Terms And Abbreviations - EMG ELDRO Ed 12/4 Assembly Manual

1 General
1.8

Terms and abbreviations

1.8 Terms and abbreviations
Table 2: Terms and abbreviations
Term/abbreviation
Brake spring
Damping spring (d spring)
ELDRO thruster
®
Highest value for additional
load
Lifting valve H
Lifting and lowering valve HS
Lifting time
Nominal operating point
Nominal lift
Nominal reset force
Nominal actuating force
Regulation braking
Regulation spring
Reset spring c
Lowering valve S
Lowering time
10 / 83
The following terms and abbreviations are used in the maintenance
manual.
Cylindrical pressure spring that counteracts the hydraulic force. As a
result, only the force difference on the lifting rod is effective as the
actuating force.
Spring for gentle braking. This reduces the braking force by applying the
brake shoes continuously until the stop value is reached. When bleeding
the brake, the braking force reduces continuously from the highest value
to zero (releasing the brake shoes).
Electro-hydraulic lifting thruster that converts electrical energy into
mechanical energy in a straight line movement by hydraulic means
Total of the forces that apply to the lifting rod head and that affect the
lifting movement and setting time, e.g. friction and mass of the connection
elements
Valve to reduce the lifting speed
Valves to reduce the lifting and lowering speeds
Time from switching the motor on until the top piston limit position is
reached
Operating point that is at 1/3 of the nominal lift
Maximum path that the extending lifting rod can take
Minimum force at the nominal operating point for a machine with reset
spring c
Usable hydraulic force on the lifting rod head for a machine without reset
spring c
Braking to regulate three-phase motors to low speeds, virtually
independent of the load. A pump wheel with optimum adjustment
determines the hydraulic force with the nominal reset force. Thrusters for
regulation braking are equipped with reset spring c and damping spring d.
See damping spring
See brake spring
Valve to reduce the lowering speed
Time from switching the motor off until the bottom piston limit position is
reached.
Meaning
ELDRO-Assembly-manual-344029-EN.docx