GAS CYLINDER SELF-RESETTING-TYPE HIP-JOINT TESTING MACHINE

摘要

Disclosed is a gas cylinder self-resetting-type hip-joint testing machine, comprising a frame constituted of a top plate (31), a base plate (2) and a strut (15). A support frame (14) is provided in the frame, and a drive shaft (60) is fixed in the support frame (14). A lower cam wheel (5), a turbine (17), a central cam wheel (57) and an upper cam wheel (56) are successively provided on the drive shaft (60). A bearing seat with an arcuate surface is provided above the support frame (14) and a base with a spherical surface (53) is provided on the bearing seat with an arcuate surface and fits with the arcuate surface. A solution tray (26) is provided on the base with a spherical surface (53), and an articulation head ball seat (52) embedded in the base with a spherical surface (53) is provided in the solution tray (26). A movable platform (29) is provided on the solution tray (26) and is fixed to a tray edge thereof. The movable platform (29) is connected via a steel cable traction device and a pneumatic drive mechanism to the three cam wheels (5, 57, 56), respectively. A hydraulic cylinder (37) is provided on the top plate (31) with a piston rod of the hydraulic cylinder (37) passing through the top plate (31). A temperature controller (42) controlling the temperature in the solution tray (26) is provided on the top plate (31) and a ball push pin (8) is provided on the base plate (2) with the top of the ball push pin on the drive shaft (60). The testing machine has a compact structure, is low in cost, is convenient to operate, and can accurately simulate the actual movement of a human hip-joint in the environment of a testing room.