CN201674313U - Pretightening force system on electric motor rotating shaft and electric motor adopting the same - Google Patents
Pretightening force system on electric motor rotating shaft and electric motor adopting the same Download PDFInfo
- Publication number
- CN201674313U CN201674313U CN2009202958715U CN200920295871U CN201674313U CN 201674313 U CN201674313 U CN 201674313U CN 2009202958715 U CN2009202958715 U CN 2009202958715U CN 200920295871 U CN200920295871 U CN 200920295871U CN 201674313 U CN201674313 U CN 201674313U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- ring
- pad
- elastic component
- force system
- 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.)
- Expired - Lifetime
Links
Images
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
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a pretightening force system on an electric motor rotating shaft and an electric motor adopting the same. The pretightening force system comprises a detent ring, a left gasket, an elastic piece and a right gasket, wherein the detent ring is arranged on a rotating shaft and is axially positioned, one side of the detent ring is provided with the left gasket, the elastic piece and the right gasket which are sleeved on the rotating shaft in sequence, the elastic piece is clamped between the left gasket and the right gasket, and deforms through bearing the pressure from external motor components when the motor is installed, and thus the installation gap can be eliminated. By installing the pretightening force system, the installation gap on the electric motor rotating shaft is eliminated, the rotating shaft is effectively prevented from axially moving, the positioning accuracy of a centrifugal switch is ensured, and the start and operation performance of the electric motor is improved.
Description
Technical field:
The utility model relates to the pretightning force system on a kind of machine shaft and the motor of application thereof, and they are widely used in washing machine, the dryer.
Background technology:
At present, in most washing machines, dryer motor inside, the rotating shaft various parts are installed, because all can there be certain dimensional tolerance in these parts self, after having assembled motor front and rear cover and stator, rotor assembly, can produce accumulated error between parts, have bigger assemblage gap, cause machine shaft play vertically, make centrifugal switch location inaccuracy, finally can influence the startup runnability of motor.
Summary of the invention:
The purpose of this utility model provides a kind of simple in structure, and cost is lower, can effectively eliminate the pretightning force system of the assemblage gap that exists on the machine shaft.
The purpose of this utility model is to be achieved by following technical scheme.
Pretightning force system on a kind of machine shaft, comprise back-up ring, left pad, elastic component and right pad, back-up ring is installed in the rotating shaft and is axially located, in back-up ring one side is left pad, elastic component and the right pad that is enclosed within successively in the rotating shaft, elastic component is sandwiched between left pad and the right pad, the pressure that bears from the external motor member when motor is assembled deforms, thereby eliminates assemblage gap.
Above-mentioned described elastic component is a wave washer.
Above-mentioned described external motor member is the bearing chamber end face on bearing or the end cap.
Another purpose of the present utility model provides a kind of compact conformation, can effectively eliminate the motor of the assemblage gap that exists on the machine shaft.
The purpose of this utility model is to be achieved by following technical scheme.
A kind of motor, comprise stator core, coil windings, rotor, rotating shaft, bearing, front end housing and rear end cap, stator core and front end housing and rear end cap connect by locking device, rotor is installed in the rotating shaft, the rotating shaft two supports is preceding, on the bearing of rear end cap, inboard at least one bearing, the pretightning force system is installed in the rotating shaft, this pretightning force system comprises back-up ring, left side pad, elastic component and right pad, back-up ring is installed in the rotating shaft and is axially located, in back-up ring one side is the left pad that is enclosed within successively in the rotating shaft, elastic component and right pad, elastic component is sandwiched between left pad and the right pad, the pressure that bears from the external motor member when motor is assembled deforms, thereby eliminates assemblage gap.
Above-mentioned described elastic component is a wave washer.
Above-mentioned described external motor member is the bearing chamber end face on bearing or the end cap.
Above-mentioned described locking device adopts the screw and nut combined connecting structure.
Above-mentioned described back-up ring is fixed on the annular groove the inside in the rotating shaft, is equiped with centrifugal switch in the inboard of back-up ring, rotating shaft.
Also be provided with nylon washer between above-mentioned described back-up ring and the left pad.
The beneficial effects of the utility model are: 1) by special pretightning force system is set on machine shaft, make accurate positioning between each parts on the machine shaft, that is to say, make the fixed-site of parts such as the rotor that is installed on the machine shaft, centrifugal switch with respect to stator and end cap, eliminated the assemblage gap on the machine shaft, effectively prevent rotating shaft play vertically, guaranteed the centrifugal switch location accurately, improved the startup runnability of motor; 2) adopt the screw and nut combining structure, motor front and rear cover and stator core linked together, under the effect of pretightning force system, effectively compensated the cumulative limit of processing between parts, make easy to assembly fast, simplified assembly technology.
Description of drawings:
Fig. 1 is an electric motor structure stereogram of the present utility model.
Fig. 2 be Fig. 1 partly cut open figure.
Fig. 3 is the front schematic view of Fig. 2.
Fig. 4 is the enlarged drawing of A-A among Fig. 3.
Embodiment:
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
As Fig. 1, Fig. 2, shown in Figure 3, a kind of motor, comprise stator core 1, coil windings 2, rotor 3, rotating shaft 4, bearing 5, front end housing 6 and rear end cap 7, stator core 1 and front end housing 6 and rear end cap 7 connect by locking device, rotor 3 is installed in the rotating shaft 4, rotating shaft 4 two supports are preceding, on the bearing 5 of rear end cap, inboard at least one bearing 5, the pretightning force system is installed in the rotating shaft 4, as shown in Figure 4, this pretightning force system comprises back-up ring 11, left side pad 12, elastic component 13 and right pad 14, back-up ring 11 is installed in the rotating shaft 4 and is axially located, in back-up ring 11 1 sides are the left pads 12 that are enclosed within successively in the rotating shaft 4, elastic component 13 and right pad 14, elastic component 13 is sandwiched between left pad 12 and the right pad 14, and the pressure that bears from the external motor member when motor is assembled deforms, thereby eliminates assemblage gap.
Wherein elastic component 13 is a wave washer; The external motor member is the bearing chamber end face on bearing 5 or the end cap; Locking device adopts screw 8 and nut 9 combined connecting structures; Back-up ring 11 is fixed on annular groove 10 the insides in the rotating shaft 4, installing centrifugal switch 16 in the inboard of back-up ring 11, rotating shaft 4; Also be provided with nylon washer 15 between back-up ring 11 and the left pad 12.
The utility model is by being provided with special pretightning force system on machine shaft, eliminated the assemblage gap between each parts on the machine shaft, effectively prevent rotating shaft play vertically, guaranteed the centrifugal switch location accurately, improved the startup runnability of motor.
Claims (9)
1. the pretightning force system on the machine shaft, it is characterized in that: it comprises back-up ring, left pad, elastic component and right pad, back-up ring is installed in the rotating shaft and is axially located, in back-up ring one side is left pad, elastic component and the right pad that is enclosed within successively in the rotating shaft, and elastic component is sandwiched between left pad and the right pad.
2. the pretightning force system on a kind of machine shaft according to claim 1 is characterized in that: elastic component is a wave washer.
3. the pretightning force system on a kind of machine shaft according to claim 1 is characterized in that: the external motor member is the bearing chamber end face on bearing or the end cap.
4. motor of using the described pretightning force of claim 1 system, comprise stator core, coil windings, rotor, rotating shaft, bearing, front end housing and rear end cap, stator core and front end housing and rear end cap connect by locking device, rotor is installed in the rotating shaft, the rotating shaft two supports is preceding, on the bearing of rear end cap, inboard at least one bearing, the pretightning force system is installed in the rotating shaft, it is characterized in that: this pretightning force system comprises back-up ring, left side pad, elastic component and right pad, back-up ring is installed in the rotating shaft and is axially located, in back-up ring one side is the left pad that is enclosed within successively in the rotating shaft, elastic component and right pad, elastic component are sandwiched between left pad and the right pad.
5. a kind of motor according to claim 4 is characterized in that: elastic component is a wave washer.
6. according to claim 4 or 5 described a kind of motor, it is characterized in that: the external motor member is the bearing chamber end face on bearing or the end cap.
7. a kind of motor according to claim 6 is characterized in that: locking device adopts the screw and nut combined connecting structure.
8. a kind of motor according to claim 4 is characterized in that: back-up ring is fixed on the annular groove the inside in the rotating shaft, installs centrifugal switch in the inboard of back-up ring, rotating shaft.
9. a kind of motor according to claim 8 is characterized in that: also be provided with nylon washer between back-up ring and the left pad.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202958715U CN201674313U (en) | 2009-12-25 | 2009-12-25 | Pretightening force system on electric motor rotating shaft and electric motor adopting the same |
| PCT/CN2010/077240 WO2011076026A1 (en) | 2009-12-25 | 2010-09-23 | Pretightening force system on motor rotating shaft and motor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202958715U CN201674313U (en) | 2009-12-25 | 2009-12-25 | Pretightening force system on electric motor rotating shaft and electric motor adopting the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201674313U true CN201674313U (en) | 2010-12-15 |
Family
ID=43331721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202958715U Expired - Lifetime CN201674313U (en) | 2009-12-25 | 2009-12-25 | Pretightening force system on electric motor rotating shaft and electric motor adopting the same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201674313U (en) |
| WO (1) | WO2011076026A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756373A (en) * | 2014-06-30 | 2015-07-01 | 深圳市大疆创新科技有限公司 | Pan-tilt motor and pan-tilt |
| CN105262268A (en) * | 2015-11-24 | 2016-01-20 | 广东威灵电机制造有限公司 | Rotor assembly and oil bearing motor |
| CN108900041A (en) * | 2018-08-30 | 2018-11-27 | 上海特波电机有限公司 | The variable gap device of AC Motor Control centrifugal switch |
| CN112886753A (en) * | 2020-12-31 | 2021-06-01 | 日电产伺服电机（常州）有限公司 | Motor for massage equipment or rocking chair |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3524360A1 (en) * | 1984-08-07 | 1986-02-20 | VEB Kombinat Robotron, DDR 8010 Dresden | Silenced mounting of the shaft in stepper motors |
| JP2001295837A (en) * | 2000-04-12 | 2001-10-26 | Nsk Ltd | Bearing device |
| CN201022164Y (en) * | 2007-02-15 | 2008-02-13 | 上海南洋电机有限公司 | A bearing room of wind generator electromotor with wave spring |
| CN201038892Y (en) * | 2007-04-13 | 2008-03-19 | 许晓华 | Rotor and end cover assembly structure with automatically-adjusted axial clearance |
-
2009
- 2009-12-25 CN CN2009202958715U patent/CN201674313U/en not_active Expired - Lifetime
-
2010
- 2010-09-23 WO PCT/CN2010/077240 patent/WO2011076026A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756373A (en) * | 2014-06-30 | 2015-07-01 | 深圳市大疆创新科技有限公司 | Pan-tilt motor and pan-tilt |
| CN105262268A (en) * | 2015-11-24 | 2016-01-20 | 广东威灵电机制造有限公司 | Rotor assembly and oil bearing motor |
| CN108900041A (en) * | 2018-08-30 | 2018-11-27 | 上海特波电机有限公司 | The variable gap device of AC Motor Control centrifugal switch |
| CN112886753A (en) * | 2020-12-31 | 2021-06-01 | 日电产伺服电机（常州）有限公司 | Motor for massage equipment or rocking chair |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011076026A1 (en) | 2011-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012070255A1 (en) | Motor for electric power steering device | |
| WO2013028521A8 (en) | Air feed device for a fuel cell | |
| CN201674313U (en) | Pretightening force system on electric motor rotating shaft and electric motor adopting the same | |
| CN102044934A (en) | Motor drive component | |
| CA2668042A1 (en) | Step actuator apparatus | |
| WO2010044537A3 (en) | Step actuator | |
| EP2333343A3 (en) | Electric pump and electric pump mounting structure | |
| CN214293189U (en) | Encoder module, robot joint and robot | |
| WO2008099551A1 (en) | Motor unit, method of assembling motor unit, washing machine, and method of assembling washing machine | |
| TWI322551B (en) | Fan for vehicle and its used motor | |
| CN200976522Y (en) | Diaphragm pump motor | |
| WO2007121828A3 (en) | Subassembly for a commutator motor, commutator motor comprising said subassembly, and method for assembling the commutator motor | |
| CN201599209U (en) | Electric water pump | |
| KR101930330B1 (en) | Motor | |
| CN201750266U (en) | Axial anti-play structure of rotor of small-power direct-current motor | |
| CN100592604C (en) | Small-sized Wind power generator and its assembly method | |
| WO2014094940A3 (en) | Electric motor with fan cowl and sensor | |
| CN207743789U (en) | A kind of novel motor assembling structure | |
| CN105122611A (en) | Rotor-holding structure of rotating electrical machine for hybrid vehicle | |
| JP6040084B2 (en) | Rotation detection device and motor | |
| CN201863122U (en) | Grinding head for static pressure electric main shaft | |
| CN101442237A (en) | Method for mechanically connecting a disk motor | |
| CN205051544U (en) | External rotor PMSM on casing is fixed to bearing | |
| CN103208884A (en) | Feedback element installed on motor rotary shaft | |
| CN203962710U (en) | A kind of novel bearing chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |