Rocker arm suspension capable of realizing large-angle rotation adjustment

Abstract

The invention discloses a rocker arm suspension capable of realizing large-angle rotation adjustment. The rocker arm suspension comprises a gear shaft, two rack assemblies, four oil cylinders and twoair cylinders; the two rack assemblies are arranged up and down and are meshed with the gear shaft at the same time, and the two rack assemblies are matched with the four oil cylinders through pistonsat the two ends to form four hydraulic cavities; the two hydraulic cavities on one diagonal line communicate with each other through an oil pipe; diaphragms or pistons are arranged in the two air cylinders on the left side and the right side of the gear shaft and are isolated from oil liquid so as to form two air pressure cavities, a damping valve is arranged in the air pressure cavity, the two air cylinders are respectively connected with the oil pipes communicating with the hydraulic cavities through pipelines, and when the static pressure is balanced, the pressure of the hydraulic cavitiesis equal to the pressure of the air pressure cavities. According to the rocker arm suspension in the invention, large-angle rotation adjustment of a rocker arm can be realized; and by controlling therotation adjustment of the rocker arm, obstacle crossing and trench crossing of the whole vehicle are facilitated, so that the ability of overcoming terrain barriers by the whole vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle suspension, in particular to a suspension capable of large-angle rotation adjustment. Background technique [0002] With the development of unmanned platform technology, how to improve the vehicle's ability to pass through complex terrain has become the focus of technical research and development in recent years, among which the rocker suspension has gradually become the development trend of the future vehicle walking system. Performance has become an urgently needed component for unmanned vehicles and manned high-mobility platforms in the future, which can help improve the passing ability of the whole vehicle, especially improve the ability of the vehicle to cross obstacles and cross trenches. [0003] At present, there are three models in the United States that involve rocker suspension technology, namely MULE, CRUSHER and GVX-T. CRUSHER is an unmanned ground vehicle, which is applied to rocker...

AI Technical Summary

Problems solved by technology

The advantages of this solution are simple structure and strong bearing capacity, but the adjustment angle of the rocker arm is small, which is not conducive to the realization of the vehicle's active obstacle surmounting

[0005] By inquiring about the MULE suspension patent, the rocker suspension adopts the scheme of torsion bar + magneto-rheological shock absorber + planetary deceleration, but the structure of this scheme is complicated, and the main components include harmonic deceleration device, planetary deceleration device, Torsion bar torsion tube group, torque limiting clutch and magnetorheological shock absorber (or friction shock absorber)

However, the disadvantages of this solution are: since the torsion bar is realized in the form of torsion tube + torsion bar, the processing of the torsion bar torsion tube assembly is difficult, and the stiffness of the torsion bar is small, so it is difficult to carry a large load; the harmonic reduction device is a precision The transmission parts are complicated to process and have a low service life; the domestic technology of magneto-rheological shock absorbers is not yet mature; therefore, it is difficult to apply this solution to real vehicles in the near future

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