CN201953966U - Forced lubrication structure in drive axle - Google Patents
Forced lubrication structure in drive axle Download PDFInfo
- Publication number
- CN201953966U CN201953966U CN2011200066481U CN201120006648U CN201953966U CN 201953966 U CN201953966 U CN 201953966U CN 2011200066481 U CN2011200066481 U CN 2011200066481U CN 201120006648 U CN201120006648 U CN 201120006648U CN 201953966 U CN201953966 U CN 201953966U
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- CN
- China
- Prior art keywords
- input shaft
- oil
- oil outlet
- oil pump
- axle
- 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
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Abstract
The utility model relates to a forced lubrication structure in a drive axle; an input shaft is externally provided with an oil pump; an input shaft is internally provided with an input shaft oil channel; an oil inlet of the input shaft oil channel is connected with an oil outlet of the oil pump; the oil inlet is provided with a spline matched with the oil pump; and the oil outlet of the input shaft oil channel is communicated with the lubrication part of the input shaft, which is matched with a jacket fitting piece. In the utility model, forced lubrication is added, so that lubrication at all matching surfaces can be ensured, the axle is more beneficial to be used in the severe working condition, so that the using application range of the axle is enlarged, the service life of the axle is prolonged.
Description
Technical field
The utility model relates to a kind of jackshaft forced lubrication structure, belongs to technical field of automobile parts.
Background technique
Present domestic ransaxle jackshaft input shaft place is oil loading pumps not all generally, undressed oil duct on the input shaft, undressed on the cross axle have annular groove and an oil duct, and the lubricated of relative movement face such as input shaft outer bearing, input shaft and cylindrical gears inner hole surface, cross axle and planet wheel inner hole surface and input shaft and back differential gear inner hole surface all are by the gear splash lubrication.
When the vehicle road conditions are relatively poor, owing to reasons such as the speed of a motor vehicle is slow, climbings, splash oil mass seldom, lack of lubrication causes the dry grinding between the relative movement part, damages the vehicle bridge inner body and increases the vehicle bridge noise.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, a kind of novel ransaxle jackshaft forced lubrication structure is provided, and it can carry out sufficient lubrication to parts such as axle on the vehicle bridge and interaxial differentials when automobile low speed driving and reversing.
For achieving the above object, the utility model adopts following technical proposals:
A kind of ransaxle jackshaft forced lubrication structure, outside input shaft, be provided with oil pump, be provided with the input shaft oil duct in the input shaft, the filler opening of input shaft oil duct links to each other with oil outlet on the described oil pump, and the oil outlet of input shaft oil duct is communicated with the lubricant housings that input shaft matches with its overcoat counterpart.
Be provided with the input shaft spline that matches with oil pump internal rotor spline on the oil pump on the input shaft at the filler opening place.
Described oil outlet comprise the oil outlet C of the oil outlet B of the oil outlet A of lubricated input shaft outer bearing, lubricated cylindrical gears, lubricated back differential gear and inflow be located on the cross axle the cross axle annular groove and by the oil outlet D of the oil duct on the cross axle by oil outlet E and the lubricated planet wheel of oil outlet F.
" the overcoat counterpart of input shaft " refers to the parts that directly or indirectly match with input shaft, as input shaft outer bearing, cylindrical gears, planet wheel and back differential gear etc., is not limited to this certainly." lubricant housings that matches " refers to axle and goes between axle and its outside counterpart or the position of the rubbing surface between the outside counterpart, and promptly oil outlet leads to the rubbing surface of the two, and can play lubrication to rubbing surface, reduces the abrasion of part.As here with as described in the overcoat counterpart that matches of oil outlet A be the input shaft outer bearing, " lubricant housings that matches " is between input shaft cylndrical surface and the input shaft outer bearing inner hole surface.
Be processed with input shaft oil duct, filler opening in the middle of the described input shaft, and need lubricate the place at each and be processed with oil outlet, be pressed into steel ball in the main oil gallery end or straight pin prevents draining.Can be lining, needle bearing or direct Spielpassung between described cylindrical gears inner hole surface and the input shaft cylndrical surface.Can be Thurst washer, needle roller thrust bearing between described cylindrical gears end face and the input shaft inner hole surface or directly cooperate.Be directly to cooperate or increase the anti-attrition pad between the described input shaft supporting diameter of axle shaft shoulder and the back differential gear shaft shoulder.Can be direct Spielpassung or lining anti-attrition between described cross axle and the input shaft.Does not limit described cross axle oilhole oil outlet position.Can be lining, needle bearing or direct Spielpassung between described differential gear inner hole surface and the input shaft.
The applicant is in patent 200520126146.7, notice of authorization day is on January 17th, 2007, patent name is for providing a kind of gasoline pump in " automotive axle oil pump " and being described in greater detail, this oil pump can carry out sufficient lubrication to parts such as axle on the vehicle bridge and interaxial differentials when automobile low speed driving and reversing, its main structure is: oil pump casing, oil pump cover, the oil pump internal rotor, the oil pump external rotor, oil pump eccentric hoop etc., its mode of action is: when internal rotor rotates, the drive external rotor rotates, form the sealing cavity volume between the inner and outer rotors tooth, along with rotation, the sealing cavity volume becomes the big vacuum that forms at first gradually, this moment, cavity volume was relative with filler opening, form oil-absorbing process, when internal rotor was rotated further, the sealing cavity volume began to diminish, at this moment, the sealing cavity volume is relative with oil outlet, thereby lubricant oil is discharged formation pump oil process from oil outlet.
The utility model increases pressure lubrication, has guaranteed the lubricated of each fitting surface place, makes vehicle bridge more help using under the operating mode harsh conditions, has enlarged the using scope of vehicle bridge, has improved the working life of vehicle bridge.
Description of drawings
Fig. 1 is the utility model assembly structure figure;
Among the figure: 1, input shaft, 2, the input shaft outer bearing, 3, oil pump, 4, the main cap that subtracts, 5, cylindrical gears, 6, planet wheel, 7, cross axle, 8, the back differential gear, 25, cylindrical gears inner hole surface, 26, the planet wheel inner hole surface, 27, the oil pump internal rotor, 29, the oil pump fixing bolt; 32, oil pump lubricating oil inlet.
Fig. 2 is the input shaft structural drawing;
Among the figure: 9, filler opening; 10, oil outlet A; 11, oil outlet B; 12, oil outlet D; 13, oil outlet C; 14, steel ball; 15, input shaft cylndrical surface; 16, the input shaft supporting diameter of axle; 17, the input shaft shaft shoulder; 28, input shaft spline; 31, input shaft oil duct.
Fig. 3 is the cross axle structural drawing;
Among the figure: 18, straight pin; 19, oil outlet E; 20, oil outlet F; 21, the cross axle diameter of axle; 22, cross axle annular groove.
Fig. 4 is a back differential gear structural drawing;
Among the figure: 23, back differential gear inner hole surface; Differential gear hole, 24 back shoulder.
Fig. 5 is oil pump structure figure;
Among the figure: 30, internal rotor spline.
Fig. 6 is oil pump internal rotor and input shaft spline connection diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, a kind of ransaxle jackshaft lubrication system architecture comprises input shaft 1, input shaft outer bearing 2, and oil pump 3, the master subtracts cap 4, cylindrical gears 5, planet wheel 6, cross axle 7, back differential gear 8 etc.
The oil pump that is provided in the China Patent No. 200520126146.7 is provided oil pump 3.
As shown in Figure 1 and Figure 2, be provided with input shaft oil duct 31 in the input shaft 1, the end of input shaft oil duct 31 is pressed into steel ball 14 and prevents draining, oil pump 3 is fixed on main subtracting on the cap 4 by oil pump fixing bolt 29, internal rotor spline 30 on the oil pump internal rotor 27 matches with input shaft spline 28 at input shaft 1, the filler opening 9 of input shaft oil duct 31 links to each other with oil outlet on the described oil pump 3, and input shaft spline 28 is located at filler opening 9 places.As shown in Figure 3, cross axle 7 inboards are processed with cross axle annular groove 22, and are processed with oil duct and lead to cross axle 7 and planet wheel inner hole surface 26, and the end of cross axle internal oil channel is pressed into straight pin 18 and prevents draining.
During automobile running, please refer to Fig. 5, Fig. 6, input shaft 1 rotates, driving oil pump internal rotor 27 rotates, oil pump 3 work, oil pump 3 pumps into lubricant oil 32 suctions from the oil pump lubricating oil inlet in the filler opening 9 of input shaft oil duct 31 then, under the effect of pressure, lubricant oil enters input shaft outer bearing 2 through oil outlet A10 and is lubricated; Process oil outlet B11 enters between input shaft cylndrical surface 15 and the cylindrical gears inner hole surface 25 and is lubricated; Please refer to Fig. 1 and Fig. 3, the cross axle annular groove 22, the process oil outlet E19 that flow into ten peace axles 7 through oil outlet D12 enter planet wheel inner hole surface 26 and with the cross axle diameter of axle 21 and through oil outlet F20 planet wheel sphere place are lubricated; Please refer to Fig. 1 and Fig. 4, enter between the input shaft supporting diameter of axle 16 and the back differential gear inner hole surface 23 through oil outlet C13 and be lubricated the lubricated simultaneously input shaft shaft shoulder 17 and the back differential gear shaft shoulder 24 fitting surfaces.
The direction that lubricant oil flowed when direction indication the utility model of arrow was worked among Fig. 1.
Claims (3)
1. ransaxle jackshaft forced lubrication structure, it is characterized in that, outside input shaft, be provided with oil pump, be provided with the input shaft oil duct in the input shaft, the filler opening of input shaft oil duct links to each other with the oil outlet of described oil pump, and the oil outlet of input shaft oil duct is communicated with the lubricant housings that input shaft matches with its overcoat counterpart.
2. ransaxle jackshaft forced lubrication structure according to claim 1 is characterized in that, is provided with the input shaft spline that matches with oil pump internal rotor spline on the oil pump on the described input shaft at the filler opening place.
3. ransaxle jackshaft forced lubrication structure according to claim 1, it is characterized in that, described oil outlet comprise the oil outlet C of the oil outlet B of the oil outlet A of lubricated input shaft outer bearing, lubricated cylindrical gears, lubricated back differential gear and inflow be located on the cross axle the cross axle annular groove and by the oil outlet D of the oil duct on the cross axle by oil outlet E and the lubricated planet wheel of oil outlet F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200066481U CN201953966U (en) | 2011-01-11 | 2011-01-11 | Forced lubrication structure in drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200066481U CN201953966U (en) | 2011-01-11 | 2011-01-11 | Forced lubrication structure in drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953966U true CN201953966U (en) | 2011-08-31 |
Family
ID=44498076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200066481U Expired - Lifetime CN201953966U (en) | 2011-01-11 | 2011-01-11 | Forced lubrication structure in drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953966U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691751A (en) * | 2012-05-03 | 2012-09-26 | 南京高速齿轮制造有限公司 | Rail transit gearbox |
| CN104315129A (en) * | 2014-10-17 | 2015-01-28 | 中国重汽集团济南动力有限公司 | Novel inter-axle differential device |
| CN109538745A (en) * | 2018-12-26 | 2019-03-29 | 南京越博动力系统股份有限公司 | The connection spline lubricating structure of electric commercial vehicle motor and gearbox |
-
2011
- 2011-01-11 CN CN2011200066481U patent/CN201953966U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691751A (en) * | 2012-05-03 | 2012-09-26 | 南京高速齿轮制造有限公司 | Rail transit gearbox |
| CN102691751B (en) * | 2012-05-03 | 2015-02-04 | 南京高速齿轮制造有限公司 | Rail transit gearbox |
| CN104315129A (en) * | 2014-10-17 | 2015-01-28 | 中国重汽集团济南动力有限公司 | Novel inter-axle differential device |
| CN109538745A (en) * | 2018-12-26 | 2019-03-29 | 南京越博动力系统股份有限公司 | The connection spline lubricating structure of electric commercial vehicle motor and gearbox |
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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: 20110831 |