In this paper,in view of the sealing,copper sleeve and plunger damage in the working process of the larger high speed forging hydraulic press the main cylinder.firstly,The double connection spherical hinge structure design parameters to the anti-offset protection mechanism's influence of double connection spherical hinge is determined from the anti-offset protection mechanism .Then,the double connection spherical hinge structure design parameters to the anti-offset protection mechanism's influence of double connection spherical hinge were analyzed..Finally,the working state model of the 50MN high speed forging hydraulic press master cylinder's was built,and according to the plane statics method,the maximum thrust of the main cylinder plunger to the guide sleeve and the seal,and The influence of the double connection spherical hinge struc-ture design parameters to he main cylinder plunger were obtained. The results show that the maximum open-ing angle of the double connection spherical hinge structure to the anti-offset capacity of the master cylinder has a great influence in the actual work. Currently,the maximum design opening angle of the double con-nection spherical hinge structure of 50MN high speed forging hydraulic press is unfavorable to the anti-offset protection of the master cylinder.
High speed forging hydraulic pressMaster cylinderPartial LoadSpherical hinge
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