CN2890511Y - Differential sealing device - Google Patents
Differential sealing device Download PDFInfo
- Publication number
- CN2890511Y CN2890511Y CNU2006200801477U CN200620080147U CN2890511Y CN 2890511 Y CN2890511 Y CN 2890511Y CN U2006200801477 U CNU2006200801477 U CN U2006200801477U CN 200620080147 U CN200620080147 U CN 200620080147U CN 2890511 Y CN2890511 Y CN 2890511Y
- Authority
- CN
- China
- Prior art keywords
- differential
- sealing
- differential mechanism
- motorcycle
- differential gear
- 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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Abstract
The utility model discloses a differential sealing device belonging to motorcycle manufacturing field, mainly solving engine oil seepage problem. The technical scheme is that: a differential gear center is a spline hole; one side of a conical tooth is provided with a step hole sealed by plugging; and the other side is directly connected with a spline half shaft. The tail end of the differential gear is longer than the differential housing. The gear external cylindrical surface is directly sealed by oil seal, making the whole differential work in a sealed engine crankshaft box (or a rear axle gearbox). The utility model is compact in structure, small in volume, low in cost, reliable in sealing, suitable for special double output shaft engine or differential velocity rear axle gearbox of three-wheeled motorcycle and four-wheeled motorcycle (i.e. ATV dune motorcycle).
Description
Affiliated field
The utility model belongs to and discloses a kind of differential mechanism sealing technique, is applicable to the special-purpose double output shaft motor or the differential speed rear axle gearbox of motor tricycle and four-wheel motor cycle (being the ATV beach buggy), belongs to motorcycle and makes the field.
Background technique
At present, in the back axle gearbox of three-wheel or four-wheel motor cycle differential mechanism is installed all, but, therefore differential mechanism is sealed, prevent that seepage machine oil from just having become an important topic because gearbox is the environment of a sealing, and inside is equipped with lubricant oil and is lubricated.And most employing of existing sealing technique installed oil sealing additional on semiaxis, and the mode that between gearbox casing and semiaxis connecting tube, seals with rubber asbestos plate, so just the requirement on machining accuracy to component such as semiaxis connecting tube, casing end face, semiaxis is very high, it is bigger to take volume, the also corresponding increase of cost, and bring the insecure shortcoming of sealing.This technology can not satisfy the usage requirement of three-wheel or the integrated motor of the special-purpose double output shaft of four-wheel simultaneously.
Summary of the invention
In order to solve the shortcoming that above-mentioned prior art exists, the purpose of this utility model has provided a kind of motor tricycle and the special-purpose double output shaft motor of four-wheel motor cycle (being the ATV beach buggy) or differential mechanism seal arrangement of differential speed rear axle gearbox of being applicable to.
The technical solution of the utility model is: differential mechanism is installed in crankcase or the gearbox by spring bearing, and the differential gear center is a splined hole, and there is step hole in the hole at the awl flank, shutoff is installed, thereby end face is sealed; Opposite side directly is connected with the spline semiaxis, can driving wheel work.The tail end of differential gear grows differential casing, and oil sealing is installed in the oil sealing hole of crankcase or gearbox, and is coaxial with the differential mechanism differential gear, and the differential gear external cylindrical surface directly contacts with oil sealing, realizes sealing.
The beneficial effects of the utility model are: this kind encapsulation scheme has been simplified overall structure, whole sealing system is achieved between differential gear and crankcase/gearbox, designs simplification, volume reduce, reduced correlated parts simultaneously, requirement on machining accuracy to system reduces, thereby reduced cost, and made sealing more reliable.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the utility model embodiment's a structural representation;
Among the figure: 1 left crankcase or left gearbox casing, 2 differential pinion gears, 3 differential mechanism spring bearings, 4 differential mechanism oil sealings, 5 semiaxis, 6 differential gears, 7 differential casings, the little axle of 8 differential mechanisms, 9 differential casings, 10 differential mechanism bolts, 11 shutoff, 12 right crankcasees or right gearbox casing.
Embodiment
As shown in drawings, the sealing device relates generally to the sealing between engine crankshaft casing or gearbox casing and the speed of the differential in it device, and the sealing two-part between differential mechanism and the semiaxis.
The differential mechanism main body comprises differential casing 7, differential casing 9, differential pinion gear 2, differential gear 6, the little axle 8 of differential mechanism and differential mechanism bolt 10 compositions, and the structural principle of concrete differential mechanism is all identical with existing differential mechanism.
Differential mechanism is connected with left crankcase or left gearbox casing 1, right crankcase or right gearbox casing 12 by the differential mechanism spring bearing 3 that press-fits on housing, and carry out running work, the center of differential gear 6 is a splined hole, semiaxis 5 is a splined shaft, is connected by spline with differential gear 6 and carries out work, and awl tooth one side of differential gear 6 is a step hole, shutoff 11 is installed in the step hole, the material of shutoff 11 can be metal, also can be rubber material, thereby the differential gear end face is sealed.
The tail end of differential gear 6 grows differential casing 7,9 as figure, between the external cylindrical surface of differential gear 6 and engine housing/gearbox casing, differential mechanism oil sealing 4 is installed, between the cylindrical of differential mechanism oil sealing 4 and the engine housing/gearbox casing interference fit and sealing, and inner ring is the lips mouth, and carries out rotary seal between the external cylindrical surface of differential gear 6.
During work, the seal action by differential mechanism oil sealing 4 and shutoff 11 makes between crankcase body/gearbox casing and the differential mechanism and has realized sealing, has prevented the seepage of casing inner engine oil, thereby satisfies the job requirement of motor or back axle.
Claims (1)
1, a kind of differential mechanism seal arrangement, differential mechanism is installed in crankcase or the gearbox by spring bearing, the differential mechanism two ends connect the spline semiaxis, it is characterized in that, differential gear center in the differential mechanism is a splined hole, described splined hole is provided with step hole in awl tooth one side, is provided with the sealing shutoff in the step hole; Opposite side spline semiaxis directly stretches out in outside the differential gear; The tail end of differential gear grows differential casing, is provided with oil sealing between differential gear external cylindrical surface and crankcase body or the gearbox casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200801477U CN2890511Y (en) | 2006-01-13 | 2006-01-13 | Differential sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200801477U CN2890511Y (en) | 2006-01-13 | 2006-01-13 | Differential sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2890511Y true CN2890511Y (en) | 2007-04-18 |
Family
ID=38021174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200801477U Expired - Fee Related CN2890511Y (en) | 2006-01-13 | 2006-01-13 | Differential sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2890511Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886694A (en) * | 2010-05-07 | 2010-11-17 | 许晓华 | Rear axle differential gear of motor vehicle |
| CN103821936A (en) * | 2012-11-17 | 2014-05-28 | 江苏华阳重工股份有限公司 | Sediment control device assorted with ship water-lubrication sealing device |
| CN105443720A (en) * | 2015-12-17 | 2016-03-30 | 长安大学 | Limited slip differential (LSD) shell body of formula of society of automotive engineers (FSAE) racing car transmission system |
-
2006
- 2006-01-13 CN CNU2006200801477U patent/CN2890511Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886694A (en) * | 2010-05-07 | 2010-11-17 | 许晓华 | Rear axle differential gear of motor vehicle |
| CN103821936A (en) * | 2012-11-17 | 2014-05-28 | 江苏华阳重工股份有限公司 | Sediment control device assorted with ship water-lubrication sealing device |
| CN105443720A (en) * | 2015-12-17 | 2016-03-30 | 长安大学 | Limited slip differential (LSD) shell body of formula of society of automotive engineers (FSAE) racing car transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |