JPS5876308U - hydraulic system - Google Patents
hydraulic systemInfo
- Publication number
- JPS5876308U JPS5876308U JP17081581U JP17081581U JPS5876308U JP S5876308 U JPS5876308 U JP S5876308U JP 17081581 U JP17081581 U JP 17081581U JP 17081581 U JP17081581 U JP 17081581U JP S5876308 U JPS5876308 U JP S5876308U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- back pressure
- main
- packing
- stroke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は油圧シリンダーを備えた圧延機の概略図、第２
図は従来の油圧シリンダーの構成を示す系統図、第３図
は本考案の油圧シリンダーの構成を示す系統図、第４図
は本考案の作動状態を示す断面図である。
１・・・・・・圧延機ハウジング、２・・四作業ロール
軸受箱、３・・・・・・補強ロール軸受箱、４・・曲作
業ロール、５・・・・・・補強ロール、６・・・・・・
油圧シリンダー、７・・・・・・シリンダー、８・・・
用ピストン、９・・曲カバー、ｉｏ・・・・・・ボルト
、１１・・・・・・パツキン、１２・・・・・・パツキ
ン、１３・・・・・・位置測定装置、１４・・曲サーボ
弁゛、１５・・・・・・減圧弁、１６・・・・・傳リー
フ弁、１７・・・・・・バイパス回路、１８・・ｌ１圧
室、１９・・・・・・背圧室。Figure 1 is a schematic diagram of a rolling mill equipped with hydraulic cylinders;
FIG. 3 is a system diagram showing the configuration of a conventional hydraulic cylinder, FIG. 3 is a system diagram showing the configuration of the hydraulic cylinder of the present invention, and FIG. 4 is a sectional view showing the operating state of the present invention. 1...Rolling mill housing, 2...4 work roll bearing box, 3...Reinforcement roll bearing box, 4...Bending work roll, 5...Reinforcement roll, 6・・・・・・
Hydraulic cylinder, 7... Cylinder, 8...
piston, 9... curved cover, io... bolt, 11... packing, 12... packing, 13... position measuring device, 14... Curved servo valve, 15... pressure reducing valve, 16... leaf valve, 17... bypass circuit, 18... l1 pressure chamber, 19... back Pressure chamber.
Claims (1)
ストンとシリンダーとの間に主圧室と背圧室を備えた油
圧装置において、通常ストローク時には前記背圧室側に
あり、異常ストローク時には前記パツキンをバイパスし
て前記主王室と前記背圧室を連絡するバイパス回路によ
っつ土圧供給油を前記背圧室に導くように構成され、か
つ、背圧ラインに設置したリリーフ弁によって圧力上昇
を検知し、タンクへの排油回路を開くように構成したこ
とを特徴とする油圧シリンダー異常ストローク時安全装
置。In a hydraulic system having a main pressure chamber and a back pressure chamber between the piston and cylinder, which are separated by a packing in the piston head, the main pressure chamber is located on the back pressure chamber side during a normal stroke, and bypasses the packing during an abnormal stroke. configured to guide the earth pressure supply oil to the back pressure chamber through a bypass circuit connecting the main room and the back pressure chamber, and detect a pressure increase by a relief valve installed in the back pressure line, A safety device in the event of an abnormal stroke of a hydraulic cylinder, characterized in that it is configured to open an oil drain circuit to a tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17081581U JPS5876308U (en) | 1981-11-18 | 1981-11-18 | hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17081581U JPS5876308U (en) | 1981-11-18 | 1981-11-18 | hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5876308U true JPS5876308U (en) | 1983-05-23 |
| JPH0120006Y2 JPH0120006Y2 (en) | 1989-06-12 |
Family
ID=29962761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17081581U Granted JPS5876308U (en) | 1981-11-18 | 1981-11-18 | hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5876308U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5046884U (en) * | 1973-08-30 | 1975-05-10 |
-
1981
- 1981-11-18 JP JP17081581U patent/JPS5876308U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5046884U (en) * | 1973-08-30 | 1975-05-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0120006Y2 (en) | 1989-06-12 |
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