CN203272471U - Seal structure for driving end cover - Google Patents
Seal structure for driving end cover Download PDFInfo
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- CN203272471U CN203272471U CN 201320297694 CN201320297694U CN203272471U CN 203272471 U CN203272471 U CN 203272471U CN 201320297694 CN201320297694 CN 201320297694 CN 201320297694 U CN201320297694 U CN 201320297694U CN 203272471 U CN203272471 U CN 203272471U
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- annular groove
- annular protrusion
- sealing
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- annular
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Abstract
The utility model discloses a seal structure for a driving end cover. The seal structure comprises an annular bulge (1) arranged on the driving end cover and an annular groove (2) formed in an oil seal, wherein the annular bulge (1) extends into the annular groove (2) so as to realize sealed joint; the cross-sectional shape of the convex surface of the annular bulge (1) is of a semi-arced convex surface or a trapezoidal surface; the cross-sectional shape of the concave surface of the annular groove (2) is correspondingly of a semi-arced concave surface or an inverted trapezoidal surface. The seal structure disclosed by the utility model adopts a labyrinth structure with the annular bulge and the annular groove which are matched, the annular bulge is penetrated into the annular groove, especially the joint surfaces of the annular bulge and the annular groove are of a semi-arced surface or a trapezoidal surface, so that the sealing performance of the seal structure can be greatly improved.
Description
[technical field]
The utility model relates to a kind of sealing configuration, more particularly, relates to a kind of sealing configuration of transmission end cap.
[background technique]
In the mechanical ﹠ electrical technology field, rotor is connected bearing to connect with stator, and rotor is in the process of rotating, and bearing need to bear very large pressure and rotate, and so just needing constantly provides lubricant oil to bearing, makes it lubricated, reduces its wearing and tearing.If the sealing mechanism sealability is defective, the lubricant oil in bearing chamber can ooze out from transmission end cap and inner oil seal jointing, will increase like this number of times to the gear-box oiling, has increased very large workload for follow-up maintenance.
At present, transmission end cap and inner oil seal one of following dual modes that adopt seal more:
The first sealing means is to adopt circular rubber band: namely adopt a circular rubber band to be placed in the limit groove of inner oil seal, the internal diameter of circular rubber band is slightly less than the width of inner oil seal limit groove, make complete the putting in the groove of limit of its rubber band energy, then inner oil seal is engaged with the transmission end cap, by screw tightening end cap and inner oil seal, the extruding rubber band makes its junction point be sealed to lubricant oil can not to flow out.
The second sealing means is to be coated with sealer at end cap and inner oil seal surface of contact: namely in the process of installing, coat sealer on the surface of contact of inner oil seal and end cap, the method can all be filled the space in the surface of contact of end cap and inner oil seal, has the better sealing effect of end cap and inner oil seal.But because the cost compare of sealer is expensive, and can not be evenly coated in fully on the surface of contact of inner oil seal in the process that is coated with, if do not install for the first time, need to be coated with once again when again installing.
In sum, how reliably, at low cost with end cap and inner oil seal junction point good seal, the problem that solves existing sealing technique leakage of oil or need repeatedly to apply becomes those skilled in the art's problem demanding prompt solution.
[model utility content]
The technical problems to be solved in the utility model is for existing sealing technique leakage of oil or needs the problem of coating repeatedly, the sealing configuration of the better transmission end cap of a kind of sealability is provided.
The technical solution of the utility model is as described below: a kind of sealing configuration of transmission end cap, described sealing configuration comprises: be arranged on the driving end annular protrusion that covers and the annular groove that is arranged on oil sealing, described annular protrusion stretches into and realizes sealing engagement in annular groove, the crowning sectional shape of described annular protrusion is semi-circle convex surface or trapezoidal faces, and the concave face sectional shape of described annular groove is semi-circle concave surface or inverted trapezoidal face accordingly.
The radial dimension of described annular protrusion equates with the radial dimension of described annular groove, and the axial dimension of described annular protrusion also is provided with the sealing bed course less than the axial dimension of described annular groove between described annular protrusion and described annular groove.
The described annular protrusion that covers at driving end and screw seal washer is set between sidewall, described seal washer is pushing described annular protrusion and the described opposing sidewalls setting that screws sidewall.
The labyrinth structure that sealing configuration of the present utility model adopts annular protrusion to match with annular groove, annular protrusion is deep in annular groove, particularly place, both mating faces is designed to semicircle cambered surface or trapezoidal faces, can improve widely like this sealability of sealing structure.On the other hand, the sealing bed course is set between annular protrusion and annular groove, makes the mutual crush seal bed course of annular protrusion and annular groove, solved further technical problem poorly sealed, easy leakage of oil; And the sealing agency cost is low, reliability is high.
[description of drawings]
Fig. 1 is the structural representation of the utility model embodiment one sealing configuration;
Fig. 2 is the structural representation of the utility model embodiment two sealing configurations;
Fig. 3 is the structural representation of the utility model embodiment three sealing configurations;
Fig. 4 is the structural representation of the utility model embodiment four sealing configurations.
Annular protrusion in the drawings, 1; 2, annular groove; 3, sealing bed course; 4, seal washer; 5, screw sidewall.
[embodiment]
Below in conjunction with accompanying drawing and mode of execution, the utility model is conducted further description:
Embodiment one
The present embodiment provides a kind of sealing configuration of transmission end cap, please refer to Fig. 1, the sealing structure comprises: be arranged on the driving end annular protrusion 1 that covers and the annular groove 2 that is arranged on oil sealing, when the transmission end cap being covered on oil sealing this oil sealing of sealing, annular protrusion 1 stretches into the interior sealing engagement that realizes of annular groove 2.Especially, the mating face of annular protrusion 1 is the semi-circle convex surface, the mating face of annular groove 2 is the semi-circle concave surface, and, the semi-circle concave surface face molded dimension of the semi-circle convex surface of annular protrusion 1 and annular groove 2 is suitable, like this, and when annular protrusion 1 extend into annular groove 2 when interior, combination can be close in the mating face of annular protrusion 1 and annular groove 2, improves widely the sealability of sealing structure.
Embodiment two
The present embodiment provides a kind of sealing configuration of transmission end cap, please refer to Fig. 2, the sealing structure comprises: be arranged on the driving end annular protrusion 1 that covers and the annular groove 2 that is arranged on oil sealing, when the transmission end cap being covered on oil sealing this oil sealing of sealing, annular protrusion 1 stretches into the interior sealing engagement that realizes of annular groove 2.The crowning sectional shape of annular protrusion 1 is trapezoidal faces, the concave face sectional shape of annular groove 2 is the inverted trapezoidal face, the trapezoidal faces of annular protrusion 1 engages sealing with the inverted trapezoidal face of annular groove 2 suitablely, the inverted trapezoidal face face molded dimension that is the trapezoidal faces of annular protrusion 1 and annular groove 2 is suitable, like this, when annular protrusion 1 extend into annular groove 2 when interior, combination can be close in the mating face of annular protrusion 1 and annular groove 2, improves widely the sealability of sealing structure.
Embodiment three
The present embodiment provides a kind of sealing configuration of transmission end cap, please refer to Fig. 3, the sealing structure comprises: be arranged on the annular protrusion 1 that driving end covers and be arranged on annular groove 2 on oil sealing, and be arranged on also to be provided with between annular protrusion 1 and annular groove 2 and seal bed course 3.And the radial dimension of annular protrusion 1 equates with the radial dimension of annular groove 2, and the axial dimension of annular protrusion 1 is less than the axial dimension of annular groove 2.When the transmission end cap being covered on oil sealing this oil sealing of sealing, annular protrusion 1 stretches into the interior sealing engagement that realizes of annular groove 2.The mating face of annular protrusion 1 is the semi-circle convex surface, and the mating face of annular groove 2 is the semi-circle concave surface.Like this, because the radial dimension of annular protrusion 1 equates with the radial dimension of annular groove 2, the axial dimension of annular protrusion 1 is less than the axial dimension of annular groove 2, make and extend into annular groove 2 when interior when annular protrusion 1, annular protrusion 1 and annular groove 2 contacts wall and can be close to combination diametrically, and can hold sealing bed course 3 between the end face mating face of annular protrusion 1 and annular groove 2, and when screwing the transmission end cap, annular protrusion 1 and the mutual crush seal bed course 3 of annular groove 2.Thereby improve widely the sealability of sealing structure.
Embodiment four
The present embodiment provides a kind of sealing configuration of transmission end cap, please refer to Fig. 4, the sealing structure comprises: be arranged on the annular protrusion 1 that driving end covers and be arranged on annular groove 2 on oil sealing, and be arranged on also to be provided with between annular protrusion 1 and annular groove 2 and seal bed course 3.And the radial dimension of annular protrusion 1 equates with the radial dimension of annular groove 2, and the axial dimension of annular protrusion 1 is less than the axial dimension of annular groove 2.When the transmission end cap being covered on oil sealing this oil sealing of sealing, annular protrusion 1 stretches into the interior sealing engagement that realizes of annular groove 2.The mating face of annular protrusion 1 is the semi-circle convex surface, and the mating face of annular groove 2 is the semi-circle concave surface.Like this, because the radial dimension of annular protrusion 1 equates with the radial dimension of annular groove 2, the axial dimension of annular protrusion 1 is less than the axial dimension of annular groove 2, make and extend into annular groove 2 when interior when annular protrusion 1, annular protrusion 1 and annular groove 2 contacts wall and can be close to combination diametrically, and can hold sealing bed course 3 between the end face mating face of annular protrusion 1 and annular groove 2, and when screwing the transmission end cap, annular protrusion 1 and the mutual crush seal bed course 3 of annular groove 2.Thereby improve widely the sealability of sealing structure.
At annular protrusion 1 that driving end covers with screw seal washer 4 is set between sidewall 5, seal washer 4 is pushing annular protrusion 1 and is screwing the opposing sidewalls setting of sidewall 5.
Claims (3)
1. the sealing configuration of a transmission end cap, it is characterized in that, described sealing configuration comprises: be arranged on the annular protrusion (1) that driving end covers and be arranged on annular groove (2) on oil sealing, described annular protrusion (1) stretches in annular groove (2) and realizes sealing engagement, the crowning sectional shape of described annular protrusion (1) is semi-circle convex surface or trapezoidal faces, and the concave face sectional shape of described annular groove (2) is semi-circle concave surface or inverted trapezoidal face accordingly.
2. sealing configuration according to claim 1, it is characterized in that, the radial dimension of described annular protrusion (1) equates with the radial dimension of described annular groove (2), the axial dimension of described annular protrusion (1) also is provided with sealing bed course (3) less than the axial dimension of described annular groove (2) between described annular protrusion (1) and described annular groove (2).
3. according to claim 1 or 2 described sealing configurations, it is characterized in that, at described annular protrusion (1) that driving end covers with screw seal washer (4) is set between sidewall (5), described seal washer (4) is pushing described annular protrusion (1) and the described opposing sidewalls setting that screws sidewall (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320297694 CN203272471U (en) | 2013-05-28 | 2013-05-28 | Seal structure for driving end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320297694 CN203272471U (en) | 2013-05-28 | 2013-05-28 | Seal structure for driving end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272471U true CN203272471U (en) | 2013-11-06 |
Family
ID=49502893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320297694 Expired - Fee Related CN203272471U (en) | 2013-05-28 | 2013-05-28 | Seal structure for driving end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094585A (en) * | 2019-04-26 | 2019-08-06 | 江苏神马电力股份有限公司 | A kind of seal assembly and gas casing |
-
2013
- 2013-05-28 CN CN 201320297694 patent/CN203272471U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094585A (en) * | 2019-04-26 | 2019-08-06 | 江苏神马电力股份有限公司 | A kind of seal assembly and gas casing |
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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: 20131106 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |