JPH0294905U

JPH0294905U -

Info

Publication number: JPH0294905U
Application number: JP417389U
Authority: JP
Priority date: 1989-01-18
Filing date: 1989-01-18
Publication date: 1990-07-27

Description

[Brief explanation of drawings]

第１図は本考案に係る空油圧併用シリンダの一
例を示す断面図、第２図は本考案のシリンダを極
低〜低圧用として使用する場合の作用説明図、第
３図は同じく低〜中圧用として使用する場合の作
用説明図、第４図は同じく高〜極高圧用として使
用する場合の作用説明図である。符号説明、Ａ……エアシリンダ部、Ｂ……オイ
ルシリンダ部、Ｃ……油圧用油供給部、１……第
１エアシリンダ、２……第２エアシリンダ、３…
…第３エアシリンダ、４……第１シリンダ下蓋、
５……第２シリンダ下蓋、６……第３シリンダ下
蓋、７……第３シリンダ上蓋、８〜１０……ピス
トン、１１〜１３……ロツド、１４〜１６……往
動用エア送入口、１７〜１９……復動用エア送入
口、２０……ピストン、２１……主ロツド、２２
……オイルシリンダ壁、２３……油受け用穴、２
４……油送入口、２５……第１ロツド貫通孔、２
６……油圧用油、２７……空気室、２８……オイ
ルシリンダ下蓋、２９……復動用エア送入口、３
０……油タンク、３１……タンク上蓋、３２……
圧縮空気送入口、３３……エア混入防止用プレー
ト、３４……送油管、３５……ストツパ。 Fig. 1 is a sectional view showing an example of the pneumatic-hydraulic combination cylinder according to the present invention, Fig. 2 is an explanatory diagram of the operation when the cylinder of the present invention is used for extremely low to low pressure, and Fig. 3 is also a low to medium pressure cylinder. FIG. 4 is a diagram illustrating the operation when used for high pressure to extremely high pressure. Description of symbols, A...Air cylinder section, B...Oil cylinder section, C...Hydraulic oil supply section, 1...First air cylinder, 2...Second air cylinder, 3...
...Third air cylinder, 4...First cylinder lower cover,
5...Second cylinder lower cover, 6...Third cylinder lower cover, 7...Third cylinder upper cover, 8-10...Piston, 11-13...Rod, 14-16...Forward air inlet , 17-19... Double acting air inlet, 20... Piston, 21... Main rod, 22
...Oil cylinder wall, 23 ...Oil receiving hole, 2
4... Oil inlet, 25... First rod through hole, 2
6... Hydraulic oil, 27... Air chamber, 28... Oil cylinder lower cover, 29... Double acting air inlet, 3
0... Oil tank, 31... Tank top lid, 32...
Compressed air inlet, 33... air mixture prevention plate, 34... oil feed pipe, 35... stopper.

Claims

[Claims for Utility Model Registration] An air cylinder section in which a plurality of independently driven air cylinders are connected vertically in series;
It consists of an oil cylinder section further connected in series to the lower side of the air cylinder section, and an oil supply section that supplies hydraulic oil to the oil cylinder section, and the piston rod of each air cylinder is connected to the cylinder below. The rod is configured to be able to penetrate the upper cover and come into contact with the rod head end of the lower cylinder, and the rod of the lower air cylinder has a retractable end on the inner surface of the rod through hole opened in the lower cover of the lower air cylinder. When the rod is in the position, the tip of the oil inlet to the oil cylinder faces below the lower end of the rod, and the oil inlet is configured to be able to be closed by the side surface of the rod by lowering the rod. A compressed air inlet is provided in the upper cover of the auxiliary oil tank constituting the part, and the oil in the tank is configured to be press fit into the upper side of the piston of the oil cylinder through the oil inlet. Air-hydraulic cylinder.