Turning returning locking mechanism assembly and turning system thereof

Abstract

The invention provides a turning returning locking mechanism assembly. The turning returning locking mechanism assembly comprises an unlocking oil cylinder, an unlocking spring, a returning spring, a mechanical lock assembly, a rotating hinge pin, a returning cylinder, a telescoping cylinder, a telescoping shaft, a left supporting seat fixing nut, a left spring supporting seat assembly, a right spring supporting seat assembly, an inter-cylinder check ring, a hinge pin, an unlocking spring supporting seat, an upper unlocking cylinder support, a lower unlocking cylinder support, a ball stud, a locking sensor and an unlocking sensor. According to the turning returning locking mechanism assembly, a brand new turning returning locking mechanism assembly is developed and can be telescoped by following a rear axle turning hydraulic cylinder while a rear axle normally turns; in case that the rear axle is not returned, the mechanical holding and rigid locking of a rear axle turning rod system in an intermediate position can be kept; in case of electrical or hydraulic fault of a whole-wheel turning system, passive active returning is performed and rigid locking is realized, so that the reliability of the whole whole-wheel turning device set is greatly improved.

Description

technical field [0001] The patent of the invention relates to a high-reliability electromechanical-hydraulic all-wheel steering system suitable for wheeled vehicles, which belongs to the fields of mechanical, hydraulic and motor vehicle applications. Background technique [0002] Wheeled equipment is an important part of the army's weapon equipment system, and it is an important land mobile platform for the land, sea and air forces to realize the development strategy of "global mobility, three-dimensional protection, multi-dimensional and multi-energy". Vehicle mobility, broadly speaking, refers to the ability to quickly reach space and regions, including tactical mobility and strategic / combat mobility. For wheeled vehicles, the improvement of mobility is more focused on improving soft ground and random off-road ground. Passing ability, plateau and mountain driving performance, air transport performance, etc. The essence of the wheeled vehicle steering system is based on th...

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Problems solved by technology

[0004] (2) Compared with engineering vehicles, wheeled vehicles have more complex working conditions and harsher environments. The response characteristics and impact resistance of the follow-up steering axle are common issues that affect vehicle handling stability and safety.

[0006] From the above comparison, the variable vehicle structure, complex application environment, and harsh service conditions of wheeled vehicles have brought great challenges to the reliable application of all-wheel steering technology on wheeled vehicles. The technical framework of the all-wheel steering system of engineering vehicles cannot meet the requirements of use. Therefore, it can simultaneously have the dynamic response and impact resistance of the follow-up steering axle in complex environments, and the median steering stiffness of the follow-up steering axle under nonlinear loads and The all-wheel steering system with the three core capabilities of the active return of the follow-up steering axle under the condition of system failure and vehicle damage will become a high-reliability all-wheel steering system suitable for wheeled vehicles

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