JPS5939844U

JPS5939844U - Hydraulic solenoid valve for breaker

Info

Publication number: JPS5939844U
Application number: JP13591982U
Authority: JP
Inventors: 隆中里; 山内　満
Original assignee: 株式会社東芝
Priority date: 1982-09-09
Filing date: 1982-09-09
Publication date: 1984-03-14
Also published as: JPS6342432Y2

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

[Brief explanation of the drawing]

第１図は従来の油圧電磁弁の断面図、第２図は本考案の
一実施例のしゃ断器の油圧電磁弁の断面図、第３図は第
２図の弁開力と油圧との関係を示す線図である。１１・・・・・・弁ケース、１２・・・・・・油圧供給
ポート、１３・・・・・・油圧排出ポート、１５・・・
・・・開口、１６゜２６．２７・・・・・・圧縮ばね、
１７・・・・・・弁体、１８・・・・・・弁部、１９・
・・・・・操作ロッド、２０・・・・・・バランスピス
トン、２１・・・・・・シリンダ、２１ａ・・・・・・
空間部、２２・・・・・・アーマチャ、２３・・・・・
・電磁コイル、２５・・・・・・電磁部。第２図第３図Fig. 1 is a sectional view of a conventional hydraulic solenoid valve, Fig. 2 is a sectional view of a hydraulic solenoid valve of a breaker according to an embodiment of the present invention, and Fig. 3 is the relationship between the valve opening force and oil pressure in Fig. 2. FIG. 11...Valve case, 12...Hydraulic pressure supply port, 13...Hydraulic discharge port, 15...
...Opening, 16°26.27...Compression spring,
17... Valve body, 18... Valve portion, 19.
......Operating rod, 20...Balance piston, 21...Cylinder, 21a...
Space part, 22... Armature, 23...
- Electromagnetic coil, 25... Electromagnetic part. Figure 2 Figure 3

Claims

[Scope of utility model registration request]

A hydraulic supply port and a hydraulic discharge port that are provided inside the valve case and communicate with each other, a valve body that is provided in a direction that closes an opening formed on the hydraulic supply port side, and a first compression spring that presses the valve body. an operating rod that presses the valve element so as to open the valve element, and an electromagnetic part that operates the operating rod, wherein the operating rod slidably passes through the balance. A piston is housed inside a cylinder provided in the valve case, and a second piston is provided between the balance piston and an end of the inside of the cylinder on the side of the valve section so as to press each other in the axial direction of the operating rod. a third compression spring is provided between the end of the balance piston on the valve side and the operating rod so as to press each other in the axial direction of the operating rod;
A hydraulic solenoid valve for a circuit breaker, characterized in that the hydraulic pressure supply port communicates with the inside of a cylinder on the opposite side of the balance piston.