Crawler-type double-car-body state adjusting method and hydraulic system adopted by method

Abstract

The invention discloses a crawler-type double-car-body state adjusting method and a hydraulic system adopted by the method. The hydraulic system comprises a front car body and a rear car body which are connected through a hinge joint device. Hydraulic oil cylinders are arranged between the hinge joint device and the two car bodies, and the two hydraulic oil cylinders are connected with the hydraulic system. The hydraulic system controls the extensible lengths of the two hydraulic oil cylinders to enable the included angle formed by vertical faces of the two car bodies to be optionally adjusted at the connection position between an arch and a recess so as to adapt to the cross-country performance of a crawler-type double-car-body vehicle and the safety and stability during float-crossing. The hydraulic system for state adjustment of the front car body and the rear car body is simple in structure, efficiency and safe, can absorb partial impact force and vibration produced by the vehicle in running, enables the cross-country performance of the vehicle to be good and can improve the safety and stability during float-crossing. The whole layout of the hydraulic system is easily achieved. The hydraulic system is simple in operation and reliable in functions. A load-sensitive pump is introduced into the system, outputting is adjusted according to a feedback result, and an energy-saving role played. The running comfort, the cross-country passing ability and in-water float-crossing safety of the whole vehicle can be improved.

Description

technical field [0001] The invention relates to a method for adjusting the state of a crawler-type double car body and a hydraulic system used therein, belonging to the technical field of special vehicle control. Background technique [0002] The crawler-type double-body structure has low grounding specific pressure and strong off-road passing performance, and can easily traverse harsh terrains such as swamps, snow fields, mountains, lakes, etc. When the vehicle is running on the road, the relative vibration and impact of the front and rear bodies are large, which seriously affects the comfort of the driver and passengers; when the vehicle is driving off-road, the angle of the front and rear bodies needs to be adjusted to ensure the passage The ability of vertical obstacles and "V"-shaped trenches; when the vehicle is floating on the water, the angle between the front and rear body will be affected by the upward buoyancy change, which reduces the safety and stability of f...

AI Technical Summary

Problems solved by technology

[0002]The crawler-type double-body structure has low ground specific pressure and strong cross-country performance, and can easily cross swamps, snow fields, mountains, lakes and other harsh terrains ; Since the front and rear car bodies are linked by multi-degree-of-freedom joints, when the vehicle is running on the road, the relative vibration and impact between the front and rear car bodies are large, which seriously affects the comfort of the drivers and passengers; when the vehicle is driving off-road When the vehicle is floating, the angle of the front and rear bodies needs to be adjusted to ensure the ability to pass through vertical obstacles and "V"-shaped trenches; when the vehicle floats on water, the angle between the front and rear bodies will be affected by the upward buoyancy change. Reduced the safety and stability of floating

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