Integrated type real-time four-wheel-drive differential assembly

Abstract

The invention discloses an integrated type real-time four-wheel-drive differential assembly and belongs to the technical field of mechanical transmission. The integrated type real-time four-wheel-drive differential assembly comprises a differential housing and a differential component; the differential housing comprises an outer shell and an inner shell; the outer shell is in transmission connection with a vehicle power supply; the inner shell is rotationally arranged inside the outer shell in a supporting manner; the differential component is arranged inside the inner shell; a driving friction pair is arranged between the outer shell and the inner shell; an active driving friction plate of the driving friction pair is linked with the outer shell; a passive skid-limited friction plate is linked with the inner shell; and one side of the driving friction pair is provided with a thrust structure used for pressing and the active and passive driving friction plates. The integrated type real-time four-wheel-drive differential assembly disclosed by the invention is installed inside a reduction gearbox of a driven axle of a real-time four-wheel-drive vehicle, can realize power supply and separation of the driven axle without a center differential or transfer box, is simple and reliable in structure, low in cost, simple to operate and quick in response, and can also realize speed difference of left and right wheels of the driven axle in a four-wheel-drive model.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to an integrated timely four-wheel drive differential assembly. Background technique [0002] Ordinary passenger cars are generally two-wheel drive vehicles, but in the actual driving process, some road conditions require four-wheel drive, such as driving on wet, icy, and uneven roads or when the wheels are stuck in mud pits or climbing slopes. The vehicle needs a large driving force, and both the front and rear wheels need power drive to improve the passing performance of the vehicle. Four-wheel drive vehicles generally need a central differential or a transfer case to realize the power supply and separation of the passive axle. However, the structure of the central differential is complex, the cost is high, and the failure rate is also high. Although the structure of the transfer case is simple and reliable, The cost is low, but for a time-sharing four-wheel drive...

AI Technical Summary

Problems solved by technology

Four-wheel drive vehicles generally need a central differential or a transfer case to realize the power supply and separation of the passive axle. However, the structure of the central differential is complex, the cost is high, and the failure rate is also high. Although the structure of the transfer case is simple and reliable, The cost is low, but the time-sharing four-wheel drive vehicle with a transfer case needs to stop and manually operate every time the driving mode is switched, which is cumbersome to operate

Although this structure does not require a central differential or a transfer case to realize the power supply and separation of the passive axle, and does not require parking operation, the structure is simple, the cost is low, and the operation is simple, but when switching to the four-wheel drive mode, the passive axle The left and right half shafts are connected and locked with the output housing at the same time, and the differential speed cannot be realized, which will cause the wheels to slip during the driving process of the vehicle, thereby aggravating tire wear, increasing power and fuel consumption

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