CN202612638U - Lubricating oil sealing structure of gear motor - Google Patents
Lubricating oil sealing structure of gear motor Download PDFInfo
- Publication number
- CN202612638U CN202612638U CN 201220222125 CN201220222125U CN202612638U CN 202612638 U CN202612638 U CN 202612638U CN 201220222125 CN201220222125 CN 201220222125 CN 201220222125 U CN201220222125 U CN 201220222125U CN 202612638 U CN202612638 U CN 202612638U
- Authority
- CN
- China
- Prior art keywords
- motor
- lubricating oil
- ring
- output shaft
- seal ring
- 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
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- Motor Or Generator Frames (AREA)
- General Details Of Gearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a lubricating oil sealing structure of a gear motor. The lubricating oil sealing structure comprises a motor front end cover. A bearing and a sealing ring sleeved on a motor output shaft and matched with the motor output shaft closely are arranged on the motor front end cover. The lubricating oil sealing structure of the gear motor is characterized in that an oil retaining ring is sleeved on the motor output shaft and arranged on one side of the sealing ring facing a reduction gearbox. By arranging the oil retaining ring in front of the sealing ring, when the gear motor is operated and lubricating oil flows to the sealing ring, the high-pressure lubricating oil in the reduction gearbox is first retained by the oil retaining ring and then bent through 180 degrees at the outer edge of the oil retaining ring to flow back to the sealing ring. At this time, pressure of the lubricating oil is greatly reduced, pressure of the lubricating oil on the sealing ring is greatly reduced, and a sealing effect is guaranteed.
Description
Technical field
The utility model relates to a kind of reducing motor, relates to the seal oil structure between the speed reducer and motor output shaft in a kind of reducing motor with gear reduction box specifically.
Background technique
The gear reduction motor mainly is made up of a motor and gear reduction box two parts, and the output shaft of motor probes in the gear reduction box, through one or more levels gear reduction, exports power from the output shaft of gear reduction box more then.In order to guarantee the lubricated and cooling between the gear reduction box internal gear, inject the lubricant oil of certain liquid level in the casing domestic demand of speed reducer, in some use occasion; Lubricant oil liquid level in might speed reducer will be higher than the output shaft of motor; Possibly cause the lubricant oil in the speed reducer to go out along the output shaft seepage of motor, the lubricant oil liquid level in the speed reducer is descended, influence is to the lubricated and cooling of gear; On the other hand; If lubricant oil infiltrates the short circuit that can cause motor in the coil of motor, existing settling mode normally is provided with a seal ring at the axle shaft place of probeing into of motor front cover and motor, but when working owing to reducing motor; Lubricant oil in the gear-box can be produced certain pressure after stirring, and causes the sealing failure of seal ring easily.
The model utility content
For overcoming above-mentioned defective, the utility model aims to provide a kind of reducing motor seal oil structure that can guarantee that the lubricant oil in the gear reduction box does not leak along motor output shaft.
For achieving the above object; The technological scheme that the utility model adopts is: a kind of reducing motor seal oil structure; Comprise the motor front cover; Have on the said motor front cover one be set on the motor output shaft and with close-fitting bearing of motor output shaft and seal ring, its innovative point is also to be arranged with on the said motor output shaft flinger ring, said flinger ring places the side of seal ring towards speed reducer.
The external diameter of said flinger ring is greater than the external diameter of seal ring.
Quantity in said seal ring is two, and said seal ring is set on the motor output shaft side by side.
Adopted the reducing motor seal oil structure of the utility model, owing to before seal ring, be provided with a flinger ring, when making the reducing motor running; Extreme pressure lubricant in the speed reducer is at first blocked by flinger ring when flowing to seal ring; Outer through flinger ring flows to seal ring again after 180 degree bendings, at this moment, the pressure of lubricant oil reduces greatly; Thereby the lubricating oil pressure that seal ring is received alleviates greatly, has guaranteed sealing effect.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Among the figure: 1-motor front cover, 2-bearing, 3-seal ring, 4-motor output shaft, 5-flinger ring, 6-speed reducer, 7-motor.
Embodiment
As depicted in figs. 1 and 2; The utility model discloses a kind of reducing motor seal oil structure; Comprise motor front cover 1, have on the said motor front cover 1 one be set on the motor output shaft 4 and with motor output shaft 4 close-fitting bearings 2 and seal rings 3, the inner peripheral surface of seal ring 3 and motor output shaft 4 drive fits; The outer circumferential face of seal ring 3 and motor front cover 1 drive fit make speed reducer 6 interior lubricant oil can't flow into the inside of motors 7 along motor output shaft 4.
The innovative point of the reducing motor seal oil structure of the utility model mainly is also to be arranged with on the said motor output shaft 4 flinger ring 5, and said flinger ring places the side of seal ring 3 towards speed reducer 5.Usually between flinger ring 5 and seal ring 3, can there be a space; When reducing motor turns round; After gear in the speed reducer 6 stirs the lubricant oil in it, can make lubricant oil produce certain pressure, and flinger ring 5 is equivalent to before seal ring 3, be provided with a barrier; Blocked of the impact of the lubricant oil of high pressure, the inefficacy after having avoided seal ring 3 because of the compressing that receives extreme pressure lubricant to seal ring 3.
In order to guarantee the retaining oil effect of 5 pairs of seal rings 3 of flinger ring, the external diameter of common said flinger ring 5 must be greater than the external diameter of seal ring 3.In practical application, the external diameter of flinger ring 5 can be 1.2-1.5 times of seal ring 3 external diameters.
Be in order to guarantee reducing motor seal oil effect to greatest extent equally, in practical application, quantity that can also seal ring 3 is set to two, and said seal ring 3 is set on the motor output shaft 4 side by side.
Claims (3)
1. reducing motor seal oil structure; Comprise motor front cover (1); Have on the said motor front cover (1) one be set in that motor output shaft (4) is gone up and with close-fitting bearing of motor output shaft (4) (2) and seal ring (3); It is characterized in that also being arranged with on the said motor output shaft (4) flinger ring (5), said flinger ring places the side of seal ring (3) towards speed reducer (6).
2. reducing motor seal oil structure according to claim 1 is characterized in that the external diameter of the external diameter of said flinger ring (5) greater than seal ring (3).
3. reducing motor seal oil structure according to claim 1, the quantity that it is characterized in that said seal ring (3) is two, said seal ring (3) is set on the motor output shaft (4) side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222125 CN202612638U (en) | 2012-05-17 | 2012-05-17 | Lubricating oil sealing structure of gear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222125 CN202612638U (en) | 2012-05-17 | 2012-05-17 | Lubricating oil sealing structure of gear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612638U true CN202612638U (en) | 2012-12-19 |
Family
ID=47346339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220222125 Expired - Fee Related CN202612638U (en) | 2012-05-17 | 2012-05-17 | Lubricating oil sealing structure of gear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362795A (en) * | 2014-11-28 | 2015-02-18 | 国茂减速机集团有限公司 | Direct connection type motor |
-
2012
- 2012-05-17 CN CN 201220222125 patent/CN202612638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362795A (en) * | 2014-11-28 | 2015-02-18 | 国茂减速机集团有限公司 | Direct connection type 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20170517 |