CN2759827Y - Differential mechanism in driving system of four-wheel vehicle - Google Patents
Differential mechanism in driving system of four-wheel vehicle Download PDFInfo
- Publication number
- CN2759827Y CN2759827Y CN 200420055001 CN200420055001U CN2759827Y CN 2759827 Y CN2759827 Y CN 2759827Y CN 200420055001 CN200420055001 CN 200420055001 CN 200420055001 U CN200420055001 U CN 200420055001U CN 2759827 Y CN2759827 Y CN 2759827Y
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- Prior art keywords
- differential
- differential mechanism
- gear
- axle
- interaxle
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- Expired - Fee Related
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- 230000008878 coupling Effects 0.000 claims abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 abstract 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
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Abstract
The utility model discloses a differential mechanism in the transmission system of a four-drive vehicle, which has the advantages of compact structural arrangement and the dynamic assignment of the torque of a front and a back drive axles can be realized effectively. A front axle differential mechanism and a differential mechanism among the axles are mutually arranged into an integral body, a compound differential mechanism transversally arranged at the back part of a gear box is formed, the compound differential mechanism is provided with a left side and a right side gears of the differential mechanism among the axles respectively connected with the left and the right sides of a planetary gear of the differential mechanism among the axles and a stickiness shaft coupling is arranged between the compound differential mechanism and a back axle differential mechanism. The technical scheme of the utility model is used for overcoming the defects that the power transmission of the traditional differential speed is complicated, occupied space is big and torque assignment is not good. The structural arrangement of the differential mechanism is compact, the arrangement space of a chassis system can be increased, the dynamic assignment of torque between the front and the back drive axles can be realized, thereby, the running stability and the passing performance of vehicles are improved.
Description
Technical field:
The utility model relates to 4-wheel driven car transmission system manufacturing technology field, relates to a kind of 4-wheel driven car diff in particular.
Technical background:
At present, the diff that 4-wheel driven car adopts usually mainly is made of front axle differential, interaxle differential and rear-axle differential etc.The characteristic of this diff ubiquity " differential is not poor to be turned round ", this characteristic causes adverse effect for travelling of power actuated vehicle, when being absorbed in mire as single wheel, because adhesive ability is not enough, will produce and skid, at this moment the propulsive effort of opposite side wheel not only can not increase, and reduces on the contrary, causes the tractive force of power actuated vehicle greatly to reduce.
In order to improve the through performance of 4-wheel driven car, between propons, back axle and front and back bridge, anti-skid final drive is installed all, actv. has solved " differential is not poor to be turned round " phenomenon, but adopt this structure to have following defective: 1. this structural dynamic transmission is complicated, it is big to take up room, and has influenced the arrangement space of chassis system greatly; 2. interaxle differential adopts anti-skid final drive, when skidding simultaneously appearred in the wheel of propons or back axle, diff will be forced locked automatically, and this is unfavorable for the dynamic assignment of moment of torsion, cause the drive axle moment of torsion surplus of tyre skidding one side, and the obvious moment of torsion deficiency of opposite side drive axle.
The utility model content:
The purpose of this utility model is to overcome above-mentioned technical deficiency, and the diff in a kind of 4-wheel driven car transmission system is provided, its structural arrangement compactness, the dynamic assignment of drive axle moment of torsion before and after can effectively realizing.
The technical solution of the utility model is: the diff in a kind of 4-wheel driven car transmission system is characterized in that: front axle differential and interaxle differential are made as one mutually, constitute the composite differential of lateral arrangement at the change speed gear box rear portion; Between described composite differential and rear-axle differential, be provided with a viscous coupling.
The upper end of described composite differential links to each other with the gearbox output gear by the main reduction gear driven gear, and right-hand member links to each other with viscous coupling by differential right side gear between bridge, and propons differential axle side gear links to each other with the wheel of the left and right sides by semiaxis.
This uses later-model technical scheme to solve the power transmission complexity for actv., and the big defective that takes up room adopts front axle differential and interaxle differential are designed to one, when realizing normal differential, has increased the arrangement space of chassis system; And adopt anti-skid final drive for interaxle differential, when skidding simultaneously appears in the wheel of propons or back axle, diff will be forced locked automatically, at this moment will be carried out equivalent by the moment of torsion that driving engine produced distributes, reduced the through performance of power actuated vehicle, be provided with a viscous coupling and adopt between composite differential and the rear-axle differential, be meshed with the viscous coupling housing by the interaxle differential right side gear, power is passed through with the media transmission of silicone oil as working medium, can effectively prevent the phenomenon that moment of torsion is distributed by equivalent, realize the dynamic assignment of drive axle moment of torsion.
The technical scheme that the utility model adopted is that composite differential has replaced traditional propons and interaxle differential, makes the differential gear of 4-wheel driven car more compact, has increased the arrangement space of chassis system greatly; The utility model can also effectively solve the not poor phenomenon of turning round of differential, satisfies simultaneously when propons or back axle both sides wheel skid simultaneously, can realize the dynamic assignment of moment of torsion between the forward and backward drive axle, thereby improve vehicle run stability and crossing ability.
Description of drawings:
Fig. 1 is the composite differential structural representation;
Fig. 2 is that front driving axle is arranged scheme drawing.
Fig. 3 is a rear driving axle engine installation scheme drawing;
Fig. 4 is the viscous coupling structural representation.
Among the figure: 1, change speed gear box, 2, driving engine, 3, composite differential, 4, viscous coupling, 5, accurate double sided gear, 6, auxiliary gear box, 7, rear-axle casing, 8, the back axle skew bevel gear, 9, rear-axle differential, 10, front axle differential, 11, interaxle differential, 12, the composite differential housing, 13, the interaxle differential planetary wheel, 14, the main reduction gear driven gear, 15, the front axle differential axle side gear, 16, the front axle differential planetary wheel, 17, the interaxle differential left side gear, 18, the interaxle differential right side gear, 19, the interaxle differential planetary wheel, 20, the viscous coupling housing, 21, end cap, 22, the male splines sheet, 23, the female splines sheet, 24, wire spring, 25, interior hub, 26, the rubber seal oil sealing.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
The specific embodiment:
The explanation that is described further of the utility model in conjunction with the accompanying drawings, the non-limiting specific embodiment is as follows: referring to Fig. 1, composite differential 3 disclosed in the utility model, it comprises that main reduction gear driven gear 14 and composite differential differential casing 12 are solidified as a whole by Luo bolt Luo, composite differential housing 12 links to each other with interaxle differential planetary wheel 19, interaxle differential planetary wheel 19 left and right sides respectively with interaxle differential left side gear 17, interaxle differential right side gear 18 is meshed, interaxle differential right side gear 18 is meshed with viscous coupling 4, interaxle differential left side gear 17 is meshed with front axle differential planetary wheel 16, and the front axle differential planetary wheel 16 inner left and right sides link to each other with front axle differential axle side gear 15 respectively.
Power transmission route among the embodiment is: drive to change-speed box 1 by driving engine 2, drive to composite differential housing 12 by change-speed box 1, there is composite differential housing 12 to drive to interaxle differential planetary wheel 19, drive to interaxle differential left side gear 17 and interaxle differential right side gear 18 respectively by interaxle differential planetary wheel 19, drive to front axle differential planetary wheel 16 by interaxle differential left side gear 17, drive to front axle differential axle side gear 15 by front axle differential planetary wheel 16, drive to the wheel of propons both sides again through semiaxis; Interaxle differential right side gear 18 drives to viscous coupling 4, drive to accurate double sided gear 5 by viscous coupling 4, drive to the accurate double sided gear 8 of back axle by accurate double sided gear 5, drive to rear-axle differential 9, drive to back axle both sides wheel through rear-axle differential 9 again by the accurate double sided gear 8 of back axle.
Interaxle differential right side gear 18 is meshed with the housing of viscous coupling 4, viscous coupling 4 is female splines sheets 23 of alternately arranging by in the seal cavity that viscous coupling housing 20 and interior hub 25 constitute, male splines sheet 22 and the wire spring 24 that is clipped between the interior male splines sheet are formed, inject in the cavity and have the silicone oil of good physicochemical property as working medium, on the female splines sheet 23 female splines is arranged, link to each other with the male splines on the interior hub 25, male splines sheet 22 has male splines, link to each other with the female splines on the housing 20, female splines sheet 23, the gap that the male splines sheet is 22 is guaranteed by the wire spring between the male splines sheet in being clipped in 24, process porose or groove separately on the interior male splines sheet, moment of torsion by composite differential 3 outputs, a part drives viscous coupling housing 20, and a part drives the front axle differential 10 of composite differential 3 the insides.Viscous coupling housing 20 connects the gear ring of accurate double sided gear 5 again, the gear ring of accurate double sided gear 5 drives driven gear shaft, driven gear shaft is connected with the gear wheel shaft of the accurate double sided gear 8 of back axle on being arranged on rear-axle casing 7 by a transmission shaft, the gear wheel shaft of the accurate double sided gear 8 of back axle drives gear ring, the gear ring rear-axle differential 9 that is in transmission connection.Hub 25 connects composite differential 3 again in the viscous coupling.Shell is by end cap 21 cappings of force fit, and interior hub has rubber seal oil sealing 26 sealings in two " X " cross sections, can relatively rotate between interior hub 25 and the housing 20, thus the dynamic assignment of realization moment of torsion.
Claims (5)
1, the diff in a kind of 4-wheel driven car transmission system, comprise front axle differential (10), interaxle differential (11) and rear-axle differential (9), it is characterized in that: described front axle differential (10) and interaxle differential (11) are made as one, constitute the composite differential (3) of lateral arrangement at the change speed gear box rear portion; Described composite differential (3) is provided with and interaxle differential planetary wheel (13) both sides difference bonded assembly interaxle differential left side gear (17) and interaxle differential right side gear (18); Be provided with a viscous coupling (4) between composite differential (3) and the rear-axle differential (9).
2. the diff in a kind of 4-wheel driven car transmission system as claimed in claim 1 is characterized in that: described interaxle differential left side gear is installed between front axle differential planetary wheel (16) and the interaxle differential planetary wheel (13); Interaxle differential right side gear (18) is installed between interaxle differential planetary wheel (13) and the viscous coupling (4).
3. the diff in a kind of 4-wheel driven car transmission system as claimed in claim 1 is characterized in that: the interior hub (25) of described viscous coupling (4) links to each other with interaxle differential planetary wheel (13).
4. the diff in a kind of 4-wheel driven car transmission system as claimed in claim 1 is characterized in that: viscous coupling housing (20) arrives transmission of power on the rear-axle differential (9) by accurate double sided gear (5) and the accurate double sided gear of back axle (8).
5. the diff in a kind of 4-wheel driven car transmission system as claimed in claim 1 is characterized in that: the main reduction gear driven gear (14) of composite differential and composite differential housing (12) are for being rigidly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055001 CN2759827Y (en) | 2004-12-22 | 2004-12-22 | Differential mechanism in driving system of four-wheel vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055001 CN2759827Y (en) | 2004-12-22 | 2004-12-22 | Differential mechanism in driving system of four-wheel vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2759827Y true CN2759827Y (en) | 2006-02-22 |
Family
ID=36082030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055001 Expired - Fee Related CN2759827Y (en) | 2004-12-22 | 2004-12-22 | Differential mechanism in driving system of four-wheel vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2759827Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1854654A1 (en) * | 2006-05-09 | 2007-11-14 | GKN Driveline Torque Technology KK | Torque transmission apparatus for vehicle |
| CN102287511A (en) * | 2010-06-18 | 2011-12-21 | 贾新成 | Compact automobile four-wheel drive gearbox |
| CN102785571A (en) * | 2012-08-13 | 2012-11-21 | 吴卫东 | Full-time four-wheel drive chassis of small-displacement passenger car |
-
2004
- 2004-12-22 CN CN 200420055001 patent/CN2759827Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1854654A1 (en) * | 2006-05-09 | 2007-11-14 | GKN Driveline Torque Technology KK | Torque transmission apparatus for vehicle |
| CN102287511A (en) * | 2010-06-18 | 2011-12-21 | 贾新成 | Compact automobile four-wheel drive gearbox |
| CN102785571A (en) * | 2012-08-13 | 2012-11-21 | 吴卫东 | Full-time four-wheel drive chassis of small-displacement passenger car |
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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: QIRUI 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: 241009 Patentee after: Saic Chery Automobile Co., Ltd. Address before: No. 8, Changchun Road, Wuhu economic and Technological Development Zone, Anhui, Wuhu Province: 241009 Patentee before: Qirui Automobile Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060222 Termination date: 20121222 |