CN103475143A - Motor end cover - Google Patents
Motor end cover Download PDFInfo
- Publication number
- CN103475143A CN103475143A CN2013104626861A CN201310462686A CN103475143A CN 103475143 A CN103475143 A CN 103475143A CN 2013104626861 A CN2013104626861 A CN 2013104626861A CN 201310462686 A CN201310462686 A CN 201310462686A CN 103475143 A CN103475143 A CN 103475143A
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- Prior art keywords
- bearing
- annular
- end cap
- end cover
- motor end
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Abstract
The invention discloses a motor end cover and relates to the field of permanent magnet direct current micromotors. The motor end cover comprises an end cover body and a ball bearing. An annular bearing installation chamber is arranged in the center of the end cover body. The annular inner wall of the bearing installation chamber is provided with a plurality of locating convex strips. The motor end cover further comprises a bearing box which is made of soft materials. A bearing box body is annular, an inner cavity is formed, and a plurality of locating grooves are formed in the annular outer wall and are matched with the locating convex strips. According to the motor end cover, the axial clearance between the bearing and the end cover body can be adjusted effectively, the ball bearing and the bearing chamber of the end cover no longer make hard contact, and the bearing box can be installed easily and conveniently and enables the bearing to keep good coaxiality and perpendicularity in the operation process.
Description
Technical field
The present invention relates to the permanent magnetism dc micro-motor field, relate in particular to a kind of electric motor end cap.
Background technology
Blower fan is the mechanical energy that relies on input, improves supply gas the side by side machinery of body of gas pressure, and it is a kind of driven fluid machinery, and it is mainly by the driven by motor vane rotary, produces gas flow to reach application target.When electric machine rotation, bearing is the rotation of bolster and rotor assembly both, reduce again the friction and wear between rotor and stator supporting member, therefore bearing plays very important effect, yet what in existing electric machine structure design, adopt is that two ball bearing combinations are installed, bearing will guarantee the axiality with bearing chamber after installation, guarantees the center line of axle and the perpendicularity of bearing chamber end face.This kind of installation method not only need to be by frock, and can not adjust the end play between bearing and end cap after installation, just easily causes the bearing seizure phenomenon, affects the life-span of blower fan.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is, a kind of electric motor end cap is provided, and is convenient to the axially control in gap in anabolic process is installed of two ball bearings.
(2) technical scheme
In order to address the above problem, the invention provides a kind of electric motor end cap, it is characterized in that, described electric motor end cap comprises: the end cap body, ball bearing, described end cap body center is provided with the annular bearing installation room, the annular inner wall of described bearing installation room is provided with some positioning convex strips, described electric motor end cap also comprises bearing box, described bearing box is made by flexible material, and described bearing box main body is annular, is formed with inner chamber, its annular outer wall is provided with some location notchs, and described location notch and described positioning convex strip are complementary.
Wherein, the annular inner wall positioning convex strip of described bearing installation room is 4, and the location notch of described bearing box annular outer wall is 4.
Wherein, the annular wall of described bearing box is preset thickness D.
Wherein, described bearing box is made by silicon rubber.
Wherein, the inwall of the outer wall of described bearing box and described bearing installation room leans, and the outer wall of described ball bearing and the inwall of described bearing box lean.
(3) beneficial effect
Electric motor end cap of the present invention can effectively be regulated the end play of bearing and end cap, making contacting of ball bearing and bearing with end cover chamber is no longer hard contact, bearing box is installed simple and convenient and is made bearing keep axiality, perpendicularity preferably in the process of running, has effectively ensured stability and the reliability of motor.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of Fig. 1 middle (center) bearing box.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for the present invention is described, but are not used for limiting the scope of the invention.
Shown in Fig. 1～2, described electric motor end cap comprises: end cap body 1, ball bearing 5, described end cap body 1 center is provided with annular bearing installation room 2, and the annular inner wall of described bearing installation room 2 is provided with some positioning convex strips 20, described electric motor end cap also comprises bearing box 3, described bearing box 3 is made by flexible material, and described bearing box main body is annular, is formed with inner chamber, its annular outer wall is provided with some location notchs 30, and described location notch 30 is complementary with described positioning convex strip 20.Add in the bearing chamber 2 of electric motor end cap that flexible material makes bearing box 3 end play of well having regulated motor, guarantee that ball bearing is not hard contact with contacting of bearing with end cover chamber 3.Two ball bearings keep axiality, perpendicularity preferably in the process of running, not there will be bearing to suppress dead phenomenon.
Preferably, the annular inner wall positioning convex strip 20 of described bearing installation room 2 is 4, and the location notch 30 of described bearing box annular outer wall is 4.
Preferably, the annular wall of described bearing box is preset thickness D.Two ball bearings keep axiality, perpendicularity preferably in the process of running, not there will be bearing to suppress dead phenomenon.
Preferably, described bearing box 3 is made by silicon rubber, the inwall of the outer wall of described bearing box 3 and described bearing installation room 2 leans, the inwall of the outer wall of described ball bearing 5 and described bearing box 3 leans, the positive role that played for motor stabilizing, operation reliably, add the effect that the silicon rubber bearing box has also played good vibration damping and reduced fan noise in bearing chamber.
Above execution mode is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (5)
1. an electric motor end cap, it is characterized in that, described electric motor end cap comprises: end cap body, ball bearing, described end cap body center is provided with the annular bearing installation room, the annular inner wall of described bearing installation room is provided with some positioning convex strips, and described electric motor end cap also comprises bearing box, and described bearing box is made by flexible material, described bearing box main body is annular, be formed with inner chamber, its annular outer wall is provided with some location notchs, and described location notch and described positioning convex strip are complementary.
2. electric motor end cap as claimed in claim 1, is characterized in that, the annular inner wall positioning convex strip of described bearing installation room is 4, and the location notch of described bearing box annular outer wall is 4.
3. electric motor end cap as claimed in claim 1, is characterized in that, the annular wall of described bearing box is preset thickness D.
4. electric motor end cap as claimed in claim 1, is characterized in that, described bearing box is made by silicon rubber.
5. electric motor end cap as claimed in claim 1, is characterized in that, the inwall of the outer wall of described bearing box and described bearing installation room leans, and the outer wall of described ball bearing and the inwall of described bearing box lean.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104626861A CN103475143A (en) | 2013-09-30 | 2013-09-30 | Motor end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104626861A CN103475143A (en) | 2013-09-30 | 2013-09-30 | Motor end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103475143A true CN103475143A (en) | 2013-12-25 |
Family
ID=49799881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104626861A Pending CN103475143A (en) | 2013-09-30 | 2013-09-30 | Motor end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103475143A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200950A (en) * | 1993-01-08 | 1994-07-19 | Fuji Electric Co Ltd | Bearing device of rotating machine |
| CN1139738A (en) * | 1995-06-30 | 1997-01-08 | 谢新茂 | DC brush free fan |
| CN1327292A (en) * | 2001-04-12 | 2001-12-19 | 金马达制造厂有限公司 | Shock reducing method for small motor and bearing shock reducing ring thereof |
| CN203537134U (en) * | 2013-09-30 | 2014-04-09 | 苏州双航机电有限公司 | Motor end cover |
-
2013
- 2013-09-30 CN CN2013104626861A patent/CN103475143A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200950A (en) * | 1993-01-08 | 1994-07-19 | Fuji Electric Co Ltd | Bearing device of rotating machine |
| CN1139738A (en) * | 1995-06-30 | 1997-01-08 | 谢新茂 | DC brush free fan |
| CN1327292A (en) * | 2001-04-12 | 2001-12-19 | 金马达制造厂有限公司 | Shock reducing method for small motor and bearing shock reducing ring thereof |
| CN203537134U (en) * | 2013-09-30 | 2014-04-09 | 苏州双航机电有限公司 | 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |