CN203596693U - External rotor motor - Google Patents

External rotor motor Download PDF

Info

Publication number
CN203596693U
CN203596693U CN201320808121.XU CN201320808121U CN203596693U CN 203596693 U CN203596693 U CN 203596693U CN 201320808121 U CN201320808121 U CN 201320808121U CN 203596693 U CN203596693 U CN 203596693U
Authority
CN
China
Prior art keywords
rotating shaft
oil
bearings
oil storage
stator
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 - Fee Related
Application number
CN201320808121.XU
Other languages
Chinese (zh)
Inventor
孔杏玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU XUE ER ELECTRIC APPLIANCE Co Ltd
Original Assignee
HANGZHOU XUE ER ELECTRIC APPLIANCE Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANGZHOU XUE ER ELECTRIC APPLIANCE Co Ltd filed Critical HANGZHOU XUE ER ELECTRIC APPLIANCE Co Ltd
Priority to CN201320808121.XU priority Critical patent/CN203596693U/en
Application granted granted Critical
Publication of CN203596693U publication Critical patent/CN203596693U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses an external rotor motor which comprises a rotor, a stator, a rotating shaft and an end cover, wherein the rotating shaft is installed on the center of the rotor and is matched with the stator through two bearing installed in a stator central sleeve, the outer wall of the rotating shaft is provided with an oil storage sleeve, the oil storage sleeve is arranged between the two bearings, and two ends of the oil storage sleeve are close to the bearings. According to the utility model, the oil storage sleeve is arranged on the outer wall of the rotating shaft, a lubricating oil is added through an oil feeding hole in the rotating shaft, and under the rotation of the rotating shaft, the lubricating oil in the oil storage sleeve enters the gaps between the bearings and bearing inner rings along the axial direction of the rotating shaft, so that the bearings and the bearing inner rings are fully lubricated, and oil films exists on the contact surfaces of the bearings and the bearing inner rings; in addition, the oil films themselves have certain supporting force, and the oil films can support the rotating shaft to a certain extent, so that axial runout and deflection movement of the rotating shaft cannot lead to dry friction, wear is avoided, and the problems that the motor is stuck or burned are reduced.

Description

External rotor electric machine
Technical field
The utility model relates to a kind of motor, especially a kind of external rotor electric machine.
Background technology
Existing motor product, by the arrangement of stator and rotor, can be divided into inner rotor type motor and external-rotor motor.Inner rotor type motor rotor is rotatably installed in stator interior, and external-rotor motor rotor is rotatably installed in stator outside.Due to the design feature of external rotor electric machine, between rotating shaft and bearing inner race, by matched in clearance, exist certain gap between the two.When motor is in the process of running, due to the effect of magnetic field force, make external rotor in rotating, exist axial trace to beat, when manufacturing and the existence of concentricity error in the time of installation, cause external rotor also to exist beat motion radially, the axial runout of external rotor and radial beat motion all can pass to rotating shaft, making also synchronously to produce radial and axial trace between rotating shaft and bearing inner race moves, make rotating shaft and bearing inner race occur friction, produce localized hyperthermia, thereby friction simultaneously can make galling occur metal particle, localized hyperthermia can make rotating shaft and the too early damage of bearing, metal particle can aggravate the wearing and tearing between rotating shaft and bearing inner race, form vicious circle, finally can cause the stuck or scaling loss of motor.
Utility model content
The utility model technical issues that need to address be to provide a kind of can be to the external rotor electric machine that lubricating oil is provided between rotating shaft and bearing inner race for a long time.
For addressing the above problem, technical solution adopted in the utility model is: a kind of external rotor electric machine, comprise rotor, stator, rotating shaft and end cap, its shaft is arranged on rotor center, and coordinate with stator by two bearings that are arranged in stator center sleeve pipe, the outer wall of described rotating shaft is provided with the oil storage sleeve pipe of being made up of malthoid, oil storage sleeve pipe between two bearings and two ends and bearing adjacent.
This novel tank filler sleeve being arranged in rotating shaft that also comprises, tank filler sleeve is made up of radial hole and axial hole, and radial hole and axial hole are communicated with, and outer wall and oil storage sleeve pipe that wherein radial hole leads to rotating shaft join, and axial hole leads to rotating shaft top, for refueling.
Described end cap center is provided with a hole, and silk is installed plug on hole.
The beneficial effect that adopts technique scheme to produce is: the utility model is by arranging oil storage sleeve pipe at rotating shaft outer wall, simultaneously can be by being arranged on the tank filler sleeve charging-up lubricant oil in rotating shaft, lubricating oil in oil storage sleeve pipe is under the rotation of rotating shaft, lubricating oil axially supplements in the gap entering between rotating shaft and bearing inner race along rotating shaft, make sufficient lubrication between rotating shaft and bearing inner wall, make both contact-making surfaces exist oil film, because oil film itself exists certain support force, can carry out certain support by countershaft, make axial runout and the beat motion of rotating shaft can not cause dry friction, thereby there will not be wearing and tearing, reduce the problem of the stuck scaling loss of motor.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Wherein: 1, stator, 2, rotor, 3, plug, 4, rotating shaft, 5, oil storage sleeve pipe, 6, end cap, 7, tank filler sleeve.
Embodiment
Below in conjunction with accompanying drawing, utility model is described in further detail: as shown in Figure 1, this Novel external rotor motor comprises rotor 2, stator 1, rotating shaft 4, end cap 6 and tank filler sleeve 7, its shaft 4 is arranged on rotor 2 centers, and coordinate with stator 1 by two bearings that are arranged in stator center sleeve pipe, the outer wall of rotating shaft 4 is provided with the oil storage sleeve pipe 5 of being made up of malthoid, oil storage sleeve pipe 5 between two bearings and two ends and bearing adjacent, in oil storage sleeve pipe, store lubricating oil.Tank filler sleeve 7 is arranged in rotating shaft 4, and tank filler sleeve is made up of radial hole and axial hole, and radial hole and axial hole are communicated with, and outer wall and oil storage sleeve pipe 5 that wherein radial hole leads to rotating shaft 4 join, and axial hole leads to rotating shaft 4 tops, for refueling.The size of tank filler sleeve is not to affect the strength and stiffness of rotating shaft, and facilitate charging-up lubricant oil is standard simultaneously.
In order to facilitate charging-up lubricant oil, be provided with a hole at described end cap center, silk is installed plug on hole.
In order regularly to give motor charging-up lubricant oil, be provided with a hole at end cap 6 centers, silk is installed plug on hole.Take off plug, can give oil storage sleeve pipe 5 charging-up lubricant oils by tank filler sleeve 7.

Claims (3)

1. an external rotor electric machine, comprise rotor (2), stator (1), rotating shaft (4) and end cap (6), its shaft is arranged on rotor center, and coordinate with stator by two bearings that are arranged in stator center sleeve pipe, it is characterized in that: the outer wall of described rotating shaft (4) is provided with the oil storage sleeve pipe (5) of being made up of malthoid, oil storage sleeve pipe (5) between two bearings and two ends and bearing adjacent.
2. external rotor electric machine according to claim 1, characterized by further comprising the tank filler sleeve (7) being arranged in rotating shaft, tank filler sleeve is made up of radial hole and axial hole, radial hole and axial hole are communicated with, outer wall and oil storage sleeve pipe that wherein radial hole leads to rotating shaft join, axial hole leads to rotating shaft top, for refueling.
3. external rotor electric machine according to claim 1, is characterized in that described end cap (6) center is provided with a hole, and silk is installed plug (3) on hole.
CN201320808121.XU 2013-12-11 2013-12-11 External rotor motor Expired - Fee Related CN203596693U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320808121.XU CN203596693U (en) 2013-12-11 2013-12-11 External rotor motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320808121.XU CN203596693U (en) 2013-12-11 2013-12-11 External rotor motor

Publications (1)

Publication Number Publication Date
CN203596693U true CN203596693U (en) 2014-05-14

Family

ID=50677550

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320808121.XU Expired - Fee Related CN203596693U (en) 2013-12-11 2013-12-11 External rotor motor

Country Status (1)

Country Link
CN (1) CN203596693U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110212676A (en) * 2019-04-25 2019-09-06 南方电机科技有限公司 A kind of rotation motor and equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110212676A (en) * 2019-04-25 2019-09-06 南方电机科技有限公司 A kind of rotation motor and equipment

Similar Documents

Publication Publication Date Title
CN202370848U (en) Rolling rotor compressor
CN203596693U (en) External rotor motor
CN102000617B (en) Main shaft system of vertical shaft type sand maker
CN205331209U (en) High -efficient antifriction bearing
CN203596698U (en) External rotor motor
CN202991152U (en) Integrated floating bearing positioning structure for gasoline engine turbocharger
CN204497908U (en) A kind of high-speed electric expreess locomotive
CN103545974B (en) The lubrication system of the bearing assembly of water conservancy and biochemistry vertical machine
CN202971589U (en) Structure of hot wind motor of vibrating fluidized bed
CN206503838U (en) A kind of permanent magnet contactless bearing carrying roller
CN202840781U (en) Bearing lubricating structure for drive motor
CN201807390U (en) Main shaft system of vertical shaft sand making machine
CN204174355U (en) A kind of durable rotor spinning machine rubber roll
CN204082896U (en) A kind of high-mechanic noise free gear-bearing
CN202301479U (en) Connecting structure of food waste disposer shell seat and deep groove ball bearing
CN201884485U (en) Two-stage bearing pair structure
CN202713027U (en) Self-aligning support for fixing spindle of low-power motor
CN203434786U (en) Bearing structure of motor
CN203333879U (en) Novel rotor bearing
CN202597468U (en) Oil ring guiding device for sliding bearing
CN202918104U (en) Motor straightening bearing
CN203146588U (en) Magnetic suspension bearing
CN203416083U (en) Motor bearing seal structure
CN207437335U (en) A kind of rotor external supporting structure of plunger pump
CN201752091U (en) Axial locating structure of electromotor shaft

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140514

Termination date: 20151211

EXPY Termination of patent right or utility model