30results about How to "Avoid too large" patented technology

The invention relates to a rated pressure compression roller device. The device comprises a shell, two compression roller modules and two roller modules for guide, wherein the compression roller modules and the roller modules for guide are arranged in the shell, two roller modules are arranged, and the compression roller modules are located between the two roller modules; and each compression roller module comprises a compression roller, a swing arm limiting shaft and two swing arms, wherein the swing arm limiting shafts are fixed inside the shell, one ends of each two swing arms are connected through a swing arm shaft, grooves are formed in the other ends of each two swing arms, the two ends of each swing arm limiting shaft are located in the grooves in each two swing arms correspondingly, the two ends of each compression roller are rotationally connected with each two swing arms correspondingly, the compression rollers are located between the swing arm limiting shafts and the swingarm shafts, and swing arm thrust bearings are arranged between the swing arm shafts and the swing arms. Compared with the prior art, the compression rollers are fixed to the shell in a flexible suspension mode so that acting force with rated magnitude can be output, and the situation that in the working process, a person applies extra pressure to the rollers, so that a test piece is unevenly or excessively stressed can be avoided.