Six-gear electro-hydraulic AMT assembly

Abstract

The invention belongs to the field of transmissions, and discloses a six-gear electro-hydraulic AMT assembly. The six-gear electro-hydraulic AMT assembly comprises a six-gear AMT, a gear selecting and shifting actuator, an electro-hydraulic actuator, a hydraulic oil pipeline and a release bearing; the gear selecting and shifting actuator is an electric gear selecting and shifting actuator, the gear selecting and shifting actuator is arranged on a shell of the six-gear AMT, and one end of the gear selecting and shifting actuator extends into the six-gear AMT and is used for driving shifting fork shafts of the six-gear AMT to axially rotate or axially move; the electro-hydraulic actuator is arranged on the shell of the six-gear AMT, one end of the electro-hydraulic actuator is connected with the release bearing through a hydraulic oil pipeline, the release bearing is arranged on the shell of the six-gear AMT, in the using state, the release bearing is matched with a clutch, and the electro-hydraulic actuator is used for controlling separation and combination of the release bearing and the clutch. The electric and hydraulic integrated control principle is adopted, the advantages of a hydraulic executing mechanism and an electric executing mechanism are combined, the gear selecting and shifting process can be stable, impact is avoided, and meanwhile the advantages of being compact in structure, small in size and the like are achieved.

Description

technical field [0001] The invention belongs to the field of transmissions and relates to a six-speed electro-hydraulic AMT assembly. Background technique [0002] Existing AMT assemblies have different structures, including modularization of peripheral connectors, integration of connecting components, and combination of modules and integrations. Each structure has its own advantages according to its application. shortcoming. Among them, the actuator is an indispensable part of the AMT assembly. At present, there are mainly three types of actuators: pneumatic, electric and hydraulic. The hydraulic actuator is also equipped with electric and hydraulic methods. The main factors for the selection of the actuator include reliability, economy, simple structure and convenient maintenance. [0003] At present, the commonly used actuators of AMT assembly are pneumatic actuators, which are driven by an external air source, although they have a relatively low cost. However, the ent...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned prior art, in which the AMT assembly actuators mostly use pneumatic actuators, which require the entire vehicle to provide an air source, and the arrangement of the air path is complicated, which in turn leads to easy interference with the entire vehicle, and the noise is large during operation, and the work is difficult. The disadvantage of poor speed stability, a six-speed electro-hydraulic AMT assembly is provided

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