Articulated car chassis articulated system

Abstract

The invention discloses an articulated car chassis articulated system. The articulated car chassis articulated system comprises a front frame, a rear frame, a slewing bearing, a left buffer and a right buffer, wherein the left buffer and the right buffer are arranged on the two sides of the slewing bearing. According to the arrangement of hydraulic control oil ways in each buffer, when a rod cavity of a hydraulic cylinder is compressed, hydraulic oil in the rod cavity returns into an oil storage tank through the oil way with set damping, and the hydraulic oil in the oil storage tank is sucked into a rodless cavity through the oil way without damping; when the rodless cavity of the hydraulic cylinder is compressed, the oil way through which the hydraulic oil returns into the oil storage tank from the rodless cavity and the oil way through which the hydraulic oil is sucked into the rod cavity from the oil storage tank are both oil ways without damping. By means of the buffers of the design, when a car turns, a piston rod of the hydraulic cylinder of one buffer is stretched to select and provide buffer force with set damping for the buffer, and a piston rod of the other buffer is compressed to provide tiny buffer force, so the car can turn more stably and safely; when the car turns back, the buffers generate small damping torque, so the car can turn back more quickly and lightly.

Description

technical field [0001] The invention relates to the technical field of vehicle chassis articulation, in particular to an articulated vehicle chassis articulation system with a double-cylinder single damping buffer device. Background technique [0002] With the rapid development of my country's automobile manufacturing industry, various vehicle manufacturing industries are also advancing by leaps and bounds. Articulated buses are gradually popularized in large and medium-sized cities in China due to their large passenger capacity and high utilization coefficient. An articulated bus is generally composed of front and rear carriages and a chassis articulation system connecting the front and rear carriages. The chassis articulation system includes a front frame, a rear frame, a turntable bearing, and a hydraulic buffer device. The frame is fixedly connected with the rear compartment of the articulated vehicle through the rear beam. [0003] Among them, the hydraulic buffer devi...

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Problems solved by technology

[0004] However, during the turning process of the vehicle, as the turning angle becomes larger, the buffer damping required by the system is different. Under the action of the hole, a certain damping is provided, which slows down the turning speed of the vehicle. If the hydraulic damping hole is blocked by hydraulic oil, the possibility of cylinder explosion will occur.

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