CN202991878U - Sealing structure of combined part of transmission end cover and inner oil seal - Google Patents
Sealing structure of combined part of transmission end cover and inner oil seal Download PDFInfo
- Publication number
- CN202991878U CN202991878U CN 201220729032 CN201220729032U CN202991878U CN 202991878 U CN202991878 U CN 202991878U CN 201220729032 CN201220729032 CN 201220729032 CN 201220729032 U CN201220729032 U CN 201220729032U CN 202991878 U CN202991878 U CN 202991878U
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- Prior art keywords
- groove
- flange collar
- oil seal
- inner oil
- transmission end
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Abstract
The utility model provides a sealing structure of a combined part of a transmission end cover and an inner oil seal. The sealing structure comprises a first convex ring arranged on the transmission end cover and a first groove arranged on the inner oil seal, wherein the first convex ring stretches into the first groove to realize sealed joint. The sealing structure disclosed by the utility model adopts a labyrinth structure formed by matching the convex ring and the groove; the convex ring stretches into the groove and the convex ring and the groove are matched, so that the sealing effect of the joint part of the transmission end cover and the inner oil seal is better, and the technical problems of not airtight sealing and easiness in leaking oil are solved; and the sealing structure is low in cost and high in reliability.
Description
Technical field
The utility model relates to the bearing seal mechanical field, and more particularly, particularly the sealing configuration of a kind of transmission end cap and inner oil seal connecting part, be mainly to prevent that the lubricant oil in bearing chamber from outwards oozing out from the junction of transmission end cap and inner oil seal.
Background technique
Make the field at locomotive engine, rotor is connected bearing to connect with stator, and rotor is in the process of rotating, and bearing bears very large pressure when rotating, and so just needing constantly provides lubricant oil to make it lubricated to bearing, thereby reduces its wearing and tearing.If the sealing configuration sealability is defective, the lubricant oil in bearing chamber can ooze out from the surface of contact of transmission end cap and inner oil seal, 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 sealing, but this mode can not stop outflow of lubrication oil effectively.
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 high, 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, become those skilled in the art's problem demanding prompt solution.
The model utility content
The technical problems to be solved in the utility model is for providing the sealing configuration of a kind of transmission end cap and inner oil seal connecting part, and the labyrinth structure that the sealing structure adopts convex-concave to coordinate has solved technical problem poorly sealed, easy leakage of oil; And the sealing construction cost is low, reliability is high.
For solving the problems of the technologies described above, the utility model provides the sealing configuration of a kind of transmission end cap and inner oil seal connecting part, described sealing configuration comprises: be arranged on driving end the first flange collar that covers and the first groove that is arranged on inner oil seal, described the first flange collar stretches in described the first groove and realizes sealing engagement.
Preferably, described sealing configuration also covers at driving end and is provided with the second groove, is provided with the second flange collar on inner oil seal, and described the second flange collar stretches in described the second groove and realizes sealing engagement.
Preferably, the radial dimension of described the first flange collar and described the second flange collar equates with the radial dimension of described the first groove and described the second groove respectively.
Preferably, the axial dimension of described the first flange collar and described the second flange collar is respectively less than the axial dimension of described the first groove and described the second groove, be provided with the first seal washer between described the first flange collar and described the first groove, be provided with the second seal washer between described the second flange collar and described the second groove.
Preferably, described the first seal washer and the second seal washer are attached on respectively on the end face of described the first flange collar and described the second flange collar.
Preferably, the sectional shape of described the first flange collar and described the first groove is trapezoidal or rectangle or semicircle, and the sectional shape of described the second flange collar and described the second groove is trapezoidal or rectangle or semicircle.
The utility model also provides the sealing configuration of a kind of transmission end cap and inner oil seal connecting part, described sealing configuration comprises: be arranged on the 3rd flange collar on inner oil seal and be arranged on the 3rd groove that driving end covers, described the 3rd flange collar stretches in described the 3rd groove and realizes sealing engagement.
The beneficial effects of the utility model are:
Sealing configuration of the present utility model adopts the labyrinth structure of flange collar and groove fit, flange collar is deep in groove, boss and groove coincide, make the junction point sealing effect of transmission end cap and inner oil seal better, solved technical problem poorly sealed, easy leakage of oil, made that the sealing construction cost is low and reliability is high.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to the accompanying drawing that provides other accompanying drawing.
Fig. 1 is the cross section structure schematic diagram of the utility model embodiment one sealing configuration;
Fig. 2 is the cross section structure schematic diagram of the utility model embodiment two sealing configurations;
Fig. 3 is the structural representation in the cross section of the utility model embodiment three sealing configurations.
Embodiment
Core of the present utility model is for providing the sealing configuration of a kind of transmission end cap and inner oil seal connecting part, and the labyrinth structure that the sealing structure adopts convex-concave to coordinate has solved technical problem poorly sealed, easy leakage of oil; And the sealing construction cost is low, reliability is high.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment one
The present embodiment provides the sealing configuration of a kind of transmission end cap and inner oil seal connecting part, please refer to Fig. 1, the sealing structure comprises: be arranged on the first flange collar 101 and the first groove 102 that is arranged on inner oil seal 5 on transmission end cap 4, in the time of on transmission end cap 4 being covered the bearing end, the first flange collar 101 stretches in the first groove 102, and the first flange collar 101 realizes sealed bearing housing with coordinating of the first groove 102.
Preferably, the radial dimension of the first flange collar 101 equates with the radial dimension of the first groove 102, because the first flange collar 101 and the first groove 102 are all rings, therefore i.e. the first flange collar 101 and the first groove 102 width diametrically of the radial dimension of the first flange collar 101 and the first groove 102.Like this, the first flange collar 101 width diametrically equates with the first groove 102 width diametrically, and after installation, the first flange collar 101 just in time extend in the first groove 102, the first flange collar 101 and the first groove 102 are combined closely diametrically, realize the sealing of bearing chamber.
The axial dimension of the first flange collar 101 is less than the axial dimension of the first groove 102, also be provided with the first seal washer 103 between the first flange collar 101 and the first groove 102, and the first flange collar 101 at axial dimension and the first groove 102 at the difference of the axial dimension thickness less than this first seal washer 103.Like this, be provided with the first seal washer 103 between the first flange collar 101 and the first groove 102, after installation, the first flange collar 101 and the first groove 102 be the first seal washer 103 extrusion-deformations, makes the sealing effect of sealing structure better, sealability is more reliable.More preferably, the first seal washer 103 is attached on the first flange collar 101 end faces, like this, and more convenient installation and removal.
The sectional shape of the first flange collar 101 and the first groove 102 is rectangle, and the first flange collar 101 is consistent with the sectional shape of the first groove 102, and is only unequal at axial height.As other mode of executions, the sectional shape of the first flange collar 101 and the first groove 102 can be for trapezoidal or semicircle.
Embodiment two
The present embodiment provides the sealing configuration of a kind of transmission end cap and inner oil seal connecting part, please refer to Fig. 2, the sealing structure comprises: be arranged on the 3rd flange collar 301 and the 3rd groove 302 that is arranged on transmission end cap 4 on inner oil seal 5, in the time of on transmission end cap 4 being covered the bearing end, the 3rd flange collar 301 stretches in the 3rd groove 302, and the 3rd flange collar 301 realizes sealed bearing housing with coordinating of the 3rd groove 302.
Preferably, the radial dimension of the 3rd flange collar 301 equates with the radial dimension of the 3rd groove 302, because the 3rd flange collar 301 and the 3rd groove 302 are all rings, therefore i.e. the 3rd flange collar 301 and the 3rd groove 302 width diametrically of the radial dimension of the 3rd flange collar 301 and the 3rd groove 302.Like this, the 3rd flange collar 301 width diametrically equates with the 3rd groove 302 width diametrically, and the 3rd flange collar 301 and the 3rd groove 302 are combined closely diametrically.
The axial dimension of the 3rd flange collar 301 is less than the axial dimension of the 3rd groove 302, also be provided with the 3rd seal washer 303 between the 3rd flange collar 301 and the 3rd groove 302, and the 3rd flange collar 301 at axial dimension and the 3rd groove 302 at the difference of the axial dimension thickness less than the 3rd seal washer 303.Like this, be provided with the 3rd seal washer 303, the three flange collars 301 and the 3rd groove 302 with the 3rd seal washer 303 extrusion-deformations between the 3rd flange collar 301 and the 3rd groove 302, make the sealing effect of sealing structure better, sealability is more reliable.
The sectional shape of the 3rd flange collar 301 and the 3rd groove 302 is rectangle, and the 3rd flange collar 301 is consistent with the sectional shape of the 3rd groove 302, is all in axial height unequal.As other mode of executions, the sectional shape of the 3rd flange collar 301 and the 3rd groove 302 can be for trapezoidal or semicircle.
Embodiment three
The present embodiment provides the sealing configuration of a kind of transmission end cap and inner oil seal connecting part, please refer to Fig. 3, the sealing structure comprises: be arranged on the first flange collar 101 and the first groove 102 that is arranged on inner oil seal 5 on transmission end cap 4, in the time of on transmission end cap 4 being covered the bearing end, the first flange collar 101 stretches into a sealing pair of the first interior composition bearing chamber of groove 102; The sealing structure also comprises: be arranged on the second flange collar 201 and the second groove groove 202 that is arranged on transmission end cap 4 on inner oil seal 5, in the time of on transmission end cap 4 being covered the bearing end, the second flange collar 201 stretches into another sealing pair of the second interior composition bearing chamber of groove 202.Like this, the sealing structure is made of two staggered sealing pairs, makes sealing effect and sealing reliability all greatly improve.
Preferably, the radial dimension of the second flange collar 201 equates with the radial dimension of the second groove 202, because the second flange collar 201 and the second groove 202 are all rings, therefore i.e. the second flange collar 201 and the second groove 202 width diametrically of the radial dimension of the second flange collar 201 and the second groove 202.Like this, the second flange collar 201 width diametrically equates with the second groove 202 width diametrically, and the second flange collar 201 and the second groove 202 are combined closely diametrically.
The axial dimension of the second flange collar 201 is less than the axial dimension of the second groove 202, also be provided with the second seal washer 203 between the second flange collar 201 and the second groove 202, and the second flange collar 201 at axial dimension and the second groove 202 at the difference of the axial dimension thickness less than this second seal washer 203.Like this, be provided with the second seal washer 203, the second flange collars 201 and the second groove 202 with the second seal washer 203 extrusion-deformations between the second flange collar 201 and the second groove 202, make the sealing effect of sealing structure better, sealability is more reliable.
The sectional shape of the second flange collar 201 and the second groove 202 is rectangle, and the second flange collar 201 is consistent with the sectional shape of the second groove 202, is all in axial height unequal.As other mode of executions, the sectional shape of the second flange collar 201 and the second groove 202 can be for trapezoidal or semicircle.
Above sealing configuration to a kind of transmission end cap provided by the utility model and inner oil seal connecting part is described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (7)
1. the sealing configuration of a transmission end cap and inner oil seal connecting part, it is characterized in that, described sealing configuration comprises: be arranged on the first flange collar (101) on transmission end cap (4) and be arranged on the first groove (102) on inner oil seal (5), described the first flange collar (101) stretches in described the first groove (102) and realizes sealing engagement.
2. sealing configuration according to claim 1, it is characterized in that, described sealing configuration also is provided with the second groove (202) on transmission end cap (4), be provided with the second flange collar (201) on inner oil seal (5), described the second flange collar (201) stretches in described the second groove (202) and realizes sealing engagement.
3. sealing configuration according to claim 2, is characterized in that, the radial dimension of described the first flange collar (101) and described the second flange collar (201) equates with the radial dimension of described the first groove (102) and described the second groove (202) respectively.
4. sealing configuration according to claim 2, it is characterized in that, the axial dimension of described the first flange collar (101) and described the second flange collar (201) is respectively less than the axial dimension of described the first groove (102) and described the second groove (202), be provided with the first seal washer (103) between described the first flange collar (101) and described the first groove (102), be provided with the second seal washer (203) between described the second flange collar (201) and described the second groove (202).
5. sealing configuration according to claim 4, is characterized in that, described the first seal washer (103) and the second seal washer (203) are attached on respectively on the end face of described the first flange collar (101) and described the second flange collar (201).
6. sealing configuration according to claim 2, it is characterized in that, the sectional shape of described the first flange collar (101) and described the first groove (102) is trapezoidal or rectangle or semicircle, and the sectional shape of described the second flange collar (201) and described the second groove (202) is trapezoidal or rectangle or semicircle.
7. the sealing configuration of a transmission end cap and inner oil seal connecting part, it is characterized in that, described sealing configuration comprises: be arranged on the 3rd flange collar (301) on inner oil seal (5) and be arranged on the 3rd groove (302) on transmission end cap (4), described the 3rd flange collar (301) stretches in described the 3rd groove (302) and realizes sealing engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729032 CN202991878U (en) | 2012-12-26 | 2012-12-26 | Sealing structure of combined part of transmission end cover and inner oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729032 CN202991878U (en) | 2012-12-26 | 2012-12-26 | Sealing structure of combined part of transmission end cover and inner oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991878U true CN202991878U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220729032 Expired - Lifetime CN202991878U (en) | 2012-12-26 | 2012-12-26 | Sealing structure of combined part of transmission end cover and inner oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439014A (en) * | 2016-08-31 | 2017-02-22 | 无锡太昌精密机械有限公司 | Connection structure for motor cover and motor base |
-
2012
- 2012-12-26 CN CN 201220729032 patent/CN202991878U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439014A (en) * | 2016-08-31 | 2017-02-22 | 无锡太昌精密机械有限公司 | Connection structure for motor cover and motor base |
| CN106439014B (en) * | 2016-08-31 | 2018-07-03 | 无锡太昌精密机械有限公司 | The connection structure of motor cover and motor base |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |