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工程机械发动机的减振方法

日期:2018-04-17   来源:/
加长臂挖掘机是机械工程的主要工作工具。发动机振动的传播直接影响到工程机械的整机可靠性和使用寿命,同时也使司机的乘坐舒适性变差,降低工作效率,必须采取一些有效方法来减少振动。
The long arm excavator is the main working tool of mechanical engineering. The transmission of engine vibration directly affects the reliability and service life of the whole machine. At the same time, the driver's ride comfort is worse and the working efficiency is reduced. Some effective methods must be taken to reduce the vibration.
一、振源控制振源控制贯穿于设计、制造乃至使用的全过程,体现在诸如改善发动机平衡性能、动力学性能、零部件的加工与装配精度等。发动机在工作中产生振动的形式是多样的,主要原因有:发动机重心周期性移动,往复运动件沿气缸上下作用的惯性力,所有旋转运动件的离心惯性力,气体压力交替作用引起曲轴回转周期变化等。
First, the vibration source control is through the whole process of design, manufacture and even use, which is reflected in the improvement of the engine balance performance, the dynamic performance, the machining and assembly precision of the parts. There are various forms of engine vibration in the work. The main reasons are: the periodic movement of the engine center of gravity, the inertia force acting along the cylinder up and down, all the centrifugal inertia forces of the rotating parts, and the rotation of the crankshaft by the alternating action of the gas pressure.
二、振动的隔离橡胶隔振传统的发动机采用弹性支承降低振动,隔振装置结构简单,成本低,性能可靠。橡胶支承一般安装在车架上,根据受力情况分为压缩型、剪切型和压缩剪切复合型等。压缩型结构简单,制造容易,应用广泛且由于自振频率较高,一般限于垂直方向上使用。
Two, vibration isolation rubber isolation, the traditional engine adopts elastic support to reduce vibration, and the isolation device has the advantages of simple structure, low cost and reliable performance. Rubber bearings are usually installed on the frame. According to the force, they are divided into compression type, shear type and compression shear type. The compression structure is simple, easy to manufacture, widely applied, and is usually limited to vertical direction because of its high natural frequency.
本文由加长臂挖掘机友情奉献,更多有关的知识请点击:我们将用最先进的技术,最真诚的态度,为您提供最为全面的服务。我们将会陆续向大家奉献,敬请期待。
This article is provided by the long arm excavator, more related knowledge, please click: we will use the most advanced technology, the most sincere attitude, to provide you with the most comprehensive service. We will continue to dedicate to you. Please look forward to it.

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