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    • 2. 发明申请
    • Damping Device For A Percussion Device, Percussion Device And Rock Drilling Machine
    • 冲击装置,冲击装置和岩石钻孔机的阻尼装置
    • US20160318167A1
    • 2016-11-03
    • US15103968
    • 2015-01-16
    • ATLAS COPCO ROCK DRILLS AB
    • Maria Pettersson
    • B25D17/24E21B7/02E21B1/02
    • B25D17/245B25D9/12E21B1/02E21B7/025
    • Damping device for a percussion device of a hydraulic rock drilling machine (1) with a striking direction (R), including a damping piston (5) for action in an axial direction against a tool, wherein the damping piston (5) exhibits a first piston portion (6), which is received in a first damping chamber (7) and a second piston portion (8), which is received in a second damping chamber (9). In operation, in a normal striking position of said percussion device, the damping piston (5) is set against a fixed stop (19) against movements in the striking direction. A damping slot (10) is established between the first (7) and the second (9) damping chamber in all axial positions of the damping pistons, and the first damping chamber (7) is pressurized with a hydraulic pressure. The invention also concerns a percussion device and a rock drilling machine.
    • 一种用于具有撞击方向(R)的液压凿岩机(1)的冲击装置的阻尼装置,包括用于沿着轴向方向作用于工具的阻尼活塞(5),其中所述阻尼活塞(5)呈现第一 活塞部分(6),其被容纳在第一阻尼室(7)和第二活塞部分(8)中,所述第一阻尼室(7)和第二活塞部分(8)被容纳在第二阻尼室(9)中。 在操作中,在所述冲击装置的正常打击位置,阻尼活塞(5)抵抗固定止动件(19)设置成抵抗撞击方向的运动。 在阻尼活塞的所有轴向位置处,在第一阻尼室(7)和第二阻尼室(9)之间建立阻尼槽(10),并且第一阻尼室(7)用液压加压。 本发明还涉及一种打击乐器和一种凿岩机。