Festo DYSD-Q11-12-12-Y1F-Y9 Handleiding

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DYSD

Shock absorber

Festo SE & Co. KG

Ruiter Straße 82

73734 Esslingen

Deutschland

+49 711 347-0

www.festo.com

Operating instructions

8168633

2022-02

[8168635]

Translation of the original instructions

© 2022 all rights reserved to Festo SE & Co. KG

1

Applicable documents

All available documents for the product

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www.festo.com/sp.

DocumentsProductContents

Operating instructionsSemi-rotary drive DRRD–

Tab. 1:

Applicable documents

2

Safety

2.1Safety instructions

–

Only use the product in its original condition without unauthorised modifica-

tions.

–Observe the identifications on the product.

–

Store the product in a cool, dry environment protected from UV and corrosion.

Keep storage times short.

–Repair of the product is not permitted.

–

Before working on the product, switch off the compressed air supply and lock it

to prevent it from being switched on again.

2.2Intended use

The product is intended for use in the pressure chamber for cushioning the force

with rotary moving masses in an axial direction.

2.3

Training of qualified personnel

Work on the product may only be carried out by qualified personnel who can eval-

uate the work and detect dangers. Personnel must have the relevant mechanical

training.

3Additional information

–Contact the regional Festo contact if you have technical problems

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www.festo.com.

–

Accessories and spare parts

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www.festo.com/catalogue.

4Product overview

4.1Product design

1235674

Fig. 1:

Product design

1

Piston rod

2

(Fixed) stop

3

Sealing washer

4

Disc

5

Lock nut

6

Male thread

7

Internal hexagon

The screw in the internal hexagon socket of the shock absorber must not be

loosened.

NOTICE

Tensile forces on the piston rod can seriously damage the shock absorber.

4.2Function

Insertion force F2 acting on the buffer moves the piston rod of the hydraulic shock

absorber through the cushioning length s to the fixed stop to the end position.

When the piston rod is retracted, the hydraulic fluid in the shock absorber flows

through a path-dependent flow control valve and cushions the motion.

If the insertion force is less than the reset force F1 of the internal compression

spring, the piston rod returns to the initial position.

F1Reset force

F2Insertion force

sStroke/cushioning distance

Tab. 2:Function

5

Mounting product

Lock nut mounting on one side

The mounting surface must not protrude beyond the thread area.

Tab. 3:Mounting in thread

1.

Screw in the product up to the intended stop position.

The order of installation of the washer and sealing washer must be followed

to guarantee a tight seal to the pressure chamber (lock nut, washer, sealing

washer).

Do not exceed the maximum torque when screwing or holding the internal

hexagon socket/slot.

2.

Tighten the lock nut to the tightening torque.

DYSD-...-5-7-8-12-16-20-25-32

Internal hexagon/slot

Max. torque[Nm]0.51.53612202550

Lock nut

Tightening torque[Nm]23520356080100

Tolerance ± 20%

Tab. 4:

Torques

5.1Aligning product

–Observe the axial direction of force of the moving mass to the axis of the shock

absorber.

–The mass must contact the piston rod and the fixed stop over a wide area.

Force direction, max. deviationAlignment of the mass

Tab. 5:

Permissible axial force direction and alignment of the moving mass

6Commissioning

6.1Executing test run

1.Start the test run at the drive at reduced velocity.

2.

If necessary, readjust the position of the shock absorber.

3.Gradually increase the velocity of the drive to the operating value in steps.

Ä

If set correctly, the end position is reached without a hard stop.

With hard stop:

–

Reduce the impact velocity if necessary.

–Check function and design of the shock absorber.

6.2Notes on operation

Energy absorption

•Only use the shock absorber within the permissible range of 25 % … 100 % of

the maximum energy absorption

è

10 Technical data.

Recommendation: use the shock absorber within the optimum range from

50 % … 80 % of the maximum energy absorption.

Product specificaties