CN204004278U - Planetary gear type four-wheel drive vehicle interaxial differential - Google Patents
Planetary gear type four-wheel drive vehicle interaxial differential Download PDFInfo
- Publication number
- CN204004278U CN204004278U CN201420415483.7U CN201420415483U CN204004278U CN 204004278 U CN204004278 U CN 204004278U CN 201420415483 U CN201420415483 U CN 201420415483U CN 204004278 U CN204004278 U CN 204004278U
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- forerunner
- gear
- guard
- gear ring
- planet wheel
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Abstract
Planetary gear type four-wheel drive vehicle interaxial differential, in its casing, be provided with driving shaft, driving shaft one end is installed in gear type gear ring, and the other end is installed in rear driving mechanical axis, forerunner's gear set is on front wheel driving mechanical axis, and forerunner's gear and gear type gear ring mesh; Control Shaft is arranged in casing, controls bevel gear and is installed on Control Shaft, and the forerunner's gear ring and the forerunner that are arranged on driving shaft bore gear ring, rear-guard cone gear ring and rear-guard gear ring about Control Shaft symmetry; Forerunner's planet wheel supporting component is identical with rear-guard planet wheel supporting component structure, the integrated sun gear of forerunner and the integrated sun gear of rear-guard are integrated on driving shaft, forerunner's planet wheel is by circumferential uniform being installed on gear type gear ring of forerunner's planet wheel supporting component, and forerunner's planet wheel simultaneously and forerunner's gear ring, the integrated sun gear engagement of forerunner; Adopt planetary gear mechanism to have deceleration concurrently as shaft space difference speed, effectively reduced ransaxle size, be conducive to improve the vehicle chassis ground Clearance, strengthen adhesion.
Description
Technical field
The utility model relates to automobile variable speed technical field, relates in particular to a kind of planetary gear type four-wheel drive vehicle interaxial differential.
Background technique
At present vehicular four wheels drives and mainly contains AWD, three kinds of 4 wheel driven and time sharings in good time; Wherein, AWD mainly be take employing Torsen interaxial differential as main, and because Torsen differential mechanism can not make coupling shaft two ends separately, the vehicle that this differential mechanism is installed can only be always in 4 wheel driven state, although vehicle to pass through performance good, but fuel economy is poor, and because this mechanism has anti-slip differential function concurrently, thereby extensively adopted by luxurious offroad vehicle; And 4 wheel driven adopts computer to control in good time, can realize the function of AWD according to pavement behavior timely adjustment 4 wheel driven mode, but this train of mechanism is complicated, response lag, is widely used in intermediate offroad vehicle; Time sharing needs manual switching, is progressively eliminated.In recent years, development along with electronic control technology, many luxurious offroad vehicle brands progressively strengthen electronic control technology are applied, yet in current AWD, in good time 4 wheel driven and time sharing, interaxial differential only only has differential action, main deceleration still realizes in ransaxle, and offroad vehicle has higher requirement to the chassis ground Clearance.Therefore reducing on the basis of main reducing gear size, improving the vehicle chassis ground Clearance, strengthen adhesion, improving trafficability and become those skilled in the art's major issue urgently to be resolved hurrily.
Model utility content
The technical problem that the utility model solves is to provide a kind of planetary gear type four-wheel drive vehicle interaxial differential, to solve the shortcoming in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
Planetary gear type four-wheel drive vehicle interaxial differential, comprise casing, wherein, in casing, be provided with driving shaft, driving shaft one end is installed in gear type gear ring, the other end is installed in rear driving mechanical axis, and gear type gear ring is installed in casing, rear driving mechanical axis is installed in end cap, front wheel driving mechanical axis is installed in casing, forerunner's gear set is on front wheel driving mechanical axis, and the engagement of the outer gear of forerunner's gear and gear type gear ring, by the transmission of power of gear type gear ring to forerunner's gear, forerunner's gear drives the rotation of front wheel driving mechanical axis to output power to front drive axle by spline again, forerunner's outside framework oil seal is installed in casing, forerunner's outside framework oil seal is set on front wheel driving mechanical axis, dynamic rotary sealing for front wheel driving mechanical axis is provided with the rear-guard outside framework oil seal for the sealing of rear driving mechanical axis dynamic rotary simultaneously in end cap, and rear-guard outside framework oil seal is set on rear driving mechanical axis, Control Shaft is arranged in casing, controlling bevel gear is installed on Control Shaft, and the forerunner's gear ring and the forerunner that are arranged on driving shaft bore gear ring, rear-guard cone gear ring and rear-guard gear ring about Control Shaft symmetry, and control bevel gear and bore gear ring, the engagement of rear-guard cone gear ring with forerunner simultaneously, in addition, forerunner's planet wheel supporting component is identical with rear-guard planet wheel supporting component structure, the integrated sun gear of forerunner and the integrated sun gear of rear-guard are integrated on driving shaft, forerunner's planet wheel is by circumferential uniform being installed on gear type gear ring of forerunner's planet wheel supporting component, and forerunner's planet wheel meshes with the integrated sun gear of inner ring gear, forerunner of forerunner's gear ring simultaneously, rear-guard planet wheel is by circumferential uniform being installed on rear driving mechanical axis of rear-guard planet wheel supporting component, and rear-guard planet wheel meshes with the integrated sun gear of inner ring gear, rear-guard of rear-guard gear ring simultaneously.
In the utility model, between driving shaft and gear type gear ring, bearing nine is installed, between driving shaft and rear driving mechanical axis, bearing ten is installed, and bearing nine, bearing ten are all for unloading axial force.
In the utility model, forerunner's gear ring and forerunner bore gear ring riveted joint and are integrated, and are installed on driving shaft by bearing, and rear-guard cone gear ring and the riveted joint of rear-guard gear ring are integrated, and are installed on driving shaft by bearing.
In the utility model, Control Shaft is installed in casing by bearing, and by controlling end cap position limiting sealed.
In the utility model, the snap ring five for axial limiting is installed in end cap.
In the utility model, outside framework oil seal is installed in casing, outside framework oil seal is set on driving shaft, for the dynamic rotary sealing of driving shaft.
In the utility model, end cap is installed and is passed through end cap clamping bolt with casing cooperation and is connected fastening.
In the utility model, on front wheel driving mechanical axis, be provided with for forerunner's gear is carried out to spacing snap ring two.
In the utility model, forerunner's planet wheel supporting component comprises assembly sliding bearing, assembly screw and assembly back-up ring, assembly sliding bearing interference fit is installed in forerunner's planet wheel, forerunner's planet wheel is set on assembly screw and is dallied by assembly sliding bearing, assembly screw one end is installed on Control Shaft by screw threads for fastening, the other end is set with assembly back-up ring, for the axial limiting to forerunner's planet wheel.
In the utility model, without normal vehicle operation under the effect of external motion resistance, driving shaft is externally rotated counterclockwise under the driving of power, and drives forerunner's planet wheel to rotate by the integrated sun gear of forerunner, by the integrated sun gear of rear-guard, drives rear-guard planet wheel to rotate; And under the effect that has external motion resistance, forerunner's planet wheel by riveting portion to controlling the bevel gear trend that has certain effect, and rear-guard planet wheel by riveting portion to controlling the bevel gear trend that also has certain effect, now, two effect trend are contrary, when effect equal and opposite in direction, control bevel gear and keep relatively static, forerunner's planet wheel and the output of rear-guard planet wheel indifferential power, when effect is differed in size, control bevel gear and produce relative movement, the power of one end is flowed to the other end, to realize shaft space difference speed.
The concrete motion mode of shaft space difference speed is: power is inputted rear portion through the wheeled gear ring of forerunner's planet wheel driving gear through driving shaft, and by forerunner's gear by transmission of power to front drive axle part, another part drives rear driving mechanical axis through rear-guard planet wheel, and by the spline on rear driving mechanical axis by transmission of power to back driving axle part; When driving shaft, with rated speed, the angular velocity by the wheeled gear ring of forerunner's planet wheel driving gear is greater than gear type gear ring end outside and travels while feeding back to the angular velocity of differential mechanism front wheel driving mechanical axis, forerunner travels and takes turns and will drive control bevel gear rotate by forerunner's planet wheel supporting component, and the rotation of controlling bevel gear will speed up the driving of rear-guard planet wheel to rear driving mechanical axis, be that driving shaft drives the angular velocity of rear driving mechanical axis to increase with rated speed, to increase the driving that rear-guard is travelled and taken turns; Otherwise, driving shaft drives the angular velocity of rear driving mechanical axis to be greater than rear driving mechanical axis end outside with rated speed by rear-guard planet wheel and travels while feeding back to the angular velocity of differential mechanism rear driving mechanical axis, rear-guard travels and takes turns transmission of power to controlling bevel gear, the driving of the Spin-up forerunner planet wheel of control bevel gear to gear type gear ring, be that driving shaft is with the angular velocity increase of the wheeled gear ring of rated speed driving gear, to increase the driving of wheel of travelling to forerunner, and then realize forerunner's travel motivational drive between centers differential of wheel of wheel and rear-guard that travels.
Beneficial effect: the utility model adopts planetary gear mechanism as shaft space difference speed, planetary gears has deceleration concurrently, and under comparable size, reduction speed ratio is large, in the situation that transmission system total reduction ratio is constant, reduce ransaxle size, be conducive to improve the vehicle chassis ground Clearance, strengthen adhesion, improve passing ability.
Accompanying drawing explanation
Fig. 1 is the structural representation of preferred embodiment of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the right elevation of Fig. 1.
Fig. 4 is A-A place sectional view in Fig. 1.
Fig. 5 is forerunner's planet wheel supporting component and rear-guard planet wheel supporting component structural representation in preferred embodiment of the present utility model.
Fig. 6 is the concrete use schematic diagram of preferred embodiment of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Planetary gear type four-wheel drive vehicle interaxial differential referring to Fig. 1~Fig. 5, comprises forerunner's planet wheel supporting component 1, end cap clamping bolt 2, end cap 3, snap ring 1, forerunner's outside framework oil seal 5, forerunner's gear 6, snap ring 27, outside framework oil seal 8, driving shaft 9, gear type gear ring 10, bearing 1, bearing 2 12, Control Shaft 13, rear-guard planet wheel 14, rear-guard planet wheel supporting component 15, bearing 3 16, bearing 4 17, rear driving mechanical axis 18, rear-guard outside framework oil seal 19, casing 20, fastening screw trip bolt 21, bearing 5 22, forerunner's planet wheel 23, the integrated sun gear 24 of forerunner, snap ring 3 25, bearing 6 26, bearing 7 27, snap ring 4 28, the integrated sun gear 29 of rear-guard, control end cap 30, snap ring 5 31, snap ring 6 32, bearing 8 33, front wheel driving mechanical axis 34, bearing 9 35, bearing 10, forerunner's gear ring 37, rivet 1, forerunner bores gear ring 39, rear-guard cone gear ring 40, rear-guard gear ring 41, rivet 2 42, control bevel gear 43, assembly sliding bearing 1-1, assembly screw 1-2, assembly back-up ring 1-3.
In the present embodiment, driving shaft 9 one end are installed in gear type gear ring 10 by bearing 2 12, the other end is installed in rear driving mechanical axis 18 by bearing 3 16, gear type gear ring 10 is installed in casing 20 by bearing 1, rear driving mechanical axis 18 is installed in end cap 3 by bearing 4 17, between driving shaft 9 and gear type gear ring 10, bearing 9 35 is installed, between driving shaft 9 and rear driving mechanical axis 18, bearing 10 is installed, and bearing 9 35, bearing 10 is all for unloading axial force, end cap 3 is installed and is passed through end cap clamping bolt 2 with casing 20 cooperations and is connected fastening, front wheel driving mechanical axis 34 is installed in casing 20 by bearing 8 33, forerunner's gear 6 is set on front wheel driving mechanical axis 34 also spacing by snap ring 27, and forerunner's gear 6 meshes with the outer gear of gear type gear ring 10, by the transmission of power of gear type gear ring 10 to forerunner's gear 6, forerunner's gear 6 drives 34 rotations of front wheel driving mechanical axis to output power to front drive axle by spline again, in end cap 3, be provided with that snap ring 5 31, snap ring 27 are installed on front wheel driving mechanical axis 34, snap ring 1 is installed in casing 20, all for axial limiting, outside framework oil seal 8 is installed in casing 20, be set on driving shaft 9 simultaneously, dynamic rotary sealing for driving shaft 9, forerunner's outside framework oil seal 5 is installed in casing 20, be set on front wheel driving mechanical axis 34 simultaneously, dynamic rotary sealing for front wheel driving mechanical axis 34, rear-guard outside framework oil seal 19 is installed in end cap 3, be set on rear driving mechanical axis 18, for the dynamic rotary sealing of rear driving mechanical axis 18 simultaneously,
Forerunner's gear ring 37 is bored gear ring 39 with forerunner and is integrated by rivet one 38 riveted joints, and be installed on driving shaft 9 by bearing 6 26, rear-guard cone gear ring 40 and rear-guard gear ring 41 are integrated by rivet 2 42 riveted joints, and be installed on driving shaft 9 by bearing 7 27, controlling bevel gear 43 is installed on Control Shaft 13, Control Shaft 13 is installed in casing 20 by bearing 5 22, and by by fastening control end cap 30 position limiting sealeds that are installed on casing 20 of fastening screw trip bolt 21, forerunner's gear ring 37 that riveted joint is integrated, forerunner bores gear ring 39 and rear-guard cone gear ring 40, rear-guard gear ring 41 is installed about Control Shaft 13 is symmetrical, and the control bevel gear 43 being installed on Control Shaft 13 is bored gear ring 39 with forerunner simultaneously, 40 engagements of rear-guard cone gear ring, being installed on bearing 6 26 on driving shaft 9, to pass on left snap ring 3 25 spacing, bearing 7 27 right sides that are installed on driving shaft 9 are spacing by snap ring 4 28.
The integrated sun gear 24 of forerunner is integrated on driving shaft 9 with the integrated sun gear 29 of rear-guard, forerunner's planet wheel 23 is by circumferential uniform being installed on gear type gear ring 10 of forerunner's planet wheel supporting component 1, and forerunner's planet wheel 23 meshes with the integrated sun gear 24 of inner ring gear, forerunner of forerunner's gear ring 37 simultaneously, rear-guard planet wheel 14 is by circumferential uniform being installed on rear driving mechanical axis 18 of rear-guard planet wheel supporting component 15, and rear-guard planet wheel 14 meshes with the integrated sun gear 29 of inner ring gear, rear-guard of rear-guard gear ring 41 simultaneously.
In forerunner's planet wheel supporting component 1, assembly sliding bearing 1-1 interference fit is installed in forerunner's planet wheel 23, forerunner's planet wheel 23 is set in the upper idle running of assembly screw 1-2 by assembly sliding bearing 1-1, assembly screw 1-2 one end is installed on Control Shaft 13 by screw threads for fastening, and the other end is set with assembly back-up ring 1-3 for the axial limiting to forerunner's planet wheel 23; Rear-guard planet wheel supporting component 15 structures are consistent with forerunner's planet wheel supporting component 1.
Shown in Figure 6, front drive axle is consistent with back driving axle structure, and forerunner's wheel that travels is less than the rear-guard wheel that travels, and differential mechanism travels and normally travels and have without differential the velocity ratio mating while taking turns in front drive axle and back driving axle driven, as pressed in Fig. 1 as shown in C direction, driving shaft 9 is externally rotated counterclockwise under the driving of power, by the integrated sun gear 24 of forerunner, drive 23 rotations of forerunner's planet wheel, by the integrated sun gear 29 of rear-guard, drive 14 rotations of rear-guard planet wheel, under the effect that has external motion resistance, forerunner's planet wheel 23 by riveting portion to controlling bevel gear 43 trend that has certain effect, and rear-guard planet wheel 14 by riveting portion to controlling bevel gear 43 trend that also has certain effect, and these two effect trend are contrary, so when normal vehicle operation, power is inputted rear portions through the wheeled gear ring 10 of forerunner's planet wheel 23 driving gear through driving shaft 9, and drive front wheel driving mechanical axis 34 to rotate transmission of power to front drive axle part by forerunner's gear 6, another part drives rear driving mechanical axis 18 through rear-guard planet wheel 14, and by the internal spline on rear driving mechanical axis 18 by transmission of power to back driving axle part, concrete running state is as follows: suppose
Control bevel gear 43 relatively static, driving shaft 9 passes through the angular velocity of the wheeled gear ring 10 of forerunner's planet wheel 23 driving gear: ω with rated speed
1;
The travel angular velocity of the gear type gear ring 10 that feeds back to differential mechanism of gear type gear ring 10 end outsides is: ω
2;
Control bevel gear 43 relatively static, driving shaft 9 drives the angular velocity of rear driving mechanical axis 18: ω by rear-guard planet wheel 14 with rated speed
3;
The travel angular velocity of the rear driving mechanical axis 18 that feeds back to differential mechanism of rear driving mechanical axis 18 end outsides is: ω
4;
When forerunner travels to take turns, be subject to external influence and impel ω
2< ω
1time, forerunner's planet wheel 23 drives power to control bevel gear 43 rotations by forerunner's planet wheel supporting component 1, and the rotation of controlling bevel gear 43 will speed up the driving of 14 pairs of rear driving mechanical axis 18 of rear-guard planet wheel, i.e. ω
3become large, to increase the driving that rear-guard is travelled and taken turns; Otherwise, when rear-guard travels to take turns, be subject to external influence and impel ω
4< ω
3time, rear-guard planet wheel 14 certainly will be given transmission of power to control bevel gear 43, and the rotation of controlling bevel gear 43 will speed up the driving of 23 pairs of gear type gear rings 10 of forerunner's planet wheel, i.e. ω
1become large, to increase the driving that forerunner is travelled and taken turns, from realizing front and back motivational drive between centers differential.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. planetary gear type four-wheel drive vehicle interaxial differential, comprise casing, it is characterized in that, be provided with driving shaft in casing, driving shaft one end is installed in gear type gear ring, the other end is installed in rear driving mechanical axis, and gear type gear ring is installed in casing, rear driving mechanical axis is installed in end cap, and front wheel driving mechanical axis is installed in casing, forerunner's gear set is on front wheel driving mechanical axis, and the engagement of the outer gear of forerunner's gear and gear type gear ring; Control Shaft is arranged in casing, controlling bevel gear is installed on Control Shaft, and the forerunner's gear ring and the forerunner that are arranged on driving shaft bore gear ring, rear-guard cone gear ring and rear-guard gear ring about Control Shaft symmetry, and control bevel gear and bore gear ring, the engagement of rear-guard cone gear ring with forerunner simultaneously; In addition, forerunner's planet wheel supporting component is identical with rear-guard planet wheel supporting component structure, the integrated sun gear of forerunner and the integrated sun gear of rear-guard are integrated on driving shaft, forerunner's planet wheel is by circumferential uniform being installed on gear type gear ring of forerunner's planet wheel supporting component, and forerunner's planet wheel meshes with the integrated sun gear of inner ring gear, forerunner of forerunner's gear ring simultaneously, rear-guard planet wheel is by circumferential uniform being installed on rear driving mechanical axis of rear-guard planet wheel supporting component, and rear-guard planet wheel meshes with the integrated sun gear of inner ring gear, rear-guard of rear-guard gear ring simultaneously.
2. planetary gear type four-wheel drive vehicle interaxial differential according to claim 1, is characterized in that, outside framework oil seal is installed in casing, and outside framework oil seal is set on driving shaft.
3. planetary gear type four-wheel drive vehicle interaxial differential according to claim 1, is characterized in that, forerunner's outside framework oil seal is installed in casing, and forerunner's outside framework oil seal is set on front wheel driving mechanical axis.
4. planetary gear type four-wheel drive vehicle interaxial differential according to claim 1, is characterized in that, is provided with the rear-guard outside framework oil seal for the sealing of rear driving mechanical axis dynamic rotary in end cap, and rear-guard outside framework oil seal is set on rear driving mechanical axis.
5. planetary gear type four-wheel drive vehicle interaxial differential according to claim 1, is characterized in that, is provided with for forerunner's gear is carried out to spacing snap ring on front wheel driving mechanical axis.
6. planetary gear type four-wheel drive vehicle interaxial differential according to claim 1, it is characterized in that, forerunner's planet wheel supporting component comprises assembly sliding bearing, assembly screw and assembly back-up ring, assembly sliding bearing interference fit is installed in forerunner's planet wheel, forerunner's planet wheel is set on assembly screw by assembly sliding bearing, assembly screw one end is installed on Control Shaft by screw threads for fastening, and the other end is set with assembly back-up ring.
7. planetary gear type four-wheel drive vehicle interaxial differential according to claim 1, is characterized in that, forerunner's gear ring and forerunner bore gear ring riveted joint and be integrated, and are installed on driving shaft by bearing.
8. planetary gear type four-wheel drive vehicle interaxial differential according to claim 1, is characterized in that, rear-guard cone gear ring and the riveted joint of rear-guard gear ring are integrated, and are installed on driving shaft by bearing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420415483.7U CN204004278U (en) | 2014-07-25 | 2014-07-25 | Planetary gear type four-wheel drive vehicle interaxial differential |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420415483.7U CN204004278U (en) | 2014-07-25 | 2014-07-25 | Planetary gear type four-wheel drive vehicle interaxial differential |
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CN204004278U true CN204004278U (en) | 2014-12-10 |
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ID=52044281
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Application Number | Title | Priority Date | Filing Date |
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CN201420415483.7U Withdrawn - After Issue CN204004278U (en) | 2014-07-25 | 2014-07-25 | Planetary gear type four-wheel drive vehicle interaxial differential |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104088979A (en) * | 2014-07-25 | 2014-10-08 | 湖南农业大学 | Planetary gear type inter-axle differential for four-wheel drive automobile |
CN108443495A (en) * | 2018-05-18 | 2018-08-24 | 湖南农业大学 | A kind of four-wheel-drive transfer case of differential and differential locking |
-
2014
- 2014-07-25 CN CN201420415483.7U patent/CN204004278U/en not_active Withdrawn - After Issue
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104088979A (en) * | 2014-07-25 | 2014-10-08 | 湖南农业大学 | Planetary gear type inter-axle differential for four-wheel drive automobile |
CN108443495A (en) * | 2018-05-18 | 2018-08-24 | 湖南农业大学 | A kind of four-wheel-drive transfer case of differential and differential locking |
CN108443495B (en) * | 2018-05-18 | 2024-04-05 | 湖南农业大学 | Differential and differential locking four-wheel drive transfer case |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20150325 |
|
RGAV | Abandon patent right to avoid regrant |