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    • 9. 发明授权
    • Actuator providing guided linear displacement
    • 执行器提供引导线性位移
    • US4796516A
    • 1989-01-10
    • US944752
    • 1986-12-22
    • Gabor Horvath
    • Gabor Horvath
    • F15B15/02F15B15/08
    • F15B15/02Y10S92/01
    • An improved linear guiding mechanism with a standing part and a moving part which have respective uniform cross sections. A pair of spaced guiding channels is formed between these parts and respective linear ball bearings are arranged in both channels that interconnect the two parts. The channel walls are abutting the balls via steel bars extending along the channels. Preferably the standing part defines a cylinder in which a piston is moved and its shaft is connected to the moving part. The parts are made of light and soft material such as aluminum or plastic and manufactured by extrusion technique. The rather high variation of dimensions of such parts are compensated by means of biasing forces that press the channels together, and the biasing forces are sufficiently high to resist operational load. The length of the ball bearings is at least the half of the maximum stroke.
    • 一种具有立体部分和移动部分的改进的线性引导机构,其具有相应的均匀横截面。 在这些部件之间形成一对间隔开的引导通道,并且在两个通道中布置相应的直线球轴承,这两个通道互连两部分。 通道壁通过沿通道延伸的钢筋抵靠球。 优选地,竖立部分限定了一个气缸,其中活塞被移动并且其轴连接到移动部件。 这些部件由轻质和软质材料制成,如铝或塑料,并通过挤出技术制造。 通过将通道压在一起的偏置力补偿这些部件的相当高的尺寸变化,并且偏置力足够高以抵抗操作负载。 球轴承的长度至少为最大行程的一半。