Pavement cold milling machine milling tool from quangongzi's blog

Pavement Cold Milling Machine During the working process, the milling drum mounted on the lower part of the machine drives the milling cutter to rotate at high speed, and the pavement material is milled through the milling machine's own weight and mechanical forward movement. High-speed rotation of the milling cutter under the action of gravity and thrust with the milled pavement material produced a high contact stress, the contact stress reaches the limit, the pavement material is crushed and caving. With the linear motion of the milling machine and the rotation of the picks, the pavement objects are crushed and cradled alternately, thus completing the milling road work. Milling machine is usually in the alloy structure steel cutter body inlaid with carbide teeth, alloy teeth and steel cutter body with copper solder sink welding method for welding, and then re-quenching heat treatment and throwing Pills and other enhanced treatment process, made of good toughness of the cut. Pick-up alloy and trousers with steel material, as well as the structure and production process determines the use of picking performance. The accessory part of the pick includes a retainer sleeve, a preloaded gasket. The retainer is used to fix the picks and to ensure that the picks are rotated in use. Preloaded gaskets are easy to install and increase the rotation of the picks while protecting the outer surface of the picks from being worn. See the components of the picks.Road Repair Equipment - Doan Machinery

The following are the same as the "Alloy teeth are usually coarse grain tungsten carbide alloy, in the case of high temperature, high impact with good toughness and wear resistance, through copper brazing connection in the steel pants body. Milling teeth require a high weld strength, can withstand the application of the alloy teeth and knife handle at 45 ° angle, 6 tons of force generated by the bending moment and not fall off. At the same time, the upper and lower parts of the steel pants body also require different mechanical properties, the front and the road and milling waste material to produce friction requires a high hardness, the rear handle into the tooth socket, the need to absorb the milling process Impact energy, which requires better toughness. There is a reamer in the middle of the tooth, you can use the unloading pliers to pick out the pick from the tooth seat, there is no back to the groove can be used from the back of the punch directly out of the punch. Some of the cutting head is also equipped with grooves to increase the rotation performance with the ground friction process to prevent tooth picking.

Pre-pressure gasket made of high-quality spring steel, similar to the disc spring, was inverted cone. There are two uses: first to reduce the tooth wear. When the work of the rotating head if installed directly on the tooth seat, is bound to bring serious wear and tear to the knife seat, and the price of tooth seat is much higher than the pick, so to install a gasket between, so that when the rotation Only with the gasket friction, so as to protect the tooth base; Second, the cone of the gasket and the teeth of the tapered positioning surface with the exact work to ensure that the teeth in the tooth in a good alignment, The wear and tear.