CN201018332Y - Bidirectional seal structure for electric motor axis - Google Patents
Bidirectional seal structure for electric motor axis Download PDFInfo
- Publication number
- CN201018332Y CN201018332Y CNU200720107005XU CN200720107005U CN201018332Y CN 201018332 Y CN201018332 Y CN 201018332Y CN U200720107005X U CNU200720107005X U CN U200720107005XU CN 200720107005 U CN200720107005 U CN 200720107005U CN 201018332 Y CN201018332 Y CN 201018332Y
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- Prior art keywords
- motor
- ring
- sealing
- sealing rings
- utility
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- 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
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- Sealing Of Bearings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a double-direction sealing structure for motor shaft, which comprises a bearing carrier connected with output end component of motor gear case. The inner wall of the bearing carrier is provided with a convex ring, at one side of which are two sealing rings and blocking rings in turn. Another side of the convex is the output end component of motor gear case. Two sealing rings are against each other closely, and their ends facing the blocking rings have a ring groove, which internal and external sides form the internal and external double-lip structure. The contact face of the internal lip and ring groove is a tapered face ring. The mouth of the ring groove is wider than the bottom. The utility model not only extends the service life of sealing rings, but also lifts the sealing performance of motor, making motors able to be used in water. On the one hand, the utility model can prevent water from entering motors, and on the other hand, the utility can stop oil in motors leaking out, thus playing the double-layer and double-direction sealing effect.
Description
Technical field
The utility model belongs to machine field, relates in particular to a kind of motor shaft two way seal structure.
Background technology
The motor shaft hermetically-sealed construction generally all is to put into a sealing ring to finish seal operation in bearing pedestal inside, between motor gearbox output cap assemblies and back-up ring.The pressure that this hermetically-sealed construction, sealing ring bear is big, cracky, and, influence the use of motor in case motor water inlet or oil leakage phenomenon can take place immediately in breakage.And having only a sealing ring, sealing effectiveness neither be very desirable.
Summary of the invention
The utility model mainly solves motor shaft sealing ring cracky, sealing effectiveness is undesirable, motor is easily intake or the technical problem of leakage of oil; A kind of sealing ring not cracky, good, the difficult also motor shaft of the not easy oil leakage two way seal structure of intaking of motor of two way seal effect are provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the utility model comprises the bearing pedestal that links to each other with motor gearbox output cap assemblies, the back-up ring of being located at bearing pedestal one end, be provided with two sealing rings in the described bearing pedestal, two sealing rings are between back-up ring and motor gearbox output cap assemblies.Adopt two sealing rings, reduced the pressure that each sealing ring bore, load alleviates, and cracky not prolongs useful life of sealing ring.In addition, if a breakage, also have another to make seal protection, motor can not intake or leakage of oil immediately, prolong motor normal working hours.The dual-seal of double density seal is protected, and has improved the sealing property of motor greatly, and on the one hand anti-sealing enters motor, prevents from the other hand because of the operation of motor reduction gearing produces pressure grease to be leaked out.
As preferably, described two sealing rings are equipped with annular groove towards the end face of back-up ring, and the inside and outside both sides of annular groove form the lips structure of epipharynx, outer lip respectively.The lips structure strengthens the elasticity of sealing ring, and sealing ring can fully be fitted tightly with motor shaft, bearing, further improves sealing, guarantee motor do not intake, oil-proof.
As preferably, described epipharynx 6 is conical surfaces with the contact-making surface of annular groove 5, and the oral area of described annular groove 5 is wideer than the bottom.Further strengthen the elasticity of sealing ring and motor shaft contact-making surface, improve sealing property.
As preferably, described two sealing rings lean on tightly mutually.Dual-seal lightens the load, life-saving.
As preferably, described bearing pedestal inwall is provided with a bulge loop, one side bulge loop be followed successively by two sealing rings, back-up ring, the another side of bulge loop is a motor gearbox output cap assemblies.The bulge loop place forms a space, and sealing ring is not directly contacted with motor gearbox output cap assemblies, thereby avoids the wearing and tearing of the sealing ring that causes because of friction.
The beneficial effects of the utility model are: adopt the double density seal in bearing pedestal, each sealing ring adopts the lips structure, reduces the load of each sealing ring, prolongs the useful life of sealing ring, improves the sealing property of motor greatly.When motor was used in the environment of water is arranged, on the one hand anti-sealing entered motor, prevented that on the other hand the grease in the motor from leaking out, and played dual, two-way sealing function.
Description of drawings
Fig. 1 is a kind of axial section structural representation of the present utility model.
Fig. 2 is a kind of axial section structural representation of the utility model user mode.
1. motor gearbox output cap assemblies among the figure, 2. bearing pedestal, 3. back-up ring, 4. sealing ring, 5. annular groove, 6. epipharynx, 7. outer lip, 8. bulge loop, 9. motor shaft.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the electric motor end cap of present embodiment, as shown in Figure 1, comprise the bearing pedestal 2 that links to each other with motor gearbox output cap assemblies 1, bearing pedestal 2 inwalls have a bulge loop 8, one side of bulge loop 8 is followed successively by two sealing rings 4, back-up ring 3, and the another side of bulge loop 8 is a motor gearbox output cap assemblies 1.Two sealing rings 4 tightly are close together, two sealing rings 4 all have an annular groove 5 towards the end face of back-up ring 3, the inside and outside both sides of annular groove 5 form the lips structure of epipharynx 6, outer lip 7 respectively, and epipharynx 6 is conical surfaces with the contact-making surface of annular groove 5, and the oral area of annular groove 5 is wideer than the bottom.
When the utility model uses, as shown in Figure 2, motor shaft 9 passes bearing pedestal 2, two sealing rings 4, back-up ring 3 successively, and bearing pedestal 2 one ends link to each other with motor gearbox output cap assemblies 1, and sealing ring and sealing ring, sealing ring and bearing pedestal, back-up ring, motor shaft are tightly fitted.Both prolong the useful life of sealing ring, improved the sealing property of motor again greatly.When motor was used in the environment of water is arranged, on the one hand anti-sealing entered motor, prevented that on the other hand the grease in the motor from leaking out, and played dual, two-way sealing function.
Claims (5)
1. motor shaft two way seal structure, comprise the bearing pedestal (2) that links to each other with motor gearbox output cap assemblies (1), the back-up ring (3) of being located at bearing pedestal (2) one ends, it is characterized in that being provided with in the described bearing pedestal (2) two sealing rings (4), two sealing rings (4) are positioned between back-up ring (3) and the motor gearbox output cap assemblies (1).
2. motor shaft two way seal structure according to claim 1, it is characterized in that described two sealing rings (4) are equipped with annular groove (5) towards the end face of back-up ring (3), the inside and outside both sides of annular groove (5) form the lips structure of epipharynx (6), outer lip (7) respectively.
3. motor shaft two way seal structure according to claim 2 is characterized in that the described epipharynx (6) and the contact-making surface of annular groove (5) are conical surfaces, and the oral area of described annular groove (5) is wideer than the bottom.
4. motor shaft two way seal structure according to claim 1 and 2 is characterized in that described two sealing rings (4) lean on tightly mutually.
5. motor shaft two way seal structure according to claim 1 and 2, it is characterized in that described bearing pedestal (2) inwall is provided with a bulge loop (8), one side of bulge loop (8) is followed successively by two sealing rings (4), back-up ring (3), and the another side of bulge loop (8) is a motor gearbox output cap assemblies (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720107005XU CN201018332Y (en) | 2007-03-07 | 2007-03-07 | Bidirectional seal structure for electric motor axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720107005XU CN201018332Y (en) | 2007-03-07 | 2007-03-07 | Bidirectional seal structure for electric motor axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201018332Y true CN201018332Y (en) | 2008-02-06 |
Family
ID=39058832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720107005XU Expired - Lifetime CN201018332Y (en) | 2007-03-07 | 2007-03-07 | Bidirectional seal structure for electric motor axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201018332Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746494A (en) * | 2014-01-03 | 2014-04-23 | 绍兴摩泰机电科技有限公司 | Sealing structure between motor shaft and motor cover |
| CN107299892A (en) * | 2017-06-14 | 2017-10-27 | 深圳市时光电子有限公司 | Miniature diaphragm vavuum pump |
| CN110578753A (en) * | 2019-09-22 | 2019-12-17 | 中国航发沈阳发动机研究所 | Bearing vibration damping structure |
| WO2020103444A1 (en) * | 2018-11-19 | 2020-05-28 | 江苏紫金东方超声电机有限公司 | Liquid-resistant rotary ultrasonic motor employing traveling wave |
-
2007
- 2007-03-07 CN CNU200720107005XU patent/CN201018332Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746494A (en) * | 2014-01-03 | 2014-04-23 | 绍兴摩泰机电科技有限公司 | Sealing structure between motor shaft and motor cover |
| CN103746494B (en) * | 2014-01-03 | 2017-01-11 | 绍兴摩泰机电科技有限公司 | Sealing structure between motor shaft and motor cover |
| CN107299892A (en) * | 2017-06-14 | 2017-10-27 | 深圳市时光电子有限公司 | Miniature diaphragm vavuum pump |
| WO2020103444A1 (en) * | 2018-11-19 | 2020-05-28 | 江苏紫金东方超声电机有限公司 | Liquid-resistant rotary ultrasonic motor employing traveling wave |
| CN110578753A (en) * | 2019-09-22 | 2019-12-17 | 中国航发沈阳发动机研究所 | Bearing vibration damping structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGYANG DONGZHENG MOTOR CO., LTD. Free format text: FORMER OWNER: CHEN ZHENG Effective date: 20110923 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110923 Address after: 322100, No. 3, Jia Jia Road, Dongyang Economic Development Zone, Jinhua, Zhejiang, China Patentee after: Dongyang Dongzheng Motor Co., Ltd. Address before: 322100, Dongyang Economic Development Zone, Zhejiang Province, good wheel road, Dongyang City East Zheng Motor Co., Ltd. Patentee before: Chen Zheng |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |