The history of screw jacks can be traced back to ancient Greece, with Archimedes' screw-driven water pump serving as a prototype. However, its evolution into a mature lifting tool mainly occurred during the Industrial Revolution. With the development of steel smelting and precision machining technologies, in the mid-to-late 19th century, screw jacks, capable of withstanding enormous loads and featuring highly efficient threads, began to be widely used in railway maintenance, bridge construction, and factory equipment installation. They were simpler, more reliable, and unaffected by temperature compared to earlier hydraulic or pneumatic devices, thus becoming the benchmark for lifting technology at that time.
A screw jack is a mechanical lifting device that utilizes the principle of screw transmission. It converts rotary motion into linear lifting motion by...
1. Keep the machine surface clean at all times. Regularly check the internal structure for damage, ensuring the small gear in the rocker arm moves fle...