Festo DYSW-...-Y1F - Handbuch (Seite 3)

Shock absorber DYSW-…-Y1F English . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Operation
If the operating conditions are modified:
Note
Modifications to the effective load may cause the mass to strike hard against the
end position (load peaks).
• Repeat the setting of the DYSW (
chapter “Commissioning”).
Hard knocking requires the following remedy:
• Reduce the impact speed, measure the cushioning length (s) (
Fig. 3) as a
check ( Technical data Fig. 13).
Insufficient cushioning indicates a considerable loss of oil. In this case the
DYSW must be replaced.
Maximizing the service life of the DYSW:
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 utilization of at
least 25% to max. 100%. The recommended range lies between 50 and 80%.
• Make sure that the DYSW is utilized as follows:
0 25 50 80 100 125 %
D B B C A
A = unfavourable
B = permitted
C = optimum
D = not permitted
Fig. 12
• Take into account the fact that the viscosity of the hydraulic oil diminishes during
operation due to the friction heat which arises.
The shock absorber can therefore break through after a long period of operation.
At temperatures below 0 °C:
• Note that the resetting times of the DYSW become longer (approx. 1 s).
Very low temperatures cause the viscosity of the hydraulic oil to increase.
6 Care and maintenance
• Check the oil loss on the DYSW approximately every 2 million load changes. We
also recommend that you check the cushioning length (s) ( Fig. 3) of the DYSW.
Otherwise the DYSW does not require any maintenance.
7 Disassembly and repairs
• Reduce the amount of waste by using the materials in the DYSW shock absorber
for other purposes (material recycling). The DYSW is filled with hydraulic oil.
Due to the design, hydraulic oil cannot be refilled.
8 Accessories
Note
• Please select the appropriate accessories from our catalogue
www.festo.com/catalogue
9 Technical Data
DYSW 4-6 5-8 7-10 8-14 10-17 12-20
Cushioning length (s) 5 ( Fig. 3) [mm] 6 8 10 14 17 20
Method of operation Single-acting, pushing
Cushioning Self-adjusting, progressive characteristic
Type of fastening Thread with lock nut
Mounting position As desired
Width across flats internal hexagon [mm] 2 2.5 3 4 4 5
locking nut [mm] 8 10 13 15 17 19
Impact velocity [m/s] 0.1 … 2 0.1 … 3
Product weight [g] 6 11 21 42 67 91
Ambient temperat. [°C] –10 … +80
Reset time at room temperature [s] ≤ 0.2 ≤ 0.3
Resetting force F1 [N] 0.7 0.9 1.2 2.5 3.5 5
Insert force F2 [N] 6.5 7.5 10 18 25 35
Max. stop force in end position [N] 100 200 300 500 700 1000
Max. energy consumption per stroke
1)
[J] 0.8 1.3 2.5 4 8 12
Max. energy consumption per hour
1)
[kJ] 7 10 15 21 30 41
Permitted mass range 1) [kg] 1.2 2 5 10 20 30
Material note Free of copper and PTFE
Material information
Housing High alloy steel Galvanized steel
Piston rod High alloy steel
Buffers Polyacetal, polyamide
Seals Nitrile rubber
1) The specified technical data refer to ambient temperature. At higher temperatures in the range 80 °C
the max. mass and energy consumption must be reduced by approx. 50%.
Fig. 13
液压缓冲器 DYSW-…-Y1F 中文 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 功能和应用
液压缓冲器 DYSW 中装满了液压油。
当负载撞击缓冲器时，挤压油液流经节流阀进入另一腔体内，这个过程取决于
缓冲行程的大小； 撞击动能转化为热能。通过压缩弹簧的作用使活塞杆复位。
DYSW 设计用于承受惯性力， 承受的负载作用力方向仅限于轴向。
在许用负载范围内，DYSW 可作为止动挡块使用。
DYSW 不能用于旋转和摆动应用场合以及潮湿环境中。
2 产品使用条件
注意
操作不当会引发功能故障。
•
请确保始终遵守本章规定。
• 请将本操作说明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使 DYSW
按照相关的安全规程安全运行。
• 请注意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。
• 请勿对 DYSW 的原装状态擅自进行任何改动。
3 安装
• 请选择适合您使用场合的安装方式。
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，需额外使用止动挡块。
• 安装 DYSW 时请注意以下几点：
–
负载应尽可能沿端面撞向固定止挡 5（ Fig. 1）。
– 负载应尽可能沿轴向撞向缓冲垫 1（ Fig. 1），
作用力方向的最大许用偏差: 3° ( Fig. 2).
– 作用扭矩不得超过内六角孔 4 ( Fig. 1) 处最大许用扭矩
（见下表 Fig. 15）。
• 按照所选的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力矩：
DYSW 4-6 5-8 7-10 8-14 10-17 12-20
许用扭矩 4 [Nm] 0.5 0.8 2.2 5 8 13
紧固力矩 3 [Nm] 1 2 3 5 8 20
Fig. 15
4 调试
• 请注意下列力的允许值：
–
压入力（F2）（ 技术参数 Fig. 18）
– 复位力（F1）（ 技术参数 Fig. 18）
Fig. 16
• 压入力至少和（F2）相等，
使液压缓冲器能完全压入后面的终
端位置。
对于前置的外部终端位置，此值应
相应地减小。
• 作用在活塞杆上的复位力最多和
（F1）相等，使液压缓冲器能
够完全复位（例如：活塞杆完全
伸出）。
• 先用较小的运行速度启动运动部件进行试运行。
试运行时：
•
将工作载荷逐步加速至所需运行速度。
请根据具体的负载情况选定合适的运行速度。
正确的终端缓冲是：液压缓冲器的活塞杆到达终端位置（止动挡块）时不会
发生强烈撞击。