motor, is characterized in that, comprising: rotor, end cap and the bearing with rotating shaft; Wherein, be provided with the bearing chamber of bearing described in setting-in in described end cap, described bearing is arranged in described rotating shaft and is 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; At the two ends of described rotating shaft, install respectively a bearing and with the supporting end cap of this bearing; Be arranged on wherein elastic elements also between the bearing of one end and end cap of described rotating shaft.
4. anti-high impact overload motor according to claim 1, is characterized in that, also comprises stator and casing; Between described stator and described casing, adopt interference fit, by holding screw, fix in the radial direction.
5. anti-high impact overload motor according to claim 1, is characterized in that, at the sheathed magnet steel of outer round surface of described rotating shaft; At the sheathed rotor jacket of 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, 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 |
|---|---|---|---|
| CN201320571708.3U CN203481977U (en) | 2013-09-13 | 2013-09-13 | Anti-high impact overload motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320571708.3U CN203481977U (en) | 2013-09-13 | 2013-09-13 | Anti-high impact overload motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203481977U true CN203481977U (en) | 2014-03-12 |
Family
ID=50230229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320571708.3U Expired - Fee Related CN203481977U (en) | 2013-09-13 | 2013-09-13 | Anti-high impact overload motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203481977U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218721A (en) * | 2013-09-13 | 2014-12-17 | 黄河科技学院 | High-impact-resistant overload motor |
| CN107888011A (en) * | 2017-12-19 | 2018-04-06 | 杭州精导智能科技有限公司 | Anti- super high impact overload motor and method |
| CN111799927A (en) * | 2020-07-17 | 2020-10-20 | 珠海格力电器股份有限公司 | Rotating shaft supporting and protecting structure, magnetic suspension bearing supporting system and motor |
-
2013
- 2013-09-13 CN CN201320571708.3U patent/CN203481977U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218721A (en) * | 2013-09-13 | 2014-12-17 | 黄河科技学院 | High-impact-resistant overload motor |
| CN107888011A (en) * | 2017-12-19 | 2018-04-06 | 杭州精导智能科技有限公司 | Anti- super high impact overload motor and method |
| CN111799927A (en) * | 2020-07-17 | 2020-10-20 | 珠海格力电器股份有限公司 | Rotating shaft supporting and protecting structure, magnetic suspension bearing supporting system and motor |
| CN111799927B (en) * | 2020-07-17 | 2023-03-24 | 珠海格力电器股份有限公司 | Rotating shaft supporting and protecting structure, magnetic suspension bearing supporting system and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20190913 |