A Highly Compact "Micro Differential" Closed Servo Mechanism with Single Rod

Abstract

The invention belongs to the technical field of large ship steering mechanisms, and relates to a single-rod highly compact micro-differential closed type servo mechanism which realizes a micro differential of two cavities, lowers the demand of a system for the hydraulic energy flow amount and improves energy utilization efficiency of the system. The single-rod highly compact micro-differential closed type servo mechanism comprises a servo mechanism body and two self-pressurization oil tanks (10) with the dual actions of mechanical springs and air pressure. The servo mechanism body comprises an actuator cylinder (1), a piston rod (2), a shell (3), a supporting rod (4), a rear support (5), a front support (6), a displacement sensor (7), a supporting ring A (8) and a combined seal A (9). The demand of the system for the hydraulic energy flow amount is lowered, the energy utilization efficiency of the system is improved, a compact type closed type system design is realized, the radial component force of a load can be effectively borne, cylinder scoring is avoided, and the structural compactness and anti-jamming capability of the servo mechanism are increased.

Description

Technical field [0001] The invention belongs to the technical field of large-scale ship steering mechanisms, and specifically relates to a single-rod high compact "slightly differential" closed servo mechanism. Background technique [0002] The main advantages of the double-barrel hydraulic servo mechanism are the good symmetry of the two chambers, and the consistent control of the two-chamber characteristics is easy to achieve. The main disadvantages are the long axial length of the servo mechanism and the poor compactness of the structure; the traditional single rod The hydraulic servo mechanism has the advantages of compact structure, but in applications where the consistency of telescopic performance is required, its control is more complicated or the energy efficiency is low. [0003] The application of the patent example requires a load force of 60T, a stroke of 600mm, and a minimum axial length of less than 1200mm, and a good consistency in the telescopic performance of the ...

AI Technical Summary

Problems solved by technology

The double-rod structure cannot meet the minimum axial length requirement, so only a single-rod structure can be used, and the traditional single-rod structure needs to meet the design requirements, which will make the energy demand in the direction of extension huge, and the consistency control of the expansion and contraction characteristics is complicated

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