Festo DYSD-Q11-12-12-Y1F-Y9 Handleiding
Festo
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DYSD-Q11-12-12-Y1F-Y9
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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
è
www.festo.com/sp.
Documents Product Contents
Operating instructions Semi-rotary drive DRRD –
Tab. 1:
Applicable documents
2
Safety
2.1 Safety 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.
2.2 Intended 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.
3 Additional information
–Contact the regional Festo contact if you have technical problems
è
www.festo.com.
–
Accessories and spare parts
è
www.festo.com/catalogue.
4 Product overview
4.1 Product design
1 2 3 5 6 74
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.
4.2 Function
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.
F1 Reset force
F2 Insertion force
s Stroke/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] 0.5 1.5 3 6 12 20 25 50
Lock nut
Tightening torque [Nm] 2 3 5 20 35 60 80 100
Tolerance ± 20%
Tab. 4:
Torques
5.1 Aligning 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. deviation Alignment of the mass
Tab. 5:
Permissible axial force direction and alignment of the moving mass
6 Commissioning
6.1 Executing 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.
6.2 Notes 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.
Energy absorption Note
0 … 25 % Unfavourable; fluid leakage at the shock absorber may be
increased
25 … 50 % Permitted
50 … 80 % Optimal
80 … 100 % Permitted
> 100 % Impermissible
Tab. 6: Energy absorption of the shock absorber
Cushioning effect
The viscosity of the hydraulic fluid decreases over its operating life due to the
generated friction heat. This can reduce the cushioning effect.
7
Maintenance
Maintenance interval Maintenance work
Every 2 million load changes Check shock absorber:
–sealing, no fluid leakage
–fixed stop, no deformation
–Cushioning distance s
è
10 Technical data
In case of leakage, hard stop or cushioning distance too short:
replace shock absorber.
Tab. 7: Maintenance schedule
The hydraulic fluid in the shock absorber cannot be topped up or changed.
8 Fault clearance
Malfunction Possible cause Remedy
Leakage/fluid leakage Shock absorber faulty Replace shock absorber.
Hard stop in the end position Shock absorber overloaded Reduce impact velocity or
check the layout of the shock
absorber.
Shock absorber faulty Replace shock absorber.
Tab. 8: Fault clearance
9
Disposal
CAUTION
The product contains pressurised hydraulic fluid that can escape in an uncon-
trolled manner if the housing is damaged.
The hydraulic fluid can injure people's eyes and skin and damage the environ-
ment.
• Have the product disposed of by a qualified waste disposal company.
• Do not destroy the product in order to drain the hydraulic fluid.
10 Technical data
DYSD-... -5 -7 -8 -12
Stroke/cushioning distance s [mm] 5 5 8 12
Male thread M8x1 M10x1 M12x1 M16x1
Mode of operation Single-acting, pushing
Cushioning Self-adjusting
Mounting position any
Max. energy absorption per
hour at +20 °C
1)
[kJ] 8 12 18 36
Impact velocity [m/s] 0.1 1.0…
Min. insertion force F
2
[N] 27 40 60 100
Max. stop force
at end position
[N] 200 300 500 1000
Min. reset force F
1
[N] 7 12 18 28
Reset time at +20 °C
2)
[s] 0.2£
Ambient temperature [°C] 0 +60…
Max. energy absorption per stroke at +20 °C
1)
Y9 [J] 2 3 6 10
Y10 [J] – – – 12
Y14 [J] – 4 4 8
1)
At a temperature of 80 °C the maximum mass and energy absorption must be reduced by approximately³
50 %.
2) At temperatures below 0 °C the reset time can increase to 1 s. The reset time may increase during
continuous actuation in the end position.
Tab. 9: Technical data, sizes 5 … 12
DYSD-... -16 -20 -25 -32
Stroke/cushioning distance s [mm] 15 16 24 25
Male thread M22x1.5 M26x1.5 M30x1.5 M37x1.5
Mode of operation Single-acting, pushing
Cushioning Self-adjusting
Mounting position any
Max. energy absorption per
hour at +20 °C
1)
[kJ] 64 92 150 180
Impact velocity [m/s] 0.1 1.0…
Min. insertion force F
2
[N] 160 260 430 480
Max. stop force
at end position
[N] 2000 3000 4000 6000
Min. reset force F
1
[N] 46 75 120 150
Reset time at +20 °C
2)
[s] 0.3£
Ambient temperature [°C] 0 +60…
Max. energy absorption per stroke at +20 °C
1)
Y9 [J] 40 70 140 220
Y10 [J] – 90 180 270
Y14 [J] 30 50 – –
1)
At a temperature of 80 °C the maximum mass and energy absorption must be reduced by approximately³
50 %.
2) At temperatures below 0 °C the reset time can increase to 1 s. The reset time may increase during
continuous actuation in the end position.
Tab. 10: Technical data, sizes 16 … 32
Product specificaties
| Merk: | Festo |
| Categorie: | Niet gecategoriseerd |
| Model: | DYSD-Q11-12-12-Y1F-Y9 |
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