The structure and design of dual vibration press of the hand

 Portable internal combustion rock drill is a kind of gasoline engine, compressor and drill the trinity of drilling and drilling machines, energy independence, portable and flexible characteristics, widely used in stone mining, road construction, military engineering and irrigation and water conservancy construction.

When impact drill, but it produces vibration, not only to the operator's fingers, wrists and joint damage, and will spread to the heart. So the vibration of portable internal combustion rock drill is one of the most intense problem has always been a user response. Design personnel has carried on the structure to its improvement, from a metal handle to add damping rubber hand set, to the hollow damping rubber handle, it has curtained vibration reduction effect, but the effect is not obvious. In this paper, a manipulator with double damping functions.

1.     Structure

The knob picture 1

1.     Working principle

2.     The operator put the double damping rubber hand refers to the set as a kind of vibration reduction, on the basis of increased torsional spring pieces of rubber for vibration reduction.

Rubber torsional spring has high internal resistance, it can absorb all of a sudden shock and high frequency vibration function. When the vibration of the drill put on the rubber torsional spring to shift, driven in handlers to certain Angle, absorbing and consume a part of the vibration wave. Hand a long on both sides of the circular arc groove for operator take the rotational Angle limit, to ensure that the operator can impose certain axial thrust on rock drill

3.     The determination of hardness

The hardness of the rubber torsional spring to select suitable, does not too soft on the effect of vibration reduction, too hard rubber body easy craze, life is short, after tested, recommend thehardness HS60-65

     The vibration reduction handle has simple structure, reliable performance, the vibration reduction effect is obvious, effectively protect the operator's physical and mental health .