What Are the Different Types of Compactor Systems?

Compaction machinery, earth-moving machinery that uses mechanical force to make soil, gravel, etc. Widely used in foundation, road, airport, dam and other projects.

Compaction machinery is divided into static rolling compactors according to the working principle, and there is a tendency to replace static compacting compactors. Impact type, vibration type and compound action type. Force compaction type compaction machinery uses the gravitational action of rollers and the vibration type of vibration action

The static rolling compaction machine uses the gravity of the roller to make the compacted layer permanently deformed and compacted. The grinding wheels are divided into: light grinding, groove grinding,

Road rollers trample, rub, and tamp the soil to treat the foundations of houses, compact dams and riverbanks. Prior to the middle of the 19th century, road engineering in the West was dominated by gravel paving, and compaction was mainly carried out by vehicles. It was not until the invention of the rock-rolling machine in 1858 that the development of gravel roads was promoted. Only then did the horse-rolled rollers be used for compaction. This was the earliest prototype of rollers. In 1860, steam rollers appeared in France. The construction technology and quality of gravel roads were further promoted and improved, and the progress was accelerated. In the early 20th century, the world recognized the gravel pavement as the best pavement at that time and spread it all over the world. The concept of compaction gradually became known, and the road rollers also came out of various road construction sites. In the middle of the 19th century, the invention of the internal combustion engine Bring great vitality to the development of compaction equipment. The first internal combustion engine-powered roller was born in the early 20th century. What followed was

In the 1970s, with the development of hydrostatic transmission technology, hydraulic control technology and computer technology, the research of compaction technology and compaction equipment has made great progress. First of all, hydrostatic transmission is applied to compaction machinery. By controlling the flow of the hydraulic system, the speed of the motor can be easily changed, and the vibration frequency of the roller can be continuously adjusted, thus simplifying the complex drive train. During this period, the research of vibratory rollers mainly focused on the optimization of vibratory roller parameters, and stepless continuous adjustment of vibration frequency and amplitude was gradually realized, which improved the compaction effect. ^[1]

Construction machinery such as road rollers are capital-intensive, technology-intensive, and related industrial products. They involve a wide range of technologies and businesses. The improvement of the technical content of the OEM products requires the close cooperation of many supporting manufacturers, about 60% -70%. The matching parts need to be provided by a professional factory. The main content of roller main machine production is the overall design of the product, manufacture of structural parts, purchase and assembly of product supporting parts. After more than 40 years of continuous development, China's road roller industry has made great progress. Especially since the 1990s, the production and sales of rollers have grown rapidly. The number of enterprises joining the production of rollers has continued to increase, so that more than 80 roller manufacturers can produce 5-30t vibratory rollers, 4-24t static rollers, and 16-30t tires. A series of more complete and complete specifications such as rollers has basically formed a complete roller manufacturing system capable of independent development and production. The gap between its technical level and the international advanced level is gradually narrowing. This rapid growth situation is bound to push the road roller accessory industry to a new development period. 2007 is an important year of the national Eleventh Five-Year Plan. Road construction has been further strengthened. The construction of roads in various places has been advanced earlier, which has stimulated the increase in market procurement demand to a certain extent. In 2007, the country s road roller sales reached 9,841 units, continuing Growth momentum. The sales volume of rollers continued to increase. Eighteen roller companies from January to June sold a total of 6,086 rollers. Sales of major products increased by 16.43% over the same period in 2007. ^[1]

With the continuous development of China's society and economy, the domestic demand for rollers has continued to increase, and foreign famous roller manufacturers have also increased their investment in the domestic market, which has caused a certain threat to the market share of Chinese enterprises. In 2012, China's roller exports Growth slowed. After years of development, the production and sales volume of China's road roller industry has increased year after year, and the industry has gradually entered a mature period. It has made a great leap in technology research and development and market expansion. As China's investment in infrastructure construction continues to increase, large-tonnage rollers will still be subject to the construction unit due to its high-efficiency compaction effect, and its market situation will continue to improve. ^[1]

The low temperature makes it difficult to start the engine. The main reasons are the increase in the viscosity of the lubricant, the decline in the battery's working capacity, and the viscosity of the fuel atomization. Increased resistance. When the battery is at a low temperature, the viscosity of the electrolyte also increases, the permeability decreases, and the increase in internal resistance significantly reduces the battery capacity and terminal voltage, and even fails to discharge. The voltage drop makes the starter unable to obtain the required output power, and it is difficult to meet the requirements of the starting speed. Due to the low temperature, the crankshaft rotation speed of the engine is not high, the temperature of the intake pipe and the gas flow rate are low, and the atomization quality of the fuel is poor, which further increases the difficulty of starting the engine. Under low temperature conditions, various oils have high viscosity and poor fluidity, which makes the operation of the roller difficult and exacerbates the wear of the parts. The viscosity of the lubricating oil is large, and the power loss of oil stirring is increased during the operation of the mechanism, which reduces the engine power and reduces the efficiency of the transmission system, thereby reducing the driving ability of the roller walking and excitation mechanism. The poor fluidity of the lubricating oil adds difficulty to the lubrication of certain components and reduces the lubrication effect, thereby exacerbating the wear of the engine and transmission parts. The high viscosity of the working oil also increases the resistance of the pipeline, making the hydraulic steering difficult, the efficiency of the hydraulically driven brakes worsening, adding difficulties to driving, and adversely affecting safe driving. There are also widespread freezing hazards during construction in cold seasons, for example: freezing of the electrolyte of the battery will cause it to stop working; freezing of the cooling water of the water-cooled engine will freeze and crack the radiator and the cylinder block. ^[1]