CN201928113U - Sealing end-cover structure for high-efficiency motor - Google Patents
Sealing end-cover structure for high-efficiency motor Download PDFInfo
- Publication number
- CN201928113U CN201928113U CN2011200145197U CN201120014519U CN201928113U CN 201928113 U CN201928113 U CN 201928113U CN 2011200145197 U CN2011200145197 U CN 2011200145197U CN 201120014519 U CN201120014519 U CN 201120014519U CN 201928113 U CN201928113 U CN 201928113U
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- bearing
- cover
- end cover
- electric motor
- motor end
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Abstract
The utility model discloses a sealing end-cover structure for a high-efficiency motor, which comprises a motor end cover, wherein the motor end cover is fixedly connected onto a motor seat, a bearing for supporting a motor rotating shaft is installed in a bearing hole of the motor end cover, a bearing outer cover is arranged at the outer side of the bearing, and an O-shaped sealing ring and a lip-shaped sealing ring are sequentially arranged in a shaft hole of the bearing outer cover from outside to inside. A bearing inner cover is arranged at the inner side of the bearing, and an inner-cover seal is arranged in the shaft hole of the bearing inner cover. The inner-cover seal is an O-shaped sealing ring. The O-shaped sealing ring is a two-way O-shaped sealing ring, and the lip-shaped sealing ring is framework-type oil seal with a hooping spring. The sealing end-cover structure for the motor has the advantages that the sealing performance is excellent, the structure is simple and reasonable, and the invasion of water, dust and dirt can be effectively blocked, and can be widely applicable to various motors and particularly to high-efficiency asynchronous motors.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to motor output revolving shaft dustproof and waterproof end cover structure.
Background technology
Threephase asynchronous is an of paramount importance electric equipment in the electric drive system, and it is simple in structure, reliable with it, low price and being widely used in the industrial and agricultural production, is to realize electrified indispensable power-equipment.
Threephase asynchronous mainly comprises stator and rotor, and its stator is fixed on the electric machine stand, and rotor is fixedlyed connected with machine shaft, and machine shaft is rotatably supported on the electric machine stand by electric motor end cap and bearing.Because leave the gap between machine shaft and the end cap central bore, steam, dust and dirt are easy to invade bearing along this gap, and in the motor cavity, cause the motor windings short circuit, the winding copper loss increases and is overheated, and aggravation winding insulation layer is aging, even burns; Especially in the asynchronous motor of high-pressure cooling water cooling, the intrusion of cooling water is difficult to avoid especially; Gap between machine shaft and bearing cap centre bore also makes bearing oil leak easily simultaneously, not only aggravates the wearing and tearing of bearing, increases power consumption, and pollutes environment for use.
The utility model content
At the above-mentioned deficiency of existing in prior technology, technical problem to be solved in the utility model is to provide a kind of steam of effectively blocking to invade good seal performance, simple high-efficiency electric motor end cover structure rational in infrastructure.
In order to solve the problems of the technologies described above, high-efficiency electric motor end cover structure of the present utility model, comprise the electric motor end cap that is fixedly connected on the electric machine stand, the bearing that is used for the supporting motor rotating shaft is installed in the dead eye of this electric motor end cap, the arranged outside of described bearing has bearing end cover, outside in is disposed with O RunddichtringO and lip-type seal circle in the axis hole of this bearing end cover.
After adopting said structure, owing in the axis hole of bearing end cover, be disposed with O RunddichtringO and lip-type seal circle, the O RunddichtringO is not only simple in structure, working service convenient, and has a two way seal ability, can block the intrusion of extraneous steam, dust, can prevent leaking of bearing oil again, and the lip-type seal circle has resistance to pressure and durability preferably, and the self-tightening effect is particularly remarkable; This structure has adopted multi-sealed pattern; sealing property is superior; be not only applicable to common threephase asynchronous; and particularly suitable uses on high energy efficiency motor and water-cooled motor; stop the generation of phenomenons such as the infiltration of motor output revolving shaft and high-pressure cooling water intrusion; thereby protected normal, the efficient operation of motor effectively, long service life, operational efficiency height.
A kind of preferred implementation of the present utility model, the inboard of described bearing is provided with internal bearing cover, is provided with the inner cap sealing in the axis hole of this internal bearing cover.Described inner cap is sealed into the O RunddichtringO.This structure places the annular seal space between bearing end cover and internal bearing cover with making bearing seal, the bearing oil contaminated environment that do not leak, bearing lubrication is effective, wearing and tearing less, low, the long service life of energy consumption.
Another preferred implementation of the present utility model, described O RunddichtringO are two road O RunddichtringOs, and described lip-type seal circle is the skeleton oil sealing that has the banding spring.The skeleton oil sealing that has the banding spring has follows compensatoryly preferably, and this oil sealing can obtain good sealing effectiveness with less radial load.
Description of drawings
Below in conjunction with accompanying drawing with have execution mode the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is an end cap hermetically-sealed construction enlarged diagram in the execution mode shown in Figure 1.
Among the figure, 1-electric machine stand, 2-electric motor end cap, 3-machine shaft, 4-bearing end cover, 5-bearing, 6-internal bearing cover, 7-motor suspension ring, 8-motor stator, 9-rotor, 10-fan, 11-fan guard, 12-O RunddichtringO, 13-lip-type seal circle, the sealing of 14-inner cap.
Embodiment
In Fig. 1, high-efficiency electric motor end cover structure shown in Figure 2, motor stator 8 is fixed in the seat chamber of electric machine stand 1, and rotor 9 is fixedly connected on the machine shaft 3, leaves the air gap between motor stator 8 and the rotor 9.Machine shaft 3 is by being installed on the electric motor end cap 2 at electric machine stand 1 two ends, and the bearing 5 in these electric motor end cap 2 dead eyes is rotatably supported on the electric machine stand 1, and electric motor end cap 2 is fixedly connected on the electric machine stand 1.
Arranged outside at bearing 5 has bearing end cover 4, outside in is disposed with twice O RunddichtringO 12 in the axis hole of this bearing end cover 4 with lip-type seal circle 13, and lip-type seal circle 13 is for having the skeleton oil sealing of banding spring.Bearing 5 is a radial ball bearing, can certainly adopt entad standard rolling bearing commonly used such as spherical bearing, taper roll bearing.
Be provided with internal bearing cover 6 in the inboard of bearing 5, be provided with inner cap sealing 14 in the axis hole of this internal bearing cover 6, this inner cap sealing 14 is three road O type rubber seal.
Also be provided with motor suspension ring 7 and fan guard 11 on motor cabinet 1, the fan 10 that is positioned at fan guard 11 is installed on the tail end of machine shaft 3.The electric motor end cap 2 at electric machine stand 1 two ends has at least one to adopt structure of the present utility model, promptly two electric motor end caps 2 can all adopt hermetically-sealed construction, also can adopt different structure, in the bottom of electric machine stand 1 and be positioned at the stator coil end position and be provided with apopore, be plugged with the unidirectional plug that leaks in this apopore, so that discharge the foreign material such as ponding, steam and dust and dirt in the support chamber.
Claims (6)
1. high-efficiency electric motor end cover structure, comprise the electric motor end cap (2) that is fixedly connected on the electric machine stand (1), the bearing (5) that is used for supporting motor rotating shaft (3) is installed in the dead eye of this electric motor end cap (2), it is characterized in that: the arranged outside of described bearing (5) has bearing end cover (4), outside in is disposed with O RunddichtringO (12) and lip-type seal circle (13) in the axis hole of this bearing end cover (4).
2. high-efficiency electric motor end cover structure according to claim 1 is characterized in that: the inboard of described bearing (5) is provided with internal bearing cover (6), is provided with inner cap sealing (14) in the axis hole of this internal bearing cover (6).
3. high-efficiency electric motor end cover structure according to claim 2 is characterized in that: described inner cap sealing (14) is the O RunddichtringO.
4. high-efficiency electric motor end cover structure according to claim 1 is characterized in that: described O RunddichtringO (12) is two road O RunddichtringOs, and described lip-type seal circle (13) is for having the skeleton oil sealing of banding spring.
5. high-efficiency electric motor end cover structure according to claim 3 is characterized in that: described inner cap sealing (14) is three road O type rubber seal.
6. high-efficiency electric motor end cover structure according to claim 1 is characterized in that: described bearing (5) is radial ball bearing, entad spherical bearing or taper roll bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200145197U CN201928113U (en) | 2011-01-18 | 2011-01-18 | Sealing end-cover structure for high-efficiency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200145197U CN201928113U (en) | 2011-01-18 | 2011-01-18 | Sealing end-cover structure for high-efficiency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928113U true CN201928113U (en) | 2011-08-10 |
Family
ID=44431948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200145197U Expired - Fee Related CN201928113U (en) | 2011-01-18 | 2011-01-18 | Sealing end-cover structure for high-efficiency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201928113U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305696A (en) * | 2014-07-04 | 2016-02-03 | 沈阳兴华航空电器有限责任公司 | High-protection-level brushless direct current motor |
| CN106300776A (en) * | 2016-10-08 | 2017-01-04 | 江苏美邦电机科技有限公司 | high efficiency motor |
-
2011
- 2011-01-18 CN CN2011200145197U patent/CN201928113U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305696A (en) * | 2014-07-04 | 2016-02-03 | 沈阳兴华航空电器有限责任公司 | High-protection-level brushless direct current motor |
| CN106300776A (en) * | 2016-10-08 | 2017-01-04 | 江苏美邦电机科技有限公司 | high efficiency motor |
| CN106300776B (en) * | 2016-10-08 | 2018-08-07 | 江苏美邦电机科技有限公司 | Motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20160118 |
|
| EXPY | Termination of patent right or utility model |