EP2361216A1 - Dispositif de regulation du deplacement d'une charge suspendue a une grue - Google Patents
Dispositif de regulation du deplacement d'une charge suspendue a une grueInfo
- Publication number
- EP2361216A1 EP2361216A1 EP09771368A EP09771368A EP2361216A1 EP 2361216 A1 EP2361216 A1 EP 2361216A1 EP 09771368 A EP09771368 A EP 09771368A EP 09771368 A EP09771368 A EP 09771368A EP 2361216 A1 EP2361216 A1 EP 2361216A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- angle
- speed
- point
- load
- axis
- 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
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
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
- B66C13/063—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads electrical
Definitions
- the present invention relates to a regulating device and a method for regulating the movement of a load suspended by cables to a hoist, this hoisting apparatus being capable of driving the load in a rotational movement.
- the lifting gear concerned includes in particular different types of tower cranes or jib cranes. These cranes have an arrow that hangs on top of a vertical mast. The boom has a hanging point to which the load is suspended by suspension cables. They have the distinction of making a first movement which is a rotational movement of the arrow about a vertical axis of rotation Z which is generally centered on the mast of the crane (rotation or slewing movement).
- the hooked point of the load is a carriage (trolley) which is movable in translation on rails, the translational movement then being performed along the horizontal axis X of the arrow (trolley movement).
- Other cranes include an arrow which is liftable (luffing jib) or articulated (jack-knife jib) and at the end of which is arranged the hooked point of the load. The lifting or articulation of the arrow then creates the translational movement of the hooked point.
- the cranes always include a load lifting device which is associated with the suspension cables whose length is variable so as to move the load vertically in a third movement called hoisting movement.
- a first swing (or first swing) is generated by the rotational movement about the vertical axis of rotation Z.
- a second swing (or second swing) is also generated by the acceleration / deceleration of the translational movement along the X translation axis.
- the peculiarity of a dangling due to a rotational movement is that this dangling has a component that is generated by the centrifugal force of the load during the rotational movement, this force tending to move the load away from the rotational zone. It is therefore not possible to remove the first ballant by acting only on the controls of this rotational movement.
- the first ballant has the particularity to remain present as soon as the speed of rotation is non-zero, even when the acceleration or deceleration of the rotational movement is zero.
- the invention aims to control the oscillations of a load suspended from a crane, using a device and a simple process, fast and easy to implement. It makes it possible to minimize the measurements or the information taken which are necessary to carry out the control and the control of the ballad of a load.
- the invention describes a device for regulating the movement of a load suspended by suspension cables at a point of attachment of a hoist, the hooked point being able to perform a rotational movement around a vertical axis of rotation and a translational movement along a translation axis, the rotational movement generating a first swing angle of the load along the axis of translation.
- the regulating device comprises means for calculating the first swaying angle and a speed of the first swaying angle, using as only input variables information representative of a length of the suspension cables, information representative of a distance between the axis of rotation and the hooked point and information representative of a rotation speed of the hooked point, and using as an internal variable an acceleration of the first swing angle.
- the calculating means determines the first swing angle and the speed of the first swing angle using an iterative process using the acceleration of the first swing angle.
- the calculation means determine the first swing angle of the load while also taking into account the translational movement effected by the hooking point along the axis of translation.
- the information representative of the rotation speed of the hanging point is determined by using a speed reference which is supplied to a speed variator controlling the rotational movement of the hooked point.
- the information representative of the speed of rotation of the hooked point is determined by using a speed estimation which is produced by a variable speed drive controlling the rotational movement of the hooked point.
- the regulating device calculates an offset value of the first dangling angle which is a function of the rotation speed of the hooked point and delivers a first correction signal of the speed of the translation movement of the d-point. 'hooked which takes into account the offset value.
- the first correction signal is proportional to the difference between the first swing angle and the offset value and is proportional to the speed of the first swing angle.
- the first correction signal is added to a speed reference to provide a speed reference of the translation movement of the hooked point, the correction signal being calculated by applying a correction coefficient to the difference between the first swing angle ( ⁇ x) and the offset value and the speed of the first swing angle.
- the correction coefficients may be variable depending on the length of the suspension cables.
- the calculating means calculate a second angle of the load on a tangential axis perpendicular to the translation axis and a speed of the second swing angle, using an iterative process and using as only input variables the information representative of the length, the information representative of the distance and the information representative of the speed of rotation, and using as an internal variable an acceleration of the second dangling angle.
- the invention also claims an automation system for controlling the movement of a load suspended by suspension cables at a point of attachment of a hoist and having such a control device. Likewise, the invention claims a method for regulating the movement of a suspended load which is implemented in such a regulating device.
- FIG. 1 shows an example of a crane-type lifting device comprising a rotational movement about a vertical axis
- FIG. 2 schematizes the dangling angles of a load suspended at a point of attachment in such a hoist
- FIG. 3 represents a simplified diagram of a device for regulating the displacement of a load according to the invention.
- the device for regulating the displacement of a suspended load according to the invention can be implemented in a hoist comprising a rotational movement of the load, such as a crane or the like.
- the example of Figure 1 shows a crane 5 which comprises a vertical mast and a substantially horizontal arrow 6.
- the arrow 6 has a hooked point 10, which may be a movable carriage as in the example of Figure 1.
- the arrow 6 can rotate about a vertical axis of rotation Z passing through the vertical mast of the crane 5.
- the hooked point 10 is movable along the arrow 6 to perform a translational movement according to a translation axis X.
- the translation axis X thus crosses the axis of rotation Z at a point O (see FIG. 2) and passes through the point of attachment 10.
- the translation axis X is horizontal, but some cranes have an arrow 6 having a non-zero angle relative to the horizontal.
- the crane 5 can perform a vertical lifting movement to raise and lower a load 15 suspended by one or more suspension cables 14 which pass through the point of attachment 10 and at the end of which is associated with a suspension member of the load 15 to move.
- the hanging point 10 is situated at a distance R from the axis of rotation Z (represented by the point O of FIG. 2), this distance R varying when the point of hanging 10 is moves along the axis of translation X.
- the load 15 Under the action of the lifting movement, the load 15 obviously has a suspension height varying according to the length L of the suspension cables 14. This suspension height of the load will be by the Following similar to the length of the cables L, which could possibly add an offset representing the distance between the low end of the cables 14 and the load 15 (materialized for example by its center of gravity).
- the load 15 moves along a virtual vertical cylinder centered on the vertical axis Z and radius R, ignoring the ballant.
- the rotational movement of the hooking point 10 is therefore carried out along a moving horizontal tangential axis Y which is always perpendicular to the translation axis X and tangent with respect to the vertical cylinder.
- the load 15 takes a swinging swinging motion which is defined by a swing angle having two orthogonal components.
- a first component forms the first dangling angle noted ⁇ x and corresponds to the projection of the ballant on the translation axis X.
- a second component forms the second dangling angle noted ⁇ y and corresponds to the projection of the ballant on the tangential axis Y
- the load 15 also takes a pendulum movement with a swinging angle along the translation axis X only, which is therefore added to the first swing angle ⁇ x defined above.
- the translation movement along the X axis is performed by means of a translation motor Mx controlled by a variable speed drive Dx which receives a speed reference Vx r e f (see Figure 3).
- the rotational movement about the vertical axis Z is performed by means of a rotation motor My driven by a variable speed drive Dy which receives an angular speed reference Vy ref .
- the lifting movement along the Z axis is performed by means of a hoisting motor not shown in the figures which makes it possible to wind and unwind the suspension cables. This hoist motor could be placed on the hooked point 10.
- the translation or rotation movement is controlled by the driver of the crane 5, this conductor providing a translation speed reference signal Vcx, respectively a rotation speed reference signal Vcy, using, for example, combinator (s) - joystick type, as shown in Figure 3. Nevertheless, in some applications where the lifting gear would be controlled automatically, it could also be envisaged that the speed instructions Vcx, Vcy come directly from a device d automation.
- a rotational movement generates a ballant whose angle has components ⁇ x and ⁇ y nonzero in the two perpendicular axes, respectively X and Y.
- the second component ⁇ y along the Y axis is generated by the acceleration / deceleration of the hooked point and can be fought by acting on the control of the rotational movement.
- the first component ⁇ x along the X axis is generated by the centrifugal force which causes a displacement of the load 15 which is not directed in the tangential plane YZ, but which is directed along a perpendicular plane XZ.
- This first component ⁇ x can not therefore be fought by acting on the control of the rotational movement, but involves also acting on the control of the translational movement along the axis X.
- the centrifugal force causes the load to move along the X axis, even when the rotational movement is at constant speed (i.e., at zero acceleration / deceleration).
- the object of the invention is therefore to assist in the control of a hoist 5 capable of performing a translational movement and a rotational movement of the hooked point 10, these two movements can obviously be performed simultaneously.
- the translation and rotation movements can be performed simultaneously with a lifting movement of the load 15 along the axis Z.
- the invention makes it possible to simply and automatically damp the ballant along the X axis and along the Y axis during the displacement of the load 15, in a manner that is transparent to the driver of the machine.
- the invention does not require a learning phase and does not require measurement of the swing angle ⁇ x and / or ⁇ y, measurement of the motor current or the motor torque which can prove to be expensive and longer to enforce.
- a regulating device 20 is intended to damp the oscillating movement of the load 15 during its displacement in rotation and / or in translation, this displacement obviously being able to be performed at the same time as a movement lifting the load 15.
- the regulating device 20 comprises means for determining information representative of the length L of the suspension cables.
- These determination means comprise, for example, a sensor or encoder associated with the lifting motor shaft or with the winding drum of the cables.
- Other means for determining the length L are conceivable: for example, several limit switches distributed over the entire race of the cables, the length L being then determined by predetermined bearing values as a function of the triggering of these limit switches. . This solution is nevertheless less precise obviously.
- the regulating device 20 comprises means for determining information representative of the distance R between the point of attachment 10 and the axis of rotation Z.
- Various determination means are possible:
- the distance R is obtained by means of a sensor which may be a rotary encoder associated with the shaft of the translation motor Mx or with the winding drum of the cables, or which may be an absolute encoder , for example, a linear potentiometer type encoder along the arrow 6.
- a sensor which may be a rotary encoder associated with the shaft of the translation motor Mx or with the winding drum of the cables, or which may be an absolute encoder , for example, a linear potentiometer type encoder along the arrow 6.
- the distance R is obtained by integration from a measurement of the reference speed Vx ref of the translational movement, then by integration of this reference speed.
- This reference speed Vx ref is easily available because it is indeed used by the Dx drive in charge of control the translation motor Mx.
- One or more detectors, of end-of-travel type or proximity detector, may additionally be useful for providing resetting values of R.
- the distance R can also be obtained by means of several detectors distributed over the entire stroke along the arrow 6, the distance R being then determined by predetermined bearing values as a function of the triggering of these ends of the race. This solution is nevertheless less precise obviously.
- the regulating device 20 also comprises means for determining information representative of the rotational speed Vy of the hooking point 10. Various determination means are possible:
- the rotation speed Vy is obtained by measuring the actual rotational speed of the hooking point 10.
- this solution requires the use of a speed or displacement sensor.
- the rotation speed Vy is obtained directly by the speed reference Vy ref which is supplied at the input of the drive Dy in charge of controlling the rotation motor My. It is assumed in this case that the drive Dy ensures the tracking of the speed reference with great speed. This solution is very easy to implement because the speed reference Vy ref is easily available.
- the speed of rotation Vy is obtained by a speed estimation elaborated in the variable speed drive Dy in charge of controlling the motor My.
- this speed estimate is indeed closer to the actual speed than the speed reference Vy ref , because of phenomena such as ramp tracking deviation or mechanical phenomena.
- This solution can therefore be of interest especially for an application using a conical motor.
- the parameter internal to the speed estimation drive is often available on an analog output of the drive.
- the regulation device 20 comprises an estimator module 21 connected to a correction module 22.
- the estimator module 21 receives as input the information representative of the length L of the cables, the distance R and the speed of rotation Vy and comprises means for calculating which compute in real time the first swinging angle ⁇ x and the speed (or variation) ⁇ 'x of this first angle ⁇ x, as well as the second swing angle ⁇ y and the speed (or variation) ⁇ 'y of this second angle .theta.y.
- the estimator module 21 then transmits these calculated values to the correction module 22 which calculates and outputs a first correction signal ⁇ Vy which is added to the instruction of speed Vcy of the rotational movement, and a second correction signal ⁇ Vx which is added to the speed reference Vcx of the translational movement.
- ⁇ x represents the first bending angle of the load along the X axis
- ⁇ 'x represents the speed of the swinging angle ⁇ x
- ⁇ y represents the second swing angle of the load along the Y axis
- L the length of the cables
- R represents the distance between the hooking point of the cables and the axis of rotation Z
- Vx represents the linear speed of the translation movement along the X axis, preferably calculated as the derivative of the distance R, or measured from the reference speed Vx ref supplied to the input of the Dx drive in charge of driving the motor.
- rotation Mx (see dotted arrow in Figure 3),
- Vx represents the acceleration of the translation movement along the X axis, calculated as the derivative of the speed V x ,
- Vy represents the angular velocity of the rotation movement of the hanging point 10
- Vy represents the angular acceleration of the rotational movement, calculated as the derivative of the velocity Vy,
- K f represents a fixed coefficient of friction
- Equation a) shows that the control device uses the ⁇ "x acceleration of the angle ⁇ x as the internal variable and that the only input variables supplied to the estimator module 21 are the length of the cables L, the distance R and the angular velocity of rotation Vy.
- the first skew angle ⁇ x and the velocity ⁇ 'x are calculated using an iterative process over time, that is, the results are recalculated periodically to each moment t, using in particular the results obtained at the moment previous t-1.
- This iterative process uses the acceleration ⁇ "x and can be represented at any time t as follows:
- ⁇ x t and ⁇ x t- i represent the first dangling angle respectively at a time t and at a previous instant t-1
- ⁇ 'xt and ⁇ 'xt-i represent the speed of the dangling angle ⁇ x respectively at instants t and t-1
- ⁇ "x t and ⁇ " x t- i represent the acceleration of the swinging angle ⁇ x respectively at times t and t-1
- V'x t represents the acceleration of the translational movement at time t
- Vx t and Vx t- i represent the speed of the translational movement respectively at times t and t-1
- Vz t represents the lifting speed at time t
- R t and Rn represent the distance R respectively at times t and t-1
- Vy t represents the speed of rotation at time t
- L t and Lu represent the length of the cables respectively at times t and t-1
- ⁇ t represents the time difference between the moment t and moment
- equation b) shows that the regulator uses the ⁇ "y acceleration of the angle ⁇ y as the internal variable and that the only input variables supplied to the estimator module 21 are the length of the cables L, the distance R and the rotational angular velocity Vy.
- the second dangling angle ⁇ y and the velocity ⁇ 'y are calculated using an iterative process over time, that is, the results are recalculated from periodically at each instant t, using in particular the results obtained at the previous instant t-1
- This iterative process uses the acceleration ⁇ "y and can be represented at any time t as follows:
- Vy 1 (Vy 1 - Vy 1-1 ) / ⁇ t
- ⁇ yt and ⁇ yt - ⁇ represent the second swing angle respectively at a time t and at a previous instant t-1
- ⁇ 'y t and ⁇ 'y t- i represent the speed of the angle ⁇ y respectively at the moments t and t-1
- ⁇ "yt and ⁇ " yt- ⁇ represent the acceleration of the angle ⁇ y respectively at times t and t-1
- V'y t represents the angular acceleration of the rotational movement at time t
- Vz t represents the lifting speed at time t
- Vy t and Vy t- i represent the rotational angular velocity respectively at times t and t-1
- L t and Lu represent the length of the cables respectively at times t and t-1
- ⁇ t represents the time difference between the instant t and the moment t-1.
- Equation a) has a specific term "Vy 2 * R * cos ⁇ x" which is always positive when the rotation speed Vy is non-zero. This translates the influence of the centrifugal force which makes that, as soon as a rotation movement is in progress (even with a zero acceleration Vy), a first bending angle ⁇ x is created in the X direction, perpendicular to the Tangential axis Y.
- the objective of the regulation is not to cancel this ballant during the rotational movement but only to reach a position of equilibrium with a non-zero ballad of the load 15 corresponding to an angle of non-zero balance during the rotation, then return to a swing angle ⁇ x zero at the end of the rotational movement, when the rotation speed Vy is zero.
- this equilibrium angle therefore corresponds to an offset value, denoted by ⁇ x eq .
- ⁇ x eq the offset value
- the corrector module 22 receives as input the calculated estimates of ⁇ x, ⁇ y, ⁇ 'x, ⁇ 'y from the estimator module 21 and applies a correction coefficient K 0 , respectively K ' ⁇ , to provide the correction signals ⁇ Vx and ⁇ Vy, according to the following equations:
- K 0x and K ⁇ y are correction coefficients respectively applied to the swinging angles ⁇ x and ⁇ y for the translational and rotational movements
- K ' ⁇ x and K' ⁇ y are correction coefficients respectively applied to speeds of the swinging angles ⁇ 'x and ⁇ 'y for the translational and rotational movements
- ⁇ Vx and ⁇ Vy are the correction signals to be applied respectively to the speed commands Vcx and Vcy
- ⁇ x eq is the offset value of the angle ⁇ x during the rotational movement.
- the first correction signal ⁇ Vx therefore does not depend directly on the first swing angle ⁇ x but on the difference between the first swing angle ⁇ x and the offset value ⁇ x eq .
- the offset value ⁇ x eq is non-zero and therefore the regulating device 20 delivers a correction signal ⁇ Vx which takes into account the value of offset generated by the centrifugal force on the swinging angle ⁇ x.
- the offset value ⁇ x eq automatically becomes zero and the regulator 20 then applies a correction signal ⁇ Vx which is proportional to ⁇ x and ⁇ 'x.
- the values of the correction coefficients K 0 , K ' ⁇ are fixed.
- the values of the correction coefficients K 0 , K ' ⁇ are modifiable as a function of the length L of the cables determined by the device 20, so as to optimize the speed corrections to be made according to the height of the pendulum formed by the load 15.
- the correction module 22 receives as input information representative of the length L and is therefore capable of storing several values of K 0 , K ' 0 along the length L.
- the automation system of the crane 5 controls only a displacement in rotation, that is to say that it provides a translation speed setpoint Vcx which is zero.
- the rotational movement thus generates a first swinging angle ⁇ x along the translation axis X caused by the centrifugal force applied to the load 15, as well as a second swinging angle ⁇ y along the tangential axis Y caused by the acceleration / deceleration of the rotational movement.
- the first swinging angle can be canceled only by acting on the translational movement.
- the automation system of the crane 5 also controls a translational movement, that is to say that it also provides a non-zero translation speed reference Vcx.
- This translational movement also creates a swinging along the X axis caused by the acceleration / deceleration of the translational movement.
- the first dangling angle ⁇ x then represents the accumulation of the dangling generated by the translation and rotation movements.
- control device does not include any preliminary modeling step, which would require measuring other physical parameters such as a measurement of the swing angle or a measurement of the current flowing in the motor, for the purpose of determining or to refine a particular mathematical model or for the purpose of establishing a transfer function between the speed of the carriage and the dangling angle measured by a sensor for a given cable length.
- the control device thus described is intended to be implanted in an automation system of the crane 5, responsible in particular for controlling and monitoring the movements of the load 15.
- This automation system comprises in particular a speed variator Dx for the movement translation and a variable speed drive Dy for the rotational movement. Due to its simplicity, the control device can be installed directly in the variable speed drives Dx and Dy, for example by means of a specific module of the drive.
- the automation system may also include a programmable controller which serves in particular to provide the Vcx and Vcy speed instructions. In this case, the control device can also be easily integrated into an application program of the programmable controller.
- the regulating device implements a method of regulating the displacement of the load 15 in a rotational movement about the Z axis possibly associated with a translation movement along the X axis.
- the regulation method comprises a calculation step , carried out by the estimator module 21, which makes it possible to determine a first swinging angle ⁇ x and a speed ⁇ 'x of this swinging angle.
- the calculation step uses only the length L, the distance R and the rotational speed Vy of the hooked point 10 as input variables and uses the acceleration ⁇ "x as an internal variable. a pendulum model with damping.
- the control method also comprises a correction step performed by the correction module 22.
- the correction step calculates an offset value ⁇ x eq of the angle ⁇ x which is proportional to the rotation speed Vy and delivers a first signal correction ⁇ Vx of the translation speed which takes into account the offset value ⁇ x eq .
- the first correction signal ⁇ Vx is calculated by applying a correction coefficient K 0x to the difference between the first swinging angle ⁇ x and the offset value ⁇ x eq and a correction coefficient K ' ⁇ x at the speed ⁇ 'x.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0858598A FR2939783B1 (fr) | 2008-12-15 | 2008-12-15 | Dispositif de regulation du deplacement d'une charge suspendue a une grue |
| PCT/EP2009/067008 WO2010069890A1 (fr) | 2008-12-15 | 2009-12-14 | Dispositif de regulation du deplacement d'une charge suspendue a une grue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2361216A1 true EP2361216A1 (fr) | 2011-08-31 |
| EP2361216B1 EP2361216B1 (fr) | 2013-12-25 |
Family
ID=40873226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09771368.9A Active EP2361216B1 (fr) | 2008-12-15 | 2009-12-14 | Dispositif de regulation du deplacement d'une charge suspendue a une grue |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8504253B2 (fr) |
| EP (1) | EP2361216B1 (fr) |
| JP (1) | JP2012512111A (fr) |
| CN (1) | CN102245490B (fr) |
| FR (1) | FR2939783B1 (fr) |
| WO (1) | WO2010069890A1 (fr) |
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| ES2447018T3 (es) | 2011-08-26 | 2014-03-11 | Liebherr-Werk Nenzing Gmbh | Aparato de control de grúa |
| CN102367158B (zh) * | 2011-09-15 | 2013-05-15 | 济南富友慧明监控设备有限公司 | 一种基于塔身刚度的塔机倾翻临界状态判断方法 |
| CN102367159B (zh) * | 2011-09-15 | 2013-05-15 | 济南富友慧明监控设备有限公司 | 一种判断塔机偏拉的方法 |
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| CN102491178B (zh) * | 2011-12-15 | 2014-07-09 | 中联重科股份有限公司 | 起重机回转控制的方法与系统 |
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| EP2896590A1 (fr) | 2014-01-16 | 2015-07-22 | Caporali Roberto Paolo Luigi | Procede et dispositif pour contrôler en boucle ouverte l'oscillation de la charge pour engin rotatif de levage |
| CN103991801B (zh) * | 2014-05-12 | 2016-02-17 | 中联重科股份有限公司 | 塔机及其吊钩防摇控制方法、装置和系统 |
| US9422139B1 (en) * | 2014-05-19 | 2016-08-23 | Google Inc. | Method of actively controlling winch swing via modulated uptake and release |
| NO338432B1 (no) * | 2016-01-20 | 2016-08-15 | Frode Olsen | Høy hastighets rotor. Motorenheter (M) som vil gjøre det mulig å montere flere enheter sammen til en større og kraftigere enhet. Motorenheten benyttes så i serier for å gi høy rotasjonshastighet |
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| GB1132967A (en) * | 1964-12-08 | 1968-11-06 | Davy And United Instr Ltd | Control systems for preventing swinging of suspended loads |
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| DE69025471T2 (de) * | 1990-03-23 | 1996-08-22 | Kobe Steel Ltd | Verfahren und vorrichtung zur steuerung des abbremsens der drehbewegung des oberen drehteils von baumaschinen und rechengerät zur ermittlung des neigungswinkels |
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| JP2564060B2 (ja) * | 1991-10-24 | 1996-12-18 | 株式会社神戸製鋼所 | 建設機械の安全装置 |
| JP2837313B2 (ja) * | 1992-05-22 | 1998-12-16 | 川鉄マシナリー株式会社 | クレーンの振れ止め・位置決め制御装置 |
| KR970003508B1 (ko) * | 1994-03-25 | 1997-03-18 | 한국원자력연구소 | 크레인의 진동방지를 위한 속도 제어 방법 |
| DE19519368A1 (de) * | 1995-05-26 | 1996-11-28 | Bilfinger Berger Bau | Verfahren zur Bestimmung der Position einer Last |
| JP3850520B2 (ja) * | 1997-08-19 | 2006-11-29 | 住友重機械工業株式会社 | クレ−ンの振れ角計測装置 |
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| JP2000219482A (ja) * | 1999-01-28 | 2000-08-08 | Hitachi Service & Engineering (West) Ltd | クレーンの制御方法及び制御装置 |
| ES2260313T3 (es) * | 2000-10-19 | 2006-11-01 | Liebherr-Werk Nenzing Gmbh | Grua o excavadora para el volteado de una carga suspendida de un cable portacarga con amortiguacion de la oscilacion de la carga. |
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| CN2663386Y (zh) * | 2003-12-10 | 2004-12-15 | 武汉港迪自动化系统有限责任公司 | 卸船机智能控制电子防摇设备 |
| KR101206312B1 (ko) * | 2005-06-28 | 2012-11-29 | 에이비비 에이비 | 크레인용 화물 제어 장치 |
| DE102007039408A1 (de) * | 2007-05-16 | 2008-11-20 | Liebherr-Werk Nenzing Gmbh | Kransteuerung, Kran und Verfahren |
| US7832126B2 (en) * | 2007-05-17 | 2010-11-16 | Siemens Industry, Inc. | Systems, devices, and/or methods regarding excavating |
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| FR2923818A1 (fr) * | 2007-11-19 | 2009-05-22 | Schneider Toshiba Inverter | Dispositif de regulation du deplacement d'une charge suspendue. |
-
2008
- 2008-12-15 FR FR0858598A patent/FR2939783B1/fr not_active Expired - Fee Related
-
2009
- 2009-12-14 EP EP09771368.9A patent/EP2361216B1/fr active Active
- 2009-12-14 CN CN200980148930.9A patent/CN102245490B/zh active Active
- 2009-12-14 WO PCT/EP2009/067008 patent/WO2010069890A1/fr not_active Ceased
- 2009-12-14 US US13/128,768 patent/US8504253B2/en active Active
- 2009-12-14 JP JP2011540129A patent/JP2012512111A/ja active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010069890A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102245490A (zh) | 2011-11-16 |
| US20110218714A1 (en) | 2011-09-08 |
| FR2939783A1 (fr) | 2010-06-18 |
| FR2939783B1 (fr) | 2013-02-15 |
| WO2010069890A1 (fr) | 2010-06-24 |
| US8504253B2 (en) | 2013-08-06 |
| EP2361216B1 (fr) | 2013-12-25 |
| JP2012512111A (ja) | 2012-05-31 |
| CN102245490B (zh) | 2013-07-24 |
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