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液压机>>行业动态
工程机械设备的故障特点呈现多样性
发布者:admin  日期:2016-06-02  点击:2137

  (1)油压机工程机械使用初期阶段的故障特点。工程机械在使用初期(相当于走合期)其故障是由高到低(降曲线),使用初期故障率高低是随制造或维修质量和走合时期的使用有关.如果工程机械制造或修理质量高,并能正确地使用与维护。那么,初期故障率就低。否则早期故障率会高。早期故障多地是联接螺栓松动或松脱;管道接头松动或松脱:残留金属屑或铸造砂易堵塞油道或夹在相对运动摩擦中拉伤机件(如液压系统中的执行机构油缸)造成漏油,调整后的间隙或压力发生变化,使机件不能执行规定能力,有些接合因螺栓不紧而漏水、漏油、漏气等。

(1) the failurecharacteristics of the initial stage of the construction machinery of the frametype hydraulic press www.yxpic.com. Mechanical engineering in use early (equivalent to takethe time) the fault is from high to low (lower curve), using the initial faultrate is high or low is with manufacturing or maintenance quality and take theperiod of use related. If mechanical engineering manufacturing or repairing thehigh quality and proper use and maintenance. So, the initial failure rate islow. Otherwise the early failure rate will be high. Early fault much isconnecting bolt looseness or loose; pipe fittings loose or loose: easy to blockthe oil channel or clip in the relative motion of the friction in the injuryparts (such as hydraulic system actuator cylinder) oil spill caused by metalshavings or casting sand residue, after adjusting the gap or pressure change,parts can not ability to implement provisions, some joint because of the boltis not tight and water leakage, oil spills, leakage and so on.

 

  (2)油压机工程机械正常使用阶段的故障特点。工程机械走合期结束后,进人正常使用阶段。工程机械在这个阶段内运行,只要按规定维护和正确使用,一般不会发生故障,即便发生故障,也是随机性的故障(这种故障具有隐蔽性,维护或检查中不易发现),所以故障率很低,曲线平缓微升。如果工程机械在正常使用期内发生故障,多属偶然性的或因使用、维护不当所致。

(2) the failurecharacteristics of the normal use stage of the frame type hydraulic machineconstruction machinery. Construction machinery after the end of the close, intothe normal use of the stage. Construction machinery in this stage operation, aslong as the required maintenance and proper use, generally will not fail, evenin the event of failure, and random fault (the fault has a hidden, maintenanceor inspection is not easy to find), and the failure rate is very low, flatcurve edged up. If the construction machinery in the normal use of the periodof failure, more casual or due to improper use, improper maintenance.

 

  (3)框架式油压机工程机械使用接近大修期阶段的故障特点。当工程机械使用接近大修期时,各部件损耗增大.技术状况恶化。这个阶段的故障特点是故障率高.而且普遍,多数是因磨损过甚和零件老化所造成,油路中的堵、漏、坏现象出现较多。

(3) the failurecharacteristics of the construction machinery of the frame type hydraulic pressnear the stage of major overhaul. When the construction machinery is used closeto the overhaul period, the loss of each component is increased. The faultcharacteristic of this stage is that the failure rate is high, and it iscommon, most of them are caused by wear and tear and part aging.

 

(4)不同季节工程机械的故障特点。工程机械故障率的高低与季节有关。冬季低温使用机械时,故障率高于夏季。例如,燃料供给系在冬季常因气温低雾化不良。燃油易凝固发生油路堵塞而不易启动.或发动机运转时熄火等故障;润滑油流动性差,加速了机件磨损;蓄电池漏电,造成发动机不易启动、制动不可靠、液体传动不正常等。

(4) the failurecharacteristics of construction machinery in different seasons. The failurerate of construction machinery is related to the seasons. In winter, thefailure rate is higher than that of the summer when the low temperature isused. For example, the fuel supply system is often poor in winter due to pooratomization. Fuel easy coagulation occurs oil passage is blocked and not easyto start. Or when the engine is running flameout fault; oil flow, acceleratethe mechanical wear and tear; storage battery leakage, resulting in engine isdifficult to start, braking is not reliable, transmission fluid abnormal.

因此,工程机械设备的故障特点呈现多样性,并根据不同的使用阶段有不同的特点。

Therefore, the faultcharacteristics of the engineering machinery and equipment is presented, and ithas different characteristics according to different stages of use.

文章来源:http://www.yxpic.com/news.asp?lt=286
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