Articulated vehicle chassis articulation system

Abstract

The invention discloses a chassis articulation system of an articulated vehicle, which includes a front frame, a rear frame, a turntable bearing, and left and right buffers arranged on both sides of the turntable bearing. The hydraulic control oil circuit on each buffer is set as follows: When the rod cavity of the hydraulic cylinder is compressed, the hydraulic oil in the rod cavity returns to the oil storage tank through the set damped oil circuit, and the hydraulic oil in the oil storage tank is sucked into the rodless cavity through the non-damped oil circuit; when the hydraulic cylinder has no When the rod chamber is compressed, the oil passage from the rodless chamber back into the oil storage tank and the oil passage from the oil storage tank into the rod chamber are both non-damping oil passages; the buffer designed in this way makes one of the buffers stop when the vehicle is turning. The piston rod of the hydraulic cylinder is stretched to provide a set damping buffer force for the buffer selection; the piston rod of the other buffer is compressed to provide a small buffer force, making the vehicle turn more stable and safe. At this time, a small damping torque is generated on the buffer, which makes the turning faster and lighter.

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...

AI Technical Summary

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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