WO1997048635A1 - Grue et procede de fonctionnement de cette derniere - Google Patents

Grue et procede de fonctionnement de cette derniere Download PDF

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Publication number
WO1997048635A1
WO1997048635A1 PCT/JP1996/001723 JP9601723W WO9748635A1 WO 1997048635 A1 WO1997048635 A1 WO 1997048635A1 JP 9601723 W JP9601723 W JP 9601723W WO 9748635 A1 WO9748635 A1 WO 9748635A1
Authority
WO
WIPO (PCT)
Prior art keywords
trolley
sheave
rope
crane
main
Prior art date
Application number
PCT/JP1996/001723
Other languages
English (en)
Japanese (ja)
Inventor
Masashi Sugano
Kiyoshi Yamashita
Hironobu Murata
Kiyoshi Gomi
Original Assignee
Hitachi, Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi, Ltd. filed Critical Hitachi, Ltd.
Priority to AU61380/96A priority Critical patent/AU6138096A/en
Priority to PCT/JP1996/001723 priority patent/WO1997048635A1/fr
Publication of WO1997048635A1 publication Critical patent/WO1997048635A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C21/00—Cable cranes, i.e. comprising hoisting devices running on aerial cable-ways
    • 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

Definitions

  • the present invention relates to a steady rest device and a steady rest method for a crane hanger having a trolley.
  • the present invention relates to a steadying device and a steadying method for a hanger suitable for a cable crane.
  • steady rest devices have been proposed and put into practical use in the crane where a hanging device is hung from a trolley.
  • One of the steady rests is a mechanical means, and the other is an electrical means for controlling acceleration / deceleration and timing of acceleration / deceleration.
  • one lifting device is suspended from two trolleys to increase the distance between the two trolleys.
  • the rope that suspends the hanger is stretched in a V shape.
  • the Japanese Patent Publication No. 58-2916 discloses that after starting the first trolley, the rear trolley starts accelerating at the same acceleration as the acceleration of the first trolley. The same deceleration is given simultaneously to the motor and it stops. If the rope shape obstructs the object when lowering the lifting device, for example, move the rear trolley to the first trolley.
  • the swing time after stopping the traveling of the trolley can be shortened as compared to the case where the ropes are arranged in parallel. It is.
  • the cable crane is used for dam construction, so the traveling distance of the trolley is high because of the long traveling distance, and the length from the trolley to the hanging equipment is also large. For example, the height from the bottom of the dam to the trolley is 150 m. For this reason, the amplitude of the touch and the swing time are extremely large. Therefore, especially in the cable crane, there is a demand for the steadying of the hanger.
  • An object of the present invention is to make it possible to stop the swing of the hanging tool in a short time.
  • the present invention is a.
  • the hoisting rope is sequentially passed from the first position of the trolley through the first sheave of the hanging tool, the second sheave of the trolley, and the third sheave of the hanging tool. Fixed in a second position on said trolley,
  • the distance in the traveling direction between the first position and the hanging device is provided to be larger than the distance in the traveling direction between the hanging device and the second position.
  • sheaves can be arranged at the first position and the second position. If the trolley is divided into two parts,
  • a predetermined number of winding ropes are wound between the first trolley and the lifting device, a predetermined number of winding ropes are mounted between the second trolley and the lifting device, The number of the ropes between the first trolley and the hanging device is smaller than the number of the ropes between the second trolley and the hanging device,
  • the rope hanging on the first trolley and the rope hanging on the second trolley are constituted by one continuous rope.
  • FIG. 1 is a layout view of ropes of a cable crane according to one embodiment of the present invention.
  • FIG. 2 is an explanatory diagram of the cargo handling state of the Kekeburg lane in FIG.
  • FIG. 3 is a configuration diagram of a drive device for traveling a trolley according to one embodiment of the present invention.
  • FIG. 4 is a front view of one of the speed reducers of FIG.
  • FIG. 5 is a configuration diagram of a device of the drive device of FIG.
  • FIG. 6 is a chart explaining the operation of the driving device of FIG.
  • a main cable 23 extends between the main tower 20 and the sub tower 21.
  • the main cable 23 carries a main trolley 25 and an auxiliary trolley 26. From the main tower 20 side, there are auxiliary trolley 26, main trolley 25, and sub tower 21 in order.
  • the rope 3 2 of the hoisting device 3 1 installed at the lower part of the main tower 20 has a sheave 101 of the main tower 20, a sheave 102 of the auxiliary trolley 26, a sheave 110 of the hanging tool 40,
  • the main tower 25 is fixed to the subtower 21 via the sheave 104 of the main trolley 25, the sheave 105 of the hanging device 40, and the sheave 106 of the main trolley 25 sequentially.
  • the sheaves 103 and 105 are located apart from each other in the longitudinal direction of the main rope 23.
  • the sheaves 104 and 106 are set apart in the longitudinal direction of the main rope 23.
  • the hanging member 40 includes sheaves 103, 105, a member 41 for supporting the sheaves 103, and a hanging member 42 pin-connected to the member 41.
  • Hanging device 4 2 is a sieve 1 0 3
  • the sheave 103 is connected to the support member 41 on the sheave 105 side of the middle between the sheave 105 and the sheave 105, and is higher than the sheave 105 side.
  • the number of the ropes 3 2 between the auxiliary trolley 26 and the hanging device 40 is one.
  • the number of the ropes 32 between the main trolley 25 and the hanging device 40 is three. is there. Since the main trolley 25 is loaded with a larger load than the auxiliary trolley 26, the number of wheels of the main trolley on the main cable 23 is larger than the number of wheels of the auxiliary trolley.
  • the hanging member 40 is not located between the two trolleys 25 and 26, but is located on the raw trolley 25 side where the number of ropes 32 is large.
  • the rope 32 When the rope 32 is hung as described above, the rope 32 becomes V-shaped with respect to the hanging member 4 °.
  • the distance in the running direction between the sheaves 102 and the center of the hanger 40 is greater than the distance in the running direction between the center of the hanger 40 and the sheave 106.
  • One end of the rope 52 wound on the first traversing drum 51 of the traversing device for moving the main trolley 25 along the main rope 23 is connected to the main tower 20 via a sheave 111 of the main tower 20. It is fixed to one end of the roll 25.
  • the other end of the rope 52 is fixed to the other end of the main trolley 25 by sequentially passing through the sheaves 112 of the main tower 20 and the sheaves 113, 114 of the sub tower 21. are doing. Black circles indicate fixed points.
  • the ends of the rope 52 are connected by members of the main trolley 25 or the like.
  • One end of the rope 56 of the second traversing drum 55 of the traversing device is fixed to the auxiliary trolley 26 via the sheave 121 of the main tower 20.
  • the other end of the rope 56 is fixed to the auxiliary trolley 26 via the sheaves 122 of the main tower 20 and the sheaves 123, 124 of the sub tower 21 sequentially. .
  • Black circles indicate fixed points.
  • the traversing drum 51 is for traveling of the main trolley 25, and the traversing drum 55 is for traveling of the auxiliary trolley 26.
  • the traversing drums 51 and 55 are provided below the main tower 20.
  • the traversing drums 51 and 55 can operate independently.
  • the traversing drums 51 and 55 can make the winding speed (unwinding speed) of the ropes 52 and 56 the same, and the winding speed (unwinding speed) of the rope 52 can be adjusted by the rope. 5 of 6 Can be higher than the winding speed (unwinding speed).
  • the winding speed of the lobes 52 (unwinding speed) is set to the winding speed of the ropes 56 (unwinding speed).
  • the sieves 101, 111, 121, 114, 124 are below the sieves 112, 122, 113, 123.
  • the ends of the ropes 52, 56 may be located on the trolleys 25, 26 or on the traversing drums 51, 55.
  • the cargo handling work having such a configuration will be described with reference to FIG. Figure 2 shows a case where the target position is a position far away from the loading position 2OA on the main tower 20 side.
  • a load (mainly concrete) is loaded on the hanging tool 40 stopped near the main tower 20 and at an elevated position 2 OA, and the toro is moved toward the destination on the side of the sub tower 21. Run the wheels 25 and 26. When loading, the distance between the two trolleys 25, 26 is kept small. This is to prevent the interval between the two towers 20 and 21 from becoming unnecessarily large.
  • the lifting gear 40 is raised, and then the trolleys 25, 26 are simultaneously accelerated toward the destination, and are simultaneously driven at a constant speed, simultaneously decelerated, and stopped. During this traveling, the rope 32 is fed out from the hoisting device 31 and the hanging member 40 is lowered.
  • the hoisting device 31 is operated to pull out the rope 32, prevent the lifting device 40 from rising, and reduce the tension of the rope 32. Prevent rise. Since the winding rope 32 is a continuous one and can be driven by one device 31, the device can be simplified. On the return path, the lifting device 40 descends, and is raised by the hoisting device 31.
  • the operation of the hoisting device 31 is performed manually or by an automatic device.
  • the automatic device drives the hoisting device 31 according to the interval between the two trolleys 25, 26.
  • the two trolleys 25 and 26 are simultaneously driven in the same direction. Or drive one of the trolleys.
  • the lifting device 40 After discharging the load at the destination on the valley side, the lifting device 40 is raised, and the two trolleys 25 and 26 are moved toward the load loading position 20A. As described above, the traveling speed of the main trolley 25 is higher than that of the auxiliary trolley 26. The timing of deceleration is the same for both. For this reason, at the loading position 20 mm, the interval between the two trolleys 25 and 26 is small. Since the loading position 20 A is at a high place, the length of the lifting device 40 is short. In addition, when traveling toward the loading position 20 A, the hanging tool 40 is generally empty. For this reason, even if the interval between the two trolleys 25 and 26 is short, the run-out can be suppressed. The rope 32 is wound up by the hoisting device 31 during traveling, and the lowering of the lifting device 4 ⁇ due to the decrease in the interval between the two trolleys 25, 26 is prevented.
  • the suppression of the swing of the hanging tool 40 will be described.
  • the swing can be stopped in a shorter time than in the case where the number of ropes between them is the same. That is, in this embodiment, the number of the ropes 32 between the hanging tool 40 and the auxiliary trolley 26 is one, whereas the number of the lobes 3 between the hanging tool 40 and the main trolley 25 is one. The number of 2 is 3. Therefore, the vibration can be stopped in a shorter time. In other words, it is considered that the swing can be stopped in a short time due to the difference in the number of ropes applied to each of the trolleys 25 and 26.
  • the experimental results using the model will be described.
  • the model is located between the two trolleys 25 and 26, between the two towers 20 and 21 at a distance of about 15 m between the two towers.
  • the manner of tensioning the ropes 32 and the like is the same as described above.
  • the sheave is for a model and the bearing is a sleeve.
  • the main rope and rope are fishing lines.
  • the number of mouths between 40 and the main trolley 25 is the same, and the lobe 32 is stretched in a V-shape.
  • the sheaves 103 and 104 remain on the hanging tool 40 and the main trolley 25 and are laid.
  • the distance to pull the hanger 40 in the running direction is 0.5 m. In pulling the hanging member 40 in the running direction, the hanging member 40 was not pulled downward (the direction of pulling the hanging member 40 is on the auxiliary trolley 26 side.
  • the length of the pendulum is constant at 1.5 m.
  • the height position of 21 is the same, and the height positions of the two trolleys 25 and 26 are substantially the same.
  • the reason for the effect in the case of the above (1) is due to the difference in the number of ropes from the hanging tool 40 to the main trolley 25 and the auxiliary trolley 26.
  • the swing of the hanging tool 40 can be suppressed.
  • auxiliary trolley 26 is pushed toward the main tower 20, and the main trolley 25 is pushed toward the sub tower 21, due to the mass of the hanging tool 40. For this reason, auxiliary trolley 26 and sieve
  • the weight of the suspending tool 40 is mainly applied to the main trolley 25, so that the weight applied to the auxiliary trolley 26 is light. Therefore, the auxiliary trolley 26 can be easily driven. This embodiment is also effective from this point.
  • the run-out time is slightly shorter in the case of running with the main trolley 25 at the head than in the case of the opposite case.
  • the suspension 40 In the case of traveling with the auxiliary trolley at the top, visually, when the suspension 40 first swings forward after stopping traveling, it appears that there is no steadying action. For this reason, it is considered better to run the vehicle with the main trolley 25 at the head while the load is suspended, and to run with the auxiliary trolley 26 at the head on the return route with the load unloaded.
  • the return path is generally empty, and the stop point (load loading position) of the return path is at a high place, so that the length of the suspenders 40 (the length of the pendulum) is also short. For this reason, the run-out can be suppressed even if the interval between the two trolleys is short. Therefore, according to this, the reciprocation can be stopped in a short time.
  • the distance between the two trolleys 25 and 26 increases toward the side of the sub tower 21.
  • the auxiliary trolley 26 is set at the front side, the distance between the suspending tool 40 and the auxiliary trolley 26 becomes large, and it becomes difficult to lean the hanging tool 40 to the sub tower 21 side. It is necessary to increase the space between the role position and the sub tower 21.
  • the distance between the hanging member 40 and the main trolley 25 is small.
  • the distance between the two trolleys 25 and 26 is small, and the distance between the hanging tool 40 and the auxiliary trolley 26 is small. Therefore, when traveling to the sub tower 21 side, it is better to put the main trolley 25 first.
  • the ratio of the traveling speeds of the two hanging members 25 and 26 can be selected according to the length from the trolley to the hanging member 40 and the like. It is also considered good to make the traveling speeds of the two trolleys 25 and 26 the same.
  • the hanging device 40 has two sheaves 103 and 105 in the running direction. For this reason, the inclination angle of the line connecting the two sheaves 103, 105 is determined by the mass of the load. Therefore, the sheave 1 0 3 and sheet hanging member 42 attached to one blanking 1 0 5 intermediate by Ri also one Bed 1 0 5 side position, c then always I can maintain the same state Unishi
  • the driving means of the carriers 13 1, 13 2, 13 3 that support the transverse lobes 52, 56 will be described with reference to FIG.
  • two trolleys 25 and 26 and carriers 131, 132 and 133 are front views. Other devices are perspective views. '
  • Carriers 1 3 1, 1 3 2, 1 3 3 are mounted on main rope 23 via wheels and run on main rope 23.
  • Carrier 1 3 1, 1 3 2 1 3 3 sequentially support Oite below the main rope 2 3, the rope 1 3 6 1 3 7, 5 6, 5 2 from above.
  • Auxiliary trolley 26 also supports ropes 13 36, 1 37, 52.
  • the main trolley 25 similarly supports the ropes 13 6, 13 7, 56.
  • the trolleys 25 and 26 and the carriers 13 1, 13 2 and 13 33 have rollers (not shown) at the part supporting the rope.
  • the mouth 1 36 fixed to the carrier 13 2 is the sheaves 14 1, 1 4 of the main tower 20.
  • the lobe 1 3 7 fixed to the carrier 13 1 passes through the sheaves 14 6 and 1 4 7 of the main tower 20 and the sheaves 14 8 and 14 9 of the sub tower 21 sequentially, and the carrier 1 3 After being fixed to 3, it is fixed to carrier 1 3 1.
  • the sheaves 112, 113 are driven by the rope 52 and drive the sheaves 147, 148.
  • Drives 1 2 2 and 1 2 3 are driven by lobes 5 6 to drive drives 1 4 2 and 1 4 3.
  • the diameter of sheaves 142 and 144 is set so that carrier 132 can be positioned between main trolley 25 and carrier 133.
  • the diameter of the sheaves 147 and 148 is such that the carrier 13 is located between the main tower 20 and the auxiliary trolley 26, and the carrier is located between the carrier 13 and the sub tower 21. Set so that 1 3 3 is located. Since the traveling speeds of the two trolleys are different, it is difficult to set the trolley to the middle position.
  • sub tower 21 there are 1 2 1, 1 1 1, 1 0 1 sequentially.
  • sheaves 12 23, 11 3, 144, 1449, 124, and 114 in this order from above.
  • Sheaves 1 2 2 and 1 4 3 may be provided on the respective axes of sheaves 1 1 2 and 1 1 3. If the distance between the main tower 20 and the sub tower 21 is large, add one carrier between the two trolleys 25:26 to add the main trolley 25 and the sub tower 21. And three carriers. For example, three sheaves for driving a carrier are fixed to each of sheaves 112, 123. The rope hung on the large-diameter sheave is fixed to the carrier between the two trolleys 25 and 26 and the carrier closest to the sub tower 21. The rope hung on the medium-diameter sheave is fixed to the intermediate carrier in the carrier between the main trolley 25 and the sub tower 21. The rope hung on the small-diameter sieve is the carrier between the main trolley 25 and the sub tower 21 that is closest to the main trolley 25, and the carrier that is closest to the main tower 2 °. Fixed to.
  • a driving device for the drums 51 and 55 will be described with reference to FIGS.
  • the traveling speed of the main trolley 25 may be higher than the traveling speed of the auxiliary trolley 26.
  • it is desirable that the traveling speed ratio of the two trolleys is not constant but can be arbitrarily changed.
  • one trolley generally, the main trolley 25
  • the other trolley is stopped. It is desirable to make the trolley (auxiliary trolley 26) run toward the one trolley-to reduce the interval between the two trolleys.
  • the driving device for the drums 51 and 55 for this purpose will be described below.
  • FIG. 3 there is one electric motor 201 between two drums 51, 55. c Between the electric motor 201 and the drums 51, 52, there are reduction gears 210, 230, respectively. is there. A magnetic brake 203 is installed between the output shaft of the electric motor 201 and the input shaft of the speed reducer 230. The other output shaft of the motor 201 is connected to the input shaft of the speed reducer 210.
  • the reduction gears 210 and 230 are configured so that two reduction ratios can be selected. That is, each of the speed reducers 210 and 230 has two gear trains between the input shaft and the output shaft. In each reducer 2 10 and 2 3 0, two The gear trains have different reduction ratios. By moving the clutch shifters 2 2 1 and 2 4 1 of the input shaft in the axial direction, one of the two gear trains can be selected. The movement of the clutch shifters 2 2 1 and 2 4 1 lie on one of the two gear trains, and the power can be transmitted.
  • One of the reduction ratios of the speed reducer 210 and the one of the speed reducer 230 is the same.
  • the other reduction ratio of the speed reducer 210 is different from the other reduction ratio of the speed reducer 230.
  • the reduction ratio was calculated including the diameters of the drums 51 and 55.
  • Magnet brakes 215 and 235 are installed on the intermediate shafts of the reduction gears 210 and 230, respectively.
  • the braking capacity of brakes 2 15 and 23 5 is smaller than that of brake 2 ⁇ 3.
  • Tachometers 218 and 238 are installed on the output shafts of reduction gears 210 and 230, respectively. The tachometers 218 and 238 detect the operating states of the brakes 215 and 255.
  • the small shaft wheels 219 and 239 at the shaft ends of the output shafts 218 and 238 are matched with the large shaft wheels 51a and 55a of the drums 51 and 55.
  • 222 and 242 are cylinder devices for moving the clutch shifters 221 and 241.
  • the cylinder devices 222 and 242 can be stopped in three stages.
  • Reference numerals 2 23 and 24 3 are levers connected to the clutch shifters 22 1 and 24 1.
  • 2 2 4, 2 2 5, 2 4 4, 2 4 5 are detectors, and the clutch shifter 2 2 1, 2 4 1 is engaged with the clutch of any gear train, and ⁇ ⁇ Detect if they are not engaged.
  • the detectors 222, 225, 244, 245 can contact the levers 223, 243.
  • FIG. 5 shows the overall configuration of the control device.
  • Reference numeral 250 denotes an operation device for commanding the operation of the motor 201, the brakes 203, 215, 235, and the cylinder devices 222, 242.
  • Reference numeral 260 denotes a control device for controlling various devices such as the electric motor 201
  • reference numeral 270 denotes a display device for displaying the operation status of the various devices. Displays the reduction ratio, etc. table
  • the indicating device 270 is installed near the operating device 250 in the cab.
  • one of the gear trains of the speed reducers 210 and 230 is selected to make the reduction ratio the same. If it is desired to increase the traveling speed of one of the trolleys, select the reduction ratio of the speed reducers 210 and 230 accordingly. If one trolley is stopped and the other travels, set the brake on the output shaft side of the reduction gear of one trolley that stops traveling and set the shifters 221, 241 in the neutral state. To Set the shifter of the speed reducer of the trolley to be driven to the desired reduction ratio. Next, the brakes 203, 215, 235 are released, and the motor 201 is operated.
  • step S1 the power supply to the motor 201 is turned off by the operating device 250, and the brakes 203, 2115, and 235 are set (step S1). . This is for security. The operation of the electric motor 201 and the brakes 203, 215 and 235 is performed by operating the operation device 250.
  • a release command of the brake 203 is displayed on the display device 270 (step S5).
  • step S11 the brake 203 is released (step S11).
  • the brake 203 is operated to perform an emergency stop. If no rotation is detected, a command to switch the reduction ratio is displayed on the display device 270 (steps S15, S17, S19).
  • step SI 1 the clutch is easily engaged
  • the following display is made based on the operation state of the detectors 224, 225, 244, 245. That is, based on the detection values of the detectors 2 24, 2 25, 244, and 245, the display device 2 70 displays which gear train meshes with each of the reduction gears 210, 230. To be displayed. "The force engaged in any gear train is indicated by turning on the indicator light indicating the gear ratio. If no gear train is engaged, this is indicated. In this case, it is advisable to display the trolley for stopping the traveling, because the traveling of one trolley may be stopped, so it is normal that they do not lie (steps S23, S25).
  • step S23 If the engagement state is not displayed in step S23, the cylinder devices 222, 242 are returned to the intermediate position, and the clutch shifters 222, 241 are returned to the intermediate position. Then, when the back c class Tchishifuta 2 2 1 rotated a small amount to inching operation the electric motor 2 0 1, 24 1 in an intermediate position, the clutch shifter 2 2 1, 2 4 1 is rotated together with the input shaft, the gear The rows can rotate freely with respect to the input shaft. The following returns to step S21.
  • the operation of switching the reduction ratio can be easily performed. Further, when the two trolleys 25 and 26 are driven, a combination of three types of running speed ratios can be obtained. If the traveling section is long, the traveling speed increases. Therefore, the speed ratio of the two trolleys is increased to suppress the swing of the lifting device 40.
  • the tachometers 218 and 238 can be omitted. However, in this case, it is difficult to check the safety by the amount removed.
  • the traveling drums of the trolleys 25 and 26 are composed of two drums as is well known, and these two drums may be hung with ropes 52 and 56 in an endless shape.
  • the drum is formed by stacking a plurality of sieves in the axial direction.
  • the present invention can also be applied to a crane running on a girder as disclosed in Japanese Patent Publication No. 58-2916 and Japanese Utility Model Application Laid-open No. 63-13986. Further, also c is hoist 3 1 drive the ropes 3 2 can be installed in the auxiliary Toro Li 2 6 or main Toro Li 2 5, main Toro Li 2 5 and the auxiliary Toro Li 26 can integrally. However, in this case, the interval cannot be controlled.
  • Known driving means can be used for driving the two trolleys 25 and 26.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

Cette invention a pour but d'arrêter le balancement d'un accessoire de treuillage en un court laps de temps. A cette fin, une corde de treuillage (32) est fixée à une tour auxiliaire (21) par l'intermédiaire des éléments suivants: une réa (101) d'une tour principale (20); une réa (102) d'un chariot auxiliaire (26), une réa (103) d'un accessoire de treuillage (40), une réa d'un chariot principal (25), une réa (105) de l'accessoire de treuillage (40) et, enfin, une réa (106) du chariot principal (25). Le nombre de cordes entre le chariot auxiliaire (26) et l'accessoire de treuillage (40) est inférieur au nombre de cordes entre le chariot principal et ce même accessoire de treuillage (40). La vitesse de course du chariot principal (25) est supérieure à celle du chariot auxiliaire (26) sur la distance allant du côté tour principale (20) au côté tour auxiliaire (21).
PCT/JP1996/001723 1996-06-21 1996-06-21 Grue et procede de fonctionnement de cette derniere WO1997048635A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU61380/96A AU6138096A (en) 1996-06-21 1996-06-21 Crane and method for operating the same
PCT/JP1996/001723 WO1997048635A1 (fr) 1996-06-21 1996-06-21 Grue et procede de fonctionnement de cette derniere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1996/001723 WO1997048635A1 (fr) 1996-06-21 1996-06-21 Grue et procede de fonctionnement de cette derniere

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WO1997048635A1 true WO1997048635A1 (fr) 1997-12-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111348560A (zh) * 2020-04-10 2020-06-30 杭州国电大力机电工程有限公司 缆索起重机吊钩防摇摆的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4878644A (fr) * 1972-01-26 1973-10-22
JPS5063928U (fr) * 1973-10-08 1975-06-10
JPS582916B2 (ja) * 1974-12-06 1983-01-19 カワサキデンキコウギヨウ カブシキガイシヤ トロリウンテンセイギヨソウチ
JPS6313986U (fr) * 1986-07-14 1988-01-29
JPH03158390A (ja) * 1989-11-16 1991-07-08 Toshiba Corp 吊り物移動装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4878644A (fr) * 1972-01-26 1973-10-22
JPS5063928U (fr) * 1973-10-08 1975-06-10
JPS582916B2 (ja) * 1974-12-06 1983-01-19 カワサキデンキコウギヨウ カブシキガイシヤ トロリウンテンセイギヨソウチ
JPS6313986U (fr) * 1986-07-14 1988-01-29
JPH03158390A (ja) * 1989-11-16 1991-07-08 Toshiba Corp 吊り物移動装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111348560A (zh) * 2020-04-10 2020-06-30 杭州国电大力机电工程有限公司 缆索起重机吊钩防摇摆的方法

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