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synchronization device

A technology of synchronous device and synchronous ring, which is applied in the direction of transmission control, intermeshed clutches, mechanical drive clutches, etc., can solve the problems of low efficiency and large structural space of plate clutches or plate brakes, and achieve small parts quantity, Avoid switching noise, cost-effective effect

Active Publication Date: 2019-06-07
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The axially arranged lamellae on the one hand require a relatively large installation space
On the other hand, the efficiency of such torque-dependent multi-disk clutches or multi-disk brakes is relatively low, and their operation is especially associated with high drag torques, which are produced by the multi-part clutches or multi-disk brakes. structure and its function, since the foils always run in a substantially dragging manner, i.e. they are not completely separated

Method used

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Embodiment Construction

[0025] figure 1 A schematic diagram of a synchronization device 1 according to the invention is shown, which can be used in an automatic transmission to equalize the rotational speeds of clutches or brakes of the automatic transmission. Such a synchronizing device replaces the multi-disk clutches or multi-disk brakes that are usually used at the same point in such automatic transmissions, for example stepped automatics.

[0026]The synchronization device according to the invention consists of two disks, namely a first disk 2 and a second disk 3 . In the case of a clutch, the two discs 2 , 3 each rotate the element to which it is coupled. The rotational speeds of the elements coupled via this can thus be equalized to one another via the synchronization device 1 , a faster rotating element can be synchronized to a lower rotational speed, or a slower rotating element can be brought to a higher rotational speed. If the synchronization device is a brake, one of the disks 2 , 3 is...

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Abstract

A synchronising mechanism for equalising the speed of a clutch or brake of an automatic gearbox, comprising a first and a second plate (2, 3), each with Hirth coupling teeth (4, 5), wherein the plates (2, 3) are mutually axially spaced and the one plate (2, 3) is axially movable towards the other plate (2, 3) to cause the Hirth coupling teeth (4, 5) to engage, wherein at least one plate (2, 3) is connected for conjoint rotation to a synchroniser ring (6, 19), towards which the plate (2, 3) is axially movable against a return force, and which has a stop face (15) that abuts a stop face (16) of the other plate (2, 3) when the plates (2, 3) move towards each other.

Description

technical field [0001] The invention relates to a synchronizing device for equalizing the rotational speeds of clutches or brakes of an automatic transmission. Background technique [0002] In an automatic transmission, it is necessary to equalize, ie synchronize, the rotational speeds of elements rotating at different speeds, usually shafts or gears. This speed uniformity can be: bringing the non-rotating or slower rotating element to the speed of the fast rotating element to be coupled, or bringing the fast rotating element to the lower speed of the other element, where the target speed is also Can be zero, that is, by which the rotating element is fully braked. Usually, multi-plate clutches or multi-plate brakes are used for this purpose in automatic transmissions, for example in stepped automatic transmissions, which are designed with a corresponding number of lamellae depending on the intended use. On the one hand, the axially arranged lamellae require a relatively la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D23/06F16D25/0638F16H61/04F16H61/682F16H63/30
CPCF16D23/04F16D11/14
Inventor 诺贝特·梅滕
Owner SCHAEFFLER TECH AG & CO KG