Device for measuring friction force of sample in high-temperature and high-pressure water vapor environment

The invention relates to the technical field, and provides a device for measuring friction force of a sample in a high-temperature and high-pressure water vapor environment, which comprises a sample clamp and a plurality of micro-motion measuring mechanisms which are symmetrically arranged and are fixedly connected with the sample clamp, the micro-motion measuring mechanism comprises a coupler, a sensor signal line transmission connecting piece, a hollow connecting rod, a sensor, a first pull rod, a second pull rod, a third pull rod, a pressure-bearing sleeve, a sealing end cover and a fastening seat, kinetic energy is transmitted to the micro-motion measuring mechanism through the coupler, and the sample clamp can vibrate at small amplitude. According to the device for measuring the friction force of the samples in the high-temperature and high-pressure water vapor environment, the problem that a high-pressure kettle sealing structure interferes with a force measuring sensor can be solved, accurate measureme