A Rocker Suspension That Can Realize Large-Angle Rotation Adjustment

Abstract

The invention discloses a rocker arm suspension capable of large-angle rotation adjustment. The rocker arm suspension includes a gear shaft, two rack assemblies, four oil cylinders and two air cylinders; the two rack assemblies are arranged up and down And mesh with the gear shaft at the same time, the two rack assemblies form four hydraulic chambers through the cooperation of the pistons at both ends and the four oil cylinders; the hydraulic chambers on the diagonal line communicate with each other through oil pipes; they are located on the left and right sides of the gear shaft There are diaphragms or pistons in the two cylinders that are isolated from the oil to form two air pressure chambers. Damping valves are installed in the air pressure chambers. The two cylinders are connected to the oil pipes connected to the hydraulic chamber through pipelines. When the static pressure is balanced, the hydraulic pressure The pressure of the chamber is equal to that of the air chamber. The invention can realize the large-angle rotation adjustment of the rocker arm, and by controlling the rotation adjustment of the rocker arm, it is beneficial for the entire vehicle to overcome obstacles and trenches, thereby improving the ability of the entire vehicle to overcome terrain obstacles.

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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