Worm Gear electric 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! Because of the lack of friction, a keeping brake is essential: a electric motor brake or a Worm Gear Jack springtime pressure brake is required.
These worm gear screw jacks are very precision and reliability, it can meet all of the necessary protection, cost-efficiency, and durability mandates of the application. High power bronze worm gear is used, the payloads from 0.5T to 100T . A total of 11 sizes can be found, each in a vacationing nut version and a simple version.
The screw jacks can be utilized separately or in groups connected with drive shafts, joints, couplings, bevel gearboxes and various other mechanical components. They also could be driven by different motors: electric, with either AC electric motor or DC motor as well as hydraulic or pneumatic motors. Each one of these motion control products could be built-in many type jacking system arrangements or configurations.
Ball screw jacks are common where higher speeds and duty cycles are needed. Most screw jacks make use of trapezoidal screws Tr, because they are basic, robust and inexpensive. The proportion of screw jacks that use ball screws is nevertheless constantly increasing. The reasons for this are primarily their pitch accuracy, their high efficiency (much less power consumption and less heat generation) and the higher pitches available, which permit higher stroke speeds.
A screw jack can add a machine cut lifting nut. Because of this model screw jack, just the bronze nut move along with the screw shaft. The lifting screw will not slide. It is certainly similar to the linear actuator functioning basic principle which converts rotational motion into linear motion. From this stage to understand, an electric linear actuator is definitely a motorized screw jack.
The screw thread of screw jack can be acme screw and ball screw. So are there few variants of the screw jack. Commonly, machine screw jack and ball screw jack are available in your engineer task. Weighed against acme screw, the ball screw is definitely better as there are ball bearings between your nut and screw. The anti-friction ball bearing can increase the ball screw efficiency.