JPH0369360U - - Google Patents
Info
- Publication number
- JPH0369360U JPH0369360U JP1989127130U JP12713089U JPH0369360U JP H0369360 U JPH0369360 U JP H0369360U JP 1989127130 U JP1989127130 U JP 1989127130U JP 12713089 U JP12713089 U JP 12713089U JP H0369360 U JPH0369360 U JP H0369360U
- Authority
- JP
- Japan
- Prior art keywords
- pilot port
- switching valve
- switching
- traveling
- port
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Operation Control Of Excavators (AREA)
- Motor Power Transmission Devices (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Gearings (AREA)
Description
第１図は本考案の油圧回路図、第２図は従来例
の油圧回路図、第３図はモータ容量と駆動圧との
関係を示す線図である。
１……走行用可変容量油圧モータ、２……制御
シリンダ、３……ピストン、４……ロツド、５…
…容量可変機構、６……バネ、７……管路、８…
…切換弁、９……管路、１０……シヤツトル弁、
１１……バネ、１２……パイロツトポート、１３
……管路、１４……切換制御弁、１５……管路、
１６……圧力源、１７，１８，１９……パイロツ
トポート、２０……管路、２１……シヤトル弁、
２２……管路、２３……高低速切換用電磁弁、２
４，２５……油圧ポンプ、２６……走行用コント
ロールバルブ、２７，２８……管路、２９……バ
ネ、３０……管路、３１……スイツチ、３２……
電源バツテリ、３３……走行用油圧モータ駆動回
路。
FIG. 1 is a hydraulic circuit diagram of the present invention, FIG. 2 is a hydraulic circuit diagram of a conventional example, and FIG. 3 is a diagram showing the relationship between motor capacity and driving pressure. 1... variable displacement hydraulic motor for traveling, 2... control cylinder, 3... piston, 4... rod, 5...
...variable capacity mechanism, 6... spring, 7... conduit, 8...
...Switching valve, 9...Pipe line, 10...Shuttle valve,
11...Spring, 12...Pilot port, 13
...Pipe line, 14...Switching control valve, 15...Pipe line,
16... Pressure source, 17, 18, 19... Pilot port, 20... Pipe line, 21... Shuttle valve,
22...Pipe line, 23...Solenoid valve for high/low speed switching, 2
4, 25...Hydraulic pump, 26...Travel control valve, 27, 28...Pipe line, 29...Spring, 30...Pipe line, 31...Switch, 32...
Power battery, 33...Hydraulic motor drive circuit for travel.
Claims (1)
ダ２へ圧油を供給するための切換弁８のパイロツ
ト信号用ポート１２を圧力源１６またはタンクＴ
に選択的に連通させるための切換制御弁１４を備
え、該切換制御弁１４の一側には、管路２０を介
して走行モータ駆動圧を導くパイロツトポート１
７及び復帰バネ２９を、他側には前記切換弁８の
パイロツトポート１２への圧油供給管路１３に接
続されたパイロツトポート１８及び高低速切換用
電磁切換弁２３に連通する管路２２に接続された
パイロツトポート１９を備えてなることを特徴と
する走行用油圧モータの変速装置。 The pilot signal port 12 of the switching valve 8 for supplying pressure oil to the displacement control cylinder 2 of the variable displacement hydraulic motor 1 for traveling is connected to the pressure source 16 or the tank T.
A pilot port 1 is provided on one side of the switching control valve 14 for selectively communicating with the motor.
7 and a return spring 29 to a pilot port 18 connected to a pressure oil supply pipe 13 to a pilot port 12 of the switching valve 8 and a pipe line 22 communicating with a high/low speed switching electromagnetic switching valve 23 on the other side. A transmission for a hydraulic motor for traveling, characterized in that it is equipped with a pilot port 19 connected to it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989127130U JPH0369360U (en) | 1989-11-01 | 1989-11-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989127130U JPH0369360U (en) | 1989-11-01 | 1989-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0369360U true JPH0369360U (en) | 1991-07-10 |
Family
ID=31674905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989127130U Pending JPH0369360U (en) | 1989-11-01 | 1989-11-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0369360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007132670A1 (en) * | 2006-05-11 | 2007-11-22 | Nabtesco Corporation | Variable hydraulic motor drive device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127156A (en) * | 1980-12-09 | 1982-08-07 | Sundstrand Corp | Controller for variable volume type motor |
| JPS6354521B2 (en) * | 1980-05-26 | 1988-10-28 | Toshiba Ceramics Co |
-
1989
- 1989-11-01 JP JP1989127130U patent/JPH0369360U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354521B2 (en) * | 1980-05-26 | 1988-10-28 | Toshiba Ceramics Co | |
| JPS57127156A (en) * | 1980-12-09 | 1982-08-07 | Sundstrand Corp | Controller for variable volume type motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007132670A1 (en) * | 2006-05-11 | 2007-11-22 | Nabtesco Corporation | Variable hydraulic motor drive device |
| US8122714B2 (en) | 2006-05-11 | 2012-02-28 | Nabtesco Corporation | Variable hydraulic motor driving device |