The maintenance work belongs to the "skin care" of mechanical equipment. Through proper maintenance, mechanical equipment can keep good working state for a long time. So in the construction process to do the following aspects of work.
First, rational use of picks.
The greater the milling depth, the longer the tool contact with the material, the more friction heating. In order to avoid the thermal erosion of the carbide tool head, the amount of water sprayed on the cooling tool head should be increased. When the milling depth is shallow (below 6cm), cooling water spray should be reduced in order to output the material, so as to avoid the contact between the tool and the material being milled down, and reduce tool wear. Check the rotation and wear of the tool every 6-8 hours to ensure that the installed tool rotates freely in the holder.
The tool wear should be replaced in time when serious. When replacing the tool, try to ensure that the tool length is the same. If the milling planer has 1/2 wear need to be replaced, it is recommended to replace the whole set of tools, the wear is not serious tool recombination into a set, continue to use, so as to ensure the quality of road construction, and can prolong the service life of the tool.
Second, reasonable matching speed.
The working speed and rotor speed of the road milling machine are also the main technical performance parameters of the machine. Working speed directly affects machine productivity. Because it is affected by the type of pavement materials, asphalt mixture strength, milling depth and ambient temperature, the working speed is generally designed to be stepless adjustment to meet the requirements of the above conditions.
Third, fully protect the belt.
Belt of milling planer material-collecting receive materials from cutter milling planer down, in order to prevent the wear and tear of belt loose materials, guarantee seal rotor space and limit milling planer down old material granularity, and at the same time to ensure the reliability of belt material-collecting and belt from additional knock against, check regularly change cleaning roller, especially not turn and material of the roller, Thus reduce belt wear and form a reliable and stable collecting mechanism.
Fourth, do regular cleaning.
The cleanliness of each system is crucial to the reliability of mechanical work, some dirty and sharp solid particles are brought into the system, friction, blockage, blockage and other faults may occur at any time, and even lead to seal leakage and temperature rise, causing a series of vicious chain cycle. Regular cleaning road milling machine is indispensable in the normal operation, especially some key parts of the dirt will make the machine can not work properly. To this end, cleaning operations are not only to keep the machine clean and clean, but more importantly to ensure the safety of machinery and normal work.
Fifth, strengthen maintenance.
Milling planer has a lot of fixed parts with bolts, due to the milling planer in the work of continuous vibration and alternating load, some bolts may loose, must be timely checked and allowed to tighten, otherwise there may be oil leakage, air leakage, water leakage, electricity leakage and other sites. The relative relationship and working parameters of many parts of the road milling machine need to be checked and adjusted in time to ensure the normal operation of the machine, otherwise it may lead to unsafe work of the machine, or even accidents. The contents and parts of adjustment are as follows: clearance, stroke, Angle, pressure, flow, tightness, track transposition.
In order to keep the road safe, comfortable and fast, timely, effective and high-quality maintenance will be the focus of daily work in the future. Mechanization maintenance of milling machine as the main equipment will be the focus of daily work. The mechanized maintenance mode with milling machine as the main equipment has also been adopted in many highways in the country, becoming a standard maintenance mode under the current situation. With the arrival of the highway overhaul period and the highway traffic industry and urban management departments of the modern maintenance of the understanding of the road milling machine will be more and more widely used. The same equipment, because of the operation and popular and scientific, will have different life and use cost. It is of great significance to pay attention to the scientific use and reasonable maintenance of the road surface milling machine, so that the equipment can play a maximum effect, improve the quality and efficiency of construction, and reduce the cost of construction.
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