DEVICE FOR MONITORING AND MEASURING LINEAR DIMENSIONS Russian patent published in 2019 - IPC G01B5/14 G01B5/06 G01B5/18 

FIELD: machine building.

SUBSTANCE: invention can be used in assembly and installation of machine units containing parts with specified axial (end) clearance, in particular for determination of thickness of remote ring of water ring vacuum pumps and compressors. Device comprises a prism-shaped housing with one prismatic recess and two base surfaces, one of which is the prism end face contacting the shaft collars, and second, formed by working faces of prism, contacting with shaft surface for bearing. A through hole is made concentric to the working faces of the prism, in which a hollow post of the indicator is installed on the thread. On the post there is an indicator of a clock type, and the measuring rod of the indicator is in the through hole of the prism and when measuring it contacts the end surface of the hole for bearing of the bearing housing. Prism spring is secured at prism back side.

EFFECT: expansion of technological capabilities due to use of the device for various standard sizes of pumps, direct determination of thickness of a remote ring, reduction of time of control and increase of accuracy of measurements.

3 cl, 2 dwg