FIELD: engines and pumps.
SUBSTANCE: device contains the upper and lower subs, casing, consisting of anchoring and damping barrel sites, located in the central part, has conical and cylindrical parts. In this case, in the lower part of the body inside the longitudinal grooves, there are biscuits, which are able to deviate from the axis of the body due to axial movement along the conical part of the barrel. In addition, the cushioning assembly consists of a spring centralizer, whose flat springs are made of metal with shape memory effect.
EFFECT: increasing the reliability of the device and simplifying the design.
1 dwg
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