CN1991212A - Composite differential device for four-drive transmission system - Google Patents
Composite differential device for four-drive transmission system Download PDFInfo
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- CN1991212A CN1991212A CN 200510097333 CN200510097333A CN1991212A CN 1991212 A CN1991212 A CN 1991212A CN 200510097333 CN200510097333 CN 200510097333 CN 200510097333 A CN200510097333 A CN 200510097333A CN 1991212 A CN1991212 A CN 1991212A
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- China
- Prior art keywords
- differential
- differential mechanism
- viscous coupling
- composite
- rear axle
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Abstract
The invention discloses a differential mechanism in transmission system of four wheel driving vehicle, comprising compound differential mechanism and rear axle differential mechanism. The compound differential mechanism comprises inter-axle differential mechanism and front-bridge differential mechanism. The rear axle differential mechanism adopts no-slip differential mechanism. In the technological scheme of invention the whole compound differential mechanism takes a place of separated inter-axle differential mechanism and front-bridge differential mechanism. The technological scheme provided in the invention is set in vehicle gearbox so as to make the chassis structure of four wheel driving vehicle compact. Viscous coupling is set in independent box and the viscous coupling is mated with compound differential mechanism to use. Before dynamic distribution the power of driving bridge can improve the cross-country performance of four wheel driving vehicle.
Description
Technical field
The present invention relates to four-drive transmission system manufacturing technology field, relate to a kind of composite differential device that is used for four-drive transmission system in particular.
Technical background
At present the open differential that adopted of four-wheel driven car is mainly by cross axle, differential gear, bevel planet gear, compositions such as differential carrier.This differential mechanism is " differential is not poor to be turned round " only, and the characteristic of " differential is not poor to be turned round " is brought adverse effect to vehicle driving, when being absorbed in mire as single wheel, because adhesion is not enough, will produces and skid.At this moment the driving force of opposite side wheel not only can not increase, and reduces on the contrary, causes the tractive force of complete machine greatly to reduce.
In order to improve the performance of passing through of four-wheel driven car, between propons, back axle and front and back bridge, differential mechanism is installed all, and preceding rear axle differential is a limited slip differential, effectively solved " differential is not poor to be turned round " phenomenon, but this structural dynamic transmission structure complexity, it is big to take up room, and influences the arrangement space of chassis system; And when the propons differential mechanism adopted limited slip differential, if vehicle side front-wheel loses adhesion, this kind limited slip differential will be locked with differential mechanism, and in a single day differential mechanism temporarily locked, and vehicle has just lost and turned to function, will lead to a disaster when serious.
Summary of the invention
The objective of the invention is to overcome above-mentioned technical deficiency, a kind of compact structure is provided, safe and reliable composite differential device
Technical conceive of the present invention is: a kind of composite differential device that is used for four-drive transmission system, comprise composite differential,, rear axle differential, composite differential comprises mean differential and front axle differential, rear axle differential adopts limited slip differential.
Described composite differential is made up of differential carrier, differential cover, planetary pinion, left side gear, right side gear, differential gear, pad and retainer.
Above-mentioned composite differential is placed in the gearbox, can play the left and right differential of taking turns and play the front and back wheels differential action again.
Be provided with viscous coupling in the above-mentioned transfer case, described viscous coupling one end is connected with gearbox, and the other end is connected with back driving axle, and this differential mechanism and viscous coupling mating reaction can be played the function of dynamic assignment moment of torsion.
The technical solution adopted in the present invention has replaced the mean differential and the front axle differential that separate with the integrated type composite differential, and technological scheme provided by the invention is arranged in the gearbox, can make four-wheel driven car chassis structure compactness like this.Be provided with viscous coupling in the transfer case, viscous coupling and composite differential are used, and the power of ransaxle before and after the dynamic assignment can improve the cross-country ability of four-wheel driven car.
Description of drawings
Fig. 1 is a composite differential structural configuration schematic representation;
Fig. 2 is back driving axle power plant schematic representation;
Fig. 3 is the viscous coupling structural representation.
Among the figure: 1, gearbox, 2, motor, 3, composite differential, 4, viscous coupling, 5, accurate double sided gear, 6, transfer case, 7, rear axle housing, 8, the back axle hypoid gear, 9, rear axle differential, 20, viscous coupling housing, 21, viscous coupling lid, 22, the external splines sheet, 23, internal spline sheet, 24, wire spring, 25, interior hub, 26, oil sealing.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment
A kind of composite differential device that is used for four-drive transmission system comprises composite differential 3, rear axle differential 9 among the embodiment, and rear axle differential adopts limited slip differential.Accurate double sided gear 5 lumps together with viscous coupling 4 and is placed in the transfer case 6, and composite differential 3 is located in the gearbox 1.
Motor 2 gearbox 1 that is in transmission connection, gearbox 1 composite differential 3 that is in transmission connection, composite differential 3 viscous coupling 4 that is in transmission connection, hub is connected with the front axle differential shell of composite differential 3 the insides in the viscous coupling 4, viscous coupling 4 shells are connected with hypoid gear, the rear drive sprocket thereby connection rear axle differential 9, rear axle differential 9 are in transmission connection.Viscous coupling 4 cooperates the speed discrepancy between the composite differential 3 adjusting front and back driving wheels.
Claims (4)
1, the differential mechanism in a kind of four-wheel driven car power train, comprise composite differential,, rear axle differential, it is characterized in that: composite differential comprises mean differential and front axle differential, rear axle differential adopts limited slip differential.
2, differential mechanism according to claim 1 is characterized in that: described composite differential is made up of differential carrier, differential cover, planetary pinion, left side gear, right side gear, differential gear, pad and retainer.
3, differential mechanism according to claim 2 is characterized in that: above-mentioned composite differential is placed in the gearbox, can play the left and right differential of taking turns and play the front and back wheels differential action again.
4, differential mechanism according to claim 3, it is characterized in that: be provided with viscous coupling in the above-mentioned transfer case, described viscous coupling one end is connected with gearbox, and the other end is connected with back driving axle, and this differential mechanism and viscous coupling mating reaction can be played the function of dynamic assignment moment of torsion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200510097333 CN1991212A (en) | 2005-12-31 | 2005-12-31 | Composite differential device for four-drive transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200510097333 CN1991212A (en) | 2005-12-31 | 2005-12-31 | Composite differential device for four-drive transmission system |
Publications (1)
Publication Number | Publication Date |
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CN1991212A true CN1991212A (en) | 2007-07-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 200510097333 Pending CN1991212A (en) | 2005-12-31 | 2005-12-31 | Composite differential device for four-drive transmission system |
Country Status (1)
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CN (1) | CN1991212A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102374288A (en) * | 2010-08-12 | 2012-03-14 | Zf腓德烈斯哈芬股份公司 | Operation method of a transmission device |
-
2005
- 2005-12-31 CN CN 200510097333 patent/CN1991212A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102374288A (en) * | 2010-08-12 | 2012-03-14 | Zf腓德烈斯哈芬股份公司 | Operation method of a transmission device |
CN102374288B (en) * | 2010-08-12 | 2016-03-30 | Zf腓德烈斯哈芬股份公司 | For running the method for transmission device |
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PB01 | Publication | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |