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How does the roller crush him at low temperature? 2024-07-23 16:56:16 internet

As one of the construction machinery, the roller machine has now been widely used in various places.The safety operation of the roller is related to the safety of the lives and property of everyone.Next, I will introduce you to the operating regulations of the roller and the crushing skills of the roller.
Router crushing operation process
1. The road pressing machine should start before the operation. The internal combustion engine should be at the medium speed first, and then the high speed should be prepared.
2. When the transmission and the direction are changed, the speed of the internal combustion engine should be reduced during the transmission.
3. It is strictly forbidden to vibrate the road press on a solid ground.
4. When crushing the soft circuit base, first crushes 1 or 2 times in the case of non -vibration, and then vibrates.
5. When crushing, the frequency of vibration should be consistent.For adjustment of your vibration roller, you should first adjust the vibration frequency and then operate, and you must not adjust the vibration frequency without a shock.
6. The adjustment of the clutch, the shock clutch and the brake should be carried out after the main clutch is taken away.
7. When uphill, it is not allowed to use fast gears.When a sharp turn, when the hinge vibration roller is crushed in a small turn, the quick gear is strictly prohibited.
8. The roller must not bonuse the vibration when driving at a high speed.
9. When stopping, the vibration should be discontinued, and then the transition mechanism should be placed in the middle position. The transmission is placed in the vacant gear. Finally, the hand brake operating rod is pulled up. The internal combustion machine runs off for several minutes.
10. Other operation requirements shall comply with the provisions of the static pressure roller.
Router crushing skills
① Whether it is uphill or downhill, the bottom layer under the asphalt mixture must be cleaned and dry, and it must be sprayed with the asphalt binding layer to avoid the sliding of the mixture when crushing.
② Regardless of whether it is uphill or downhill, the driver wheel of the roller should be behind.Doing this has the following advantages: when uphill, the rear drive wheel can withstand the driving force provided by the slope and the machine itself. At the same time, the front wheels are preliminarily compacted on the road to withstand the larger shear force generated by the drive wheel.At the time of downhill, the impact force generated by the self -weight of the roller is offset by braking of the drive wheel. Only the mixing material after the front wheels can have the ability to generate the shear force after the support wheel.
③ When rolling uphill, the road pressing machine starts, stops, and accelerates smoothly to avoid excessive or too low speed.
④ Before the uphill is crushed, the mixture should be cooled to the specified low limit temperature, and then static pre -pressure should be performed. When the temperature of the mixture drops to the lower limit (120 ° C), the vibration pressure is used.
⑤ Suddenly changing and braking should be avoided.
⑥ When the slope is very steep, when the downhill crushing is performed, the lightway pressing machine should be used for pre -pressure first, and then the pressure is used to compact with a heavy road press or a vibration roller.
The low temperature effect
The low temperature makes it difficult for the engine to start. The main reason is that the viscosity of lubricating oil, decreased battery work ability, and poor fuel atomization.
The viscosity of the oil increases with the temperature decreases, and the flowing performance deteriorates, which makes the engine lubricating conditions bad, and the rotation resistance of the crankshaft increases.
At low temperature, the viscosity of the electrolyte is also increased, the penetration capacity decreases, and the internal resistance increases the capacity and end voltage of the battery significantly, and cannot even discharge.The reduction of voltage makes the motivation that does not get the required output power, and it is difficult to meet the requirements of startup speed.
Due to the low temperature of the engine starting, the speed of the engine starts is not high, the intake duct temperature and the gas flow rate are low, and the fuels atomization quality is poor, and it has further increased the difficulty of the engine.
Under low temperature conditions, the viscosity of various oils is large and poorly liquid, which brings difficulties to the operation of the roller, and exacerbate the wear of the machine.
The lubricating oil has a large viscosity, and the loss of oil stirring power during operation has increased, which reduces the power of the engine and the efficiency of the transmission system is low, thereby reducing the driving capacity of the roller walking and the excitement mechanism.
The poor liquidity of lubricating oil has increased difficulty to the lubrication of certain parts, reduced the lubrication effect, thereby exacerbating the wear of the engine and transmission parts.
The large viscosity of working oil has also increased the resistance of the pipeline, which makes hydraulic steering difficulty. The efficiency of hydraulic driving brakes is poor, which increases difficulties to driving, and has an adverse effect on safe driving.
There are still common frozen hazards in the cold season, such as: electrolyte frozen in batteries will cause it to terminate the work; the cooling water of the water -cooled engine will freeze the scatter and the cylinder body.

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