Postpositional open-type interaxle differential assembly

Abstract

A postpositional open-type interaxle differential assembly comprises an input axle assembly, a differential lock assembly and an output axle assembly. The input axle assembly comprises an input axle and an input flange, a bearing I, a cylindrical drive gear, a cross axle and a half-rear axle gear which are sequentially arranged on the input axle from front to back, the bearing I is installed in a bearing seat I, and the front end of the bearing seat I is connected with the back end of the input flange; a planet gear is arranged on the cross axle, installed on a planet gear frame and meshed with the cylindrical drive gear and the half-real axle gear, and a bearing II matched with a shell of a main reducer assembly is installed outside the half-rear axle gear; the half-rear axle gear is connected with the differential lock assembly and the output axle assembly. The postpositional open-type interaxle differential assembly has the advantages of being compact in structure, light in weight, low in production cost, long in service life, small in noise and high in transmission efficiency and capable of improving the ride comfort of vehicle driving and reducing the occurrence of the oil leakage phenomenon, and is suitable for the requirements of the high-speed tractor market.

Description

technical field [0001] The invention relates to a differential gear assembly, in particular to a rear open type inter-axle differential gear assembly. Background technique [0002] With the continuous development of my country's automobile industry and the rapid construction of expressways, increasing the average speed of automobiles and increasing the load capacity are effective measures to improve the productivity of automobile transportation, and become the trend of contemporary automobile development, which leads to the increase of engine power , This puts forward higher requirements for the entire vehicle transmission system, especially for traction semi-trailers, which require short wheelbase, high power, high load, low noise, low fuel consumption and other performance indicators. [0003] The existing driving axle products of our company cannot meet the various performance indicators of traction semi-trailers. Transmission housing planets, half shaft gears, cross shaf...

AI Technical Summary

Problems solved by technology

[0004] 1. Complex structure, difficult maintenance, poor workmanship, difficult manufacturing, high production cost

[0005] 2. The size of the cylindrical gear housing and the housing of the inter-axle differential is too large, resulting in a large inter-axle differential, small load, and poor cost performance, which is not conducive to the overall layout of the tractor

[0007] 4. Existing products have many shells, many sealing points and surfaces. These points and surfaces need to be sealed with sealant, and the lubricating oil is easy to leak; the shells are connected by bolts, resulting in long assembly process and high cost. Inadvertently causing oil leakage on the joint surface

[0008] 5. The inter-axle differential is front-mounted and far away from the oil pool. If there is no lubricating pump, the lubrication will be poor, the wear will be fast, the failure rate will be high, and the user's maintenance cost will be high.

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