CN203335865U - Sealing structure for oil seal installation hole of motorcycle engine casing - Google Patents
Sealing structure for oil seal installation hole of motorcycle engine casing Download PDFInfo
- Publication number
- CN203335865U CN203335865U CN2013203369659U CN201320336965U CN203335865U CN 203335865 U CN203335865 U CN 203335865U CN 2013203369659 U CN2013203369659 U CN 2013203369659U CN 201320336965 U CN201320336965 U CN 201320336965U CN 203335865 U CN203335865 U CN 203335865U
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- China
- Prior art keywords
- oil seal
- mounting hole
- seal mounting
- groove
- rubber oil
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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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Abstract
The utility model discloses a sealing structure for an oil seal installation hole of a motorcycle engine casing. The sealing structure comprises the oil seal installation hole formed in the engine casing and a rubber oil seal. The section, at the outer side end of the engine casing, of the oil seal installation hole is an oil seal compression section, and the diameter of the oil seal compression section is smaller than the outer diameter of the rubber oil seal. A receding groove is formed in the section, at the inner side end of the engine casing, of the oil seal installation hole, and the diameter of the receding groove is larger than the outer diameter of the rubber oil seal. The rubber oil seal is inserted into the oil seal installation hole from the outer side of the engine casing. The portion, corresponding to the oil seal compression section, of the rubber oil seal forms elastic hole shrinkage and is in fit with the hole wall. The portion, corresponding to the receding groove, of the rubber oil seal forms elastic hole enlargement to form a stopping flange, and the diameter of the stopping flange is larger than that of the oil seal compression section. The sealing structure can axially locate the oil seal, can prevent the oil seal from popping out of the oil seal installation hole, can prevent lubricating oil from leaking and can guarantee operation safety of an engine.
Description
Technical field
The utility model relates to the motorcycle engine field, particularly relates to a kind of sealing configuration of Motorcycle Engine Shell seal mounting hole.
Background technique
The seal mounting hole that existing Motorcycle Engine Shell is provided with is generally the straight hole that vertical diameter does not change, rubber oil sea is arranged in seal mounting hole and only is subject to pressure radially, the frictional force axial restraint produced by radial pressure, due to oil sealing Long contact time lubricant oil, friction factor is too low, and this frictional force is difficult to guarantee that rubber oil sea do not go out seal mounting hole.In addition, if when the tolerance of seal mounting hole and oil sealing is larger, oil sealing is more easily gone out seal mounting hole, causes oil leak, and then, due to the lubricant oil deficiency, damages motor.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, a kind of sealing configuration of Motorcycle Engine Shell seal mounting hole is provided, and this sealing configuration energy axially locating oil sealing, prevent that oil sealing from going out seal mounting hole, and oil leak, the security of operation of assurance motor.
The purpose of this utility model is achieved in that
A kind of sealing configuration of Motorcycle Engine Shell seal mounting hole, comprise the seal mounting hole arranged on motor body, and rubber oil sea, described seal mounting hole is positioned at one section of the motor body outboard end and is less than the oil sealing compressing section of rubber oil sea external diameter for diameter, seal mounting hole is positioned at a section of motor body medial extremity and is provided with the groove of stepping down that diameter is greater than the rubber oil sea external diameter, described rubber oil sea inserts seal mounting hole from the motor body outside, the part of the corresponding oil sealing of rubber oil sea compressing section forms elasticity undergauge and hole wall laminating, the step down part of groove of rubber oil sea correspondence forms the elasticity hole enlargement and is configured as the retaining flange that diameter is greater than the oil sealing compressing section.
The axial length of the described groove of stepping down is less than the axial length of oil sealing compressing section.
The quantity of the described groove of stepping down is at least two, and the groove of stepping down forms and is interrupted dentation on the inwall of seal mounting hole.
The described groove of stepping down is one, and this steps down groove ringwise.
Owing to having adopted such scheme, this sealing configuration comprises seal mounting hole and the rubber oil sea arranged on motor body, seal mounting hole is positioned at one section of the motor body outboard end and is less than the oil sealing compressing section of rubber oil sea external diameter for diameter, make rubber oil sea insert seal mounting hole from the motor body outside, the part of the corresponding oil sealing of rubber oil sea compressing section forms elasticity undergauge and hole wall laminating, rubber oil sea is subject in pressure oil seal installation hole radially forming the sealing between rubber oil sea and seal mounting hole, seal mounting hole is positioned at a section of motor body medial extremity and is provided with the groove of stepping down that diameter is greater than the rubber oil sea external diameter, the step down part of groove of rubber oil sea correspondence forms the elasticity hole enlargement and is configured as the retaining flange that diameter is greater than the oil sealing compressing section, thereby axially locating.Rubber oil sea in this sealing configuration not only is subject to radial pressure, also is subject to axially locating, can prevent that oil sealing from going out seal mounting hole, prevents oil leak, guarantees the security of operation of motor.
The axial length of groove of stepping down is less than the axial length of oil sealing compressing section, to guarantee the area of contact of rubber oil sea and seal mounting hole, and then the radial location of assurance rubber oil sea.
The quantity of groove of stepping down is at least two, a plurality of grooves of stepping down form and are interrupted dentation on the inwall of seal mounting hole, can form to the rubber oil sea after packing into circumferential location, prevent that rubber oil sea from rotating, avoid producing with seal mounting hole and rub, increase the working life of rubber oil sea.
The utility model is by the seal mounting hole of said structure canned motor housing, the step down part of groove of rubber oil sea correspondence forms the elasticity hole enlargement and is configured as the retaining flange that diameter is greater than the oil sealing compressing section, the axially locating oil sealing, prevent that oil sealing from going out seal mounting hole, and oil leak, the security of operation of assurance motor.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
The structural representation that Fig. 2 is seal mounting hole;
Schematic diagram is looked on the right side that Fig. 3 is Fig. 2.
In accompanying drawing, 1 is motor body, and 2 is seal mounting hole, and 21 is the oil sealing compressing section, and 22 is the groove of stepping down, and 3 is rubber oil sea.
Embodiment
Referring to Fig. 1～Fig. 3, a kind of embodiment for the sealing configuration of Motorcycle Engine Shell seal mounting hole, this sealing configuration comprises the seal mounting hole 2 arranged on motor body 1, and rubber oil sea 3, described seal mounting hole 2 is positioned at one section of motor body 1 outboard end and is less than the oil sealing compressing section 21 of rubber oil sea 3 external diameters for diameter, when being positioned at the oil sealing compressing section, the rubber oil sea so that pack in seal mounting hole produces resiliently deformable, seal mounting hole 2 is positioned at one section of motor body 1 medial extremity and is greater than the groove 22 of stepping down of rubber oil sea external diameter for diameter, rubber oil sea so that pack in seal mounting hole is positioned at the groove of stepping down to be made, elastic strain disappears, recover original diameter.Further, described axial length of stepping down groove 22 is less than the axial length of oil sealing compressing section 21, to guarantee the area of contact of rubber oil sea and seal mounting hole, and then guarantees the radial location of rubber oil sea.Further, the quantity of the described groove of stepping down is at least two, the groove of stepping down forms and is interrupted dentation on the inwall of seal mounting hole, in the present embodiment, the quantity of groove of stepping down is four, four grooves of stepping down are evenly distributed on the inwall of seal mounting hole, four step down groove and four obstruct sections formation interruption dentations of stepping down between groove.
Described rubber oil sea 3 inserts seal mounting hole 2 from motor body 1 outside, the part of the corresponding oil sealing of rubber oil sea 3 compressing section 21 forms elasticity undergauge and hole wall laminating, the step down part of groove 22 of rubber oil sea 3 correspondences forms the elasticity hole enlargement and is configured as the retaining flange that diameter is greater than oil sealing compressing section 21, thereby the axially locating rubber oil sea, step down groove and the circumferential fixing rubber oil sea of the obstruct section of stepping down between groove.
Also need to comprise the multidiameter shaft of installing in seal mounting hole, the axle journal of multidiameter shaft is positioned at seal mounting hole, the shaft shoulder of multidiameter shaft is positioned at the madial wall side of motor body, described rubber oil sea is installed between the hole wall of the axle journal of multidiameter shaft and seal mounting hole, and the cutting edge section of rubber oil sea fits tightly and forms sealing with the axle journal of multidiameter shaft under the effect of oil sealing inner spring.
The utility model not only is confined to above-described embodiment, and the described groove 22 of stepping down is one, and this steps down groove ringwise, the step down axially locating better effects if of groove of annular.
The utility model not only is confined to above-described embodiment, in the situation that do not deviate from the technological scheme that the technical solutions of the utility model spirit is carried out a little change, should fall into protection domain of the present utility model.
Claims (4)
1. the sealing configuration of a Motorcycle Engine Shell seal mounting hole, comprise the seal mounting hole arranged on motor body, and rubber oil sea, it is characterized in that: described seal mounting hole is positioned at one section of the motor body outboard end and is less than the oil sealing compressing section of rubber oil sea external diameter for diameter, seal mounting hole is positioned at a section of motor body medial extremity and is provided with the groove of stepping down that diameter is greater than the rubber oil sea external diameter, described rubber oil sea inserts seal mounting hole from the motor body outside, the part of the corresponding oil sealing of rubber oil sea compressing section forms elasticity undergauge and hole wall laminating, the step down part of groove of rubber oil sea correspondence forms the elasticity hole enlargement and is configured as the retaining flange that diameter is greater than the oil sealing compressing section.
2. the sealing configuration of Motorcycle Engine Shell seal mounting hole according to claim 1, it is characterized in that: the axial length of the described groove of stepping down is less than the axial length of oil sealing compressing section.
3. the sealing configuration of Motorcycle Engine Shell seal mounting hole according to claim 1 and 2, it is characterized in that: the quantity of the described groove of stepping down is at least two, and the groove of stepping down forms and is interrupted dentation on the inwall of seal mounting hole.
4. the sealing configuration of Motorcycle Engine Shell seal mounting hole according to claim 1 and 2, it is characterized in that: the described groove of stepping down is one, and this steps down groove ringwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203369659U CN203335865U (en) | 2013-06-13 | 2013-06-13 | Sealing structure for oil seal installation hole of motorcycle engine casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203369659U CN203335865U (en) | 2013-06-13 | 2013-06-13 | Sealing structure for oil seal installation hole of motorcycle engine casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335865U true CN203335865U (en) | 2013-12-11 |
Family
ID=49704541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203369659U Expired - Lifetime CN203335865U (en) | 2013-06-13 | 2013-06-13 | Sealing structure for oil seal installation hole of motorcycle engine casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883734A (en) * | 2014-03-10 | 2014-06-25 | 成都威特电喷有限责任公司 | Cam shaft oil pressure seal end cover |
-
2013
- 2013-06-13 CN CN2013203369659U patent/CN203335865U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883734A (en) * | 2014-03-10 | 2014-06-25 | 成都威特电喷有限责任公司 | Cam shaft oil pressure seal end cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |