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Southern Manufacturing & Electronics

Farnborough, Hants(GU14 6XL)

11/02/2020 - 13/02/2020

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

Industry 4.0 Summit

Manchester Central Convention Complex(M2 3GX)

31/03/2020 - 01/04/2020

The UK’s leading conference gathering of senior level executives from the UK manufacturing industry (more)

UKIVA Machine Vision Conference 2020

Marshall Arena, Milton Keynes(MK1 1ST)

14/05/2020

Vision solutions have been applied in almost any industry you can think of. Food, beverage, pharmaceutical, (more)

PPMA Show 2020

NEC, Birmingham(B40 1NT)

29/09/2020 - 01/10/2020

PPMA Show 2020 is the UK’s largest ever event dedicated to state-of-the-art processing and packaging (more)

Advanced Engineering 2020

NEC, Birmingham(B40 1NT)

04/11/2020 - 05/11/2020

The UK's largest annual advanced manufacturing trade show, Advanced Engineering is your opportunity to (more)

Phase shifting gearbox suits emergency drives

Phase shifting gearbox suits emergency drives

Vogel phase shifting gearboxes have a second input shaft which suits slow movement of the output shaft with low input power. This is used as an emergency drive in cases where the main drive fails. The in-built high ratio from the worm gear means that the required input torque is low and alternatives to electric motors can be used such as air motors or even hand winding.

Phase shifting gearboxes, also known as speed superimposition gearboxes, are basically a planetary gearbox with one difference in that the outer toothed ring can be rotated through a worm drive. Often this is used to adjust the phase between input and output, or for speed super-imposition by applying continuous rotation of the worm gear. When the gearbox input is stopped, perhaps due to a power failure, input of the worm gear gives slow rotation of the output shaft.

Vogel phase shifting gearboxes are available for output torques in the range 15 to 1500Nm. Ratios from input to output for the main drives are 1, 2 or 3, whilst the ratios for the worm gear input range from 40 to 138. These gearboxes are available in the UK through Techdrives.

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