Stator-rotor system and method for adjusting a stator in a stator-rotor system

A stator-rotor system of an eccentric screw pump comprising:

• a stator with an internal thread, the stator comprising a support element and an elastomer part, wherein the support element surrounds the elastomer part in sections around the whole circumference,
• the stator-rotor system having an adjusting mechanism for adjusting the stator, the adjusting mechanism having a first adjustment element and a second adjustment element, coupled to the stator-rotor system,
• wherein the first adjustment element and the second adjustment element are distance-variable relative to one another,
• wherein the first adjustment element and the second adjustment element have a first distance from one another in a first working position and wherein the first adjustment element and the second adjustment element have a second distance from one another in a second working position,
• wherein the first distance is not equal to the second distance,
• wherein in the second working position the cross-section and the length of the elastomer part of the stator are changed compared to the cross-section and the length of the elastomer part in the first working position,
• wherein a supporting and/or compensating element is arranged between the first adjustment element and the second adjustment element, said supporting and/or compensating element at least partially covering and supporting an exposed end region of the elastomer part.