WO2002025018A1 - Dispositif de deplacement d'une charge - Google Patents
Dispositif de deplacement d'une charge Download PDFInfo
- Publication number
- WO2002025018A1 WO2002025018A1 PCT/FR2001/002930 FR0102930W WO0225018A1 WO 2002025018 A1 WO2002025018 A1 WO 2002025018A1 FR 0102930 W FR0102930 W FR 0102930W WO 0225018 A1 WO0225018 A1 WO 0225018A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- load
- arms
- balancing
- mobile support
- support
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/02—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers specially adapted for placing or removing bulkheads
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
Definitions
- the invention relates to a device for moving a load, of the type comprising a movable support capable of supporting the load and of exerting on this load a force in a given direction.
- It relates more particularly to such a displacement device capable of allowing movements of small amplitude of the load, parallel to the direction of the force, and this without requiring significant efforts and without causing significant reactions on the mobile support.
- This mobile support is generally a handling device of the crane type or the like capable of moving the load in a vertical direction, in the upward or downward direction.
- the device is intended to move a load attached to the mobile support and capable of having vertical movements of small amplitude.
- Such a displacement device can in particular have two main applications.
- One of them concerns the positioning of piles, also called sheet piles, capable of being driven into the ground.
- the other of these applications concerns the driving in or extraction of piles in the ground by means of a vibration generator.
- sheet piles which are long metal parts, in the form of profiles, the weight of which is generally between a few hundred kilograms and a few tonnes. These parts are driven into the ground by being linked to each other to prevent the flow of water in a given area, in general for carrying out work there.
- These sheet piles are placed in position using a handling device, of the crane type, which must move the sheet pile in a precise position to allow the insertion of a notch of the sheet pile into a notch homologous of a sheet pile previously implemented.
- the handling devices are equipped with a vibration generator for driving a stake into the ground by pushing it, or on the contrary for extracting the stake from the ground by pulling it.
- the handling device must exert a given force on the pile and superimpose on this force an alternative force having a frequency of a few tens of Hertz. This additional alternative force is intended to generate vibrations which facilitate the driving in or the extraction of the pile.
- the main force applied to the pile to drive it in or out is relatively high (generally on the order of a few tens of tonnes) while the alternative force is lower (generally on the order of several tonnes).
- This alternating force is generally created by a vibration generating device, interposed between the mobile support and the load, which comprises eccentric masses in motion to generate an unbalance.
- the tensile force is exerted by a crane which is capable of pulling the pile with a force of several tens of tonnes.
- this crane is generally unable to withstand the vibrations, which are essential for driving in or extracting the pile.
- document WO 99 58810 discloses an apparatus intended to facilitate the connection or disconnection of a drill pipe to a drill string, which comprises a weight compensation device which is of the hydraulic or pneumatic type.
- the object of the invention is in particular to overcome the aforementioned drawbacks.
- It aims in particular to provide a device for moving a load of the aforementioned type which is capable of allowing movements of small amplitude of the load, parallel to the direction of the force, and this without requiring significant efforts and without causing significant reactions on the mobile support.
- the invention aims in particular to provide such a device which can be used with a handling device of the crane type for positioning piles, in particular sheet piling. It also aims to produce such a handling device which can be used for driving in or extracting piles by means of vibration means, while filtering out these vibrations.
- the invention provides a device for moving a load, of the type defined in the introduction, which comprises mechanical balancing means interposed between the movable support and the load so as to compensate for the weight of the load and allow small amplitude movements of the load in a direction parallel to the load.
- mechanical balancing means is intended to denote balancing means, of the autonomous type, which generate their own intrinsic law and which do not comprise any fluid. Such mechanical means therefore clearly differ from the means described in the aforementioned documents, which use a fluid and have all the drawbacks inherent in the use of a fluid.
- Such balancing means allow both a fine positioning of the load, in the case of placing piles of the sheet pile type, as well as filtering vibrations in the case of driving in or extracting piles. of the ground.
- the mobile support can be a handling device able to move the load in the vertical direction so that the balancing means allow fine movement of the load in the vertical direction.
- the mobile support can also be a handling device capable of moving the load in the vertical direction and comprising vibration generating means which support the load, and in which the balancing means are interposed between the mobile support and the vibration generating means to subtract from the mobile support the vibrations generated by the vibration generating means.
- these balancing means comprise a balancer capable of providing a sinusoidal mechanical torque having two output axes which are parallel and have synchronized speeds of rotation but of opposite directions, and in which these two output axes are arranged in the same horizontal plane and are linked in rotation with two arms capable of supporting the load by means of connection means.
- Such a balancer can in particular be of the type described in French patent n ° 88 02 423, published under n ° 2 627 718.
- This balancer which is purely mechanical, is generally used to balance the forces acting on an arm stressed by a load, such as a tool. It allows rigorous balancing of the arm, whatever its angular position relative to the body on which it is articulated. Normally, this arm can rotate 360 ° relative to the body, which allows the load to describe a circular path.
- this balancer comprises two synchronized arms, rotating in opposite directions, and serving to support the load.
- the balancer allows either a fine positioning of a load, or a filtering of vibrations when this load is supported by means of vibration generator.
- the two arms are symmetrical with respect to a vertical plane.
- stops are provided to limit the angular travel of the two arms between a high position and a low position, on either side of a horizontal position, and locking means are designed to lock the arms in the high position.
- each of the arms has several anchor points capable of supporting a connection means, and these anchor points are located at different distances from the outlet axis, so as to control loads of different values with the same torque setting value.
- each of the arms comprises an anchor point capable of supporting a connection means and adjustment means suitable for varying the distance of the anchor point relative to the outlet axis, so as to control loads of different values with the same torque setting value.
- the device comprises control means capable of controlling the amplitude of vibration of the arms.
- these regulating means include either adding a value of the load-bearing force, or adjusting the number of springs that the balancing means comprise.
- An additional suitable mass can also be provided to be applied to the frame of the balancing means in order to improve the filtering of vibrations.
- the device shown in the figure of the drawing comprises a balancer 10 interposed between a movable support 12 (shown diagrammatically) and a pile 14, in the example of the sheet pile type, suitable for being driven into the ground.
- the mobile support is here a handling device of the crane or similar type suitable for moving a load, here a pile, in a vertical direction, either upward or downward.
- the balancer 10 is here produced in accordance with the teachings of French patent n ° 88 02 423 already cited. It comprises a frame 16 housing an internal mechanism capable of providing a sinusoidal mechanical torque and having two axes or output shafts 18 and 20 which are parallel to each other and in the same horizontal plane.
- the frame 16 is here provided with a ring 22 capable of cooperating with a hook 24 placed at the end of a lifting cable 26 of the crane.
- the balancer 10 is thus suspended from the crane and arranged so that its two outlet axes 18 and 20 are in the same substantially horizontal plane.
- the output axes 18 and 20 are integral with two toothed pinions 28 and 30 which mesh respectively with two other toothed pinions 32 and 34 which mesh with each other and are integral with an internal mechanism provided with springs. As a result, the output axes 18 and 20 have synchronized speeds of rotation but in opposite directions.
- connection means here two slings 40 and 42.
- These slings are connected to fixing means 46, such as claws, which serve to hang the stake 14.
- the two arms 36 and 38 are symmetrical with respect to a vertical plane and at least two stops 48 and 50 are provided to limit the angular travel of the two arms between a high position and a low position (not shown) on either side of a horizontal position.
- Locking means are provided for locking the arms 36 and 38 in the high position. These means can be of any kind, in particular mechanical. They can be operated directly on the balancer, or remotely.
- Each of the arms 36 and 38 has several anchor points 52, respectively 54, capable of supporting the corresponding sling 40, respectively 42. These anchor points are located at different distances from the outlet axis , which allows loads of different values to be controlled with the same torque setting value.
- each of the arms may have an anchoring point associated with adjustment means for varying the distance from the anchoring point relative to the corresponding outlet axis.
- the balancer 10 allows manual movement of the load by an operator, both in the upward direction and in the downward direction, without the intervention of the crane and over a short stroke defined adequately according to the assembly to be produced.
- the suspension system here the cable 26 of the crane
- this stroke can be of the order of 30 ° on either side of the horizontal, being between a high position and a low position. The latter corresponds approximately to the desired end position.
- the crane moves the load 14, here a sheet pile, until it comes close to the position where this sheet pile must be linked to a previous sheet pile (not shown).
- the two arms of the balancer are preferably locked in the high position.
- the operator unlocks the arms of the balancer and manually moves the sheet pile so as to put the notch 56 that it includes in the notch 56 of a previous sheet pile.
- the crane descends the sheet pile until it is supported by the ground, its notch sliding along the notch of the previous sheet pile.
- the sheet pile is now supported by the ground, the crane descends a few more centimeters, which causes the arms of the balancer to abut in the high position and the slings 40 and 42 relax. The operator then locks the arms in the high position and detaches the slings.
- the anchor points or mooring of the slings on each of the arms make it possible to adapt several weight values of the sheet pile for a single value adjustment of the torque of the balancer.
- a means of continuous adjustment for example with a worm screw, manual or motorized, controlled or automatic, to move the anchoring points of the load on the arms and allow the device to be adapted to several weight values.
- the slings 40 and 42 do not remain perfectly vertical during operation. If necessary, a stabilization system can be used to stabilize them in space.
- the balancer 10 could be supported instead of being suspended.
- the arms can each be extended beyond the corresponding output axis and that cables or the like can be connected to the ends of each arm to facilitate its pivoting by an operator.
- the device shown in the figure can be used in all cases where a fine and often manual final approach is advantageous for achieving fine positioning, whether this final approach is upward or downward.
- the mobile support 12 is a handling device able to move the load in the vertical direction and comprising vibration generating means 46 which support the load 14.
- the balancing means 10 are interposed between the support mobile and the vibration generating means for subtracting from the mobile support the vibrations generated by the vibration generating means.
- the main difference lies in the fact that the load 14, here a pile, is supported by means 46 capable of generating vibrations. These vibration generating means used to drive or extract piles in the ground.
- the handling device makes it possible to exert a given force in the vertical direction to push or extract the pile and to superimpose on this force an alternative force, generally having a frequency of a few tens of Hertz, which is produced by the generating means of vibrations.
- the means 46 are a vibrating weight system according to frequencies between a few tenths of Hertz and a few hundred Hertz, and the balancer 10 is tared differently compared to the previous embodiment.
- the balancer 10, the arms 36 and 38 and the anchor points 52 and 54 are adjusted so as to exert the desired force.
- the arms 36 and 38 oscillate and the balancer 10 filters the vibrations, so that the balancer transmits to the mobile support 12 only the main force "cleaned" of the vibrations. Only the high frequencies, greater than the bandwidth of the balancer 10, are not filtered, which do not interfere with the crane. This filtering is effective for fixed, variable or adjustable vibration frequencies, depending on the nature of the soil.
- the main force can be adjusted either by moving the anchor points on the arms, or by moving a counterweight along the arms, or by varying the number of internal springs of the balancer 10.
- the stops 48 and 50 may be replaced by means providing a force proportional to the sinking, of the type spring, possibly placed at a greater distance from the axes 18 and 20 so as to be more progressive.
- a detection system could be integrated to detect the maximum deflection points of the arms of the balancer and activate a device making it possible to reverse a drift of the mean position of the arms. This action could be, without limitation, a modification of the force exerted by the support, or the putting into service or out of service of part of the springs of the balancer.
- safety can be added in order to prevent vibrations, in the absence of a pile, from generating damaging amplitudes for all of the mechanics.
- an additional mass can be added to the balancer frame in order to create an additional barrier to vibrations.
- the device of the invention makes it possible to filter the vibrations as well as some of their harmonics over the entire amplitude of these vibrations.
- This filtering is effective because the balancer generates a sinusoidal torque, the force on the support is constant whatever the position of the arm, insofar as the bandwidth of the balancer is compatible with the frequency of the vibrations.
- this application is not limited to vibration generators, and it can also be used to filter unwanted vibrations, for example those of a motor on a fragile base or requiring absolute immobility.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
- Power Steering Mechanism (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Refuse Collection And Transfer (AREA)
- Vending Machines For Individual Products (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01974389A EP1320646B1 (fr) | 2000-09-25 | 2001-09-20 | Dispositif de deplacement d'une charge |
DE60139074T DE60139074D1 (de) | 2000-09-25 | 2001-09-20 | Vorrichtung zum versetzen einer last |
AU2001293917A AU2001293917A1 (en) | 2000-09-25 | 2001-09-20 | Device for displacing a load |
US10/381,444 US6860338B2 (en) | 2000-09-25 | 2001-09-20 | Device for displacing a load |
AT01974389T ATE434690T1 (de) | 2000-09-25 | 2001-09-20 | Vorrichtung zum versetzen einer last |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0012156A FR2814449B1 (fr) | 2000-09-25 | 2000-09-25 | Dispositif de deplacement d'une charge |
FR00/12156 | 2000-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002025018A1 true WO2002025018A1 (fr) | 2002-03-28 |
Family
ID=8854630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/002930 WO2002025018A1 (fr) | 2000-09-25 | 2001-09-20 | Dispositif de deplacement d'une charge |
Country Status (7)
Country | Link |
---|---|
US (1) | US6860338B2 (fr) |
EP (1) | EP1320646B1 (fr) |
AT (1) | ATE434690T1 (fr) |
AU (1) | AU2001293917A1 (fr) |
DE (1) | DE60139074D1 (fr) |
FR (1) | FR2814449B1 (fr) |
WO (1) | WO2002025018A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7824132B1 (en) * | 2000-08-01 | 2010-11-02 | American Piledriving Equipment, Inc. | Automatically adjustable caisson clamp |
US7708499B1 (en) * | 2005-01-03 | 2010-05-04 | American Piledriving Equipment, Inc. | Clamp systems and methods for pile drivers and extractors |
FR2885610B1 (fr) | 2005-05-12 | 2009-01-16 | Airbus France Sas | Dispositif d'elinguage d'une piece avec compensation d'effort et systeme de levage le comprenant |
US7854571B1 (en) | 2005-07-20 | 2010-12-21 | American Piledriving Equipment, Inc. | Systems and methods for handling piles |
US8186452B1 (en) * | 2005-09-30 | 2012-05-29 | American Piledriving Equipment, Inc. | Clamping systems and methods for piledriving |
US8763719B2 (en) | 2010-01-06 | 2014-07-01 | American Piledriving Equipment, Inc. | Pile driving systems and methods employing preloaded drop hammer |
FR2955353B1 (fr) | 2010-01-20 | 2014-11-28 | Total Sa | Dispositif de decouplage pour colonne de forage, et systeme de forage comportant un tel dispositif de decouplage. |
US8434969B2 (en) | 2010-04-02 | 2013-05-07 | American Piledriving Equipment, Inc. | Internal pipe clamp |
NL2009558C2 (en) * | 2012-10-02 | 2014-04-07 | Dieseko Group B V | Vibrator-system. |
US9249551B1 (en) | 2012-11-30 | 2016-02-02 | American Piledriving Equipment, Inc. | Concrete sheet pile clamp assemblies and methods and pile driving systems for concrete sheet piles |
US9371624B2 (en) | 2013-07-05 | 2016-06-21 | American Piledriving Equipment, Inc. | Accessory connection systems and methods for use with helical piledriving systems |
US10273646B2 (en) | 2015-12-14 | 2019-04-30 | American Piledriving Equipment, Inc. | Guide systems and methods for diesel hammers |
US10354912B2 (en) * | 2016-03-21 | 2019-07-16 | Qualcomm Incorporated | Forming self-aligned vertical interconnect accesses (VIAs) in interconnect structures for integrated circuits (ICs) |
US10538892B2 (en) | 2016-06-30 | 2020-01-21 | American Piledriving Equipment, Inc. | Hydraulic impact hammer systems and methods |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3828864A (en) * | 1973-02-26 | 1974-08-13 | H & M Vibro Inc | Pile driver and extractor |
US4813498A (en) * | 1988-03-03 | 1989-03-21 | National-Oilwell | Active counterbalance for a power swivel during well drilling |
US4901591A (en) * | 1988-02-26 | 1990-02-20 | Rene Oppermann | Device for balancing forces, in particular weight, acting on a robot arm or the like |
WO1999058810A2 (fr) * | 1998-05-12 | 1999-11-18 | Weatherford/Lamb, Inc. | Appareil et procede permettant de faciliter la connexion d'un element tubulaire avec un train d'elements tubulaires |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3280924A (en) * | 1961-03-13 | 1966-10-25 | Pavlovich Tatarnikov Boris | Vibrating machine for plunging piles, thin-walled clindrical casings and plates |
US3351372A (en) * | 1966-05-02 | 1967-11-07 | Dresser Ind | Split hook hoisting apparatus |
US3964552A (en) * | 1975-01-23 | 1976-06-22 | Brown Oil Tools, Inc. | Drive connector with load compensator |
FR2311596A1 (fr) * | 1975-04-23 | 1976-12-17 | Procedes Tech Const | Perfectionnement aux appareils d'enfoncement ou d'arrachage dits vibrofonceurs |
FR2344490A1 (fr) * | 1976-03-18 | 1977-10-14 | Elf Aquitaine | Dispositif de compensation des variations de distance entre un objet flottant sur l'eau et le fond de celle-ci |
US4421179A (en) * | 1981-01-23 | 1983-12-20 | Varco International, Inc. | Top drive well drilling apparatus |
US4800968A (en) * | 1987-09-22 | 1989-01-31 | Triten Corporation | Well apparatus with tubular elevator tilt and indexing apparatus and methods of their use |
US4819740A (en) * | 1987-11-16 | 1989-04-11 | Vulcan Iron Works Inc. | Vibratory hammer/extractor |
-
2000
- 2000-09-25 FR FR0012156A patent/FR2814449B1/fr not_active Expired - Fee Related
-
2001
- 2001-09-20 WO PCT/FR2001/002930 patent/WO2002025018A1/fr active Application Filing
- 2001-09-20 AU AU2001293917A patent/AU2001293917A1/en not_active Abandoned
- 2001-09-20 US US10/381,444 patent/US6860338B2/en not_active Expired - Fee Related
- 2001-09-20 DE DE60139074T patent/DE60139074D1/de not_active Expired - Lifetime
- 2001-09-20 AT AT01974389T patent/ATE434690T1/de not_active IP Right Cessation
- 2001-09-20 EP EP01974389A patent/EP1320646B1/fr not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3828864A (en) * | 1973-02-26 | 1974-08-13 | H & M Vibro Inc | Pile driver and extractor |
US4901591A (en) * | 1988-02-26 | 1990-02-20 | Rene Oppermann | Device for balancing forces, in particular weight, acting on a robot arm or the like |
US4813498A (en) * | 1988-03-03 | 1989-03-21 | National-Oilwell | Active counterbalance for a power swivel during well drilling |
WO1999058810A2 (fr) * | 1998-05-12 | 1999-11-18 | Weatherford/Lamb, Inc. | Appareil et procede permettant de faciliter la connexion d'un element tubulaire avec un train d'elements tubulaires |
Also Published As
Publication number | Publication date |
---|---|
US6860338B2 (en) | 2005-03-01 |
EP1320646A1 (fr) | 2003-06-25 |
FR2814449B1 (fr) | 2003-02-07 |
AU2001293917A1 (en) | 2002-04-02 |
US20040011540A1 (en) | 2004-01-22 |
FR2814449A1 (fr) | 2002-03-29 |
DE60139074D1 (de) | 2009-08-06 |
ATE434690T1 (de) | 2009-07-15 |
EP1320646B1 (fr) | 2009-06-24 |
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