Tech Briefs Magazine - October 2022 - MD-2
Sustaining
Shock Loads:
Sustaining
Low-Speed, High-Torque
Hydraulic Direct Drives
I
n significant industrial segments across the globe, there continues
to be major investment in large-scale equipment that
incorporates heavy-duty material movement and handling
systems. In mining applications such as bucket wheel excavators
and conveyors, to metal shredders in recycling operations,
as well as winch systems and drilling equipment in offshore
applications, powerful low-speed drives that can deliver high
torque and reliably function in rugged demanding environments
are in high demand.
There are several kinds of drive platforms that are suitable
for this. However, a growing number of operations
are finding that the hydraulic direct drive (HDD) provides
the performance these systems require. HDD systems offer
significant performance advantages for applications where
a heavy mass needs to be moved under variable speeds
using a system that can handle " shock loads " (sudden
increases in the weight and mass of loads being moved),
combined with the ability to deliver energy-efficient and
reliable performance - often operating 24 hours a day,
seven days a week.
2
Hydraulic Direct Drive Technology
The most common use of HDD systems is for industrial applications
moving heavy masses on a continuous basis with low
speed and high torque, and especially high starting torque for
operations with frequent stops and starts. The materials being
moved can be done at low speeds, typically in a range from
zero to 200 rotations per minute (RPMs).
These systems also perform well in applications where
" shock loading " occurs, where large heavy loads are
dropped onto moving conveyors, feeders, crushers or
turning drums, suddenly varying the load size by several
tons during normal operations. The drive must be able to
respond to the shock load without undue wear and tear on
drive components.
HDDs provide that performance because of their unique
design - most specifically because they are " direct drives " that
deliver the full energy of their operation to the shaft they are
driving. An HDD is a closed system with a low-speed hydraulic
motor at its heart. Able to sustain high torque even at minimum
speed, the hydraulic motor is mounted directly on the drive
Motion Design, October 2022
VanderWolf Images/Shutterstock.com
Tech Briefs Magazine - October 2022
Table of Contents for the Digital Edition of Tech Briefs Magazine - October 2022
Tech Briefs Magazine - October 2022 - Intro
Tech Briefs Magazine - October 2022 - Sponsor1
Tech Briefs Magazine - October 2022 - Cov1
Tech Briefs Magazine - October 2022 - Cov2
Tech Briefs Magazine - October 2022 - 1
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Tech Briefs Magazine - October 2022 - 30
Tech Briefs Magazine - October 2022 - Comsol-1A
Tech Briefs Magazine - October 2022 - Comsol-2A
Tech Briefs Magazine - October 2022 - Comsol-3A
Tech Briefs Magazine - October 2022 - Comsol-4A
Tech Briefs Magazine - October 2022 - Comsol-5A
Tech Briefs Magazine - October 2022 - Comsol-6A
Tech Briefs Magazine - October 2022 - Comsol-7A
Tech Briefs Magazine - October 2022 - Comsol-8A
Tech Briefs Magazine - October 2022 - Comsol-9A
Tech Briefs Magazine - October 2022 - Comsol-10A
Tech Briefs Magazine - October 2022 - Comsol-11A
Tech Briefs Magazine - October 2022 - Comsol-12A
Tech Briefs Magazine - October 2022 - Comsol-13A
Tech Briefs Magazine - October 2022 - Comsol-14A
Tech Briefs Magazine - October 2022 - Comsol-15A
Tech Briefs Magazine - October 2022 - Comsol-16A
Tech Briefs Magazine - October 2022 - Comsol-17A
Tech Briefs Magazine - October 2022 - Comsol-18A
Tech Briefs Magazine - October 2022 - Comsol-19A
Tech Briefs Magazine - October 2022 - Comsol-20A
Tech Briefs Magazine - October 2022 - Comsol-21A
Tech Briefs Magazine - October 2022 - Comsol-22A
Tech Briefs Magazine - October 2022 - Comsol-23A
Tech Briefs Magazine - October 2022 - Comsol-24A
Tech Briefs Magazine - October 2022 - Comsol-25A
Tech Briefs Magazine - October 2022 - Comsol-26A
Tech Briefs Magazine - October 2022 - Comsol-27A
Tech Briefs Magazine - October 2022 - Comsol-28A
Tech Briefs Magazine - October 2022 - Comsol-29A
Tech Briefs Magazine - October 2022 - Comsol-30A
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Tech Briefs Magazine - October 2022 - Comsol-31
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Tech Briefs Magazine - October 2022 - Comsol-59
Tech Briefs Magazine - October 2022 - Comsol-60
Tech Briefs Magazine - October 2022 - Comsol-Cov3
Tech Briefs Magazine - October 2022 - Comsol-Cov4
Tech Briefs Magazine - October 2022 - MD-Cov1
Tech Briefs Magazine - October 2022 - MD-Cov2
Tech Briefs Magazine - October 2022 - MD-1
Tech Briefs Magazine - October 2022 - MD-2
Tech Briefs Magazine - October 2022 - MD-3
Tech Briefs Magazine - October 2022 - MD-4
Tech Briefs Magazine - October 2022 - MD-5
Tech Briefs Magazine - October 2022 - MD-6
Tech Briefs Magazine - October 2022 - MD-6A
Tech Briefs Magazine - October 2022 - MD-6B
Tech Briefs Magazine - October 2022 - MD-6C
Tech Briefs Magazine - October 2022 - MD-6D
Tech Briefs Magazine - October 2022 - MD-7
Tech Briefs Magazine - October 2022 - MD-8
Tech Briefs Magazine - October 2022 - MD-9
Tech Briefs Magazine - October 2022 - MD-10
Tech Briefs Magazine - October 2022 - MD-11
Tech Briefs Magazine - October 2022 - MD-12
Tech Briefs Magazine - October 2022 - MD-13
Tech Briefs Magazine - October 2022 - MD-14
Tech Briefs Magazine - October 2022 - MD-15
Tech Briefs Magazine - October 2022 - MD-16
Tech Briefs Magazine - October 2022 - MD-17
Tech Briefs Magazine - October 2022 - MD-18
Tech Briefs Magazine - October 2022 - MD-19
Tech Briefs Magazine - October 2022 - MD-20
Tech Briefs Magazine - October 2022 - MD-21
Tech Briefs Magazine - October 2022 - MD-Cov4
Tech Briefs Magazine - October 2022 - Sensor-Cov1
Tech Briefs Magazine - October 2022 - Sensor-Cov2
Tech Briefs Magazine - October 2022 - Sensor-1
Tech Briefs Magazine - October 2022 - Sensor-2
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Tech Briefs Magazine - October 2022 - Sensor-11
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Tech Briefs Magazine - October 2022 - Sensor-14
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Tech Briefs Magazine - October 2022 - Sensor-29
Tech Briefs Magazine - October 2022 - Sensor-Cov4
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