CN208966909U - Gearshift for motor vehicle transmission - Google Patents

Abstract

The utility model relates to the gearshifts for motor vehicle transmission, include: around gearbox axis (A) relative to each other rotatable first and second speed changes box part (32,34), be connected to the first speed change box part (32) and drag ring (36), multiple first discs (40) and multiple second discs (42) including conical friction surface (38).First and second discs form multidisc clutch (44), first disc is connected to synchronous element (48), synchronous element includes tapered mating surface (50) of the axis upwardly adjacent to the conical friction surface (38) of drag ring, for the speed sync between the first speed change box part (32) and the first disc.First disc design is that synchronization disc (52) thereon is integrally formed in synchronous element (48), and one in the first disc is designed as coupling the disc support part made of the separate part being attached to each other (76) of all first discs (40) in circumferential direction in a manner of form-lock.

Description

Gearshift for motor vehicle transmission

Technical field

The utility model relates to be used for motor vehicle transmission (especially full-automatic stepping (stepped has grade) speed changer) Gearshift comprising: around gearbox axis rotatable first speed change box part and the second gearbox relative to each other Component；Drag ring is connected to the first speed change box part, to be rotatably fixed in circumferential direction with it and in the axial direction It is removable, and including conical friction surface；Multiple first discs are connected with each other, so as in circumferential direction rotatably It fixes and moves in the axial direction relative to each other；And multiple second discs, it is connected with each other, in circumferential direction may be used It is rotatably fixed and move in the axial direction relative to each other, and they are connected to the second speed change box part, the first disc and Multidisc clutch is alternately arranged one by one and formed to second disc, and the first disc is joined with rotatable fixed form It is connected to synchronous element, and synchronous element includes tapered mating surface of the axis upwardly adjacent to the conical friction surface of drag ring, used Speed sync between the first speed change box part and the first disc.

Background technique

For the transmission of power, other than manual shift gear, fluid drive is also used in automobile engineering Device especially includes the stepping fully-automatic gearbox of fluid torque-converter and planetary transmission.

This full-automatic stepping speed changer is used as power-shift transmission, in the case where no any tractive force interrupts Work occurs kinetic current via planetary gear set and establishes gear change by coupling or discharging each planetary gear set of pieces Change.The process for coupling each planetary gear set of pieces is currently executed by multidisk clutch in most of situation, it is this more Lamella clutch must be devised for torque capacity to be passed and friction point including corresponding high quantity or disc are to turn Square transmitting.Due to many friction points, the undesirable moment of resistance (drag torque) is very high and right under uncoupled state Shifting efficiency has adverse effect.

For this purpose, a kind of transmission for vehicles has been proposed in 102 44 523 A1 of general class DE, wherein interior disc supporting element Rotatable speed change box part (such as gear-box axle) is connected to via synchronizing.Allow to synchronous selective interior disc supporting element with can Rotation the disengaging of speed change box part is rubbed or form-lock connection (form-locking coupling).Furthermore in synchronization Uncoupled state under occur the moment of resistance, but due to compared with multidisk clutch friction surface may be significantly smaller, these The moment of resistance is significantly smaller.Under the uncoupled state of gearshift, i.e., when multidisk clutch is opened and synchronization does not couple, Due to lower drag square, only or at least mainly occur relative rotation in retaining zone, and in the area of multidisk clutch There is no or there's almost no relative rotation in domain, to improve gear efficiency.

However, the construction of the transmission for vehicles disclosed in 102 44 523 A1 of DE is relative complex, this is because largely Single component and three independent springs for axially acting in these single components, and the transmission for vehicles is also Including undesirable high gear shifting force grade.

Utility model content

The purpose of this utility model is that the quantity of all parts is made to minimize and provide for motor vehicle transmission The gearshift of simple structure, this facilitates high gear efficiency due to low-resistance torque.

According to the utility model, which, which passes through, initially refers to that the gearshift of type is realized, wherein in the first disc One is designed as synchronous element and synchronization disc thereon is integrally formed, and one in the first disc is designed as with shape Lock mode couples the disc support part of all first discs in circumferential direction, and wherein disc supporting element is by being attached to each other Device made of separate part.One that synchronous element is formed in the first disc is upper and by one in the first disc A measure for being designed as disc support part, allows the extremely simple and compact construction of gearshift, which has phase To small number of all parts, and wherein, one radially inner side in the first disc is provided with integrally formed bending section Point, which has the function of different, that is, limits the friction surface for synchronous element or be used as other discs Disc support part.Entire disc support part is formed by including individual component, convenient for multiple with locking with disc The manufacture of the disc support part of opening or recess portion.In addition, the production of the disc support part is more compared with integral type disc support part Inexpensively.

According to gearshift embodiment, the first speed change box part is formed can be around the rotation of gearbox axis Gear-box axle is strongly attached to this gear-box axle, and the second speed change box part is formed and can be rotated around gearbox axis Another gear-box axle or be strongly attached to this another gear-box axle.Particularly, two individual gear-box axles are that have The gear-box axle of the coaxial arrangement of different planetary gear sets can carry out speed coordination by gearshift.

According to the alternative embodiment of gearshift, the first speed change box part or the formation of the second speed change box part can be surrounded The gear-box axle of gearbox axis rotation is strongly attached to this gear-box axle, and the formation of another speed change box part can revolve Turn fixed gear box casing or is strongly attached to this gear box casing.Here gearshift is used as brake, can It brakes rotatable gear-box axle and stops at it on shell with rotatable fixed form.Multidisc clutch constitutes stringent Disk brake in meaning.

The friction protruding portion that synchronous disc preferably includes annular disk sheet and separates in circumferential direction, each friction Protruding portion forms the synchronous element with tapered mating surface and is formed in the radial edges of disc plate.This allows with low life Production expense manufactures synchronous disc as the sheet metal disc reshaped.

Drag ring can be contacted with the friction protruding portion formation for substituting synchronous ring.

Drag ring is arranged on the outside of disc support part and has the radial direction limited with the cooperation of transmission housing shape Protruding portion.

Preferably, the actuating component for axially acting on the first disc and the second disc, actuating component are provided with Initial position can never be activated to start to move axially via sync bit and form-lock position towards coupled position, do not activated Initial position, multidisc clutch is opened and the first disc does not couple in circumferential direction with the first speed change box part, same Step is set, multidisc clutch substantially open and the first disc via frictional connection in circumferential direction with the first gearbox Component connection, in form-lock position, multidisc clutch is substantially opened and the first disc is connected to via form-lock Couple in circumferential direction with the first speed change box part, and in coupled position, multidisc clutch closure and the first disc warp Coupled in circumferential direction with the first speed change box part by form-lock connection.The shift process of gearshift only needs as a result, One single actuating component, by closure multidisc clutch with short shift stroke, first the first speed change box part with Synchronization is generated between first disc, and then ensures the first speed change box part and the second speed change box part in circumferential direction Frictional connection.

In this case, synchronous disc is preferably one of them first disk being arranged as on axial near actuating component Piece.When axially being acted on multidisc clutch by actuating component, can ensure before multidisc clutch closure Speed sync is occurred between the first speed change box part and the first disc with low expense in this manner.

According to another embodiment of gearshift, the first disc in axial direction farthest away from actuating component is configured to disc branch Support member, the shape of the rotatable fixation for all first discs, which cooperates, to be connected with each other.

In this embodiment, the first disc for being configured to disc support part may include the annular disk for limiting separate part Sheet, and including having the connection for the axial end portion for extending through the corresponding opening in disc plate and being attached to disc plate convex Ear, wherein connection lug is connected with each other in the end far from disc plate by stabilizing ring.Stabilizing ring leads to multidisc clutch Extra high carrying and torque transfer capability.Particularly, stabilizing ring and connection lug limit one of star-shaped sheet metal it is whole Body portion, the lug that wherein initial radial extends deform about 90 ° axially to extend.

Lug can be welded or soldered on disc plate, or by the deformation of disc plate and/or lug or can be passed through Press-fit and be attached on disc plate.In addition, attachment can be connected by a snap to realize.

In addition, connection lug extends through the side of the corresponding opening in disc plate and the separate stabilizing ring from disc plate Axially protrude to form axial projection.The protruding portion can the form-lock position of actuating component and coupled position with The recess portion of first speed change box part engages, to provide the shape of rotatable fixation between the first disc and the first speed change box part Shape locking connection.

According to the preferred embodiment of gearshift, it is provided with spring element, by the conical friction surface court of drag ring Synchronous element tapered mating surface axially push.In the present context, the first speed change box part, drag ring and spring element Especially constitute can axial preloading pre-installation structural unit.

Detailed description of the invention

Referring to attached drawing by the description of following preferred embodiment, other feature and advantage of the utility model will show and It is clear to, in the accompanying drawings:

Fig. 1 shows the transmission scheme of the full-automatic stepping speed changer according to the present utility model including gearshift；

Fig. 2 is the stereogram exploded view of gearshift according to one embodiment, without falling into the protection of the utility model In range, but providing it is the utility model in order to facilitate understanding；

Fig. 3 is the broken section stereogram exploded view of gearshift according to fig. 2；

Fig. 4 is shown in the longitudinal profile by the gearshift assembled according to fig. 2 for not activating initial position；

Fig. 5 is shown in another longitudinal direction by the gearshift assembled according to fig. 2 for not activating initial position Section；

Fig. 6 is shown in the another longitudinal direction by the gearshift assembled according to fig. 2 for not activating initial position Section；

Fig. 7 shows the detail section of the pre-installation structural unit by gearshift according to fig. 2；

Fig. 8 is the perspective view according to the pre-installation structural unit of Fig. 7；

Fig. 9 shows the detail section of the multidisc clutch by gearshift according to fig. 2；

Figure 10 is the perspective view according to the multidisc clutch of Fig. 9；

Figure 11 shows the longitudinal profile by gearshift according to fig. 2 in coupled position；

Figure 12 is shown in another implementation by gearshift according to the present utility model for not activating initial position The longitudinal profile of mode；

Figure 13 is the detail section of the gearshift according to Figure 12 in multidisc clutch region；

Figure 14 is the stereogram exploded view according to the gearshift of Figure 12；

Figure 15 shows the longitudinal profile of another embodiment in the gearshift by not activating initial position, Without falling into the protection scope of the utility model, but providing it is the utility model in order to facilitate understanding；

Figure 16 is shown through another longitudinal profile according to the gearshift of Figure 15；

Figure 17 is the stereogram exploded view according to the pre-installation assembly unit of the gearshift of Figure 15；

Figure 18 is the perspective exploded sectional view according to a part of the gearshift of the utility model of another embodiment；

Figure 19 is the perspective view according to the multidisc clutch of the gearshift of Figure 18.

Specific embodiment

Fig. 1 shows the full-automatic stepping speed changer 10 of the electric hydaulic control of motor vehicles comprising torque-converters 12, four A planetary transmission or planetary gear set 14 and the gear box casing 16 schematically shown.Furthermore it is provided with drive shaft 18, defeated Shaft 20 and multiple gear-box axles 24, wherein Supporting Planetary Gears part, sun gear and the internal gear of planetary transmission are under Face is also referred to as gear-box axle 24.Gear-box axle 24 is associated with each planetary gear set 14 and is arranged as relative to each other altogether Axis.

Stepping speed changer 10 further includes gearshift 26,28, they can be acted on by hydraulic pressure, and can be incited somebody to action Gear-box axle 24 is connected to another gear-box axle 24 or is connected to gear box casing 16, or makes gear-box axle 24 and another speed change Case axis 24 or gear box casing 16 disengage.

Herein, the gearshift 26 that gear-box axle 24 is connected to gear box casing 16 is also referred to as brake apparatus, and And the gearshift 28 that two gear-box axles 24 are coupled to each other is also referred to as clutch apparatus.In this illustrative embodiments, If wherein three gearshifts 26 are designed as brake apparatus, and three gearshifts 28 design there are six gearshift 26,28 For clutch apparatus.As an example, two brake apparatus and a clutch apparatus are in coupled situation and (pass through yin according to Fig. 1 Shadow zone domain representation), and a brake apparatus and two clutch apparatus are in and disengage state.

Each gear steps of corresponding stepping speed changer 10 with transmission ratio between drive shaft 18 and output shaft 20 It is generated by the various shift combinations of gearshift 26,28.

Essential structure and the method for operation due to full-automatic stepping speed changer 10 by the prior art be generally it is known, Therefore it is not described further, and will only be described in detail the structure of gearshift 26,28 according to the present utility model below Design and Features.

Fig. 2 to Figure 11 shows the gearshift 26 of motor vehicle transmission (especially full-automatic stepping speed changer 10) Embodiment, wherein the actuating component 30 of gearshift 26, especially gearshift 26, can occupy each axial position, more Precisely, axial initial position (fig. 4 to fig. 6), axial sync bit, axial shape latched position and axially coupled position Set (Figure 11).

Gearshift 26 includes: the first speed change box part 32 and the second speed change box part 34, they surround gearbox axis A It is rotatable relative to each other；Drag ring 36 is connected to the first speed change box part 32, so as to rotatable in circumferential direction with it It ground fixation and moves in the axial direction, and including conical friction surface 38；Multiple first discs 40 are connected with each other, so as to It is rotatably fixed and moves in the axial direction in circumferential direction；And multiple second discs 42, be connected with each other, so as to It is rotatably fixed in circumferential direction and moves in the axial direction, and they are connected to the second transmission portion 34, the first disk Piece 40 and the second disc 42 are alternately arranged one by one and form multidisc clutch 44.

In the illustrative embodiments according to fig. 2 to Figure 11, the first disc 40 is to be rotatably fixed and in axial direction The interior disc that moveable mode is connected in radially inner side, is described in more detail below and couples the first disc 40 in circumferential direction Mode.Correspondingly, the second disc 42 is outer disc, and each is connected to the second speed change box part 34, to revolve with it Turn ground to fix and move in the axial direction, the second speed change box part is implemented as outer disc supporting element.

In the illustrative embodiments according to fig. 2 to Figure 11, the first speed change box part 32 is to be strongly attached to stepping The gear-box axle 24 of speed changer 10 or the clutch pads 46 even integrally realized with it.On the other hand, the second gearbox Component 34 is designed as the gear box casing 16 being rotatably fixed or is strongly attached to this gear box casing 16.Therefore, it shifts gears Device 26 is used as brake apparatus and the gear-box axle 24 for being strongly attached to clutch pads 46 can be locked in gearbox On shell 16.

Substitution is fixedly connected to gear box casing 16, and the second speed change box part 34 can alternatively be designed as another speed change Case axis 24 can be strongly attached to another gear-box axle 24.It is securely coupled to the described of the second speed change box part 34 Another gear-box axle 24 and the gear-box axle 24 for being strongly attached to the first speed change box part 32 are clearly not go together Two of star gear set 14 are different, independent gear-box axle 24, particularly arrange in a coaxial fashion.This gearshift 28 Be correspondingly used as clutch apparatus, can via multidisc clutch 44 with along the synchronous by planetary gear set of direction of rotation 14 gear-box axle 24 is connected to the gear-box axle 24 of another planetary gear set 14.In the process, via multiple-piece clutch The frictional fit connection of device 44 is connected gear-box axle 24 with synchronous form-lock substantially with the connection of rotatable fixed form Before, the speed coordination between the first disc 40 and the first speed change box part 32 will occur first.

Provide it is synchronous between the first disc 40 and the clutch pads 46 for being strongly attached to gear-box axle 24, so as to Reduce and the relatively high moment of resistance in multidisc clutch 44 occurs when opening multidisc clutch 44.

For this purpose, the first disc 40 is connected to synchronous element 48 with rotatable fixed form, synchronous element 48 includes in axial direction The tapered mating surface 50 on the conical friction surface 38 of neighbouring drag ring 36, is used for the first speed change box part 32 and the first disc 40 Between speed sync.

Fig. 3, Fig. 4, Fig. 9 and Figure 11 clearly show that one of them first disc 40 is designed as synchronous element 48 integrally The synchronization disc 52 being formed thereon.Synchronous disc 52 includes the annual disk extended in the plane perpendicular to gearbox axis A Sheet and the friction protruding portion 54 separated in circumferential direction；Each friction protruding portion 54, which is formed, has tapered mating surface 50 Synchronous element 48, and be formed on the radially inward edge of disc plate.

In order to ensure the reliable synchronization before closure multidisk clutch 44, disc 52 is synchronized in the axial direction as far as possible Ground is arranged close to actuating component 30.It is particularly preferred that synchronous disc 52 is in the axial direction near one of actuating component 30 the One disc 40, as shown in Fig. 4 and Figure 11.

According to Fig. 9 and Figure 10, other than synchronous disc 52, peripheral of disc is equipped with edge in the radial direction of each first disc 40 The connection protruding portion 56 that separates of circumferential direction, connection protruding portion 56 is axially extending, and each connection protruding portion It is engaged with the intermediate space of two neighbouring in circumferential direction connection protruding portions 56 of axially adjacent first disc 40.Pass through this Kind mode, each of two adjacent first discs 40 are connected to each other with rotatable fixed form, to realize string on the whole Connection connection, by the series connection, all first discs 40 are coupled to each other with rotatable fixed form.

What Figure 10 clearly show the friction protruding portion 54 of synchronous disc 52 and other the first discs 40 couples protruding portion 56 compared to distribution having the same and size in circumferential direction.Synchronizing disc 52 as a result, can also be via axially adjacent first The connection protruding portion 56 of disc 40 is substantially easily coupled with rotatable fixed form in circumferential direction by shape cooperation To other the first discs 40.

Described first disc 40 in circumferential direction shape cooperation allow to realize in an advantageous manner, without with In the independent disc support part of the first disc 40.This simplifies the constructions of gearshift 26, and the quantity of all parts is advantageous It reduces on ground.

Incidentally, also use on axial farthest away from the connection protruding portion 56 of the first disc 40 of actuating component 30, with The form-lock that rotatable fixation is generated between the first disc 40 and the first speed change box part 32 coupled along the circumferential direction connects It connects.According to Fig. 3 and Fig. 8, the first speed change box part 32 be designed as include the claw 58 projected radially outwardly clutch pads 46, In axial direction farthest away from the first disc 40 of actuating component 30 connection protruding portion 56 actuating component 30 form-lock position and It is bonded between claw 58 in coupled position (referring to Figure 11), and can be revolved via clutch pads 46 and the foundation of gear-box axle 24 Turn fixed form-lock connection.

According to fig. 4 to fig. 6, gearshift 26 further includes spring element 60, which rubs the taper of drag ring 36 The tapered mating surface 50 for wiping surface 38 towards synchronous element 48 is axial to be pushed.

In the embodiment according to fig. 2 to Figure 11, drag ring 36 is formed in the first axis end of sheet metal bushing 62 On, in the second opposite axial end portion, sheet metal bushing 62 includes for establishing latch connection with the first speed change box part 32 Resilient latch member 64.On the one hand by the first speed change box part 32, and on the other hand pass through the curved of sheet metal bushing 62 Support spring element 60, spring mounting lug 66 are to pass through to bent spring mounting lug 66 (referring to Fig. 5 and Fig. 7) in the axial direction Punching press is produced from sheet metal bushing 62 and radially-inwardly angled tongue piece.

In this manner, as shown in Figure 8, the first speed change box part 32, spring element 60 and drag ring 36 or metal The pre-installation structural unit 63 of the formation axialy offset of piece bushing 62.

If drag ring 36 is axially acted on via the synchronous element 48 of synchronous disc 52 by actuating component 30, metal Piece bushing 62 can overcome the axial force of spring element 60 mobile towards the first speed change box part 32.As a result, friction surface 38 with The size of synchronizing torque between matching surface 50 is limited by the axial spring forces of spring element 60.

In addition, Fig. 8 clearly show sheet metal bushing 62 the second axial end portion have be formed thereon in clutch The sheet metal lug 68 extended between the adjacent claw 58 of device disc 46, thus in whole axial shifting positions of actuating component 30 It sets, drag ring 36 is fixedly attachable to gear-box axle 24 via clutch pads 46 with rotatable.

Not activating initial position and describe gearshift 26 below according to actuating component 30 shown in fig. 4 to fig. 6 The method of operation.

In the illustrative embodiments shown, gearshift 26 is the full-automatic stepping speed changer 10 of electric hydaulic control A part, so that actuating component 30 can be acted on by the pressure of hydraulic fluid, to influence clutch pads 46 and to become The rotation of fast case axis 24.

Unquestionably, hydraulic actuation is substituted, it is also contemplated that the electric actuation of gearshift 26.

According to fig. 4 to fig. 6, the second speed change box part 34 includes cylindrical part 70.In addition, actuating component 30 is implemented as Piston is guided in cylindrical part 70 with axially-displaceable flowing mode.Cylindrical part 70 and the actuating for being designed as piston Component 30 limits the annular compartment 72 that can be pressurizeed, to axially move piston.

According to fig. 4 to fig. 6, actuating component 30 is moved to left side by the increase pressure of hydraulic fluid.In order to make to activate structure Part 30 returns to right side, and spring (not shown) can be set, for example, actuating component 30 is pushed to the axial direction shown in it just by it Beginning position.As an alternative, it is also contemplated that, actuating component 30 is returned by hydraulic way and device.

Axial initial position is not being activated according to the actuating component 30 of fig. 4 to fig. 6, at drag ring 36 and synchronous element 48 In the so-called releasing position that wherein friction surface 38 and matching surface 50 separate.The first disc 40 is in circumferential direction as a result, It is not coupled to the first speed change box part 32.

In addition, do not activate initial position in actuating component 30, axis upwardly adjacent to the first disc 40 and the second disc 42 Also it is released, i.e., it is axially spaced from one another.This means that multidisc clutch 44 is opened.

In synchronous releasing position, there are speed differences between the first speed change box part 32 and the second speed change box part 34 The moment of resistance occurs in situation, however the friction surface due to may be significantly smaller, this moment of resistance are substantially less than the multiple-piece clutch opened The moment of resistance of device 44.As a result, only or at least main synchronous interior generation shift dress between drag ring 36 and synchronous element 48 Set the relative rotation of 26 initial position.As the moment of resistance present in (opening) multidisc clutch 44, the first disc 40 and second disc 42 synchronously or at least Pnmary Synchronization it is mobile, thus only generated in the initial position of gearshift 26 compared with The moment of resistance of small synchronization has positive influence to gear efficiency.

As chamber 72 start pressurization as a result, actuating component 30, which is moved to left side, enters axial sync bit, also, It is acted on synchronous disc 52 via the second disc 42 of neighbouring axial direction outside, and the thus taper fit of synchronous element 48 Surface 50 is against the conical friction surface 38 of drag ring 36.Contact between two conical surfaces generates synchronization, i.e. the first disc 40 and drag ring 36 or with the rotatable speed coordination being fixedly attachable between the first speed change box part 32 of drag ring 36.

Due to the axial force of spring element 60, the multidisc clutch 44 of release is not closed.In the disc of synchronous disc 52 There is only moment of frictions between the second disc 42 between plate disc 52 synchronous with being axially arranged at and actuating component 30.Due to Taper humidification between conical friction surface 38 and tapered mating surface 50, the moment of friction control synchronous disk generated here Thus piece 52 and axis own upwardly adjacent to the moment of friction in the planar friction surface between the second disc 42 of actuating component 30 The speed sync of the speed of first disc 40 and the first speed change box part 32.Here, the grade of synchronizing torque is by spring element The limitation of 60 axial force.

When the hydraulic pressure in chamber 72 increases, the first disc 40 and the second disc 42 of multidisc clutch 44 towards Clutch pads 46 move axially, until the axial connection protruding portion 56 of upper the first disc 40 farthest away from actuating component 30 and from The gap of the claw 58 of clutch disc 46 engages, rotatable solid to establish between the first disc 40 and the first speed change box part 32 Fixed form-lock connection.

If establishing form-lock connection, still multidisc clutch 44 is still mainly opened, at actuating component 30 In its axial shape latched position.

If farthest away from the connection protruding portion 56 of the first disc 40 of actuating component 30 due to coupling protruding portion 56 in axial direction Cannot be axially directly bonded between the claw 58 of clutch pads 46 adjacent to claw 58, then multidisc clutch 44 by Hydraulic pressure in chamber 72 and temporarily, at least part is closed, thus the moment of friction in multidisc clutch 44 increases. Due to the moment of friction of the increase, different speed are generated between the first disc 40 and the first speed change box part 32, are allowed Connection protruding portion 56 is locked in the appropriate location between claw 58.

If the hydraulic pressure in chamber 72 further increases, then multi-disc in the form-lock position of actuating component 30 The first disc 40 and the second disc 42 of formula clutch 44 are moved to axial retention ring 74 (Figure 11) as far as possible first, and then By axial compression.At this point, actuating component 30 occupies its axially coupled position, wherein multidisc clutch 44 is closed, and first Disc 40 is connected in circumferential direction via form-lock is connected to the first speed change box part 32.

In this coupled position, chamber 72 can be acted on now with all-hydraulic pressure, to realize the first transmission portion 32 Speed coordination or the desired torque of transmitting between the second transmission portion 34.

With the reduction of hydraulic pressure in chamber 72, the spring element 60 of tensioning can make disc 40,42 in the axial direction Upper return, i.e., according to Figure 11 move them into right side, in the process the first disc 40 in circumferential direction with clutch disk Piece 46 disengages.Once actuating component 30 arrives again at it and do not activate axial initial position, then all of gearshift 26 rub Wiping element can be separated from each other or be released in existing axial gap.

Figure 12 to Figure 14 shows the embodiment of gearshift 26 according to the present utility model, with according to fig. 2 to scheme 11 embodiment is different only in that the join operation aspect of the first disc 40 in circumferential direction.

According to Figure 12 to Figure 14, one of them first disc 40 forms disc support part 76, in circumferential direction with shape Shape lock mode couples the first all discs 40.Disc support part is for carrying disc 40 in radial direction.

It can see based on Figure 12 and Figure 13, in this case, farthest away from the first disc of actuating component 30 in axial direction 40 be a part for cooperating disc support part 76 interconnected for the shape of the rotatable fixation of all first discs 40.

According to Figure 14, the first disc 40 is a part of disc support part 76 and is limited to perpendicular to gearbox axis A Plane in the annular disk sheet that extends.At the radially inward edge of disc plate (the first disc 40), it is attached with connection lug 78. Connection lug 78 separates in circumferential direction.The connection lug passes through formed integrally thereon in the end far from disc plate Stabilizing ring 80 be connected with each other.Connection lug 78 extend into and by the opening at the radially inward edge of disc plate and from The side of the separate stabilizing ring 80 of disc plate 40 is axially protruded to form axial projection 81.First disc 40 and ring 80 and Lug is the bending part of pure punching press.

Lug 78 is attached to by welding or being brazed, by the deformation of disc plate and/or lug or by press-fit First disc 40.In addition, attachment can be realized by allowing to dismantle snapping connection for disc support part.

This is to be axially arranged at synchronous disc 52 and the first disc 40 in axial direction farthest away from actuating component 30 why Between the first disc 40 connection protruding portion 56 with according to fig. 2 to the embodiment of Figure 11 compared with can have simplify design Reason.It is no longer axially deformed according to the connection protruding portion 56 of first disc 40 of Figure 13 as a result, but is only designed as diameter To the protruding portion to extend internally.

Due to the connection protruding portion 56 being mutually axially adapted to according to two adjacent first discs 40 of Fig. 9 and Figure 10, hair Raw moment of friction is transmitted to next first disc 40 from the first disc 40 in each situation.In this manner, frictional force Square will be added farthest away from the first disc 40 of actuating component 30 in the axial direction, so that their the connection protruding portion freely stretched out 56 under high load.In contrast to this, the connection lug 78 of the first disc 40 of disc support part 76 is implemented as in axial side To not stretching out not instead of freely, it is connected with each other by stabilizing ring 80.The basket of disc support part 76 close-shaped causes to couple The extra high bearing capacity of lug 78.

Similar with the embodiment according to fig. 2 to Figure 11, connection lug 78 (more specifically protruding portion 81) is in actuating structure Be bonded in the form-lock position of part 30 and coupled position clutch pads 46 (limit speed change box part 32) claw 58 (see In recess portion 120 between Fig. 8), to establish the shape of rotatable fixation between the first disc 40 and the first speed change box part 32 Shape locking connection.

Figure 15 is to Figure 17 shows another embodiment of gearshift 26, and according to fig. 2 to the embodiment of Figure 11 Be different only in that pre-installation structural unit 63 structure design aspect.

Here, the multi-part including sheet metal bushing 82, bearing holder (housing, cover) 84, individual drag ring 86 and snap rings 88 has been used Assembly unit substitutes the complicated sheet metal bushing 62 according to Fig. 7 and Fig. 8.

Bearing holder (housing, cover) 84 is strongly attached to the first speed change box part 32 in the axial direction, for example, with its press-fit.Metal Piece bushing 82, spring element 60 and drag ring 86 axially slide on bearing holder (housing, cover) 84 and are locked in axial direction by snap rings 88 Preload position.It is connected by form-lock, drag ring 86 is fixedly attachable to bearing holder (housing, cover) 84 and the first speed change with rotatable Box part 32, and axially to can be moved into restriction range.It is similar with according to the sheet metal bushing 62 of Fig. 7 and Fig. 8, according to The sheet metal bushing 82 of Figure 15 to Figure 17 also via sheet metal lug 68 in all axial positions of actuating component 30 with first Speed change box part 32 forms the form-lock connection of rotatable fixation.

According to the method for operation of the gearshift 26 of Figure 15 to Figure 17 and according to fig. 2 to the operation side of the embodiment of Figure 11 Formula is identical.

Figure 18 to Figure 19 shows another embodiment of gearshift 26, compared with previously described embodiment, the One disc 40 is designed as outer disc, and the second disc 42 is correspondingly designed as interior disc.

Here, the first speed change box part 32 is clutch pads 90, is fixedly attachable to transmission housing with rotatable Body 16.Second speed change box part 34 is designed as interior disc supporting element and is strongly attached to the gear-box axle of stepping speed changer 10 24。

It is similar with the embodiment according to Figure 12 to Figure 14, one of them first disc 40, particularly axially on farthest away from First disc 40 of actuating component 30 is the disc branch for coupling all first discs 40 in circumferential direction in a manner of form-lock A part of support member 76 (see Figure 19).

Disc support part 76 is for carrying radial outer disc 40.

Realize that the shape of the rotatable fixation between the first disc 40 and disc support part 76 cooperates by connection lug 78 It is connected with each other, connection lug is connected to each other by the stabilizing ring 80 corresponding to Figure 12-14.As described above, connection lug 78 extends Pass through the opening 79 in the first disc plate 40 and is attached to the first disc plate.Therefore, the protruding portion for limiting claw connection is formd 81。

Disc (right side in Figure 18) near actuating component has the synchronization protruding portion 54 being radially outwardly sloping, with limit It is fixed to form the synchronization disc 52 contacted with drag ring 36.Locating snap ring 200 is for being axially located drag ring 36.

The disc (indicating in Figure 19) near actuating component 30 in second disc 42 is greater than other disks radially Piece and the more inwardly projecting adjoining members that spring 60 is used for restriction.

Figure 18 is also shown, and according to Figure 12-14, is coupled lug 78 and is extended through the opening 79 in disc plate 40 and in disk The side of the separate actuating component 30 of sheet forms axial projection 81.These protruding portions form a kind of claw tooth.

When gearshift is in coupled situation, the engagement of protruding portion 81 100 is to realize and be arranged on axial near cause First the rotatable of disc 40 of dynamic component 30 is fixedly connected, in the form-lock position of actuating component 30 and coupled position It is bonded in the respective recess 120 for the clutch pads 90 for limiting speed change box part 32, to become in the first disc 40 and first The form-lock connection of rotatable fixation is provided between fast box part 32.

The method of operation of the embodiment illustrated at the beginning can be similarly transferred to be filled according to the shift of Figure 18 and Figure 19 26 are set, in this regard referring specifically to the corresponding description about Fig. 2 to Figure 11.

Claims (12)

1. a kind of gearshift for motor vehicle transmission, comprising:

First speed change box part (32) and the second speed change box part (34), they can surround gearbox axis

(A) it rotates relative to each other；

Drag ring (36) is connected to the first speed change box part (32), so as to rotatably solid in circumferential direction with it Determine and can move in the axial direction, and including conical friction surface (38)；

Multiple first discs (40) are connected with each other, to be rotatably fixed in circumferential direction and relative to each other in axis It can move upwards；And

Multiple second discs (42) are connected with each other, to be rotatably fixed in circumferential direction and relative to each other in axis It can move upwards, and be connected to the second speed change box part (34),

First disc (40) and second disc (42) alternately arrange one by one, and formed multiple-piece from Clutch (44),

First disc (40) is connected to synchronous element (48) with rotatable fixed form, and the synchronous element (48) includes axis Upwardly adjacent to the tapered mating surface (50) of the conical friction surface (38) of the drag ring (36), it to be used for the first gearbox Speed sync between component (32) and first disc (40),

It is characterized in that, one in first disc (40) is designed as the synchronous element (48) and is integrally formed thereon Synchronization disc (52), and one in first disc (40) is designed as joining in circumferential direction in a manner of form-lock The disc support part (76) for connecing all first discs (40), wherein the disc support part (76) is the list by being attached to each other Device made of only component.

2. gearshift according to claim 1, which is characterized in that the first speed change box part (32), which is formed, to enclose Around the gearbox axis (A) rotation gear-box axle (24) or be strongly attached to the gear-box axle (24), and wherein, The second speed change box part (34) formed can around the gearbox axis (A) rotation another gear-box axle (24) or It is strongly attached to another gear-box axle (24).

3. gearshift according to claim 1, which is characterized in that the first speed change box part (32) or described second Speed change box part (34) forms the gear-box axle (24) that can be rotated around the gearbox axis (A) or is strongly attached to The gear-box axle (24), and wherein, another speed change box part (34,32) forms the gear box casing (16) of rotatable fixation Or it is strongly attached to the gear box casing (16).

4. gearshift according to claim 1, which is characterized in that the synchronous disc (52) include annular disk sheet with And the friction protruding portion (54) separated in circumferential direction, each friction protruding portion (54), which is formed, has tapered mating surface (50) Synchronous element (48) and be formed in the radial edges of the disc plate.

5. gearshift according to claim 4, which is characterized in that the drag ring (36) can protrude with the friction Portion (54) forms contact.

6. gearshift according to claim 3, which is characterized in that the drag ring (36) is arranged in the disc support On the radial outside of part (76) and there is the radially protruding part limited with the cooperation of the gear box casing (16) shape.

7. gearshift according to claim 1, which is characterized in that be provided with and axially act on first disc (40) actuating component (30) and on second disc (42), the actuating component (30) can never activate initial position and open Beginning axially moves via sync bit and form-lock position towards coupled position, does not activate initial position described, described Multidisc clutch (44) open and first disc (40) in circumferential direction not with the first speed change box part (32) couple, in the sync bit, the multidisc clutch (44) is substantially opened and first disc (40) passes through Coupled in circumferential direction with the first speed change box part (32) by frictional connection, it is described more in the form-lock position Lamella clutch (44) substantially open and first disc (40) via form-lock connection in circumferential direction with institute The connection of the first speed change box part (32) is stated, and in the coupled position, multidisc clutch (44) closure and described First disc (40) couples with the first speed change box part (32) in circumferential direction via form-lock connection.

8. gearshift according to claim 7, which is characterized in that the synchronous disc (52) is to be arranged as in axial direction most One in first disc (40) of the actuating component (30).

9. gearshift according to claim 7, which is characterized in that farthest away from the institute of the actuating component (30) in axial direction It states the first disc (40) and is configured to the disc support part (76), the shape of the rotatable fixation for all first discs (40) Cooperation is connected with each other.

10. gearshift according to claim 9, which is characterized in that be configured to the described of the disc support part (76) First disc (40) includes the annular disk sheet for limiting separate part, and including having the phase extended through in the disc plate It should be open (79) and be attached to the connection lug (78) of the axial end portion of the disc plate, wherein the connection lug (78) exists End far from the disc plate is connected with each other by stabilizing ring (80).

11. gearshift according to claim 10, which is characterized in that the connection lug (78) extends through the disk It corresponding opening (79) in sheet and axially protrudes from the side far from the stabilizing ring (80) of the disc plate with shape At axial projection (81), the protruding portion (81) is in the form-lock position of the actuating component (30) and coupled position and institute Recess portion (120) engagement of the first speed change box part (32) is stated, so as in first disc (40) and the first speed change case portion The form-lock connection of rotatable fixation is provided between part (32).

12. gearshift according to claim 1, which is characterized in that spring element (60) are provided with, by the friction The tapered mating surface (50) of the conical friction surface (38) of ring (36) towards the synchronous element (48) axially pushes.