Radial Piston Machine with Multi-Disc Brake

A radial piston machine, comprising:

• a housing including a first working connection and a second working connection;
• a drive shaft including at least one pivot bearing rotatably mounted in the housing with respect to an axis of rotation;
• a rotor configured to accommodate a plurality of pistons, the drive shaft connected to the rotor non-rotatably with respect to the axis of rotation, the plurality of pistons radially movable with respect to the axis of rotation so that the rotor and the plurality of pistons each delimit an associated working chamber;
• and
• a control surface surrounding the axis of rotation in a ring-like manner, the control surface disposed on an inside of the housing,
• wherein a distance between the control surface and the axis of rotation is variable along a periphery of the control surface so that a volume of a corresponding working chamber of the delimited working chambers changes periodically when a respective piston of the plurality of pistons contacts the control surface, while the rotor rotates with respect to the axis of rotation,
• wherein the housing comprises a fluid distributor configured to cooperate with the rotor in such a way that the delimited working chambers are fluidically connected alternately to the first working connection and the second working connections when the rotor rotates with respect to the axis of rotation,
• wherein the drive shaft comprises a shaft section, a disc section, and a first annular section fixedly connected to one another,
• wherein the housing comprises a second annular section disposed at least partially within the first annular section,
• wherein a brake disc assembly with a plurality of separate brake discs is disposed radially to the axis of rotation between the first annular section and the second annular section,
• wherein the brake discs of the plurality of brake discs are alternately non-rotatably connected to either the first annular section or the second annular section, so that a multi-disc brake is produced,
• wherein the brake disc assembly is pretensioned by a spring into a closed state of the multi-disc brake,
• wherein a ring-like brake piston is configured to delimit a brake chamber in sections,
• wherein the brake piston interacts with the brake disc assembly and the spring in such a way that the multi-disc brake is brought into an open state by pressurizing the brake chamber,
• wherein the brake disc assembly is disposed within the brake chamber,
• wherein the first annular section and the second annular section each delimit the brake chamber in sections, and
• wherein the disc section, the spring, the brake piston, and the brake disc assembly are disposed next to one another in a specified sequence along the axis of rotation in such a way that a force of the spring is transmitted to the brake disc assembly.