JPH0336046U - - Google Patents
Info
- Publication number
- JPH0336046U JPH0336046U JP9603989U JP9603989U JPH0336046U JP H0336046 U JPH0336046 U JP H0336046U JP 9603989 U JP9603989 U JP 9603989U JP 9603989 U JP9603989 U JP 9603989U JP H0336046 U JPH0336046 U JP H0336046U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- brake
- pressure
- swing
- switch circuit
- 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
- 238000010276 construction Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Braking Systems And Boosters (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の油圧および電気回路図、第２
図は従来の回路図である。
１…油圧ポンプ、２…旋回用コントロールバル
ブ、２ａ，２ｂ…パイロツト管路、３…旋回モー
タ、４…駐車ブレーキ、５…パイロツトバルブ、
６…シヤツトル弁、７，７′…プレツシヤスイツ
チ、７ａ，７ａ′…パイロツト管路、８…コント
ローラ、９…電磁弁、９ａ…電磁作動部、１０…
補助油圧源、１１，１２…スイツチ回路、１３…
手動スイツチ、Ｂ…電源バツテリ。
Figure 1 is the hydraulic and electrical circuit diagram of the present invention, Figure 2
The figure is a conventional circuit diagram. DESCRIPTION OF SYMBOLS 1... Hydraulic pump, 2... Control valve for swing, 2a, 2b... Pilot pipe, 3... Swing motor, 4... Parking brake, 5... Pilot valve,
6... Shuttle valve, 7, 7'... Pressure switch, 7a, 7a'... Pilot pipe line, 8... Controller, 9... Solenoid valve, 9a... Solenoid actuating section, 10...
Auxiliary hydraulic power source, 11, 12... switch circuit, 13...
Manual switch, B...Power battery.
Claims (1)
ーキ解除される旋回駐車ブレーキ４に対する圧油
給排用電磁弁９の電磁作動部９ａを、コントロー
ラ８、プレツシヤスイツチ７を介して電源Ｂに接
続し、該プレツシヤスイツチ７のパイロツト管路
７ａをシヤトル弁６を介して旋回用コントロール
バルブ２のパイロツト管路２ａ，２ｂに接続して
なる旋回ブレーキ装置において、前記プレツシヤ
スイツチ７およびコントローラ８を備えたスイツ
チ回路１１と並列に他のスイツチ回路１２を接続
し、該スイツチ回路１２を任意の作動機の操作に
よつてＯＮ／ＯＦＦ可能とすると共に、両スイツ
チ回路１１，１２の双方に対して直列に手動スイ
ツチ１３を接続してなることを特徴とする建設機
械の旋回体パーキング用ブレーキ装置。 The electromagnetic actuating portion 9a of the solenoid valve 9 for supplying and discharging pressure oil to the swing parking brake 4, which operates the brake by a spring force and releases the brake by hydraulic pressure, is connected to a power source B via a controller 8 and a pressure switch 7, In the swing brake device in which the pilot line 7a of the pressure switch 7 is connected to the pilot lines 2a, 2b of the swing control valve 2 via the shuttle valve 6, the pressure switch 7 and the controller 8 are connected to each other. Another switch circuit 12 is connected in parallel with the provided switch circuit 11, and the switch circuit 12 can be turned on and off by operating an arbitrary actuator, and both switch circuits 11 and 12 are connected in parallel. A brake device for parking a revolving body of a construction machine, characterized in that a manual switch 13 is connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9603989U JPH0336046U (en) | 1989-08-18 | 1989-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9603989U JPH0336046U (en) | 1989-08-18 | 1989-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0336046U true JPH0336046U (en) | 1991-04-09 |
Family
ID=31645266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9603989U Pending JPH0336046U (en) | 1989-08-18 | 1989-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0336046U (en) |
-
1989
- 1989-08-18 JP JP9603989U patent/JPH0336046U/ja active Pending