Precautions for excavator milling machine construction, what is the function of excavator milling machine?

(1) After the construction of each cycle is completed, immediately check whether the excavator milling machine is worn and whether it is loose in the tool holder. If the carbide on the milling cutter tool is worn, the milling cutter must be replaced.

(2) The length of the excavator milling head should be kept as consistent as possible to avoid additional vibration of the cutter head.

(3) Check whether the milling cutter bracket is worn. When the gap between the round rod of the milling cutter and the hole of the milling cutter bracket is greater than 3mm or cannot be fixed, replace the milling cutter bracket or the worn sleeve.

(4) Check whether the fixing bolts of the excavator milling head are firm.

(5) Check the wear condition of the spiral, and add a welding layer to the spiral strip in time.

(6) Remove the broken steel held by the milling cutter head in time.

Excavator milling machine can reach 25~40m3/h in weathered rock and other medium and low hardness rocks (varies with rock density and fragmentation). The milling machine can also mill concrete without reinforcement or with a small amount of reinforcement.

The milling machine and small milling machine equipment on the 20-ton excavator are used for concrete with a diameter of less than 30mm and 30mm steel bars. The milling and excavating machine can replace the blasting construction to avoid adverse situations such as the decrease of rock strength, loose structure, and local rupture caused by blasting vibration. It is beneficial to protect the original self-bearing capacity of the rock mass, and is not easy to cause large-scale collapse;

In tunnel construction operations, excavator milling machines can replace very expensive tunnel boring machines, shield machines and other machinery, greatly reducing construction costs; excavator milling machines are very effective in the following rock mining operations: rock with low hardness; Weathered structural rock; high hardness but the milling volume of structural layers can reach 80-120 tons (subject to rock hardness); the milling machine can replace the excavator for construction and protect the environment.

Excavator milling machines play a very important role in tunnel construction processing. In places where many large-scale equipment cannot handle, milling machines and excavators can effectively mill the soil in the tunnel, and can repair the inner wall of the tunnel to ensure subsequent tunnel construction.

Urban tunnels The excavation of rocky cities is easily affected by ground buildings and mountain rock formations, and has very high requirements for surface settlement. If traditional construction methods such as blasting or breaking hammer are used, it is easy to cause excessive excavation, which will have an irreversible impact on the surface buildings or mountains.