Lead Screw Elevator, also known as a螺旋传动机构(spiral drive mechanism). It is primarily used to convert rotational motion into linear motion or vice versa. There are models that mainly transmit energy.(Spiral presses, jacks, etc.)Also, there are those primarily focused on transmitting motion, such as the feed screw of machine tool worktables.)Additional adjustable parts available.BetweenSpiral transmission mechanisms in relative positions. Lead screw lifters come in two types: sliding friction and rolling friction mechanisms. The sliding screw nut mechanism is simple in structure, easy to process, and has a low manufacturing cost. It features an automatic locking function, but it has a large friction torque and low transmission efficiency.(30％～40％)。
The SWL series screw jacks are widely used in various industries such as machinery, metallurgy, construction, chemicals, culture, and health. They can accurately control and adjust the lifting or advancement height according to a certain program. They can be driven directly by an electric motor or other power sources, or manually. The input speed does not exceed 1500 r/min, with a lifting speed of 2.7 m/min. They come in different structural types and assembly methods, with lifting heights tailored to customer requirements. The SWL series screw jacks, during operation, feature low noise, smooth transmission, and flexible use. Additionally, to ensure safety during operation, the jacks are equipped with an automatic locking function. In case of equipment issues, the jacks can lock themselves, stop movement, and in doing so, protect the safety of the production environment and personnel to a certain extent.
Features of screw jack:
1The principle is that ball bearings are placed between the screw thread raceway of the screw and nut.
2When the screw or nut rotates, the ball bearings roll along the thread groove, generating rolling friction between the screw and nut during relative movement. To prevent the ball bearings from rolling out of the groove, return guide devices are installed at both ends of the nut's helical slots.
3They form a circulation loop with the threaded raceway, allowing the ball to circulate within the nut raceway.
