Views: 0 Author: Site Editor Publish Time: 2021-07-21 Origin: Site
Road milling machinery is widely used in the maintenance of asphalt pavements. Road milling machinery is highly efficient and easy to use, and more and more work is carried out through it. Now let’s introduce road milling machinery.
Here is the content list:
l What is the road milling machinery?
l What is the road milling made of?
l What should be paid attention to when milling asphalt concrete pavement?
What is the road milling machinery?
Road milling machinery is one of the main types of asphalt pavement maintenance and construction machinery. It is mainly used for the excavation and renovation of asphalt concrete surfaces such as highways, urban roads, airports, freight yards, and parking lots. Road milling machinery can efficiently remove road congestion, oil waves, nets, ruts, etc., can also excavate pavement pots and grooves, and can also be used for roughening of cement pavements and milling of staggered surfaces. Because road milling machinery has high working efficiency, simple construction technology, easy control of milling depth, convenient and flexible operation, good maneuverability, and old materials can be directly recycled, it is widely used in the maintenance and renovation of asphalt pavement.
What is the road milling made of?
Road milling machinery is generally composed of engine, chassis, milling rotor, sprinkler, aggregate conveying device, hydraulic system, etc.
The milling rotor is the main working part of the road milling machine. It is composed of a milling shaft, a milling tool holder, and a road milling bit. The milling rotor can be divided into two types: fixed width and variable width.
(1) Milling axis: When the milling machine is working, the power is transmitted by the milling axis, and the milling tool holders are arranged on the milling axis. The arrangement of the cutters is distributed in a symmetrical single-head or multi-head helix. The direction of the helix should ensure that the milled bulk material is thrown to the center of the shaft when the rotor is working so that the cutting material is concentrated in a pile.
(2) Milling tool holder: There are two ways to fix the milling tool holder: welding and screw fastening. The seat body is generally forged with high-quality steel. The seat hole is used to install the road milling bit. The hole is processed with an annular groove and uses an elastic spring. The piece clamps the road milling bit in the seat hole.
(3) Road milling bit: The road milling bit is a bullet-shaped structure, which is welded by two parts of the knife tip and the knife body. The road milling bit directly rubs with the road surface when it is working. To make it wear evenly, the road milling bit must be able to rotate freely in the tool holder. Road milling bit is the main consumable part of cold milling machine.
What should be paid attention to when milling asphalt concrete pavement?
(1) The original pavement structure shall not be damaged during the excavation process, and it shall not be damaged. The excavated waste materials shall be transported to the place designated by the owner and shall not be disposed of privately.
(2) The longitudinal slope formed by road milling machinery on the cross-section is straightened with a pneumatic pick and then trimmed manually with a pick. When removing waste, attention should be paid to the removal of the longitudinal surface of the transverse joint, and the loose particles should be removed with a wire brush.
(3) The road grooves that have been excavated and milled should be thoroughly removed with an air compressor in time.
(4) During the construction process, the intention should be to prevent damage and pollution to other structures. Do not arbitrarily reverse the waste material after milling and planning and excavation.
Today, road milling bit technology has been well developed. And the popularity of road milling bits is very high, and gradually tends to the unification of international standards. If you are in the road milling bit business, RUIAN FLY MACHINE PARTS CO., Ltd. is an ideal choice.
