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简述装载机噪音大怎么办
来源：/ 日期：2023-04-24
伴随着我国机械化进程的加快，大型机械化作业已经是整个重工业的标配，装载机被广泛应用于各大领域，如道路、建筑、矿山等，主要负责对沙土、石灰和矿石粉末等粉末状物料的挖掘和运输工作，搭配不同的辅助工作装备，甚可以进行推土、起重等工作，可谓是一台一起多用。
With the acceleration of China's mechanization process, large-scale mechanized operations have become the standard equipment for the entire heavy industry. Loaders are widely used in various fields, such as roads, buildings, mines, etc., mainly responsible for the excavation and transportation of powder materials such as sand, lime, and ore powder. With different auxiliary work equipment, they can even be used for soil pushing, lifting, and other work, which can be described as a multi-purpose machine.
但其实这么好的设备，也会存在一点问题，其在作业时会产生一定的噪音，随着技术的不断进步，噪音已经可以控制在合理范围内，但是有客户咨询我们说近期装载机变大，找不到原因，下面济南装载机租赁厂小编来为大家这个问题：
But in fact, such a good equipment may also have some problems. It produces a certain amount of noise during operation. With the continuous progress of technology, the noise can be controlled within a reasonable range. However, some customers have consulted us and said that the loader has become larger recently, and we cannot find the reason. Below, the editor of Jinan Loader Rental Factory will solve this problem for everyone:
要知道，噪音产生的原因主要来源于机械噪音：
It should be noted that the main source of noise is mechanical noise:
1、由于装载机柴油机上运动副很多，所以引起的机械激振力也很多，其中有活塞与气缸敲击产生的噪声，正时齿轮响声，燃油喷射系统噪声，配气机构噪声等。
1. Due to the many motion pairs on the diesel engine of the loader, there are also many mechanical excitation forces caused, including the noise generated by piston and cylinder knocking, timing gear noise, fuel injection system noise, and valve train noise.
2、在发动机中，曲轴、飞轮、皮带轮等转动部件中的任何一个都会形成振动力，由于这个振动力与部件的不平衡量成正比，与其每分钟转速的平方成正比，因此，当转速增加时，振动也被急剧放大，所以转动部件之间的平衡量小一些。
2. In an engine, any rotating component such as the crankshaft, flywheel, pulley, etc. forms a vibration force. As this vibration force is proportional to the imbalance of the component and the square of its speed per minute, as the speed increases, the vibration is also sharply amplified, resulting in a smaller balance between rotating components.
其它机械噪音来自发动机活塞、气门机构等，构成了发动机噪音的一部分，如活塞敲缸，挺杆噪音，气门开闭所产生的噪音，气门和气门弹簧振动所产生的噪音，以及正时链与链轮啮合时产生的噪音。
Other mechanical noise comes from the engine pistons, valve mechanisms, etc., which form a part of the engine noise, such as piston knocking, tappet noise, noise generated by valve opening and closing, noise generated by valve and valve spring vibration, and noise generated when the timing chain engages with the sprocket.
3、活塞敲缸是活塞侧面敲击缸壁所产生的噪音，当作用到活塞上的压缩压力转变为燃烧压力时，就产生了敲缸。活塞敲缸因活塞间隙的不同而不同，活塞间隙大时，有可能产生敲缸声。活塞敲缸的特点是发动机冷态时很响，因此时活塞间隙大，随着发动机的温升，声音也变小。
3. Piston knocking is the noise generated by the side of the piston striking the cylinder wall. When the compression pressure acting on the piston changes into combustion pressure, knocking occurs. The piston knocking on the cylinder varies depending on the piston clearance, and when the piston clearance is large, there may be a knocking sound. The characteristic of piston knocking on the cylinder is that the engine makes a loud noise when it is cold, because the piston clearance is large at this time, and as the engine temperature rises, the sound also decreases.
要减轻活塞敲缸，必须减少主侧压力，因此有些发动机将活塞销的中心与活塞中心线偏离一定距离，即可减少敲缸声。减少活塞敲缸的另一方法是在活塞裙部安装钢架，用以减少活塞裙部的热变形，从而可使用尺寸略大的活塞，将活塞间隙减小，使活塞敲缸声变小。
To reduce piston knocking, it is necessary to reduce the main side pressure. Therefore, some engines can reduce the knocking sound by deviating the center of the piston pin from the centerline of the piston by a certain distance. Another method to reduce piston knocking on the cylinder is to install a steel frame on the piston skirt to reduce thermal deformation of the piston skirt. This allows for the use of slightly larger pistons to reduce piston clearance and reduce the sound of piston knocking on the cylinder.
The above analysis of loader noise is believed to be helpful to you. If any abnormal machine noise is found, it should be dealt with in a timely manner. Starting from the above three points, the investigation should be carried out first. If it is still not resolved, you can call us for consultation We will provide you with technical support in all aspects!
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