Novel tubular conveyer belt rebound force measuring device and measuring method thereof

The invention discloses a novel tubular conveyer belt rebound force measuring device and a measuring method thereof. The device comprises a chuck shell and a bevel gear disc coaxially arranged in thechuck shell. A planar threaded groove is formed in the upper end surface of the bevel gear disc. A plurality of clamping grooves of the same structure are symmetrically formed in the radial directionof the chuck shell. A clamping jaw of the same structure is arranged in each clamping groove. Each clamping jaw is limited in the corresponding clamping groove and can slide in the clamping groove. Aplurality of pin shafts meshed with the planar threaded groove are distributed on the lower sides of the clamping jaws at equal intervals. When the bevel gear rotates, the clamping jaws are pushed bythe planar threaded groove to synchronously move towards the center/outer peripheral direction of the chuck shell along the tracks of the clamping grooves. In this way, the size of the circumference of each clamping jaw can be c