Patent ID: 8573064

Claim:
A magnetic suspension supporter for a direct tension test apparatus, comprising: an upper end cap and a lower end cap for fixing a sample, an upper chain and a lower chain connected to the upper and lower end caps respectively, an upper joint and a lower joint connected to the other ends of the upper and lower chains respectively, the lower joint being fixed to the test machine foundation; the upper end cap and lower end cap, the upper chain and lower chain as well as the upper joint and lower joint having a common vertical axis and being arranged in a cascade form, characterized in that a sample supporter is arranged between the lower end cap and the test machine foundation, the sample supporter has two magnets structure which comprises a pair of upper magnet provided at the underside of the lower end cap and lower magnet on the upside of the test machine foundation, the polarity directions of the two magnets are reversed and the same polarity are arranged oppositely on the axis, and the two magnets implement relative movement; wherein a separating-proof upper bolt and a separating-proof lower bolt are arranged between the upper/lower chains and the upper/lower end caps, respectively.