Each mechanical product has a different working state when it is working, and the different ways of use make the equipment show different forms. The rear axle of the heavy-duty vehicle is equipped with a differential. The equipment is not closed when it is used and kept in The position of the front end of the differential lock mechanism. At this time, the front and rear differential gears can run at a constant speed or at different speeds according to the form of the car.
When the rolling radii of the wheels are basically the same and the car is driving in a straight line along a flat road, the rolling resistance of the wheels of the car is basically the same, and the wheels are rolling at the same speed. At this time, the planetary gear of the rear axle of the car only revolves with the cross shaft and the differential case, and does not have a differential effect. When there are differences in the operation of the wheels of the car, for example, the car is steering or driving on uneven roads, the wheel rolling radius is not equal, the resistance of each axle wheel is different, and the planetary gears of the rear axle of the car are in the above-mentioned revolution movement. At the same time, it also rotates around the cross shaft, that is, autotransmission occurs while revolving, so that the power split is output at different speeds, and the differential acts as a differential while transmitting torque.
When a car is driving on a muddy road and a unilateral wheel is slipping and idling, the differential lock switch is operated, and the compressed air is passed to the differential lock working cylinder through the solenoid valve. The piston push rod of the working cylinder will engage the engagement sleeve through the shift fork. It meshes with the meshing sleeve, so that the half shaft and the differential case are integrated, in other words, the left and right half shafts are integrated, so that the car can smoothly drive out of the muddy road.
In summary, we can see that on different road conditions, the rear axle of heavy-duty vehicles can play different roles under different road conditions. The speed ratio of the car is increased, and the gap between the chassis is enlarged, so that the performance of the car has been greatly improved.
