CN2854230Y - Combined seal ring with spring - Google Patents
Combined seal ring with spring Download PDFInfo
- Publication number
- CN2854230Y CN2854230Y CNU2005200151811U CN200520015181U CN2854230Y CN 2854230 Y CN2854230 Y CN 2854230Y CN U2005200151811 U CNU2005200151811 U CN U2005200151811U CN 200520015181 U CN200520015181 U CN 200520015181U CN 2854230 Y CN2854230 Y CN 2854230Y
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- CN
- China
- Prior art keywords
- sealing lip
- lip
- spring
- ring
- sealing
- 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 - Lifetime
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to a mechanical equipment sealing device, in particular to an improvement to structures such as combined seal ring with spring, which has mainly solved technical problems such as few sealing lip of sealing structure made through existing technology, bad sealing effect, failure in preventing the entering of external mud and dust, etc. The utility model is composed of a framework (1) and a spring ring (2). A seal ring is arranged between the framework (1) and the spring ring (2). The utility model is characterized in that the seal ring is divided into a top sealing lip (3), a middle sealing lip (4) and a bottom sealing lip (5). Roots of the top sealing lip (3), the middle sealing lip (4) and the bottom sealing lip (5) are connected to one end of the framework (1). Sealing direction of the top sealing lip (3) and the middle sealing lip (4) is opposite to that of the bottom sealing lip (5). The bottom sealing lip (5) is in semiorbicular shape, whose middle part is embedded with the spring ring (2).
Description
Technical field
The utility model relates to the seal arrangement on a kind of machinery, especially relates to a kind of to the isostructural improvement of combined type packing ring with spring.
Background technique
Combined seal structure is according to the design of the structural feature of hub-bearing unit, it belongs to low moment of torsion formula sealing, friction torque is less, heating is few, temperature rise is lower, and the excellent ability of resisting external mud, dust is arranged, and the ability that prevents that preferably lubricating grease from leaking is also arranged, can satisfy the high reliability of hub-bearing unit, reach the effect of permanent seal.Chinese patent discloses a kind of rubber and plastic composite rotating axle lip-type packing (publication number: CN 2720198Y), it includes elastomer, skeleton, spring, seal ring master lip, skeleton is inserted in the elastomer, spring is positioned at the neck of seal ring master lip, the friction contact surface of seal ring master lip is provided with one deck polytetrafluoroethylene PTFE thin slice.But the sealing lip of this sealing configuration very little, and sealing effect is relatively poor, and can not prevent that outside mud, dust from immersing.
Summary of the invention
The purpose of this utility model provides a kind of combined type packing ring with spring, its mainly be solve the existing in prior technology sealing configuration sealing lip very little, sealing effect is relatively poor, and can not prevent the technical problem of outside mud, dust immersion etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Combined type packing ring with spring of the present utility model, comprise skeleton and spring ring, be combined with seal ring between skeleton and the spring ring, it is characterized in that described seal ring is divided into sealing lip, middle sealing lip and lower seal lip, the root of last sealing lip, middle sealing lip, lower seal lip connects at an end of skeleton; The sealing direction of last sealing lip, middle sealing lip is opposite with the lower seal lip; The lower seal lip is semi-circular, the semi-circular middle spring ring that embeds.The skeleton external diameter of sealing configuration and flanged outer ring one side internal diameter interference fit, it is semi-circular that lower seal lip end becomes, and the middle spring ring that embeds contacts with the flangeseal raceway groove, have certain pretightening force, can effectively prevent leaking of hub internal lubrication fat.
As preferably, described skeleton one end is bent into oblique changeover portion and flat segments, the skeleton external diameter can with flanged outer ring one side internal diameter interference fit.
As preferably, the described distance that goes up the distance of sealing lip end and skeleton greater than middle sealing lip and skeleton more can keep sealing, and the bearing unit internal structure is kept clean.
Therefore, the sealing lip that the utlity model has sealing configuration is a plurality of, and sealing effect is better, and can prevent characteristics such as outside mud, dust immerse, and be simple and reasonable for structure.
Description of drawings
Accompanying drawing 3 is local structure for amplifying schematic representation of Fig. 2.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the combined type packing ring with spring that this is routine, as Fig. 1, a skeleton 1 is arranged, the bottom in skeleton 1 cross section is bent into oblique changeover portion 1-1 and flat segments 1-2.The bottom flat segments 1-2 of skeleton 1 is combined with spring ring 2 by seal ring.Seal ring is divided into sealing lip 3, middle sealing lip 4 and lower seal lip 5, and the root of last sealing lip 3, middle sealing lip 4, lower seal lip 5 connects at flat segments 1-2 place.The sealing direction of last sealing lip 3, middle sealing lip 4 obliquely, and is and opposite with lower seal lip 5.The root thickness of last sealing lip 3 and middle sealing lip 4 is greater than its end thickness, and the distance of last sealing lip 3 ends and skeleton 1 is greater than the distance of middle sealing lip 4 with skeleton 1.Lower seal lip 5 is semi-circular, the semi-circular middle spring ring 2 that embeds.
During use, as Fig. 2, Fig. 3, a hub-bearing unit is arranged, it includes flange plate 6, and flange plate 6 is combined with flanged outer ring 7, is equipped with steel ball 9 by retainer 8 between flange plate 6 and the outer ring 7.Combined type packing ring with spring is assemblied between flange plate 6 roots and the outer ring 7 skeleton 1 external diameter of the box-like seal ring of cluster spring and flanged outer ring 7 one side internal diameter interference fit.It is semicircle that lower seal lip 5 ends become, and the middle spring ring that embeds contacts with flange plate 6 sealing raceway grooves, has certain pretightening force, can effectively prevent leaking of hub internal lubrication fat.Last sealing lip 3 can prevent that with the double-sealing lip that middle sealing lip 4 is formed outside mud, dust from immersing, and keeps clean the bearing unit internal structure.
Claims (3)
1. combined type packing ring with spring, comprise skeleton (1) and spring ring (2), be combined with seal ring between skeleton (1) and the spring ring (2), it is characterized in that described seal ring is divided into sealing lip (3), middle sealing lip (4) and lower seal lip (5), the root of last sealing lip (3), middle sealing lip (4), lower seal lip (5) connects at an end of skeleton (1); The sealing direction of last sealing lip (3), middle sealing lip (4) is opposite with lower seal lip (5); Lower seal lip (5) is semi-circular, the semi-circular middle spring ring (2) that embeds.
2. combined type packing ring with spring according to claim 1 is characterized in that described skeleton (1) one end is bent into oblique changeover portion (1-1) and flat segments (1-2).
3. combined type packing ring with spring according to claim 1 and 2 is characterized in that the described distance of sealing lip (3) end and skeleton (1) that goes up is greater than the distance of middle sealing lip (4) with skeleton (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200151811U CN2854230Y (en) | 2005-09-27 | 2005-09-27 | Combined seal ring with spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200151811U CN2854230Y (en) | 2005-09-27 | 2005-09-27 | Combined seal ring with spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854230Y true CN2854230Y (en) | 2007-01-03 |
Family
ID=37580862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200151811U Expired - Lifetime CN2854230Y (en) | 2005-09-27 | 2005-09-27 | Combined seal ring with spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854230Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500747A (en) * | 2014-11-21 | 2015-04-08 | 广西智通节能环保科技有限公司 | Silica gel filling U-shaped spring seal ring |
-
2005
- 2005-09-27 CN CNU2005200151811U patent/CN2854230Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500747A (en) * | 2014-11-21 | 2015-04-08 | 广西智通节能环保科技有限公司 | Silica gel filling U-shaped spring seal ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Qianchao Bearing Co., Ltd. Assignor: Wangxiang Qianchao Co., Ltd. Contract fulfillment period: 2009.3.24 to 2014.3.24 Contract record no.: 2009320000560 Denomination of utility model: Combined seal ring with spring Granted publication date: 20070103 License type: Exclusive license Record date: 20090409 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.24 TO 2014.3.24; CHANGE OF CONTRACT Name of requester: JIANGSU QIANCHAO BEARING CO., LTD. Effective date: 20090409 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070103 |
|
| EXPY | Termination of patent right or utility model |