Worm Gear electrical ball screw jack, anti-Rotation and higher pitches available
Translating(traveling screw) and rotating (traveling nut) configurations
Move loads and apply force more effectively than other machine screw actuators
No self-locking! Due to the lack of friction, a keeping brake is essential: a motor brake or a spring pressure brake is necessary.
These worm gear screw jacks are extremely precision and reliability, it can meet all of the necessary worm screw jack security, cost-efficiency, and strength mandates of your application. High power bronze worm gear is used, the payloads from 0.5T to 100T . A total of 11 sizes are available, each in a traveling nut version and a simple version.
The screw jacks can be used separately or in groups connected with drive shafts, joints, couplings, bevel gearboxes and other mechanical components. They also could be powered by different motors: electric, with either AC engine or DC motor in addition to hydraulic or pneumatic motors. Each one of these motion control products can be built in many type jacking system arrangements or configurations.
Ball screw jacks are normal where higher speeds and duty cycles are needed. Most screw jacks make use of trapezoidal screws Tr, because they’re simple, robust and inexpensive. The proportion of screw jacks that use ball screws is however constantly increasing. The reasons for this are primarily their pitch accuracy, their high efficiency (less power consumption and less heat era) and the higher pitches offered, which permit higher stroke speeds.
A screw jack can add a machine cut lifting nut. Because of this model screw jack, only the bronze nut move along with the screw shaft. The lifting screw does not slide. It is definitely similar to the linear actuator operating principle which converts rotational motion into linear motion. Out of this stage to understand, a power linear actuator is a motorized screw jack.
The screw thread of screw jack could be acme screw and ball screw. So there are few variants of the screw jack. Commonly, machine screw jack and ball screw jack are available in your engineer project. Compared with acme screw, the ball screw is certainly more efficient as there are ball bearings between the nut and screw. The anti-friction ball bearing can raise the ball screw efficiency.