JPS60143068U - Hydraulic release type brake device - Google Patents

Hydraulic release type brake device

Info

Publication number
JPS60143068U
JPS60143068U JP3054484U JP3054484U JPS60143068U JP S60143068 U JPS60143068 U JP S60143068U JP 3054484 U JP3054484 U JP 3054484U JP 3054484 U JP3054484 U JP 3054484U JP S60143068 U JPS60143068 U JP S60143068U
Authority
JP
Japan
Prior art keywords
hydraulic
brake
release type
pressure
brake device
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
JP3054484U
Other languages
Japanese (ja)
Inventor
織本　尚之
Original Assignee
株式会社小松製作所
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 株式会社小松製作所 filed Critical 株式会社小松製作所
Priority to JP3054484U priority Critical patent/JPS60143068U/en
Publication of JPS60143068U publication Critical patent/JPS60143068U/en
Pending legal-status Critical Current

Links

Landscapes

  • Braking Systems And Boosters (AREA)
  • Valves And Accessory Devices For Braking Systems (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

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

第１図は従来例を示す油圧回路図、第２図は本考案の実
施例を示す油圧回路図である。　　　・１は油圧モータ
、４はブレーキ室、５はブレー゛キ回路、６は油圧ポン
プ、７はフィルタ、９はブレーキ弁、１３はバイパス弁
、１６は油圧センサ、１７は閉回蕗、１８は可変油圧ポ
ンプ、１９はコントローラ。FIG. 1 is a hydraulic circuit diagram showing a conventional example, and FIG. 2 is a hydraulic circuit diagram showing an embodiment of the present invention.・1 is a hydraulic motor, 4 is a brake chamber, 5 is a brake circuit, 6 is a hydraulic pump, 7 is a filter, 9 is a brake valve, 13 is a bypass valve, 16 is a hydraulic sensor, 17 is a closing valve, 18 is Variable hydraulic pump, 19 is a controller.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ばね力にて作動し、またブレーキ室４に作用する油圧力
にて解放され、かつブレーキ室４゛に、フィルタ７、ブ
レーキ９およびフィルタ７より下流側に位置するリリー
フ弁を介して油圧ポンプ６を接続してなり、さらに閉回
路１７で接続した可変油圧ポンプ１８および油圧モータ
１のう、ちの油圧モータ１の出力軸３に設けた油圧解放
形ブレーキ装置において、フィルタフの上流側に、この
フィルタフの前後の圧力差が所定圧力以上になると開と
なり、かつ出口側をタンク側へ開放したバイパス弁１３
を接続し、またブレーキ弁９の上流側に、ブレーキ回路
５内圧力が所定圧力より低下したときに信号を出力する
油圧センサ１６を設け、上詰閉回路１７の可変油圧ポン
プ１８を制御するコントローラ１９に上記油圧センサ１
６を接続してなることを特徴とする油圧解放形ブレーキ
装置。　−The hydraulic pump 6 is actuated by a spring force, is released by the hydraulic pressure acting on the brake chamber 4, and is supplied to the brake chamber 4 through the filter 7, the brake 9, and a relief valve located downstream from the filter 7. In a hydraulic release type brake device provided on the output shaft 3 of the hydraulic motor 1, the variable hydraulic pump 18 and the hydraulic motor 1 are connected in a closed circuit 17. Bypass valve 13 opens when the pressure difference before and after becomes equal to or higher than a predetermined pressure, and opens the outlet side to the tank side.
A hydraulic sensor 16 is provided upstream of the brake valve 9 to output a signal when the internal pressure of the brake circuit 5 drops below a predetermined pressure, and a controller that controls the variable hydraulic pump 18 of the upper closing circuit 17 is connected to the brake valve 9. 19, the above oil pressure sensor 1
A hydraulic release type brake device characterized by connecting 6. −
JP3054484U 1984-03-05 1984-03-05 Hydraulic release type brake device Pending JPS60143068U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3054484U JPS60143068U (en) 1984-03-05 1984-03-05 Hydraulic release type brake device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3054484U JPS60143068U (en) 1984-03-05 1984-03-05 Hydraulic release type brake device

Publications (1)

Publication Number Publication Date
JPS60143068U true JPS60143068U (en) 1985-09-21

Family

ID=30530333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3054484U Pending JPS60143068U (en) 1984-03-05 1984-03-05 Hydraulic release type brake device

Country Status (1)

Country Link
JP (1) JPS60143068U (en)

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