CN104141767A - Planetary-gear type centrifugal friction-slipping-limiting inter-axle differential mechanism for vehicle - Google Patents
Planetary-gear type centrifugal friction-slipping-limiting inter-axle differential mechanism for vehicle Download PDFInfo
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- CN104141767A CN104141767A CN201410360341.XA CN201410360341A CN104141767A CN 104141767 A CN104141767 A CN 104141767A CN 201410360341 A CN201410360341 A CN 201410360341A CN 104141767 A CN104141767 A CN 104141767A
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- driving
- forerunner
- fixing frame
- limit
- planet wheel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a planetary-gear type centrifugal friction-slipping-limiting inter-axle differential mechanism for a vehicle. A driving shaft is arranged in a box, one end of the driving shaft is installed in a front-driving power shaft, the other end of the driving shaft is installed in a rear-driving power shaft, the front-driving power shaft is installed in an end cover, the rear-driving power shaft is installed in the box, a front-driving gear is installed on the front-driving power shaft, a slipping-limiting fixing frame is installed on the driving shaft, and a front-driving integrated sun gear and a rear-driving integrated sun gear are integrated on the driving shaft. In addition, front-driving planet gears are evenly installed on the slipping limiting fixing frame through front-driving planet gear supporting assemblies in the circumferential direction, and rear-driving planet gears are evenly installed on the rear-driving power shaft through rear-driving planet gear supporting assemblies in the circumferential direction. Brake pads are arranged between the slipping-limiting fixing frame and the box. When driving slipping occurs, the brake pads play the friction slipping limiting effect, and the ground clearance of a chassis of the tractor is easily increased; the front-driving transmission ratio and the rear-driving transmission ratio are different, the inter-axle driving differential problem caused by the fact that the sizes of front traveling wheels and rear traveling wheels are not coincident is effectively solved, and the system complexity is reduced.
Description
Technical field
The present invention relates to farm machinery transmission technology field, relate in particular to the sliding vehicle interaxial differential of a kind of planetary gear type centrifugal friction limit.
Background technique
The especially general purpose wheeled tractor of agri-vehicle travels in field conventionally, but because field soil quality is soft, traction is little, for increasing the driving force of tractor, conventionally adopts to strengthen to drive wheel diameter, increase pattern depth or adopt the modes such as four-wheel drive.Wherein, strengthen wheel diameter and can make the steering capability of front-wheel weaken, therefore in order to improve driving force not reducing on tractor steering capability foundation discussion, the common structure of wheel of tractor is that front-wheel is little and trailing wheel is large; The degree of depth that increases tyre tread can be worn and torn along with the use of tire, can not effectively solve the problem of tractor driving kinetic force; And in the time adopting four-wheel drive, must cause to overcome because wheel size differs the problem that front wheel rotation speed is different by design specialized gear, while work in field due to tractor, be prone to drive and skid simultaneously, in order to improve the passing ability of tractor, on tractor, differential lock is forced in configuration conventionally, to adopt manual control mode forced locking differential mechanism in the time occurring that driving wheel skids, so not only reduce working efficiency, and increased the complexity of system operation.
Summary of the invention
Technical problem solved by the invention is to provide a kind of planetary gear type centrifugal friction limit sliding vehicle interaxial differential, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
The sliding vehicle interaxial differential of planetary gear type centrifugal friction limit, comprise casing, wherein, in casing, be provided with driving shaft, driving shaft one end is installed in front wheel driving mechanical axis, the other end is installed in rear driving mechanical axis, and front wheel driving mechanical axis is arranged in end cap, rear driving mechanical axis is installed in casing, forerunner's gear is installed on front wheel driving mechanical axis, and forerunner's outside framework oil seal is installed in front wheel driving mechanical axis, in the time that external impetus axle sleeve is loaded on driving shaft by spline transferring power, forerunner's outside framework oil seal is set on this external impetus axle, plays the effect of dynamic rotary sealing; In casing, be provided with the rear-guard outside framework oil seal for the sealing of rear driving mechanical axis dynamic rotary simultaneously, rear-guard outside framework oil seal is set on rear driving mechanical axis, the sliding fixing frame of limit is installed on driving shaft, and the integrated sun gear of forerunner and the integrated sun gear of rear-guard are integrated on driving shaft; In addition, forerunner's planet wheel supporting component is identical with rear-guard planet wheel supporting component structure, forerunner's planet wheel is by circumferentially uniform being installed on the sliding fixing frame of limit of forerunner's planet wheel supporting component, and forerunner's planet wheel engages with the integrated sun gear of inner ring gear, forerunner of front wheel driving mechanical axis simultaneously, rear-guard planet wheel is by circumferentially uniform being installed on rear driving mechanical axis of rear-guard planet wheel supporting component, and rear-guard planet wheel engages with the integrated sun gear of inner ring gear, rear-guard of the sliding fixing frame of limit simultaneously; And be provided with brake slipper between the sliding fixing frame of limit and casing, and brake slipper is circumferentially uniform along the sliding fixing frame of limit, between brake slipper, connects tension by spring.
In the present invention, the snap ring () for axial limiting is installed in end cap.
In the present invention, end cap outside framework oil seal is also installed in end cap, and end cap outside framework oil seal is set on front wheel driving mechanical axis, for the dynamic rotary sealing of front wheel driving mechanical axis.
In the present invention, end cap is installed and is passed through end cap clamping bolt with casing cooperation and is connected fastening.
In the present invention, on front wheel driving mechanical axis, be provided with for forerunner's gear being carried out to spacing snap ring (two).
In the present invention, forerunner's planet wheel supporting component comprises assembly sliding bearing, assembly screw, 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 the sliding fixing frame of limit 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 present invention, between the sliding fixing frame of limit and casing, be provided with four brake slipper.
In the present invention, brake slipper is installed between the sliding fixing frame of limit and casing by anti-skidding fastener assembly, and anti-skidding fastener assembly comprises fastening screw trip bolt, brake pad support, and brake slipper is set in brake pad support and rotates, and be installed on the sliding fixing frame of limit by fastening screw trip bolt is fastening.
In the present invention, without normal vehicle operation under the effect of external motion resistance, driving shaft is rotated counterclockwise under powered attendant-controlled wheelchairs driving, and drives the rotation of forerunner's planet wheel by the integrated sun gear of forerunner, drives the rotation of rear-guard planet wheel by the integrated sun gear of rear-guard, and under the effect of external motion resistance, forerunner's planet wheel impels the sliding fixing frame of limit to be rotated counterclockwise trend by forerunner's planet wheel supporting component, and rear-guard planet wheel impels the sliding fixing frame of the limit trend that turns clockwise by rear-guard planet wheel supporting component, now, rear-guard planet wheel to the active force of limitting sliding fixing frame with forerunner's planet wheel to limitting the force direction of sliding fixing frame contrary, in the time of active force equal and opposite in direction, the sliding fixing frame of limit keeps relatively static, forerunner's planet wheel and the output of rear-guard planet wheel indifferential power, in the time that active force differs in size, the sliding fixing frame of limit produces relative movement, the power of one end is flowed to the other end, to realize differential.
The concrete motion mode of differential is: power drives front wheel driving mechanical axis through driving shaft input rear portion through forerunner's planet wheel, 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 the angular velocity of front wheel driving mechanical axis to be greater than front wheel driving mechanical axis end outside with rated speed by forerunner's planet wheel, driving shaft travels while feeding back to the angular velocity of differential mechanism front wheel driving mechanical axis, forerunner travels wheel will be by the sliding fixing frame rotation of forerunner's planet wheel supporting component drive limit, and the rotation of the sliding fixing frame of limit will speed up the driving of rear-guard planet wheel to rear driving mechanical axis, being driving shaft drives the angular velocity of rear driving mechanical axis to increase with rated speed, to increase the travel driving of wheel of rear-guard; 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 the sliding fixing frame of limit, the driving of the Spin-up forerunner planet wheel of the sliding fixing frame of limit to front wheel driving mechanical axis, driving shaft drives the angular velocity of front wheel driving mechanical axis to increase with rated speed, with increase to forerunner travel wheel driving, and then realize forerunner travel wheel with rear-guard travel wheel motivational drive differential.
In the present invention, in the time that normal differential drives, the rotational speed of the sliding fixing frame of limit is not enough to make the centrifugal force of brake slipper to overcome spring force to open, when differential mechanism one end, ransaxle is blocked, and the other end ransaxle while occurring skidding in driving process, in the situation that engine power is constant, because driving the moment driving force of skidding sharply to decline, to cause ransaxle moment rotating speed sharply to rise, under the driving of the high driving shaft of rotating speed, the rotating speed of the sliding fixing frame of limit also increases, therefore the centrifugal force that produced impels brake slipper to overcome spring force to open, and brake slipper contacts generation resistance with cabinet wall, to reduce the rotating speed of the sliding fixing frame of limit, be controlled at and set within the scope of limit speed, play the sliding effect of friction limit.
Beneficial effect: before and after the present invention adopts, two rows wait the planetary gears of structural parameter, power is inputted by the sun gear of two groups of planetary gears, forerunner adopts the output of front wheel driving mechanical axis, rear-guard adopts the output of rear driving mechanical axis, to form slowdown type interaxial differential, forerunner's planet carrier and the gear ring of rear-guard are combined to form the sliding fixing frame of limit simultaneously, and on the sliding fixing frame of limit, brake slipper is installed, in the time occurring that driving is skidded, brake slipper produces braking with differential mechanism housing contacts under the effect of centrifugal force, locking interaxial differential plays the sliding effect of friction limit, be conducive to improve the tractor chassis ground Clearance, strengthen adhesion, thereby improve the passing ability of tractor, and increase work efficiency, easy and simple to handle, reduce the complexity of system.
Brief description of the drawings
Fig. 1 is the structural representation of preferred embodiment of the present invention.
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 B-B place sectional view in Fig. 1.
Fig. 6 is forerunner's planet wheel supporting component and rear-guard planet wheel supporting component structural representation in preferred embodiment of the present invention.
Fig. 7 is the concrete use schematic diagram of preferred embodiment of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit of Fig. 1～Fig. 6, comprise forerunner's planet wheel supporting component 1, end cap clamping bolt 2, end cap 3, snap ring (one) 4, end cap outside framework oil seal 5, forerunner's gear 6, snap ring (two) 7, forerunner's outside framework oil seal 8, driving shaft 9, front wheel driving mechanical axis 10, bearing (one) 11, bearing (two) 12, the sliding fixing frame 13 of limit, rear-guard planet wheel 14, rear-guard planet wheel supporting component 15, bearing (three) 16, bearing (four) 17, rear driving mechanical axis 18, rear-guard outside framework oil seal 19, casing 20, anti-skidding fastener assembly 21, fastening screw trip bolt 21-1, brake pad support 21-2, brake slipper (one) 22-1, brake slipper (two) 22-2, brake slipper (three) 22-3, brake slipper (four) 22-4, forerunner's planet wheel 23, the integrated sun gear 24 of forerunner, snap ring (three) 25, bearing (five) 26, bearing (six) 27, the integrated sun gear 28 of rear-guard, spring (one) 29-1, spring (two) 29-2, 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 front wheel driving mechanical axis 10 by bearing (two) 12, the other end is installed in rear driving mechanical axis 18 by bearing (three) 16, front wheel driving mechanical axis 10 is installed in end cap 3 by bearing () 11, rear driving mechanical axis 18 is installed in casing 20 by bearing (four) 17, end cap 3 coordinates and installs and be connected fastening by end cap clamping bolt 2 with casing 20, snap ring (one) 4 is installed in end cap 3, for axial limiting, end cap outside framework oil seal 5 is installed in end cap 3, be set on front wheel driving mechanical axis 10 simultaneously, for the dynamic rotary sealing of front wheel driving mechanical axis 10, forerunner's gear 6 is installed on front wheel driving mechanical axis 10 also spacing by snap ring (two) 7, forerunner's outside framework oil seal 8 is installed in front wheel driving mechanical axis 10, in the time that external impetus axle sleeve is loaded on driving shaft 9 by spline transferring power, forerunner's outside framework oil seal 8 is set on this external impetus axle, play the effect of dynamic rotary sealing, rear-guard outside framework oil seal 19 is installed in casing 20, be set on rear driving mechanical axis 18 simultaneously, for the dynamic rotary sealing of rear driving mechanical axis 18, the sliding fixing frame 13 of limit is installed on driving shaft 9 by bearing (five) 26 and bearing (six) 27 respectively, and pass through snap ring (three) 25 to its axial limiting, the integrated sun gear 24 of forerunner and the integrated sun gear 28 of rear-guard are integrated on driving shaft 9, forerunner's planet wheel 23 is by circumferentially uniform being installed on the sliding fixing frame 13 of limit of forerunner's planet wheel supporting component 1, and forerunner's planet wheel 23 engages with inner ring gear and the integrated sun gear 24 of forerunner of front wheel driving mechanical axis 10 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 is slided the inner ring gear of fixing frame 13 simultaneously with limit, the integrated sun gear 28 of rear-guard engages, brake slipper (one) 22-1, brake slipper (two) 22-2, brake slipper (three) 22-3 and brake slipper (four) 22-4 are circumferentially uniform along the sliding fixing frame 13 of limit, brake slipper (one) 22-1 is installed between the sliding fixing frame 13 of limit and casing 20 by anti-skidding fastener assembly 21, brake slipper (one) 22-1 is set in the upper rotation of brake pad support 21-2, and be installed on the sliding fixing frame 13 of limit by fastening screw trip bolt 21-1 is fastening, circumferentially uniform brake slipper (two) 22-2, brake slipper (three) 22-3, brake slipper (four) 22-4 and the Placement of limitting sliding fixing frame 13, 22-1 is consistent with brake slipper (), between brake slipper (one) 22-1 and brake slipper (two) 22-2, strain by spring (two) 29-2, between brake slipper (three) 22-3 and brake slipper (four) 22-4, strain by spring () 29-1.
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 the sliding fixing frame 13 of limit by screw threads for fastening, 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.
In the present embodiment, the gear ratio of the inner ring gear of front wheel driving mechanical axis 10 and the integrated sun gear 24 of forerunner is α, and the sliding inner ring gear of fixing frame 13 of limit and the gear ratio of the integrated sun gear 28 of rear-guard are also α; According to the drive characteristic of planetary gears, forerunner is inputted by the integrated sun gear 10 of forerunner, and it is fixing to slide fixing frame 13 by limit, by front wheel driving mechanical axis output 10, its velocity ratio is-α ("-" represents that front wheel driving mechanical axis 10 is contrary with integrated sun gear 24 rotating speeds of forerunner); Rear-guard is inputted by the integrated sun gear 28 of rear-guard, through limitting sliding fixing frame 13 fixing, is exported by rear driving mechanical axis 18, and its velocity ratio is 1+ α; Different from the velocity ratio of rear-guard by forerunner, between axle for vehicle, drive differential thereby realize not of uniform size the causing of the wheel that travels; And utilize forerunner to export this characteristic contrary to rear-guard output speed, and the gear ring of forerunner's planet carrier and rear-guard is connected as one to form the sliding fixing frame 13 of limit, in the time that the sliding fixing frame 13 of limit rotates with certain speed, can play shaft space difference speed effect.In order to overcome due to forerunner's output problem contrary with rear-guard output speed, in actual mechanical process, pass through to change arbitrary drive bevel gear transmission direction of forerunner's differential mechanism or rear-guard differential mechanism simultaneously.
Shown in Figure 7, 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, differential mechanism front drive axle and back driving axle driven travel (while normally travelling without differential) while taking turns there is the velocity ratio mating, as pressed in Fig. 1 as shown in C direction, driving shaft 9 is rotated counterclockwise under powered attendant-controlled wheelchairs driving, drive forerunner's planet wheel 23 to rotate by the integrated sun gear 24 of forerunner, drive rear-guard planet wheel 14 to rotate by the integrated sun gear 28 of rear-guard, under the effect of external motion resistance, forerunner's planet wheel 23 impels the sliding fixing frame 13 of limit to be rotated counterclockwise by forerunner's planet wheel supporting component 1, and rear-guard planet wheel 14 impels the sliding fixing frame 13 of limit to turn clockwise, so rear-guard planet wheel 14 is to limitting the active force of sliding fixing frame 13 and forerunner's planet wheel 23 to limitting the force direction of sliding fixing frame 13 contrary, power is inputted rear portion through driving shaft 9 and is driven front wheel driving mechanical axis 10 through forerunner's planet wheel 23, and by forerunner's gear 6 by transmission of power to front drive axle part, another part drives rear driving mechanical axis 18 through rear-guard planet wheel 14, and by the spline on rear driving mechanical axis 18 by transmission of power to back driving axle part, concrete running state is as follows: suppose
The sliding fixing frame 13 of limit is relatively static, and driving shaft 9 drives the angular velocity of front wheel driving mechanical axis 10: ω by forerunner's planet wheel 23 with rated speed
1;
Now, the travel angular velocity of the front wheel driving mechanical axis 10 that feeds back to differential mechanism of front wheel driving mechanical axis 10 end outsides is: ω
2;
The sliding fixing frame 13 of limit is relatively static, and driving shaft 9 drives the angular velocity of rear driving mechanical axis 18: ω by rear-guard planet wheel 14 with rated speed
3;
Now, 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's wheel 23 that travels is subject to external influence and impels ω
2< ω
1time, forerunner's wheel 23 that travels will drive the sliding fixing frame 13 of limit to rotate by forerunner's planet wheel supporting component 1, and the rotation of the sliding fixing frame 13 of limit will speed up the driving of rear-guard planet wheel 14 to rear driving mechanical axis 18, i.e. ω
3become large, to increase, rear-guard is travelled and takes turns 14 driving; Otherwise, when the rear-guard wheel 14 that travels is subject to external influence and impels ω
4< ω
3time, rear-guard travel wheel 14 by transmission of power to the sliding fixing frame 13 of limit, the rotation of the sliding fixing frame 13 of limit will speed up the driving of forerunner's planet wheel 23 to front wheel driving mechanical axis 10, i.e. ω
1become large, to increase, forerunner is travelled and takes turns 23 driving, with motivational drive differential before and after realizing; In the time that normal differential drives, the rotational speed of the sliding fixing frame 13 of limit is not enough to make the centrifugal force of brake slipper (one) 22-1 and brake slipper (two) 22-2 to overcome that spring (two) 29-2 opens or the centrifugal force of brake slipper (three) 22-3 and brake slipper (four) 22-4 overcomes spring () 29-1 and opens;
When differential mechanism one end, ransaxle is blocked, and the other end ransaxle while occurring skidding in driving process, in the situation that engine power is constant, because driving the moment driving force of skidding sharply to decline, to cause ransaxle moment rotating speed sharply to rise, under the driving of the high driving shaft 9 of rotating speed, the rotating speed of the sliding fixing frame 13 of limit also increases, the centrifugal force producing impels brake slipper (one) 22-1 and brake slipper (two) 22-2 to overcome spring (two) 29-2 elastic force to open, and brake slipper (three) 22-3 and brake slipper (four) 22-4 overcome spring () 29-1 elastic force and open, in addition, brake slipper (one) 22-1, brake slipper (two) 22-2, brake slipper (three) 22-3, brake slipper (four) 22-4 contact with casing 20 inwalls and produce resistance, moment is reduced the rotating speed of the sliding fixing frame 13 of limit, be controlled at and set within the scope of limit speed, played the anti-skidding effect of friction.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit, comprise casing, it is characterized in that, be provided with driving shaft in casing, driving shaft one end is installed in front wheel driving mechanical axis, the other end is installed in rear driving mechanical axis, and front wheel driving mechanical axis is arranged in end cap, rear driving mechanical axis is installed in casing, and forerunner's gear is installed on front wheel driving mechanical axis, the sliding fixing frame of limit is installed on driving shaft, and the integrated sun gear of forerunner and the integrated sun gear of rear-guard are integrated on driving shaft; In addition, forerunner's planet wheel supporting component is identical with rear-guard planet wheel supporting component structure, forerunner's planet wheel is by circumferentially uniform being installed on the sliding fixing frame of limit of forerunner's planet wheel supporting component, and forerunner's planet wheel engages with the integrated sun gear of inner ring gear, forerunner of front wheel driving mechanical axis simultaneously, rear-guard planet wheel is by circumferentially uniform being installed on rear driving mechanical axis of rear-guard planet wheel supporting component, and rear-guard planet wheel engages with the integrated sun gear of inner ring gear, rear-guard of the sliding fixing frame of limit simultaneously; And be provided with brake slipper between the sliding fixing frame of limit and casing, and brake slipper is circumferentially uniform along the sliding fixing frame of limit, between brake slipper, connects tension by spring.
2. the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit according to claim 1, is characterized in that, end cap outside framework oil seal is also installed in end cap, and end cap outside framework oil seal is set on front wheel driving mechanical axis.
3. the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit according to claim 1, it is characterized in that, forerunner's outside framework oil seal is installed in front wheel driving mechanical axis, in the time that external impetus axle sleeve is loaded on driving shaft by spline transferring power, forerunner's outside framework oil seal is set on this external impetus axle.
4. the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit according to claim 1, is characterized in that, in casing, be provided with the rear-guard outside framework oil seal for the sealing of rear driving mechanical axis dynamic rotary, rear-guard outside framework oil seal is set on rear driving mechanical axis.
5. the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit according to claim 1, is characterized in that, is provided with for forerunner's gear being carried out to spacing snap ring (two) on front wheel driving mechanical axis.
6. the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit according to claim 1, it is characterized in that, forerunner's planet wheel supporting component comprises assembly sliding bearing, assembly screw, 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 the sliding fixing frame of limit by screw threads for fastening, and the other end is set with assembly back-up ring.
7. the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit according to claim 1, is characterized in that, between the sliding fixing frame of limit and casing, is provided with four brake slipper.
8. the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit according to claim 7, it is characterized in that, brake slipper is installed between the sliding fixing frame of limit and casing by anti-skidding fastener assembly, and anti-skidding fastener assembly comprises fastening screw trip bolt, brake pad support, brake slipper is set in brake pad support and rotates, and is installed on the sliding fixing frame of limit by fastening screw trip bolt is fastening.
9. according to the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit described in claim 1～8, it is characterized in that, without normal vehicle operation under the effect of external motion resistance, driving shaft is rotated counterclockwise under powered attendant-controlled wheelchairs driving, and drive the rotation of forerunner's planet wheel by the integrated sun gear of forerunner, drive the rotation of rear-guard planet wheel by the integrated sun gear of rear-guard, and under the effect of external motion resistance, forerunner's planet wheel impels the sliding fixing frame of limit to be rotated counterclockwise trend by forerunner's planet wheel supporting component, and rear-guard planet wheel impels the sliding fixing frame of the limit trend that turns clockwise by rear-guard planet wheel supporting component, now, rear-guard planet wheel to the active force of limitting sliding fixing frame with forerunner's planet wheel to limitting the force direction of sliding fixing frame contrary, in the time of active force equal and opposite in direction, the sliding fixing frame of limit keeps relatively static, forerunner's planet wheel and the output of rear-guard planet wheel indifferential power, in the time that active force differs in size, the sliding fixing frame of limit produces relative movement, the power of one end is flowed to the other end, to realize differential.
10. according to the sliding vehicle interaxial differential of planetary gear type centrifugal friction limit described in claim 1～9, it is characterized in that, when differential mechanism one end, ransaxle is blocked, and the other end ransaxle while occurring skidding in driving process, constant in engine power, under the extremely high-revolving driving effect of driving shaft, the rotating speed of the sliding fixing frame of limit also increases, the centrifugal force producing impels brake slipper to overcome spring force to open, and brake slipper contacts generation resistance with cabinet wall, to reduce the rotating speed of the sliding fixing frame of limit, realize friction limit sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360341.XA CN104141767B (en) | 2014-07-25 | 2014-07-25 | Planetary-gear type centrifugal friction-slipping-limiting inter-axle differential mechanism for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410360341.XA CN104141767B (en) | 2014-07-25 | 2014-07-25 | Planetary-gear type centrifugal friction-slipping-limiting inter-axle differential mechanism for vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN104141767A true CN104141767A (en) | 2014-11-12 |
| CN104141767B CN104141767B (en) | 2015-03-11 |
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| CN201410360341.XA Expired - Fee Related CN104141767B (en) | 2014-07-25 | 2014-07-25 | Planetary-gear type centrifugal friction-slipping-limiting inter-axle differential mechanism for vehicle |
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| JP2002206568A (en) * | 2001-01-12 | 2002-07-26 | Honda Motor Co Ltd | Electromagnetic clutch structure in driving force distributing device |
| CN102305281A (en) * | 2011-08-02 | 2012-01-04 | 黄华 | Self-locking ring for differential |
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| CN204004277U (en) * | 2014-07-25 | 2014-12-10 | 湖南农业大学 | The sliding vehicle interaxial differential of planetary gear type centrifugal friction limit |
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2014
- 2014-07-25 CN CN201410360341.XA patent/CN104141767B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN2056469U (en) * | 1989-03-25 | 1990-04-25 | 姚一中 | Planetary gear type reduction device |
| FR2784163A1 (en) * | 1998-10-05 | 2000-04-07 | Dominique Crasset | Limited slip differential for model motor vehicle has transmission ball bearings also acting as centrifugal control weights |
| JP2002206568A (en) * | 2001-01-12 | 2002-07-26 | Honda Motor Co Ltd | Electromagnetic clutch structure in driving force distributing device |
| CN102305281A (en) * | 2011-08-02 | 2012-01-04 | 黄华 | Self-locking ring for differential |
| CN103807405A (en) * | 2014-03-06 | 2014-05-21 | 唐山爱特精密机器制造有限公司 | Helical tooth limited slip differential with automatic locking function |
| CN204004277U (en) * | 2014-07-25 | 2014-12-10 | 湖南农业大学 | The sliding vehicle interaxial differential of planetary gear type centrifugal friction limit |
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