| 摘要 |
PURPOSE:To prevent the occurrence of residual air bubbles so as to facilitate oil injection by providing a driving means allowing a oil injection head equipped with an air exhausting device and a check valve to easily advance to and retract from an absorber-ass'y and installing a supporting base of the absorber-ass' y. CONSTITUTION:An absorber-ass'y 12 is supported on a clamp base 4 mounted to a column 1, and an oil injection head 8 is advanced and retracted by a cylinder 5 installed on a cylinder base 3 on the top of the column so that its shaft center is aligned with the shaft center of the absorber-ass'y 12. An air exhausting port 19 and a check valve 21 connected to a vacuum pump 18 are provided near the oil injection head 8. Thus, the oil injecting operation can be performed under the condition where the absorber-ass'y 12 is supported on the clamp base. The air in the absorber-ass'y 12 is evacuated by an air exhausting device, so that there is no obstruction to oil injection, and the occurrence of inside residual air bubbles can be prevented. |
