JPS61129906U - - Google Patents
Info
- Publication number
- JPS61129906U JPS61129906U JP1985012113U JP1211385U JPS61129906U JP S61129906 U JPS61129906 U JP S61129906U JP 1985012113 U JP1985012113 U JP 1985012113U JP 1211385 U JP1211385 U JP 1211385U JP S61129906 U JPS61129906 U JP S61129906U
- Authority
- JP
- Japan
- Prior art keywords
- variable displacement
- displacement motor
- drain circuit
- actuator
- switching 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
- 238000006073 displacement reaction Methods 0.000 claims 9
- 238000010276 construction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Gearings (AREA)
- Operation Control Of Excavators (AREA)
- Jib Cranes (AREA)
- Hydraulic Motors (AREA)
Description
第１図は本考案の可変容量モータのドレン回路
の第１実施例を示す回路図、第２図は本考案の第
２実施例と第１図の一点鎖線で囲まれた部分を斜
軸モータに応用した場合の例で示した断面図、第
３図は本考案の第３実施例を示す回路図、第４図
は従来の可変容量モータのドレン回路の例を示す
回路図、第５図は第４図の一点鎖線で囲まれた部
分斜軸モータを例にして具体的に示した断面図で
ある。
１……可変容量モータ、４……タンク、５，２
６……アクチユエータ、６，２７……切換弁、１
１……センタージヨイント、２０，２４……ドレ
ン回路、２１……合流点、２２……逆止弁。
Fig. 1 is a circuit diagram showing a first embodiment of the drain circuit of a variable capacity motor of the present invention, and Fig. 2 is a circuit diagram showing a second embodiment of the present invention and the portion surrounded by the dashed line in Fig. 1 is a diagonal shaft motor. 3 is a circuit diagram showing a third embodiment of the present invention, FIG. 4 is a circuit diagram showing an example of a drain circuit of a conventional variable capacity motor, and FIG. 4 is a sectional view specifically showing the partial oblique shaft motor surrounded by the dashed line in FIG. 4 as an example. 1... Variable capacity motor, 4... Tank, 5, 2
6... Actuator, 6, 27... Switching valve, 1
1... Center joint, 20, 24... Drain circuit, 21... Merging point, 22... Check valve.
Claims (1)
するアクチユエータ及び、そのアクチユエータを
制御する切換弁を設け、その切換弁のタンクポー
トを可変容量モータのドレン回路に接続し、その
ドレン回路をセンタージヨイントを通して旋回体
上のタンクに接続させた建設機械における可変容
量モータのドレン回路において、上記切換弁のタ
ンクポートが接続する合流点より可変容量モータ
側のドレン回路に、可変容量モータ側から合流点
側への流のみを許す逆上弁を設けたことを特徴と
する可変容量モータのドレン回路。 ２ 上記逆上弁を可変容量モータ内部のドレン回
路に組み込んだことを特徴とする実用新案登録請
求の範囲第１項記載の可変容量モータのドレン回
路回路。[Scope of Claim for Utility Model Registration] 1. An actuator for varying the displacement of a variable displacement motor for traveling and a switching valve for controlling the actuator are provided, and a tank port of the switching valve is connected to a drain circuit of the variable displacement motor, In the drain circuit of a variable displacement motor in a construction machine whose drain circuit is connected to a tank on a revolving body through a center joint, a variable displacement A drain circuit for a variable displacement motor, characterized by being provided with a reverse valve that allows flow only from the displacement motor side to the merging point side. 2. A drain circuit for a variable displacement motor according to claim 1, wherein the reverse valve is incorporated in a drain circuit inside the variable displacement motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985012113U JPH0417854Y2 (en) | 1985-02-01 | 1985-02-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985012113U JPH0417854Y2 (en) | 1985-02-01 | 1985-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61129906U true JPS61129906U (en) | 1986-08-14 |
| JPH0417854Y2 JPH0417854Y2 (en) | 1992-04-21 |
Family
ID=30494867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985012113U Expired JPH0417854Y2 (en) | 1985-02-01 | 1985-02-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417854Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011179603A (en) * | 2010-03-02 | 2011-09-15 | Nippon Sharyo Seizo Kaisha Ltd | Hydraulic motor driving device |
| JP2016200052A (en) * | 2015-04-09 | 2016-12-01 | ナブテスコ株式会社 | Hydraulic motor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175605A (en) * | 1983-03-22 | 1984-10-04 | Kayaba Ind Co Ltd | Control device for variable hydraulic actuator |
-
1985
- 1985-02-01 JP JP1985012113U patent/JPH0417854Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175605A (en) * | 1983-03-22 | 1984-10-04 | Kayaba Ind Co Ltd | Control device for variable hydraulic actuator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011179603A (en) * | 2010-03-02 | 2011-09-15 | Nippon Sharyo Seizo Kaisha Ltd | Hydraulic motor driving device |
| JP2016200052A (en) * | 2015-04-09 | 2016-12-01 | ナブテスコ株式会社 | Hydraulic motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0417854Y2 (en) | 1992-04-21 |
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