EP1478826A1 - Hebewerk - Google Patents
HebewerkInfo
- Publication number
- EP1478826A1 EP1478826A1 EP03742944A EP03742944A EP1478826A1 EP 1478826 A1 EP1478826 A1 EP 1478826A1 EP 03742944 A EP03742944 A EP 03742944A EP 03742944 A EP03742944 A EP 03742944A EP 1478826 A1 EP1478826 A1 EP 1478826A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- brake
- braking
- arrangement
- lifting mechanism
- emergency
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 9
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/008—Winding units, specially adapted for drilling operations
-
- 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
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
- B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
-
- 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
Definitions
- the invention relates to a hoist of the type corresponding to the preamble of claim 1.
- Lifting devices of this type are used for lowering and catching up a load, in particular a drilling device or a bore closure device, for example from a floating platform onto the sea floor or into or onto a borehole. They have a rotatably mounted winding drum to which a flexible traction device, usually designed as a steel cable, is fastened, which can be wound up or unwound by rotating the winding drum.
- a flexible traction device usually designed as a steel cable
- At least one rotary drive device is provided for rotating the drum.
- the latter regularly includes an electric motor. But it is also possible to use a hydraulic or pneumatic drive instead of the DC motor.
- a braking device which comprises a mechanically acting brake arrangement.
- non-mechanically acting brake arrangements for example eddy current brake arrangements, can be provided.
- the lifts are structurally adapted to the maximum expected lifting capacity determined by their intended use.
- the latter is specified by definition for a first rope layer on the winding drum.
- the larger lever connected to it, under which the load engages the winding drum reduces the maximum lever power.
- the rope is dimensioned so that its breaking load corresponds to at least twice the lifting capacity of the elevator.
- the structures over which the rope is deflected - for example a mast - are designed for 1.8 times the lifting load.
- the braking device is designed in such a way that the maximum load to be held is 1.5 to 1.6 -fold the lifting load corresponds.
- the invention is therefore based on the object of improving the operational safety of such elevators.
- the invention provides an emergency braking device for generating an additional braking force
- the braking devices used to date which - as described above - offer protection against overloading other components and ensure trouble-free operation in most applications.
- the additional emergency braking device now creates the possibility, if necessary, i.e. if the braking power is currently insufficient, to be able to apply an additional braking force.
- the emergency braking devices are devices which are provided in addition to the braking device and are not simply dimensioned larger, the emergency braking devices are only activated when they are actually required. Braking the winding drum is thus still possible even in the event of a total failure of the braking device.
- the brake arrangement has at least one brake shoe acting on a rotating part and a device for applying a braking force to the at least one brake shoe, the emergency brake arrangement being designed in that an additional device for optionally exerting an additional braking force is provided on the rotary part. If the brake line that can be achieved with the brake arrangement in normal operation is no longer sufficient, additional braking power can be actively generated by actuating the additional device.
- the device for applying a braking force to the at least one brake shoe preferably comprises a spring arrangement which applies the braking force to the at least one brake shoe.
- the device In order to control the braking force exerted on the brake shoe, the device preferably has an arrangement, which acts counter to the spring arrangement, for controlling the braking force exerted on the brake shoe.
- the additional device is then preferably designed in such a way that it comprises an arrangement for displacing the seat which absorbs the reaction forces of the spring arrangement.
- the additional device is actuated, the preload of the spring arrangement is therefore increased, which leads to an increase in the braking force acting on the at least one brake shoe and thus to an increase in the braking power.
- the additional device is preferably designed as a hydraulically actuated device.
- the emergency brake arrangement comprises an additional braking device which can optionally be connected to the brake arrangement.
- the emergency brake arrangement can completely replace the brake arrangement, so that emergency operation of the elevator is possible even if the brake arrangement completely fails.
- the structure of the emergency brake arrangement can at least essentially correspond to that of the main brake arrangement. If the elevator comprises at least one manual transmission coupled to a drive motor on the input side and interacting with a summation transmission on the output side, it is possible to arrange the emergency brake arrangement on the input side and / or the output side of the manual transmission.
- the emergency brake arrangement can be activated manually.
- an embodiment is particularly preferred in which a control device is provided which compares the respective braking power setpoint with a parameter characteristic of the actual braking power value achieved by the main brake arrangement and, in the case of a difference value between braking setpoint and actual braking value> 0, activates the emergency braking device so that the difference value corresponds to approximately 0, the maximum total braking power preferably being ⁇ 130% of the braking power setpoint. If the braking power achieved with the main brake arrangement drops below the target value, in this particularly preferred embodiment the emergency braking arrangement is activated via the control device to generate the additionally required braking power.
- the emergency brake arrangement is formed by a release device for controlled or regulated lowering, holding or catching up of the load, namely in that the lowering device has a power suitable for braking and holding the maximum lifting capacity of the lifting mechanism.
- the release device preferably comprises an electrically, hydraulically or pneumatically driven motor, which is also used to apply the emergency braking power is used. If the estate device further comprises a manual transmission to which the motor is coupled, the motor can be coupled to the manual transmission via an additional transmission shaft. However, it is also possible to couple the motor to the input shaft of the gearbox for a main drive motor for the elevator.
- FIG. 1 shows a first embodiment of an elevator according to the invention in a top view
- FIG. 2 shows a hydraulic diagram which shows a possibility of hydraulic design and control of the embodiment according to FIG. 1;
- FIG. 3 shows a further embodiment of a lifting mechanism according to the invention in a representation corresponding to FIG. 1;
- FIG. 4 shows a hydraulic diagram which shows a possibility of designing and controlling the exemplary embodiment according to FIG. 3;
- FIGS. 1 and 3 a section - the left end area according to FIGS. 1 and 3 of a further embodiment of a lifting mechanism according to the invention in a side view
- FIG. 6 shows a further embodiment of a lifting mechanism according to the invention in a view corresponding to FIG. 5.
- the elevator designated 100 as a whole in FIG. 1, comprises a frame 1 on which the components of the elevator are mounted.
- the lifting mechanism 100 comprises a drum 2, which is fixed in a rotationally fixed manner on a drum shaft 3 and whose axis S is parallel to the longitudinal Pages 4 of the frame 1 runs. It is mounted in bearing blocks 5, 6, which are arranged beyond the two end faces 7, 8 of the drum 2.
- a brake disk 9 is rotatably arranged, which is part of a brake arrangement designated as a whole by 10, which is further offset by two brake caliper arrangements 11 in the direction of rotation of the axis S by 180 ° , 12 - so-called "Kalipper" - includes.
- Another brake caliper arrangement is covered by the drum shaft 3 and is therefore not shown in FIG. 1.
- Drum 5 can be braked or completely blocked during the unwinding process of a flexible traction means, not shown in the drawing.
- an eddy current brake 13 connected to the drum shaft 3 is provided, seen from the drum 2, beyond the brake arrangement 10.
- the drive unit 14 of the elevator 100 for driving the drum 2 is arranged.
- it comprises three electrically operating drive motors 15, 16, 17, of which the two shown above are coupled to one another via a gear unit 18.
- the drive motors 15, 16, on the one hand, and 17, on the other hand are operatively connected to manual transmissions 19, 20, which are coupled on the output side to a summation gear 21, which transmits the drive torque provided by the drive motors 15, 16, 17 to the drum shaft 3.
- the brake caliper arrangements 11, 12 are configured in the manner which can be seen schematically in FIG. 2. They each include Weil spring assemblies 22, 23, the brake shoes not shown in the drawing press against the brake disc 9. To reduce the braking force thus exerted on the brake shoes until the brake is completely released, hydraulically acting devices 24, 25 are provided which are designed such that pressurization leads to contraction of the respectively assigned spring arrangement 22, 23.
- each spring arrangement comprises a further hydraulically actuated device 26, 27 with which the spring preload can be increased, which, when actuated, leads to an increase in the braking force with which the respective one
- the emergency brake device formed by the measures described above is actuated by a manually actuated emergency switch 30, via which electromagnetically actuated hydraulic valves 31, 32 are actuated, which, when actuated, feed hydraulic fluid from a pressure reservoir 33 via lines 34 to the devices 26, 27.
- the configuration of the brake caliper arrangement described with reference to FIG. 2 can be implemented in one brake caliper arrangement or in several brake caliper arrangements of the brake arrangement.
- FIG. 3 Another embodiment of a lift according to the invention, which is designated as a whole by 200, corresponds in its structure and its operation to a large extent to the elevator 100 according to FIG. 1. Accordingly, those components of the elevator 200 which are those of the Elevators correspond to 100, with increased by 100
- the shafts of the drive motors 116, 117 are connected to disc brake arrangements 35, 36, with which the respectively assigned shaft can be braked.
- the disc brake arrangements 35, 36 together form an emergency braking device for generating an additional braking force.
- the disc brake arrangements 35, 36 are actuated in the manner shown in FIG. 4 via a manually operable emergency switch 130, via which an electromagnetically actuated hydraulic valve 131 is actuated, which, when actuated, discharges hydraulic fluid from the brake calipers 37, 38 via lines 134 to a tank ,
- the brake caliper assemblies 37, 38 of the disc brake assemblies close resiliently in a manner corresponding to the brake calipers 111, 112.
- the lifting mechanism is equipped with a release device 40, which serves to slowly lower a load by means of the lifting mechanism, for example a drilling device with a feed rate.
- a release device 40 which serves to slowly lower a load by means of the lifting mechanism, for example a drilling device with a feed rate.
- the manual transmissions 19, 20, 119, 120 (for example, only the manual transmission 20 will be referred to below) is provided with an additional input shaft 41 which can be coupled to the main transmission shaft, not shown in the drawing.
- An additional drive motor 42 acts on the input shaft 41 via an angular gear 43.
- the entire release device 40 is dimensioned such that the maximum lifting load permissible for the lifting mechanism can be applied with it.
- the drive motor 42 is designed as an AC motor which is operated via a frequency converter.
- two electric motors can also be provided instead of one drive motor 42.
- the exemplary embodiment of a elevator shown in detail in FIG. 6 corresponds in terms of its function to that in accordance with FIG. 5.
- the estate device designated here as a whole by 140 is not formed here by a unit connected to the manual transmission 20, but the drive motor 142 is via a clutch arrangement 144 connected to the shaft of the drive motor 17 on the side opposite the manual transmission 20.
- the drive motor 142 can be replaced by multiple motors.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Earth Drilling (AREA)
- Drilling And Boring (AREA)
- Valve Device For Special Equipments (AREA)
- Magnetic Heads (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10208370A DE10208370A1 (de) | 2002-02-27 | 2002-02-27 | Hebewerk |
DE10208370 | 2002-02-27 | ||
PCT/EP2003/001665 WO2003072904A1 (de) | 2002-02-27 | 2003-02-19 | Hebewerk |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1478826A1 true EP1478826A1 (de) | 2004-11-24 |
EP1478826B1 EP1478826B1 (de) | 2006-06-07 |
Family
ID=27740441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03742944A Expired - Lifetime EP1478826B1 (de) | 2002-02-27 | 2003-02-19 | Hebewerk |
Country Status (8)
Country | Link |
---|---|
US (1) | US7232113B2 (de) |
EP (1) | EP1478826B1 (de) |
CN (1) | CN1325752C (de) |
AT (1) | ATE329130T1 (de) |
CA (1) | CA2477377C (de) |
DE (2) | DE10208370A1 (de) |
NO (1) | NO330088B1 (de) |
WO (1) | WO2003072904A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10348666A1 (de) * | 2003-10-15 | 2005-05-19 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH | Hebewerk |
US8079569B2 (en) * | 2005-04-29 | 2011-12-20 | Gerald Lesko | Cable drawworks for a drilling rig |
CA2505989C (en) * | 2005-04-29 | 2007-07-03 | Gerald Lesko | Electric drawworks for a drilling rig |
US7862009B2 (en) | 2006-11-22 | 2011-01-04 | Victory Rig Equipment Corporation | Electric winch motor |
US20130068068A1 (en) * | 2011-09-19 | 2013-03-21 | Holger Witt | Modulated shifting transmission with parallel power paths. |
DE102012102046A1 (de) | 2012-03-12 | 2013-09-12 | Aker Wirth Gmbh | Hebewerk |
DE102013108495B4 (de) * | 2013-08-07 | 2017-08-24 | Mhwirth Gmbh | Hebewerk-Bremssystem |
NO2760517T3 (de) * | 2014-01-30 | 2017-12-30 | ||
JP6404694B2 (ja) * | 2014-12-05 | 2018-10-10 | 株式会社神戸製鋼所 | 電動ウインチ装置及び移動式クレーン |
CN104528567B (zh) * | 2015-01-04 | 2017-01-25 | 江苏永钢集团有限公司 | 脱硫搅拌头安全升降控制装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB842435A (en) * | 1957-10-24 | 1960-07-27 | California Research Corp | A drawworks for well drilling |
DE1137277B (de) * | 1961-01-25 | 1962-09-27 | Siemens Ag | Zweistufiges Ventil zur selbsttaetigen Einstellung eines niedrigen Vordrucks vor Aufgabe des hoeheren Hauptdruckes auf ein und denselben Druckmittel-verbraucher, insbesondere auf Bremszylinder von Foerdermaschinenbremsen |
US3981485A (en) * | 1974-10-02 | 1976-09-21 | Dresser Industries, Inc. | Helicopter transportable drilling rig |
US4069921A (en) * | 1976-01-30 | 1978-01-24 | Harnischfeger Corporation | Overhead crane including a single failure proof hoist |
GB2031363B (en) * | 1978-10-17 | 1982-08-11 | Northern Eng Ind | Crane safety system |
US4337926A (en) * | 1980-09-02 | 1982-07-06 | Eaton Corporation | Winch control |
US4434971A (en) * | 1981-02-11 | 1984-03-06 | Armco Inc. | Drilling rig drawworks hook load overspeed preventing system |
DE3204695A1 (de) * | 1982-02-11 | 1983-08-18 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur sicherheitsbremsung von foerdermaschinen, insbesondere trommelfoerdermaschinen |
US4696377A (en) | 1985-09-27 | 1987-09-29 | Ltv Energy Products Company | Brake system for drawworks |
US4746100A (en) * | 1986-12-24 | 1988-05-24 | Caterpillar Inc. | Winch drag brake apparatus |
US5342020A (en) * | 1991-05-03 | 1994-08-30 | Stone Richard J | Speed controller for drilling rig traveling block |
AU7728394A (en) * | 1993-09-15 | 1995-04-03 | Gregory Rig Service & Sales, Inc. | Brake system for drilling equipment |
NO306814B1 (no) * | 1994-10-05 | 1999-12-27 | Maritime Hydraulics As | Brems for heisespill |
DE20003513U1 (de) * | 2000-02-28 | 2001-07-26 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 41812 Erkelenz | Hebewerk |
-
2002
- 2002-02-27 DE DE10208370A patent/DE10208370A1/de not_active Ceased
-
2003
- 2003-02-19 EP EP03742944A patent/EP1478826B1/de not_active Expired - Lifetime
- 2003-02-19 CA CA002477377A patent/CA2477377C/en not_active Expired - Lifetime
- 2003-02-19 DE DE50303686T patent/DE50303686D1/de not_active Expired - Lifetime
- 2003-02-19 WO PCT/EP2003/001665 patent/WO2003072904A1/de active IP Right Grant
- 2003-02-19 CN CNB038047543A patent/CN1325752C/zh not_active Expired - Fee Related
- 2003-02-19 US US10/506,032 patent/US7232113B2/en not_active Expired - Lifetime
- 2003-02-19 AT AT03742944T patent/ATE329130T1/de not_active IP Right Cessation
-
2004
- 2004-09-24 NO NO20044024A patent/NO330088B1/no not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO03072904A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2477377A1 (en) | 2003-09-04 |
CN1639439A (zh) | 2005-07-13 |
US20050133773A1 (en) | 2005-06-23 |
ATE329130T1 (de) | 2006-06-15 |
NO330088B1 (no) | 2011-02-14 |
CA2477377C (en) | 2009-02-03 |
CN1325752C (zh) | 2007-07-11 |
DE10208370A1 (de) | 2003-09-11 |
US7232113B2 (en) | 2007-06-19 |
NO20044024L (no) | 2004-09-27 |
EP1478826B1 (de) | 2006-06-07 |
DE50303686D1 (de) | 2006-07-20 |
WO2003072904A1 (de) | 2003-09-04 |
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