ES482508A1 - Un aparato hidraulico, perfeccionado. - Google Patents
Un aparato hidraulico, perfeccionado.Info
- Publication number
- ES482508A1 ES482508A1 ES482508A ES482508A ES482508A1 ES 482508 A1 ES482508 A1 ES 482508A1 ES 482508 A ES482508 A ES 482508A ES 482508 A ES482508 A ES 482508A ES 482508 A1 ES482508 A1 ES 482508A1
- Authority
- ES
- Spain
- Prior art keywords
- excavator
- relief valve
- valve
- bucket
- conjointly
- 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.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Shovels (AREA)
Abstract
Un aparato hidráulico perfeccionado de un dispositivo de manipulación de material que comprende un aguilón de elevación hecho pivotar alrededor de un eje horizontal para hacer subir y bajar una parte exterior del aguilón elevador, un útil acoplado a pivotamiento al aguilón elevador y medios para hacer funcionar dicho útil, en el que el aparato incluye medios hidráulicos destinados para hacer funcionar el aguilón de elevación y el útil y para aumentar selectivamente la capacidad de elevación del aguilón de elevación mientras se inhibe el uso del útil para operaciones normales.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/934,720 US4218837A (en) | 1978-08-21 | 1978-08-21 | High lift hydraulic system for an excavator |
Publications (1)
Publication Number | Publication Date |
---|---|
ES482508A1 true ES482508A1 (es) | 1980-02-16 |
Family
ID=25465957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES482508A Expired ES482508A1 (es) | 1978-08-21 | 1979-07-16 | Un aparato hidraulico, perfeccionado. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4218837A (es) |
JP (1) | JPS5530096A (es) |
AU (1) | AU4981279A (es) |
DE (1) | DE2933232A1 (es) |
ES (1) | ES482508A1 (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6014817Y2 (ja) * | 1979-04-18 | 1985-05-11 | 株式会社小松製作所 | 掘削積込機の掘削積込装置 |
CH643620A5 (de) * | 1979-11-28 | 1984-06-15 | Ziegler Ag | Vorrichtung zur parallelfuehrung des loeffels eines hydraulikbaggers. |
US4365429A (en) * | 1981-11-18 | 1982-12-28 | Bucyrus-Erie Company | Maximum lift system for hydraulic hoe |
JPH077506Y2 (ja) * | 1983-10-17 | 1995-02-22 | 株式会社三ツ葉電機製作所 | 自動車用窓開閉装置 |
JPH07116731B2 (ja) * | 1989-02-23 | 1995-12-13 | 油谷重工株式会社 | 油圧式建設・作業用機械の油圧回路 |
US5486084A (en) * | 1993-06-07 | 1996-01-23 | Raymond F. Pitman | Multiple purpose material handling and working apparatus |
US6260357B1 (en) | 1998-11-30 | 2001-07-17 | Caterpillar Inc. | Quick coupler control system |
US6450081B1 (en) | 1999-08-09 | 2002-09-17 | Caterpillar Inc. | Hydraulic system for controlling an attachment to a work machine such as thumb attachment used on an excavator |
US6779961B2 (en) * | 2001-10-29 | 2004-08-24 | Ingersoll-Rand Company | Material handler with electronic load chart |
ITTO20040053A1 (it) * | 2004-02-03 | 2004-05-03 | Fiat Kobelco Construction Mach | Metodo per configurare il braccio operativo di una macchina movimento terra, macchina provvista di un braccio operativo configurabile, e gruppo adattatore per configurare un braccio operativo |
CN104254694B (zh) | 2012-01-05 | 2017-05-10 | 派克汉尼芬公司 | 带有浮动功能的电液系统 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA885292A (en) * | 1971-11-09 | F. Osborn Ronald | Automatic back hoe control system | |
US2969844A (en) * | 1957-12-26 | 1961-01-31 | Hamrick Wellington | Earth boring implement |
FR1590140A (es) * | 1968-08-02 | 1970-04-13 | ||
US3583585A (en) * | 1969-06-10 | 1971-06-08 | Tyrone Hydraulics | Hydraulic control system for a backhoe |
US3606049A (en) * | 1969-11-12 | 1971-09-20 | Harnischfeger Corp | Horsepower limiting hydraulic control circuit |
FR2142291A5 (es) * | 1971-06-16 | 1973-01-26 | Richier Sa | |
US3883023A (en) * | 1972-06-12 | 1975-05-13 | Koehring Co | Control means for a pair of fluid motors |
GB1403046A (en) * | 1972-09-08 | 1975-08-13 | Weimar Kombinat Veb | Load factor safety mechanism |
US3934742A (en) * | 1973-12-26 | 1976-01-27 | Hydraulic Industries, Inc. | Valve mechanism for automatic control of a number of fluid motors |
US3922745A (en) * | 1974-02-14 | 1975-12-02 | Elgin Sweeping Services Inc | Broom device |
SE396108B (sv) * | 1975-03-12 | 1977-09-05 | Akermans Verkstad Ab | Vinkelmetdon for grevarmen vid grevmaskiner |
-
1978
- 1978-08-21 US US05/934,720 patent/US4218837A/en not_active Expired - Lifetime
-
1979
- 1979-07-16 ES ES482508A patent/ES482508A1/es not_active Expired
- 1979-08-10 AU AU49812/79A patent/AU4981279A/en not_active Abandoned
- 1979-08-15 JP JP10321079A patent/JPS5530096A/ja active Pending
- 1979-08-16 DE DE19792933232 patent/DE2933232A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US4218837A (en) | 1980-08-26 |
JPS5530096A (en) | 1980-03-03 |
DE2933232A1 (de) | 1980-03-06 |
AU4981279A (en) | 1980-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19990601 |