Investingating device of elastic body circulation loading

The utility model discloses an elastomer cycle-loading testing device which comprises a power supply, a reductor, a crank block mechanisms; the two sides of the device reducer are separately provided with a same-structure crank block mechanism; the line OO#-[1] between the roller-wheel axle center O#-[1] and the reductor axle center O is vertical with the line OO#-[2] between the roller-wheel axle center O#-[2] and the reductor axle center O, and OO#-[1] = OO#-[2]. The two sides of the reductor is separately connected with the cranks, the cranks are provided with the roller wheels, a guide-rod is arranged on a guide-rail, one end of the guide-rod is connected with a sliding chute, the other end is connected with a supporting seat, the roller wheel can roll in the sliding chute, the two ends of the testing piece are connected with the supporting seat. The power supply and the relevant rotary components do not bear the cyclic loading to improve the service life, it is unnecessary to adopt the bigger power supply to conquer the cyclic loading, and the device can save the energy.