CN104638815A - End cover of variable-frequency high-speed motor - Google Patents
End cover of variable-frequency high-speed motor Download PDFInfo
- Publication number
- CN104638815A CN104638815A CN201410793488.8A CN201410793488A CN104638815A CN 104638815 A CN104638815 A CN 104638815A CN 201410793488 A CN201410793488 A CN 201410793488A CN 104638815 A CN104638815 A CN 104638815A
- Authority
- CN
- China
- Prior art keywords
- end cover
- end cap
- speed motor
- frequency high
- variable
- 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
- 238000000034 method Methods 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 10
- 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 6
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000002889 sympathetic effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000013585 weight reducing agent 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
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses an end cover of a variable-frequency high-speed motor and relates to the field of motors. A groove A (2) is formed in the outer end face of an end cover body (1) while a groove B (3) is formed in the inner end face of the end cover body (1), reinforcing arc-shaped ribs (4) are arranged between a bearing seat and an end cover plate on the inner end face of the end cover body (1) and extend to the position of the larger outer circumference of the end cover plate, and three to four detachable technological screw holes (6) are uniformly distributed in the positions at an equal distance from the circle centers of mounting holes (5) of the end cover body (1). The end cover of the variable-frequency high-speed motor has the advantages that the end cover is simple in structure and convenient to detach, sympathetic vibration and weight of the end cover are reduced effectively and the like.
Description
Technical field
Patent of the present invention relates to machine field, especially the end cap of variable frequency high-speed motor.
Background technology
Existing variable frequency high-speed motor because of rotating speed too high, the vibration values of its motor is all greatly confidential than common variable-frequency electric, in order to reduce the vibration of variable frequency high-speed motor, generally all can emphatically end casing and bearing pedestal be thickeied when designing, add the amount of deflection that high-speed electric expreess locomotive needs to consider rotor, take the bearing pedestal of front and rear cover to extend in motor winding, the length of support of bearings at both ends is shortened, the vibration brought during to reduce variable-frequency motor high-speed cruising as far as possible.Therefore, the design defect of existing electric motor end cap have following some:
A. existing variable frequency high-speed motor end cap thickeies bearing chamber and end casing thickness emphatically, not only wastes material, the vibration brought when can't effectively reduce variable-frequency motor high-speed cruising.
B. in order to shorten the length of support of front and back bearings, the bearing chamber of front and rear cover all can extend as far as possible in motor winding, to shorten the length of support of front and back bearings, its reinforcement is than slowspeed machine many 4-10 root (for 7-13 root), but enough pull out electrical distance to ensure that reinforcement and electric motor winding end internal diameter leave, reinforcement angle cannot increase, and reinforcement can not be extended to end casing larger cylindrical place (see figure 1), effectively can not reduce the radial vibration of end cap.
C. front and rear cover all embeds support and adopts seam location, bolted, but without dismounting technique screw, when needs dismounting end cap, after first the oil cap bolt of front end housing can only being unscrewed, motor-shaft extending end face is knocked with strength with aluminium hammer, until rear end cap seam departs from support seam, rotor and rear end cap can be taken out simultaneously.Take off front and rear cover respectively again, such method for dismounting, not only easily cause rotating shaft to be out of shape, more outstanding, the high-speed precision bearing of more than 70% all can because knocking time impulsive force and damage, bring serious economic loss to enterprise.
Summary of the invention
For above-mentioned existing problems, propose a kind of weight reduction, reduce resonance, strengthen the variable frequency high-speed motor end cap of rigidity.
Employing technical scheme of the present invention, the circumferential edge comprising end cap has installing hole, the fluted A in outer face of its above-mentioned end cap, the fluted B of inner face; Between end cap inner face end casing and bearing pedestal, have reinforcement arched ribs, described reinforcement arched ribs extends to the larger cylindrical place of end casing, is evenly distributed with 3-4 dismounting technique screw at end cap installing hole distance of center circle from equal place.
It is simple that the present invention has structure, effectively reduces end cap resonance and weight, the features such as convenient disassembly.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left sectional structure schematic diagram of Fig. 1.
In figure: 1-end cap 2-groove A 3-groove B 4-strengthens arched ribs 5-installing hole 6-and dismantles technique screw.
Embodiment
See Fig. 1, Fig. 2, end cap 1 circumferential edge has installing hole 5, the fluted A2 in outer face of its above-mentioned end cap 1, the fluted B3 of inner face; Have between end cap 1 inner face end casing and bearing pedestal and strengthen arched ribs 4, described reinforcement arched ribs 4 extends to the larger cylindrical place of end casing, is evenly distributed with 3-4 dismounting technique screw 6 at end cap 1 installing hole 5 distance of center circle from equal place.
While effectively reducing end cap 1 resonance, also can alleviate end cap weight, save material, groove A and groove B has 7-9.
Also have, there is 7-13 root to strengthen arched ribs 4, extend to the larger cylindrical place of end casing, effectively reduce end cap resonance, and make bearing pedestal success extend in motor winding, shorten front and back bearings length of support, stop between reinforcement and motor winding without the defect of pulling out electrical distance.
End cap drilled 4 dismounting technique screws (with installing hole 5 distance of center circle from), be convenient to the dismounting of end cap, ensure that end cap dismounting rear bearing quality is unaffected.Its method for dismounting is: first taken off by oil cap bolt in front end, then taken off by front end housing construction bolt, and will wherein be screwed into until prop up support from dismounting technique screw respectively by 4 construction bolts, then continues to be screwed into respectively bolt, and namely detachably (support) goes out front end housing.Adopt that same method is removable draws off rear end cap, this method for dismounting ensures that end cap dismounting rear bearing quality is not affected.
Claims (3)
1. variable frequency high-speed motor end cap (1) circumferential edge has installing hole (5), it is characterized in that the fluted A in the outer face (2) of above-mentioned end cap (1), the fluted B3 of inner face; Reinforcement arched ribs (4) is had between end cap (1) inner face end casing and bearing pedestal, described reinforcement arched ribs (4) extends to the larger cylindrical place of end casing, is evenly distributed with 3-4 dismounting technique screw (6) at end cap (1) installing hole 5 distance of center circle from equal place.
2. a kind of variable frequency high-speed motor end cap (1) according to claim 1, is characterized in that groove A (2) and groove B (3) has 7-9.
3. a kind of variable frequency high-speed motor end cap (1) according to claim 1, is characterized in that having 7-13 root to strengthen arched ribs (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410793488.8A CN104638815A (en) | 2014-12-20 | 2014-12-20 | End cover of variable-frequency high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410793488.8A CN104638815A (en) | 2014-12-20 | 2014-12-20 | End cover of variable-frequency high-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104638815A true CN104638815A (en) | 2015-05-20 |
Family
ID=53217251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410793488.8A Pending CN104638815A (en) | 2014-12-20 | 2014-12-20 | End cover of variable-frequency high-speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104638815A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007082371A (en) * | 2005-09-16 | 2007-03-29 | Mitsuba Corp | Brushless motor |
| CN202602437U (en) * | 2012-06-14 | 2012-12-12 | 国电联合动力技术(连云港)有限公司 | Assembling base of direct-driven wind power generator |
| CN103354399A (en) * | 2013-06-17 | 2013-10-16 | 苏州汇川技术有限公司 | Motor end cap and processing technology thereof |
| CN203607979U (en) * | 2013-11-30 | 2014-05-21 | 中山大洋电机制造有限公司 | Motor end cover and motor having the same |
| CN203707930U (en) * | 2013-12-24 | 2014-07-09 | 刘媛媛 | Front end cover for motor |
| CN203911703U (en) * | 2014-06-10 | 2014-10-29 | 天津市永恒电机厂 | Sealing-improved material-saving light rear end cap of electromagnetic-braking three-phase asynchronous motor |
| CN203911627U (en) * | 2014-06-10 | 2014-10-29 | 天津市永恒电机厂 | Material-saving light front end cap of electromagnetic-braking three-phase asynchronous motor |
| CN204334201U (en) * | 2014-12-20 | 2015-05-13 | 重庆德马高速设备研究所 | Variable frequency high-speed motor end cap |
-
2014
- 2014-12-20 CN CN201410793488.8A patent/CN104638815A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007082371A (en) * | 2005-09-16 | 2007-03-29 | Mitsuba Corp | Brushless motor |
| CN202602437U (en) * | 2012-06-14 | 2012-12-12 | 国电联合动力技术(连云港)有限公司 | Assembling base of direct-driven wind power generator |
| CN103354399A (en) * | 2013-06-17 | 2013-10-16 | 苏州汇川技术有限公司 | Motor end cap and processing technology thereof |
| CN203607979U (en) * | 2013-11-30 | 2014-05-21 | 中山大洋电机制造有限公司 | Motor end cover and motor having the same |
| CN203707930U (en) * | 2013-12-24 | 2014-07-09 | 刘媛媛 | Front end cover for motor |
| CN203911703U (en) * | 2014-06-10 | 2014-10-29 | 天津市永恒电机厂 | Sealing-improved material-saving light rear end cap of electromagnetic-braking three-phase asynchronous motor |
| CN203911627U (en) * | 2014-06-10 | 2014-10-29 | 天津市永恒电机厂 | Material-saving light front end cap of electromagnetic-braking three-phase asynchronous motor |
| CN204334201U (en) * | 2014-12-20 | 2015-05-13 | 重庆德马高速设备研究所 | Variable frequency high-speed motor end cap |
Non-Patent Citations (1)
| Title |
|---|
| 肖开梓: "《炼厂机器安装修理》", 30 September 1981, 石油工业出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |