Planetary Phase Shifter Differentials

Articles About Planetary Phase Shifter Differentials


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1 Microstepping Tutorial (October 2013)

This article describes the challenges involved in designing and implementing microstepping systems.

2 In Motion (March 2019)

The following special product news section examines the latest products and technologies in motion control.

3 Power - and Sand - to the People (March 2020)

Zach Rountree's life would be a lot easier if his job site was closer to town. As the owner and president of Rountree Construction, he oversees an operation that pulls 200 tons of material an hour out of a remote lake in Stockton, Georgia. Big equipment demands three-phase power, but out in the remote timberlands of rural Georgia, only single-phase power was available.

4 Phase Management as a Strategy to Reduce Gear Whine in Idler Gear Sets (April 2020)

This work explains why some idler sets produce so much gear whine. While transmission error must be managed, there is another tool in the gear whine management toolbox.

5 A Model for Predicting Churning Losses in Planetary Gears (September 2019)

In the general context of the reduction of energy consumption and polluting emissions, gearbox efficiency has become a major issue.

6 Smashing the Efficiency Barrier (October 2018)

A Practical Comparison of Planetary and Orbitless Gear-Heads.

7 Lightweight, Highly Efficient Drive System (February 2017)

This paper presents a joint project conducted by Ashwoods Electric Motors and Oerlikon Fairfield that uses planetary drives with an integrated electric motor. Current solutions used in production of off-highway vehicles rely upon large, heavy and inefficient brushed DC or induction motors, coupled to a planetary gearbox. This presents a number of challenges to the vehicle designers such as: limited vehicle range, limited space around the motor/drivetrain, and motor durability. The proposed integrated system utilizes an Oerlikon Fairfield Torque Hub, widely used in off-highway vehicles, and the Ashwoods first-to-market, interior permanent magnet motor. How these products are integrated, i.e. incorporating a brake solution, represents a market-changing product. Using interior permanent magnet (IPM) technology in the motor design means the motor can be up to 70% lighter, 70% smaller and 20% more efficient than traditional motors used in off-highway traction applications.

8 Determination of Load Distributions on Double Helical-Geared Planetary Gearboxes (June 2017)

Standardized calculation methods such as ISO 6336 and DIN 3990 already exist to determine the load distributions on gears inside a planetary gearbox, but by their very universal nature, these methods offer varying results depending on the gearbox design. Double helical gears, in particular, can benefit from more specific, complex algorithms to reach a maximum level of efficiency. Double helical gears interact with the rest of the gearbox differently than helical or spur gears, and thus benefit from different analytical models outside the standardized methods. The present research project describes the algorithm to determine the load distribution of planetary gearboxes with double helical gears.

9 Finite Element Method Based Analysis of Planetary Gear Systems Considering Backlash and Manufacturing Deviations (June 2018)

The load carrying capacity of gear transmissions depends strongly on design, material and operation conditions. Modern analysis methods, e.g. finite element analysis (FEA), consider the above parameters with more or less sufficient accuracy. Yet it remains an ongoing challenge to account for backlash and manufacturing errors, despite a definite need to do so.

10 Gearbox Innovation Evolves in Step with Expanding Servo Market (September 2018)

Approximately one quarter of all servo motors around the world require some type of gear reduction in their applications. From large satellite dishes to precision medical devices, gearboxes boost torque and reduce speed for servos in order for them to be sized more efficiently. While gearbox fundamentals haven't changed much over the past 20 years, their effectiveness has improved significantly, driven mostly by the need to accommodate advancements in servo technology.

11 Rain or Shine (April 2008)

Brevini Power Transmission helps spectators enjoy stadium sights and sounds.