Screw jack lifting machines, as functional components, have been widely used in various industries. In fact, screw jack lifting machines can be utilized almost anywhere mechanical displacement transmission is needed. Examples include transmission devices in the machinery industry, CNC execution units; roller movement devices in the metallurgy industry, steel ladle lifting and tilting mechanisms in steel mills, and motion transmission devices in inaccessible areas; vehicle lifting platforms in the railway vehicle industry, large-scale flexible clamping, positioning tools, and welding robots; lifting devices and large automatic or remotely controlled door and window opening mechanisms in the construction industry; gate opening devices for water conservancy industries, radar, and solar remote sensing devices; and lifting stages and lifting devices in the automotive manufacturing sector.

The elevator is a motion unit ingeniously combining a worm gear reducer and lead screw nut sets. It can be used individually or quickly assembled like a building block with connecting components, to achieve movements such as lifting, reciprocating, and flipping of objects. The lifting platform's up and down movement is achieved by one or more screw jacks, powered by a motor and connected by rods, allowing multiple jacks to lift synchronously, ensuring smooth and stable lifting of the platform.

The working principle consists of a worm gear reducer and a lifting screw, with the reduction component being the worm gear drive, which uses the worm to drive the worm gear for减速. The center of the worm gear is an internal threaded structure, serving as the nut for the lifting screw, and is compatible with it. The lifting speed is equal to the worm input speed divided by the reduction ratio of the worm and worm gear, then multiplied by the pitch of the lifting screw. Due to its structural characteristics, this worm screw lifting mechanism typically employs grease lubrication. Some series use oil lubrication, which offers the advantages of longer lifespan and more stable operation compared to the grease-lubricated series.