| 摘要 |
PURPOSE:To reduce transmission of vibration to a base by mounting a compressor horizontally on the base through a vibration preventing unit and further an additional inertial body on a horizontal line passing through the neighborhood of the center of gravity of the compressor through a buffer body. CONSTITUTION:For example, a cylindrical buffer rubber as a buffer body 3 having about 3kg/mm. and about 1Kg/mm. of spring constant respectively in the longitudinal and lateral directions and other cylindrical buffer rubber as buffer bodies 6, 7 having 110kgm/rad of spring constant in the twisting direction are used for a compressor having about 15kg of weight. Further, additional inertial bodies 8, 9 are mounted on ends of the buffer bodies 6, 7 through steel materials having 100mm. of outer diameter to set the respective thickness of said interal bodies to about 65mm. and 14mm.. Thus, the transmission rate of rotational vibration torque to a base plate 2 in the longitudinal direction of a compressor 1 is remakably attenuated as shown by the broken line compared with prior examples in the frequency region of about 46-56Hz of power frequency and 90- 122Hz of the secondary harmonic frequency. |
