CN107448504A - Differential gear - Google Patents
Differential gear Download PDFInfo
- Publication number
- CN107448504A CN107448504A CN201710223872.8A CN201710223872A CN107448504A CN 107448504 A CN107448504 A CN 107448504A CN 201710223872 A CN201710223872 A CN 201710223872A CN 107448504 A CN107448504 A CN 107448504A
- Authority
- CN
- China
- Prior art keywords
- differential
- sliding component
- housing member
- engaging piece
- differential casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings
- F16D27/09—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings and with interengaging jaws or gear-teeth
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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
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
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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
- F16H48/24—Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive 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
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
- F16H48/34—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
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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
- F16H48/40—Constructional details characterised by features of the rotating cases
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Retarders (AREA)
Abstract
The present invention provides a kind of differential gear.Differential gear possess differential attachment, house differential attachment differential casing, between differential casing and differential attachment transmit driving force clutch mechanism.Clutch mechanism has the sliding component and actuator that can be axially moveable in differential casing.One end of the sliding component in axial direction has the first engaging piece, can move axially and can not rotate against relative to differential attachment.First and second housing member is combined into by differential casing, and the first housing member is provided integrally with the second engaging piece and the flange part for linking gear ring.When actuator operation, the first engaging piece is engaged with the second engaging piece, and differential casing is linked with sliding component in a manner of it can not rotate against.
Description
Technical field
The present invention relates to by the driving force of input by allow it is differential in a manner of from the differential gear of a pair of output links output.
Background technology
In the past, by the driving force of input from a pair of output links by allow it is differential in a manner of the differential gear that exports for example make
Used for the differential cross pin of vehicle.This differential gear presence can separate transmission of the driving force of input to output link
Structure.For example, referring to Japanese Unexamined Patent Publication 2015-87015 publications.
The differential gear that Japanese Unexamined Patent Publication 2015-87015 publications are recorded has：There are 2 by what the axle journal of shaft-like supported
The differential attachment of differential gearing and 2 side shaft gears；House the differential casing (housing) of differential attachment；Can rotatably it house
Carrier factor in differential carrier body；It is fixed on the second clutch portion of Carrier factor；It can be engaged with second clutch portion
First clutch portion；The actuator for making first clutch portion be axially moveable relative to second clutch portion.Welded from passing through
Or bolt link and be fixed on the drive gear of outer peripheral face and input driving force to differential casing.In Carrier factor, 2 borings are set
Hole, axle journal is inserted to the bore hole, and fixed by steady pin.
First clutch portion has annulus and the multiple axial projections axially protruded from annulus, axially projecting
The front end in portion is provided with the toothed ring segment engaged with second clutch portion.The annulus in first clutch portion is configured in differential mechanism
The outside of housing, axial projection are inserted through the axial hole formed in the side wall of differential casing.Thus, first clutch portion
Being connected to relative to differential casing can move axially relatively and can not rotate against.
By the action of actuator and first clutch portion to second clutch portion side move axially when, it is axially projecting
The toothed ring segment in portion engages with second clutch portion, and Carrier factor integratedly rotates with differential casing.Thus, from driving
Gear is to the driving force that differential casing inputs via first clutch portion, second clutch portion and Carrier factor to differential gearing
Transmit.
On the other hand, when actuator turns into non-action state, by back-moving spring make first clutch portion from second from
Clutch part from and release their engagement, Carrier factor can rotate against relative to differential casing.Thus, from differential mechanism
Transmission of the housing to the driving force of differential attachment is separated.
In the differential gear that Japanese Unexamined Patent Publication 2015-87015 publications are recorded, the driving force warp of differential casing is input to
Transmitted from the side wall to first clutch portion.However, on the side wall formed with multiple axles for inserting axial projection
Xiang Kong, therefore constructively it is difficult to ensure that intensity.That is, in order to ensure side wall intensity and by sufficient driving force to the first clutch
Transmit in device portion, it has to thicken the wall thickness of differential casing, the increase of weight and size can be caused.
The content of the invention
It can be switched on or switched off driving force transmission it is an object of the present invention to provide one kind and differential mechanism can be suppressed
The differential gear of the increase of the weight and size of housing.
The differential gear of the mode of the present invention includes：
Differential attachment, will enter into the driving force of input link by allow it is differential in a manner of be assigned to a pair of output links；
Differential casing, house the differential attachment；And
Clutch mechanism, the drive is transmitted between the differential casing and the input link of the differential attachment
Power, wherein,
The clutch mechanism has：Sliding component, it is configured in the differential carrier body relative to the differential machine
Structure can be relatively moved on the central axis direction of the rotation axis along the differential casing and can not rotated against；And promote
Dynamic device, the locomotivity to the central axis direction is assigned to the sliding component, the sliding component has the first engaging piece, institute
State the first engaging piece to be arranged on the one end of the central axis direction and there are multiple engaging tooths, the differential casing will be multiple
Housing member is combined into, and the first housing member in the multiple housing member has：Second engaging piece, is formed at described
The position relative with first engaging piece and there are multiple engaging tooths on central axis direction；And junction surface, for the differential
The engagement of input gear that device housing rotates integrally, by the action of the actuator and it is failure to actuate to switch connecting state and not connect
Knot state, the connecting state are that first engaging piece engages and the sliding component in the circumferential with second engaging piece
The state linked with the differential casing in a manner of it can not rotate against, the not connecting state be the sliding component with
The state that the differential casing can rotate against.
According to the differential gear of aforesaid way, the increase of the weight and size of differential casing can be suppressed and make driving force
Transmission is switched on or switched off.
Brief description of the drawings
Before address feature of the invention and advantage described later by the explanation of following embodiment and referring to the drawings
And it is clear and definite, wherein, identical label represents identical part.
Fig. 1 is the sectional view of the configuration example for the differential gear for representing the first embodiment of the present invention.
Fig. 2 is the exploded perspective view of differential gear.
Fig. 3 is the stereogram for the sliding component for representing differential gear.
Fig. 4 is the stereogram for the differential attachment for representing differential gear.
Fig. 5 is the exploded perspective view of differential attachment.
Fig. 6 is by the sectional view of a part of enlarged representation of differential gear.
Fig. 7 A are the explanation figures for the action for representing differential gear, show the state that actuator is failure to actuate.
Fig. 7 B are the explanation figures for the action for representing differential gear, show the state of actuator operation.
Fig. 8 is the exploded perspective view for representing the differential attachment of second embodiment of the present invention together with sliding component.
Fig. 9 is by the first of differential attachment to the 3rd mill pinlon axle and the section one of the first supporting member and the second supporting member
Act the partial sectional view represented.
Figure 10 is the pie graph of the mill pinlon supporting member as input link for the differential attachment for representing present embodiment.
Embodiment
On the first embodiment of the present invention, illustrated referring to figs. 1 to Fig. 7 B.
Fig. 1 is the sectional view of the configuration example for the differential gear for representing the first embodiment of the present invention.Fig. 2 is differential gear
Exploded perspective view.Fig. 3 is the stereogram for the sliding component for representing differential gear.Fig. 4 is the differential attachment for representing differential gear
Stereogram.Fig. 5 is the exploded perspective view of differential attachment.Fig. 6 is by the sectional view of a part of enlarged representation of differential gear.Figure
7A is the explanation figure for the action for representing differential gear, shows the state that actuator is failure to actuate.Fig. 7 B are to represent moving for differential gear
The explanation figure of work, the state of actuator operation is shown.
The differential gear 1 in order to by the driving force of the driving sources such as the engine of vehicle by allow it is differential in a manner of it is defeated to a pair
Shaft is distributed and used.More specifically, the differential gear 1 of present embodiment is equipped on four-wheel drive vehicle, the four-wheel drive vehicle
Possess the pair of right and left main drive wheel (such as front-wheel) for the driving force for being passed driving source all the time and passed according to transport condition
The pair of right and left auxiliary drive wheels (such as trailing wheel) of the driving force of driving source are passed, the differential gear 1 is normally used as driving to auxiliary
The differential cross pin of the wheel distribution driving force of the left and right of driving wheel.In the case where only transmitting driving force to main drive wheel, vehicle
As two wheel drive states, in the case where transmitting driving force to main drive wheel and auxiliary drive wheels, vehicle turns into four-wheel drive
State.Differential gear 1 is under four-wheel drive state, the drive shaft point by the driving force of input to the left and right of auxiliary drive wheels side
Match somebody with somebody.
Differential gear 1 possesses：It is the differential casing 2 that can be rotated by differential carrier (not shown) supporting；It is contained in
The differential attachment 3 of differential casing 2；Transmit driving force with being switched on or switched off between differential casing 2 and differential attachment 3
Clutch mechanism 4.The lubricating oil being lubricated to differential attachment 3 is imported to the inside of differential casing 2.
Differential attachment 3 has the mill pinlon axle 30 as input link, be supported to can be around the rotation of differential casing 2
Multiple (4) mill pinlons 31, a pair of the side gears 32 as a pair of output links of axes O rotation.Multiple offsides of mill pinlon 31 and one
Gear 32 is made up of bevel gear, is made gear shaft orthogonal and is intermeshed.The drive shaft of the left and right side that can not rotate against respectively
Formula is linked to a pair of side gears 32.It should be noted that in mill pinlon 31 and side gear 32 formed with multiple gear teeth, but scheming
2nd, in 4,5, the diagram of these gear teeth is omitted.
Differential attachment 3 will enter into the driving force of mill pinlon axle 30 by allow it is differential in a manner of export to a pair of drive shafts.
In present embodiment, differential attachment 3 has 2 e axle supporting of mill pinlon 31 sheding baby teeth in a side in a pair of mill pinlon axles, 30,4 mill pinlons 31
Wheel shaft 30, other 2 e axle supportings of mill pinlon 31 are in the mill pinlon axle 30 of the opposing party.
As shown in figure 5, each mill pinlon axle 30 is provided integrally with what is engaged with the sliding component 5 of clutch mechanism 4 described later
A pair of engaged parts 301, a pair of mill pinlon supports 302 for being inserted through mill pinlon 31, the link for linking a pair of mill pinlon supports 302
Portion 303, is integrally formed into shaft-like.A pair of engaged parts 301 are arranged on the both ends of mill pinlon axle 30, and linking part 303, which is arranged on, sheds baby teeth
The axial central portion of wheel shaft 30.A pair of mill pinlon supports 302 are arranged on the respective and linking part 303 of a pair of engaged parts 301
Between, e axle supporting is carried out to mill pinlon 31.
It is intermeshed at the central portion of a pair of mill pinlon axles 30 axially.Specifically, a side mill pinlon axle 30 one
To the linking part 303 for the mill pinlon axle 30 that the opposing party is fitted together in the recess 300 that is formed between mill pinlon support 302, and in the opposing party
Mill pinlon axle 30 a pair of mill pinlon supports 302 between be fitted together in the recess 300 that is formed a side mill pinlon axle 30 linking part
303.In the case of the rotation axis O observations along differential casing 2, a pair of mill pinlon axles 30 are mutually orthogonal.
Clutch mechanism 4 has the cunning that can be moved on the central axis direction along the rotation axis O of differential casing 2
Dynamic component 5, the actuator 6 for applying the locomotivity to central axis direction to sliding component 5 and configuration are in sliding component 5 with actuating
Pressing member 7 between device 6.Sliding component 5 is configured in the inner side of differential casing 2.Actuator 6 is configured in differential casing 2
Outside.Pressing member 7 transmits the locomotivity of actuator 6 to sliding component 5.Sliding component 5 is from pressing member 7 to central shaft
Direction presses and moved.
Sliding component 5 is its center axis cylindrical shape consistent with the rotation axis O of differential casing 2, is configured to relative
It can relatively move and relative can not revolve on the central axis direction along the rotation axis O of differential casing 2 in differential attachment 3
Turn.Moreover, sliding component 5 is to steel by being forged to be formed, as shown in figure 3, being provided integrally with：Centrally disposed axle side
To one end the first engaging piece 51 with multiple engaging tooths 510；It is prominent to the interior side of the first engaging piece 51 and set
The inward flange portion 52 of ring-type；And the cylindrical portion 53 formed with the holding section 530 circumferentially engaged with mill pinlon axle 30.First engaging piece
51 circumferentially engage with being arranged at the second engaging piece 211 (aftermentioned) of differential casing 2.Holding section 530 penetrates cylindrical portion 53
Between inner and outer circumferential surfaces, the groove as the central axis direction extension along sliding component 5 is formed.
Engage in the engaged part 301 that the both ends of mill pinlon axle 30 are set with holding section 530.By mill pinlon axle 30 by card
Conjunction portion 301 engages with the holding section 530 of sliding component 5, so as to which sliding component 5 is sheded baby teeth relative to e axle supporting in the multiple of mill pinlon axle 30
Wheel 31 can be relatively moved along central axis direction and can not rotated against.Rotation of multiple mill pinlons 31 around differential casing 2
Axes O rotates (revolution) together with sliding component 5.In the present embodiment, in order that respective the two of a pair of mill pinlon axles 30
The engaged part 301 of end set engages with sliding component 5, and forms 4 holding sections 530 in cylindrical portion 53.
As shown in Figure 7 A, 7 B, in the back side 31a and the inner peripheral surface 53a of the cylindrical portion 53 of sliding component 5 of multiple mill pinlons 31
Between be configured with packing ring 33.The inner surface 33a relative with the back side 31a of mill pinlon 31 of packing ring 33 is partial sphere planar, with slip
The outer surface 33b that the inner peripheral surface 53a of the cylindrical portion 53 of component 5 is relative is plane.When mill pinlon 31 centered on mill pinlon axle 30 and
When rotating (rotation), the back side 31a of mill pinlon 31 is slided on the inner surface 33a of packing ring 33.Moreover, when sliding component 5 relative to
Mill pinlon axle 30 along central axis direction move when, the outer surface 33b of the inner peripheral surface 53a of the cylindrical portion 53 of sliding component 5 in packing ring 33
Upper slip.
In addition, sliding component 5 cylindrical portion 53 formed with multiple opening portions 531 for making lubricating oil flow.At this
In embodiment, 4 opening portions 531 first-class alternately form in the circumference of cylindrical portion 53.Moreover, opening portion 531 is radially passed through
Logical cylindrical portion 53, and opened wide to the other end of the opposite side of the first engaging piece 51.But the shape and number of opening portion 531
It is not limited thereto, can suitably makes shape distortion and increase and decrease number.
The inward flange portion 52 of sliding component 5 has the bearing plane of the ring-type for the active force for bearing force application component 81 described later
52a.Moreover, in multiple projections 821 (reference picture 2) of the interior lip portions 52 formed with the holding member 82 with keeping force application component 81
Chimeric multiple fitting portions 520 respectively.Fitting portion 520 is formed in bearing plane 52a inner side.
Pressing member 7 has：With the axial end of the opposite side of the first engaging piece 51 of the cylindrical portion 53 of sliding component 5
The annular portion 71 that 53b is abutted；The multiple axle portions for extending parallel to set from the rotation axis O of annular portion 71 and differential casing 2
72.In the present embodiment, 3 axle portions 72 are provided with pressing member 7.Pressing member 7 carries out punch process to steel plate and formed,
Inwardly lateral bending is rolled over for the leading section (end of the opposite side of the base end part of the side of annular portion 71) of axle portion 72.
Actuator 6 has：The ring in the moulded resin portion 612 moulded with coil windings 611 and to coil windings 611
The electromagnet 61 of shape；As by the energization to coil windings 611 and the yoke 62 of the magnetic circuit of the magnetic flux of caused electromagnet 61；
The armature 63 for carrying out sliding contact with moulded resin portion 612 and being directed along the rotation axis O directions of differential casing 2.Mould
The section along rotation axis O of resin portion 612 processed is shaped as rectangular shape.Armature 63 is by using to coil windings 611
Energization and caused magnetic force, sliding component 5 is engaged to the first engaging piece 51 with the second engaging piece 211 of differential casing 2
Direction movement.Sliding component 5 makes the first engaging piece 51 and by the locomotivity of the actuator 6 transmitted via pressing member 7
Two engaging pieces 211 engage.
From control device (not shown) via electric wire 610 (reference picture 2) exciting current is supplied to coil windings 611.Actuate
Device 6 to coil windings 611 by supplying exciting current to act.Actuator 6 is configured in the outside of differential casing 2, thus to
The electric current supply of coil windings 611 is easier.Yoke 62 is made up of soft magnetic metals such as mild steel, as shown in fig. 6, integratedly
Cylindrical portion 621 with the inner peripheral surface 612b from the Overmolded resin portion 612 in inner side, the axial one end from cylindrical portion 621
The axial end 612c of prominent and Overmolded resin portion 612 lip portions 622 outward.The internal diameter of cylindrical portion 621 is formed
The external diameter of the differential casing 2 of the part more relative than with the inner peripheral surface 621a of cylindrical portion 621 is slightly larger.
Cylindrical portion 621 inner peripheral surface 621a formed with annular recessed portion 620, the annular recessed portion 620 and pass through pressure pin 83
And multiple (the being in the present embodiment 3) plates 84 being made up of nonmagnetic material for being fixed on differential casing 2 are chimeric.Yoke 62
Axial movement relative to differential casing 2 is limited by the way that plate 84 is chimeric with annular recessed portion 620.The axle of annular recessed portion 620
Being formed to width must be bigger than the thickness of plate 84, to avoid producing rotation resistance between yoke 62 when differential casing 2 rotates
Power.
Stop collar 64 is fixed with the end of the side opposite with lip portions 622 of the cylindrical portion 621 of yoke 62.Stop collar
64 are made up of nonmagnetic metal such as austenite stainless steels, are provided integrally with and are fixed on the annulus 641 of yoke 62, in circumference
A pair of juts 642 for being axially protruded at two from annulus 641, from the leading section of jut 642 folding that turns back of ground at an acute angle
Go back to portion 643.A pair of juts 642 of stop collar 64 are prevented from rotating engaging in differential carrier (not shown).Annulus 641
Such as yoke 62 is fixed on by welding.
Armature 63 is made up of soft magnetic metals such as mild steel, is provided integrally with the ring-type in the configuration of the periphery of electromagnet 61
Outer portion 631 and the axially opposed side plate 632 of electromagnet 61.Outer portion 631 is the circle from outer circumferential side covering electromagnet 61
Tubular.Axial one end inwardly projecting of the side plate 632 from outer portion 631.Side plate 632 and moulded resin portion 612
Axial end 612d (end face with the axially opposite end face 612c of the lip portions 622 of yoke 62 opposite side), stop collar 64
The axial end 621b of the cylindrical portion 621 of annulus 641 and yoke 62 is relative in the axial direction.
The inner peripheral surface 631a of the outer portion 631 of armature 63 is contacted and is supported on the outer peripheral face 612a in moulded resin portion 612
Electromagnet 61.When armature 63 is axially moveable, the outer peripheral face of the inner peripheral surface 631a of outer portion 631 in moulded resin portion 612
Slided on 612a.
As shown in Fig. 2 the engaging engaged on the side plate 632 of armature 63 formed with the jut 642 with stop collar 64
Hole 632a, make electric wire inserting hole 632b and make the multiple of lubricating oil flow (be in the example shown in Fig. 2 that electric wire 610 inserts
9) oilhole 632c.Moreover, the end abutment of the leading section of the axle portion 72 of pressing member 7 and the inner circumferential side of side plate 632.Armature
63 prevent from coming off from stop collar 64 by the reflex part 643 of stop collar 64, and pass through jut 642 and connecting hole 632a cards
Close to prevent from rotating relative to differential carrier.The jut 642 of stop collar 64 insert connecting hole 632a and engaging in differential mechanism
Carrier.
Differential casing 2 is by along rotation axis O directions arranged side by side the first housing member 21 and the knot of the second housing member 22
Close.Ring is each configured between the housing member 21 of a pair of side gears 32 and first and the second housing member 22 of differential attachment 3
The packing ring 34 of tabular.
Second housing member 22 is the bottomed cylindrical for housing differential attachment 3 and sliding component 5, is provided integrally with cylindrical shape
Cylindrical portion 221, the one end inwardly projecting from the side opposite with the end of the side of the first housing member 21 of cylindrical portion 221
Wall portion 222, the flange part 223 that is protruded outward from the other end of cylindrical portion 221.Electromagnet 61 and yoke 62 are configured in circle
Corner between cylinder portion 221 and wall portion 222.
In cylindrical portion 221 formed with the multiple oilhole 221a for making lubricating oil flow.In wall portion 222 formed with for that will actuate
Multiple (3) the inserting hole 222a and be provided with the mode and one that can not be rotated against that the locomotivity of device 6 transmits to sliding component 5
The shaft insertion hole 222b that the drive shaft linked to the side gear 32 of the side in side gear 32 is inserted.In inserting hole 222a respectively
Insert multiple axle portions 72 of pressing member 7.Multiple inserting hole 222a and shaft insertion hole 222b are along the side parallel with rotation axis O
To interpenetrating walls portions 222.
First housing member 21 is for example shaped by forging, is the disk for covering the opening of the second housing member 22
Shape, the second engaging piece 211 and flange part 212 are provided integrally with, second engaging piece 211 has multiple engaging tooths 210, the flange
Docked with the flange part 223 of the second housing member 22 in portion 212.Second engaging piece 211 is formed at the center along sliding component 5
The direction of principal axis position relative with the first engaging piece 51.Sliding component 5 configure the second engaging piece 211 in the first housing member 21 with
Between the wall portion 222 of second housing member 22.Moreover, in the first housing member 21 formed with the mode for being provided with rotating against
The shaft insertion hole 21a of the drive shaft insertion linked with the side gear 32 of the opposing party in a pair of side gears 32.
From the gear ring as input gear being fixed on the flange part 212,223 of first and second housing member 21,22
23 (reference pictures 1) input driving force to differential casing 2.Flange part 212,223 plays as the junction surface engaged for gear ring 23
Function.In the present embodiment, by the first housing member 21 flange part 212 formed multiple bolt insertion hole 212a
And multiple binder bolts that multiple bolt insertion hole 223a of the formation of flange part 223 in the second housing member 22 are inserted respectively
24, gear ring 23 is fixed into and rotated integrally with differential casing 2.The housing member of head 241 and first of binder bolt 24
21 flange part 212 abuts, be inserted into bolt insertion hole 212a, 223a formed with externally threaded axle portion 242 and with gear ring 23
Screwed hole 23a is screwed togather.
It should be noted that as the fixed cell that gear ring 23 is fixed on to differential casing 2, it is not limited to which bolt connects
Knot, gear ring 23 can also be fixed on the first housing member 21 for example, by welding.In this case, first housing member 21
The position of welding gear ring 23 turns into junction surface.
First housing member 21 and the second housing member 22 are combined by multiple joint bolts 25 (reference picture 2).At this
In embodiment, before gear ring 23 is linked, the first housing member 21 and the second housing member 22 pass through 4 joint bolts 25
And combine.In fig. 2, it is illustrated that 3 joint bolts 25 therein.Joint bolt 25 is inserted into the convex of the second housing member 22
Edge 223 formed bolt insertion hole 223b and the screwed hole 212b with being formed in the first housing member 21 is screwed togather.
The force structure being made up of elastomer is configured between the first housing member 21 and the inward flange portion 52 of sliding component 5
Part 81 and the holding member 82 for keeping force application component 81.Holding member 82 has the main part 820 of ring-type and from the court of main part 820
To prominent 3 raised 821 of the wall portion 222 of the second housing member 22.Moreover, holding member 82 by projection 821 with sliding
The fitting portion 520 that the inward flange portion 52 of component 5 is formed is chimeric, and is prevented from rotating relative to sliding component 5.
Force application component 81 is compressed by the action of actuator 6 along the central axis direction of sliding component 5.Sliding component
5 are exerted a force from the recuperability (active force) of force application component 81 to the side of wall portion 222 of the second housing member 22.Force application component 81 for example by
Helical spring is formed, but be not limited to that this, can also form force application component 81 by rubber.Moreover, in this embodiment party
In formula, force application component 81 is disposed on the ring-type between the cylindrical portion 221 of the housing member 22 of differential attachment 3 and second, but simultaneously
This is not limited to, force application component can also be respectively configured at the multiple positions relative with the inward flange portion 52 of sliding component 5.
Differential gear 1 is by the action of actuator 6 and is failure to actuate, to switch the first engaging piece 51 and the second engaging piece 211
Circumferentially engage and connecting state that sliding component 5 and differential casing 2 link in a manner of it can not rotate against and slide structure
The not connecting state that part 5 can rotate against with differential casing 2.
Fig. 7 A are the partial sectional views for the differential gear 1 when being failure to actuate for representing actuator 6.Fig. 7 B are to represent actuator 6
Action when differential gear 1 partial sectional view.
Do not supply when being failure to actuate of actuator 6 of exciting current to the coil windings 611 of electromagnet 61, pass through the structure that exerts a force
The recuperability of part 81 and sliding component 5 moves to the side of wall portion 222 of the second housing member 22, the first engaging piece 51 engages with second
The engagement in portion 211 is released from.Moreover, armature 63 is in the no power of electromagnet 61, by via sliding component 5 and pressing member
7 transmit force application components 81 recuperability and return to from wall portion 222 separate initial position.
In the actuator 6 when being failure to actuate, differential casing 2 can rotate against with sliding component 5, therefore from differential mechanism
Transmission of the housing 2 to the driving force of differential attachment 3 is separated.Thus, the driving force inputted from gear ring 23 to differential casing 2 is not
To drive shaft transmission, vehicle turns into two wheel drive states.
When supplying exciting current to the coil windings 611 of electromagnet 61, by the magnetic force of electromagnet 61, armature 63 is along axle
To movement, so that axial end 621b (reference picture 6) of the side plate 632 of armature 63 close to the cylindrical portion 621 of yoke 62.By
This, pressing member 7 presses sliding component 5 to the side of the first housing member 21, and the first engaging piece 51 is nibbled with the second engaging piece 211
Close.Specifically, pressing member 7 receives the locomotivity of armature 63 from the leading section of axle portion 72, and structure will be slided by the locomotivity
Part 5 presses to the side of the first housing member 21.Now, the annular portion 71 of pressing member 7 and the first of the cylindrical portion 53 of sliding component 5
The axial end 53b of the opposite side of engaging piece 51 is abutted.
When the first engaging piece 51 engages with the second engaging piece 211, the first housing structure from gear ring 23 to differential casing 2
The driving force that part 21 inputs is via sliding component 5, a pair of mill pinlon axles, 30,4 mill pinlons 31 and a pair of side gears of differential attachment 3
32 turn into four-wheel drive state to drive shaft transmission, vehicle.
The axial position of armature 63 is detected by position sensor 10, and its detection signal is sent to control device.Position passes
The supporting mass 12 that sensor 10 has contact 11, supported to contact 11.Contact 11 can be with differential mechanism relative to supporting mass 12
The rotation axis O of housing 2 is abreast moved forward and backward, and its leading section flexibly contacts with the side plate 632 of armature 63.Supporting mass 12
It is fixed on differential carrier.Control device can identify the position of armature 63 by the detection signal of position sensor 10, thus,
It can determine that whether the first engaging piece 51 engages with the second engaging piece 211.
Control device can make cunning when making actuator 6 turn into operating state from non-action state, to the supply of electromagnet 61
The exciting current for the big current value that dynamic component 5 rapidly moves, then, when being determined as the first engaging piece 51 and the second engaging piece
During 211 engagement, the current value of exciting current is reduced to be able to maintain that the first engaging piece 51 and the second engaging piece 211 engage shape
The smaller current value of the degree of state.Thereby, it is possible to realize the reduction of consumption electric power.
First embodiment from the description above, differential casing 2 is by the first housing member 21 and the second housing member
22 are combined into, and the first housing member 21 is provided integrally with the flange part 212 for linking gear ring 23 and first with sliding component 5
The second engaging piece 221 that engaging piece 51 engages.Thus, from gear ring 23 input driving force only via first and second housing member
21st, the first housing member 21 in 22 transmits to sliding component 5, is transmitted from sliding component 5 to the mill pinlon axle 30 of differential attachment 3.
Therefore, do not include in the bang path of driving force formed with the multiple inserting holes for inserting multiple axle portions 72 of pressing member 7
The wall portion 222 of 222a the second housing member 22.Thereby, it is possible to the increase for the weight and size for suppressing differential casing 2, and lead to
Crossing the axial movement of sliding component 5 can be switched on or switched off driving force transmission.
Next, the differential gear on second embodiment of the present invention, reference picture 8 and Fig. 9 are illustrated.This implementation
The differential gear of mode is in addition to the structure of the input link of differential attachment is with first embodiment difference, with the first embodiment party
The differential gear 1 of formula is similarly formed, therefore the part different to its illustrates.Moreover, in Fig. 8 and Fig. 9, on
The common member of formation of one embodiment, marks same label and the repetitive description thereof will be omitted.
Fig. 8 is the exploded perspective view for representing the differential attachment 3A of present embodiment together with sliding component 5.Fig. 9 be by
The first of differential attachment 3A is to the 3rd mill pinlon axle 35~37 and the section one of the first supporting member 381 and the second supporting member 382
Act the partial sectional view represented.
The differential attachment 3A of present embodiment has the first to the 3rd mill pinlon axle 35~37 of shaft-like, and 4 mill pinlons 31 are by upper
State the first to the 3rd mill pinlon axle 35~37 and carry out e axle supporting.It should be noted that in fig. 8, omit what is engaged with 4 mill pinlons 31
The diagram of a pair of side gears 32.First to the 3rd mill pinlon axle 35~37 is differential attachment 3A input link respectively.It is moreover, differential
Mechanism 3A has the first supporting member 381 and the second supporting member 382 supported to the first to the 3rd mill pinlon axle 35~37.
First mill pinlon axle 35 is provided integrally with：A pair of the engaged parts 351 engaged with the holding section 530 of sliding component 5；Insert
Pass through a pair of mill pinlon supports 352 of mill pinlon 31；The linking part 353 that a pair of mill pinlon supports 352 are linked.Second mill pinlon axle 36
There is the engaged part 361 that engage with the holding section 530 of sliding component 5 in the end of a side, the end of the opposing party with
The linking part 353 of first mill pinlon axle 35 touches portion 363 to supporting for touching.Moreover, the second mill pinlon axle 36 touches portion in engaged part 361 with supporting
There is the mill pinlon support 362 for being inserted through mill pinlon 31 between 363.
3rd mill pinlon axle 37 and the second mill pinlon axle 36 are same, have the holding section 530 with sliding component 5 in the end of a side
The engaged part 371 of engaging, and have in the end of the opposing party and supporting of touching is supported with the linking part 353 of the first mill pinlon axle 35 touch portion
373, it is inserted through the mill pinlon support 372 of mill pinlon 31 in engaged part 371 and to having between portion of touching 373.
First to the 3rd mill pinlon axle 35~37 is inserted through in the inserting hole 381a of the first supporting member 381 formation and second
The inserting hole 382a that supporting member 382 is formed.First supporting member 381 is cylindrical shape, is configured in the inner side of sliding component 5.The
Two supporting members 382 are square tube shape, are configured in the inner side of the first supporting member 381.4 mill pinlons 31 are configured in the first supporting member
381 and second between supporting member 382.
In addition, the first to the 3rd mill pinlon axle 35~37 is prevented relative to the first supporting member 381 by 4 pins 383
Rotation.In fig. 8, it is illustrated that 3 pins 383 therein.In the first supporting member 381 formed with making what 4 pins 383 were inserted respectively
4 pin inserting hole 381b and 4 oilhole 381c for making lubricating oil flow.Moreover, in the first mill pinlon axle 35,2 pin inserting holes
35a is formed between engaged part 361 and mill pinlon support 362, in second and third mill pinlon axle 36,37, there is 1 pin respectively
Inserting hole 36a, 37a are formed between engaged part 361,371 and mill pinlon support 362,372.4 pins 383 be for example pressed into and
It is fixed on above-mentioned pin inserting hole 381b, 35a, 36a, 37a.
By present embodiment, the functions and effects same with first embodiment can be also obtained.
Next, the differential gear on third embodiment of the present invention, reference picture 10 illustrates.Present embodiment
Differential gear in addition to structure and the first embodiment difference of the input link of differential attachment, with first embodiment
Differential gear 1 is similarly formed, therefore the part different to its illustrates.Moreover, in Fig. 10, on the first embodiment party
The common member of formation of formula, marks same label and the repetitive description thereof will be omitted.
Figure 10 is the pie graph of the mill pinlon supporting member 39 as input link for the differential attachment for representing present embodiment.
In the present embodiment, the mill pinlon supporting member 39 supported to mill pinlon 31 has 4 axle portions 391 and by this 4 axle portion 391
Interconnected linking part 392.Each axle portion 391 have the engaged part 391a that engages with the holding section 530 of sliding component 5 and
The mill pinlon support 391b of e axle supporting is carried out to mill pinlon 31.So, mill pinlon supporting member 39 in 4 axle portions 391 radially
Set and crosswise is integrally formed as under central axis direction observation, respective end and the sliding component 5 of 4 axle portions 391
Holding section 530 engages, and 4 axle portions 391 carry out e axle supporting to mill pinlon 31 respectively.
By present embodiment, the functions and effects same with first embodiment can be also obtained.
Claims (4)
1. a kind of differential gear, including：
Differential attachment, will enter into the driving force of input link by allow it is differential in a manner of be assigned to a pair of output links；
Differential casing, house the differential attachment；And
Clutch mechanism, the driving is transmitted between the differential casing and the input link of the differential attachment
Power, wherein,
The clutch mechanism has：Sliding component, it is configured in the differential carrier body relative to the differential attachment energy
It is enough to relatively move and rotate against on the central axis direction of the rotation axis along the differential casing；And actuate
Device, the locomotivity to the central axis direction is assigned to the sliding component,
The sliding component has the first engaging piece, and first engaging piece is arranged on the one end and tool of the central axis direction
There are multiple engaging tooths,
Multiple housing members are combined into by the differential casing, the first housing member tool in the multiple housing member
Have：Second engaging piece, it is formed at relative with first engaging piece position on the central axis direction and is nibbled with multiple
Close tooth；And junction surface, engaged for the input gear rotated integrally with the differential casing,
By the action of the actuator and it is failure to actuate to switch connecting state and not connecting state, the connecting state is described
First engaging piece and second engaging piece engage in the circumferential and the sliding component and the differential casing with can not phase
The state linked to the mode of rotation, the not connecting state are that the sliding component being capable of relative rotation with the differential casing
The state turned.
2. differential gear according to claim 1, wherein,
The clutch mechanism is configured to, and the sliding component configuration is matched somebody with somebody in the inner side of the differential casing and the actuator
Put in the outside of the differential casing, the locomotivity of the actuator is via configuration in the actuator and the slip
Pressing member between component to the sliding component transmission,
The second housing member in the multiple housing member has the wall portion formed with multiple inserting holes, in the described second engagement
The sliding component is configured between portion and the wall portion,
The pressing member has the multiple axle portions for being inserted through the multiple inserting hole respectively.
3. differential gear according to claim 2, wherein,
The input gear is fixed on the differential casing by multiple bolts,
First housing member and second housing member have formed with for the multiple of the multiple bolt insert respectively
The flange part of bolt insertion hole.
4. the differential gear according to Claims 2 or 3, wherein,
Second housing member is houses the bottomed cylindrical of the differential attachment and the sliding component, second housing
The opening of component is covered by first housing member.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-077430 | 2016-04-07 | ||
| JP2016-077429 | 2016-04-07 | ||
| JP2016077430A JP6711093B2 (en) | 2016-04-07 | 2016-04-07 | Differential |
| JP2016077429A JP6662161B2 (en) | 2016-04-07 | 2016-04-07 | Differential device |
| JP2016077431A JP6776586B2 (en) | 2016-04-07 | 2016-04-07 | Differential |
| JP2016-077431 | 2016-04-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107448504A true CN107448504A (en) | 2017-12-08 |
| CN107448504B CN107448504B (en) | 2020-06-16 |
Family
ID=59929519
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710223872.8A Expired - Fee Related CN107448504B (en) | 2016-04-07 | 2017-04-07 | Differential gear |
| CN201710223547.1A Pending CN107435722A (en) | 2016-04-07 | 2017-04-07 | Differential gear |
| CN201710224219.3A Expired - Fee Related CN107435723B (en) | 2016-04-07 | 2017-04-07 | Differential gear |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710223547.1A Pending CN107435722A (en) | 2016-04-07 | 2017-04-07 | Differential gear |
| CN201710224219.3A Expired - Fee Related CN107435723B (en) | 2016-04-07 | 2017-04-07 | Differential gear |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN107448504B (en) |
| DE (3) | DE102017107219A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112534161B (en) * | 2018-04-16 | 2024-08-23 | 莱纳玛公司 | Differential disconnect assembly |
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| US20070135254A1 (en) * | 2005-12-14 | 2007-06-14 | Os Giken Co., Ltd. | Differential gears |
| JP2014009747A (en) * | 2012-06-29 | 2014-01-20 | Gkn Driveline Japan Ltd | Differential device |
| CN105317965A (en) * | 2014-07-31 | 2016-02-10 | 美国轮轴制造公司 | Axle disconnect assembly |
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| US6796412B2 (en) * | 2001-12-27 | 2004-09-28 | Tochigi Fuji Sangyo Kabushiki Kaisha | Differential apparatus |
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- 2017-04-04 DE DE102017107219.5A patent/DE102017107219A1/en not_active Withdrawn
- 2017-04-04 DE DE102017107218.7A patent/DE102017107218A1/en not_active Withdrawn
- 2017-04-04 DE DE102017107217.9A patent/DE102017107217A1/en not_active Withdrawn
- 2017-04-07 CN CN201710223872.8A patent/CN107448504B/en not_active Expired - Fee Related
- 2017-04-07 CN CN201710223547.1A patent/CN107435722A/en active Pending
- 2017-04-07 CN CN201710224219.3A patent/CN107435723B/en not_active Expired - Fee Related
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| US20070135254A1 (en) * | 2005-12-14 | 2007-06-14 | Os Giken Co., Ltd. | Differential gears |
| JP2014009747A (en) * | 2012-06-29 | 2014-01-20 | Gkn Driveline Japan Ltd | Differential device |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102017107218A1 (en) | 2017-10-12 |
| CN107435722A (en) | 2017-12-05 |
| DE102017107217A1 (en) | 2017-10-12 |
| CN107448504B (en) | 2020-06-16 |
| CN107435723B (en) | 2021-08-03 |
| DE102017107219A1 (en) | 2017-10-12 |
| CN107435723A (en) | 2017-12-05 |
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