JPS631061U - - Google Patents
Info
- Publication number
- JPS631061U JPS631061U JP9479686U JP9479686U JPS631061U JP S631061 U JPS631061 U JP S631061U JP 9479686 U JP9479686 U JP 9479686U JP 9479686 U JP9479686 U JP 9479686U JP S631061 U JPS631061 U JP S631061U
- Authority
- JP
- Japan
- Prior art keywords
- brake
- revolving body
- swing motor
- parking
- construction machine
- 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 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Jib Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
- Braking Systems And Boosters (AREA)
Description
第１図および第２図は本考案ブレーキ装置の油
圧回路図、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，
３′，４，４′……ブレーキ弁、３１，３２……
ブレーキ弁、５，５′……旋回切換弁、６……電
磁弁、７……油圧力作用部、８……パイロツトポ
ンプ、１０……電気回路、１７……リモートコン
トロール弁、２８……パイロツト切換弁。
1 and 2 are hydraulic circuit diagrams of the brake system of the present invention, FIG. 3 is a hydraulic circuit diagram of another embodiment of the present invention, and FIG. 4 is a hydraulic circuit diagram of the prior art. 1...brake mechanism, 2...swivel motor, 3,
3', 4, 4'... Brake valve, 31, 32...
Brake valve, 5, 5'...Swivel switching valve, 6...Solenoid valve, 7...Hydraulic pressure acting part, 8...Pilot pump, 10...Electric circuit, 17...Remote control valve, 28...Pilot switching valve.
Claims (1)
ばね力にてブレーキ作動し、油圧力にてブレーキ
解除がなされる如きブレーキ機構をそなえた建設
機械の旋回体パーキング用ブレーキ装置において
、旋回モータの作動停止時にはその旋回モータの
入口ポートと出口ポートとを連通させ、また旋回
モータ作動時にはリリーフ機能をはたらかせるこ
とが可能なブレーキ弁を旋回モータの入口ポート
と出口ポート間に設けるとともに、上記ブレーキ
弁のそれぞれ外部信号受部を電気回路内ソレノイ
ド出力側、またはパイロツトポンプ吐出側へ接続
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 device for parking a revolving body of a construction machine, which has an upper revolving body and is equipped with a brake mechanism 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, A brake valve is provided between the inlet port and the outlet port of the swing motor, which allows communication between the inlet port and the outlet port of the swing motor when the swing motor is stopped, and which functions as a relief function when the swing motor is in operation; A brake device for parking a revolving body of a top-swing type construction machine, characterized in that the external signal receiving portion of each of the brake valves is connected to a solenoid output side in an electric circuit or a pilot pump discharge side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9479686U JPS631061U (en) | 1986-06-20 | 1986-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9479686U JPS631061U (en) | 1986-06-20 | 1986-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS631061U true JPS631061U (en) | 1988-01-06 |
Family
ID=30958618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9479686U Pending JPS631061U (en) | 1986-06-20 | 1986-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS631061U (en) |
-
1986
- 1986-06-20 JP JP9479686U patent/JPS631061U/ja active Pending