GB1522044A - Electro-hydraulic drive arrangement for a lift or hoist - Google Patents
Electro-hydraulic drive arrangement for a lift or hoistInfo
- Publication number
- GB1522044A GB1522044A GB798576A GB798576A GB1522044A GB 1522044 A GB1522044 A GB 1522044A GB 798576 A GB798576 A GB 798576A GB 798576 A GB798576 A GB 798576A GB 1522044 A GB1522044 A GB 1522044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cage
- pump
- valve
- motor
- signal
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fluid-Pressure Circuits (AREA)
- Elevator Control (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
1522044 Propelling elevators MASCHINENFABRIK AUGSBURG-NURNBERG AG 1 March 1976 [4 March 1975] 07985/76 Heading B8L An electro-hydraulic drive for a lift cage 1 mounted on a piston 3 in an hydraulic cylinder 2 comprises an electric motor driven pump 7 for delivering hydraulic fluid to the cylinder 2 through a controllable non-return valve 5, the upwards and downwards velocity of the cage 1 being effected solely by regulation of the rotational speed of the pump 7 and by substantially all the working fluid being passed through the pump during both directions of travel of the cage. An electrical signal representing the desired velocity of the cage 1 is fed through a switch 17 into a desired valve setter 16 and is added to an electrical signal relating to the actual velocity of the cage 1, this being derived either from a tachogenerator 18 coupled through a rope 19 to the cage or from a flow meter generator 24 between the pump 7 and the valve 5 the added signals forming a deviation signal which controls the speed of the pump motor 10 through a high amplification controller 22 and a motor controller 23. For elevation of the cage the desired valve setter is energized and the pump 7 elevates the cage in response to the deviation signal fed to the motor 10, the setter being settable for any desired velocities. For lowering the cage initially the pump 7 is driven in a direction to open the non-return valve 5 whereafter a magnet 14c of a magnetic relay valve 14 is excited and a control unit 14b is actuated so that fluid from the cylinder feed line 4 flows through a control line 13 into the valve 5 to maintain the valve open. After deenergizing the pump motor 10, fluid from the cylinder drives the pump 7 and therefore motor 10 providing a signal for addition to the actual cage velocity signal for comparison with the desired valve setter signal whereupon a braking action of the motor and pump can be applied as the cage reaches its lowest position. The magnetic relay is then returned to rest.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752509228 DE2509228C3 (en) | 1975-03-04 | 1975-03-04 | Electro-hydraulic drive for hoists |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1522044A true GB1522044A (en) | 1978-08-23 |
Family
ID=5940353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB798576A Expired GB1522044A (en) | 1975-03-04 | 1976-03-01 | Electro-hydraulic drive arrangement for a lift or hoist |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2509228C3 (en) |
| FR (1) | FR2302952A1 (en) |
| GB (1) | GB1522044A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3836212A1 (en) * | 1987-11-04 | 1989-05-24 | Kone Elevator Gmbh | METHOD AND DEVICE FOR IMPROVING THE PERFORMANCE OF A MOTOR-CONTROLLED HYDRAULIC ELEVATOR |
| EP0957060A1 (en) * | 1998-05-14 | 1999-11-17 | Leistritz Aktiengesellschaft | Hydraulic rope lift |
| US9316238B2 (en) | 2011-11-21 | 2016-04-19 | Konecranes Global Corporation | Apparatus, method and computer program product for moving cargo, and a kit and method for upgrading an apparatus for moving cargo |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0162931A1 (en) * | 1983-07-28 | 1985-12-04 | Siminor S.A. | Hydraulic lifts |
| JPS62126087A (en) * | 1985-11-25 | 1987-06-08 | 株式会社日立製作所 | Hydraulic elevator |
| JPS631683A (en) * | 1986-06-20 | 1988-01-06 | 株式会社日立製作所 | Fluid pressure elevator |
| US4932502A (en) * | 1989-02-15 | 1990-06-12 | Inventio Ag | Hydraulic elevator system |
-
1975
- 1975-03-04 DE DE19752509228 patent/DE2509228C3/en not_active Expired
-
1976
- 1976-03-01 GB GB798576A patent/GB1522044A/en not_active Expired
- 1976-03-03 FR FR7605966A patent/FR2302952A1/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3836212A1 (en) * | 1987-11-04 | 1989-05-24 | Kone Elevator Gmbh | METHOD AND DEVICE FOR IMPROVING THE PERFORMANCE OF A MOTOR-CONTROLLED HYDRAULIC ELEVATOR |
| EP0957060A1 (en) * | 1998-05-14 | 1999-11-17 | Leistritz Aktiengesellschaft | Hydraulic rope lift |
| US9316238B2 (en) | 2011-11-21 | 2016-04-19 | Konecranes Global Corporation | Apparatus, method and computer program product for moving cargo, and a kit and method for upgrading an apparatus for moving cargo |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2509228A1 (en) | 1976-09-23 |
| FR2302952A1 (en) | 1976-10-01 |
| FR2302952B1 (en) | 1979-08-31 |
| DE2509228B2 (en) | 1980-05-22 |
| DE2509228C3 (en) | 1981-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104444707B (en) | Ultra-deep vertical shaft hoist steel wire rope tension balancing system and method | |
| GB1458094A (en) | Method and apparatus for controlling hydraulic drifters | |
| US5048644A (en) | Method for improving the performance of a motor controlled hydraulic elevator | |
| JP2000508614A (en) | Method and apparatus for controlling a hydraulic lift | |
| GB1522044A (en) | Electro-hydraulic drive arrangement for a lift or hoist | |
| EP0081935B1 (en) | Improvements in or relating to hydraulically operated cranes | |
| US3738501A (en) | Variable speed hydraulic drive system | |
| CN104495586A (en) | Pneumatic telescopic elevator | |
| US3204577A (en) | Overhead crane with skew control | |
| US3768261A (en) | Control system for hoist testing apparatus | |
| CN109850794B (en) | High-precision safety braking system segmented according to speed for mine hoisting equipment | |
| JPH0797150A (en) | Method and equipment to control hydraulic elevator | |
| JPS5566201A (en) | Controller of cargo handling equipment for battery operated vehicle | |
| CN113928980A (en) | Closed system, hoisting equipment and crawler-type walking equipment | |
| US2892520A (en) | Brake mechanisms | |
| EP0265729A3 (en) | Self-adjusting control valve for elevators | |
| CN205367375U (en) | Elevator car goes upward overspeed protection system | |
| US3477548A (en) | Current limit chairing system | |
| JP2880193B2 (en) | Hydraulic elevator control device | |
| JPS6434879A (en) | Hydraulic elevator valve gear | |
| CN115413438B (en) | Rear suspension inching control system, method and tractor | |
| CN108892011B (en) | Frequency conversion construction elevator | |
| US598415A (en) | Hoisting apparatus for elevators | |
| GB1407422A (en) | Fluid motor control mechanism | |
| CN117383371A (en) | Parking control method for mine hoist |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |