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如何預防螺桿式啟閉機的頂閘事故方法

WANGZHI:wmzl5.com   2019-09-05  ZUOZHE:admin    YUEDU:

如何預防螺桿式啟閉機的頂閘事故方法
How to Prevent the Accident of Top Brake of Screw Hoist
如果閘門正好處在關閉位置即閘板下緣已接觸閘底,螺桿上的吊頭螺栓處于長橢圓螺孔下部,行程開關仍處在初始狀態,此時開閘,即使方向搞反(含電源相序變動)也不會引發事故,因閘門不動,螺桿仍能下降觸動行程開關動作,發出報警信號提醒操作人員終止誤操作或改變操作方向,屬電動啟閉的并能自動停機。當發出報警信號和自動停機的,如操作人員不立即糾正錯誤操作(手動必須立即糾正)或排除障礙使保護系統復位,報警器將邊續不斷地發出警報,屬電動啟閉的如不排除故障使行程開關復位將無法重復啟閉,從而可有效地防止頂閘事故的發生。
If the gate is in the closing position, that is, the lower edge of the gate has touched the bottom of the gate, the suspender bolt on the screw is in the lower part of the long elliptical screw hole, and the stroke switch is still in the initial state, when the gate is opened, even if the direction is reversed (including the phase sequence change of the power supply), the accident will not occur, because the gate is not moved, the screw can still drop the trigger stroke switch. Actions, alarm signals to remind operators to stop misoperation or change the direction of operation, is an electric start-up and shut down automatically. When alarm signals and automatic shutdown are sent out, if the operator does not immediately correct the wrong operation (manual must be corrected immediately) or remove obstacles to reset the protective system, the alarm will continuously send out alarms. If the fault is not eliminated, the reset of the trip switch will not be able to repeat the start and close, so it can be effectively prevented. Accident of stop brake.
無閉門力淹沒式閘門啟閉保護措施此類閘門長期淹沒水中,螺桿吊孔仍由圓形改為長橢圓形,但行程開關的位置需要安裝在最高水位之上,故需將擋塊改為傳力桿,傳力桿一端焊在閘門吊座上,傳力桿與螺桿平行并用圓環與螺桿聯接,使傳力桿能在圓環內上下移動,傳力桿的長度應滿足伸出最高水除加強操作人員的工作責任心教育和技能培訓,要求操作人員按啟閉程序操作外,關鍵是要從技術措施上予以改進,杜絕頂閘事故的發生。
Protection measures for opening and closing of submerged gate without closed door force This kind of gate has been submerged for a long time, the screw hanger hole is still changed from round to long ellipse, but the position of the stroke switch needs to be installed above the highest water level, so the block should be changed into a force transfer rod, one end of the force transfer rod is welded on the gate hanger, and the force transfer rod is parallel to the screw with a ring and screw. The pole connection enables the transmission pole to move up and down in the ring. The length of the transmission pole should meet the maximum water extension. Besides strengthening the education of the operator's sense of responsibility and skill training, and requiring the operator to operate according to the opening and closing procedure, the key is to improve the technical measures to prevent the occurrence of the top gate accident.

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