Experimental Study of the Multi-disc Negative Brake for a Hydraulic Motor

Abstract

This paper describes the methodology for experimental testing of a multi-disc brake. The construction of this brake was also present. The brake is dedicated to hydraulic motors with a small working volume. Experimental tests were carried out on a brake with plates immersed in oil and, for comparison, tests were carried out on a dry brake. As a result of the tests, the permissible torque (load) that is able to transfer the brake and the pressure required to release the brake were determined. The temperature rise in the chamber of the uncoupled brake (both wet and dry brake), whose shaft with active discs was rotated at speed of 1,500 rpm, was also examined. The influence of the deformation of the brake discs on the characteristics of the torque of friction in these discs was also observed.