JPS604654U - Power shovel hydraulic circuit system - Google Patents
Power shovel hydraulic circuit systemInfo
- Publication number
- JPS604654U JPS604654U JP9577583U JP9577583U JPS604654U JP S604654 U JPS604654 U JP S604654U JP 9577583 U JP9577583 U JP 9577583U JP 9577583 U JP9577583 U JP 9577583U JP S604654 U JPS604654 U JP S604654U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- travel
- supplies
- operation valve
- hydraulic circuit
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のパワーショベルの油圧操作回路装置にお
ける左右走行モータと作業機アクチュエで夕との説明図
、第２図は従来のパワーショベルの油圧操作回路装置の
構成説明図、第３図は本考案−実施例の構成説明図、第
４図は本考案の他の実施例の構成説明図である。
１．２はポンプ、１２．３０は走行操作弁、５１は走行
直進切換弁、８２は走行シャトル弁。Fig. 1 is an explanatory diagram of the left and right travel motors and work equipment actuators in a conventional hydraulic operating circuit device of a power shovel, Fig. 2 is an explanatory diagram of the configuration of a conventional hydraulic operating circuit device of a power excavator, and Fig. 3 is an explanatory diagram of the configuration of the hydraulic operating circuit device of a conventional power excavator. FIG. 4 is a diagram illustrating the configuration of another embodiment of the present invention. 1.2 is a pump, 12.30 is a travel operation valve, 51 is a travel straight switching valve, and 82 is a travel shuttle valve.
Claims (1)
ンプ１と、他方の操作弁ブロックＤに流量の供給を行う
第２油圧ポンプ２と、一方の操作弁ブロックＢに設けら
れて他の操作弁とパラレル接続され且つ最後列に位置す
る一方の走行操作弁１２と、他方の操作弁ブロックＤに
設けられて他の操作弁とパラレル接続され且つ最前列に
位置する他方の走行操作弁３０と、切換作動時に他方の
ポンプ２からの流量を両走行操作弁１２．３０に供給す
ると共に一方のポンプ１からの流量を作業機用操作弁に
供給する走行直進切換弁５１と、走行直進切換弁５１の
切換えを行う走行シャトル弁８２とを備えたことを特徴
とするパワーショベルの油圧回路装置。A first hydraulic pump 1 that supplies flow to one operation valve block B, a second hydraulic pump 2 that supplies flow to the other operation valve block D, and one operation valve block B is provided with One travel operation valve 12 is connected in parallel with other operation valves and is located in the last row, and the other travel operation valve is provided in the other operation valve block D and is connected in parallel with other operation valves and is located in the front row. valve 30, a travel straight switching valve 51 that supplies the flow rate from the other pump 2 to both travel operation valves 12, 30 and supplies the flow rate from one pump 1 to the work equipment operation valve when switching is activated; A hydraulic circuit device for a power shovel, comprising a travel shuttle valve 82 for switching a straight-line switching valve 51.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9577583U JPS604654U (en) | 1983-06-23 | 1983-06-23 | Power shovel hydraulic circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9577583U JPS604654U (en) | 1983-06-23 | 1983-06-23 | Power shovel hydraulic circuit system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS604654U true JPS604654U (en) | 1985-01-14 |
| JPH0352285Y2 JPH0352285Y2 (en) | 1991-11-12 |
Family
ID=30228557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9577583U Granted JPS604654U (en) | 1983-06-23 | 1983-06-23 | Power shovel hydraulic circuit system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS604654U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61165429A (en) * | 1985-01-17 | 1986-07-26 | Yutani Juko Kk | Hydraulic circuit for construction machine |
| JPS61165428A (en) * | 1985-01-17 | 1986-07-26 | Yutani Juko Kk | Hydraulic circuit for construction machine |
| JPS6272356U (en) * | 1985-10-16 | 1987-05-09 | ||
| JPS62107124A (en) * | 1985-10-15 | 1987-05-18 | Yutani Juko Kk | Hydraulic circuit for construction machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227128A (en) * | 1975-08-25 | 1977-03-01 | Caterpillar Tractor Co | Synchronous hydraulic driving system for vehicle |
| JPS5370284A (en) * | 1976-12-03 | 1978-06-22 | Caterpillar Tractor Co | Hydraulic device |
-
1983
- 1983-06-23 JP JP9577583U patent/JPS604654U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227128A (en) * | 1975-08-25 | 1977-03-01 | Caterpillar Tractor Co | Synchronous hydraulic driving system for vehicle |
| JPS5370284A (en) * | 1976-12-03 | 1978-06-22 | Caterpillar Tractor Co | Hydraulic device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61165429A (en) * | 1985-01-17 | 1986-07-26 | Yutani Juko Kk | Hydraulic circuit for construction machine |
| JPS61165428A (en) * | 1985-01-17 | 1986-07-26 | Yutani Juko Kk | Hydraulic circuit for construction machine |
| JPS62107124A (en) * | 1985-10-15 | 1987-05-18 | Yutani Juko Kk | Hydraulic circuit for construction machine |
| JPS6272356U (en) * | 1985-10-16 | 1987-05-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0352285Y2 (en) | 1991-11-12 |
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