挖掘工作裝置設(shè)計外文翻譯-其他專業(yè)-資料下載頁
2025-01-19 11:43本頁面
【導(dǎo)讀】產(chǎn)，關(guān)閉，填海工程，并在不列顛哥倫比亞州的煤礦標(biāo)題應(yīng)用。關(guān)的GPS應(yīng)用提供服務(wù)的顧問。目前，GPS已成為在卡車調(diào)度系統(tǒng)和實地測量的標(biāo)準(zhǔn)組件。與差分GPS車載設(shè)備相比，可以迅速確定一個給定精度小于一米的卡車。傾銷的任務(wù)有關(guān)的致命交通意外發(fā)生。準(zhǔn)確地找到煤剝離操作的矮墻面糊線，從而減少overdig，或失去煤。如加載爆炸地區(qū)或危險區(qū)域，準(zhǔn)確地表述舊地下運作。安裝GPS指導(dǎo)的挖掘機挖的搬到12坑錢的表土。達320萬立方米,顯示平均%的overdig和%的underdig。以支付系統(tǒng)在幾個月。可以定位在50毫米一桶一鏟或一個推土機的刀片。位;生產(chǎn)力的實時監(jiān)控;詳細的事故后的安全分析;和跟蹤每件裝備的變動。它有15個容量范圍從8到14立方米，85噸容量的。50輛卡車和30輛卡車120噸的卡車挖掘機的車隊。OITDS系統(tǒng)涵蓋整個挖掘機。計，提供高效的材料為最佳運動GPS操作指導(dǎo)到哪里移動的物質(zhì)和推多遠。挖掘設(shè)備，從鉆井產(chǎn)生的信息，可以登錄到GPS系統(tǒng)。低的寶貴礦產(chǎn)稀釋，并增加操作者的信心。
【正文】 gysaving, high efficiency and lifelong significant advantages to really develop in Europe in the 1980s, widely used in modern construction machinery. load sensing system is a pressure poor feedback, closedloop system in the flow of instruction under the conditions of pump load pressure servo control load sensing system according to the type of control can be divided into a pump controlled load sensing system and the valveregulated load sensing system。 feedback control signal types can be divided into hydraulic The mechanical load sensing systems and electrohydraulic load sensing system。 bit in the system39。s main control valve function type can be divided into opencenter load sensing system (opened center load sensing system, OLSS) and closed center load sensing system (closed center the load sensing system, CLSS), the median function (open, closed) resulted in a different form of the load sensing control system. diversion control methods and more sensitive system to perform a Load 16 J include: (1) based on the priority pressure pensated shunt control The concept of priority pressure pensated in 1969 by J. D. The A11, ell, the specific method is still to achieve a maximum speed of the actuator (such as hydraulic power steering, etc.): For the case even in the prime mover speed is very low or loads, in order to ensure that its flow to it than the high priority, and allows each actuator in the pump displacement is insufficient according to the priority from low to high order to reduce the speed. Such a priority pressure pensated the role of valve, called the priority valve. Composite operating system with priority pressure pensated, it is possible to produce a low priority execution to stop working. In order to lower priority execution does not stop even in the case of a serious foot pump output flow movement, and sometimes need to weaken the priority of this pressure pensation. This pressure differential pressure across the variable orifice pensation. (2) pensation based on the split ratio adjustable pressure shunt method In some machinery like hydraulic excavators need to make each actuator speed to maintain a certain ratio to ensure that the coordinated action of all actuators, can not be in the actuator attach priority. The output flow of the operation of the valve when the pump output flow is insufficient must be decreased proportionally, that is, to maintain the ratio between the operation amount of the operating valve (split ratio) unchanged. The orifice at both ends of the differential pressure setpoint does not require a fixed value, while only need to be equal to the pressure pensation, known as to shunt adjustable pressure pensation. 撤消修改 【 1 9】 Lee S U， Chang P H． Control of a heavy— duty robotic excavator using time delay Control with integral sliding surface[J】． Control Engineering Practice， 2021， 10： 697 71 1． 【 20】 Sung— Keun Kim， Jeffery S． Russell． Framework for an intelligent 43．
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