JPH03122150U - - Google Patents
Info
- Publication number
- JPH03122150U JPH03122150U JP3199390U JP3199390U JPH03122150U JP H03122150 U JPH03122150 U JP H03122150U JP 3199390 U JP3199390 U JP 3199390U JP 3199390 U JP3199390 U JP 3199390U JP H03122150 U JPH03122150 U JP H03122150U
- Authority
- JP
- Japan
- Prior art keywords
- travel
- straight
- hydraulic circuit
- valve
- hydraulic
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Operation Control Of Excavators (AREA)
Description
第１図は本考案の直進補償装置の油圧回路図、
第２図は本考案の走行直進弁の断面図、第３図は
本考案の走行直進弁のスイベルジヨイントへの装
着説明図、第４図は従来の直進補償装置の油圧回
路図、第５図は従来の制御弁の側面図、第６図は
従来の制御弁の正面図、第７図は従来の制御弁の
平面断面図、第８図は従来の制御弁とスイベルジ
ヨイント配管説明図。
１……第１ポンプ、２……第２ポンプ、３……
左走行モータ、４……右走行モータ、１０……制
御弁、１１……第１制御弁、１２……第２制御弁
、１３……左走行操作弁、１４……右走行操作弁
、２０……スイベルジヨイント、２１……ロータ
、２２……シヤフト、３０……走行直進弁、３１
……ボデイ、３２……スプール、３３，３４，３
６……ランド、３５……環状溝、３７，３８……
ばね室。
Figure 1 is a hydraulic circuit diagram of the straight-line compensator of the present invention.
Fig. 2 is a sectional view of the straight-travel valve of the present invention, Fig. 3 is an explanatory diagram of mounting the straight-travel valve of the present invention on a swivel joint, Fig. 4 is a hydraulic circuit diagram of a conventional straight-line compensator, and Fig. 5 Figure 6 is a side view of a conventional control valve, Figure 6 is a front view of a conventional control valve, Figure 7 is a cross-sectional plan view of a conventional control valve, and Figure 8 is an explanatory diagram of a conventional control valve and swivel joint piping. . 1...first pump, 2...second pump, 3...
Left travel motor, 4...Right travel motor, 10...Control valve, 11...First control valve, 12...Second control valve, 13...Left travel operation valve, 14...Right travel operation valve, 20 ... Swivel joint, 21 ... Rotor, 22 ... Shaft, 30 ... Straight travel valve, 31
...Body, 32...Spool, 33, 34, 3
6... Land, 35... Annular groove, 37, 38...
Spring chamber.
Claims (1)
直進補償回路を、走行操作弁と走行モータとを接
続する油圧回路において構成し、直進補償のため
の走行直進弁を上部旋回体と下部走行体との油圧
回路の接続に用いられるスイベルジヨイントに装
着せることを特徴とする油圧パワーシヨベルの直
進補償装置。 The straight travel compensation circuit in the travel hydraulic circuit of a hydraulic power shovel is configured in the hydraulic circuit that connects the travel operation valve and the travel motor, and the straight travel valve for straight travel compensation is configured in the hydraulic circuit between the upper rotating body and the lower traveling body. A straight-travel compensation device for a hydraulic power shovel, characterized by being attached to a swivel joint used for connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3199390U JPH03122150U (en) | 1990-03-28 | 1990-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3199390U JPH03122150U (en) | 1990-03-28 | 1990-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122150U true JPH03122150U (en) | 1991-12-13 |
Family
ID=31534821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3199390U Pending JPH03122150U (en) | 1990-03-28 | 1990-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122150U (en) |
-
1990
- 1990-03-28 JP JP3199390U patent/JPH03122150U/ja active Pending