【文章內容簡介】 first implementation of ponents numbered 0, the control ponents associated with the identifier is 1. Out with the implementation of ponents corresponding to the identifier for 4 the even ponents, then retracting and implementation of ponents corresponding to the identifier for the odd ponents. Hydraulic circuit carried out not only to deal with numbers, but also to deal with the actual device ID, in order to detect system failures. 根據系統(tǒng)工作原理，您可對所有回路依次進行編號。如果第一個執(zhí)行元件編號為 0，則與其相關的控制元件標識符則為 1。如果與執(zhí)行元件伸出相對應的元件標識符為偶數，則與執(zhí)行元件回縮相對應的元件標識符則為奇數。 不僅應對液壓回路進行編號，也應對實際設備進行編號，以便發(fā)現(xiàn)系統(tǒng)故障。 DIN ISO12192 standard definition of the number of ponent position, which includes the following four parts: device ID, circuit ID, ponent ID and ponent ID. The entire system if only one device, device number may be omitted. DIN ISO12192 標準定義了元件的編號組成，其包括下面四個部分：設備編號、回路編號、元件標識符和元件編號。如果整個系統(tǒng)僅有一種設備，則可省略設備編號。 Practice, another way is to code all of the hydraulic system ponents for numbers at this time, ponents and ponent code should be consistent with the list of numbers. This method is particularly applicable to plex hydraulic control system, each control loop are the corresponding number with the system 實際中，另一種編號方式就是對液壓系統(tǒng)中所有元件進行連續(xù)編號，此時，元件編號應該與元件列表中編號相一致。 這種方法特別適用于復雜液壓控制系統(tǒng)，每個控制回路都與其系統(tǒng)編號相對應 With mechanical transmission, electrical transmission pared to the hydraulic drive has the following advantages: 與機械傳動、電氣傳動相比，液壓傳動具有以下優(yōu)點： 1, a variety of hydraulic ponents, can easily and flexibly to layout. 液壓傳動的各種元件，可以根據需要方便、靈活地來布置。 2, light weight, small size, small inertia, fast response. 重量輕、體積小、運動慣性小、反應速度快。 3, to facilitate manipulation of control, enabling a wide range of stepless speed regulation (speed range of 2021:1). 操縱控制方便，可實現(xiàn)大范圍的無級調速（調速范圍達 2021： 1）。 4, to achieve overload protection automatically. 可自動實現(xiàn)過載保護 。 5, the general use of mineral oil as a working medium, the relative motion can be selflubricating surface, long service life。 一般采用礦物油作為工作介質，相對運動面可自行潤滑，使用壽命長； 6, it is easy to achieve linear motion / 很容易實現(xiàn)直線運動 / 7, it is easy to achieve the automation of machines, when the joint control of the use of electrohydraulic, not only can achieve a higher degree of process automation, and remote control can be achieved。 很容易實現(xiàn)機器的自動化，當采用電液聯(lián)合控制后，不僅可實現(xiàn)更高程度的自動控制過程，而且可以實現(xiàn)遙控 。 5 The shortings of the hydraulic system: 液壓系統(tǒng)的缺點： 1, as a result of the resistance to fluid flow and leakage of the larger, so less efficient. If not handled properly, leakage is not only contaminated sites, but also may cause fire and explosion. 由于流體流動的阻力和泄露較大，所以效率較低。如果處理不當，泄露不僅污染場地，而且還可能引起火災和爆炸事故。 2, vulnerable performance as a result of the impact of temperature change, it would be inappropriate in the high or low temperature conditions. 由于工作性能易受到溫度變化的影響，因此不宜在很高或很低的溫度條件下工作。 3, the manufacture of precision hydraulic ponents require a higher, more expensive and hence the price. 液壓元件的制造精度要求較高，因而價格較貴。 4, due to the leakage of liquid medium and the pressibility and can not be strictly the transmission ratio. 由于液體介質的泄露及可壓縮性影響，不能得到嚴格的傳動比。 5, hydraulic transmission is not easy to find out the reasons for failure。 the use and maintenance requirements for a higher level of technology. 液壓傳動出故障時不易找出原因；使用和維修要求有較高的技術水平。 In the hydraulic system and its system, the sealing device to prevent leakage of the work of media within and outside the dust and the intrusion of foreign bodies. Seals played the role of ponents, namely seals. Medium will result in leakage of waste, pollution and environmental machinery and even give rise to malfunctioning machinery and equipment for personal accident. Leakage within the hydraulic system will cause a sharp drop in volumetric efficiency, amounting to less than the required pressure, can not even work. Microinvasive system of dust particles