CN103532288A - Bearing preloading device for electric motor - Google Patents
Bearing preloading device for electric motor Download PDFInfo
- Publication number
- CN103532288A CN103532288A CN201310504492.3A CN201310504492A CN103532288A CN 103532288 A CN103532288 A CN 103532288A CN 201310504492 A CN201310504492 A CN 201310504492A CN 103532288 A CN103532288 A CN 103532288A
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- Prior art keywords
- bearing
- motor
- cover
- end cover
- shim
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Abstract
The invention relates to a bearing preloading device for an electric motor. The bearing preloading device comprises a motor shaft, a bearing outer cover, an end cover, a bearing and a bearing inner cover, wherein the bearing inner cover is mounted on the motor shaft; the bearing supports the motor shaft; the end cover is fixed on an outer ring of the bearing; the bearing outer cover is mounted in the end cover; and the bearing outer cover and the bearing inner cover are connected and fixed by using hexagon bolts. The bearing preloading device is characterized by further comprising bearing springs and a bearing gasket; four bearing springs are mounted on the bearing outer cover of the motor; the bearing gasket is mounted on the outer side of the bearing; and the bearing springs are contacted with the bearing gasket. According to the bearing preloading device, the structure is simple and reasonable, the assembly is convenient, few parts exist, and on the basis that any assembling manner of an original electric motor is not changed, four circular holes used for installing the bearing springs are formed in the bearing outer cover, so that the preloading function for the bearing of the electric motor can be realized more conveniently.
Description
Technical field
The present invention relates to a kind of bearing pre-tightening device, especially a kind of motor bearing pre-tightening device.
Background technology
Bearing is as the interface unit of stationary part in motor and rotating part, and quality and the working order in use of its quality will directly determine the life-span of motor, and bearing fault will account for more than 1/2 in whole faults of motor.And give bearing shaft, to applying certain pretightning force, be the effective measures that effectively prevent bearing damage; also can reduce vibration and the noise of motor simultaneously; most of motor of now domestic production be all adopt wavy spring sheet to bearing shaft to applying pretightning force; thereby motor bearings is played a protective role; also can make the life-span of motor greatly extend; but along with the high continuous increase of motor center in recent years, the bearing using in motor is also increasing, and original wavy spring sheet cannot meet instructions for use.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, thereby provide a kind of, can effectively prevent that motor bearings from breaking down, the bearing pre-tightening device that greatly extends the useful life of motor.
According to technical scheme provided by the invention, a kind of motor bearing pre-tightening device, comprises motor shaft, bearing end cover, end cap, bearing and internal bearing cover; Described internal bearing cover is contained on motor shaft, bearings motor shaft, and described end cap is fixed on the outer ring of bearing, and described bearing end cover packs in end cap, with hex bolts, bearing end cover and internal bearing cover is connected and fixed; Feature is: also comprise carriage spring, bearing shim, four carriage springs are housed on the bearing end cover of described motor, in bearing outside, bearing shim is housed, carriage spring contacts with bearing shim.
As a further improvement on the present invention, described bearing shim outside dimension and bearing outer ring are measure-alike, and internal diameter size is greater than bearing inner race.
As a further improvement on the present invention, on described bearing end cover, evenly offer four for the circular hole of carriage spring is installed.
As a further improvement on the present invention, described bearing shim material is steel plate.
The present invention compared with the prior art, advantage is: the present invention is simple and reasonable for structure, easy to assembly, parts are few, on the basis of any assembling mode that does not change former motor, only, by processing four for the circular hole of carriage spring is installed on bearing end cover, just can realize eaily the pretension effect to bearing of motor.
Accompanying drawing explanation
Fig. 1 is integral installation distribution structure schematic diagram of the present invention.
Fig. 2 is integral installation distribution structure end view of the present invention.
Fig. 3 is bearing end cover structural representation of the present invention.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described:
As shown in Figure 1-Figure 3, the present invention includes motor shaft 1, bearing end cover 2, carriage spring 3, hex bolts 8 that for pretension, bearing shim 4, end cap 5, bearing 6, internal bearing cover 7, connection bearing enclosing cover and inner cap are used.
Pretension of the present invention is steel plate with bearing shim 4 materials, and outside dimension and bearing outer ring are measure-alike, and internal diameter size is larger than bearing inner race.
On bearing end cover 2 of the present invention, evenly offer four for the circular hole of carriage spring is installed.
The present invention is first contained in internal bearing cover 7 on motor shaft 1, again bearing 6 is fixed on to the relevant position of axle 1, bearing 6 is for support motor axle 1, on the bearing end cover 2 of existing motor, evenly offer four circular holes, four carriage springs 3 are arranged in four circular holes, in bearing 6 outsides, put into bearing shim 4 for pretension, end cap 5 is fixed on the outer rim of bearing 6, then bearing end cover 2 is packed in end cap 5, carriage spring 3 is rationally contacted with bearing shim 4, finally with hex bolts 8, bearing end cover 2 and internal bearing cover 7 are connected.
The present invention, on the basis of any assembling mode that does not change former motor, only, by processing four for the circular hole of carriage spring is installed on bearing end cover, just can realize the pretension effect to bearing of motor eaily.
Claims (4)
1. a motor bearing pre-tightening device, comprises motor shaft (1), bearing end cover (2), end cap (5), bearing (6) and internal bearing cover (7); Described internal bearing cover (7) is contained on motor shaft (1), bearing (6) support motor axle (1), described end cap (5) is fixed on the outer ring of bearing (6), described bearing end cover (2) packs in end cap (5), with hex bolts (8), bearing end cover (2) and internal bearing cover (7) is connected and fixed; It is characterized in that: also comprise carriage spring (3), bearing shim (4), four carriage springs (3) are housed on the bearing end cover of described motor (2), in bearing (6) outside, bearing shim (4) is housed, carriage spring (3) contacts with bearing shim (4).
2. a kind of motor bearing pre-tightening device as claimed in claim 1, is characterized in that: described bearing shim (4) outside dimension and bearing (6) outer ring are measure-alike, and internal diameter size is greater than bearing inner race.
3. a kind of motor bearing pre-tightening device as claimed in claim 1, is characterized in that: on described bearing end cover (2), evenly offer four for the circular hole of carriage spring is installed.
4. a kind of motor bearing pre-tightening device as claimed in claim 1, is characterized in that: described bearing shim (4) material is steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504492.3A CN103532288A (en) | 2013-10-23 | 2013-10-23 | Bearing preloading device for electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504492.3A CN103532288A (en) | 2013-10-23 | 2013-10-23 | Bearing preloading device for electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103532288A true CN103532288A (en) | 2014-01-22 |
Family
ID=49934065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310504492.3A Pending CN103532288A (en) | 2013-10-23 | 2013-10-23 | Bearing preloading device for electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103532288A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756373A (en) * | 2014-06-30 | 2015-07-01 | 深圳市大疆创新科技有限公司 | Pan-tilt motor and pan-tilt |
| CN110159661A (en) * | 2019-04-16 | 2019-08-23 | 深圳市速腾聚创科技有限公司 | The bearing pre-tightening structure of mechanical laser radar |
| CN114775191A (en) * | 2022-05-12 | 2022-07-22 | 平邑县中顺纺织机械有限公司 | Yarn cleaning mechanism for spinning processing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020047395A1 (en) * | 2000-07-27 | 2002-04-25 | Hiroshi Hioki | Motor with a shaft supported by ball bearings |
| CN101951059A (en) * | 2010-10-15 | 2011-01-19 | 无锡哈电电机有限公司 | High-voltage motor rolling bearing |
| CN201860198U (en) * | 2010-10-29 | 2011-06-08 | 无锡哈电电机有限公司 | Axial pre-tightening structure for rolling bearing |
| CN203554157U (en) * | 2013-10-23 | 2014-04-16 | 中达电机股份有限公司 | A bearing preloading device for an electromotor |
-
2013
- 2013-10-23 CN CN201310504492.3A patent/CN103532288A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020047395A1 (en) * | 2000-07-27 | 2002-04-25 | Hiroshi Hioki | Motor with a shaft supported by ball bearings |
| CN101951059A (en) * | 2010-10-15 | 2011-01-19 | 无锡哈电电机有限公司 | High-voltage motor rolling bearing |
| CN201860198U (en) * | 2010-10-29 | 2011-06-08 | 无锡哈电电机有限公司 | Axial pre-tightening structure for rolling bearing |
| CN203554157U (en) * | 2013-10-23 | 2014-04-16 | 中达电机股份有限公司 | A bearing preloading device for an electromotor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756373A (en) * | 2014-06-30 | 2015-07-01 | 深圳市大疆创新科技有限公司 | Pan-tilt motor and pan-tilt |
| CN110159661A (en) * | 2019-04-16 | 2019-08-23 | 深圳市速腾聚创科技有限公司 | The bearing pre-tightening structure of mechanical laser radar |
| CN114775191A (en) * | 2022-05-12 | 2022-07-22 | 平邑县中顺纺织机械有限公司 | Yarn cleaning mechanism for spinning processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |