The friction coefficients between the hoisting-rope and friction pads made of different materials under different environmental conditions, load sizes, and load frequencies were investigated by using a friction and wear tester. The variation law of the friction coefficient with the change in the working condition parameters was explored through orthogonal test analysis; it is found that dry friction, a load of 100 N, and a frequency of 1 Hz are the optimal working conditions to achieve an optimal friction coefficient of the matching pair of the hoisting-rope and friction pads. Among them, the friction coefficient of the K25 pad is greatly affected by the environment, while the friction coefficient of the G30 pad is greatly affected by load. The results under all working conditions show that the friction coefficient of the K25 pad is greater than that of the G30 pad but the wear resistance of the G30 pad is better than that of the K25 pad. In terms of wear resistance, the K25 pad performs better under dry friction conditions than under other environmental conditions, while the G30 pad performs better under rain conditions. The conclusion can provide theoretical guidance for the reasonable matching between the hoisting-rope and its pads under different environmental conditions.

The effects of load and reciprocating frequency on reciprocating sliding of ZrO2/steel, Si3N4/steel, and SiC/steel under high water-based emulsion lubrication were studied by the ball-block sliding tester, including a series of tribological behavior and wear mechanisms. Through the analysis of the above characteristics, determine the influence of load and frequency on the friction and wear properties of the ceramic/steel friction pair. The results show that with the increase of load, the friction coefficient of the three ceramic friction pairs decreases, and the wear rate increases continuously. With the increase of frequency, the friction coefficients of ZrO2/steel and Si3N4/steel steadily decrease, the friction coefficient of SiC/steel increases slightly, and the wear rates of the three friction pairs decrease continuously. The comprehensive comparison shows that the ZrO2/steel friction pair shows the best tribological performance under different working conditions, which is more suitable for the friction pair material of high water-based hydraulic components, and the Si3N4/steel friction pair shows better wear resistance when the load is above 50 N.