“匍匐”是打鱼提现app
液压传动中常常呈现的不一般活动状况。轻细的“匍匐”使活动件发生眼光不易发觉的振动，较着的“匍匐”使活动件发生大间隔地跳动。匍匐景象是很无害的，是以消弭“匍匐”景象对改良液压体系不变性和进步机床加工精度长短常首要的。
"Crawling" is an abnormal movement state that often occurs in the hydraulic transmission of full-automatic mixer. Slight "crawling" causes the moving parts to vibrate imperceptibly, while significant "crawling" causes the moving parts to jump at a large distance. Creeping phenomenon is very harmful, so eliminating "creeping" phenomenon is very important to improve the stability of hydraulic system and improve the machining accuracy of machine tools.
驱动刚性差引发的“匍匐”
"Creeping" caused by poor driving rigidity
氛围进入油液中后，一部分溶于压力油液中，其他部分就构成气泡浮游在压力油中。因为氛围有紧缩性，使液压油发生较着的弹性，构成驱动刚性差而引发“匍匐”。
After the air enters the oil, part of it will dissolve in the pressure oil, and the rest will form bubbles to float in the pressure oil. Because the air has compressibility, the hydraulic oil has obvious elasticity, resulting in poor driving rigidity and "crawling".
在制作和修配整机时，应严酷到达公役请求，拆卸时要保障共同空隙。紧固各管道毗连处，避免泄露。平均紧固各接合面处的毗连螺钉，密封垫应平均，不许可用多层纸垫。断根附着于滤油器上的脏物，应接纳容量充足的滤油器。改良液压体系，想法避免体系中呈现部分真空，并设置须要的排气塞或放气阀。
When manufacturing and repairing parts, the tolerance requirements shall be strictly met, and the fit clearance shall be ensured during assembly. Tighten the connections of all pipelines to prevent leakage. Tighten the connecting screws at all joint surfaces evenly, and the sealing gasket shall be uniform. Multi layer paper pads are not allowed. The oil filter with sufficient capacity shall be used to remove the dirt attached to the oil filter. Improve the hydraulic system, try to prevent local vacuum in the system, and set necessary vent plug or vent valve.
液压元件空隙大引发的“匍匐”
"Creeping" caused by large clearance of hydraulic components
活动件低速活动时，一旦发生干磨擦，阻力增添。这时候候请求液压泵进步压力，但因为液压泵空隙大而严峻漏油，不能顺应履行元件因阻力的变更而构成的压力变更而发生“匍匐”。
When the moving part moves at low speed, once dry friction occurs, the resistance increases. At this time, the hydraulic pump is required to increase the pressure, but due to the large clearance of the hydraulic pump and serious oil leakage, it can not adapt to the pressure change of the actuator due to the change of resistance, resulting in "crawling".
修复或改换液压泵内整机，保障拆卸请求的空隙，以削减液压泵的泄露。
Repair or replace the parts in the hydraulic pump to ensure the clearance required for assembly, so as to reduce the leakage of the hydraulic pump.
节制阀失灵引发的“匍匐”：各类节制阀的阻尼孔及节省口被污物梗塞，阀芯挪动不矫捷等，使压力动摇大，构成推力或流量时大时小而发生“匍匐”。
"Crawling" caused by control valve failure: the damping holes and throttles of various control valves are blocked by dirt, and the valve core is not flexible to move, which makes the pressure fluctuate greatly, resulting in "crawling" due to large thrust or small flow.
坚持油液洁净，按期洗濯并改换，增强元件的掩护，以防液压油污染。
Keep the oil clean, clean and replace regularly, and strengthen the maintenance of components to prevent hydraulic oil pollution.
磨擦阻力变更引发的“匍匐”
"Creep" caused by friction resistance change
打鱼提现app
厂家以为这类景象在液压缸呈现的较多，首要因为液压缸中间线与活塞杆不平行，活塞杆部分或全长曲折，缸筒内圆被拉毛刮伤，缸筒精度达不到手艺请求，活塞杆两头油封调剂过紧等身分会引发“匍匐”。
The manufacturers of full-automatic mixer truck believe that this phenomenon occurs more in the hydraulic cylinder, mainly because the center line of the hydraulic cylinder is not parallel to the piston rod, the piston rod is partially or fully bent, the inner circle of the cylinder barrel is roughened and scratched, the accuracy of the cylinder barrel cannot meet the technical requirements, and the oil seals at both ends of the piston rod are adjusted too tightly, which will cause "crawling".
逐项查验液压缸的精度及毁伤环境，并进行修复或更新。液压缸装置精度应合适手艺请求。
Inspect the accuracy and damage of the hydraulic cylinder item by item, and repair or update it. The installation accuracy of hydraulic cylinder shall meet the technical requirements.
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