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      卸船機試車及驗收手冊——中譯英
      來源:北京新語絲翻譯公司  編輯:admin  發布日期:2013-05-16 08:38

          起升、開閉機構的空載調試必須在1.2、1.3和1.4款的檢查確認完好后,方可實施。把小車移動到門腿之間并固定起來(小車和地面之間無阻礙物)。把抓斗移動到小車下方(小車和抓斗之間無阻礙物)。檢查抓斗的開度是否符合設計要求。檢查抓斗各部分緊固和連接是否正常、可靠。檢查抓斗上的連接環,梨形頭裝置是否良好,有無異常。檢查確認重量傳感器型號和安裝符合設計的要求。啟動起升開閉的主電源,啟動控制電源。將電機和減速器脫開,讓變頻器完成自學習。設定變頻器參數,按額定電流的1~1.2倍整定熱繼電器和過流繼電器。通電調試起升開閉機構,先按4.1.3款低速運行10~20min重復試車,經檢查調整驅動機構及制動器等正常完好后,再按4.1.3款額定速度進行試車。在穿鋼絲繩前,啟動起升開閉機構作空載運行。檢查確認起升開閉機構運行平穩,無異常振動和發熱等現象。檢查確認起升、開閉電機運轉方向和同步的完好情況。檢查調整各制動器制動和同步的完好情況,調節制動器的制動力距。檢查確認驅動電動機,減速箱,軸承運轉處于完好狀態。檢查確認操縱手柄和升降動作的一致性。穿好鋼絲繩,連接上抓斗,啟動起升開閉機構作空載運行。檢查確認鋼絲繩的運行處于完好狀態。檢查抓斗閉合的緊密性滿足設計要求。檢查確認各傳動部件支座在運轉前、后連接均處于完好狀態。檢查調整限位開關,檢查并復核抓斗的起升高度、最大下降深度。測定電機轉速,并分別記錄電機的電流及轉速。檢查確認起升、開閉繩索的連接在運轉后處于完好狀態。操作司機室內操縱臺上的手柄,把抓斗提升到離地1m位置,進行抓斗開閉動作3~5次,然后把抓斗放到地面上。重復上述動作3~5次,對2.3.25~2.3.29的條款進行檢查確認。檢查確認手柄方向與開/閉斗、起升/下降的方向一致。檢查確認起升、開閉繩的補償行程是否同步。檢查確認抓斗開閉動作時活動自如,抓斗打開后檢查定位塊是否良好,可靠。檢查確認抓斗起升鏈條、C型環、楔套、滑輪是否可靠;在起升過程中是否有大的沖擊和異常。檢查并調整起升繩索的長度,保持抓斗的平衡。

          The No-load commissioning of lifting and opening/closing mechanism shall be started only after it has been verified that all items are in good conditions as per 1.2, 1.3 and 1.4. Move the trolley to the position between legs and fix it (no obstacles staying between trolley and ground). Move the grab below trolley (no obstacles staying between trolley and grab) Check the grab openness for its compliance with the design. Check whether the tightening and connection of grab are normal and reliable. Check the connecting ring on grab, and whether the pear-shaped connector is in good conditions. Check whether the weight sensor’s model and installation comply with the design. Start the main power supply for lifting and opening/closing, as well as the control power supply. Disconnect the motor and gearbox, and let the frequency converter to complete its self learning. Set the parameters of frequency converter, and calibrate the thermal relay and overcurrent relay at 1 - 1.2 times of the rated current. Power on the lifting and opening/closing mechanism for commissioning purpose; repeatedly test the mechanism at low speed for 10 - 20 minutes as per 4.1.3. When it is determined that the driving mechanism and brake are in good conditions after check and adjustment, test the mechanism at rated speed as per 4.1.3. Start up the lifting and opening/closing mechanism for No-load commissioning before the steel rope is installed. Check and verify that the lifting and opening/closing mechanism can run stably, free of vibration and abnormal heat. Check the running direction of lifting, opening/closing motor and verity that their synchronism is in good condition. Check and adjust the braking and all brakes and verify that their synchronism is in good condition, and adjust the braking torque of brake. Check and verify that the driving motor, gearbox and bearing are in good conditions. Check the consistency between operation handle and the lifting and descending action. Install the steel rope and connect the grab, and commence the No-load commissioning of lifting and opening/closing mechanism. Check and verify that the running of steel rope is in good conditions. Check whether the closeness of grab complies with the design. Check and verify that all connections of the driving part base are in good condition before and after the running. Check and adjust the limit switch, and check the lifting height and maximum lowering depth of the grab. Measure the motor speed, and record the current and speed of the motor. Check and verify that the connections of lifting and opening/closing ropes are in good conditions after the running. Operate the handle on control console inside operator’s cabin, and lift up the grab above ground for 1 m, open and close the grab respectively for 3 - 5 times; then lower down the grab. Repeat the foregoing action for 3 - 5 times, and check the items under 2.3.25~2.3.29. Check and verify that the handle direction is consistent with the direction of opening/closing, lifting/lowering. Check whether the compensating stroke of lifting, opening/closing rope is synchronous. Check and verify that the grab can be opened and closed flexibly; and check whether the locating block is in good conditions and reliable after the grab is opened. Check whether the lifting chain, C ring, wedge sleeve, and pulley of grab are in good conditions; Check whether large impact or abnormality exists during lifting process. Check and adjust the length of lifting rope, and maintain the balance of grab.

          ——新語絲北京翻譯公司資深譯員翻譯

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