Hydraulic buffer system and assembly method

Abstract

The invention discloses a hydraulic buffering system and an assembling method, and relates to the technical field of control of articulated vehicles. The hydraulic buffering system comprises a pressure control oil channel which is arranged on a hydraulic cylinder, wherein the pressure control oil channel comprises a first-stage damping system, a second-stage damping system and a third-stage damping system; the first-stage damping system is connected in parallel with the second-stage damping system, and a pressure release channel is arranged on the second-stage damping system; one end of the third-stage damping system is connected to a point where the first-stage damping system is connected with the second-stage damping system, and the other end of the third-stage damping system communicates with a rod port in a cylinder body. According to the technical scheme, the hydraulic buffering system has the advantages that the stability of the vehicles can be improved, and the damping effect can be improved. The invention further provides a method for assembling a first overflow valve. The method is characterized in that the detection can be carried out during the assembling process, and thus the product quality can be improved.

Description

technical field [0001] The invention relates to the technical field of articulated vehicle control, in particular to a hydraulic buffer system for articulated vehicles, which has a three-stage damping system and can realize smooth transition of damping; and a method for assembling an overflow valve in the damping system. Background technique [0002] With the acceleration of urbanization in our country, the diversification of transportation methods is constantly developing with each passing day. As a main tool for urban public transport, articulated vehicles use hinged devices to combine two or more sections of the body together to achieve large traffic. Passenger flow has been highly praised by the market. [0003] During the running of an articulated vehicle, it is usually necessary to rely on a special hydraulic mechanism to change the direction of travel of the vehicle body. CN204284291 U discloses a hydraulic buffer that realizes safe turning of the vehicle based on the...

AI Technical Summary

Problems solved by technology

[0003] During the running of an articulated vehicle, it is usually necessary to rely on a special hydraulic mechanism to change the direction of travel of the vehicle body. CN204284291 U discloses a hydraulic buffer that realizes safe turning of the vehicle based on the articulated system. The hydraulic buffer can be changed according to the angle or speed of the vehicle. Damping torque, however, its shortcoming is that in the process of switching the hydraulic control oil circuit, there will be a large damping step, which is likely to cause vehicle vibration and affect the comfort of passengers; in addition, the hydraulic control oil circuit The overflow valve on the road will cause defects during the installation process, increase the difficulty of testing, and affect product quality

Images