Actuating device for machine elements that are subject to wear play, especially for brakes of railborne vehicles

US6145633A · kind A · utility

Assignee

• Mannesmann AG · DE

Inventors

• Jorg Niederstadt · Schramberg, DE
• Axel Kemner · Altwarmbüchen, DE
• Ralf Stoffels · Gerdau, DE

Key dates

• Filing date: Jun 17, 1998
• Grant date: Nov 14, 2000
• Expiry date: Jun 17, 2018

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2066/003
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An actuating device for machine elements that are subject to wear play, especially for brakes of railborne vehicles. The actuating device has a piston-cylinder unit operated by a pressure medium. The piston-cylinder unit has a piston rod engagable with an adjusting device configured as an adjusting nut/spindle assembly, for wear play compensation. The adjusting nut/spindle assembly has a sleeve-type adjusting nut with external toothing engagable with an automatically actuatable actuating drive. An electronic control unit generates an actuating signal for wear play compensation in dependence on the position of a brake piston connected to the piston rod. The brake piston position is measured by a sensor. The actuating signal is transmitted to the actuating drive.