Posts Tagged 'DC Motor'

Three critical factors for servo motor sizing

Reprint of December 30, 2015 Linear Motion Tips article from Design World


Servo motor sizing is often done with the help of a manufacturer’s sizing program, but it’s important to understand the three most critical factors—speed, torque, and inertia—to ensure you select the best-fit motor for the application.

Selecting the right servo motor for a linear motion system is a complex task, beginning with initial assumptions and component selections, which must be checked through a series of calculations and, in most cases, repeated over several iterations until a suitable combination of motor and mechanics is found. Most motor manufacturers offer online sizing tools that make the process easier, ensure that the best components are selected, and help preserve the design engineer’s sanity. But as a designer, or even an end user, it’s important to have an understanding of the three critical parameters of servo motor sizing: inertia, speed, and torque.

Click on the link below to view the complete article.

Three critical factors for servo motor sizing

 

Configure online a Servo Motor, Gearbox and Encoder. Ships in 11 Days !

Configure and combine any DC servo motor (DCX, DC-max), gearbox (GPX) and encoder (ENX) according to your individual customized requirements using Maxon’s online platform.

The configured drive systems are built in 11 working days and ship directly from Switzerland to your location.

Detailed product data can be viewed online immediately and 3D data for the configuration is available for immediate download.

Tags:  maxon, DCX, Electromate,  brush motor, dc brushed motor, dc motor, gear, gearhead, gearheads, motion control, motors, motors & motion control, electric motor, encoder, GPX, ENX, DC-max

Understanding the Linear Shaft Servomotor

Nippon Pulse’s Linear Shaft Motor is a brushless, high-precision direct drive linear servo motor with a tubular design.  The motor consists of a magnetic shaft and coil assembly (forcer), and is driven and controlled by the flow of current.

The Linear Shaft Motor can replace ball-screws, pneumatics, U-shaped motors and other linear motion systems.

Design Concepts of the Linear Shaft Motor

  • Simple: Two parts and a non-critical air gap
  • Non-Contact: No wearing and maintenance free
  • High Precision: Ironless design and all the magnetic flux is used

Linear Shaft Motor Specification Overview

  • Variety of shaft diameters, ranging from 4mm to 100mm
  • Stroke lengths of 20mm to 4.6M
  • Achievable peak force of 2340N
  • Maximum continuous force of 585N

Advantages of Linear Shaft Motors

The Linear Shaft Motor is a simple, high-efficiency, high-precision motor that requires no maintenance over its lifetime.  The servo motor consists of only two parts: a magnetic shaft, and a “forcer” of wound coils.  The Linear Shaft Motor offers ultra-high precision because it has no iron in the forcer or shaft, giving you the precision and zero cogging expected in a coreless design while providing the stiffness expected in an iron-core motor.

Because the forcer coil completely wraps around the shaft’s internal magnets, all the motor’s magnetic flux is efficiently used. This allows for a 0.5mm to 2.5mm nominal annular air gap between the shaft and forcer.  This air gap is non-critical, meaning there is no variation in force as the gap changes over the stroke length of the device.

Nippon Pulse’s Linear Shaft Motor can be used in a variety of applications, including pick-and-place machines and dispensing machines.  Applications that require smooth, precise movements and high accuracy will benefit from the Linear Shaft Motor.  If your application has varying force requirements or low-power/high-efficiency requirements, contact an applications engineer to learn how your application can benefit from the Linear Shaft Motor servomotor.

Applications of the Linear Shaft Motor (LSM)

  • High-speed pick-and-place machines
  • High-accuracy pick-and-place or dispensing applications
  • Scanners that need smooth and precise movements
  • Long-life and low-maintenance expectations
  • Applications that require low power and high efficiency

More information on the Linear Shaft Motor Family from Nippon Pulse can be viewed at-

http://www.electromate.com/assets/catalog-library/pdfs/nippon-pulse/NPM_Linear_Shaft_Motor_catalog.pdf

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@electromate.com
Toll Free Phone:   877-737-8698
Toll Free Fax:       877-737-8699
www.electromate.com

Tags:  Nippon Pulse, Electromate, Linear Motor, Shaft Motor, Linear Shaft Motor, Servo Motor, Automation, DC Motor, Tubular Motor

Energy efficiency in microdrives, practical aspects

White Paper by Jan Braun, maxon motor ag, published January 2014

Low energy consumption.  Heat.  Power density. For microdrives in particular, these factors play an important role when energy-efficient operation is the goal.

Energy efficiency is an important factor not only in automotive applications, but also for many smaller sized motors.  Typical applications include battery-powered devices as well as aerospace applications.  The following are only a few examples: laser leveling devices, motorized golf caddies, medical power tools, insulin pumps, robots, packaging machines, and fuel cell powered vehicles.

With all these applications, it is critical to use available power as efficiently as possible.  This also means that only a minimal amount of power should be lost as heat.  The rise in temperature should be kept to a minimum…

Click on the link below to download this complete White Paper.

Jan Braun White Paper

Additional information and technical data is available by contacting sales@electromate.com.

For more on information on maxon, visit

http://www.electromate.com/products/?partner=1072297493

Tags:  maxon, maxon motors, Electromate, pancake motor, BLDC motor, brushless motor, servo motor, automation, DC motor

 

 

Free e-Learning modules from Maxon Motor

The maxon academy features several e-Learning modules to help deepen your knowledge on drive technology.  We recently introduced a series of How-to Videos that are easy-to-follow tutorials with specific information on topics from motor selection to gears, winding and motor type comparisons.  These short videos are perfect for busy engineers that need a quick review on the selection of high-precision drives and systems.

Additional information and technical data is available by contacting sales@electromate.com.

For more on information on maxon, visit

http://www.electromate.com/products/?partner=1072297493

Tags:  maxon, maxon motors, Electromate, pancake motor, BLDC motor, brushless motor, servo motor, automation, DC motor

Video: DC Motor Type Selection Based on Load Torque & Speed

5 minute YouTube Video

Dr. Urs Kafader, of maxon motor AG, provides a short 5 minute tutorial on DC brushless and brush motor type selection based on load torque & speed.


For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@electromate.com
Toll Free Phone:   877-737-8698
Toll Free Fax:       877-737-8699
www.electromate.com

maxon’s new line of dc brushless pancake motors

YouTube 2:44 minute video

Paul McGrath, Maxon USA Sales Engineer, discusses maxon’s new line of dc brushless pancake motors.  These motors feature external rotors and shafts and are available with or without Hall Sensors.  They are ideal for use in robotics applications.

Additional information and technical data is available by contacting sales@electromate.com.

For more on maxon, visit http://www.electromate.com/products/?partner=1072297493 .

Tags:  maxon, maxon motors, Electromate, pancake motor, BLDC motor, brushless motor, servo motor, automation, DC motor


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