Do you know what the rolling principle is when the roller is running? In order to use the machine for better construction, we need to know the relevant operation principles. Now, the taxi staff of Jinan Road Roller will talk about this problem.
1. When rolling, the road roller shall lift from the edge of the road, and the compacted road surface shall gradually move towards the middle of the road. The roll at the front side shall have a certain overlap width. The overlap width of the double roll roller and the single wheel roller shall be 250~300mm, while the overlap width of the three wheel roller shall be about half of the main roller.
2. Rolling technology of road roller: in the working process, the road roller should be started before starting, and the internal combustion engine should reach the medium speed first, then turn to the high speed. When the slope is very steep, a small roller shall be used for pre compaction first, and then a heavy roller or roller shall be used for compaction.
3. Compaction shall be carried out on a straight line, following the principle of "from light to heavy, from slow to fast, and from edge to middle (the curve section shall be first inside and then outside)". Use the method of one static pressure+3-4 shocks+1 static pressure, and the operating speed is 3-6 km/h.
4. The road roller shall be close to the paver as much as possible, and the road shall be compacted in a light to heavy way to ensure that the concrete can meet the requirements of compactness before it is cooled to a low temperature. When crushing the new asphalt pavement, in order to reduce the wrinkling and cracking of the pavement, the driver should first drive the driving wheel to the fresh mixture yard. Ensure that the speed of impact rolling is constant, do not stop or turn at will on the hot material layer, and start slowly to reduce the indentation.
In addition, the driving wheel of the roller should be placed behind both uphill and downhill. This can ensure that the rear wheel can withstand the driving force of the slope and the machine itself when going uphill, while the front wheel is preliminarily compressed on the ground to resist the strong shear force from the driving wheel; When going downhill, the impact brought by the roller's own weight is offset by the brake of the driving wheel, while only the mixture rolled by the front wheel has the shear force supporting the rear driving wheel.
This is the principle of rolling when the road roller is running. I hope to help you. Of course, you should pay attention to the maintenance of machinery and equipment. Come to our website for more information http://www.ycgjglcl.com Consult!