117918780-Balancing-Fundamentals-Schenck.pdf

History of Balancing  The first patent for balancing technology was filed by Henry Martinson of Canada in 1870, four years after the development of the dynamo by iemens! "ear the turn of the century, #$i moff %&#' and todola %wit(erland' attempted to develop Martinson)s technology and apply it for industrial use! However, it was in 1*07 when a modified version of the technology was patented by +r! ran( -awac(e$, and offered to Carl chenc$, +armstadt, .ermany, for development! chenc$ built the first industrial two/plane balancer, and subseuently bought eclusive world r ights to the dynamic balancing machine in 1*12!

Through the years, craftsmanship and uality have been the hallmar$s of chenc$ products! Technology advancements gave way to improved sensitivity, freuency selectivity and plane separation capability! The development of electronics and mechanical3electrical transducers, greatly reduced balancing time and paved the way for modern balancing technology!

Today chenc$ balancing euipment is used with confidence f or a wide range of applications / from the smalles t rotors for dental drill instruments to the largest steam turbines in the world! 4ur precision balancing machines assure accurate, dependable rotor operation and are available in nearly any configuration for rotors weighing as much as 500,000 lbs!

Fundamental  s of of

Balancing 

Fundamentals of Balancing is designed to give those less interested in theory and design the practical s$ills to increase balancing efficiency and streamline production! Hands/on eercises will be used etensively to improve the operators techniue on both balancing machine and instrumentation!  #fter a brief overview of basic theory that includes the principles of machine operation, tolerance specifications and machine setup, students will be divided into small groups with those that have similar euipment and applications! ervice technicians and engineers will then supervise a number of eercises on machines and instruments that closely resemble the students) euipment!6

Other topics include:

 The different types of unbalance %static, dynamic  couple'!  94 tolerances and terminology!  9ndustry standard tolerances vs! drawing tolerances!  Machine  rotor setup!  9nstrumentation functions  operation!  Maimi(ing instrumentation features!  electing the best balancing speed!  How to avoid interference of measurements due to drive and roller harmonics!  :roper machine maintenance and troubleshooting! 6ince instruments and machines will be selected to closely represent the attendees) euipment, please specify balancer ma$e, model and instrument with application! Certification: -evel 9/ ;alancing 4perator  Who should attend: This course is intended for newly appointed balancing machine operators %up to $*55;?

;alancing Machines / Gnclosures and 4ther afety Measures  %identical

to

A2'1 '686-*596 >$*55;?

:rocedures for ;alancing leible Kotors %identical

A2'1 '6$*55;?

ield ;alancing Guipment / +escription and Gvaluation  %identical

A2'1 '6*5-*595 >$*55;?

Mechanical Bibration / ;alance Juality Keuirements of Kigid Kotors / :art 1,

94 772' to 94 205' to 94