CN104565106A

CN104565106A - Radial dual clutch

Info

Publication number: CN104565106A
Application number: CN201410569352.9A
Authority: CN
Inventors: A·阿尔默特
Original assignee: Schaeffler Technologies AG and Co KG
Current assignee: Schaeffler Technologies AG and Co KG
Priority date: 2013-10-23
Filing date: 2014-10-22
Publication date: 2015-04-29
Anticipated expiration: 2034-10-22
Also published as: DE102014219969A1; CN104565106B

Abstract

A double clutch includes an input side, a first output side and a second output side. Furthermore, a first clutch element is provided for controlling the torque-locking connection of the input side to the first output side and a second clutch element is provided for controlling the torque-locking connection of the input side to the second output side. An actuating element is used for axially actuating the second clutch element in order to open or close the torque-locking connection. A first spring element and a second spring element are provided for generating an axial prestressing force acting on the actuating element, wherein the second spring element is arranged radially within the first spring element.

Description

Radial double clutch

Technical field

The present invention relates to a kind of radial double clutch for Motor Vehicle.The invention particularly relates to a kind of sealed double clutch be connected of torque for setting up between an input side with two outlet sides separated, wherein, the clutch element controlling described transmission staggers diametrically.

Background technique

Double clutch uses, faster and more smoothly can perform the conversion between different shelves levels in conjunction with double-clutch speed changer.Described double clutch generally comprises an input side and two outlet sides independent of each other.Described input side is usually connected with a drive motor, especially a piston reciprocating internal combustion engine and described outlet side is connected with the independently input shaft of described double-clutch speed changer.Different shelves wheels is connected with input shaft, and these different shelves wheel is to the different shelves level representing double-clutch speed changer.First clutch element sets up that torque between described input side with described first outlet side is sealed to be connected, and second clutch element stops, and the torque between described input side with described second outlet side is sealed to be connected.In order to convert these grade of level, manipulating described clutch element as follows, making to eliminate the sealed connection of torque of first clutch element and setting up the sealed connection of torque of second clutch element.Next can in described double-clutch speed changer, another grade of wheel the first input shaft added for next transforming gear is right, when not affecting the power stream of drive motor by double-clutch speed changer.

Summary of the invention

Double clutch generally can build in the axial direction, and wherein, described clutch element staggers relative to each other in the axial direction, or builds diametrically, and wherein, described clutch element staggers diametrically.So radial structure form General Requirements less position in axial direction compared with axial type is also preferably used when axial arrangement limited space.Task of the present invention is the double clutch providing a kind of radial-type, and this double clutch fully uses already present structure space better.The present invention solves this task by means of the double clutch of the feature with independent claims.Subclaims describe preferred embodiment.

Double clutch according to the present invention comprises an input side, one first outlet side and one second outlet side.In addition, first clutch element arranges for controlling that described input side and the torque of the first outlet side are sealed to be connected and second clutch element arranges and is connected with the torque of the second outlet side is sealed for controlling described input side.One actuating element is used for handling described second clutch element in the axial direction, to open or the closed sealed connection of described torque.In order to produce the pretightening force in the axial direction that is applied on described actuating element and be provided with the first spring element and the second spring element, wherein, the second spring element is arranged within the first spring element diametrically.

Required pretightening force can be assigned on two spring elements by the nested structure (Schachtelung) diametrically of spring element.The material thickness of each spring element can be reduced thus respectively.Be that each spring element provides more in the axial direction structure space by reducing material thickness.In addition, the stress level of described spring element when maximum manipulation can reduce.The possibility of the stress cracking of one of spring element can reduce thus.In addition can when one of spring element fault, another spring element can also realize urgent operation.Already present structure space can be enhanced ground and fully use by using described two spring elements staggered diametrically.

These clutch elements can stagger diametrically, thus make described double clutch be radial-type.At this, first clutch element is in outer and second clutch element is in diametrically diametrically, thus these two spring elements are applied on first clutch element external diametrically.Also the second clutch element that two spring element loads of staggering diametrically are built-in diametrically can be utilized in another embodiment.These two mode of executions also can be bonded to each other.In addition, described clutch element also can stagger in the axial direction, thus makes described double clutch be axial type.Spring element load first clutch element that also can be staggered diametrically by two in this embodiment, second clutch element or two clutch elements.

Preferably, described first spring element comprises the first disc spring.This disc spring can manufacture inexpensively and load.In addition, this disc spring can cause uniform, power in the axial direction on described actuating element periphery.

One of described first disc spring preferably abuts on described input side at interior edge diametrically, and one diametrically edge outside abut on described actuating element.Thus, the distortion under a load of described disc spring can fully use the structure space provided with being enhanced.

Described second spring element can comprise the second disc spring.Described second disc spring especially can use in conjunction with described first disc spring.

Described second disc spring one diametrically edge outside be preferably on described input side, and one abuts on described actuating element at interior edge diametrically.This loading position state can be more favourable about required structure space.

Preferably, the first spring element is in outside described second outlet side diametrically.Therefore the structure space provided outside the second outlet side diametrically can advantageously be used in described first spring element.

Described second spring element is preferably within described second outlet side diametrically.Especially preferred: described second spring element is within described second clutch element diametrically.Structure space built-in diametrically can be used with improving by described second spring element in two mode of executions.

In a particularly preferred mode of execution, set up the sealed connection of described torque in described actuating element primary importance in the axial direction and stop the sealed connection of described torque in the second place in the axial direction.At this, described spring element extrudes described actuating element towards the direction of the described second place axially.In other words, described spring element is applied on described actuating element, so that the sealed connection of torque between interrupting input side and the second outlet side.Thus, these spring elements are applied for the readjustment power of actuator, and this actuator is applied on described actuating element in the reverse direction, to set up the sealed connection of described torque.

In a particularly preferred mode of execution, described double clutch comprises a hydraulic actuator, for being applied to the power in the axial direction on described actuating element.The power in the axial direction of described actuator preferably with the spring force reverse direction of spring element.Accurately can control the closed of second clutch element thus, to set up the sealed connection of torque between input side and the second outlet side.These nested diametrically spring elements can especially in axial direction provide required readjustment power with high Security with when needing little structure space.

Accompanying drawing explanation

More exactly the present invention is described referring now to accompanying drawing:

Fig. 1 shows the schematic half section figure through double clutch.

Embodiment

Fig. 1 shows the double clutch 100 for using in a motor vehicle.In particular, described double clutch 100 is used for using in conjunction with double-clutch speed changer in a power assembly system by device.

Described double clutch 100 comprises input side 105,1 first outlet side 110 and one second outlet side 115.Described input side 105 and two outlet sides 110 and 115 can be supported rotationally around a rotation axis 120.Described input side 105 and the device that outlet side 110,115 can comprise a flange extended diametrically respectively, a pressed sheet or radially extends in any other way.In the embodiment shown, described input side 105 comprises a wheel hub 125, for drive motor, assembling on the driven shaft of especially Motor Vehicle drive motor.

Described clutch 100 comprises first clutch element 130 and second clutch element 135 in addition.Described first clutch element 130 is used for by device: optionally set up or stop the sealed connection of torque between input side 105 and the first outlet side 110.In the corresponding way, described second clutch element 135 is arranged for: optionally set up or stop the sealed connection of torque between input side 105 and the second outlet side 115.

Described clutch element 130,135 comprises at least one first friction element 140 and at least one the second friction element 145 usually respectively, and they with axial neighbouring relations relative to each other.Respectively, the friction element 140,145 in described friction element with described input side 105 and another friction element 145,140 be connected in locking manner with corresponding outlet side 110,115 torque of attaching troops to a unit.In preferred implementation shown in Figure 1, the transmission of torque between the first friction element 140 and input side 105 is carried out respectively on the outer side surface diametrically of these clutch elements 130,135.Described second friction element 145 is based upon the sealed connection of torque to described outlet side 110 or 115 on the radially inner side surface of the correspondence of described clutch element 130,135.In order to ensure the mobility in the axial direction of described friction element 140,145, a teeth portion in the axial direction can be set respectively.

In general manner, two friction elements 140,145 enough, Here it is so-called single plate clutch.But, one preferred embodiment in axial direction alternately arrange multiple first friction element 140 and multiple second friction element 145, to form described clutch element 130 or 135 together.This layout is referred to as multiple-disk clutch.Especially, when double clutch 100 uses in oil groove, polydisc mode can be favourable.One or two in friction element 140,145 can carry friction lining to improve frictional behavior.In one embodiment, the friction between described friction element 140,145 is based upon between a friction lining and a steel friction plate respectively.

Described clutch element 130,135 is arranged with staggering diametrically, and wherein, described first clutch element 130 is in outside described second clutch element 135 diametrically.In axial direction, described clutch element 130,135 is preferably overlapping at least partly.Be provided with the first actuating element 150 to handle described first clutch element 130 and be provided with the second actuating element 155 to handle described second clutch element 135.If an actuating element in actuating element 150,155 in axial direction compresses the clutch element 130 or 135 that described correspondence is attached troops to a unit, so described input side 105 with produce between described first outlet side 110 or the second outlet side 115 that torque is sealed to be connected.

In shown preferred implementation, be provided with a hydraulic actuator 160, described hydraulic actuator comprises a pressure chamber, and described pressure chamber is closed by described first actuating element 150.Described first actuating element 150 in axial direction can be arranged movably, thus make the relatively described in the axial direction first clutch element 130 of the pressure of the raising in pressure chamber extrude described first actuating element 150, thus can between input side 105 and the first outlet side 110 transmitting torque.The first spring element 165 and the second spring element 170 is provided with in order to adjust back described first actuating element 150.At this, the first spring element 165 is in outside described second spring element 170 diametrically.Two spring elements 165,170 can realize according to different modes, such as, be embodied as cylinder spring, leaf spring or hair clip spring (Haarnadelfedern).But preferably one or two spring element 165,170 can be embodied as disc spring.

In the preferred view of Fig. 1, the edge outside diametrically of the first spring element 165 to abut on the first actuating element 150 and describedly to abut on described outlet side 105 at interior edge diametrically.In addition preferably: the edge outside diametrically of the second spring element 170 to abut on described input side 105 and abuts on described actuating element 150 at interior edge diametrically, reversion situation but be feasible equally.Therefore described spring element 165,170 to act on the first actuating element 150 and acts on described input side 105 in a relatively little region in a broadly softened diametrically region.

First spring element 165 radially extends on the region of described two clutch elements 130,135.Described first spring element 165 also can assemble on radial direction outer ground further, such as, be assemblied in diametrically outside described second clutch element 135.But preferably: described first spring element 165 is arranged in outside the second outlet side 115 diametrically.At this, as the outer radius using described second outlet side 115 with reference to parameter.This is suitable under being defined in following prerequisite: the second outlet side 115 is within described second clutch element 135 diametrically.In the layout of a reversion, wherein, second outlet side 115 is in outside described second clutch element 135 diametrically, preferably: described first spring element 165 is in outside such section of described input side 105 diametrically, and it is within described second clutch element 135 diametrically.

Described second spring element 170 is preferably within described second clutch element 135 diametrically.Especially preferred: the second spring element 170 is within the second outlet side 115 diametrically, wherein, the second outlet side 115 is within second clutch element 135 diametrically, as in the view of Fig. 1.

In mode of execution shown in this, described spring element 165,170 is applied on described first actuating element 150 in the mode of the applying being parallel to readjustment power.In another embodiment, described spring element 165,170 also can be used in the applying of closing force, this closing force drives described first actuating element 150, can realize the transmission of torque between input side 105 and the first outlet side 110 towards the direction of first clutch element 130 in the axial direction.In order to interrupt this transmission of torque, the first actuating element 150 must move against the spring force of spring element 165 and 170 in this case.This generally hydraulically or to otherwise such as mechanically can carry out by means of lever or another device as in above-mentioned preferred implementation.

Reference numerals list

100 double clutches

105 input sides

110 first outlet sides

115 second outlet sides

120 rotation axiss

125 wheel hubs

130 first clutch elements

135 second clutch elements

140 first friction elements

145 second friction elements

150 first actuating elements

155 second actuating elements

160 hydraulic actuators

165 first spring elements

170 second spring elements

Claims

1. Dual clutch (100), comprising:

- an input side (105);

- a first output side (110);

- a first clutch element (130) for controlling the torque-locking connection of said input side (105) with said first output side (110);

- a second output side (115);

- a second clutch element (135) for controlling the torque-locking connection of said input side (105) with said second output side (115);

- an operating element (150) for axially operating said second clutch element (135) in order to open or close said torque locking connection;

- a first spring element (165) for generating an axial pretension acting on said actuating element (150),

It is characterized by

- a second spring element (170) for generating an axial pretension acting on said actuating element (150),

- wherein said second spring element (170) is arranged radially inside said first spring element (165).

2. The dual clutch (100) according to claim 1, wherein the clutch elements (130, 135) are radially offset and the first clutch element (130) is radially outward and the second The clutch element (135) is radially inward.

3. The dual clutch (100) according to claim 1 or 2, wherein the first spring element (165) comprises a first disc spring.

4. The dual clutch (100) according to claim 3, wherein a radially inner edge of the first disc spring (165) bears against the input side (105) and a radially inner edge The upwardly facing outer edge bears against the actuating element (150).

5. Dual clutch (100) according to claim 3 or 4, wherein the second spring element (170) comprises a second disc spring.

6. The dual clutch (100) according to claim 5, wherein a radially outer edge of the second disk spring (170) bears against the input side (105) and a radially outer edge The inner edge bears against the actuating element (150).

7. The dual clutch (100) according to one of the preceding claims, wherein the first spring element (165) is located radially outside the second output part (115).

8. The dual clutch (100) according to one of the preceding claims, wherein the second spring element (170) is located radially within the second output part (115).

9. The dual clutch (100) according to one of the preceding claims, wherein the actuating element (150) establishes the torque-locking connection in a first axial position and in a second axial position In a second position, the torque-lock connection is blocked, and wherein the spring element (165, 170) presses the actuating element (150) in the direction of the axially second position.

10. The dual clutch (100) according to one of the preceding claims, which additionally comprises a hydraulic actuator (160) for the force applied to the operating element (150) force in the axial direction.