At present, the domestically produced 400-horsepower Road cold recycler machine can perform Road cold recycler operations on asphalt pavement lime soil roadbeds, and can also be used as road mixers. Foreign mainstream manufacturers have long ceased to produce special road mixers with similar power, and replaced them with pavement Road cold recycler machines. In addition to cold road roadbed recycling construction, the scope of use also includes the traditional road mixer application scope, and the construction efficiency is much higher than Road mixer. Based on foreign experience, a small cold regenerator with a power of 400 horsepower (relative to a 600 horsepower cold regenerator) will gradually replace the traditional domestic road mixer. The construction quality of the Road cold recycler machine is more stable than that of the traditional rear-rotor road mixer. This is due to the structural characteristics of the Road cold recycler machine (the milling rotor is in the middle of the two bridges), but most of the domestic 400-horsepower Road cold recycler machines Compared with the rotor road mixer, the working speed is not dominant. The WR2100L cold road recycling machine produced by Xuzhou Ruima, in practical applications, has the advantages of ordinary road mixing, which can be shifted by using dual-rotation speed rotors. It can be faster at work, the mixing effect can be adjusted, and the mixture can be beaten. More fine.

    Domestic road mixers often have only one type of rotor speed. If some manufacturers say that the speed is adjustable, it is to adjust the output displacement of the hydraulic pump. By reducing the pump displacement, the rotor speed is reduced, and the output is actually reduced at the same time. Power, which reduces the working efficiency of the machine, has no practical significance, so the driver who does not operate will reduce the rotor speed to work. Other manufacturers say that there are two gears for walking, which are two concepts with rotor working gears. At present, all road mixers produced by domestic manufacturers have two walking gears. The WR2100L asphalt pavement Road cold recycler machine produced by Xuzhou Ruima has two rotor working gears, each of which has a maximum speed, and these two speeds are full power dual speeds. In practical applications, many users have realized the advantages of dual speed. Give two practical examples.

    In October 2011, a WR2100L was constructed in Dongying. The working surface is lime soil mixing, and the required mixing depth is 35 cm, which is much deeper than the ordinary lime soil mixing work depth. At the time, there were two rear road mixers on the construction site, one WB21H from Xuzhou Leima, one WB21 from XCMG, and two mixers could only walk more than 3 meters per minute under high pressure (up to 25Mpa). , And our WR2100L uses first gear, when the pressure is 20Mpa, the walking speed can also run 7-8 meters / minute. At the end of the year, the owner of the machine went to settle. The average fuel consumption of this cold regeneration was significantly lower. According to the square calculation, the fuel consumption was 40% lower than that of the road mixer. This is a low-speed, high-torque application. There is also a construction site. In Zibo, the owner requested that the mix of lime and soil should be fine. In order to meet the requirements, the general rear road mix needs to be beaten twice to meet the requirements. This user's WR2100L uses the second gear and reaches the owner in one pass The requirements of the construction site are the pursuit of efficiency, and it is definitely more fuel efficient than one knife to meet the requirements.

    In the practical application of lime soil mixing, the owner generally works in first gear. The machine is strong, the working speed is fast, and the loss is small. The working speed is obviously faster than the road mixing.

    In the cold recycler's bank, the asphalt pavement cold recycle construction, the working gear can also be flexibly selected. When the work surface is hard, the first gear is used, which is significantly faster than other 400-horsepower Cold recycler and the crushing granularity It meets the requirements. If the working surface is soft, with the second gear and high speed, the finished material can be made finer than the other 400-horsepower Cold recycler. Flexible applications, all in the field.

    Increasing the gear speed of the rotor increases the cost of the whole machine, but the benefits brought by it are far higher than the increased costs. When developing various types of machines, Xuzhou Ruima always puts machine performance first, and puts cost in a secondary position, and is a domestic pioneer in machine technical performance.