CN201966720U - Motor protection sealing member - Google Patents
Motor protection sealing member Download PDFInfo
- Publication number
- CN201966720U CN201966720U CN2011200024309U CN201120002430U CN201966720U CN 201966720 U CN201966720 U CN 201966720U CN 2011200024309 U CN2011200024309 U CN 2011200024309U CN 201120002430 U CN201120002430 U CN 201120002430U CN 201966720 U CN201966720 U CN 201966720U
- Authority
- CN
- China
- Prior art keywords
- outer ring
- metal outer
- motor
- motor shaft
- face
- 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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- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a motor protection sealing member, which comprises a metal outer ring and a rubber member, wherein the outer end part of the metal outer ring is a shaft connection part to be connected with a motor shaft; the inner end part of the metal outer ring is gradually expanded to form a flared opening; the rubber member is arranged in the metal outer ring and has a shape which is matched with that of the metal outer ring; the shaft connection part of the metal outer ring is connected to the motor shaft in an interference fit mode; a certain gap is reserved between the flared opening end of the metal outer ring and an outer end face of a bearing outer cover; and an end face of the flared opening of the rubber member is hermetically contacted with the outer end face of the bearing outer cover. The sealing member has a simple, skilful and rational structure; the defect that a sealing surface is separated from the end face of the bearing outer cover during use of a V-shaped shaft seal ring can be overcome, and the defect of high temperature of the motor shaft and a bearing caused by friction between a framework oil seal and the motor shaft during use of the framework oil seal can be overcome; the protection level can reach over IP55; and the use cost is lower than that of the framework oil seal used.
Description
Technical field
The utility model relates to a kind of motor exclusion seal spare, specifically a kind of exclusion seal spare that is contained on motor shaft and the bearing end cover end face, and it can make the degree of protection of motor reach more than the IP55.
Background technology
The shell of Small-Sized Three-Phase Induction need have certain degree of protection, to prevent entering of foreign object (as water, dust, solid granule), avoids electromechanics performance and electric property are damaged.In the prior art, the exclusion seal spare of motor shaft and bearing end cover V-packing ring commonly used or outside framework oil seal, their pluses and minuses are as follows respectively: (1), V-packing ring are made with nitrile rubber, degree of protection can reach IP54, packing ring is contained on the motor shaft by the tensile force of rubber, and sealing surface contacts with the bearing end cover end face.During the motor rotation, because action of centrifugal force, the V-packing ring can outwards move, and sealing surface and bearing end cover end face are broken away from, and barrier propterty descends, and this is its shortcoming.(2), when using skeleton oil seal, degree of protection can reach more than the IP55, its shortcoming is that oil seal spring is held tightly on motor shaft, in motor when rotation, produce friction, causes that motor shaft and bearing temperature are too high.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple, ingenious, rational motor exclusion seal spare is provided, when it both can avoid adopting the V-packing ring, and the defective that sealing surface and bearing end cover end face break away from; In the time of can avoiding adopting outside framework oil seal again, outside framework oil seal and motor shaft produce friction, cause the high shortcoming of motor shaft and bearing temperature.
The technical scheme that provides according to the utility model: a kind of motor exclusion seal spare, it is characterized in that: it comprises metal outer ring and rubber parts, the outer end of metal outer ring is the axle connecting portion that is connected with motor shaft, and the inner end of metal outer ring extends out gradually, forms tubaeform mouthful; Described rubber parts is installed in the metal outer ring, and the outer loop-shaped of the shape of rubber parts and metal is suitable; The axle connecting portion of described metal outer ring is connected on the motor shaft with interference fit, and tubaeform mouthful of end of metal outer ring leaves certain interval with the outer face of bearing end cover, and tubaeform mouthful of end face of described rubber parts contacts with the outer face sealing of bearing end cover.
As further improvement of the utility model, described metal outer ring adopts the sheet metal punching out to form.
As further improvement of the utility model: described rubber parts adopts the wear-resistance and oil-resistance rubber injection mold to form.
As further improvement of the utility model, be provided with in the described metal outer ring and be used to block rubber parts, prevent the collar that rubber parts is deviate from.
The utility model compared with prior art, advantage is: simple in structure, ingenious, reasonable, in the time of both can avoiding adopting the V-packing ring, the defective that sealing surface and bearing end cover end face break away from; In the time of can avoiding adopting outside framework oil seal again, outside framework oil seal and motor shaft produce friction, cause the high shortcoming of motor shaft and bearing temperature; Degree of protection can reach more than the IP55, and use cost is lower than adopting outside framework oil seal.
Description of drawings
Fig. 1 is an applicable cases schematic diagram of the present utility model.
Fig. 2 is the structure enlarged diagram of seal among Fig. 1.
Fig. 3 is the metal outer ring structure schematic diagram in Fig. 2 seal.
Fig. 4 is the rubber parts structural representation in Fig. 2 seal.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As Fig. 1 ~ shown in Figure 4, motor exclusion seal spare 2 described in the utility model is mainly assembled by metal outer ring 4 and rubber parts 5 two parts.
As Fig. 1 ~ shown in Figure 3, metal outer ring 4 is to be formed by the punching out of certain structure geomery by sheet metal, and the outer end of metal outer ring 4 is the axle connecting portion 4a that are connected with motor shaft 1, and the inner end of metal outer ring 4 extends out gradually, forms tubaeform mouth 4b; The axle connecting portion 4a of described metal outer ring 4 is connected on the motor shaft 1 with interference fit, and tubaeform mouthful of 4b end of metal outer ring 4 leaves certain interval with the outer face of bearing end cover 3.
As Fig. 1,2, shown in Figure 4, described rubber parts 5 adopts the wear-resistance and oil-resistance rubber injection mold to form, and rubber parts 5 is installed in the metal outer ring 4, and the shape of rubber parts 5 and metal outer ring 4 shapes are suitable; Tubaeform mouthful of 5a end face of described rubber parts 5 contacts with the outer face sealing of bearing end cover 3.
As shown in Figure 3, also be provided with collar 6 in the described metal outer ring 4, rubber parts 5 is blocked to deviate from by collar 6 after being contained in the metal outer ring 4, has improved security reliability of the present utility model.
Concrete application of the present utility model is as follows:
Seal 2 usefulness specific purpose tools of the present utility model are contained on the motor shaft 1.During the motor operation, because metal outer ring 4 and motor shaft 1 are interference fit, metal outer ring 4 is followed motor shaft 1 and is rotated together, and seal 2 can outwards not move owing to action of centrifugal force, rubber parts 5 remains effective seal with bearing end cover 3 outer faces and contacts, and plays good protective action.And, reduced the temperature of motor shaft 1 and bearing effectively owing to do not produce the rotation friction between metal outer ring 4 and the motor shaft 1, help prolonging the useful life of motor.
Claims (4)
1. motor exclusion seal spare, it is characterized in that: it comprises metal outer ring (4) and rubber parts (5), the outer end of metal outer ring (4) is the axle connecting portion (4a) that is connected with motor shaft (1), and the inner end of metal outer ring (4) extends out gradually, forms tubaeform mouthful (4b); Described rubber parts (5) is installed in the metal outer ring (4), and the shape of rubber parts (5) and metal outer ring (4) shape are suitable; The axle connecting portion (4a) of described metal outer ring (4) is connected on the motor shaft (1) with interference fit, certain interval is left in tubaeform mouthful (4b) end and the outer face of bearing end cover (3) of metal outer ring (4), and tubaeform mouthful of (5a) end face of described rubber parts (5) contacts with the outer face sealing of bearing end cover (3).
2. motor exclusion seal spare as claimed in claim 1 is characterized in that: described metal outer ring (4) adopts the sheet metal punching out to form.
3. motor exclusion seal spare as claimed in claim 1 is characterized in that: described rubber parts (5) adopts the wear-resistance and oil-resistance rubber injection mold to form.
4. motor exclusion seal spare as claimed in claim 1 is characterized in that: be provided with in the described metal outer ring (4) and be used to block rubber parts (5), prevent the collar (6) that rubber parts (5) is deviate from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200024309U CN201966720U (en) | 2011-01-06 | 2011-01-06 | Motor protection sealing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200024309U CN201966720U (en) | 2011-01-06 | 2011-01-06 | Motor protection sealing member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201966720U true CN201966720U (en) | 2011-09-07 |
Family
ID=44529272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200024309U Expired - Fee Related CN201966720U (en) | 2011-01-06 | 2011-01-06 | Motor protection sealing member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201966720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411021A (en) * | 2016-10-08 | 2017-02-15 | 上海川也电机有限公司 | Sealing device for motor lubricating oil way |
-
2011
- 2011-01-06 CN CN2011200024309U patent/CN201966720U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411021A (en) * | 2016-10-08 | 2017-02-15 | 上海川也电机有限公司 | Sealing device for motor lubricating oil way |
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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: 20110907 Termination date: 20130106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |