2results about How to "Ease of performance evaluation" patented technology

This utility model relates to the field of hinge spring performance testing technology, and more particularly to a hinge spring comprehensive performance testing device. This utility model provides a hinge spring comprehensive performance testing device capable of simultaneously testing the fatigue performance and rebound performance of a hinge spring, facilitating a comprehensive performance evaluation of the hinge spring. A hinge spring comprehensive performance testing device includes a base and a sliding frame, etc., with the sliding frame slidably connected to the left side of the base. This utility model tests the hinge spring's fatigue performance by moving a lever up and down along a slide rail, causing the hinge on the other side to rotate. When the hinge rotates back to its original position, it contacts the lever. A pressure sensor monitors the pressure change between the hinge and the lever after the hinge rotates back to its original position, thus determining the hinge spring's rebound performance. This achieves the effect of simultaneously testing the fatigue performance and rebound performance of a hinge spring, facilitating a comprehensive performance evaluation of the hinge spring.

The utility model discloses a kind of tension test equipment for metal pipe test, belong to material mechanics test technical field, including platform, the upper surface both sides of platform are symmetrically equipped with guide column, the inside of guide column is equipped with power equipment, and the output end of power equipment is fixedly installed with lifting beam, the upper surface of platform and the lower surface of lifting beam are symmetrically equipped with clamping body, the front surface of clamping body is equipped with trapezoidal groove, and trapezoidal groove is equipped with wedge plate and moves symmetrically in horizontal direction inside, the front end of wedge plate is located clamping body outside, clamping installation groove is equipped in the front end of the inner surface of wedge plate, the utility model is by being arranged on the extension wedge plate of clamping body outside with clamping structure, so that clamping point is located in front of equipment main body, so that the limitation to the overall length of metal pipe is broken through, without cutting, directly longer pipe material can be clamped and tensile test, significantly improve test efficiency, and it is convenient to evaluate the performance of pipe material different position.