JPH0412551U - - Google Patents
Info
- Publication number
- JPH0412551U JPH0412551U JP5302590U JP5302590U JPH0412551U JP H0412551 U JPH0412551 U JP H0412551U JP 5302590 U JP5302590 U JP 5302590U JP 5302590 U JP5302590 U JP 5302590U JP H0412551 U JPH0412551 U JP H0412551U
- Authority
- JP
- Japan
- Prior art keywords
- swing motor
- braking
- pressure oil
- rotational force
- rotary valve
- 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
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Jib Cranes (AREA)
Description
第１図は本考案の実施例を示す油圧回路図、第
２図は従来技術を示す油圧回路図である。
１…油圧ポンプ、２…方向切換弁、３…旋回モ
ータ、１１…パイロツト油圧ポンプ、１３…リモ
コン弁、１４，２０…高圧選択弁、１６…カツプ
リング、１７…ダンピングオイル、１８…回転弁
。
FIG. 1 is a hydraulic circuit diagram showing an embodiment of the present invention, and FIG. 2 is a hydraulic circuit diagram showing a conventional technique. DESCRIPTION OF SYMBOLS 1...Hydraulic pump, 2...Directional switching valve, 3...Swivel motor, 11...Pilot hydraulic pump, 13...Remote control valve, 14, 20...High pressure selection valve, 16...Coupling, 17...Dumping oil, 18...Rotary valve.
Claims (1)
を選択的に制動する制動手段により、該旋回モー
タが停止中の外力による回転を防止する旋回モー
タのブレーキ装置において、 作動軸に対する回転力の作用の有無により、前
記制動手段に対する圧油の供給又は解放を選択的
に実施する回転弁手段を設け、 前記旋回モータの回転軸と該回転弁手段の作動
軸とを、その内部に封入された液体の粘性により
回転力を緩やかに伝達するカツプリング手段によ
り連結したことを特徴とする旋回モータのブレー
キ装置。[Claims for Utility Model Registration] A braking device for a swing motor that prevents the swing motor from rotating due to an external force while it is stopped, by means of braking means that selectively brakes the rotation of the swing motor by supplying or releasing pressure oil, A rotary valve means is provided that selectively supplies or releases pressure oil to the braking means depending on the presence or absence of rotational force on the operating shaft, and the rotary shaft of the swing motor and the operating shaft of the rotary valve means are provided, A brake device for a swing motor, characterized in that the brake device is connected by a coupling means that gently transmits rotational force by the viscosity of a liquid sealed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5302590U JPH0726442Y2 (en) | 1990-05-23 | 1990-05-23 | Brake device for swing motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5302590U JPH0726442Y2 (en) | 1990-05-23 | 1990-05-23 | Brake device for swing motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0412551U true JPH0412551U (en) | 1992-01-31 |
| JPH0726442Y2 JPH0726442Y2 (en) | 1995-06-14 |
Family
ID=31573848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5302590U Expired - Lifetime JPH0726442Y2 (en) | 1990-05-23 | 1990-05-23 | Brake device for swing motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726442Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11331750B2 (en) | 2016-11-09 | 2022-05-17 | Komatsu Industries Corporation | Machining room |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101449012B1 (en) * | 2007-12-26 | 2014-10-13 | 두산인프라코어 주식회사 | Upper revolving braking device for construction heavy equipment |
| JP5683361B2 (en) * | 2011-04-01 | 2015-03-11 | 日立建機株式会社 | Hydraulic drive device for work machine |
-
1990
- 1990-05-23 JP JP5302590U patent/JPH0726442Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11331750B2 (en) | 2016-11-09 | 2022-05-17 | Komatsu Industries Corporation | Machining room |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0726442Y2 (en) | 1995-06-14 |
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