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Robots, manipulators, industrial
assemblies, ball valves and butterfly
valves needs stiff mechanisms with slow,
definite rotation-oscillation and high
efficiency.
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Today
rotating-oscillating movement is primarily
driven using motors with paddle and toothed
rack.
Making
use of the polygon processing the axial
movement of the hydraulic or pneumatic
piston is converted directly into rotating
motion by the spiral shaped, polygon
profiled shaft-piston binding.
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POLYROTH rotating cylinder
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There is a need only
for 3 main units for the direct conversion:
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- even shaped,
polygon porfile house
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- a piston having a
polygon profiled mantle and a spriral
shaped, polygon profiled drill hole
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- spiral shaped,
polygon profiled shaft.
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Advantages compared to the
well-known rotating cylinders: |
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- simple structure |
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- safe sealing
because of the harmonious polygon
profiles |
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- rotation over 360°
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- self-locking |
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- clearance-free
solution |
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- wide-range
operational parameteres |
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- possibility to
built it into multi-shaft
manipulator |
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Ball valves driven by rotating cylinder |
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The rotating
cylinder family has been developed in the
rotation zone 0-360˚ but bigger rotation
anger is possible if desired.
Polygon shaft of the rotating cylinder
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Thanks to the compactivness of the rotating
cylinders they can be used in road and
railway vehicles. They can be built in as
high-power motors of windscreen wipers and
door operationg cyilnders.
The door operating cylinder works in two
phases. First it lifts then opens the door. |
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Assembled
it on a gate valve,
the
rotating cylinder – inserting a variable
directioanal overrunning – operates a
precision stirring gate valve.
Depending on how the polygon profile is
designed, self-locking cylinder can also be
produced which mechanically fixes the shaft
without further power consumption.
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