Product category:
Stepper and Servo Drives, Motors, Controls
News Release from: Danaher Motion | Subject: TitanTrue
Edited by the Engineeringtalk Editorial
Team on 27 February 2002
Compact brushless gearmotors for lots of
torque
The TitanTrue line of brushless gearmotors from Thomson Micron boasts a high-efficiency high-torque-output brushless servo design that is compact yet modular.
The TitanTrue line of brushless gearmotors from Thomson Micron boasts a high-efficiency high-torque-output brushless servo design that is compact yet modular Key performance and envelope specifications include continuous torque ratings up to 7, 14 and 28Nm for 60, 90 and 115mm frame sises, respectively, each with 5:1 reduction
This article was originally published on Engineeringtalk on 17 May 2000 at 8.00am (UK)
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Space-saving lengths are as small as 128mm for a 60 mm frame sise (including single-stage gearing, short-stack motor and commutating encoder).
TitanTrue gearmotors allow customised selection of four basic power transmission components: gearhead, motor, brake and feedback device.
The true planetary gearhead features a keyed stainless-steel one-piece output shaft/cage assembly with standard metric (sises 60, 90 and 115), or inch (NEMA sises 23, 34 and 42) pilot and mounting interfaces that allow quick, standardised mounting.
The design includes a dual deep-groove ball bearing system for maximum allowable shaft loading and prolonged life.
Hardened precision planetary gearing (HRC55-60) provides the benefits of high torque, low-noise, high efficiency, load sharing, and lube-recirculation.
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Standard ratios include nine different reductions ranging from 3:1 through 100:1 (other ratios available on request).
The CE rated brushless servomotor features a rare-earth samarium-cobalt magnet design, rather than the more common neodibnium magnet design.
The enhanced magnets minimise the natural degradation of torque output that occurs as the temperature rises during continued operation, as well as generate among the highest torque output per unit of volume available.
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The rotor has an eight-pole design on the smaller sises and a 12-pole design on the larger sises for smooth output.
Stator end turns are protected with special materials to eliminate potential output losses.
The stator also features an embedded NTC thermistor for monitoring purposes, while the design allows for a temperature rise up to 155C.
The motor is available in three stack lengths.
The optional emergency brake generates a holding torque, which rivals the continuous torque supplied by the motor and is essential in applications with vertical axis loading, or those where safety and equipment concerns are prevalent.
These spring-set electromagnetic components are configured for power-off braking with rapid response rates.
A unique and innovative 'extreme torque' braking material is also available which further increases holding torque approximately threefold.
A commutating, incremental encoder provides positional and velocity feedback for the TitanTrue Gearmotor.
The optical encoder has a standard 1000 line per rev resolution with 3-channel (A, B and index) quadrature output.
The digital output signal is TTL compatible, and includes a line driver that boosts signal strength and increases immunity to noise over long cable lengths.
It is assembled with an integral PC board, which generates simulated Hall-effect signals to initiate winding recognition for the motor.
For applications where environmental extremes are typical (ie temperature, vibration, shock, humidity, radiation), the TitanTrue gearmotor is optionally equipped with a hearty high-accuracy resolver with analogue output.
The TitanTrue gearmotor was designed with a modular, segmented extrusion.
This feature allows for rapid delivery of customised assemblies from Thomson Micron.
Even with its segmented design, TitanTrue provides an enclosure that is well protected from contaminants.
Through the use of bearing seals, gaskets and O-rings, the enclosure provides IP64 and NEMA-13 protection on standard models.
The TitanTrue was also engineered to be economical and to maximise compactness and ease of use.
Full integration and innovative assembly techniques have resulted in some of the shortest gearmotor assemblies available when compared with similar models.
The durable 'military style' (MS) connectors have been specified to allow for quick and easy integration to the cables and AXI-PAK/Omnidrive controllers currently supplied by Thomson Industries.
Optionally, the gearmotors are capable of being integrated with drives provided by other manufacturers.
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