JPS6080152U - Power shovel hydraulic circuit - Google Patents
Power shovel hydraulic circuitInfo
- Publication number
- JPS6080152U JPS6080152U JP15727583U JP15727583U JPS6080152U JP S6080152 U JPS6080152 U JP S6080152U JP 15727583 U JP15727583 U JP 15727583U JP 15727583 U JP15727583 U JP 15727583U JP S6080152 U JPS6080152 U JP S6080152U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic circuit
- travel
- power shovel
- circuit diagram
- pressure oil
- 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Ｉはパワーショベルの側面図、第１図■はその背
面図、第２図は従来のパワーショベルの油圧回路図、第
３図は本案に係るパワーショベルの油圧回路の一実施例
の油圧回路図、第４図は路面掘削性を改善する油圧回路
の一例を示す油路回路図、第５図はそれに走行連通弁を
適用した油圧回路図、第６図は走行連通弁の作用説明図
である。
１０．１１．’１７．２８・・・他のアクチュエータ、
１３．′１４・・・ポンプ、４０．４１″・・・走行モ
ータ、５０・・・走行連通弁。
゛ 補正 昭５９．１２．１９
考案の名称を次のように補領する。
■考案の名称、パワーショベルの油圧回路実用新案登録
請求の範囲、図面の簡単な説明を−次のように補正する
。
Ｏ実用新案登録請求の範囲
左右のポンプからの圧油を左右の走行モータへ圧油を供
給する各走行用操作弁カー、他のアクチュ゛ エータへ
圧油を供給する操作弁より各々上流側にあるパワーショ
ベルの油圧回路において、前記左右のポンプから前記左
右の走行モータへ圧油を供給している直進時に前記他の
アクチュエータを操作すると走行直進性を保つように片
側のポンプの吐出油全部と他方のポンプの一部分の吐串
油を左右走行モータにパラレルに供給し、他方のポンプ
−の残りの吐出油を前記他のアクチュエータへ供給でき
るように左右のポンプの圧油供給通路を変更する走行連
通弁を片側走行用操作弁の上流側に具えていることを特
徴としたパワーショベルの油圧回路。
図面の簡単な説明
第１図１−はパワ」ショベルの側面図、第１図■はその
背面図、第２図は従来のパワーショベルの油圧回路図、
第３図は本案番ヒ係るパワーショベルの油圧回路の一実
施例の油圧回路図、第４図は路 −面掘削性を改善す
る油圧回路の９例を示す油圧回路図、第５図はそれに走
行連通弁を適用した油圧回路図、第６図は走行連通弁の
作用説明図である。
１０．１１，１７，２８−・・他のアクチュエータ、１
３．１４・・・ポンプ、４０，４１・・・走行モータ、
５０・・・走行連通弁。Fig. 1 I is a side view of the power shovel, Fig. 1 ■ is its rear view, Fig. 2 is a hydraulic circuit diagram of a conventional power shovel, and Fig. 3 is an embodiment of the hydraulic circuit of a power shovel according to the present invention. Hydraulic circuit diagram. Fig. 4 is an oil passage circuit diagram showing an example of a hydraulic circuit that improves road excavation performance. Fig. 5 is a hydraulic circuit diagram to which a travel communication valve is applied. Fig. 6 is an explanation of the operation of the travel communication valve. It is a diagram. 10.11. '17.28...Other actuators,
13. '14... Pump, 40.41''... Travel motor, 50... Travel communication valve. ゛ Amendment December 19, 1982 The name of the invention is supplemented as follows. ■ Name of the invention, The scope of claims for utility model registration of power excavator hydraulic circuit and a brief explanation of the drawings shall be amended as follows:O Scope of claims for utility model registration Supply pressure oil from left and right pumps to left and right travel motors In the hydraulic circuit of the excavator, which is located upstream from each operating valve for driving and the operating valve that supplies pressure oil to other actuators, pressurized oil is supplied from the left and right pumps to the left and right traveling motors. When the other actuator is operated when the vehicle is traveling straight, all of the oil discharged from one pump and a portion of the skewer oil from the other pump are supplied in parallel to the left and right travel motors in order to maintain straightness of travel. Hydraulic pressure of a power shovel, characterized in that a travel communication valve is provided upstream of a one-sided travel operation valve for changing the pressure oil supply passages of the left and right pumps so that the remaining discharged oil can be supplied to the other actuator. Circuit. Brief explanation of the drawings Figure 1 1- is a side view of the power shovel, Figure 1 ■ is its rear view, Figure 2 is the hydraulic circuit diagram of a conventional power shovel,
Fig. 3 is a hydraulic circuit diagram of one embodiment of the hydraulic circuit of the power excavator according to the present invention, Fig. 4 is a hydraulic circuit diagram showing nine examples of hydraulic circuits for improving road-surface excavation performance, and Fig. 5 is a hydraulic circuit diagram showing nine examples of hydraulic circuits for improving road-surface excavation performance. A hydraulic circuit diagram to which the travel communication valve is applied, FIG. 6 is an explanatory diagram of the operation of the travel communication valve. 10.11, 17, 28--Other actuators, 1
3.14...Pump, 40,41...Travel motor,
50... Travel communication valve.
Claims (1)
外のアクチュエータへ供給するパワーシ、ヨベルの油圧
回路において、前記左右のポンプから前記左右の走行モ
ータへ圧油を供給している直進時に前記能のアクチュエ
ータを操作すること走行直進性を保つように左右のポン
プの圧油供給通路を変更する走行連通弁を具えているこ
とを特徴としたパワーショベルの油圧回路。In a hydraulic circuit for a power system and a yawler that supplies pressure oil from the left and right pumps to the left and right travel motors and other actuators, the function is A hydraulic circuit for a power shovel characterized by having a travel communication valve that changes the pressure oil supply passage of the left and right pumps so as to operate the actuator of the pump and maintain straight travel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15727583U JPS6080152U (en) | 1983-10-13 | 1983-10-13 | Power shovel hydraulic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15727583U JPS6080152U (en) | 1983-10-13 | 1983-10-13 | Power shovel hydraulic circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6080152U true JPS6080152U (en) | 1985-06-04 |
| JPH0452288Y2 JPH0452288Y2 (en) | 1992-12-09 |
Family
ID=30346793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15727583U Granted JPS6080152U (en) | 1983-10-13 | 1983-10-13 | Power shovel hydraulic circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6080152U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5370284A (en) * | 1976-12-03 | 1978-06-22 | Caterpillar Tractor Co | Hydraulic device |
| JPS58146632A (en) * | 1982-02-24 | 1983-09-01 | Hitachi Constr Mach Co Ltd | Oil-pressure drive system for civil work and construction machinery |
-
1983
- 1983-10-13 JP JP15727583U patent/JPS6080152U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5370284A (en) * | 1976-12-03 | 1978-06-22 | Caterpillar Tractor Co | Hydraulic device |
| JPS58146632A (en) * | 1982-02-24 | 1983-09-01 | Hitachi Constr Mach Co Ltd | Oil-pressure drive system for civil work and construction machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0452288Y2 (en) | 1992-12-09 |
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