Hydraulic Amplitude Steplessly Vibratory Roller Compaction Degree Detection And Automatic Adjust Frequency & Amplitude System Research

Stepless adjust frequency and amplitude technology is widely used for vibratory roller, first, request compaction controlling system can give the amplitude frequency control system specific signal parameters, to make the amplitude frequency control system timely and accurate adjustment of excitation frequency and amplitude, achieve efficient high-quality compaction pavement materials.Based on a hydraulic cylinder piston steplessly am vibratory rollers, by changing the combination eccentricity of eccentric block to adjust amplitude, therefore roller amplitude and vibration frequency can be adjusted by hydraulic system. Amplitude adjustment by a hydraulic loop to change the relative position of activities eccentric block(piston) and static eccentric block(Hydraulic cylinder block with counterweight) to achieve. Stimulating frequency regulation also by a hydraulic loop control. Through a variable pump and quantitative motor composed of the system to change than quantitative motor emissions ratio, which changes vibration shaft speed(Vibration frequency).The amplitude and frequency control system in the adjustment of the amplitude and stimulating frequency, need certain control parameters and control relations. According to the same kind of be compaction materials in different compaction degree its acceleration response is different, according to a particular kind of be compaction materials in different degree of compaction test the acceleration response, we can get the relationship between acceleration and soil compaction degree, to build the relationship between corresponding database,thus establishing the relationship between corresponding database. Meanwhile, the materials in different compaction degree have a best compaction amplitude and stimulating frequency, so also can use test ways to obtain the corresponding relationship between soil compaction degree and its compaction best amplitude and stimulating frequency. Through the above two steps,we can build the corresponding relation database of acceleration-soil compaction degree-amplitude and stimulating frequency.In database as the base, and establish detection acceleration signal detection system, give the amplitude and stimulating frequency control system by a signal, make the amplitude and vibration frequency of vibration compaction adjusting accordingly, achieve rapid, efficient construction purposes.