What is the milling efficiency of the excavator drum cutter head? Does the design of the cutter head of the excavator affect the efficiency?

Writer： admin Time：2022-11-17 23:09:46 Browse：242℃

The speed, high efficiency and function of the drum cutter head of the excavator are closely related to the geological environment of the milling and digging, the hardness and softness of the surrounding rock, the position of the milling and digging, the angle of view, the orientation, and the construction sequence.

According to on-the-spot statistical analysis, soft rock with low compressive strength (≤10MPa) can excavate 25m3 of foundation pit per hour, and the footage of this kind of surrounding rock is short, 0.6~1m, the cross section is limited by steps, and the total area is small , can be carried out within 2 to 3 hours.

When encountering abnormally weak surrounding rock along the river, due to the poor stability of the surrounding rock, when the foundation pit is excavated close to the nearby surrounding rock, the rock layer of about 30cm must be pre-buried and the piles must be cleared manually with an air pick. 

The under-excavation of the milling machine is suitable for renovation, and the control of the digging depth is good. The principle of the milling machine is to drill rocks. The center line of the excavation of the foundation pit is relatively smooth, and the excavation depth is significantly reduced.

The advantages of the milling and digging method involve various fields, such as: the overall body design of the excavator milling head is excellent, the overall body can rotate in multiple directions, and can work normally at every angle of rotation;

The milling head of the excavator not only has a strong waterproof function, but also can work normally in 30m of water; The period of use is increased;

The daily maintenance and repair of the milling machine are particularly convenient and convenient, and there are no complicated technical standards.

During the construction of the milling head of the excavator, the milling head and the base are the most likely to be damaged and worn, and the price of the milling head is relatively high. In order to ensure the normal construction of the excavator milling head, the project The following problems need to be paid attention to during construction:

(1) Immediately after the construction of each cycle, check whether the milling cutter is worn and whether it is loose in the cutter head. If the cutting edge of the milling cutter containing the carbide cutter has been worn out, the milling cutter must be replaced .

(2) The blade length of the milling cutter should be as consistent as possible to prevent additional vibration caused by the blade.

(3) Check whether the milling cutter holder is worn. When the distance between the milling cutter round rod and the milling cutter holder hole exceeds 3 mm or cannot be fixed, replace the milling cutter holder or the wear sleeve size.

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

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

(6) Immediately remove the broken steel caught in the milling head of the excavator.

According to the different orientations of the excavator milling head, the excavator milling head can be divided into two series of products: the horizontal excavator milling head and the vertical excavator milling head.  According to the diameter and output power of the excavator milling head, it is divided into various grades and specifications. Horizontal milling and digging machines are widely used in practical applications.

As a new type of mechanical equipment, the excavator milling head has only been around for more than ten years. According to the actual needs of the project, a series of horizontal and vertical milling machines have been designed and developed. At this stage, the company has mastered the excellent design, product development and production technology of milling and digging machines.

The milling head of the excavator is developed and designed through the excavator, and the design of the milling head of the excavator is the same as that of the cutting head of the excavator. The development of overseas excavation machinery and equipment has a history of nearly 80 years.

After a lot of experiments, many countries have established mathematical stress models of cutting teeth and cutting heads. On this basis, Germany looks for the design and method of laser cutting tissue enhancement based on analytical research. On the premise of this basic theory, the milling and digging machine was designed and developed, which further expanded the application range of the excavator.

The company uses advanced technologies such as computer simulation, dynamic data visualization design, and upgrading design for scientific research on the design of milling and excavating machines, which promotes the rapid development of the basic theory of milling and excavating machines.