CN102734422A - Transfer case equipped with a center limited slip differential - Google Patents
Transfer case equipped with a center limited slip differential Download PDFInfo
- Publication number
- CN102734422A CN102734422A CN2011100898355A CN201110089835A CN102734422A CN 102734422 A CN102734422 A CN 102734422A CN 2011100898355 A CN2011100898355 A CN 2011100898355A CN 201110089835 A CN201110089835 A CN 201110089835A CN 102734422 A CN102734422 A CN 102734422A
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- gear
- modiolus
- spline
- differential
- semiaxis
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Abstract
The invention provides a transfer case equipped with a center limited slip differential, comprising a case body fixedly connected to a gearbox, a main transmission shaft connected to the output end of the gearbox, and two main change-speed gears sleeved at the two ends of the external splines of the main transmission shaft. A joint sleeve is sleeved in the ring of a shifting fork. Two auxiliary change-speed gears are engaged with the main change-speed gears, a third worm shaft is rotationally cooperated with a first half-shaft worm gear, a fourth worm shaft is rotationally cooperated with a second half-shaft worm gear, the third worm shaft and the fourth worm shaft are reversely and intersectionally connected, the half-shaft worm gears are rotationally fixed in a casing, a half-shaft joint gear is rotationally fixed to the casing and the half-shaft worm gears and is provided with external splines same to that of the half-shaft worm gears and the casing, the half-shafts are connected to the half-shaft joint gear via the splines. The transfer case provided is applied on a 4-wheel driven car to respectively realize the functions of high gear, low gear, neutral, front-drive, rear-drive, four-drive and the four-drive locking of the center differential, moreover, the transfer case provided can dynamically distribute the front and rear powers and has a limited slip self-locking function.
Description
Technical field
Field of mechanical technique of the present invention, the transfer case of limited slip differential in the middle of particularly a kind of having.
Background technique
Transfer case is the main part that the 4 wheel driven automobile drives sedan-chair; Its effect is in latter two semiaxis transferring power forward; And can realize that two drive or the effect of 4 wheel driven and auxiliary transmission, locking maybe can only be an AWD with 4 wheel driven but the transfer case that existing technology provides can only drive two.
Summary of the invention
The present invention provides a kind of transfer case, can realize the function of differential mechanism in the middle of top gear, bottom gear, neutral, forerunner, rear-guard, 4 wheel driven and the 4 wheel driven locking respectively, front and back power dynamic assignment and anti-skidding auto-lock function is arranged
To achieve these goals, the present invention provides following technological scheme:
The transfer case of limited slip differential in the middle of a kind of having, it comprises: casing, intermediate portion have the main drive shaft of outside protrusion spline;
Rotating be enclosed within the main drive shaft two ends small one and large one and two mains of outside protrusion spline are arranged;
Two ends have the differential casing of outside protrusion spline and are fixed on little one big two the secondary speed change gears of one on the said differential casing, the 3rd modiolus and the 4th modiolus;
The two ends of said the 3rd modiolus and the 4th modiolus all are reverse helical gear or spiral gear; The centre of said the 3rd modiolus and the 4th modiolus all is a spiral gear; Said two secondary speed change gears are meshed with said two mains, vertical and rotating being installed in the said differential casing of said the 3rd modiolus and the 4th modiolus;
This transfer case also comprises: circumferential surface is that half front axle gear, the circumferential surface of the outside protrusion spline of having of worm gear form is the back differential gear of the outside protrusion spline of having of worm gear form, the half front axle combination gear with outside protrusion spline, the back semiaxis combination gear with outside protrusion spline, front and back semiaxis, three ends slotting and three clutch collars dialled for going in ring;
Said casing and gearbox are fixedly linked; The output shaft of said main drive shaft and said gearbox is in transmission connection; Said small one and large one two mains are enclosed within the two ends of said main drive shaft spline, and said two mains lean on a side of the spline of said main drive shaft to have the speed change gear spline;
Said clutch collar is provided with internal spline and is enclosed within said three and dials in the ring of inserting;
Said the 3rd modiolus and the first semiaxis worm gear be rotating to cooperate installing; Said the 4th modiolus and the second semiaxis worm gear be rotating to cooperate installing; Said the 3rd modiolus oppositely intersects with said the 4th modiolus and links to each other; Said half front axle gear, differential gear is rotating is fixed in the said differential casing in the back, said half front axle engaging gear, later half be coupling close gear respectively with said half front axle gear, the rotating installing of back differential gear;
Said half front axle, back semiaxis close gear and are connected through the spline mode with said half front axle engaging gear, later half being coupling respectively.
Preferably, said the 3rd modiolus and the 4th modiolus are at least two, vertically be installed in uniformly the said first semiaxis worm gear and the second semiaxis worm gear around.
Through implementing above technological scheme; Have following technique effect: transfer case provided by the invention simple in structure, volume is little; Can realize the function of differential mechanism in the middle of top gear, bottom gear, neutral, forerunner, rear-guard, 4 wheel driven and the 4 wheel driven locking respectively, front and back power dynamic assignment and anti-skidding auto-lock function is arranged.
Description of drawings
The sectional view of the transfer case that Fig. 1 provides for the embodiment of the invention;
First turbine of the differential mechanism that Fig. 2 provides for the embodiment of the invention and the constitutional diagram (side-looking) of the 3rd turbine;
Second turbine of the differential mechanism that Fig. 3 provides for the embodiment of the invention and the constitutional diagram (side-looking) of the 4th turbine.
Embodiment
Technological scheme is for a better understanding of the present invention described embodiment provided by the invention in detail below in conjunction with accompanying drawing.
The embodiment of the invention provides a kind of transfer case that has middle differential mechanism, and like Fig. 1, Fig. 2 and shown in Figure 3, this transfer case comprises: casing 121; The intermediate portion has the main drive shaft 118 of outside protrusion spline, rotating be enclosed within main drive shaft 118 two ends small one and large one and have two mains 116,117 of outside protrusion spline; The differential casing 105 that two ends have an outside protrusion spline be fixed on the secondary speed change gear 114,115 that one on the housing 105 little is big and be meshed with said main 116,117; Vertical and rotating be installed in the said differential casing, two ends are to be the 3rd modiolus 103 of spiral gear and the 4th modiolus 104 (half of two ends wheel tooth degree=crossing angle in the middle of reverse helical gear or the spiral gear.As: 2 axles in every limit, crossing angle 90 degree, wheel tooth degree 45; 3 axles in every limit, crossing angle 120 degree, wheel tooth degree 60 degree; 4 axles in every limit, crossing angle 135 degree, wheel tooth degree 67.5 degree).Concrete, as shown in Figure 2, the tooth of the two ends 104-1 of said the 4th modiolus 104, the helical gear of 104-2 or spiral gear is in the opposite direction, is spiral gear between wherein; In like manner, the tooth of the two ends 103-1 of said the 3rd modiolus 103, the helical gear of 103-2 or spiral gear is in the opposite direction, is spiral gear between wherein.
This transfer case also comprises: circumferential surface is the front and back differential gear 101,102 of the outside protrusion spline of having of worm gear form, the front and back semiaxis engaging gear 106,107 with outside protrusion spline, 110,111, three ends of front and back semiaxis slotting 120,112,113 and three clutch collars 119,108,109 with internal spline of dialling for going in ring.
Said the 3rd modiolus 103 and the first semiaxis worm gear 101 be rotating to cooperate installing; Said the 4th modiolus 104 and the second semiaxis worm gear, 102 rotating installing, said the 3rd modiolus 103 and said 104 reverse intersections continuous (two ends that teeth directional is identical link to each other) of the 4th modiolus of cooperating.
Front and back differential gear 101,102 rotating being fixed in the housing 105; And these front and back differential gear 101,102 outsides have the spline identical with the housing spline; Front and back semiaxis engaging gear 106,107 and housing 105 and differential gear 101,102 are rotating fixing; And front and back semiaxis engaging gear 106,107 has the spline identical with differential gear 101,102 and housing 105, and front and back semiaxis 110,111 and semiaxis engaging gear 106,107 are connected through the spline mode.
When clutch collar 119 engaged main drive shafts 118 with big main 116, power is delivered to little secondary speed change gear 114 through big main 116, and higher speed ratio is arranged was top gear.
When clutch collar 119 engaged main drive shafts 118 with little main 117, power is delivered to first mate's speed change gear 115 through little main 117, and lower speed ratio is arranged was bottom gear.
When 119 of clutch collars engaged main drive shaft 118 and discord main 116,117 joints, power can't transmit and be neutral gear.
Clutch collar 108 engage 105, differential gear 101, semiaxis engaging gear 106; When clutch collar 109 engage 105, differential gear 102, semiaxis engaging gear 107; Housing 105, differential gear 101, semiaxis engaging gear 106 can't relatively rotate; Housing 105, differential gear 102, semiaxis engaging gear 107 are linked to be integral body and can't relatively rotate, and front and back semiaxis 110,111 is for locking state can't relatively rotate, and be differential mechanism pattern in the middle of the 4 wheel driven locking this moment.
Clutch collar 108 engages differential gear 101, semiaxis engaging gear 106; When clutch collar 109 engages differential gear 102, semiaxis engaging gear 107; Differential gear 101, semiaxis engaging gear 106 and semiaxis 110 be linked to be that integral body can't relatively rotate and and housing 105 can relatively rotate; Differential gear 102, semiaxis engaging gear 107 and semiaxis 111 be linked to be that integral body can't relatively rotate and and housing 105 can relatively rotate, semiaxis 110 can relatively rotate with semiaxis 111, be the AWD pattern this moment.
Clutch collar 108 engage 105, half front axle gear 101, half front axle engaging gear 106; When clutch collar 109 engage 105, back differential gear 102; Back differential gear 111, semiaxis engaging gear 107 and housing 105, back differential gear 102 separate; Housing 105, half front axle gear 101, half front axle engaging gear 106, back differential gear 102 are locked as a whole, and power only passes to half front axle 110, and be the forerunner this moment.
Clutch collar 108 engage 105, half front axle gear 101; Clutch collar 109 engage 105, back differential gear 102, later half being coupling when closing gear 107; Half front axle 110, semiaxis engaging gear 106 and housing 105, half front axle gear 101 separate; Housing 105, half front axle gear 101, back differential gear 102, later halfly be coupling that to close gear 107 locks as a whole, power only passes to back semiaxis 111, and be rear-guard this moment.
When vehicle was kept straight on, the front and back wheel rotating speed was identical under the AWD pattern, and inner each parts of differential mechanism do not have motion relatively, and vehicle advances smoothly.
Work as Ackermann steer angle under the AWD pattern; Preceding sidecar wheel is faster than back sidecar wheel commentaries on classics, and half front axle worm gear 101 moved clockwise when housing 105 rotated at this moment, and back semiaxis worm gear 102 moves counterclockwise; Half front axle worm gear 101 drives the 3rd modiolus 103 clockwise and rotates counterclockwise; Back semiaxis worm gear 102 drives the 4th modiolus 104 counterclockwise and clockwise rotates, and the 3rd modiolus 103 relatively rotates with the 4th modiolus 104 counterclockwise clockwise, and vehicle is turned smoothly and advanced.
Under the AWD pattern when the vehicle front-wheel skids or is unsettled; Preceding sidecar wheel quick rotation, back sidecar wheel stops operating, half front axle worm gear 101 clockwise quick rotation when housing 105 rotates at this moment; Back semiaxis worm gear stops operating; Half front axle worm gear 101 drives the 3rd modiolus 103 counterclockwise quick rotation clockwise, and back semiaxis worm gear 102 and the 4th modiolus 104 stop operating, and the 3rd modiolus 103 drives the 4th modiolus 104 counterclockwise and clockwise rotates; The 4th modiolus 104 drives back semiaxis worm gear 102 clockwise and rotates counterclockwise; But drive back semiaxis worm gears 102 with the 4th modiolus 104 bigger frictional force is arranged because the 3rd modiolus 103 drives the 4th modiolus 104, the worm and gear latching characteristics plays a role, thereby inner individual parts stop operating and are delivered to non-slip rear wheel to driving force vehicle can be moved on.
That transfer case provided by the invention has is simple in structure, volume is little, can realize the function of differential mechanism in the middle of top gear, bottom gear, neutral, forerunner, rear-guard, 4 wheel driven and the 4 wheel driven locking respectively, front and back power dynamic assignment and anti-skidding auto-lock function is arranged.
Preferably, the 3rd modiolus and the 4th modiolus in the differential mechanism in the said transfer case be at least two, uniform vertically be installed in the said first semiaxis worm gear and the second semiaxis worm gear around.Said differential mechanism can be separately as before, during and after differential mechanism use and the differential mechanism of available other types substitutes.The housing of said differential mechanism, differential gear, semiaxis engaging gear be rotating to be fixedly linked and all to have outstanding spline and can engage the clutch collar of spline; The splined joint device at two ends can only select for use an end with realize two driving, the clutch collar of differential mechanism pattern and every end can be one or two in the middle of 4 wheel driven and the 4 wheel driven locking, clutch collar can substitute with devices such as clutches.
More than the transfer case of limited slip differential in the middle of the embodiment of the invention provided a kind of having has been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; The part that on embodiment and application area, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1. a transfer case that has middle limited slip differential is characterized in that comprise: casing, intermediate portion have the main drive shaft of outside protrusion spline;
Rotating be enclosed within the main drive shaft two ends small one and large one and two mains of outside protrusion spline are arranged;
Two ends have the differential casing of outside protrusion spline and are fixed on little one big two the secondary speed change gears of one on the said differential casing, the 3rd modiolus and the 4th modiolus;
The two ends of said the 3rd modiolus and the 4th modiolus all are reverse helical gear or spiral gear; The centre of said the 3rd modiolus and the 4th modiolus all is a spiral gear; Said two secondary speed change gears are meshed with said two mains, vertical and rotating being installed in the said differential casing of said the 3rd modiolus and the 4th modiolus;
This transfer case also comprises: circumferential surface is that half front axle gear, the circumferential surface of the outside protrusion spline of having of worm gear form is the back differential gear of the outside protrusion spline of having of worm gear form, the half front axle combination gear with outside protrusion spline, the back semiaxis combination gear with outside protrusion spline, front and back semiaxis, three ends slotting and three clutch collars dialled for going in ring;
Said casing and gearbox are fixedly linked; The output shaft of said main drive shaft and said gearbox is in transmission connection; Said small one and large one two mains are enclosed within the two ends of said main drive shaft spline, and said two mains lean on a side of the spline of said main drive shaft to have the speed change gear spline;
Said three clutch collars are provided with internal spline and are enclosed within said three and dial in the ring of inserting;
Said the 3rd modiolus and the first semiaxis worm gear be rotating to cooperate installing; Said the 4th modiolus and the second semiaxis worm gear be rotating to cooperate installing; Said the 3rd modiolus oppositely intersects with said the 4th modiolus and links to each other; Said half front axle gear, differential gear is rotating is fixed in the said differential casing in the back, said half front axle engaging gear, later half be coupling close gear respectively with said half front axle gear, the rotating installing of back differential gear;
Said half front axle, back semiaxis close gear and are connected through the spline mode with said half front axle engaging gear, later half being coupling respectively.
2. the transfer case of limited slip differential in the middle of having according to claim 1 is characterized in that said the 3rd modiolus and the 4th modiolus be at least two, uniform vertically be installed in the said first semiaxis worm gear and the second semiaxis worm gear around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100898355A CN102734422A (en) | 2011-04-08 | 2011-04-08 | Transfer case equipped with a center limited slip differential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100898355A CN102734422A (en) | 2011-04-08 | 2011-04-08 | Transfer case equipped with a center limited slip differential |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734422A true CN102734422A (en) | 2012-10-17 |
Family
ID=46990470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100898355A Pending CN102734422A (en) | 2011-04-08 | 2011-04-08 | Transfer case equipped with a center limited slip differential |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734422A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067940A1 (en) * | 2011-11-10 | 2013-05-16 | Han Changli | Mechanical locking anti-slipping differential |
| CN104061302A (en) * | 2014-06-25 | 2014-09-24 | 江铃汽车股份有限公司 | Transmission system used for electric vehicle |
| CN108458063A (en) * | 2018-05-18 | 2018-08-28 | 长沙桑铼特农业机械设备有限公司 | A kind of transfer case and tractor |
| CN110744132A (en) * | 2019-11-06 | 2020-02-04 | 台州陆霸机电科技有限公司 | Electric cutting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6074322A (en) * | 1996-10-16 | 2000-06-13 | Fleytman; Yakov | Apparatus for transmitting rotation utilizing an oscillating input |
| CN2527785Y (en) * | 2002-04-27 | 2002-12-25 | 新疆升晟股份有限公司 | Four-wheel differential speed transfer device driven by a differential speed device |
| US20050054471A1 (en) * | 2003-09-08 | 2005-03-10 | Yakov Fleytman | Drive axle assembly and differential |
| CN2772878Y (en) * | 2005-02-22 | 2006-04-19 | 沈阳天菱机械有限责任公司 | Axle-base and speed-differential transfer case |
| CN202091460U (en) * | 2011-04-08 | 2011-12-28 | 王小刚 | Transfer case equipped with center antislip differential |
-
2011
- 2011-04-08 CN CN2011100898355A patent/CN102734422A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6074322A (en) * | 1996-10-16 | 2000-06-13 | Fleytman; Yakov | Apparatus for transmitting rotation utilizing an oscillating input |
| CN2527785Y (en) * | 2002-04-27 | 2002-12-25 | 新疆升晟股份有限公司 | Four-wheel differential speed transfer device driven by a differential speed device |
| US20050054471A1 (en) * | 2003-09-08 | 2005-03-10 | Yakov Fleytman | Drive axle assembly and differential |
| CN2772878Y (en) * | 2005-02-22 | 2006-04-19 | 沈阳天菱机械有限责任公司 | Axle-base and speed-differential transfer case |
| CN202091460U (en) * | 2011-04-08 | 2011-12-28 | 王小刚 | Transfer case equipped with center antislip differential |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067940A1 (en) * | 2011-11-10 | 2013-05-16 | Han Changli | Mechanical locking anti-slipping differential |
| CN104061302A (en) * | 2014-06-25 | 2014-09-24 | 江铃汽车股份有限公司 | Transmission system used for electric vehicle |
| CN108458063A (en) * | 2018-05-18 | 2018-08-28 | 长沙桑铼特农业机械设备有限公司 | A kind of transfer case and tractor |
| CN108458063B (en) * | 2018-05-18 | 2024-04-26 | 长沙桑铼特农业机械设备有限公司 | Transfer case and tractor |
| CN110744132A (en) * | 2019-11-06 | 2020-02-04 | 台州陆霸机电科技有限公司 | Electric cutting machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20160608 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |