CN110233534A - A kind of low abrasion electric motor end cap - Google Patents
A kind of low abrasion electric motor end cap Download PDFInfo
- Publication number
- CN110233534A CN110233534A CN201910463057.8A CN201910463057A CN110233534A CN 110233534 A CN110233534 A CN 110233534A CN 201910463057 A CN201910463057 A CN 201910463057A CN 110233534 A CN110233534 A CN 110233534A
- Authority
- CN
- China
- Prior art keywords
- end cap
- electric motor
- motor end
- circular arc
- mounting surface
- 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
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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
-
- 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
- H02K5/06—Cast metal casings
-
- 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
-
- 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
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- 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 discloses a kind of low abrasion electric motor end caps, including end cap ontology, it at least include end face, mounting surface, bearing chamber, bearing chamber chamber body and axis hole on end cap ontology, end face, bearing chamber and mounting surface are sequentially connected, dashpot is provided on mounting surface, it is provided with cushion in dashpot, bearing holder (housing, cover) is provided in bearing chamber, chamber body and the equal apex angle in end face and mounting surface junction are disposed as circular arc chamfering structure；Low abrasion electric motor end cap of the invention, it is designed by special structure, improve electric motor end cap performance, reduce motor oscillating amplitude, electric motor end cap is avoided to resonate, it avoids electric motor end cap surface from stress concentration occur, avoids the defects of easily cracked on electric motor end cap, improve electric motor end cap performance and prolong its service life.
Description
Technical field
The present invention relates to electric motor end cap field, more specifically to a kind of low abrasion electric motor end cap.
Background technique
Electric motor end cap generally refers to the lid that axial dimension is greater than radial dimension of motor both ends, and main function is to determine to turn
The spatial position of sub- axis, while needs and various forms of bearing fits, the shell of fixed motor stator is connected to by end cap
On, guarantee the gap of rotor and stator, micro-machine end cap generally uses metal plate drawing and forming, and large-size machine, especially one
The upper practical motor such as a little crane, draggers, electric motor end cap are low-alloy cast steel parts, which will bear motor drive load
Lotus, while the stress of fuselage strenuous vibration generation is still suffered from, since running environment is severe, accessory present position is crucial, therefore
Do not allow cracked, the defects of being mingled with, influences motor service life and working performance.
Summary of the invention
The purpose of the present invention is to provide a kind of low abrasion electric motor end caps, are designed by special structure, improve motor side
Lid performance reduces motor oscillating amplitude, avoids electric motor end cap from resonating, avoid electric motor end cap surface from stress concentration occur, keep away
Exempt from the defects of easily cracked on electric motor end cap, improve electric motor end cap performance and prolongs its service life.
A kind of low abrasion electric motor end cap of technical solution of the present invention, including end cap ontology at least include end on end cap ontology
Face, mounting surface, bearing chamber, bearing chamber chamber body and axis hole, the end face, bearing chamber and mounting surface are sequentially connected, the mounting surface
On be provided with dashpot, cushion is provided in the dashpot, is provided with bearing holder (housing, cover) in the bearing chamber, the chamber body and end
The equal apex angle in face and mounting surface junction is disposed as circular arc chamfering structure.
Preferably, heat release hole is provided on the end face, heat release hole both ends orifice part is set as circular arc chamfering structure.
Preferably, the heat release hole is uniformly arranged, and radiating is circular hole or slotted hole.
Preferably, flange head is connected on the mounting surface, is provided with mounting hole on the flange head, the flange head with
Mounting surface junction is connected using circular arc tangential line transition, and the orifice part at mounting hole both ends is set as circular arc chamfering structure.
Preferably, the notch of the dashpot is set as circular arc chamfering structure, and the slot bottom and mounting surface of dashpot pass through circle
The connection of arc tangent-line transition.
Preferably, it is uniformly coaxially arranged with limiting slot in the bearing chamber interior walls, is evenly distributed on the bearing holder (housing, cover) outer wall coaxial
It is stupefied to be provided with convex, the convex is stupefied to be placed in limiting slot, and the limiting slot notch is set as circular arc chamfering structure, fixed
Position is convex stupefied to use circular arc tangential line transition to connect with bearing chamber outer wall junction.
Preferably, the end cap ontology uses casting and forming, when molding to bearing chamber and end face and mounting surface junction into
The processing of row Quench after end cap sheet is body formed, is handled impewdance matching is all made of at all circular arc chamfering structures.
The beneficial effect of technical solution of the present invention is:
A kind of low abrasion electric motor end cap of technical solution of the present invention increases cushion on electric motor end cap, reduces motor side
Lid resonance；Bearing holder (housing, cover) is set, electric motor end cap upper bearing (metal) indoor profile is avoided to wear, after the abrasion of meat bearing holder (housing, cover) inner sidewall
It directly replaces, does not need replacement electric motor end cap, reduce maintenance cost；Circular arc chamfering structure and circular arc tangential line transition connecting structure
Design, avoids right angle joint or right angle from stress concentration phenomenon occur, avoids these positions on electric motor end cap cracked scarce
It falls into.
Detailed description of the invention
Fig. 1 is a kind of low abrasion motor end cap structure schematic diagram of technical solution of the present invention,
Fig. 2 is a kind of low abrasion electric motor end cap cross-sectional view of technical solution of the present invention,
Fig. 3 is a kind of another example structure schematic diagram of low abrasion electric motor end cap of technical solution of the present invention.
Specific embodiment
For convenient for those skilled in the art understand that technical solution of the present invention, now in conjunction with Figure of description to the technology of the present invention side
Case is described further.
As depicted in figs. 1 and 2, a kind of low abrasion electric motor end cap, including end cap ontology at least include end on end cap ontology
Face 11, mounting surface 1, bearing chamber 5, bearing chamber chamber body 10 and axis hole 9, the end face 11, bearing chamber 5 and mounting surface 1 are sequentially connected,
It is provided with dashpot 2 on the mounting surface 1, cushion 12 is provided in the dashpot 2, is provided with axis in the bearing chamber 5
Bearing sleeve 6, the chamber body 10 are disposed as circular arc chamfering structure with the equal apex angle in end face 11 and 1 junction of mounting surface；Dashpot 2 is realized
Fixation to cushion 12, cushion 12 realize the isolation between electric motor end cap and motor body shell, reduce electric motor end cap with
Vibration between body shell avoids generating resonance between electric motor end cap and motor body；The design of 5 internal bearing sleeve 6 of bearing chamber,
Electric motor end cap problem is replaced after avoiding 5 inner wall abrasion of bearing chamber, reduces electric motor end cap maintenance cost；Circular arc chamfering structure structure
Design avoids stress concentration, effectively avoids motor at work, occurs stress on electric motor end cap and concentrates and lead to part
Crackle occurs.
Such as Fig. 1, it is provided with heat release hole 8 on the end face 11, the 8 both ends orifice part of heat release hole is set as circular arc chamfering knot
Structure；Heat release hole 8 realizes that the circular arc chamfering structure of 8 both ends orifice part of heat release hole has avoided 8 liang of heat release hole to the heat dissipation inside motor
Stomidium oral area stress is concentrated, and it is cracked as motor works to avoid 8 both ends orifice part of heat release hole.
Such as Fig. 1 and Fig. 3, the heat release hole 8 is uniformly arranged, and radiating is circular hole or slotted hole；Circular hole or slotted hole are set
Meter, effectively avoids cracked on the inner wall of hole.
Such as Fig. 1, it is connected with flange head 3 on the mounting surface 1, mounting hole 4, the flange are provided on the flange head 3
First 3 are connect with 1 junction of mounting surface using circular arc tangential line transition, and the orifice part at mounting hole both ends is set as circular arc chamfering structure；
Circular arc tangential line transition connection and the design of circular arc chamfering structure are that of avoiding stress concentration, effectively avoid motor and are working
When, occur stress on electric motor end cap and concentrates and localized cracks is caused to occur.
Such as Fig. 1, the notch of the dashpot is set as circular arc chamfering structure, and the slot bottom and mounting surface of dashpot pass through circular arc
Tangent-line transition connection, avoid stress concentration, effectively avoid motor at work, occur on electric motor end cap stress concentrate and
Localized cracks are caused to occur.
Such as Fig. 1 and Fig. 2, it is uniformly coaxially arranged with limiting slot 7 on 5 inner wall of bearing chamber, on 6 outer wall of bearing holder (housing, cover)
Cloth is coaxially arranged with convex stupefied 13, and the convex stupefied 13 is placed in limiting slot 7, and 7 notch of limiting slot is set as round
Arc chamfering structure, convex stupefied 13 are connect with 5 outer wall junction of bearing chamber using circular arc tangential line transition；Stress concentration is avoided,
It effectively avoids motor at work, occurs stress on electric motor end cap and concentrate and localized cracks is caused to occur.
Such as Fig. 1 and Fig. 2, the end cap ontology uses casting and forming, and when molding connect bearing chamber with end face and mounting surface
Place carries out Quench processing, after end cap sheet is body formed, handles impewdance matching is all made of at all circular arc chamfering structures；At Quench
Reason and impewdance matching processing are for eliminating the stress in the electric motor end cap of casting and forming, increase the machinery on electric motor end cap surface
Intensity avoids the generation of crackle on electric motor end cap to electric motor end cap especially to the Surface hardened layer at circular arc chamfering structure.
In the present invention, Quench processing refers in the sand mould that liquid cast iron injects metal mold or special designing, casting table
Face is cooled down faster.By the casting that Quench is handled, white iron is formd in the certain depth of cast(ing) surface, there is pole
High hardness (up to HB450~500) and fabulous wearability, this method are mostly used to manufacture and require especially wear-resisting casting, such as
Roll, train wheel of rolling mill etc. are used to handle the electric motor end cap casting of large-size machine, the casting that this method obtains here
Referred to as chilled iron part, also referred to as chill cast share ironware.
The tissue of chilled iron part generally can be divided into three regions:
A, surface layer: pearlite and cementite are white iron；
B, excessive layer: pearlite and cementite and graphite are mottled iron；
C, center: pearlite, graphite or pearlite, ferrite and graphite are grey cast-iron.
It so a variety of different tissues can be obtained, was crystallized due to being respectively on casting section in same casting
Caused by cooling velocity obtained in journey is different.
Electric motor end cap casting obtained by the above method is heat-treated:
Generally to the heat treatment of chilled iron part, only with low-temperature annealing, the low-temperature annealing of chilled iron part is by casting
500~550 DEG C are heated to the speed of 20~30 DEG C/h, and keeps the temperature 2~3h, is then down to 300 DEG C or so with 30 DEG C/h speed
It comes out of the stove.
Be using above-mentioned heat treatment method because chilled iron is when its solidification, due to the difference of cooling velocity in casting,
In addition the tissue formed in each layer is different, so casting has very big internal stress, just can eliminate part by above-mentioned heat treatment
Internal stress.But to thoroughly eliminate the internal stress of chilled iron, it is difficult to accomplish.Because to thoroughly eliminate internal stress,
Only be heated to higher temperature or heat preservation longer time, and high annealing as a result, cementite in pearlite certainly will be caused
Aggregation and decomposition so that reduce cast(ing) surface hardness, so being unsuitable.So needing to design buffering in the present invention
Pad, circular arc tangential line transition connection and circular arc chamfering structure eliminate the stress and problem of stress concentration of electric motor end cap cast(ing) surface.
In the present invention, impewdance matching, i.e. induction heating are exactly that vortex is generated in electric motor end cap casting using electromagnetic induction
And electric motor end cap casting is heated.
At work because of electric motor end cap, need to bear the stress alternations effect such as torsion, bending, it is desirable that superficial layer is born in ratio
The higher stress of center portion or wearability need to propose higher reinforcing requirement, so to electric motor end cap surface to electric motor end cap surface
Impewdance matching is used especially at circular arc tangential line transition connection and circular arc chamfering structure.
Impewdance matching working principle: electric motor end cap is put into inductor, and inductor is usually to input intermediate frequency or high frequency friendship
The hollow copper tubing of galvanic electricity (300-300000Hz or higher) generates the sense that alternating magnetic field produces same frequency in electric motor end cap
Answer electric current, this induced current is unevenly distributed electric motor end cap, strong on surface, and internal very weak, it is connect to center portion
It is bordering on 0, using this kelvin effect, electric motor end cap surface can be made to heat rapidly, surface temperature rises to 800-in seconds
1000 DEG C, and center portion temperature increases very little, improves electric motor end cap cast(ing) surface hardness.So that electric motor end cap surface hardness is high, lack
Mouth sensibility is small, and impact flexibility, fatigue strength and wearability etc. improve a lot, and is conducive to playing material potentiality, section
About material consumption improves part service life.
Technical solution of the present invention is exemplarily described invention above in conjunction with attached drawing, it is clear that present invention specific implementation
It is not subject to the restrictions described above, changes as long as using the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out
Into, or it is not improved the conception and technical scheme of invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (7)
1. a kind of low abrasion electric motor end cap, including end cap ontology, at least include on end cap ontology end face, mounting surface, bearing chamber,
Bearing chamber chamber body and axis hole, the end face, bearing chamber and mounting surface are sequentially connected, which is characterized in that are arranged on the mounting surface
There is dashpot, cushion is provided in the dashpot, bearing holder (housing, cover), the chamber body and end face and peace are provided in the bearing chamber
The equal apex angle in dress face junction is disposed as circular arc chamfering structure.
2. a kind of low abrasion electric motor end cap according to claim 1, which is characterized in that be provided with heat dissipation on the end face
Hole, heat release hole both ends orifice part are set as circular arc chamfering structure.
3. a kind of low abrasion electric motor end cap according to claim 2, which is characterized in that the heat release hole is uniformly arranged, and
Heat dissipation is circular hole or slotted hole.
4. a kind of low abrasion electric motor end cap according to claim 1, which is characterized in that be connected with flange on the mounting surface
Head is provided with mounting hole on the flange head, and the flange head connect with mounting surface junction using circular arc tangential line transition, installation
The orifice part at hole both ends is set as circular arc chamfering structure.
5. a kind of low abrasion electric motor end cap according to claim 1, which is characterized in that the notch of the dashpot is set as
The slot bottom of circular arc chamfering structure, dashpot is connect with mounting surface by circular arc tangential line transition.
6. a kind of low abrasion electric motor end cap according to claim 1, which is characterized in that uniformly distributed same in the bearing chamber interior walls
Axis is provided with limiting slot, is uniformly coaxially arranged with that convex is stupefied, and the convex is stupefied is placed in limiting slot on the bearing holder (housing, cover) outer wall
Interior, the limiting slot notch is set as circular arc chamfering structure, and convex is stupefied to use circular arc tangential line with bearing chamber outer wall junction
Transition connection.
7. a kind of low abrasion electric motor end cap described according to claim 1 or 2 or 3 or 5 or 6, which is characterized in that the end cap sheet
Body uses casting and forming, carries out Quench processing to bearing chamber and end face and mounting surface junction when molding, after end cap sheet is body formed,
It handles impewdance matching is all made of at all circular arc chamfering structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910463057.8A CN110233534A (en) | 2019-05-30 | 2019-05-30 | A kind of low abrasion electric motor end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910463057.8A CN110233534A (en) | 2019-05-30 | 2019-05-30 | A kind of low abrasion electric motor end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110233534A true CN110233534A (en) | 2019-09-13 |
Family
ID=67858211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910463057.8A Pending CN110233534A (en) | 2019-05-30 | 2019-05-30 | A kind of low abrasion electric motor end cap |
Country Status (1)
| Country | Link |
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| CN (1) | CN110233534A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112291975A (en) * | 2020-11-11 | 2021-01-29 | 合肥圣达电子科技实业有限公司 | Flange structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075755Y (en) * | 2007-08-31 | 2008-06-18 | 上海日用-友捷汽车电气有限公司 | Ultra-thin type electrical machine back-end cover |
| CN203368202U (en) * | 2013-06-17 | 2013-12-25 | 常州富邦电气有限公司 | End cap device for output shaft end of large motor |
| CN203456969U (en) * | 2013-08-27 | 2014-02-26 | 广东威灵电机制造有限公司 | External rotor motor |
| CN104467275A (en) * | 2014-12-17 | 2015-03-25 | 江麓机电集团有限公司 | Multifunctional integrated electric driver |
| CN205544665U (en) * | 2016-01-19 | 2016-08-31 | 浙江金龙电机股份有限公司 | Rotor sheet |
| TW201820750A (en) * | 2016-11-22 | 2018-06-01 | 合利美股份有限公司 | Motor module to reduce the volume and assemble conveniently |
| CN207655855U (en) * | 2017-12-21 | 2018-07-27 | 保定茶山五岳铸造有限公司 | A kind of integrated cast structure of thrust wheel end cover |
-
2019
- 2019-05-30 CN CN201910463057.8A patent/CN110233534A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075755Y (en) * | 2007-08-31 | 2008-06-18 | 上海日用-友捷汽车电气有限公司 | Ultra-thin type electrical machine back-end cover |
| CN203368202U (en) * | 2013-06-17 | 2013-12-25 | 常州富邦电气有限公司 | End cap device for output shaft end of large motor |
| CN203456969U (en) * | 2013-08-27 | 2014-02-26 | 广东威灵电机制造有限公司 | External rotor motor |
| CN104467275A (en) * | 2014-12-17 | 2015-03-25 | 江麓机电集团有限公司 | Multifunctional integrated electric driver |
| CN205544665U (en) * | 2016-01-19 | 2016-08-31 | 浙江金龙电机股份有限公司 | Rotor sheet |
| TW201820750A (en) * | 2016-11-22 | 2018-06-01 | 合利美股份有限公司 | Motor module to reduce the volume and assemble conveniently |
| CN207655855U (en) * | 2017-12-21 | 2018-07-27 | 保定茶山五岳铸造有限公司 | A kind of integrated cast structure of thrust wheel end cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112291975A (en) * | 2020-11-11 | 2021-01-29 | 合肥圣达电子科技实业有限公司 | Flange structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190913 |
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| RJ01 | Rejection of invention patent application after publication |