CN104141767B - 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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- CN104141767B CN104141767B CN201410360341.XA CN201410360341A CN104141767B CN 104141767 B CN104141767 B CN 104141767B CN 201410360341 A CN201410360341 A CN 201410360341A CN 104141767 B CN104141767 B CN 104141767B
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- driving
- limit
- forerunner
- fixing frame
- 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
-
- 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
-
- 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)
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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, particularly relate to a kind of planetary gear type centrifugal friction limit coaster interaxial differential.
Background technique
The especially general purpose wheeled tractor of agri-vehicle travels in field usually, but because field soil quality is soft, traction is little, for increasing the driving force of tractor, usually adopting and strengthening driving wheel diameter, increase pattern depth or adopt the modes such as four-wheel drive.Wherein, strengthen wheel diameter and the steering capability of front-wheel can be made to 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 increasing tyre tread can be worn and torn along with the use of tire, effectively can not solve the problem of tractor driving kinetic force; And when adopting four-wheel drive, must design specialized gear to overcome the problem causing front wheel rotation speed different because wheel size differs, skid because tractor easily occurs driving when field work simultaneously, in order to improve the passing ability of tractor, on tractor, differential lock is forced in configuration usually, adopting manual control mode forced locking differential mechanism when occurring that driving wheel skids, so not only reducing working efficiency, and adding the complexity of Dynamic System.
Summary of the invention
Technical problem solved by the invention is to provide a kind of planetary gear type centrifugal friction to limit coaster with interaxial differential, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
Planetary gear type centrifugal friction limit coaster interaxial differential, comprise casing, wherein, driving shaft is provided with 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, forerunner's gear is installed on front wheel driving mechanical axis, is provided with forerunner's outside framework oil seal in front wheel driving mechanical axis, when external impetus axle sleeve to be 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 installed on the sliding fixing frame of limit by forerunner's planet wheel supporting component circumference is uniform, and engage with the inner ring gear of front wheel driving mechanical axis, the integrated sun gear of forerunner while of forerunner's planet wheel, rear-guard planet wheel is installed on rear driving mechanical axis by rear-guard planet wheel supporting component circumference is uniform, and engages with the inner ring gear of limit cunning fixing frame, the integrated sun gear of rear-guard while of rear-guard planet wheel; And brake slipper is provided with between the sliding fixing frame of limit and casing, and brake slipper is uniform along the sliding fixing frame circumference of limit, connects tension between brake slipper by spring.
In the present invention, the snap ring one for axial limiting is installed in end cap.
In the present invention, be also provided with end cap outside framework oil seal in end cap, and end cap outside framework oil seal is set on front wheel driving mechanical axis, the dynamic rotary for front wheel driving mechanical axis seals.
In the present invention, end cap and casing coordinate and install and be connected fastening by end cap clamping bolt.
In the present invention, front wheel driving mechanical axis is provided with for carrying out spacing snap ring two to forerunner's gear.
In the present invention, forerunner's planet wheel supporting component comprises component slippage bearing, assembly screw, assembly back-up ring, component slippage bearing interference fit is installed in forerunner's planet wheel, forerunner's planet wheel is loaded on assembly screw by component slippage bearing housing and dallies, 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, four brake slipper are provided with between the sliding fixing frame of limit and casing.
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, 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.
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 forerunner's planet wheel to rotate by the integrated sun gear of forerunner, drives rear-guard planet wheel to rotate 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 limit to turn clockwise trend by rear-guard planet wheel supporting component, now, rear-guard planet wheel is contrary to limitting the force direction of sliding fixing frame with forerunner's planet wheel to the active force of the sliding fixing frame of limit, when active force equal and opposite in direction, the sliding fixing frame of limit keeps geo-stationary, forerunner's planet wheel and rear-guard planet wheel indifferential Power output, when 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 pass through 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 by forerunner's planet wheel drive the angular velocity of front wheel driving mechanical axis be greater than front wheel driving mechanical axis end outside travel feed back to the angular velocity of differential mechanism front wheel driving mechanical axis time, forerunner travels wheel and the sliding fixing frame of limit will be driven to rotate by forerunner's planet wheel supporting component, 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, namely driving shaft drives the angular velocity of rear driving mechanical axis to increase, to increase driving rear-guard being travelled to wheel with rated speed; Otherwise, driving shaft with rated speed by rear-guard planet wheel drive the angular velocity of rear driving mechanical axis be greater than rear driving mechanical axis end outside travel feed back to the angular velocity of differential mechanism rear driving mechanical axis time, rear-guard travels wheel by transmission of power to the sliding fixing frame of limit, the rotation of the sliding fixing frame of limit accelerates forerunner's planet wheel to the driving of front wheel driving mechanical axis, driving shaft drives the angular velocity of front wheel driving mechanical axis to increase with rated speed, to increase driving forerunner being travelled to wheel, and then realize forerunner and travel wheel and travel the motivational drive differential of taking turns with rear-guard.
In the present invention, when normal differential drives, limit the rotational speed of sliding fixing frame to be not enough to make the centrifugal force of brake slipper to overcome spring force and open, when differential mechanism one end, ransaxle is blocked, and the other end ransaxle occur in driving process skid time, when engine power is constant, sharply decline because driving driving force instantaneously of skidding, ransaxle moment rotating speed will be caused 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 produced centrifugal force impels brake slipper to overcome spring force to open, and brake slipper contacts with cabinet wall and produces resistance, to reduce the rotating speed of the sliding fixing frame of limit, controlled within the scope of setting limit speed, play the effect that friction limit is sliding.
Beneficial effect: the present invention adopts the planetary gears of the structural parameter such as front two rows, power is inputted by the sun gear of two groups of planetary gears, forerunner adopts front wheel driving mechanical axis to export, rear-guard adopts rear driving mechanical axis to export, to form slowdown type interaxial differential, the planet carrier of forerunner and the gear ring of rear-guard are combined to form and limit sliding fixing frame simultaneously, and on the sliding fixing frame of limit, brake slipper is installed, when occurring driving skidding, brake slipper produces with differential mechanism housing contacts under the influence of centrifugal force and brakes, locking interaxial differential plays the sliding effect of friction limit, be conducive to improving the tractor chassis ground Clearance, strengthen adhesion, thus improve the passing ability of tractor, and increase work efficiency, easy and simple to handle, reduce the complexity of system.
Accompanying drawing explanation
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
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
See planetary gear type centrifugal friction limit coaster the interaxial differential of Fig. 1 ~ Fig. 6, comprise forerunner's planet wheel supporting component 1, end cap clamping bolt 2, end cap 3, snap ring 1, end cap outside framework oil seal 5, forerunner's gear 6, snap ring 27, forerunner's outside framework oil seal 8, driving shaft 9, front wheel driving mechanical axis 10, bearing 1, bearing 2 12, the sliding fixing frame 13 of limit, 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, 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 3 25, bearing 5 26, bearing 6 27, the integrated sun gear 28 of rear-guard, spring one 29-1, spring two 29-2, component slippage bearing 1-1, assembly screw 1-2, assembly back-up ring 1-3.
In the present embodiment, driving shaft 9 one end is installed in front wheel driving mechanical axis 10 by bearing 2 12, the other end is installed in rear driving mechanical axis 18 by bearing 3 16, front wheel driving mechanical axis 10 is installed in end cap 3 by bearing 1, rear driving mechanical axis 18 is installed in casing 20 by bearing 4 17, end cap 3 coordinates with casing 20 to be installed and is connected fastening by end cap clamping bolt 2, snap ring 1 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, dynamic rotary for front wheel driving mechanical axis 10 seals, forerunner's gear 6 to be installed on front wheel driving mechanical axis 10 and spacing by snap ring 27, forerunner's outside framework oil seal 8 is installed in front wheel driving mechanical axis 10, when external impetus axle sleeve to be 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, dynamic rotary for rear driving mechanical axis 18 seals, the sliding fixing frame 13 of limit is installed on driving shaft 9 respectively by bearing 5 26 and bearing 6 27, and by snap ring 3 25 to its axial limiting, the integrated sun gear of forerunner 24 and the integrated sun gear 28 of rear-guard are integrated on driving shaft 9, forerunner's planet wheel 23 is installed on the sliding fixing frame 13 of limit by forerunner's planet wheel supporting component 1 circumference is uniform, and the inner ring gear of forerunner's planet wheel 23 and front wheel driving mechanical axis 10 and the integrated sun gear 24 of forerunner engage simultaneously, rear-guard planet wheel 14 is installed on rear driving mechanical axis 18 by rear-guard planet wheel supporting component 15 circumference is uniform, and rear-guard planet wheel 14 slides the inner ring gear of fixing frame 13 with limit simultaneously, 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 is along limitting sliding fixing frame 13 circumference uniform, 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 on brake pad support 21-2 and rotates, and be installed on the sliding fixing frame 13 of limit by fastening screw trip bolt 21-1 is fastening, brake slipper two 22-2 that circumference is uniform, brake slipper three 22-3, brake slipper four 22-4 slides the Placement of fixing frame 13 with limit, consistent with brake slipper one 22-1, strained by spring two 29-2 between brake slipper one 22-1 and brake slipper two 22-2, strained by spring one 29-1 between brake slipper three 22-3 and brake slipper four 22-4.
In forerunner's planet wheel supporting component 1, component slippage bearing 1-1 interference fit is installed in forerunner's planet wheel 23, forerunner's planet wheel 23 is set on assembly screw 1-2 by component slippage bearing 1-1 and dallies, 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 structure is 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 is fixed by the sliding fixing frame 13 of limit, exports 10 by front wheel driving mechanical axis, and its velocity ratio is that-α "-" represents that front wheel driving mechanical axis 10 is contrary with forerunner's integrated sun gear 24 rotating speed; Rear-guard is inputted by the integrated sun gear 28 of rear-guard, and through limitting sliding fixing frame 13 to fix, exported by rear driving mechanical axis 18, its velocity ratio is 1+ α; Different from the velocity ratio of rear-guard by forerunner, thus not of uniform size the causing between axle for vehicle of realization traveling wheel drives differential; And utilize forerunner to export this characteristic contrary to rear-guard output speed, the planet carrier of forerunner and the gear ring of rear-guard being connected as one to be formed and limits sliding fixing frame 13, when limitting sliding fixing frame 13 to rotate with certain speed, shaft space difference speed effect can be played.Simultaneously in order to overcome because forerunner exports the problem contrary with rear-guard output speed, by changing arbitrary drive bevel gear transmission direction of forerunner's differential mechanism or rear-guard differential mechanism in actual mechanical process.
Shown in Figure 7, front drive axle is consistent with back driving axle structure, and forerunner travel wheel be less than rear-guard travel wheel, differential mechanism normally travels without the need to having the velocity ratio mated during differential when front drive axle and back driving axle driven travel and take turns, as pressed shown in C direction in Fig. 1, driving shaft 9 is rotated counterclockwise under powered attendant-controlled wheelchairs driving, forerunner's planet wheel 23 is driven to rotate by the integrated sun gear 24 of forerunner, rear-guard planet wheel 14 is driven 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, rear-guard planet wheel 14 like this is contrary with the force direction of forerunner's planet wheel 23 to the sliding fixing frame 13 of limit to the active force of the sliding fixing frame 13 of limit, power inputs rear portion through driving shaft 9 and drives front wheel driving mechanical axis 10 through forerunner's planet wheel 23, and pass through 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, carrying out practically state is as follows: suppose
Sliding fixing frame 13 geo-stationary of limit, driving shaft 9 drives the angular velocity of front wheel driving mechanical axis 10 by forerunner's planet wheel 23 with rated speed: ω
1;
Now, the outside angular velocity feeding back to the front wheel driving mechanical axis 10 of differential mechanism that travels of front wheel driving mechanical axis 10 end is: ω
2;
Sliding fixing frame 13 geo-stationary of limit, driving shaft 9 drives the angular velocity of rear driving mechanical axis 18 by rear-guard planet wheel 14 with rated speed: ω
3;
Now, the outside angular velocity feeding back to the rear driving mechanical axis 18 of differential mechanism that travels of rear driving mechanical axis 18 end is: ω
4;
Be subject to external influence when forerunner travels wheel 23 and impel ω
2< ω
1time, forerunner travels wheel 23 and the sliding fixing frame 13 of limit will be driven 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 pairs of rear driving mechanical axis 18, i.e. ω
3become large, to increase driving rear-guard being travelled to wheel 14; Otherwise, be subject to external influence when rear-guard traveling wheel 14 and impel ω
4< ω
3time, rear-guard travels wheel 14 by transmission of power to the sliding fixing frame 13 of limit, and the rotation of the sliding fixing frame 13 of limit will speed up the driving of forerunner's planet wheel 23 pairs of front wheel driving mechanical axis 10, i.e. ω
1become large, to increase driving forerunner being travelled to wheel 23, to realize front and back motivational drive differential; When 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 spring two 29-2 to open or the centrifugal force of brake slipper three 22-3 and brake slipper four 22-4 overcomes spring one 29-1 and opens;
When differential mechanism one end, ransaxle is blocked, and the other end ransaxle occur in driving process skid time, when engine power is constant, sharply decline because driving driving force instantaneously of skidding, ransaxle moment rotating speed will be caused 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 produced 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 overcomes spring one 29-1 elastic force opens; In addition, brake slipper one 22-1, brake slipper two 22-2, brake slipper three 22-3, brake slipper four 22-4 and casing 20 contact internal walls produce resistance, reduce the rotating speed of the sliding fixing frame 13 of limit instantaneously, controlled, within the scope of setting limit speed, to play the effect that friction is anti-skidding.
More than show and describe 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; what describe in above-described embodiment and specification 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.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. planetary gear type centrifugal friction limit coaster interaxial differential, 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 installed on the sliding fixing frame of limit by forerunner's planet wheel supporting component circumference is uniform, and engage with the inner ring gear of front wheel driving mechanical axis, the integrated sun gear of forerunner while of forerunner's planet wheel, rear-guard planet wheel is installed on rear driving mechanical axis by rear-guard planet wheel supporting component circumference is uniform, and engages with the inner ring gear of limit cunning fixing frame, the integrated sun gear of rear-guard while of rear-guard planet wheel; And brake slipper is provided with between the sliding fixing frame of limit and casing, and brake slipper is uniform along the sliding fixing frame circumference of limit, connects tension between brake slipper by spring.
2. planetary gear type centrifugal friction according to claim 1 limit coaster is with interaxial differential, it is characterized in that, be also provided with end cap outside framework oil seal in end cap, and end cap outside framework oil seal is set on front wheel driving mechanical axis.
3. planetary gear type centrifugal friction according to claim 1 limit coaster interaxial differential, it is characterized in that, forerunner's outside framework oil seal is installed in front wheel driving mechanical axis, when external impetus axle sleeve to be loaded on driving shaft by spline transferring power, forerunner's outside framework oil seal is set on this external impetus axle.
4. planetary gear type centrifugal friction according to claim 1 limit coaster is with interaxial differential, and it is characterized in that, be provided with the rear-guard outside framework oil seal for the sealing of rear driving mechanical axis dynamic rotary in casing, rear-guard outside framework oil seal is set on rear driving mechanical axis.
5. planetary gear type centrifugal friction according to claim 1 limit coaster is with interaxial differential, it is characterized in that, front wheel driving mechanical axis being provided with for carrying out spacing snap ring to forerunner's gear.
6. planetary gear type centrifugal friction according to claim 1 limit coaster interaxial differential, it is characterized in that, forerunner's planet wheel supporting component comprises component slippage bearing, assembly screw, assembly back-up ring, component slippage bearing interference fit is installed in forerunner's planet wheel, forerunner's planet wheel is loaded on assembly screw by component slippage bearing housing and dallies, 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. planetary gear type centrifugal friction according to claim 1 limit coaster is with interaxial differential, it is characterized in that, is provided with four brake slipper between the sliding fixing frame of limit and casing.
8. planetary gear type centrifugal friction according to claim 7 limit coaster interaxial differential, 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. planetary gear type centrifugal friction limit coaster according to claims 1 to 8 interaxial differential, 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 forerunner's planet wheel to rotate by the integrated sun gear of forerunner, drive rear-guard planet wheel to rotate 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 limit to turn clockwise trend by rear-guard planet wheel supporting component, now, rear-guard planet wheel is contrary to limitting the force direction of sliding fixing frame with forerunner's planet wheel to the active force of the sliding fixing frame of limit, when active force equal and opposite in direction, the sliding fixing frame of limit keeps geo-stationary, forerunner's planet wheel and rear-guard planet wheel indifferential Power output, when 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. planetary gear type centrifugal friction according to claim 9 limit coaster interaxial differential, it is characterized in that, when differential mechanism one end, ransaxle is blocked, and the other end ransaxle occur in driving process skid time, 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 produced impels brake slipper to overcome spring force to open, and brake slipper contacts with cabinet wall and produces resistance, 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104141767A CN104141767A (en) | 2014-11-12 |
| CN104141767B true CN104141767B (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102305281B (en) * | 2011-08-02 | 2013-10-16 | 黄华 | Self-locking ring for differential |
| CN103807405B (en) * | 2014-03-06 | 2016-03-30 | 唐山爱特精密机器制造有限公司 | There is the helical tooth limited-slip differential of 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 |
-
2014
- 2014-07-25 CN CN201410360341.XA patent/CN104141767B/en not_active Expired - Fee Related
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