手持式振捣器振动传递与减振效果试验研究

手持式振捣器普遍用于水电工程施工中边角及钢筋等复杂部位处的混凝土捣实,由于振捣器是利用振动工作,其振动不仅通过手柄传递给操作者,而且还通过空气以噪声形式影响操作者,使操作者身体受到损害,因此需要研制一种新型低振辐射的振捣器.基于设计的振捣器试验台,测量手持式振捣器振动加速度沿振捣器的传递情况,分析减振效果,在试验数据分析基础上,提出减振的有效途径,为振捣器低振辐射设计提供依据.

Testing Research on Vibration Transfer and Absorption Effect of Hand Vibrator

Hand vibrator is widely used to tamp concrete in some complex areas of the corner or the border in hydroelectric construction engineering. For vibrator exploits vibration,the vibration is transferred to the operator not only by the handle,but also by noise.That makes the operator health harmed. So new type of vibrator with low vibration radiation is needed to develop.Thus a new type vibrator is developed based on a testing rig designed.The vibration accelerations along the whole vibrator are measured and analyzed referring to the criterion.The vibration absorption effects of the two absorbers in the vibrator are also estimated.Finally based on these testing data,the effective methods of reducing vibration are presented to improve the design of the vibrator.