Transfer case planet gear inter-shaft differential mechanism and gear planet carrier thereof

Abstract

The invention discloses a transfer case planetary gear inter-shaft differential mechanism and a gear planet carrier thereof. The transfer case planetary gear inter-shaft differential mechanism comprises a front output shaft, a supporting shaft, a gear ring, a planet wheel, planet shafts, the gear planet carrier, a sun wheel and a rear output shaft, positions, corresponding to the planet shafts, of the shaft mounting section of the supporting shaft are provided with first planet shaft mounting holes; the front output shaft sleeves the outer side of the supporting shaft, the gear planet carrier comprises a planet mounting section and an input gear section which are integrally formed, a planet mounting cavity and mounting columns are sequentially arranged on the planet mounting section in the circumferential direction at intervals, the two mounting columns jointly define the planet mounting cavity, all the mounting columns arranged on the same circumference jointly form a sun mounting cavity in a surrounding mode, a connecting holes and a positioning hole are formed in the end face of one sides, close to the supporting shaft, of the mounting columns. and positions, corresponding to each planet mounting cavity, of the input gear section are provided with second planet shaft mounting holes. According to the transfer case planetary gear inter-shaft differential mechanism and the gear planet carrier, the size and the weight of a transfer case are reduced, and the arrangement and the light weight of a whole vehicle are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of inter-shaft differentials of transfer case planetary gears, and more specifically relates to a transfer case planetary inter-shaft differential and its gear planet carrier. Background technique [0002] In an all-wheel drive off-road vehicle, power is usually transmitted to each drive shaft through a transfer case, and the differential inside the transfer case realizes the inter-axle differential. One of the important parts, it is mainly used to ensure that the front and rear wheels can rotate at the corresponding speed when the stroke is different, so as to ensure the basic requirements of driving kinematics. [0003] In the process of realizing the present invention, through understanding and investigation, it is found that the planetary gear inter-shaft differential for the existing transfer case has at least the following deficiencies: the existing transfer case internal planetary gear inter-shaft dif...

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Problems solved by technology

[0003] In the process of realizing the present invention, through understanding and investigation, it is found that the planetary gear inter-shaft differential for the existing transfer case has at least the following deficiencies: the existing transfer case internal planetary gear inter-shaft differential assembly, its structure It is: the planetary carrier and the differential input gear are designed separately, and the two are connected by bolts. In order to meet the strength and smoothness of the transmission, this structure requires that the differential input gear protrude from one end face with a diameter larger than the ring gear. The cylinder is matched with the transfer case through the bearing. Therefore, due to the existence of the planetary carrier, the axial and radial dimensions of the differential become large, and at the same time, the input gear of the differential is made very large. Large, small variable range, difficult layout, heavy weight

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