The differential lock is a familiar truck device for our truck drivers. When the vehicle is walking on a muddy road, the differential lock is opened to lock the differential and enhance the vehicle's capacity. Wheel differential lock, differential lock between axes, how differential lock is also divided into many kinds? Many card members do not know much about this, but here's a brief introduction to common differential locks and how to use them.

● Differential lock allows both sides of the wheel to turn at the same time

Everyone knows that when the vehicle is turning, the speed of the wheels on both sides is not the same. At this time, the work of the differential is required to ensure the normal running of the vehicle. There is a card friend who does not know much about the differential. The principle of the circle of five differentials on the right side of the circle is as simple as this article.

Vehicles without differential locks, although they may allow the left and right wheels to rotate at different speeds, but when one of the wheels is idle or skid, the other wheel on a good road will not get the torque due to the differential, and the vehicle will Losing the power to drive, the differential was a mistake.

In this case, if the vehicle is equipped with a differential lock, it can be turned on to let it work. The differential lock can lock the differential, allowing both sides of the axle to rotate at the same time. After the wheels are driven, they can get out of trouble and allow the vehicle to run normally.

● There are two types of wheel lock and differential lock between shafts

With the development of automotive technology, there are many kinds of differential locks. Today we do not introduce too much. We will introduce the common wheel-to-axle differential locks on trucks.

Inter-vehicle differential lock, as the name implies, is used to lock the differential device, so that it loses the differential effect, to achieve two hard-wired connection, the vehicle equipped with a differential lock generally has its control button on the instrument panel. The vehicle has only one axle and only equipped with inter-wheel differential locks. The current common differential lock is an electric gas control scheme. The keys on the instrument panel are electronic switches. After the switch is pressed, the solenoid valve located in the axle housing is energized to control the compressed air to lock the differential lock.

Careful card friends in the rear of the double bridge vehicles, will find in the center console in addition to wheel differential lock keys, in addition to it next to a button, this button is the axis of differential lock. The effect of the differential lock between the shafts is the same as that of the wheel differential lock, except that it locks the differential on the bridge so that the two drive axles achieve a hard link and the two drive axles rotate at the same time. The vehicle passes through muddy, slippery roads.

● Correct use of differential lock can help

Although the current trucks are all equipped with standard differential locks, there are problems with the use of many card members. The following will take the Shuangqiao truck as an example to explain the normal operation method of the differential lock.

First, the differential lock should be used in the following conditions

1. When the vehicle passes through muddy and slippery sections;

2. When the vehicle traps need to get out of trouble;

3. When the vehicle is heavily loaded on a slope (≥20%) uphill;

Second, the use of differential locks:

Differential lock use: The axle and wheel differential of the drive axle are controlled by the differential lock switch on the dashboard of the cab; when the vehicle is stuck in a muddy or slippery road, the vehicle is at low speed or at rest. Press the differential lock switch, release the accelerator pedal, and steer properly. The indicator light is on, indicating that the differential is properly engaged.

Differential lock off: The road condition is improved (the road becomes better). When running at low speed or constant speed, release the accelerator pedal, press the differential lock switch, and turn it properly. The indicator light goes off, indicating that the differential has been disengaged.

Third, use the differential lock in the following order:

1, first lock the wheel differential lock;

2. If the wheel differential lock does not work, then lock the shaft differential lock.

3. When the vehicle is heavily loaded on a relatively steep slope (≥20%), the differential lock between the shafts is locked separately, but at this time, there is no need to lock the wheel differential lock;

● Precautions Never use when turning a vehicle

The differential lock must be used when the vehicle is stationary or at low speed, otherwise serious damage to the differential and other parts may occur. After passing through muddy and slippery sections, it is necessary to press the differential lock switch back in time and the indicator light goes off, indicating that the differential has been disengaged.

In the end, the emphasis is on the key. Do not use differential lock when turning a vehicle! ! ! Why? Because the differential lock locks the differential, the rotation speeds of the wheels on both sides of the vehicle's turning axle are not synchronized, which will damage the main reducer and the differential. Because the differential is forgotten to close, the accidents of the main reducer and the differential occur from time to time. Therefore, the card members must pay attention when they are used, so as to avoid unnecessary losses.

● Postscript:

For those who often run transportation, it is inevitable that they will walk some muddy roads and get stuck in cars. At this time, they need to use differential locks to pass smoothly. A simple action can open the differential lock, but if used improperly, it will cause damage to the final drive and the differential. We hope that the card readers can use the differential lock correctly after seeing this article and make it become your driving. A good helper.

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