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Gearboxes for flap and radial gate winch

30 June 2016
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These speed reducers are a replacement and improvement of the old installation. This project shows the BCSA GEAR ability to answer specifics and demanding requests in terms of size, needs matching or installation.

Those different machines have shoe brakes, chain reels, holding tanks, many sensors allowing to prevent risks from overload, chain slackness and position sensors as well.

These gearboxes according to their environment have to be water resistant, consequently we find on those machines watertight casings, stainless steel chains greased by pulverization and also matching paints.

 

Flap gate winch speed reducer assembly

1

 

  • Power: 3.9 kW
  • Input speed: 950 rpm
  • Output speed: 0.157 rpm
  • Gear ratio: 1/6,069
  • Low speed torque: 72,617 N.m

 

 

Radial gate winch speed reducer assembly

2

 

  • Power: 3.9 kW
  • Input speed: 940 rpm
  • Output speed: 0.295 rpm
  • Gear ratio: 1/3,200
  • Low speed torque: 38,619 N.m

 

 

Embedded planetary gear speed reducer AS80 28,000 rpm

28 June 2016
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Speed reducer designed for the train industry with many constraints such as vibrations, noise, size or efficiency.

A part of those constraints are due to the fact that this gearbox is embedded to a moving system.

Technically the AS80 is a speed reducer with an epicyclic gear and an aluminium casing. It allows a reduction of 1/5.86 with a high nominal input speed (24,000 rpm).
The reducer allows overspeed up to 28,000rpm.

Power: 210kW
Maximum torque: 200mn@10,000rpm

Helicopter transmission gearbox test bench

21 June 2016
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1
  • Mechnical close loop test bench
  • Hydraulic loading device
  • Multipurpose test bench, capable of testing different types of MGB by changing adaptor gearbox
  • Helicopter main gearbox installation in less than 2 hours

 

MGB LS Shaft

Max Speed : 450 rpm

Max Torque : 191 000 Nm

Main rotor shaft loading

Vertical upward thrust : 120 000 N

Shear load : 15 000 N

Bending moment : 25 000 N