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论文类型：期刊论文

发表时间：2022-06-30

发表刊物：起重运输机械

所属单位：运载工程与力学学部

期号：12

页面范围：97-99,100

ISSN号：1001-0785

摘要：Considering the requirement on leakage proof,the sealing device is set in the hydraulic jack cylinder.Dur-ing the movement of the jack cylinder,the sealing device will cause certain sliding friction resistance to the cylinder.Out-put force value of the jack is usually determined by measuring the input hydraulic value.The sliding friction resistance will affect the relation between the input hydraulic value and output force value.The traditional method to calibrate the force value of the jack system is performed within the rigid joint steel frame,and such method can hardly reflect the effect of the frictional resistance.The paper puts forward a new method to calibrate the force-value of the jack system,which adds varia-ble-size deformation cushion block and video monitoring recording and reading system.The new method can effectively re-flect the effect of sliding frictional resistance on calibration of the force value,significantly reduce the deviation of manual reading,and provide reference to practical use.

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