The tester consists of a high-strength pressure-resistant sealed chamber system, transmission control system, mixture feeding & discharging system, air pressure regulation system, and rock-breaking data acquisition system. It is adopted to investigate the wear failure mechanism of disc cutters under harsh working conditions and provide calculation data for the rock-breaking performance and service life of high-performance disc cutters.
Mount the shield disc cutter ring onto the rotating spindle inside the high-strength pressure-resistant sealed chamber. Fill the chamber with mixtures composed of mudstone, blue sandstone, mud, rock fragments and gravel. Multiple working conditions with different rotating speeds and air pressures can be set to simulate the rock-breaking process under high pressure and heavy impact. The tester reproduces various damage modes of cutter rings including uniform wear, eccentric wear, edge curling, edge chipping, fracture and shedding, so as to calculate the wear resistance and impact fatigue coefficient of shield disc cutter rings.
