CN106451891A - Shaft current preventing motor end cover - Google Patents
Shaft current preventing motor end cover Download PDFInfo
- Publication number
- CN106451891A CN106451891A CN201610761306.8A CN201610761306A CN106451891A CN 106451891 A CN106451891 A CN 106451891A CN 201610761306 A CN201610761306 A CN 201610761306A CN 106451891 A CN106451891 A CN 106451891A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- shaft current
- mounting groove
- motor end
- perforation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a shaft current preventing motor end cover, not only can solve the technical problem that shaft current is easily formed by the existing motor end cover, but also can solve the technical problem of noise generated by vibration. The shaft current preventing motor end cover comprises a cover body; the shaft current preventing motor end cover is characterized by also comprising a bearing chamber supporting insert, wherein the bearing chamber supporting insert comprises a sleeve, and an annular turning edge which extends inwardly from an opening in the upper end of the sleeve; a mounting groove, which is formed coaxially with an axle hole, is formed in the lower end of the cover body; the sleeve is in threaded connection in the mounting groove; the annular turning edge props against the upper end plane of the mounting groove; an insulating bearing seat for coating the inner circumferential surface of the sleeve and the lower end plane of the annular turning edge is formed in an inner cavity of the bearing chamber supporting insert in an injection molding manner; filling grooves are formed in the outer circumferential surface of the sleeve and the upper end plane of the turning edge respectively; through holes connected with the inner cavity of the sleeve and the filling grooves are formed in the sleeve and the turning edge; and a filling part and a connecting part matched with the filling grooves and the through holes are formed in the insulating bearing seat.
Description
Technical field
The present invention relates to machine field is and in particular to the electric motor end cap of anti-shaft current.
Background technology
Existing electric motor end cap offers bearing chamber in centre, and bearing chamber is used for installing bearing, but this electric motor end cap
Lack the design of anti-shaft current, easily form shaft current between electric motor end cap, bearing and rotating shaft, shaft current can have a strong impact on axle
Hold the service life with motor, there is potential safety hazard in use, reliability is relatively low.Some electric motor end caps are in bearing chamber
Inwall nesting is provided with insulating sleeve, and insulating sleeve is fixedly connected with end cap by flange and projection, and this structure is not only assembled
Relatively complicated, higher to the fitted position requirement of each part, and between insulating sleeve, flange and the faying face of electric motor end cap easily
Produce gap, lead to during motor work because vibration produces noise.
Content of the invention
For the problems referred to above, the invention provides the electric motor end cap of anti-shaft current, it can not only solve existing motor
End cap easily forms the technical problem of shaft current moreover it is possible to solve to produce the technical problem of noise because of vibration.
Its technical scheme is such, it include lid it is characterised in that：It also includes bearing chamber and supports mold insert, described
Bearing chamber supports mold insert to include sleeve and the annular flange extending internally from sleeve upper end open, and described lid lower end sets
There is the mounting groove being coaxially disposed with axis hole, described bush whorl is connected in described mounting groove, described annular flange is against installation
The upper surface of groove, described bearing chamber supports the injection of mold insert inner chamber to be formed with the exhausted of cladding sleeve inner peripheral surface and annular flange lower surface
Edge bearing block；
On described sleeve outer peripheral face, on described flange upper surface, it is respectively equipped with filling slot, described sleeve, described flange are provided with even
Logical barrel bore and the perforation of filling slot, described insulated bearing pedestal be formed with described filling slot, perforation cooperation filling part and
Connecting portion.
Further, radially outside is extended and is threadeded with mounting groove the upper/lower terminal difference of described sleeve.
Further, described perforation is respectively arranged at two ends with bellmouth tapered from outside to inside, and the height of described bellmouth is
/ 2nd of perforation height.
The electric motor end cap of the present invention, bearing chamber supports mold insert to be threadedly connected in mounting groove, and insulated bearing pedestal injection is formed
In bearing chamber support mold insert in it can be ensured that with bearing chamber support mold insert fit tightly, it is to avoid the generation in gap, so avoid because
Vibration produces noise；Perforation and the setting of filling slot, enable to insulated bearing pedestal and are formed during injection mo(u)lding and fill out
Fill groove, the filling part of perforation cooperation and connecting portion, it is possible to increase insulated bearing pedestal supports the bonding strength of mold insert with bearing chamber.
Brief description
Fig. 1 is the structural representation of the present invention.
Specific embodiment
As shown in figure 1, it includes lid 1, its also include bearing chamber support mold insert, bearing chamber support mold insert include sleeve 2,
And the annular flange 3 extending internally from sleeve upper end open, lid 1 lower end is provided with the mounting groove being coaxially disposed with axis hole,
Radially outside is extended and is threadeded with mounting groove the upper/lower terminal difference of sleeve 2, and annular flange 3 is upper against mounting groove
End face, bearing chamber supports the injection of mold insert inner chamber to be formed with cladding sleeve inner peripheral surface and the insulated bearing pedestal 6 of annular flange lower surface,
Insulated bearing pedestal 6 upper end is connected with axis hole, and axis hole is the through hole with the cooperation of rotor axle head with setting on electric motor end cap；
Be respectively equipped with filling slot 4,5 on sleeve outer peripheral face, on flange upper surface, sleeve, flange are communicated with barrel bore and
The perforation 7 of filling slot, insulated bearing pedestal is formed with and filling slot, the filling part of perforation cooperation and connecting portion；Specifically, perforation two
End is respectively equipped with bellmouth tapered from outside to inside, and the height of bellmouth is 1/2nd of perforation height, the setting of bellmouth
It is easy to feed liquid in injection moulding process and be full of filling slot.
In figure 8 is location hole, is easy to the positioning assembling of electric motor end cap and motor cabinet.
Claims (3)
1. the electric motor end cap of anti-shaft current, it include lid it is characterised in that：It also includes bearing chamber and supports mold insert, described axle
Holding room supports mold insert to include sleeve and the annular flange extending internally from sleeve upper end open, and described lid lower end is provided with
The mounting groove being coaxially disposed with axis hole, described bush whorl is connected in described mounting groove, described annular flange is against mounting groove
Upper surface, described bearing chamber supports the injection of mold insert inner chamber to be formed with cladding sleeve inner peripheral surface and the insulation of annular flange lower surface
Bearing block；
On described sleeve outer peripheral face, on described flange upper surface, it is respectively equipped with filling slot, described sleeve, described flange are provided with even
Logical barrel bore and the perforation of filling slot, described insulated bearing pedestal be formed with described filling slot, perforation cooperation filling part and
Connecting portion.
2. anti-shaft current according to claim 1 electric motor end cap it is characterised in that：The upper/lower terminal of described sleeve divides
Radially outside is not extended and is threadeded with mounting groove.
3. anti-shaft current according to claim 2 electric motor end cap it is characterised in that：Described perforation be respectively arranged at two ends with by
Outer and interior tapered bellmouth, the height of described bellmouth is 1/2nd of perforation height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761306.8A CN106451891A (en) | 2016-08-31 | 2016-08-31 | Shaft current preventing motor end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761306.8A CN106451891A (en) | 2016-08-31 | 2016-08-31 | Shaft current preventing motor end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106451891A true CN106451891A (en) | 2017-02-22 |
Family
ID=58090310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610761306.8A Pending CN106451891A (en) | 2016-08-31 | 2016-08-31 | Shaft current preventing motor end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451891A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010014545A1 (en) * | 1999-12-24 | 2001-08-16 | Kenji Ito | Electrical pittingproof rolling bearing |
| JP2002286042A (en) * | 2002-02-05 | 2002-10-03 | Nsk Ltd | Manufacturing device of electrolytic corrosion preventing rolling bearing |
| CN200973040Y (en) * | 2006-10-24 | 2007-11-07 | 上海南洋电机有限公司 | Insulation bearing sleeve for motor |
| CN202586587U (en) * | 2012-04-25 | 2012-12-05 | 北京三一电机系统有限责任公司 | Insulation flameproof end cover for motors and motor |
| CN102857014A (en) * | 2012-09-17 | 2013-01-02 | 西安正麒电气有限公司 | Motor insulation bearing chamber |
| CN202798276U (en) * | 2012-08-24 | 2013-03-13 | 无锡华达电机有限公司 | Exposed motor insulation end cover |
| CN202872549U (en) * | 2012-11-02 | 2013-04-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor end cover |
| CN205986442U (en) * | 2016-08-31 | 2017-02-22 | 无锡太昌精密机械有限公司 | Shaft current resistant motor end cover |
-
2016
- 2016-08-31 CN CN201610761306.8A patent/CN106451891A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010014545A1 (en) * | 1999-12-24 | 2001-08-16 | Kenji Ito | Electrical pittingproof rolling bearing |
| JP2002286042A (en) * | 2002-02-05 | 2002-10-03 | Nsk Ltd | Manufacturing device of electrolytic corrosion preventing rolling bearing |
| CN200973040Y (en) * | 2006-10-24 | 2007-11-07 | 上海南洋电机有限公司 | Insulation bearing sleeve for motor |
| CN202586587U (en) * | 2012-04-25 | 2012-12-05 | 北京三一电机系统有限责任公司 | Insulation flameproof end cover for motors and motor |
| CN202798276U (en) * | 2012-08-24 | 2013-03-13 | 无锡华达电机有限公司 | Exposed motor insulation end cover |
| CN102857014A (en) * | 2012-09-17 | 2013-01-02 | 西安正麒电气有限公司 | Motor insulation bearing chamber |
| CN202872549U (en) * | 2012-11-02 | 2013-04-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor end cover |
| CN205986442U (en) * | 2016-08-31 | 2017-02-22 | 无锡太昌精密机械有限公司 | Shaft current resistant motor end cover |
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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 | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20190726 |