CN103742634B - A kind of differential mechanism cross planetary shaft structure - Google Patents
A kind of differential mechanism cross planetary shaft structure Download PDFInfo
- Publication number
- CN103742634B CN103742634B CN201310728891.8A CN201310728891A CN103742634B CN 103742634 B CN103742634 B CN 103742634B CN 201310728891 A CN201310728891 A CN 201310728891A CN 103742634 B CN103742634 B CN 103742634B
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- China
- Prior art keywords
- planetary gear
- gear shaft
- word
- support block
- axis hole
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Classifications
-
- 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
- F16H48/38—Constructional details
- F16H48/42—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
A kind of cross planetary shaft structure, including planetary gear shaft support block and the word planetary gear shaft long and two short word planetary gear shafts that are fixed thereon, a word planetary gear shaft long and two short word planetary gear shafts are in cross-shaped configuration, two groups of perforates that first axis hole for running through and vertical first axis hole are set are provided with planetary gear shaft support block, two short word planetary gear shafts are respectively equipped with the second axis hole away from one end of planetary gear shaft support block, a word planetary gear shaft long also is provided with the second axis hole for connected with differential housing away from wherein one end of planetary gear shaft support block.The structure is to be supported a word planetary gear shaft long and two short word planetary gear shafts by a planetary gear shaft support block, constitutes the convenient cross planet axis installed, dismantle.Each part is processed respectively, enormously simplify processing technology and manufacturing cost, and each element precision can also be guaranteed, and manufactures and assemble all fairly simple.
Description
Technical field
The invention belongs to automobile technical field, it is related to a kind of auto parts and components.
Background technology
Widely used differential mechanism is symmetrical bevel gear differential on automobile, with simple structure, stable working it is excellent
Point, so being widely used in speed changer.Differential pinion gear is rotated in planet gear hub, wherein many heavy goods vehicles or
The larger planet gear shaft for automobile differential of person's moment of torsion all uses cross planetary shaft structure（Differential mechanism is equipped with 4 planetary gears）.
Differential mechanism cross planet axis are used and are integrally machined manufacture mostly at present, and precision is difficult to ensure, but differential mechanism cross planet axis pair
Processing technology requirement it is higher, if precision it cannot be guaranteed that if, it is all relatively difficult in the manufacture of automobile and assembling process, easily make
Into the waste of processing and manufacturing cost.
The content of the invention
It is an object of the invention to provide a kind of differential mechanism cross planetary shaft structure, the cross planetary shaft structure is easy to add
Work, and be easier to assemble, save processing and manufacturing and assembly cost.
To reach above-mentioned purpose, solution of the invention is：
A kind of cross planetary shaft structure, including planetary gear shaft support block and it is fixed on the planetary gear shaft support block
On a word planetary gear shaft long and two short word planetary gear shafts, the word planetary gear shaft of the length one and two it is short by one
Word planetary gear shaft is in cross-shaped configuration, and first axis hole for running through and vertical institute are provided with the planetary gear shaft support block
Two groups of perforates of the first axis hole setting are stated, the word planetary gear shaft of the length one is arranged on the planet tooth via first axis hole
In wheel shaft support block, two short word planetary gear shafts are arranged on the planetary gear shaft and support via two groups of perforates respectively
In block, and two short word planetary gear shafts are respectively equipped with the second axis hole away from one end of the planetary gear shaft support block
It is connected with differential casing, the word planetary gear shaft of the length one also sets away from wherein one end of the planetary gear shaft support block
There is the second axis hole for connected with differential housing.
Preferably, several oil storage tanks are provided with the word planetary gear shaft of the length one and are beneficial to planetary gear shaft and planet tooth
Lubrication between wheel.
Further, four groups of oil storage tanks, one group two-by-two of four groups of oil storage tanks are provided with the word planetary gear shaft of the length one
It is located at respectively on two armshafts of a word planetary gear shaft long.
Preferably, several oil storage tanks are had in described two short word planetary gear shafts and is beneficial to planetary gear shaft
Lubrication between planetary gear.
Further, one group of oil storage two-by-two is each provided with its armshaft respectively in described two short word planetary gear shafts
Groove.
The oil storage tank is square groove.
Preferably, the planetary gear shaft support block is rectangular structure.
Further, cross-shaped configuration word planetary gear shaft long and two short word planetary gear shafts are with the planet tooth
It is symmetrical arranged centered on the center of wheel shaft support block.
Preferably, the planetary gear shaft support block perpendicular to first axis hole and plane where two groups of perforates side
It is additionally provided with one group of first axis hole upwards.
Preferably, first axis hole, the second axis hole and perforate is circle.
Due to using such scheme, the beneficial effects of the invention are as follows
The invention discloses a kind of new differential mechanism cross planetary shaft structure, the structure is by a planetary gear shaft
Support block supports a word planetary gear shaft long and two short word planetary gear shafts, the convenient installation of composition one,
The cross planetary shaft structure of dismounting.A word planetary gear shaft long, short word planetary gear shaft and planetary gear shaft support block difference
It is processed, enormously simplify the processing technology of each part, each element precision can also be guaranteed, manufactures and assemble and all compare
It is relatively simple, while also saving manufacturing cost.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention；
Fig. 2 is the structural representation of a word planetary gear shaft long in embodiment illustrated in fig. 1；
Fig. 3 is the structural representation of short word planetary gear shaft in embodiment illustrated in fig. 1；
Fig. 4 is the structural representation of planetary gear shaft support block in embodiment illustrated in fig. 1；
Fig. 5 is assembling schematic diagram of the embodiment illustrated in fig. 1 in differential mechanism.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
As shown in figure 1, the invention provides a kind of symmetrically arranged cross planetary shaft structure, including planetary gear shaft support
Block 2 and the word planetary gear shaft 1 long and two short word planetary gear shafts that are fixed in planetary gear shaft support block 2
3, a word planetary gear shaft 1 long and two short word planetary gear shafts 3 are in cross-shaped configuration, right in planetary gear shaft support block 2
Two groups of circular perforates 5 that a first circular axis hole 4 for running through and vertical first axis hole 4 are set, a word row long should be provided with
Star gear shaft 1 is arranged in planetary gear shaft support block 2 via the first axis hole 4, two short word planetary gear shafts 3 respectively via
Two groups of round holes 5 are arranged in planetary gear shaft support block 4, and two short word planetary gear shafts 3 are away from planetary gear shaft
One end of support block 2 be respectively equipped with circle the second axis hole 6 be connected with differential casing 8, grow a word planetary gear shaft 1 away from
Wherein one end of planetary gear shaft support block 2 also is provided with the second axis hole 6 for connected with differential housing 8.Wherein, the first axis hole
4th, the concrete shape of the axis hole 6 of perforate 5 and second can be set according to demand, be not limited to circle.
As shown in figure 5, the differential mechanism cross planetary shaft structure shown in the present invention is in assembling, can first by two short word rows
Star gear shaft 3 is encased in differential casing 8, then is respectively charged into two planetary gears and planetary gear shaft locating piece 2, by row
Be fixed on two short word planetary gear shafts 3 on differential casing 8 by the cooperation of star gear alignment pin 9 and circular second axis hole 6,
So planetary gear shaft support block 2 is limited on the axial direction of differential mechanism, then a word planetary gear shaft 1 long is passed through into two
Circular first axis hole 4 on planetary axis hole and planetary gear shaft support block 2, again by the He of planetary gear alignment pin 9
Be fixed on a word planetary gear shaft 1 long on differential casing 8 by the cooperation of circular second axis hole 6, and planetary gear shaft support block 2 exists
Differential mechanism is in the radial direction limited.So planetary gear shaft support block 2 is just completely fixed, a word planetary gear shaft 1 long
Word planetary gear shaft 3 short with two effectively increases the cross row with regard to being supported mutually by planetary gear shaft support block 2
The intensity of star axle.Additionally, also can first luggage word planetary gear shaft 1 long, then install two with short word planetary gear shaft 2.
The concrete structure of a long word planetary gear shaft 1 as shown in Fig. 2 it include shaft body, be arranged on it is some on armshaft
Individual oil storage tank 7 and circular second axis hole 6 away from the wherein end of planetary gear shaft support block 2.A word planetary gear shaft 1 long
Circular second axis hole 6 is only provided with one end, by the hole, can be used planet axis alignment pin to fix a word planetary gear shaft 1 long
On differential casing 8.The other end of a word planetary gear shaft 1 long is unfixed, because passing through a planet axis alignment pin
And the planetary gear shaft hole on differential casing 8 can be completely spacing by a word planetary gear shaft 1 long, and differential mechanism is in work
During, part heating can deform, if the other end is also fixed, can produce positioning.Additionally, by a word planet tooth long
A word planetary gear shaft 1 i.e. long is exposed and is provided for storing up at the two-arm position of planetary gear shaft support block 2 on the armshaft of wheel shaft 1
The oil storage tank 7 of oil, is conducive to the lubrication between planetary gear shaft and planetary gear.In the present embodiment, 4 square structures are provided with
Oil storage tank 7, four difference of oil storage tank 7 are located on the armshaft of the both sides of planetary gear shaft support block 2 for one group two-by-two, and positioned at a side arm
On median plane of two groups of oil storage tanks 7 on a long word planetary gear shaft 1 be symmetrical arranged, with large area of trying one's best is planetary gear
Axle provides lubricating oil with planetary gear.
If two concrete structures of short word planetary gear shaft 2 are as shown in figure 3, including shaft body, be arranged on armshaft
Dry oil storage tank 7 and the second circular axis hole 6 of the one end away from planetary gear shaft support block 2, short word planetary gear shaft 2
On the axis hole 6 of oil storage tank 7 and second effect with grow a word planetary gear shaft 1 in effect as, in the present embodiment, two are short
One word planetary gear shaft 2 is each provided with the oil storage tank 7 of one group of square structure two-by-two on its armshaft.Every short word planet tooth
Two groups of oil storage tanks 7 on wheel shaft 2 are also that the median plane on short word planetary gear shaft 2 is symmetrical arranged.
The concrete structure of planetary gear shaft support block 2 is as shown in figure 4, planetary gear shaft support block 2 is except for cuboid or just
Can also be the structures such as cylinder, spheroid outside cube structure.But planetary gear shaft support block 2 is cuboid or cube structure
If, the first axis hole 4 and two groups of circular perforates 5 are more readily processed.Additionally, planetary gear shaft support block 2 is perpendicular to circle
It is additionally provided with one group of first circular axis hole 4 on first axis hole 4 and two groups of directions of the place plane of round hole 5, the of the circle
The setting of one axis hole 4 both, beneficial to part lightweight, can reduce material cost, while being also convenient for the dress of planetary shaft structure with loss of weight
Match somebody with somebody, save installation time, certainly, it is also dependent on needing to set two groups of structures of perforate 5 in the same direction.
A kind of Novel differential gear cross planetary shaft structure shown in the present invention, including a word planetary gear shaft 1, long
The short word planetary gear shaft 3 of individual planetary gear shaft support block 2,2.The cross planetary shaft structure is positioned by 3 planetary gears
Pin 9 is fixed on differential casing 8.4 planetary gears are being rotated respectively in cross planet axis respectively.A word planetary gear long
Axle 1, short word planetary gear shaft 3 and planetary gear shaft support block 2, each part are individually processed, and enormously simplify processing
Technique, machining accuracy is also guaranteed, and effectively reduces processing cost.
The above-mentioned description to embodiment is to be understood that and apply this hair for ease of those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to implementation here
Example, those skilled in the art's announcement of the invention, not departing from improvement that scope made and modification all should be
Within protection scope of the present invention.
Claims (1)
1. a kind of cross planetary shaft structure, it is characterised in that：Including planetary gear shaft support block and it is fixed on the planet tooth
A word planetary gear shaft long and two short word planetary gear shafts in wheel shaft support block, the planetary gear shaft support block
It is rectangular structure, the word planetary gear shaft of the length one and two short word planetary gear shafts are in cross-shaped configuration, the planet
Two groups of perforates that first axis hole for running through and vertical first axis hole are set, the length one are provided with gear shaft support block
Word planetary gear shaft is arranged in the planetary gear shaft support block via first axis hole, two short word planet teeth
Wheel shaft is arranged in the planetary gear shaft support block via two groups of perforates respectively, and two short word planetary gear shafts are remote
The second axis hole is respectively equipped with from one end of the planetary gear shaft support block to be connected with differential casing, the word planet of the length one
Gear shaft away from two ends Zhong Jin one end connected with differential housing of the planetary gear shaft support block, do not fix by the other end；And
One end of the connected with differential housing sets the second axis hole, is connected with differential casing by the second axis hole；
The planetary gear shaft support block is additionally provided with first axis hole and the direction of plane where two groups of perforates
One group of first axis hole；Several oil storage tanks are provided with the word planetary gear shaft of the length one be beneficial to planetary gear shaft and planetary gear
Between lubrication；It is provided with four groups of oil storage tanks in the word planetary gear shaft of the length one, four groups of oil storage tanks, one group of difference position two-by-two
In on two armshafts of a word planetary gear shaft long；Had in two short word planetary gear shafts several oil storage tanks with
Beneficial to the lubrication between planetary gear shaft and planetary gear；It is each on its armshaft respectively in two short word planetary gear shafts
From being provided with one group of oil storage tank two-by-two；The oil storage tank is square groove；
Cross-shaped configuration word planetary gear shaft long and two short word planetary gear shafts are with the planetary gear shaft support block
It is symmetrical arranged centered on center；
First axis hole, the second axis hole and perforate are circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728891.8A CN103742634B (en) | 2013-12-25 | 2013-12-25 | A kind of differential mechanism cross planetary shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728891.8A CN103742634B (en) | 2013-12-25 | 2013-12-25 | A kind of differential mechanism cross planetary shaft structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103742634A CN103742634A (en) | 2014-04-23 |
| CN103742634B true CN103742634B (en) | 2017-06-27 |
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ID=50499685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310728891.8A Active CN103742634B (en) | 2013-12-25 | 2013-12-25 | A kind of differential mechanism cross planetary shaft structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN103742634B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916352A (en) * | 2018-05-31 | 2018-11-30 | 汽解放汽车有限公司 | A kind of driven wheel of differential and differential mechanism left housing integrate structure |
| CN112747100A (en) * | 2019-10-31 | 2021-05-04 | 江苏太平洋精锻科技股份有限公司 | Straight shaft |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202381648U (en) * | 2011-12-19 | 2012-08-15 | 东风汽车有限公司 | Split type cross axle |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3966020A (en) * | 1974-12-04 | 1976-06-29 | Allis-Chalmers Corporation | Differential lubrication system |
| FR2682732B1 (en) * | 1991-10-21 | 1997-10-24 | Peugeot | DIFFERENTIAL FOR CENTRAL HOLDING OF SATELLITE AXLES. |
| US5823908A (en) * | 1996-10-11 | 1998-10-20 | Dana Corporation | Differential spider with retaining caps for retaining bevel pinions in a differential |
| DE10008511A1 (en) * | 2000-02-24 | 2001-08-30 | Zahnradfabrik Friedrichshafen | Bevel differential gear cage in two parts joins parts by crosspin led through projection of one part into flank of adjoining part via groove recess. |
| CN201568441U (en) * | 2009-11-05 | 2010-09-01 | 青特集团有限公司 | Three-segment combined differential spider |
| CN201696581U (en) * | 2010-05-25 | 2011-01-05 | 山东五征集团有限公司 | Differential with four planetary gears |
| CN101893077B (en) * | 2010-07-01 | 2012-10-03 | 吉林大学 | Differential-speed dynamic coupling device |
| CN201944094U (en) * | 2010-12-03 | 2011-08-24 | 衡阳风顺车桥有限公司 | Planetary gear shaft of differential mechanism |
| CN103438179A (en) * | 2013-08-09 | 2013-12-11 | 浙江吉利汽车研究院有限公司 | Automobile differential mechanism |
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2013
- 2013-12-25 CN CN201310728891.8A patent/CN103742634B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202381648U (en) * | 2011-12-19 | 2012-08-15 | 东风汽车有限公司 | Split type cross axle |
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| Publication number | Publication date |
|---|---|
| CN103742634A (en) | 2014-04-23 |
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