Festo YSRW Bedienungsanleitung Seite 3

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5 Operation
If the operatin g conditions are modified:
Note
Modifications t o the effective load may cause t he mass to strike hard against the
end position (load peaks).
Repeat the setting of the YSRW ( chapter “Commissioning”).
Hard knocking requires the following remedy:
Reduce the impact speed; measure the cushioning length (s) 6 ( Fig. 3) as
acheck( Technical data Fig. 13).
Insufficien t cushioning indicates a considerable loss of oil. In this case the
YSRW must be replaced.
MaximisingtheservicelifeoftheYSRW:
If the shock absorber is not used to its full extent, there will be an increase in the
oil leakage.
Make sure that the shock absorber is operated with an energy utilisation of at
least 2 5 % to max. 100 %. The recommended range lies between 50 and 80 %.
Make sure that the extent of utilisation of the YSR W is as follows:
0 25 50 80 100 125 %
D
B
B
C
A
A = unfavourable
B = permissible
C = optimal
D = impermissible
Fig. 12
Take into account that t he viscosity of the hydraulic oil diminishes during opera-
tion due to the frictional heat which arises.
The shock absorber can therefore break throu gh after a lon g period of operation .
At temperatures below 0 °C:
Observe that the resetting times of the YSRW become longer (approx. 1 s).
Low temperatures cause an increase in the viscosity of the hydraulic oil.
6 Maintenance and care
Examine the YSRW for loss of oil after approximately every 2 million load
changes. At the same time, you should check the cushioning length (s)
( Fig. 3) of the YSRW.
Otherwise the YSRW does not require any maintenance.
7 Disassembly and repairs
Observe environmental protection requirements when disposing of the YSRW
(hazardous waste disposal). The YSRW is filled with hydraulic oil.
Due to the design , the hydraulic oil cannot be refilled.
8 Accessories
Note
Please select t he appropriate ac cessories from our catalogue
www.festo.com/catalogue
9Technicaldata
YSRW
5-8 7-10 8-14 10-17 12-20 16-26 20-34
Cushioning length (s) 6
( Fig. 3)
[mm] 8 10 14 17 20 26 34
Mode o f operation Single-acting, pushing
Cushioning Self-adjusting, progressive characteristic
Mounting po sition Any
Thread M8 M10 M12 M14 M16 M22 M26
Lead [mm] 1 1 1 1 1 1.5 1.5
Width across flats
Lock nut [mm] 10 13 15 17 19 27 32
Housing [mm] 7 9 11 13 15 20 24
Impact speed [m/s ] 0.1 2 0.1 3
Product weight [g] 8 18 34 54 78 190 330
Ambient temperature [°C] –10 +80
Reset time at roo m
temperature
[s] 0.2 0.3
Resetting force F
1
[N] 0.9 1.2 2.5 3.5 5 6 10
Insertion force F
2
[N] 7.5 10 18 25 35 60 100
Max. stop force in end position [kN] 0.2 0.3 0.5 0.7 1 2 3
Max. energy absorption
per stroke
1)
[J] 1.3 2.5 4 8 12 35 70
Max. energy absorption
per hour
1)
[kJ] 10 15 21 30 41 68 100
Max. mass
1)
[kg] 2 5 10 20 30 50 80
Information on materials
Housing High-alloy steel Galvanised steel
Piston rod High-alloy steel
Buffer Polyamide
Seals Nitrile rubber
1) The specified technical data refers to ambient temperature. At higher temperatures in the 80 °C range,
the max. mass and the cushioning work must be reduced by approx 50 %.
Fig. 13
YSRW 液压缓冲器 中文...............................................
1 功能和应用
YSRW 型液压缓冲器充满了液压油。
质量的冲击导致液压油流经受行程控制的节流阀而排出。冲击动能转化为
热能。通过压缩弹簧的作用使活塞杆复位。
YSRW 设计用于承受负载力,并且缓冲方向仅限于轴向,在许用负载范围内,
YSRW 也可作为止动挡块使用。
YSRW 不得用于旋转与转动应用以及潮湿环境中。
2 产品使用条件
注意
操作不当会导致功能故障。
请确保始终遵守本章规定。
请将本操作指南中各项参数极限值与您使用场合的实际值(例如:力、
频率、质量、温度、速度等)相比较。 只有遵守负载极限值才能确保 YSRW
按照相关的安全规程安全运行。
请考虑到产品应用地点的环境条件。
请注意遵守使用地点(例如:同业公会或所在国相关机构)的有关规定。
不得对 YSRW 的原始状态擅自进行任何改动。
3安
请按照具体应用要求选择合适的安装方式。
钻孔
螺纹(通孔)
Fig. 14
当超过最大许用冲击力时:
除了液压缓冲器外,还需额外使用止动挡块。
安装 YSRW 就位时请注意以下几点:
确保负载尽可能沿着轴向撞向缓冲垫 5 Fig. 1 ),
(最大偏差 3°, Fig. 2 )。
利用外部止动挡块 8 Fig. 3 )来防止由于冲力过大而导致 YSRW
过载,同时还有助于提高终端定位的精度( Fig. 3)。
按照所选固定方式拧紧锁紧螺母 3 Fig. 1)。
拧紧时必须遵守下表中的紧固扭矩:
YSRW
5-8 7-10 8-14 10-17 12-20 16-26 20-34
外部止挡距离(k)
的最小尺寸 7
[mm] 6.2 7.7 8.7 10.9 12.9 16.9 20.9
最大紧固扭矩 3 [Nm] 2 3 5 8 20 35 60
Fig. 15
4调
请注意以下各力的允许值:
–压力(F2)( 技术数据 Fig. 18
复位力(F1)( 技术数据 Fig. 1 8
Fig. 16
力应至少达到(F2),为使液压
缓冲器能够完全地压到终端位
对于前置的外部终端位值应相
应地小。
作用在活塞杆上的最大复位力 F1
应保缓冲器能够完全复位
(例如:活塞杆出)。
用较小的运行速度动运动部件进行试。
试运行时:
作负载逐步加所需运行速度。
请根据具体的负载情况选定合适的运行速度。确的终端缓冲:液压缓冲
器的活塞杆到终端位(止动挡块)时不会发生强烈撞击。
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