Piston shaft connection joint used for hybrid power cylinder

Abstract

A piston shaft connection joint used for a hybrid power cylinder is composed of an oil cylinder piston rod (1), a connection nut (2) and a water cylinder piston rod (3). The oil cylinder piston rod (1) and the water cylinder piston rod (3) are connected through the connection nut (2) on the same horizontal line. According to the piston shaft connection joint used for the hybrid power cylinder, threaded connection is adopted, so that installation and disassembly are convenient, tightness is ensured, and at the same time, the complexity degree of assembly and disassembly is lowered largely. As a space exists inside the connection nut, when certain deviation of the radial centering installation positions of the two piston rods exists, the effect of eliminating installation errors is achieved through radial fine adjustment, correct transmission of force in the horizontal direction is ensured, and abrasion to a shaft and the cylinder and the force transmission loss caused by the errors of the centering installation positions can be avoided.

Description

technical field [0001] The invention provides a piston shaft connecting joint for a hybrid power cylinder, which is suitable for connecting the piston shafts of two cylinder bodies carrying different working fluids, and belongs to the technical field of aerospace science and technology. Background technique [0002] Traditional mechanical connections are divided into detachable connections and non-detachable connections. Non-detachable connections such as: welding, riveting, etc.; detachable connections such as: threaded connections, pins, chains, etc.; generalized connection methods include pulley connection, elastic pin coupling connection, gear connection, Oldham coupling connection, magnetic connection, etc. The invention mainly relates to a rigid connection device, which belongs to an improved screw connection method. [0003] Traditional hydraulic cylinders come in a variety of forms, and their classification methods are also different. According to the movement form...

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Problems solved by technology

[0004] If different working media are filled in the same cylinder, it will lead to high requirements on the sealing of the cylinder, so it is extremely difficult to complete the sealing in the same cylinder, which also leads to the fact that there is no hydraulic cylinder with mixed media at present.

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