When the truck crane needs to turn during driving, the curve distances between the outer and inner wheels in the middle of the same time are not the same, that is, the outer direction of the crane when turning. The distance the wheel has moved is greater than the distance on the inside. If both sides of the wheel are fixed at the same time on each rigid shaft, then the speed between the two Lunjiao of the vehicle is equal. At this time, the outer wheel is rolling on the side while rolling, and the inner wheel is also the same. Therefore, when the lorry crane is driving on a straight road surface with uneven road conditions, the distance between the two lateral wheels on the actual curve will not be the same. Even if you are driving on a relatively straight road, there will still be errors in the dimensions of the tires that are carried by the truck, so there will be differences in the degree of wear, and the degree of load and pressure that it carries will vary. Basically, it is not possible to equalize the rolling half-pound of each tire. Therefore, as long as the angular velocity of each wheel of the truck-mounted crane is equal, the interaction of the tires of the vehicle on the road surface will exist. When driving on roads with obvious waveforms, one-sided tires roll while sliding, and the sliding between the crane's wheels and the road will not only increase tire wear, but also The power consumption of the truck crane increases the consumption, and under more serious conditions, the braking performance deteriorates.     When the vehicle is hung in the normal driving process, in order to make the truck crane not to slip as much as possible, it is necessary to use a differential. The differentials can be differentiated according to the nature of their work. They can be non-slip differentials and common gear differentials. Now more used is the gear differential. stainless steel gear pump,High Quality stainless steel gear pump,stainless steel gear pump Details, CN Botou Honghai Pump Co.,Ltd , https://www.gearpump.nl