CN102239350B - Limited-slip differential - Google Patents
Limited-slip differential Download PDFInfo
- Publication number
- CN102239350B CN102239350B CN200980148558.1A CN200980148558A CN102239350B CN 102239350 B CN102239350 B CN 102239350B CN 200980148558 A CN200980148558 A CN 200980148558A CN 102239350 B CN102239350 B CN 102239350B
- Authority
- CN
- China
- Prior art keywords
- limited
- slip differential
- gear
- groove
- planetary 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
Links
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
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/28—Arrangements for suppressing or influencing the differential action, e.g. locking devices using self-locking gears or self-braking gears
-
- 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
-
- 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
- F16H2048/087—Differential gearings with gears having orbital motion comprising bevel gears characterised by the pinion gears, e.g. their type or arrangement
-
- 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
- F16H48/40—Constructional details characterised by features of the rotating cases
Abstract
The present invention relates to limited-slip differential (1), especially, limited-slip differential (1) is used for vehicle, limited-slip differential (1) includes two output shafts being supported by (2,3) and drives gear (4), drives gear (4) to may be used for rotating output shaft (2,3).There is simple design and the most hardly through frayed cost effective limited-slip differential (1) to provide, according to the present invention, output shaft (2,3) is non-rotatably connected to output panel (7,8) at each abutting end, its middle gear (9) is arranged between output panel (7,8) in the way of a circle, and wherein output panel (7,8) is configured with the groove (10) extended from edge to inside in curved manner, and the tooth (11) of gear (9) is engaged in groove (10).
Description
The present invention relates to be particularly used for the limited-slip differential of vehicle, including two output shafts being supported by and driving gear,
This driving gear may be used for rotating output shaft.
Additionally, the present invention relates to vehicle.
The above-mentioned type limited-slip differential is known in the prior art, such as with the form of so-called Torsen-limited-slip differential.
Especially, the limited-slip differential of this type is provided, to be delivered to moment of torsion from the wheel of a skidding of automobile have preferably
The wheel of pull strength, and thus improve traction.
Known limited-slip differential has the drawback that costliness and constructs with large space, and this most also brings high production cost.
Additionally, unfortunately, these limited-slip differentials are worn and torn by height the most mostly.
The present invention is from here on.It is an object of the present invention to provide the limited-slip differential of the above-mentioned type, this limited-slip differential structure
Make simple, production cost is low and in use stands less abrasion.
The purpose of the limited-slip differential of the above-mentioned type is achieved in that i.e. output shaft is non-rotatably connected at each abutting end
Receive an output panel, its middle gear by become one circle in the way of be arranged between output panel, and wherein output panel be configured with
The groove that the mode of bending extends from edge to inside, and the toe joint of gear is together in groove.
Use the advantage acquired by the present invention particularly in providing simple structure, the limited-slip differential of low cost, this slide limiting differential
Device is also fabricated with minimal space requirement.This is by two output panels being provided and the gear becoming a circle to arrange
Coordinate realization.The most only need two output panels and arrange gear between which, to reach between two output shafts
The transmission of desired moment of torsion or moment of torsion distribution.Less taking up room the most so is provided, even if the tooth of gear is exporting with providing
Groove in dish engages.Because the tooth of gear is arranged farther out by the new ro-tational axis with output panel, so the most heavily stressed portion
Divide and only stand little edge force, thus only by less abrasion.
The limited-slip differential structure of the present invention make use of the principle engaged with worm gear of the limited-slip differential of routine with improved form.
But, this joint is not to be arranged on the periphery of output panel as before, and is arranged for the relative of output panel
Face on.This allows to arrange the gear engaged all the time with output panel direct between the outlet side of left and right by the way of with one-tenth one circle
Attachment.In the plan view of output panel end face, it is provided that the groove of bending extend in a reverse direction, and can such as in
Mirror image, to realize desired differential action.
Owing to preferably providing simple structure, the rotary shaft that gear is so become enclose the land arrangement, i.e. gear is tangent with this circle
Ground stretches.But, each rotary shaft forms one respectively and is specifically more than 0 ° until the angle of 60 ° is can with corresponding tangent line
Can.Although this is not preferred simple structure, but the plane of rotary shaft and described circle is formed until the angle of 15 ° is also
Possible.
The bearing driving gear to be formed gear can be provided such that it is for saving space-efficient structure especially.?
In this case, drive and provide corresponding recess, so that gear can rotate around its rotary shaft on the hub of gear.
But can be similarly provided, gear is arranged in the housing as a bearing.In embodiment of the present invention
In, drive gear to be non-rotatably assemblied on housing.In this case, although housing is provided, in order to realize to the greatest extent
May save space-efficient structure, housing has circumferential notches in the range of gear, and drives gear to be arranged in the side of recess
Limit is also desirably.Then, housing can be positioned as close to gear arrangement, without making these gears rotate at it
Motion is interfered.By the same token, gear is driven to be assembled in the side of recess, so that it does not hinder gear
Rotary motion.
If housing is provided, it is proved to be it is appropriate that output panel is laterally mounted in housing within the scope of the present invention,
And fixed by lateral case lid, to resist axial displacement.
It is appropriate that gear has two to ten the most cylindrical or Frusto-conical teeth, although the most this
The tooth of form can also be provided.Then, the groove of the output panel extended inward from edge in curved manner has accordingly
Profile so that gear minimizes bigger pointwise power with the biggest contact area and can slide into wherein.Only
Ensureing and the coordinating of output panel, these teeth can be formed with arbitrarily other shapes in principle.
The limited-slip differential of the present invention may be formed so that, the quantity of groove in i.e. two output panels and the quantity of gear or tooth
The multiple of the quantity of wheel is corresponding.If the groove of output panel has undercutting, it is beneficial to install easily.
Depend on moment of torsion to be transmitted or moment of torsion distribution, may be designed so that, i.e. the quantity of the groove in two output panel is
Same or different, it is preferable, however, that as mentioned, the integral multiple of the quantity of each quantity with gear or gear
Corresponding.By the designs of differentials according to the present invention, can set between output shaft in a predetermined manner constant not
Same moment of torsion transmission.Such as, when providing four gears, an output panel can have eight grooves, another output panel
Can have 12 grooves.
Although within the scope of the invention it is appropriate that at least set four gears, in use to make tooth generally reach as far as possible
Big contact area and make any abrasion of each tooth be kept as much as possible little, but can arbitrarily select gear in principle
Quantity.Usually, gear is arranged with constant distance each other.
Minimize for the abrasion in using equally, it is preferred that in one or two of the quantity of the tooth of gear and output panel
The quantity of groove or the integral multiple of quantity of groove different.This ensures that the tooth of gear in use engages from different grooves,
Thus avoid due to tooth and groove the most proprietary coordinate the polishing scratch caused.
Output shaft is preferably formed to spline.Output shaft can also be formed as the jackshaft being connected with other axles herein.
It is preferably used for vehicle, such as axle limited-slip differential, middle limited-slip differential according to the limited-slip differential of the present invention
Or longitudinal limited-slip differential.Correspondingly, another object of the present invention is a kind of vehicle, have in particular structure simple,
Low production cost and the car of the less limited-slip differential that in use weares and teares, this task is by having according to the present invention
The vehicle of limited-slip differential realize.
With reference to accompanying drawing, from embodiments below, other features of the present invention, advantage and will on the basis of acting on accompanying drawing
Become readily apparent from.In the accompanying drawings:
Fig. 1 is axonometric chart and the phantom of the limited-slip differential according to the present invention；
Fig. 2 is the exploded view of the limited-slip differential according to the present invention.
The embodiment of the limited-slip differential 1 according to the present invention is explained below with reference to Fig. 1 and Fig. 2.Illustrated embodiment party
In case, limited-slip differential 1 includes the driving gear 4 being non-rotatably assemblied on housing 13.Two output shafts 2,3 can
It is rotationally mounted in two lateral case lid 15,16.Two output shafts 2,3 being formed as spline are at each abutting end
5,6 are releasably attached with output panel 7,8.The joint of output shaft 2,3 and output panel 7,8 can as shown that
Sample obtains, i.e. output shaft 2,3 and output panel 7,8 there is the joint of correspondence, thus along with follower 7, in 8
Rotation, rotary motion is passed to the output shaft 2,3 of each connection.Output shaft 2,3 are formed by relatively short, and
Can with abutting end 5,6 relative end range are connected with the axle of other (particularly driving a wheel).
Output panel 7, each groove 10 with multiple bending in 8, they are from output panel 7, during the edge of 8 extends to
The heart, and engage with the tooth 11 of the gear 9 arranged in the way of becoming a circle on housing 13, thus the rotation of each gear 9
Rotating shaft tangentially extends with this circle.The quantity of the tooth 11 of each gear 9 is constant.In embodiments, Mei Gechi
Wheel 9 has seven teeth 11, and they engage with eight grooves 10 of output panel 7,8.Quantity according to tooth 11 and groove 10
The ratio of quantity, gear 9 carries out the most fully rotating, output panel 7, and 8 equal to being reversed 7/8 rotation.
The axle 12 of gear 9 is not necessary to be arranged in circle thereon with axle 12 the most as shown and tangentially places, and
Be each equally surround with a tangent line such as from more than 0 ° until identical angle in the range of 60 °.
More generally, by output panel 7, the groove 10 of 8 quantity ratios each other determines output shaft 2, and the moment of torsion between 3 passes
Pass.The quantity of groove 10 can embodiment be identical (such as eight) as shown like that, but this is dispensable.
Equally being set, output panel 7, the quantity of the groove 10 of 8 is not equal to output panel 7, another the groove of 8
The quantity of 10.So groove 10 is bent to some extent.
Additionally, the quantity of the groove 10 of output panel 7,8 so selects, i.e. the quantity of this quantity and gear 9 or gear 9
The multiple of quantity is corresponding.If providing four gears, then output panel 7 as embodiment, 8 can the most each have
Eight grooves, this allows the simple assembling of limited-slip differential 1 especially.
In use, gear 9 rotates around axle 12, and its rotary shaft tangentially extends with this circle as described,
This circle gear 9 is arranged at output panel 7, the centre between 8.As long as with output shaft 2,3 two cars effectively connected
The power transmission of wheel is identical, then output panel 7,8 also rotate, thus gear 9 is at output shaft 2, and the direction of rotation of 3 is together
Rotate.In this condition, gear 9 is not about gear 9 axle mounted thereto 12 and rotates.But, once wheel is not
Underground or ground can be transferred force to again and rotate, it is provided that the limited-slip differential 1 of the rotary motion quilt of this wheel slows down,
And transfer torque to another wheel with preferable pull strength.
In principle, the gear 9 that the present invention provides can be formed with cylindrical or conical butt, and by the hardest
The steel changing (such as Surface hardened layer) is made.Thering is provided at output panel 7, the groove 10 in 8 is according to the shape of the tooth 11 of gear 9
Formula is formed, thus they can slip in groove 10 without any problems.Therefore each gear 9 can be around the rotation of axle 12
Axle rotates freely, and without building too much by housing 13, can provide otch 14 in housing 13.In this situation
Under, as see from Fig. 1, drive gear 4 to be assemblied in the side of opening 14, thus do not disturb or hinder each
The rotary motion of gear 9.
Can also provide that within the scope of the invention, output panel 7,8 relative to case lid 15, and 16 equipped with axial thrust
Bearing, such that it is able to the effect of trickle adjustment limited-slip differential 1.It is still possible that with packing ring relative to the supporting of gear 9
Seat or housing 13 install each gear 9, equally with it by coefficient of friction change regulation retardation or just
Reach different coefficient of frictions during adverse movement, thus can align adverse movement relatively and provide different retardations.
Although at the set forth above housing 13 that embodiment, provides support gear 9, but sliding according to the limit of the present invention
Differential mechanism 1 can not also build housing 13.In this case, gear 9 may be mounted at the seat cushion driving gear 4
In.Seat cushion can freely be rotatably installed in output shaft 2, in the elongated portion of one or two in 3, wherein,
Output shaft 2,3 are co-axially mounted independently of one another or the most separately, and are held to resist axial displacement.There is no shell
It can be possible that run through output panel 7, in 8 and seat on axle at one in the structure of the limited-slip differential 1 of body 13
The axle that packing ring is rotatably installed on this axle non-rotatably connects, and output panel 7, second in 8 with as
It is rotatably installed in and runs through on axle and be held to resist the hollow axle connection of axial displacement.
Although described limited-slip differential 1 is preferably used for passenger vehicle, but for other vehicles, such as construction vehicle, draws
Machine, rail vehicle etc. are equally possible.Additionally, can be used for running with manpower according to the limited-slip differential 1 of the present invention
Vehicle.
Claims (13)
1. a limited-slip differential (1), described limited-slip differential (1) include two output shafts being supported by (2,3) with
And drive gear (4), described driving gear (4) is used for rotating described output shaft (2,3),
It is characterized in that, described output shaft (2,3) is non-rotatably connected to output panel at each abutting end (5,6)
(7,8), wherein planetary gear (9) is arranged between described output panel (7,8) in the way of a circle, and wherein
Described output panel (7,8) is configured with the groove (10) extended from edge to inside in curved manner, and described row
The tooth (11) of star gear (9) is engaged in described groove (10)；
Wherein, described tooth (11) has cylindrical or Frusto-conical form and described groove (10) has according to institute
State the form of the form of tooth (11)；
Wherein, planetary gear described at least four (9) is provided；
Wherein, the rotary shaft of described planetary gear (9) is tangent with described circle；
Wherein, described driving gear (4) is formed a bearing of described planetary gear (9).
2. limited-slip differential (1) as claimed in claim 1,
It is characterized in that,
Described planetary gear (9) is arranged in the housing (13) as a bearing.
3. limited-slip differential (1) as claimed in claim 2, it is characterised in that described driving gear (4) can not be revolved
It is assemblied on described housing (13) with turning.
4. according to the limited-slip differential (1) described in Claims 2 or 3,
It is characterized in that,
Described housing (13) has circumferential notches (14), and described driving tooth in the range of described planetary gear (9)
Wheel (4) is arranged in the side of described recess (14).
5. limited-slip differential (1) as claimed in claim 2,
It is characterized in that,
Output panel (7,8) is laterally mounted in described housing (13), and by lateral case lid (15,16)
Fixed, to resist axial displacement.
6. limited-slip differential (1) as claimed in claim 1,
It is characterized in that,
Described planetary gear (9) has two to ten described teeth (11).
7. limited-slip differential (1) as claimed in claim 1,
It is characterized in that,
The described output panel (7, the 8) quantity of described groove (10) in the two and the quantity of described planetary gear (9) or
The multiple of the quantity of described planetary gear (9) is corresponding.
8. limited-slip differential (1) as claimed in claim 1,
It is characterized in that,
The quantity of the described groove (10) in both described output panel (7,8) is same or different.
9. limited-slip differential (1) as claimed in claim 1,
It is characterized in that,
Described in one or two of the quantity of the described tooth (11) of described planetary gear (9) and output panel (7,8)
The integral multiple of the quantity of groove (10) or the quantity of described groove (10) is different.
10. limited-slip differential (1) as claimed in claim 1,
It is characterized in that,
Described output shaft (2,3) is formed spline.
11. limited-slip differentials (1) as claimed in claim 1, it is characterised in that described limited-slip differential (1) is used for car
?.
12. 1 kinds of vehicles, described vehicle includes the limited-slip differential (1) as described in claim 1 to 11.
13. 1 kinds of passenger vehicles, described passenger vehicle includes the limited-slip differential (1) as described in claim 1 to 11.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT15402008A AT507731B1 (en) | 2008-10-02 | 2008-10-02 | SLIP DIFFERENTIAL |
| ATA1540/2008 | 2008-10-02 | ||
| PCT/AT2009/000380 WO2010037153A1 (en) | 2008-10-02 | 2009-10-02 | Limited-slip differential |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102239350A CN102239350A (en) | 2011-11-09 |
| CN102239350B true CN102239350B (en) | 2016-11-02 |
Family
ID=41381595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980148558.1A Expired - Fee Related CN102239350B (en) | 2008-10-02 | 2009-10-02 | Limited-slip differential |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102239350B (en) |
| AT (1) | AT507731B1 (en) |
| WO (1) | WO2010037153A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1007697B (en) * | 2011-08-04 | 2012-09-18 | Λεωνιδας Αχιλλεα Κατρακης | Differential mechanism with controlled engagement/disengagement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1248687A (en) * | 1914-11-21 | 1917-12-04 | Charles Hayes Logue | Differential gearing. |
| US1711546A (en) * | 1925-10-09 | 1929-05-07 | Scurlock Gear Corp | Differential mechanism |
| US3253483A (en) * | 1963-03-06 | 1966-05-31 | Thomas M Mccaw | Differential |
| GB2162601A (en) * | 1984-08-01 | 1986-02-05 | Glaenzer Spicer Sa | Controlled torque transfer differential for a motor vehicle |
| CN101173708A (en) * | 2006-11-02 | 2008-05-07 | 福特全球技术公司 | Differential with inclined lubrication ports |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1352910A (en) * | 1914-05-18 | 1920-09-14 | Brown Lipe Chapin Co | Compensating gearing |
| US1213258A (en) * | 1915-02-18 | 1917-01-23 | Charles E Reddig | Differential gearing. |
| FR2627245B1 (en) * | 1988-02-11 | 1992-08-28 | Seris Bruno | DEVICE FOR TRANSMITTING THE POWER AND TORQUE OF A TWO SHAFT DRIVE MOTOR OF A VEHICLE WHEELS |
| CN2043295U (en) * | 1988-07-30 | 1989-08-23 | 周光力 | Low-friction gearing |
| DE4115304A1 (en) * | 1991-05-10 | 1992-11-12 | Audi Ag | Intermediate differential for motor vehicles - has planetary gears and has bolt star drive by central wheel to drive shaft |
| US5704248A (en) * | 1993-06-10 | 1998-01-06 | Knotts; Stephen E. | Bearing tooth gear |
| DE102006062200B4 (en) * | 2006-12-22 | 2008-12-18 | Gkn Driveline International Gmbh | Differential assembly with multi-part differential carrier and method for producing a differential assembly |
-
2008
- 2008-10-02 AT AT15402008A patent/AT507731B1/en not_active IP Right Cessation
-
2009
- 2009-10-02 WO PCT/AT2009/000380 patent/WO2010037153A1/en active Application Filing
- 2009-10-02 CN CN200980148558.1A patent/CN102239350B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1248687A (en) * | 1914-11-21 | 1917-12-04 | Charles Hayes Logue | Differential gearing. |
| US1711546A (en) * | 1925-10-09 | 1929-05-07 | Scurlock Gear Corp | Differential mechanism |
| US3253483A (en) * | 1963-03-06 | 1966-05-31 | Thomas M Mccaw | Differential |
| GB2162601A (en) * | 1984-08-01 | 1986-02-05 | Glaenzer Spicer Sa | Controlled torque transfer differential for a motor vehicle |
| CN101173708A (en) * | 2006-11-02 | 2008-05-07 | 福特全球技术公司 | Differential with inclined lubrication ports |
Also Published As
| Publication number | Publication date |
|---|---|
| AT507731B1 (en) | 2014-01-15 |
| AT507731A1 (en) | 2010-07-15 |
| CN102239350A (en) | 2011-11-09 |
| WO2010037153A1 (en) | 2010-04-08 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161102 Termination date: 20181002 |
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| CF01 | Termination of patent right due to non-payment of annual fee |