JPS62159570U - - Google Patents
Info
- Publication number
- JPS62159570U JPS62159570U JP4685786U JP4685786U JPS62159570U JP S62159570 U JPS62159570 U JP S62159570U JP 4685786 U JP4685786 U JP 4685786U JP 4685786 U JP4685786 U JP 4685786U JP S62159570 U JPS62159570 U JP S62159570U
- Authority
- JP
- Japan
- Prior art keywords
- brake
- port
- swing motor
- revolving body
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案ブレーキ装置の油圧回路図、第
２図および第３図は本考案の他の実施例油圧回路
図、第４図は従来技術の油圧回路図である。
１……ブレーキ機構、２……旋回モータ、３…
…ポート連通切換弁、４……パイロツト圧受圧部
、５……パイロツト油路、６……電磁弁、７……
パイロツトポンプ、８……油圧力作用部、９……
旋回切換弁、１２……電気回路、１２′……電気
回路、２０……油圧力作用部、２１……電磁弁、
２３……旋回切換弁、２４……リモートコントロ
ール弁、３５……電磁弁。
FIG. 1 is a hydraulic circuit diagram of the brake system of the present invention, FIGS. 2 and 3 are hydraulic circuit diagrams of other embodiments of the present invention, and FIG. 4 is a hydraulic circuit diagram of the prior art. 1...brake mechanism, 2...swivel motor, 3...
... Port communication switching valve, 4 ... Pilot pressure receiving section, 5 ... Pilot oil passage, 6 ... Solenoid valve, 7 ...
Pilot pump, 8...Hydraulic pressure acting part, 9...
Swing switching valve, 12... Electric circuit, 12'... Electric circuit, 20... Hydraulic pressure acting part, 21... Solenoid valve,
23...Swivel switching valve, 24...Remote control valve, 35...Solenoid valve.
Claims (1)
ばね力にてブレーキ作動し、油圧力にてブレーキ
解除がなされるようにしたブレーキ機構１をそな
えた建設機械の旋回体パーキング用ブレーキ装置
において、旋回モータ２の作動停止時にはその旋
回モータ２のポートイとポートロとを連通し、ま
た旋回モータ２作動時にはブレーキ解除用パイロ
ツト油圧によりポートイとポートロを遮断する如
きポート連通切換弁３を旋回モータ２のポートイ
，ロ間に設けるとともに、上記ポート連通切換弁
３のパイロツト圧受圧部４をブレーキ解除用パイ
ロツト油路５へ接続せしめたことを特徴とする上
部旋回式建設機械の旋回体パーキング用ブレーキ
装置。 A brake for parking a revolving body of a construction machine, which has an upper revolving body and is equipped with a brake mechanism 1 in which the brake is actuated by a spring force on the revolving shaft of the upper revolving body, and the brake is released by hydraulic pressure. In the device, a port communication switching valve 3 is connected to the swing motor so that when the swing motor 2 stops operating, the port of the swing motor 2 is connected to the port, and when the swing motor 2 is in operation, the port and the port are disconnected by pilot hydraulic pressure for releasing the brake. A brake for parking a revolving body of a top-swivel type construction machine, characterized in that the pilot pressure receiving part 4 of the port communication switching valve 3 is connected to a pilot oil passage 5 for releasing the brake. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986046857U JPH0529260Y2 (en) | 1986-03-28 | 1986-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986046857U JPH0529260Y2 (en) | 1986-03-28 | 1986-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62159570U true JPS62159570U (en) | 1987-10-09 |
| JPH0529260Y2 JPH0529260Y2 (en) | 1993-07-27 |
Family
ID=30866908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986046857U Expired - Lifetime JPH0529260Y2 (en) | 1986-03-28 | 1986-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0529260Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59122639A (en) * | 1982-12-28 | 1984-07-16 | Komatsu Ltd | Oil-pressure closed circuit device for construction machine |
-
1986
- 1986-03-28 JP JP1986046857U patent/JPH0529260Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59122639A (en) * | 1982-12-28 | 1984-07-16 | Komatsu Ltd | Oil-pressure closed circuit device for construction machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0529260Y2 (en) | 1993-07-27 |
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