IE38051B1 - Improvements in or relating to hydraulic transmissions for driving machines provided with holding brakes - Google Patents
Improvements in or relating to hydraulic transmissions for driving machines provided with holding brakesInfo
- Publication number
- IE38051B1 IE38051B1 IE1345/73A IE134573A IE38051B1 IE 38051 B1 IE38051 B1 IE 38051B1 IE 1345/73 A IE1345/73 A IE 1345/73A IE 134573 A IE134573 A IE 134573A IE 38051 B1 IE38051 B1 IE 38051B1
- Authority
- IE
- Ireland
- Prior art keywords
- pressure
- brake
- motor
- fluid
- winch
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
- F16H39/02—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motors at a distance from liquid pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
- F16H63/3026—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or brakes
- F16H2063/3033—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or brakes the brake is actuated by springs and released by a fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4157—Control of braking, e.g. preventing pump over-speeding when motor acts as a pump
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S60/00—Power plants
- Y10S60/905—Winding and reeling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Braking Arrangements (AREA)
Abstract
A fluid pressure drive system for rotating a lifting device such as a winch includes a fluid motor having a drive shaft adapted to be connected to the winch which is engaged by a brake which may be actuated to stop the shaft by biasing means such as a spring. The fluid motor is driven by a pump which has a fluid pressure discharge connected to the motor which is also connected through a line to an accumulator. During pump operation the accumulator is charged with the pump operating pressure through a one way valve so that the accumulator stores the operating pressure during the operation of the motor to move the winch. The brake is released by forcing a fluid piston against the force of its biasing means to a releasing direction under the influence of actuating pressure which is supplied from a separate actuating pressure source. The actuating pressure source is connected through a control valve to a throttle and to a fluid pressure cylinder in which the fluid pressure piston which actuates the brake is movable. When the brake is applied the control valve is set so that the cylinder is vented to the atmosphere so that the biasing means may press the piston into an operative or brake engagement position. When the pump driving the fluid motor which operates the winch is stopped the control member is actuated to provide an actuating pressure connection through the throttle and to the control cylinder but also to a release valve for the accumulator pressure which is first connected to the line connected between the pump discharge and the motor to insure that the motor is held under operating pressure. The throttle in the line between the valve control and the brake control cylinder is set to regulate the pressure to the brake control cylinder in order that the brake may be released only after the accumulator pressure is communicated to the drive motor in order to insure that the drive motor is not subjected to the immediate loading of the winch would would cause a rapid unwinding of the winch.
[US3871714A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2240940A DE2240940C3 (en) | 1972-08-19 | 1972-08-19 | Hydrostatic transmission, especially for winches, hoisting winches, luffing winches or the like |
Publications (2)
Publication Number | Publication Date |
---|---|
IE38051L IE38051L (en) | 1974-02-19 |
IE38051B1 true IE38051B1 (en) | 1977-12-07 |
Family
ID=5854057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE1345/73A IE38051B1 (en) | 1972-08-19 | 1973-08-07 | Improvements in or relating to hydraulic transmissions for driving machines provided with holding brakes |
Country Status (12)
Country | Link |
---|---|
US (1) | US3871714A (en) |
JP (1) | JPS4958552A (en) |
CA (1) | CA985985A (en) |
DE (1) | DE2240940C3 (en) |
ES (1) | ES417839A1 (en) |
FR (1) | FR2196696A5 (en) |
GB (1) | GB1415767A (en) |
IE (1) | IE38051B1 (en) |
IT (1) | IT992227B (en) |
NL (1) | NL7310114A (en) |
SE (1) | SE392957B (en) |
ZA (1) | ZA735489B (en) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3967736A (en) * | 1974-11-21 | 1976-07-06 | Bush Manufacturing Company | Boom control system |
PL94143B1 (en) * | 1974-11-23 | 1977-07-30 | ||
JPS5279457A (en) * | 1975-12-26 | 1977-07-04 | Ebara Corp | Overrun preventing device of dual speed switching type freight handlin g winch |
US4017217A (en) * | 1976-02-26 | 1977-04-12 | Westinghouse Electric Corporation | Overspeed protection system |
US4175389A (en) * | 1978-02-06 | 1979-11-27 | Samuel Shiber | Hydromechanical transmission |
JPS56165696A (en) * | 1980-05-26 | 1981-12-19 | Komatsu Mfg Co Ltd | Brake gear for oil pressure type crane winch |
NO151129C (en) * | 1980-07-14 | 1985-02-13 | Bryne Mek Verksted | VALVE DEVICE, SPECIFIC FOR BRAKING HYDRAULIC ENGINES WITH MECHANICAL BRAKE |
JPS5842592A (en) * | 1981-08-31 | 1983-03-12 | 新明和工業株式会社 | Controller for winch of crane car |
US4448398A (en) * | 1982-03-01 | 1984-05-15 | Garlock Equipment Company | Winch control system |
JPS59501256A (en) * | 1982-07-12 | 1984-07-19 | キヤタピラ− トラクタ− コンパニ− | Brake control system with metering pump relief |
US4458791A (en) * | 1982-07-12 | 1984-07-10 | Caterpillar Tractor Co. | Brake control system with metering pump relief |
US4534598A (en) * | 1983-04-22 | 1985-08-13 | Fmc Corporation | Hydraulic disk brake circuit for crane draw works |
US4665696A (en) * | 1984-04-18 | 1987-05-19 | Dynamic Hydraulic Systems, Inc. | Hydraulically operated hoist for containerized freight or the like |
DE3607367C2 (en) * | 1986-03-06 | 1995-06-22 | Teves Gmbh Alfred | Hydraulic brake system for motor vehicles |
US5002259A (en) * | 1987-12-22 | 1991-03-26 | Helper Winch, Inc. | Power winch system |
FI97612C (en) * | 1995-05-19 | 1997-01-27 | Tamrock Oy | An arrangement for guiding a rock drilling rig winch |
US5806838A (en) * | 1995-11-30 | 1998-09-15 | Kalve; Atle | Hydraulic system for driving a winch during quartering and lifting modes |
DE19654547C2 (en) * | 1996-12-27 | 1999-03-18 | Kaessbohrer Gelaendefahrzeug | Method of operating a winch and associated device |
DE102005060992A1 (en) * | 2005-12-20 | 2007-06-28 | Bosch Rexroth Aktiengesellschaft | Hydrostatic industrial drive has pressure energy storage reservoir is charged by energy recovered from the suction-side inlet to the hydraulic pump |
US20070221419A1 (en) * | 2006-03-27 | 2007-09-27 | Willis Douglas G | Detachable drive unit for mobile carriage |
US9908757B2 (en) | 2010-03-08 | 2018-03-06 | Wizard Products, Llc | Gas powered self contained portable winch |
US8434742B2 (en) * | 2010-03-08 | 2013-05-07 | Wizard Products, Llc | Gas powered self contained portable winch |
RU2446090C1 (en) * | 2010-10-06 | 2012-03-27 | Государственное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет" (СГТУ) | Hoisting mechanism |
CN102155441A (en) * | 2011-04-06 | 2011-08-17 | 上海朝田实业有限公司 | Hydraulic energy-saving pump device of hydraulic pump station |
CN102155440A (en) * | 2011-04-06 | 2011-08-17 | 上海朝田实业有限公司 | Hydraulic energy-saving motor device of hydraulic pump station |
US9908756B2 (en) * | 2012-09-28 | 2018-03-06 | Parker-Hannifin Corporation | Constant pull winch controls |
FR3002991B1 (en) * | 2013-03-08 | 2015-04-03 | Poclain Hydraulics Ind | HYDRAULIC CIRCUIT COMPRISING A TIMED STATIC BRAKE CONTROL |
CN103486094B (en) * | 2013-10-12 | 2016-08-24 | 徐州重型机械有限公司 | A kind of crane and winch motor hydraulic control system thereof |
US9663335B2 (en) | 2014-08-27 | 2017-05-30 | Caterpillar Inc. | Hydraulic winch control system and method |
CN105351266B (en) * | 2015-12-02 | 2017-07-14 | 北华航天工业学院 | A kind of high-performance mining elevator hydraulic control system |
JP7327022B2 (en) * | 2019-09-12 | 2023-08-16 | コベルコ建機株式会社 | working machine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2459663A (en) * | 1944-12-11 | 1949-01-18 | Warner Aircraft Corp | Hydraulic braking system |
US2576359A (en) * | 1949-10-08 | 1951-11-27 | Tracy J Putnam | Hoist control mechanism |
US2827763A (en) * | 1955-05-20 | 1958-03-25 | Jaroco Engineering Co | Hydraulic system |
US3249336A (en) * | 1963-06-18 | 1966-05-03 | Baldwin Lima Hamilton Corp | Hydraulic winch control mechanism |
FR1487372A (en) * | 1966-05-13 | 1967-07-07 | Poclain Sa | Dual control device of a distributor |
US3764111A (en) * | 1971-10-26 | 1973-10-09 | Bucyrus Erie Co | Free fall circuit for hydraulic winch |
-
1972
- 1972-08-19 DE DE2240940A patent/DE2240940C3/en not_active Expired
-
1973
- 1973-06-08 SE SE7308172A patent/SE392957B/en unknown
- 1973-06-29 FR FR7323866A patent/FR2196696A5/fr not_active Expired
- 1973-07-20 NL NL7310114A patent/NL7310114A/xx unknown
- 1973-07-23 US US382019A patent/US3871714A/en not_active Expired - Lifetime
- 1973-08-07 IE IE1345/73A patent/IE38051B1/en unknown
- 1973-08-08 IT IT9585/73A patent/IT992227B/en active
- 1973-08-09 GB GB3788773A patent/GB1415767A/en not_active Expired
- 1973-08-10 ZA ZA735489A patent/ZA735489B/en unknown
- 1973-08-13 ES ES417839A patent/ES417839A1/en not_active Expired
- 1973-08-15 CA CA178,908A patent/CA985985A/en not_active Expired
- 1973-08-20 JP JP48093234A patent/JPS4958552A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1415767A (en) | 1975-11-26 |
DE2240940A1 (en) | 1974-03-07 |
US3871714A (en) | 1975-03-18 |
FR2196696A5 (en) | 1974-03-15 |
ES417839A1 (en) | 1976-02-16 |
NL7310114A (en) | 1974-02-21 |
JPS4958552A (en) | 1974-06-06 |
CA985985A (en) | 1976-03-23 |
SE392957B (en) | 1977-04-25 |
DE2240940C3 (en) | 1975-11-06 |
ZA735489B (en) | 1974-08-28 |
IT992227B (en) | 1975-09-10 |
DE2240940B2 (en) | 1974-12-19 |
AU5911173A (en) | 1975-02-13 |
IE38051L (en) | 1974-02-19 |
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