JPS58102806U - Hydraulic motor brake device - Google Patents
Hydraulic motor brake deviceInfo
- Publication number
- JPS58102806U JPS58102806U JP19468781U JP19468781U JPS58102806U JP S58102806 U JPS58102806 U JP S58102806U JP 19468781 U JP19468781 U JP 19468781U JP 19468781 U JP19468781 U JP 19468781U JP S58102806 U JPS58102806 U JP S58102806U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic motor
- hydraulic pump
- brake
- brake device
- pilot
- 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
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図は従来の油圧モータのブレーキ装置の回 ゛略
図、第２図及び第３図は本考案の実施例を示す油圧モー
タのブレーキ装置の回路図である。
図の主要部分の説明、１・・・油圧モータ、３・・・駐
車ブレーキ、３ａ・・・バネ、３ｂ・・・ピストン、３
Ｃ・・・ブレーキピストン室、７・・・カウンタバラン
ススプール、８・・・第１シヤトル弁、９・・・切換弁
、１０・・・第１油圧ポンプ、１１・・・パイロット油
圧ポンプ、１５・・・第２シヤトル弁、１６・・・リリ
ーフ弁、１７・・・絞り、１８・・・第２油圧ポンプ、
１９・・・パイロット切換弁。
［＋−１
−９用１
第２図
−ｖ−ｌFIG. 1 is a circuit diagram of a conventional brake device for a hydraulic motor, and FIGS. 2 and 3 are circuit diagrams of a brake device for a hydraulic motor showing an embodiment of the present invention. Explanation of the main parts of the diagram, 1...Hydraulic motor, 3...Parking brake, 3a...Spring, 3b...Piston, 3
C... Brake piston chamber, 7... Counter balance spool, 8... First shuttle valve, 9... Switching valve, 10... First hydraulic pump, 11... Pilot hydraulic pump, 15 ... second shuttle valve, 16 ... relief valve, 17 ... throttle, 18 ... second hydraulic pump,
19...Pilot switching valve. [+-1 -1 for 9 Fig. 2-v-l
Claims (1)
とカウンタバランススプール、同油圧モータの駆動系に
連結し油を給排するパイロット油圧ポンプ、同パイロッ
ト油圧ポンプの吐出回路に設けたリリーフ弁と絞り、同
リリーフ弁と絞りにより発生する圧力と、前記切換弁と
カウンタバランススプールとの間に設けた第１シヤトル
弁の出口圧力とを選択する第２シヤトル弁、前記油圧モ
ータに連結され、−ピストンを押してブレーキを解除す
る方向に付勢するバネを設けた駐車ブレーキのブレーキ
ピストン室に接続した第２油圧ポンプ、同第２油圧ポン
プの吐出油路に設けられ、前記第２シヤトル弁の出口圧
力で切換作動するパイロット切換弁とよりなることを特
徴とする油圧モータのブレーキ装置。A switching valve and a counterbalance spool are installed in sequence between the first hydraulic pump and the hydraulic motor, a pilot hydraulic pump is connected to the drive system of the hydraulic motor to supply and discharge oil, and a relief is installed in the discharge circuit of the pilot hydraulic pump. a second shuttle valve connected to the hydraulic motor and selecting between the pressure generated by the relief valve and the throttle and the outlet pressure of the first shuttle valve provided between the switching valve and the counterbalance spool; , - a second hydraulic pump connected to the brake piston chamber of the parking brake, which is provided with a spring that urges the piston in a direction to release the brake; a second shuttle valve provided in the discharge oil passage of the second hydraulic pump; A brake device for a hydraulic motor, comprising a pilot switching valve that switches according to the outlet pressure of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19468781U JPS58102806U (en) | 1981-12-30 | 1981-12-30 | Hydraulic motor brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19468781U JPS58102806U (en) | 1981-12-30 | 1981-12-30 | Hydraulic motor brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58102806U true JPS58102806U (en) | 1983-07-13 |
Family
ID=30107993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19468781U Pending JPS58102806U (en) | 1981-12-30 | 1981-12-30 | Hydraulic motor brake device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58102806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019190592A (en) * | 2018-04-26 | 2019-10-31 | 大電株式会社 | Direction change-over valve |
-
1981
- 1981-12-30 JP JP19468781U patent/JPS58102806U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019190592A (en) * | 2018-04-26 | 2019-10-31 | 大電株式会社 | Direction change-over valve |
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