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以往,作为手持式钻孔工具,有机动钻、机动锤、凿岩机、电动锤钻等。其中,机动钻只能进行旋转钻孔,机动锤只能通过冲击进行凿孔,每种工具只具备一种动作功能,因此,钻孔能力极低,使用范围也受到限制。凿岩机虽具有旋转和冲击两种功能,但它是通过活塞的往返运动使冲击作业和旋转作业交替进行的。在冲击时,旋转动作停止。旋转时,冲击动作停止。冲击和旋转动作具有一定的输出比率,不能根据需要分别调整冲击能和扭矩(使冲击能变小,扭矩增大。或者使冲击能增大,扭矩变小)。只能通过调整压缩空气的供气量控制冲击和旋转功能。为了弥补上述缺点,就要根据不同的
In the past, as a hand-held drilling tools, drilling machines, hammers, rock drills, electric hammer drill. Among them, the mobile drilling can only be rotary drilling, hammer can only be punched by the impact of each tool has only one action function, therefore, very low drilling capacity, the use of the range is also limited. Although rock drill has both rotation and impact functions, but it is through the reciprocating motion of the piston so that the impact of operations and rotating operations alternately. In the impact, the rotation stops. When rotating, the impact action stops. Impact and rotation movements have a certain output ratio, can not be adjusted according to the needs of the impact energy and torque (so that the impact energy becomes smaller, the torque increases, or the impact energy increases, the torque becomes smaller). Only by adjusting the amount of compressed air supply to control the impact and rotation functions. In order to make up for the above shortcomings, it is necessary to be different