CN108237906A - Drive shaft locking system and power-driven system and vehicle - Google Patents
Drive shaft locking system and power-driven system and vehicle Download PDFInfo
- Publication number
- CN108237906A CN108237906A CN201611229074.8A CN201611229074A CN108237906A CN 108237906 A CN108237906 A CN 108237906A CN 201611229074 A CN201611229074 A CN 201611229074A CN 108237906 A CN108237906 A CN 108237906A
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- China
- Prior art keywords
- drive shaft
- joint portion
- vehicle
- locking system
- servo
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
Abstract
The invention discloses a kind of drive shaft locking systems and power-driven system and vehicle, drive shaft locking system to include：Planetary gear mechanism；First, second drive shaft and power engagement device, power engagement device includes the first and second joint portions, planet carrier, the first drive shaft and the first joint portion rotate synchronously, and the first joint portion can axially move with respect to the first drive shaft, and the second drive shaft, the second joint portion and sun gear rotate synchronously；Including：Drive needle and the fluid pressure type driving device in fluid pressure type driving portion, driving needle be arranged to can with gear ring around the center axis thereof of sun gear and can relative gear rings move axially, fluid pressure type driving portion is arranged for driving driving needle and the first joint portion is driven to be moved in an axial direction to close to the direction at the second joint portion, so as to which the first joint portion be made to engage the second joint portion.Drive shaft locking system can improve the ability of getting rid of poverty of vehicle with two drive shafts of locking in this way.
Description
Technical field
The present invention relates to technical field of vehicle more particularly to a kind of drive shaft locking system for vehicle and with should
The power-driven system of drive shaft locking system, the also vehicle with the power-driven system.
Background technology
In the relevant technologies, new-energy automobile employs distributed type of drive, and both sides wheel is respectively driven by two motors,
Rotating speed, the torque of left and right wheel can independently be adjusted by controller, are eliminated differential mechanism in this way, but easily beaten certain
Still need locking left and right half under ways condition to improve trafficability.It if should by traditional electric locking formula differential mechanism
For the new-energy automobile of distribution driving, then the differential function of differential mechanism, and traditional electric locking formula differential are wasted
Device is complicated, and parts are more, and occupied space is more.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention carries
Go out a kind of drive shaft locking system for vehicle, which can be conducive to two drive shafts of locking
Vehicle is got rid of poverty.
The present invention further proposes a kind of power-driven system.
The present invention further also proposed a kind of vehicle.
Drive shaft locking system according to the present invention for vehicle, including：Planetary gear mechanism, the planetary gear machine
Structure includes sun gear, planetary gear, planet carrier and gear ring；First drive shaft, the second drive shaft and power engagement device, the power
Engagement device includes the first joint portion and the second joint portion, wherein the planet carrier respectively with first drive shaft and described the
One joint portion is connected so that the planet carrier, first drive shaft and first joint portion rotate synchronously, and described the
Relatively described first drive shaft in one joint portion can axially move, and second drive shaft connects with the sun gear and described second
Conjunction portion is connected so that second drive shaft, second joint portion and the sun gear rotate synchronously；Fluid pressure type driving device,
The fluid pressure type driving device includes：Needle and fluid pressure type driving portion are driven, the driving needle is arranged to can be with the gear ring around institute
State the center axis thereof of sun gear and can gear ring axial movement relatively, the both ends of the driving needle respectively with the hydraulic pressure
Formula driving portion and first joint portion cooperation, the fluid pressure type driving portion are arranged for driving described in the driving needle drive
First joint portion is moved along the axial direction to the direction close to second joint portion, so as to make the first joint portion engagement institute
State the second joint portion.
Drive shaft locking system according to the present invention, when the first joint portion and the engagement of the second joint portion, the first drive shaft
And second be mutually locked between drive shaft, the first drive shaft and the second drive shaft can rotate synchronously, and then can be conducive to vehicle
Get rid of poverty.Moreover, by arranging joint portion driving device and power engagement device, it can realize that the first drive shaft and second is driven
The locking of moving axis can so that drive shaft locking system is simple in structure in this way, and reliable function realization, parts are few, small, into
This is low.
In addition, drive shaft locking system according to the present invention can also have following distinguishing feature：
In some examples of the present invention, the planet carrier is two and is separately positioned on the both sides of the sun gear.
In some examples of the present invention, two planet carriers are divided into axial restraint planet carrier and axial movement planet
Frame, the axial restraint planet carrier are fixed with first drive shaft, the axial movement relatively described axial restraint of planet carrier
Planet carrier can axially move, and the axial movement planet carrier is fixed with first joint portion.
The present invention some examples in, the planetary gear have planet wheel spindle, the planet wheel spindle respectively with the axis
It is connected to fixed carrier with the axial movement planet carrier, wherein the planet wheel spindle is cunning with the axial movement planet carrier
Dynamic connection.
In some examples of the present invention, driving needle axial groove is provided on the gear ring, the driving needle is slideably
It is arranged in the driving needle axial groove.
In some examples of the present invention, the drive shaft locking system further includes：Elastic device, the elastic device bullet
Property be arranged between first joint portion and second joint portion so that first joint portion has to far from described
The trend of the direction movement at the first joint portion.
In some examples of the present invention, the fluid pressure type driving portion includes：Servo-actuated portion, the servo-actuated portion can be with the drive
Dynamic needle rotation, and the servo-actuated portion can be braked, and drive surface is provided in the servo-actuated portion, and the servo-actuated portion leads to when being braked
It crosses the slip of the driving needle in the drive surface and makes the drive surface driving driving needle along the axial movement, with
Second joint portion is made to engage the first joint portion engagement.
In some examples of the present invention, the fluid pressure type driving portion further includes：Fluid pressure type braking parts, the fluid pressure type system
Dynamic portion is arranged for braking the servo-actuated portion.
In some examples of the present invention, the fluid pressure type braking parts are configured to hydraulic calipers；The servo-actuated portion
Side is provided with brake disc, and the hydraulic calipers are used to brake the brake disc.
In some examples of the present invention, the hydraulic calipers include the friction plate for clamping the brake disc.
In some examples of the present invention, servo-actuated portion's empty set is in first drive shaft.
In some examples of the present invention, the drive surface is inclined-plane or curved surface.
In some examples of the present invention, the drive surface includes：First segment and second segment, the first segment and described
Two sections are connected, and the junction of the first segment and the second segment is minimum point, the first segment and the second segment it is separate
The other end of the junction is peak.
In some examples of the present invention, the servo-actuated portion includes：It is servo-actuated portion's ontology and is arranged on servo-actuated portion's ontology
On annular servo-actuated portion's flange, be provided with the drive surface on the end face of the direction of the servo-actuated portion's flange driving needle.
In some examples of the present invention, drive surface limiting slot, one end of the driving needle are provided in the drive surface
In the drive surface limiting slot.
In some examples of the present invention, first joint portion empty set is in second drive shaft.
In some examples of the present invention, first joint portion has multiple the first circumferentially distributed engagement teeth, institute
Stating the second joint portion has multiple the second circumferentially distributed engagement teeth.
In some examples of the present invention, the driving needle and first joint portion close fit.
Power-driven system according to the present invention, including：The drive shaft locking system for vehicle；First is electronic
Generator, first dynamotor and first drive shaft are driven and output power to one in pair of wheels；
Second dynamotor, second dynamotor are driven with second drive shaft and output power in pair of wheels
Another.
The advantageous effect of the power-driven system is identical with the advantageous effect of the drive shaft locking system, herein no longer
It is described in detail.
Vehicle according to the invention, including the power-driven system.
The advantageous effect of the vehicle is identical with the advantageous effect of the power-driven system, and this will not be detailed here.
Description of the drawings
Fig. 1 is the schematic diagram of drive shaft locking system according to embodiments of the present invention；
Fig. 2 is the explosive view of drive shaft locking system according to embodiments of the present invention；
Fig. 3 is the structure diagram in servo-actuated portion；
Fig. 4 is the schematic diagram of power-driven system according to embodiments of the present invention；
Fig. 5 is the schematic diagram of power-driven system according to embodiments of the present invention.
Reference numeral：
Power-driven system 1000；
Drive shaft locking system 100；
Planetary gear mechanism 10；Sun gear 11；Planetary gear 12；Planet carrier 13；Axial restraint planet carrier 131；Axial movement
Planet carrier 132；
Gear ring 14；Drive needle axial groove 141；
First drive shaft 20；Second drive shaft 30；
Power engagement device 40；First joint portion 41；First engagement tooth 411；
Second joint portion 42；Second engagement tooth 422；
Fluid pressure type driving device 50；Drive needle 51；Fluid pressure type driving portion 52；Servo-actuated portion 521；Servo-actuated portion ontology 521a；With
Dynamic portion flange 521b；
Fluid pressure type braking parts 522；
Drive surface 523；First segment 523a；Second segment 523b；Drive surface limiting slot 523c；
Elastic device 70；
First dynamotor D1；Second dynamotor D2；Third dynamotor D3；4th dynamotor D4；
The near front wheel Z1；Left rear wheel Z2；Off-front wheel Y1；Off hind wheel Y2.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings drive shaft locking system 100 according to embodiments of the present invention is described in detail, the drive shaft locking
Device 100 can be applied on vehicle, especially suitable for the new-energy automobile using distributed driving, drive shaft locking system
100 can be used for two drive shafts of locking, so that left and right wheels rotate synchronously, can greatly improve vehicle and get rid of poverty energy
Power, vehicle can be electric vehicle, but not limited to this.
As depicted in figs. 1 and 2, drive shaft locking system 100 according to embodiments of the present invention can include：Planetary gear machine
Structure 10, the first drive shaft 20, the second drive shaft 30, power engagement device 40 and fluid pressure type driving device 50.
Planetary gear mechanism 10 includes sun gear 11, planetary gear 12, planet carrier 13 and gear ring 14, and planetary gear 12 can rotate
Ground is mounted on planet carrier 13, and planetary gear 12 is engaged between sun gear 11 and gear ring 14, and planetary gear 12 can be as a result,
Passing power between sun gear 11 and gear ring 14.Wherein, planetary gear 12 can be multiple, such as three, and three planetary gears 12 can
It is uniformly distributed with the central axis about sun gear 11.Planet wheel spindle can be installed, planetary gear 12 is mounted on planet carrier 13
On planet wheel spindle.
First drive shaft 20 and the second drive shaft 30 are two independent axis, for example, the first drive shaft 20 can be with left vehicle
Wheel transmission, the second drive shaft 30 can be with right wheel drive.The axis of first drive shaft 20 and the second drive shaft 30 can be conllinear.
However, the present invention is not limited thereto, such as the first drive shaft 20 can also be right axle shafts, and the second drive shaft 30 can be left half axle.
Power engagement device 40 can include the first joint portion 41 and the second joint portion 42, as shown in Figure 1, planet carrier 13 divides
It is not connected with the first drive shaft 20 and the first joint portion 41, so that planet carrier 13, the first drive shaft 20 and the first joint portion 41
It rotates synchronously, and the first joint portion 41 can in axial direction be moved relative to the first drive shaft.
Second drive shaft 30 can be connected with 11 and second joint portion 42 of sun gear respectively, so that the second drive shaft 30,
Two joint portions 42 and sun gear 11 rotate synchronously.
Fluid pressure type driving device 50 can include：Needle 51 and fluid pressure type driving portion 52 are driven, driving needle 51 is arranged to
With gear ring 14 around the center axis thereof of sun gear 11, and needle 51 is driven to be arranged to move axially with relative gear rings 14.
The both ends of driving needle 51 coordinate respectively with 52 and first joint portion 41 of fluid pressure type driving portion, and fluid pressure type driving portion 52 is set
It is set to for driving needle 51 to be driven to move axially, so that driving needle 51 drives the first joint portion 41 to be connect in an axial direction to close to second
The direction (direction from left to right i.e. shown in FIG. 1) in conjunction portion 41 is mobile, so as to which the first joint portion 41 be made to engage the second joint portion 42.
That is, gear ring 14 can drive driving needle 51 to rotate synchronously, for example, as shown in Figure 1, being provided on gear ring 14
Needle axial groove 141 is driven, driving needle 51 can be slidably arranged in driving needle axial groove 141.And fluid pressure type driving portion 52
Driving needle 51 can be driven to move from left to right, since one end of driving needle 51 coordinates with the first joint portion 41, drive needle in this way
51 can be moved from left to right with the first joint portion of synchronous drive 41, constantly close second joint portion 42 in the first joint portion 41, until
First joint portion 41 is engaged with the second joint portion 42, wherein, when the first joint portion 41 and the engagement of the second joint portion 42, first drives
It is mutually locked between 20 and second drive shaft 30 of moving axis, the first drive shaft 20 and the second drive shaft 30 can rotate synchronously, in this way
The power of skidding side can be exported by opposite side, and then can be conducive to getting rid of poverty for vehicle.
Traditional electric locking formula differential mechanism is the addition electric actuation locking machine on the basis of common open type differential
Structure so as to which differential mechanism has latch functions, passes through electrical control differential mechanism locking.This is that one kind is usually applied to centralized driving formula
The electric locking differential mechanism of fuel-engined vehicle, i.e. power are respectively allocated to left and right half after main reducing gear, differential mechanism, by difference
Fast device adjusts left and right difference in wheel.But cannot be directly applied on electric vehicle, such electric locking differential mechanism volume is big, and
And electric vehicle does not have engine.
Drive shaft locking system 100 of the invention is clearly distinguishable from traditional electronic from structure and realization method as a result,
Locking differential moreover, by arranging fluid pressure type driving device 50 and power engagement device 40, can realize the first drive shaft
20 and second drive shaft 30 locking, can cause that drive shaft locking system 100 is simple in structure in this way, reliable function realization, zero
Component is few, small, at low cost.Wherein, power engagement device 40 is engaged reliable and is stablized, and can improve drive shaft locking system
100 functional reliability.
Wherein, as shown in Figure 1, planetary gear mechanism 10, power engagement device 40, the first drive shaft 20 and the second drive shaft
30 is coaxially arranged.Thus, it is possible to so that 100 radial dimension of drive shaft locking system is small, it is small, it occupies little space.
According to a preferred embodiment of the present invention, as shown in Figure 1, planet carrier 13 can be two, and two planets
Frame 13 is separately positioned on the both sides of sun gear 11.It, can be with thus, it is possible to be conducive to the structural reliability of planetary gear mechanism 10
Be conducive to planet carrier 13 respectively with the first drive shaft 20 and the first joint portion 41 to be connected, so as to improve drive shaft locking system
100 structural reliability and it can make driving needle 51 that concentricity is installed to improve, when axial movement is also not easy to deviate.
Further, as shown in Figure 1, two planet carriers 13 can be divided into axial restraint planet carrier 131 and axial movement is gone
Carrier 132, axial restraint planet carrier 131 are fixed with the first drive shaft 20, and axial movement planet carrier 132 fixes planet to axial
Frame 131 can be axially moveable, and axial movement planet carrier 132 is fixed with the first joint portion 41.That is, axial restraint planet
Frame 131 can be used for fixing with the first drive shaft 20, and axial movement planet carrier 132 can be used for fixing with the first joint portion 41,
In this way by moving axially axial movement of the planet carrier 132 with respect to the first drive shaft 20 and axial restraint planet carrier 131, can promote
The first joint portion 41 is made to be moved axially to the second joint portion 42, and can cause the first drive shaft 20, axial restraint planet carrier
131st, 132 and first joint portion 41 of axial movement planet carrier rotates synchronously.
Specifically, planetary gear 12 can have a planet wheel spindle, planet wheel spindle respectively with axial restraint planet carrier 131 and axial
Mobile planet carrier 132 is connected, wherein, planet wheel spindle is with axial movement planet carrier 132 to be slidably connected.It can be conducive to axis in this way
Axial movement to mobile planet carrier 132, it is ensured that the functional reliability of drive shaft locking system 100.
Preferably, as shown in Figure 1, drive shaft locking system 100 can also include：Elastic device 70,70 bullet of elastic device
Property be arranged between the first joint portion 41 and the second joint portion 42 so that the first joint portion 41 has to far from the second joint portion
The trend of 42 direction movement.Elastic device 70 can be supplied to 41 opposite force of the first joint portion as a result, and first can be promoted to connect
Conjunction portion 41 is moved axially to the direction far from the second joint portion 42, until being detached completely with the second joint portion 42, at this point, drive shaft
Locking system 100 releases the locking to two drive shafts.
Wherein, as shown in Figure 1, fluid pressure type driving portion 52 can include：Servo-actuated portion 521, being servo-actuated portion 521 can be with driving needle
51 rotations, and servo-actuated portion 521 can be braked, and drive surface 523 is provided in servo-actuated portion 521, and servo-actuated portion 521 leads to when being braked
Slip of the needle 51 in drive surface 523 overdrive to change driving needle 51 and the position that is engaged of drive surface 523, and then makes drive
The dynamic driving of face 523 driving needle 51 is axially moveable, so that the first joint portion 41 engages the second joint portion 42.It is understood that
Before servo-actuated portion 521 is not braked, it can be synchronous rotation relationship to be servo-actuated portion 521 and driving needle 51, but in servo-actuated portion 521
After being braked, the rotating speed for being servo-actuated portion 521 reduces, and speed discrepancy will occurs between servo-actuated portion 521 and driving needle 51, and drive needle in this way
51 can slide in the drive surface 523 in servo-actuated portion 521, and the driving needle 51 after sliding axial with respect to planet carrier 13 can move
It is dynamic, so as to drive needle 51 that the first joint portion 41 can be driven to move closer to the second joint portion 42, until the first joint portion 41 and the
Two joint portions 42 engage.
Further, as shown in Figure 1, fluid pressure type driving portion 52 can also include：Fluid pressure type braking parts 522, fluid pressure type system
Dynamic portion 522 is arranged for braking servo-actuated portion 521.That is, fluid pressure type braking parts 522 can play the servo-actuated portion 521 of braking
Effect, when the first joint portion 41 and the second joint portion 42 is needed to engage, fluid pressure type braking parts 522 can brake servo-actuated portion
521。
Preferably, fluid pressure type braking parts 522 are configured to hydraulic calipers, and the side in servo-actuated portion 521 is provided with brake disc
524, hydraulic calipers are used to brake brake disc 524.That is, hydraulic calipers are by braking the side of brake disc 524
Formula brakes servo-actuated portion 521, so that speed discrepancy is generated between servo-actuated portion 521 and driving needle 51, so that driving needle
51 the first joint portions 41 of driving engage the second joint portion 42.
Specifically, hydraulic calipers can include the friction plate for clamping brake disc 524, and fluid pressure type is braked as a result,
Pincers can drive friction plate and brake disc 524 to contact to carry out friction catch by way of hydraulic pressure.Using fluid pressure type braking parts
522 and the control mode of planetary gear mechanism, the control system of drive shaft locking system 100 can be simplified and can be caused
System reliability higher.
Optionally, as shown in Figure 1, servo-actuated portion 521 can be with empty set in the first drive shaft 20.Thus, it is possible to advantageously
In servo-actuated portion 521 and the cooperation between needle 51 is driven, but also drive shaft locking system 100 can be reduced at least to some extent
Axial length, the volume of drive shaft locking system 100 can be reduced.
A specific embodiment according to the present invention, as shown in figure 3, drive surface 523 can be inclined-plane or curved surface.Pass through
Drive surface 523 is arranged to inclined-plane or curved surface, can be conducive to that needle 51 is driven to slide in drive surface 523, and can promote
Driving needle 51 is made to move in the axial direction.
Further, drive surface 523 can include：First segment 523a and second segment 523b, first segment 523a and second segment
523b is connected, and the junction of first segment 523a and second segment 523b is minimum point, and first segment 523a and second segment 523b's is separate
The other end of junction is peak.As a result, when one end of needle 51 is driven to be in minimum point, the first joint portion 41 and second connects
Conjunction portion 42 is in discrete state, when the one end for driving needle 51 is at the highest notch or during neighbouring peak, the first joint portion 41 and the
Two joint portions 42 are in engagement state.In this way by reasonable Arrangement drive surface 523, can be conducive to drive needle 51 in minimum point and
It is slided between peak, the engagement at the first joint portion 41 and the second joint portion 42 can be conducive in this way, can be conducive to be promoted
The functional reliability of drive shaft locking system 100.
Preferably, each section in first segment 523a and second segment 523b all can be arc-shaped.The first of circular shape
Section 523a and second segment 523b can be conducive to drive slip of the one end of needle 51 in drive surface 523, can reduce driving needle
51 moving resistance.
Optionally, each section of corresponding center of circle angle in first segment 523a and second segment 523b is identical.Such first segment
523a and second segment 523b are essentially identical, so as to be more conducive to slip of the driving needle 51 in drive surface 523.
Optionally, drive surface 523 can be multistage, and 523 circumferentially spaced distribution of multistage drive surface.It drives as a result,
The quantity of dynamic needle 51 can be corresponding with the quantity of drive surface 523, can increase the quantity of driving needle 51 in this way, so as to so that
It obtains 51 and first joint portion 41 of multiple driving needles to coordinate reliably, the second joint portion 42 can be caused to move axially reliably, can be made
Drive shaft locking system 100 work it is more reliable.
Wherein, can be connected between multistage drive surface 523 by connecting plane, connection plane is concordant with peak.In this way
Structural reliability of the servo-actuated portion 521 on the surface of drive surface 523 can be improved at least to some extent, can promote drive shaft lock
The structural reliability of locking apparatus 100.
An alternative embodiment according to the present invention, as shown in figure 3, servo-actuated portion 521 can include：Servo-actuated portion ontology 521a
With the servo-actuated portion's flange 521b of annular being arranged on servo-actuated portion's ontology 521a, it is servo-actuated the direction driving needle 51 of portion flange 521b
Drive surface 523 is provided on end face.Portion ontology 521a servo-actuated in this way can effectively enhance the structural reliability in servo-actuated portion 521, and
And can drive surface 523 be set on the end face of servo-actuated portion flange 521b, so as to reduce the design difficulty of drive surface 523,
The structural reliability of drive surface 523 can be improved.
Further, as shown in figure 3, drive surface limiting slot 523c can be provided in drive surface 523, the one of driving needle 51
End is located in drive surface limiting slot 523c.As a result, by setting drive surface limiting slot 523c, can to drive one end of needle 51
Cooperation can prevent one end of driving needle 51 from drive surface 523 at least to some extent in this way in drive surface limiting slot 523c
Middle disengaging can improve mobile reliability and stability of the driving needle 51 in drive surface 523.
Wherein, as shown in Figure 1, the first joint portion 41 can be with empty set in the second drive shaft 30.First set in this way connects
Conjunction portion 41 can be conducive to reduce the axial dimension of drive shaft locking system 100, and can be conducive to reduce drive shaft locking
The volume of device 100, in addition, can also be conducive to improve the arrangement reliability at the first joint portion 41 in this way.
Specifically, as shown in Fig. 2, the first joint portion 41 has multiple the first circumferentially distributed engagement teeth 411, second connects
Conjunction portion 42 has multiple the second circumferentially distributed engagement teeth 422.It is understood that when the first engagement tooth 411 and second connects
When closing tooth 422 and coordinating, the first joint portion 41 and the second joint portion 42 engage, by setting multiple first engagements teeth 411 and multiple
Second engagement tooth 422 can improve the cooperation reliability at the first joint portion 41 and the second joint portion 42.
Wherein, 51 and first joint portion of driving needle, 41 close fit.Pass through close fit, it is ensured that driving needle 51 and the
Cooperation reliability between one joint portion 41 can promote the functional reliability of drive shaft locking system 100.
A kind of power-driven system 1000 according to embodiments of the present invention is described below in detail.
As shown in Figure 4 and Figure 5, which can include the drive shaft for vehicle of above-described embodiment
Locking system 100, the first dynamotor D1 and the second dynamotor D2, the first dynamotor D1 and the first drive shaft 20
Transmission, and the first dynamotor D1 outputs power to one in pair of wheels, the second dynamotor D2 and second
Drive shaft 30 is driven, and the second dynamotor D2 outputs power to another in pair of wheels.Work as drive shaft in this way
When 100 the first drive shaft of locking 20 of locking system and the second drive shaft 30, two wheels rotate synchronously, when drive shaft locking system
When 100 non-the first drive shafts of locking 20 and the second drive shaft 30, the first dynamotor D1 and the second dynamotor D2 difference
It works independently to drive corresponding wheel with suitable rotational speed.
Wherein, as shown in figure 4, in power-driven system 1000, the drive shaft locking system 100 of above-described embodiment can be with
It is applied only in one group of wheel.Be provided between first dynamotor D1 and the near front wheel Z1 first gear c1, second gear c2,
Third gear c3, the 4th gear c4, the 5th gear c5 and the 6th gear c6, wherein, first gear c1 is fixed on the first electronic hair
On the motor shaft of motor D1, second gear c2 and first gear c1 engagements, second gear c2 are also coaxially fixed with third gear c3,
Third gear c3 is engaged with the 4th gear c4, and the 4th gear c4 is fixed in the first drive shaft 20, also solid in the first drive shaft 20
Surely there is the 5th gear c5, the 6th gear c6, the 5th gear c5 and the 6th gear c6 engagement are connected on the semiaxis of the near front wheel Z1, this
The power of the first dynamotor of sample D1 can pass to the near front wheel Z1 by above-mentioned three groups of meshed gears, and certainly, first drives
Moving axis 20 can also play the role of in transmittance process it is corresponding, and between first gear c1 and second gear c2, third tooth
It can play the role of slowing down between wheel c3 and the 4th gear c4 and increase square.
Certainly, the present invention is not limited thereto, as shown in figure 5, in power-driven system 1000, the driving of above-described embodiment
Axis locking system 100 can be applied in two groups of wheels.For example, drive shaft locking system 100 can be two, a drive shaft
Locking system 100 coordinates in the near front wheel Z1 and off-front wheel Y1, and the first dynamotor D1 and the drive shaft locking system
100 the first drive shaft 20 is driven, and the second drive shaft 30 of the second dynamotor D2 and the drive shaft locking system 100 pass
It is dynamic.
Another drive shaft locking system 100 coordinates in left rear wheel Z2 and off hind wheel Y2, and third dynamotor
The first drive shaft 20 of D3 and the drive shaft locking system 100 are driven, the 4th dynamotor D4 and the drive shaft locking system
100 the second drive shaft 30 is driven.
Specific embodiment to be shown in Fig. 1 and combination Fig. 4 below, is described in detail drive shaft according to embodiments of the present invention
The working process and principle of locking system 100.
In vehicle normal straight when driving, the first dynamotor D1 and the second dynamotor D2 individually work,
The controller of vehicle can control the first dynamotor D1 and the second dynamotor D2 in the same direction and synchronized work, left front in this way
Wheel Z1 and off-front wheel Y1 can at the same speed and rotate in same direction.
In vehicle normal turn when driving, controller can control the first dynamotor D1 and the second dynamotor D2
In the same direction and different rotating speeds, for example, when turning left, the rotating speed of the first dynamotor D1 can be less than the second dynamotor D2's
Rotating speed can cause the rotating speed of off-front wheel Y1 to be more than the rotating speed of the near front wheel Z1, realize.
During above-mentioned vehicle normal straight traveling and vehicle normal turn traveling, in the effect of elastic device 70
Under, one end of the driving needle 51 in drive shaft locking system 100 is at the minimum point for the drive surface 523 for being servo-actuated portion 521, this
When, driving needle 51 is in synchronous rotation state with servo-actuated portion 521.
When the stranded skidding of vehicle, driving device 50 works during hydraulic pressure, and the rotating speed of such brake component is suppressed, and drives needle
Speed discrepancy is generated between 51 and brake component, driving needle 51 slides in the drive surface 523 of brake component, and driving needle 51 can be from driving
The minimum point in face 523 slides into the position of peak or neighbouring peak, drives a side axle of the needle 51 to the first joint portion 41
To movement, so as to drive needle 51 that the first joint portion 41 can also be driven to move closer to the second joint portion 42, until the first joint portion
41 and second joint portion 42 engage, at this point, the first drive shaft 20 and the second drive shaft 30 rotate synchronously, so as to improve vehicle
Ability of getting rid of poverty.
After vehicle is got rid of poverty, elastic device is pushed to be moved axially to the direction far from the second joint portion 42, in the process,
Driving needle 51 is moved axially with the first joint portion 41, one end that driving needle 51 and drive surface 523 coordinate can from peak or
The position of neighbouring peak gradually slides into minimum point, at this point, the second joint portion 42 and the first joint portion 41 are kept completely separate, vehicle
It can be travelled according to above-mentioned vehicle normal straight and vehicle normal turn driving mode continues to travel.
Vehicle according to embodiments of the present invention, the power-driven system 1000 including above-described embodiment.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It is combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the different embodiments or examples described in this specification and the feature of different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (20)
1. a kind of drive shaft locking system for vehicle, which is characterized in that including：
Planetary gear mechanism, the planetary gear mechanism include sun gear, planetary gear, planet carrier and gear ring；
First drive shaft, the second drive shaft and power engagement device, the power engagement device include the first joint portion and second
Joint portion, wherein the planet carrier is connected respectively with first drive shaft and first joint portion so that the planet carrier,
First drive shaft and first joint portion rotate synchronously, and relatively described first drive shaft in first joint portion can
Be axially moveable, second drive shaft is connected with the sun gear and second joint portion so that second drive shaft,
Second joint portion and the sun gear rotate synchronously；
Fluid pressure type driving device, the fluid pressure type driving device include：Drive needle and fluid pressure type driving portion, the driving needle setting
Into around the center axis thereof of the sun gear and the gear ring being moved axially relatively with the gear ring, the driving needle
Both ends coordinate respectively with the fluid pressure type driving portion and first joint portion, and the fluid pressure type driving portion is arranged for driving
The driving needle drives first joint portion to be moved along the axial direction to the direction close to second joint portion, so as to make
It states the first joint portion and engages second joint portion.
2. the drive shaft locking system according to claim 1 for vehicle, which is characterized in that the planet carrier is two
And it is separately positioned on the both sides of the sun gear.
3. the drive shaft locking system according to claim 2 for vehicle, which is characterized in that two planet carriers point
For axial restraint planet carrier and axial movement planet carrier, the axial restraint planet carrier is fixed with first drive shaft, described
The axial movement relatively described axial restraint planet carrier of planet carrier can axially move, the axial movement planet carrier and described first
Joint portion is fixed.
4. the drive shaft locking system according to claim 3 for vehicle, which is characterized in that the planetary gear has row
Spider gear shaft, the planet wheel spindle is connected respectively with the axial restraint planet carrier and the axial movement planet carrier, wherein described
Planet wheel spindle is with the axial movement planet carrier to be slidably connected.
5. the drive shaft locking system according to claim 1 for vehicle, which is characterized in that be provided on the gear ring
Needle axial groove is driven, the driving needle is slidably disposed in the driving needle axial groove.
6. the drive shaft locking system according to claim 1 for vehicle, which is characterized in that further include：Elastic device,
The elastic device is resiliently arranged between first joint portion and second joint portion so that first joint portion
With the trend moved to the direction far from first joint portion.
7. the drive shaft locking system according to claim 1 for vehicle, which is characterized in that the fluid pressure type driving portion
Including：
Servo-actuated portion, the servo-actuated portion can be with the driving needle rotation, and the servo-actuated portion can be braked, and be set in the servo-actuated portion
Drive surface is equipped with, slip of the needle in the drive surface is driven to make the drive surface by described when the servo-actuated portion is braked
The driving needle is driven along the axial movement, so that second joint portion engages the first joint portion engagement.
8. the drive shaft locking system according to claim 7 for vehicle, which is characterized in that the fluid pressure type driving portion
It further includes：
Fluid pressure type braking parts, the fluid pressure type braking parts are arranged for braking the servo-actuated portion.
9. the drive shaft locking system according to claim 8 for vehicle, which is characterized in that the fluid pressure type braking parts
It is configured to hydraulic calipers；
The side in the servo-actuated portion is provided with brake disc, and the hydraulic calipers are used to brake the brake disc.
10. the drive shaft locking system according to claim 9 for vehicle, which is characterized in that the fluid pressure type braking
Pincers include the friction plate for clamping the brake disc.
11. the drive shaft locking system according to claim 7 for vehicle, which is characterized in that servo-actuated portion's empty set
In first drive shaft.
12. the drive shaft locking system according to claim 7 for vehicle, which is characterized in that the drive surface is oblique
Face or curved surface.
13. the drive shaft locking system according to claim 7 for vehicle, which is characterized in that the drive surface includes：
First segment and second segment, the first segment are connected with the second segment, and the junction of the first segment and the second segment is most
The other end far from the junction of low spot, the first segment and the second segment is peak.
14. the drive shaft locking system according to claim 13 for vehicle, which is characterized in that servo-actuated portion's packet
It includes：Servo-actuated portion's flange of servo-actuated portion's ontology and the annular being arranged on servo-actuated portion's ontology, the direction of servo-actuated portion's flange
The drive surface is provided on the end face of the driving needle.
15. the drive shaft locking system according to claim 7 for vehicle, which is characterized in that set in the drive surface
Drive surface limiting slot is equipped with, one end of the driving needle is located in the drive surface limiting slot.
16. the drive shaft locking system according to claim 1 for vehicle, which is characterized in that first joint portion
Empty set is in second drive shaft.
17. the drive shaft locking system according to claim 1 for vehicle, which is characterized in that first joint portion
With multiple the first circumferentially distributed engagement teeth, second joint portion has multiple the second circumferentially distributed engagement teeth.
18. the drive shaft locking system according to claim 1 for vehicle, which is characterized in that the driving needle and institute
State the first joint portion close fit.
19. a kind of power-driven system, which is characterized in that including：
The drive shaft locking system for vehicle according to any one of claim 1-18；
First dynamotor, first dynamotor are driven with first drive shaft and output power to a pair of of vehicle
One in wheel；
Second dynamotor, second dynamotor are driven with second drive shaft and output power to a pair of of vehicle
Another in wheel.
20. a kind of vehicle, which is characterized in that including power-driven system according to claim 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229074.8A CN108237906B (en) | 2016-12-27 | 2016-12-27 | Drive shaft locking device, power drive system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229074.8A CN108237906B (en) | 2016-12-27 | 2016-12-27 | Drive shaft locking device, power drive system and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108237906A true CN108237906A (en) | 2018-07-03 |
| CN108237906B CN108237906B (en) | 2020-11-20 |
Family
ID=62702833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611229074.8A Active CN108237906B (en) | 2016-12-27 | 2016-12-27 | Drive shaft locking device, power drive system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108237906B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895236A (en) * | 1987-02-02 | 1990-01-23 | Aisin-Warner Kabushiki Kaisha | Actuator for the frictional engaging device |
| US4950214A (en) * | 1988-05-05 | 1990-08-21 | Uni-Cardan Ag | Differential drive |
| US6561939B1 (en) * | 2001-11-06 | 2003-05-13 | Torque-Traction Technologies, Inc. | Gear module for clutch actuator in differential assembly |
| CN1661263A (en) * | 2004-02-25 | 2005-08-31 | 日产自动车株式会社 | Limited slip differential device |
| CN2906215Y (en) * | 2006-04-13 | 2007-05-30 | 李殿荣 | Differential locking device for belt-driving type roller tractor |
| CN104565278A (en) * | 2013-10-23 | 2015-04-29 | 伊顿公司 | Torque limiting differential |
-
2016
- 2016-12-27 CN CN201611229074.8A patent/CN108237906B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895236A (en) * | 1987-02-02 | 1990-01-23 | Aisin-Warner Kabushiki Kaisha | Actuator for the frictional engaging device |
| US4950214A (en) * | 1988-05-05 | 1990-08-21 | Uni-Cardan Ag | Differential drive |
| US6561939B1 (en) * | 2001-11-06 | 2003-05-13 | Torque-Traction Technologies, Inc. | Gear module for clutch actuator in differential assembly |
| CN1661263A (en) * | 2004-02-25 | 2005-08-31 | 日产自动车株式会社 | Limited slip differential device |
| CN2906215Y (en) * | 2006-04-13 | 2007-05-30 | 李殿荣 | Differential locking device for belt-driving type roller tractor |
| CN104565278A (en) * | 2013-10-23 | 2015-04-29 | 伊顿公司 | Torque limiting differential |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108237906B (en) | 2020-11-20 |
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