Novel commercial automobile wheel differential mechanism assembly and assembling method

Abstract

The invention discloses a novel commercial automobile wheel differential mechanism assembly and an assembling method, and belongs to the technical field of automobile manufacturing. According to the wheel differential mechanism assembly and the assembling method, an integrated structure of a driven bevel gear and a left shell of the differential mechanism is adopted, an anti-rotation cross shaft assembly is integrated on a right shell of the differential mechanism, and a good lubricating system is arranged, so that the phenomena that the driven bevel gear is broken during connecting bolts, a driving bevel gear and the driven bevel gear are in collision with each other, and a spherical surface of a planetary gear of the differential mechanism is seriously worn can be eliminated; connectingparts are also reduced, processing and assembly processes are convenient, the production takt is improved, and the transmission efficiency and the reliability of the product are improved; compared with an original structure, the weight is reduced by 7.9%, and the cost is reduced by about 6%; and compared with an wheel differential mechanism assembly with different speed ratios, the right shell ofthe differential mechanism can be commonly used and interchanged, so that the organization production is facilitated, the interchangeability of the product and the organization efficiency of spare parts are also improved, and therefore the purposes of light weight, economy and refined production are achieved.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, and in particular relates to a novel commercial inter-wheel differential assembly and an assembly method. Background technique [0002] The inter-wheel differential assembly is set up to adjust the speed difference between the left and right drive wheels. When the car is turning or driving on an uneven road, in order to ensure that the left and right driving wheels can roll at different speeds, the inter-wheel differential assembly is required to differential the left and right driving wheels, so as to ensure that the driving wheels on both sides can rotate at different speeds. Do a pure rolling motion. Providing an inter-wheel differential assembly with stable quality, excellent lubrication, high transmission efficiency, few parts, light weight, good assembly process performance and low price will definitely bring advantages to enterprises in the fierce market competition. [...

AI Technical Summary

Problems solved by technology

The disadvantages of using the above structure are: 1. When the car is running with a heavy load, and when it is repeatedly running forward and reverse, it is easy to cause fatigue fracture of the driven bevel gear connecting bolt; 2. Because the cross shaft hole of this structure is through the left, The right differential case is machined together, the process is complicated, and there are many processing procedures, which will affect the production rhythm when the output is large; 3. When the car is driving on a road with many curves, the speed of the left and right driving wheels is different, and the difference between the wheels The transmission is running at all times, because the planetary gear gasket does not prevent rotation, it will cause serious wear on the spherical surface of the planetary gear of the differential case

[0004] Since this structure uses bolts to connect the driven bevel gear to the differential sub-assembly, there have been phenomena such as broken feedback connecting bolts, toothing of the driving and driven bevel gears, and severe spherical wear of the planetary gears of the differential case in the market for a long time. , and the assembly accuracy of this structure is difficult to guarantee, affects the transmission efficiency, the processing and assembly process is complicated, and the overall quality is large.

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