| 摘要 |
The invention relates to a pressure regulating system for adjusting a hydraulic drive to changing load situations, comprising a hydraulic accumulator (14) which is joined to the hydraulic drive (26), a supply device (30) for a working medium which generates the preload pressure of the hydraulic accumulator (14), and a regulating device by means of which the supply device (30) can be regulated so as to adjust the pressure characteristic curve of the hydraulic drive (26) by regulating the preload pressure of the hydraulic accumulator. According to the invention the supply device (30) comprises an additional hydraulic accumulator (42) which contains on the one hand the working medium of the supply device (30) and on the other hand a regulating medium, and the regulating device contains a controllable pressure supply device (52) for controlling the pressure of the regulating medium in the additional hydraulic accumulator (42).
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