Arrangement for resilient absorption of forces

An arrangement for resiliently absorbing forces in various operational conditions, particularly for buffers, comprising an elongated housing having an axis;

• a resilient element located in said housing and formed as a friction spring having a plurality of inner conical rings and a plurality of outer conical rings cooperating with one another with interposition of a lubricant, said inner and outer rings bounding an inner chamber;
• and an additional body of the lubricant accommodated in said inner chamber bounded by said inner and outer rings and including such a quantity of the lubricant which is sufficient for continuously replenishing the lubricant between said inner conical rings and said outer conical ring during operation of the arrangement in various operational conditions, said friction spring having two axially spaced ends and two end conical rings each located at a respective one of said ends;
• and two pressure cups each having a flange portion abutting against a respective one of said end conical rings, a central threaded member extending through each of said pressure cups at a predetermined location and connecting said pressure cups with one another, and sealing means arranged at said locations and preventing outward flow of the lubricant from said inner chamber.

An arrangement for resiliently absorbing forces in various operational conditions, particularly for buffers, comprising an elongated housing having an axis;

• a resilient element located in said housing and formed as a friction spring having a plurality of inner conical rings and a plurality of outer conical rings cooperating with one another with interposition of a lubricant, said inner and outer rings bounding an inner chamber, said friction spring having two axially spaced ends, said housing having two housing parts which surround said inner and outer conical rings and are sealed against one another, each of said housing parts having a base portion for supporting a respective one of said ends of said friction spring, the base portion of at least one of said housing parts having an inner surface which faces toward said inner chamber and is provided with a plurality of grooves, said grooves extending in a radial direction and being uniformly distributed over said inner surface in a circumferential direction;
• and an additional body of the lubricant accommodated in said inner chamber bounded by said inner and outer rings and including such a quantity of the lubricant which is sufficient for continuously replenishing the lubricant between said inner conical rings and said outer conical ring during operation of the arrangement in various operational conditions.

An arrangement for resiliently absorbing forces in various operational conditions, particularly for buffers, comprising an elongated housing having an axis;

• a resilient element located in said housing and formed as a friction spring having a plurality of inner conical rings and a plurality of outer conical rings cooperating with one another with interposition of a lubricant, said inner and outer rings bounding an inner chamber;
• and an additional body of the lubricant accommodated in said inner chamber bounded by said inner and outer rings and including such a quantity of the lubricant which is sufficient for continuously replenishing the lubricant between said inner conical rings and said outer conical ring during operation of the arrangement in various operational conditions, said body of the lubricant being arranged inside said inner chamber under pressure;
• and a pressure equalizing means located in said inner chamber, said pressure equalizing means including a volume-compressible pressure equalizing element arranged in said chamber inside said body of the lubricant and constituted of polyurethane foam material.