Recently，Sanyi Road Machinery Meets China's Off-road Mobile Machinery“Guo Si”Emission standardsC10 Products——TrinitySPR300C-10HTyre roller，Successfully selected《Directory of low-noise construction equipment（The first batch）》，It marks that Sanyi Road Machinery Equipment relies on green and low noise.、The characteristics of energy conservation and environmental protection have been authoritatively affirmed in the field of noise pollution prevention and control.。
In recent years，As the problem of noise pollution has become increasingly prominent.、The public's growing concern about noise，China is accelerating its efforts to prevent and control pollution in the field of noise.。“Identification of low-noise construction equipment”Jointly sponsored by the Ministry of Industry and Information Technology and the Ministry of Ecology and Environment，Designed to reduce noise pollution from construction equipment，Speed up the development and application of low-noise construction equipment，Guide the technical progress of construction equipment，Promoting high-quality development of construction equipment industry。
Selected this time《Directory of low-noise construction equipment（The first batch）》TrinitySPR300C-10HTyre roller，YesCThe masterpiece of 10 series tire roller，Through the optimization and design of each system of the equipment，The noise intensity generated by each system during the operation of the Road Roller is greatly reduced.，Uch as optimization of damping mechanism of Road Roller、Power system layout optimization、Fan optimization and matching optimization of hydraulic control system，Effectively improve compaction efficiency while reducing noise pollution。
Optimization design of cab，Increase sound insulation measures
Cab sound insulation and noise reduction，It is mainly based on the isolation of the noise transmission path.。SPR300C-10HThe pneumatic tyred roller uses a large amount of sound-absorbing material in the cab.、A silencing structure is designed between the interior trim and the cab frame.，It can effectively control the secondary propagation of noise.，Prevent the reverberation of noise caused by the collision and reflection of sound with the inner wall of the cab in the process of transmission。
Through the use of an integrated cab，Do a good job of sealing in the cab.，So that that effect of vibration reduction and noise reduction are achieved，At the same time，Seal the cab in many ways，Steel plate is used、Hemp felt、Sealing the floor with inner coating and other materials；Cab door、The windows and panels are sealed with rubber，Reduce external noise ingress。The above measures can effectively isolate the noise generated during the operation of the Road Roller during the construction process.，So that that dynamic noise beside the drive's ear can meet the national standard“GB/T25615 2010”Request。
Matching optimization dynamic system，Reduce the engine speed
The operation of the engine is often accompanied by loud noise.，It is also one of the main noise sources of road roller.。Prevention and Control of Engine Noise，It has become one of the most important noise reduction measures for road rollers.。
SPR300C-10HNew-type low-noise engine of Shanghai Diesel Engine Co., Ltd. is selected as the tire roller.，By optimizing the hood、Arrangement in the nacelle to improve the cooling air duct，Reduce the noise caused by air flow turbulence in the cabin；Optimize the diameter and shape of the intake and exhaust pipes，Reduce the noise generated by the intake and exhaust system during the operation of the engine，Add sound insulation around the cabin，Minimize outward transmission of power system noise。
In addition，Through the adoption of SANY's self-developedTPATechnology，It can ensure that the customer is under normal construction conditions.，Noise near the driver's ear is less than 79dB(A)，External radiation noise 100dB(A)，At the same time, fuel consumption is greatly reduced.。
Optimize the blade shape of the fan，Reduces fan noise
The noise generated by the cooling fan is mainly composed of rotation noise and airflow noise.，According to the spectral characteristics of noise sources、Generation mechanism and working condition，Carry out noise prevention measures for cooling system。
The blade angle is one of the important factors affecting the spectral composition of fan noise.。Reasonable arrangement of blade included angle，It can reduce the prominent frequency components in the fan noise.,Smoothing the spectrum of the noise,But also can ensure the aerodynamic performance of the fan.。
At the same time，Reasonable design of cooling fan、Relative position relationship between the radiator and the air protection ring，On the premise of ensuring the cooling performance,，Reduce the fan speed，At the same time, the fan noise is also reduced.。
In response to the new era of green low-carbon、Development Opportunities for Energy Conservation and Environmental Protection，Sany has been committed to the development and application of low-noise construction equipment.，Constantly bring forth new ideas。To be included in the list of guidanceSPR300C-10HSanyi road equipment represented by tire roller“Guo Si”C10 series technology is mature、And that construction is efficient、Green and safe、Stable and reliable，Escort the rapid realization of industry customer value。
The mission of the new journey is arduous.，The new goal is inspiring.。Construction machinery is the core of national capital construction.，Is now in the country.“Fourteen five”Planning and“Double Carbon”Full sprint stage of strategic objectives，Sany is the leading enterprise in the construction machinery industry.，Be sure not to forget the original aspiration、Remember the mission，Overcome difficulties、Keep improving，Continue to climb the technological peak，Achieve energy conservation and emission reduction、Green traffic、Environmental Protection Road Construction, Green and High Quality Development，Boost“Double Carbon”Goal achieved。
