Special Coverage

Soft Robot “Walks” on Any Terrain
Defense Advanced Research Projects Agency
Using Microwaves to Produce High-Quality Graphene
Transducer-Actuator Systems for On-Machine Measurements and Automatic Part Alignment
Wide-Area Surveillance Using HD LWIR Uncooled Sensors
Heavy Lift Wing in Ground (WIG) Cargo Flying Boat
Technique Provides Security for Multi-Robot Systems
Bringing New Vision to Laser Material Processing Systems
NASA Tests Lasers’ Ability to Transmit Data from Space
Converting from Hydraulic Cylinders to Electric Actuators
Automating Optimization and Design Tasks Across Disciplines

Piston Pump

HAWE Hydraulics (Charlotte, NC) offers the V40M axial piston pump for open circuits in mobile machines. It has a displacement volume of 2.75 in3/rev, and its swash plate design allows for fine-tuning of the flow rate. With a self-priming speed of 2,900 rpm, it is suitable for applications that require operating pressures up to 3,625 psi, but can handle pressure spikes up to 4,600 psi. The pump is connected to the PTO or directly to the motor by an SAE-B flange. It is available with load-sensing and electric proportional controllers. Options include a thru-shaft with radial suction and pressure ports for mounting additional variable displacement pumps or auxiliary pumps. The pump has a length of 8.2", making it suitable for applications where a tandem pump is needed.

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Integrated Drives and Motors

Applied Motion Products (Watsonville, CA) has introduced the SWM24 IP65-rated integrated drives and motors. The system fuses a motion controller to a high-torque NEMA24 step motor. The entire package is engineered to resist the ingress of water and dust to IP65 standards. All connectors are sealed M12 style. All models provide 340 ounce inches of holding torque, and are available with Ethernet or RS-232 communication. They include a 4000 count/rev optical encoder to provide closed features including stall detection, position verification, position maintenance, and stall prevention algorithm. Other features include auto-tuned digital current control and high-resolution microstepping engine. The S and SF models can be used in step direction or velocity control applications; the Q and QF models include stored programming capability.

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Gear Drives and Motors

Boston Gear and Bauer Gear Motor, Altra Industrial Motion companies (South Beloit, IL) announced the addition of inline models to the Series 2000 right angle helical gear drives and gearmotors. The Boston Gear Series 2000 C-face gear drives feature mounting registers for flexible installation. A front mounting face and field-installable output flange are provided. Models feature large output shaft diameters, and are available with a torque range up to 39,000 in.lb. (4400 Nm). Units feature rounded housing surfaces, acrylic paint pigmented with 316 stainless steel flake for high corrosion and abrasion resistance, and integrated O-rings for leak and ingress resistance.

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Encoder

Dynapar (Gurnee, IL) has announced the SLIM Tach ST56 encoder, a magnetic digital tachometer that provides position and velocity feedback from electric motors in both industrial and harshduty environments. The encoder also comes with a diagnostic LED to provide visual status of encoder functionality. The encoder features a 3/4" profile and 9.8" height, a bearingless design that mounts to 56 and 140 C-face motors, and an anodized aluminum housing with a field-serviceable connector available in single or dual output options.

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Linear Position Sensors

Vented versions of the CD 375 Series of miniature AC-operated LVDT position sensors are available from Macro Sensors (Pennsauken, NJ). The sensors withstand high pressures and temperatures in applications where space is at a premium and the environment is hostile. As the coil assembly of the sensor is vented to equalize pressure inside and outside the LVDT linear position sensor, units can withstand a combination of high pressure and temperatures, shock, and vibration. Since vent holes in the housing expose the coils inside, fluid must be electrically nonconductive and chemically benign.

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Spring-Engaged Brakes

Nexen Group (Vadnais Heights, MN) has introduced the FMBS flange-mounted, spring-engaged safety brakes with high thermal capacity for NEMA C-Face motors and gear reducers. With continuous thermal dissipation, the brakes are able to stop more kinetic energy without overheating. The brakes are available in two models that provide torque from 1080 in-lbs to 1800 in-lbs, and burnished torque from 1300 in-lbs up to 2160 in-lbs, with release pressures of 55 psi and 90 psi and a maximum pressure of 120 psi. Both models feature a top speed of 1800 rpms and zero backlash input.

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Servo Drives

Technosoft (Neuchatel, Switzerland) has announced the iPOS3602 BX-CAN and iPOS3604 BXCAN closed-frame intelligent drives. Equipped with a CAN interface, the drives control rotary or linear brushless, DC brush, and step motors of powers up to 144W and 36V nominal voltage. They drive 2 A or 4 A continuous currents, and 3.2 A or 10 A peak currents at a supply voltage ranging from 12 to 36 Vdc, with a PWM of 20 kHz frequency. The servo drives offer single- or multiple-axis control functions such as master-slave or standalone operations. They embed motion controller, drive, and PLC functionality in one unit.

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Electronic Valves

Clippard Instrument Laboratory (Cincinnati, OH) has introduced the Analytical Series electronic valves available in 2-way or 3-way, normally closed or fully ported. The “A-E” Series pneumatic valves utilize a patented valve system that features power consumption of 0.67 Watts, a response time of 5 to 10 milliseconds, and voltages of 6, 12, or 24 VDC. Special materials, manufacturing, and assembly processes enable the valve to be used for applications where internal cleanliness, bubbletight operation, and long life are required.

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Dispensing Pump

Aalborg® Instruments (Orangeburg, NY) offers the TPV RP dispensing peristaltic pumps with adjustable RPM that can be timer-relay set to start dispensing liquids for a selected time period, and to stop dispensing for another selected time period. Seven time intervals are possible. Easily accessible controls enable priming, dynamic braking, RPM setting, and flow direction reversing. The adjustable pump handle serves as a base to lift and angle the pump face, and ensures that the controls are accessible. Designed to pump liquids of low to high viscosity from source to destination, the pump can accommodate user-set speeds of 0 to 300 RPM with a flow range of 0-5000 ml/min. Features include 3 stainless steel rollers and stainless steel shafts, fixed occlusion wall, 24 VDC brushless motor, and a safety cover.

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Linear Guide Systems Streamline Aircraft Seat Assembly and Operation

Linear guide rails are an important component within aircraft interiors. Following are some of the places where they are used:

• For seat adjustments — forward and back seat movements, footrests, sliding armrests, and tables.
• Rails enable 180° positioning for super first class seats that flatten for sleeping.
• Sliding privacy screens between passengers.
• Kitchen slide-outs, such as garbage compactors.
• Sliding lavatory doors.

Posted in: Articles, Motion Control, Seats and seating, Seats and seating, Assembling, Aircraft
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