SWL worm hoist screw vertical screw lifte

  SWL screw liftswl series worm gear screw lifter is a basic lifting component, which conforms to JB / t8809 & mdash; 1998 (formerly JB / zq4391 & mdash; 86)
Bearing capacity 2
5 & mdash; 120T。 The utility model has the advantages of compact structure, small volume, light weight, wide power source, low noise, convenient installation, flexible use, multiple functions, multiple supporting forms, high reliability, long service life and so on
It can accurately control and adjust the lifting or propulsion height according to a certain program, which can be directly driven by motor or other power, or manually
The input speed is 1500r / min and the lifting speed is 2
7m/min
There are different structural types and assembly methods, and the lifting height is manufactured according to the requirements of users
The device can be self-locking

Screw lifter is also known as screw transmission mechanism It is mainly used to transform rotary motion into linear motion or linear motion into rotary motion
There are mainly to transfer energy, such as screw press, Jack, etc; There are also feed screws that mainly transfer motion, such as machine tool workbench; There are also screw transmission mechanisms to adjust the relative position of parts
Screw lifter can be divided into sliding friction mechanism and rolling friction mechanism
Worm gear material
Aluminum bronze ZQAl9-4 has high strength and good wear resistance
It is suitable for working under general load

Tin bronze zcusn10pb1 has high hardness, excellent wear resistance, is not easy to bite, has good casting performance and cutting performance, and is suitable for working under high load and high speed
The worm gears of DM series products of our company are made of 10-1 tin bronze

Processing technology
Rough blanking car
Quenching and tempering treatment (improve the mechanical properties of materials)
Semi finish turning outer circle rough turning spiral surface
Finish turning outer circle finish turning spiral surface
Spiral surface quenching (improve the hardness of spiral surface and reduce the wear speed)
Fine grinding of shaft head and bearing position
Milling keyway
Finish grinding the spiral surface (the special worm grinder can finish grinding the spiral surface, reduce the roughness of the spiral surface, improve the friction of the working surface and improve the transmission efficiency)
Worm material
20CrMnTi surface carburizing and hardening treatment has good workability, small machining deformation and good fatigue resistance

The materials commonly used for 40Cr shaft parts have good mechanical properties after quenching and tempering, high strength and good toughness

45# steel has high strength and machinability after quenching and tempering treatment

Processing technology
Rough blanking car
Quenching and tempering treatment (improve the mechanical properties of materials)
Semi finish turning outer circle rough turning spiral surface
Finish turning outer circle finish turning spiral surface
Spiral surface quenching (improve the hardness of spiral surface and reduce the wear speed)
Fine grinding of shaft head and bearing position
Milling keyway
Finish grinding the spiral surface (the special worm grinder can finish grinding the spiral surface, reduce the roughness of the spiral surface, improve the friction of the working surface and improve the transmission efficiency)