CN102239350A - Limited-slip differential - Google Patents
Limited-slip differential Download PDFInfo
- Publication number
- CN102239350A CN102239350A CN2009801485581A CN200980148558A CN102239350A CN 102239350 A CN102239350 A CN 102239350A CN 2009801485581 A CN2009801485581 A CN 2009801485581A CN 200980148558 A CN200980148558 A CN 200980148558A CN 102239350 A CN102239350 A CN 102239350A
- Authority
- CN
- China
- Prior art keywords
- limited
- gear
- slip differential
- output disc
- output
- 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.)
- Granted
Links
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention relates to a limited-slip differential (1), particularly for a vehicle, comprising two mounted output shafts (2, 3) and a driving gear wheel (4) which can be used to rotate the output shafts (2, 3). In order to provide a cost-effective limited-slip differential (1) which has a simple design and is subject to little wear during operation, according to the invention the output shafts (2, 3) are connected non-rotatably to an output disk (7, 8) at each adjoining end, wherein gear wheels (9) are arranged in a circle between the output disks (7, 8) and wherein the output disks (7, 8) are configured with recesses (10) which run from the edge to the inside in a curved manner and in which teeth (11) of the gear wheels (9) engage.
Description
The present invention relates to be used for especially the limited-slip differential of vehicle, comprise two output shafts that are supported and actuation gear, this actuation gear can be used for rotating output shaft.
In addition, the present invention relates to vehicle.
The above-mentioned type limited-slip differential is known in the prior art, for example with the form of so-called Torsen-limited-slip differential.Especially, the limited-slip differential of this type is provided, and is delivered to the wheel that moment of torsion is skidded from one of automobile to have the wheel of tractive force preferably, thereby and improves and draw.
The shortcoming that known limited-slip differential has is expensive and with the large space structure, this also brings high cost of production usually.In addition, unfortunately, these limited-slip differentials in use also suffer high wearing and tearing mostly.
The present invention from here on.The objective of the invention is, the limited-slip differential of the above-mentioned type is provided, this limited-slip differential simple structure, cost of production is low and in use stand less wearing and tearing.
The purpose of the limited-slip differential of the above-mentioned type is to realize like this, be that output shaft non-rotatably is connected to an output disc at each abutting end, its middle gear is arranged between the output disc in the mode that becomes a circle, and wherein output disc disposes the groove that extends in the mode of bending from the edge to inside, and the indented joint of gear is in groove.
Adopt the obtained advantage of the present invention particularly in simple structure, limited-slip differential that cost is low are provided, this limited-slip differential also is fabricated with minimal space requirement.This is to realize by the cooperation of two output discs that are provided with the gear that becomes a circle to arrange.Therefore only need two output discs and be arranged in gear between them, to reach the moment of torsion transmission or the torque distribution of two expectations between the output shaft.Less taking up room also is provided like this, even the tooth of gear and the engage grooves that is provided in the output disc.Because the tooth of gear is far arranged at interval with the running shaft of output disc,, thereby only be subjected to less wearing and tearing so the most heavily stressed part only stands little marginal force.
Limited-slip differential structure of the present invention has been utilized the principle that engages with worm gear of conventional limited-slip differential with improved form.But this joint is not to be arranged at as before on the circumferential surface of output disc, but is arranged on the relative face of output disc.This allows directly to adhere between the outlet side of the left and right sides by the gear of arranging to engage all the time with output disc in the mode that becomes a circle.In the plan view of output disc end face, the groove of the bending that provides extends with opposite direction, and can for example be mirror image, to realize the differential action of expectation.
Owing to preferably provide simple structure, gear is by the arrangement that becomes to enclose the land like this, and promptly the running shaft of gear and this circle stretch tangently.Yet, each running shaft and corresponding tangent line form respectively one specific be possible greater than 0 ° of angle until 60 °.Though this is not preferred simple structure, the angle that the plane of running shaft and described circle forms until 15 ° also is possible.
Can be provided like this at the structure of saving the space especially, promptly actuation gear is formed the supporting base of gear.In this case, provide corresponding recess on the hub of actuation gear, so that gear can be around its running shaft rotation.
But can provide similarly, gear is arranged in the housing as supporting base.In embodiments of the invention, actuation gear non-rotatably is assemblied on the housing.In this case, although housing is provided, in order to realize saving as far as possible the structure in space, housing has circumferential notches in the scope of gear, and the next door that actuation gear is arranged in recess also conforms with expectation.Then, housing can be positioned as close to the gear arrangement, and these gears are interfered in it rotatablely moves.By the same token, actuation gear is assembled in the next door of recess, thereby makes it not hinder gear to rotatablely move.
If housing is provided, being proved to be appropriate within the scope of the present invention is that output disc laterally is installed in the housing, and is fixed by the housing lid of side direction, to resist axial displacement.
Appropriate is that gear has two to ten preferably cylindrical or Frusto-conical teeth, though the tooth of more this form also can be provided.Then, the groove of the output disc that extends inward from the edge in the mode of bending has corresponding profile, thereby makes gear minimize bigger pointwise power with big as far as possible area of contact and can slide into wherein.As long as assurance cooperates with output disc, these teeth can form with any other shapes in principle.
Limited-slip differential of the present invention can form like this, and promptly the multiple of the quantity of the quantity of the quantity of the groove in two output disc and gear or gear is corresponding.If the groove of output disc has undercutting, will help installing easily.
Depend on moment of torsion or the torque distribution that to transmit, can design like this that promptly the quantity of the groove in two output discs is identical or different, yet preferably, as mentioned, each is corresponding with the integral multiple of the quantity of the quantity of gear or gear.By according to designs of differentials of the present invention, can between output shaft, set constant different moment of torsion transmission in predetermined mode.For example, when four gears were provided, an output disc can have eight grooves, and another output disc can have 12 grooves.
Though appropriate within the scope of the invention is to set four gears at least,, can select the quantity of gear in principle arbitrarily in use to make tooth always reach big as far as possible area of contact and to make any wearing and tearing of each tooth keep as much as possible little.Usually, gear is arranged with constant each other distance.
Equally at the minimise wear in using, preferably, the integral multiple of the quantity of the groove in the quantity of the tooth of gear and one or two of output disc or the quantity of groove is different.This tooth that guarantees gear in use with different engage grooves, thereby avoid because the specific proprietary polishing scratch that causes that cooperates of tooth and groove.
Output shaft preferably forms spline.Output shaft also can be used as the jack shaft that is connected with other and forms herein.
Be preferably used for vehicle according to limited-slip differential of the present invention, for example as axle limited-slip differential, middle limited-slip differential or vertical limited-slip differential.Correspondingly, another object of the present invention is a kind of vehicle, have the car that makes up simple, the low production cost and the less limited-slip differential that in use weares and teares in particular, this task is to realize by having according to the vehicle of limited-slip differential of the present invention.
With reference to the accompanying drawings, from following embodiment, other features of the present invention, advantage and act on the basis of accompanying drawing and will become more obvious.In the accompanying drawings:
Fig. 1 is according to the stereogram of limited-slip differential of the present invention and phantom;
Fig. 2 is the exploded view according to limited-slip differential of the present invention.
Explain embodiment below with reference to Fig. 1 and Fig. 2 according to limited-slip differential 1 of the present invention.In illustrated embodiment, limited-slip differential 1 comprises the actuation gear 4 that non-rotatably is assemblied on the housing 13.Two output shafts 2,3 are rotatably installed in the housing lid 15,16 of two side direction.Two output shafts 2,3 that form spline connect with output disc 7,8 releasedly at each abutting end 5,6.What the joint of output shaft 2,3 and output disc 7,8 can go out as shown obtains like that, and promptly output shaft 2,3 and output disc 7,8 have corresponding engagement, thereby along with one rotation in the driven wheel 7,8, the output shaft 2,3 that rotatablely moves and be passed to each connection.Output shaft 2,3 is formed relatively shortly, and can spool being connected the end scope relative with abutting end 5,6 and other (particularly driving a wheel).
The axle 12 of gear 9 be not must all go out as shown like that arrange a circle thereon to place with axle 12 tangently, but each can for example surround from greater than 0 ° of identical angle in 60 ° of scopes with a tangent line equally.
More generally, by the moment of torsion transmission between the groove 10 quantity ratios decision output shaft 2,3 each other of output disc 7,8.The embodiment that the quantity of groove 10 can go out as shown is identical (for example eight) like that, but this is dispensable.What can be set equally is, the quantity of the groove 10 of output disc 7,8 is not equal to another the quantity of groove 10 of output disc 7,8.Groove 10 is by crooked to some extent so.
In addition, the quantity of the groove 10 of output disc 7,8 is selected like this, and promptly the multiple of the quantity of the quantity of this quantity and gear 9 or gear 9 is corresponding.If four gears are provided as the enforcement scheme, then output disc 7,8 can for example each have eight grooves, and this allows the simple assembling of limited-slip differential 1 especially.
In use, gear 9 is around axle 12 rotations, and its running shaft extends with this circle as described tangently, in this circle 9 centres that are arranged between the output disc 7,8 that cog.The power transmission that needs only two wheels that effectively connect with output shaft 2,3 is identical, and then output disc 7,8 also rotates, thereby gear 9 rotates together in the sense of rotation of output shaft 2,3.Under this situation, gear 9 does not rotate around gear 9 axles 12 mounted thereto.Yet, in case wheel no longer can be delivered to power underground or ground and rotation, provide this wheel rotatablely move by limited-slip differential 1 slow down, and transfer torque to another and have the wheel of tractive force preferably.
In principle, gear 9 provided by the invention can form with cylindrical or conical butt, and is made by the steel of for example harden in case of necessity (for example surface hardening).The groove 10 that is provided in the output disc 7,8 forms according to the form of the tooth 11 of gear 9, thereby they can slip in the groove 10 without a doubt.Therefore each gear 9 can rotate freely around the running shaft of axle 12, and need not housing 13 is made up too much, and otch 14 can be provided in housing 13.In this case, as seeing from Fig. 1, actuation gear 4 is assemblied in the next door of opening 14, thereby does not disturb or hinder rotatablely moving of each gear 9.
Can also provide within the scope of the invention, output disc 7,8 is equipped with axial thrust bearing with respect to housing lid 15,16, thus effect that can trickle adjustment limited-slip differential 1.Also possible is, with respect to the supporting base or the housing 13 of gear 9 each gear 9 is installed with packing ring, can change regulate retardation or reach different friction factor when forward and reverse motion by friction factor with it equally, so just can align reversing motion relatively and provide different retardations.
Though the housing 13 of a year gear 9 is provided in the above embodiment of illustrating, also can made up housing 13 according to limited-slip differential 1 of the present invention.In this case, gear 9 can be installed in the seat cushion circle of actuation gear 4.The seat cushion circle can freely be rotatably installed on one or two the elongated portion in the output shaft 2,3, and wherein, output shaft 2,3 separates coaxial installation independently of one another or dependently, and is fixed to resist axial displacement.Also passablely in the structure of the limited-slip differential 1 that does not have housing 13 be, run through on the axle output disc 7 at one, an axle that is rotatably installed on this with the seat cushion circle in 8 non-rotatably is connected, and in the output disc 7,8 second runs through axle and goes up and be fixed and be connected with the hollow shaft of resisting axial displacement with being rotatably installed in equally.
Though described limited-slip differential 1 is preferably used for passenger vehicle, is used for other vehicles, is possible equally as construction vehicle, tractor, rail vehicle etc.In addition, also can be used for vehicle according to limited-slip differential 1 of the present invention with manpower operation.
Claims (14)
1. a limited-slip differential (1), especially, described limited-slip differential (1) is used for vehicle, and described limited-slip differential (1) comprises two output shafts that are supported (2,3) and actuation gear (4), described actuation gear (4) can be used to rotate described output shaft (2,3)
It is characterized in that, described output shaft (2,3) non-rotatably is connected to output disc (7,8) at each abutting end (5,6), its middle gear (9) is arranged between the described output disc (7,8) in the mode of a circle, and wherein said output disc (7,8) is configured with the groove (10) that extends in the mode of bending from the edge to inside, and the tooth (11) of described gear (9) is engaged in the described groove (10).
2. limited-slip differential as claimed in claim 1 (1) is characterized in that, the running shaft and the described circle of described gear (9) are tangent.
3. limited-slip differential as claimed in claim 1 or 2 (1) is characterized in that,
Described actuation gear (4) is formed the supporting base of described gear (9).
4. limited-slip differential as claimed in claim 1 or 2 (1),
It is characterized in that,
Described gear (9) is arranged in the housing (13) as supporting base.
5. limited-slip differential as claimed in claim 4 (1) is characterized in that, described transmission actuation gear (4) non-rotatably is assemblied on the described housing (13).
6. according to claim 4 or 5 described limited-slip differentials (1),
It is characterized in that,
Described housing (13) has circumferential notches (14) in the scope of described gear (9), and described actuation gear (4) is arranged in the next door of described recess (14).
7. as the described limited-slip differential (1) in the claim 4 to 6,
It is characterized in that,
Output disc (7,8) laterally is installed in the described housing (13), and is fixed by the housing lid (15,16) of side direction, to resist axial displacement.
8. as the described limited-slip differential (1) in the claim 1 to 7,
It is characterized in that,
Described gear (9) has two to ten described teeth (11), and preferably, described tooth (11) has cylindrical or Frusto-conical form.
9. as the described limited-slip differential (1) in the claim 1 to 8,
It is characterized in that,
The quantity of the described groove (10) of described output disc (7,8) in the two is corresponding with the multiple of the quantity of the quantity of described gear (9) or described gear (9).
10. as the described limited-slip differential (1) in the claim 1 to 9,
It is characterized in that,
The quantity of the described groove (10) of described output disc (7,8) in the two is identical or different.
11. as the described limited-slip differential (1) in the claim 1 to 10,
It is characterized in that,
At least four described gears (9) are provided.
12. as the described limited-slip differential (1) in the claim 1 to 11,
It is characterized in that,
The integral multiple difference of the quantity of the described groove (10) in the quantity of the described tooth (11) of described gear (9) and one or two of output disc (7,8) or the quantity of described groove (10).
13. as the described limited-slip differential (1) in the claim 1 to 12,
It is characterized in that,
Described output shaft (2,3) is formed spline.
14. a vehicle, especially, described vehicle is a passenger vehicle, and described vehicle comprises as the described limited-slip differential (1) in the claim 1 to 13.
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 true CN102239350A (en) | 2011-11-09 |
| CN102239350B 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 (7)
| 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 |
| CN2043295U (en) * | 1988-07-30 | 1989-08-23 | 周光力 | Low-friction gearing |
| CN101173708A (en) * | 2006-11-02 | 2008-05-07 | 福特全球技术公司 | Differential with inclined lubrication ports |
| DE102006062200A1 (en) * | 2006-12-22 | 2008-06-26 | Gkn Driveline International Gmbh | Differential arrangement for use in drivetrain of motor vehicle, has differential cage with casing part and covering parts, where casing part is formed from deformation of sheet metal and is connected with covering parts by welding |
Family Cites Families (5)
| 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 |
| 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 |
-
2008
- 2008-10-02 AT AT15402008A patent/AT507731B1/en not_active IP Right Cessation
-
2009
- 2009-10-02 CN CN200980148558.1A patent/CN102239350B/en not_active Expired - Fee Related
- 2009-10-02 WO PCT/AT2009/000380 patent/WO2010037153A1/en active Application Filing
Patent Citations (7)
| 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 |
| CN2043295U (en) * | 1988-07-30 | 1989-08-23 | 周光力 | Low-friction gearing |
| CN101173708A (en) * | 2006-11-02 | 2008-05-07 | 福特全球技术公司 | Differential with inclined lubrication ports |
| DE102006062200A1 (en) * | 2006-12-22 | 2008-06-26 | Gkn Driveline International Gmbh | Differential arrangement for use in drivetrain of motor vehicle, has differential cage with casing part and covering parts, where casing part is formed from deformation of sheet metal and is connected with covering parts by welding |
Also Published As
| Publication number | Publication date |
|---|---|
| AT507731B1 (en) | 2014-01-15 |
| CN102239350B (en) | 2016-11-02 |
| AT507731A1 (en) | 2010-07-15 |
| WO2010037153A1 (en) | 2010-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101968112B (en) | Differential having improved torque capacity and torque density | |
| CN101878377B (en) | Preload unit module | |
| CN100421988C (en) | Fitting for a vehicle seat | |
| US7749123B2 (en) | Cycloid limited slip differential and method | |
| CN201902528U (en) | Locking type differential with increased maximum torque | |
| JP2006207805A (en) | Transmission device unit for variable torque distribution | |
| US8051744B2 (en) | Locking differential | |
| JPH0777265A (en) | Differential mechanism driving section | |
| CN103781660A (en) | Harmonic drive disc recliner for automotive vehicle seat | |
| US11014506B2 (en) | Vehicle having a track assembly and a carriage assembly | |
| JP4558126B2 (en) | Parallel shaft gear differential with a pinion fitted with a brake shoe | |
| JP5021343B2 (en) | Double differential device | |
| CN102588553B (en) | Include the no-spin lockup of space wedge mechanism | |
| US7083541B2 (en) | Axle drive block with a differential lock | |
| CN102239350A (en) | Limited-slip differential | |
| JPH0652091B2 (en) | Bevel Gear Differential Gear Automatically Restricted and Locked for Automobile | |
| CN105452729B (en) | Multifunctional bearing ring with enclosed groove for light-weight differential | |
| CN102943860B (en) | Sliding gear type differential device | |
| CN104169614B (en) | Planetary gear train with a planet carrier and a bearing ring having a flange oriented toward the sun gear | |
| JPS63658B2 (en) | ||
| RU2340820C1 (en) | Drive axle of all-wheel-drive vehicle | |
| JP4914718B2 (en) | Continuously variable transmission | |
| CN216618452U (en) | One-way roller pin type differential mechanism | |
| US2050304A (en) | Differential mechanism | |
| CN116928313A (en) | Self-locking differential mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |