Traction drives leverage engineered fluids
Rolling Motion Industries (RMI) has released two high-efficiency traction drives: the MAR-17-1-2.1 (speeds to 3,600 rpm with 10 to 20 in./lb of torque) and MAR-23-1-2.1 (3,600 rpm with 20 to 30 in./lb of torque). These one-way traction drives have only six moving parts and use an engineered traction fluid with a coefficient of friction of just 0.1 to 0.12. These traction drives typically last three times longer than conventional gearboxes, and with no metal-to-metal contact they generate up to 72 percent less heat after 24 hr of continuous operation. Additionally, they create up to 38 percent lower dB at 3,000 rpm than conventional gearboxes (less than a home refrigerator). Applications include: pumps, blowers, fans, turbo and superchargers, conveyers, HVAC systems, and medical -- anything that rotates.
First explosion-proof stackable multi-turn encoder
Sensata Technologies has introduced the first explosion-proof stackable multi-turn encoder, an ideal position sensing solution for oil and gas applications such as drawworks, top drives, and pipe-handling equipment where working conditions are extreme. The new encoder, BEI Sensors' model MAAX, is ATEX and IECEx certified to operate in explosive environments and features a Profibus output in a unique, stackable package. CANopen and SSI outputs are also available. The MAAX provides up to 16 bits of resolution as well as up to 16 bits of turns by mechanical counting. This workhorse product operates directly in Zone 1 environments without the need for an accompanying Intrinsic Safety barrier.
QTR Series torque motors by Tecnotion
With Tecnotion torque motors, the magnetic design is optimized for maximum flux density and copper fill to provide very high torque-to-volume ratios. Motor sizes from 68-mm to 160-mm diameters are available, packing serious power to work with any servo drives on the market. Tecnotion torque motors are extremely compact, provide a very stiff drive train, eliminate the need for time-consuming mounting procedures, are virtually maintenance free, and can be integrated directly into the machine structure, while the spacious open inner diameter enables wire and cable feedthrough. The entire series comes with completely sealed stators and integrated temperature protection and measurement sensors.
160 pages of piezo linear motors, rotation stages, and multi-axis motion systems
PI's new comprehensive piezo motor solutions catalog covers a large number of linear, rotary, and multi-axis motion systems based on a variety of piezo motor types along with their appropriate controllers and drivers. Ultrasonic piezo motors, for example, are preferred for high-speed applications; inertia motors are small and cost efficient; PiezoWalk drives provide the highest forces up to 800N; and piezo-ratchet drives can replace micrometers in remote "set and forget" applications. All piezoelectric motors are self-locking, field-less, and not affected by magnetic fields, and they can be integrated easily mechanically.
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Watch different types of piezo motors in action.
Learn about different kinds of piezo motors products.
Electromechanical actuators with modular design
SKF CASM-100 electro-mechanical actuators from SKF Motion Technologies have been uniquely engineered with a modular design, enabling tailored solutions for a wide range of industrial linear movement and positioning applications. Modules provide choices among motor types, gearboxes, ball screws or roller screws, and accessories. Standardized interfaces connect the different components. These actuators use up to 80 percent less energy than pneumatic cylinders and 50 percent less energy than hydraulic alternatives and eliminate any need for constantly running compressors, hoses, and other components.
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Precision linear motion drive with thrust capacity to 800 lb
The Precision Motion Drive System from Amacoil/Uhing is a Uhing Model RG rolling ring linear drive integrated with a motion controller for precision linear motion applications. The Precision Motion Drive is fully programmable and meets application requirements for precision winding/spooling, pick-and-place machines, X-Y coordinate tool movement, metrology equipment, and other machinery providing fast, accurate positioning and reciprocating linear motion. Depending on the size of the RG drive nut in the system, the Precision Motion Drive System provides from 7 to 800 lb of axial thrust.
100 million random moves: New lifetime spec for rotary micro stage with integral controller
New Scale Technologies has significantly increased the lifetime specification for its M3-RS-U Rotary Smart Stage, a precision rotary micro stage with embedded controller. The new specification of 100 million random positions underscores the utility of these compact, all-in-one motion modules for integrating embedded motion inside medical, commercial, and industrial instruments. These rotary stages are ideal for beam steering and mirror positioning applications where precise, point-to-point positioning or dynamic scanning up to 100 Hz is needed. Applications include medical instruments such as surgical lasers and fluorescence microscopes, industrial systems for 3D measurements and remote sensing, optical communications systems, and obstacle detection and tracking systems for robots and drones (UAVs).
New UR e-Series cobots feature unique sensing, safety, and precision tools
Universal Robots pioneered the collaborative robot and continues to evolve its ground-breaking, automation technology with the introduction of its new flagship line of e-Series cobots. The new UR3e, UR5e, and UR10e robot arms will launch in North America at IMTS in Chicago, Sept. 10-15, at Universal Robots' IMTS booth N-236861. With a new built-in, tool-centric force/torque sensor, the e-Series is ready to take on popular collaborative robot applications that require force control right out of the box such as sanding, buffing, polishing, and deburring, where force-feedback is paramount in order to obtain uniform results. Additionally, the force/torque sensor can be used to measure mass and perform inspection processes or precisely detect contact.
What design engineers need to know about voice coil actuator technology
Looking to develop a product that requires highly reliable, highly repeatable, and highly controllable motions? Take a look at voice coil actuator technology. VCAs are very simple yet extremely robust and precise. Sensata Technologies has published a new white paper (What Design Engineers Need to Know about VCA Technology) that covers the current state of Voice Coil Technologies for a variety of linear motion applications. Good info here.
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US Digital releases new MD3 microstepping motor driver
The MD3 Programmable Microstepping Motor Driver is capable of driving motors from NEMA size 14 to 42. The MD3 accepts 9 to 50 VDC power inputs and is rated for currents up to 7A continuous duty. In addition to digital input controls, the MD3 can be configured and controlled using the open MODBUS RTU protocol over a RS485 bus. A GUI application is supplied that allows many settings to be changed including the number of microsteps per full step, acceleration/deceleration rates, speed, and current cutback.
New power-off brakes for parking brake applications
The MPC is a power-off brake module with an output shaft. The unit mounts directly onto a NEMA C-Face servo or stepper motor, and the output can also be coupled to a NEMA C-Face gear reducer. This brake is designed to decelerate or hold an inertial load when the voltage is turned off. When voltage is applied, the friction disc is released, and the brake is free of torque. This power-off brake is best suited for parking brake applications used to hold a load in position, and is ideal for creating brake motor packages for small servo and stepper NEMA 17 or NEMA 23 frame motors. Available from Servo2Go.
New planetary BLDC gearmotors: High torque and compact design
Bodine Electric Company introduces the new type 22B4-60P planetary gearmotor. This integral gearmotor combines Bodine's high-performance type 22B brushless DC motor with the new 60P (60-mm) planetary gearhead. It is ideal for applications that require higher torque than conventional helical/spur gearheads of a similar size can provide, and where a very low backlash gearhead is not required. Typical applications include conveyors, pumps, packaging, industrial automation, and a wide range of solar- or battery-powered equipment.
Compact brushless DC servo motor with integrated controller
Nanotec has developed the compact PD2-C-IP, a brushless DC servo motor with integrated controller and 42-mm flange size for use in harsh environmental conditions (class IP65). The PD2-C-IP is available as a brushless DC motor, with an operating voltage of 12 V to 48 V and a rated power of 105 W, and as a stepper motor with a nominal torque up to 0.5 Nm. Due to the field-oriented control based on an integrated encoder, both motors are controlled in the same way and differ only in their working point. Each motor is available in a USB or CANopen version. They offer effective and economical drive solutions when high precision and maximum benefit are required.
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DriveWare 7.4.2 released with stepper motor support
DriveWare is ADVANCED Motion Controls' no-cost software tool that allows users to set drive limits, tune the control loops, configure various types of feedback, auto-commutate, analyze signals over a built-in multi-channel oscilloscope, and more. Because of its powerful capabilities and user-friendly interface, DriveWare is the best way to commission and configure the company's DigiFlex Performance series drives. The biggest update to DriveWare 7.4.2 is the expanded support for stepper motors -- making it easy to configure closed-loop steppers while streamlined algorithms make autocommutation 75% faster. DigiFlex Performance servo drives can operate two-phase and three-phase steppers in addition to rotary and linear permanent magnet, brushed, and brushless servo motors.
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Plug-and-play motion system in a box
Rollon Corp. has launched Motion Box, a new pre-engineered Cartesian robot system designed to deliver users six different motion profiles that can be set up and running in a couple of hours. Motion Box covers everything from the human-machine interface (HMI) to the output of reliable motion. Even the cable management is included. The initial system setup is already complete, so end users can get parts moving in a reliable and repeatable manner. Motion Box incorporates the Q-Motion Controller from Mitsubishi Electric, which features four-axis motion control, energy-efficient drivers, integrated I/O and network access, and a clean, efficient HMI setup.
Preparing for future battlefields: Army lays out must-have capabilities for its Next Generation Combat Vehicle
An M2A3 Bradley Fighting Vehicle crew changes position on the range during gunnery training at the Doña Ana Range Complex, N.M., Aug. 3, 2018. The Army is developing a new Next Generation Combat Vehicle as part of a concerted modernization strategy. [Photo Credit: U.S. Army photo by Winifred Brown]
By Bob Purtiman, U.S. Army NGCV Cross-Functional Team
While our current combat fleet is composed of very capable vehicles, these vehicles have been in the inventory for decades and their ability to overmatch peer capabilities in close combat is starting to wane. As the Army prepares for future combat operations, it needs new platforms, with future growth margins, to maintain our ability to dominate the battlefield.
This is a challenge for the Next Generation Combat Vehicle Cross-Functional Team, or NGCV CFT, to solve. The NGCV CFT was established as part of the Army's modernization strategy and is currently led by Brig. Gen. Ross Coffman. The team consists of hand-selected military and civilian personnel, who are charged with narrowing or closing Cross Domain Maneuver capability gaps.
The team is well supported by Program Executive Office-Ground Combat Systems and Research, Development and Engineering Command leaders, and representatives. The CFT serves as the primary Army integrator for Under Secretary of the Army/Vice Chief of Staff of the Army and Army Requirements Oversight Council decision for all supporting analysis, modeling, simulation, and technical demonstrations. The NGCV CFT director, on behalf of the USA/VCSA, synchronizes the capability development process, and then rapidly transitions the requirement to a leader-approved capability into the Army Acquisition System.
"The Army must maintain combat vehicle overmatch in close combat against current threats while taking actions necessary to ensure overmatch through 2050 and beyond," said Coffman. "The changing character of warfare and the acceleration of technology development drives changes in how the Army develops, delivers, employs, and sustains mounted close combat capabilities."
The ongoing efforts of the Next Generation Combat Vehicle Cross-Functional Team will be the focus of a Warrior's Corner presentation on Tuesday, Oct. 9 from 9:30-10:10 a.m. Eastern time as part of the Association of the United States Army annual meeting in Washington, D.C.
The current NGCV CFT portfolio encompasses the Armored Multi-Purpose Vehicle, or AMPV; Mobile Protected Firepower, or MPF; Optionally Manned Fighting Vehicle, or OMFV; future robotic combat vehicles, or RCV; and the next generation main battle tank.
The AMPV and MPF are well on their way through the acquisitions process -- the AMPV is in Limited User Tests, and the Joint Requirements Oversight Council has recently approved the MPF's Capabilities Development Document. The team's current focus in on the OMFV, which will replace the Bradley Fighting Vehicle, while also overseeing the maturation of robotic combat vehicle and main battle tank technologies.
In future close combat formations, units equipped with NGCV must maneuver effectively in unrestricted, restricted, and dense urban terrain. The NGCV-OMFV will be designed to maneuver Soldiers in the future operating environment to a position of advantage to engage in close combat and deliver decisive lethality during the execution of combined arms maneuver. NGCV must exceed current capabilities while overmatching similar threat class systems. It must have the following capabilities:
- Optionally manned. It must have the ability to conduct remotely controlled operations while the crew is off platform.
- Capacity. It should eventually operate with no more than two crewmen and possess sufficient volume under armor to carry at least six Soldiers.
- Transportability. Two OMFVs should be transportable by one C-17 and be ready for combat within 15 minutes.
- Dense urban terrain operations and mobility. Platforms should include the ability to super elevate weapons and simultaneously engage threats using main gun and an independent weapons system.
- Protection. It must possess requisite protection to survive on the contemporary and future battlefield.
- Growth. It will possess sufficient size, weight, architecture, power, and cooling for automotive and electrical purposes to meet all platform needs and allow for pre-planned product improvements.
- Lethality. It should apply immediate, precise, and decisively lethal extended-range medium-caliber, directed-energy, and missile fires in day/night all-weather conditions, while moving and/or stationary against moving and/or stationary targets. The platform should allow for mounted, dismount, and unmanned system target handover.
- Embedded Platform Training. It should have embedded training systems that have interoperability with the Synthetic Training Environment.
- Sustainability. Industry should demonstrate innovations that achieve breakthroughs in power generation and management to achieve increased operational range and fuel efficiency; increased silent watch; part and component reliability; and significantly reduced sustainment burden.
The CFT will ensure the Army operating force is equipped with Next Generation Combat Vehicles that overmatch pacing threats with decisive lethality, survivability, tactical mobility, and reduced logistical burdens. These vehicles, when combined with trained and technology-enabled crews, are essential to the Army's future battlefield success.
"The NGCV effort ties in with the efforts of other CFTs: Soldier Lethality, Network, Assured Positioning, Navigation, and Timing, Future Vertical Lift, and Long-Range Precision Fires," said Col. Warren Sponsler, NGCV CFT deputy director. "The future platform has capabilities which are enabled by assured position, navigation and timing, and resilient networks that will enable future maneuver formations to execute semi-independent operations while conducting cross-domain maneuver against a peer adversary.
"The future operational environment will be increasingly lethal, competitive, complex, and dynamic -- characterized by a high potential for instability and the increased likelihood of close combat in dense urban and congested terrain," Sponsler added. "Our potential adversaries have studied the American way of war and our preference for engaging at extended ranges with greater accuracy. Accordingly, they are developing, and will employ, close combat platforms and weapon systems capable of engaging U.S. formations at equal or greater ranges and with direct fire accuracy equal to our own, coupled with accurate and massive artillery and rocket firepower."
The challenge for the NGCV CFT is to create the requirement that will keep with the junction of instability and disruptive technology that will erode the Army's post-Cold War comparative advantage.
"The end state for the Army is a generation of vehicles that are not only more lethal and survivable than current combat platforms but much smaller, lighter, and more fuel efficient," said Coffman. "The use of critical enabling and potentially disruptive technologies that are identified, developed, and integrated into operationally viable platform subsystems will enable the Army to provide Soldiers the best possible capability for the future."
Published October 2018
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