Transfer case integrated central axle for an 8 x 8 drive vehicle

Abstract

The invention provides a transfer case integrated central axle for an 8 x 8 drive vehicle, which comprises two cylindrical gear planetary mechanisms and a middle-axle main reducing gear, A first planet carrier is fixed on the input shaft of the middle axle, A first sun gear is connected to the rear axle shaft, A drive cylindrical gear is integrally arranged with the first ring gear, A first differential lock is connected between the driving cylindrical gear and the rear axle shaft, A second ring gear is coaxially connected to the front axle shaft, The second sun gear is coaxially connected with the driving bevel gear shaft of the middle axle main reducer, and the driven cylindrical gear and the second planet carrier are integrally arranged, the second differential lock is connected betweenthe driven cylindrical gear and the driving bevel gear shaft of the middle axle main reducer, and the driven cylindrical gear is meshed with the driving cylindrical gear. The transfer case integratedcentral axle can reasonably distribute the torque and the rotational speed transmitted to the wheel sides of the first bridge, the second bridge and the middle bridge as well as the rear axle, and can simultaneously solve the problems that the traditional transfer case structure is inconvenient for the arrangement of the whole vehicle, and affects the weight of the whole vehicle and the off-roadperformance.

Description

technical field [0001] The invention belongs to the technical field of automobile transmission, is suitable for 8×8 driving vehicles, and in particular relates to a splitter-integrated middle axle for 8×8 driving vehicles. Background technique [0002] In order to improve loading capacity and passability, some heavy-duty vehicles and off-road vehicles use multi-axle drive. For 8×8 drive vehicles, the power of the engine is transmitted forward and backward through the transfer box. The existing vehicles use independent transfer The integrated structure of the gearbox assembly or the transfer case and the gearbox. Among them, the independent transfer case assembly increases the weight of the vehicle due to the addition of the corresponding housing and the installation of connecting parts, and the structure is cumbersome; while the weight of the transfer case integrated with the gearbox is slightly reduced, but it increases the weight of the transmission. Space size and comple...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the above-mentioned prior art, the present invention provides a transfer case-integrated mid-axle for 8×8 driven vehicles, the transfer case-integrated mid-axle has forward (first axle, second axle ), the output interfaces of the middle and rear axles can reasonably distribute the torque and speed transmitted to the wheels on both sides of the first, second and middle axles and the rear axle, and at the same time, it can solve the inconvenience of the traditional transfer case structure. Layout, issues affecting vehicle weight and off-road performance

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