Intermediate axle main reducer assembly provided with rear bevel gear engaging and disengaging mechanism

Abstract

The invention relates to an intermediate axle main reducer assembly provided with a rear bevel gear engaging and disengaging mechanism. The intermediate axle main reducer assembly is formed by a rearbevel gear engaging and disengaging mechanism assembly, an inter-gear differential mechanism and inter-gear differential lock assembly, a driving conic gear assembly and a through shaft assembly. Theintermediate axle main reducer assembly achieved the aims that transmission efficiency is improved, fuel consumption is saved, and additional incomes are increased for users. An inter-axle differential assembly only needs to be eliminated on the basis of producing the intermediate axle main reducer assembly at present, the rear bevel gear engaging and disengaging mechanism is adopted, the rear bevel gear engaging and disengaging mechanism is cut off, and therefore the torque transmitted to a rear drive axle can be cut off, conversion of 6*4 and 6*2 drive manners of a whole vehicle can be achieved, a reduction shell, an upper cover and a transmission shaft do not need to be modified, the assembly is suitable for a full-series through axle, the development cost is low, and transverse expansion and adaptability are high. The rear drive axle can be lifted, the turning radius of the whole vehicle can be improved, the requirements of vehicle running for sites can be reduced, tire wear can also be reduced, tire expenses are saved, and higher economic benefits are brought to users.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, and in particular relates to an intermediate axle final reducer assembly with a rear bevel gear clutch mechanism. Background technique [0002] Article 4.3 of the national mandatory standard "GB1589-2016" clearly stipulates that the maximum allowable total mass of automobiles, trailers and automobile trains should not exceed 49 tons, that is, the maximum allowable total mass limit of 6×4 tractors is reduced from the original 55 tons to 49 tons. With the requirements of this regulation, the overloading of commercial vehicles will be effectively controlled, and the lightweight design of commercial vehicles, the improvement of transmission efficiency, and the saving of fuel consumption will increase additional income for users. [0003] At present, the most mainstream heavy-duty commercial vehicle with the largest stock in the market in China is the 6×4 tractor. Because the 6×4 tra...

AI Technical Summary

Problems solved by technology

This scheme seems to be a nearly perfect solution, but the tooth profiles of the current driving and driven cylindrical gears are all helical, which causes a large axial force generated by the driven cylindrical gear during operation. In this structure, because a clutch mechanism is installed at the end of the driven cylindrical gear, it is extremely difficult to fix the driven cylindrical gear in the axial direction, and it is easy to cause axial disengagement during operation.

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