02-13-2017, 01:27 PM
????In the compaction of rock fill, ice soil and Weng soil, are required to use large tonnage heavy-duty roller machine capacity and practical compaction.In order to expand the use of static effect of road roller, the general use of pressurized weight approach to adjust their operations Component and pressure line pressure. The weight of the roller can be water, sand, graphite powder, can also be cast iron blocks or cement blocks, etc. These heavy loads are not installed in the set of heavy pressure, if necessary, can be removed at any time. The weight distribution of the roller is mainly the distribution of the components between the front and rear wheels. With respect to single-wheel drive rollers, the larger drive wheel distribution component ensures that the roller meets the adhesion and braking torque, and the smaller steering wheel component can reduce the representation of the driven wheel, but the steering wheel The weight of the drive wheel of the single wheel of the light wheel should be 60% -70% of the machine. The distribution of the drive wheel is not as small as 40% or less, but it does not cause excessive occurrence of the driven wheel. Therefore, regardless of whether the smooth tire is a zebra tire, the distribution component of the drive wheel Should be controlled at 45% -50% is appropriate. On the full drive double drum series oscillatory roller, front and rear wheels are required to share the same weight. Tire-driven single-wheel oscillation circuit of the oscillation wheel distribution component can take 60% -65% of the machine to increase its pressure. In addition, the wheel should also occupy the appropriate share of the total weight of the roller.As the increase in the weight of the wheel can reduce the height of the machine center of gravity, but the roller when the road speed to accelerate the rotation inertia resistance also increased.
?The distribution of the quality of the oscillatory roller on and off
????The change in the quality of the oscillatory roller is affected by the amplitude A and the dynamic force F. In order to improve the effect of the vibratory roller on the ground, it is expected that the quality of the oscillating wheel will be too small in other conditions. However, the compaction effect of the oscillating roller is related to the momentum of the oscillation wheel in addition to the "F", and when the mass of the oscillation wheel is increased, the impact energy of the vibratory roller is added and compacted under the same amplitude condition It is expected that the quality of the oscillating wheel is too large, and when the mass of the oscillating roller is added, the oscillating wheel can be pressed against the soil by the weight of the frame, To create conditions, but the car overweight will oscillate the damping effect.Therefore, in the planning of the vibratory roller should be the two co-ordination, reasonable processing, the quality of the distribution of doubt.
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?The distribution of the quality of the oscillatory roller on and off
????The change in the quality of the oscillatory roller is affected by the amplitude A and the dynamic force F. In order to improve the effect of the vibratory roller on the ground, it is expected that the quality of the oscillating wheel will be too small in other conditions. However, the compaction effect of the oscillating roller is related to the momentum of the oscillation wheel in addition to the "F", and when the mass of the oscillation wheel is increased, the impact energy of the vibratory roller is added and compacted under the same amplitude condition It is expected that the quality of the oscillating wheel is too large, and when the mass of the oscillating roller is added, the oscillating wheel can be pressed against the soil by the weight of the frame, To create conditions, but the car overweight will oscillate the damping effect.Therefore, in the planning of the vibratory roller should be the two co-ordination, reasonable processing, the quality of the distribution of doubt.
asphalt repair cost in uk
examination and preparation before starting
tandem roller new design
stamped concrete asphalt cost