CN203604602U - Differential gear - Google Patents
Differential gear Download PDFInfo
- Publication number
- CN203604602U CN203604602U CN201320778122.4U CN201320778122U CN203604602U CN 203604602 U CN203604602 U CN 203604602U CN 201320778122 U CN201320778122 U CN 201320778122U CN 203604602 U CN203604602 U CN 203604602U
- Authority
- CN
- China
- Prior art keywords
- gear
- side gear
- lubrication management
- oil
- differential
- 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 - Lifetime
Links
- 239000003921 oil Substances 0.000 claims abstract description 41
- 239000010687 lubricating oil Substances 0.000 claims abstract description 11
- 238000005461 lubrication Methods 0.000 claims description 31
- 230000001050 lubricating effect Effects 0.000 abstract description 10
- 239000000314 lubricant Substances 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Abstract
The utility model provides a differential gear. The differential gear (100) comprises a differential shell (10), a pinion shaft (12), a pinion (13), a pair of side gears (11) and a lubricating pipe (15), wherein the pinion shaft (12) is arranged in the differential shell (10) and arranged in the direction (Y direction) orthorhombic with the axial direction (X direction) of the differential shell (10), the pinion (13) is arranged around the pinion shaft (12) in a rotating mode, the pair of side gears (11) are meshed with the pinion (13), the lubricating pipe (15) can provide lubricating oil, and an oil supplying hole (15e) for directly supplying the lubricating oil to the side gears (11) is formed in the lubricating pipe (15). By means of the structure of the differential gear, due to the fact that the lubricating oil is directly supplied to the side gears (11), lubricating efficiency can be improved.
Description
Technical field
The utility model relates to a kind of differential mechanism.
Background technique
In the past, in the mission case of the automatic transmission of installing in automobile, be assembled with for the differential mechanism (differential mechanism) to wheel by the transmission of power of motor.
Differential mechanism possesses the differential casing that gear ring is installed.Two ends at differential casing are provided with bearing portion, on two bearing portions, are being rotatably mounted respectively side gear.
In addition, in differential casing, be provided with along the pinion shaft extending with the orthogonal direction of the axle direction (center line) of side gear.On pinion shaft, be rotatably mounted with a pair of small gear.This pair of small gear is meshed with a pair of side gear.
In such differential mechanism, by oil pump etc., side gear, small gear etc. are needed to lubricated position (lubricant housings) supplying lubricating oil.
And in differential mechanism, in order to reduce fuel cost etc., the discharge capacity that reduces as much as possible oil pump reduces energy loss.But the discharge capacity of oil pump reduces lubricating efficiency and can reduce.If improve lubricating efficiency, as long as increase lubricant housings or lubricants capacity (discharge capacity of oil pump), but can make so again energy loss increase increases such as () fuel costs.
Model utility content
In order to solve the problems of the technologies described above, the purpose of this utility model is, provides one can suppress energy loss increase, can improve again the differential mechanism of lubricating efficiency.
As the technological scheme solving the problems of the technologies described above, the utility model provides a kind of differential mechanism, this differential mechanism comprises, the pinion shaft that arranges in differential casing, described differential casing, be installed in rotation on small gear, side gear engage with described small gear on described pinion shaft and be lubricated the lubrication management of oil supply, it is characterized in that: described lubrication management is provided with for the direct oil supply hole to described side gear or described small gear supplying lubricating oil.
The advantage with the differential mechanism of the present utility model of said structure is, because the oil supply hole arranging from lubrication management is directly to side gear supplying lubricating oil, in the time that side gear rotates, lubricant oil disperses towards periphery, so, just can not only side gear be lubricated but also other contacting part was lubricated with a small amount of lubricant oil.Thereby can suppress energy loss increases, and can improve again lubricating efficiency.In addition, the oil supply hole arranging from lubrication management directly, in the situation of small gear supplying lubricating oil, also can obtain identical effect.
At this, above-mentioned other contacting part refers to, the contacting part between contacting part and small gear and differential casing between contacting part, side gear and differential casing between engaging piece, small gear and pinion shaft between side gear and small gear etc.
In addition, in above-mentioned differential mechanism of the present utility model, be preferably, the oil supply hole of described lubrication management is arranged on, the side of this lubrication management, with described side gear or described small gear in opposite directions and right position.Adopt this structure, the lubricant oil of supplying with from lubrication management can be fed into side gear or small gear exactly with shorter distance.
In addition, in above-mentioned differential mechanism of the present utility model, can be also that described lubrication management comprises the pipe portion of extending along the direction parallel with the center line of described side gear, the oil supply hole of described lubrication management is arranged on, in the pipe portion of extending along the direction parallel with the center line of described side gear.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that represents the main structure of differential mechanism of the present utility model.
Embodiment
Below, with reference to accompanying drawing, embodiment of the present utility model is described.
The differential mechanism 100 of present embodiment as shown in Figure 1, possesses in differential casing 10, a pair of side gear 11(Fig. 1 a side gear 11 is only shown), pinion shaft 12, a pair of small gear 13, gear ring 14 and lubrication management 15.
A pair of side gear 11, pinion shaft 12 and a pair of small gear 13 are configured in differential casing 10.Gear ring 14 is installed in outside differential casing 10.Lubrication management 15 is supplied to lubricant oil in differential casing 10.
On differential casing 10, be formed with opening portion 10c.By this opening portion 10c, side gear 11, pinion shaft 12 and small gear 13 etc. open wide to the outside of differential casing 10.
A pair of side gear 11 is bevel gears, and both arranged coaxial.The axial region 11a of a pair of side gear 11 is chimeric with not shown output shaft (axle being connected with live axle) spline respectively.
The outside (top of opening portion 10c) of differential casing 10 disposes and is lubricated the lubrication management 15 that oil is supplied with.Lubrication management 15 comprises the 1st 15a of pipe portion, the 2nd 15b of pipe portion, the 3rd 15c of pipe portion and the 4th 15d of pipe portion.The 1st 15a of pipe portion extends along axial (Y-direction) of pinion shaft 12.The 2nd 15b of pipe portion connects with the 1st 15a of pipe portion and extends along axial (direction parallel with the center line of side gear 11, the i.e. directions X) of differential casing 10.The 3rd 15c of pipe portion is connected with the 2nd 15b of pipe portion and extends along axial (Y-direction) of pinion shaft 12.The 4th 15d of pipe portion is connected with the 3rd 15c of pipe portion and extends along axial (directions X) of differential casing 10.
The side of the 2nd 15b of pipe portion of lubrication management 15, on right position, be formed with oil supply hole 15e in opposite directions with side gear 11.Thus, the lubricant oil of supplying with from lubrication management 15 can be fed into side gear 11 exactly with shorter distance.
Connecting not shown oil pump at the 1st 15a of pipe portion of lubrication management 15 or the end of the 4th 15d of pipe portion, oil pump is to lubrication management 15 supplying lubricating oils.Be fed into lubricant oil in lubrication management 15 from oil supply hole 15e the opening portion 10c via differential casing 10, and directly spray (supply) to side gear 11.Thus, side gear 11 is lubricated.
When differential mechanism 100 moves and side gear 11 while rotating, lubricant oil disperses to side gear 11 multiple positions around.Thus, not only side gear 11 is lubricated, and side gear 11 multiple positions around are also lubricated.For example, as the arrow indication in Fig. 1, lubricant oil disperses (diffusion) and that pinion shaft 12, small gear 13, side gear 11 and small gear 13 Nogami are closed to contacting part between contacting part and small gear 13 and the differential casing 10 between contacting part, side gear 11 and the differential casing 10 between portion, small gear 13 and pinion shaft 12 etc. is lubricated.In addition, the lubricant oil above-mentioned multiple positions having been carried out after lubricated is reclaimed by not shown oil tank.
As mentioned above, adopt the structure of present embodiment, can suppress energy loss increases, and can improve again lubricating efficiency.
In the present embodiment, the side of the 2nd 15b of pipe portion having illustrated at lubrication management 15 (with side gear 11 in opposite directions and right position) form the example of oil supply hole 15e, but the utility model is not limited to this, also can the side of lubrication management 15, with small gear 13 in opposite directions and right position forms oil supply hole 15e.In the case, the lubricant oil of supplying with from the oil supply hole 15e of lubrication management 15 is supplied directly onto small gear 13, and when differential mechanism 100 moves and small gear 13 while rotating, lubricant oil is fed into small gear 13 above-mentioned other contacting part around.Therefore, directly to small gear 13 supplying lubricating oil in the situation that, can obtain too above-mentioned effect, that is, can suppress energy loss increases, and can improve again lubricating efficiency.
In addition, in the present embodiment, show the example that forms an oil supply hole 15e on lubrication management 15, but the utility model is not limited to this, can on lubrication management 15, forms the oil supply hole 15e of more than two (multiple).
In addition, in the present embodiment, the example that forms the oil supply hole 15e that is lubricated oil supply in the side of lubrication management 15 has been described, but the utility model is not limited to this, also can form oil supply hole at the front end of lubrication management 15, from this oil supply hole directly to side gear 11 or small gear 13 supplying lubricating oils.
Claims (3)
1. a differential mechanism, comprise differential casing, the interior pinion shaft arranging of described differential casing, be installed in rotation on small gear, the side gear engaging with described small gear on described pinion shaft and be lubricated the lubrication management that oil is supplied with, it is characterized in that:
Described lubrication management is provided with for the direct oil supply hole to described side gear or described small gear supplying lubricating oil.
2. differential mechanism as claimed in claim 1, is characterized in that:
The oil supply hole of described lubrication management is arranged on, the side of this lubrication management, with described side gear or described small gear in opposite directions and right position.
3. differential mechanism as claimed in claim 1 or 2, is characterized in that:
Described lubrication management comprises the pipe portion of extending along the direction parallel with the center line of described side gear,
The oil supply hole of described lubrication management is arranged on, in the pipe portion of extending along the direction parallel with the center line of described side gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778122.4U CN203604602U (en) | 2013-11-29 | 2013-11-29 | Differential gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778122.4U CN203604602U (en) | 2013-11-29 | 2013-11-29 | Differential gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604602U true CN203604602U (en) | 2014-05-21 |
Family
ID=50717276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320778122.4U Expired - Lifetime CN203604602U (en) | 2013-11-29 | 2013-11-29 | Differential gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424731A (en) * | 2017-08-21 | 2019-03-05 | 丰田自动车株式会社 | Power transmission apparatus for vehicle |
-
2013
- 2013-11-29 CN CN201320778122.4U patent/CN203604602U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424731A (en) * | 2017-08-21 | 2019-03-05 | 丰田自动车株式会社 | Power transmission apparatus for vehicle |
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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: 20140521 |