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    • 4. 发明授权
    • Pneumatic impact mechanism
    • 气动冲击机构
    • US4160486A
    • 1979-07-10
    • US789864
    • 1977-04-22
    • Alexandr D. KostylevBoris N. SmolyanitskyVladimir P. BoginskyKonstantin S. GurkovVladimir V. Klimashko
    • Alexandr D. KostylevBoris N. SmolyanitskyVladimir P. BoginskyKonstantin S. GurkovVladimir V. Klimashko
    • E02D7/10B25C1/04B25D9/08B25D17/00E02D7/02E21B1/00H01R4/66
    • B25D17/00B25C1/041B25D9/08H01R4/66
    • A pneumatic impact mechanism for driving rod-like members having a hollow cylindrical casing with a tail portion and a front end portion. The casing accommodates a reciprocating stepped hammer piston defining in the casing, on the tail portion side, a variable volume rear end work chamber in permanent communication with a source of compressed air. The stepped hammer piston defines, on the side of the front end portion, a variable volume front end work chamber.The stepped hammer piston has a through-passing axial bore, and its small-diameter portion cooperates with the tail portion of the casing and has radial passages. There is provided a tubular guide member or element for receiving the rod-like member arranged coaxially with the stepped hammer piston and casing and secured to the tail portion and to the front end portion of the casing in such a manner as to cooperate with the stepped hammer piston and define therewith, with the outer periphery thereof an axial passage. A clamp for engaging the individual rod-like members is rigidly removably secured to the front end portion of the casing. The front end-work chamber communicates, at regular intervals, with atmosphere through the axial passage and radial bores when the stepped hammer piston is in its rear end position and with the rear end work chamber when the stepped hammer piston is in the front end position to deliver blows to the casing under the action of compressed air fed to the work chambers.
    • 一种用于驱动具有中空圆柱形壳体的杆状构件的气动冲击机构,其具有尾部和前端部。 外壳容纳往复式阶梯式锤式活塞,该活塞在壳体中在尾部侧限定可变容积的后端工作室,其与压缩空气源永久连通。 阶梯式锤式活塞在前端部分的侧面上限定了可变容积的前端工作室。