Transmitting ratio variable slip-limiting speed differentiator

Abstract

The invention relates to a variable transmission ratio limited-slip differential with self-locking function, which comprises a differential case (1), a variable transmission planet gear (2) and a differential side gear (3) arranged in the differential case, a cam ring (5), a locking ring (7), a returning spring (8) and a spring shield (9) arranged between a back end face (4) of the differential side gear and the back end face (6) of the differential case, a friction plate (10) arranged on outside the differential side gear (3), a central block (1) and a cross shaft (12) arranged in the middle of the differential. The parts constitute a self-locking mechanism. The invention provides a limited-slip differential which can realize self-locking on an extreme road and be automatically unlocked when coming off the extreme road, thereby improving the trafficability and the safety of vehicles. The variable transmission ratio limited-slip differential is particularly suitable for cross-country vehicles and various wheeled engineering machinery, such as dump trucks, wheel loaders, bulldozers and so on.

Description

technical field [0001] The invention relates to a limited slip differential, in particular to a variable transmission ratio limited slip differential with a self-locking function. Background technique [0002] In order to overcome the slipping phenomenon of individual driving wheels of the car on bad roads, the limited slip differential came into being. According to the working principle, the limited-slip differential can be classified into internal friction type, overrunning type, electronic automatic differential lock, electronic braking limited-slip differential system combined with ABS braking system, and variable transmission ratio type. Among them, the variable transmission ratio limited-slip differential has the advantages of simple structure, reliable performance and no negative traction force, so it has been widely used. However, the limited-slip differential with variable transmission ratio has the disadvantage that the locking coefficient is limited by the variat...

AI Technical Summary

Problems solved by technology

Compared with the previous single-stage variable transmission ratio limited-slip differential, this three-stage variable transmission ratio limited-slip differential improves the locking performance of the differential, but it still does not fundamentally get rid of the locking The performance is limited by the range of speed ratio changes

Therefore, in the face of extreme road conditions, the locking performance of the three-week variable transmission ratio limited slip differential is still relatively limited.

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