Vibrations and impact forces of modified handle pneumatic hammer

被引:0
作者
Majewski, Tadeusz [1 ,2 ]
Melo, Marco Meraz [1 ]
Tracz, Jan [2 ]
Ladyzynska-Kozdras, Edyta [2 ]
Estrada, Quirino [3 ]
机构
[1] Tecnol Nacl Mexico, Inst Tecnol Puebla, Ave Tecnol 420, Puebla 72220, Pue, Mexico
[2] Warsaw Univ Technol, Wydzial Mechatroniki, Ul Swietego Boboli 8, PL-02525 Warsaw, Poland
[3] Univ Autonoma Ciudad Juarez, Campus Ciudad Cuauhtemoc, Chihuahua, Mexico
关键词
vibrations; impact hammer; impact forces; handle vibrations; efficiency;
D O I
10.12913/22998624/197407
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The paper presents a dynamic model of a small electro-pneumatic percussive tool whose handle is elastically connected to the casing. The pneumatic force is defined as a function of the position of the piston and the striker. The Hertz model has been applied to the impact forces and given the conditions under which they exist. The differential equations define the movement of each part of the hammer. Their simulations show how the hammer parts vibrate, when the impacts occur, and how large the impact forces can be. The acceleration of the handle is determined and compared with the acceleration when the handle is part of the casing. The article proves that the hammer with a floating handle is better for the operator's protection.
引用
收藏
页码:341 / 349
页数:9
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