CN201953968U - Lubrication structure of differential mechanism planetary gear - Google Patents
Lubrication structure of differential mechanism planetary gear Download PDFInfo
- Publication number
- CN201953968U CN201953968U CN 201120017997 CN201120017997U CN201953968U CN 201953968 U CN201953968 U CN 201953968U CN 201120017997 CN201120017997 CN 201120017997 CN 201120017997 U CN201120017997 U CN 201120017997U CN 201953968 U CN201953968 U CN 201953968U
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- China
- Prior art keywords
- planetary gear
- differential
- differential mechanism
- planet pin
- lubricating structure
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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.)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
- F16H2048/085—Differential gearings with gears having orbital motion comprising bevel gears characterised by shafts or gear carriers for orbital gears
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Abstract
The utility model discloses a lubrication structure of a differential mechanism planetary gear, which belongs to the technical field of an automobile differential mechanism, and solves the problems that the lubrication structure of the existing differential mechanism planetary gear can not conduct lubrication sufficiently, the whole lubrication effect is poor, the frictional noise is large and the service life is short. The lubrication structure of the differential mechanism planetary gear is arranged in a differential mechanism shell which is internally provided with a planetary gear shaft, the planetary gear is sheathed on the planetary gear shaft, and a spiral groove is arranged at the periphery of the planetary gear along the axial direction. As for the lubrication structure of the differential mechanism planetary gear, the spiral groove is arranged at the periphery of the planetary gear along the axial direction, so that the planetary gear can be sufficiently lubricated during the rotation process, and the whole lubrication effect of the planetary gear is benefited to greater extent, a good oil film can be kept on the surface of the planetary gear, the frictional noise is low, and the service life is long.
Description
Technical field
The utility model belongs to the automobile differential technical field, relates to a kind of differential mechanism lubricating component, particularly relates to a kind of lubricating structure of differential pinion gear.
Background technique
Automobile in motion, the angular velocity of left and right sidesing driving wheel is almost unequal all the time, therefore, if do not use differential mechanism, the both sides wheel all is fixed on the same rigid pivoted, the phenomenon of sliding in rolling limit, limit must appear in wheel so.Above-mentioned this phenomenon both can be accelerated Tyte Wear, can cause the loss of more power again, also can cause automobile in stays when serious; The effect of differential mechanism is to make automobile realize the differential of left and right wheels when non-rectilinear travels in automobile, so that automobile can cruising.
Differential mechanism directly is connected with automobile tire by semiaxis, is directly bearing the moment of torsion from vehicle, and automobile running is when abominable road conditions and Emergency braking, and is very big to the damage of differential mechanism, causes the wearing and tearing of gear and fractureing of locating stud easily, increases vibration noise.On differential spider pinion shaft, have lubricating structure at above-mentioned this situation, traditional differential pinion gear lubricating system is to process two plane groovings on planet pin, when planetary pinion is installed on the planet pin, form oil groove between planetary pinion and the planet pin, lubricant oil is from the gap between oil groove inflow planetary pinion and the planet pin, and flow into the planetary pinion pad respectively with planetary pinion, gap between the housing, play lubricated and cooling action, in above-mentioned lubricating structure, planetary pinion can not lubricate when rotated fully, its planetary whole lubrication effect is bad, frictional noise is big, can not make planetary surface keep good oil film, working life is short.
Summary of the invention
The purpose of this utility model is at existing deficiency, and the lubricating structure of the differential pinion gear of a kind of energy sufficient lubrication is provided.
The purpose of this utility model can realize by following technical proposal: a kind of lubricating structure of differential pinion gear, this lubricating structure is arranged in the differential casing, in housing, be provided with planet pin, be arranged with planetary pinion on this planet pin, it is characterized in that its axial direction of circumference upper edge of described planet pin has a spiral chute.
The lubricating structure of this differential pinion gear is the spiral chute that processes an indent on planet pin, this spiral chute is planet pin and planetary oil groove, lubricant oil is from the gap between oil groove inflow planetary pinion and the planet pin, and flow into the planetary pinion pad respectively and the gap between the planetary pinion, housing, play lubricated and cooling action.
In the lubricating structure of above-mentioned differential pinion gear, described spiral fluted cross section is semicircle.The purpose of She Zhiing makes spiral chute and planetary pinion area of contact big like this, can carry out lubricated fully.
In the lubricating structure of above-mentioned differential pinion gear, an end of described planet pin has radially fixed hole, and this planet pin is fixed on the differential casing by the fixed hole that locating stud passes on it.Limit the axial and displacement radially of planet pin, fixed structure is simple.
In the lubricating structure of above-mentioned differential pinion gear, has the gap of 0.025mm～0.1mm between described planet pin and the planetary pinion.When using, reality has oil lubrication on this gap.
In the lubricating structure of above-mentioned differential pinion gear, be connected by pad between described planetary pinion and the housing.This pad is the pad of planetary pinion special use, its high working efficiency.
In the lubricating structure of above-mentioned differential pinion gear, described pad respectively and leave between the planetary pinion, housing and be less than or equal to the 0.1mm gap.When practical application, this pad is the planetary pinion pad, and the gap between the gap between planetary pinion pad and the planetary pinion and planetary pinion pad and the housing all has oil lubrication.
Compared with prior art, the lubricating structure of this differential pinion gear has a spiral chute at its axial direction of the circumference upper edge of planet pin, planetary pinion can lubricate when rotated fully, more help planetary whole lubrication effect, make planetary surface keep good oil film, little, the long service life of frictional noise.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the lubricating structure of this differential pinion gear.
Fig. 2 is the main TV structure schematic representation of the planet pin in the lubricating structure of this differential pinion gear.
Among the figure, 1, housing; 1a, axis hole; 2, planet pin; 2a, spiral chute; 2b, fixed hole; 3, planetary pinion; 4, locating stud; 5, pad.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Automobile in motion, about two driving wheel rotate simultaneously, when travelling at the turning, the distance that inboard wheel is passed by is less than outboard wheels; If two wheels rotate with rotating speed, and the distance that interior wheel is passed by is little, wheel limit rolling slippage in then must causing, aggravation Tyte Wear.Therefore, slower in order to guarantee inboard wheel than outboard wheels rotational speed, differential mechanism must be installed.
As shown in Figure 1, this differential spider pinion shaft 2 is installed on the differential casing 1, has the axis hole 1a that planet pin 2 is installed on the differential casing 1, one end of this planet pin 2 has radially fixed hole 2b, this planet pin 2 is fixed on the axis hole 1a of differential casing 1 by the fixed hole 2b that locating stud 4 passes on it, the center line of planet pin 2 becomes 90 degree to install with the center line of differential gear, planetary pinion 3 is bevel gear with differential side gear, after both assemblings, central direction upper planetary gear and differential side gear at differential mechanism are spacing mutually, at a end away from the differential mechanism central direction, axial position by differential casing 1 restrictions planetary gear 3, be connected by pad 5 between planetary pinion 3 and the differential casing 1, these pad 5 choosings have the planetary pinion pad; When as installed,, between planet pin 2 and planetary pinion 3, has the lubrication gap of 0.075mm in order to have lubricant oil between planet pin 2 and the planetary pinion 3; In order to have lubricant oil between pad 5 and the planetary pinion 3 and between pad 5 and the housing 1, leave the 0.1mm gap respectively and between the planetary pinion 3, housing 1 at pad 5.
As shown in Figure 2, the lubricating structure of this differential pinion gear is the spiral chute 2a that processes an indent on planet pin 2, semicircle is processed in the cross section of this spiral chute 2a, this spiral chute 2a is the oil groove of planet pin 2 and planetary pinion 3, lubricant oil is from the gap between oil groove inflow planetary pinion 3 and the planet pin 2, and flow into pad 5 respectively and the gap between the planetary pinion 3, housing 1, play lubricated and cooling action.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. the lubricating structure of a differential pinion gear, this lubricating structure is arranged in the differential casing (1), in housing (1), be provided with planet pin (2), be arranged with planetary pinion (3) on this planet pin (2), it is characterized in that its axial direction of circumference upper edge of described planet pin (2) has a spiral chute (2a).
2. the lubricating structure of differential pinion gear according to claim 1 is characterized in that, the cross section of described spiral chute (2a) is semicircle.
3. the lubricating structure of differential pinion gear according to claim 1, it is characterized in that, one end of described planet pin (2) has radially fixed hole (2b), and this planet pin (2) is fixed on the differential casing (1) by the fixed hole (2b) that locating stud (4) passes on it.
4. the lubricating structure of differential pinion gear according to claim 1 is characterized in that, has the gap of 0.025mm～0.1mm between described planet pin (2) and the planetary pinion (3).
5. the lubricating structure of differential pinion gear according to claim 1 is characterized in that, is connected by pad (5) between described planetary pinion (3) and the housing (1).
6. the lubricating structure of differential pinion gear according to claim 5 is characterized in that, described pad (5) respectively and leave between the planetary pinion (3), housing (1) and be less than or equal to the 0.1mm gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120017997 CN201953968U (en) | 2011-01-20 | 2011-01-20 | Lubrication structure of differential mechanism planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120017997 CN201953968U (en) | 2011-01-20 | 2011-01-20 | Lubrication structure of differential mechanism planetary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953968U true CN201953968U (en) | 2011-08-31 |
Family
ID=44498078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120017997 Expired - Fee Related CN201953968U (en) | 2011-01-20 | 2011-01-20 | Lubrication structure of differential mechanism planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953968U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219970A (en) * | 2018-03-01 | 2019-09-10 | 本田技研工业株式会社 | Differential gear |
| WO2019178848A1 (en) * | 2018-03-23 | 2019-09-26 | 舍弗勒技术股份两合公司 | Linear shaft for differential and differential |
| CN110578782A (en) * | 2018-06-08 | 2019-12-17 | 舍弗勒技术股份两合公司 | Transmission shaft of differential mechanism and differential mechanism |
| CN110645335A (en) * | 2019-09-17 | 2020-01-03 | 南京理工大学 | Planetary gear |
-
2011
- 2011-01-20 CN CN 201120017997 patent/CN201953968U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219970A (en) * | 2018-03-01 | 2019-09-10 | 本田技研工业株式会社 | Differential gear |
| WO2019178848A1 (en) * | 2018-03-23 | 2019-09-26 | 舍弗勒技术股份两合公司 | Linear shaft for differential and differential |
| CN111684180A (en) * | 2018-03-23 | 2020-09-18 | 舍弗勒技术股份两合公司 | Linear shaft for differential and differential |
| CN110578782A (en) * | 2018-06-08 | 2019-12-17 | 舍弗勒技术股份两合公司 | Transmission shaft of differential mechanism and differential mechanism |
| CN110645335A (en) * | 2019-09-17 | 2020-01-03 | 南京理工大学 | Planetary gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20140120 |