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将液压缸组装成品后,要按照有关验收技术条件进行试验,试验合格后才能使用。工程机械生产厂,如液压汽车起重机生产厂,液压缸种类规格繁多,要使这些液压缸都能放在一个通用的试验架上顺利做试验,研制这种试验架有一定难度。另外,在液压缸试验内容上,规定液压缸要进行几次全行程动作试验,试验后把残留在被试缸中的试验油一次排回到液压缸试验设备中,更是不容易解决的。不然试验完毕后,试验油被液压缸带走,既造成浪费又污染环境。如12t液压汽车起重机变幅缸,活塞直径×活塞杆直径×行程=160×125×1840mm~3,若不排除试验油,试验一次至少带走14.4L油(以杆腔计算)。
The hydraulic cylinder assembly finished, according to the acceptance of technical conditions for testing, the test before use. Construction machinery manufacturing plants, such as hydraulic truck crane manufacturing plant, hydraulic cylinder variety of specifications, to make these hydraulic cylinders can be put on a common test stand to do a smooth test, the development of this test stand a certain degree of difficulty. In addition, the contents of the hydraulic cylinder test, the provisions of the hydraulic cylinder to conduct several full-stroke test, the test residue in the test cylinder after the test oil once discharged back to the hydraulic cylinder test equipment, it is not easy to solve. Otherwise, after the test is finished, the test oil is taken away by the hydraulic cylinder, which not only causes waste but also pollutes the environment. Such as 12t hydraulic truck crane luffing cylinder, piston diameter × piston rod diameter × stroke = 160 × 125 × 1840mm ~ 3, if not rule out the test oil, the test at least take away 14.4L oil (calculated in the rod chamber).