2016 heavy truck sales: where is the road

The road roller is one of the necessary mechanical equipment for the current road construction. Today, we are going to talk to you about the tire roller. In fact, the working principle of the roller is almost the same, the same is different, so the small editor simply summarizes some of its own characteristics.

Tire roller is a compacting machine that relies on mechanical self weight and compacts the laminated material with static compaction to increase the density of working medium. In addition to the vertical compacting force, it has a horizontal pressure. This kind of horizontal pressure not only has the effect of compacting along the direction of the mechanical driving, but also has the effect of compacting along the transverse direction of the machine.

One of the characteristics of pneumatic tire is that it can change the pressure inside the tire to limit the maximum compressive stress on the surface of the compaction material, so as to improve the compaction effect. Under the same gravity load, the maximum compressive stress of pneumatic tire is smaller than that of smooth steel wheel, and the bearing capacity of ply material surface is also relatively small, so that the lower material can be well compacted.

Therefore, the tire roller can improve its compacting performance by changing the load of the inflatable tire or adjusting the inflated pressure of the tire to expand its use range. And the steel wheel roller can only change the load of the line by changing the load of the roller. The radial deformation of the tire increases while the tire is crushed for many times, and the deformation of the tires decreases as the strength increases.

The reduction of ply deformation will cause the contact area of tire to be reduced, so that the contact compressive stress will increase, and the pressure at the end of compaction will be 1.5~2 times of the first time rolling pressure. At the same time, the rolling resistance of the inflatable tire also decreases with the increase of the layer strength, which can greatly improve the rolling effect and the compaction quality.

It can be seen that the tire roller, which uses inflatable tires as working devices, can be rolled for various types of materials, including sticky materials and non - adhesive materials.

Due to the pressure strength can along each direction acting on the material particles, a kneading effect plus the elasticity of tire produced by the compaction effect is excellent, so can get the maximum density.

If smooth steel wheel compactor compacts asphalt mixture, the contact line of steel wheel will form a "crossing bridge" phenomenon between the large particles of asphalt mixture. The gap left by this bridge will produce uneven compaction. On the other hand, rubber tyres are flexed and compacted along these outlines to produce better compacted surfaces and better compactness.

At the same time, due to the flexibility of the tire, it is not to push the asphalt mixture in front of it, but to cover the initial contact point for the mixture, and give the material a great vertical force, which will avoid the frequent cracks in the smooth steel roller. In addition, the tire roller also has the characteristics of increasing or reducing the weight of the tire and changing the pressure of the tire inflating, which is more conducive to the compaction of all kinds of materials.

Based on the above characteristics, base layer, tire roller has been widely applied to various materials of the basic layer, fill and asphalt pavement compaction; especially in compaction of asphalt pavement, tire road flexible compaction machine unique function is unable to substitute other compaction equipment, and thus become the main mechanical asphalt mixture the complex pressure, but also the construction of high-grade highways, airports, ports, dams and industrial construction compaction equipments.

Wonderful recommendation:

31 wisdom Metro will hatch more entrepreneurial opportunities

Excavate a good partner, a new series of crushers in Dou Shan

Just up the embankment to celebrate the 2016 end