CN206785932U - Minicar main gearbox assembly - Google Patents
Minicar main gearbox assembly Download PDFInfo
- Publication number
- CN206785932U CN206785932U CN201720381125.2U CN201720381125U CN206785932U CN 206785932 U CN206785932 U CN 206785932U CN 201720381125 U CN201720381125 U CN 201720381125U CN 206785932 U CN206785932 U CN 206785932U
- Authority
- CN
- China
- Prior art keywords
- driving gear
- sealing shroud
- oil seal
- main gearbox
- gearbox assembly
- 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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- General Details Of Gearings (AREA)
Abstract
Minicar main gearbox assembly, including main gearbox assembly are the utility model is related to, is provided with driving gear in main gearbox assembly, driving gear is positioned by taper roll bearing, and driving gear is sealed by oil seal assembly；Return tray is provided between oil seal assembly and taper roll bearing, return tray is pressed on driving gear periphery by oil seal assembly, and the return tray is made up of internal metallic framework and the nitrile rubber main body being covered in outside metallic framework.The utility model realizes oil-leakage-prevention effect on the premise of can not changing existing component structural size, and gear oil seal is realized by return tray reasonable in design, it can be used in existing product structure, reduce the cost and process for changing existing component structural, it is practical.
Description
Technical field
Minicar part is the utility model is related to, belongs to field of vehicle equipment, more specifically, the utility model is related to one
Kind minicar main gearbox assembly.
Background technology
The mechanism that main reducing gear (final reduction dr ive) can change torque and rotating speed in drive axle,
It is to increase the torque from speed changer or universal driving device that its basic training, which is used, while reduces rotating speed and change the biography of torque
Pass direction；Main reducing gear by a pair or it is several speed reducing gear pair is formed, power is inputted by driving gear and exported through driven gear.
In minicar field, normal miniature car owner's deceleration assembly is only assembled with an oil seal assembly in driving gear end and made
To seal the vital part of gear oil, during vehicle runs at high speed, if the breather plug exhaust on rear axle housing is not smooth, cause
Main deceleration cavity pressure is excessive, and gear oil extrudes easily at driving tooth oil sealing, so as to cause oil leakage phenomenon.
It is public in Application No. " 201320058447.5 ", entitled " the driving gear oil return dish structure of speed reducer assembly "
Opened a kind of driving gear oil return disc mechanism of speed reducer assembly, the oil return disc mechanism overcoat on driving gear, its solve
Technical problem is a simplified structure, improves operating efficiency.But return tray concrete structure is not disclosed in this application, from accompanying drawing
In also can not learn or rationally derive, and return tray role does not refer to whether preventing oil leak yet in this application
Effect, its install when be also to be set on driving gear, when for Leakage, can not effectively be believed from this application
Breath, also can not directly solve Leakage using the return tray of prior art and with reference to this application technical scheme, and use
When reducer shell structure need to adjust, corresponding assembling is also complex, it is necessary to change more component structural and size,
Many problems are brought to technology.
Utility model content
Based on above technical problem, the utility model provides a kind of minicar main gearbox assembly, so as to solve with
Toward main reducing gear easily oil leak, and prevent oil leak for realization and component structural size need to be changed, cause assembling complicated and into
This increased technical problem.
To solve above technical problem, the technical solution adopted in the utility model is as follows：
Minicar main gearbox assembly, including main gearbox assembly, driving gear is provided with main gearbox assembly, actively
Gear is positioned by taper roll bearing, and the driving gear is sealed by oil seal assembly；
Return tray is provided between the oil seal assembly and taper roll bearing, return tray is pressed on master by oil seal assembly
Moving gear periphery, the return tray are made up of internal metallic framework and the nitrile rubber main body being covered in outside metallic framework；
The nitrile rubber main body includes the sealing shroud being bonded with driving gear axle journal, and sealing shroud inner surface setting has oil sealing
Lip, the sealing shroud lower end extend to form extension to inclined upward on the outside of sealing shroud, formed between extension and sealing shroud
Oil trap, the end horizontal of the extension are bent to form compressed part；The metallic framework is located at sealing shroud outer surface lower end simultaneously
Compressed part is extended to along extension.
Preferably, the height of the compressed part is higher than 2~3 millimeters of sealing shroud.
Preferably, the sealing shroud, extension and compressed part surface are coated with alundum (Al2O3) wearing layer.
Compared with prior art, the beneficial effects of the utility model are：The utility model is simple in construction, can not change existing
Oil-leakage-prevention effect is realized on the premise of having component structural size, and realizes that gear oil is close by return tray reasonable in design
Envelope, its is simple in construction, and assembling is relatively simple, can be used in existing product structure, reduces the existing component structural of change
Cost and process, it is practical.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model return tray；
Label in figure is expressed as：1st, driving gear bead assembly；2nd, taper roll bearing；3rd, driving gear；4、
Main gearbox assembly；5th, oil seal assembly；6th, return tray；7th, metallic framework；8th, nitrile rubber main body；9th, sealing shroud；10th, oil-collecting
Groove；11st, compressed part；12nd, extension；13rd, oil seal lip.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.Embodiment of the present utility model includes but unlimited
In the following example.
Embodiment 1
As shown in Figure 1 and Figure 2, minicar main gearbox assembly, including main gearbox assembly 4, set on main gearbox assembly 4
Driving gear 3 is equipped with, driving gear 3 is positioned by taper roll bearing 2, and the driving gear 3 is sealed by oil seal assembly 5；
Return tray 6 is provided between the oil seal assembly 5 and taper roll bearing 2, return tray 6 is pressed by oil seal assembly 5
Tightly in the axle journal periphery of driving gear 3, the return tray 6 is by internal metallic framework 7 and the butyronitrile being covered in outside metallic framework 7
Body of rubber 8 forms.
The nitrile rubber main body 8 includes the sealing shroud 9 being bonded with the axle journal of driving gear 3, and the inner surface setting of sealing shroud 9 has
Oil seal lip 13, the lower end of sealing shroud 9 extend to form extension 12 to the outside inclined upward of sealing shroud 9, extension 12 with it is close
Oil trap 10 is formed between big envelope 9, the end horizontal of the extension 12 is bent to form compressed part 11；The metallic framework 7
In the outer surface lower end of sealing shroud 9 and extend to compressed part 11 along extension 12.
The driving gear bead assembly 1 of the present embodiment coordinates to be passed through outside the upper end of main gearbox assembly 4, driving gear 3
Oil seal assembly 5 seals gear oil, and return tray 6 compresses compressed part 11 by oil seal assembly 5, and the entirety of return tray 6 is pressed on into master subtracts
In fast device assembly 4, and the inner surface of sealing shroud 9 is brought into close contact the axle journal periphery of driving gear 3 after compaction, when main reducing gear is total
When breather plug into 4 rear axle housing blocks or exhaust is not smooth, main deceleration cavity pressure is excessive and extrudes return tray 6, and return tray 6 exists
The lower return tray 6 of the support of metallic framework 7 will not excessive deformation, so as to which gear oil will not be extruded, while in main deceleration cavity pressure mistake
The thrust with driving gear 3 can be increased when big after the micro-deformation of sealing shroud 9, so as to increase contact surface, it is possible to reduce oil return
Disk 6 and the gap of power transmission shaft 3, so as to play sealing effectiveness, avoid gear oil from revealing.
Nitrile rubber oil resistivity and heat resistance are fabulous, and wearability is higher, so as to which nitrile rubber main body 8 has chemistry well
Performance, it can use for a long time.
The present embodiment can be coordinated with oil seal assembly 5 by the structure of return tray 6 of design and realize gear oil seal, be ensured
It is obstructed or seal gear oil when blocking in breather plug, structure and assemble relatively simple, and the structure can be with former main deceleration
Device assembly 4 coordinates assembling, realizes oil-leakage-prevention effect on the premise of can not changing existing component structural size, reduces change
The cost and process of existing component structural, it is practical.
On this basis, the height of the compressed part 11 is higher than 9 2~3 millimeters of sealing shroud.The height of compressed part 11 is higher than
Sealing shroud 9, then connected between oil trap 10 and power transmission shaft so that gear oil directly can contact to be formed with the surface of driving gear 3
Oil film, it is possible to increase sealing effectiveness, and the height of compressed part 11 is higher than 9 2~3 millimeters of sealing shroud, then can ensure the close of sealing shroud 9
Envelope effect simultaneously connects oil trap 10 and power transmission shaft, and gear oil also will not excessively connect with driving gear 3 and the bound fraction of sealing shroud 9
Touch, reduce gear oil consumption.
On this basis, the sealing shroud 9, extension 12 and the surface of compressed part 11 are coated with alundum (Al2O3) wearing layer.
Alundum (Al2O3) wearing layer tool has good wearability, and has some strength, may also provide while service life is ensured
Its bearing strength, improve above-mentioned part service life.
It is embodiment of the present utility model as described above.Design parameter in above-described embodiment and embodiment be only for
The utility model verification process of clear statement utility model people, and be not used to limit scope of patent protection of the present utility model,
Scope of patent protection of the present utility model is still defined by its claims, every with specification of the present utility model and attached
The equivalent structure change that figure content is made, similarly should be included in the scope of protection of the utility model.
Claims (3)
1. minicar main gearbox assembly, including main gearbox assembly (4), main gearbox assembly (4) is interior to be provided with driving gear
(3), driving gear (3) is positioned by taper roll bearing (2), and the driving gear (3) is sealed by oil seal assembly (5)；Its
It is characterised by：
Return tray (6) is provided between the oil seal assembly (5) and taper roll bearing (2), return tray (6) passes through oil seal assembly
(5) driving gear (3) axle journal periphery is pressed on, the return tray (6) is by internal metallic framework (7) and is covered in metallic framework
(7) outside nitrile rubber main body (8) composition；
The nitrile rubber main body (8) includes the sealing shroud (9) being bonded with driving gear (3) axle journal, and sealing shroud (9) inner surface is set
Oil seal lip (13) is equipped with, sealing shroud (9) lower end extends to form extension (12) to inclined upward on the outside of sealing shroud (9),
Oil trap (10) is formed between extension (12) and sealing shroud (9), the end horizontal of the extension (12) is bent to form compression
Portion (11)；The metallic framework (7) is located at sealing shroud (9) outer surface lower end and extends to compressed part (11) along extension (12).
2. minicar main gearbox assembly according to claim 1, it is characterised in that：The height of the compressed part (11) is high
In (9) 2~3 millimeters of sealing shroud.
3. minicar main gearbox assembly according to claim 1, it is characterised in that：The sealing shroud (9), extension
(12) and compressed part (11) surface is coated with alundum (Al2O3) wearing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381125.2U CN206785932U (en) | 2017-04-12 | 2017-04-12 | Minicar main gearbox assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381125.2U CN206785932U (en) | 2017-04-12 | 2017-04-12 | Minicar main gearbox assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785932U true CN206785932U (en) | 2017-12-22 |
Family
ID=60707497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720381125.2U Expired - Fee Related CN206785932U (en) | 2017-04-12 | 2017-04-12 | Minicar main gearbox assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206785932U (en) |
-
2017
- 2017-04-12 CN CN201720381125.2U patent/CN206785932U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190911 Address after: 611830 No. 11 Taixing Avenue, Dujiangyan Economic Development Zone, Chengdu City, Sichuan Province Patentee after: Cowes special vehicle bridge in Chengdu manufactures Co., Ltd Address before: 611830 No. 11 Taixing Avenue, Dujiangyan Economic Development Zone, Chengdu City, Sichuan Province Patentee before: Sichuan Dujiang Machinery Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20200412 |