5 operation, 6 maintenance and care, 7 disassembly and repairs – Festo YSRW Benutzerhandbuch

Seite 3: 8 accessories, 9 technical data, Ysrw 液压缓冲器 中文, 1 功能和应用, 2 产品使用条件, 3 安装, 4 调试

Advertising
background image

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 YSRW (

chapter “Commissioning”).

Hard knocking requires the following remedy:
• Reduce the impact speed; measure the cushioning length (s)

6 ( Fig. 3) as

a check (

Technical data Fig. 13).

Insufficient cushioning indicates a considerable loss of oil. In this case the
YSRW must be replaced.

Maximising the service life of the YSRW:
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 25 % to max. 100 %. The recommended range lies between 50 and 80 %.

• Make sure that the extent of utilisation of the YSRW 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 the viscosity of the hydraulic oil diminishes during opera-

tion due to the frictional heat which arises.
The shock absorber can therefore break through after a long 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 the appropriate accessories from our catalogue

www.festo.com/catalogue

9

Technical data

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 of operation

Single-acting, pushing

Cushioning

Self-adjusting, progressive characteristic

Mounting position

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 room
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

安装

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

调试

请注意以下各力的允许值:

–压入力(F2)(

技术数据 Fig. 18)

–复位力(F1)(

技术数据 Fig. 18)

Fig. 16

压入力应至少达到(F2),为使液压

缓冲器能够完全地压入到终端位置。

对于前置的外部终端位置,此值应相

应地减小。

作用在活塞杆上的最大复位力 F1

应保证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测试。

试运行时:

将工作负载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。

Advertising