Device for measuring displacement of upper and lower frames in sector-shaped segment of continuous caster group

The invention discloses a device for measuring displacement of upper and lower frames in a sector-shaped segment of a continuous caster group. Upper and lower pedestals are arranged in the upper and lower frames respectively and positioned in the same vertical line, the top end of an upper support rod and the bottom end of a lower support rod are arranged in the upper and lower pedestals respectively, a displacement sensor is arranged in the upper support rod, the two ends of a pull bar is connected to the top end of the lower support rod and the displacement sensing end of the displacement sensor respectively, and an inclination angle sensor is arranged in the surface of the pull bar. The device can be used to detect displacement in the vertical and horizontal directions of the frames ofthe sector-shaped segment in a continuous casting thermal state, the real roll gap value can be monitored, the thermal-state roll gap precision of casters is improved, and a more reasonable control standard can be provided fo