Dry-type double-clutch combined release bearing

Abstract

The invention relates to the field of bearings used for medium-heavy automobiles, in particular to a dry-type double-clutch combined release bearing. The dry-type double-clutch combined release bearing comprises a first release bearing set and a second release bearing set. The first release bearing set comprises a first release sleeve, a first belleville spring, a first clamping spring, a first dustproof sealing ring and a first bearing body. The second release bearing set comprises a second release sleeve, a second belleville spring, a second clamping spring, a second dustproof sealing ring and a second bearing body. The second release sleeve is sleeved with the first release sleeve in a sliding mode. A shaft shoulder at the right end of the first release sleeve is freely sleeved with the first bearing body. According to the dry-type double-clutch combined release bearing, the mutual locations of the release bearings are compact, the axial size is small, and the release bearing has the self-aligning function; unbalance loading and heating of the release bearing can be prevented, and conditions are created for developing and designing a dry-type double-clutch gearbox suitable for a medium-heavy engine with the transmission torque being greater than 250 Nm, so that the using requirements for the medium-heavy automobiles are met.

Description

technical field [0001] The invention relates to the field of bearings used in medium and heavy vehicles, in particular to a dry-type dual-clutch combination release bearing. Background technique [0002] Dual clutch is a kind of transmission mechanism that can transmit power and cut off power. Its function is mainly to ensure that the car can start smoothly, reduce the impact load of the transmission gear and prevent the drive train from overloading when shifting gears. The dual-clutch has two sets of clutches that work alternately with each other, making the shift time extremely short, and the power fault of the engine is also very limited. The shifting action is extremely fast and smooth, with a comfortable driving feeling, the power transmission process is almost uninterrupted, the efficiency is high, and the vehicle's power performance can be fully exerted. The birth of dual-clutch has made the phenomenon of power interruption and passengers "nodding" during gear shift...

AI Technical Summary

Problems solved by technology

However, compared with the traditional single clutch, the double clutch has complex structure, large size, heavy weight and high manufacturing cost.

In particular, due to the layout of the dual clutch, the dry dual clutch needs to be equipped with two sets of independent release bearings and the selected friction material. Its external dimension is larger than that of the wet dual clutch, and the transmission torque is small. Therefore, the relevant parts must The design is more compact, so it can be used in cars. At present, the dry dual-clutch gearbox is only suitable for all "small" engines with a maximum torque of less than 250Nm, that is, it is used on small cars, and it cannot meet the requirements of medium and heavy vehicles.

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