JPS59102662U - Hydraulic circuit for swing equipment - Google Patents

Hydraulic circuit for swing equipment

Info

Publication number
JPS59102662U
JPS59102662U JP19686982U JP19686982U JPS59102662U JP S59102662 U JPS59102662 U JP S59102662U JP 19686982 U JP19686982 U JP 19686982U JP 19686982 U JP19686982 U JP 19686982U JP S59102662 U JPS59102662 U JP S59102662U
Authority
JP
Japan
Prior art keywords
hydraulic circuit
swing
engine
safety brake
swing equipment
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.)
Pending
Application number
JP19686982U
Other languages
Japanese (ja)
Inventor
「たか」野　靖郎
Original Assignee
石川島播磨重工業株式会社
石川島建機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 石川島播磨重工業株式会社, 石川島建機株式会社 filed Critical 石川島播磨重工業株式会社
Priority to JP19686982U priority Critical patent/JPS59102662U/en
Publication of JPS59102662U publication Critical patent/JPS59102662U/en
Pending legal-status Critical Current

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  • Operation Control Of Excavators (AREA)
  • Jib Cranes (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の旋回装置用油圧回路の説明図、第２図は
本考案の旋回装置用油圧回路の説明図、第３図は第２図
における安全ブレーキを作動させる他の装置の説明図で
ある。 図中、１は油圧ポンプ、２はコントロールバルブ、３は
クッション弁、４は旋回モータ、１２はスプリング、１
４はピストンロッド、１５は安全ブレーキ、１７はシリ
ンダ室を示す。Fig. 1 is an explanatory diagram of a conventional hydraulic circuit for a swing device, Fig. 2 is an explanatory diagram of a hydraulic circuit for a swing device according to the present invention, and Fig. 3 is an explanatory diagram of another device for operating the safety brake in Fig. 2. It is. In the figure, 1 is a hydraulic pump, 2 is a control valve, 3 is a cushion valve, 4 is a swing motor, 12 is a spring, 1
4 is a piston rod, 15 is a safety brake, and 17 is a cylinder chamber.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エンジンにより駆動される油圧ポンプからコントロール
バルブ及びクッション弁を経て送られる圧油により回転
される旋回モータにシリンダ内にスプリングにより付勢
せしめて収納したピストンロッドにより前記旋回モータ
を停止し得る安全ブレーキを設け、該安全ブレーキのシ
リンダ室にエンジン停止時の油圧変化に基づいて油を供
給排出し得るよう構成したことを特徴とする旋回装置用
油圧回路。The swing motor is rotated by pressure oil sent from a hydraulic pump driven by the engine through a control valve and a cushion valve, and a safety brake capable of stopping the swing motor is provided by a piston rod stored in a cylinder and biased by a spring. 1. A hydraulic circuit for a swing device, characterized in that the hydraulic circuit is configured to supply and discharge oil to a cylinder chamber of the safety brake based on a change in oil pressure when the engine is stopped.
JP19686982U 1982-12-27 1982-12-27 Hydraulic circuit for swing equipment Pending JPS59102662U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19686982U JPS59102662U (en) 1982-12-27 1982-12-27 Hydraulic circuit for swing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19686982U JPS59102662U (en) 1982-12-27 1982-12-27 Hydraulic circuit for swing equipment

Publications (1)

Publication Number Publication Date
JPS59102662U true JPS59102662U (en) 1984-07-10

Family

ID=30422118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19686982U Pending JPS59102662U (en) 1982-12-27 1982-12-27 Hydraulic circuit for swing equipment

Country Status (1)

Country Link
JP (1) JPS59102662U (en)

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