关键词: 商用车驾驶室；液压系统；最大举升力

Abstract: The transportation industry plays an indispensable role in the national economy. As a carrier in the transportation industry, the maintainability and cab comfort of commercial vehicles are affected by the hydraulic cab tilting system. In order to achieve lower manufacturing and design costs, a new cab hydraulic system and hydraulic integrated valve structure were designed. The follow-up function of the new cab hydraulic system was undertaken by the hydraulic valve, and the parameters of the hydraulic valve could be adjusted by springs. In this paper, catia software was used to model the structure of the hydraulic valve, and matlab software was used to model and simulate the lifting process. The adjustable spring structure parameters of the hydraulic valve were affected by the lifting force. The analysis results showed that the new cab hydraulic system met the requirements of various working conditions of the cab, and the functions realized by the new hydraulic valve were consistent with the schematic diagram of the hydraulic system. The simulation results showed that the maximum lifting force during the lifting process was 19 112 N, which was basically consistent with the experimental results.

Key words: Commercial vehicle cab; Hydraulic system; Maximum lift force