Worm Gear Screw Jack: Principle and Applications Principle A worm gear screw jack is a mechanical transmission device that converts the rotary motion of a worm gear into linear motion of a screw. This transformation is achieved through the frictional engagement between the helical threads of the worm and the matching threads of the worm wheel. The worm, typically having a helix angle of 45...

Understanding Elevators and Lifts in One Minute As modern industry develops, high-altitude work has become an indispensable part of many industries. However, high-altitude work not only requires superb skills but also safe and reliable equipment to ensure the safety of workers. In this field, elevators and lifts have become an indispensable tool. Elevators and lifts are vertical lifting devices...

The Role of Wall Tie in Tower Cranes A tower crane is a type of high-altitude lifting equipment that has advantages in height, span, and load-bearing capacity. It is primarily composed of a tower, jib, counterweight, and balance arm. The tower height typically ranges from tens to hundreds of meters, while the jib and balance arm can extend in different directions. The counterweight balances the...