CN2932811Y - Motor self-aligning bearing seat with coatings - Google Patents
Motor self-aligning bearing seat with coatings Download PDFInfo
- Publication number
- CN2932811Y CN2932811Y CN 200620091846 CN200620091846U CN2932811Y CN 2932811 Y CN2932811 Y CN 2932811Y CN 200620091846 CN200620091846 CN 200620091846 CN 200620091846 U CN200620091846 U CN 200620091846U CN 2932811 Y CN2932811 Y CN 2932811Y
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- CN
- China
- Prior art keywords
- coating
- bearing seat
- aligning bearing
- utility
- model
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- 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.)
- Expired - Fee Related
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- Coating By Spraying Or Casting (AREA)
Abstract
The utility model relates to a generator aligning bearing seat with a costing, characterized in that a coating used to prevent the generating of the shaft current is spayed in the inner surface of the generator aligning bearing seat. Compared to the prior art, the utility model has the advantages that it breaks through the prior mucosa process, the coating sprayed by spraying technology can effectively prevent the generating of the shaft current, the process is simple and convenient, the thickness of the coating is uniform and controlled, the coating and the substrate have a high adhesive force, the coating has good mechanical property and insulating property, no lubrication material is needed, and the utility model has high wear resistance, low noise and no pollution.
Description
Technical field
The utility model relates to the coating that the motor regulating center bearing base inner surface place prevents that shaft current from producing.
Background technology
During the large and middle size motor operation,, thereby adopt self-aligning bearing because load and variation of temperature cause different amounts of deflection.During operation, because magnetic resistance change rate, when the pulsation magnetic flux passes through the cutting rotating shaft, the two ends of axle produce shaft current, add formed induced voltages such as each winding and distributed capacitance, bad to this voltage as if not insulated or insulating, will there be bigger shaft current to produce, this will constitute injury to motor, reduce efficiency of motor and life-span greatly.
At present, motor make manufacturer for anti-generation of planting shaft current here so that damage motor, the method for employing is the interior spheroid surface engagement place at bearing pedestal, is stained with the polytetrafluoroethylene film of 0.3-0.6 millimeters thick, prevents the generation of shaft current.The shortcoming that sticking film exists is: 1) because the large and middle size motor rotor is heavier, the sphere of bearing shell is aligning voluntarily often, and film extrusion or wearing and tearing are destroyed.2) after bearing sphere and the thin film planar bonding, fold can appear, and rough, influence sphere bearing shell aligning voluntarily, also influence motor bearing and normally move, produce heating and oscillation phenomenon.3) the sphere bearing shell is in the maintenance installation process, and film is bonded on the sphere of bearing shell and is damaged.4) when shaft voltage and bearing bush temperature are elevated to certain value, minor insulation intensity decreases or breakdown.
Summary of the invention
At the shortcoming of prior art, the utility model provide a kind of break through existing Filming Technology pollution-free, mechanical performance is excellent, the motor regulating center bearing base of good insulation preformance, the coating that operation is simple.
The utility model adopts following technical scheme to realize:
The motor regulating center bearing base of coating is characterized in that: be sprayed with the coating that prevents that shaft current from producing at motor regulating center bearing base inner surface.
Compared with prior art the utility model has the advantages that: broken through existing mucous membrane technology, use spraying coating process to be sprayed with the generation that coating can effectively prevent shaft current, simple for process, coating layer thickness homogeneous and controllable, coating and matrix adhesive force are by force, the mechanical performance of coating, insulation property be all good, need not lubriation material, wear-resistant, noise is little, pollution-free.
Description of drawings
Fig. 1 is a motor regulating center bearing base and the schematic diagram that cooperates of axle.
1-bearing pedestal 2-coating 3-axle
Embodiment
Embodiment:
See Fig. 1, the motor regulating center bearing base of coating is sprayed with the coating 2 that prevents that shaft current from producing at motor regulating center bearing base 1 inner surface.
The motor regulating center bearing base inner surface spraying coating process, this technology comprises the steps:
1) bearing pedestal Internal Spherical Surface surface preparation; Before the flame-spraying, its Internal Spherical Surface surface adopts the method for sandblast, phosphatization, pickling to carry out scrubbing, rust cleaning, flash removed processing;
2) bearing pedestal preheating; Be preheating to positive and negative 20～50 ℃ temperature of coating material fusing point;
3) spraying parameter: when sprayed on material was the nylon 1010 powder, granularity was 0.07～0.18 granularity/mm; 150～220 ℃ of workpiece preheat temperatures; Oxygen pressure is 0.2MPa; Acetylene pressure is 0.1MPa; Protective gas pressure is 0.3～0.4 MPa; Spray distance is 100～150mm; Powder sending quantity is 4.5～5.5kg/h;
4) processing of spraying back coating; The spraying back is then carried out chilling to coating and is handled if will improve the toughness of coating; If will improve the coating interior state and improve corrosion resistance, then coating is incubated or the slow cooling processing;
5) quality examination of coating;
A) coating surface must not have crackle, coking phenomenon, must not peel off, the bubbling phenomenon;
B) its thickness should be evenly at 0.5～1.0mm; Be used for corrosion resistant coating, minimum insulation values should be greater than 10
4Ω M;
C) when spraying whenever is no more than 0.2mm all over maximum ga(u)ge, and repeatedly evenly spraying back and forth then is till reaching required thickness;
6) cut of coating; Select workhardness to be cutter or the hard alloy cutter YC10 of 40HR.
Employed sprayed on material can be selected nylon, plastics, ceramic powders or other sprayed on material.
Claims (1)
1, the motor regulating center bearing base of coating is characterized in that: be sprayed with the coating that prevents that shaft current from producing at motor regulating center bearing base inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091846 CN2932811Y (en) | 2006-07-03 | 2006-07-03 | Motor self-aligning bearing seat with coatings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091846 CN2932811Y (en) | 2006-07-03 | 2006-07-03 | Motor self-aligning bearing seat with coatings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2932811Y true CN2932811Y (en) | 2007-08-08 |
Family
ID=38349301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620091846 Expired - Fee Related CN2932811Y (en) | 2006-07-03 | 2006-07-03 | Motor self-aligning bearing seat with coatings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2932811Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010102526A1 (en) * | 2009-03-12 | 2010-09-16 | 中山大洋电机制造有限公司 | Motor end cover structure |
-
2006
- 2006-07-03 CN CN 200620091846 patent/CN2932811Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010102526A1 (en) * | 2009-03-12 | 2010-09-16 | 中山大洋电机制造有限公司 | Motor end cover structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070808 Termination date: 20100703 |