CN2644770Y - Viscous coupling capable of torque dynamic allocation in drive unit of four-driving vehicle - Google Patents
Viscous coupling capable of torque dynamic allocation in drive unit of four-driving vehicle Download PDFInfo
- Publication number
- CN2644770Y CN2644770Y CN 03277585 CN03277585U CN2644770Y CN 2644770 Y CN2644770 Y CN 2644770Y CN 03277585 CN03277585 CN 03277585 CN 03277585 U CN03277585 U CN 03277585U CN 2644770 Y CN2644770 Y CN 2644770Y
- Authority
- CN
- China
- Prior art keywords
- viscous coupling
- sheet
- external splines
- internal spline
- housing
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- 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 - Lifetime
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- 230000008878 coupling Effects 0.000 title claims abstract description 44
- 238000010168 coupling process Methods 0.000 title claims abstract description 44
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 44
- 229920002545 silicone oil Polymers 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 241000153246 Anteros Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The utility model discloses a viscous coupling of the transmission system four wheel driving vehicle transmission system that can control dynamic distribution of the torque. The viscous coupling is arranged in a transmission mechanism between a front bridge and a rear bridge of a four-wheel drive vehicle. The viscous coupling comprises an inner spline plate and an outer spline plate alternatively arranged in a sealed space formed by a casing and a hub as well as steel wires between the inner spline plate and the outer spline plate, and silicone oil with excellent physical and chemical properties is injected in a cavity as working medium. The utility model adopts a viscous coupling, which transmits driving dynamic with an oil-shear. As the vehicle moves in any circumstances, the coupling works. According to the movements of the front and the rear wheels, the viscous coupling distributes torque to the front and rear driving wheels automatically. Without rigid connection, the utility model reduces rolling resistance and fuel consumption, increases the economy of fuel, restricts the tyre slip and reduces the wear of the tyre.
Description
Technical field
The utility model relates to four-wheel driven car power train manufacturing technology field, relates to the device that can carry out dynamic assignment in a kind of four-wheel driven car power train to moment of torsion in particular.
Background technique
Preceding 4 wheel driven go-anywhere vehicle adopts differential mechanism to realize the power distribution of antero posterior axis, when the speed discrepancy of antero posterior axis reaches a certain numerical value, the differential mechanism locking, antero posterior axis is rigidly connected, though can improve the cross-country ability of automobile, also increase the power loss and the aggravation Tyte Wear of motor simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is to set up the device that can carry out dynamic assignment to moment of torsion in the four-wheel driven car power train, improves the fuel-economy type of motor, and reduces Tyte Wear.
The technical solution of the utility model is design like this, in the driving mechanism before and after four-wheel driven car between the bridge viscous coupling is set, viscous coupling is the internal spline sheet of alternately arranging by in the seal space that housing and interior hub constitute, external splines sheet and the wire spring that is clipped between the interior external splines sheet are formed, inject in the cavity and have the silicone oil of good physicochemical properties as working medium, on the internal spline sheet internal spline is arranged, link to each other with the external splines on the interior hub, the external splines sheet has external splines, link to each other with the internal spline on the housing, the internal spline sheet, gap between the external splines sheet is guaranteed by the wire spring between the external splines sheet in being clipped in, process porose or groove separately on the interior external splines sheet, moment of torsion by gearbox output, a part drives the viscous coupling housing, a part drives hub in the viscous coupling, the viscous coupling housing connects rear axle propeller shaft again, interior hub connects front axle propeller shaft, shell is by the end cap capping of press fit, interior hub has the rubber seal sealing in two " X " cross sections, can relatively rotate between interior hub and the housing.
Above-mentioned viscous coupling front can be provided with a differential mechanism.Increase the performance of viscous coupling.
Above-mentioned differential mechanism can be arranged in the gearbox.
Above-mentioned differential mechanism can be arranged on outside the gearbox.
The utility model is owing to adopted viscous coupling, viscous coupling is to utilize oil-shear to come transfer motion power, the gap of the density of viscous coupling torque transmitted and silicone oil, viscosity, speed discrepancy, internal spline sheet number, external splines sheet number, the radius of interior external splines sheet, interior external splines sheet is relevant, the speed discrepancy of input shaft and output shaft is big more, and the torque that is delivered to output shaft by input shaft is just big more.Automobile travels under any state, and coupling all participates in work.The external splines sheet is sheared the oil film transmitting torque in utilizing, so do not have machinery wearing and tearing, long service life between the spline sheet.Viscous coupling also allows input shaft and output shaft that speed discrepancy is arranged except that transmitting torque.Speed discrepancy increases, and showing trackslips between front-wheel or trailing wheel and ground is increasing.The viscosity shaft joint can be given the front and back driving wheel according to the automatic distribution of torque of the situation of front and back wheels.Owing to be not rigidly connected, reduced rolling resistance and fuel consumption, improved fuel economy, limited trackslipping of tire simultaneously, reduced Tyte Wear.When the slippage of viscosity shaft joint internal spline sheet is very big, oily temperature rise, oil pressure increases." peak value " phenomenon can appear.Automatically compress no slippage between interior external splines sheet, seemingly be rigidly connected, improved the performance of passing through of vehicle.Because four-wheel drive vehicle had viscous coupling, so when on good road, running at high speed, reflect that automobile has good control stability, driving safety and braking ability, has improved the rideability of automobile.
Description of drawings
Fig. 1 is front drive axle power plant schematic representation;
Fig. 2 is the viscous coupling structural representation.
Among the figure: 1, gearbox, 2, motor, 3, mean differential, 4, viscous coupling, 5, the accurate double sided gear of propons, 6, front axle differential, 7, transfer case, 401, viscous coupling housing, 402, viscous coupling lid, 403, the external splines sheet, 404, internal spline sheet, 405, wire spring, 406, interior hub, 407, oil sealing.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Embodiment
Mean differential 3 is located in the gearbox 1, and propons hypoid gear 5, front axle differential 6 lump together with viscous coupling 4 and be placed in the transfer case 7.Motor 2 gearbox 1 that is in transmission connection, gearbox 1 mean differential 3 that is in transmission connection, mean differential 3 viscous coupling 4 that is in transmission connection, viscous coupling 4 be in transmission connection respectively front axle differential 6, rear axle differential, front axle differential 6 front driving wheel that is in transmission connection, the rear axle differential rear drive sprocket that is in transmission connection.Viscous coupling 4 cooperates the speed discrepancy between the mean differential 3 adjusting front and back driving wheels.
Above-mentioned viscous coupling 4 is internal spline sheets 404 of alternately arranging by in the seal space that housing 401 and interior hub 406 constitute, external splines sheet 403 and the wire spring 405 that is clipped between the interior external splines sheet are formed, inject in the cavity and have the silicone oil of good physicochemical properties as working medium, on the internal spline sheet 404 internal spline is arranged, link to each other with the external splines on the interior hub 406, external splines sheet 403 has external splines, link to each other with the internal spline on the housing 401, internal spline sheet 404, the gap that the external splines sheet is 403 is guaranteed by the wire spring between the external splines sheet in being clipped in 405, process porose or groove separately on the interior external splines sheet, moment of torsion by mean differential 3 outputs, a part drives viscous coupling housing 401, a part drives hub 406 in the viscous coupling, viscous coupling housing 401 connects the gear ring of the accurate double sided gear 5 of propons again, the gear ring gear shaft of the accurate double sided gear 5 of propons, gear shaft connects rear axle differential.Hub 406 connects front axle differential 6 again in the viscous coupling.Shell is by end cap 402 cappings of press fit, and interior hub 406 has rubber seal oil sealing 407 sealings in two " X " cross sections, can relatively rotate between interior hub 406 and the housing 401.It is that transmission of power is arrived front axle differential 6 that interior hub 406 connects mean differential 3, and it is to back driving axle with transmission of power that shell 401 connects mean differentials 3.
Claims (4)
1, can carry out the viscous coupling of dynamic assignment in a kind of four-wheel driven car power train to moment of torsion, it is characterized in that: viscous coupling is arranged on before and after the four-wheel driven car in the driving mechanism between the bridge, viscous coupling is the internal spline sheet of alternately arranging by in the seal space that housing and interior hub constitute, external splines sheet and the wire spring that is clipped between the interior external splines sheet are formed, inject in the cavity and have the silicone oil of good physicochemical properties as working medium, on the internal spline sheet internal spline is arranged, link to each other with the external splines on the interior hub, the external splines sheet has external splines, link to each other with the internal spline on the housing, the internal spline sheet, gap between the external splines sheet is guaranteed by the wire spring between the external splines sheet in being clipped in, process porose or groove separately on the interior external splines sheet, moment of torsion by gearbox output, a part drives the viscous coupling housing, a part drives hub in the viscous coupling, the viscous coupling housing connects rear axle propeller shaft again, interior hub connects front axle propeller shaft, shell is by the end cap capping of press fit, interior hub has the rubber seal sealing in two " X " cross sections, can relatively rotate between interior hub and the housing.
2, viscous coupling according to claim 1 is characterized in that: above-mentioned viscous coupling front can be provided with a differential mechanism.
3, viscous coupling according to claim 2 is characterized in that: above-mentioned differential mechanism can be arranged in the gearbox.
4, viscous coupling according to claim 2 is characterized in that: above-mentioned differential mechanism can be arranged on outside the gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277585 CN2644770Y (en) | 2003-08-09 | 2003-08-09 | Viscous coupling capable of torque dynamic allocation in drive unit of four-driving vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277585 CN2644770Y (en) | 2003-08-09 | 2003-08-09 | Viscous coupling capable of torque dynamic allocation in drive unit of four-driving vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2644770Y true CN2644770Y (en) | 2004-09-29 |
Family
ID=34302891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277585 Expired - Lifetime CN2644770Y (en) | 2003-08-09 | 2003-08-09 | Viscous coupling capable of torque dynamic allocation in drive unit of four-driving vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2644770Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094905A (en) * | 2011-01-28 | 2011-06-15 | 任宇 | Pressure transmission sealing coupler |
-
2003
- 2003-08-09 CN CN 03277585 patent/CN2644770Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094905A (en) * | 2011-01-28 | 2011-06-15 | 任宇 | Pressure transmission sealing coupler |
| CN102094905B (en) * | 2011-01-28 | 2012-11-07 | 任宇 | Pressure transmission sealing coupler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SAIC CHERY AUTOMOBILE CO., LTD. Free format text: FORMER NAME OR ADDRESS: SAIC CHERY AUTOMOBILE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 8, Changchun Road, Wuhu economic and Technological Development Zone, Anhui, Wuhu Province: 241002 Patentee after: Saic Chery Automobile Co., Ltd. Address before: No. 8, Changchun Road, Wuhu economic and Technological Development Zone, Anhui, Wuhu Province: 241002 Patentee before: Qirui Automobile Co., Ltd., Shangqi Group |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130809 Granted publication date: 20040929 |