CA1171759A - System and method for controlling the elevation of a boom hoist device - Google Patents
System and method for controlling the elevation of a boom hoist deviceInfo
- Publication number
- CA1171759A CA1171759A CA000392328A CA392328A CA1171759A CA 1171759 A CA1171759 A CA 1171759A CA 000392328 A CA000392328 A CA 000392328A CA 392328 A CA392328 A CA 392328A CA 1171759 A CA1171759 A CA 1171759A
- Authority
- CA
- Canada
- Prior art keywords
- valve
- fluid
- flow
- raising
- cylinder means
- 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
- 238000000034 method Methods 0.000 title abstract description 3
- 239000012530 fluid Substances 0.000 claims abstract description 69
- 238000004891 communication Methods 0.000 claims description 18
- 230000006854 communication Effects 0.000 claims description 18
- 230000007935 neutral effect Effects 0.000 description 3
- 241001052209 Cylinder Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/422—Drive systems for bucket-arms, front-end loaders, dumpers or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Jib Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US223,870 | 1981-01-09 | ||
US06/223,870 US4367673A (en) | 1981-01-09 | 1981-01-09 | System and method for controlling the elevation of a boom hoist device |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1171759A true CA1171759A (en) | 1984-07-31 |
Family
ID=22838301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000392328A Expired CA1171759A (en) | 1981-01-09 | 1981-12-15 | System and method for controlling the elevation of a boom hoist device |
Country Status (11)
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3216580A1 (de) * | 1981-05-07 | 1983-02-24 | Hiab-Foco AB, 82401 Hudiksvall | Lasthalte- und senkbremsventil |
US4522109A (en) * | 1983-11-21 | 1985-06-11 | J. I. Case Company | Leak-detecting hydraulic system |
US5116188A (en) * | 1987-09-16 | 1992-05-26 | Kabushiki Kaisha Kobe Seiko Sho | Vibration suppressing device for wheeled construction equipment |
JPH0662269B2 (ja) * | 1989-04-21 | 1994-08-17 | 株式会社神戸製鋼所 | 移動式クレーンの変位抑制装置 |
JPH0662268B2 (ja) * | 1989-04-21 | 1994-08-17 | 株式会社神戸製鋼所 | 移動式クレーンの変位抑制装置 |
JPH0639317B2 (ja) * | 1989-09-09 | 1994-05-25 | 株式会社神戸製鋼所 | 移動式クレーンの変位抑制機構 |
JPH0815998B2 (ja) * | 1989-10-14 | 1996-02-21 | 株式会社神戸製鋼所 | ホイール式クレーンの振動抑制装置 |
AT398068B (de) * | 1990-07-09 | 1994-09-26 | Bauer & Co Gmbh Reform Werke | Umsteuerbare hydraulikanlage |
DE9417904U1 (de) * | 1994-11-08 | 1995-08-03 | Ec Engineering + Consulting Spezialmaschinen Gmbh, 89079 Ulm | Teleskopausleger |
SE510463C2 (sv) * | 1996-11-26 | 1999-05-25 | Pos Line Ab | Förfarande och anordning för att eliminera kolvstångsrusning vid start av pneumatisk motor |
GB2365407B (en) * | 2000-05-25 | 2003-10-08 | Bamford Excavators Ltd | Hydraulic system for wheeled loader |
SE526720C2 (sv) * | 2003-05-28 | 2005-10-25 | Volvo Constr Equip Holding Se | System och förfarande för förflyttning av ett redskap hos ett fordon |
DE10336684A1 (de) * | 2003-08-09 | 2005-03-03 | Deere & Company, Moline | Hydraulische Steueranordnung für eine mobile Arbeitsmaschine |
DE102004012362A1 (de) | 2004-03-13 | 2005-09-22 | Deere & Company, Moline | Hydraulische Anordnung |
CN103112382B (zh) * | 2013-03-19 | 2015-08-26 | 三一矿机有限公司 | 一种防拔缸控制装置及矿用自卸车 |
CN109292643B (zh) * | 2018-10-30 | 2020-07-31 | 广东南桂起重机械有限公司 | 一种全自动智能立体仓储起重机 |
CN115744632A (zh) * | 2022-10-27 | 2023-03-07 | 湖南三一中型起重机械有限公司 | 起重机液压控制系统和起重机 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2328980A (en) * | 1942-05-16 | 1943-09-07 | Vickers Inc | Power transmission |
US3033168A (en) * | 1960-10-31 | 1962-05-08 | New York Air Brake Co | Hydraulic mechanism |
US3381587A (en) * | 1965-09-10 | 1968-05-07 | Deere & Co | Hydraulic control system |
US3523490A (en) * | 1968-03-28 | 1970-08-11 | Caterpillar Tractor Co | Anti-cavitation mechanism for fluid driven systems |
US3650425A (en) * | 1970-06-12 | 1972-03-21 | Sperry Rand Corp | Bucket loader control system |
US3887160A (en) * | 1970-09-18 | 1975-06-03 | Sperry Rand Australia Ltd | Fluid operated actuator for movable members |
US3788401A (en) * | 1972-07-17 | 1974-01-29 | Caterpillar Tractor Co | Hydraulic circuit with valve to provide semi-float control of a dozer blade |
US3908515A (en) * | 1973-09-10 | 1975-09-30 | Caterpillar Tractor Co | Hydraulic circuit with selectively actuatable float control |
US4018350A (en) * | 1975-03-17 | 1977-04-19 | Pettibone Corporation | Hydraulic cyliner systems with safeguarded float action |
US4034815A (en) * | 1975-03-20 | 1977-07-12 | Caterpillar Tractor Co. | Blade lift float circuit for motor graders |
US4024796A (en) * | 1975-09-24 | 1977-05-24 | Caterpillar Tractor Co. | Float control electrical circuit for a blade |
US4039085A (en) * | 1976-06-10 | 1977-08-02 | Koehring Company | Crane with a pivoted boom and a float valve therefor |
US4167892A (en) * | 1977-04-07 | 1979-09-18 | Caterpillar Tractor Co. | Load check with mechanical venting means |
US4165675A (en) * | 1977-04-07 | 1979-08-28 | Caterpillar Tractor Co. | Load check valve cylinder mounted |
-
1981
- 1981-01-09 US US06/223,870 patent/US4367673A/en not_active Expired - Fee Related
- 1981-12-15 CA CA000392328A patent/CA1171759A/en not_active Expired
- 1981-12-21 GR GR66852A patent/GR75900B/el unknown
- 1981-12-24 AU AU78887/81A patent/AU7888781A/en not_active Abandoned
-
1982
- 1982-01-04 ZA ZA8213A patent/ZA8213B/xx unknown
- 1982-01-07 GB GB8200348A patent/GB2090811A/en not_active Withdrawn
- 1982-01-07 FR FR8200137A patent/FR2497784A1/fr not_active Withdrawn
- 1982-01-07 BE BE0/207006A patent/BE891719A/fr not_active IP Right Cessation
- 1982-01-08 NL NL8200055A patent/NL8200055A/nl not_active Application Discontinuation
- 1982-01-08 BR BR8200089A patent/BR8200089A/pt unknown
- 1982-01-11 DE DE19823200817 patent/DE3200817A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GR75900B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1984-08-02 |
NL8200055A (nl) | 1982-08-02 |
US4367673A (en) | 1983-01-11 |
DE3200817A1 (de) | 1982-07-29 |
BE891719A (fr) | 1982-04-30 |
ZA8213B (en) | 1982-11-24 |
BR8200089A (pt) | 1982-11-03 |
FR2497784A1 (fr) | 1982-07-16 |
AU7888781A (en) | 1982-07-15 |
GB2090811A (en) | 1982-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEC | Expiry (correction) | ||
MKEX | Expiry |