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公开(公告)号:US4198178A
公开(公告)日:1980-04-15
申请号:US919467
申请日:1978-06-27
申请人: Per Carlstrom , Bo Lundberg , Gert Persson
发明人: Per Carlstrom , Bo Lundberg , Gert Persson
CPC分类号: E04F21/248
摘要: A concrete floor finisher for finishing newly-placed concrete. The machine comprises a rotor hub, a plurality of rotor arms on the hub for rotation about an axis, a blade pivotable on each arm, and a motor for driving the rotor hub. The pitch of the blades is adjustable depending upon the condition of the wet concrete, by a piston and cylinder centrally located about the axis of rotation of the rotor, and a stud connected at one end to the blades and at its other end engaging a portion of the piston to adjust the pitch of the blades in response to the axial displacement of the piston.
摘要翻译: 用于整理新配混凝土的混凝土地板整理机。 该机器包括转子毂,毂上的多个转子臂,用于围绕轴线旋转,可在每个臂上枢转的叶片以及用于驱动转子毂的马达。 叶片的间距可根据湿混凝土的状况来调整,活塞和圆柱体围绕转子的旋转轴线居中定位,并且在一端连接到叶片并且在其另一端与一部分接合的部分 的活塞,以响应于活塞的轴向位移来调节叶片的桨距。