2results about How to "Extended test time" patented technology

This invention discloses a planar spiral spring fatigue testing machine, comprising a base, a mounting seat fixedly mounted on the base, a reducer fixedly mounted on the mounting seat, a servo motor fixedly mounted at the rear of the reducer, and mounting brackets symmetrically mounted on the left and right sides of the mounting seat. Each mounting bracket is equipped with a rotatable rotating shaft. The output shafts at both ends of the reducer are nested and fixedly connected to the rotating shafts on the mounting brackets, and the rotating shafts on the mounting brackets are arranged symmetrically front to back. In this invention, the rotating shafts on the mounting brackets are arranged symmetrically front to back and have positioning grooves, so that the spiral springs to be tested are symmetrically installed. After one end is placed, the other end needs to be rotated 180 degrees counterclockwise. The servo motor drives the reducer to rotate, and the reducer and rotating shafts rotate together, causing the spiral springs to rotate. The spiral springs at both ends rotate in the same direction, and the forces on both sides cancel each other out. The torque of the servo motor can be smaller, making it more energy-efficient and effective.

The utility model discloses a chain saw brake testing arrangement, include: frame body subassembly, adjusting assembly and testing assembly, adjusting assembly includes: vertical mechanism, transverse mechanism, longitudinal mechanism and adjusting plate, vertical mechanism is located on frame body subassembly, the output of vertical mechanism is connected transverse mechanism, the output of transverse mechanism is connected longitudinal mechanism, the output of longitudinal mechanism is connected adjusting plate, testing assembly is located on adjusting plate, testing assembly includes: pendulum mechanism, positioning mechanism and reset mechanism, pendulum mechanism is hinged with adjusting plate, positioning mechanism is used for fixing pendulum mechanism at the height of setting, when testing, positioning mechanism lowers pendulum mechanism, reset mechanism is used for the pendulum mechanism after testing resets. The utility model can reduce the time of testing assembly position adjustment, improve the testing time of chain saw, improve the production efficiency of chain saw.