Instrument is carried to cable based on tension control

The utility model discloses an instrument is carried to cable based on tension control, the first driving wheel of following is adorned in first shaft through a round borehole jack, and rotatory at epaxial axis around first shaft of the first round, one end fixed connection in the first shaft of first connecting rod, and the other end of first connecting rod sets up first ball, a bearing ball contact cable, the 2nd bearing ball contact cable, second ball, first ball and the first driving wheel of following set gradually along the cable direction of advance, the action wheel is adorned in the second shaft through a round borehole jack, and sets up the motor on the action wheel, and it is rotatory around second shaft axis that the motor drives the action wheel, and the one end of telescopiclink sets up the third ball, the 3rd bearing ball contact cable just lies in between second ball and the first ball, displacement sensor detects the flexible volume of telescopic link. The utility model discloses instrument i