During some large mechanical preventive maintenance, sometimes it need to unload some round articles, the widespread way of doing this is to use mechanical spring exerciser now. And in some places use the strong line of ironware to pry, but it not only does seriously destroy to the workpiece, but also may be harmful to the workman. So designs hydraulic pressure spring exerciser. The design mainly contains two parts; the first part is the design of hydraulic system, the second part is the design of hook.
The major of the design contains it makes the hydraulic system have the automatically unload function when it overstressed, the design and sealing of the interface, the material’s select and organization’s design of the hook. The whole design makes the hydraulic system and mechanic combine together.
